巴西专利BR112020015047A2 ALMOST-LOCALIZATION ASSUMPTIONS FOR APERIODIC CHANNEL STATUS REFERENCE SIGNAGE TRIGGERS

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专利摘要:
certain aspects of the present disclosure refer to assumptions of quasi-colocalization for reference signals (rs) of aperiodic channel state information (csi) in communications systems that operate according to nr techniques. an exemplifying method that can be performed by a eu includes determining a quasi-colocalization relationship (qcl) of an aperiodic channel state information reference signal (csi) (csi-rs) with a physical channel and processing the csi- aperiodic rs according to the determined qcl ratio.
公开号:BR112020015047A2
申请号:R112020015047-9
申请日:2019-01-23
公开日:2020-12-08
发明作者:Makesh Pravin John Wilson；Tao Luo
申请人:Qualcomm Incorporated；
IPC主号:

专利说明:

[0001] [0001] This application claims priority over application No. US 16 / 253,642, filed on January 22, 2019, which claims the benefit and priority of provisional patent application No. US 62 / 621,536, filed on January 24, 2018 , which are both attributed to this assignee and expressly incorporated into this document as a reference, in its entirety, as if it were completely presented below and for all applicable purposes. BACKGROUND REVELATION FIELD
[0002] [0002] The present disclosure relates, in general, to communication systems and, more particularly, to methods and apparatus for determining quasi-colocalization assumptions for aperiodic channel state information (CSI) reference signals (CSI-RS ) in communications systems with the use of beam formation and operation according to new radio (NR) technologies. DESCRIPTION OF RELATED TECHNIQUE
[0003] [0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messages and broadcasts. Typical wireless communication systems can employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (for example, bandwidth, transmission power). Examples of such multiple access technologies include Long Term Evolution (LTE) systems, code division multiple access systems (CDMA), time division multiple access systems (TDMA), multiple division access systems (FDMA), orthogonal frequency division multiple access systems (OFDMA), single carrier frequency division multiple access systems (SC-FDMA) and time division synchronized code division (TD) multiple access systems -SCDMA).
[0004] [0004] In some examples, a wireless multiple access communication system may include multiple base stations, each of which supports communication simultaneously to multiple communication devices, otherwise known as user equipment (UEs). In an LTE or LTE-A network, a set of one or more base stations can define an eNodeB (eNB). In other examples (for example, on a 5G or next generation network), a wireless multiple access communication system may include multiple distributed units (DUs) (for example, edge units (EUs), edge nodes (ENs) , radio heads (RHs), intelligent radio heads (SRHs), receiving and transmitting points (TRPs), etc.) in communication with various central units (CUs) (for example, central nodes (CNs), node controllers (ANCSs), etc.), in which a set of one or more distributed units, in communication with a central unit, can define an access node (for example, a new radio base station (NR BS), a new radio B node (NR NB), a network node, 5G NB, eNB, etc.). A base station or DU can communicate with a set of UEs on downlink channels (for example, for transmissions from a base station to a UE) and uplink channels (for example, for transmissions from a UE for a base station or distributed unit).
[0005] [0005] These multiple access technologies have been adopted in several telecommunication standards to provide a common protocol that allows different wireless devices to communicate at a municipal, national, regional and even global level. An example of an emerging telecommunication standard is the new radio (NR - New Radio), for example, 5G radio access. NR is a set of improvements to the mobile LTE standard promulgated by the Third Generation Partner Project (3GPP). It is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, using a new spectrum and better integrating with other open standards using OFDMA with a cyclic prefix (CP) on the downlink (DL) and on the uplink (UL), as well as support beam formation, multiple input and multiple output antenna technology (MIMO) and carrier aggregation.
[0006] [0006] However, as the demand for access to mobile broadband continues to increase, there is a need for further improvements in NR technology. Preferably, these enhancements should apply to other multiple access technologies and to the telecommunication standards that employ these technologies. BRIEF SUMMARY
[0007] [0007] The systems, methods and devices of revelation each have several aspects, none of which is solely responsible for their desirable attributes. Without limiting the scope of this disclosure as expressed by the following claims, some features will now be discussed shortly. After considering this discussion and, in particular, after reading the section entitled “Detailed Description”, an individual will understand how the features of this disclosure provide advantages that include enhanced communications between access points and stations on a wireless network.
[0008] [0008] Certain aspects of the present disclosure refer, in general, to quasi-colocalization assumptions for aperiodic channel status information (CSI) (RS) reference signals in communications systems operating according to new technologies. radio (NR).
[0009] [0009] Certain aspects provide a method for wireless communication through user equipment. The method generally includes determining a quasi-colocalization relationship (QCL) of an aperiodic channel status information (CSI) reference signal (CSI-RS) with a physical channel and processing the aperiodic CSI-RS accordingly with the determined QCL ratio.
[0010] [0010] Certain aspects provide a method for wireless communication through a base station. The method generally includes determining a quasi-colocalization relationship (QCL) of an aperiodic channel status information (CSI) reference signal (CSI-RS) with a physical channel and transmitting the aperiodic CSI-RS accordingly with the determined QCL ratio.
[0011] [0011] Certain aspects provide a method for wireless communication through a base station. The method generally includes determining a quasi-colocalization ratio (QCL) of an aperiodic polling reference signal (SRS) with a physical channel and processing the aperiodic SRS according to the determined QCL ratio.
[0012] [0012] Certain aspects provide a method for wireless communication through user equipment. The method generally includes determining a quasi-colocalization ratio (OCL) of an aperiodic polling reference signal (SRS) with a physical channel and transmitting the aperiodic SRS according to the determined QCL ratio.
[0013] [0013] Aspects include, in general, methods, apparatus, systems, computer-readable media and processing system, as substantially described in this document, with reference to and as illustrated by the accompanying drawings.
[0014] [0014] For the realization of the foregoing and related purposes, the one or more aspects comprise the characteristics hereafter completely described and particularly indicated in the claims. The following description and the accompanying drawings present in detail certain illustrative characteristics of the one or more aspects. However, these characteristics are indicative of just a few of the many ways in which the principles of different aspects can be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] [0015] So that the characteristics mentioned above of the present revelation can be understood in detail,
[0016] [0016] Figure 1 is a block diagram that conceptually illustrates an example telecommunications system, according to certain aspects of the present disclosure.
[0017] [0017] Figure 2 is a block diagram that illustrates an example logical architecture of a distributed RAN, according to certain aspects of the present disclosure.
[0018] [0018] Figure 3 is a diagram that illustrates an example physical architecture of a distributed RAN, according to certain aspects of the present disclosure.
[0019] [0019] Figure 4 is a block diagram that conceptually illustrates a design of an example BS and user equipment (UE), according to certain aspects of the present disclosure.
[0020] [0020] Figure 5 is a diagram showing examples for deploying a communication protocol stack, according to certain aspects of the present disclosure.
[0021] [0021] Figure 6 illustrates an example of a DL centric subframe, according to certain aspects of the present disclosure. [0022] Figure 7 illustrates an example of a centric UL subframe, according to certain aspects of the present disclosure.
[0023] [0023] Figure 8 shows an exemplary wireless communications system, in accordance with certain aspects of the present disclosure.
[0024] [0024] Figure 9 illustrates exemplary operations for wireless communications, in accordance with aspects of the present disclosure.
[0025] [0025] Figure 10 illustrates exemplary operations for wireless communications, in accordance with certain aspects of the present disclosure.
[0026] [0026] Figure 11 illustrates an exemplary transmission timeline, according to the aspects of the present disclosure.
[0027] [0027] Figure 12 illustrates exemplary operations for wireless communications, according to aspects of the present disclosure.
[0028] [0028] Figure 13 illustrates exemplary operations for wireless communications, in accordance with certain aspects of the present disclosure.
[0029] [0029] To facilitate understanding, identical reference numbers have been used, where possible, to designate identical elements that are common to the Figures. It is contemplated that the elements revealed in one aspect can be beneficially used in other aspects without specific quotation. DETAILED DESCRIPTION
[0030] [0030] Aspects of the present disclosure provide apparatus, methods, processing systems and computer-readable media for new radio (NR) (new radio access technology or 5G technology).
[0031] [0031] NR can support several wireless communication services, such as optimized mobile broadband services (eMBB) that target broadband communications (for example, 80 MHz and wider), millimeter wave services (mmW) that target high carrier frequency communications (for example, 27 GHz and higher), massive machine type communications (MMTC) services that target machine type communication techniques not compatible with previous versions (MTC) and / or critical services that target ultra-reliable low-latency communications (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTI) to meet respective Quality of Service (QoS) requirements. In addition, these services can coexist in the same subframe.
[0032] [0032] Aspects of the present disclosure refer to assumptions of quasi-colocalization for reference signals (RS) of aperiodic channel state information (CSI) in communications systems that operate in accordance with NR technologies. In accordance with aspects of the present disclosure, techniques are provided to determine a QCL ratio of aperiodic CSI-RS when the aperiodic CSI-RS is multiplexed by frequency division (FDM) and / or multiplexed by time division (TDM) with a PDSCH (for example, a downlink data channel).
[0033] [0033] The following description provides examples and does not limit the scope, applicability or examples presented in the claims. Changes can be made to the function and arrangement of the elements discussed without departing from the scope of the disclosure. Various examples can omit, replace or add various procedures or components, as appropriate. For example, the methods described can be performed in a different order than described, and several steps can be added, omitted or combined. In addition, the characteristics described in relation to some examples can be combined in some other examples. For example, a device can be implanted or a method can be practiced with the use of numerous aspects presented in this document. In addition, the scope of the disclosure is intended to cover such apparatus or method that is practiced with the use of another structure, functionality or structure and functionality in addition to or different from the various aspects of the present disclosure presented in this document. It should be understood that any aspect of the disclosure disclosed in this document may be incorporated by one or more elements of a claim. The word "exemplifier" is used in this document to mean "to serve as an example, case or illustration". Any aspect described in this document as an “example” should not necessarily be interpreted as preferential or advantageous in relation to other aspects.
[0034] [0034] The techniques described in this document can be used for several wireless communication networks such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other networks.
[0035] [0035] Figure 1 illustrates an exemplary wireless network 100, such as a new radio (NR) or 5G network, in which aspects of the present disclosure can be performed, for example, to enable connectivity sessions and the establishment of a communication protocol. Internet (IP), as described in more detail below.
[0036] [0036] As shown in Figure 1, wireless network 100 can include several BSs 110 and other network entities. A BS can be a station that communicates with UEs. Each BS 110 can provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to a coverage area of a Node B and / or a subsystem of Node B that serves that coverage area, depending on the context in which the term is used. In NR systems, the term “cell” and eNB, Node B, 5G NB, access point, NR BS, NR BS or TRP can be interchangeable. 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 base station. In some examples, base stations can be interconnected to each other and / or to one or more other base stations or network nodes (not shown) on wireless network 100 through various types of backhaul interfaces as a physical connection a virtual network or the like using any suitable transport network.
[0037] [0037] In general, any number of wireless networks can be installed in a given geographic area. Each wireless network can support a particular radio access technology (RAT) and can operate on one or more frequencies. A RAT can also be mentioned as a radio technology, an aerial interface, etc. A frequency can also be mentioned as a carrier, a frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks from different RATs. In some cases, NR or 5G RAT networks can be installed.
[0038] [0038] A BS can provide communication coverage for a macrocell, a picocell, a femtocell and / or other types 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 picocell can cover a relatively small geographical area and can allow unrestricted access by UEs with a service subscription. A femtocell can cover a relatively small geographic area (for example, a residence) and can allow restricted access by UEs that are associated with the femtocell (for example, UEs in a closed subscriber group (CSG), UEsS for users in the residence, etc.). A BS for a macrocell can be referred to as a BS macro. A BS for a picocell can be referred to as a BS peak. A BS for a femtocell can be referred to as a domestic BS or BS femto. In the example shown in Figure 1, BSs 110a, 110b and 110c can be macro BSs for macrocells 102a, 102b and 102c, respectively. The BS 110x can be a peak
[0039] [0039] Wireless network 100 may also include relay stations. A relay station is a station that receives a transmission of data and / or other information from an upstream station (for example, a BS or UE) and sends a transmission of the data and / or other information to a station at downstream (eg EU or BS). A relay station can also be a UE that relays transmissions to other UEs. In the example shown in Figure 1, a relay station 110r can communicate with a BS 110a and UE 120r in order to facilitate communication between BS l10a and UE 120r. A relay station can also be referred to as a relay BS, a relay, etc.
[0040] [0040] Wireless network 100 can be a heterogeneous network that includes BSs of different types, for example, macro BS, BS peak, BS femto, retransmissions, etc. These different types of BSs can have different transmit power levels, different coverage areas and different impact on interference on the wireless network 100. For example, the BS macro can have a high transmit power level (for example, 20 Watts ), while the BS peak, BS femto and retransmissions may have a lower transmit power level (for example, 1 Watt).
[0041] [0041] Wireless network 100 can support synchronous or asynchronous operation. For synchronous operation, the
[0042] [0042] A network controller 130 can be coupled to a set of BSs and provide coordination and control for those BSs. The network controller 130 can communicate with BSs 110 via a backhaul. BSs 110 can also communicate with each other, for example, directly or indirectly via wired or wireless backhaul.
[0043] [0043] UEs 120 (e.g. 120x, 120y, etc.) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. A UE can also be referred to as a mobile station, a terminal, an access terminal, a subscriber unit, a station, customer premises equipment (CPE), a cell phone, a smart phone, a personal digital assistant ( PDA), a wireless modem, a wireless communication device, a portable device, a laptop computer, a cordless phone, a local wireless circuit station (WLL), a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or medical equipment, a biometric device / sensor, a device usable close to the body like a smart watch, smart clothes, smart glasses, a smart bracelet, smart jewelry (for example, a smart ring, a smart bracelet, etc.), an entertainment device (for example, a music device, a video device, a satellite radio, etc.), a sensor or component vehicle, a smart meter / sensor, industrially manufactured equipment, a global positioning system device or any other suitable device that is configured to communicate via wireless or wired media. Some UEs can be considered machine-type or evolved communication devices (MTC) or evolved MTC devices (eMTC). The MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a BS, another device (for example, remote device) or some other entity. A wireless node can provide, for example, connectivity to or to a network (for example, a wide area network such as the Internet or a cellular network) over a wireless or wired communication link. Some UEs can be considered Internet of Things (IoT) devices.
[0044] [0044] In Figure 1, a continuous line with double arrows indicates desired transmissions between a UE and a service BS, which is a BS designated to serve the UE on the downlink and / or the uplink. A dashed line with double arrows indicates transmissions of interference between a UE and a BS.
[0045] [0045] Certain wireless networks (for example, LTE) use orthogonal frequency division multiplexing
[0046] [0046] Although the aspects of the examples described in this document may be associated with LTE technologies, aspects of the present disclosure may be applicable to other wireless communication systems, such as NR. The NR can use OFDM with a CP on the uplink and downlink and include support for half duplex operation with the use of time division duplexing (TDD). A single carrier-component bandwidth of 100
[0047] [0047] In some examples, access to the air interface can be programmed, in which a programming entity (for example, a base station) allocates resources for communication between some or all devices and equipment within its cell or area of service.
[0048] [0048] Thus, in a wireless communication network with programmed access to time-frequency resources and which has a cellular configuration, a P2P configuration and a mesh configuration, a programming entity and one or more entities subordinate companies can communicate with the use of programmed resources.
[0049] [0049] As noted above, a RAN can include a CU and DUs. An NR BS (for example, eNB, 5G Node B, Node B, receiving and transmitting point (TRP), or access point (AP)) can correspond to one or multiple BSs. NR cells can be configured as access cells (ACells) or data-only cells (DCells). For example, the RAN (for example, a central unit or distributed unit) can configure the cells. DCells can be cells used for carrier aggregation or dual connectivity, but not used for initial access, cell selection / reselection or automatic switching. In some cases, DCells may not transmit synchronization signals - in some cases, DCells may transmit SS. NR BSs can transmit downlink signals to UEs that indicate the cell type. Based on the cell type indication, the UE can communicate with NR BS. For example, the UE can determine NR BSs to consider for cell selection, access, automatic change (HO) and / or measurement based on the indicated cell type.
[0050] [0050] Figure 2 illustrates an example logical architecture of a distributed radio access network (RAN) 200, which can be deployed in the wireless communication system illustrated in Figure 1. A 5G access node 206 can include an access node controller (ANC) 202. The ANC can be a central unit (CU) of the distributed RAN 200. The backhaul interface to the next generation main network (NG-CN) 204 may end at the ANC. The backhaul interface for neighboring next generation access nodes (NG-ANs) may end at the ANC. The ANC may include one or more TRPs 208 (which may also be referred to as BSs NR BSs, NodeBs, 5G NBs, access point, or some other term). As described above, a TRP can be used interchangeably with “cell”.
[0051] [0051] TRPs 208 can be a DU. TRPs can be connected to an ANC (ANC 202) or more than one ANC (not shown). For example, for RAN sharing, radio as a service (RaaS) and service-specific AND facilities, TRP can be connected to more than one ANC. A TRP can include one or more antenna ports. TRPs can be configured to serve individually (for example, dynamic selection) or joint (for example, transmission in junction) traffic to a UE.
[0052] [0052] Local architecture 200 can be used to illustrate the definition of fronthaul. The architecture can be defined as supporting fronthaul solutions through different types of deployment. For example, the architecture may be based on transmission network capabilities (for example, bandwidth, latency and / or jitter).
[0053] [0053] The architecture can share characteristics and / or components with LTE. According to aspects, the next generation AN (NG-AN) 210 can support dual connectivity with NR. NG-AN can share a common fronthaul for LTE and NR. [0054] The architecture can enable cooperation between TRPs 208. For example, cooperation can be predefined within a TRP and / or through TRPs through ANC 202. According to aspects, no interface between TRP may be necessary and / or be present.
[0055] [0055] According to aspects, a dynamic configuration of divided logic functions may be present within the 200 architecture. As will be described in greater detail with reference to Figure 5, the layer of
[0056] [0056] Figure 3 illustrates an example physical architecture of a distributed RAN 300, according to aspects of the present disclosure. A centralized main network unit (C-CU) 302 can host main network functions. The C-CU can be installed centrally. C-CU functionality can be downloaded (for example, for advanced wireless services (AWS)), in an effort to handle peak capacity.
[0057] [0057] A centralized RAN unit (C-RU) 304 can host one or more ANC functions. Optionally, C-RU can host core network functions locally. C-RU may have a distributed deployment. The C-RU can be closer to the network edge.
[0058] [0058] A DU 306 can host one or more TRPs (edge node (EN), edge unit (EU), radio head (RH), smart radio head (SRH) or similar). DU can be located at the edges of the network with radio frequency (RF) functionality.
[0059] [0059] Figure 4 illustrates example components of BS 110 and UE 120 illustrated in Figure 1, which can be used to implement aspects of the present disclosure.
[0060] [0060] Figure 4 shows a block diagram of a project of a BS 110 and a UE 120, which can be one among the BSs and one among the UEs in Figure 1. For a more restricted association scenario, base station 110 can be the macro BS l110c in Figure 1, and UE 120 can be UE 120y. Base station 110 can also be a base station of some other type. Base station 110 can be equipped with antennas 434a to 434t, and UE 120 can be equipped with antennas 452a to 452r.
[0061] [0061] At base station 110, a transmission processor 420 can receive data from a data source 412 and control information from a controller / processor 440. The control information can be for the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Hybrid HARQ Physical Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), etc. Data can be for the Downlink Shared Physical Channel (PDSCH), etc. Processor 420 can process (e.g., encode and map symbols) the data and control information to obtain data symbols and control symbols, respectively. Processor 420 can also generate reference symbols, for example, for PSS, SSS and cell-specific reference signal. A multiple input and multiple output (MIMO) transmission processor (TX) 430 can perform spatial processing (eg, pre-coding) on data symbols, control symbols and / or reference symbols, if applicable. applicable, and can provide output symbol streams for 432a to 432t modulators (MODs). For example, the TX MIMO 430 processor can perform certain aspects described in the present document for RS multiplexing. Each 432 modulator can process a respective output symbol stream (for example, for OFDM, etc.) to obtain an output sample stream. Each modulator 432 can further process (for example, convert to analog, amplify, filter and convert upwardly) the output sample stream to obtain a downlink signal. Downlink signals from modulators 432a to 432t can be transmitted through antennas 434a to 434t, respectively.
[0062] [0062] At UE 120, antennas 452a to 452r can receive downlink signals from base station 110 and can provide received signals to demodulators (DEMODs) 454a to 454r, respectively. Each demodulator 454 can condition (e.g., filter, amplify, downwardly convert and digitize) a respective received signal to obtain input samples. Each demodulator 454 can further process the input samples (for example, for OFDM, etc.) to obtain received symbols. A MIMO 456 detector can obtain symbols received from all demodulators 454a through 454r, perform MIMO detection on received symbols, if applicable, and provide detected symbols. For example, the MIMO 456 detector can provide detected RS transmitted using the techniques described in this document. A receiving processor 458 can process (e.g., demodulate, deinterleave and decode) the detected symbols, provide decoded data to the UE 120 to a data collector 460 and provide decoded control information to a controller / processor 480.
[0063] [0063] On the uplink, on UE 120, a transmission processor 464 can receive and process data (for example, for the Uplink Shared Physical Channel (PUSCH)) from a 462 data source and control information ( for example, for the Physical Uplink Control Channel (PUCCH)) from controller / processor 480. transmission processor 464 can also generate reference symbols for a reference signal. The symbols from the 464 transmission processor can be pre-encoded by a TX MIMO 466 processor, if applicable further processed by demodulators 454a to 454r (eg for SC-FDM, etc.) and transmitted to the base station 110. In BS 110, uplink signals from UE 120 can be received by antennas 434, processed by modulators 432, detected by a MIMO detector 436, if applicable, and further processed by a receiving processor 438 to obtain control information and decoded data sent by UE 120. The receiving processor 438 can provide the decoded data to a data collector 439 and the decoded control information to the controller / processor 440.
[0064] [0064] Controllers / processors 440 and 480 can direct the operation on base station 110 and UE 120, respectively. The 440 processor and / or other processors and modules in the base station 110 can perform or direct, for example, the execution of the functional blocks illustrated in Figure 13 and / or other processes for the techniques described in this document. The 480 processor and / or other processors and modules in the UE 120 can also perform or direct processes to the techniques described in this document. Memories 442 and 482 can store data and program codes for BS 110 and UE 120, respectively. A programmer 444 can program UEs for data transmission on the downlink and / or uplink.
[0065] [0065] Figure 5 illustrates a diagram 500 showing examples for deploying a communications protocol stack, according to aspects of the present disclosure. The illustrated communications protocol stacks can be deployed by devices that operate on a 5G system (for example, a system that supports uplink based mobility). Diagram 500 illustrates a communications protocol stack that includes a Radio Resource Control (RRC) layer 510, a Packet Data Convergence Protocol (PDCP) layer 515, a Radio Link Control (RLC) layer ) 520, a 525 Media Access Control (MAC) layer and a Physical layer
[0066] [0066] A first option 505-a shows a split deployment of a protocol stack, where the deployment of the protocol stack is split between a centralized network access device (for example, an ANC 202 in Figure 2) and device distributed network access (for example, DU 208 in Figure 2). In the first option 505-a, a layer of RRC 510 and a layer of PDCP 515 can be implanted by the central unit, and a layer of RLC 520, a layer of MAC 525 and a layer PHY 530 can be implanted by the DU. In several examples, CU and DU can be colocalized or non-colocalized. The first option 505-a can be useful in a macrocell, microcell or picocell installation.
[0067] [0067] A second option 505-b shows a unified deployment of a protocol stack, in which the protocol stack is deployed on a single network access device (for example, access node (AN), base station of new radio (NR BS), a new radio B node (NR NB), a network node (NN) or similar). In the second option, the RRC 510 layer, the PDCP 515 layer, the RLC 520 layer, the MAC 525 layer and the PHY 530 layer can each be implanted by the AN. The second option 505-b can be useful in a femtocell implantation.
[0068] [0068] Regardless of whether a network access device deploys part or all of a protocol stack, a UE can deploy an entire 505-c protocol stack (e.g., RRC layer 510, PDCP layer 515, the RLC 520 layer, the MAC 525 layer and the PHY 530 layer).
[0069] [0069] Figure 6 is a diagram 600 showing an example of a centric subframe of DL. The centric DL subframe may include a control portion 602. The control portion 602 may exist in the initial or beginning portion of the DL centric subframe. The control portion 602 can include various programming information and / or control information that correspond to various portions of the DL centric subframe. In some configurations, the control portion 602 can be a physical DL control channel (PDCCH), as shown in Figure 6. The centric DL subframe can also include a DL 604 data portion. The DL data portion 604 can sometimes be referred to as the payload of the DL centric subframe. The DL 604 data portion may include the communication resources used to communicate DL data from the programming entity (for example, UE or BS) to the subordinate entity (for example, UE). In some configurations, the DL 604 data portion may be a DL shared physical channel (PDSCH).
[0070] [0070] The centric DL subframe can also include a portion of common UL 606. The portion of common UL 606 can sometimes be referred to as a continuous burst of UL, a continuous burst of common UL and / or several other suitable terms.
[0071] [0071] Figure 7 is a diagram 700 showing an example of a centric UL subframe. The UL centric subframe may include a control portion 702. The control portion 702 may exist in the initial or beginning portion of the UL centric subframe. The control portion 702 in Figure 7 can be similar to the control portion described above with reference to Figure 6. The centric UL subframe can also include a UL 704 data portion. The UL 704 data portion can sometimes be mentioned as the payload of the UL centric subframe. The UL portion can refer to the communication resources used to communicate UL data from the subordinate entity (for example, UE) to the programming entity (for example, UE or BS). In some configurations, control portion 702 may be a physical DL control channel (PDCCH).
[0072] [0072] As shown in Figure 7, the end of the control portion 702 can be separated in time from the beginning of the UL 704 data portion. This time separation can sometimes be referred to as an interval, protection period, protection interval and / or several other suitable terms. This separation provides time for switching from DL communication (for example, receiving operation through the programming entity) to UL communication (for example, transmission through the programming entity). The centric UL subframe can also include a portion of common UL
[0073] [0073] In some circumstances, two or more subordinate entities (for example, UEs) can communicate with each other using secondary link signals. The real-world applications of such secondary link communications may include public security, proximity services, EU-to-network relay, vehicle-to-vehicle (V2V) communications, Internet of Everything (IOE) communications, IoT communications , critical mesh and / or several other suitable applications. In general, a secondary link signal can refer to a signal communicated from a subordinate entity (for example, UE1l) to another subordinate entity (for example, UE2) without relaying that communication through the programming entity (for example , UE or BS), although the programming entity can be used for programming and / or control purposes. In some examples, secondary link signals can be communicated using a licensed spectrum (different from wireless local area networks, which typically use an unlicensed spectrum).
[0074] [0074] An UE can operate in several radio resource configurations, which include a configuration associated with the transmission of pilots using a dedicated set of resources (for example, a dedicated radio resource control state (RRC), etc.) or a configuration associated with the transmission of pilots using a common set of resources (for example, a common RRC state, etc.). By operating in the dedicated RRC state, the UE can select a dedicated set of resources to transmit a pilot signal to a network.
[0075] [0075] In NR, a UE can be served by one or more BSs or TRPs using single or multiple beams, as shown in Figure 8. Figure 8 shows an exemplary 800 wireless communication system in which an UE 802 is being serviced by a TRP 810 using a 820 transmission beam. A receiving beam 830 from the UE is generally aligned with the 820 transmission beam. The TRP (or, for example, a BS) may have ability to communicate over one or more 822a-822f transmission beams. Similarly, the UE may be able to communicate through one or more other receiving beams 832a-832d. Each BS 820, 822 transmission beam can be colocalized with a BS receiving beam. Similarly, each receiving beam 830, 832 of the UE can be colocalized with a transmission beam of the UE. ALMOST-PLACEMENT ASSUMPTIONS EXEMPLIFIERS FOR INFORMATION REFERENCE SIGNS APERIODIC CHANNEL STATUS
[0076] [0076] Multiple beam operation is a feature of NR wireless communication systems, and some aspects of multiple beam operations have been specified in network communications standards. Among these specified operations are the use of transmission configuration indication (TCI) states that have been specified to indicate quasi-colocalization states (QCL) (that is, states that indicate which antenna ports are used for transmitting radio signals). reference signals, such as demodulation reference signals (DM-RS) and CSI-RS) for downlink shared physical channel beams (PDSCH) (for example, transmission beams used by a BS to transmit a PDSCH and receive beams used by an UE to receive the PDSCH).
[0077] [0077] In aspects of the present disclosure, downlink control (DCI) information can signal the TCI state, and a receiving UE used the TCI state to derive a QCL relationship for the PDSCH beams. That is, a UE can receive a DCI that includes a grant for a PDSCH and indicates a TCI state, and the UE can determine which RES in the granted resources contain RSs, based on the indicated TCI state.
[0078] [0078] According to the aspects of the present disclosure, a delay can be specified between a downlink concession (DL) of transmission resources (for example, in a DCI that can be transported in a PDCCH) and the data transmission corresponding DL (for example, a PDSCH transmitted via the granted transmission resources), to allow the receiving UE sufficient time to switch (receive) its beam (for example, from a receive beam previously used to receive transmissions from the BS).
[0079] [0079] In previously known techniques, the behavior of the UE during the reception of a downlink transmission is not defined when the delay (also mentioned in this document as a deviation parameter) is not determined (ie, by the UE). UE can initiate the receipt of a DL transmission when the delay is not determined in certain cases, when a DCI schedules the DL transmission to occur shortly after the DCI transmission, so that the UE is still decoding a control channel that carries the DCI and a corresponding TCI when the DL transmission starts.
[0080] [0080] In the aspects of the present disclosure, The behavior of the UE when the delay (ie the delay between the receipt of a transmission resource concession and the receipt of the corresponding DL transmission) is less than a threshold (for example , a threshold value, such as a limitation on the UE's ability to quickly switch beams, which may be inherent in the UE) is also specified.
[0081] [0081] In accordance with aspects of the present disclosure, aperiodic channel status information reference signals (CSI-RS) are also a feature of NR wireless communication systems. The use of aperiodic CSI-RS (AP) (CSI-RS AP) includes both the triggering of the aperiodic CSI-RS transmission (for example, through a BS) and the channel status information (CSI) report by by means of a device (for example, a UE) based on CSI-RS processing.
[0082] [0082] In the aspects of the present disclosure, techniques are provided to determine a QCL ratio of AP CSI-RS when the AP CSI-RS is multiplexed by frequency division (FDM) and / or multiplexed by time division (TDM) with a PDSCH.
[0083] [0083] According to the aspects of the present disclosure, if a UE is configured with the upper layer parameter TCI-PresentlInDCI set to “Enabled” for the set of control resources (CORESET) that programs a PDSCH (that is, the CORESET in which a PDCCH programming the PDSCH is transmitted), then the UE assumes that the transmission configuration information (TCI) field is present in the DL DCI of a PDCCH transmitted in CORESET. The UE uses the TCI-States, which can be configured in the UE (for example, in RRC signaling) according to the value of the transmission configuration indication field in the detected PDCCH DCI to determine the quasi-colocalization of the gateway. PDSCH antenna (ie, to determine REs that contain RSs).
[0084] [0084] In the aspects of this disclosure, if a UE is configured with TCI-PresentInDCI set to “Disabled” for the CORESET that programs the PDSCH (that is, the CORESET in which the PDCCH that programs the PDSCH is transmitted), then, to determine the quasi-colocalization of the PDSCH antenna port, the UE assumes that the TCI state for the PDSCH is identical to the TCI state applied to the CORESET used for the corresponding PDCCH transmission.
[0085] [0085] According to the aspects of the present disclosure, the UE can assume that the antenna ports of a DM-RS port group of a PDSCH transmitted by a server cell are quasi-colocalized with the RS (s) in the set of RS in relation to the QCL type parameter (or parameters) given by the indicated TCI status, if the deviation between the receipt of the DL DCI (which grants transmission resources to a PDSCH for the UE) and the corresponding PDSCH (ie , the PDSCH transmitted in the resources granted in the DL DCI) is equal to or greater than a Threshold-Sched-Offset threshold.
[0086] [0086] In the aspects of the present disclosure, both for the case when TCI-PresentlnDCI = “Enabled” and for the case when TCI-PresentlInDCI = “Disabled”, if the deviation is less than a threshold (for example, a threshold value ), then, the UE can assume that the antenna ports of a group of PDSCH DM-RS ports of a server cell are quasi-colocalized based on the TCI status used for the CORESET PDCCH quasi-colocalization indication -Lower ID in the last slot in which one or more CORESETs are configured for the UE. That is, if the deviation is less than the threshold, the UE can assume that the QCL ratio of the PDSCH is equal to the QCL ratio of a CORESET PDCCH that has a smaller identifier (CORESET-ID).
[0087] [0087] According to the aspects of the present disclosure, a PDCCH can carry the deviation value, k0O, to a UE, but decoding the PDCCH takes some time. Thus, it is desirable to specify the behavior of the UE when the deviation is not yet known to the UE (for example, the UE is receiving a PDSCH programmed by the PDCCH in the same transmission time interval as the UE received the PDCCH).
[0088] [0088] In the aspects of the present disclosure, for the case when TCI-PresentlInDCI = "Enabled" and the case when TCI-Presentl1nDCI = "Disabled", if the deviation is still to be determined or is less than a threshold, then the UE may assume that the antenna ports of a DM-RS port group of a PDSCH of a server cell are quasi-colocalized based on the TCI state used for the indication of PDCCH quasi-colocalization of the smaller CORESET-ID in the last slot in which one or more CORESETs are configured for the UE. That is, if the deviation has yet to be determined or is less than the threshold, the UE can assume that the QCL ratio of the PDSCH is equal to the QCL ratio of a CORESET PDCCH that has a smaller identifier (CORESET-ID) .
[0089] [0089] It is desirable to specify a QCL to CSI-RS aperiodic relationship for cases similar to those described above in relation to the PDSCH. That is, it is desirable to specify a presumption related to the QCL relationship for aperiodic CSI-RS and another transmission (for example, a physical channel, such as a PDSCH) that a receiving UE can perform for cases when the UE is receiving the other transmission, while the UE has not determined the delay (ie the delay between the receipt of a concession of transmission resources for another transmission and the receipt of the other transmission).
[0090] [0090] Figure 9 illustrates example operations 900 for wireless communications, in accordance with aspects of the present disclosure. Operations 900 can be performed by a UE, for example, UE 120, shown in Figure 1 and UE 802, shown in Figure 8.
[0091] [0091] Operations 900 begin, in block 902, with the UE which determines a quasi-colocalization relationship (QCL) of an aperiodic channel state information reference signal (CSI) (CSI-RS) with a physical channel . For example, UE 802 (shown in Figure 8) can determine a QCL ratio of an aperiodic CSI-RS to a physical channel. In the example, both the aperiodic CSI-RS and the physical channel are transmitted by the TRP 810.
[0092] [0092] In block 904, operations 900 continue with the UE that processes the CSI-RS aperiodic according to the determined QCL ratio. Continuing the example, UE 802 processes the aperiodic CSI-RS (for example, measures CSI-RS and determines CSI) according to the QCL ratio determined (through the UE) in block 902.
[0093] [0093] Figure 10 illustrates exemplary operations 1000 for wireless communications, in accordance with aspects of the present disclosure. Operations 1000 can be performed by a BS (for example, an NB), for example, BS 110, shown in Figure 1, and TRP 810, shown in Figure 8. Operations 1000 can be complementary to operations 900, described above with reference to Figure 9.
[0094] [0094] Operations 1000 begin, in block 1002 with the BS which determines a quasi-colocalization relationship (QCL) of an aperiodic channel state information reference signal (CSI) (CSI-RS) with a physical channel. For example, TRP 810 (shown in Figure 8) can determine a QCL ratio of an aperiodic CSI-RS to a physical channel. In the example, both the aperiodic CSI-RS and the physical channel are transmitted by the TRP 810.
[0095] [0095] In block 1004, operations 1000 continue with the BS which transmits the aperiodic CSI-RS according to the determined QCL ratio. Continuing the example, the TRP 810 transmits the aperiodic CSI-RS according to the determined QCL ratio (through the BS) in block 1002.
[0096] [0096] Figure 11 illustrates an exemplary transmission timeline 1100, in accordance with aspects of the present disclosure. Transmissions over a BS (for example, BS 110 shown in Figure 1 or TRP 810 shown in Figure 8) are shown in 1102, while the receiving beam behavior via a UE is shown in
[0097] [0097] According to the aspects of the present disclosure, if a deviation (for example, k0) between an aperiodic CSI-RS and a DL DCI indicating the aperiodic CSI-RS is not yet determined or is less than a threshold ( for example,
[0098] [0098] In the aspects of the present disclosure, if a deviation between a DL control channel carrying a DCI that indicates an aperiodic CSI-RS and the aperiodic CSI-RS is not yet determined or is less than a threshold, then the CSI-RS aperiodic on a set of time and / or frequency resources can use a QCL ratio determined based on a previous explicit QCL indication (for example, a previous lease for another transmission) on the time and / resources or frequency. That is, if a UE receives a control channel with a DCI that indicates that an aperiodic CSI-RS will be transmitted in a set of frequency resources and the UE has not determined a deviation parameter or the deviation parameter is greater than a deviation (that is, a period) between the receipt of the DCI and the transmission of the aperiodic CSI-RS, then the UE can receive the aperiodic CSI-RS using a QCL indicated in a previous concession for a link channel descending (that is, another transmission, such as a PDSCH, another aperiodic CSI-RS programmed with a larger deviation, a periodic CSI-RS or a semi-persistent CSI-RS) in those frequency resources. Or, if there is no explicit QCL indication, the aperiodic CSI-RS can be received by a UE using the QCL for another transmission beam (for example, a unicast PDSCH) that is multiplexed by splitting. frequency and / or time with an aperiodic CSI-RS in the slot or mini-slot.
[0099] [0099] According to the aspects of this disclosure, an explicit QCL indication can be carried in a concession (for example, a concession for another transmission). For example, the first DCI (transmitted in CORESET 1108) that programs PDSCH 1116 shown in Figure 11 can carry an explicit QCL indication. This explicit statement can indicate a rate-matching bitmap and specify a QCL ratio for resource elements (REs) that are rate-matched around the PDSCH, and the QCL ratio for rate-matched REs may differ from the QCL ratio for the PDSCH.
[0100] [0100] In currently known NR techniques, no QCL ratio is specified for REs that must be subjected to rate matching around the PDSCH.
[0101] [0101] According to the aspects of this disclosure, when there is no QCL relationship for fee-matched REs (for example, ERs from an aperiodic fee-matched CSI-RS with a PDSCH) indicated in a concession, then , an aperiodic CSI-RS in REs with rate matching can be transmitted by a BS (and processed by a UE) using the QCL ratio indicated for the transmission with which REs are submitted for rate matching (for example , a PDSCH).
[0102] [0102] In the aspects of the present disclosure, when there is a QCL ratio for the rate-matched REs in a concession, then an aperiodic CSI-RS in the rate-matched REs can be transmitted by a BS (and processed by a UE) using the QCL ratio indicated in the concession for REs with rate matching. For example, an aperiodic CSI-RS can be multiplexed by time division with a PDSCH, and the CSI-RS can be indicated to use a different beam with a different QCL ratio than the PDSCH. That is, BS can transmit a physical channel (for example, a PDSCH) using a first aperture QOCL and CSI-RS relationship, in REs with rate matching with the physical channel, using a second relationship of QCL.
[0103] [0103] According to the aspects of the present disclosure, an uplink transmission (for example, an uplink shared physical channel (PUSCH)) can be rate matched around some time and frequency resources whose relationship of QCL is indicated in a concession that schedules the uplink transmission. The UE that transmits the uplink transmission can then be triggered to transmit aperiodic polling reference signals (SRS) on those rate-matched resources, and the UE transmits the aperiodic SRS on the rate-matched resources using the QCL ratio indicated in the concession, which may be different from a QCL indicated for the uplink transmission.
[0104] [0104] In aspects of the present disclosure, a UE can be triggered to transmit aperiodic SRS over a set of time and frequency resources that the UE has been granted for the transmission of an uplink transmission (for example, a PUSCH). If a deviation between a DCI that triggers the aperiodic SRS and the aperiodic SRS is less than a threshold, then the UE can use a standard configured UL beam (for example, a beam configured through RRC signaling), or use a UL beam associated with ("a UL beam associated with" means a UL transmission beam derived from a DL beam used to receive the PDCCH) a CORESET that has a smaller CORESET-ID.
[0105] [0105] Figure 12 illustrates example operations 1200 for wireless communications, in accordance with aspects of the present disclosure. Operations 1200 can be performed by a BS (for example, an NB), for example, BS 110, shown in Figure 11, and TRP 810, shown in Figure 8.
[0106] [0106] Operations 1200 begin, in block 1202 with the BS which determines a quasi-colocalization ratio (QCL) of an aperiodic polling reference signal
[0107] [0107] In block 1204, operations 1200 continue with the BS that processes the aperiodic SRS according to the determined QCL ratio. Continuing the example, the TRP 810 processes the aperiodic SRS according to the QCL ratio determined (by the TRP) in block 902.
[0108] [0108] Figure 13 illustrates exemplary 1300 operations for wireless communications, in accordance with aspects of the present disclosure. Operations 1300 can be performed by a UE, for example, UE 120, shown in Figure 11 and UE 802, shown in Figure 8. Operations 1000 can be complementary to operations 1200, described above with reference to Figure 12.
[0109] [0109] Operations 1300 begin, in block 1302 with the EU which determines a quasi-colocalization relationship (OCL) of an aperiodic polling reference signal (SRS) with a physical channel. For example, UE 802 (shown in Figure 8) can determine a QCL relationship between an aperiodic SRS and a physical channel. In the example, the aperiodic SRS is transmitted by UE 802, and the physical channel can be transmitted by TRP 810 or UE 802.
[0110] [0110] In block 1304, operations 1300 continue with the UE that transmits the aperiodic SRS according to the determined QCL ratio. Continuing the example, UE 802 transmits the aperiodic SRS according to the QCL ratio determined (through the UE) in block 1302.
[0111] [0111] The methods disclosed in this document comprise one or more steps or actions to achieve the The described method. The steps and / or actions of the method can be interchanged with each other without departing from the scope of the claims. In other words, unless a specific order of steps and actions is specified, the order and / or use of specific steps and / or actions can be modified without departing from the scope of the claims.
[0112] [0112] As used in this document, a phrase that refers to “at least one of” a list of items refers to any combination of such items, including unique members. As an example, “at least one of: a, b or Cc” is intended to cover a, b, c, ab, a- c, bc and abc, as well as any combination with multiples of the same element (for example, aa , aaa, aab, aac, abb, acc, bb, bbb, bbc, cre and crce-e or any other order of a, b and cc).
[0113] [0113] As used herein, the term “determine” covers a wide variety of actions. For example, "determine" may include calculating, computing, processing, deriving, investigating, querying (for example, querying in a table, a database or other data structure), ascertaining and the like. In addition, "determining" may include receiving (for example, receiving information), accessing (for example, accessing data in a memory) and the like. In addition, "determining" may include resolving, selecting, choosing, establishing and the like.
[0114] [0114] The previous description is provided to enable any person versed in the technique 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 in this document can be applied to other aspects. Thus, the claims are not intended to be limited to the aspects shown in this document, but should be attributed to the full scope consistent with the language of the claims, where the reference to an element in the singular is not intended to mean “one and only one ”except where specifically stated, but preferably“ one or more ”. Except where specifically stated otherwise, the term "some" refers to one or more. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later will be known by the elements of common knowledge in the art are expressly "incorporated into this reference document and are intended to be covered by the claims. nothing disclosed in this document is intended to be dedicated to the public regardless of whether such disclosure is explicitly cited in the claims. No claim element shall be construed under the provisions of Title 35 of the United States Code Ss112, sixth paragraph, except where the element it is expressly quoted using the phrase "means to" or, in the case of a method claim, the element is quoted using the phrase "step to".
[0115] [0115] The various method operations described above can be performed by any suitable means capable of carrying out the corresponding functions. The means may include various components and / or modules of hardware and / or software, including, but not limited to, a circuit, an application specific integrated circuit (ASIC) or a processor. In general, where there are operations illustrated in the Figures, these operations may have components of means plus corresponding counterpart function with similar numbering.
[0116] [0116] For example, the means for transmitting, means for processing and / or means for receiving can comprise one or more of a transmission processor 420, a TX MIMO processor 430, a receiving processor 438, or antenna (or antennas) 434 of base station 110 and / or transmission processor 464, a TX MIMO processor 466, a receiving processor 458 or antenna (or antennas) 452 of user equipment 120. Additionally, the means to generate, means to multiplex, means for determining, means for processing and / or means for applying may comprise one or more processors, such as controller / processor 440 of base station 110 and / or controller / processor 480 of user equipment 120.
[0117] [0117] The various logic blocks, modules and illustrative circuits described in connection with the present disclosure can be implemented or carried out with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device (PLD), transistor or discrete gate logic, discrete hardware components or any combination thereof designed to perform the functions described in this document. A general purpose processor can be a microprocessor, however, alternatively, the processor can be any commercially available processor, microcontroller controller or state machine. A processor can also be deployed as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core or any other such configuration.
[0118] [0118] If deployed on hardware, an exemplary hardware configuration can comprise a wireless node processing system. The processing system can be deployed with a bus architecture. The bus can include any number of interlaced buses and bridges depending on the specific application of the processing system and the general design restrictions. The bus can connect multiple circuits that include a processor, machine-readable media and a bus interface. The bus interface can be used to connect a network adapter, among other things, to the processing system via the bus. The network adapter can be used to implement the PHY layer signal processing functions. In the case of a 120 user terminal (see Figure 1), a user interface (for example, keyboard, display, mouse, joystick, etc.) can also be connected to the bus. The bus can also connect other circuits such as timing sources, peripherals, voltage regulators, power management circuits and the like, which are well known in the art and therefore will not be described further. The processor can be deployed with one or more general purpose and / or special purpose processors. examples include microprocessors, microcontrollers, DSP processors and other circuitry that can run software. Those skilled in the art will recognize how to best deploy the functionality described for the processing system depending on the particular application and the general design restrictions imposed on the general system.
[0119] [0119] If implemented in software, functions can be stored or transmitted as one or more instructions or codes on computer-readable media. The software must be interpreted widely to refer to instructions, data or any combination thereof, whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise. Computer-readable media includes both computer storage media and communication media that include any media that facilitates the transfer of a computer program from one location to another. The processor may be responsible for managing the bus and overall processing, including running software modules stored on machine-readable storage media. Computer-readable storage media can be attached to a processor, so that the processor can read the information from, and write the information to, the storage media. Alternatively, the storage media can be an integral part of the processor. For example, machine-readable media can include a transmission line, a data wave modulated carrier and / or a computer-readable storage media with instructions stored on it separate from the wireless node, where all can be accessed by the processor through the bus interface. Alternatively or in addition, machine-readable media, or any portion thereof, can be integrated into the processor, as may be the case with cache and / or general log files. Examples of machine-readable storage media may include RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (memory only). programmable and erasable read), EEPROM (electronically erasable and programmable read only memory), registers, magnetic disks, optical disks, hard disks or any other suitable storage media or any combination thereof. Machine-readable media can be incorporated into a computer program product.
[0120] [0120] A software module can comprise a single instruction or many instructions, and can be distributed across several different code segments, between different programs and across multiple storage media. Computer-readable media can comprise numerous software modules. the software modules include instructions that, when executed by a device such as a processor, cause the processing system to perform various functions. Software modules can include a transmit module and a receive module. Each software module can reside on a single storage device or be distributed across multiple storage devices. For example, a software module can be loaded into RAM from a hard drive when a trigger event occurs. During the execution of the software module, the processor can load some of the cached instructions to increase the access speed. One or more lines of cache can then be loaded into a general log file for execution by the processor. By referring to the functionality of a software module below, it will be understood that such functionality is implemented by the processor by executing instructions from that software module.
[0121] [0121] In addition, any connection is properly referred to as computer-readable media. For example, if the software is transmitted from a website, a server or another remote source using a coaxial cable, a fiber optic cable, a twisted pair, a digital subscriber line (DSL) or wireless technologies like infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies like infrared (IR), radio and microwave are included in the definition from media. Magnetic disk and optical disk, as used in this document, include compact disk (CD), laser disk, optical disk, digital versatile disk (DVD), floppy disk and Blu-rayO disk, where magnetic disks generally reproduce data magnetic, while optical discs reproduce data optically with lasers. Thus, in some respects, computer-readable media may comprise non-transitory computer-readable media (for example, tangible media). In addition, for other aspects, computer-readable media may comprise transitory computer-readable media (for example, a signal). The aforementioned combinations must also fall within the scope of computer-readable media.
[0122] [0122] Thus, certain aspects may comprise a computer program product to perform the operations presented in this document. For example, such a computer program product may comprise a computer-readable medium that has instructions stored (and / or encoded) in them, where the instructions are executable by one or more processors to perform the operations described in this document. For example, instructions can include instructions for performing the operations described in this document and illustrated in Figures 9 to 10.
[0123] [0123] Additionally, it should be noted that the modules and / or other appropriate means to carry out the methods and techniques described in this document can be downloaded and / or, otherwise, obtained by a user terminal and / or base station, as applicable. For example, such a device can be coupled to a server to facilitate the transfer of means to carry out the methods described in this document. Alternatively, various methods described in this document can be provided through storage media (for example, RAM, ROM, physical storage media such as a compact disc (CD) or a floppy disk, etc.), so that a user and / or base station can obtain the various methods by coupling or supplying the storage media to the device. In addition, any other technique suitable for providing the methods and techniques described in this document for a device may be used.
[0124] [0124] It should be understood that the claims are not limited to the precise configuration and components illustrated above. Various modifications, alterations and variations can be made in the arrangement, operation and details of the methods and apparatus described above without departing from the scope of the claims.

权利要求:
Claims (30)
[1]
1. Method for wireless communications by means of a user equipment (UE) comprising: determining a quasi-colocalization ratio (QCL) of an aperiodic channel state information reference signal (CSI) (CSI-RS) and a physical channel; and processing the aperiodic CSI-RS according to the determined QCL ratio.
[2]
2. Method, according to claim 1, in which the determination of the QCL relation is based on: a deviation parameter related to the aperiodic CSI-RS and downlink control information (DCI) that program the aperiodic CSI-RS , and a threshold value.
[3]
3. Method according to claim 2, in which the determination of the QCL ratio comprises determining the use of a QCL relationship of a downlink control physical channel (PDCCH) of a set of control resources (CORESET) which has a smaller identifier (CORESET-ID), when the deviation parameter is not yet determined by the UE.
[4]
4, Method according to claim 2, in which the determination of the QCL ratio comprises determining the use of a QCL relationship of a downlink control physical channel (PDCCH) of a set of control resources (CORESET) which has a smaller identifier (CORESET-ID), when the deviation parameter is less than the threshold.
[5]
5. Method according to claim 2, in which the determination of the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time resources and frequency of another transmission, in which the resources of time and Frequencies granted include time and frequency resources of the aperiodic CSI-RS, when the deviation parameter is not yet determined by the UE.
[6]
6. Method according to claim 2, in which the determination of the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time resources and frequency of another transmission, in which the resources of time and Frequencies granted include time and frequency resources of the aperiodic CSI-RS, when the deviation parameter is less than the threshold.
[7]
7. Method according to claim 2, in which the determination of the QCL ratio comprises determining the use of a QCL relationship from a shared point-to-point downlink (PDSCH) physical channel in a set of time and frequency that include aperiodic CSI-RS time and frequency resources, when the deviation parameter is not yet determined by the UE.
[8]
8. The method of claim 2, wherein determining the QCL relationship comprises determining the use of a QCL relationship from a shared point-to-point downlink (PDSCH) physical channel in a set of time and frequency that include time and frequency resources of the aperiodic CSI-RS, when the deviation parameter is less than the threshold.
[9]
9. The method of claim 1, wherein determining the QCL ratio comprises: determining the QCL ratio based on a QCL ratio for rate-matched resource elements (REs) indicated in a concession for a downlink data channel, in which the aperiodic CSI-RS processing comprises processing the aperiodic CSI-RS in the REs with rate matching.
[10]
10. A method for wireless communications via a base station (BS) comprising: determining a quasi-colocalization ratio (QCL) of an aperiodic channel state information reference signal (CSI) (CSI-RS) with a physical channel; and transmit the aperiodic CSI-RS according to the determined QCL ratio.
[11]
11. Method, according to claim 10, in which the determination of the QCL relationship is based on: an offset parameter related to the aperiodic CSI-RS and downlink control information (DCI) that program the aperiodic CSI-RS , and a threshold value.
[12]
12. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a downlink control physical channel (PDCCH) of set of control resources (CORESET) that it has a smaller identifier (CORESET ID), when the deviation parameter is not yet determined.
[13]
13. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a physical downlink control channel (PDCCH) from the control resource set (CORESET) that has a smaller identifier (CORESET ID), when the deviation parameter is less than the threshold.
[14]
14. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Frequencies granted include time and frequency resources of the aperiodic CSI-RS, when the deviation parameter is not yet determined.
[15]
15. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Granted frequencies include aperiodic CSI-RS time and frequency resources, when the displacement parameter is less than the threshold.
[16]
16. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL relationship from a shared point-to-point downlink (PDSCH) physical channel in a set of time and frequency that include aperiodic CSI-RS time and frequency resources, when the deviation parameter is not yet determined.
[17]
17. The method of claim 11, wherein determining the QCL ratio comprises determining the use of a QCL relationship from a shared point-to-point downlink (PDSCH) physical channel in a set of time and frequency that include aperiodic CSI-RS time and frequency resources, when the displacement parameter is less than the threshold.
[18]
18. The method of claim 10, wherein determining the QCL ratio comprises determining the QCL relationship based on a QCL relationship for resource elements (REs) with rate matching with the physical channel, and the The method additionally comprises: transmitting the physical channel according to another QCL interface.
[19]
19. A method for wireless communications through a base station (BS) comprising: determining a quasi-colocalization relationship (QCL) of an aperiodic polling reference signal (SRS) with a physical channel; and processing the aperiodic SRS according to the determined QCL ratio.
[20]
20. Method according to claim 19, in which the determination of the QCL ratio is based on: a deviation parameter related to the aperiodic SRS and downlink control information (DCI) that program the aperiodic SRS and a threshold value .
[21]
21. The method of claim 20, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a physical downlink control channel (PDCCH) from the set of control resources (CORESET) that it has a smaller identifier (CORESET-ID), when the deviation parameter is not yet determined.
[22]
22. The method of claim 20, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a physical downlink control channel (PDCCH) from the set of control resources (CORESET) that it has a smaller identifier (CORESET-ID), when the deviation parameter is less than the threshold.
[23]
23. The method of claim 20, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Frequencies granted include time and frequency resources of the aperiodic SRS, when the deviation parameter is not yet determined.
[24]
24. The method of claim 20, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Granted frequency includes time and frequency resources of the aperiodic SRS, when the deviation parameter is less than the threshold.
[25]
25. Method for wireless communications by means of a user equipment (UE) comprising: determining a quasi-colocalization relationship (QCL) of an aperiodic polling reference signal (SRS) with a physical channel; and transmitting the aperiodic SRS according to the determined QCL ratio.
[26]
26. Method according to claim 25, in which the determination of the QCL ratio is based on: an offset parameter related to the aperiodic SRS and downlink control information (DCI) that program the aperiodic SRS and a threshold value .
[27]
27. The method of claim 26, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a physical downlink control channel (PDCCH) from the set of control resources (CORESET) that it has a smaller identifier (CORESET-ID), when the deviation parameter is not yet determined by the UE.
[28]
28. The method of claim 26, wherein determining the QCL ratio comprises determining the use of a QCL ratio of a physical downlink control channel (PDCCH) from the set of control resources (CORESET) that it has a smaller identifier (CORESET-ID), when the displacement parameter is less than the threshold.
[29]
29. The method of claim 26, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Frequencies granted include time and frequency resources of the aperiodic SRS, when the deviation parameter is not yet determined by the UE.
[30]
30. The method of claim 26, wherein determining the QCL ratio comprises determining the use of a QCL ratio indicated in a grant of time and frequency resources from another transmission, in which the resources of time and Granted frequency includes time and frequency resources of the aperiodic SRS, when the displacement parameter is less than the threshold.

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公开号 | 公开日

US11239893B2|2022-02-01|

WO2019147631A1|2019-08-01|

SG11202005697UA|2020-08-28|

CN111656725A|2020-09-11|

EP3744040A1|2020-12-02|

AU2019212127A1|2020-07-16|

TW201933809A|2019-08-16|

JP2021511762A|2021-05-06|

KR20200108850A|2020-09-21|

US20190229792A1|2019-07-25|

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法律状态:
2021-12-07| B350| Update of information on the portal [chapter 15.35 patent gazette]|

优先权:

申请号 | 申请日 | 专利标题

US201862621536P| true| 2018-01-24|2018-01-24|

US62/621,536|2018-01-24|

US16/253,642|US11239893B2|2018-01-24|2019-01-22|Quasi co-location assumptions for aperiodic channel state information reference signal triggers|

US16/253,642|2019-01-22|

PCT/US2019/014694|WO2019147631A1|2018-01-24|2019-01-23|Quasi co-location assumptions for aperiodic channel state information reference signal triggers|

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