Methods of reporting CSI measurement, receiving CSI measurement report, and relevant devices
Early CSI measurement and reporting for candidate cells address the delay in MCS selection during cell handover, reducing interrupt time and latency in wireless communication systems.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2026-04-09
AI Technical Summary
Existing wireless communication systems do not provide channel state information (CSI) of candidate cells until cell switch is completed, leading to suboptimal MCS selection during cell handover, which increases interrupt time and latency.
Early reporting of CSI measurement for candidate cells by configuring terminal devices with physical reference signal resources and enabling them to report CSI results to the network, allowing for high-order MCS application and minimizing interrupt time during lower layer triggered mobility.
Minimizes interrupt time and latency by enabling early-stage CSI reporting, ensuring reliable and efficient handover processes in wireless communication systems.
Smart Images

Figure CN2025115628_09042026_PF_FP_ABST
Abstract
Description
METHODS OF REPORTING CSI MEASUREMENT, RECEIVING CSI MEASUREMENT REPORT, AND RELEVANT DEVICES
[0001] BACKGROUND OF DISCLOSURE
[0002] 1. Field of the Disclosure
[0003] The present application relates to wireless communication technologies, and more particularly, to a method of reporting channel state information (CSI) measurement, a method of receiving CSI measurement report, and relevant devices.2. Description of the Related Art
[0004] In cellular wireless communication systems developed by the Third Generation Partnership Project (3GPP) , user equipment (UE) is connected by a wireless link to a radio access network (RAN) . The RAN includes a set of base stations (BSs) which provide wireless links to UEs located in cells covered by the base station and an interface to a core network (CN) which provides overall network control. The RAN and CN each conduct respective functions in relation to the overall network. The so-called 4G Long Term Evolution (LTE) system, namely, an Evolved Universal Mobile Telecommunication System Territorial Radio Access Network (E-UTRAN) has been developed for a mobile access network where one or more macro-cells are supported by a base station known as an eNodeB or eNB (evolved NodeB) . Evolved from LTE, the so-called 5G or new radio (NR) systems where one or more cells are supported by a base station known as a gNB. Envisioned to succeed the current 5G networks, the 6G cellular system is the forthcoming generation of wireless communication technology.
[0005] NR / 5G system supports the function of lower layer triggered mobility (LTM) , which can also be called L1 / L2 triggered mobility. To support LTM, the function of L1 measurement and reporting of candidate cells is also supported in NR / 5G system.
[0006] For that, the UE is first configured some candidate cells and SS / PBCH blocks per candidate cell. The configured SS / PBCH per candidate cell is for the UE to obtain synchronization and measurement corresponding L1-RSRPs. In other words, the UE can measure the L1-RSRP on the configured SS / PBCH blocks of each configured candidate cell. For L1 measurement and reporting of candidate cell, the UE is provided configuration by RRC parameter LTM-CSI-ReportConfigToAddModList for reporting L1-RSRP measurements. The configuration includes a number of candidate cells, a number of SS / PBCH blocks per candidate cell of those configured candidate cell. Each reporting configuration LTM-CSI-ReportConfig is associated with a LTM-CSI-ResourceConfig for L1-RSRP measurement. Each LTM CSI resource setting LTM-CSI-ResourceConfig contains a list of Z >=1 SS / PBCH block indices and a list of Z LTE candidate cell IDs referring to candidate cells associated with the SS / PBCH block indices. For each candidate cell configured here, the UE can determine the time domain behavior of a SS / PBCH block and the frequency domain behavior of the SS / PBCH from the higher layer parameter configuration of the SS / PBCH contained in the configuration of the corresponding candidate cell.
[0007] The UE can be configured to report the L1 measurement of K candidate cells and for each reported candidate cell, the UE can be requested to report L1 measurement of N SS / PBCH blocks. So, in each reporting instance, the UE would report L1-RSRP measurement of K*N SS / PBCH blocks. The UE can also be configured to include the measurement of serving cell. When that is configured, one of those reported K candidate cells shall be the serving cell.
[0008] The LTM L1 RSRP measurement reporting supports the following reporting behavior: aperiodic reporting on PUSCH, semi-persistent reporting on PUSCH, semi-persistent reporting on PUCCH and periodic reporting on PUCCH.
[0009] The main drawback of existing method is the system does not know the CSI of candidate cell until the cell switch is completed. The consequence is during the establishment of connection to the target cell, the system can only choose the lowest MCS to ensure link reliability, which is called “interrupt time” .SUMMARY
[0010] An object of the present application is to propose methods of reporting channel state information (CSI) measurement, receiving CSI measurement report and relevant devices, which can solve issues in the relevant arts, report CSI measurement of a target cell at very early stage, minimize the interrupt time of lower layer triggered mobility (LTM) , reduce latency, provide a good communication performance, and / or provide high reliability.
[0011] In a first aspect, some embodiments of the present application provide a method of reporting channel state information (CSI) measurement, performed by a terminal device, including receiving from a network device a higher layer parameter configuring a plurality of candidate cells and being indicated one or more physical reference signal (RS) resources for each of the candidate cells; measuring the one or more physical RS resources of at least one of the candidate cells to obtain CSI measurement results; and reporting the CSI measurement results to the network device.
[0012] In a second aspect, some embodiments of the present application provide a method of receiving channel state information (CSI) measurement report, performed by a network device, including sending to a terminal device a higher layer parameter configuring a plurality of candidate cells and indicating the terminal device with one or more physical reference signal (RS) resources for each of the candidate cells; and receiving a report from the terminal device about CSI measurement results, which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device.
[0013] In a third aspect, some embodiments of the present application provide a terminal device, including a memory; and a processor coupled to the memory, wherein the processor is configured to call and run program instructions stored in the memory, to execute the method described in the first aspect.
[0014] In a fourth aspect, some embodiments of the present application provide a network device, including a memory; and a processor coupled to the memory, wherein the processor is configured to call and run program instructions stored in the memory, to execute the method described in the second aspect.
[0015] In a fifth aspect, some embodiments of the present application provide a terminal device, including a first receiving module, configured to receive from a network device a higher layer parameter configuring a plurality of candidate cells and being indicated one or more physical reference signal (RS) resources for each of the candidate cells; a measuring module, configured to measure the one or more physical RS resources of at least one of the candidate cells to obtain channel state information (CSI) measurement results; and a reporting module, configured to report the CSI measurement results to the network device.
[0016] In a sixth aspect, some embodiments of the present application provide a network device, including a sending module, configured to send to a terminal device a higher layer parameter configuring a plurality of candidate cells and indicating the terminal device with one or more physical reference signal (RS) resources for each of the candidate cells; and a second receiving module, configured to receive a report from the terminal device about channel state information (CSI) measurement results, which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device.
[0017] In a seventh aspect, some embodiments of the present application provide a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to execute any of the above methods.
[0018] In an eighth aspect, some embodiments of the present application provide a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute any of the above methods.
[0019] In a ninth aspect, some embodiments of the present application provide a computer readable storage medium, in which a computer program is stored, causing a computer to execute any of the above methods.
[0020] In a tenth aspect, some embodiments of the present application provide a computer program product includes a computer program, and the computer program causes a computer to execute any of the above methods.
[0021] In an eleventh aspect, some embodiments of the present application provide a computer program that causes a computer to execute any of the above methods.BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to illustrate the embodiments of the present application or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present application, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.
[0023] FIG. 1 is a block diagram of a terminal device and a network device in a wireless communication system according to an embodiment of the present application.
[0024] FIG. 2 is a flowchart of a method of reporting CSI measurement by a terminal device according to an embodiment of the present application.
[0025] FIG. 3 is a flowchart of a method of receiving CSI measurement report by a network device according to an embodiment of the present application.
[0026] FIG. 4 is a block diagram of a terminal device according to an embodiment of the present application.
[0027] FIG. 5 is a block diagram of a network device according to an embodiment of the present application.
[0028] FIG. 6 is a block diagram of a system for wireless communication according to an embodiment of the present application.DETAILED DESCRIPTION OF EMBODIMENTS
[0029] Embodiments of the present application are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present application are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.
[0030] In this document, the symbol " / " should be interpreted to indicate "and / or. " A combination such as “at least one of A, B, or C, ” “one or more of A, B, or C, ” “at least one of A, B, and C, ” “one or more of A, B, and C, ” or “A, B, and / or C” may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, where any combination may contain one or more members of A, B, or C.
[0031] The following table includes some abbreviations or explanations that may be used in some embodiments of the present application:
[0032] The present application provides exemplary techniques for CSI measurement and reporting for candidate cell in L1 / L2 triggered mobility (LTM) , which include the configuration of reference signal (RS) and reporting configuration, and the method of reporting CSI measurement of candidate cells.
[0033] FIG. 1 illustrates that, in some embodiments, one or more terminal device (e.g., user equipments (UEs) ) 10 and one or more network devices (e.g., base stations or gNBs) 20 in a wireless communication system 30 according to an embodiment of the present application are provided. The wireless communication system 30 includes the one or more terminal devices 10 and one or more network devices 20. The one or more terminal devices 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The one or more network devices 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and / or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and / or receives a radio signal. When the wireless communication system 30 complies with the New Radio (NR) standard of the 3rd Generation Partnership Project (3GPP) , the next generation core network is a backend serving network system and may include an Access and Mobility Management Function (AMF) , User Plane Function (UPF) , and a Session Management Function (SMF) . In one aspect, the terminal device 10 can include almost any consumer electronic device or appliance that can connect to a radio access network and a core network for the releases of 3GPP and further, such as, but not limited to NR networks.
[0034] The processor 11 or 21 may include application-specific integrated circuit (ASIC) , other chipset, logic circuit and / or data processing device. The memory 12 or 22 may include read-only memory (ROM) , random access memory (RAM) , flash memory, memory card, storage medium and / or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
[0035] In some embodiments, the processor 11 of the terminal device 10 is utilized to receive from a network device a higher layer parameter configuring a plurality of candidate cells and be indicated one or more physical reference signal (RS) resources for each of the candidate cells, measure the one or more physical RS resources of at least one of the candidate cells to obtain CSI measurement results, and report the CSI measurement results to the network device. This facilitates reporting the CSI measurement of the candidate cell (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage, thereby minimizing the interrupt time of LTM.
[0036] In some embodiments, the processor 21 of the network device 20 is utilized to send to a terminal device a higher layer parameter configuring a plurality of candidate cells and indicating the terminal device with one or more physical reference signal (RS) resources for each of the candidate cells, and receive a report from the terminal device about CSI measurement results, which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device. This facilitates receiving the CSI measurement report of the candidate cell (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage, thereby minimizing the interrupt time of LTM.
[0037] FIG. 2 illustrates a method of reporting channel state information (CSI) measurement 100 by a terminal device according to an embodiment of the present application. In some embodiments, the method 100 includes the following.
[0038] In Block 102, the terminal device (e.g., a user equipment (UE) ) receives from a network device (e.g., a base station or gNB) a higher layer parameter (e.g., a RRC parameter (e.g., LTM-Config) ) configuring a plurality of candidate cells and is indicated one or more physical reference signal (RS) resources (e.g., channel state information-reference signal (CSI-RS) resources) for each of the candidate cells.
[0039] In Block 104, the terminal device measures the one or more physical RS resources of at least one of the candidate cells to obtain CSI measurement results (e.g., CRI, RI, CQI, and / or PMI) .
[0040] For example, the CSI measurement results of the at least one of the candidate cells may include one or more of the following information: at least one indicator to indicate the at least one of the candidate cells; a CSI-RS resource indicator (CRI) to indicate the CSI-RS resource of the at least one of the candidate cells; a channel quality indicator (CQI) of the at least one of the candidate cells; a precoding matrix indicator (PMI) to indicate one wideband precoder; a rank indicator (RI) to indicate a rank of the at least one of the candidate cells; subband PMI; and subband CQI.
[0041] In Block 106, the terminal device reports the CSI measurement results to the network device.
[0042] More specifically, the CSI measurement results of the at least one of the candidate cells may be reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) . In addition, the reporting of the CSI measurement results of the at least one of the candidate cells to the network device may be periodic, semi-persistent or aperiodic.
[0043] The CSI measurement results may be reported based on a CSI report configuration (e.g., LTM-CSI-ReportConfig) configured by the network device, and the CSI report configuration may include one or more of the following information: a configuration of CSI report quantity; a configuration of codebook type; and a configuration of PMI format.
[0044] In some embodiments, the terminal device may receive an indication via a media access control control element (MAC CE) message to measure and report the CSI measurement results for the at least one of the candidate cells. More specifically, for cell switch, the terminal device may receive a cell switch command MAC CE message that indicates the terminal device to switch from a serving cell serving the terminal device to a target cell. The cell switch command MAC CE message may be further used to indicate or trigger the terminal device to measure and report the CSI measurement results of the target cell during the cell switch procedure.
[0045] In some embodiments, the cell switch command MAC CE message may include one or more of the following information: a target configuration identifier (ID) , which indicates which candidate cell is the target cell; a timing advance command to indicate a value of timing advance for the terminal device to use in the target cell; a joint transmission configuration indicator (TCI) state or a pair of downlink (DL) TCI state and uplink (UL) TCI state for the target cell; an indicator to indicate a CSI report configuration of the target cell; and an indicator to indicate the terminal device to measure and report the CSI measurement results of the target cell.
[0046] In some embodiments, the CSI measurement results of the at least one of the candidate cells may be reported in a MAC CE message, which may include one or more of the following information: an indicator to indicate one candidate cell; an indicator to indicate a CSI report configuration of the indicated candidate cell; and the CSI measurement results. More specifically, for cell switch, the CSI measurement results of the target cell the terminal device is to switch to may be reported during the cell switch procedure in a MAC CE message, which may include one or more of the following information: an indicator to indicate a CSI report configuration of the target cell; and the CSI measurement results.
[0047] In some embodiments, the terminal device may receive an indication via a downlink control information (DCI) to trigger the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells based on a CSI report configuration. The CSI report configuration is associated with the one or more physical RS resources that are used for CSI measurement, and CSI report quantity. The DCI may contain a CSI request field associated with a trigger state, and based on an indication of the trigger state, the CSI measurement on the at least one of the candidate cells is performed according to the CSI report configuration and the CSI measurement results of the at least one of the candidate cells are aperiodically reported according to the CSI report configuration.
[0048] With the proposed method 100 of reporting CSI measurement, the terminal device can report the CSI measurement of the at least one of the candidate cells (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage so that the at least one of the candidate cells (especially, the target cell) can apply high order MCS (Modulation and Coding Scheme) at early stage. Therefore, the interrupt time of LTM can be minimized.
[0049] FIG. 3 illustrates a method of receiving channel state information (CSI) measurement report 200 by a network device according to an embodiment of the present application. In some embodiments, the method 200 includes the following. In Block 202, the network device (e.g., base station or gNB) sends to a terminal device (e.g., a user equipment (UE) ) a higher layer parameter (e.g., a RRC parameter (e.g., LTM-Config) ) configuring a plurality of candidate cells and indicates the terminal device with one or more physical reference signal (RS) resources (e.g., channel state information-reference signal (CSI-RS) resources) for each of the candidate cells. In Block 204, the network device receives a report from the terminal device about CSI measurement results (e.g., CRI, RI, CQI, and / or PMI) , which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device. More specifically, the CSI measurement results of the at least one of the candidate cells may be received through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) . In addition, the CSI measurement results of the at least one of the candidate cells may be received by the network device periodically, semi-persistently or aperiodically. This facilitates receiving the CSI measurement report of the candidate cell (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage, thereby minimizing the interrupt time of LTM. Other details of the method 200 may be referred to the method 100 described above and are not repeated herein.
[0050] Further details about the invention are provided below.
[0051] In some implementations, a UE can be indicated candidate cells through higher layer parameter LTM-Config and CSI-RS resources per candidate cell for the UE to measure CSI. For a first candidate cell, the UE can be provided with one non-zero-power (NZP) CSI-RS resource and the UE can be requested to measure the NZP CSI-RS resource of the first candidate cell and then the UE can be requested to report the CSI measurement results to the system. The UE can be requested to measure and report one or more of the following CSI measurements of the first candidate cell:
[0052] · One indicator to indicate the first candidate cell
[0053] · CRI to indicate the CSI-RS resource of the first candidate cell used to calculate the reported CSI
[0054] · A CQI of the first candidate cell
[0055] · A PMI to indicate one wideband precoder
[0056] · A RI to indicate the rank of the first candidate cell
[0057] · Subband PMI
[0058] · Subband CQI
[0059] In one example, the system can indicate the UE to measure and report the CSI measurement for the first candidate cell through a MAC CE message. In one example, the system can indicate the UE to measure and report the CSI measurement of the target cell through the LTM Cell Switch command MAC CE. The UE can be requested to report CSI measurement of one candidate cell to the serving cell through a PUSCH or PUCCH, where the CSI report can be periodic, semi-persistent or aperiodic.
[0060] In some implementations, the UE can be provided a list of candidate cells through higher layer parameter, for example the RRC parameter LTM-Config. For each candidate cell, the UE can be provided with one or more CSI-RS resources for the UE to measure CSI of the candidate cell. In one example, in RRC parameter LTM-CSI-ReportConfig, the UE can be provided with one or more of the following configuration information:
[0061] · The configuration of CSI report quantity: the UE can be configured to report one or more of the following: CQI, CRI, RI, wideband PMI.
[0062] · The configuration of codebook type: the configuration can be TypeI-single panel.
[0063] · The configuration of PMI format: the configuration can be wideband PMI. The configuration can be subband PMI.
[0064] In some implementations, the system can send a LTM Cell Switch command MAC CE to the UE to indicate the UE to switch from the serving cell to a first target cell. The system can also use the LTM cell switch command MAC CE to request the UE to measure and report the CSI report for the first target cell. In the LTM cell switch command MAC CE, the system can indicate one or more of the following information elements:
[0065] · A target configuration ID, which indicates which candidate cell is the first target cell.
[0066] · A timing advance command to indicate the value of timing advance for the UE to use in the first target cell.
[0067] · One joint TCI state or a pair of DL TCI state and UL TCI state for the first target cell.
[0068] · One indicator to indicate a LTM CSI report configuration of the target cell, which the UE shall use to measure and report the CSI of the target cell.
[0069] · One indicator to indicate the UE to measure and report the CSI of the target cell. With this indicator, the UE shall measure and report the CSI of the target cell according one pre-configured LTM CSI report configuration of the target cell.
[0070] In some implementations, the UE can report the CSI measurement of the target cell during LTM cell switch in a MAC CE. In the MAC CE message, the UE can be requested to report one or more of the following:
[0071] · One indicator to indicate a first LTM CSI report configuration of the target cell. The UE reports the CSI measurement that is measured and calculated according to the indicated the first LTM CSI report configuration.
[0072] · The CSI measurement results which can include, e.g., CRI, RI, CQI, and / or PMI.
[0073] · In some implementations, the UE can report the CSI measurement of one candidate cell in a MAC CE. In the MAC CE message, the UE can be requested to report one or more of the following:
[0074] · One indicator to indicate one candidate cell.
[0075] · One indicator to indicate a first LTM CSI report configuration of the indicated candidate cell. The UE reports the CSI measurement that is measured and calculated according to the indicated the first LTM CSI report configuration.
[0076] · The CSI measurement results which can include, e.g., CRI, RI, CQI, and / or PMI.
[0077] In some implementations, the serving cell can use DCI to trigger the UE to report CSI measurement of one candidate cell. For the candidate cell, the UE can be provided with a LTM CSI report configuration which can be associated with one or more NZP CSI-RS resources that are used for CSI measurement, and the CSI report quantity. The LTM CSI report configuration can be associated with one aperiodic CSI trigger state. The serving cell can send one DCI containing a DCI field ‘CSI request’a nd each codepoint of this DCI field is associated with a trigger state. Upon reception of the value associated with this trigger state, the UE will perform CSI measurement according to the LTM CSI report configuration and then perform aperiodic reporting on PUSCH according to the configuration of the LTM CSI report configuration.
[0078] FIG. 4 illustrates a terminal device 300 according to an embodiment of the present application. The terminal device (e.g., a user equipment (UE) ) 300 includes a first receiving module 301, a measuring module 302 and a reporting module 303. The first receiving module 301 is configured to receive from a network device (e.g., base station or gNB) a higher layer parameter (e.g., a RRC parameter (e.g., LTM-Config) ) configuring a plurality of candidate cells and be indicated one or more physical reference signal (RS) resources (e.g., channel state information-reference signal (CSI-RS) resources) for each of the candidate cells. The measuring module 302 is configured to measure the one or more physical RS resources of at least one of the candidate cells to obtain channel state information (CSI) measurement results (e.g., CRI, RI, CQI, and / or PMI) . The reporting module 303 is configured to report the CSI measurement results to the network device. More specifically, the CSI measurement results of the at least one of the candidate cells may be reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) . In addition, the reporting of the CSI measurement results of the at least one of the candidate cells to the network device may be periodic, semi-persistent or aperiodic. This facilitates reporting the CSI measurement of the candidate cell (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage, thereby minimizing the interrupt time of LTM.
[0079] FIG. 5 illustrates a network device 400 according to an embodiment of the present application. The network device (e.g., base station or gNB) 400 includes a sending module 401 and a second receiving module 402. The sending module 401 is configured to send to a terminal device (e.g., a user equipment (UE) ) a higher layer parameter (e.g., a RRC parameter (e.g., LTM-Config) ) configuring a plurality of candidate cells and indicates the terminal device with one or more physical reference signal (RS) resources (e.g., channel state information-reference signal (CSI-RS) resources) for each of the candidate cells. The second receiving module 402 is configured to receive a report from the terminal device about channel state information (CSI) measurement results (e.g., CRI, RI, CQI, and / or PMI) , which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device. More specifically, the CSI measurement results of the at least one of the candidate cells may be received through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) . In addition, the CSI measurement results of the at least one of the candidate cells may be received by the second receiving module 402 periodically, semi-persistently or aperiodically. This facilitates receiving the CSI measurement report of the candidate cell (especially, the target cell) of lower layer triggered mobility (LTM) at very early stage, thereby minimizing the interrupt time of LTM.
[0080] The embodiment of the present application further provides a computer readable storage medium for storing a computer program. The computer readable storage medium enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0081] The embodiment of the present application further provides a computer program product including computer program instructions. The computer program product enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0082] The embodiment of the present application further provides a computer program. The computer program enables a computer to execute corresponding processes implemented in each of the methods of the embodiments of the present application. For brevity, details will not be described herein again.
[0083] The description of above device embodiments is similar to the description of above method embodiments, having beneficial effects similar to the method embodiments. For technical details not disclosed in the device embodiments of the present application, please refer to the description of the method embodiments of the present application for the purpose of understanding.
[0084] Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Reporting CSI measurement of a target cell at very early stage. 3. Minimize the interrupt time of lower layer triggered mobility (LTM) . 4. Reducing latency. 5. Providing a good communication performance. 6. Providing high reliability. Some embodiments of the present application are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles) , smartphone makers, communication devices for public safety use, AR / VR device maker for example gaming, conference / seminar, education purposes. The deployment scenarios include, but not limited to, indoor hotspot, dense urban, urban micro, urban macro, rural, factor hall, and indoor D2D scenarios. Some embodiments of the present application are a combination of “techniques / processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present application could be adopted in 5G NR licensed and non-licensed or shared spectrum communications. Some embodiments of the present application propose technical mechanisms. The present example embodiment is applicable to NR in unlicensed spectrum (NR-U) . The present application can be applied to other mobile networks, in particular to mobile network of any further generation cellular network technology (6G, etc. ) .
[0085] FIG. 6 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present application. Embodiments described herein may be implemented into the system using any suitably configured hardware and / or software. FIG. 6 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory / storage 740, a display 750, a camera 760, a sensor 770, and an input / output (I / O) interface 780, coupled with each other at least as illustrated. The application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory / storage and configured to execute instructions stored in the memory / storage to enable various applications and / or operating systems running on the system.
[0086] The baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) , 5G NR (New Radio) network, and / or other wireless metropolitan area networks (WMAN) , a wireless local area network (WLAN) , a wireless personal area network (WPAN) . Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.
[0087] In various embodiments, the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
[0088] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and / or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , and / or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and / or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and / or the memory / storage may be implemented together on a system on a chip (SOC) . The memory / storage 740 may be used to load and store data and / or instructions, for example, for system. The memory / storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM) , and / or non-volatile memory, such as flash memory.
[0089] In various embodiments, the I / O interface 780 may include one or more user interfaces designed to enable user interaction with the system and / or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and / or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and / or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
[0090] In various embodiments, the display 750 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR / VR glasses, etc. In various embodiments, system may have more or less components, and / or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.
[0091] A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present application are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present application. It is understood by a person having ordinary skill in the art that he / she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed.
[0092] It is understood that the disclosed system, device, and method in the embodiments of the present application can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms.
[0093] The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
[0094] If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present application can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present application. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM) , a random access memory (RAM) , a floppy disk, or other kinds of media capable of storing program codes.
[0095] While the present application has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present application is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.
Claims
1.A method of reporting channel state information (CSI) measurement, performed by a terminal device, comprising:receiving from a network device a higher layer parameter configuring a plurality of candidate cells and being indicated one or more physical reference signal (RS) resources for each of the candidate cells;measuring the one or more physical RS resources of at least one of the candidate cells to obtain CSI measurement results; andreporting the CSI measurement results to the network device.2.The method of claim 1, wherein the terminal device receives an indication via a media access control control element (MAC CE) message to measure and report the CSI measurement results for the at least one of the candidate cells.3.The method of claim 1, further comprising:receiving a cell switch command MAC CE message indicating the terminal device to switch from a serving cell serving the terminal device to a target cell.4.The method of claim 3, wherein the cell switch command MAC CE message is further used to indicate the terminal device to measure and report the CSI measurement results of the target cell.5.The method of claim 4, wherein the cell switch command MAC CE message comprises one or more of the following information:a target configuration identifier (ID) , which indicates which candidate cell is the target cell;a timing advance command to indicate a value of timing advance for the terminal device to use in the target cell;a joint transmission configuration indicator (TCI) state or a pair of downlink (DL) TCI state and uplink (UL) TCI state for the target cell;an indicator to indicate a CSI report configuration of the target cell; andan indicator to indicate the terminal device to measure and report the CSI measurement results of the target cell.6.The method of any of claims 1 to 5, wherein the CSI measurement results of the at least one of the candidate cells are reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) .7.The method of any of claims 1 to 6, wherein the reporting of the CSI measurement results of the at least one of the candidate cells to the network device is periodic, semi-persistent or aperiodic.8.The method of any of claims 1 to 7, wherein the one or more physical RS resources comprise channel state information-reference signal (CSI-RS) resource.9.The method of claim 8, wherein the CSI measurement results of the at least one of the candidate cells comprises one or more of the following information:at least one indicator to indicate the at least one of the candidate cells;a CSI-RS resource indicator (CRI) to indicate the CSI-RS resource of the at least one of the candidate cells;a channel quality indicator (CQI) of the at least one of the candidate cells;a precoding matrix indicator (PMI) to indicate one wideband precoder;a rank indicator (RI) to indicate a rank of the at least one of the candidate cells;subband PMI; andsubband CQI.10.The method of any of claims 1 to 9, wherein the CSI measurement results are reported based on a CSI report configuration configured by the network device, and the CSI report configuration comprises one or more of the following information:a configuration of CSI report quantity;a configuration of codebook type; anda configuration of PMI format.11.The method of any of claims 1 to 5, wherein the CSI measurement results of the at least one of the candidate cells are reported in a MAC CE message, which comprises one or more of the following information:an indicator to indicate one candidate cell;an indicator to indicate a CSI report configuration of the indicated candidate cell; andthe CSI measurement results.12.The method of any of claims 1 to 5, wherein the CSI measurement results of a target cell the terminal device is to switch to are reported during a cell switch procedure in a MAC CE message, which comprises one or more of the following information:an indicator to indicate a CSI report configuration of the target cell; andthe CSI measurement results.13.The method of claim 1, wherein the terminal device receives an indication via a downlink control information (DCI) to trigger the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells based on a CSI report configuration, which is associated with the one or more physical RS resources that are used for CSI measurement, and CSI report quantity.14.The method of claim 13, wherein the DCI contains a CSI request field associated with a trigger state, and based on an indication of the trigger state, the CSI measurement on the at least one of the candidate cells is performed according to the CSI report configuration and the CSI measurement results of the at least one of the candidate cells are aperiodically reported according to the CSI report configuration.15.A method of receiving channel state information (CSI) measurement report, performed by a network device, comprising:sending to a terminal device a higher layer parameter configuring a plurality of candidate cells and indicating the terminal device with one or more physical reference signal (RS) resources for each of the candidate cells; andreceiving a report from the terminal device about CSI measurement results, which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device.16.The method of claim 15, wherein the network device sends an indication via a media access control control element (MAC CE) message to indicate the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells.17.The method of claim 15, further comprising:sending a cell switch command MAC CE message to indicate the terminal device to switch from a serving cell serving the terminal device to a target cell.18.The method of claim 17, wherein the cell switch command MAC CE message is further used to indicate the terminal device to measure and report the CSI measurement results of the target cell.19.The method of claim 18, wherein the cell switch command MAC CE message comprises one or more of the following information:a target configuration identifier (ID) , which indicates which candidate cell is the target cell;a timing advance command to indicate a value of timing advance for the terminal device to use in the target cell;a joint transmission configuration indicator (TCI) state or a pair of downlink (DL) TCI state and uplink (UL) TCI state for the target cell;an indicator to indicate a CSI report configuration of the target cell; andan indicator to indicate the terminal device to measure and report the CSI measurement results of the target cell.20.The method of any of claims 15 to 19, wherein the CSI measurement results of the at least one of the candidate cells are reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) .21.The method of any of claims 15 to 20, wherein the CSI measurement results of the at least one of the candidate cells are received by the network device periodically, semi-persistently or aperiodically.22.The method of any of claims 15 to 21, wherein the one or more physical RS resources comprise channel state information-reference signal (CSI-RS) resource.23.The method of claim 22, wherein the CSI measurement results of the at least one of the candidate cells comprises one or more of the following information:at least one indicator to indicate the at least one of the candidate cells;a CSI-RS resource indicator (CRI) to indicate the CSI-RS resource of the at least one of the candidate cells;a channel quality indicator (CQI) of the at least one of the candidate cells;a precoding matrix indicator (PMI) to indicate one wideband precoder;a rank indicator (RI) to indicate a rank of the at least one of the candidate cells;subband PMI; andsubband CQI.24.The method of any of claims 15 to 23, wherein the CSI measurement results are based on a CSI report configuration configured by the network device, and the CSI report configuration comprises one or more of the following information:a configuration of CSI report quantity;a configuration of codebook type; anda configuration of PMI format.25.The method of any of claims 15 to 19, wherein the CSI measurement results of the at least one of the candidate cells are received in a MAC CE message, which comprises one or more of the following information:an indicator to indicate one candidate cell;an indicator to indicate a CSI report configuration of the indicated candidate cell; andthe CSI measurement results.26.The method of any of claims 15 to 19, wherein the CSI measurement results of a target cell the terminal device is to switch to are received during a cell switch procedure in a MAC CE message, which comprises one or more of the following information:an indicator to indicate a CSI report configuration of the target cell; andthe CSI measurement results.27.The method of claim 15, wherein the network device sends an indication via a downlink control information (DCI) to trigger the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells based on a CSI report configuration, which is associated with the one or more physical RS resources that are used for CSI measurement, and CSI report quantity.28.The method of claim 27, wherein the DCI contains a CSI request field associated with a trigger state, and based on an indication of the trigger state, the CSI measurement on the at least one of the candidate cells is performed according to the CSI report configuration and the CSI measurement results of the at least one of the candidate cells are aperiodically received according to the CSI report configuration.29.A terminal device, comprising:a memory; anda processor coupled to the memory,wherein the processor is configured to call and run program instructions stored in the memory, to execute the method of any of claims 1 to 14.30.A network device, comprising:a memory; anda processor coupled to the memory,wherein the processor is configured to call and run program instructions stored in the memory, to execute the method of any of claims 15 to 28.31.A terminal device, comprising:a first receiving module, configured to receive from a network device a higher layer parameter configuring a plurality of candidate cells and being indicated one or more physical reference signal (RS) resources for each of the candidate cells;a measuring module, configured to measure the one or more physical RS resources of at least one of the candidate cells to obtain channel state information (CSI) measurement results; anda reporting module, configured to report the CSI measurement results to the network device.32.The terminal device of claim 31, wherein the first receiving module is further configured to receive an indication via a media access control control element (MAC CE) message to measure and report the CSI measurement results for the at least one of the candidate cells.33.The terminal device of claim 31, wherein the first receiving module is further configured to receive a cell switch command MAC CE message indicating the terminal device to switch from a serving cell serving the terminal device to a target cell.34.The terminal device of claim 33, wherein the cell switch command MAC CE message is further used to indicate the terminal device to measure and report the CSI measurement results of the target cell.35.The terminal device of claim 34, wherein the cell switch command MAC CE message comprises one or more of the following information:a target configuration identifier (ID) , which indicates which candidate cell is the target cell;a timing advance command to indicate a value of timing advance for the terminal device to use in the target cell;a joint transmission configuration indicator (TCI) state or a pair of downlink (DL) TCI state and uplink (UL) TCI state for the target cell;an indicator to indicate a CSI report configuration of the target cell; andan indicator to indicate the terminal device to measure and report the CSI measurement results of the target cell.36.The terminal device of any of claims 31 to 35, wherein the CSI measurement results of the at least one of the candidate cells are reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) .37.The terminal device of any of claims 31 to 36, wherein the reporting of the CSI measurement results of the at least one of the candidate cells to the network device is periodic, semi-persistent or aperiodic.38.The terminal device of any of claims 31 to 37, wherein the one or more physical RS resources comprise channel state information-reference signal (CSI-RS) resource.39.The terminal device of claim 38, wherein the CSI measurement results of the at least one of the candidate cells comprises one or more of the following information:at least one indicator to indicate the at least one of the candidate cells;a CSI-RS resource indicator (CRI) to indicate the CSI-RS resource of the at least one of the candidate cells;a channel quality indicator (CQI) of the at least one of the candidate cells;a precoding matrix indicator (PMI) to indicate one wideband precoder;a rank indicator (RI) to indicate a rank of the at least one of the candidate cells;subband PMI; andsubband CQI.40.The terminal device of any of claims 31 to 39, wherein the CSI measurement results are reported based on a CSI report configuration configured by the network device, and the CSI report configuration comprises one or more of the following information:a configuration of CSI report quantity;a configuration of codebook type; anda configuration of PMI format.41.The terminal device of any of claims 31 to 35, wherein the CSI measurement results of the at least one of the candidate cells are reported in a MAC CE message, which comprises one or more of the following information:an indicator to indicate one candidate cell;an indicator to indicate a CSI report configuration of the indicated candidate cell; andthe CSI measurement results.42.The terminal device of any of claims 31 to 35, wherein the CSI measurement results of a target cell the terminal device is to switch to are reported during a cell switch procedure in a MAC CE message, which comprises one or more of the following information:an indicator to indicate a CSI report configuration of the target cell; andthe CSI measurement results.43.The terminal device of claim 31, wherein the terminal device receives an indication via a downlink control information (DCI) to trigger the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells based on a CSI report configuration, which is associated with the one or more physical RS resources that are used for CSI measurement, and CSI report quantity.44.The terminal device of claim 43, wherein the DCI contains a CSI request field associated with a trigger state, and based on an indication of the trigger state, the CSI measurement on the at least one of the candidate cells is performed according to the CSI report configuration and the CSI measurement results of the at least one of the candidate cells are aperiodically reported according to the CSI report configuration.45.A network device, comprising:a sending module, configured to send to a terminal device a higher layer parameter configuring a plurality of candidate cells and indicating the terminal device with one or more physical reference signal (RS) resources for each of the candidate cells; anda second receiving module, configured to receive a report from the terminal device about channel state information (CSI) measurement results, which are obtained by measuring the one or more physical RS resources of at least one of the candidate cells by the terminal device.46.The network device of claim 45, wherein the sending module is further configured to send an indication via a media access control control element (MAC CE) message to indicate the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells.47.The network device of claim 45, wherein the sending module is further configured to send a cell switch command MAC CE message to indicate the terminal device to switch from a serving cell serving the terminal device to a target cell.48.The network device of claim 47, wherein the cell switch command MAC CE message is further used to indicate the terminal device to measure and report the CSI measurement results of the target cell.49.The network device of claim 48, wherein the cell switch command MAC CE message comprises one or more of the following information:a target configuration identifier (ID) , which indicates which candidate cell is the target cell;a timing advance command to indicate a value of timing advance for the terminal device to use in the target cell;a joint transmission configuration indicator (TCI) state or a pair of downlink (DL) TCI state and uplink (UL) TCI state for the target cell;an indicator to indicate a CSI report configuration of the target cell; andan indicator to indicate the terminal device to measure and report the CSI measurement results of the target cell.50.The network device of any of claims 45 to 49, wherein the CSI measurement results of the at least one of the candidate cells are reported to a serving cell serving the terminal device through physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) .51.The network device of any of claims 45 to 50, wherein the CSI measurement results of the at least one of the candidate cells are received by the network device periodically, semi-persistently or aperiodically.52.The network device of any of claims 45 to 51, wherein the one or more physical RS resources comprise channel state information-reference signal (CSI-RS) resource.53.The network device of claim 52, wherein the CSI measurement results of the at least one of the candidate cells comprises one or more of the following information:at least one indicator to indicate the at least one of the candidate cells;a CSI-RS resource indicator (CRI) to indicate the CSI-RS resource of the at least one of the candidate cells;a channel quality indicator (CQI) of the at least one of the candidate cells;a precoding matrix indicator (PMI) to indicate one wideband precoder;a rank indicator (RI) to indicate a rank of the at least one of the candidate cells;subband PMI; andsubband CQI.54.The network device of any of claims 45 to 53, wherein the CSI measurement results are based on a CSI report configuration configured by the network device, and the CSI report configuration comprises one or more of the following information:a configuration of CSI report quantity;a configuration of codebook type; anda configuration of PMI format.55.The network device of any of claims 45 to 49, wherein the CSI measurement results of the at least one of the candidate cells are received in a MAC CE message, which comprises one or more of the following information:an indicator to indicate one candidate cell;an indicator to indicate a CSI report configuration of the indicated candidate cell; andthe CSI measurement results.56.The network device of any of claims 45 to 49, wherein the CSI measurement results of a target cell the terminal device is to switch to are received during a cell switch procedure in a MAC CE message, which comprises one or more of the following information:an indicator to indicate a CSI report configuration of the target cell; andthe CSI measurement results.57.The network device of claim 45, wherein the sending module is further configured to send an indication via a downlink control information (DCI) to trigger the terminal device to measure and report the CSI measurement results for the at least one of the candidate cells based on a CSI report configuration, which is associated with the one or more physical RS resources that are used for CSI measurement, and CSI report quantity.58.The network device of claim 57, wherein the DCI contains a CSI request field associated with a trigger state, and based on an indication of the trigger state, the CSI measurement on the at least one of the candidate cells is performed according to the CSI report configuration and the CSI measurement results of the at least one of the candidate cells are aperiodically received according to the CSI report configuration.59.A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to execute the method of any one of claims 1 to 28.60.A chip, comprising:a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 28.61.A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a computer to execute the method of any one of claims 1 to 28.62.A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 28.63.A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 28.
Citation Information
Patent Citations
Systems and methods for resource-specific reference signal configuration
US20200044806A1
Wireless communication system
US20230146882A1
Early channel state information acquisition for target cell in layer one / layer two inter-cell mobility
US20240162956A1