TECHNIQUES AND APPLIANCES FOR BEAM MANAGEMENT TO OVERCOME MAXIMUM EXPOSURE CONDITIONS

专利摘要:
when a first node is subject to a maximum allowed exposure condition (mpe), it may be beneficial for the first node to signal, to a second node, an uplink beam to be used for communications and / or one or more properties of the beam uplink. for example, the first node can signal a downlink beam, a first reciprocal beam pair, and an uplink beam, a second reciprocal beam pair, to be used for communications, and / or it can signal one or more properties of the uplink beam and / or the downlink beam. additionally, or alternatively, the second node may transmit, to the first node, a signaling state (for example, a transmission configuration indication (tci) state) that indicates properties to be used to configure an uplink beam and / or a downlink beam. thus, the first node and the second node can configure beams in a way that takes into account the limitations of mpe.
公开号:BR112020008952A2
申请号:R112020008952-4
申请日:2018-10-09
公开日:2020-12-22
发明作者:Sundar Subramanian；Muhammad Nazmul Islam；Jianghong LUO；Ashwin Sampath；Junyi Li；Juergen Cezanne；Bilal Sadiq；Navid Abedini
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] This application claims priority for US Provisional Patent Application No. 62 / 582,749, filed on November 7, 2017, entitled “TECHNIQUES
[0002] [0002] Aspects of the present disclosure generally refer to wireless communications and, more particularly, to techniques and apparatus for beam management to overcome maximum permitted exposure conditions. BACKGROUND
[0003] [0003] Wireless communication systems are widely used to provide various telecommunication services, such as telephony, video, data, messages and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (for example, bandwidth, transmission power and / or the like). Examples of such multiple access technologies include code division multiple access systems (CDMA), time division multiple access systems (TDMA), frequency division multiple access systems (FDMA), division multiple access systems orthogonal frequency (OFDMA), single-carrier frequency division multiple access systems (SC-FDMA) and time-division synchronous code division multiple access systems (TD-SCDMA) and Long Term Evolution (LTE) . LTE / LTE-Advanced is a set of enhancements to the mobile standard of the Universal Mobile Telecommunication System (UMTS) promulgated by the Third Generation Partnership Project (3GPP).
[0004] [0004] A wireless communication network can include a number of base stations (BSs) that can support communication to a number of user devices (UEs). A UE can communicate with a BS through the downlink and uplink. The downlink (or direct link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail in this document, a BS can be referred to as a Node B, a gNB, an access point (AP), a radio head, a receive and transmit point (TRP), a BS 5G, a Node B 5G and / or similar.
[0005] [0005] The multiple access technologies above have been adopted in various telecommunications standards to provide a common protocol that allows different wireless communication devices to communicate at a municipal, national, regional and even global level. 5G, which can also be called New radio (NR), is a set of enhancements to the mobile LTE standard promulgated by Third
[0006] [0006] In some respects, a first node and a second node may be able to communicate through one or more millimeter wave beams (mmWave), and communication through an mmWave beam may follow different paths to reach a receiver . When transmitting in the mmWave frequency band, a transmitter can use a higher antenna gain compared to transmission in the sub-6 gigahertz (GHz) frequency band. As a result, the effective isotropic radiated power (EIRP), which represents the radiated power in a specific direction (for example, the beam direction), may be higher for mmWave communications compared to sub-6 GHz communications. To improve In terms of safety, some government agencies have imposed restrictions on the peak of EIRP that can be directed at the human body, sometimes referred to as the maximum allowed exposure (MPE). When the first node is subject to an MPE condition, a downlink beam may be suitable for use by the first node to communicate with the second node, but a corresponding uplink beam on the same reciprocal beam pair cannot be allowed for use due to the condition of MPE.
[0007] [0007] When a first node is subject to an MPE condition, it may be beneficial for the first node to signal, to a second node, an uplink beam to be used for communications and / or one or more properties of the uplink beam. In some respects, the uplink beam may not form a reciprocal beam pair with the downlink beam to be used for communications. In that case, the first node can signal a downlink beam, a first pair of reciprocal beam, and an uplink beam, a second pair of reciprocal beam, to be used for communications and / or it can signal one or more properties of the uplink beam and / or the downlink beam. In addition, or alternatively, the second node may transmit to the first node a signaling state (for example, a transmission configuration indication (TCI) state) that indicates properties to be used to configure an uplink beam and / or a downlink beam. In this way, the first node and the second node can configure beams in a way that takes into account the limitations of MPE.
[0008] [0008] In one aspect of the disclosure, a method, a node, an apparatus and a computer program product are provided.
[0009] [0009] In some ways, the method can be performed by a first node. The method may include determining an uplink beam as a candidate for communication with a second node; transmitting an indication of the uplink beam to the second node; and transmitting an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam.
[0010] [0010] In some ways, the method can be performed by a second node. The method may include receiving a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from a first node; determining an uplink beam, from the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals; and transmitting, to the first node, an indication of the uplink beam and one or more properties of an almost colocalized beam (QCL) to be used to configure the uplink beam.
[0011] [0011] In some ways, the method can be performed by a node. The method may include determining one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam; and transmitting a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam and the one or more second properties of the second QCL beam.
[0012] [0012] In some ways, the method can be performed by a first node. The method may include receiving a signaling state that indicates one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; configuring the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state; and communicate with a second node using the uplink beam.
[0013] [0013] In some aspects, a first node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to determine an uplink beam as a candidate for communication with a second node; transmitting an indication of the uplink beam to the second node; and transmitting an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam.
[0014] [0014] In some respects, a second node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to receive a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from a first node; determining an uplink beam, from the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals; and transmitting, to the first node, an indication of the uplink beam and one or more properties of an almost colocalized beam (QCL) to be used to configure the uplink beam.
[0015] [0015] In some aspects, a node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to determine one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam; and transmitting a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0016] [0016] In some aspects, a first node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to receive a signaling state that indicates one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; configuring the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state; and communicate with a second node using the uplink beam.
[0017] [0017] In some respects, a first device may include means for determining an uplink beam as a candidate for communication with a second device; means for transmitting an indication of the uplink beam to the second apparatus; and means for transmitting an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, wherein the reference signal has been previously communicated through the beam.
[0018] [0018] In some respects, a second apparatus may include means for receiving a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from a first apparatus; means for determining an uplink beam, from the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals; and means for transmitting, to the first apparatus, an indication of the uplink beam and one or more properties of an almost colocalized beam (QCL) to be used to configure the uplink beam.
[0019] [0019] In some respects, the apparatus may include means for determining one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; means for determining one or more second properties of a second QCL beam to be used to configure a downlink beam; and means for transmitting a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0020] [0020] In some aspects, a first apparatus may include means for receiving a signaling state that indicates one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam; means for configuring the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state; and means for communicating with a second device using the uplink beam.
[0021] [0021] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more processors from a first node, can cause one or more processors to determine an uplink beam as a candidate for communication with a second node; transmitting an indication of the uplink beam to the second node; and transmitting an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam.
[0022] [0022] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more second node processors, can cause one or more processors to receive a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from a first node ; determining an uplink beam, from the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals; and transmitting, to the first node, an indication of the uplink beam and one or more properties of an almost colocalized beam (QCL) to be used to configure the uplink beam.
[0023] [0023] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more processors on a node, can lead the one or more processors to determine one or more first properties of a near-colocalized beam (QCL) to be used to configure an uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam; and transmitting a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0024] [0024] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more first node processors, can cause the one or more processors to receive a signaling state that indicates one or more first properties of a near-colocalized beam (QCL) to be used to configure an uplink beam; configuring the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state; and communicate with a second node using the uplink beam.
[0025] [0025] In some ways, the method can be performed by a first node. The method may include determining an uplink beam for communication with a second node; determine a downlink beam as a candidate for communication with the second node; and transmitting an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair.
[0026] [0026] In some aspects, a first node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to determine an uplink beam for communication with a second node; determine a downlink beam as a candidate for communication with the second node; and transmitting an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair.
[0027] [0027] In some respects, a first device may include means for determining an uplink beam for communication with a second device; means for determining a downlink beam as a candidate for communication with the second device; and means for transmitting an indication of the uplink beam and the downlink beam to the second apparatus, wherein the uplink beam and the downlink beam are not a reciprocal beam pair.
[0028] [0028] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more processors from a first node, can cause one or more processors to determine an uplink beam for communication with a second node; determine a downlink beam as a candidate for communication with the second node; and transmitting an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair.
[0029] [0029] In some ways, the method can be performed by a second node. The method may include receiving, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, where the candidate uplink beam and the candidate downlink beam are not a reciprocal beam pair; determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam; and transmitting, to the first node, a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0030] [0030] In some aspects, a second node may include a memory and at least one processor coupled to the memory. The memory and at least one processor can be configured to receive, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, where the candidate uplink beam and the candidate downlink beam are not one reciprocal beam pair; determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam;
[0031] [0031] In some respects, a second device may include means for receiving, from a first device, an indication of a candidate uplink beam and a candidate downlink beam, where the candidate uplink beam and the candidate downlink beam are not. they are a pair of reciprocal bundles; means for determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam; means for determining one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam; and means for transmitting, to the first apparatus, a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0032] [0032] In some respects, the computer program product may include a non-transitory, computer-readable medium storing one or more instructions. The one or more instructions, when executed by one or more second node processors, can cause one or more processors to receive, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, where the candidate uplink beam and the candidate downlink beam are not a reciprocal beam pair; determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam; and transmitting, to the first node, a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam and the one or more second properties of the second QCL beam.
[0033] [0033] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer readable medium, user equipment, base station, node, first node, second node, wireless communication device and system process as substantially described in this document with reference to and as illustrated by the attached drawings and specifications.
[0034] [0034] The foregoing described in a very broad way the characteristics and technical advantages of the examples according to the disclosure, so that the detailed description below can be better understood. Additional features and benefits will be described below in this document. The specific design and examples disclosed can be easily used as a basis for modifying or designing other structures to achieve the same objectives as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed in this document, both their organization and method of operation, together with the associated advantages, will be better understood in the following description, when considered in connection with the attached figures. Each of the figures is provided for the purpose of illustration and description, and not as a definition of the limits of the claims. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] [0035] Figure 1 is a diagram illustrating an example of a wireless communication network.
[0036] [0036] Figure 2 is a diagram illustrating an example of a base station communicating with user equipment (UE) on a wireless communication network.
[0037] [0037] Figures 3-5 are diagrams illustrating examples referring to beam management to overcome maximum permitted exposure conditions.
[0038] [0038] Figures 6-11 are flowcharts of exemplary wireless communication methods.
[0039] [0039] Figure 12 is a conceptual data flow diagram illustrating the data flow between different modules / media / components in an exemplary device.
[0040] [0040] Figure 13 is a diagram illustrating an example of a hardware implementation for a device employing a processing system. DETAILED DESCRIPTION
[0041] [0041] The detailed description presented below in connection with the attached drawings is intended to describe the various configurations and is not intended to represent the configurations in which the concepts described here can be practiced. The detailed description includes specific details for the purpose of providing a full understanding of various concepts. However, it will be evident to those skilled in the art that these concepts can be practiced without these specific details. In some cases, well-known structures and components are shown in the form of a block diagram to avoid obscuring such concepts.
[0042] [0042] Various aspects of telecommunication systems will now be presented with reference to various devices and methods. These devices and methods will be described in the detailed description below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms and the like (collectively referred to as “elements”). These elements can be implemented using electronic hardware, computer software or any combination of them. The implementation of these elements as hardware or software depends on the specific application and the design restrictions imposed on the system as a whole.
[0043] [0043] As an example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system" that includes one or more processors. Examples of processors include microprocessors, microcontrollers, digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, logic gates, discrete hardware circuits and other suitable, configured hardware to perform the various features described throughout this report. One or more processors in the processing system can run the software. Software should be interpreted broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects , executables, threads, procedures, functions and / or the like, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
[0044] [0044] Therefore, in one or more exemplary modalities, the functions described can be implemented in hardware, software or any combination thereof. If implemented in software, functions can be stored or coded as one or more instructions or code in a computer-readable medium. The computer-readable medium includes computer storage medium. The storage medium can be any available medium that can be accessed by a computer. By way of example, and not by way of limitation, such a computer-readable medium may comprise a random access memory (RAM), a read-only memory (ROM), an electrically erasable programmable ROM (EEPROM), a compact disk ROM (CD) -ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, combinations of the aforementioned types of computer-readable medium or any other medium that can be used to store computer-executable code in the form of instructions or data structures that can be accessed by a computer.
[0045] [0045] It was observed that, although the aspects can be described in this document using the terminology commonly associated with 3G and / or 4G wireless technologies, the aspects of this disclosure can be applied in other generation-based communication systems, such as 5G and later, including 5G technologies.
[0046] [0046] Figure 1 is a diagram illustrating a network 100 in which aspects of the present disclosure can be practiced. Network 100 can be an LTE network or another wireless network, such as a 5G network. Wireless network 100 may include a number of BSs 110 (shown as BS 110a, BS 110b, BS 110c and BS 110d) and other entities on the network. A BS is an entity that communicates with user equipment (UEs) and can also be referred to as a base station, a BS 5G, a Node B, a gNB, an NB 5G, an access point, an access point receive and transmit (TRP) and / or the like. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term “cell” can refer to a coverage area of a BS and / or BS subsystem that serves that coverage area, depending on the context in which the term is used.
[0047] [0047] A BS can provide communication coverage for a macrocell, a pico-cell, a femto-cell and / or another type of cell. A macrocell can cover a relatively large geographical area (for example, several kilometers in radius) and can allow unrestricted access by UEs with a service subscription. A peak cell can cover a relatively small geographical area and can allow unrestricted access by UEs with a subscription to the service. A femto-cell can cover a relatively small geographic area (for example, a house) and may allow access restricted by UEs having association with the femto-cell (for example, UEs in a closed subscriber group (CSG)). A BS for a macrocell can be referred to as a macro-BS. A BS for a pico-cell can be referred to as pico-BS. A BS for a femto-cell can be referred to as a femto-BS or domestic BS. In the example shown in Figure 1, a BS 110a can be a macro-BS for a macrocell 102a, a BS 110b can be a pico-BS for a peak cell 102b and a BS 110c can be a femto-BS for a femto- cell 102c. A BS can support one or more (for example, three) cells. The terms "eNB", "base station", "BS 5G", "gNB", "TRP", "AP", "node B", "NB 5G" and "cell" can be used interchangeably in this document .
[0048] [0048] In some instances, a cell may not necessarily be stationary, and the cell's geographic area may move according to the location of a mobile BS. In some examples, BSs can be interconnected with each other and / or with one or more other BSs or network nodes (not shown) on access network 100 through various types of return interfaces, such as a direct physical connection, a virtual network and / or the like using any suitable transport network.
[0049] [0049] Wireless network 100 may also include relay stations. A relay station is an entity that can receive a data transmission from an upstream station (for example, a BS or a UE) and send a data transmission to a downstream station (for example, a UE or a BS) . A relay station can also be a UE, which can relay transmissions to other UEs. In the example shown in Figure 1, a relay station 1 can communicate with macro-BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station can also be referred to as a relay BS, a relay base station, a relay and / or the like.
[0050] [0050] Wireless network 100 may be a heterogeneous network that includes BSs of different types, for example, macro-BSs, pico-BSs, femto-BSs, relay BSs and / or the like. These different types of BSs can have different levels of transmission power, different coverage areas and different impacts on interference in the wireless network 100. For example, macro-BSs can have a high level of transmission power (for example, 5 to 40 Watts), while pico-BSs, femto-BSs and retransmission BSs may have lower levels of transmit power (for example, 0.1 to 2 Watts).
[0051] [0051] A network controller 130 can be coupled to a set of BSs and can provide coordination and control for those BSs. The network controller 130 can communicate with the BSs via a feedback. BSs can also communicate with each other, for example, directly or indirectly, via wireless or wired feedback.
[0052] [0052] UEs 120 (e.g. 120a, 120b, 120c) can be dispersed over wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station etc. An UE can be a cell phone (for example, a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a portable device, a laptop, a cordless phone, a local wireless circuit (WLL), a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, medical equipment or device, biometric sensors / devices, wearable devices (smart watches, smart clothes, smart glasses, smart bracelets, smart jewelry (for example, smart ring, smart bracelet)), an entertainment device (for example, a music or video device, satellite radio), a vehicle component or sensor, smart meters / sensors, industrial fabrication, a global positioning system device or any other suitable device that is configured to communicate over a wired or wireless medium.
[0053] [0053] Some UEs can be considered machine-type communication (MTC) UEs or improved or evolved machine-type communication (eMTC). MTC and eMTC UEs include, for example, robots, drones, remote devices, such as sensors, meters, monitors, location indicators, etc., that can communicate with a base station, another device (for example, remote device) , or some other entity. A wireless node can provide, for example, connectivity to a network (for example, a wide area network, such as the Internet, or a cellular network) over a wired or wireless communication link. Some UEs can be considered Internet of Things (IoT) devices and / or can be implemented as NB-IoT (narrowband band Internet) devices. Some UEs can be considered a CPE (Client Premises Equipment). The UE 120 can be included within a compartment that houses components of the UE 120, such as processor components, memory components and / or the like.
[0054] [0054] In general, any number of wireless networks can be implemented in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as radio technology, overhead interface and / or the like. A frequency can also be referred to as a carrier, frequency channel and / or the like. Each frequency can support a single RAT in a given geographic area, in order to avoid interference between wireless networks from different RATs. In some cases, RAT NR or 5G networks can be deployed.
[0055] [0055] In some respects, two or more UEs 120 (for example, shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (for example, without using a base station 110 as an intermediary for communicate with each other). For example, UEs 120 can communicate using point-to-point communications (P2P), device-to-device communications (D2D), a vehicle-to-everything protocol (V2X) (for example, which may include a vehicle to vehicle protocol (V2V) , a vehicle protocol for infrastructure (V2I), and / or the like), a mesh network and / or the like. In that case, the UE 120 may perform programming operations, resource selection operations and / or other operations described elsewhere in this document as being performed by base station 110.
[0056] [0056] In some respects, a base station 110 and / or a UE 120 may be referred to as a node, as described in more detail elsewhere in this document.
[0057] [0057] As indicated above, Figure 1 is just an example. Other examples are possible and may differ from what has been described with respect to Figure 1.
[0058] [0058] Figure 2 shows a block diagram 200 of a base station design 110 and UE 120, which can be one of the base stations and one of the UEs in Figure
[0059] [0059] At base station 110, a transmission processor 220 can receive data from a data source 212 to one or more UEs, select one or more modulation and encoding schemes (MCS) for each UE based, at least on partly, on channel quality indicators (CQIs) received from the UE, process (for example, encode and modular) the data for each UE based, at least in part, on the MCS (s) selected for the UE and provide data symbols for all UEs.
[0060] [0060] At UE 120, antennas 252a to 252r can receive downlink signals from BS 110 and / or other base stations and can provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 can condition (for example, filter, amplify, downwardly convert and digitize) a received signal to obtain input samples. Each demodulator 254 can still process the input samples (for example, for OFDM and / or the like) to obtain received symbols. A MIMO 256 detector can obtain symbols received from all demodulators R 254a to 254r, perform MIMO detection on received symbols, if applicable, and provide detected symbols. A receiving processor (RX) 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data collector 260, and provide control information and decoded system information to a controller / processor 280. A channel processor can determine RSRP, RSSI, RSRQ, CQI and / or the like.
[0061] [0061] In the uplink, in the UE 120, a transmission processor 264 can receive process data from a data source 262 and control information (for example, for reports comprising RSRP, RSSI, RSRQ, CQI and / or the like) from controller / processor 280. The transmission processor 264 can also generate reference symbols for one or more reference signals. The transmission processor symbols 264 may be pre-encoded by a TX MIMO 266 processor, if applicable, further processed by modulators 254a to 254r (for example, for DFT-s-OFDM, CP-OFDM and / or the like), and transmitted to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236, if applicable, and further processed by a receiving processor 238 to obtain control information and decoded data sent by the UE 120. The receiving processor 238 can provide the decoded data to a data collector 239 and the decoded control information to the controller / processor 240. The base station 110 can include communication unit 244 and communicate with network controller 130 through the communication unit
[0062] [0062] Controller / processor 240 of base station 110, controller / processor 280 of UE 120, and / or any other component (s) of Figure 2 can perform one or more techniques associated with beam management for overcome conditions of maximum permitted exposure, as described in more detail elsewhere in this document. For example, controller / processor 240 of base station 110, controller / processor 280 of UE 120, and / or any other component (s) of Figure 2 can perform or direct operations, for example, of process 600 of the Figure 6, method 700 of Figure 7, method 800 of
[0063] [0063] As indicated above, Figure 2 is provided as an example only. Other examples are possible and may differ from what has been described in relation to Figure 2.
[0064] [0064] 5G can refer to radios configured to operate according to a new air interface (for example, except air interfaces based on Orthogonal Frequency Division Multiple Access (OFDMA) or fixed transport layer (for example, except Internet (IP)) In some respects, 5G can use OFDM with a CP (here referred to as cyclic prefix OFDM or CP-OFDM) and / or SC-FDM in the uplink, can use CP-OFDM in the downlink and include support for half-duplex operation using TDD In some respects, 5G can, for example, use OFDM with a CP (hereinafter referred to as CP-OFDM) orthogonal spreading frequency division multiplexing by discrete Fourier transform (DFT-s-OFDM) on the uplink, you can use CP-OFDM on the downlink and include support for half-duplex operation using TDD.5G can include enhanced mobile broadband (eMBB) techniques for wide bandwidth communications (e.g. 80 MHz and above), millimeter waves (mmW) aiming at high carrier frequency (eg 60 gigahertz (GHz)), massive MTC (mMTC) targeted to MTC techniques not compatible with previous versions, and / or mission critical directed to ultra-reliable low latency communications service (URLLC).
[0065] [0065] A single component carrier bandwidth of 100 MHz can be supported. The 5G resource blocks can span 12 subcarriers with a 75 kilohertz (kHz) subcarrier bandwidth for a duration of 0.1 ms. Each radio frame can include 50 subframes with a length of 10 ms. Consequently, each subframe can be 0.2 ms long. Each subframe can indicate a link direction (for example, DL or UL) for data transmission, and the link direction for each subframe can be switched dynamically. Each subframe can include downlink / uplink (DL / UL) data, as well as DL / UL control data.
[0066] [0066] Beam formation can be supported and the beam direction can be dynamically configured. MIMO transmissions with pre-coding can also be supported. The MIMO configurations on the DL can support up to 8 transmission antennas with multi-layered DL transmissions of up to 8 streams and up to 2 streams per UE. Multilayer transmissions with up to 2 streams per EU can be supported. Multiple cell aggregation can be supported with up to 8 service cells. In some respects, NR may support a different overhead interface, other than an OFDM based interface. NR networks can include entities, such as central units or distributed units.
[0067] [0067] The RAN can include a central unit (CU) and distributed units (DUs). A BS 5G (for example, gNB, Node B 5G, Node B, receiving and transmitting point (TRP),
[0068] [0068] Figure 3 is an illustrative diagram of an example 300 related to beam management to overcome maximum permitted exposure conditions.
[0069] [0069] As shown in Figure 3, a first node 310 (for example, a UE 120) and a second node 320 (for example, a base station 110) may be able to communicate over one or more beams, and communication over a beam can take several different paths, shown as a cluster of paths, to reach a receiver. In some cases, a beam can be a millimeter wave beam (mmWave) that carries communication in the mmWave frequency band. When transmitting in the mmWave frequency band, a transmitter can use a higher antenna gain compared to transmission in the sub-6 gigahertz (GHz) frequency band. As a result, the effective isotropic radiated power (EIRP), which represents the radiated power in a specific direction (for example, the beam direction), may be higher for mmWave communications compared to sub-6 GHz communications. To improve For security, some government agencies have imposed restrictions on the peak of EIRP that can be targeted at the human body. These restrictions are sometimes referred to as maximum permitted exposure (MPE).
[0070] [0070] As shown by reference number 330, in some respects, an MPE condition may be due to a manual block scenario, where the hand of a user of the first node 310 blocks or obstructs communications to and / or a antenna submatrix of the first node 310, or is otherwise positioned close to the antenna submatrix. Additionally, or alternatively, the condition of MPE may be due to the position of other parts of the user's body, such as the face, head, ear, leg and / or the like. When the first node 310 is subject to an MPE condition, a downlink link from the first cluster 340 may be suitable for use by the first node 310 to communicate with the second node 320, but an uplink beam from the first cluster 340 may not be allowed for use due to MPE conditions. In that case, the uplink beam and the downlink beam can form a reciprocal beam pair, where the uplink beam is used for transmission on the first node 310 and the reception on the second node 320, and the downlink beam is used for transmission. in the second node
[0071] [0071] As indicated above, when the first node 310 is subject to an MPE condition, a downlink beam from a reciprocal beam pair may be suitable for use by the first node 310 to receive communications from the second node 320, and may have better beam conditions (for example, a stronger beam) compared to other downlink beams, but an uplink beam from the reciprocal beam pair may not be allowed for transmission of communications by the first node 310 due to the MPE condition. For example, the downlink beam cannot be subject to an MPE limitation because an EIRP level of a transmission through the second node 320 can decrease by the time that a transmission reaches the first node 310 and / or the user's hand or other body part. However, the uplink beam may be subject to an MPE limitation because an EIRP level of a transmission through the first node 310 may exceed an allowable EIRP level due to the proximity of the first node 310 and the hand or other body part of the user. This is shown by the first 340 cluster.
[0072] [0072] In this case, it may be beneficial for the first node 310 to signal, to the second node 320, an uplink beam to be used for communications and / or one or more properties of the uplink beam. In some respects, the uplink beam may not form a reciprocal beam pair with the downlink beam to be used for communications. For example, the uplink beam may be included in a second cluster 350, and may form a reciprocal beam pair with a downlink beam in the second cluster 350 that is weaker than and / or has less suitable beam conditions than the downlink beam in the first cluster 340. In that case, the first node 310 can signal a downlink beam, from a first pair of reciprocal beam (for example, the first cluster 340), and an uplink beam, from a second pair reciprocal beam (for example, the second cluster 350), to be used for communications, and / or can signal one or more properties of the uplink beam and / or the downlink beam. In addition, or alternatively, the second node 320 may transmit to the first node 310 a signaling state (for example, a transmission configuration indication (TCI) state) that indicates properties to be used to configure an uplink beam and / or a downlink beam. In this way, the first node 310 and the second node 320 can configure beams in a way that takes into account the limitations of MPE.
[0073] [0073] As indicated above, Figure 3 is provided as an example. Other examples are possible and may differ from what has been described in connection with Figure 3.
[0074] [0074] Figure 4 is a diagram illustrating an example 400 referring to beam management to overcome maximum permitted exposure conditions.
[0075] [0075] As shown in Figure 4, a first node 405 can communicate with a second node 410. In some respects, the first node 405 can be a UE (for example, the UE 120 and / or another UE described in this document) , and the second node 410 may be a base station (for example, base station 110 and / or another base station described in this document). In some respects, the first node 405 can be a first base station (for example, the base station 110 and / or another base station described in this document), and the second node 410 can be a second base station (for example, example, base station 110 and / or another base station described in this document). For example, the second base station can be a return base station that acts as an intermediary between the first base station (for example, an access base station) and a core network (for example, which includes the controller 130). In some respects, the first node 405 can be a first UE 120, and the second node 410 can be a second UE 120.
[0076] [0076] As shown by reference number 415, the first node 405 can determine that the first node 405 is subject to an MPE condition. For example, the first 405 node may be able to detect (for example, using wide band and / or narrow band variation techniques) if a particular antenna submatrix of the first 405 node is nearby and / or obstructed by a human body, whether a particular directional beam from the first node 405 is directed to and / or obstructed by the human body, and / or the like. When subject to the condition of MPE, the first node 405 may be subject to a transmission limitation due to the condition of MPE (for example, a limit on an antenna gain, a limit on a transmission power, and / or the like).
[0077] [0077] As shown by reference number 420, the first node 405 can determine an uplink beam as a candidate for communication with the second node 410 (for example, a beam through which the first node 405 must transmit communications to the second node 410). In some respects, the first node 405 can determine the uplink beam based, at least in part, on a determination that the first node 405 is subject to the MPE condition (for example, it is subject to a transmission limitation due to condition of MPE). For example, the first node 405 may not be allowed to use a particular uplink beam associated with the best beam parameter (s) (for example, a signal quality parameter, a signal strength parameter , and / or the like), it may not be allowed to use a particular uplink beam that is part of a reciprocal beam pair with a downlink beam associated with the best beam parameter (s), and / or similar, due to the condition of MPE (for example, because the particular uplink beam is directed at a human body). In that case, as an example, the first node 405 can determine a better uplink beam not subject to the MPE condition (for example, an uplink beam associated with the best beam parameter (s) within a group of uplink bundles not subject to the MPE condition). In some respects, the first node 405 can determine multiple uplink beams as candidates (for example, a group of uplink beams not subject to the MPE condition), and can classify the uplink beams based, at least in part, on corresponding beam parameters.
[0078] [0078] As yet shown, in some respects, the first node 405 can determine a downlink beam as a candidate for communication with the second node 410 (for example, a beam through which the first node 405 must receive communications from the second node 410). In some respects, the uplink beam and the downlink beam, identified as candidates for communication with the second node 410, may not be part of the same reciprocal beam pair. In some respects, the first node 405 can determine multiple downlink beams as candidates (for example, a group of downlink beams), and can classify the downlink beams based, at least in part, on corresponding beam parameters.
[0079] [0079] As shown by reference number 425, the first node 405 can transmit an indication to the second node 410. In some aspects, the first node 405 can indicate that the first node 405 is subject to an MPE condition. Additionally, or alternatively, the first node 405 can assign the uplink beam or a group of uplink beams to the second node (for example, using a beam index or beam indexes). Additionally, or alternatively, the first node 405 may indicate the downlink beam or a group of downlink beams to the second node 410 (for example, using a beam index or beam indexes). Additionally, or alternatively, the first node 405 can indicate a first reference signal associated with a first beam that is almost colocalized with the uplink beam and / or it can indicate a second reference signal associated with a second beam that is almost colocalized with the downlink beam, as described in more detail below.
[0080] [0080] As an example, and as shown, a first downlink beam (for example, shown as DL 1 beam) and a first uplink beam (for example, shown as UL 1 beam) can be part of a first pair of reciprocal beam, and a second downlink beam (for example, shown as DL 2 beam) and a second uplink beam (for example, shown as UL 2 beam) can be part of a second reciprocal beam pair. The first reciprocal beam pair can be associated with better beam parameters than the second reciprocal beam pair, but the first node 405 may not be allowed to use the first uplink beam due to an MPE condition. In that case, the first node 405 can determine the second uplink beam as a candidate for communication with the second node 410.
[0081] [0081] As shown by reference number 430, the first node 405 can transmit an indication of one or more uplink beams determined as candidates for communication with the second node 410 (for example, one or more uplink beams that are not subject to an MPE limitation). For example, the first node 405 can transmit a beam index for the UL 2 beam and a beam index for the UL 3 beam, which can be the best available uplink beams not subject to an MPE limitation. Additionally, or alternatively, the first node 405 can transmit an indication of a reference signal associated with an almost colocalized beam that is almost colocalized with the uplink beam, and the reference signal may have been previously communicated through the almost colocalized beam. When two beams are almost colocalized, one or more properties of one of the beams can be used to infer the corresponding one or more properties of the other beam, such as delay dispersion, Doppler dispersion, frequency shift, average gain , an average delay, an average received power, a received synchronization and / or the like.
[0082] [0082] As shown by reference number 435, in some respects, the reference signal may be a downlink reference signal, such as a secondary synchronization signal (SSS), a demodulation reference signal (DMRS) associated with one or more of a physical broadcasting channel (PBCH), a physical downlink control channel (PDCCH), or a shared physical downlink channel (PDSCH), a channel state information reference signal (CSI-RS) , a tracking reference signal (TRS), a phase tracking reference signal (PT-RS), a synchronization signal block (SS or SSB block), and / or the like. In example 400, the UL 2 beam is almost colocalized with a beam that was previously used to transmit a CSI-RS with an index of 4. In this case, the second node 410 may have previously used a particular beam to transmit CSI-RS 4 , and one or more properties of that particular beam can be used by the second node 410 to infer one or more corresponding properties of the UL 2 beam. In some respects, the first node 405 can indicate the one or more properties that should be inferred from the nearly beam colocalized used to communicate CSI-RS 4.
[0083] [0083] As shown by reference number 440, in some respects, the reference signal may be an uplink reference signal, such as an audible reference signal (SRS), an uplink DMRS associated with one or more than one physical uplink control channel (PUCCH) or a shared physical uplink channel (PUSCH), and / or the like. In example 400, the UL 3 beam is almost colocalized with a beam that was previously used to transmit an SRS with an index of 0. In some respects, the first node 405 may have previously used a particular beam to transmit SRS 0, and a or more properties of that particular beam can be used by the second node 410 to infer one or more corresponding properties of the UL 3 beam. In some respects, the first node 405 may indicate the one or more properties that should be inferred from the near-coiled beam used to communicate SRS 0.
[0084] [0084] In some respects, the first node 405 can be configured (for example, based on an instruction received from the second node 410) to transmit multiple uplink reference signals (for example, multiple SRS and / or the like) to the second node 410 in multiple corresponding beams, and the second node 410 may determine an uplink beam to be used based, at least in part,
[0085] [0085] In some respects, the first node 405 may indicate to the second node 410 that the first node 405 is not in a condition of beam reciprocity and / or that the first node 405 is subject to an MPE condition. The second node 410 may instruct the first node 405 to transmit the multiple uplink reference signals based, at least in part, on receipt of the indication that the first node 405 is not in a beam reciprocity condition and / or that the first node 405 is subject to an MPE condition. In some respects, the second node 410 may determine an uplink beam and / or one or more first properties of a first almost colocalized beam to be used to configure the uplink beam, and the first node 405 may determine a downlink beam and / or one or more second properties of a second almost colocalized beam to be used to configure the downlink beam.
[0086] [0086] In some respects, the first node 405 may use a downlink reference signal to indicate the near-colocalized beam when the first node 405 is in a beam reciprocity condition. For example, when channel conditions of a reciprocal beam pair are substantially the same (for example, within a boundary), then a downlink reference signal can be used to identify a downlink beam that is almost colocalized with a uplink beam indicated at the second node 410 because the downlink beam may have channel conditions similar to a corresponding uplink beam that is almost colocalized with the uplink beam indicated at the second node
[0087] [0087] As shown by reference number 445, the first node 405 can transmit an indication of one or more downlink beams determined as candidates for communication with the second node 410 (for example, which may not be subject to an MPE limitation ). For example, the first node 405 can transmit a beam index for a DL 1 beam and a beam index for a DL 2 beam, which may be the best downlink beams available. Additionally, or alternatively, the first node 405 may transmit an indication of a reference signal associated with an almost colocalized beam that is almost colocalized with the downlink beam, and the reference signal may have been previously communicated through the almost colocalized beam. In some respects, the first node 405 may indicate the first almost colocalized bundle associated with the uplink bundle and a second (e.g., different) quasi colocalized bundle associated with the downlink bundle.
[0088] [0088] As shown by reference number 450, in some respects, the reference signal, associated with the almost colocalized beam that is almost colocalized with the downlink beam, can be a downlink reference signal. In example 400, DL 1 beam is almost colocalized with a beam that was previously used to transmit a CSI-RS with an index of 3. In this case, the second node 410 may have previously used a particular beam to transmit CSI-RS 3, and one or more properties of that particular beam can be used by the second node 410 to infer one or more corresponding DL beam properties 1. In some respects, the first node 405 can indicate the one or more properties to be inferred from the nearly colocalized beam used to communicate CSI-RS 3.
[0089] [0089] As shown by reference number 455, in some respects, the second node 410 can configure an uplink beam based, at least in part, on a first almost colocalized beam that is almost colocalized with the uplink beam. For example, second node 410 may infer one or more properties of the uplink beam based, at least in part, on the corresponding one or more properties of the first nearly colocalized beam. Additionally, or alternatively, the second node 410 may configure a downlink bundle based, at least in part, on a second almost colocalized bundle that is almost colocalized with the downlink bundle. For example, the second node 410 may infer one or more properties of the downlink beam based, at least in part, on the corresponding one or more properties of the second almost colocalized beam. In this way, network resources and / or processing resources can be conserved that would otherwise be consumed to determine properties of the uplink beam and / or the downlink beam. In some respects, after configuring the uplink beam and / or the downlink beam, the second node 410 can communicate with the first node 405 using the uplink beam and / or the downlink beam.
[0090] [0090] As indicated above, Figure 4 is provided as an example. Other examples are possible and may differ from what was described in connection with Figure 4.
[0091] [0091] Figure 5 is a diagram illustrating an example 500 referring to beam management to overcome maximum permitted exposure conditions.
[0092] [0092] As shown in Figure 5, a first node 505 can communicate with a second node 510. In some respects, the first node 505 can correspond to the first node 405, described above in connection with Figure 4. Additionally, or alternatively , the second node 510 may correspond to the second node 510, described above in connection with Figure 4. In some respects, the first node 505 may be a UE (for example, the UE 120 and / or another UE described in this document), and the second node 510 can be a base station (for example, the base station 110 and / or another base station described in this document). In some aspects, the first node 505 can be a first base station (for example, the base station 110 and / or another base station described in this document), and the second node 510 can be a second base station (for example, example, base station 110 and / or another base station described in this document). For example, the second base station can be a return base station that acts as an intermediary between the first base station (for example, an access base station) and a core network (for example, which includes the controller 130). In some respects, the first node 505 can be a first UE 120, and the second node 510 can be a second UE 120.
[0093] [0093] As shown by reference number 515, the second node 510 can determine one or more first properties of a first almost colocalized beam to be used to configure an uplink beam (for example, an uplink beam used to communicate information from the first node 505 to second node 510). Additionally, or alternatively, the second node 510 can determine one or more second properties of a second near-colocalized beam to be used to configure a downlink beam (for example, a downlink beam used to communicate information from the second node 510 to the first node 505). The one or more first properties and / or the one or more second properties can include a property that can be inferred for the uplink beam and / or the downlink beam for a property of the first near-colocalized beam and / or the second beam almost colocalized. For example, a property of the uplink beam can be the same as a property of the first nearly colocalized beam, and a property of the downlink beam can be the same as a property of the second almost colocalized beam. The property can include, for example, a delay spread, a Doppler spread, a frequency shift, an average gain, an average delay, an average received power, a received synchronization, and / or the like.
[0094] [0094] As yet shown, the second node 510 can determine a signaling state to be used to indicate the one or more first properties and / or the one or more second properties to the first node 505. In some respects, the signaling state it can be a transmission configuration indication (TCI). For example, second node 510 can store one or more signaling status tables (for example, one or more TCI tables) that map signaling states to one or more first properties and / or one or more second properties. In some respects, a single signaling state value (for example, stored in a single signaling status table) can be used to indicate the one or more first properties for the uplink beam and the one or more second properties for the downlink beam, as described in more detail below. In some respects, separate signaling status values (for example, stored in separate signaling status tables) can be used to indicate one or more first properties and one or more second properties, as described in more detail below.
[0095] [0095] As shown by reference number 520, in some respects, the second node 510 can identify the signaling state using a single table, stored by the second node 510, which maps signaling state values to corresponding nearly colocalized beam properties to the uplink beam and the downlink beam. In that case, the signaling state may include a single value (for example, a two-bit value, a three-bit value, and / or the like) that indicates the uplink beam, the one or more first properties of the first QCL beam , the downlink beam, and the one or more second properties of the second QCL beam.
[0096] [0096] For example, as shown, a signaling state of State 0 (for example, bit values of 00,
[0097] [0097] As shown by reference number 525, in some respects, the second node 510 can identify the signaling state using a first table and a second table stored by the second node 510. As shown, the first table can map first values of signaling status for quasi-colocalized beam properties corresponding to the uplink beam, and the second table can map second signaling state values for quasi-colocalized beam properties corresponding to the downlink beam. In that case, the signaling state may include a first value (for example, a two-bit value, a three-bit value and / or the like) that indicates the uplink beam and one or more first properties of the first QCL beam, and may include a second value (for example, a two-bit value, a three-bit value, and / or the like) that indicates the downlink beam and the one or more second properties of the second QCL beam.
[0098] [0098] For example, as shown, a first signaling state for the uplink beam, shown as State 0 (for example, bit values of 00, bit values of 000, and / or the like), indicates the beam of uplink by indicating that an SRS 1 reference signal was previously communicated through the uplink beam and indicates one or more first properties to be used to configure the uplink beam as properties 1, 2 and 3. As shown, a second signaling status for the downlink beam, shown as State 1 (for example, bit values of 00, bit values of 000 and / or the like), indicates the downlink beam by indicating that a CSI- RS 0 was previously communicated through the downlink beam, and indicates one or more second properties to be used to configure the downlink beam as properties 4 and 5. In this case, when receiving the status 0 indication for the uplink beam, the first node 505 can configure the beam uplink using properties 1, 2 and 3 of the beam previously used to communicate SRS 1, and when receiving the indication of Status 1 for the downlink beam, you can configure the downlink beam using properties 4 and 5 of the beam previously used to communicate CSI- RS 0. Using separate signaling state values to communicate information to the uplink beam and the downlink beam, the second node 510 can improve flexibility by being able to indicate a greater number of combinations of properties for the uplink beam and the downlink beam.
[0099] [0099] As shown by reference number 530, the second node 510 can transmit, to the first node 505, a signaling state that indicates the uplink beam and the one or more first properties of a first almost colocalized beam to be used for configure the uplink beam. In addition, or alternatively, the second node 510 may transmit, to the first node 505, a signaling state indicating the downlink beam and the one or more second properties of a second almost colocalized beam to be used to configure the downlink beam. For example, as described above, second node 510 can transmit a signaling status value that indicates properties for only the uplink beam, it can transmit a signaling status value that indicates properties for only the downlink beam, and / or it can transmit a signaling status value that indicates properties for both the uplink beam and the downlink beam. In some aspects, the signaling status can be transmitted in downlink control (DCI) information.
[0100] [0100] As shown by reference number 535, the first node 505 can receive the signaling status value, and can configure the uplink beam and / or the downlink beam based, at least in part, on the status value signaling. In some respects, the first node 505 may store one or more local signaling status tables (for example, one or more local TCI tables) corresponding to one or more signaling status tables stored by the second node 510. For example, if the second node 510 stores a single signaling status table for both the uplink beam and the downlink beam, then the first node 505 can store a single signaling status table for both the uplink beam and the downlink beam . Likewise, if the second node 510 stores separate signaling status tables for the uplink beam and the downlink beam, then the first node 505 can store separate signaling status tables for both the uplink beam and the beam downlink. The first node 505 can search the signaling status value (s) in the local signaling status table (s) to identify the uplink beam, the one or more first properties for the uplink beam, the downlink beam, and / or the one or more second properties for the downlink beam. The first node 505 can use the identified information to configure the uplink beam (for example, using the one or more first properties) and / or the downlink beam (for example, using the one or more second properties).
[0101] [0101] In some respects, the first node 505 can transmit one or more uplink reference signals (for example, an SRS and / or the like) to the second node 510 through one or more corresponding uplink beams, and the second node 510 can determine an uplink beam for the first node 505 based, at least in part, on one or more uplink reference signals. For example, second node 510 may select an uplink beam with the best beam parameters based, at least in part, on an uplink reference signal received with the best signal parameter (s) . In that case, the second node 510 can generate the signaling status table (s) for the uplink beam, and can transmit the signaling status table (s) to the first node 505. Thus, the first node 505 and the second node 510 can use the same table.
[0102] [0102] In some respects, the signaling state may indicate one or more first properties associated with an uplink receiving beam on the second node 510 (for example, a beam used to receive information from the second node 510), which can be used through the first node 505 to configure an uplink transmission beam on the first node 505 (for example, a beam used to transmit information through the first node 505). Additionally, or alternatively, the signaling state may indicate one or more second properties associated with a downlink transmission beam at the second node 510 (for example, a beam used to transmit information through the second node 510), which can be used by the first node 505 to configure a downlink receiving beam on the first node 505 (for example, a beam used to receive information by the first node 505). For example, the second node 510 can signal the near-colocalization relationship from the perspective of the second node 510, and the first node 505 can use such a relationship to configure beams from the perspective of the first node 505.
[0103] [0103] As shown by reference number 540, the first node 505 and the second node 510 can communicate using the configured uplink beam and / or the configured downlink beam. When communicating configuration information for the uplink beam and the downlink beam (for example, instead of communicating configuration information for only one beam of a reciprocal beam pair), the first node 505 and the second node 510 may be able to configure non-reciprocal beams and communicate using non-reciprocal beams. This can improve performance and meet government regulations when, for example, the first 505 node is subject to an MPE condition.
[0104] [0104] As indicated above, Figure 5 is provided as an example. Other examples are possible and may differ from what was described in connection with Figure 5.
[0105] [0105] Figure 6 is a flow chart of a 600 wireless method of communication. The method can be carried out by a node (for example, the first node 405 in Figure 4, the first node 505 in Figure 5, UE 120 in Figure 1, base station 110 in Figure 1, apparatus 1202/1202 ' of Figure 12 and / or 13- and / or the like).
[0106] [0106] In 610, the node can determine an uplink beam as a candidate for communication with another node. For example, a first node can determine an uplink beam as a candidate for communication with a second node, as described above in connection with Figure 4. In some respects, the uplink beam is determined based, at least in part, in a determination that the first node is subject to a transmission limitation due to a maximum allowed exposure condition. Additionally, or alternatively, the uplink beam can be determined by measuring one or more uplink beams (for example, using one or more reference signals) and determining the best uplink beam that is not subject to a maximum allowed exposure condition.
[0107] [0107] In 620, the node can transmit an indication of the uplink beam to the other node. For example, the first node can transmit an indication of the uplink beam to the second node, as described above in connection with Figure 4. In some respects, the first node is configured to determine a downlink beam as a candidate for communication with the second node and transmit an indication of the downlink beam to the second node. In some respects, the uplink beam and the downlink beam are not a reciprocal beam pair.
[0108] [0108] In 630, the node can transmit an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam. For example, the first node may transmit an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, as described above in connection with Figure 4. In some respects, the reference signal may have been previously communicated through the beam.
[0109] [0109] In some ways, the reference signal is a downlink reference signal. In some respects, the downlink reference signal is indicated based, at least in part, on a determination that the first node is in a beam reciprocity condition. In some ways, the downlink reference signal is at least one of: a secondary sync signal, a demodulation reference signal associated with one or more of a physical broadcasting channel (PBCH), a physical downlink control channel (PDCCH) or a shared physical downlink channel (PDSCH), a channel status reference signal, a tracking reference signal, a phase tracking reference signal, a sync signal block, or a combination thereof.
[0110] [0110] In some ways, the reference signal is an uplink reference signal. In some respects, the uplink reference signal is indicated based, at least in part, on a determination that the first node is not in a beam reciprocity condition. In some respects, the uplink reference signal is at least one of: an audible reference signal, an uplink demodulation reference signal associated with one or more of a physical uplink control channel (PUCCH) or a physical channel uplink (PUSCH), or a combination of them.
[0111] [0111] In some ways, the first node is a user device and the second node is a base station. In some ways, the first node is a first base station and the second node is a second base station. In some respects, the first node indicates the maximum exposure condition allowed for the second node. In some respects, the first node is configured to indicate a first almost colocalized bundle associated with the uplink bundle and a second almost colocalized bundle associated with a downlink bundle. In some respects, one or more properties of the beam that is almost colocalized with the uplink beam are used to configure the uplink beam.
[0112] [0112] Although Figure 6 shows exemplary blocks of a wireless communication method, in some respects, the method may include additional blocks, less blocks, different blocks or blocks arranged differently from those shown in Figure 6. Additionally, or alternatively , two or more blocks shown in Figure 6 can be performed in parallel.
[0113] [0113] Figure 7 is a flow chart of a wireless method 700 of communication. The method can be carried out by a node (for example, the first node 405 in Figure 4, the first node 505 in Figure 5, UE 120 in Figure 1, base station 110 in Figure 1, apparatus 1202/1202 ' of Figure 12 and / or 13, and / or the like).
[0114] [0114] In 710, the node can receive a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from another node. For example, a second node can receive a plurality of uplink reference signals, through a corresponding plurality of uplink beams, from a first node, as described above in connection with Figures 4 and 5. In some respects, the second node instructs the first node to transmit the plurality of uplink reference signals to the second node. In some respects, the plurality of uplink beams are not subject to a maximum exposure condition allowed on the first node. In some respects, the plurality of uplink reference signals is received based, at least in part, on a determination that the first node is not in a beam reciprocity condition or that the first node is subject to a condition of maximum allowed exposure. In some respects, an uplink reference signal is at least one of: an audible reference signal, an uplink demodulation reference signal associated with one or more of a physical uplink control channel (PUCCH) or a physical channel uplink (PUSCH), or a combination of them.
[0115] [0115] In 720, the node can determine an uplink beam, of the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals. For example, the second node may select an uplink beam, from the plurality of uplink beams, based, at least in part, on the plurality of uplink reference signals, as described above in connection with Figures 4 and 5. In In some respects, the uplink beam is determined and / or selected based, at least in part, on measuring the plurality of uplink reference signals to determine an uplink beam that corresponds to the best uplink reference signal (e.g. the uplink reference signal with the best conditions).
[0116] [0116] In 730, the node can transmit, to the other node, an indication of the uplink beam and one or more properties of an almost colocalized beam (QCL) to be used to configure the uplink beam. For example, the second node may transmit to the first node an indication of the uplink beam and one or more properties of a QCL beam to be used to configure the uplink beam, as described above in connection with Figures 4 and 5. In some respects, the uplink beam is indicated by indicating a reference signal, of the plurality of uplink reference signals, which corresponds to the uplink beam. For example, the best reference signal, of the plurality of uplink reference signals, can be indicated.
[0117] [0117] Although Figure 7 shows exemplary blocks of a wireless communication method, in some respects, the method may include additional blocks, fewer blocks, different blocks, or blocks arranged differently from those shown in Figure 7. Additionally, or alternatively, two or more blocks shown in Figure 7 can be performed in parallel.
[0118] [0118] Figure 8 is a flow chart of a 800 method of wireless communication. The method can be carried out by a node (for example, the second node 410 in Figure 4, the second node 510 in Figure 5, the base station 110 in Figure 1, UE 120 in Figure 1, the apparatus 1202/1202 ' of Figure 12 and / or 13, and / or the like).
[0119] [0119] In 810, the node can determine one or more first properties of a first almost colocalized beam (QCL) to be used to configure an uplink beam. For example, a second node can determine one or more first properties of a first QCL beam to be used to configure an uplink beam, as described above in connection with Figure 5. The one or more first properties can include, for example, a delay dispersion, a Doppler dispersion, a frequency shift, an average gain, an average delay, an average received power, a received synchronization, and / or the like. These properties can be properties of a beam that is almost colocalized with the uplink beam.
[0120] [0120] At 820, the node can determine one or more second properties of a second QCL beam to be used to configure a downlink beam. For example, the second node can determine one or more second properties of a second QCL beam to be used to configure a downlink beam, as described above in connection with Figure 5. The one or more second properties can include, for example, a delay dispersion, a Doppler dispersion, a frequency shift, an average gain, an average delay, an average received power, a received synchronization, and / or the like. These properties can be properties of a beam that is almost colocalized with the downlink beam.
[0121] [0121] At 830, the node can transmit a signaling state that indicates the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam. For example, the second node may transmit a signaling state, as described above in connection with Figure 5. In some respects, the signaling state may indicate one or more of the uplink beam, the one or more first properties of the first beam QCL, the downlink beam and / or the one or more second properties of the second QCL beam. In some respects, the signaling state includes a single value that indicates the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam. In some respects, the signaling state includes a first value indicating the uplink beam and the one or more first properties of the first QCL beam, and the signaling state includes a second value indicating the downlink beam and the one or more second properties of the second QCL beam.
[0122] [0122] In some respects, the signaling state is identified using a single table, stored by the node, which maps signaling state values to nearly colocalized beam properties corresponding to the uplink beam and the downlink beam. In some respects, the signaling state is identified using a first table and a second table stored by the node, where the first table maps first signaling state values to properties of nearly colocalized beams corresponding to the uplink beam and the second table maps second signaling state values for nearly colocalized beam properties corresponding to the downlink beam.
[0123] [0123] In some respects, the signaling status is an indication of transmission configuration. In some respects, the one or more first properties of the first QCL beam are used to configure the uplink beam and the one or more second properties of the second QCL beam are used to configure the downlink beam.
[0124] [0124] Although Figure 8 shows exemplary blocks of a wireless communication method, in some respects, the method may include additional blocks, less blocks, different blocks or blocks arranged differently from those shown in Figure 8. Additionally, or alternatively , two or more blocks shown in Figure 8 can be performed in parallel.
[0125] [0125] Figure 9 is a flow chart of a 900 wireless communication method. The method can be carried out by a node (for example, the first node 405 in Figure 4, the first node 505 in Figure 5, UE 120 in Figure 1, base station 110 in Figure 1, apparatus 1202/1202 ' of Figure 12 and / or 13, and / or the like).
[0126] [0126] In 910, the node can receive a signaling state that indicates one or more first properties of a first almost colocalized beam (QCL) to be used to configure an uplink beam. For example, a first node may receive a signaling state that indicates one or more first properties of a first QCL beam, as described above in connection with Figure 5. In some respects, the one or more first properties must be used to configure an uplink beam. The first or more first properties can include, for example, a delay spread, a Doppler spread, a frequency shift, an average gain, an average delay, an average received power, an received synchronization, and / or the like. These properties can be properties of a beam that is almost colocalized with the uplink beam. In some respects, the signaling status is an indication of the transmission configuration.
[0127] [0127] In some respects, the signaling state indicates one or more second properties of a second QCL beam to be used to configure a downlink beam. In some respects, the first node is configured to communicate with the second node using the downlink beam configured based, at least in part, on one or more second properties. In some respects, the signaling state includes a single value that indicates both one or more first properties of the first QCL beam and one or more second properties of the second QCL beam. In some aspects, the signaling state includes a first value indicating the one or more first properties of the first QCL beam and a second value indicating the one or more second properties of the second QCL beam.
[0128] [0128] In 920, the node can configure the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state. For example, the first node can configure the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state, as described above in connection with Figure 5. The uplink beam can be configured, for example, defining one or more properties of the uplink beam to be the same as the one or more first properties indicated in the signaling state. These properties can be properties of a beam that is almost colocalized with the uplink beam and can therefore be used to configure the uplink beam.
[0129] [0129] In some respects, the uplink beam and the downlink beam are configured using information stored by the first node in a single table that maps signaling state values to QCL beam properties corresponding to the uplink beam and the downlink beam . In some respects, the uplink beam and the downlink beam are configured using information stored by the first node in a first table and a second table, where the first table maps first signaling state values to QCL beam properties corresponding to the beam uplink and the second table maps second signaling state values to QCL beam properties corresponding to the downlink beam.
[0130] [0130] In 930, the node can communicate with another node using the uplink beam. For example, the first node can communicate with a second node using the uplink beam, as described above in connection with Figure 5. For example, the first node and the second node can exchange control information on the uplink beam. In some aspects, the control information can be transmitted through an uplink control channel, such as a physical uplink control channel (PUCCH). Additionally, or alternatively, the first node and the second node can exchange data on the uplink beam. In some aspects, data can be transmitted via an uplink data channel, such as a shared physical uplink channel (PUSCH).
[0131] [0131] Although Figure 9 shows exemplary blocks of a wireless communication method, in some respects, the method may include additional blocks, less blocks, different blocks or blocks arranged differently from those shown in Figure 9. Additionally, or alternatively , two or more blocks shown in Figure 9 can be performed in parallel.
[0132] [0132] Figure 10 is a flow chart of a 1000 wireless communication method. The method can be carried out by a node (for example, the first node 405 in Figure 4, the first node 505 in Figure 5, UE 120 in Figure 1, base station 110 in Figure 1, apparatus 1202/1202 ' of Figure 12 and / or 13, and / or the like).
[0133] [0133] In 1010, the node can determine an uplink beam for communication with a second node. For example, a first node can determine an uplink beam for communication with a second node, as described above in connection with Figures 4-5. In some respects, the uplink beam is determined based, at least in part, on a determination that the first node is subject to a transmission limitation due to a maximum allowed exposure condition. In some respects, the first node indicates the maximum exposure condition allowed for the second node.
[0134] [0134] In 1020, the node can determine a downlink beam as a candidate for communication with the second node. For example, the first node can determine a downlink beam as a candidate for communication with the second node, as described above in connection with Figures 4-5. In some respects, the downlink beam does not form a reciprocal beam pair with the uplink beam. In some respects, the first node is configured to indicate a first almost colocalized bundle associated with the uplink bundle and a second almost colocalized bundle associated with a downlink bundle.
[0135] [0135] In 1030, the node can transmit an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair. For example, the first node can transmit an indication of the uplink beam and the downlink beam to the second node, as described above in connection with Figures 4-5. In some respects, the uplink beam and the downlink beam are not a reciprocal beam pair. In some respects, the indication of the uplink beam includes an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam.
[0136] [0136] In some ways, the reference signal is a downlink reference signal. In some respects, the downlink reference signal is indicated based, at least in part, on a determination that the first node is in a beam reciprocity condition. In some ways, the downlink reference signal is at least one of: a secondary sync signal, a demodulation reference signal associated with one or more of a physical broadcasting channel (PBCH), a physical downlink control channel (PDCCH), or a shared physical downlink channel (PDSCH), a channel state reference signal, a tracking reference signal, a phase tracking reference signal, a synchronization signal block, or a combination of them.
[0137] [0137] In some ways, the reference signal is an uplink reference signal. In some respects, the uplink reference signal is indicated based, at least in part, on a determination that the first node is not in a beam reciprocity condition. In some respects, the uplink reference signal is at least one of: an audible reference signal, an uplink demodulation reference signal associated with one or more of a physical uplink control channel (PUCCH) or a physical channel uplink (PUSCH), or a combination of them.
[0138] [0138] Although Figure 10 shows example blocks of a wireless communication method, in some respects, the method may include additional blocks, fewer blocks, different blocks, or blocks arranged differently from those shown in Figure 10. Additionally, or alternatively, two or more blocks shown in Figure 10 can be performed in parallel.
[0139] [0139] Figure 11 is a flow chart of an 1100 wireless communication method. The method can be carried out by a node (for example, the second node 410 in Figure 4, the second node 510 in Figure 5, the base station 110 in Figure 1, UE 120 in Figure 1, the apparatus 1202/1202 ' of Figure 12 and / or 13, and / or the like).
[0140] [0140] In 1110, the node can receive, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, where the candidate uplink beam and the candidate downlink beam are not a beam pair reciprocal. For example, a second node may receive, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, as described above in connection with Figures 4-5. In some respects, the candidate uplink beam and the candidate downlink beam are not a reciprocal beam pair. In some respects, the second node is a base station and the first node is a UE.
[0141] [0141] In 1120, the node can determine one or more first properties of a first almost colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam. For example, the second node may determine one or more first properties of a first QCL beam to be used to configure an uplink beam based, at least in part, on the candidate uplink beam indication, as described above in connection with the Figures 4-5. In some respects, the one or more first properties of the first QCL beam are used to configure the uplink beam. The first or more first properties can include, for example, a delay spread, a Doppler spread, a frequency shift, an average gain, an average delay, an average received power, an received synchronization, and / or the like. These properties can be properties of a beam that is almost colocalized with the uplink beam.
[0142] [0142] In 1130, the node can determine one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the candidate downlink beam indication. For example, the second node may determine one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam, as described above in connection with the Figures 4-
[0143] [0143] In 1140, the node can transmit, to the first node, a signaling state that indicates the uplink beam, the one or more first properties of the first QCL beam, the downlink beam and the one or more second properties of the second QCL beam. For example, the second node may transmit, to the first node, a signaling state indicating the uplink beam, the first or more properties of the first QCL beam, the downlink beam, and the one or more second properties of the second beam QCL, as described above in connection with Figures 4-
[0144] [0144] In some respects, the signaling state is identified using a single table, stored by the second node, which maps signaling state values to nearly colocalized beam properties corresponding to the uplink beam and the downlink beam. In some respects, the signaling state is identified using a first table and a second table stored by the second node, where the first table maps first signaling state values to properties of nearly colocalized beams corresponding to the uplink beam and the second table maps second signaling state values to nearly colocalized beam properties corresponding to the downlink beam. In some respects, the signaling status is an indication of the transmission configuration.
[0145] [0145] Although Figure 11 shows example blocks of a wireless communication method, in some ways, the method may include additional blocks, less blocks, different blocks or blocks arranged differently from those shown in Figure 11. Additionally, or alternatively , two or more blocks shown in Figure 11 can be performed in parallel.
[0146] [0146] Figure 12 is a conceptual data flow diagram 1200 illustrating the data flow between different modules / media / components in an example device 1202. Device 1202 can be a node (for example, the first node 405 in Figure 4, the second node 410 of Figure 4, the first node 505 of Figure 5, the second node 510 of Figure 5, base station 110, UE 120, and / or the like). In some respects, apparatus 1202 includes a reception module 1204, a determination module 1206, a configuration module 1208, and / or a transmission module
[0147] [0147] In some respects, the receiving module 1204 may receive, as data 1212, information associated with one or more beams (for example, beam parameters associated with an uplink beam and / or a downlink beam). The determination module 1206 can receive such information from the receiving module 1204 as data 1214, and / or can determine whether the apparatus 1202 is subject to an MPE condition. Determination module 1206 can determine an uplink beam as a candidate for communication with another device 1250 (for example, the first node 405 in Figure 4, the second node 410 in Figure 4, the first node 505 in Figure 5, the second node 510 of Figure 5, base station 110, UE 120, and / or the like). The transmission module 1210 can receive information associated with the uplink beam of the determination module 1206 as data 1216. The transmission module 1210 can transmit, as data 1218, an indication of the uplink beam to the device 1250. Additionally, or alternatively, the transmission module 1210 can transmit, as data 1218, an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, where the reference signal was previously communicated through the beam.
[0148] [0148] Additionally, or alternatively, the receiving module 1204 can receive, as data 1212, a plurality of uplink reference signals, through a corresponding plurality of beams, from another device
[0149] [0149] Additionally, or alternatively, the receiving module 1204 can receive, as data 1212, information associated with an uplink beam, a first QCL beam corresponding to the uplink beam, a downlink beam, and / or a second QCL beam corresponding to the downlink beam (for example, one or more beam parameters associated with those beams). The determination module 1206 can receive such information from the receiving module 1204 as data 1214, and can determine one or more first properties of the first QCL beam to be used to configure the uplink beam. In addition, or alternatively, the determination module 1206 can determine one or more second properties of the second QCL beam to be used to configure the downlink beam. The transmission module 1210 can receive, as data 1216, information associated with the uplink beam, the one or more first properties, the downlink beam and / or the one or more second properties. The transmission module 1210 can transmit, as data 1218 to the device 1250, a signaling state that indicates the uplink beam, the one or more first properties of the first QCL beam, the downlink beam and / or the one or more second properties of the second QCL beam.
[0150] [0150] Additionally, or alternatively, the receiving module 1204 can receive, as data 1212, a signaling state that indicates one or more first properties of a first QCL beam to be used to configure an uplink beam. The configuration module 1208 can receive information associated with the signaling status, the one or more first properties, the first QCL beam and / or the uplink beam as data 1220 of the receiving module 1204. The configuration module can configure the beam uplink based on, at least in part, the one or more first properties indicated in the signaling state, and can provide configuration information for the uplink beam to the 1210 transmission module as 1222 data. In addition, or alternatively, the uplink module configuration can configure a downlink beam based, at least in part, on the signaling state, and can provide configuration indication for the downlink beam to the receiving module 1204 as data 1224. The transmitting module 1210 can communicate with the device 1250 using the configured uplink beam, and / or the receiving module 1204 can communicate with the device 1250 using the configured downlink beam.
[0151] [0151] Additionally, or alternatively, the determination module 1206 can determine an uplink beam for communication with the 1250 device and / or can determine a downlink beam as a candidate for communication with the 1250 device. Such determinations can be based on , at least in part, in measurements from the receiving module 1204 (for example, as data 1212), the result of which can be provided to the determination module 1206 as data 1214. The uplink beam and the downlink beam determined by the module determination 1206 may not be reciprocal beam pair. The determination module 1206 can indicate the determined uplink beam and / or the determined downlink beam to the 1210 transmission module as data 1216. The transmission module 1210 can transmit an indication of the uplink beam and the downlink beam to the device 1250 .
[0152] [0152] Additionally, or alternatively, the receiving module 1204 can receive, from the 1250 device as data 1212, an indication of a candidate uplink beam and a candidate downlink beam. In some respects, the candidate uplink beam and the candidate downlink beam are not a reciprocal beam pair. Receiving module 1204 can pass this information to determination module 1206 as data 1214. Determination module 1206 can determine one or more first properties of a near-colocalized beam (QCL) to be used to configure an uplink beam based , at least in part, in the indication of the candidate uplink beam. In addition, or alternatively, the determination module 1206 can determine one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam. The determination module 1206 can indicate the one or more first properties and / or the one or more second properties to the transmission module 1210 as data 1216. The transmission module 1210 can transmit, to the device 1250 as data 1218, a signaling state which indicates the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[0153] [0153] The apparatus may include additional modules that execute each of the algorithm blocks in the flowchart of Figures 6, 7, 8, 9, 10 and / or 11. Thus, each block in the aforementioned flowchart of Figures 6, 7, 8, 9, 10 and / or 11 can be performed by a module and the device can include one or more of these modules. The modules can be one or more hardware components specifically configured to execute the declared processes / algorithms, implemented by a processor configured to execute the declared processes / algorithms, stored in a computer-readable medium for implementation by a processor, or a combination of the themselves.
[0154] [0154] The number and arrangement of modules shown in Figure 12 are provided as an example. In practice, there may be additional modules, fewer modules, different modules or modules arranged differently than shown in Figure 12. In addition, two or more modules shown in Figure 12 can be implemented in a single module, or a single module shown in Figure 12 can be implemented as multiple distributed modules. Additionally, or alternatively, a set of modules (for example, one or more modules) shown in Figure 12 can perform one or more functions described as being performed by another set of modules shown in Figure
[0155] [0155] Figure 13 is a diagram 1300 illustrating an example of a hardware implementation for an apparatus 1202 'employing a processing system 1302. Apparatus 1202' may be a node (for example, the first node 405 in Figure 4, the second node 410 of Figure 4, the first node 505 of Figure 5, the second node 510 of Figure 5, base station 110, UE 120, and / or the like).
[0156] [0156] Processing system 1302 can be implemented with a bus architecture, generally represented by bus 1304. Bus 1304 can include any number of interconnecting buses and bridges, depending on the specific application of processing system 1302 and general restrictions of project. The 1304 bus connects several circuits, including one or more processors and / or hardware modules, represented by the 1306 processor, the 1204, 1206, 1208 and / or 1210 modules and the computer-readable medium / memory
[0157] [0157] Processing system 1302 can be coupled to a 1310 transceiver. Transceiver 1310 is coupled to one or more 1312 antennas. Transceiver 1310 provides a means of communicating with various other equipment in a transmission medium. Transceiver 1310 receives a signal from one or more antennas 1312, extracts information from the received signal and supplies the extracted information to processing system 1302, specifically receiving module 1204. In addition, transceiver 1310 receives information from processing system 1302, specifically the transmission module 1210, and based, at least in part, on the information received, generates a signal to be applied to one or more antennas 1312. The processing system 1302 includes a processor 1306 coupled to a memory / medium readable by computer 1308. Processor 1306 is responsible for general processing, including running software stored in computer-readable memory / medium 1308. The software, when run by processor 1306, causes processing system 1302 to perform the various functions described above for any specific device. The computer-readable memory / medium 1308 can also be used to store data that is handled by the 1306 processor when running the software. The processing system also includes at least one of modules 1204, 1206, 1208 and / or 1210. The modules can be software modules running on processor 1306, resident / stored in the computer-readable medium / memory 1308, one or more modules hardware coupled to the 1306 processor, or a combination thereof.
[0158] [0158] In some respects, processing system 1302 may be a component of BS 110 and may include memory 242 and / or at least one of the TX MIMO 230 processor, RX 238 processor and / or controller / processor
[0159] [0159] In some respects, apparatus 1202/1202 'for wireless communication includes means for determining an uplink beam as a candidate for communication with a second node, means for transmitting an indication of the uplink beam to the second node, means for transmitting an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, where the reference signal was previously communicated through the beam, and / or the like. Additionally, or alternatively, the apparatus 1202/1202 'for wireless communication may include means for determining one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam, means for determining one or more second properties of a second QCL beam to be used to configure a downlink beam, means for transmitting a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam, and / or the like. Additionally, or alternatively, the apparatus 1202/1202 'for wireless communication may include means for receiving a signaling state that indicates one or more first properties of a first near-colocalized beam (QCL) to be used to configure an uplink beam, means for configuring the uplink beam based, at least in part, on the one or more first properties indicated in the signaling state, means for communicating with a second node using the uplink beam,
[0160] [0160] The aforementioned means can be one or more of the aforementioned modules of the apparatus 1202 and / or of the processing system 1302 of the apparatus 1202 'configured to perform the functions mentioned by the aforementioned means. As described above, in some respects, processing system 1302 may include the TX MIMO 230 processor, the receiving processor 238 and / or the controller / processor 240. Thus, in a configuration, the aforementioned means may be the processor TX MIMO 230, the receiving processor 238 and / or the controller / processor 240 configured to perform the functions mentioned by the aforementioned means. Additionally, or alternatively, as described above, processing system 1302 may include the TX MIMO 266 processor, the RX 258 processor and / or the controller / processor 280. Thus, in a configuration, the aforementioned means may be the processor TX MIMO 266, RX 258 processor, and / or controller / processor 280 configured to perform the functions mentioned by the means mentioned above.
[0161] [0161] Figure 13 is provided as an example. Other examples are possible and may differ from what has been described in connection with Figure 13.
[0162] [0162] It is understood that the specific order or hierarchy of blocks in the disclosed processes / flowcharts is an illustration of exemplary approaches. Based on the design preferences, it is understood that the specific order or hierarchy of blocks in the processes / flowcharts can be reorganized. In addition, some blocks can be combined or omitted. The attached method claims present elements of the various blocks in a sample order, and are not limited to the specific order or hierarchy presented.
[0163] [0163] The previous description is provided to allow anyone skilled in the art to practice the various aspects described in this document.
Several changes to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other aspects.
Thus, the claims are not intended to be limited to the aspects shown in this document, but must be in accordance with the entire scope consistent with the language claims, in reference to an element in the singular it is not intended to mean “one and only one”, unless specifically indicated, but “one or more”. The word "example" is used here to mean "serving as an example, instance or illustration". Any aspect described in this document as "exemplary" should not necessarily be interpreted as preferred or advantageous over other aspects.
Unless otherwise indicated, the term "some" refers to one or more.
Combinations, such as "at least one from A, B or C", "at least one from A, B and C" and "A, B, C or any combination thereof", include any combination of A, B and / or C, and may include multiples of A, multiples of B, or multiples of C.
Specifically, combinations, such as "at least one from A, B or C", "at least one from A, B and C" and "A, B, C, or any combination of them", can be just A, just B, only C, A and B, A and C, B and C, or A and B and C, where any combination can contain one or more members of A, B or C.
All structural and functional equivalents to the elements of the various aspects described throughout this disclosure are known or will later be known to those skilled in the art which are expressly incorporated herein by reference and are covered by the claims.
In addition, nothing disclosed here is intended to be dedicated to the public, regardless of whether such disclosure is explicitly mentioned in the claims.
No claim element should be interpreted as a means more function, unless the element is expressly quoted using the phrase "means to".

权利要求:
Claims (30)
[1]
1. A wireless communication method carried out by a first node, comprising: determining an uplink beam for communication with a second node; determine a downlink beam as a candidate for communication with the second node; and transmitting an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair.
[2]
A method according to claim 1, wherein the indication of the uplink beam includes an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, in which the reference signal was previously communicated through the beam.
[3]
A method according to claim 2, wherein the reference signal is a downlink reference signal.
[4]
A method according to claim 3, wherein the downlink reference signal is indicated based, at least in part, on a determination that the first node is in a beam reciprocity condition.
[5]
A method according to claim 3, wherein the downlink reference signal is at least one of: a secondary synchronization signal, a demodulation reference signal associated with one or more of a physical broadcasting channel (PBCH) ), a physical downlink control channel (PDCCH) or a shared physical downlink channel (PDSCH),
a channel status information reference signal, a tracking reference signal, a phase tracking reference signal, a synchronization signal block, or a combination thereof.
[6]
A method according to claim 2, wherein the reference signal is an uplink reference signal.
[7]
A method according to claim 6, wherein the uplink reference signal is indicated based, at least in part, on a determination that the first node is not in a beam reciprocity condition.
[8]
A method according to claim 6, wherein the uplink reference signal is at least one of: an audible reference signal, an uplink demodulation reference signal associated with one or more of a physical control channel uplink (PUCCH) or a shared physical uplink channel (PUSCH), or a combination thereof.
[9]
9. Method according to claim 1, wherein the uplink beam is determined based, at least in part, on a determination that the first node is subject to a transmission limitation due to a maximum allowed exposure condition .
[10]
A method according to claim 9, wherein the first node indicates the maximum exposure condition allowed to the second node.
[11]
A method according to claim 1, wherein the first node is configured to indicate a first near-colocalized beam associated with the uplink beam and a second almost colocalized beam associated with a downlink beam.
[12]
12. A wireless communication method carried out by a second node, comprising: receiving, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, in which the candidate uplink beam and the candidate downlink beam they are not a pair of reciprocal bundles; determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam; determining one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam; and transmitting, to the first node, a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam, and the one or more second properties of the second QCL beam.
[13]
Method according to claim 12, wherein the signaling state includes a first value indicating the uplink beam and one or more first properties of the first QCL beam, and wherein the signaling state includes a second value which indicates the downlink beam and the one or more second properties of the second QCL beam.
[14]
14. Method according to claim 12, wherein the signaling state is identified using a single table, stored by the second node, which maps signaling status values to properties of quasi-colocalized beams corresponding to the uplink beam and the beam downlink.
[15]
A method according to claim 12, wherein the signaling state is identified using a first table and a second table stored by the second node, wherein the first table maps first signaling state values to nearly colocalized beam properties corresponding to the uplink beam and the second table maps second signaling state values to properties of nearly colocalized beams corresponding to the downlink beam.
[16]
16. The method of claim 12, wherein the signaling status is an indication of transmission configuration.
[17]
17. The method of claim 12, wherein the one or more first properties of the first QCL beam are used to configure the uplink beam and the one or more second properties of the second QCL beam are used to configure the downlink beam. .
[18]
18. First node for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: determine an uplink beam as a candidate for communication with a second node; determine a downlink beam as a candidate for communication with the second node; and transmitting an indication of the uplink beam and the downlink beam to the second node, where the uplink beam and the downlink beam are not a reciprocal beam pair.
[19]
19. First node according to claim 18, wherein the indication of the uplink beam includes an indication of a reference signal associated with a beam that is almost colocalized with the uplink beam, where the reference signal was previously communicated through the beam.
[20]
20. First node according to claim 19, wherein the reference signal is a downlink reference signal.
[21]
21. The first node according to claim 20, wherein the downlink reference signal is indicated based, at least in part, on a determination that the first node is in a beam reciprocity condition.
[22]
22. The first node according to claim 19, wherein the reference signal is an uplink reference signal.
[23]
23. The first node according to claim 22, wherein the uplink reference signal is indicated based, at least in part, on a determination that the first node is not in a beam reciprocity condition.
[24]
24. First node according to claim 18, wherein the uplink beam is determined based, at least in part, on a determination that the first node is subject to a transmission limitation due to a maximum exposure condition allowed.
[25]
25. First node, according to claim 24, wherein the first node indicates the maximum exposure condition allowed to the second node.
[26]
26. First node according to claim 18, wherein the first node is configured to indicate a first almost colocalized beam associated with the uplink beam and a second almost colocalized beam associated with a downlink beam.
[27]
27. Second node for wireless communication, comprising: a memory; and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: receive, from a first node, an indication of a candidate uplink beam and a candidate downlink beam, in which the candidate uplink beam and the candidate downlink beam is not a reciprocal beam pair; determining one or more first properties of a first near colocalized beam (QCL) to be used to configure an uplink beam based, at least in part, on the indication of the candidate uplink beam;
determining one or more second properties of a second QCL beam to be used to configure a downlink beam based, at least in part, on the indication of the candidate downlink beam; and transmitting, to the first node, a signaling state indicating the uplink beam, the one or more first properties of the first QCL beam, the downlink beam and the one or more second properties of the second QCL beam.
[28]
28. Second node, according to claim 27, wherein the signaling state includes a first value indicating the uplink beam and the one or more first properties of the first QCL beam, and where the signaling state includes a second value indicating the downlink beam and the one or more second properties of the second QCL beam.
[29]
29. Second node, according to claim 27, in which the signaling state is identified using a single table, stored by the second node, which maps signaling state values to quasi-colocalized beam properties corresponding to the uplink beam and the downlink beam.
[30]
30. Second node, according to claim 27, wherein the signaling state is identified using a first table and a second table stored by the second node, wherein the first table maps first signaling state values to beam properties almost colocalized corresponding to the uplink beam and the second table maps second signaling state values to properties of near-colocalized beam corresponding to the downlink beam.

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法律状态:
2021-12-14| B350| Update of information on the portal [chapter 15.35 patent gazette]|

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