method and apparatus for sending and receiving signal, media and chip system

专利摘要:
This order provides a method and apparatus for sending and receiving signal, media and a chip system, to improve the performance of a terminal device. The method includes: receiving, at a terminal device, at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine N groups of reference signal resources, and each one of the N reference signal resource groups includes at least one reference signal resource; and sending a reference signal on a resource in a nth group of reference signal resources in the N groups of reference signal resources by using a jth group of antennas corresponding to the nth group of reference signal resources, in that the tenth group of antennas includes at least one antenna. Any two of the N groups of reference signal resources occupy different time units of the first type, the N groups of reference signal resources correspond to N groups of antennas, and any two of the N groups of antennas are different, where 1 less than or equal to 1 less than or equal to N, 1 less than or equal to j less than or equal to N, iej are integers, and N is an integer greater than or equal to 2.
公开号:BR112020008403A2
申请号:R112020008403-4
申请日:2018-11-16
公开日:2020-11-03
发明作者:Yi Qin；Binbin Zhang；Zhongfeng Li；Min Zhang
申请人:Huawei Technologies Co., Ltd.；
IPC主号:

专利说明:

[0001] [0001] This application claims priority to Chinese Patent Application No. 201711148344.7, filed with the Chinese Patent Office on November 17, 2017 and entitled “SIGNAL SENDING AND RECEIVING METHOD, APPARATUS, AND SYSTEM”, which is fully incorporated in this report as a reference. TECHNICAL FIELD
[0002] [0002] This order refers to the field of wireless communications and, more specifically, to a method and apparatus for sending and receiving the signal, and the system. FUNDAMENTALS
[0003] [0003] A sounding reference signal, SRS, is a reference signal used to measure an uplink channel. A network device can measure an uplink channel based on an SRS sent by a terminal device, to obtain channel state information (CSI) from the uplink channel, to program an uplink resource.
[0004] [0004] In some cases, the terminal device needs to send an SRS in an antenna switching manner. For example, in some systems characterized by channel reciprocity, the network device can estimate the CSIs of a downlink channel by using the uplinks channel CSIs obtained by measuring the uplink channel to program a downlink resource. However, if the number of uplink antennas configured for the terminal device is less than the number of uplink antennas, the terminal device must switch a plurality of antennas to send a plurality of SRSs, so that the network device obtains the CSIs of a plurality of downlink channels.
[0005] [0005] Currently, in a current method, the terminal device can calculate an antenna to be switched based on each opportunity to transmit a reference signal. However, this method is strongly correlated with a period of transmission of the reference signal and has a limitation to some extent. For example, in some systems, such as a new radio access technology system (New Radio Access Technology, NR) 5G, due to the fact that the transmission of some SRSs is not periodic, the terminal device cannot determine an antenna to be switched based on a transmission period and therefore cannot perform antenna switching. SUMMARY
[0006] [0006] This application provides a method and apparatus for sending and receiving signal, and system, in order to perform antenna switching based on a correspondence between a group of reference signal resources and a group of antennas, and to improve performance of a terminal device.
[0007] [0007] According to a first aspect, a signal sending method is provided, including: receiving, by a terminal device, at least a part of resource configuration information, where at least a part of resource configuration information it is used to determine N groups of reference signal resources, and each of the N groups of reference signal resources includes at least one reference signal resource; and send, through the terminal device, a reference signal in a resource in a nth group of reference signal resources in the N groups of reference signal resources through the use of a jean group of antennas corresponding to the nth group of reference resources reference signal, where the tenth group of antennas includes at least one antenna, where at least two of the N groups of reference signal resources occupy different time units of the first type, the N groups of reference signal resources are corresponding to the N antenna groups and at least two of the N antenna groups are different, where 1≤i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to 2.
[0008] [0008] Therefore, the terminal device in this mode of this request can determine a corresponding antenna group based on a reference signal resource group, send a reference signal in the reference signal resource group based on the antenna group , and flexibly perform antenna switching based on a match between a plurality of groups of reference signal resources and a plurality of groups of antennas. In comparison with the state of the art, antenna switching can be decoupled from a transmission period, and this mode is applicable to the transmission of the reference signal in several possible ways, thereby improving the performance of the terminal device.
[0009] [0009] Optionally, the N groups of reference signal resources are in one-to-one correspondence with the N groups of antennas.
[0010] [0010] In one embodiment, the terminal device receives at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine N reference signal resources; and the terminal device sends a reference signal on a nth reference signal resource on the N reference signal resources by using a jagged antenna group corresponding to the nth reference signal resource, where the jth antenna group includes at least one antenna. At least two of the N reference signal resources occupy different time units of the first type, the N reference signal resources correspond to the N antenna groups and at least two of the N antenna groups are different, where 1≤ i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to 2.
[0011] [0011] With reference to the first aspect, in some implementations of the first aspect, the method additionally includes: determining, by the terminal device, according to a predefined rule, the tenth group of antennas corresponding to the seventh group of reference signal resources.
[0012] [0012] In other words, the tenth group of antennas corresponding to the tenth group of reference signal resources can be determined by the terminal device, according to the predefined rule.
[0013] [0013] Optionally, the terminal device determines, based on an identifier of the reference signal resource and an antenna identifier, the tenth group of antennas corresponding to the nth group of reference signal resources.
[0014] [0014] With reference to the first aspect, in some implementations of the first aspect, the method additionally includes: receiving, by the terminal device, at least a part of antenna configuration information, where the antenna configuration information is used to indicate a correspondence between the N groups of antennas and the N groups of reference signal resources; and determining, by the terminal device based on the correspondence between the N groups of antennas and the N groups of reference signal resources, the tenth group of antennas corresponding to the nth group of reference signal resources.
[0015] [0015] In other words, the correspondence between the N groups of reference signal resources and the N groups of antennas can be configured by a network device, and is notified to the terminal device through the use of signaling, so that the terminal device determines the tenth group of antennas corresponding to the tenth group of reference signal resources.
[0016] [0016] With reference to the first aspect, in some implementations of the first aspect, the method additionally includes: receiving, by the terminal device, a plurality of parts of the first information, where each part of the first information is used to indicate whether a reference signal to be transmitted on a reference signal resource is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection; or receive, at the end device, at least a part of first information, where each part of first information is used to indicate whether the reference signals to be transmitted in all the reference signal resources in a set of reference signal resources to which a reference signal resource belongs are to be sent in an antenna switching manner or if reference signals are used to measure a channel for antenna selection, and the set of reference signal resources includes at least one the N groups of reference signal resources; or receive, at the end device, at least a part of first information, where each part of first information is used to indicate whether the reference signals to be transmitted in all the reference signal resources in a set of reference signal resources are to be sent in an antenna switching manner or if reference signals are used to measure a channel for antenna selection, and the set of reference signal resources includes at least one of the N groups of reference signal resources ; or receive, by the terminal device, a part of first information,
[0017] [0017] In other words, the network device can indicate, to the terminal device through the use of one or more pieces of information based on different granularities (for example, a reference signal resource, a set of information resources) reference signal or the terminal device), if a reference signal to be transmitted in a reference signal resource is to be sent in an antenna switching manner, so that the terminal device performs the antenna switching based on the network device configuration.
[0018] [0018] With reference to the first aspect, in some implementations of the first aspect, a time interval between at least two of the N groups of reference signal resources is greater than or equal to Y units of second type time, where Y is an integer greater than or equal to 0.
[0019] [0019] Y can be understood as a quantized value of a guard period between groups of resources. In this embodiment of this request, a time interval between two groups of reference signal resources is specified, in order to avoid a problem that the signal quality of some symbols may deteriorate due to a very short time domain distance between different signals . Therefore, the quality of signal reception is improved, and performance of the terminal device is improved.
[0020] [0020] Optionally, a time interval between any two of the N reference signal resource groups is greater than or equal to Y units of second type time.
[0021] [0021] Optionally, the second type of time unit is a symbol, and a time interval between any two of the N reference signal resources is greater than or equal to Y symbols.
[0022] [0022] With reference to the first aspect, in some implementations of the first aspect, a value range of Y is determined based on at least one of the following: a carrier frequency of a frequency domain resource used by the terminal device to send a reference signal and subcarrier spacing used by the terminal device to send a reference signal.
[0023] [0023] In other words, the Y value range can be predefined, for example, the Y value range is defined by a protocol. In addition, a value of Y can be determined based on frequency bands of bandwidth part (BWP) of different terminal devices and frequency bands of different component carriers (component carrier, CC).
[0024] [0024] Optionally, a value of Y is determined based on a subcarrier spacing that is used by the terminal device to send a reference signal.
[0025] [0025] Optionally, when the subcarrier spacing is one of 15 kilohertz kHz, 30 kHz, or 60 kHz, the value of Y is 1, and / or when the subcarrier spacing is 120 kHz, the value of Y is 2.
[0026] [0026] With reference to the first aspect, in some implementations of the first aspect, the method additionally includes: sending, through the terminal device, third information, where the third information carries a reference value of a time interval required by the terminal device, or the first information carries a minimum value of a time interval required by the terminal device.
[0027] [0027] The time interval required by the terminal device can also be understood as a guard period. In this embodiment of this request, the terminal device reports the reference value or the minimum value of the time interval required for the network device, so that a guard period configured by the network device for the terminal device is more suitable for the device terminal, and signal quality is improved.
[0028] [0028] With reference to the first aspect, in some implementations of the first aspect, the method additionally includes: receiving, through the terminal device, fourth information, where the fourth information bears the value of Y.
[0029] [0029] The value of Y is indicated for the terminal device, so that when performing the rate match or sending a PDCCH, the terminal device can perform the resource mapping based on a guard period, in order to avoid a problem that the signal quality of some symbols may deteriorate due to a very short time domain distance between resources. Therefore, the quality of signal reception is improved, and performance of the terminal device is improved.
[0030] [0030] According to a second aspect, a method of receiving a signal is provided, including: sending, by a network device, at least a part of resource configuration information, where at least a part of configuration information of resource is used to determine N groups of reference signal resources, and each of the N groups of reference signal resources includes at least one reference signal resource; and receiving, by the network device, a reference signal from a tenth group of antennas in a resource in a tenth group of reference signal resources in the N groups of reference signal resources, where the tenth group of antennas includes at least one antenna, where at least two of the N groups of reference signal resources occupy different time units of the first type, the N groups of reference signal resources correspond to the N groups of antennas and at least two among the N antenna groups are different, where 1≤i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to 2.
[0031] [0031] Therefore, a terminal device in this mode of this request can determine a corresponding antenna group based on a reference signal resource group, send a reference signal in the reference signal resource group based on the antenna group , and flexibly perform antenna switching based on a match between a plurality of groups of reference signal resources and a plurality of groups of antennas. In comparison with the state of the art, antenna switching can be decoupled from a transmission period, and this mode is applicable to the transmission of the reference signal in several possible ways, thereby improving the performance of the terminal device.
[0032] [0032] Optionally, the N groups of reference signal resources are in one-to-one correspondence with the N groups of antennas.
[0033] [0033] In one embodiment, the network device sends at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine N reference signal resources; and the network device receives a reference signal from a tenth group of antennas in a tenth reference signal resource in the N reference signal resources, where the tenth group of antennas includes at least one antenna. At least two of the N reference signal resources occupy different time units of the first type, the N reference signal resources correspond to the N antenna groups and at least two of the N antenna groups are different, where 1≤ i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to 2.
[0034] [0034] With reference to the second aspect, in some implementations of the second aspect, the method additionally includes: sending, by the network device, at least a part of antenna configuration information, where the antenna configuration information is used to indicate a correspondence between the N groups of antennas and the N groups of reference signal resources.
[0035] [0035] In other words, the correspondence between the N groups of reference signal resources and the N groups of antennas can be configured by the network device, and is notified to the terminal device through the use of signaling, so that the terminal device determines the j th group of antennas corresponding to the j th group of reference signal resources.
[0036] [0036] With reference to the second aspect, in some implementations of the second aspect, the method additionally includes: sending, by the network device, a plurality of parts of the first information, where each part of the first information is used to indicate if a signal of reference in a reference signal resource is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection; or send, through the network device, at least a piece of first information, where each piece of first information is used to indicate whether a reference signal to be transmitted in the reference signal resource in a set of reference signal resources to the which a reference signal resource belongs to is sent in an antenna switching manner or whether the reference signal is used to measure a channel for antenna selection, and the set of reference signal resources includes at least one of the N groups of reference signal resources; or send, through the network device, at least a piece of first information, where each piece of first information is used to indicate whether the reference signals to be transmitted in all the reference signal resources in a set of signal resources. reference signals are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection, and the reference signal feature set includes at least one of the N signal signal feature groups. reference; or send, through the network device, a piece of first information, where the first information is used to indicate whether all the reference signals from the terminal device are to be sent in an antenna switching manner or whether all the reference signals are used to measure a channel for antenna selection.
[0037] [0037] In other words, the network device can indicate, to the terminal device through the use of one or more pieces of information based on different granularities (for example, a reference signal resource, a set of information resources) reference signal or the terminal device), if a reference signal to be transmitted in a reference signal resource is to be sent in an antenna switching manner, so that the terminal device performs the antenna switching based on the network device configuration.
[0038] [0038] With reference to the second aspect, in some implementations of the second aspect, a time interval between at least two of the N reference signal resource groups is greater than or equal to Y units of second type time, where Y is an integer greater than or equal to 0.
[0039] [0039] Y can be understood as a quantized value of a guard period between groups of resources. In this embodiment of this request, a time interval between two groups of reference signal resources is specified, in order to avoid a problem that the signal quality of some symbols may deteriorate due to a shorter time domain distance between different signals . Therefore, signal reception quality is improved, and the performance of the terminal device is improved.
[0040] [0040] Optionally, a time interval between any two of the N reference signal resource groups is greater than or equal to Y units of second type time.
[0041] [0041] Optionally, the second type time unit is a symbol, and a time interval between any two of the N reference signal resources is greater than or equal to Y symbols.
[0042] [0042] With reference to the second aspect, in some implementations of the second aspect, a value range of Y is determined based on at least one of the following: a carrier frequency of a frequency domain resource used by the terminal device to send a reference signal and a subcarrier spacing used by the terminal device to send a reference signal.
[0043] [0043] In other words, the Y value range can be predefined, for example, the Y value range is defined by a protocol. In addition, a value of Y can be determined based on frequency bands of BWPs from different terminal devices and frequency bands from different CCs.
[0044] [0044] Optionally, a value of Y is determined based on a subcarrier spacing that is used by the terminal device to send a reference signal.
[0045] [0045] Optionally, when the subcarrier spacing is one of 15 kilohertz kHz, 30 kHz or 60 kHz, the value of Y is 1, and / or when the subcarrier spacing is 120 kHz, the value of Y is 2.
[0046] [0046] With reference to the second aspect, in some implementations of the second aspect, the method additionally includes: receiving, through the network device, third information, where the third information carries a reference value of a time interval required by the terminal device, or the third information carries a minimum value of a time interval required by the terminal device.
[0047] [0047] The time interval required by the terminal device can also be understood as a guard period. In this embodiment of this request, the terminal device reports the reference value or the minimum value of the time interval required for the network device, so that a guard period configured by the network device for the terminal device is more suitable for the device terminal, and signal quality is improved.
[0048] [0048] With reference to the second aspect, in some implementations of the second aspect, the method additionally includes: sending, by the network device, fourth information, where the fourth information bears the value of Y.
[0049] [0049] The value of Y is indicated for the terminal device, so that when performing the rate match or sending a PDCCH, the terminal device can perform the resource mapping based on a guard period, in order to avoid a problem that the signal quality of some symbols may deteriorate due to a very short time domain distance between resources. Therefore, the quality of signal reception is improved, and performance of the terminal device is improved.
[0050] [0050] According to a third aspect, a signal sending method is provided, including: receiving, by a terminal device, fifth information, where the resource programming information indicates a first resource used to send a first signal or a first channel and a second resource used to send a second signal or a second channel; and if a time interval between the first resource and the second resource in the time domain is less than Z second type time units and an antenna part in a first antenna group corresponding to the first resource and an antenna part in one second group of antennas corresponding to the second resource cannot be used for simultaneous transmission, send, by the terminal device, the first signal or the first channel in the first resource through the use of the first group of antennas corresponding to the first resource, where a priority of first signal or first channel is greater than a priority of the second signal or second channel, where Y ≥ 0.
[0051] [0051] Therefore, when the terminal device transmits a signal or a channel through the use of different groups of antennas, it can be guaranteed that a time interval between different resources is greater than or equal to (or greater than) a length of a guard period, thereby guaranteeing the quality of signal reception and improving the performance of the terminal device.
[0052] [0052] In this modality of this request, the terminal device can process the second signal or the second channel using any of the following methods:
[0053] [0053] Way A: If at least some antennas in the second antenna group and any of the antennas in the first antenna group can be used for simultaneous transmission, the terminal device sends the second signal or the second channel on the second resource via the use of at least some antennas in the second group of antennas.
[0054] [0054] Way B: The terminal device sends the second signal or the second channel in the second resource through the use of at least some antennas in the first group of antennas.
[0055] [0055] Way C: If all the antennas in the second group of antennas and any of the antennas in the first group of antennas cannot be used for simultaneous transmission, the terminal device does not send the second signal or the second channel on the second resource.
[0056] [0056] According to a fourth aspect, a signal sending apparatus is provided, including a receiving unit and a sending unit, to carry out the method in the first aspect or the third aspect and any possible implementation of the first aspect or the third aspect. The receiving unit is configured to perform a function related to receiving, and the sending unit is configured to perform a function related to sending.
[0057] [0057] According to a fifth aspect, a signal sending device is provided, including a processor, a memory and a transceiver. The memory is configured to store a computer program, and the processor is configured to invoke the computer program from memory and run the computer program, to control the transceiver to send / receive a signal, so that the device performs the method in the first aspect or in the third aspect and in any possible implementation of the first aspect or the third aspect.
[0058] [0058] In a possible project, the signal sending device can be a terminal device.
[0059] [0059] According to a sixth aspect, a signal receiving apparatus is provided, including a sending unit and a receiving unit, to carry out the method in the second aspect or any possible implementation of the second aspect. The sending unit is configured to perform a function related to sending, and the receiving unit is configured to perform a function related to receiving.
[0060] [0060] According to a seventh aspect, a signal receiving device is provided, including a processor, a memory and a transceiver. The memory is configured to store a computer program, and the processor is configured to invoke the computer program from memory and run the computer program, to control the transceiver to send / receive a signal, so that the device performs the method in the second aspect or in any possible implementation of the second aspect.
[0061] [0061] In a possible project, the signal receiving device can be a network device.
[0062] [0062] According to an eighth aspect, a system is provided, and the system includes the signal sending apparatus in the fourth aspect and the signal receiving apparatus in the sixth aspect, or includes the signal sending apparatus in the fifth aspect and the signal receiving apparatus in the seventh aspect.
[0063] [0063] According to a ninth aspect, a computer-readable storage medium is provided and is configured to store a computer program. The computer program includes an instruction used to carry out the method in the previous aspects or in any possible implementation of the previous aspects.
[0064] [0064] According to a tenth aspect, a computer program product is provided, and the computer program product includes the computer program code. When the computer program code is executed on a computer, the computer performs the method in the previous aspects or in any possible implementation of the previous aspects.
[0065] [0065] According to an eleventh aspect, a chip system is provided, and the chip system includes a processor, configured to support a network device in implementing functions in the previous aspects, for example, generating, receiving, sending or process data and / or information in the previous methods. In a possible design, the chip system additionally includes a memory, and the memory is configured to store a program instruction and data that are needed for a terminal device. The chip system can include a chip, or it can include a chip and another discrete device. BRIEF DESCRIPTION OF THE DRAWINGS
[0066] [0066] FIG. 1 is a schematic diagram of a communications system to which a method of communication in an embodiment of this request is applicable;
[0067] [0067] FIG. 2 is a schematic flowchart of a method of sending and receiving a signal, according to an embodiment of this request;
[0068] [0068] FIG. 3 is a schematic flow chart of a method of sending and receiving a signal, according to another modality of this order;
[0069] [0069] FIG. 4 is a schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0070] [0070] FIG. 5 is another schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0071] [0071] FIG. 6 is yet another schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0072] [0072] FIG. 7 is yet another schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0073] [0073] FIG. 8 is yet another schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0074] [0074] FIG. 9 is yet another schematic diagram in which a terminal device sends a first signal or a first channel and a second signal or a second channel;
[0075] [0075] FIG. 10 is a schematic flowchart of a method of sending and receiving a signal, in accordance with yet another modality of this order;
[0076] [0076] FIG. 11 is a schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0077] [0077] FIG. 12 is another schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0078] [0078] FIG. 13 is yet another schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0079] [0079] FIG. 14 is yet another schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0080] [0080] FIG. 15 is yet another schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0081] [0081] FIG. 16 is yet another schematic diagram in which a terminal device receives a third signal or a third channel and a fourth signal or fourth channel;
[0082] [0082] FIG. 17 is a schematic block diagram of a signal sending apparatus, according to an embodiment of this application;
[0083] [0083] FIG. 18 is a schematic block diagram of a signal receiving apparatus, according to an embodiment of this request;
[0084] [0084] FIG. 19 is a schematic structural diagram of a terminal device, according to an embodiment of this application; and
[0085] [0085] FIG. 20 is a schematic structural diagram of a network device, according to an embodiment of this application. DESCRIPTION OF THE MODALITIES
[0086] [0086] The technical solutions in this application are described below with reference to the attached drawings.
[0087] [0087] The technical solutions in the modalities of this application can be applied to several communications systems, such as a global system for mobile communications (Global System for Mobile Communications, GSM), a multiple division system by code division (Code Division Multiple Access, CDMA), a broadband code division multiple access system (Wideband Code Division Multiple Access, WCDMA), a general packet radio service (General Packet Radio Service, GPRS), a long-term evolution system (Long Term Evolution, LTE) system, a frequency division duplexing system (Frequency Division Duplex, FDD) LTE, a time division duplexing system (Time Division Duplex, TDD) LTE, a universal mobile telecommunications system ( Universal Mobile Telecommunications System, UMTS), a worldwide interoperability for a microwave access communications system (Worldwide Interoperability for Microwave Access, WiMAX), a future communication system the 5th generation (5th Generation, 5G) or a new radio access technology system (new radio access technology, NR).
[0088] [0088] To facilitate the understanding of the modalities of this application, a communication system to which the modalities of this application are applicable is first described in detail with reference to FIG. 1. FIG. 1 is a schematic diagram of a communications system 100 to which a method of receiving and transmitting a reference signal in one embodiment of this order is applicable. As shown in FIG. 1, communications system 100 may include network device 102 and terminal devices 104 to
[0089] [0089] It should be understood that the network device 102 can be any device having a wireless send / receive function or a chip that can be disposed in the device. The device includes but is not limited to a base station (for example, a base station B node, an evolved eNodeB B node, a network device in a fifth generation (5G) communications system (such as a point transmission point (TP), a transmission reception point (transmission reception point, TRP), a base station or a small cell device), a network device in a future communications system, an access node in a wireless fidelity system (Wireless Fidelity, Wi-Fi), a wireless relay node, a wireless return node and the like.
[0090] [0090] The network device 102 can communicate with a plurality of terminal devices (for example, the terminal devices 104 to 114 shown in the figure).
[0091] [0091] It should be understood that the terminal device can also be referred to as user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile console, a station remote, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communications device, a user agent or a user device. The terminal device in the modalities of this application can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless send / receive function, a virtual reality terminal device (Virtual Reality, VR), a augmented reality terminal device (Augmented Reality, AR), a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medicine (remote medical), a terminal without wire in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home or similar . An application scenario is not limited in the modalities of this request. In this application, the front end device and the chip that can be arranged on the front end device are collectively referred to as a end device.
[0092] [0092] In addition, communications system 100 may alternatively be a public land mobile network (PLMN), a device-to-device network, device-to-device, D2D, a machine-to-machine network (machine-to-machine, M2M) or another network. FIG. 1 is just a simplified schematic diagram of an example for ease of understanding, and communications system 100 may additionally include another network device and another terminal device that are not shown in FIG. 1.
[0093] [0093] To facilitate the understanding of the modalities of this request, the following uses downlink data transmission as an example to briefly describe a data transmission process through the use of MIMO technology.
[0094] [0094] The network device can determine a pre-coding matrix based on CSI pre-obtained from a downlink channel, perform pre-coding on data to be sent and a demodulation reference signal to be sent ( for example, a DMRS), and send the data and a demodulation reference signal that are obtained after pre-
[0095] [0095] In some systems characterized by “uplink and downlink channel reciprocity”, such as a WiMAX system or an LTE-TDD system, and a possible future system characterized by “channel reciprocity”, the network device can estimate CSI of a downlink channel using CSI obtained by measuring an uplink channel. Specifically, the network device can measure the uplink channel based on an uplink reference signal (for example, an SRS) sent by the terminal device, to obtain the UCI of the uplink channel, and further estimate the CSI of the downlink channel based on the CSI of the uplink channel, for example, including a precoding matrix indicator (PMI), a ranking indicator (RI) and a quality indicator (Channel Quality Indicator, CQI).
[0096] [0096] In this report, it should be noted that in a system with “channel reciprocity”, an uplink channel and a downlink channel occupy the same frequency band. Therefore, it can be considered that the uplink channel and the downlink channel are similar, in other words, reciprocal.
[0097] [0097] With the development of a technology of multiple antennas, a plurality of transmit antennas and a plurality of before receiving can be configured for the network device and the terminal device. A number of transmit antennas configured for some terminal devices may be less than a number of before receiving, for example, 1T2R (ie, one transmitting antenna and two receiving antennas), 2T4R (ie, two transmitting antennas) and four receiving antennas), or aTbR (a <b). It can be understood that in an example of 1T2R, the terminal device can simultaneously transmit an uplink signal / channel through the use of only one antenna and can simultaneously receive the downlink signal / channel through the use of two antennas. Therefore, when CSI of a downlink channel needs to be obtained through the use of channel reciprocity, the terminal device may need to send an SRS / SRSs through the use of different antennas at different times. This way can be referred to as antenna switching or antenna selection.
[0098] [0098] In another possible case, when measuring the uplink channels, the terminal device needs to research the number of transmission antennas configured to obtain CSI of each channel, in order to select the antennas in a good channel state that can be used for simultaneous transmission to carry out uplink transmission. However, if the number of transmit antennas configured for the terminal device is greater than the number of antennas that can be used for simultaneous transmission, the terminal device must send an SRS or other signal in an antenna switching manner.
[0099] [0099] In LTE, the terminal device can determine an a (nSRS) antenna identifier (for example, denoted as) of an antenna to nSRS be switched based on a count (for example, denoted as) corresponding to each opportunity transmission of an SRS, for example, a (nSRS) = nSRS mod 2. The transmission opportunity can be determined based on an SRS transmission period. Therefore, an antenna to be switched for each antenna switching time is related to a transmission period. In some cases, this method may have some limitations. For example, if the SRS transmission is not based on a transmission period, for example, it is an aperiodic transmission, an antenna identifier of an antenna to be switched cannot be calculated using this method and therefore the switching of antenna cannot be supported, thereby limiting the performance of the terminal device.
[0100] [0100] In view of the above, this request provides a method of sending and receiving the signal, so that antenna switching is decoupled from a transmission period, and the performance of a terminal device is improved.
[0101] [0101] Before the modalities of this request are described, several concepts related in NR are first described briefly.
[0102] [0102] Antenna: An antenna can be a physical antenna or a virtual antenna, that is, the physical antenna can be a group of physical antennas or an antenna panel, or the virtual antenna can be an antenna port, an user or a virtual port.
[0103] [0103] Part of bandwidth (BWP): In some communications systems, such as an NR 5G system, the transmission or reception capacities of different terminal devices in the same cell may be different. The system can configure the corresponding bandwidth for each terminal device. This portion of the bandwidth configured for the terminal device is referred to as a BWP, and the terminal device performs transmission on the BWP of the terminal device. For example, the terminal device transmits an SRS in the BWP of the terminal device, so that a network device performs channel measurement and resource programming, and the terminal device transmits data in the BWP of the terminal device based on programming by network device. The system can configure different BWPs for different end devices. To support different services, different BWPs can support different transmission bandwidths (ie, BWPs include different amounts of RBs), different subcarrier spacing, different cyclic prefixes (cyclic prefix, CP) and the like, and a programming unit it can be a range, a mini range or the like.
[0104] [0104] Interval (slot): Because the frame structures in different BWPs can be different, the intervals are also defined differently. In NR, an interval is a minimum programming unit. A range of a range format includes 14 orthogonal frequency division multiplexing symbols (OFDM), and a CP of each OFDM symbol is a normal CP; a range of another range format includes 12 OFDM symbols, and a CP of each OFDM symbol is an extended CP; a range of another format includes seven OFDM symbols, and a CP of each OFDM symbol is a normal CP. All OFDM symbols in a range can be used for uplink transmission, or can be used for downlink transmission. Alternatively, some OFDM symbols in a range can be used for downlink transmission, some OFDM symbols are used for uplink transmission, and some OFDM symbols are not reserved for transmission. It should be understood that the preceding illustration is merely an example for the description, and should not be construed as limiting this application. Considering the forwarding compatibility of the system, a gap format of a gap is not limited to the previous examples.
[0105] [0105] Symbol (symbol): A symbol's time length is not limited in the modalities of this request. A symbol length can vary for different subcarrier spacing. The symbols can include an uplink symbol and a downlink symbol. The uplink symbol can be referred to as a single carrier frequency division multiple access symbol (Single Carrier Frequency Division Multiple Access, SC-FDMA) or an orthogonal frequency division multiplexing symbol (Orthogonal Frequency Division Multiplexing, OFDM). The downlink symbol can be referred to as an OFDM symbol. It should be understood that the preceding symbol can also correspond to another way of multiple access of uplink or another way of multiple access of downlink. This is not specifically limited in the modalities of this application.
[0106] [0106] Sub carrier spacing: A size of a sub carrier spacing is not limited in the modalities of this order. For example, a subcarrier spacing can be 15 kHz, 30 kHz, 60 kHz, 120 kHz, 240 kHz or 480 kHz. A subcarrier spacing and symbol length can match the following formula: Subcarrier spacing ratio = 1 / symbol length. For example, the symbol length, in this report, can be a length of a symbol that does not include a CP, or a length of each symbol that includes a CP except a first half-frame symbol.
[0107] [0107] The details of this application are described in detail below, with reference to the attached drawings.
[0108] [0108] It should be understood that the technical solutions in this application can be applied to a wireless communications system, for example, the communications system 100 shown in FIG. 1. The communications system can include at least one network device and at least one terminal device, and the network device and the terminal device can communicate through an air radio interface. For example, the network device in the communications system may correspond to the network device 102 shown in FIG. 1, and the end device may correspond to the end devices 104 to 114 shown in FIG. 1.
[0109] [0109] It should also be understood that in the modalities of this request, just for ease of understanding, an SRS is used as an example to describe the technical solutions. However, this should not be a limitation in this order. The method provided in the modalities of this application is not only applicable to SRS transmission, but also applicable to another transmission of a reference signal used for channel measurement. In addition, the reference signal used for channel measurement is also not limited in this order. The reference signal can be a DMRS or a PTRS, or it can be another reference signal recently defined in a future protocol and used to implement an equal or similar function.
[0110] [0110] Generally, the following is a process of interaction between a terminal device and a network device as an example to describe the modalities of this request in detail. The terminal device can be any terminal device that is in the wireless communications system and that has a wireless connection to the network device. It can be understood that the network device and a plurality of terminal devices that are in the wireless communications system and that have a wireless connection relationship can transmit a reference signal based on the same technical solution. This is not limited in this order.
[0111] [0111] FIG. 2 is a schematic flowchart of a method for receiving and transmitting the reference signal 200, according to one embodiment of this request from a perspective of interaction between devices. As shown in FIG. 2, method 200 can include step 210 to step 270.
[0112] [0112] In step 210, a network device sends at least a portion of resource configuration information, where at least a portion of resource configuration information can be used to determine N groups of SRS resources.
[0113] [0113] Correspondingly, in step 210, a terminal device receives at least a portion of resource configuration information, where at least a portion of resource configuration information can be used to determine the N SRS resource groups.
[0114] [0114] N can be an integer greater than or equal to 2. Each of the N SRS resource groups can include at least one reference signal. An SRS resource can be understood as a resource used to transmit a reference signal. As an example, instead of a limitation, the SRS resource can include at least one of the following: a frequency domain resource, a time domain resource, a code domain resource and an antenna port, and the code domain resource can include at least one of the following: a sequence, a cyclical shift (cycling shift) and an orthogonal cover code (Orthogonal Cover Code, OCC).
[0115] [0115] The time frequency resources of at least two of the N SRS resource groups are different. In other words, at least two SRS resource groups do not overlap in the time domain, or at least two SRS resource groups occupy different time units. To facilitate the distinction from a unit of time below, the unit of time is denoted as a unit of time of the first type. It should be noted that the first type of time unit can be understood as a minimum granularity to divide an SRS resource in the time domain. In this embodiment of this request, the first type of time unit can be a symbol, a slot, a mini-interval, a subframe or a radio frame, or it can be a plurality of symbols, or it can even be a part of a symbol, such as 1/2 symbol or 1/4 symbol, or it can be a predefined length of time or the like. A symbol length is related to a sub carrier spacing of a component carrier (component carrier, CC, or referred to as a component carrier, a component carrier or the like) used by the terminal device to send a signal.
[0116] [0116] In a possible project, the time domain resources of any two of the N SRS resource groups are different. In other words, at least two SRS resource groups do not overlap in the time domain, or any two SRS resource groups occupy different first type time units.
[0117] [0117] In this modality of this request, it can be a correspondence between the N groups of SRS resources and N groups of antennas. For example, if the N groups of SRS resources are in a one-to-one correspondence with the N groups of antennas, a seventh group of SRS resources (where i is any integer in [1, N]) in the N groups of SRS resources corresponds to a tenth antenna group (where j is any integer in [1, N]) in the N antenna groups.
[0118] [0118] In addition, each of the N antenna groups can include at least one antenna. At least two of the N antenna groups are different. Specifically, at least two of the N antenna groups are totally different or not quite the same. For example, an antenna group # 0 can include an antenna # 0 and an antenna # 1, and an antenna group # 1 can include antenna # 1 and an antenna # 2; or an antenna group # 0 may include an antenna # 0 and an antenna # 1, and an antenna group # 1 may include an antenna # 2 and an antenna # 3.
[0119] [0119] In a possible project, any two of the N antenna groups include different antennas.
[0120] [0120] Optionally, when an SRS resource group includes a plurality of SRS resources, at least one SRS resource or all SRS resources in the SRS resource group correspond to the different transmission beams, or have irrelevant signal port characteristics. reference.
[0121] [0121] Optionally, when an SRS resource group includes a plurality of SRS resources, at least one SRS resource or all SRS resources in the SRS resource group correspond to the same transmission beam, or have relevant signal port characteristics of reference.
[0122] [0122] It should be noted that the irrelevant characteristics of the reference signal port can be understood that the reference signal ports do not have an almost colocalized relationship (quasi co-located, QCL) or a QCL spatial relationship. The relevant characteristics of the reference signal port can be understood that the reference signal ports have a QCL relationship or a QCL spatial relationship.
[0123] [0123] In this report, the QCL spatial relationship can also be understood as a QCL relationship. In this modality of this request, the spatial relation QCL means that the signals corresponding to the signal antenna ports have the same parameter; or the QCL spatial relationship means that the terminal can determine, based on an antenna port parameter,
[0124] [0124] The signals transmitted on ports having a QCL spatial relationship can also be understood as having a corresponding beam, where the corresponding beam includes at least one of the following: the same receiving beam, the same transmission beam, a beam of transmission corresponding to a receiving beam (corresponding to a reciprocity scenario) and a receiving beam corresponding to a transmission beam (corresponding to a reciprocity scenario).
[0125] [0125] The signals transmitted on ports having a QCL spatial relation can also be understood as signals received or sent through the use of the same spatial filter. The spatial filter can be at least one of the following: a precoder, a weight of an antenna port, phase deflection of an antenna port and an amplitude gain of an antenna port.
[0126] [0126] The signals transmitted on ports having a QCL spatial relationship can also be understood as having a link of the corresponding beam pair (beam pair link, BPL), where the corresponding BPL includes at least one of the following: the same BPL of downlink, same Uplink BPL, uplink BPL corresponding to a downlink BPL and a downlink BPL corresponding to an uplink BPL.
[0127] [0127] Optionally, at least a part of the resource configuration information is carried in upper layer signaling.
[0128] [0128] For example, upper layer signaling may include a radio resource control message (radio resource control, RRC) and a media access control element (control element, CE) MAC).
[0129] [0129] It should be understood that the upper layer signaling listed above is merely an example for the description and should not constitute any limitation in this application. The upper layer signaling may additionally include another upper layer signaling. For brevity, no enumeration is provided in this report. For brevity, the related descriptions of the upper layer signaling are omitted when the upper layer signaling is involved below.
[0130] [0130] In step 220, the terminal device sends a reference signal on a resource in a nth group of SRS resources in the N groups of SRS resources through the use of a jean group of antennas corresponding to the nth group of SRS resources.
[0131] [0131] In this report, a “correspondence” between the seventh group of SRS resources and the tenth group of antennas can be understood as follows: The terminal device can send a reference signal on a resource in the seventh group of SRS resources through the use of the tenth group of antennas. It should be noted that if the seventh group of SRS resources includes a plurality of SRS resources, the terminal device can send a reference signal in the plurality of SRS resources through the use of the tenth group of antennas.
[0132] [0132] For example, the N SRS resource groups can include an SRS # 0 resource group and an SRS # 1 resource group, and the N antenna groups can include the previous # 0 antenna group and the antenna group Previous # 1. SRS resource group # 0 can be matched to antenna group # 0, SRS resource group # 1 can be matched to antenna group # 1, and SRS resource group # 0 and SRS resource group # 1 do not overlap in the time domain. In this case, the terminal device can send a reference signal on at least a portion of resources in the SRS # 0 resource group through the use of antenna group # 0, and the terminal device can send a reference signal on at least a portion of resources in the SRS resource group # 1 through the use of antenna group # 1. It should be understood that in this report, to facilitate the distinction between different groups of SRS resources and the distinction only between different groups of antennas, the different groups of SRS resources and the different groups of antennas are identified separately using different numbers. However, this should not be a limitation in this order. When the network device sends resource configuration information to the terminal device, the network device cannot define a number for each SRS resource group, and the terminal device does not define a number for each SRS resource group.
[0133] [0133] In fact, in this application, just for ease of understanding and description, one or more SRS resources are referred to as a group of SRS resources, and one or more antennas are referred to as a group of antennas. However, this should not be a limitation in this order. In this application, one or more SRS resources may correspond to one or more antennas, or one or more reference signal resources may correspond to a group of antennas, or a group of reference signal resources may correspond to one or more more antennas. Although the plurality of SRS resources is not referred to as a group of SRS resources or the plurality of antennas is not referred to as a group of antennas in these cases, when a match between a resource and an antenna is being determined, the plurality of SRS resources is essentially considered as a group of SRS resources or the plurality of antennas is essentially considered as a group of antennas. This makes no difference in essence and, therefore, must be within the scope of protection of this order. For example, the network device configures the M × N SRS resources and N antennas. All M duplicate SRS resources can be matched to an antenna. Essentially, all M SRS resources are considered to be an SRS resource group. A correspondence between each M SRS resource and the N antennas is established. For another example, the network device configures 2M reference signal capabilities and 2N antennas. All M non-duplicated SRS resources can be matched to L antennas. Essentially, all M reference signal resources are considered as a group of reference signal resources, and all L antennas are considered as a group of antennas. A correspondence between all M reference signal resources and all L antennas can be established, for example, M = 1 or M> 1, and L = 1 or L = 2 or L> 2.
[0134] [0134] It should be noted that in this modality of this application, if the antenna quantities in antenna groups corresponding to all reference signal resource groups are the same, they are not limited,
[0135] [0135] It should also be noted that in this order, just for ease of understanding and description, a specific process of sending and receiving a reference signal is described by using a reference signal transmission time as an example. However, this should not be a limitation in this order. Optionally, the number of times the terminal device sends a reference signal can be determined based on any one of the following: a ratio of a number of downlink antennas to a number of uplink antennas, and a ratio of number of uplink antennas for a number of uplink antennas that can be used for simultaneous transmission. For example, for a terminal device whose antenna configuration is aTbR, since the antenna switching can be completed through the a / b times for the transmission of the reference signal, where a and b are positive integers. When a / b is not an integer, rounding up, rounding down, or rounding can be performed. This is not limited in this order.
[0136] [0136] Optionally, at least a portion of the resource configuration information includes only a portion of the resource configuration information, and the resource configuration information can be used to determine the N SRS resource groups.
[0137] [0137] Optionally, at least a part of resource configuration information includes a plurality of parts of resource configuration information, and each part of resource configuration information is used to determine one of the N SRS resource groups.
[0138] [0138] That is, the network device can send related resource configuration information from the N SRS resource groups to the terminal device using a portion of resource configuration information, or the network device can send information resource configuration settings for each reference signal resource in the N SRS resource groups for the end device.
[0139] [0139] Optionally, before step 220, method 200 additionally includes:
[0140] [0140] Step 230: The terminal device determines the tenth group of antennas corresponding to the seventh group of SRS resources.
[0141] [0141] It should be noted that, as described in detail above, a correspondence between an SRS resource group and an antenna group and a correspondence between an SRS resource and an antenna are essentially the same. Therefore, determining a match between an SRS resource group and a group of antennas can essentially be understood as determining a match between an SRS resource and an antenna, or a match between an SRS resource group and an antenna, or a match between a SRS feature and a group of antennas.
[0142] [0142] In this modality of this request, the terminal device can determine, in any of the following ways, the tenth group of antennas corresponding to the seventh group of SRS resources:
[0143] [0143] Way 1: The terminal device can determine, according to a predefined rule, the tenth group of antennas corresponding to the seventh group of SRS resources.
[0144] [0144] Way 2: The terminal device can receive antenna configuration information sent by the network device, to determine, based on the antenna configuration information, the tenth group of antennas corresponding to the seventh SRS resource group.
[0145] [0145] Way 1 and Way 2 are described separately in detail below.
[0146] [0146] Way 1
[0147] [0147] Optionally, step 230 specifically includes:
[0148] [0148] Step 2301: The terminal device determines, according to a predefined rule, the tenth antenna group corresponding to the seventh SRS resource group.
[0149] [0149] Specifically, the network device and the terminal device can determine, according to the predefined rule, the tenth antenna group corresponding to the seventh SRS resource group. Optionally, the network device and the terminal device can determine, based on an antenna identifier and a reference signal resource identifier, the tenth group of antennas corresponding to the seventh SRS resource group.
[0150] [0150] For example, the N SRS resource groups include an SRS # 0 resource and an SRS # 1 resource, and the SRS resource identifiers are {0, 1}; the N antenna groups include an antenna # 0 and an antenna # 1, and the antenna identifiers are {0, 1}. Assuming that the th SRS resource group includes an SRS resource whose resource identifier is "0", a correspondence can be established between an SRS resource corresponding to a lower resource identifier value and an antenna corresponding to a lower resource identifier value. antenna, that is, it can be determined that an antenna identifier included in the tenth antenna group corresponding to the SRS resource group is 0.
[0151] [0151] Additionally, step 2301 may include: the terminal device determines a one-to-one correspondence between the N groups of SRS resources and the N groups of antennas, according to the predefined rule; and the terminal device determines, based on the one-to-one correspondence between the N groups of SRS resources and the N groups of antennas, the tenth group of antennas corresponding to the nth group of reference signal resources.
[0152] [0152] Specifically, the network device and the terminal device can determine a one-to-one correspondence between the N groups of reference signal resources and the N groups of antennas, according to the predefined rule. Optionally, the network device and the terminal device can determine the one-to-one correspondence between the N groups of reference signal resources and the N groups of antennas based on an antenna identifier and a resource identifier reference signal.
[0153] [0153] In a possible project, one-to-one correspondence between the N groups of SRS resources and the N groups of antennas can be established in ascending order of ascending identifiers of SRS resource identifiers.
[0154] [0154] Table 1, Table 2, Table 3 and Table 4 below, separately provide possible correspondences between SRS resource identifiers (SRS Resource Indicator, SRI) and antenna group identifiers for different antenna configurations (1T2R, 2T4R , and 1Q4R). In the correspondences shown in Table 1 to Table 4 below, {SRI0, SRI1, SRI2,
[0155] [0155] As shown in Table 1, one-to-one correspondence between the N resource groups and the N antenna groups can be established based on an antenna identifier or an antenna group identifier, and an identifier SRS resource. For example, a one-to-one correspondence between SRI0 and antenna group # 1 and a one-to-one correspondence between SRI0 and 1T2R # 0 antenna or 2T4R # 0 and # 1 antennas is established separately. When an SRS feature is used, a corresponding antenna group or antenna can be determined. Table 1 SRS resource identifier identifier identifier antenna group antenna 1T2R antenna 2T4R SRI0 0 {0} {0, 1} SRI1 1 {1} {2, 3}
[0156] [0156] It should be understood that Table 1 is merely a possible project, and a correspondence between an SRS resource and a group of antennas or an antenna in Table 1 can be represented using Table 2 and Table 3. For example , a match between an SRS resource and an antenna can be determined based on an SRS resource identifier and an antenna group identifier and based on a one-to-one correspondence between an antenna group identifier and an identifier 1T2R antenna and in a one-to-one correspondence between an antenna group identifier and a 2T4R antenna identifier. Table 2 SRS resource identifier Antenna group identifier SRI0 0 SRI1 1 Table 3 Group identifier Antenna identifier Antenna antenna identifier 1T2R 2T4R 0 {0} {0, 1}
[0157] [0157] Table 4 shows a one-to-one correspondence between an SRS resource identifier and a 1T4R antenna identifier. Table 4 SRS resource identifier Antenna identifier 1T4R SRI0 {0} SRI1 {1} SRI2 {2} SRI3 {3}
[0158] [0158] It should be understood that the previously listed correspondence between an SRS resource identifier and an antenna identifier or an antenna group identifier is merely an example for the description, and should not be construed as limiting this request. For example, {SRI0, SRI1, SRI2, and SRI3} can also meet SRI0> SRI1> SRI2> SRI3. It should be further understood that indicating a correspondence between an SRS resource and an antenna or a group of antennas using a table is merely a possible implementation, and should not constitute any limitation in this request. An implementation of indicating a correspondence between an SRS resource and an antenna or group of antennas is not specifically limited in this order. For another example, the N SRS resource groups include an SRS resource # 0 and an SRS resource # 1, and the identifiers for the SRS resources are {0, 1}; the N antenna groups include an antenna # 0, an antenna # 1, an antenna # 2 and an antenna # 3, the antenna identifiers are {0, 1, 2, 3}. If antenna identifiers are mapped to SRS resource identifiers in ascending order, a match between an SRS resource whose SRS resource identifier is 0 and antenna identifiers {0, 1} and a match between an SRS resource whose identifier is SRS resource is 1 and antenna identifiers {2, 3} are obtained, that is, correspondences between two groups of SRS resources and two groups of antenna resources are obtained, where each group of SRS resources includes an SRS resource, and each antenna group includes two antennas.
[0159] [0159] For another example, the N SRS resource groups include an SRS # 0 resource, an SRS # 1 resource, an SRS # 2 resource, an SRS # 3 resource, an SRS # 4 resource, an SRS # 5 resource, an SRS resource # 6 and an SRS resource # 7, and the identifiers for the SRS resources are {0, 1, 2, 3, 4, 5, 6, 7}; the N antenna groups include an antenna # 0, an antenna # 1, an antenna # 2 and an antenna # 3, and the antenna identifiers are {0, 1, 2, 3}. If antenna identifiers are mapped to SRS resource identifiers in ascending order, a match between SRS resource identifiers {0, 1, 2, 3} and antenna identifiers {0, 1} and a match between identifiers of SRS resource {4, 5, 6, 7} and antenna identifiers {2, 3} are obtained, that is, correspondences between two groups of SRS resources and two groups of antennas are obtained. Each SRS feature group includes three SRS features, and each antenna group includes two antennas.
[0160] [0160] It should be understood that the previous rule is merely a possible implementation, and should not constitute any limitation in this request. For example, a match between an antenna and an SRS resource can alternatively be made in descending order of antenna identifiers and in ascending order of SRS resource numbers. Alternatively, a correspondence between an antenna and an SRS resource can alternatively be established in ascending order of antenna identifiers and in sequential order of time domain resources in SRS resources. Alternatively, a match can alternatively be made in decreasing order or in increasing order of antenna identifiers based on values obtained after a module operation is performed on groups of antennas using reference signal resource numbers. .
[0161] [0161] Optionally, an antenna identifier in the previous mode can alternatively be an antenna group identifier, and each antenna group includes one or more antennas. The antenna identifiers included can be consecutive or non-consecutive. For example, the antenna numbers in two antenna groups are {1, 2} and {2, 3} or are {0, 2} and {1, 4}. The antennas in an antenna group can be used for simultaneous transmission.
[0162] [0162] In some cases, the network device can configure an identifier for each group of SRS resources, and the terminal device can configure an identifier for each group of antennas. The terminal device can directly determine, based on an antenna group identifier and an SRS resource group identifier, the tenth antenna group corresponding to the SRS resource group.
[0163] [0163] The terminal device can determine, according to the predefined rule, the tenth group of antennas corresponding to the seventh group of SRS resources. For example, the tenth antenna group corresponding to the seventh SRS resource group is determined based on the related content described above. A specific implementation has been described in detail in the plurality of the previous modalities. For brevity, no enumeration is provided in this report.
[0164] [0164] Way 2
[0165] [0165] Optionally, step 230 specifically includes:
[0166] [0166] Step 2302: The terminal device receives at least a portion of antenna configuration information, where at least a portion of antenna configuration information is used to indicate a match between the N antenna groups and the N resource groups SRS.
[0167] [0167] Step 2303: The terminal device determines, based on the one-to-one correspondence between the N groups of SRS resources and the N groups of antennas, the jth group of antennas corresponding to the nth group of reference signal resources.
[0168] [0168] Specifically, the network device can configure a correspondence between an SRS resource group and an antenna group, and send the configured correspondence between the N antenna groups and the N SRS resource groups to the terminal device through the use of antenna configuration information so that the terminal device determines, based on the correspondence between the N antenna groups and the N SRS resource groups, the tenth antenna group corresponding to the nth SRS resource group.
[0169] [0169] In a possible design, the network device can represent the one-to-one correspondence between the N SRS resource groups and the N antenna groups through the use of an SRS resource group identifier and an identifier of a group of antennas or through the use of an SRS resource identifier and an antenna identifier. For example,
[0170] [0170] In another possible project, the network device can represent a correspondence between each SRS resource in the N SRS resource groups and a group of antennas through the use of an SRS resource identifier and an antenna identifier. For example, antenna configuration information can carry an SRS resource identifier and a corresponding antenna identifier, and each piece of antenna configuration information indicates an antenna corresponding to an SRS resource.
[0171] [0171] It should be understood that the specific forms of the antenna configuration information listed above are merely examples for the description and should not constitute any limitation in this application. In this order, the network device can indicate the one-to-one correspondence between the N groups of SRS resources and the N groups of antennas for the terminal device in another way.
[0172] [0172] Optionally, method 200 additionally includes:
[0173] [0173] Step 240: The network device sends at least a portion of first information, where the first information indicates whether a reference signal to be transmitted on each SRS resource in the N SRS resource groups or a reference signal to be sent by the terminal device is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection.
[0174] [0174] It should be noted that a case where the network device indicates that an SRS resource is to be sent in an antenna switching manner or an SRS resource is used to measure a channel for antenna selection can be referred to as an in which case the network device allows an SRS feature. The first information can be considered as an indication of activation of the antenna switching, that is, the first information indicates whether an SRS resource is to be sent in an antenna switching way or an SRS resource is used to measure a channel for selection antenna, or indicate whether antenna switching has been enabled for an SRS resource, or indicate whether an antenna selection function or antenna switching function is enabled for an SRS resource.
[0175] [0175] In this modality of this request, if the antenna switching is activated it can be configured for a group of SRS resources, or it can be configured for all SRS resources or groups of SRS resources in a BWP, or it can be configured for all SRS resources or SRS resource groups on a CC, or can be configured for one or more specific SRS resources or SRS resource groups on a BWP or CC, or can be configured for an SRS resource or SRS resource group configured for the terminal device. This is not limited in this order.
[0176] [0176] Optionally, step 240 includes: the network device sends a plurality of parts of the first information, where each part of the first information is used to indicate whether a reference signal in an SRS resource is to be sent in a switching manner antenna or if the reference signal is used to measure a channel for antenna selection, and each part of the first information corresponds to an SRS resource in the N SRS resource groups.
[0177] [0177] Correspondingly, the terminal device receives the plurality of parts of the first information.
[0178] [0178] That is, the network device indicates, for each SRS resource in the N SRS resource groups, whether a reference signal to be transmitted in each SRS resource is to be sent in an antenna switching manner or is used for measure a channel for antenna selection. In this case, a number of parts of the first information sent by the network device to the terminal device can be a number of SRS resources in the N SRS resource groups.
[0179] [0179] Optionally, step 240 includes: the network device sends at least a portion of first information, where each portion of first information is used to indicate whether the reference signals to be transmitted across all SRS resources in a set of SRS resources to which an SRS resource belongs are either to be sent in an antenna switching manner or are used to measure a channel for antenna selection.
[0180] [0180] Correspondingly, the terminal device receives at least part of the first information.
[0181] [0181] Specifically, the network device can define the N SRS resource groups as a set of SRS resources. In a possible design, if a reference signal to be transmitted on any SRS resource in a set of SRS resources is to be sent in an antenna switching manner or is used to measure a channel for antenna selection, the reference signals to to be transmitted on all SRS resources in the SRS resource set are to be sent in an antenna switched manner or are used to measure a channel for antenna selection. Therefore, the network device can indicate whether antenna switching has been enabled for any SRS resource in an SRS resource set, in order to indicate whether antenna switching has been enabled for all SRS resources in an SRS resource set.
[0182] [0182] Optionally, a set of SRS resources includes at least one of the N groups of SRS resources.
[0183] [0183] A set of SRS resources can include the N groups of SRS resources, or can include one or more of the N groups of SRS resources. Alternatively, the N SRS resource groups can belong to one or more sets of SRS resources. In other words, a set of SRS resources can include a plurality of SRS resources.
[0184] [0184] It should be noted that the network device can configure a plurality of SRS resource sets for the terminal device. For example, SRS resources in the same set of SRS resources can be used for the same function or a plurality of functions, for example, transmit beam scan, receive beam scan, antenna switching, antenna measurement CSI and a set of two or more of the functions listed above. This is not limited in this order. A plurality of sets of SRS resources configured by a base station may correspond to the previous N antenna groups, or may correspond to different antenna groups. This is not limited in this order. Optionally, the plurality of SRS resource sets correspond to different transmission beams.
[0185] [0185] In this case, a number of parts of the first information sent by the network device can be a number of sets of SRS resources configured by the network device for the terminal device.
[0186] [0186] Optionally, step 240 includes: the network device sends at least a portion of first information, where each portion of first information is used to indicate whether the reference signals to be transmitted across all SRS resources in a set of Reference signal resources are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection.
[0187] [0187] For a set of SRS resources, see the previous related descriptions. In a possible design, the network device can indicate whether antenna switching has been enabled by an SRS feature set to indicate whether all SRS features in the SRS feature set are to be sent in an antenna switched manner or are used to measure a channel for antenna selection.
[0188] [0188] In this case, a number of parts of the first information sent by the network device can be a number of SRS resource sets configured by the network device for the terminal device.
[0189] [0189] Optionally, step 240 includes: the network device sends a piece of first information, where the first information is used to indicate whether all reference signals to be sent by the terminal device are to be sent in a switching manner. antenna or if all reference signals are used to measure a channel for antenna selection.
[0190] [0190] Correspondingly, the terminal device receives a portion of first information.
[0191] [0191] That is, the network device can send a portion of first information to the terminal device, to indicate whether antenna switching has been activated for all reference signals sent by the terminal device, in other words, all signal signals. reference signals to be sent by the terminal device can be sent in an antenna switching manner, or all reference signals cannot be sent in an antenna switching manner.
[0192] [0192] After receiving at least a portion of first prior information, the terminal device can determine, based on at least a portion of first received information, whether a reference signal to be transmitted on each SRS resource in the N resource groups SRS or a reference signal to be sent by the terminal device is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection.
[0193] [0193] It should be understood that in a possible implementation, the network device indicates whether antenna switching has been enabled for an SRS resource, and whether antenna switching has been enabled for an SRS resource, can be predefined. For example, a protocol specifies that antenna switching is enabled in a case where the number of antennas used for simultaneous transmission is less than the number of downlink receiving antennas, or the number of antennas that can be used for simultaneous transmission is less than a total amount of uplink transmission antennas.
[0194] [0194] Optionally, method 200 additionally includes:
[0195] [0195] Step 250: The network device sends the second information, where the second information is used to indicate an initial moment of sending a reference signal.
[0196] [0196] Correspondingly, the terminal device receives the second information, where the second information is used to determine the initial moment of sending a reference signal.
[0197] [0197] Specifically, in this embodiment of this request, reference signals may include a reference signal transmitted periodically, a reference signal transmitted periodically and a reference signal transmitted semi-persistently. For the periodically transmitted reference signal and the semi-periodically transmitted reference signal, the network device can indicate a transmission period and an initial moment offset value using the resource configuration information, and for the reference transmitted periodically, only an offset value from an initial moment in relation to a trigger indication can be indicated in the resource configuration information. Therefore, the network device can send the trigger indication to the terminal device, so that the terminal device determines, based on a moment of sending the trigger indication and the offset value indicated in the resource configuration information, the initial moment of sending a reference signal. For the distinction, the activation indication is denoted with the second information. Optionally, the second information can be downlink control information (DCI). The second information can alternatively be other information or signaling. This is not limited in this order.
[0198] [0198] After determining, based on the second information received, the initial moment of sending a reference signal, the terminal device can send a reference signal in different groups of SRS resources through the use of different antennas. For example, if the displacement values k1 and k2 are set separately for two SRS resources (that is, the displacement values k1 and k2 are carried in resource configuration information), and DCI are corresponding to an interval / symbol n, a first SRS resource corresponds to an n + k1 range / symbol, and a second SRS resource corresponds to an n + k2 range / symbol. Alternatively, if the guard period indication information (ie a value of Y in fourth information mentioned below) is set, k2 does not need to be set, an SRS is sent in the range / symbol n + k1 in the first SRS resource and then it starts to be sent in an interval / symbol after an interval / symbol n + k1 + Y.
[0199] [0199] In this modality of this request, a trigger indication can trigger a plurality of transmission times of the reference signal, and an antenna used for each SRS transmission time may vary. Since antenna switching can be completed through a plurality of transmission times, that is, antennas that need to be used for channel measurement are searched. In other words, an amount of reference signal transmission times may be an amount of reference signal transmission times necessary to complete one turn of the antenna switching.
[0200] [0200] When the terminal device performs antenna switching, for example, switching from antenna group # 1 to antenna group # 2, a time interval between two SRS resource groups corresponding separately to the antenna group # 1 and antenna group # 2, must be greater than or equal to (or greater than) a guard period. A length of time of the holding period can be represented or quantized by a number of units of time. To facilitate the distinction from the first type of time unit above, the time unit in this report can be denoted as a second type time unit.
[0201] [0201] The guard period can be understood as a period of time required by the terminal device to perform the switching of the antenna, and the terminal device does not carry out the uplink transmission in the guard period.
[0202] [0202] In this embodiment of this request, the second type of time unit can be a symbol, a slot, a mini-interval, a subframe, or a radio frame, or it can be a plurality of symbols, or it can be be 1/2 symbol or 1/4 symbol, or it can be a predefined length of time or the like. It should be understood that the first type of time unit and the second type of time unit can be the same time unit or they can be different time units. This is not limited in this order.
[0203] [0203] Optionally, a length of time for a guard period includes Y units of second type time, where Y ≥ 1, and Y is an integer.
[0204] [0204] Optionally, method 200 additionally includes:
[0205] [0205] Step 260: The network device sends the fourth information, where the fourth information indicates a value of Y.
[0206] [0206] Correspondingly, in step 260, the terminal device receives the fourth information, where the fourth information indicates the value of Y.
[0207] [0207] That is, the network device can configure the length of the guard period for the terminal device based on a frequency band in which a BWP of the terminal device is located and a corresponding subcarrier spacing, and notify the terminal device of the length of the guard period by indicating the value of Y for the terminal device.
[0208] [0208] Optionally, a value range of Y is determined based on at least one of the following: a carrier frequency of a frequency domain resource used by the terminal device to send a reference signal and / or a spacing of subcarrier used by the terminal device to send a reference signal.
[0209] [0209] It can be understood that if the subcarrier frequencies are different, corresponding subcarrier spacing may be different. For example, when a carrier frequency is less than 6 GHz, a subcarrier spacing can be 15 kHz, 30 kHz or 60 kHz; when a carrier frequency is greater than 6 GHz, a subcarrier spacing can be 120 kHz, 240 kHz or 480 kHz.
[0210] [0210] For example, the second type of time unit is considered to be a symbol. When the subcarrier spacing is 15 kHz, 30 kHz or 60 kHz, the Y value can be 1; when the subcarrier spacing is 120 kHz, the Y value can be 2; when the subcarrier spacing is 240 kHz, the Y value can be 4; when the subcarrier spacing is 480 kHz, the Y value can be 8.
[0211] [0211] The Y value range can be predefined, for example, the Y value range is defined by a protocol. For example, the value range of Y corresponding to a plurality of possible subcarrier spacing can be defined by the protocol. The value range can be understood as a candidate set of Y values. It should be understood that a candidate set corresponding to each subcarrier spacing can include at least one value.
[0212] [0212] For example, the second unit of time is considered to be a symbol. When the subcarrier spacing is 15 kHz, 30 kHz or 60 kHz, the value range of Y can be {0, 1} or a subset of it; when the subcarrier spacing is 120 kHz, the value range of Y can be {0, 1, 2} or a subset of it; when the subcarrier spacing is 240 kHz, the value range of Y can be {0, 1, 2, 3, 4} or a subset of it; when the subcarrier spacing is 480 kHz, the value range of Y can be {0, 1, 2, 3, 4, 5, 6, 7, 8} or a subset of it.
[0213] [0213] Therefore, the network device can additionally configure the time period of the guard period for the terminal device based on the value range of Y.
[0214] [0214] In addition, optionally, method 200 additionally includes:
[0215] [0215] Step 270: The terminal device sends third information, where the third information carries a reference value of a time interval required by the terminal device, or the third information carries a minimum value of a time interval required by the terminal device.
[0216] [0216] Correspondingly, in step 270, the network device receives the third information, where the third information carries the reference value of the time interval required by the terminal device, or the third information carries the minimum value of the time interval required by the terminal device. terminal device.
[0217] [0217] The time interval required by the terminal device can be understood as a guard period.
[0218] [0218] In some communications systems, such as a 5G NR system, BWPs from different terminal devices may be located in different frequency bands, and correspond to different subcarrier spacing. In addition, the processing speeds of the antenna switching performed by different terminal devices can also be different. Therefore, different end devices can impose different time interval requirements. Therefore, the terminal device can report, to the network device, the reference value or the minimum value of the time interval required by the terminal device. It can be understood that the length of the guard period is greater than or equal to the minimum value which is the time interval required by the terminal device and which is reported by the terminal device.
[0219] [0219] Therefore, the network device can additionally determine the value of Y based on the reference value or the minimum value that is of the time interval and that is reported by the terminal device.
[0220] [0220] It should be understood that the previous method for setting the Y value for the network device, the previous method for setting the Y value for the protocol and the previous method for reporting the Y value for the terminal device, can be used separately or they can be combined. This is not limited in this order.
[0221] [0221] An SRS resource group time interval in at least two SRS resource groups is greater than or equal to (or greater than) a guard period. In addition, when performing rate matching or sending a PUCCH, the terminal device can control, based on a length of time of the guard period, a time interval of another signal (for example, a DMRS, data or signaling) or channel (for example, a PUSCH or a PUCCH) and a reference signal to be greater than or equal to a guard period, that is, to map the other signal or channel to a resource outside the guard period, in order to avoid a problem that the signal quality of some symbols may deteriorate due to a very short time domain distance between different signals. Therefore, the quality of signal reception is improved, and performance of the terminal device is improved.
[0222] [0222] It should be noted that a time interval of SRS resource groups in two SRS resource groups can be greater than or equal to a guard period, or it can be greater than a guard period. If an SRS resource group time interval in two SRS resource groups needs to be greater than or equal to a retention period, when the time interval is less than a retention period, an SRS (ie, an example of a first signal in the method provided below) can be transmitted using the method provided below. If an SRS resource group time interval in two SRS resource groups needs to be greater than or equal to a guard period, when the time interval is less than or equal to a guard period, an SRS can be can be transmitted using the method provided below.
[0223] [0223] Based on the previous technical solution, the terminal device can flexibly perform antenna switching based on a correspondence between a reference signal resource and an antenna. In comparison with the state of the art, antenna switching can be decoupled from a transmission period, and this mode is applicable to the transmission of the reference signal in several possible ways, thereby improving the performance of the terminal device.
[0224] [0224] When sending an uplink reference signal (for example, an SRS), the terminal device can simultaneously send another uplink signal or channel, for example, a physical uplink control channel (Physical Uplink Control Channel, PUCCH), a physical Uplink Share Channel, PUSCH, a physical random access channel (PRACH), an uplink DMRS, or a tracking reference signal (Phase Tracking Reference Signal, PTRS). When the transmission resources of two signals or channels overlap in the time domain or a time interval between the transmission resources is less than a guard period, and the transmission antennas of the two signals or channels cannot be used for simultaneous transmission, a resource conflict may occur. In a period of time of antenna switching, that is, in a guard period, the quality of signal reception deteriorates.
[0225] [0225] In view of the above, this order provides a method of sending and receiving a signal, to reduce a resource conflict and ensure the quality of signal reception.
[0226] [0226] It should be noted that, for the ease of the description below, a case in which a time interval between two groups of resources is less than a guard period is understood as a case in which the signal quality may deteriorate, and a case in which a time interval between two groups of resources is greater than or less than a guard period is understood as a case in which the signal quality can be guaranteed. However, this should not be a limitation in this order. For example, a case in which a time interval between two groups of resources is less than or equal to a guard period is understood as a case in which the signal quality may deteriorate, and a case in which a time interval between two groups of resources is longer than a guard period is understood as a case in which the signal quality can be guaranteed. This is not limited in this order.
[0227] [0227] With reference to FIG. 3 to FIG. 9, the following describes in detail a method of sending and receiving a signal, according to another modality of this order.
[0228] [0228] In this modality of this request, an uplink signal can include but is not limited to an SRS, a DMRS or a PTRS. An uplink channel can include but is not limited to a PUSCH,
[0229] [0229] FIG. 3 is a schematic flowchart of a method of sending and receiving signal 300, according to another embodiment of this order from a perspective of interaction between devices. As shown in FIG. 3, method 300 may include step 310 to step 3303.
[0230] [0230] In step 310, a network device sends fifth information, where the fifth information indicates a first resource used to transmit a first signal or a first channel and a second resource used to transmit a second signal or a second channel.
[0231] [0231] Correspondingly, in step 310, a terminal device receives the fifth information, where the fifth information indicates the first resource used to transmit the first signal or the first channel and the second resource used to transmit the second signal or the second channel.
[0232] [0232] The terminal device can determine, based on the fifth information received, a signal and / or a channel transmitted in a programming time unit, and a resource used to transmit the signal and / or the channel. Therefore, the terminal device can further determine a group of antennas (for example, denoted as a first group of antennas) used to transmit the first signal or first channel and a group of antennas (for example, denoted as a second group of antennas) ) used to transmit the second signal or the second channel. For example, the terminal device can determine, using the method 200 described above, the first group of antennas corresponding to the first resource and the second group of antennas corresponding to the second resource.
[0233] [0233] If a time interval between the first resource and the second resource is less than Y units of time of the second type, and at least some antennas in the first group of antennas and at least some antennas in the second group of antennas cannot be used for simultaneous transmission, the terminal device preferably sends a signal with a higher priority. Assuming that a first signal or first channel priority is higher than a second signal or second channel priority, in step 320, the end device sends the first signal or first channel on the first resource using the first group of antennas.
[0234] [0234] However, it must be understood that this does not mean that the terminal device does not send the second signal or the second channel. The terminal device can process the second signal or the second channel in any of the following ways:
[0235] [0235] Way A: The terminal device sends the second signal or the second channel on the second resource through the use of at least some antennas on the second group of antennas.
[0236] [0236] Way B: The terminal device sends the second signal or the second channel on the second resource through the use of at least some antennas on the first group of antennas.
[0237] [0237] Way C: The terminal device does not send the second signal or the second channel on the second resource.
[0238] [0238] The following separately describes Way A, Way B and Way C in detail with reference to the accompanying drawings.
[0239] [0239] FIG. 4 to FIG. 9 are schematic diagrams of sending the first signal or the first channel and the second signal or the second channel through the terminal device. In the following examples shown with reference to FIG. 4 to FIG. 9, the first signal or the first channel is considered to be a reference signal (for example, an SRS) used for channel measurement and is configured to be transmitted in a symbol 10 to a symbol 13, the second signal or the second channel is a PUSCH and is configured to be transmitted in a symbol 0 to symbol 10, an SRS priority is higher than that of PUSCH, a guard period includes a symbol and symbol 9 is the guard period.
[0240] [0240] Way A:
[0241] [0241] Optionally, method 300 additionally includes:
[0242] [0242] Step 3301: If at least some antennas in the second antenna group and any of the antennas in the first antenna group can be used for simultaneous transmission, the terminal device sends the second signal or the second channel on the second resource via the use of at least some antennas in the second group of antennas.
[0243] [0243] For example, the first antenna group used to transmit the SRS is considered to include an antenna # 0 and an antenna # 1, the second group of antennas used to transmit the PUSCH includes antenna # 1 and an antenna # 2 , and antenna # 0 and antenna # 2 cannot be used for simultaneous transmission. As shown in FIG. 4, at symbol 9 and symbol 10, the terminal device cannot send the PUSCH on the second resource using antenna # 1 and antenna # 2. In this case, the terminal device can send PUSCH in the second resource using antenna # 1 and antenna # 2 in symbol 0 to symbol 8, sending PUSCH in the second resource using only antenna # 1 in symbol 9 and symbol 10, and send the SRS on the first resource using antenna # 0 and antenna # 1 on symbol 10 to symbol 13.
[0244] [0244] Alternatively, as shown in FIG. 5, in symbol 9 and symbol 10, the terminal device cannot send the PUSCH in the second resource using antenna # 1 and antenna # 2. In this case, the terminal device sends the PUSCH on the second resource using antenna # 1 on symbol 0 to symbol 10, and sends the SRS on the first resource using antenna # 0 and antenna # 1 on symbol 10 for the 13 symbol.
[0245] [0245] Way B:
[0246] [0246] Optionally, method 300 additionally includes:
[0247] [0247] Step 3302: The terminal device sends the second signal or the second channel on the second resource through the use of at least some antennas on the first group of antennas.
[0248] [0248] For example, the first antenna group used to transmit the SRS is considered to include an antenna # 0 and an antenna # 1, the second group of antennas used to transmit the PUSCH includes an antenna # 2 and an antenna # 3 , antenna # 0 and antenna # 2 cannot be used for simultaneous transmission, and antenna # 1 and antenna # 3 cannot be used for simultaneous transmission. As shown in FIG. 6, at symbol 9 and symbol 10, the terminal device cannot send the PUSCH on the second resource using antenna # 2 and antenna # 3. In this case, the terminal device can send the PUSCH in the second resource using antenna # 2 and antenna # 3 in symbol 0 to symbol 8, perform the antenna switching but do not send the PUSCH in symbol 9, send the PUSCH on the second resource using antenna # 0 and antenna # 1 on symbol 10, and send the SRS on the first resource using antenna # 0 and antenna # 1 on symbol 10 to symbol 13.
[0249] [0249] Alternatively, as shown in FIG. 7, at symbol 9 and symbol 10, the terminal device cannot send the PUSCH on the second resource using antenna # 2 and antenna # 3. In this case, the terminal device can send PUSCH on the second resource using antenna # 0 and antenna # 1 on symbol 0 to symbol 10, and send the SRS on the first resource using antenna # 0 and from antenna # 1 on symbol 10 to symbol 13.
[0250] [0250] Way C:
[0251] [0251] Optionally, method 300 additionally includes:
[0252] [0252] Step 3303: If all of the antennas in the second group of antennas and at least one antenna in the first group of antennas cannot be used for simultaneous transmission, or all of the antennas in the second group of antennas and any of the antennas in the first antenna group cannot be used for simultaneous transmission, the terminal device does not send the second signal or the second channel on the second resource.
[0253] [0253] For example, the first antenna group used to transmit the SRS is considered to include an antenna # 0 and an antenna # 1, the second group of antennas used to transmit the PUSCH includes an antenna # 2 and an antenna # 3 , antenna # 0 and antenna # 2 cannot be used for simultaneous transmission, and antenna # 1 and antenna # 3 cannot be used for simultaneous transmission. As shown in FIG. 8, at symbol 9 and symbol 10, the terminal device cannot send the PUSCH on the second resource using antenna # 2 and antenna # 3. In this case, the terminal device can send PUSCH on the second resource using antenna # 2 and antenna # 3 on symbol 0 to symbol 8, cannot send PUSCH on symbol 9 and symbol 10, and can send the SRS on the first resource using antenna # 0 and antenna # 1 at symbol 10 to symbol 13.
[0254] [0254] Alternatively, as shown in FIG. 9, in symbol 9 and symbol 10, the terminal device cannot send the PUSCH in the second resource using antenna # 2 and antenna # 3. In this case, the terminal device does not send the second signal or the second channel, and sends the SRS on the first resource using antenna # 0 and antenna # 1 in symbol 10 to symbol 13.
[0255] [0255] Optionally, the previous method can be applied to only one part (for example, the symbol 10 shown in FIG. 4 to FIG. 9) where the first resource overlaps with the second resource in the time domain, and one part (for example, the symbol 9 shown in FIG. 4 to FIG. 9) that is in the second resource and where a time interval between the second resource and the first resource is less than Y. For example, the part in which the second resource overlaps with the first resource in the time domain and the part that is in the second resource and where the time interval between the second resource and the first resource is less than Y is denoted as a first part of the second resource, and a resource in the second resource except the first part of the second resource is normally used to send based on the configuration of the second channel or the second signal.
[0256] [0256] In Way A, if at least some antennas in the second antenna group and any of the antennas in the first antenna group can be used for simultaneous transmission, the terminal device sends the second signal or the second channel in the first part of the second feature through the use of at least some antennas in the second group of antennas.
[0257] [0257] In Way B, the terminal device sends the second signal or the second channel in the superimposed resource of the second resource and the first resource by using at least some antennas in the first group of antennas, and does not send the second signal or the second channel through the use of at least some antennas in the second group of antennas or all the antennas in the second group of antennas in the part that is in the second resource and in which the time interval between the second resource and the first resource is shorter that Y.
[0258] [0258] In Way C, if all of the antennas in the second group of antennas and any of the antennas in the first group of antennas cannot be used for simultaneous transmission, or all of the antennas in the second group of antennas and at least one antenna in first group of antennas cannot be used for simultaneous transmission, the terminal device does not send the second signal or the second channel in the first part of the second resource.
[0259] [0259] In a possible project, an SRS priority is higher than a PUSCH priority, and a PUCCH priority is higher than the SRS priority.
[0260] [0260] It should be understood that the terminal device can send the second signal or the second channel in another way, to avoid a case in which the second signal or the second channel is sent using an antenna that cannot be used for simultaneous transmission with an antenna in the first group of antennas in the guard period. The method listed above is merely an example for the description and should not be construed as limiting this application.
[0261] [0261] According to the previous method, when the terminal device transmits a signal or a channel through the use of different groups of antennas, it can be guaranteed that a time interval between different resources is greater than or equal to a length of time of a guard period, thus guaranteeing the quality of signal reception and improving the performance of the terminal device.
[0262] [0262] It should be noted that the previous method cannot only be used to send an uplink signal or an uplink channel, but it can also be used to receive a downlink signal or a downlink channel. When the previous method is used to receive a downlink signal or a downlink channel, a transmit antenna in the previous method 300 can be replaced with a receive antenna.
[0263] [0263] With reference to FIG. 10 to FIG. 16, the following describes in detail a method of sending and receiving a signal, according to another modality of this order.
[0264] [0264] In this embodiment of this request, to facilitate the distinction from the uplink signal and the uplink channel described above, a downlink signal can be denoted as a third signal or a fourth signal, and a link channel descendant can be denoted as a third channel or a fourth channel. It should be understood that the downlink signal may include, but is not limited to, a Synchronization Signal Block, SSB, CSI-RS, DMRS or PTRS. The downlink channel may include, but is not limited to, a physical downlink shared channel (Physical Downlink Share Channel, PDSCH) or a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
[0265] [0265] FIG. 10 is a schematic flowchart of a method of sending and receiving signal 400, according to yet another modality of this order from a perspective of interaction between devices. As shown in FIG. 10, method 400 may include step 410 and step 420.
[0266] [0266] In step 410, a network device sends a third signal or a third channel on a third resource.
[0267] [0267] In step 420, the network device sends a fourth signal or fourth channel on a fourth resource.
[0268] [0268] For example, a terminal device can determine, based on a PDCCH sent by the network device, a resource from a data signal sent using a PDSCH and a resource from a DMRS. For another example, the network device can determine a PDCCH resource or a PDSCH resource based on a predefined resource. A specific method for determining, by the terminal device, the third resource for sending the third signal or third channel and the fourth resource for sending the fourth signal or fourth channel through the network device can be the same as in the state of the art, and is not limited in this order. In addition, the terminal device may further determine, using, for example, the method provided in the previous method 200, a group of antennas corresponding to a group resource. For example, a group of antennas is configured by the network device or is predefined (for example, defined by a protocol). For brevity, detailed descriptions of the specific process are omitted from this report.
[0269] [0269] In this modality of this request, if the third resource and the fourth resource occupy different units of time of the first type, and a time interval between the third resource and the fourth resource is greater than or equal to a length of time of one guard period, the terminal device can receive the third signal or third channel on the third resource through the use of a third group of antennas and receive the fourth signal or fourth channel on the fourth resource through the use of a fourth group of antennas. antennas in the previous antenna switching manner.
[0270] [0270] Correspondingly, in step 410, the terminal device can receive the third signal or the third channel on the third resource through the use of a pre-configured antenna group (for example, denoted as the third antenna group) which is used to receive the third signal or the third channel.
[0271] [0271] In step 420, the terminal device can receive the fourth signal or fourth channel on the fourth resource through the use of a pre-configured antenna group (for example, denoted as the fourth antenna group) that is used to receive the fourth signal or the fourth channel.
[0272] [0272] If the third resource overlaps with the fourth resource in the time domain, and a time interval between the third resource and the fourth resource is less than a length of time for a retention period, when data is received at overlapping resource of time domain or in the interval of time less than a guard period, the quality of data reception can deteriorate. In this case, the terminal device can receive a signal or a channel using the method provided in the previous method 300.
[0273] [0273] The length of a holding period can be represented or quantized as Z units of time of the second type. In this report, a meaning of Z can be similar to the meaning of Y in the previous method 300, and the ways of determining it are also similar. In this mode, a different letter is defined only for the distinction between an uplink and a downlink. Therefore, this should not be a limitation in this order.
[0274] [0274] Correspondingly, in step 410, the terminal device receives the third signal or the third channel on the third resource, or the terminal device does not receive the third signal or the third channel.
[0275] [0275] In step 420, the terminal device receives the fourth signal or the fourth channel in the fourth resource through the use of the fourth group of antennas.
[0276] [0276] For ease of understanding, the following separately describes in detail a process in which the terminal device receives the third signal or the third channel in the third resource using the third group of antennas and a process in which the terminal device receives the fourth signal or the fourth channel in the fourth resource through the use of the fourth group of antennas with reference to the attached drawings.
[0277] [0277] Specifically, the terminal device can process the third signal or the third channel in any of the following ways:
[0278] [0278] Way D: The terminal device receives the third signal or the third channel on the third resource through the use of at least some antennas on the third group of antennas.
[0279] [0279] Way E: The terminal device receives the third signal or the third channel in the third resource through the use of at least some antennas in the fourth group of antennas.
[0280] [0280] Way F: The terminal device does not send the third signal or the third channel on the third resource.
[0281] [0281] The following separately describes Way D, Way E and Way F in detail with reference to the accompanying drawings.
[0282] [0282] FIG. 11 to FIG. 16 are schematic diagrams in which the terminal device receives the third signal or the third channel and the fourth signal or the fourth channel. In the following examples shown with reference to FIG. 11 to FIG. 16, the third resource is considered to be located before the fourth resource in the time domain, and a third signal or third channel priority is less than a fourth signal or fourth channel priority. The third signal or third channel is considered to be a PDSCH and is configured to be transmitted on a symbol 0 to a symbol 10, the fourth signal or fourth channel is a reference signal (for example, a CSI-RS) used for channel measurement and is configured to be transmitted in symbol 10 to a symbol 13, a second signal or a second channel is a PUSCH, a CSI-RS priority is higher than that of PDSCH, a guard period includes a symbol , and symbol 9 is the guard period.
[0283] [0283] Way D:
[0284] [0284] Optionally, step 410 specifically includes: if at least some antennas in the third antenna group and any of the antennas in the fourth resource group can be used for simultaneous reception, the terminal device receives the third signal or the fourth channel in the third resource through the use of at least some antennas in the third group of antennas.
[0285] [0285] For example, the fourth group of antennas used to transmit the CSI-RS is considered to include an antenna # 0 and an antenna # 1, the third group of antennas used to transmit the PDSCH includes antenna # 1 and an antenna # 2, and antenna # 0 and antenna # 2 cannot be used for simultaneous transmission. As shown in FIG. 11, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH in the third resource through the use of antenna # 1 and antenna # 2. In this case, the terminal device can receive PDSCH on the third resource using antenna # 1 and antenna # 2 on symbol 0 for symbol 8, receiving PDSCH on the third resource using only antenna # 1 on symbol 9 and symbol 10, and receive the CSI-RS in the fourth resource through the use of antenna # 0 and antenna # 1 in symbol 10 to symbol 13.
[0286] [0286] Alternatively, as shown in FIG. 12, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH on the third resource through the use of antenna # 1 and antenna # 2. In this case, the terminal device receives the PDSCH on the third resource using antenna # 1 on symbol 0 to symbol 10, and receives CSI-RS on the fourth resource using antenna # 0 and antenna # 1 symbol 10 to symbol 13.
[0287] [0287] Way E:
[0288] [0288] Optionally, step 410 specifically includes: the terminal device receives the third signal or the third channel on the third resource through the use of at least some antennas in the fourth group of antennas.
[0289] [0289] For example, the fourth group of antennas used to transmit the CSI-RS is considered to include an antenna # 0 and an antenna # 1, the third group of antennas used to transmit the PDSCH includes an antenna # 2 and an antenna # 3, antenna # 0 and antenna # 2 cannot be used for simultaneous transmission, and antenna # 1 and antenna # 3 cannot be used for simultaneous transmission. As shown in FIG. 13, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH on the third resource through the use of antenna # 2 and antenna # 3. In this case, the terminal device can receive the PDSCH in the third resource using antenna # 2 and antenna # 3 in symbol 0 to symbol 8, perform the antenna switching but do not receive the PDSCH in symbol 9, receive the PDSCH in the third resource using antenna # 0 and antenna # 1 in symbol 10, and receiving the CSI-RS in the fourth resource using antenna # 0 and antenna # 1 in symbol 10 for symbol 13 .
[0290] [0290] Alternatively, as shown in FIG. 14, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH on the third resource through the use of antenna # 2 and antenna # 3. In this case, the terminal device can receive the PDSCH on the third resource using antenna # 0 and antenna # 1 on symbol 0 for symbol 10, and receive CSI-RS on the fourth resource using antenna # 0 and from antenna # 1 at symbol 10 to symbol 13.
[0291] [0291] Way F:
[0292] [0292] Optionally, step 410 specifically includes: if all of the antennas in the third group of antennas and at least one antenna in the fourth group of antennas cannot be used for simultaneous transmission, or all of the antennas in the third group of antennas and any one of the antennas in the fourth group of antennas cannot be used for simultaneous transmission, the terminal device does not send the second signal or the second channel on the third resource.
[0293] [0293] For example, the fourth antenna group used to transmit the CSI-RS is considered to include an antenna # 0 and an antenna # 1, the third group of antennas used to transmit the PDSCH includes an antenna # 2 and an antenna # 3, antenna # 0 and antenna # 2 cannot be used for simultaneous transmission, and antenna # 1 and antenna # 3 cannot be used for simultaneous transmission. As shown in FIG. 15, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH on the third resource through the use of antenna # 2 and antenna # 3. In this case, the terminal device can receive the PDSCH on the third resource using antenna # 2 and antenna # 3 on symbol 0 for symbol 8, not receiving the PDSCH on symbol 9 and symbol 10, and receive the CSI -RS in the fourth resource through the use of antenna # 0 and antenna # 1 in symbol 10 to symbol 13.
[0294] [0294] Alternatively, as shown in FIG. 16, in symbol 9 and symbol 10, the terminal device cannot receive the PDSCH on the third resource through the use of antenna # 2 and antenna # 3. In this case, the terminal device does not directly send the second signal or the second channel, and receives the CSI-RS in the fourth resource through the use of antenna # 0 and antenna # 1 in symbol 10 to symbol 13.
[0295] [0295] Optionally, the previous method can be applied only to a part (for example, the symbol 10 shown in FIG. 11 to FIG. 16) where the fourth feature overlaps with the third feature in the time domain, and one part (for example, the symbol 9 shown in FIG. 11 to FIG. 16) that is in the third resource and where a time interval between the third resource and the fourth resource is less than Z. For example, the part in which the third resource overlaps with the fourth resource in the time domain and the part that is in the third resource and where the time interval between the third resource and the fourth resource is less than Z are denoted as a first part of the third resource, and a resource in the third resource except the first part of the third resource is normally used for reception based on the configuration of the second channel or the second signal.
[0296] [0296] In Way D, if at least some antennas in the third antenna group and any of the antennas in the fourth antenna group can be used for simultaneous transmission, the terminal device receives the third signal or the third channel in the first part of the third feature through the use of at least some antennas in the third antenna group.
[0297] [0297] In Way E, the terminal device receives the third signal or the third channel in the overlapping resource of the third resource and the fourth resource through the use of at least some antennas in the fourth group of antennas, and does not receive the third signal or the third channel through the use of at least some antennas in the third group of antennas or all the antennas in the third group of antennas in the part that is in the third resource and in which the time interval between the third resource and the fourth resource is shorter that Z.
[0298] [0298] In Way F, if all of the antennas in the third antenna group and any of the antennas in the fourth antenna group cannot be used for simultaneous transmission, or all of the antennas in the third antenna group and at least one antenna in the fourth group of antennas cannot be used for simultaneous transmission, the terminal device does not receive the third signal or the third channel in the first part of the third resource.
[0299] [0299] In a possible project, a CSI-RS priority is higher than a PDSCH priority, and a PDCCH priority is higher than the CSI-RS priority.
[0300] [0300] It should be understood that the terminal device can send the second signal or the second channel in another way, to avoid a case in which the second signal or the second channel is sent through the use of an antenna that cannot be used for simultaneous transmission with an antenna in the fourth group of antennas in the guard period. The method listed above is merely an example for the description and should not be construed as limiting this application.
[0301] [0301] According to the previous method, when the terminal device transmits a signal or a channel through the use of different groups of antennas, it can be guaranteed that a time interval between different resources is greater than or equal to a length of time of a guard period, thus guaranteeing the quality of signal reception and improving the performance of the terminal device.
[0302] [0302] It should be understood that the information or configuration information sent by the network device in this request can be transmitted using a signaling part or a plurality of signaling parts. The signaling can be carried in RRC signaling, MAC CE or DCI signaling. For transmission by using the plurality of signaling parts, indication information or configuration information can be divided into a plurality of parts, and each part is transmitted using a signaling part. Alternatively, one signaling can be used first to configure a candidate set of indication information or configuration information, and another signaling part is used to indicate a piece of information in the candidate set. Alternatively, a signaling part can be used first to configure a candidate set of indication information or configuration information, a second signaling part is used to indicate a subset of the candidate set, and then a third signaling part is used to indicate a piece of information in the subset of the candidate set. Optionally, indication information or configuration information can be configured by combining the plurality of previous methods.
[0303] [0303] It should be understood that in the modalities of this request, the first, the second, the third, the fourth and the fifth are merely used to distinguish between different objects and should not constitute any limitation in this request. For example, the first, second, third, fourth and fifth are used to distinguish between different groups of SRS resources, different resources, different groups of antennas, different signals, different channels and different information.
[0304] [0304] It should also be understood that the "preset" described above can be implemented by pre-storage of the corresponding code or a table on devices (for example, including the terminal device and the network device) or in another way of indicating related information. A specific implementation of the previous “template” is not limited in this order.
[0305] [0305] The methods provided in the modalities of this application are described above in detail with reference to FIG. 2 to FIG. 16. The apparatus provided in the modalities of this application are described below in detail with reference to FIG. 17 to FIG. 20.
[0306] [0306] FIG. 17 is a schematic block diagram of a signal sending apparatus 500, according to an embodiment of this application. As shown in FIG. 17, apparatus 500 may include a receiving unit 510 and a sending unit 520.
[0307] [0307] Receiving unit 510 is configured to receive at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine N reference signal resource groups, and each among the N reference signal resource groups includes at least one reference signal resource.
[0308] [0308] The sending unit 520 is configured to send a reference signal in a resource in a nth group of reference signal resources in the N groups of reference signal resources through the use of a jean group of antennas corresponding to the nth group of reference signal resources, where the nth group of antennas includes at least one antenna.
[0309] [0309] At least two of the N groups of reference signal resources occupy different time units of the first type, the N groups of reference signal resources correspond to the N groups of antennas and at least two among the N groups of antennas. antennas are different, where 1≤i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to
[0310] [0310] It should be understood that the device 500 can correspond to the terminal device in the method of sending and receiving signal 200 in the modalities of this request. Apparatus 500 may include modules configured to perform the method performed by the terminal device in the signal sending and receiving method 200 in FIG. 2. In addition, the modules in the apparatus 500 and the other previous operations and / or functions are intended separately to implement the corresponding procedures of the signal sending and receiving method 200 in FIG. 2. The specific processes for performing the corresponding previous steps by the modules are described in detail in Method 200. For brevity, the details are not described in this report again.
[0311] [0311] Alternatively, the device 500 may correspond to the terminal device in the method of sending and receiving signal 300 in the modalities of this request. Apparatus 500 may include modules configured to perform the method performed by the terminal device in the signal sending and receiving method 300 in FIG. 3. In addition, the modules in the apparatus 500 and the other previous operations and / or functions are intended separately to implement the corresponding procedures of the signal sending and receiving method 300 in FIG. 3. The specific processes for carrying out the corresponding previous steps by the modules are described in detail in Method 300. For brevity, the details are not described in this report again.
[0312] [0312] Alternatively, the apparatus 500 may correspond to the terminal device in the method of sending and receiving signal 400 in the modalities of this request. Apparatus 500 may include modules configured to perform the method performed by the terminal device in the method of sending and receiving signal 400 in FIG. 10. In addition, the modules in the apparatus 500 and the other operations and / or previous functions are intended separately to implement the corresponding procedures of the signal sending and receiving method 400 in FIG. 10. The specific processes for carrying out the corresponding previous steps by the modules are described in detail in Method 400. For brevity, the details are not described in this report again.
[0313] [0313] FIG. 18 is a schematic block diagram of a signal receiving apparatus 600, according to an embodiment of this application. As shown in FIG. 18, apparatus 600 may include a sending unit 610 and a receiving unit 620.
[0314] [0314] Sending unit 610 is configured to send at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine N reference signal resource groups, and each among the N reference signal resource groups includes at least one reference signal resource.
[0315] [0315] Receiving unit 620 is configured to receive a reference signal from a tenth group of antennas in a resource in a tenth group of reference signal resources in the N groups of reference signal resources, where the jth antenna group includes at least one antenna.
[0316] [0316] At least two of the N groups of reference signal resources occupy different time units of the first type, the N groups of reference signal resources correspond to the N groups of antennas and at least two of the N groups of antennas. antennas are different, where 1≤i≤N, 1≤j≤N, iej are integers, and N is an integer greater than or equal to
[0317] [0317] It should be understood that the device 600 can correspond to the network device in the method of sending and receiving signal 200 in the modalities of this request. The apparatus 600 may include modules configured to perform the method performed by the network device in the method of sending and receiving signal 200 in FIG. 2. In addition, the modules in the apparatus 600 and the other previous operations and / or functions are intended separately to implement the corresponding procedures of the signal sending and receiving method 200 in FIG. 2. The specific processes for performing the corresponding previous steps by the modules are described in detail in Method 200. For brevity, the details are not described in this report again.
[0318] [0318] Alternatively, the device 600 may correspond to the network device in the method of sending and receiving signal 300 in the modalities of this request. The apparatus 600 may include modules configured to perform the method performed by the network device in the signal sending and receiving method 300 in FIG. 3. In addition, the modules in the apparatus 600 and the other previous operations and / or functions are intended separately to implement correspondingly the signal sending and receiving method procedures 300 in FIG. 3. The specific processes for carrying out the corresponding previous steps by the modules are described in detail in Method 300. For brevity, the details are not described in this report again.
[0319] [0319] Alternatively, the device 600 can correspond to the network device in the method of sending and receiving signal 400 in the modalities of this request. The apparatus 600 may include modules configured to perform the method performed by the network device in the method of sending and receiving signal 400 in FIG. 10. In addition, the modules in the apparatus 600 and the other previous operations and / or functions are intended separately to implement the corresponding procedures of the signal sending and receiving method 400 in FIG. 10. The specific processes for carrying out the corresponding previous steps by the modules are described in detail in Method 400. For brevity, the details are not described in this report again.
[0320] [0320] FIG. 19 is a schematic structural diagram of a terminal device, according to an embodiment of this application. The terminal device can be applied to the system shown in FIG. 1, and perform a function of the terminal device in the mode of the previous method. For ease of description, FIG. 19 shows only the main components of the terminal device. As shown in FIG. 19, a terminal device 70 includes a processor, a memory, a control circuit, an antenna and an input / output device. The processor is mainly configured to: process a communication protocol and communication data, control the entire terminal device, run a software program and process data from the software program. For example, the processor is configured to support the terminal device to perform an action described in the previous method, for example, determining a tenth group of antennas corresponding to a tenth group of reference signal resources in N groups of signal resources of reference. The memory is mainly configured to store the software program and data, for example, to store a correspondence between indication information and combination information described in the previous modality. The control circuit is mainly configured to: perform the conversion between a baseband signal and a radio frequency signal and process the radio frequency signal. A combination of the control circuit and the antenna can also be referred to as a transceiver that is primarily configured to send / receive a radio frequency signal in an electromagnetic waveform. The input / output device, such as a touch screen, a display screen or a keyboard, is mainly configured to: receive the data entered by a user and send the data to the user.
[0321] [0321] After the terminal device is turned on, the processor can read the software program on a storage unit, explain and execute a software program instruction, and process the data from the software program. When the processor needs to send data using the antenna, after performing baseband processing on the data to be sent, the processor sends a baseband signal to a radio frequency circuit. After performing radio frequency processing on the baseband signal, the radio frequency circuit sends a radio frequency signal in an electromagnetic waveform through the use of the antenna. When data is sent to the terminal device, the radio frequency circuit receives a radio frequency signal through the use of the antenna, converts the radio frequency signal to a baseband signal, and sends the radio signal. baseband for the processor. The processor converts the baseband signal to data and processes the data.
[0322] [0322] One skilled in the art can understand that for ease of description, FIG. 19 shows only one memory and only one processor. A real terminal device can include a plurality of processors and a plurality of memories. Memory can also be referred to as a storage medium, a storage device or the like. This is not limited in this mode of this application.
[0323] [0323] In an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is primarily configured to process the communication protocol and communication data, and the central processing unit is primarily configured to: control the entire terminal device, run the software program and process the data from the software. The functions of the baseband processor and the central processing unit can be integrated into the processor in FIG.
[0324] [0324] In this modality of this request, the antenna and the control circuit that have a send / receive function can be considered as a transceiver unit 701 of the terminal device 70. For example, the transceiver unit 701 is configured to support the terminal device in performing the receive function and send function described in FIG. 2, FIG. 3 or FIG. 10. The processor that has a processing function is considered to be a 702 processing unit of the terminal device
[0325] [0325] Processor 702 can be configured to execute an instruction stored in memory, to control transceiver unit 701 to receive a signal and / or send a signal, thereby completing the function of the terminal device in the mode of the previous method. In one implementation, a function of the transceiver unit 701 can be implemented through the use of a transceiver circuit or a dedicated transceiver chip.
[0326] [0326] FIG. 20 is a schematic structural diagram of a network device, according to one embodiment of this application, for example, it can be a schematic structural diagram of a base station. As shown in FIG. 20, the base station can be applied to the system shown in FIG. 1, and implements a function of the network device in the mode of the previous method. A base station 80 can include one or more radio frequency units, such as a remote radio unit (RRU) 801 and one or more base band units (baseband unit, BBU) (which can also be referred to as a digital unit (digital unit, DU)) 802. The RRU 801 can be referred to as a transceiver unit, a transceiver, a transceiver circuit, a transceiver or the like, and the RRU 801 can include at least one antenna 8011 and a radio frequency unit 8012. The RRU 801 is primarily configured to send / receive a radio frequency signal and perform the conversion between a radio frequency signal and a baseband signal, for example, configured to send a signaling message in the previous mode to a terminal device. The BBU 802 is mainly configured to perform baseband processing, control the base station and the like. RRU 801 and BBU 802 can be physically arranged together, or they can be physically separated, in other words, base station 80 is a distributed base station.
[0327] [0327] The BBU 802 is a base station control center, can also be referred to as a processing unit, and is mainly configured to implement a baseband processing function, such as encoding, multiplexing, modulation and propagation of channel. For example, the BBU (the processing unit) 802 can be configured to control the base station to perform operating procedures related to the network device in the mode of the previous method.
[0328] [0328] In one example, the BBU 802 can include one or more cards, and a plurality of cards can jointly support a radio access network (for example, an LTE network) of a single access pattern, or can support separately radio access networks (such as an LTE network, a 5G network or another network) of different access patterns. The BBU 802 additionally includes an 8021 memory and an 8022 processor, and the 8021 memory is configured to store the necessary instructions and data. For example, memory 8021 stores a correspondence between a codebook index and a precoding matrix in the previous mode. The 8022 processor is configured to control the base station to perform a necessary action. For example, the 8022 processor is configured to control the base station to perform the related operating procedures for the network device in the mode of the previous method. The 8021 memory and the 8022 processor can be used for one or more cards. In other words, a memory and a processor can be arranged separately on each card, or a plurality of cards can share the same memory and the same processor. In addition, a necessary circuit can be additionally arranged on each plate.
[0329] [0329] This application additionally provides a communications system. The communications system includes one or more previous network devices and one or more previous terminal devices.
[0330] [0330] It should be understood that the processor in the modalities of this request can be a central processing unit (CPU), or the processor can be another general purpose processor, a digital signal processor, DSP), an application-specific integrated circuit (ASIC), an array of programmable gates (field programmable gate array, FPGA), another programmable logic device, a discrete gate, a transistor logic device, a component discrete or similar hardware. The general purpose processor can be a microprocessor, or the processor can be any conventional processor or the like.
[0331] [0331] It should also be understood that the memory in the modalities of this application can be a volatile memory or a non-volatile memory, or it can include a volatile memory and a non-volatile memory. The non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (programmable ROM, PROM), a programmable erasable read-only memory (erasable PROM, EPROM), a memory only programmable readout electrically erasable (electrically EPROM, EEPROM) or a flash memory. Volatile memory can be a random access memory (RAM), and is used as an external cache. Through examples but not a limiting description, many forms of random access memory (RAM) can be used, for example, a static random memory (static RAM, SRAM), a dynamic random access memory ( DRAM), a synchronous dynamic random access memory (synchronous DRAM, SDRAM), a double data rate synchronous dynamic random access memory (SDRAM, DDR SDRAM), an enhanced synchronous dynamic random access memory (enhanced SDRAM , ESDRAM), a synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and a direct rambus random access memory (direct rambus RAM, DR RAM).
[0332] [0332] All or some of the previous modalities can be implemented through the use of software, hardware, firmware or any combination thereof. When the software is used to implement the modalities, all or some of the previous modalities can be implemented in a form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When computer instructions or computer programs are loaded and executed on a computer, the procedures or functions in the modalities of this order are all or partially generated. The computer can be a general purpose computer, a dedicated computer, a computer network, or other programmable device. Computer instructions can be stored on a computer-readable storage medium or they can be transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from a website, a computer, a server, or a data center to another website, another computer, another server or another data center in a wired manner (for example, infrared, radio or microwave). Computer-readable storage media can be any usable media accessible by the computer, or it can be a data storage device, such as a server or a data center, integrating one or more usable media. Usable media can be magnetic media (for example, a floppy disk, hard drive or magnetic tape), optical media (for example, DVD), or semiconductor media. Semiconductor media can be a solid state drive.
[0333] [0333] It should be understood that the term “and / or” in this specification describes only one association relationship to describe the associated objects and represents that the three relationships can exist. For example, A and / or B can represent the following three cases: Only A exists, both A and B exist and only B exists. In addition, the “/” character in this specification generally indicates an “or” relationship between associated objects.
[0334] [0334] It should be understood that the sequence numbers of the previous processes do not mean the sequences of execution in the modalities of this request. The sequences of execution of the processes must be determined based on the functions and internal logic of the processes, and must not be interpreted as any limitation in the processes of implementing the modalities of this request.
[0335] [0335] A person skilled in the art may be aware that, in combination with the examples described in the modalities disclosed in this specification, the algorithm units and steps can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether functions are performed by hardware or software depends on particular applications and design restrictions of technical solutions. A person skilled in the art can use different methods to implement the functions described for each particular application, but implementation should not be considered to be beyond the scope of this request.
[0336] [0336] It can be clearly understood by a technician on the subject that,
[0337] [0337] In the various modalities provided in this application, it should be understood that the disclosed system, apparatus and method can be implemented in other ways. For example, the mode of the apparatus described is merely an example. For example, the unit division is merely a logical function division and can be another division in the actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not realized. In addition, the displayed mutual couplings or direct couplings or communication connections can be implemented via some interfaces. Indirect couplings or communication connections between devices or units can be implemented electronically, mechanically or in other ways.
[0338] [0338] The units described as separate parts, may or may not be physically separated, and the parts displayed as units may or may not be physical units, may be located in one position, or may be distributed in a plurality of network units . Some or all of the units can be selected based on real requirements to achieve the objectives of the modalities solutions.
[0339] [0339] In addition, the functional units in the modalities of this order can be integrated into a processing unit, or each of the units can exist physically alone, or two or more units can be integrated into one unit.
[0340] [0340] When functions are implemented as a functional software unit and sold or used as a standalone product, the functions can be stored on a computer-readable storage medium. Based on this understanding, the technical solutions of this application, essentially, either the part that contributes to the state of the art, or some of the technical solutions can be implemented in a form of a software product. The computer software product is stored on a storage medium, and includes several instructions for instructing a computer device (which can be a personal computer, a server or a network device) to perform all or some of the method steps in the this request. The previous storage media includes: any media that can store the program code, such as a USB flash drive, a removable hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk.
[0341] [0341] The preceding descriptions are merely specific implementations of this application, but are not intended to limit the scope of protection of this application. Any variation or substitution promptly identified by a technician in the matter within the technical scope disclosed in this order must be within the scope of protection of this order. Therefore, the scope of protection of this claim must be subject to the scope of protection of the claims.

权利要求:
Claims (32)
[1]
1. Signal sending method, CHARACTERIZED by the fact that it comprises: receiving at least a portion of resource configuration information, where at least a portion of resource configuration information is used to determine at least one set of resources reference signal, in which each set of reference signal resources from at least one set of reference signal resources comprises one or more reference signal resources, and in which different reference signal resources comprised in the same set of reference signal features occupy different symbols and correspond to different EU antenna ports; and sending a reference signal on at least one reference signal resource among the at least one set of reference signal resources.
[2]
2. Method, according to claim 1, CHARACTERIZED by the fact that: a time interval between at least two reference signal resources in the same set of reference signal resources is greater than or equal to Y symbols, in that Y is an integer greater than or equal to 0; and the value of Y satisfies at least one among: when the subcarrier spacing is 15 kilohertz (kHz), the value of Y is 1; when the subcarrier spacing is 30 kHz, the value of Y is 1; when the subcarrier spacing is 60 kHz, the value of Y is 1; or when the subcarrier spacing is 120 kHz, the Y value is 2.
[3]
3. Method, according to claim 1 or 2, CHARACTERIZED by the fact that the method comprises: receiving at least a part of first information to indicate whether reference signals to be transmitted on all reference signal resources in a set Reference signal resources are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection.
[4]
4. Method, according to claim 1 or 2, CHARACTERIZED by the fact that the method comprises: receiving a part of first information, in which the first information is used to indicate whether all the reference signals from the terminal device are to be sent in an antenna switching manner or if all reference signals are used to measure a channel for antenna selection.
[5]
5. Method according to any one of claims 1 to 4, CHARACTERIZED by the fact that the method comprises: determining a Y value based on a subcarrier spacing to send the reference signal; where the value of Y corresponds to the spacing of the subcarrier to send the reference signal.
[6]
6. Method according to any one of claims 1 to 5, CHARACTERIZED by the fact that the reference signal is an audible reference signal (SRS).
[7]
7. Method, according to claim 6, CHARACTERIZED by the fact that the method comprises: determining, based on an SRS resource identifier and an EU antenna port identifier, the EU antenna port corresponding to the resource SRS.
[8]
8. Signal receiving method, CHARACTERIZED by the fact that it comprises: sending at least a portion of resource configuration information, where at least a portion of resource configuration information is used to indicate at least one set of resources reference signal, in which each set of reference signal resources from at least one set of reference signal resources comprises one or more reference signal resources, and in which different reference signal resources comprised in the same set of reference signal features occupy different symbols and correspond to different EU antenna ports; and receiving a reference signal on at least one reference signal resource from at least one set of reference signal resources.
[9]
9. Method, according to claim 8, CHARACTERIZED by the fact that: a time interval between at least two reference signal resources in the same set of reference signal resources is greater than or equal to Y symbols, in that Y is an integer greater than or equal to 0; and the value of Y satisfies at least one among: when the subcarrier spacing is 15 kilohertz (kHz), the value of Y is 1; when the subcarrier spacing is 30 kHz, the value of Y is 1; when the subcarrier spacing is 60 kHz, the value of Y is 1; or when the subcarrier spacing is 120 kHz, the Y value is 2.
[10]
10. Method according to claim 8 or 9, CHARACTERIZED by the fact that the method comprises: sending a plurality of pieces of first information, where each piece of first information is used to indicate whether a reference signal in a resource reference signal is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection.
[11]
11. Method, according to claim 8 or 9, CHARACTERIZED by the fact that the method comprises: sending at least a part of first information to indicate whether reference signals to be transmitted in all reference signal resources in a set Reference signal resources are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection.
[12]
12. Method according to any of claims 8 to 11, CHARACTERIZED by the fact that the value of Y corresponds to the spacing of the subcarrier to send the reference signal.
[13]
13. Method according to any of claims 8 to 12, CHARACTERIZED by the fact that the reference signal is audible reference signal (SRS).
[14]
14. Signal sending apparatus, CHARACTERIZED by the fact that it comprises: a receiving unit (510), configured to receive at least a part of resource configuration information, in which at least a part of resource configuration information is used to determine at least one set of reference signal resources, where each set of reference signal resources among at least one set of reference signal resources comprises one or more reference signal resources, and where different reference signal resources comprised in the same set of reference signal resources occupy different symbols and correspond to different UE antenna ports; and a sending unit (520), configured to send a reference signal in at least one reference signal resource among the at least one set of reference signal resources.
[15]
15. Apparatus, according to claim 14, CHARACTERIZED by the fact that: a time interval between at least two reference signal resources in the same set of reference signal resources is greater than or equal to Y symbols, in that Y is an integer greater than or equal to 0; and the value of Y satisfies at least one among: when the subcarrier spacing is 15 kilohertz (kHz), the value of Y is 1; when the subcarrier spacing is 30 kHz, the value of Y is 1; when the subcarrier spacing is 60 kHz, the value of Y is 1; or when the subcarrier spacing is 120 kHz, the Y value is 2.
[16]
16. Apparatus according to claim 14 or 15, CHARACTERIZED by the fact that the receiving unit (510) is configured to: receive at least a portion of first information to indicate whether reference signals to be transmitted in all resources reference signals in a set of reference signal resources are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection.
[17]
17. Apparatus according to claim 14 or 15, CHARACTERIZED by the fact that the receiving unit (510) is configured to: receive a part of first information, in which the first information is used to indicate whether all the signals of terminal device references are to be sent in an antenna switching manner or if all reference signals are used to measure a channel for antenna selection.
[18]
18. Apparatus according to any one of claims 14 to 17, CHARACTERIZED by the fact that the apparatus comprises a processing unit; and the processing unit is configured to determine a value of Y based on a subcarrier spacing to send the reference signal; where the value of Y corresponds to the spacing of the subcarrier to send the reference signal.
[19]
19. Apparatus according to any one of claims 14 to 18, CHARACTERIZED by the fact that the reference signal is an audible reference signal (SRS).
[20]
20. Apparatus according to claim 19, CHARACTERIZED by the fact that the processing unit is configured to determine, based on an SRS resource identifier and an EU antenna port identifier, the EU antenna port corresponding to the SRS resource.
[21]
21. Signal receiving apparatus, CHARACTERIZED by the fact that it comprises: a sending unit (600), configured to send at least a part of resource configuration information, in which at least a part of resource configuration information it is used to indicate at least one set of reference signal resources, where each set of reference signal resources among the at least one set of reference signal resources comprises one or more reference signal resources, and in which different reference signal resources comprised in the same set of reference signal resources occupy different symbols and correspond to different UE antenna ports; and a receiving unit (620) configured to receive a reference signal on at least one reference signal resource from at least one set of reference signal resources.
[22]
22. Apparatus, according to claim 21, CHARACTERIZED by the fact that: a time interval between at least two reference signal resources in the same set of reference signal resources is greater than or equal to Y symbols, in that Y is an integer greater than or equal to 0; and the value of Y satisfies at least one among: when the subcarrier spacing is 15 kilohertz (kHz), the value of Y is 1; when the subcarrier spacing is 30 kHz, the value of Y is 1; when the subcarrier spacing is 60 kHz, the value of Y is 1; or when the subcarrier spacing is 120 kHz, the Y value is 2.
[23]
23. Apparatus according to claim 21 or 22, CHARACTERIZED by the fact that the sending unit (610) is configured to: send a plurality of pieces of first information, where each piece of first information is used to indicate whether a reference signal in a reference signal resource is to be sent in an antenna switching manner or if the reference signal is used to measure a channel for antenna selection; or.
[24]
24. Apparatus according to claim 21 or 22, CHARACTERIZED by the fact that the sending unit (610) is configured to: send at least a portion of first information to indicate whether reference signals to be transmitted in all resources reference signals in a set of reference signal resources are to be sent in an antenna switching manner or if the reference signals are used to measure a channel for antenna selection.
[25]
25. Apparatus according to any one of claims 21 to
24, CHARACTERIZED by the fact that the value of Y corresponds to the subcarrier spacing to send the reference signal.
[26]
26. Apparatus according to any one of claims 21 to 25, CHARACTERIZED by the fact that the reference signal is an audible reference signal (SRS).
[27]
27. Signal sending device, CHARACTERIZED by the fact that it comprises: a memory, configured to store a computer program; and a processor, configured to execute the computer program stored in memory, so that the apparatus performs the signal sending method as defined in any one of claims 1 to 7.
[28]
28. Signal receiving device, CHARACTERIZED by the fact that it comprises: a memory, configured to store a computer program; and a processor, configured to execute the computer program stored in memory, so that the apparatus performs the signal sending method as defined in any one of claims 8 to 13.
[29]
29. Computer-readable storage media, CHARACTERIZED by the fact that it comprises a computer program, in which when the computer program runs on a computer, the method as defined in any of claims 1 to 7 is carried out.
[30]
30. Computer-readable storage media, CHARACTERIZED by the fact that it comprises a computer program, in which when the computer program runs on a computer, the method as defined in any of claims 8 to 13 is performed.
[31]
31. Chip system, CHARACTERIZED by the fact that it comprises: a processor, configured to invoke a computer program from memory and run the computer program, so that a device on which the chip system is installed performs the method as defined in any one of claims 1 to 7.
[32]
32. Chip system, CHARACTERIZED by the fact that it comprises: a processor, configured to invoke a computer program from memory and run the computer program, so that a device on which the chip system is installed performs the method as defined in any of claims 8 to 13.

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法律状态:
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