Sounding reference signal (SRS) reference signal received power (SRS-RSRP) reporting in wireless system

Abstract

Some aspects relate to apparatuses and methods for a wireless system to implement a mechanism for transmitting a measurement report using a physical layer (L1), the measurement report carrying a sounding reference signal (SRS) reference signal received power (SRS-RSRP) measurement to provide an indication of cross-link interference (CLI) between a first user equipment (UE) and a second UE. The first UE may determine a channel state information (CSI) configuration received from a base station; and configuring a channel measurement resource (CMR) to include the SRS received from the second UE based on the CSI configuration. The first UE may measure the SRS to obtain a SRS-RSRP measurement, generate a measurement report with the SRS-RSRP measurement, and send the measurement report to the base station using L1.

Description

[0001] Related applications

[0002] This application claims priority to U.S. patent application No. 18 / 394,270, filed on December 22, 2023, which claims the benefit of U.S. Provisional Patent Application No. 63 / 439,885, filed on January 19, 2023, the contents of both applications being incorporated herein by reference in their entirety. Background Art Technical Field

[0003]

[0014] The described aspects generally relate to wireless communications, including sounding reference signal (SRS) reference signal received power (SRS-RSRP) reporting in wireless systems.

[0004] Related fields

[0005] Wireless communication systems may include fifth-generation (5G) systems, new radio (NR) systems, long-term evolution (LTE) systems, non-terrestrial wireless networks (NTNs), combinations thereof, or some other wireless systems. Furthermore, wireless communication systems may support a wide range of use cases, such as enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), ultra-reliable and low-latency communications (URLLC), and enhanced vehicle-to-everything communications (eV2X). Wireless systems may include multiple user equipment (UEs) communicating with a base station or with each other. Interference between multiple UEs in a wireless system can degrade the performance of the wireless system. Summary of the Invention

[0006] Some aspects of the present disclosure relate to apparatus and methods for implementing a mechanism for sending measurement reports using a physical layer (L1) that carry Sounding Reference Signal (SRS) Reference Signal Received Power (SRS-RSRP) measurements to provide an indication of cross-link interference (CLI) between a first user equipment (UE) and a second UE in a wireless system. Measurement reports sent using L1 can be more efficient than measurement reports carried by higher-level layers, such as radio resource control (RRC) layer messages.

[0007] Some aspects of the present disclosure relate to a first UE of a wireless system that communicates with a base station and a second UE. The first UE may include a transceiver and a processor communicatively coupled to the transceiver. The transceiver may be configured to communicate with the base station and the second UE.

[0008] According to some aspects, a processor of a first UE may determine a channel state information (CSI) configuration received from a base station; and based on the CSI configuration, configure a channel measurement resource (CMR) to include a sounding reference signal (SRS) received from a second UE. The processor may further measure the SRS to obtain an SRS reference signal received power (SRS-RSRP) measurement, generate a measurement report with the SRS-RS RP measurement to provide an indication of cross-link interference (CLI) between the first UE and the second UE, and send the measurement report to the base station using L1. In some embodiments, the processor may also report the UE capabilities of the first UE to the base station, wherein the CSI configuration is determined by the base station based on the UE capabilities. The UE capabilities may include the number of CSI processing units (CPUs) supported by the first UE.

[0009] In some embodiments, to measure the SRS to obtain an SRS-RSRP measurement, the processor may perform measurement on a latest SRS of a plurality of SRSs that is no later than a CSI reference resource. The processor may send a measurement report in an aperiodic manner, a periodic manner, or a semi-persistent manner. In some embodiments, the measurement report may be a standalone report without carrying other reference measurements, including RI (rank indicator), channel quality information (CQI), precoding matrix indicator (PMI), layer indicator (LI), CSI-RS resource indicator (CRI), or synchronization signal (SS) and physical broadcast channel (PBCH) resource block indicator (SSBRI).

[0010] According to some aspects, the CSI configuration may include a subcarrier spacing (SCS) of the SRS, and a serving cell identifier of a cell in which the first UE and the second UE are located. The CSI configuration may include an adjustment to a receive timing for measuring the SRS. The CSI configuration may also include a priority between a measurement report, a link adaptation (LA)-CSI report, or a beam measurement (BM)-CSI report. The CSI configuration may also include an SRS-RSRP processing time for measuring the SRS by the first UE to obtain an SRS-RSRP measurement and sending the measurement report to the base station using L1. The CSI configuration may be received from the base station via a radio resource control (RRC) message, a medium access control-control element (MAC-CE), or downlink control information (DCI).

[0011] In some embodiments, the CSI configuration may include a CSI-ReportConfig parameter and / or a CSI-ResourceConfig parameter, wherein one or more SRS resource sets in the SRS resource set may be configured by the CSI-ResourceConfig parameter. In some embodiments, the CSI configuration may include an SRS resource set index, and the processor may measure the SRS based on the SRS resource set index to obtain an SRS-RS RP measurement, and send a measurement report to the base station using L1, wherein the measurement report is an aperiodic measurement report, a periodic measurement report, or a semi-persistent measurement report. In some embodiments, the CMR may be configured to include a single SRS resource or a single SRS resource set according to the CSI-ResourceConfig parameter included in the CSI configuration.

[0012] This disclosure is provided for the purpose of illustrating some aspects only, so as to provide an understanding of the subject matter described herein. Therefore, the above features are merely examples and should not be construed as narrowing the scope or essence of the subject matter of this disclosure. Other features, aspects, and advantages of the present disclosure will become apparent from the following detailed description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate the disclosure and, together with the description, further serve to explain the principles of the disclosure and enable one skilled in the relevant art to make and use the disclosure.

[0014] Figure 1 A wireless system is illustrated in which a user equipment (UE) sends measurement reports carrying Sounding Reference Signal (SRS) Reference Signal Received Power (SRS-RSRP) measurements using a physical layer (L1) according to some aspects of the present disclosure.

[0015] Figure 2 A block diagram illustrating a UE for performing the functions described herein according to some aspects of the present disclosure is illustrated.

[0016] Figure 3 Illustrated are example procedures performed by a UE for sending a measurement report carrying SRS-RSRP measurements using L1, according to some aspects of the present disclosure.

[0017] Figure 4 is an example computer system for implementing some aspects or portions of the disclosure provided herein.

[0018] The present disclosure is described with reference to the accompanying drawings. In the drawings, generally, like reference numerals indicate identical or functionally similar elements. Additionally, generally, the leftmost digit of a reference numeral identifies the drawing in which the reference numeral first appears. DETAILED DESCRIPTION

[0019] In wireless systems, user equipment (UE) can measure signals, such as serving cell signals, neighbor cell signals, and other signals, to provide information about channel conditions and interference. Wireless systems may include fifth generation (5G) systems, new radio (NR) systems, long term evolution (LTE) systems, non-terrestrial wireless networks (NTNs), combinations thereof, or some other wireless systems.

[0020] In some wireless systems, due to interference between transmission and reception, a device (base station or UE) may not be able to perform downlink (DL) and uplink (UL) operations (e.g., transmission and reception) simultaneously in the same frequency. Some wireless systems may support paired spectrum, such as frequency division duplex (FDD) spectrum, so that both full-duplex operation and half-duplex operation can be performed. Some wireless systems may only support unpaired spectrum, such as time division duplex (TDD) spectrum, so that only half-duplex operation can be performed. Some wireless systems may support sub-band full duplex (SBFD) in unpaired TDD spectrum to allow a base station to receive UL from a first UE and simultaneously transmit DL to a second UE, with a specific gap in frequency between DL and UL operations.

[0021] In some wireless systems (such as wireless systems supporting SBFD), there may be cross-link interference (CLI) between a first UE and a second UE communicating with a base station in a cell. In addition, there may also be network (NW) to network (NW) CLI. For UE to UE CLI management, some wireless systems may support sounding reference signal (SRS) reference signal received power (SRS-RSRP) measurement as an indication of CLI. Additionally and alternatively, CLI received signal strength indicator (RSSI) measurement may be used as an indication of CLI. However, SRS-RSRP measurement or RSSI measurement may only be sent by a higher level message (such as by an RRC message at the radio resource control (RRC) layer).

[0022] In some embodiments, to improve the accuracy and efficiency of CLI management, a mechanism is provided for sending measurement reports carrying SRS-RSRP measurements using the physical layer (L1) to provide an indication of CLI between a first UE and a second UE in a wireless system. Using L1 to send measurement reports carrying SRS-RSRP measurements can be more efficient than using higher-level messages (such as through RRC messages) to carry SRS-RSRP measurements.

[0023] In some embodiments, a first UE may receive a channel state information (CSI) configuration from a base station, wherein the CSI configuration may be determined based on UE capabilities of the first UE, which may include the number of CSI processing units (CPUs) supported by the first UE. Based on the CSI configuration, the network may configure channel measurement resources (CMRs) for the first UE to include an SRS received from a second UE. The first UE may further measure the SRS to obtain an SRS-RSRP measurement, generate a measurement report with the SRS-RSRP measurement to provide an indication of a CLI between the first UE and the second UE, and send the measurement report to the base station using L1. In some embodiments, the measurement report may be a stand-alone report without carrying other reference measurements, including RI (rank indicator), channel quality information (CQI), precoding matrix indicator (PMI), layer indicator (LI), CSI-RS resource indicator (CRI), or synchronization signal (SS) and physical broadcast channel (PBCH) resource block indicator (SSBR I).

[0024] Figure 1 A wireless system 100 is illustrated in which a UE 101 transmits a measurement report 117 carrying an SRS-RSRP measurement 119 using L1 according to some aspects of the present disclosure. UE 101 is a first UE and can communicate with a second UE 102 and a base station 103 within a cell 104. Wireless system 100 is provided for illustration purposes only and is not intended to limit the disclosed aspects. Wireless system 100 may include, but is not limited to, UE 101, base station 103, and base station 105, all of which are communicatively coupled to a core network 110. UE 101 communicates with base station 103 via communication link 121, and UE 102 communicates with base station 103 via communication link 123.

[0025] In some examples, the wireless system 100 may be a wireless system that includes one or more of an NR system, an LTE system, a 5G system, or some other wireless system. Other network entities not shown may exist, such as a network controller, a relay station. The wireless system 100 may support a wide range of use cases, such as enhanced mobile broadband (eMBB), massive machine type communication (mMTC), ultra-reliable and low-latency communication (URLLC), and enhanced vehicle-to-everything communication (eV2X).

[0026] According to some aspects, base station 103 and base station 105 can be fixed stations or mobile stations. Base station 103 and base station 105 can also be referred to by other names, such as base transceiver system (BTS), access point (AP), transmit / receive point (TRP), evolved Node B (eNB), next generation Node B (gNB), 5G Node B (NB), or some other equivalent terminology. In some examples, base station 103 can be a gNB, and base station 105 can be a gNB or an eNB. In some examples, base station 103 and base station 105 can be interconnected to each other and / or to other base stations or network nodes in the network via various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) (not shown).

[0027] According to some aspects, UE 101 or UE 102 can be stationary or mobile. UE 101 or UE 102 can be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a desktop computer, a cordless phone, a wireless local loop station, a wireless sensor, a tablet computer, a camera, a video surveillance camera, a gaming device, a netbook, an ultrabook, a medical device or equipment, a biometric sensor or device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry such as a smart ring or smart bracelet), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component, a smart meter, industrial manufacturing equipment, a global positioning system device, an Internet of Things (IoT) device, a machine type communication (MTC) device, an evolved or enhanced machine type communication (eMTC) device, or any other suitable device configured to communicate via a wireless medium. For example, MTC and eMTC devices may include robots, drones, location tags, etc.

[0028] According to some aspects, base station 103 and base station 105 may be communicatively coupled to core network 110. Base station 103 may serve cell 104, and base station 105 may serve cell 106. In some other embodiments, cell 104 may partially overlap with cell 106. Cell 104 and cell 106 may be macrocells, picocells, femtocells, and / or another type of cell. In contrast, a macrocell may cover a relatively large geographic area, e.g., several kilometers in radius, a femtocell may cover a relatively small geographic area, e.g., a home, and a picocell may cover an area smaller than the area covered by a macrocell but larger than the area covered by a femtocell. For example, cell 104 may be a macrocell, and cell 106 may be a picocell or a femtocell. Additionally, cell 104 may be a picocell, and cell 106 may be a femtocell. In some examples, the geographic area of ​​the cell may move depending on the location of the mobile base station.

[0029] According to some aspects, UE 101 may include a memory 112, a processor 114 communicatively coupled to the memory, and a transceiver, such as Figure 1 As shown and Figure 2 As further shown, the memory 112 may be configured to store various data and operations for a communication protocol including various layers such as an RRC layer 111 , a medium access control (MAC) layer 113 , and a physical layer ( L1 ) 115 .

[0030] In some embodiments, processor 114 may be configured to determine a CSI configuration 116 received from base station 103. CSI configuration 116 may be received from base station 103 via an RRC message, a MAC control element (MAC-CE), or downlink control information (DCI) 131 using L1. Additionally, processor 114 may configure channel measurement resources (CMRs) 118 to include one or more SRSs 139 received from a second UE (e.g., UE 102) based on CSI configuration 116. Processor 114 may also measure SRS 139 from UE 102 to obtain an SRS-RSRP measurement 119, generate a measurement report 117 with the SRS-RSRP measurement 119 to provide an indication of the CLI between UE 101 and UE 102, and send measurement report 117 to base station 103 using L1. In some embodiments, processor 104 may also report UE capabilities 135 of UE 101 to base station 103, where CSI configuration 116 may be determined by base station 103 based on UE capabilities 135. UE capabilities 135 may include the number of CSI processing units (CPUs) supported by UE 101.

[0031] In some embodiments, to measure the SRS 139 sent from the UE 102 to obtain an SRS-RSRP measurement 119, the processor 114 may perform measurements on the latest SRS in the plurality of SRSs that is no later than the CSI reference resource. The processor 114 may send a measurement report 117 in an aperiodic manner, a periodic manner, or a semi-persistent manner. In some embodiments, the measurement report 117 may be a standalone report without carrying other reference measurements, including RI (rank indicator), channel quality information (CQI), precoding matrix indicator (PMI), layer indicator (LI), CSI-RS resource indicator (CRI), or synchronization signal (SS) and physical broadcast channel (PBCH) resource block indicator (SSBRI).

[0032] In some aspects, CSI configuration 116 may include the subcarrier spacing (SCS) of SRS 139 and the serving cell identifier of cell 104 serving UEs 101 and 102, and may indicate the locations of UEs 101 and 102. CSI configuration 116 may include adjustments to the receive timing used to measure SRS 139. CSI configuration 116 may also include a priority between measurement reports 117, link adaptation (LA)-CSI reports, or beam measurement (BM)-CSI reports. The priority of SRS-RSRP reports compared to LA-CSI reports and BM-CSI reports may also be predetermined and hard-coded in the specification, e.g., SRS-RSRP reports may have the same priority as BM-CSI or LA-CSI. CSI configuration 116 may also include an SRS-RSRP processing time for UE 101 to measure SRS 139 to obtain SRS-RSRP measurement 119 and send measurement report 117 to base station 103 using L1. The SRS-RSRP processing time may also be reported as a UE capability, or predetermined and hard-coded in the specification.

[0033] In some embodiments, the CSI configuration 116 may include a CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, wherein one or more of the SRS resource sets may be configured by the CSI-ResourceConfig parameter. In some embodiments, the CSI configuration 116 may include an SRS resource set index, and the processor 114 may measure the SRS 139 based on the SRS resource set index to obtain an SRS-RSRP measurement 119, and send a measurement report 117 to the base station 103 using L1, wherein the measurement report 117 may be an aperiodic measurement report. In some embodiments, the CMR 118 may be configured to include a single SRS resource or a single SRS resource set according to the CSI-ResourceConfig parameter included in the CSI configuration 116.

[0034] Figure 2The block diagram illustrates a UE 101 having an antenna panel 217 that includes one or more antenna elements, such as antenna element 219, coupled to a transceiver 203 and controlled by a processor 114. Specifically, the transceiver 203 may include radio frequency (RF) circuitry 216, baseband transmit circuitry 212, and baseband receive circuitry 214. The RF circuitry 216 may include multiple parallel RF chains for one or more of transmit and receive functions, each RF chain connected to one or more antenna elements of the antenna panel. The transceiver 203 enables wireless communication between the UE 101 and base stations 103 and UE 102 via the antenna panel 217. Furthermore, the processor 114 may be communicatively coupled to the memory 112, which is further coupled to the transceiver 203.

[0035] In some examples, UE 101 uses RF circuitry 216 to perform measurements on reference signals, such as measuring SRS 139 to obtain SRS-RSRP measurements 119, and to receive CSI configurations 116. Memory 112 may store various data and operations, such as RRC layer 111, MAC layer 113, L1 115, measurement reports 117 including SRS-RSRP measurements 119, UE capabilities 135, CSI configurations 116, CMRs 118, DCI 131, and other data. Memory 112 may include instructions that, when executed by processor 114, perform the functions described herein, including the measurement reporting functions described herein. Alternatively, processor 114 may be "hard-coded" to perform the functions described herein, including the measurement reporting functions described herein.

[0036] Figure 3 An example process 300 is illustrated for transmitting a measurement report 117 carrying an SRS-RSRP measurement 119 using L1 performed by a UE according to some aspects of the present disclosure. The process 300 may be performed by Figures 1 to 2 The process 300 is shown to be performed by the UE 101. For example, the processor 114 may execute or cause the UE 101 to execute the process 300.

[0037] At 302 , UE 101 may determine a CSI configuration 116 received from a base station 103 in communication with UE 101 .

[0038] In some embodiments, the CSI reporting framework may include at least two parts. One part is for the CSI configuration 116, and the other part is for the trigger state associated with the specific CSI configuration. There may be various CSI-related reference signals (RS), such as non-zero power (NZP)-CSI-RS resources, zero power (ZP)-CSI-RS resources, and interference measurement (IM) resources. The CSI configuration 116 may include a parameter ResourceSet for defining the various resources used for CSI signal measurement, and a CSI ResourceConfig parameter for specifying what type of reference signal to send for measurement purposes. The CSI-Resource Config may also configure the type of transmission (periodic, aperiodic, semi-persistent). The CSI-ReportConfig may specify which CSIResourceConfig will be used for measurement.

[0039] In some embodiments, SRS-RSRP measurement 119 may be configured by CSI-ReportConfig included in CSI configuration 116. For reference signals, SRS-RSRP may be measured by UE 101 on SRS 139 transmitted by another UE (UE 102). In some embodiments, CMR 118 may be configured in CSI-ReportConfig included in CSI configuration 116. Specifically, CMR 118 may be configured by resourcesForChannelMeasurement in CSI-ReportConfig. For SRS-RSRP measurement 119, SRS 139 may be configured as CMR 118 in CSI-ReportConfig. In some embodiments, only SSB / CSI-RS may be configured as CMR 118 in CSI-ReportConfig.

[0040] In some embodiments, to configure SRS 139 as CMR 118 for L1 SRS-RSRP reporting, one or more of the SRS resource sets in CSI-ResourceConfig may be configured:

[0041]

[0042] In some embodiments, one or more parameters may be additionally configured, such as the SCS of SRS 139, or the serving cell ID of cell 104.

[0043] In some embodiments, when SRS 139 is configured as a CMR 118 for L1 SRS-RSRP reporting in CSI-ResourceConfig, additional parameters may be configured for aperiodic SRS-RSRP reporting, such as the SRS resource set index used for the measurement and qcl information (qcl-info) for SRS reception:

[0044]

[0045] In some embodiments, when SRS 139 is configured as a CMR 118 for L1 SRS-RSRP reporting in CSI-ResourceConfig, there may be some restrictions. For example, only a single SRS resource can be configured as a CMR 118; or only a single SRS resource set can be configured as a CMR 118.

[0046] In some embodiments, when SRS 139 is configured as a CMR 118 for L1 SRS-RSRP reporting in CSI-ResourceConfig, various configurations may exist for the parameter timeRestrictionForChannelMeasurements. In some embodiments, timeRestrictionForChannelMeasurements may be ignored. UE 101 may always assume that timeRestrictionForChannelMeasurements = "configure" so that UE 101 may only measure and report the latest SRS no later than the CSI reference resource. In some other embodiments, the parameter timeRestrictionForChannelMeasurements may be set to "notConfigured". UE 101 may measure and report based on multiple SRS no later than the CSI reference resource. In some embodiments, filtering or averaging operations may be implemented autonomously by the UE. In some other embodiments, filtering or averaging operations may be further configured by the network or defined in the specification.

[0047] In some embodiments, for the parameter reportQuantity in CSI-ReportConfig, a new entry "SRS-RSRP" may be introduced as a candidate value for reportQuantity. In some embodiments, the existing parameter "L1-RSRP" may be reused for reportQuantity. CMR 118 may use SRS 139 instead of CSI-RS or SSB.

[0048] In some embodiments, the measurement report 117 may include the SRS-RSRP measurement 119 as a standalone report for the parameter reportQuantity in the CSI-ReportConfig. Therefore, no other reported quantities, including RI / CQI / PMI / LI / CRI / SSBRI, are reported along with the SRS-RSRP measurement 119. In some embodiments, the SRS-RSRP measurement 119 may be reported along with another reported quantity. For example, the SRS index may be reported, which is the index of the SRS resource for which the UE 101 measured the strongest or weakest RSRP. The base station 103 may also configure adjustments to the receive timing used for the SRS measurement. This configuration may be done in the RRC / MAC-CE / DCI.

[0049] At 304, UE 101 may receive SRS 139 from UE 102 in communication with UE 101 based on CSI configuration 116. In some implementations, SRS 139 is included in CMR 118.

[0050] At 306 , UE 101 may measure SRS 139 based on CSI configuration 116 to obtain SRS-RSRP measurement 119 .

[0051] At 308 , UE 101 may generate a measurement report 117 with an SRS-RSRP measurement 119 to provide an indication of the CLI between UE 101 and UE 102 .

[0052] In some embodiments, when generating the measurement report 117, the UE 101 may determine a priority between the measurement report 117 and other CSI reports, such as a link adaptation (LA)-CSI report or a BM-CSI report, based on the CSI configuration 116. When reporting the SRS-RSRP measurement 119 in L1, the priority of the SRS-RSRP report may be lower than LA-CSI; the same as LA-CSI; higher than LA-CSI; lower than BM-CSI; the same as BM-CSI; or higher than BM-CSI compared to other possible L1 CSI reports. In some embodiments, there may be two types of CSI reports: (1) BM-CSI, which may include L1-RSRP / L1-SINR reports, and (2) LA-CSI reports, which may include all other reports, where the BM-CSI report may have a higher priority than the LA-CSI report. In some embodiments, at a high level, the SRS-RSRP report 119 may have the same priority as one of the existing CSI reports (BM-CSI or LA-CSI). Additionally or alternatively, the SRS-RSRP report 119 may have a different priority than the existing CSI report.

[0053] In some embodiments, for periodic and semi-persistent SRS-RSRP reporting, the minimum SRS-RSRP processing time may be 4 ms when a single SRS resource is configured for measurement, or 5 ms when more than one SRS resource is configured for measurement. The SRS-RSRP processing time may be defined as the duration from the end of the last SRS used for measurement to the start of the SRS-RSRP report.

[0054] In some embodiments, for aperiodic SRS-RSRP reporting, in terms of low-latency reporting (which may be defined by Table 5.4-1 in standard document TS 38.214), UE 101 may not support low-latency aperiodic SRS-RSRP reporting. In some embodiments, UE 101 may support low-latency aperiodic SRS-RSRP reporting under one or more of the following conditions: CSI may be triggered in the absence of PUSCH (carrying neither transport blocks nor HARQ-ACK, or both), and L=0 CPUs are occupied. Therefore, when low-latency aperiodic SRS-RSRP is configured, aperiodic SRS-RSRP reporting needs to meet the Z and Z' timelines defined in Table 5.4-1 in TS 38.214.

[0055] In some embodiments, for aperiodic SRS-RSRP reporting, Z1 and Z1' may be used in conjunction with conventional latency reporting (which may be defined by Table 5.4-2 in TS 38.214). In some other embodiments, new Z and Z' may be defined in the specification or reported by the UE capability in RRC, which may be different from the existing Z1 and Z1' defined in TS 38.214.

[0056] At 310 , UE 101 may send a measurement report 117 to base station 103 using L1.

[0057] In some embodiments, processor 104 may also report UE capabilities 135 of UE 101 to base station 103, where CSI configuration 116 may be determined by base station 103 based on UE capabilities 135. UE capabilities 135 may include the number of CSI processing units (CPUs) supported by UE 101.

[0058] In some embodiments, the number of CPUs that UE 101 can support may be indicated by the UE capability, and UE 101 may include an existing CPU that includes CSI reporting based on CSI-RS and SSB. Additionally or alternatively, UE 101 may separately report the CPU used for SRS-RSRP reporting.

[0059] In some embodiments, the number of CPUs that UE 101 can support may be indicated by the UE capabilities, and for each CSI report, the occupied CPUs may be the number of SRS resources configured as CMRs. Additionally or alternatively, for each CSI report, the occupied CPU may be assumed to be one. Furthermore, for each CSI report, the occupied CPUs may be further reported by the UE capabilities. For different numbers of SRS resources configured as CMRs, UE 101 may report different numbers of occupied CPUs.

[0060] In some embodiments, for L1 SRS-RSRP reporting, for the number of active RSs that UE 101 can handle, UE 101 can treat SRS as existing active CSI-RS so that SRS can be configured in the same manner as CSI-RS. Additionally or alternatively, UE 101 can separately report the number of active RSs for SRS-RSRP reporting.

[0061] In some embodiments, for L1 SRS-RSRP reporting, for the number of active RSs that the UE can handle, each SRS resource may be counted as an active RS in the time slot in which it is transmitted. Additionally and alternatively, each SRS resource may be counted as an active RS even in the time slot in which the SRS resource is not transmitted. For aperiodic SRS, the time period during which it is counted as an active RS starts at the end of the PDCCH containing the request and ends at the end of the scheduled PUSCH containing the report. For semi-persistent SRS, the time period during which it is counted as an active RS starts at the end of the application activation command and ends at the end of the application deactivation command. For periodic SRS, the time period during which it is counted as an active RS starts when the periodic CSI-RS is configured by higher layer signaling and ends when the periodicity is reached.

[0062] Various aspects may be implemented, for example, using one or more computer systems such as Figure 4 The computer system 400 shown in FIG. 4 may be a computer system capable of performing the functions described herein for Figure 3 UE 101 shown or any computer operating as described in process 300, such as Figure 1 and Figure 2UE 101, UE 102, or base station 103 are shown. Computer system 400 includes one or more processors (also known as central processing units or CPUs), such as processor 404. Processor 404 is connected to a communication infrastructure 406 (e.g., a bus). Computer system 400 also includes user input / output devices 403, such as a monitor, keyboard, pointing device, etc., that communicate with communication infrastructure 406 through user input / output interface 402. Computer system 400 also includes main memory or primary storage 408, such as random access memory (RAM). Main memory 408 may include one or more levels of cache. Main memory 408 has stored therein control logic (e.g., computer software) and / or data.

[0063] The computer system 400 may also include one or more secondary storage devices or memories 410. The secondary storage 410 may include, for example, a hard drive 412 and / or a removable storage device or drive 414. The removable storage drive 414 may be a floppy disk drive, a tape drive, an optical drive, an optical storage device, a tape backup device, and / or any other storage device / drive.

[0064] The removable storage drive 414 can interact with a removable storage unit 418. The removable storage unit 418 includes a computer-usable or readable storage device having computer software (control logic) and / or data stored thereon. The removable storage unit 418 can be a floppy disk, a magnetic tape, an optical disk, a DVD, an optical storage disk, and / or any other computer data storage device. The removable storage drive 414 reads from and / or writes to the removable storage unit 418 in a well-known manner.

[0065] According to some aspects, secondary memory 410 may include other components, tools, or other methods for allowing computer system 400 to access computer programs and / or other instructions and / or data. Such components, tools, or other methods may include, for example, a removable storage unit 422 and an interface 420. Examples of removable storage unit 422 and interface 420 may include a program cartridge and a cartridge interface (such as that found in video game devices), a removable memory chip (such as an EPROM or PROM) and an associated socket, a memory stick and a USB port, a memory card and an associated memory card slot, and / or any other removable storage unit and associated interface.

[0066] In some examples, the main memory 408, the removable storage unit 418, and the removable storage unit 422 may store instructions that, when executed by the processor 404, cause the processor 404 to perform operations for a UE or a base station (e.g., Figure 1 and Figure 2UE 101, UE 102 or base station 103) for the operation of Figure 3 The operations of the UE 101 or process 300 are shown.

[0067] The computer system 400 may also include a communication or network interface 424. The communication interface 424 enables the computer system 400 to communicate and interact with any combination of remote devices, remote networks, remote entities, etc. (individually and collectively referenced by reference numeral 428). For example, the communication interface 424 may allow the computer system 400 to communicate with the remote device 428 via a communication path 426, which may be wired and / or wireless and may include any combination of a LAN, a WAN, the Internet, etc. Control logic and / or data may be sent to and from the computer system 400 via the communication path 426. The operations of the communication interface 424 may be performed by a wireless controller and / or a cellular controller. The cellular controller may be a separate controller to manage communications according to different wireless communication technologies. The operations in the aforementioned aspects may be implemented in various configurations and architectures. Thus, some or all of the operations in the aforementioned aspects may be performed in hardware, software, or both. In some aspects, a tangible, non-transitory device or article of manufacture includes a tangible, non-transitory computer-usable or readable medium having control logic (software) stored thereon, also referred to herein as a computer program product or program storage device. This includes, but is not limited to, computer system 400, main memory 408, secondary memory 410, and removable storage units 418 and 422, as well as tangible articles of manufacture embodying any combination of the foregoing. Such control logic, when executed by one or more data processing devices (such as computer system 400), causes such data processing devices to operate as described herein.

[0068] Based on the teachings contained in this disclosure, it will be apparent to those skilled in the relevant art how to use Figure 4 The various aspects of the present disclosure may be made and used with data processing devices, computer systems, and / or computer architectures other than those shown. In particular, the various aspects may operate with software, hardware, and / or operating system implementations other than those described herein.

[0069] It should be understood that the Detailed Description section, rather than the Summary and Abstract sections, is intended to be used to interpret the claims. The Summary and Abstract sections may set forth one or more, but not all, exemplary aspects of the present disclosure as contemplated by the inventors, and thus, are not intended to limit the present disclosure or the appended claims in any way.

[0070] Although the present disclosure has been described herein with reference to exemplary aspects of exemplary fields and applications, it should be understood that the present disclosure is not limited thereto. Other aspects and modifications are possible and are within the scope and essence of the present disclosure. For example, and without limiting the generality of this paragraph, the various aspects are not limited to the software, hardware, firmware and / or entities illustrated in the figures and / or described herein. In addition, the various aspects (whether or not explicitly described herein) have significant practicality for fields and applications beyond the examples described herein.

[0071] Various aspects have been described herein with reference to functional building blocks illustrating specific implementations of specific functions and relationships thereof. For ease of description, the boundaries of these functional building blocks have been arbitrarily defined herein. Alternative boundaries may be defined so long as the specified functions and relationships (or their equivalents) are appropriately performed. Additionally, alternative aspects may perform functional blocks, steps, operations, methods, etc., in an order different from that described herein.

[0072] References herein to "one embodiment," "an embodiment," "an example embodiment," or similar phrases indicate that the described embodiment may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Furthermore, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the relevant art to incorporate such feature, structure, or characteristic into other aspects, whether or not explicitly mentioned or described herein.

[0073] The breadth and scope of the present disclosure should not be limited by any of the above-described exemplary aspects, but should be defined only in accordance with the following claims and their equivalents.

[0074] For one or more embodiments or examples, at least one of the components described in one or more of the preceding figures may be configured to perform one or more operations, techniques, processes, and / or methods described below in the Examples section. For example, circuitry associated with a thread device, router, network element, or the like as described above in conjunction with one or more of the preceding figures may be configured to operate according to one or more of the embodiments described below in the Examples section.

[0075] This disclosure anticipates that entities responsible for the collection, analysis, disclosure, transfer, storage, or other use of such personal information will adhere to robust privacy policies and / or privacy practices. Specifically, such entities should implement and adhere to privacy policies and practices that are recognized as meeting or exceeding industry or government requirements for maintaining the privacy and security of personal information. Such policies should be easily accessible to users and updated as changes occur in the collection and / or use of data. Personal information from users should be collected for legitimate and reasonable entity purposes and should not be shared or sold outside of those legitimate purposes. Furthermore, such collection / sharing should only be conducted with the user's informed consent. Additionally, such entities should consider taking any necessary steps to protect and safeguard access to such personal information and ensure that other entities with access to personal information comply with the other entity's privacy policies and procedures. Furthermore, such entities may subject themselves to third-party assessments to demonstrate compliance with widely accepted privacy policies and privacy practices. Furthermore, policies and practices should be tailored to the specific type of personal information being collected and / or accessed, and to applicable laws and standards, including jurisdictional considerations. For example, in the United States, the collection or access of certain health data may be governed by federal and / or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA); whereas health data in other countries may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy measures should be advocated for different types of personal data in each country.

Claims

1. A first user equipment (UE), comprising: a transceiver configured to enable wireless communication with a base station and a second UE in the wireless system; and a processor communicatively coupled to the transceiver and configured to: determining a channel state information (CSI) configuration received from the base station; receiving a sounding reference signal (SRS) from the second UE based on the CSI configuration; measuring the SRS to determine an SRS reference signal received power (SRS-RSRP) measurement; generating a measurement report with the SRS-RSRP measurement to provide an indication of cross-link interference (CLI) between the first UE and the second UE; and The measurement report is sent to the base station using a physical layer (L1). 2 . The first UE according to claim 1 , wherein, in order to send the measurement report using L1, the processor is configured to send the measurement report in an aperiodic manner, a periodic manner, or a semi-persistent manner.

3. The first UE according to claim 1, wherein the CSI configuration includes a subcarrier spacing (SCS) of the SRS, and a serving cell identifier of a serving cell supporting the first UE and the second UE. 4 . The first UE according to claim 1 , wherein the CSI configuration comprises a CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and wherein one or more SRS resource sets in the SRS resource sets can be configured by the CSI-ResourceConfig parameter.

5. The first UE according to claim 4, wherein the CSI configuration comprises an SRS resource set index, and the processor is further configured to: measuring the SRS based on the SRS resource set index to determine the SRS-RSRP measurement; and The measurement report is sent in an aperiodic measurement report, a periodic measurement report, or a semi-persistent measurement report.

6. The first UE according to claim 4, wherein the SRS is included in a channel measurement resource (CMR), and the channel measurement resource (CMR) is configured to include a single SRS resource or a single SRS resource set according to a CSI-ResourceConfig parameter included in the CSI configuration. 7 . The first UE according to claim 1 , wherein, to measure the SRS to determine the SRS-RSRP measurement, the processor is configured to measure a latest SRS among a plurality of SRSs that is no later than a CSI reference resource.

8. The first UE according to claim 1 , wherein the measurement report is an independent report without carrying another reference measurement, comprising: RI (Rank Indicator), Channel Quality Information (CQI), Precoding Matrix Indicator (PMI), Layer Indicator (LI), CSI-RS Resource Indicator (CRI), or Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) Resource Block Indicator (SSBRI). 9 . The first UE according to claim 1 , wherein the CSI configuration includes an adjustment of a reception timing for measuring the SRS. 10 . The first UE of claim 1 , wherein the CSI configuration is received from the base station through a radio resource control (RRC) message, a medium access control-control element (MAC-CE), or downlink control information (DCI).

11. The first UE according to claim 1, wherein the CSI configuration further includes a priority between the measurement report, the link adaptation (LA)-CSI report or the beam measurement (BM)-CSI report. 12 . The first UE of claim 1 , wherein the CSI configuration further includes an SRS-RSRP processing time for the first UE to measure the SRS to determine the SRS-RSRP measurement and to send the measurement report to the base station using L1.

13. The first UE according to claim 1, wherein the processor is further configured to: The UE capability of the first UE is reported to the base station, so that the base station can determine the CSI configuration based on the UE capability of the first UE.

14. The first UE according to claim 13, wherein the UE capability comprises the number of CSI processing units (CPUs) supported by the first UE.

15. A method for a first user equipment (UE), the method comprising: determining a channel state information (CSI) configuration received from a base station in communication with the first UE; receiving a sounding reference signal (SRS) from a second UE communicating with the first UE based on the CSI configuration; measuring the SRS to determine an SRS reference signal received power (SRS-RSRP) measurement; generating a measurement report with the SRS-RSRP measurement to provide an indication of cross-link interference (CLI) between the first UE and the second UE; and The measurement report is sent to the base station using a physical layer (L1).

16. The method of claim 15, wherein the CSI configuration includes a subcarrier spacing (SCS) of the SRS, and a serving cell identifier of a cell supporting the first UE and the second UE.

17. The method of claim 15, wherein the measurement report is a standalone report without carrying another reference measurement, comprising: RI (Rank Indicator), Channel Quality Information (CQI), Precoding Matrix Indicator (PMI), Layer Indicator (LI), CSI-RS Resource Indicator (CRI), or Synchronization Signal (SS) and Physical Broadcast Channel (PBCH) Resource Block Indicator (SSBRI).

18. The method of claim 15, wherein: The CSI configuration includes an adjustment of a reception timing for measuring the SRS; The CSI configuration is received from the base station via a radio resource control (RRC) message, a medium access control-control element (MAC-CE), or downlink control information (DCI); The CSI configuration further includes a priority between the measurement report, the link adaptation (LA)-CSI report or the beam measurement (BM)-CSI report; and The CSI configuration includes a CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and one or more SRS resource sets in the SRS resource set can be configured by the CSI-ResourceConfig parameter.

19. A non-transitory computer-readable medium storing instructions that, when executed by a processor of a first user equipment (UE), cause the first UE to perform operations comprising: determining a channel state information (CSI) configuration received from a base station in communication with the first UE; receiving, based on the CSI configuration, a channel measurement resource (CMR) including a sounding reference signal (SRS) from a second UE communicating with the first UE; measuring the SRS to determine an SRS reference signal received power (SRS-RSRP) measurement; generating a measurement report with the SRS-RSRP measurement to provide an indication of cross-link interference (CLI) between the first UE and the second UE; and The measurement report is sent to the base station using a physical layer (L1).

20. The non-transitory computer-readable medium of claim 19, wherein: The CSI configuration includes an adjustment of a reception timing for measuring the SRS; The CSI configuration is received from the base station via a radio resource control (RRC) message, a medium access control-control element (MAC-CE), or downlink control information (DCI); The CSI configuration further includes a priority between the measurement report, the link adaptation (LA)-CSI report or the beam measurement (BM)-CSI report; and The CSI configuration includes a CSI-ReportConfig parameter or a CSI-ResourceConfig parameter, and one or more SRS resource sets in the SRS resource set can be configured by the CSI-ResourceConfig parameter.

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