METHOD FOR MEASURING AND REPORTING CHANNEL STATE INFORMATION, TERMINAL AND NETWORK SIDE DEVICE

Abstract

The present application discloses a channel state information measurement and reporting method, a terminal and a network side device, which belong to the technical field of communication. The channel state information measurement and reporting method according to an embodiment of the present application includes the steps of: a terminal receiving target signaling transmitted from a network side device, and determining a reference signal RS resource of a first target based on the target signaling, the target signaling being signaling acquired before the terminal accesses the first target; and the terminal performing CSI measurement and reporting based on the RS resource of the first target.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to a Chinese patent application filed on April 20, 2022, bearing application number 202210419340.2 and entitled "Method for measuring and reporting channel state information, terminal and network side equipment", the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and in particular to a channel state information measurement and reporting method, a terminal and a network side device. [Background technology]

[0003] In the case of cell switching in the related art, when the terminal receives the upper layer switching signaling with the common setting, it detects the synchronization signal block (SSB) of the target cell to perform coarse synchronization and automatic gain control (AGC) adjustment, and then transmits random access channel (RACH) information to the target cell to perform uplink synchronization and access the cell. If the terminal successfully accesses the target cell, the terminal receives the dedicated setting information of the target cell transmitted from the network side, such as a channel state information reference signal (CSI-RS), a tracking reference signal (TRS), and physical resources such as channels, and detects the TRS to perform highly accurate time-frequency synchronization and AGC adjustment, and then measures the CSI-RS and reports the channel state information (CSI) to the network side. The network side transmits downlink scheduling based on the CSI information reported from the terminal side. This enables the downlink of the target cell.

[0004] Because the downlink scheduling transmission of the target cell can only be performed after CSI measurement and reporting, the terminal can only obtain the CSI-RS resource configuration information of the target cell after successfully switching to the target cell. The terminal cannot perform downlink scheduling transmission until CSI measurement and reporting is completed, which significantly increases the downlink interruption time. Summary of the Invention

[0005] The embodiments of the present application provide a channel state information measurement and reporting method, a terminal, and a network side device, which can solve the problem of how to shorten the downlink interruption time by quickly obtaining a CSI report of a target cell so that a terminal can perform downlink transmission and reception as soon as possible after completing a cell switch.

[0006] In a first aspect, the present invention is applied to a terminal, A step of receiving target signaling sent by a network side device by a terminal and determining a reference signal RS resource of a first target based on the target signaling, the target signaling being signaling acquired before the terminal accesses the first target; and the terminal performs CSI measurement and reporting based on the first target RS resource.

[0007] In the second aspect, the present invention is applied to network side devices, A step of a network side device sending a target signaling to a terminal, the target signaling being a signaling sent before the terminal accesses a first target; and a step of receiving a CSI report reported by the terminal, the CSI report being measured by the terminal based on the first target RS resource, the first target RS resource being determined by the terminal based on the target signaling, by the network side device.

[0008] In the third aspect, A receiving module for receiving a target signaling sent from a network side device and determining a reference signal RS resource of a first target based on the target signaling, the target signaling being a signaling acquired before a terminal accesses the first target; and a measurement and reporting module for performing CSI measurement and reporting based on the first target RS resource.

[0009] In the fourth aspect: a transmission module for transmitting target signaling to the terminal, the target signaling being signaling transmitted before the terminal accesses a first object; and a receiving module for receiving a CSI report reported from the terminal, the CSI report being measured by the terminal based on the first target RS resource, the first target RS resource being determined by the terminal based on the target signaling.

[0010] In a fifth aspect, there is provided a terminal including a processor and a memory, the memory storing programs or commands executable by the processor, the programs or commands being executed by the processor to effect the steps of the method according to the first aspect.

[0011] In a sixth aspect, there is provided a network side device including a processor and a memory, wherein the memory stores programs or commands executable by the processor, and when the programs or commands are executed by the processor, the steps of the method according to the second aspect are realized.

[0012] In a seventh aspect, there is provided a communication system including a terminal usable for executing steps of the method for measuring and reporting channel state information (CSI) described in the first aspect, and a network side device usable for executing steps of the method for measuring and reporting channel state information (CSI) described in the second aspect.

[0013] In an eighth aspect, there is provided a readable storage medium having stored thereon a program or command which, when executed by a processor, causes the steps of the method according to the first aspect to be realized or causes the steps of the method according to the second aspect to be realized.

[0014] In a ninth aspect, there is provided a chip including a processor and a communication interface, the communication interface and the processor being coupled to each other, the processor executing a program or command to realize the method according to the first aspect or to realize the method according to the second aspect.

[0015] In a tenth aspect, there is provided a computer program / program product stored on a storage medium and executed by at least one processor to perform the steps of the method according to the first aspect or to perform the steps of the method according to the second aspect.

[0016] In the embodiment of the present application, the terminal can obtain target signaling before accessing the first target, determine a reference signal RS resource of the first target according to the target signaling, and perform CSI measurement and reporting according to the RS resource of the first target. Since the acquisition time of the target signaling is advanced from "after the terminal accesses the first target" to "before the terminal accesses the first target", the CSI result of the first target can be reported quickly, so that downlink transmission and reception can be performed as soon as possible after cell switching is completed, and the downlink interruption time can be shortened. [Brief description of the drawings]

[0017] [Figure 1] 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] FIG. 1 is a schematic diagram of trigger timing for aperiodic CSI reporting when d=0 in the related art; [Diagram 3] 1 is a flowchart of a channel state information measurement and reporting method provided by an embodiment of the present application; [Figure 4] 4 is an interaction flowchart of a channel state information measurement and reporting method provided by an embodiment of the present application; [Diagram 5] 2 is a flowchart of a channel state information measurement and reporting method provided by an embodiment of the present application; [Figure 6] FIG. 1 is a structural schematic diagram of a channel state information measurement and reporting device provided in an embodiment of the present application; [Figure 7] FIG. 2 is a structural schematic diagram of a channel state information measurement and reporting device provided in an embodiment of the present application; [Figure 8] FIG. 2 is a structural schematic diagram of a communication device provided by an embodiment of the present application; [Figure 9] FIG. 2 is a hardware structure schematic diagram of a terminal provided by an embodiment of the present application; [Figure 10] FIG. 2 is a structural schematic diagram of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application belong to the protection scope of the present application.

[0019] The terms "first", "second", etc. in the specification and claims of this application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. The terms used in this manner may be substituted for each other where appropriate, so that the embodiments of this application may be practiced in an order other than that shown or described herein, and it should be understood that the objects distinguished by "first" and "second" generally belong to one category, the number of objects is not limited, for example, the first object may be one or more. Also, in the specification and claims, "and / or" refers to at least one of the objects connected, and the symbol " / " generally refers to the related objects before and after being in an "or" relationship.

[0020] It should be noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application can generally be used interchangeably, and the technology described can be used in the above systems and wireless technologies, or in other systems and wireless technologies. However, in the following description, a New Radio (NR) system is described for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can be applied to systems other than NR systems, for example, 6th generation (6 th It is also applicable to 6G (Generation, 6G) communication systems.

[0021] 1 is a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be a terminal device such as a mobile phone, a tablet personal computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted equipment (VUE), a pedestrian terminal (PUE), a smart home (a home device including a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (PC), an automated teller machine, or a kiosk, and the wearable device includes a smart watch, a smart wristband, a smart earphone, a smart glasses, a smart accessory (a smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart ankle ring, a smart anklet, etc.), a smart wristlet, a smart wear, etc. It should be noted that the embodiments of the present application are not limited to a specific type of the terminal 11. The network side equipment 12 may include an access network equipment or a core network equipment, where the access network equipment 12 may be called a radio access network equipment, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network unit.The access network equipment 12 may include a base station, a WLAN access point, or a WiFi node, etc., and the base station may be called a Node B, an evolved Node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a home B node, a home evolved B node, a Transmitting Receiving Point (TRP), or any other suitable term in the art. As long as the same technical effect can be achieved, the base station is not limited to a specific technical term. In the embodiments of the present application, only a base station in an NR system is described as an example, but it should be noted that the specific type of the base station is not limited.

[0022] First, we will explain the principle of Rel-16 CSI.

[0023] CSI reporting can be configured as periodic CSI reporting (P-CSI), semi-persistent CSI reporting (SP-CSI), or aperiodic CSI reporting (A-CSI).

[0024] 1. Periodic CSI reports (P-CSI) are transmitted only on the Physical Uplink Control Channel (PUCCH).

[0025] 2. Semi-persistent CSI reports (SP-CSI) are transmitted on the PUCCH or the Physical Downlink Shared Channel (PUSCH). The PUSCH-based SP-CSI report is activated and deactivated by a CSI Request field in the Downlink Control Information (DCI) signaling, and up to 64 trigger states are set by the Radio Resource Control (RRC), each trigger state corresponds to one CSI report feedback setting (CSI Report Setting), and the resource setting associated with each CSI Report Setting contains only one CSI-RS resource set when used for CSI acquisition.

[0026] 3. Aperiodic CSI reporting (A-CSI) is transmitted only on the PUSCH. The A-CSI report based on the PUSCH is activated by DCI signaling, multiple trigger states are configured by RRC, each trigger state corresponds to one or multiple CSI report feedback settings (CSI report settings), a CSI request field in the DCI triggers one trigger state, and the CSI request field in the DCI format 0_1 ​​is configured to a maximum of 6 bits, so that a maximum of 64 CSI trigger states are supported, and when the CSI trigger states configured by the RRC are more than 64, 64 of the trigger states are mapped to the CSI request field by MAC CE signaling. Each CSI trigger state can be associated with one to three resource configurations, where if a resource configuration contains multiple resource sets, only one of them is selected, and the Quasi Co-location (QCL) information of the CSI-RS resources in this resource set is configured for each resource by the Transmission Configuration Indicator (TCI) state.

[0027] The CSI resource settings are as follows:

[0028] 1. M (M≧1) resource settings, 2. A resource configuration includes S (S≧1) CSI-RS resource sets, 3. One resource set includes Ks (Ks≧1) RS resources, such as CSI-RS / CSI interference measurement (CSI-IM) resources; 4. One CSI-RS resource is used to set the number of CSI-RS ports and time-frequency location information, etc., and one CSI-IM resource is used to set the time-frequency location information, etc., of CSI-IM.

[0029] Next, the Rel-16 CSI measurement resources will be described.

[0030] The measurement resources are 1. Perform interference measurement based on CSI-IM; 2. Interference measurement and channel measurement are performed based on non-zero power CSI-RS (Non-Zero Power CSI-RS, NZP CSI-RS).

[0031] Regarding the period and slot offset, 1. For periodic and semi-persistent CSI-RS, the period and slot offset are configured by RRC signaling. 2. Semi-persistent NZP CSI-RS / CSI-IM is activated and deactivated by the MAC CE, 3. Aperiodic CSI-RS is triggered by DCI, and CSI-RS slot offset candidate values ​​are set independently for each resource set in the measurement resource setting by RRC signaling, and one of the candidate values ​​is indicated as the CSI-RS transmission time by DCI signaling.

[0032] The SP-CSI report: Channel measurements can be performed using periodic or semi-persistent CSI-RS and interference measurements can be performed accordingly using periodic or semi-persistent CSI-IM; interference measurements using NZP CSI-RS are not supported.

[0033] The A-CSI report states: Channel measurements can be performed using periodic, semi-persistent or aperiodic CSI-RS and interference measurements can be performed accordingly using periodic, semi-persistent or aperiodic CSI-IM, and interference measurements using NZP CSI-RS are supported.

[0034] Next, the contents of the CSI report will be explained.

[0035] The terminal can configure using CSI-ReportConfig (CSI report configuration) and set the higher layer parameter reportQuantity (number of reports) to "none", "cri-ri-pmi-cqi", "cri-RI-i1", "cri-RI-CQI", "cri-RSRP", "cri-SINR", "ssb-Index-RSRP", "ssb-Index-SINR" or "cri-RI-LI-PMI-CQI".

[0036] When CSI-ReportConfig is configured in the terminal and the upper layer parameter reportQuantity is set to "none", the terminal does not report any content to CSI-ReportConfig.

[0037] If CSI-ReportConfig is configured in the terminal and the higher layer parameter reportQuantity is set to "cri-RI-PMI-CQI" or "cri-RI-LI-PMI-CQI", the terminal should report one precoding matrix for the entire report band or one precoding matrix per subband.

[0038] If CSI-ReportConfig is configured in the terminal and the higher layer parameter reportQuantity is set to “cri-RI-i1-CQI”, the UE should report PMI including a single wideband indicator for the entire CSI reporting band.

[0039] Next, the CSI processing standard will be explained.

[0040] The capability of the terminal to process CSI reports, i.e., the number of simultaneously computed CSIs supported.

number

number

number

[0041] Regarding the number of available CPUs, if L CPUs are dedicated to process the CSI report in a given OFDM symbol, the UE has

number

number

number

number

number

number

number

number

[0042] The number of CPUs occupied by the CSI report is shown in Table 1.

[0043] [Table 1]

[0044] In Table 1 above,

number

[0045] Regarding CPU occupancy time, the start / end OFDM symbols during which the CSI report occupies the CPU are summarized in Table 2 below.

[0046] [Table 2]

[0047] In the above Table 2, case 1 refers to the first transmission of an SP-CSI report based on PUSCH activated by PDCCH.

[0048] Next, the CSI calculation time will be explained.

[0049] If a CSI request field in the DCI triggers one or more CSI reports to be transmitted on the PUSCH, the terminal can provide a valid CSI report if the following two conditions are met:

[0050] The time of the first uplink OFDM symbol (hereinafter abbreviated as “symbol”) that transmits the CSI report, taking into account the timing advance value, is symbol Z ref onwards and Z' ref If it is later than Z ref is the number of symbols from the last PDCCH symbol that triggers the CSI report.

number

number

[0051] Please refer to FIG. 2, which is a trigger timing schematic diagram of aperiodic CSI reporting for d=0.

[0052] If the first uplink symbol of the PUSCH used to trigger one or more CSI reports transmitted on the PUSCH according to a CSI request field in the DCI does not satisfy the above condition, the terminal may ignore the DCI, or may not update the CSI, or may discard the CSI report according to specific circumstances.

[0053] If the number of currently idle CSI processing units (CPUs) of the terminal can calculate M CSI reports,

number

number

number

number

[0054] [Table 3]

[0055] [Table 4]

[0056] If the first uplink symbol of the PUSCH used to trigger one or more CSI reports transmitted on the PUSCH according to the CSI request field in the DCI does not satisfy the above condition, the UE may ignore the DCI, or may not update the CSI, or may discard the CSI report according to specific circumstances.

[0057] μ = min(μ PDCCH ,μ CSI-RS ,μ UL ), where μ PDCCH corresponds to the subcarrier spacing of the PDCCH carrying the DCI that triggers the CSI report, and μ UL corresponds to the subcarrier spacing of the PUSCH carrying the CSI report, and μ CSI-RS corresponds to the minimum subcarrier spacing of the aperiodic CSI-RS triggered by DCI.

[0058] [Table 5]

[0059] The terminal does not expect to receive more than one aperiodic CSI report request in one timeslot, i.e., regardless of whether it is a CA scenario or a non-CA scenario, the terminal does not transmit aperiodic CSI reports triggered by CSI report requests of multiple DCIs in one timeslot.

[0060] In the above formula, time unit

number

number

number

number

[0061] Next, the CSI reference resource will be described.

[0062] The definition of the CSI reference resource of the serving cell is as follows:

[0063] 1. In the frequency domain, the CSI reference resource is defined as a set of downlink physical resource blocks on the bandwidth from which CSI is obtained; 2. In the time domain, for uplink CSI reporting timeslot n', the CSI reference resource is downlink slot nn CSI_ref where:

number

number

number

[0064] Here, for periodic and semi-persistent CSI reporting, 1. If there is only one CMR or SSB resource, n CSI_ref teeth

number

number

number

[0065] If periodic or semi-persistent CSI-RS / CSI-IM or SSB resources are used for channel or interference measurements, the UE does not expect the distance between the last OFDM symbol of the received measurement channel or interference resource and the first OFDM symbol of the aperiodic CSI report to be less than Z′ symbols.

[0066] Finally, we explain the priorities of CSI reports.

[0067] The CSI report states: Priority Parameter

number

number

number

number

number

number

number

number

number

[0068] Priority Parameter Value

number

[0069] In the following, the channel state information measurement and reporting method provided by the embodiments of the present application will be described in detail through several embodiments and their application scenarios with reference to the drawings.

[0070] 3 is a flow chart 1 of a method for measuring and reporting channel state information provided by an embodiment of the present application. As shown in FIG.

[0071] In step 301, the terminal receives target signaling sent from a network side device, and determines a reference signal RS resource of a first target based on the target signaling, where the target signaling is signaling acquired before the terminal accesses the first target.

[0072] Specifically, the first target may be a target transmission reception point (TRP), a target cell, or a target cell group. The target signaling is signaling acquired before the terminal accesses the first target, that is, the acquisition time of the target signaling is advanced from "after the terminal accesses the first target" to "before the terminal accesses the first target", so that the target signaling can be acquired quickly, and the RS resource of the first target can be acquired quickly.

[0073] In step 302, the terminal performs CSI measurement and reporting based on a first target RS resource.

[0074] Specifically, after obtaining the first target RS resource, the terminal performs CSI measurement and reporting based on the first target RS resource to obtain a CSI report.

[0075] In the method of this embodiment, the terminal can obtain target signaling before accessing the first target, determine reference signal RS resources of the first target based on the target signaling, and perform CSI measurement and reporting based on the RS resources of the first target. Since the acquisition time of the target signaling is advanced from "after the terminal accesses the first target" to "before the terminal accesses the first target", the CSI report of the first target can be reported quickly, so that downlink transmission and reception can be performed as soon as possible after cell switching is completed, and the downlink interruption time can be shortened.

[0076] In the above step 301, the implementation manner in which the terminal determines the first target reference signal RS resource based on the target signaling may include the following five methods.

[0077] Method 1 The target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including a first target, or the first target and a current service target, and the first target is different from the current service target.

[0078] Specifically, the multiple objects included in the first signaling include a first object, or the first object and a current serving object, the current serving object is a current serving TRP, a current serving cell, or a current serving cell group, and the first object is a target TRP, a target cell, or a target cell group that is different from the current serving object among the multiple objects included in the first signaling.

[0079] Optionally, the configuration information of the multiple targets includes higher layer configuration information and / or physical layer configuration information, where the higher layer configuration information includes at least one of cell group configuration information, special cell configuration information, synchronization reconfiguration information, serving cell common configuration information, and serving cell configuration information, and the physical layer configuration information includes at least one of RS resource configuration information, CSI report configuration information, frequency domain information, subcarrier spacing SCS information, Cell Radio Network Temporary Identifier (C-RNTI) information, Physical Uplink Control Channel (PUCCH) information, configuration grant information, Path Loss Reference Signal (Path Loss RS, PL-RS) information, Random Access Channel (RACH) resource information, quasi-co-location QCL information, and spatial relationship information. The CSI report configuration information in the configuration information of the current serving target is associated with the RS resource of the first target, and the frequency domain information includes at least one of Synchronization Signal Block (SSB) frequency point information, CSI-RS frequency point information, and band indication information.

[0080] Optionally, in the above step 301, the step of the terminal determining a first target reference signal RS resource based on the target signaling includes: determining, by the terminal, a first object based on a plurality of objects included in the first signaling; The terminal determines, based on the configuration information of the multiple targets included in the first signaling, an RS resource of the first target.

[0081] Specifically, the terminal determines all or some of the targets other than the current service target among the multiple targets included in the first signaling as first targets, and for each first target, the terminal determines the RS resource of the first target based on the configuration information of the RS resource of the first target included in the first signaling, that is, the terminal can determine the RS resource of at least one first target based on the first signaling.

[0082] In a specific embodiment, after the terminal receives RRC pre-configuration information carrying N (N≧1) candidate targets, all the candidate targets become first targets, and the CSI-RS for CSI and TRS of all the first targets are immediately enabled, so that the terminal can obtain high-precision time-frequency synchronization information of the first targets through the TRS of each first target, and obtain a CSI report through the CSI-RS of each first target, and report it to the current service target or the first target.

[0083] Optionally, the method of this embodiment further includes a step in which the terminal determines a valid start time and a valid end time of the first target RS resource according to a first predetermined rule, and the first predetermined rule includes that the first target RS resource is enabled after the terminal receives a first signaling, and disabled after the terminal receives a signaling to release the first target RS resource setting.

[0084] Specifically, when the RS resource is a periodic RS resource, the effective start time of the first target RS resource is after the time when the terminal receives radio resource control signaling (i.e., the first signaling) including configuration information of the RS resource, and the effective end time of the first target RS resource is before the time when the terminal receives radio resource control signaling including configuration information for releasing the RS resource; When the RS resource is a semi-persistent RS resource, the effective start time of the first target RS resource is the first symbol at which a MAC CE that activates the semi-persistent RS resource becomes effective, and the MAC CE that activates the semi-persistent RS resource is after the first signaling; the effective end time of the first target RS resource is the first symbol at which a MAC CE that deactivates the semi-persistent RS resource becomes effective, and the MAC CE that deactivates the semi-persistent RS resource is after the first signaling; When the RS resource is an aperiodic RS resource, the valid start time of the first target RS resource is the last symbol of a physical downlink control channel PDCCH that activates the aperiodic RS resource, the PDCCH being after the first signaling, and the valid end time of the first target RS resource is the last symbol of a physical uplink shared channel PUSCH carrying a CSI report triggered by the PDCCH.

[0085] Method 2 The target signaling further includes a second signaling carrying indication information of the first object, where the indication information of the first object is used to indicate an index of the first object.

[0086] Specifically, the target signaling includes a first signaling and a second signaling, and the index of the first object may be an index of the first object in the multiple objects, or may be an absolute object identifier.

[0087] Optionally, in the above step 301, the step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines a first object from the plurality of objects based on the first signaling and the second signaling; The terminal determines a first target RS resource based on configuration information of a plurality of target RS resources.

[0088] Specifically, the terminal obtains an index of the first target based on the second signaling, and uses the index to search for the first target from the multiple targets included in the first signaling to determine the first target, and the terminal determines the RS resource of the first target based on the configuration information of the RS resource of the first target included in the first signaling, that is, the terminal can determine the RS resource of the first target based on the first signaling and the second signaling.

[0089] In a specific implementation, the index of the first target is indicated to the terminal in advance by the MAC CE or DCI in the second signaling, and after the terminal accurately receives the MAC CE or DCI, the CSI-RS for CSI and TRS of the first target are immediately enabled, and the terminal can obtain high-precision time-frequency synchronization information of the first target through the TRS of the first target, and obtain a CSI report through the CSI-RS of the first target to report to the current service target or the first target.

[0090] Optionally, the method of this embodiment further includes a step in which the terminal determines a valid start time and a valid end time of the RS resource of the first target according to a second predetermined rule, the second predetermined rule including that the RS resource of the first target is enabled when the second signaling is enabled, and disabled when the fourth signaling is enabled, where the fourth signaling is signaling for releasing the RS resource setting in the first target or a fifth signaling, and the fifth signaling is the second signaling having a start symbol later than the start symbol of the currently enabled second signaling.

[0091] The fifth signaling is a signaling having a starting symbol later than the currently valid second signaling among the second signaling, for example, the fifth signaling is the next second signaling.

[0092] Specifically, when the RS resource is a periodic RS resource, the effective start time of the first target RS resource is the first symbol after the second signaling becomes effective, and the effective end time of the first target RS resource is the time when the terminal receives radio resource control signaling including configuration information for releasing the RS resource, or the first symbol when the next second signaling becomes effective; When the RS resource is a semi-persistent RS resource, the effective start time of the first target RS resource is the first symbol at which a MAC CE activating the semi-persistent RS resource becomes effective, and the MAC CE activating the semi-persistent RS resource is after the second signaling; the effective end time of the first target RS resource is the first symbol at which a MAC CE deactivating the semi-persistent RS resource becomes effective, and the MAC CE deactivating the semi-persistent RS resource is after the second signaling; When the RS resource is an aperiodic RS resource, the valid start time of the first target RS resource is the last symbol of a PDCCH that activates the aperiodic RS resource, the PDCCH being after the second signaling, and the valid end time of the first target RS resource is the last symbol of a physical uplink shared channel PUSCH carrying a CSI report triggered by the PDCCH.

[0093] Method 3 The target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource, the at least one target aperiodic RS resource being associated with at least one of the multiple targets.

[0094] Specifically, the target signaling includes first signaling and second signaling, and the second signaling in this embodiment is used to activate at least one aperiodic RS resource, and the at least one aperiodic RS resource includes at least one target aperiodic RS resource among a plurality of targets.

[0095] Optionally, in the above step 301, the step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines at least one target associated with the aperiodic RS resource activated by the second signaling as a first target; The terminal determines a target aperiodic RS resource associated with the at least one target, which is activated by the second signaling, as an RS resource of the first target.

[0096] Specifically, since the second signaling is used to activate at least one aperiodic RS resource, the at least one aperiodic RS resource includes at least one target aperiodic RS resource, and the at least one target aperiodic RS resource is associated with at least one of the multiple targets, the terminal determines the at least one target associated with the aperiodic RS resource activated by the second signaling as a first target, and determines the target aperiodic RS resource associated with the at least one target activated by the second signaling as the RS resource of the first target, that is, the terminal can determine the RS resource of the first target based on the second signaling.

[0097] In the above embodiment, before switching cells, the network side device triggers measurement of the first target aperiodic RS by the MAC CE or DCI in the second signaling, and when the terminal accurately receives the MAC CE or DCI, the first target aperiodic RS resource indicated by the MAC CE or DCI is enabled, and the terminal can perform high-precision time-frequency synchronization and CSI measurement based on the enabled RS.

[0098] Optionally, the method of this embodiment further includes a step in which the terminal determines a valid start time and a valid end time of the first target RS resource according to a third predetermined rule, and the third predetermined rule includes: the valid start time of the first target RS resource is the last symbol of the second signaling, and the valid end time of the first target RS resource is the last symbol of the non-periodic RS resource activated by the second signaling.

[0099] Method 4 The target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated with at least one RS resource, the at least one RS resource being associated with at least one of the multiple targets.

[0100] Specifically, the target signaling includes first signaling and second signaling, where the second signaling in this embodiment is used to activate at least one aperiodic CSI report, and the at least one aperiodic CSI report is associated with at least one RS resource among the multiple targets.

[0101] Optionally, in the above step 301, the step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines, as a first target, at least one target associated with an RS resource associated with the at least one aperiodic CSI report activated by the second signaling; The terminal determines, by the second signaling, an RS resource associated with the at least one target as an RS resource of the first target.

[0102] Specifically, since the second signaling is used to activate at least one aperiodic CSI report, the at least one aperiodic CSI report is associated with at least one RS resource, and the at least one RS resource is associated with at least one of the multiple targets, the terminal determines the at least one target associated with the RS resource associated with the at least one aperiodic CSI report activated by the second signaling as a first target, and determines the RS resource associated with the at least one target activated by the second signaling as the RS resource of the first target, that is, the terminal can determine the RS resource of the first target based on the second signaling.

[0103] In a specific implementation, before switching cells, the network side equipment triggers a CSI report by a DCI in the second signaling, the CSI report is associated with at least one first target RS resource, and when the terminal accurately receives the MAC CE or DCI, the MAC CE or DCI indicates that the RS associated with the first target in the CSI report is enabled, and the terminal can perform high-precision time-frequency synchronization and CSI measurement based on the enabled RS.

[0104] Optionally, the method of this embodiment further includes a step of the terminal determining a valid start time and a valid end time of the first target RS resource according to a fourth predetermined rule, where the fourth predetermined rule includes: the valid start time of the first target RS resource is the last symbol of the second signaling, and the valid end time of the first target RS resource is the last symbol of an uplink channel resource carrying at least one aperiodic CSI report activated by the second signaling.

[0105] Method 5 The target signaling further includes third signaling carrying at least one of indication information of the first target, indication information of RS resources, and indication information of CSI report configuration, where the indication information of the first target is used to indicate an index of the first target, the indication information of RS resources is used to indicate at least one RS resource of the first target, and the indication information of CSI report configuration is used to indicate at least one CSI report associated with the RS resource of the first target.

[0106] Specifically, the target signaling includes a first signaling and a third signaling, and the index of the first target may be an index of the first target in the multiple targets or may be an absolute target identifier. At least one CSI report is associated with at least one RS resource of the multiple targets.

[0107] Optionally, in the above step 301, the step of the terminal determining a first target reference signal RS resource based on the target signaling includes: A step of determining a first object from among the multiple objects by the terminal based on instruction information of the first object; The terminal determines a first target RS resource based on the indication information of the RS resource and / or the indication information of the CSI report configuration.

[0108] Specifically, the terminal obtains an index of the first target based on the third signaling, and uses the index to search for the first target from the multiple targets included in the first signaling to determine the first target. The terminal determines at least one RS resource of the first target indicated in the RS resource indication information as the RS resource of the first target, and / or the terminal determines at least one RS resource of the multiple targets associated with the at least one CSI report as the RS resource of the first target, that is, the terminal can determine the RS resource of the first target based on the first signaling and the third signaling.

[0109] In a specific implementation, at the same time as instructing a cell switch, the network side device triggers measurement of the aperiodic RS of the first target through the third signaling, or triggers aperiodic CSI reporting of the first target through the DCI. When the switch signaling is enabled, the aperiodic RS resource of the first target indicated by the switch signaling is enabled, or the RS associated with the first target in the CSI reporting indicated by the switch signaling is enabled, and the terminal can perform high-precision time-frequency synchronization and CSI measurement based on the enabled RS.

[0110] Optionally, the method of this embodiment further includes a step of the terminal determining a valid start time and a valid end time of the first target RS resource according to a fifth predetermined rule, the fifth predetermined rule including: the valid start time of the first target RS resource is the last symbol of the third signaling or the first symbol after the third signaling becomes valid; and the valid end time of the first target RS resource is the last symbol of the RS resource indicated by the third signaling or the last symbol of the uplink channel resource carrying the CSI report indicated by the third signaling.

[0111] Optionally, the above step 302 may include: the terminal performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion or a CPU occupancy criterion.

[0112] In this embodiment, the terminal performs CSI measurement and reporting of the first target RS resource in advance according to a measurement and scheduling restriction criterion, avoids collision with the measurement and transmission of the current service target, and improves the effectiveness of measurement and scheduling. Similarly, the terminal performs CSI measurement and reporting of the first target RS resource according to a CPU occupancy criterion, reasonably sets the CPU occupancy number and / or time, and further improves the efficiency of CSI measurement and reporting.

[0113] Optionally, the step of the terminal performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion includes: The terminal performs CSI measurement and reporting on a first target RS resource according to a measurement and scheduling restriction criterion, the measurement and scheduling restriction criterion comprising: No measurement and scheduling restrictions; The terminal does not receive and / or measure the RS resource of the first target that overlaps in the frequency domain with the synchronization signal block (SSB) resource associated with the first target or the current service target; The terminal does not receive and / or measure a first target RS resource that overlaps in the time domain with a currently served target RS resource; In the time domain resource of the first target resource, the terminal does not monitor downlink transmission of the current serving object including the physical downlink control channel PDCCH, the physical downlink shared channel PDSCH, and the reference signal; there is a difference of X1 symbols between the first symbol of the first target resource and the first symbol of the first target RS resource, and there is a difference of Y1 symbols between the last symbol of the first target resource and the last symbol of the first target RS resource, where X1 and Y1 are both positive integers; optionally, the values ​​of X1 and Y1 are determined based on factors such as a downlink timing difference between the first target and the current serving object, an SCS, etc.; and the unit of the time domain resource may be any one of symbols, timeslots, frames, nanoseconds ns, microseconds us, milliseconds ms, and seconds s; in the time domain resource of the second target resource, the terminal does not perform uplink transmission of the current service target, including the sounding reference signal SRS, the physical uplink control channel PUCCH, and the physical uplink shared channel PUSCH; there is a difference of X2 symbols between the first symbol of the second target resource and the first symbol of the RS resource of the first target, and there is a difference of Y2 symbols between the last symbol of the second target resource and the last symbol of the RS resource of the first target, where X2 and Y2 are both positive integers, and the values ​​of X2 and Y2 are determined based on factors such as an uplink or downlink timing difference, SCS, and uplink and downlink SCS of the current service target between the first target and the current service target; and the unit of the time domain resource may be any one of symbols, timeslots, frames, nanoseconds ns, microseconds us, milliseconds ms, and seconds s.

[0114] In this embodiment, the terminal performs CSI measurement and reporting of the first target RS resource that is started in advance according to the measurement and scheduling restriction criteria, avoids collision with the measurement and transmission of the current service target, and improves the effectiveness of measurement and scheduling.

[0115] Optionally, the CPU occupation criterion includes a CPU occupation number criterion and / or a CPU occupation time criterion.

[0116] Specifically, the CPU occupancy standard is as follows: the number of CPUs occupied by the CSI report associated with the first target RS resource is the number of RS resources for channel measurement associated with the CSI report; The number of CPUs occupied by the CSI report associated with the first target RS resource is 1; and The number of CPUs occupied by the CSI report associated with the first target RS resource is N, and N is set based on the terminal capability or agreed upon in a protocol.

[0117] The CPU occupation time standard is starting from a first symbol of a first RS resource of an RS transmission event corresponding to a first target RS resource associated with a latest CSI report after a first reference time and ending to a last symbol of an uplink resource carrying the CSI report, where there is at least one first target valid downlink time slot before the first reference time or there is at least one first target RS resource before the first reference time; starting from the last symbol of the PDCCH triggering the CSI report and ending to the last symbol of the uplink resource carrying the CSI report, where at least one first target valid downlink time slot exists between the PDCCH and the uplink resource carrying the CSI report, or at least one first target RS resource exists; starting from a first symbol of a first RS resource of each RS transmission event corresponding to a first target RS resource associated with the CSI report and ending Z1 symbols after the last symbol of a last RS resource of each RS transmission event corresponding to a first target RS resource associated with the CSI report, where the value of Z1 is set based on terminal capability or agreed upon in a protocol; starting from the last symbol of the PDCCH that triggers the CSI report and ending at the last symbol of both Z2 symbols after the last symbol of the PDCCH that triggers the CSI report and Z1 symbols after the last symbol of the first target RS resource associated with the CSI report, where the value of Z2 includes at least one of: 1. at least one first target valid downlink time slot exists or at least one first target RS resource exists between the last symbol of the PDCCH that triggers the CSI report and Z2 symbols after the last symbol of the PDCCH that triggers the CSI report; and 2. the terminal capability.

[0118] In this embodiment, the terminal performs CSI measurement and reporting on the first target RS resource according to a CPU occupancy criterion, and can rationally set the CPU occupancy number and / or time to further improve the efficiency of CSI measurement and reporting.

[0119] Optionally, when the CPU occupation criterion includes a CPU occupation time criterion, a total number of CPUs occupied by the first CSI measurement and report and the second CSI measurement and report is less than or equal to a predetermined maximum CPU number, where the first CSI measurement and report is a CSI measurement and report associated with a first target RS resource and the second CSI measurement and report is a CSI measurement and report associated with a current serving RS resource, where the predetermined maximum CPU number is determined based on terminal capability or agreed upon in a protocol.

[0120] Optionally, the above step 302 may include: the terminal performing CSI measurement based on the first target active RS resource, and obtaining a CSI report including the CSI measurement result; and the terminal reporting the CSI report to the network side device through the uplink channel resource.

[0121] Specifically, the first target active RS resource is an active RS resource in the first target RS resource, and the terminal performs CSI measurement according to the first target active RS resource. The uplink channel resource includes at least one of a physical uplink control channel PUCCH resource, a physical uplink shared channel PUSCH resource, and a configuration grant resource.

[0122] Optionally, the first symbol of the uplink channel resource is X3 symbols or more after the last symbol of the first target RS resource associated with the CSI report, where X3 is a positive integer, and X3 is determined based on the terminal capability, a protocol agreement, or a network configuration.

[0123] Optionally, the step of reporting the CSI report to the network side device by the terminal through the uplink channel resource includes: The terminal reports a CSI report to a network side device through uplink channel resources according to a CSI report priority rule, the CSI report priority rule comprising: A priority of the beam report associated with the first target RS resource is higher than a priority of the CSI report associated with the first target RS resource; a priority of the beam report associated with the first target RS resource is higher than a priority of the CSI report associated with the current serving RS resource; and a priority of the CSI report associated with the first targeted RS resource is higher than a priority of the CSI report associated with the currently served RS resource.

[0124] In this embodiment, the terminal reports the CSI report to the network side device through uplink channel resources according to the CSI report priority rule, so as to further improve the reporting speed of the CSI report.

[0125] Optionally, the terminal The number of RS resources in the configuration information of multiple targets, a number of RS resources of the first target associated with all CSI reporting configurations of the first target; The number of RS resources in the first target configuration information; and a first target aperiodic RS resource number that is activated by the second signaling; and a first target number of RS resources associated with the aperiodic CSI report triggered by the second signaling; and A first target RS resource number indicated by the third signaling; and and a number of active RS resources of the first target associated with the CSI report indicated in the third signaling.

[0126] In this embodiment, the active RS resources of the first target and the number thereof can be defined in various ways, and is flexible in specific implementation.

[0127] Alternatively, from the valid start time to the valid end time of the RS resource of the first target, the number of active RS resources of the first target in the active bandwidth portion is within a range of the number of RS resources indicated by the first terminal capability information, or from the valid start time to the valid end time of the RS resource of the first target, the sum of the number of active RS resources of the first target in the active bandwidth portion and the number of active RS resources of the current serving target is within a range of the number of RS resources indicated by the second terminal capability information, where the first terminal capability information is used to indicate the maximum number of active RS resources of the first target supported by the terminal, and the second terminal capability information is used to indicate the maximum number of active RS resources of the cross-cell supported by the terminal.

[0128] In this embodiment, from the valid start time to the valid end time of the first target RS resource, the number of the first target active RS resources in the active bandwidth portion can be defined by the terminal capability.

[0129] FIG. 5 is a flow chart 2 of the channel state information measurement and reporting method provided by an embodiment of the present application. As shown in FIG. 5, the method provided by this embodiment includes: Step 501, in which a network side device transmits target signaling to a terminal, the target signaling being signaling transmitted before the terminal accesses a first target; The method includes a step 502 in which the network side device receives a CSI report reported from the terminal, the CSI report being measured based on the first target RS resource, and the first target RS resource being determined based on the target signaling.

[0130] Alternatively, the target signaling may include first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, the first target being different from the current service target, and the configuration information of the current service target may be carried by the first signaling or a fourth signaling, and the first symbol of the fourth signaling is earlier than the first symbol of the first signaling.

[0131] Optionally, the target signaling further includes a second signaling carrying indication information of the first object, the indication information of the first object being used to indicate an index of the first object.

[0132] Optionally, the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

[0133] Optionally, the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated to at least one RS resource associated with at least one of the multiple targets.

[0134] Optionally, the target signaling further includes third signaling carrying at least one of: first target indication information for indicating an index of the first target; RS resource indication information for indicating at least one RS resource of the first target; and CSI report configuration indication information for indicating at least one CSI report associated with the RS resource of the first target.

[0135] In the channel state information measurement and reporting method provided by the embodiment of the present application, the execution subject may be a channel state information (CSI) measurement and reporting device. In the embodiment of the present application, the channel state information (CSI) measurement and reporting device provided by the embodiment of the present application will be described by taking the channel state information (CSI) measurement and reporting method as an example.

[0136] FIG. 6 is a structural schematic diagram 1 of a channel state information measurement and reporting device provided in an embodiment of the present application. As shown in FIG. 6, the channel state information measurement and reporting device provided in this embodiment includes: A receiving module 701 for receiving a target signaling sent from a network side device and determining a reference signal RS resource of a first target according to the target signaling, the target signaling being a signaling acquired before the terminal accesses the first target; and a measurement reporting module 702 for performing CSI measurement and reporting based on the first target RS resource.

[0137] Optionally, the target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, and the first target is different from the current service target.

[0138] Optionally, the receiving module 701 specifically includes: determining the first object based on the plurality of objects included in the first signaling; and and determining an RS resource of the first target based on configuration information of a plurality of targets included in the first signaling.

[0139] Optionally, the apparatus further comprises: The terminal further includes a time determination module 703 for determining a valid start time and a valid end time of the first target RS resource according to a first predetermined rule, the first predetermined rule including that the first target RS resource is enabled after the terminal receives the first signaling, and disabled after the terminal receives a signaling to release the first target RS resource configuration.

[0140] Optionally, the target signaling further includes second signaling carrying indication information of the first object for indicating an index of the first object.

[0141] Optionally, the receiving module 701 specifically includes: determining the first object from the plurality of objects based on the first signaling and the second signaling; and determining the first target RS resource based on configuration information of the plurality of target RS resources.

[0142] Optionally, the time determination module 703 is further used to determine the valid start time and valid end time of the RS resource of the first target according to a second predetermined rule, the second predetermined rule including that the RS resource of the first target is enabled when the second signaling is enabled and disabled when the fourth signaling is enabled, where the fourth signaling is signaling for releasing the RS resource configuration in the first target or a fifth signaling, and the fifth signaling is a second signaling having a start symbol later than the start symbol of the currently enabled second signaling.

[0143] Optionally, the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

[0144] Optionally, the receiving module 701 specifically includes: determining the at least one object associated with the aperiodic RS resource activated by the second signaling as a first object; determining a target aperiodic RS resource associated with the at least one target activated by the second signaling as an RS resource of the first target.

[0145] Optionally, the time determination module 703 is further used to determine the effective start time and effective end time of the first target RS resource according to a third predetermined rule, wherein the third predetermined rule includes: the effective start time of the first target RS resource is the last symbol of the second signaling, and the effective end time of the first target RS resource is the last symbol of the non-periodic RS resource activated by the second signaling.

[0146] Optionally, the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated to at least one RS resource associated with at least one of the multiple targets.

[0147] Optionally, the receiving module 701 specifically includes: determining the at least one target associated with an RS resource associated with the at least one aperiodic CSI report activated by the second signaling as a first target; and determining an RS resource associated with the at least one target, which is activated by the second signaling, as an RS resource of the first target.

[0148] Optionally, the time determination module 703 is further used for determining a valid start time and a valid end time of the first target RS resource according to a fourth predetermined rule, the fourth predetermined rule including: the valid start time of the first target RS resource is the last symbol of the second signaling, and the valid end time of the first target RS resource is the last symbol of an uplink channel resource carrying at least one aperiodic CSI report activated by the second signaling.

[0149] Optionally, the target signaling further includes third signaling carrying at least one of: first target indication information for indicating an index of the first target; RS resource indication information for indicating at least one RS resource of the first target; and CSI report configuration indication information for indicating at least one CSI report associated with the RS resource of the first target.

[0150] Optionally, the receiving module 701 specifically includes: determining a first object from the plurality of objects based on indication information of the first object; and determining the first target RS resource based on the indication information of the RS resource and / or the indication information of a CSI report configuration.

[0151] Optionally, the time determination module 703 is further used to determine a valid start time and a valid end time of the first target RS resource according to a fifth predetermined rule, the fifth predetermined rule including: the valid start time of the first target RS resource is the last symbol of the third signaling or the first symbol after the third signaling becomes valid; and the valid end time of the first target RS resource is the last symbol of the RS resource indicated in the third signaling or the last symbol of an uplink channel resource carrying a CSI report indicated in the third signaling.

[0152] Optionally, the apparatus further comprises: The number of RS resources in the plurality of target configuration information; A number of RS resources of the first target associated with all CSI reporting configurations in the first target; The number of RS resources in the first target configuration information; the number of the first target aperiodic RS resources activated by the second signaling; and a number of the first target RS resources associated with an aperiodic CSI report triggered by the second signaling; and The number of the first target RS resources indicated in the third signaling; and a number of RS resources of the first target associated with a CSI report indicated in the third signaling, and a number determination module 704 for determining a number of active RS resources of the first target based on at least one of: a number of RS resources of the first target associated with a CSI report indicated in the third signaling.

[0153] Alternatively, from the effective start time to the effective end time of the RS resource of the first target, the number of active RS resources of the first target in the active bandwidth portion is within the range of the number of RS resources indicated by the first terminal capability information; or From the validity start time to the validity end time of the RS resource of the first target, the sum of the number of active RS resources of the first target within the active bandwidth portion and the number of active RS resources of the current service target is within the range of the number of RS resources indicated in the second terminal capability information.

[0154] Optionally, the first terminal capability information is used to indicate a maximum number of first target active RS resources supported by the terminal, and the second terminal capability information is used to indicate a maximum number of cross-cell active RS resources supported by the terminal.

[0155] Optionally, the measurement reporting module 702 specifically: It is used to perform CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion or a CPU occupancy criterion.

[0156] Optionally, the measurement reporting module 702 is specifically used for performing CSI measurement and reporting on the first target RS resource according to a measurement and scheduling restriction criterion, and the measurement and scheduling restriction criterion is: No measurement and scheduling restrictions; The terminal does not receive and / or measure RS resources of the first target that overlap in the frequency domain with synchronization signal block (SSB) resources associated with the first target or the current service target; The terminal does not receive and / or measure the first target RS resource that overlaps in the time domain with the currently served RS resource; In the time domain resource of a first target resource, the terminal does not monitor downlink transmission of the current service target, including a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, and a reference signal; there is a difference of X1 symbols between the first symbol of the first target resource and the first symbol of the first target RS resource, and there is a difference of Y1 symbols between the last symbol of the first target resource and the last symbol of the first target RS resource, where X1 and Y1 are both positive integers; In the time domain resource of the second target resource, the terminal does not perform uplink transmission of the current service target, including a sounding reference signal SRS, a physical uplink control channel PUCCH, and a physical uplink shared channel PUSCH; there is a difference of X2 symbols between the first symbol of the second target resource and the first symbol of the first target RS resource, and there is a difference of Y2 symbols between the last symbol of the second target resource and the last symbol of the first target RS resource, where X2 and Y2 are both positive integers.

[0157] Optionally, the CPU occupation criterion includes a CPU occupation number criterion and / or a CPU occupation time criterion.

[0158] Alternatively, when the CPU occupancy criterion includes the CPU occupancy time criterion, the total number of CPUs occupied by the first CSI measurement and report and the second CSI measurement and report is less than or equal to a predetermined maximum number of CPUs, where the first CSI measurement and report is a CSI measurement and report associated with the first target RS resource, and the second CSI measurement and report is the CSI measurement and report associated with the current serving RS resource.

[0159] Optionally, the measurement reporting module 702 specifically: performing CSI measurement based on the active RS resources of the first target, and obtaining a CSI report including a CSI measurement result; and reporting the CSI report to the network side device through uplink channel resources.

[0160] Optionally, the first symbol of the uplink channel resource is X3 symbols or more after the last symbol of the first target RS resource associated with the CSI report, where X3 is a positive integer.

[0161] Optionally, the measurement reporting module 702 is specifically used for reporting the CSI report to the network side device through uplink channel resources according to a CSI report priority rule, and the CSI report priority rule is: A priority of a beam report associated with the first target RS resource is higher than a priority of a CSI report associated with the first target RS resource; a priority of a beam report associated with the first target RS resource is higher than a priority of a CSI report associated with the current serving RS resource; a priority of a CSI report associated with the first target RS resource is higher than a priority of a CSI report associated with the current serving RS resource.

[0162] Optionally, the configuration information of the plurality of objects includes upper layer configuration information and / or physical layer configuration information.

[0163] Optionally, the physical layer configuration information includes at least one of RS resource configuration information, CSI reporting configuration information, frequency domain information, subcarrier spacing SCS information, cell radio network temporary identifier C-RNTI information, physical uplink control channel PUCCH information, configuration grant information, path loss reference signal PL-RS information, random access channel RACH resource information, quasi-co-location QCL information, and spatial relationship information.

[0164] Optionally, the configuration information of the CSI report in the configuration information of the current serving object is associated with the RS resource of the first object.

[0165] The apparatus of this embodiment can be used to perform any one of the terminal-side method embodiments, and its specific implementation process and technical effects are similar to those of the terminal-side method embodiments. In particular, reference can be made to the detailed description in the terminal-side method embodiments, and detailed description is omitted here.

[0166] FIG. 7 is a structural schematic diagram 2 of the channel state information measurement and reporting device provided in the embodiment of the present application. As shown in FIG. 7, the channel state information measurement and reporting device provided in the embodiment of the present application includes: A transmitting module 801 for transmitting a target signaling to a terminal, the target signaling being a signaling transmitted before the terminal accesses a first target; and a receiving module 802 for receiving a CSI report reported from the terminal, the CSI report being measured based on the first target RS resource, and the first target RS resource being determined based on the target signaling.

[0167] Optionally, the target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, and the first target is different from the current service target.

[0168] Optionally, the target signaling further includes second signaling carrying indication information of the first object for indicating an index of the first object.

[0169] Optionally, the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

[0170] Optionally, the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated to at least one RS resource associated with at least one of the multiple targets.

[0171] Optionally, the target signaling further includes third signaling carrying at least one of: first target indication information for indicating an index of the first target; RS resource indication information for indicating at least one RS resource of the first target; and CSI report configuration indication information for indicating at least one CSI report associated with the RS resource of the first target.

[0172] The apparatus of this embodiment can be used to perform any one of the terminal-side method embodiments, and its specific implementation process and technical effects are similar to those of the terminal-side method embodiments. In particular, reference can be made to the detailed description in the terminal-side method embodiments, and detailed description is omitted here.

[0173] The channel state information measurement and reporting device in the embodiment of the present application may be an electronic device, or may be a component in an electronic device, such as an integrated circuit or chip. The electronic device may be a terminal, or other devices other than a terminal. Exemplarily, the terminal may include, but is not limited to, the types of terminals 11 listed above, and the other devices may be, for example, a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk terminal, and are not specifically limited in the embodiment of the present application.

[0174] The channel state information measurement and reporting device provided in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an ios operating system, or other possible operating systems, and is not specifically limited in the embodiment of the present application.

[0175] The channel state information measurement and reporting device provided by the embodiment of the present application can implement each process implemented by the method embodiment of Figures 3 to 5, and achieve similar technical effects. In order to avoid duplication, detailed description will be omitted here.

[0176] Optionally, as shown in FIG. 8, the embodiment of the present application further provides a communication device 200. The communication device 200 includes a processor 201 and a memory 202, and the memory 202 stores a program or command executable by the processor 201. For example, when the communication device 200 is a terminal, when the program or command is executed by the processor 201, each step of the embodiment of the channel state information measurement and reporting method is realized, and the same technical effect can be achieved. When the communication device 200 is a network side device, when the program or command is executed by the processor 201, each step of the embodiment of the channel state information measurement and reporting method is realized, and the same technical effect can be achieved. To avoid duplication, detailed description is omitted here.

[0177] The embodiment of the present application further provides a terminal. The terminal includes a processor and a communication interface, the communication interface is used for receiving target signaling sent from a network side device, and the processor is used for determining a reference signal RS resource of a first target according to the target signaling, where the target signaling is a signaling obtained before the terminal accesses the first target, the processor is used for performing CSI measurement according to the RS resource of the first target, and the communication interface is used for performing CSI reporting according to the RS resource of the first target. The terminal embodiment corresponds to the above terminal side method embodiment, and each implementation process and embodiment of the above method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, FIG. 9 is a hardware structure schematic diagram of a terminal for implementing the embodiment of the present application.

[0178] The terminal 900 includes at least some of the following components, but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

[0179] Those skilled in the art can understand that the terminal 900 may further include a power source (e.g., a battery) for supplying power to each component, and the power source may be logically connected to the processor 910 by a power management system, and the power management system may further realize functions such as charge / discharge management and power consumption management. The structure of the terminal shown in FIG. 9 does not limit the terminal, and the terminal may include more or fewer components than those shown, or a combination of some components, or a different component arrangement, and detailed description thereof will be omitted here.

[0180] It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042 for processing image data of still or video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, which may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. The other input devices 9072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and an operation lever. Detailed description is omitted here.

[0181] In the embodiment of the present application, the high frequency unit 901 receives downlink data from the network side device, and then transmits the data to the processor 910 for processing. The high frequency unit 901 can also transmit uplink data to the network side device. Typically, the high frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0182] The memory 909 can be used to store software programs or commands and various data. The memory 909 may mainly include a first storage area for storing programs or commands and a second storage area for storing data, which can store an operating system, applications or commands required for at least one function (e.g., audio playback function, image playback function, etc.). The memory 909 may also include a volatile memory or a non-volatile memory, or the memory 909 may include both volatile and non-volatile memories. Here, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. The volatile memory may be Random Access Memory (RAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synch link Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM). The memory 909 in the embodiments of the present application includes, but is not limited to, these and any other suitable memory.

[0183] The processor 910 may include one or more processing units, and may optionally integrate an application processor that mainly processes operations related to an operating system, a user interface, applications, etc., and a modem processor that mainly processes wireless communication signals, such as a baseband processor, in the processor 910. It is understandable that the modem processor may not be integrated into the processor 910.

[0184] Wherein, the processor 910 receives a target signaling sent from a network side device, and determines a reference signal RS resource of a first target according to the target signaling, where the target signaling is a signaling obtained before the terminal accesses the first target; and performing CSI measurement and reporting based on the first target RS resource.

[0185] In the above embodiment, the terminal can obtain target signaling before accessing the first target, determine reference signal RS resources of the first target based on the target signaling, and perform CSI measurement and reporting based on the RS resources of the first target. Since the acquisition time of the target signaling is advanced from "after the terminal accesses the first target" to "before the terminal accesses the first target", the CSI result of the first target can be reported quickly, and downlink transmission and reception can be performed as soon as possible after cell switching is completed, thereby shortening the downlink interruption time.

[0186] Optionally, the target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, and the first target is different from the current service target.

[0187] Optionally, the step of processor 910 determining a first target reference signal RS resource based on the target signaling further comprises: determining the first object based on the plurality of objects included in the first signaling; determining an RS resource of the first target based on configuration information of a plurality of targets included in the first signaling.

[0188] In the above embodiment, the terminal may determine at least one first target RS resource based on the first signaling.

[0189] Optionally, the processor 910 further comprises: It is used to determine the effective start time and effective end time of the first target RS resource according to a first predetermined rule, and the first predetermined rule includes that the first target RS resource becomes effective after the terminal receives the first signaling, and becomes ineffective after the terminal receives signaling to release the first target RS resource setting.

[0190] Optionally, the target signaling further includes second signaling carrying indication information of the first object for indicating an index of the first object.

[0191] Optionally, the step of processor 910 determining a first target reference signal RS resource based on the target signaling further comprises: determining the first object from the plurality of objects based on the first signaling and the second signaling; determining an RS resource of the first target based on configuration information of the plurality of targets.

[0192] In the above embodiment, the terminal may determine the first target RS resource based on the first signaling and the second signaling.

[0193] Optionally, the processor 910 further comprises: It is used to determine the valid start time and valid end time of the RS resource of the first target according to a second predetermined rule, the second predetermined rule including that the RS resource of the first target is enabled when the second signaling is enabled and disabled when the fourth signaling is enabled, where the fourth signaling is signaling for releasing the RS resource configuration in the first target or fifth signaling, and the fifth signaling is second signaling having a start symbol later than the start symbol of the currently enabled second signaling.

[0194] Optionally, the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

[0195] Optionally, the step of processor 910 determining a first target reference signal RS resource based on the target signaling further comprises: determining the at least one target associated with the aperiodic RS resource activated by the second signaling as a first target; determining a target aperiodic RS resource associated with the at least one target activated by the second signaling as an RS resource of the first target.

[0196] In the above embodiment, the terminal may determine the first target RS resource based on the second signaling.

[0197] Optionally, the processor 910 further comprises: It is used to determine the valid start time and valid end time of the first target RS resource according to a third predetermined rule, the third predetermined rule including that the valid start time of the first target RS resource is the last symbol of the second signaling and the valid end time of the first target RS resource is the last symbol of a non-periodic RS resource activated by the second signaling.

[0198] Optionally, the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated to at least one RS resource associated with at least one of the multiple targets.

[0199] Optionally, the step of processor 910 determining a first target reference signal RS resource based on the target signaling further comprises: determining the at least one target associated with an RS resource associated with the at least one aperiodic CSI report activated by the second signaling as a first target; determining an RS resource associated with the at least one target, which is activated by the second signaling, as an RS resource of the first target.

[0200] In the above embodiment, the terminal may determine the first target RS resource based on the second signaling.

[0201] Optionally, the processor 910 further comprises: is used to determine a valid start time and a valid end time of the first target RS resource according to a fourth predetermined rule, the fourth predetermined rule including: the valid start time of the first target RS resource is the last symbol of the second signaling, and the valid end time of the first target RS resource is the last symbol of an uplink channel resource carrying at least one aperiodic CSI report activated by the second signaling.

[0202] Optionally, the target signaling further includes third signaling carrying at least one of: first target indication information for indicating an index of the first target; RS resource indication information for indicating at least one RS resource of the first target; and CSI report configuration indication information for indicating at least one CSI report associated with the RS resource of the first target.

[0203] Optionally, the step of processor 910 determining a first target reference signal RS resource based on the target signaling further comprises: determining a first object from the plurality of objects based on instruction information of the first object; and determining the first target RS resource based on the indication information of the RS resource and / or the indication information of a CSI report configuration.

[0204] In the above embodiment, the terminal may determine the first target RS resource based on the first signaling and the third signaling.

[0205] Optionally, the processor 910 further comprises: is used to determine a valid start time and a valid end time of the first target RS resource according to a fifth predetermined rule, the fifth predetermined rule including: a valid start time of the first target RS resource being the last symbol of the third signaling or the first symbol after the third signaling becomes valid; and a valid end time of the first target RS resource being the last symbol of an RS resource indicated in the third signaling or the last symbol of an uplink channel resource carrying a CSI report indicated in the third signaling.

[0206] Optionally, the processor 910 The number of RS resources in the plurality of target configuration information; A number of RS resources of the first target associated with all CSI reporting configurations in the first target; The number of RS resources in the first target configuration information; the first target aperiodic RS resource number that is activated by second signaling; and a number of the first target RS resources associated with an aperiodic CSI report triggered by a second signaling; The number of the first target RS resources indicated by the third signaling; and a number of active RS resources of the first target associated with a CSI report indicated in the third signaling.

[0207] Alternatively, from the effective start time to the effective end time of the RS resource of the first target, the number of active RS resources of the first target in the active bandwidth portion is within the range of the number of RS resources indicated by the first terminal capability information; or From the validity start time to the validity end time of the RS resource of the first target, the sum of the number of active RS resources of the first target within the active bandwidth portion and the number of active RS resources of the current service target is within the range of the number of RS resources indicated in the second terminal capability information.

[0208] Optionally, the first terminal capability information is used to indicate a maximum number of first target active RS resources supported by the terminal, and the second terminal capability information is used to indicate a maximum number of cross-cell active RS resources supported by the terminal.

[0209] Optionally, the step of the processor 910 performing CSI measurement and reporting based on the first target RS resource includes: The method includes performing CSI measurements and reporting for the first target RS resource according to a measurement and scheduling restriction criterion or a CPU occupancy criterion.

[0210] In the above embodiment, the terminal performs CSI measurement and reporting of the first target RS resource in advance according to a measurement and scheduling restriction criterion, avoids collision with the measurement and transmission of the current service target, and improves the effectiveness of measurement and scheduling. Similarly, the terminal performs CSI measurement and reporting of the first target RS resource according to a CPU occupancy criterion, rationally sets the CPU occupancy number and / or time, and further improves the efficiency of CSI measurement and reporting.

[0211] Optionally, the step of the processor 910 performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling constraint criterion includes: performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion, the measurement and scheduling restriction criterion comprising: No measurement and scheduling restrictions; The terminal does not receive and / or measure RS resources of the first target that overlap in the frequency domain with synchronization signal block (SSB) resources associated with the first target or the current service target; The terminal does not receive and / or measure the first target RS resource that overlaps in the time domain with the currently served RS resource; In the time domain resource of a first target resource, the terminal does not monitor downlink transmission of the current service target, including a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, and a reference signal; there is a difference of X1 symbols between the first symbol of the first target resource and the first symbol of the first target RS resource, and there is a difference of Y1 symbols between the last symbol of the first target resource and the last symbol of the first target RS resource, where X1 and Y1 are both positive integers; In the time domain resource of the second target resource, the terminal does not perform uplink transmission of the current service target, including a sounding reference signal SRS, a physical uplink control channel PUCCH, and a physical uplink shared channel PUSCH; there is a difference of X2 symbols between the first symbol of the second target resource and the first symbol of the first target RS resource, and there is a difference of Y2 symbols between the last symbol of the second target resource and the last symbol of the first target RS resource, where X2 and Y2 are both positive integers.

[0212] In the above embodiment, the terminal performs CSI measurement and reporting of the first target RS resource that is started in advance according to the measurement and scheduling restriction criterion, avoids collision with the measurement and transmission of the current service target, and improves the effectiveness of measurement and scheduling.

[0213] Optionally, the CPU occupation criterion includes a CPU occupation number criterion and / or a CPU occupation time criterion.

[0214] In the above embodiment, the terminal performs CSI measurement and reporting on the first target RS resource according to a CPU occupancy criterion, and can rationally set the CPU occupancy number and / or time to further improve the efficiency of CSI measurement and reporting.

[0215] Alternatively, when the CPU occupancy criterion includes the CPU occupancy number criterion, the total number of CPUs occupied by the first CSI measurement and report and the second CSI measurement and report is less than or equal to a predetermined maximum CPU number, where the first CSI measurement and report is a CSI measurement and report associated with the first target RS resource, and the second CSI measurement and report is a CSI measurement and report associated with the current serving RS resource.

[0216] Optionally, the step of the processor 910 performing CSI measurement and reporting based on the first target RS resource includes: performing CSI measurement based on the active RS resources of the first target, and obtaining a CSI report including a CSI measurement result; reporting the CSI report to the network side device via uplink channel resources.

[0217] Optionally, the first symbol of the uplink channel resource is X3 symbols or more after the last symbol of the first target RS resource associated with the CSI report, where X3 is a positive integer.

[0218] Optionally, the step of the processor 910 reporting the CSI report to the network side device by uplink channel resources includes reporting the CSI report to the network side device by uplink channel resources according to a CSI report priority rule, wherein the CSI report priority rule is: A priority of a beam report associated with the first target RS resource is higher than a priority of a CSI report associated with the first target RS resource; a priority of a beam report associated with the first target RS resource is higher than a priority of a CSI report associated with the current serving RS resource; a priority of a CSI report associated with the first target RS resource is higher than a priority of a CSI report associated with the current serving RS resource.

[0219] Optionally, the configuration information of the plurality of objects includes upper layer configuration information and / or physical layer configuration information.

[0220] Optionally, the physical layer configuration information includes at least one of RS resource configuration information, CSI reporting configuration information, frequency domain information, subcarrier spacing SCS information, cell radio network temporary identifier C-RNTI information, physical uplink control channel PUCCH information, configuration grant information, path loss reference signal PL-RS information, random access channel RACH resource information, quasi-co-location QCL information, and spatial relationship information.

[0221] Optionally, the configuration information of the CSI report in the configuration information of the current serving object is associated with the RS resource of the first object.

[0222] An embodiment of the present application further provides a network side device, the network side device including a processor and a communication interface, the communication interface being used for sending target signaling to a terminal, where the target signaling is signaling sent before the terminal accesses a first target, and the communication interface being used for receiving a CSI report reported from the terminal, where the CSI report is measured based on an RS resource of the first target, and the RS resource of the first target is determined based on the target signaling. The embodiment of the network side device corresponds to the method embodiment of the above network side device, and each implementation process and embodiment of the above method embodiment can be applied to the embodiment of the network side device, and similar technical effects can be achieved.

[0223] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 10, the network side device 1000 includes an antenna 101, a radio frequency device 102, a baseband device 103, a processor 104 and a memory 105. The antenna 101 is connected to the radio frequency device 102. In the uplink direction, the radio frequency device 102 receives information through the antenna 101, and transmits the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes the information to be transmitted and transmits it to the radio frequency device 102, and the radio frequency device 102 processes the received information before transmitting it through the antenna 101.

[0224] The methods performed by the network side equipment in the above embodiments can be implemented in the baseband device 103, which includes a baseband processor.

[0225] The baseband device 103 may, for example, include at least one baseband board on which multiple chips are installed, and as shown in FIG. 10, one of the chips is, for example, a baseband processor connected to the memory 105 via a bus interface to call a program in the memory 105 to perform the operations of the network equipment shown in the above method embodiments.

[0226] The network side device may further include a network interface 106, which may be, for example, a common public radio interface (CPRI).

[0227] Specifically, the network side device 1000 of the embodiment of the present invention further includes a command or program stored in the memory 105 and executable by the processor 104, and the processor 104 calls the command or program in the memory 105 to execute the method executed by each module shown in Fig. 7, and similar technical effects are achieved. To avoid duplication, detailed description is omitted here.

[0228] The embodiments of the present application further provide a readable storage medium, which stores a program or command, and when the program or command is executed by a processor, each process of the embodiment of the channel state information measurement and reporting method is realized, and the same technical effect can be achieved. In order to avoid repetition, detailed description is omitted here.

[0229] Here, the processor is the processor in the terminal according to the above embodiment. The readable storage medium includes a computer readable storage medium such as a computer read only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.

[0230] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to realize each process of the embodiment of the channel state information measurement and reporting method by executing a program or command, and can achieve the same technical effect. In order to avoid duplication, detailed description is omitted here.

[0231] It should be understood that the chips referred to in the embodiments of this application may also be referred to as system level chips, system chips, chip systems, or systems on chips, and the like.

[0232] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium and executed by at least one processor to realize each process of the embodiments of the channel state information measurement and reporting method, and can achieve the same technical effects. To avoid duplication, detailed description is omitted here.

[0233] An embodiment of the present application further provides a communication system, including a terminal usable for performing the steps of the method described above ... and a network side equipment that can be used for implementing the steps of the method for measuring and reporting channel state information described above.

[0234] It should be noted that in this specification, the terms "comprise", "consist of" or any other variations are intended to include a non-exclusive inclusion, whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not expressly stated or inherent to such process, method, article, or apparatus. Unless otherwise specified, an element limited by the phrase "comprises a" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should also be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions substantially simultaneously or in the reverse order depending on such functions, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to any example may be combined in other examples.

[0235] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can also be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solutions of the present application can be essentially or in the form of a computer software product, which is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes a number of commands that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to execute the methods described in the embodiments of the present application.

[0236] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of the present application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. A step of receiving target signaling transmitted by a network side device by a terminal and determining a reference signal RS resource of a first target based on the target signaling, the target signaling being signaling acquired before the terminal accesses the first target; and the terminal performs CSI measurement and reporting based on the first target RS resource.

2. 2. The method of claim 1, wherein the target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, and the first target is different from the current service target.

3. The step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines the first object based on the plurality of objects included in the first signaling; The method of claim 2 , further comprising: determining, by the terminal, an RS resource of the first target based on configuration information of a plurality of targets included in the first signaling.

4. The method further includes: the terminal determines a valid start time and a valid end time of the first target RS resource according to a first predetermined rule, the first predetermined rule including: the first target RS resource is valid after the terminal receives the first signaling, and is invalid after the terminal receives a signaling to release the first target RS resource configuration. The method according to claim 3.

5. The method of claim 2 , wherein the target signaling further comprises second signaling carrying an indication of the first object for indicating an index of the first object.

6. The step of the terminal determining a first target reference signal RS resource based on the target signaling includes: determining, by the terminal, the first object from the plurality of objects based on the first signaling and the second signaling; The method of claim 5 , comprising: the terminal determining an RS resource of the first target based on configuration information of the plurality of targets.

7. The method further includes a step of the terminal determining a valid start time and a valid end time of the RS resource of the first target according to a second predetermined rule, the second predetermined rule including that the RS resource of the first target is enabled when the second signaling is enabled and disabled when a fourth signaling is enabled, the fourth signaling is a signaling for releasing an RS resource configuration in the first target or a fifth signaling, and the fifth signaling is a second signaling having a start symbol later than a start symbol of a currently enabled second signaling. The method according to claim 6.

8. 3. The method of claim 2, wherein the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

9. The step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines the at least one target associated with the aperiodic RS resource activated by the second signaling as a first target; The method of claim 8, comprising: the terminal determining a target aperiodic RS resource associated with the at least one target, which is activated by the second signaling, as the RS resource of the first target.

10. The terminal further includes determining a valid start time and a valid end time of the first target RS resource according to a third predetermined rule, the third predetermined rule including: a valid start time of the first target RS resource is the last symbol of the second signaling, and a valid end time of the first target RS resource is the last symbol of a non-periodic RS resource activated by the second signaling.

10. The method of claim 9.

11. 3. The method of claim 2, wherein the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated with at least one RS resource associated with at least one of the plurality of targets.

12. The step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines, as a first target, the at least one target associated with an RS resource associated with the at least one aperiodic CSI report activated by the second signaling; The method of claim 11 , comprising: the terminal determining an RS resource associated with the at least one target that is activated by the second signaling as an RS resource of the first target.

13. The terminal further includes determining an effective start time and an effective end time of the first target RS resource according to a fourth predetermined rule, the fourth predetermined rule including: the effective start time of the first target RS resource is the last symbol of the second signaling, and the effective end time of the first target RS resource is the last symbol of an uplink channel resource carrying at least one aperiodic CSI report activated by the second signaling. The method of claim 12.

14. 3. The method of claim 2, wherein the target signaling further includes third signaling carrying at least one of: indication information of the first target for indicating an index of the first target; indication information of RS resources for indicating at least one RS resource of the first target; and indication information of CSI report configuration for indicating at least one CSI report associated with the RS resource of the first target.

15. The step of the terminal determining a first target reference signal RS resource based on the target signaling includes: The terminal determines a first object from the plurality of objects based on instruction information of the first object; The method according to claim 14, further comprising: determining, by the terminal, the first target RS resource based on the indication information of the RS resource and / or the indication information of a CSI report configuration.

16. The terminal further includes a step of determining a valid start time and a valid end time of the first target RS resource according to a fifth predetermined rule, the fifth predetermined rule including: a valid start time of the first target RS resource is the last symbol of the third signaling or the first symbol after the third signaling becomes valid; and a valid end time of the first target RS resource is the last symbol of the RS resource indicated by the third signaling or the last symbol of an uplink channel resource carrying a CSI report indicated by the third signaling. The method of claim 15.

17. The terminal includes: The number of RS resources in the configuration information of the plurality of targets; and A number of RS resources of the first target associated with all CSI reporting configurations in the first target; The number of RS resources in the first target configuration information; a number of the first target aperiodic RS resources that are activated by a second signaling; and a number of RS resources of the first target associated with aperiodic CSI reports triggered by a second signaling; the number of RS resources of the first target indicated by the third signaling; and a number of RS resources of the first target associated with a CSI report indicated in a third signaling.

18. From the effective start time to the effective end time of the RS resource of the first target, the number of active RS resources of the first target in the active bandwidth portion is within the range of the number of RS resources indicated by the first terminal capability information; or The method of claim 17, wherein the sum of the number of active RS resources of the first target within an active bandwidth portion and the number of active RS resources of the current service target is within a range of the number of RS resources indicated in the second terminal capability information from the valid start time to the valid end time of the RS resource of the first target.

19. 20. The method of claim 18, wherein the first terminal capability information is used to indicate a maximum number of first target active RS resources supported by the terminal, and the second terminal capability information is used to indicate a maximum number of cross-cell active RS resources supported by the terminal.

20. The step of the terminal performing CSI measurement and reporting based on the first target RS resource includes: The method of claim 1 , comprising: the terminal performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion or a CPU occupancy criterion.

21. The step of the terminal performing CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion includes: The terminal performs CSI measurement and reporting for the first target RS resource according to a measurement and scheduling restriction criterion, and the measurement and scheduling restriction criterion includes: No measurement and scheduling restrictions; The terminal does not receive and / or measure RS resources of the first target that overlap in the frequency domain with synchronization signal block (SSB) resources associated with the first target or a current service target; The terminal does not receive and / or measure the first target RS resource that overlaps in time domain with the current serving target RS resource; In a time domain resource of a first target resource, the terminal does not monitor downlink transmission of the current service target, including a physical downlink control channel PDCCH, a physical downlink shared channel PDSCH, and a reference signal; there is a difference of X1 symbols between a first symbol of the first target resource and a first symbol of the first target RS resource; and there is a difference of Y1 symbols between a last symbol of the first target resource and a last symbol of the first target RS resource, where X1 and Y1 are both positive integers; the terminal does not perform uplink transmission of the current service target including a sounding reference signal (SRS), a physical uplink control channel (PUCCH), and a physical uplink shared channel (PUSCH) in a time domain resource of a second target resource; there is a difference of X2 symbols between a first symbol of the second target resource and a first symbol of the first target RS resource; and there is a difference of Y2 symbols between a last symbol of the second target resource and a last symbol of the first target RS resource, where X2 and Y2 are both positive integers.

22. The method of claim 20 , wherein the CPU occupancy metric comprises a CPU occupancy number metric and / or a CPU occupancy time metric.

23. 23. The method of claim 22, wherein when the CPU occupancy criterion includes the CPU occupancy time criterion, a total number of CPUs occupied by a first CSI measurement and report and a second CSI measurement and report is less than or equal to a predetermined maximum number of CPUs, the first CSI measurement and report is a CSI measurement and report associated with the RS resources of the first target, and the second CSI measurement and report is a CSI measurement and report associated with the RS resources of a current serving target.

24. The step of the terminal performing CSI measurement and reporting based on the first target RS resource includes: The terminal performs CSI measurement based on the first target active RS resource, and obtains a CSI report including a CSI measurement result; The method according to claim 2 , further comprising: the terminal reporting the CSI report to the network side equipment via an uplink channel resource.

25. 25. The method of claim 24, wherein the first symbol of the uplink channel resource is X3 symbols or more after a last symbol of the first target RS resource associated with the CSI report, where X3 is a positive integer.

26. The step of the terminal reporting the CSI report to the network side device by uplink channel resources includes: The terminal reports the CSI report to the network side device by uplink channel resources according to a CSI report priority rule, the CSI report priority rule comprising: A priority of a beam report associated with the first target RS resource is higher than a priority of a CSI report associated with the first target RS resource; A priority of a beam report associated with the RS resource of the first target is higher than a priority of a CSI report associated with the RS resource of the current serving target; and a priority of a CSI report associated with the RS resources of the first target is higher than a priority of a CSI report associated with the RS resources of the current serving target.

27. The method according to claim 2 , wherein the configuration information of the plurality of objects comprises higher layer configuration information and / or physical layer configuration information.

28. 28. The method of claim 27, wherein the physical layer configuration information includes at least one of RS resource configuration information, CSI report configuration information, frequency domain information, subcarrier spacing SCS information, cell radio network temporary identifier C-RNTI information, physical uplink control channel PUCCH information, configuration grant information, path loss reference signal PL-RS information, random access channel RACH resource information, quasi-co-location QCL information, and spatial relationship information.

29. The method of claim 28, wherein the configuration information of the current service target, the configuration information of the CSI report, is associated with an RS resource of the first target.

30. A step of a network side device transmitting target signaling to a terminal, the target signaling being signaling transmitted before the terminal accesses a first target; A method for measuring and reporting channel state information (CSI), comprising: a step in which the network side equipment receives a CSI report reported from the terminal, the CSI report being measured based on the first target RS resource, and the first target RS resource being determined based on the target signaling.

31. 31. The method of claim 30, wherein the target signaling includes first signaling for indicating configuration information of a plurality of targets, the plurality of targets including the first target, or the first target and a current service target, and the first target is different from the current service target.

32. The method of claim 31 , wherein the target signaling further comprises second signaling carrying an indication of the first object for indicating an index of the first object.

33. 32. The method of claim 31 , wherein the target signaling further includes second signaling for activating at least one aperiodic RS resource, the at least one aperiodic RS resource including at least one target aperiodic RS resource associated with at least one of the plurality of targets.

34. 32. The method of claim 31 , wherein the target signaling further includes second signaling for activating at least one aperiodic CSI report, the at least one aperiodic CSI report being associated with at least one RS resource associated with at least one of the multiple targets.

35. 32. The method of claim 31 , wherein the target signaling further includes third signaling carrying at least one of: indication information of the first target for indicating an index of the first target; indication information of RS resources for indicating at least one RS resource of the first target; and indication information of CSI report configuration for indicating at least one CSI report associated with the RS resource of the first target.

36. A receiving module for receiving a target signaling transmitted from a network side device and determining a reference signal RS resource of a first target based on the target signaling, the target signaling being a signaling acquired before a terminal accesses the first target; a measurement and reporting module for performing CSI measurement and reporting based on the first target RS resource; A channel state information (CSI) measurement and reporting device, comprising:

37. a transmission module for transmitting target signaling to the terminal, the target signaling being signaling transmitted before the terminal accesses a first object; a receiving module for receiving a CSI report reported from the terminal, the CSI report being measured based on a first target RS resource, the first target RS resource being determined based on the target signaling; and

38. A terminal including a processor and a memory, the memory storing a program or command executable by the processor, the program or command being executed by the processor to realize steps of the method for measuring and reporting channel state information (CSI) according to any one of claims 1 to 29.

39. A network side device comprising a processor and a memory, the memory storing a program or command executable by the processor, the program or command being executed by the processor to realize steps of the method for measuring and reporting channel state information (CSI) according to any one of claims 30 to 35.

40. A readable storage medium having stored thereon a program or command which, when executed by a processor, causes steps of the method for measuring and reporting channel state information (CSI) according to any one of claims 1 to 29 to be realized, or causes steps of the method for measuring and reporting channel state information (CSI) according to any one of claims 30 to 35 to be realized.

Images