Method and apparatus for multi-TRP beam measurement and reporting

Abstract

Methods and systems for beam measurement and reporting for multiple transmit / receive points (TRPs). The method includes receiving configuration information, the configuration information including a channel measurement resource (CMR) of a first TRP and a channel measurement resource (CMR) of a second TRP. The method further includes determining a beam measurement of the first TRP and a beam measurement of the second TRP based on the CMR of the first TRP and the CMR of the second TRP, respectively. The method also includes reporting a beam measurement of the first TRP and a beam measurement of the second TRP.

Description

Cross-references to related applications

[0001] This application claims priority to U.S. Provisional Patent Application No. 63 / 135,028, filed January 8, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communications, and more specifically, to a wireless communication system, method, and apparatus. Background Technology

[0003] The rapid development of computing technology has created greater demand for data communication. This ever-increasing demand, in turn, has driven further development in communication technologies, including beam communication and operation. New radio (NR) or 5th generation (5G) communication systems support beam measurement and reporting based on reference signal received power (RSRP) and signal-to-interference-noise ratio (SINR). However, current beam measurement and reporting methods cannot effectively support transmission from multiple transmission / reception points (TRPs). Using current methods, the system cannot select a suitable transmission (Tx) beam to simultaneously transmit physical downlink control channels (PDSCH) from multiple TRPs. Summary of the Invention

[0004] In some respects, the technology described herein relates to a method comprising: receiving configuration information from a next-generation node B (gNB) at a user equipment (UE), wherein the gNB includes a first transmit / receive point (TRP) and a second TRP, and wherein the configuration information includes: (1) a first set of channel state information reference signal (CSI-RS) resources or synchronization signal physical broadcast channel of the first TRP as channel measurement resource (CMR) for measuring the transmit (Tx) beam of the first TRP. (2) The second set of CSI-RS resources or SS / PBCH blocks as the CMR of the second TRP for measuring the Tx beam of the second TRP; the gNB requests the UE to report the beam measurement of the first TRP and the beam measurement of the second TRP; the UE determines the beam measurement of the first TRP based on the CMR of the first TRP; the UE determines the beam measurement of the second TRP based on the CMR of the second TRP; the UE reports the beam measurement of the first TRP and the beam measurement of the second TRP to the gNB.

[0005] In some aspects, the technology described herein relates to an apparatus for a user equipment (UE) comprising: a memory; a processor coupled to the memory and configured to: receive configuration information from a next-generation node B (gNB), wherein the gNB includes a first transmit / receive point (TRP) and a second TRP, and wherein the configuration information includes: (1) a first set of channel state information reference signal (CSI-RS) resources or synchronization signal physical broadcast channel (SS / PBCH) blocks as channel measurement resources (CMR) of the first TRP for measuring the transmit (Tx) beam of the first TRP; (2) a second set of CSI-RS resources or SS / PBCH blocks as CMR of the second TRP for measuring the Tx beam of the second TRP; receiving from the gNB a request to report beam measurements of the first TRP and the second TRP; determining the beam measurements of the first TRP based on the CMR of the first TRP; determining the beam measurements of the second TRP based on the CMR of the second TRP; and reporting the beam measurements of the first TRP and the second TRP to the gNB.

[0006] In some aspects, the technology described herein relates to a user equipment (UE) executable method comprising: receiving configuration information from a next-generation node B (gNB), wherein the gNB includes a first transmit / receive point (TRP) and a second TRP, wherein the configuration information includes: (1) a first set of channel state information reference signal (CSI-RS) resources or synchronization signal physical broadcast channel (SS / PBCH) blocks as channel measurement resources (CMR) of the first TRP for measuring the transmit (Tx) beam of the first TRP; (2) a second set of CSI-RS resources or SS / PBCH blocks as CMR of the second TRP for measuring the Tx beam of the second TRP; receiving from the gNB a request to report beam measurements of the first TRP and the second TRP; determining the beam measurements of the first TRP based on the CMR of the first TRP; determining the beam measurements of the second TRP based on the CMR of the second TRP; and reporting the beam measurements of the first TRP and the second TRP to the gNB. Attached Figure Description

[0007] To more clearly describe the technical solutions in the embodiments of this disclosure, a brief description is provided below in conjunction with the accompanying drawings. The drawings only illustrate certain aspects or embodiments of this disclosure, and those skilled in the art can obtain other drawings from these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of a wireless communication system according to one or more embodiments of the present disclosure.

[0009] Figure 2 This is a flowchart of a method according to one or more embodiments of the present disclosure.

[0010] Figure 3 This is a flowchart of a method according to one or more embodiments of the present disclosure.

[0011] Figure 4 This is a schematic block diagram of a terminal device according to one or more embodiments of the present disclosure. Detailed Implementation

[0012] NR / 5G systems can support beam measurement and reporting based on Layer 1 RSRP (L1-RSRP) and Layer 1 SINR (L1-SINR). For L1-RSRP-based beam reporting, a User Equipment (UE) can configure up to 64 Channel State Information Reference Signal (CSI-RS) resources or Synchronization Signal Physical Broadcast Channel (SS / PBCH) blocks for L1-RSRP measurements. The UE can select up to four CSI-RS resources or SS / PBCH blocks from these configured resources and then report the indicator of the selected CSI-RS resources or SS / PBCH blocks along with the corresponding L1-RSRP measurement results to the Next Generation Base Station (gNB). Group-based L1-RSRP beam reporting is also supported, where the UE can configure resource settings for channel measurements that contain a set of non-zero-power (NZP) CSI-RS resources or SS / PBCH blocks. Each NZP CSI-RS resource or SS / PBCH block can be used to represent a gNB transmit beam. The UE can be used to measure the L1-RSRP of those NZP CSI-RS resources or SS / PBCH blocks. The UE can then report two CSI-RS resource indicators (CRI) or SS / PBCH block resource indicators (SSBRI) for two selected NZP CSI-RS resources or SS / PBCH blocks, and the UE can use a single spatial domain receive filter or multiple synchronous spatial domain receive filters.

[0013] L1-SINR-based beam measurement and reporting is also specified. For L1-SINR-based beam measurement and reporting, the UE can be configured with one of the following resource settings: The UE is configured with a resource setting that includes a set of NZP CSI-RS resources for channel measurement and interference measurement.

[0014] The UE configuration has two resource settings. The first resource setting has a set of NZP CSI-RS resources or SS / PBCH blocks for channel measurements, and the second resource setting has a set of NZP CSI-RS resources or ZP CSI-RS resources for interference measurements.

[0015] For L1-SINR beam reporting, the UE can report up to 4 CRIs or SSBRIs and the corresponding L1-SINR measurement results. Group-based beam reporting of L1-SINR is also supported, where the UE can report up to 2 CRIs or SSBRIs and the corresponding L1-SINR measurement results.

[0016] Current beam measurement and reporting methods cannot effectively support multi-TRP transmission. Based on the beam reporting information specified in current methods, the system cannot select a suitable Tx beam to simultaneously transmit PDSCH from two TRPs. This disclosure provides methods and apparatus for solving one or more of the above-mentioned problems.

[0017] Figure 1 A wireless communication system 100 for implementing this technology is shown. For example... Figure 1 As shown, the wireless communication system 100 can be a multi-TRP transmission system, including one or more TRPs (e.g., TRP 111 and TRP 112) constituting network devices (or base stations). Examples of network devices include base transceiver stations (BTS), base stations (nodeBs, NBs), evolved NBs (eNBs or eNodeBs), next-generation base stations (gNBs or gNodeBs), wireless fidelity (Wi-Fi) access points (APs), etc. In some embodiments, network devices may include relay stations, access points, vehicle-mounted devices, wearable devices, etc. Network devices can include wireless connectivity devices for communication networks, such as: Global System for Mobile Communication (GSM) networks, Code Division Multiple Access (CDMA) networks, Wideband CDMA (WCDMA) networks, LTE networks, Cloud Radio Access Network (CRAN), networks based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard (e.g., Wi-Fi networks), Internet of Things (IoT) networks, Device-to-Device (D2D) networks, Next Generation Networks (e.g., 5G networks), and Public Land Mobile Networks (PLMNs). 5G systems or networks can be referred to as New Radio (NR) systems or networks.

[0018] exist Figure 1In this context, the wireless communication system 100 also includes a terminal device 101. The terminal device 101 can be an end-user device used to facilitate wireless communication. The terminal device 101 can be used to wirelessly connect to network devices according to one or more corresponding communication protocols / standards (e.g., via wireless channel 105). The terminal device 101 can be mobile or fixed. The terminal device 101 can be a user equipment (UE), access terminal, user unit, user station, mobile site, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. Examples of the terminal device 101 include modems, cellular phones, smartphones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, Internet of Things (IoT) devices, devices for 5G networks, devices for public terrestrial mobile networks, etc. For illustrative purposes, Figure 1 Only one network device and one terminal device 101 are shown in the wireless communication system 100. However, in some cases, the wireless communication system 100 may include other network devices and / or terminal devices.

[0019] Terminal device 101 can be used to receive PDSCH transmissions from TRP 111 and TRP 112. TRP 111 can transmit PDSCH 121 to terminal device 101 using transmit (Tx) beam 131, while TRP 112 can transmit PDSCH 122 to terminal device 101 using Tx beam 132. PDSCH 121 and PDSCH 122 can completely overlap, partially overlap, or not overlap in the time domain. When PDSCH 121 and PDSCH 122 completely or partially overlap in the time domain, terminal device 101 is able to receive signals transmitted by Tx beam 131 and Tx beam 132 on the orthogonal frequency-division multiplexing (OFDM) symbols of transmitting PDSCH 121 and PDSCH 1222. Based on beam training, terminal device 101 can also be used to pair Rx beam 141 with Tx beam 131 and Rx beam 142 with Tx beam 132. Therefore, in order for terminal device 101 to receive signals transmitted by Tx beam 131 and Tx beam 132 on the same symbol, terminal device 101 can also be used to use Rx beam 141 and Rx beam 142 on the same symbol (i.e., simultaneously).

[0020] To facilitate multi-TRP transmission, the wireless communication system 100 may include the following functions. Terminal device 101 can be used to measure multiple Tx beams from TRP 111 and multiple Tx beams from TRP 112. Terminal device 101 can also be used to notify the system which TRP 111(t) and which TRP 112(t) are good candidates for downlink transmission. The wireless communication system 100 can select the optimal Tx beam for TRP 112(t) based on information reported by terminal device 101 (e.g., resource indicators, beam measurements). Note that although only two TRPs are described, the wireless communication system 100 can also support a third, fourth, or nth TRP for beam measurement and reporting using a configuration similar to that described above for TRP 111 or TRP 112, where n is any predefined value. The following is combined with... Figure 2 and Figure 3 More details about the above features are described below.

[0021] Figure 2 This is a flowchart of a method 200 according to one or more embodiments of this disclosure. Method 200 may be performed by a network device or gNB including a terminal device or UE (e.g., terminal device 101) and one or more TRPs (e.g., TRP 111 and TRP 112) (e.g., as described above regarding...). Figure 1 The wireless communication system (e.g., wireless communication system 100) of the described network device is implemented. Method 200 is used to determine and report beam measurements of multiple TRPs.

[0022] In block 201, the UE receives configuration information. In some embodiments, the UE can receive configuration information from the gNB. The configuration information may include a first set of CSI-RS resources and / or SS / PBCH blocks for measuring the Tx beam of a first TRP (e.g., TRP 111) and a second set of CSI-RS resources and / or SS / PBCH blocks for measuring the Tx beam of a second TRP (e.g., TRP 112). The first set of CSI-RS resources and / or SS / PBCH blocks can provide channel measurement resources (CMR) for the first TRP, and the second set of CSI-RS resources and / or SS / PBCH blocks can provide channel measurement resources (CMR) for the second TRP.

[0023] In some embodiments, the configuration information may include resource settings that provide CMRs for two TRPs. For example, the UE may receive resource settings, as indicated by higher-layer parameters, that include a first list of non-zero power (NZP) CSI-RS resources and / or SS / PBCH blocks as the CMR for the first TRP and a second list of NZP CSI-RS resources and / or SS / PBCH blocks as the CMR for the second TRP. Table 1 below is an example of resource settings indicated by the higher-layer parameter CSI-ResourceConfig. In Table 1, nzp-CSI-RS-ResourceSetList can provide the CMR for the first TRP, and nzp-CSI-RS-ResourceSetList2nd can provide the CMR for the second TRP.

[0024]

[0025] In some embodiments, the configuration information may include two sets of CSI-RS resources in an aperiodic trigger state, which provide the CMR for a first TRP and a second TRP. When a trigger in the downlink control information (DCI) received from the gNB indicates one of the aperiodic trigger states, the UE can measure the CMR of both TRPs in response and then report the measurement results. Table 2 shows an example of resource settings indicated by the higher-layer parameter CSI-AperiodicTriggerState. In Table 2, resourcesForChannel can provide the CMR for the first TRP, and resourcesForChannel2nd can provide the CMR for the second TRP.

[0026]

[0027] In block 203, the gNB requests the UE to report beam measurements for the first TRP and the second TRP. For example, when providing the UE with the CMR of the first TRP and the CMR of the second TRP, the gNB may request the UE to measure the CSI-RS resources and / or SS / PBCH blocks configured for the CMR of the first TRP, and measure the CSI-RS resources and / or SS / PBCH blocks configured for the CMR of the second TRP.

[0028] In block 205, the UE determines the beam measurement of the first TRP and the second TRP based on the received configuration information. The UE can determine the beam measurement result of the first TRP based on the CMR of the first TRP. The UE can also determine the beam measurement result of the second TRP based on the CMR of the second TRP. More details regarding the UE's determination of the beam measurement of the first and second TRPs are provided below. Figure 3 describe.

[0029] In block 207, the UE reports the beam measurements of the first TRP and the second TRP. In some embodiments, even if the two TRPs are two different antenna points located at two different locations, the UE can report the beam measurements of both TRPs simultaneously as combined information. By reporting the beam measurements of the first and second TRPs, method 200 allows the wireless communication system 100 to determine which Tx beams(s) of the first and second TRPs are the best candidates for subsequent downlink transmission. The CSI-RS resources and / or SS / PBCH blocks of the two different TRPs transmitted by the gNB can then be received simultaneously by the UE. Therefore, method 200 enables the wireless communication system 100 to double its transmit throughput and wireless channel efficiency. Further details regarding the UE reporting beam measurements are provided below. Figure 3 Description. Note that although only two TRPs are described, method 200 can also use methods similar to those described above for the first or second TRP to support a third, fourth, or nth TRP for beam measurement and reporting, where n is any predefined value configured in the wireless communication system 100.

[0030] Figure 3 This is a flowchart of method 300 according to one or more embodiments of this disclosure. Method 300 may be performed by a network device or gNB including a terminal device or UE (e.g., terminal device 101) and one or more TRPs (e.g., TRP 111 and TRP 112) (e.g., as described above). Figure 1 The wireless communication system (e.g., wireless communication system 100) of the described network device is implemented. Method 300 is used to determine and report beam measurements of multiple TRPs. In some embodiments, method 300 may be triggered when method 200 is performed.

[0031] In block 301, the UE receives the CMR of the first TRP and the CMR of the second TRP. In some embodiments, the UE may receive the CMR of the first TRP and the second TRP from the gNB as part of the configuration information described in block 201 regarding method 200. Specifically, the UE may receive a first set of CSI-RS resources and / or SS / PBCH blocks as the CMR of the first TRP and a second set of CSI-RS resources and / or SS / PBCH blocks as the CMR of the second TRP. For example, the gNB may request the UE to report the RSRP measurements of the CSI-RS resources in the first set and the RSRP measurements of the CSI-RS resources in the second set. In some instances, the RSRP measurements may be L1-RSRP measurements.

[0032] In some embodiments, the UE may also receive one or more sets of NZP CSI-RS resources and / or CSI-interference measurement (CSI-IM) resources as part of configuration information for subsequent interference measurements, as requested by the gNB. For example, the UE may receive a third set of CSI-RS resources or CSI-IM resources and / or a fourth set of CSI-RS resources or CSI-IM resources. The third and / or fourth sets of CSI-RS resources may be NZP CSI-RS resources. Further details regarding the use of the third and / or fourth sets of CSI-RS resources or CSI-IM resources for beam measurements are described below with respect to block 305.

[0033] In block 303, the UE measures the RSRP of each CMR of the first TRP and the RSRP of each CMR of the second TRP. Specifically, the UE may measure the RSRP of each CSI-RS resource and / or SS / PBCH block of the CMR of the first TRP. Similarly, the UE may measure the RSRP of each CSI-RS resource and / or SS / PBCH block of the CMR of the second TRP.

[0034] In block 305, the UE measures the signal-to-interference-plus-noise ratio (SINR) of each CMR of the first TRP and the RSRP of each CMR of the second TRP. In some embodiments, method 300 executes block 305 when the UE: (1) is requested by the gNB to perform interference measurement; and / or (2) receives NZP CSI-RS resources or CSI-IM resources from the gNB for interference measurement. Specifically, the UE may measure the SINR of each CSI-RS resource and / or SS / PBCH block of the CMR of the first TRP. Similarly, the UE may measure the SINR of each CSI-RS resource and / or SS / PBCH block of the CMR of the second TRP. In some instances, the SINR measurement may be an L1-SINR measurement.

[0035] In some embodiments, the UE can measure the SINR of each CMR of the first TRP based on a third set of CSI-RS resources (e.g., NZP CSI-RS resources). Specifically, the UE can use the third set to estimate interference and then calculate the L1-SINR using the CMRs of the first TRP. The UE can also measure the SINR of each CMR of the second TRP based on the third set of CSI-RS resources. In particular, the UE can use the third set to estimate interference and then calculate the L1-SINR using the CMRs of the second TRP.

[0036] In some embodiments, the UE can measure the SINR of each CMR of the first TRP and the second TRP based on the third and fourth sets of CSI-RS resources (e.g., NZP CSI-RS resources), respectively. The UE can measure the SINR of each CMR of the first TRP based on the third set of CSI-RS resources. Specifically, the UE can estimate the interference using the third set and then calculate the L1-SINR using the CMR of the first TRP. The UE can measure the SINR of each CMR of the second TRP based on the fourth set of CSI-RS resources. Specifically, the UE can estimate the interference using the fourth set and then calculate the L1-SINR using the CMR of the second TRP.

[0037] In block 307, the UE reports the resource indicator and the measured RSRP and / or SINR for the first TRP and the second TRP. In the various embodiments described below, the UE may report the resource indicator and the measured RSRP and / or SINR to the gNB (e.g., beam measurements in blocks 303 and / or 305). The resource indicator may be (1) the CRI indicating the CSI-RS resource selected by the UE, or (2) the SSBRI indicating the SS / PBCH block selected by the UE. Each resource indicator may also correspond to the measured RSRP and / or SINR of the CSI-RS resource and / or SS / PBCH indicated by the resource indicator.

[0038] In some embodiments, the UE may report K pairs of resource indicators and corresponding beam measurements. K may be a predefined value configured by the wireless communication system 100, which is less than or equal to the magnitude of the first set of CMRs or the second set of CMRs. Specifically, the UE may report K pairs, each pair including: (1) Indicate the first CSI-RS resource indicator (CRI) or SS / PBCH block resource indicator (SSBRI) of the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP, and (2) The measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP; and (1) The second CRI or SSBRI corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP, and (2) the measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP.

[0039] In other words, the UE can report K pairs of {first CRI or SSBRI, second CRI or SSBRI} and the RSRP measurements corresponding to the first CRI or SSBRI and the second CRI or SSBRI. For example, the UE can report K pairs: {(RSRP measurement and / or SINR of the first CRI or SSBRI, and the second CRI or SSBRI)}. Here, in each of those K pairs, the first CRI or SSBRI with a value of k can correspond to the (k+1)th entry of the first group of CSI-RS resources or SS / PBCH blocks, while the second CRI or SSBRI with a value of k can correspond to the (k+1)th entry of the second group of CSI-RS resources or SS / PBCH blocks. For example, when the first CRI or SSBRI has a value k=0 (e.g., represented by 3 bits 000), the first CRI or SSBRI can indicate that the UE has selected the (k+1)th = 1st entry of the first group of CSI-RS resources or SS / PBCH blocks. As another example, when the second CRI or SSBRI has a value k=2 (e.g., represented by 3 bits 010), the second CRI or SSBRI can indicate that the UE has selected the (k+1)th = 3rd entry of the second group of CSI-RS resources or SS / PBCH blocks.

[0040] Furthermore, in each pair, at block 305, the SINR of the first CRI or SSBRI can be calculated based on the interference measurement resource (IMR) associated with the second CRI or SSBRI (e.g., an NZP CSI-RS resource or CSI-IM resource indicated by the second CRI or SSBRI). Similarly, at block 305, the SINR of the second CRI or SSBRI can be calculated based on the IMR associated with the first CRI or SSBRI (e.g., an NZP CSI-RS resource or CSI-IM resource indicated by the second CRI or SSBRI). In other words, the L1-SINR of the CMR indicated by the first CRI or SSBRI can be calculated based on the assumption that the resource indicated by the second CRI or SSBRI (e.g., NZP CSI-RS resource or CSI-IM resource) is an IMR.

[0041] In each report pair, the UE can simultaneously receive two different CSI-RS resources or SS / PBCH blocks selected by the UE from the CMR of the first TRP and the second TRP. In various embodiments, the UE can simultaneously receive two different CSI-RS resources or SSB resources reported in the pair using different spatial domain receive filters.

[0042] In some embodiments, the UE reports a first report group and a second report group, each report group having N resource indicators and corresponding beam measurements (e.g., RSRP and / or SINR). The N resource indicators and corresponding beam measurements of the first report group can correspond to any N CMRs in the CMRs of the first TRP, and the N resource indicators and corresponding beam measurements of the second report group can correspond to any N CMRs in the CMRs of the second TRP. N can be a predefined value configured by the wireless communication system 100, which is less than or equal to the size of the first group of CMRs or the second group of CMRs. A CRI or SSBRI with a value of k in the first report group can correspond to the (k+1)th entry selected from the first group of CSI-RS resources or SS / PBCH blocks. A CRI or SSBRI with a value of k in the second report group can correspond to the (k+1)th entry selected from the second group of CSI-RS resources or SS / PBCH blocks.

[0043] The UE can simultaneously receive any two different CSI-RS resources or SS / PBCH blocks indicated in two different report groups. In various embodiments, the UE can simultaneously receive any two different CSI-RS resources or SS / PBCH blocks in two different report groups using different spatial domain receive filters.

[0044] Furthermore, within each reporting group, the UE can use reports based on differential L1-RSRP. The differential L1-RSRP value can be calculated by multiplying a predefined dB step size by the maximum L1-RSRP value in the reporting group. For example, the measured RSRP for each CMR of the first TRP can be a differential L1-RSRP value calculated based on multiplying the dB step size by the maximum L1-RSRP value in the first reporting group. The measured RSRP for each CMR of the second TRP can be a differential L1 RSRP value calculated based on multiplying the dB step size by the maximum L1-RSRP value in the second reporting group. When the UE also reports SINR beam measurements, the UE can use reports based on differential L1-SINR. The differential L1-SINR value can be calculated by multiplying a predefined dB step size by the maximum L1-SINR value in the reporting group. For example, the measured SINR for each CMR of the first TRP can be a differential L1-SINR value calculated based on multiplying the dB step size by the maximum L1-SINR value in the first reporting group. The measured SINR for each CMR in the second TRP can be a differential L1-SINR value calculated by multiplying the dB step size by the maximum L1-SINR value in the second reporting group.

[0045] In some embodiments, the UE can configure a first reporting setting and a second reporting setting through configuration information. The configuration information can also provide the UE with the association between the first and second reporting settings. In one example, the UE can report one or more resource indicators (e.g., CRI or SSBRI) and corresponding beam measurements (e.g., RSRP and / or SINR) for the first reporting setting in a first CSI reporting instance. The UE can report one or more resource indicators (e.g., CRI or SSBRI) and corresponding beam measurements (e.g., RSRP and / or SINR) for the second reporting setting in a second CSI reporting instance. When the second CSI reporting instance is the most recent CSI reporting instance preceding the first CSI reporting instance, any CMR of the first TRP indicated by the reported resource indicator and any CMR of the second TRP indicated by the reported resource indicator can be simultaneously received by the UE. In various embodiments, the first CSI reporting instance and / or the second CSI reporting instance may include indicators indicating whether one or more CMRs of the first TRP indicated by the reported resource indicator and one or more CMRs of the second TRP indicated by the reported resource indicator can be simultaneously received.

[0046] Note that although only two TRPs are described, method 300 can also use methods similar to those described above for the first or second TRP to support a third, fourth, or nth TRP for beam measurement and reporting, where n is any predefined value configured in the wireless communication system 100.

[0047] Figure 4 Terminal device 400 according to one or more embodiments of this disclosure (e.g.) Figure 1 A schematic block diagram of an example of a terminal device 101. Figure 4 As shown, the terminal device 400 includes a processor 410 (e.g., DSP, CPU, GPU, etc.) and a memory 420. The processor 410 can be used to implement corresponding... Figure 2 Method 200 and Figure 3 Method 300 and / or instructions from other aspects of the above embodiments. Processor 410 may also be coupled to memory.

[0048] It should be understood that the processor in this technical embodiment can be an integrated circuit chip with signal processing capabilities. In implementation, the steps in the above method can be implemented using integrated logic circuits in the processor hardware or instructions in software form. The processor can be 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 devices, discrete gate or transistor logic devices, and discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in this technical embodiment. The general-purpose processor can be a microprocessor, or alternatively, any conventional processor. The steps in the methods disclosed in this technical embodiment can be directly executed or completed by a hardware-implemented decoding processor, or by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other storage media mature in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps in the above method.

[0049] It is understood that the memory in this technical embodiment can be volatile memory, non-volatile memory, or a combination of both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random-access memory (RAM) and used as an external cache. For illustrative purposes and not as a limiting description, various forms of RAM may be used, including, for example, static random-access memory (SRAM), dynamic random-access memory (DRAM), synchronous dynamic random-access memory (SDRAM), double data rate synchronous dynamic random-access memory (DDR SDRAM), enhanced synchronous dynamic random-access memory (ESDRAM), synchronous link dynamic random-access memory (SLDRAM), and direct Rambus random-access memory (DR RAM). It should be noted that the memory in the systems and methods described herein is intended to include, but is not limited to, these memories and any other suitable types of memory.

[0050] The above specific embodiments of the disclosed technology are not intended to be exhaustive or to limit the disclosed technology to the precise forms disclosed above. While specific examples of the disclosed technology have been described above for illustrative purposes, various equivalent modifications can be made within the scope of the described technology, as will be recognized by those skilled in the art. For example, although processes or blocks are presented in a given order, alternative implementations may execute routines with steps or employ systems with blocks in a different order, and some processes or blocks may be deleted, moved, added, subdivided, combined, and / or modified to provide alternative implementations or sub-combinations. Each of these processes or blocks can be implemented in various different ways. Furthermore, although processes or blocks are sometimes shown to be executed serially, these processes or blocks may be changed to be executed or implemented in parallel, or may be executed at different times. In addition, any specific numerical values ​​indicated herein are merely examples; alternative implementations may employ different values ​​or ranges.

[0051] In the detailed description, numerous specific details are set forth to provide a thorough understanding of the techniques described herein. In other embodiments, the techniques described herein may be practiced without these specific details. In other instances, well-known features such as particular functions or routines have not been described in detail to avoid unnecessarily obscuring this disclosure. References to “implementation / exemplification,” “an embodiment / exemplification,” etc., in this specification mean that a particular feature, structure, material, or characteristic described is included in at least one embodiment of the described technology. Therefore, these phrases appearing in this specification do not necessarily refer to the same implementation / exemplification. On the other hand, such references are not necessarily mutually exclusive. Furthermore, particular features, structures, materials, or characteristics may be combined in one or more implementations / exemplifications in any suitable manner. It should be understood that the various embodiments shown in the figures are merely exemplary representations and are not necessarily drawn to scale.

[0052] Several details describing the structure or process are well known and are generally associated with communication systems and subsystems; however, these details may unnecessarily obscure some important aspects of the disclosed technology, and therefore are not elaborated upon herein for clarity. Furthermore, although the following disclosure describes several embodiments of different aspects of this disclosure, several other embodiments may have different configurations or different components than those described in this section. Therefore, the disclosed technology may have other embodiments, which may have additional elements or may not have several elements described below.

[0053] Many implementations or aspects of the techniques described herein can take the form of computer or processor executable instructions, including routines executed by a programmable computer or processor. Those skilled in the art will understand that the described techniques can be practiced on computer or processor systems other than those shown and described below. The techniques described herein can be implemented in a dedicated computer or data processor specifically programmed, configured, or constructed to execute one or more of the computer executable instructions described below. Therefore, the terms “computer” and “processor” as commonly used herein refer to any data processor. Information processed by such computers and processors can be presented on any suitable display medium. Instructions for performing computer or processor executable tasks can be stored on or on any suitable computer-readable medium, including hardware, firmware, or a combination of hardware and firmware. Instructions can be contained in any suitable storage device, including, for example, a flash drive and / or other suitable media.

[0054] The term "and / or" in this specification describes the relationship between related objects only, indicating that there are three possible relationships. For example, A and / or B can represent the following three situations: A exists alone, both A and B exist, and B exists alone. As used herein, the word "or" refers to any possible permutation of a set of items. For example, the phrase "A, B, or C" means at least one of A, B, C, or any combination thereof, such as: A; B; C; A and B; A and C; B and C; A, B, and C; or multiple any items, such as A and A; B, B, and C; A, A, B, C, and C, etc.

[0055] These and other modifications can be made to the disclosed technology based on the above specific embodiments. While the specific embodiments describe certain examples of the disclosed technology and the best envisioned modes, the disclosed technology can be practiced in many ways, no matter how detailed the description is in the text. The details of the system may vary considerably in its specific implementation, but are still covered by the technology disclosed herein. As stated above, specific terms used in describing certain features or aspects of the disclosed technology should not be construed as implying that such terms are redefined herein as limited to any particular feature, characteristic, or aspect of the disclosed technology associated with that term. Therefore, the invention is not limited except for the appended claims. In general, the terms used in the appended claims should not be construed as limiting the disclosed technology to the specific examples disclosed in the specification, unless such terms are expressly defined in the above specific embodiments section.

[0056] Those skilled in the art will understand that the examples, units, and algorithm steps described in conjunction with the embodiments disclosed in this specification can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. For each specific application, those skilled in the art can use different methods to implement the described functions, but such implementations should not be considered beyond the scope of this application.

[0057] Although certain aspects of the invention are presented hereinafter in certain claims, the applicant has considered all aspects of the invention in any number of claims. Therefore, the applicant reserves the right to file additional claims in this application or subsequent applications to seek such additional claim forms.

Claims

1. A method comprising: When the user equipment (UE) receives configuration information from the next-generation node B (gNB), The gNB includes a first transmit / receive point (TRP) and a second TRP. The gNB requests the UE to report the beam measurements of the first TRP and the second TRP; The UE determines the beam measurement of the first TRP based on the channel measurement resources (CMR) of the first TRP; and The UE determines the beam measurement of the second TRP based on the CMR of the second TRP.

2. The method according to claim 1, wherein, The configuration information includes: (1) The first set of Channel State Information Reference Signal (CSI-RS) resources or Synchronization Signal Physical Broadcast Channel (SS / PBCH) blocks of the CMR of the first TRP, which is used to measure the transmit (Tx) beam of the first TRP; and (2) The second set of CSI-RS resources or SS / PBCH blocks of the CMR of the second TRP as the Tx beam used to measure the second TRP.

3. The method according to claim 2, in, Determining the beam measurement of the first TRP includes: The UE measures the reference signal received power (RSRP) of each CSI-RS resource or SS / PBCH block of the CMR of the first TRP; and / or The UE measures the signal-to-interference-plus-noise ratio (SINR) of each CSI-RS resource or SS / PBCH block of the CMR in the first TRP; and The beam measurement for determining the second TRP includes: The UE measures the RSRP of each CSI-RS resource or SS / PBCH block of the CMR of the second TRP; and / or The UE measures the SINR of each CSI-RS resource or SS / PBCH block of the CMR of the second TRP.

4. The method according to claim 3, further comprising: The UE reports the beam measurements of the first TRP and the second TRP to the gNB.

5. The method according to claim 4, wherein, The beam measurements described in the report include: The UE reports K pairs of resource indicators and corresponding beam measurements to the gNB. Where K is a predefined value that is less than or equal to the size of the first group and the second group.

6. The method according to claim 5, wherein, Each of the K pairs includes: (1) Indicate the first CSI-RS resource indicator (CRI) or SS / PBCH block resource indicator (SSBRI) of the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP, and (2) The measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP; and (1) The second CRI or SSBRI corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP, and (2) the measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP.

7. The method according to claim 6, in, The first CRI or SSBRI with a value of k corresponds to the (k+1)th entry in the CMR of the first TRP, and Wherein, the second CRI or SSBRI with a value of k corresponds to the (k+1)th entry in the CMR of the second TRP.

8. The method according to claim 6, wherein, In each pair, the UE is able to simultaneously receive the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP and the second TRP.

9. An apparatus for a user equipment (UE), the apparatus comprising: Memory; A processor, coupled to the memory, is used for: Receive configuration information from the next-generation node B (gNB). The gNB includes a first transmit / receive point (TRP) and a second TRP. Receive a request from the gNB to report the beam measurements of the first TRP and the second TRP; The beam measurement of the first TRP is determined based on the channel measurement resources (CMR) of the first TRP; and The beam measurement of the second TRP is determined based on the CMR of the second TRP.

10. The apparatus according to claim 9, wherein, The configuration information includes: (1) The first set of Channel State Information Reference Signal (CSI-RS) resources or Synchronization Signal Physical Broadcast Channel (SS / PBCH) blocks of the CMR of the first TRP, which is used to measure the transmit (Tx) beam of the first TRP; and (2) The second set of CSI-RS resources or SS / PBCH blocks of the CMR of the second TRP as the Tx beam used to measure the second TRP.

11. The apparatus according to claim 10, in, Determining the beam measurement of the first TRP includes: Measure the reference signal received power (RSRP) of each CSI-RS resource or SS / PBCH block of the CMR of the first TRP; and / or Measure the signal-to-interference-plus-noise ratio (SINR) of each CSI-RS resource or SS / PBCH block of the CMR of the first TRP; and The beam measurement for determining the second TRP includes: Measure the RSRP of each CSI-RS resource or SS / PBCH block of the CMR of the second TRP; and / or Measure the SINR of each CSI-RS resource or SS / PBCH block of the CMR of the second TRP.

12. The apparatus according to claim 11, wherein, The processor is also used for: The beam measurements of the first TRP and the second TRP are reported to the gNB.

13. The apparatus according to claim 12, wherein, The beam measurements described in the report include: The UE reports K pairs of resource indicators and corresponding beam measurements to the gNB. Where K is a predefined value that is less than or equal to the size of the first group and the second group.

14. The apparatus according to claim 13, wherein, Each of the K pairs includes: (1) Indicate the first CSI-RS resource indicator (CRI) or SS / PBCH block resource indicator (SSBRI) of the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP, and (2) The measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the first TRP; and (1) The second CRI or SSBRI corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP, and (2) the measured RSRP and / or SINR corresponding to the CSI-RS resource or SS / PBCH block selected from the CMR of the second TRP.

15. The apparatus according to claim 14, in, The first CRI or SSBRI with a value of k corresponds to the (k+1)th entry in the CMR of the first TRP, and Wherein, the second CRI or SSBRI with a value of k corresponds to the (k+1)th entry in the CMR of the second TRP.

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