Method and apparatus in node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. A first node receives a first signaling and a second signaling. The first signaling indicates a first TCI state; the second signaling triggers a first CSI, the first CSI depends on a first reporting configuration, RS resources indicated by the first reporting configuration for channel measurement comprise a first RS resource and a second RS resource, a first transmission opportunity is a transmission opportunity of the first RS resource, a second transmission opportunity is a transmission opportunity of the second RS resource, and the first transmission opportunity is a transmission opportunity of the second RS resource. The first transmission opportunity and the second transmission opportunity are mutually orthogonal; the first time slot depends on the first signaling; the second transmission opportunity is not earlier than the first time slot, and the processing of the first CSI depends on the relationship of the first time slot and the first transmission opportunity in the time domain. According to the method, the accuracy of channel measurement is ensured, and the CSI reporting precision is improved.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a scheme and apparatus related to CSI (Channel Status Information) in a wireless communication system. Background Art

[0002] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system and NR (New Radio) system. Additional spatial degrees of freedom are obtained by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment). Multiple antennas form beams pointing in a specific direction through beamforming to improve communication quality. The degrees of freedom provided by the multi-antenna system can be used to improve transmission reliability and / or throughput. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points) / panels (antenna panels), additional diversity gain can be obtained by utilizing the spatial differences between different TRPs / panels. It is a common method in 3GPP for UE to report CSI (Channel State Information) to assist network equipment in multi-antenna operation and beamforming, etc. In order to facilitate the UE to obtain CSI, the NR system will configure CSI-RS (Channel State Information-Reference Signal) resources for the UE for measurement, and configure a quasi-co-location relationship (such as Transmission Configuration Indicator state, TCI state) for at least part of the CSI-RS resources to facilitate the UE to perform beam-related measurements.

[0003] In NRR (release) 17, a solution (unified TCI) has been adopted to update the TCI status of the control channel, data channel and CSI-RS using DCI (Downlink Control Information), which improves the speed and efficiency of beam updating. The TCI status indicated by DCI takes effect from a specific time. Summary of the invention

[0004] In NR (New Radio) R (release) 18, CSI reporting is enhanced to meet higher requirements (such as but not limited to multiple TRP / panel, channel prediction, medium / high-speed mobile UE, and more flexible duplex mode or full-duplex mode, etc.). The applicant has found through research that the processing of enhanced CSI reporting is a problem that needs to be solved, especially under the unifiedTCI architecture. It should be noted that although the above description uses enhanced CSI reporting and unified TCI as examples, the present application is also applicable to other schemes, such as traditional CSI reporting and R15 / 16 TCI architecture. In addition, the use of a unified solution for different scenarios (including but not limited to enhanced CSI reporting, unified TCI, traditional CSI reporting and R15 / 16 TCI architecture) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments in the first node of the present application and the features in the embodiments can be applied to the second node, and vice versa. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0005] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0006] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0007] receiving a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0008] receiving a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, where the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other;

[0009] Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0010] As an embodiment, the problem to be solved by the present application includes: in the scenario where the DCI indicates a TCI (Transmission Configuration Indicator) state, how to determine the processing for the first CSI. In the above method, the processing for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which solves this problem.

[0011] As an embodiment, the essence of the above method includes: determining the processing for the first CSI according to the TCI status or quasi co-location relationship of the first transmission opportunity and the second transmission opportunity.

[0012] As an embodiment, the essence of the above method includes: determining the processing of the first CSI according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or quasi co-location relationship.

[0013] As an embodiment, the benefits of the above method include: dynamically optimizing the processing of the first CSI, improving the accuracy and efficiency of CSI reporting, and improving the overall system performance.

[0014] As an embodiment, the benefits of the above method include: having good backward compatibility.

[0015] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node sends the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0016] As an embodiment, the essence of the above method includes: determining whether to send the first CSI according to the TCI status or quasi-co-location relationship between the first transmission opportunity and the second transmission opportunity.

[0017] As an embodiment, the essence of the above method includes: determining whether to send the first CSI according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or quasi co-location relationship.

[0018] As an embodiment, the benefits of the above method include: avoiding sending inaccurate CSI reports and saving CSI reporting overhead.

[0019] As an embodiment, the benefits of the above method include: reducing the energy consumption of UE.

[0020] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node updates the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0021] As an embodiment, the essence of the above method includes: determining whether the first node updates the CSI for the first CSI according to the TCI status or quasi-co-location relationship between the first transmission opportunity and the second transmission opportunity.

[0022] As an embodiment, the essence of the above method includes: determining whether the first node updates the CSI for the first CSI according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or a quasi-co-location relationship.

[0023] As an embodiment, the benefits of the above method include: ensuring the accuracy of CSI reporting.

[0024] As an embodiment, the advantages of the above method include: minor changes to the standard and good backward compatibility.

[0025] As an embodiment, the benefits of the above method include: saving the occupancy of CSI processing units (processing units) on the UE side.

[0026] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that: the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0027] As an embodiment, the essence of the above method includes: determining the PMI included in the first CSI according to the TCI status or quasi-co-location relationship between the first transmission opportunity and the second transmission opportunity.

[0028] As an embodiment, the essence of the above method includes: determining the PMI included in the first CSI according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or quasi co-location relationship.

[0029] As an embodiment, the benefits of the above method include: ensuring the accuracy of CSI reporting.

[0030] As an embodiment, the benefits of the above method include: flexibly adjusting the content of CSI reporting and better balancing the overhead and accuracy of CSI reporting.

[0031] As an embodiment, the benefits of the above method include: saving signaling overhead related to CSI configuration.

[0032] As an embodiment, the benefits of the above method include: making full use of each CSI reporting opportunity, providing more information to the network side, and helping the network side to optimize the overall system performance.

[0033] According to one aspect of the present application, it is characterized in that the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0034] As an embodiment, the essence of the above method includes: determining the time window targeted by the first PMI according to the TCI status or quasi-co-location relationship between the first transmission opportunity and the second transmission opportunity.

[0035] As an embodiment, the essence of the above method includes: determining the time window targeted by the first PMI according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or quasi co-location relationship.

[0036] As an embodiment, the essence of the above method includes: determining whether the first PMI includes channel prediction or CSI for medium / high speed UE according to whether the first transmission opportunity and the second transmission opportunity have the same TCI state or quasi co-location relationship.

[0037] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel prediction or CSI reporting for medium / high speed UEs.

[0038] As an embodiment, the benefits of the above method include: flexibly adjusting the content of CSI reporting, making full use of each CSI reporting opportunity, and providing more information to the network side.

[0039] As an embodiment, the benefits of the above method include: saving signaling overhead.

[0040] According to one aspect of the present application, it is characterized in that the RS resources for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[0041] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0042] As an embodiment, the benefits of the above method include: good backward compatibility.

[0043] According to one aspect of the present application, it is characterized in that the resources used for interference measurement indicated by the first reporting configuration include a first CSI resource.

[0044] As an embodiment, the advantages of the above method include: good backward compatibility and minor changes to the standard.

[0045] According to one aspect of the present application, it is characterized in that the first node is a user equipment.

[0046] According to one aspect of the present application, it is characterized in that the first node is a relay node.

[0047] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0048] Sending a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0049] Sending a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other;

[0050] Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0051] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first CSI is sent depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0052] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means: whether to update the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0053] According to one aspect of the present application, it is characterized in that the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that: the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0054] According to one aspect of the present application, it is characterized in that the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0055] According to one aspect of the present application, it is characterized in that the RS resources for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[0056] According to one aspect of the present application, it is characterized in that the resources used for interference measurement indicated by the first reporting configuration include a first CSI resource.

[0057] According to one aspect of the present application, it is characterized in that the second node is a base station.

[0058] According to one aspect of the present application, it is characterized in that the second node is a user equipment.

[0059] According to one aspect of the present application, it is characterized in that the second node is a relay node.

[0060] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0061] A first processor receives a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0062] The first processor receives a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, where the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other;

[0063] Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0064] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0065] The second processor sends a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0066] The second processor sends a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other;

[0067] Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0068] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0069] The accuracy of channel measurement is guaranteed and the accuracy of CSI reporting is improved.

[0070] The accuracy of channel measurements used for channel prediction or for calculating CSI reporting of medium / high speed UEs is guaranteed.

[0071] Improved system performance.

[0072] Has good backward compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0074] Figure 1 A flowchart of first signaling and second signaling according to an embodiment of the present application is shown;

[0075] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0076] Figure 3A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0077] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0078] Figure 5 shows transmission between a first node and a second node according to an embodiment of the present application;

[0079] Figure 6 A schematic diagram showing a relationship between a first time slot and a first transmission opportunity in a time domain according to an embodiment of the present application for processing of a first CSI;

[0080] Figure 7 A schematic diagram showing a relationship between a first time slot and a first transmission opportunity in a time domain according to an embodiment of the present application for processing of a first CSI;

[0081] Figure 8 A schematic diagram showing a relationship between a first time slot and a first transmission opportunity in a time domain according to an embodiment of the present application for processing of a first CSI;

[0082] Fig. 9 A schematic diagram of a first PMI according to an embodiment of the present application is shown;

[0083] Fig.10 A schematic diagram showing a first PMI for at least one time window according to an embodiment of the present application is shown;

[0084] Fig.11 A schematic diagram showing at least one matrix set and at least one time window according to an embodiment of the present application is shown;

[0085] Fig.12 A schematic diagram showing a first CQI group depending on a first CSI according to an embodiment of the present application is shown;

[0086] Fig.13 A schematic diagram showing K transmission opportunities according to an embodiment of the present application is shown;

[0087] Fig.14 A schematic diagram of a first CSI resource according to an embodiment of the present application is shown;

[0088] Fig.15 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0089] Fig.16A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0090] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. Based on considerations such as performance, flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, such as but not limited to the attached drawings. Figure 1 The embodiments and appendix Figure 5 -Attached Fig.16 The embodiments in Figure 5 The embodiments and appendix Figure 6 -Attached Fig.16 The embodiments in , etc.

[0091] Example 1

[0092] Embodiment 1 illustrates a flowchart of the first signaling and the second signaling according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the illustrated 100, each box represents a step. In particular, the order of the steps in the boxes does not represent a specific time sequence between the steps.

[0093] In Embodiment 1, the first node in the present application receives a first signaling in step 101; and receives a second signaling in step 102. The first signaling indicates a first TCI state, the first signaling is a DCI; the second signaling triggers a first CSI, the first CSI depends on a first reporting configuration, the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, the first transmission opportunity is a transmission opportunity of the first RS resource, the second transmission opportunity is a transmission opportunity of the second RS resource, the first transmission opportunity and the second transmission opportunity are mutually orthogonal; the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0094] As an embodiment, the first signaling includes a DCI for a downlink grant (DownLinkGrant).

[0095] As an embodiment, the first signaling is a DCI for downlink granting.

[0096] As an embodiment, the first signaling is DCI format 1_1 or DCI format 1_2.

[0097] As an embodiment, the CRC (Cyclic redundancy check) of the first signaling is scrambled by C (Cell)-RNTI (Radio Network Temporary Identifier).

[0098] As an embodiment, the CRC of the first signaling is scrambled by MCS (Modulation and Coding Scheme)-C-RNTI.

[0099] As an embodiment, the CRC of the first signaling is scrambled by CS (Configured Scheduling)-RNTI.

[0100] As an embodiment, the first signaling indicates a DCI field 'Transmission configuration indication' codepoint mapped to the first TCI (Transmission Configuration Indicator) state.

[0101] As an embodiment, the DCI field 'Transmission configuration indication' in the first signaling indicates the first TCI state.

[0102] As an embodiment, the value of the DCI field 'Transmission configuration indication' in the first signaling is equal to the DCI field 'Transmission configuration indication' code point mapped to the first TCI state.

[0103] As an embodiment, the first TCI state configures a quasi co-location relationship between DMRS (DeModulation Reference Signals) of at least two downlink channels and one or two downlink reference signals, and the at least two downlink channels include at least one PDCCH (Physical Downlink Control Channel) and at least one PDSCH (Physical Downlink Shared CHannel).

[0104] As an embodiment, the first TCI state configures a quasi-co-site relationship between the DMRS of at least two downlink channels and one or two downlink reference signals, and is used to determine the transmit spatial filters (Tx spatial filter) of at least two uplink channels; the at least two downlink channels include at least one PDCCH and at least one PDSCH, and the at least two uplink channels include at least one PUSCH (Physical Uplink Shared Channel) and at least one PUCCH (Physical Uplink Control Channel).

[0105] As an embodiment, the second signaling includes physical layer signaling.

[0106] As an embodiment, the second signaling includes dynamic signaling.

[0107] As an embodiment, the second signaling includes layer 1 (L1) signaling.

[0108] As an embodiment, the second signaling includes DCI.

[0109] As an embodiment, the second signaling is a DCI.

[0110] As an embodiment, the second signaling is a DCI used for uplink grant (UpLink Grant).

[0111] As an embodiment, the second signaling is DCI format 0_1 ​​or DCI format 0_2.

[0112] As an embodiment, the CRC of the second signaling is scrambled by C-RNTI.

[0113] As an embodiment, the CRC of the second signaling is scrambled by MCS-C-RNTI.

[0114] As an embodiment, the CRC of the second signaling is scrambled by the CS-RNTI.

[0115] As an embodiment, the second signaling includes MAC CE (Medium Access Control layer Control Element).

[0116] As an embodiment, the second signaling is earlier than the first signaling in the time domain.

[0117] As an embodiment, the second signaling is later than the first signaling in the time domain.

[0118] As an embodiment, the first signaling and the second signaling are transmitted in the same cell.

[0119] As an embodiment, the first signaling and the second signaling are transmitted in the same BWP (Bandwidth part).

[0120] As an embodiment, the second signaling triggers the first node to report the first CSI (Channel state information).

[0121] As an embodiment, the second signaling indicates the time domain resources allocated to the first CSI.

[0122] As an embodiment, the second signaling indicates the time-frequency resources allocated to the first CSI.

[0123] As an embodiment, the first CSI is a CSI report of the first reporting configuration.

[0124] As an embodiment, the first CSI is a CSI reporting instance of the first reporting configuration.

[0125] As an embodiment, the first CSI is the CSI carried in a CSI report of the first reporting configuration.

[0126] As an embodiment, the second signaling triggering the first CSI means that the second signaling triggers a CSI report configured in the first reporting.

[0127] As an embodiment, the first reporting configuration is a CSI reporting configuration.

[0128] As an embodiment, the first reporting configuration is a CSI Reporting setting.

[0129] As an embodiment, the first reporting configuration is a CSI-ReportConfig IE.

[0130] As an embodiment, the first reporting configuration is a CSIReporting setting configured by a CSI-ReportConfig IE.

[0131] As an embodiment, the first reporting configuration is identified by a CSI-ReportConfigId.

[0132] As an embodiment, the first reporting configuration is carried by RRC (Radio Resource Control) signaling.

[0133] As an embodiment, the first reporting configuration is carried by at least one RRC IE (Information Element).

[0134] As an embodiment, the first reporting configuration is configured by at least one RRC IE.

[0135] As an embodiment, the first reporting configuration is an RRC IE.

[0136] As an embodiment, the first reporting configuration is carried by a CSI-ReportConfig IE.

[0137] As an embodiment, the first reporting configuration is configured by a CSI-ReportConfig IE.

[0138] As an embodiment, the first reporting configuration is carried by the CSI-MeasConfig IE.

[0139] As an embodiment, the first reporting configuration is configured by CSI-MeasConfig IE.

[0140] As an embodiment, the first reporting configuration is aperiodic.

[0141] As an embodiment, the first CSI is generated according to the first reporting configuration.

[0142] As an embodiment, the first CSI is reported according to the first reporting configuration.

[0143] As an embodiment, the first reporting configuration indicates (one or more) RS resources used to obtain channel measurement for calculating the first CSI.

[0144] As an embodiment, the first reporting configuration indication is used to obtain (one or more) CSI-RS resources and / or (one or more) CSI-IM (Channel State Information-Interference Measurement) resources for calculating interference measurement of the first CSI.

[0145] As an embodiment, the first reporting configuration indicates a PUCCH resource used to transmit the first CSI.

[0146] As an embodiment, the first reporting configuration indicates a reporting quantity (report quantity) of the first CSI.

[0147] As an embodiment, the first CSI includes one or more of CQI (Channel quality indicator), PMI (Precoding Matrix Indicator), CRI (CSI-RS Resource Indicator), LI (Layer Indicator), RI (Rank Indicator), SSBRI (SS / PBCH Block Resource Indicator), L1-RSRP (Layer 1 reference signal received power) or L1-SINR (Layer 1-Signal-to-Interference and Noise Ratio).

[0148] As an embodiment, the first reporting configuration indicates the frequency domain resources related to (relate to) the first CSI.

[0149] As an embodiment, the frequency domain resources related to (relate to) by the first CSI are a first sub-band number of sub-bands, the first sub-band number of sub-bands is configured by a higher layer parameter, and the first sub-band number is a positive integer.

[0150] As an embodiment, the first subband number is configured by a higher layer parameter 'reportFreqConfiguration'.

[0151] As an embodiment, the first subband or subbands are configured by a higher layer parameter 'csi-ReportingBand'.

[0152] As an embodiment, the first CSI includes CSI reported for all or part of the subbands among several subbands of the first subband.

[0153] As an embodiment, the first CSI includes CSI reported for each subband of several subbands of the first subband.

[0154] As an embodiment, a subband includes one or more PRBs (Physical Resource blocks) that are continuous in the frequency domain.

[0155] As an embodiment, except for the subband located at the edge of the BWP, the number of PRBs included in other subbands is the same.

[0156] As an embodiment, except for the subbands located at the edge of the BWP, the number of PRBs included in other subbands increases as the bandwidth of the BWP increases.

[0157] As an embodiment, except for the subband located at the edge of the BWP, the number of PRBs included in any subband is P1, and P1 is a positive integer greater than 1.

[0158] As an embodiment, P1 is a positive integer multiple of 4.

[0159] As an embodiment, the P1 is indicated by higher layer signaling.

[0160] As an embodiment, the P1 is related to the number of PRBs included in the BWP.

[0161] As an embodiment, the number of PRBs included in the starting subband in a BWP is P1-(Ns mod P1); the number of PRBs included in the last subband in a BWP is (Ns+Nw)modP1 or P1, where Ns is the index of the starting PRB in the BWP, and Nw is the number of PRBs included in the BWP.

[0162] As an embodiment, the subcarrier spacing corresponding to a PRB or a subband is fixed.

[0163] As an embodiment, the subcarrier spacing corresponding to a PRB or a subband varies with the frequency range (frequencyRange) to which it belongs.

[0164] As an embodiment, the second signaling indicates a first trigger state, and the first trigger state indicates the first reporting configuration.

[0165] As an embodiment, the first trigger state is a CSI trigger state (CSI trigger state).

[0166] As an embodiment, the first trigger state is configured by higher-layer parameters.

[0167] As an embodiment, the first trigger state is configured by RRC signaling.

[0168] As an embodiment, the first trigger state is configured by a higher layer parameter 'CSI-AperiodicTriggerStateList'.

[0169] As an embodiment, the higher layer parameter 'CSI-AperiodicTriggerStateList' configures at least one CSI trigger state, and the first trigger state is one of the at least one CSI trigger state.

[0170] As an embodiment, the first trigger state includes all or part of the information in CSI-AperiodicTriggerStateListIE.

[0171] As an embodiment, the first trigger state includes information in a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList IE.

[0172] As an embodiment, the second signaling triggers a CSI report of the first reporting configuration by indicating the first trigger state.

[0173] As an embodiment, the second signaling triggers the first CSI by indicating the first trigger state.

[0174] As an embodiment, the second signaling indicates a DCI domain 'CSIrequest' code point mapped to the first trigger state.

[0175] As an embodiment, MAC CE is used to map the first trigger state to a code point in the DCI field 'CSI request'.

[0176] As an embodiment, the DCI field 'CSI request' in the second signaling indicates the first trigger state.

[0177] As an embodiment, the value of the DCI field 'CSI request' in the second signaling is equal to the DCI field 'CSI request' code point mapped to the first trigger state.

[0178] As an embodiment, the value of the DCI field 'CSI request' in the second signaling is equal to i, and the first trigger state is the i-th CSI trigger state among at least one CSI trigger state configured by the higher layer parameter 'CSI-AperiodicTriggerStateList'; and i is a positive integer.

[0179] As an embodiment, the first trigger status indicates the CSI-ReportConfigId of the first reporting configuration.

[0180] As an embodiment, the first trigger state includes a CSI-AssociatedReportConfigInfo indicating a CSI-ReportConfigId of the first reporting configuration.

[0181] As an embodiment, a CSI report of the first reporting configuration is configured for multiple time windows, and the multiple time windows are orthogonal to each other.

[0182] As a sub-embodiment of the above embodiment, the number of time windows in the multiple time windows depends on the first reporting configuration.

[0183] As an embodiment, the problem to be solved by the present application includes: when the first CSI is configured for multiple time windows that are mutually orthogonal to each other, how to determine the processing for the first CSI.

[0184] As an embodiment, the essence of the above method includes: the first CSI is configured to report channel prediction or CSI for medium / high speed UE; the problem to be solved by this application includes: how to determine the processing of CSI configured to report channel prediction or for medium / high speed UE.

[0185] As an embodiment, in the above method, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which solves this problem.

[0186] As an embodiment, the benefits of the above method include: optimizing CSI reporting according to the specific situation of the RS used for channel measurement.

[0187] As an embodiment, the benefits of the above method include: improving the accuracy of CSI reporting, thereby improving the overall performance of the system.

[0188] As an embodiment, the benefits of the above method include: good backward compatibility.

[0189] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration only include the first RS resources and the second RS resources.

[0190] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include at least one RS resource other than the first RS resource and the second RS resource.

[0191] As an embodiment, the first RS resource is a CSI-RS (Channel State Information-Reference Signal) resource, and the second RS resource is a CSI-RS resource.

[0192] As an embodiment, the first RS resource is an NZP (non-zero-power) CSI-RS resource, and the second RS resource is an NZP CSI-RS resource.

[0193] As an embodiment, the first RS resource is configured by one NZP-CSI-RS-Resource IE, and the second RS resource is configured by one NZP-CSI-RS-Resource IE.

[0194] As an embodiment, the first RS resource and the second RS resource are configured by different NZP-CSI-RS-Resource IEs respectively.

[0195] As an embodiment, the first RS resource is identified by an NZP-CSI-RS-ResourceId, and the second RS resource is identified by an NZP-CSI-RS-ResourceId.

[0196] As an embodiment, the first RS resource and the second RS resource are respectively identified by different NZP-CSI-RS-ResourceIds.

[0197] As an embodiment, the first RS resource and the second RS resource are both non-periodic.

[0198] As an embodiment, the first RS resource and the second RS resource correspond to the same subcarrier spacing configuration.

[0199] As an embodiment, the first RS resources and the second RS resources are configured in the same cell.

[0200] As an embodiment, the first RS resource and the second RS resource are configured on the same BWP.

[0201] As an embodiment, in the first reporting configuration, the first RS resources and the second RS resources are configured in the same cell.

[0202] As an embodiment, in the first reporting configuration, the first RS resource and the second RS resource are configured on the same BWP.

[0203] As an embodiment, the first RS resource is configured with at least one port, the second RS resource is configured with at least one port, and the number of ports configured with the first RS resource is equal to the number of ports configured with the second RS resource.

[0204] As an embodiment, the port refers to: an RS port.

[0205] As an embodiment, the port refers to: a CSI-RS port.

[0206] As an embodiment, the port refers to: an antenna port.

[0207] As an embodiment, the ports with the same index of the first RS resource and the second RS resource are the same port.

[0208] As an embodiment, the problem to be solved by the present application includes: when the port with the same index as the first RS resource and the second RS resource used for channel measurement is the same port, how to determine the processing for the first CSI.

[0209] As an embodiment, the essence of the above method includes: the first RS resource and the second RS resource can be used for channel prediction or to provide channel measurement for CSI reporting of medium / high-speed UEs, and the first CSI includes channel prediction or CSI for medium / high-speed UEs; the problems to be solved by this application include: how to determine the processing of CSI including channel prediction or for medium / high-speed UEs.

[0210] As an embodiment, in the above method, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which solves this problem.

[0211] As an embodiment, the benefits of the above method include: optimizing the processing of CSI reporting according to whether RS ​​resources used for channel measurement have the same TCI state.

[0212] As an embodiment, the benefits of the above method include: improving the accuracy of CSI reporting, thereby improving the overall performance of the system.

[0213] As an embodiment, the benefits of the above method include: good backward compatibility.

[0214] As an embodiment, the ports of the first RS resource and the second RS resource having the same index are the same port means that the first node considers that the ports of the first RS resource and the second RS resource having the same index are the same port.

[0215] As an embodiment, the ports of the first RS resource and the second RS resource having the same index are the same port means that the first node assumes that the ports of the first RS resource and the second RS resource having the same index are the same port.

[0216] As an embodiment, two ports being the same port means that a channel on which a symbol on one of the two ports is conveyed can be inferred from a channel on which a symbol on the other of the two ports is conveyed.

[0217] As an embodiment, the two ports are the same port, which means that the first node can perform joint channel estimation based on signals received on the two ports.

[0218] As an embodiment, the two ports being the same port means that the two ports use the same transmit spatial filter (Tx spatial filter) and precoding.

[0219] As an embodiment, the higher layer parameter indicates that the ports with the same index of the first RS resource and the second RS resource are the same port.

[0220] As an embodiment, the first RS resource and the second RS resource are configured with the same starting PRB and PRB number.

[0221] As an embodiment, the first RS resource and the second RS resource are configured with the same cdm type.

[0222] As an embodiment, the first RS resource and the second RS resource are configured with the same density.

[0223] As an embodiment, the first RS resource and the second RS resource are configured with the same density measured in units of the number of REs (Resource elements) per port per PRB.

[0224] As an embodiment, the first RS resource and the second RS resource occupy the same RE in a time-frequency unit.

[0225] As an embodiment, the time-frequency unit refers to a resource block (resourceblock).

[0226] As an embodiment, one of the time-frequency units is defined as a time slot in the time domain and as a PRB in the frequency domain.

[0227] As an embodiment, the first RS resource and the second RS resource have the same pattern.

[0228] As an embodiment, the first RS resource and the second RS resource both belong to a first RS resource set, and the first RS resource set is a CSI-RS resource set.

[0229] As an embodiment, the first RS resource set is an NZP CSI-RS resource set.

[0230] As an embodiment, the first RS resource set is configured by an NZP-CSI-RS-ResourceSet.

[0231] As an embodiment, the first RS resource set is identified by an NZP-CSI-RS-ResourceSetId.

[0232] As an embodiment, the first RS resource set is non-periodic.

[0233] As an embodiment, the NZP-CSI-RS-ResourceSet IE configuring the first RS resource set indicates that the ports having the same index as the first RS resource and the second RS resource are the same ports.

[0234] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include the first RS resource set.

[0235] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration only include the first RS resource set.

[0236] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include at least one RS resource set other than the first RS resource set.

[0237] As an embodiment, the first reporting configuration indicates that the RS resources used for channel measurement include the first RS resources and the second RS resources by indicating that the RS resources used for channel measurement include the first RS resource set.

[0238] As an embodiment, the RS resources used for channel measurement refer to: RS resources and / or RS resource sets indicated by the 'resourcesForChannelMeasurement' field of the first reporting configuration.

[0239] As an embodiment, the second signaling triggers the first node to receive RS in the first transmission opportunity and the second transmission opportunity.

[0240] As an embodiment, the second signaling triggers the first node to receive RS in the first RS resource and the second RS resource.

[0241] As an embodiment, the second signaling triggers the first node to receive RS in the first RS resource set.

[0242] As an embodiment, the RS resources used for channel measurement include multiple RS resource sets, the first RS resource set is one of the multiple RS resource sets, and RRC signaling indicates the first RS resource set from the multiple RS resource sets.

[0243] As an embodiment, the RS resources used for channel measurement are composed of the multiple RS resource sets.

[0244] As an embodiment, the first trigger state indicates the first RS resource set from among the multiple RS resource sets.

[0245] As an embodiment, the first trigger state does not configure the TCI state for the first RS resource and the second RS resource.

[0246] As an embodiment, the first trigger state does not include a 'qcl-info' field for the first RS resource and the second RS resource.

[0247] As an embodiment, the first trigger state includes a first CSI-AssociatedReportConfigInfo, and the first CSI-AssociatedReportConfigInfo indicates a CSI-ReportConfigId of the first reporting configuration; the first CSI-AssociatedReportConfigInfo includes a 'nzp-CSI-RS' field, but does not include a 'qcl-info' field.

[0248] As a sub-embodiment of the above embodiment, the 'nzp-CSI-RS' field included in the first CSI-AssociatedReportConfigInfo indicates the first RS resource and the second RS resource.

[0249] As a sub-embodiment of the above embodiment, the 'nzp-CSI-RS' field included in the first CSI-AssociatedReportConfigInfo indicates the first RS resource set.

[0250] As a sub-embodiment of the above embodiment, the RS resources used for channel measurement include the multiple RS resource sets, and the 'nzp-CSI-RS' field of the first CSI-AssociatedReportConfigInfo indicates the first RS resource set from the multiple RS resource sets.

[0251] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the first transmission opportunity and the second transmission opportunity.

[0252] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the first transmission opportunity and the second transmission opportunity.

[0253] As an embodiment, in addition to the first transmission opportunity and the second transmission opportunity, the first node also obtains channel measurement for calculating the first CSI based on other transmission opportunities of the first RS resource and the second RS resource.

[0254] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on only the first transmission opportunity among the first transmission opportunity and the second transmission opportunity.

[0255] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on only the second transmission opportunity among the first transmission opportunity and the second transmission opportunity.

[0256] As an embodiment, the first node obtains channel measurements for calculating the first CSI only based on transmission opportunities no earlier than the first time slot.

[0257] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on transmission opportunities of the first RS resource and the second RS resource that are no earlier than the first time slot.

[0258] As an embodiment, the benefits of the above method include: ensuring that the RS used for channel measurement for channel prediction or CSI reporting of medium / high speed UEs have the same quasi-co-location relationship or TCI state, ensuring the accuracy of channel prediction or CSI reporting of medium / high speed UEs.

[0259] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on transmission opportunities within a measurement time window; the measurement time window includes at least one time slot, and the measurement time window is configurable.

[0260] As an embodiment, the benefits of the above method include: flexible configuration to support UEs with different speeds.

[0261] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on transmission opportunities of the first RS resource and the second RS resource that are within the measurement time window.

[0262] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on transmission opportunities within the measurement time window and not earlier than the first time slot.

[0263] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on transmission opportunities of the first RS resource and the second RS resource that are within the measurement time window and no earlier than the first time slot.

[0264] As an embodiment, the first transmission opportunity and the second transmission opportunity are both within the measurement time window.

[0265] As an embodiment, the length of the measurement time window is configurable.

[0266] As an embodiment, the position of the measurement time window in the time domain is configurable.

[0267] As an embodiment, the length of the measurement time window is configured by RRC signaling.

[0268] As an embodiment, the length of the measurement time window is configured by the first reporting configuration.

[0269] As an embodiment, the position of the measurement time window in the time domain depends on the second signaling.

[0270] As an embodiment, the position of the measurement time window in the time domain depends on the time domain resources allocated to the first CSI.

[0271] As an embodiment, the measurement time window is no later than the time domain resources allocated to the first CSI.

[0272] As an embodiment, the CSI reference resource (referenceresource) in the measurement time window is no later than the first CSI.

[0273] As an embodiment, the latest symbol in the measurement time window is no later than the time domain resources allocated to the first CSI.

[0274] As an embodiment, the latest symbol in the measurement time window is no later than the earliest symbol of the CSI reference resource of the first CSI.

[0275] As an embodiment, the measurement time window is earlier than the time domain resources allocated to the first CSI.

[0276] As an embodiment, the CSI reference resource in the measurement time window is earlier than the first CSI.

[0277] As an embodiment, the latest symbol in the measurement time window is earlier than the time domain resources allocated to the first CSI.

[0278] As an embodiment, the latest symbol in the measurement time window is earlier than the earliest symbol of the CSI reference resource of the first CSI.

[0279] As an embodiment, the first transmission occasion and the second transmission occasion are orthogonal to each other in the time domain.

[0280] As an embodiment, the first transmission opportunity is a transmission opportunity of the first RS resource triggered by the second signaling.

[0281] As an embodiment, the second transmission opportunity is a transmission opportunity of the second RS resource triggered by the second signaling.

[0282] As an embodiment, the first transmission opportunity is the most recent transmission opportunity of the first RS resource that is no later than the time domain resource allocated to the first CSI, and the second transmission opportunity is the most recent transmission opportunity of the second RS resource that is no later than the time domain resource allocated to the first CSI.

[0283] As an embodiment, the first transmission opportunity is the most recent transmission opportunity of the first RS resource that is no later than a CSI reference resource of the first CSI, and the second transmission opportunity is the most recent transmission opportunity of the second RS resource that is no later than a CSI reference resource of the first CSI.

[0284] As an embodiment, the definition of the CSI reference resource refers to 3GPP TS38.214.

[0285] As an embodiment, the CSI reference resource includes one or more consecutive symbols in the time domain.

[0286] As an embodiment, the CSI reference resource includes a time slot in the time domain.

[0287] As an embodiment, the CSI reference resource includes at least one sub-band in the frequency domain.

[0288] As an embodiment, the CSI reference resources include a group of downlink physical resource blocks.

[0289] As an embodiment, the frequency domain resources related to (relate to) the first CSI are used to determine the frequency domain resources occupied by the CSI reference resources of the first CSI.

[0290] As an embodiment, the CSI reference resource of the first CSI is defined in the frequency domain as a group of downlink RBs corresponding to a frequency band involved in the first CSI.

[0291] As an embodiment, the CSI reference resource of the first CSI is defined by time slot (m-first reference offset-second reference offset) in the time domain, and the first CSI is allocated time slot m1; the m1 is used to determine the m, and the first reference offset and the second reference offset are integers respectively.

[0292] As a sub-embodiment of the above embodiment, downlink subcarrier spacing configuration and uplink subcarrier spacing configuration are used to determine the m.

[0293] As a sub-embodiment of the above embodiment, m is equal to the product of m1 and the second ratio, rounded down and added to a third reference offset; the third reference offset is an integer; the downlink subcarrier spacing configuration and the uplink subcarrier spacing configuration are used to determine the second ratio.

[0294] As a reference embodiment of the above sub-embodiment, a higher-layer parameter "ca-SlotOffset" is used to determine the third reference offset.

[0295] As a reference embodiment of the above sub-embodiment, the downlink subcarrier spacing configuration is used to determine the third reference offset.

[0296] As a sub-embodiment of the above embodiment, the first reference offset is related to the downlink subcarrier spacing configuration.

[0297] As a sub-embodiment of the above embodiment, the first reference offset enables the CSI reference resource of the first CSI and the CSI request corresponding to the first CSI to be in the same valid downlink time slot.

[0298] As a sub-embodiment of the above embodiment, the first reference offset is a minimum value greater than or equal to a first threshold and which makes the time slot (m-the first reference offset) correspond to a valid downlink time slot; the first threshold is an integer.

[0299] As a reference embodiment of the above sub-embodiment, the first threshold is related to the downlink subcarrier spacing configuration.

[0300] As a reference embodiment of the above sub-embodiment, the first threshold is related to a delay requirement.

[0301] As a sub-embodiment of the above embodiment, the second reference offset is equal to 0.

[0302] As a sub-embodiment of the above embodiment, the second reference offset is not equal to 0.

[0303] As a sub-embodiment of the above embodiment, a higher layer parameter "CellSpecificKoffset" is used to determine the second reference offset.

[0304] As a sub-embodiment of the above embodiment, a Differential KoffsetMAC CE command is used to determine the second reference offset.

[0305] As a sub-embodiment of the above embodiment, downlink subcarrier spacing configuration is used to determine the second reference offset.

[0306] As an embodiment, the downlink subcarrier spacing configuration is the subcarrier spacing configuration of the first RS resource.

[0307] As an embodiment, the uplink subcarrier spacing configuration is the subcarrier spacing configuration of the first CSI.

[0308] As an embodiment, a time slot is called a valid downlink time slot if the time slot includes at least one DL or flexible symbol configured by higher layer signaling, and the time slot does not fall into a measurement gap configured by the first node.

[0309] As an embodiment, the first transmission opportunity includes one or more symbols, and the second transmission opportunity includes one or more symbols.

[0310] As an embodiment, the first transmission opportunity includes one or more consecutive symbols, and the second transmission opportunity includes one or more consecutive symbols.

[0311] As an embodiment, the first transmission opportunity belongs to a time slot, and the second transmission opportunity belongs to a time slot.

[0312] As an embodiment, the first transmission opportunity and the second transmission opportunity belong to different time slots respectively.

[0313] As an embodiment, the first transmission opportunity is earlier than the second transmission opportunity.

[0314] As an embodiment, the number of symbols included in the first transmission opportunity is equal to the number of symbols included in the second transmission opportunity.

[0315] As an embodiment, the starting symbol of the second transmission opportunity is not earlier than the starting symbol of the first time slot.

[0316] As an embodiment, the symbol refers to: OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0317] As an embodiment, the symbol refers to: a symbol obtained after the output of a transform precoder (transformprecoding) undergoes OFDM symbol generation (Generation).

[0318] As an embodiment, the first transmission opportunity and the second transmission opportunity depend on the second signaling.

[0319] As an embodiment, the time domain resources occupied by the first transmission opportunity and the time domain resources occupied by the second transmission opportunity depend on the second signaling.

[0320] As an embodiment, the second signaling is used to determine the first transmission opportunity and the second transmission opportunity.

[0321] As an embodiment, the second signaling is used to determine the time domain resources occupied by the first transmission opportunity and the time domain resources occupied by the second transmission opportunity.

[0322] As an embodiment, the second signaling is transmitted in slot n, and the first transmission opportunity belongs to slot (n+first offset); the first offset is a non-negative integer, and the first offset is configurable or fixed.

[0323] As an embodiment, the second signaling is transmitted in slot n, the first transmission opportunity belongs to time slot (n+first offset), and the second transmission opportunity belongs to time slot (n+the first offset+second offset); the first offset is a non-negative integer, and the second offset is a positive integer; the first offset is configurable or fixed, and the second offset is configurable.

[0324] As an embodiment, the benefits of the above method include: simplifying signaling design and reducing signaling overhead.

[0325] As an embodiment, n is a non-negative integer.

[0326] As an embodiment, n is a positive integer.

[0327] As an embodiment, the n is not greater than N slot , the N slot is the number of time slots per subframe.

[0328] As an embodiment, the n is not greater than N slot , the N slot is the number of time slots per frame.

[0329] As an embodiment, the first offset is configured by a higher layer parameter.

[0330] As an embodiment, the first offset is configured by RRC signaling.

[0331] As an embodiment, the first offset is configured by the base station to the first node.

[0332] As an embodiment, the first offset is fixed.

[0333] As an embodiment, the first offset is fixed to 0.

[0334] As an embodiment, the higher layer parameter for configuring the first offset includes a higher layer parameter including 'aperiodicTriggeringOffset' in its name.

[0335] As an embodiment, the higher layer parameter for configuring the first offset includes a higher layer parameter including 'ca-SlotOffset' in its name.

[0336] As an embodiment, the second offset is a higher layer parameter configuration.

[0337] As an embodiment, the second offset is an RRC signaling configuration.

[0338] As an embodiment, the second offset is configured by the base station to the first node.

[0339] As an embodiment, the second offset is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0340] As an embodiment, the second offset is configured by NZP-CSI-RS-ResourceIE that configures the second RS resource.

[0341] As an embodiment, (the second offset - 1) is an RRC signaling configuration.

[0342] As an embodiment, (the second offset-1) is configured by the base station to the first node.

[0343] As an embodiment, (the second offset - 1) is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0344] As an embodiment, (the second offset - 1) is configured by the NZP-CSI-RS-Resource IE that configures the second RS resource.

[0345] As an embodiment, the second signaling is transmitted in slot n, and the second transmission opportunity belongs to slot (n+third offset); the third offset is a non-negative integer, and the third offset is configurable.

[0346] As an embodiment, the third offset is a positive integer.

[0347] As an embodiment, the third offset is configured by RRC signaling.

[0348] As an embodiment, the first TCI state takes effect from the first time slot.

[0349] As an embodiment, the first TCI state is applied starting from the first time slot.

[0350] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: the sequence relationship between the first time slot and the first transmission opportunity in the time domain.

[0351] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: whether the first transmission opportunity is earlier than the first time slot.

[0352] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: whether the starting symbol of the first transmission opportunity is earlier than the starting symbol of the first time slot.

[0353] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: the sequence relationship between the first time slot and the time slot to which the first transmission opportunity belongs in the time domain.

[0354] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: whether the time slot to which the first transmission opportunity belongs is earlier than the first time slot.

[0355] As an embodiment, the relationship between the first time slot and the first transmission opportunity in the time domain refers to: whether the starting symbol of the time slot to which the first transmission opportunity belongs is earlier than the starting symbol of the first time slot.

[0356] As an embodiment, the first transmission opportunity being earlier than the first time slot means that: a starting symbol of the first transmission opportunity is earlier than a starting symbol of the first time slot.

[0357] As an embodiment, the first transmission opportunity being earlier than the first time slot means that: the time slot to which the first transmission opportunity belongs is earlier than the first time slot.

[0358] As an embodiment, the first transmission opportunity being earlier than the first time slot means that: the starting symbol of the time slot to which the first transmission opportunity belongs is earlier than the starting symbol of the first time slot.

[0359] As an embodiment, the first transmission opportunity being no earlier than the first time slot means that: the starting symbol of the first transmission opportunity is no earlier than the starting symbol of the first time slot.

[0360] As an embodiment, the first transmission opportunity being no earlier than the first time slot means that: the time slot to which the first transmission opportunity belongs is no earlier than the first time slot.

[0361] As an embodiment, the first transmission opportunity being no earlier than the first time slot means that: the starting symbol of the time slot to which the first transmission opportunity belongs is no earlier than the starting symbol of the first time slot.

[0362] Example 2

[0363] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0364] Attached Figure 2The network architecture 200 of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems is illustrated. The network architecture 200 of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System) 200. The 5GNR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. 5GS / EPS 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, 5GS / EPS200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. NG-RAN202 includes NR (New Radio) Node B (gNB) 203 and other gNBs204. gNB203 provides user and control plane protocol terminations toward UE201. gNB203 can be connected to other gNBs204 via an Xn interface (e.g., backhaul). gNB203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmit receive point), or some other suitable term. gNB203 provides an access point to 5GC / EPC210 for UE201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212 and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is a control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which is itself connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and Packet switching services.

[0365] As an embodiment, the UE201 corresponds to the first node in the present application.

[0366] As an embodiment, the gNB203 corresponds to the second node in this application.

[0367] As an embodiment, the wireless link between the UE201 and the gNB203 includes a cellular network link.

[0368] As an embodiment, the sender of the first signaling includes the gNB203.

[0369] As an embodiment, the recipient of the first signaling includes the UE201.

[0370] As an embodiment, the sender of the second signaling includes the gNB203.

[0371] As an embodiment, the recipient of the second signaling includes the UE201.

[0372] As an embodiment, the UE 201 supports the unifiedTCI architecture.

[0373] As an embodiment, the UE 201 supports channel prediction or CSI reporting for medium / high speed mobile UEs.

[0374] As an embodiment, the UE201 supports multiple TRP / panel transmission.

[0375] As an embodiment, the UE 201 supports a more flexible duplex mode or a full-duplex mode.

[0376] Example 3

[0377] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0378] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 for a first communication node device (UE, gNB or RSU in V2X) and a second communication node device (gNB, UE or RSU in V2X), or between two UEs is shown in three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture used for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0379] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0380] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0381] As an embodiment, the first signaling is generated in the PHY301 or the PHY351.

[0382] As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0383] As an embodiment, the second signaling is generated in the PHY301 or the PHY351.

[0384] As an embodiment, the second signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0385] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0386] Example 4

[0387] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0388] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0389] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0390] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0391] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using confirmation (ACK) and / or negative confirmation (NACK) protocols to support HARQ operations.

[0392] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0393] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0394] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 device receives at least the first signaling and the second signaling. The first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers a first CSI, the first CSI depends on a first reporting configuration, the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, the first transmission opportunity is a transmission opportunity of the first RS resource, the second transmission opportunity is a transmission opportunity of the second RS resource, and the first transmission opportunity and the second transmission opportunity are mutually orthogonal; the first time slot depends on the first signaling; the second transmission opportunity is not earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0395] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving the first signaling and the second signaling.

[0396] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 device sends at least the first signaling and the second signaling. The first signaling indicates a first TCI state, the first signaling is a DCI; the second signaling triggers a first CSI, the first CSI depends on a first reporting configuration, the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, the first transmission opportunity is a transmission opportunity of the first RS resource, the second transmission opportunity is a transmission opportunity of the second RS resource, the first transmission opportunity and the second transmission opportunity are mutually orthogonal; the first time slot depends on the first signaling; the second transmission opportunity is not earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0397] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending the first signaling and the second signaling.

[0398] As an embodiment, the first node in the present application includes the second communication device 450.

[0399] As an embodiment, the second node in the present application includes the first communication device 410.

[0400] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the first signaling.

[0401] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the second signaling; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the second signaling.

[0402] As an embodiment, at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive the first CSI; and at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send the first CSI.

[0403] Example 5

[0404] Embodiment 5 illustrates a flow chart of transmission according to an embodiment of the present application; Figure 5 As shown in the attached Figure 5 In the embodiment, the second node U1 and the first node U2 are communication nodes transmitted via the air interface. Figure 5 In the process, the steps in box F51 to box F59 are respectively optional.

[0405] For the second node U1, in step S5101, RS is sent in the third RS resource; in step S5102, third signaling is sent; in step S511, first signaling is sent; in step S5103, HARQ-ACK is received in the first channel; in step S512, second signaling is sent; in step S5104, RS is sent in the first transmission opportunity and the second transmission opportunity respectively; in step S5105, RS is sent in K transmission opportunities respectively; in step S5106, a signal is sent in the first CSI resource; and in step S5107, the first CSI is received.

[0406] For the first node U2, in step S5201, RS is received in the third RS resource; in step S5202, the third signaling is received; in step S521, the first signaling is received; in step S5203, HARQ-ACK is sent in the first channel; in step S522, the second signaling is received; in step S5204, RS is received in the first transmission opportunity and the second transmission opportunity respectively; in step S5205, RS is received in K transmission opportunities respectively; in step S5206, interference measurement is performed in the first CSI resource; in step S5207, CSI is updated for the first CSI; in step S5208, the first CSI is sent.

[0407] In Example 5, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers a first CSI, and the first CSI depends on a first reporting configuration, and the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, and the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and the first transmission opportunity and the second transmission opportunity are orthogonal to each other; the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0408] As an embodiment, the first node U2 is the first node in this application.

[0409] As an embodiment, the second node U1 is the second node in this application.

[0410] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a base station device and a user equipment.

[0411] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a relay node device and a user equipment.

[0412] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between user equipments.

[0413] As an embodiment, the second node U1 is a base station maintaining a service cell of the first node U2.

[0414] As an embodiment, the first signaling is transmitted in PDCCH.

[0415] As an embodiment, the second signaling is transmitted in PDCCH.

[0416] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node sends the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0417] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node updates the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0418] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that: the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0419] As an embodiment, the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0420] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[0421] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include first CSI resources.

[0422] As an example, Figure 5 The steps in box F54 in the above exist; the method used in the first node of wireless communication includes:

[0423] An RS is received in the first transmission opportunity, and an RS is received in the second transmission opportunity.

[0424] As an example, Figure 5 The steps in box F54 in the above exist; the method used in the second node of wireless communication includes:

[0425] The RS is sent in the first transmission opportunity, and the RS is sent in the second transmission opportunity.

[0426] As an embodiment, receiving RS in the first transmission opportunity means: receiving RS in the first transmission opportunity in the first RS resource; receiving RS in the second transmission opportunity means: receiving RS in the second transmission opportunity in the second RS resource;

[0427] As an embodiment, the first node receives RS in the first transmission opportunity and the second transmission opportunity with the same TCI state or the same quasi co-location relationship.

[0428] As an embodiment, whether the first node uses the first TCI state to receive RS in the first transmission opportunity depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0429] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the first node receives the RS in the first transmission opportunity using the first TCI state.

[0430] As an embodiment, the first node receives the RS in the first transmission opportunity using the first TCI state only when the first transmission opportunity is not earlier than the first time slot.

[0431] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the first node receives the RS in the first transmission opportunity using a second TCI state, where the second TCI state is different from the first TCI state.

[0432] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the RS and the third RS resource received in the first transmission opportunity are quasi co-located, and the third RS resource is a CSI-RS resource or a SS / PBCH (Synchronisation Signal / Physical Broadcast Channel) Block resource.

[0433] As a sub-embodiment of the above embodiment, the RS received in the first transmission opportunity and the RS in the third RS resource are quasi-co-located and the corresponding quasi-co-location type includes QCL-TypeD.

[0434] As an embodiment, whether the first node uses the first TCI state to receive RS in the second transmission opportunity depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0435] As an embodiment, the benefits of the above method include: ensuring that the RS in the first transmission opportunity and the RS in the second transmission opportunity have the same TCI state, ensuring the accuracy of channel measurement, and improving the accuracy of channel prediction or CSI for medium / high speed UEs.

[0436] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the first node receives the RS in the second transmission opportunity using the first TCI state.

[0437] As an embodiment, the first node receives the RS in the second transmission opportunity using the first TCI state only when the first transmission opportunity is not earlier than the first time slot.

[0438] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the first node receives the RS in the second transmission opportunity using a second TCI state, where the second TCI state is different from the first TCI state.

[0439] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the RS and the third RS resource received in the second transmission opportunity are quasi-co-located, and the third RS resource is a CSI-RS resource or a SS / PBCH Block resource.

[0440] As a sub-embodiment of the above embodiment, the RS received in the second transmission opportunity and the RS in the third RS resource are quasi-co-located, and the corresponding quasi-co-location type includes QCL-TypeD.

[0441] As an embodiment, the first node receives RS in the second transmission opportunity using the first TCI state.

[0442] As an embodiment, regardless of whether the first transmission opportunity is earlier than the first time slot, the first node receives the RS in the second transmission opportunity using the first TCI state.

[0443] As an embodiment, the advantages of the above method include: small changes to the standard and good backward compatibility.

[0444] As an embodiment, the third signaling indicates the second TCI state, the third signaling is a DCI, and the first node receives the third signaling before receiving the first signaling.

[0445] As an embodiment, the third signaling is DCI format 1_1 or DCI format 1_2.

[0446] As an embodiment, the CRC of the third signaling is scrambled by the C-RNTI.

[0447] As an example, Figure 5 The steps in box F52 in the above exist; the method used in the first node of wireless communication includes:

[0448] The third signaling is received before the first signaling is received.

[0449] As an example, Figure 5 The steps in box F52 in the above exist; the method used in the second node of wireless communication includes:

[0450] The third signaling is sent before the first signaling is sent.

[0451] As an embodiment, the third RS resource is identified during the access process.

[0452] As an embodiment, the access procedure is an initial access procedure.

[0453] As an embodiment, the access procedure is a random access procedure.

[0454] As an embodiment, the access procedure is a random access procedure initiated by a reconfiguration of a synchronization procedure.

[0455] As an embodiment, the third RS resource is randomly selected by the first node.

[0456] As an embodiment, the third RS resource is randomly selected by the first node with the same probability.

[0457] As an embodiment, the third RS resource is a CSI-RS resource or a SS / PBCH Block resource having a maximum RSRP (Reference signal received power).

[0458] As an embodiment, the selection of the third RS resource is implementation-dependent.

[0459] As an example, Figure 5 The steps in box F51 in the above exist; the method used in the first node of wireless communication includes:

[0460] An RS is received in the third RS resource.

[0461] As an example, Figure 5 The steps in box F51 in the above exist; the method used in the second node of wireless communication includes:

[0462] The RS is sent in the third RS resource.

[0463] As an example, Figure 5 The steps in box F55 in the above exist; the method used in the first node of wireless communication includes:

[0464] RSs are received in the K transmission opportunities respectively.

[0465] As an example, Figure 5 The steps in box F55 in the above exist; the method used in the second node of wireless communication includes:

[0466] RSs are sent in the K transmission opportunities respectively.

[0467] As an embodiment, the second signaling triggers the first node to receive RS in the K transmission opportunities respectively.

[0468] As an embodiment, the second signaling triggers the first node to receive RS in each of the K RS resources.

[0469] As an embodiment, the first node receives RSs in the K transmission opportunities with the same TCI state or quasi co-location relationship.

[0470] As an embodiment, for any transmission opportunity among the K transmission opportunities, if this transmission opportunity is earlier than the first time slot, the first node does not use the first TCI state to receive RS in this transmission opportunity; if this transmission opportunity is not earlier than the first time slot, the first node uses the first TCI state to receive RS in this transmission opportunity.

[0471] As an embodiment, for any transmission opportunity among the K transmission opportunities, the first node receives RS in this transmission opportunity using the first TCI state only if this transmission opportunity is not earlier than the first time slot.

[0472] As an embodiment, the benefits of the above method include: good backward compatibility.

[0473] As an embodiment, for any transmission opportunity among the K transmission opportunities, if this transmission opportunity is earlier than the first time slot, the first node uses the second TCI state to receive RS in this transmission opportunity, or the RS received in this transmission opportunity and the third RS resource are quasi-co-located.

[0474] As an example, Figure 5 The steps in boxes F54 and F55 cannot exist at the same time.

[0475] As an embodiment, using one TCI state to receive an RS in one transmission opportunity means that: the one TCI state includes parameters for configuring a quasi-co-location relationship between the RS and one or two downlink reference signals in the one transmission opportunity.

[0476] As an embodiment, using one TCI state to receive an RS in one transmission opportunity means: (assuming) the RS in the one transmission opportunity and each downlink reference signal indicated by the one TCI state are quasi-co-located.

[0477] As an embodiment, using one TCI state to receive an RS in one transmission opportunity means: (assuming) a port of the RS in the one transmission opportunity and a port of each downlink reference signal indicated by the one TCI state are quasi-co-located.

[0478] As an embodiment, for each downlink reference signal indicated by the first TCI state, the QCL type corresponding to the RS (or the port of the RS) and the downlink reference signal (or the port of the downlink reference signal) in the one transmission opportunity is the QCL type indicated by the one TCI state for the downlink reference signal.

[0479] As an embodiment, using a TCI state to receive an RS in a transmission opportunity means that: for each downlink reference signal indicated by the first TCI state, the large-scale characteristics of the channel on which the RS in the one transmission opportunity is transmitted can be inferred from the channel on which this downlink reference signal is transmitted.

[0480] As an embodiment, the large-scale characteristics include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay or spatial Rx parameters.

[0481] As an embodiment, the one TCI state mentioned above is any one of the first TCI state or the second TCI state.

[0482] As an embodiment, the one transmission opportunity mentioned above is any one of the first transmission opportunity and the second transmission opportunity.

[0483] As an embodiment, the one transmission opportunity mentioned above is any one of the K transmission opportunities.

[0484] As an example, Figure 5 The steps in box F53 in the above exist; the method used in the first node for wireless communication includes:

[0485] Sending HARQ-ACK (Hybrid automatic repeat quest acknowledgment) in the first channel;

[0486] The first time slot depends on the time domain resources occupied by the first channel, and the time domain resources occupied by the first channel depends on the first signaling.

[0487] As an example, Figure 5 The steps in box F53 in the above exist; the method used in the second node of wireless communication includes:

[0488] A HARQ-ACK is received in the first channel.

[0489] As an embodiment, the HARQ-ACK sent in the first channel is a HARQ-ACK for the first signaling.

[0490] As an embodiment, the HARQ-ACK sent in the first channel indicates whether the first signaling is correctly received.

[0491] As an embodiment, the HARQ-ACK sent in the first channel indicates that the first signaling is correctly received.

[0492] As an embodiment, the first signaling schedules a first PDSCH, and the HARQ-ACK sent in the first channel is a HARQ-ACK for the first PDSCH.

[0493] As an embodiment, the HARQ-ACK sent in the first channel indicates whether the TB (Transport Block) carried by the first PDSCH is correctly received.

[0494] As an embodiment, the HARQ-ACK sent in the first channel indicates that the TB carried by the first PDSCH is correctly received.

[0495] As an embodiment, the HARQ-ACK refers to positive HARQ-ACK.

[0496] As an embodiment, the HARQ-ACK refers to ACK (ACKnowledgement, confirmation).

[0497] As an embodiment, the first time slot is the first time slot after at least the fourth offset symbol after the last symbol of the first channel; the fourth offset is a non-negative integer.

[0498] As an embodiment, the fourth offset is configured by a higher layer parameter.

[0499] As an embodiment, the fourth offset is configured by RRC signaling.

[0500] As an embodiment, the name of the higher layer parameter configuring the fourth offset includes 'beamAppTime'.

[0501] As an embodiment, the fourth offset is configured by a higher layer parameter 'beamAppTime'.

[0502] As an embodiment, the first channel is a physical channel.

[0503] As an embodiment, the first channel is PUCCH.

[0504] As an embodiment, the first channel is PUSCH.

[0505] As an embodiment, the first channel is transmitted in time slot (s+fifth offset), time slot s depends on the time domain resources occupied by the first signaling, the fifth offset is configurable, and the fifth offset is a non-negative integer.

[0506] As an embodiment, the time slot s is the time slot to which the last symbol of the PDCCH carrying the first signaling belongs.

[0507] As an embodiment, the time slot s is the last uplink time slot used for PUCCH transmission that overlaps with the reception of the PDCCH carrying the first signaling.

[0508] As an embodiment, the time slot s is the last uplink time slot used for PUCCH transmission that overlaps with the downlink time slot occupied by the reception of the PDCCH carrying the first signaling.

[0509] As an embodiment, the time slot s is the time slot to which the last symbol occupied by the first PDSCH belongs.

[0510] As an embodiment, the time slot s is the last uplink time slot used for PUCCH transmission that overlaps with the reception of the first PDSCH.

[0511] As an embodiment, the time slot s is the last uplink time slot used for PUCCH transmission that overlaps with the downlink time slot occupied by the reception of the first PDSCH.

[0512] As an embodiment, the first signaling indicates the time domain resources occupied by the first PDSCH.

[0513] As an embodiment, the first signaling indicates an offset between a time slot occupied by the first PDSCH and a time slot occupied by the first signaling.

[0514] As an embodiment, the fifth offset is configured by higher layer signaling.

[0515] As an embodiment, the first signaling indicates the fifth offset.

[0516] As an embodiment, the first signaling indicates the fifth offset from a plurality of candidate offsets, and the plurality of candidate offsets are configured by higher layer signaling.

[0517] As an example, Figure 5 The steps in box F57 in the above exist; the method used in the first node of wireless communication includes:

[0518] Perform interference measurement in the first CSI resource.

[0519] As an example, Figure 5 The steps in box F56 in the above exist; the method used in the second node of wireless communication includes:

[0520] Send a signal in the first CSI resource.

[0521] As an example, Figure 5The steps in block F57 in the appendix exist. Figure 5 The step in box F56 does not exist.

[0522] As an example, Figure 5 Both the steps in box F57 and box F56 exist.

[0523] As an example, Figure 5 The steps in box F58 in the above exist; the method used in the first node for wireless communication includes:

[0524] Update the CSI for the first CSI.

[0525] As an embodiment, the first node obtains channel measurement for updating CSI for the first CSI based on at least one of the first transmission opportunity and the second transmission opportunity.

[0526] As an embodiment, the first node obtains channel measurement for updating CSI for the first CSI based on a transmission opportunity no earlier than the first time slot among the first transmission opportunity and the second transmission opportunity.

[0527] As an embodiment, the first node obtains channel measurement for updating CSI for the first CSI based on a transmission opportunity of the first RS resource and the second RS resource no earlier than the first time slot.

[0528] As an embodiment, the first node obtains interference measurement for updating CSI for the first CSI based on the first CSI resource.

[0529] As an example, Figure 5 The step in box F58 in does not exist; the first node does not update the CSI for the first CSI.

[0530] As an example, Figure 5 The steps in box F59 in the above exist; the method used in the first node of wireless communication includes:

[0531] The first CSI is sent.

[0532] As an embodiment, the first CSI is transmitted on the PUSCH.

[0533] As an embodiment, the first CSI is transmitted on PUCCH.

[0534] As an embodiment, the second signaling indicates the time domain resources occupied by the first CSI.

[0535] As an embodiment, the time-frequency resources occupied by the first CSI are time domain resources allocated to the first CSI.

[0536] As an embodiment, the second signaling indicates the time-frequency resources occupied by the first CSI.

[0537] As an embodiment, the time-frequency resources occupied by the first CSI are the time-frequency resources allocated to the first CSI.

[0538] As an example, Figure 5 The step in box F59 does not exist; the above-mentioned method in the first node used for wireless communication includes: giving up sending the first CSI.

[0539] Generally speaking, how to perform channel measurement and / or interference measurement and how to calculate CSI are determined by the equipment vendor. Some non-limiting implementation methods are described below:

[0540] As an embodiment, the first node obtains channel information by measuring the RS transmitted in the first RS resource and the second RS resource, and the channel information includes but is not limited to a channel parameter matrix H w ,w=1,…,W,correlation, received power, RSRP (Reference signal received power) or phase; wherein W is the number of subbands, and H w The dimension is R×T, where T and R are the number of transmitting antenna ports and the number of receiving antennas, respectively.

[0541] As an embodiment, the first node obtains interference information by measuring the signal transmitted in the first CSI resource; the interference information includes but is not limited to one or more of received power, RSRP, or correlation.

[0542] As an embodiment, the first node obtains the first CSI by operating the channel information and interference information, and the operation includes but is not limited to one or more of mathematical operations, matrix operations, matrix decomposition, averaging, filtering, quantization, interpolation or table lookup.

[0543] As an embodiment, the first node uses a precoding matrix V for the channel parameter matrix w ,w=1,…,W, the equivalent channel P after precoding is obtained w ,w=1,…,W,P w =H w ·V w , where V wThe dimension is T×V, where V is the rank or number of layers; the precoding matrix V is determined by, for example but not limited to, matrix operation, matrix decomposition, table lookup, quantization, averaging, filtering or interpolation. w ,w=1,…,W;Using, for example but not limited to, SINR (signal-to-noise and interference ratio), EESM (Exponential Effective SINR Mapping), or RBIR (Received Block mean mutual Information Ratio) criteria and combining interference signal and noise information, calculate P w ,w=1,…,W equivalent channel capacity, and then determine CQI by looking up the equivalent channel capacity. Generally speaking, the direct mapping of CQI value depends on the receiver performance, or hardware-related factors such as modulation mode. The precoding matrix V w ,w=1,…,W is usually reported by the first node through PMI.

[0544] Example 6

[0545] Embodiment 6 illustrates a schematic diagram of a relationship between a first time slot and a first transmission opportunity in the time domain according to an embodiment of the present application for processing the first CSI; Figure 6 In embodiment 6, whether the first node sends the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0546] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the first node gives up sending the first CSI.

[0547] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the first node sends the first CSI.

[0548] As an embodiment, the first node sends the first CSI only when the first transmission opportunity is not earlier than the first time slot.

[0549] As an embodiment, the essence of the above method includes: sending the first CSI only when the first transmission opportunity and the second transmission opportunity have the same TCI state or a quasi-co-location relationship.

[0550] As an embodiment, the benefits of the above method include: avoiding reporting of inaccurate CSI and saving reporting overhead.

[0551] As an embodiment, the benefits of the above method include: ensuring the accuracy of CSI reporting.

[0552] As an embodiment, the benefits of the above method include: avoiding the negative impact on channel prediction or CSI reporting of medium / high speed UEs due to changes in the TCI state or quasi-co-location relationship of RS resources used for channel measurement.

[0553] As an embodiment, the first node sends the first CSI, and the first node obtains channel measurement for calculating the first CSI based on the first transmission opportunity and the second transmission opportunity.

[0554] Example 7

[0555] Embodiment 7 illustrates a schematic diagram of a relationship between a first time slot and a first transmission opportunity in the time domain according to an embodiment of the present application for processing the first CSI; Figure 7 In embodiment 7, whether the first node updates the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0556] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the first node does not update the CSI for the first CSI.

[0557] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the first node is not required to update CSI for the first CSI.

[0558] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the first node updates the CSI for the first CSI.

[0559] As an embodiment, the first node updates the CSI for the first CSI only when the first transmission opportunity is not earlier than the first time slot.

[0560] As an embodiment, the essence of the above method includes: updating the CSI for the first CSI only when the first transmission opportunity and the second transmission opportunity have the same TCI state or a quasi co-location relationship.

[0561] As an embodiment, the benefits of the above method include: ensuring the accuracy of CSI reporting and having good backward compatibility.

[0562] As an embodiment, the benefits of the above method include: avoiding the negative impact on channel prediction or CSI reporting of medium / high speed UEs due to changes in the TCI state or quasi-co-location relationship of RS resources used for channel measurement.

[0563] As an embodiment, updating CSI for / not updating CSI for the first CSI means: updating CSI for / not updating CSI for a CSI report configured for the first report triggered by the second signaling.

[0564] As an embodiment, the first node obtains channel measurement for updating the first CSI based on the first transmission opportunity and the second transmission opportunity.

[0565] Example 8

[0566] Embodiment 8 illustrates a schematic diagram of a relationship between a first time slot and a first transmission opportunity in the time domain according to an embodiment of the present application for processing the first CSI; Figure 8 In embodiment 8, the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0567] As an embodiment, the content of the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0568] As an embodiment, the payload size of the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0569] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the payload size of the first PMI is smaller than the payload size of the first PMI when the first transmission opportunity is not earlier than the first time slot.

[0570] As an embodiment, the reference resource of the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0571] As an embodiment, the time domain resources targeted by the first PMI depend on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0572] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the time domain resource targeted by the first PMI is earlier than the time domain resource targeted by the first PMI when the first transmission opportunity is not earlier than the first time slot.

[0573] As an embodiment, the first node obtains channel measurement for calculating the first PMI based on the first transmission opportunity and the second transmission opportunity.

[0574] As an embodiment, the first node obtains channel measurement for calculating the first PMI based on only the second transmission opportunity among the first transmission opportunity and the second transmission opportunity.

[0575] As an embodiment, the first node obtains channel measurement for calculating the first PMI based on only the first transmission opportunity among the first transmission opportunity and the second transmission opportunity.

[0576] As an embodiment, the first PMI is used for precoding.

[0577] As an embodiment, the first PMI is used to determine at least one precoding matrix.

[0578] As an embodiment, the first PMI carries precoding information.

[0579] As an embodiment, a plurality of vectors and a plurality of coefficients depend on the first PMI, and the plurality of vectors and the plurality of coefficients are used for precoding.

[0580] As an embodiment, the first PMI is used to determine the multiple vectors and the multiple coefficients.

[0581] As an embodiment, the first PMI carries the multiple vectors and the multiple coefficients.

[0582] As an embodiment, the multiple vectors carry precoding information.

[0583] As an embodiment, the multiple vectors are used to determine at least one precoding matrix.

[0584] As an embodiment, the multiple vectors and the multiple coefficients obtain at least one precoding matrix through mathematical operations.

[0585] As an embodiment, the elements in the multiple vectors and the multiple coefficients obtain at least one precoding matrix through mathematical operations.

[0586] As an embodiment, the mathematical operation includes a matrix operation.

[0587] As an embodiment, the mathematical operation includes weighting and combining.

[0588] As an embodiment, the mathematical operation includes a linear operation.

[0589] As an embodiment, the mathematical operation includes a non-linear operation.

[0590] As an embodiment, the multiple vectors are used to determine at least one matrix, the multiple coefficients are used to determine at least one coefficient matrix, and the at least one matrix and the at least one coefficient matrix obtain at least one precoding matrix through matrix operations.

[0591] As an embodiment, the multiple vectors include at least one spatial basis vector.

[0592] As an embodiment, the multiple vectors include at least one frequency domain basis vector.

[0593] As an embodiment, the multiple vectors include at least one Doppler domain basis vector.

[0594] As an embodiment, the Doppler domain basis vector refers to the time domain basis vector.

[0595] As an embodiment, the multiple vectors include at least one spatial domain basis vector and at least one frequency domain basis vector.

[0596] As an embodiment, the multiple vectors include at least one spatial domain basis vector, at least one frequency domain basis vector and at least one Doppler domain basis vector.

[0597] As an embodiment, each of the multiple vectors is a column of a DFT (Discrete Fourier Transform) matrix.

[0598] As an embodiment, each coefficient of the plurality of coefficients is a complex number.

[0599] As an embodiment, the amplitude and phase of at least one coefficient among the multiple coefficients are carried by different parts of the first PMI.

[0600] As an embodiment, the first PMI includes i 1,1 and i 1,2 Information in.

[0601] As an embodiment, the first PMI includes {i 1,3,l ,l=1,…first rank number} and {i 1,4,l ,l=1,…first rank number}, where the first rank number is a number of layers.

[0602] As an embodiment, the first PMI includes {i 2,1,l ,l=1,…first rank number} and {i 2,2,l ,l=1,…first rank number}, where the first rank number is a number of layers.

[0603] As an embodiment, the i 1,1 , the i 1,2 For the definition, see 3GPP TS38.214.

[0604] As an embodiment, the i 1,3,l , the i 1,4,l , the i 2,1,l and the i 2,2,l For the definition, see 3GPP TS 38.214.

[0605] As an embodiment, at least part of the plurality of vectors is represented by i 1,1 and i 1,2 Sure.

[0606] As an embodiment, some or all of the multiple coefficients are represented by {i 1,3,l ,l=1,…first rank number},{i 1,4,l ,l=1,…first rank number},{i 2,1,l ,l=1,…first rank number} or [i 2,2,l ,l=1,…first rank number} or some combination thereof.

[0607] As an embodiment, the first PMI includes i 1,5 ,{i 1,6,l ,l=1,…first rank number},{i 1,7,l ,l=1,…first rank number} and {i 1,8,l ,l=1,…the first rank number}.

[0608] As an embodiment, the first PMI includes {i 2,3,l ,l=1,…first rank number},{i 2,4 ,l,l=1,…first rank number} and {i 2,5,l ,l=1,…the first rank number}.

[0609] As an embodiment, the i 1,5 , the i 1,6,l , the i 1,7,l , the i 1,8,l , the i 2,3,l , the i 2,4,l and the i 2,5,l For the definition of , see 3GPP TS38.214.

[0610] As an embodiment, all or part of the plurality of vectors are represented by i 1,5 and {i 1,6,l ,l=1,…the first rank number} is determined.

[0611] As an embodiment, some or all of the multiple coefficients are represented by {i 1,7,l ,l=1,…first rank number},{i 1,8,l ,l=1,…first rank number},{i 2,3,l ,l=1,…first rank number},{i 2,4,l ,l=1,…first rank number} or {i 2,5,l ,l=1,…first rank number} or some combination thereof.

[0612] As an embodiment, the first node obtains the channel measurement for calculating the first CSI based on the second transmission opportunity; whether the first node obtains the channel measurement for calculating the first CSI based on the first transmission opportunity depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0613] As a sub-embodiment of the above embodiment, when the first transmission opportunity is earlier than the first time slot, the first node obtains channel measurement for calculating the first CSI based on only the second transmission opportunity among the first transmission opportunity and the second transmission opportunity.

[0614] As a sub-embodiment of the above embodiment, when the first transmission opportunity is not earlier than the first time slot, the first node obtains channel measurement for calculating the first CSI based on the first transmission opportunity.

[0615] Example 9

[0616] Embodiment 9 illustrates a schematic diagram of a first PMI according to an embodiment of the present application; Fig. 9 In Embodiment 9, at least one matrix set depends on the first PMI, and any matrix set in the at least one matrix set includes one or more matrices.

[0617] As an embodiment, the first PMI is used to determine the at least one matrix set.

[0618] As an embodiment, the first PMI includes the at least one matrix set.

[0619] As an embodiment, the first PMI indicates the at least one matrix set.

[0620] As an embodiment, the first PMI includes information used to calculate the at least one matrix set.

[0621] As an embodiment, the target receiver of the first CSI can obtain the at least one matrix set from the first PMI.

[0622] As an embodiment, the target receiver of the first CSI can unambiguously obtain the at least one matrix set from the first PMI.

[0623] As an embodiment, the target receiver of the first CSI and the first node can obtain the same at least one matrix set from the first PMI.

[0624] As an embodiment, a plurality of vectors and a plurality of coefficients depend on the first PMI, and the at least one matrix set is obtained by performing mathematical operations on part or all of the plurality of vectors and part or all of the plurality of coefficients.

[0625] As an embodiment, a plurality of vectors and a plurality of coefficients depend on the first PMI, and the at least one matrix set is obtained by performing mathematical operations on part or all of the elements in the plurality of vectors and part or all of the plurality of coefficients.

[0626] As an embodiment, the multiple vectors are used to generate at least one matrix, the multiple coefficients are used to generate at least one coefficient matrix, and each matrix in the at least one matrix set is obtained by matrix operations on part or all of the at least one matrix and part or all of the at least one coefficient matrix.

[0627] As an embodiment, the multiple vectors are used to generate at least one spatial basis matrix and at least one frequency domain basis matrix, and the multiple coefficients are used to generate at least one coefficient matrix; each matrix in the at least one matrix set is a spatial basis matrix in the at least one spatial basis matrix, a frequency domain basis matrix in the at least one frequency domain set matrix, and a coefficient matrix in the at least one coefficient matrix are obtained by matrix operations.

[0628] As an embodiment, the multiple vectors are used to generate at least one spatial domain basis matrix, at least one frequency domain basis matrix and at least one Doppler domain basis matrix, and the multiple coefficients are used to generate at least one coefficient matrix; each matrix in the at least one matrix set is a spatial domain basis matrix in the at least one spatial domain basis matrix, a frequency domain basis matrix in the at least one frequency domain basis matrix, a Doppler domain basis matrix in the at least one Doppler domain basis matrix, and a coefficient matrix in the at least one coefficient matrix obtained by matrix operations.

[0629] As an embodiment, the matrix operation includes matrix multiplication.

[0630] As an embodiment, the matrix operation includes matrix addition.

[0631] As an embodiment, the matrix operation includes a dot product.

[0632] As an embodiment, the matrix operation includes array multiplication, that is, multiplying elements at the same position in two matrices of the same dimension.

[0633] As an example, matrix operations include transposition and conjugation.

[0634] As an embodiment, the matrix operation includes a Kronecker product.

[0635] As an embodiment, the first PMI includes at least one information block, the number of information blocks in the at least one information block is equal to the number of matrix sets in the at least one matrix set, and the at least one information block is respectively used to determine the at least one matrix set.

[0636] As an embodiment, the at least one matrix set is generated respectively by the at least one information block.

[0637] As an embodiment, each information block in the at least one information block is used to generate multiple vectors and multiple coefficients, and the multiple vectors and the multiple coefficients generated by each information block in the at least one information block are used to generate a corresponding matrix set through mathematical operations.

[0638] As an embodiment, the at least one matrix set is used for precoding.

[0639] As an embodiment, the at least one matrix set includes only one matrix set.

[0640] As an embodiment, the at least one matrix set includes multiple matrix sets.

[0641] As an embodiment, each matrix set in the at least one matrix set includes only one matrix.

[0642] As an embodiment, each matrix set in the at least one matrix set includes multiple matrices.

[0643] As an embodiment, there is a matrix set in the at least one matrix set that includes only one matrix.

[0644] As an embodiment, the at least one matrix set includes multiple matrices in one matrix set.

[0645] As an embodiment, any two matrix sets in the at least one matrix set include an equal number of matrices.

[0646] As an embodiment, in the at least one matrix set, there are two matrix sets including unequal numbers of matrices.

[0647] As an embodiment, each matrix in the at least one matrix set is used for precoding.

[0648] As an embodiment, each matrix in the at least one matrix set is a precoding matrix.

[0649] As an embodiment, each matrix in the at least one matrix set carries precoding information.

[0650] As an embodiment, any matrix in the at least one matrix set is a precoding matrix for a PRB group.

[0651] As an embodiment, different matrices in any matrix set in the at least one matrix set are precoding matrices for different PRB groups.

[0652] As an embodiment, any matrix in the at least one matrix set is used for precoding for a PRB group.

[0653] As an embodiment, different matrices in any matrix set in the at least one matrix set are used for precoding for different PRB groups.

[0654] As an embodiment, any matrix in the at least one matrix set includes precoding information for a PRB group.

[0655] As an embodiment, different matrices in any matrix set in the at least one matrix set include precoding information for different PRB groups.

[0656] As an embodiment, the one PRB group includes all or part of the PRBs in one subband among several subbands of the first subband.

[0657] As an embodiment, any two matrices in the at least one matrix set have the same number of rows and columns.

[0658] As an embodiment, the number of matrices included in at least one of the at least one matrix sets depends on the number of the first subbands.

[0659] As an embodiment, the number of matrices included in each matrix set in the at least one matrix set depends on the number of the first subbands.

[0660] As an embodiment, there is a matrix set in the at least one matrix set, the number of matrices included of which is not greater than a first parameter multiplied by the first subband number, and the first parameter is configurable.

[0661] As an embodiment, the number of matrices included in each matrix set of the at least one matrix set is not greater than a first parameter multiplied by the first number of subbands, and the first parameter is configurable.

[0662] As an embodiment, there is a matrix set in the at least one matrix set, the number of matrices included in which is equal to the first parameter multiplied by the first subband number.

[0663] As an embodiment, the number of matrices included in each matrix set of the at least one matrix set is equal to the first parameter multiplied by the first subband number.

[0664] As an embodiment, there is a matrix set in the at least one matrix set, the number of matrices included of which is equal to the product of the first parameter and the first subband number, or equal to the product of the first parameter and the first subband number minus 1, or equal to the product of the first parameter and the first subband number minus 2.

[0665] As an embodiment, for any matrix set in the at least one matrix set, the number of matrices included in this matrix set is equal to the product of the first parameter and the first subband number, or equal to the product of the first parameter and the first subband number minus 1, or equal to the product of the first parameter and the first subband number minus 2.

[0666] As an embodiment, the first parameter is a positive integer.

[0667] As an embodiment, the first parameter is equal to 1 or 2.

[0668] As an embodiment, the first parameter is configured by a higher layer parameter.

[0669] As an embodiment, the first parameter is configured by a higher layer parameter whose name includes 'numberOfPMI-SubbandsPerCQI-Subband'.

[0670] As an embodiment, the first parameter is configured by a higher layer parameter 'numberOfPMI-SubbandsPerCQI-Subband'.

[0671] As an embodiment, for any matrix set in the at least one matrix set, any two matrices in the matrix set have the same number of rows and columns.

[0672] As an embodiment, there is a matrix set in the at least one matrix set, the number of rows of each matrix in the matrix set is equal to the first port number, and the first port number is a positive integer.

[0673] As an embodiment, the number of rows of each matrix in the at least one matrix set is equal to the first port number, and the first port number is a positive integer.

[0674] As an embodiment, the first port number is the number of CSI-RS ports.

[0675] As an embodiment, the first port number is the number of CSI-RS ports of the first RS resource.

[0676] As an embodiment, the first number of ports is equal to 2×N1×N2, the N1 and the N2 are positive integers, and the N1 and the N2 are configured by higher-layer parameters.

[0677] As an embodiment, the N1 and the N2 are configured by a higher layer parameter whose name includes 'n1-n2-codebookSubsetRestriction'.

[0678] As an embodiment, the N1 and the N2 are configured by a higher layer parameter 'n1-n2-codebookSubsetRestriction'.

[0679] As an embodiment, there is a matrix set in the at least one matrix set, and the number of columns of each matrix in the matrix set is equal to a first rank number, and the first rank number is a positive integer.

[0680] As an embodiment, the number of columns of each matrix in the at least one matrix set is equal to a first rank number, and the first rank number is a positive integer.

[0681] As an embodiment, the first rank number is a number of layers.

[0682] As an embodiment, the first rank number is a transmission rank.

[0683] As an embodiment, the layer refers to: a MIMO (Multiple Input Multiple Output) layer.

[0684] As an embodiment, the layer refers to: a transmission layer.

[0685] As an embodiment, the first CSI indicates the first rank number.

[0686] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter.

[0687] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter whose name includes 'RI-Restriction'.

[0688] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter whose name includes 'typeII-RI-Restriction'.

[0689] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter 'RI-Restriction' or 'typeII-RI-Restriction'.

[0690] As an embodiment, the number of matrix sets in the at least one matrix set depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0691] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of matrix sets in the at least one matrix set is equal to 1.

[0692] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the number of matrix sets in the at least one matrix set is greater than 1.

[0693] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of matrix sets in the at least one matrix set is fixed (no configuration is required).

[0694] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the number of matrix sets in the at least one matrix set is configurable.

[0695] As a sub-embodiment of the above embodiment, the number of matrix sets in the at least one matrix set is configured in the first reporting.

[0696] As an embodiment, the first reporting configuration indicates a first type of parameter, N depends on the first type of parameter, and the number of matrix sets in the at least one matrix set is not greater than the N.

[0697] As a sub-embodiment of the above embodiment, when the first transmission opportunity is earlier than the first time slot, the number of matrix sets in the at least one matrix set is equal to 1.

[0698] As a sub-embodiment of the above embodiment, when the first transmission opportunity is earlier than the first time slot, the number of matrix sets in the at least one matrix set is equal to the N.

[0699] Example 10

[0700] Embodiment 10 illustrates a schematic diagram of a first PMI for at least one time window according to an embodiment of the present application; Fig.10 In embodiment 10, the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0701] As an embodiment, the first PMI is used for precoding for the at least one time window.

[0702] As an embodiment, the first PMI carries channel information for the at least one time window.

[0703] As an embodiment, the first PMI carries precoding information for the at least one time window.

[0704] As an embodiment, the first PMI carries a precoding matrix for the at least one time window.

[0705] As an embodiment, the first PMI is used to determine a precoding matrix for the at least one time window.

[0706] As an embodiment, the first PMI indicates a precoding matrix for the at least one time window.

[0707] As an embodiment, for each time window of the at least one time window, the first PMI is used for precoding for this time window.

[0708] As an embodiment, for each time window of the at least one time window, the first PMI carries precoding information for this time window.

[0709] As an embodiment, for each time window of the at least one time window, the first PMI is used to determine a precoding matrix for this time window.

[0710] As an embodiment, the at least one time window is a reporting window of the first PMI.

[0711] As an embodiment, any time window of the at least one time window includes at least one time slot.

[0712] As an embodiment, any time window of the at least one time window includes one or more continuous time slots.

[0713] As an embodiment, the lengths of any two time windows in the at least one time window are the same.

[0714] As an embodiment, any two time windows in the at least one time window include the same number of time slots.

[0715] As an embodiment, the number of time windows in the at least one time window is configured by RRC signaling.

[0716] As an embodiment, the number of time windows in the at least one time window is not greater than N, and the N depends on the first reporting configuration, and the N is a positive integer greater than 1.

[0717] As an embodiment, the first reporting configuration indicates a first type of parameter, and the N depends on the first type of parameter.

[0718] As an embodiment, the dependence of N on the first type of parameters means that N is equal to the first type of parameters.

[0719] As an embodiment, the dependence of N on the first type of parameters means that N is obtained by calculating the first type of parameters.

[0720] As an embodiment, the first type of parameters are used to determine the N.

[0721] As an embodiment, N is linearly related to the first type of parameters, and a linear phase coefficient between N and the first type of parameters is fixed or configurable.

[0722] As an embodiment, the first reporting configuration indicates the N.

[0723] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by RRC signaling.

[0724] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by the first reporting configuration.

[0725] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by the NZP-CSI-RS-ResourceSet that configures the first RS resource set.

[0726] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by the first reporting configuration.

[0727] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by the first trigger state.

[0728] As an embodiment, the number of time slots included in any time window of the at least one time window is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0729] As an embodiment, any time window of the at least one time window is no earlier than the time slot allocated to the first CSI.

[0730] As an embodiment, at least one time window of the at least one time window is no earlier than the time slot allocated to the first CSI.

[0731] As an embodiment, any time window of the at least one time window is no earlier than the latest time slot allocated to the first CSI.

[0732] As an embodiment, the offset between the earliest time slot in the earliest time window of the at least one time window and the time slot allocated to the first CSI is a sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0733] As an embodiment, the offset between the earliest time slot in the earliest time window of the at least one time window and the earliest time slot allocated to the first CSI is a sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0734] As an embodiment, the offset between the earliest time slot in the earliest time window of the at least one time window and the latest time slot allocated to the first CSI is the sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0735] As an embodiment, the sixth offset is configured by the first reporting configuration.

[0736] As an embodiment, the sixth offset is configured by the first trigger state.

[0737] As an embodiment, any time window of the at least one time window is not earlier than the CSI reference resource of the first CSI.

[0738] As an embodiment, the earliest time slot in the earliest time window of the at least one time window is the time slot where the CSI reference resource of the first CSI is located.

[0739] As an embodiment, the at least one time window is continuous in the time domain.

[0740] As an embodiment, the latest time slot in an earlier time window and the earliest time slot in the later time window of any two adjacent time windows in the at least one time window are two consecutive time slots.

[0741] As an embodiment, the latest time slot in an earlier time window and the earliest time slot in the later time window of any two adjacent time windows in the at least one time window are two adjacent downlink time slots.

[0742] As an embodiment, when the number of time windows in the at least one time window is greater than 1, the at least one time window is orthogonal to each other.

[0743] As an embodiment, the number of time windows in the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0744] As an embodiment, the position of the at least one time window in the time domain depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0745] As an embodiment, the number of time windows in the at least one time window and the position of the at least one time window in the time domain both depend on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0746] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of time windows in the at least one time window is less than the number of time windows in the at least one time window when the first transmission opportunity is not earlier than the first time slot.

[0747] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of time windows in the at least one time window is equal to 1.

[0748] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of time windows in the at least one time window is greater than 1.

[0749] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the number of time windows in the at least one time window is equal to N, and the N depends on the first reporting configuration.

[0750] As an embodiment, when the first transmission opportunity is earlier than the first time slot, the number of time windows in the at least one time window is fixed.

[0751] As an embodiment, when the first transmission opportunity is not earlier than the first time slot, the number of time windows in the at least one time window is configurable.

[0752] As a sub-embodiment of the above embodiment, the number of time windows in the at least one time window is configured by RRC signaling.

[0753] As a sub-embodiment of the above embodiment, the number of time windows in the at least one time window is configured by MACCE.

[0754] As an embodiment, the at least one time window is a subset of N time windows, where N is greater than 1 and is configurable.

[0755] As a sub-embodiment of the above embodiment, when the first transmission opportunity is earlier than the first time slot, the at least one time window is the earliest time window among the N time windows.

[0756] As a sub-embodiment of the above embodiment, when the first transmission opportunity is not earlier than the first time slot, the at least one time window is the N time windows.

[0757] As an embodiment, the benefits of the above method include: having good forward compatibility.

[0758] As an embodiment, the at least one time window is N time windows or a reference time window, and whether the at least one time window is the N time window or the reference time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain; the N is greater than 1, the N is configurable, and the reference time window depends on the CSI reference resource of the first CSI.

[0759] As a sub-embodiment of the above embodiment, when the first transmission opportunity is earlier than the first time slot, the at least one time window is the reference time window.

[0760] As a sub-embodiment of the above embodiment, when the first transmission opportunity is not earlier than the first time slot, the at least one time window is the N time windows.

[0761] As an embodiment, the benefits of the above method include: having good backward compatibility.

[0762] As an embodiment, the N depends on the first reporting configuration.

[0763] As an embodiment, the N time windows depend on the second signaling.

[0764] As an embodiment, the positions of the N time windows in the time domain depend on the second signaling.

[0765] As an embodiment, the positions of the N time windows in the time domain depend on the time domain resources occupied by the second signaling.

[0766] As an embodiment, the N time windows depend on the second signaling and the first reporting configuration.

[0767] As an embodiment, the positions of the N time windows in the time domain depend on the first reporting configuration.

[0768] As an embodiment, the positions of the N time windows in the time domain depend on the time domain resources occupied by the second signaling and the first reporting configuration.

[0769] As an embodiment, the positions of the N time windows in the time domain depend on the time domain resources occupied by the first CSI.

[0770] As an embodiment, the positions of the N time windows in the time domain depend on the time domain resources allocated to the first CSI.

[0771] As an embodiment, any time window among the N time windows is no earlier than the time slot allocated to the first CSI.

[0772] As an embodiment, at least one time window among the N time windows is no earlier than the time slot allocated to the first CSI.

[0773] As an embodiment, any time window among the N time windows is no earlier than the latest time slot allocated to the first CSI.

[0774] As an embodiment, the offset between the earliest time slot in the earliest time window among the N time windows and the time slot allocated to the first CSI is the sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0775] As an embodiment, the offset between the earliest time slot in the earliest time window among the N time windows and the earliest time slot allocated to the first CSI is the sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0776] As an embodiment, the offset between the earliest time slot in the earliest time window of the N time windows and the latest time slot allocated to the first CSI is the sixth offset, the sixth offset is a non-negative integer, and the sixth offset is configured by RRC signaling.

[0777] As an embodiment, any time window of the N time windows is not earlier than the CSI reference resource of the first CSI.

[0778] As an embodiment, the earliest time slot in the earliest time window among the N time windows is the time slot where the CSI reference resource of the first CSI is located.

[0779] As an embodiment, the N time windows are continuous in the time domain.

[0780] As an embodiment, the N time windows are N adjacent downlink time slots.

[0781] As an embodiment, the latest time slot in an earlier time window and the earliest time slot in the later time window of any two adjacent time windows in the N time windows are two consecutive time slots.

[0782] As an embodiment, the latest time slot in an earlier time window and the earliest time slot in the later time window of any two adjacent time windows in the N time windows are two adjacent downlink time slots.

[0783] As an embodiment, the reference time window is the time domain resource occupied by the CSI reference resource of the first CSI.

[0784] As an embodiment, the reference time window is an offset between time domain resources occupied by the CSI reference resource of the first CSI and is configured by higher layer signaling.

[0785] Embodiment 11

[0786] Embodiment 11 illustrates a schematic diagram of at least one matrix set and at least one time window according to an embodiment of the present application; Fig.11 In embodiment 11, at least one matrix set depends on the first PMI, the number of matrix sets in the at least one matrix set is equal to the number of time windows in the at least one time window, and the at least one matrix set is respectively for the at least one time window. Fig.11 In the embodiment, the matrix set in the at least one matrix set is represented as matrix set #0 (the at least one matrix set includes only one matrix set) or matrix set #0, matrix set #1, ..., (the at least one matrix set includes multiple matrix sets); the time window in the at least one time window is represented as time window #0 (the at least one time window includes only one time window) or time window #0, time window #1, ..., (the at least one time window includes multiple time windows).

[0787] As an embodiment, the problem to be solved by the present application includes: for CSI configured to report PMI for multiple time windows, how to determine the processing for such CSI.

[0788] As an embodiment, the essence of the present application includes: the first CSI is configured to report channel prediction information for multiple time windows; the problems to be solved by the present application include: for the CSI configured to report channel prediction, how to determine the processing for such CSI.

[0789] As an embodiment, in the above method, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which solves the above problem.

[0790] As an embodiment, the essence of the present application includes: determining the processing of CSI configured to report channel prediction information for multiple time windows according to whether RSs used for channel prediction have the same quasi-co-location relationship or TCI state.

[0791] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement used for channel prediction or for CSI reporting for medium / high speed UEs, ensuring the precision of CSI reporting, and improving system performance.

[0792] As an embodiment, the at least one matrix set respectively includes channel information for the at least one time window.

[0793] As an embodiment, the at least one matrix set respectively carries the channel information of the at least one time window.

[0794] As an embodiment, the at least one matrix set respectively includes channel information predicted for the at least one time window.

[0795] As an embodiment, the at least one matrix set respectively includes precoding information for the at least one time window.

[0796] As an embodiment, the at least one matrix set respectively includes precoding information predicted for the at least one time window.

[0797] As an embodiment, the at least one matrix set is respectively used for precoding of the at least one time window.

[0798] As an embodiment, the at least one matrix set respectively includes precoding matrices for the at least one time window.

[0799] As an embodiment, the at least one matrix set respectively indicates a precoding matrix for the at least one time window.

[0800] As an embodiment, the at least one matrix set is a set of precoding matrices for the at least one time window.

[0801] As an embodiment, the at least one matrix set respectively includes precoding matrices predicted for the at least one time window.

[0802] As an embodiment, the effective time of the at least one matrix set is respectively the at least one time window.

[0803] As an embodiment, the reference resources of the at least one matrix set are respectively the at least one time window in the time domain.

[0804] As an embodiment, there is a matrix set in the at least one matrix set, V columns of any matrix in the matrix set are precoding vectors of V layers, and V is the number of columns of any matrix.

[0805] As an embodiment, for any matrix set in the at least one matrix set, V columns of any matrix in this matrix set are precoding vectors of V layers, respectively, and V is the number of columns of the any matrix.

[0806] As an embodiment, there is a matrix set in the at least one matrix set, and the N3 matrices included in the one matrix set are precoding matrices for N3 PRB groups respectively, and N3 is the number of matrices included in the one matrix set.

[0807] As an embodiment, for any matrix set in the at least one matrix set, the N3 matrices included in this matrix set are precoding matrices for N3 PRB groups respectively, and N3 is the number of matrices included in this matrix set.

[0808] As an embodiment, for any matrix set in the at least one matrix set, the matrices in this matrix set are precoding matrices for the time window corresponding to this matrix set.

[0809] As an embodiment, for any matrix set in the at least one matrix set, the N3 matrices included in this matrix set are precoding matrices for the N3 PRB groups respectively for the time window corresponding to this matrix set, and the V columns of any matrix in this matrix set are precoding vectors for V layers of one PRB group among the N3 PRB groups for the time window corresponding to this matrix set; N3 is the number of matrices included in this matrix set, and V is the number of columns of any matrix.

[0810] As an embodiment, V is equal to the first rank number.

[0811] As an embodiment, the N3 depends on the number of the first sub-bands.

[0812] As an embodiment, N3 is equal to the product of the first parameter and the number of the first sub - bands, or equal to the product of the first parameter and the number of the first sub - bands minus 1, or equal to the product of the first parameter and the number of the first sub - bands minus 2.

[0813] As an embodiment, each PRB group among the N3 PRB groups includes one or more consecutive PRBs.

[0814] As an embodiment, each PRB group among the N3 PRB groups includes all or part of the PRBs in one sub - band among the number of the first sub - bands.

[0815] As an embodiment, each PRB group among the N3 PRB groups is composed of all or part of the PRBs in one sub - band among the number of the first sub - bands.

[0816] As an embodiment, except for the sub - bands located at the edge of the BWP, each of the other sub - bands among the number of the first sub - bands includes the first parameter number of PRB groups among the N3 PRB groups.

[0817] As an embodiment, except for the PRB groups located at the edge of the BWP, the number of PRBs included in the other PRB groups among the N3 PRB groups is the same.

[0818] As an embodiment, except for the PRB groups located at the edge of the BWP, the number of PRBs included in the other PRB groups among the N3 PRB groups is equal to P1 divided by the first parameter.

[0819] As an embodiment, when the first parameter is equal to 1, N3 is equal to the number of the first sub - bands, and the N3 PRB groups are respectively the number of the first sub - bands of sub - bands.

[0820] As an embodiment, when the first parameter is equal to 2, for each sub - band among the number of the first sub - bands that is not located at the edge of the BWP, the first P1 / 2 PRBs and the last P1 / 2 PRBs in this sub - band respectively form two PRB groups among the N3 PRB groups; P1 is a positive integer greater than 1.

[0821] As an embodiment, when the first parameter is equal to 2 and the number of the first sub - bands of sub - bands includes the first sub - band in a BWP, if (Ns mod P1)≥P1 / 2, the first sub - band forms one PRB group among the N3 PRB groups; if (Ns mod P1)<P1 / 2, the first P1 / 2-(N smodP1) PRBs and the last P1 / 2 PRBs respectively constitute two PRB groups in the N3 PRB groups; the P1 is a positive integer greater than 1, and the Ns is the index of the starting PRB of the one BWP.

[0822] As an embodiment, when the first parameter is equal to 2 and the first subband includes the last subband in a BWP, if 1+(Ns+Nw-1)mod P1≤P1 / 2, the last subband constitutes one PRB group among the N3 PRB groups; if 1+(Ns+Nw-1)modP1>P1 / 2, the first P1 / 2 PRBs and the last 1+(Ns+Nw-1)mod P1-P1 / 2 PRBs in the last subband respectively constitute two PRB groups among the N3 PRB groups; the P1 is a positive integer greater than 1, the Ns is the index of the starting PRB of the BWP, and the Nw is the number of PRBs included in the BWP.

[0823] As an embodiment, the PRBs in a sub-band are arranged in ascending order according to the PRB index (PRB number).

[0824] As an embodiment, the PRB index is n in TS 38.211. PRB .

[0825] As an embodiment, the PRBs in a sub-band are arranged in order from low to high according to the frequencies of the occupied frequency domain resources.

[0826] As an embodiment, the subbands in a BWP are arranged in ascending order according to the PRB indexes of the included PRBs.

[0827] As an embodiment, the subbands in a BWP are arranged in order from low to high frequencies of the frequency domain resources occupied.

[0828] Example 12

[0829] Embodiment 12 illustrates a schematic diagram of a first CQI group depending on a first CSI according to an embodiment of the present application; Fig.12 In embodiment 12, the first CQI group includes one or more CQIs; multiple matrix sets depend on the first CSI, and each CQI in the first CQI group is calculated based on the first matrix set in the multiple matrix sets; and the multiple matrix sets are respectively for multiple time windows.

[0830] As an embodiment, the benefits of the above method include: ensuring that the sender and receiver of the first CSI have no ambiguity in understanding the CQI in the first CQI group.

[0831] As an embodiment, the benefits of the above method include: saving signaling overhead.

[0832] As an embodiment, the number of matrix sets in the at least one matrix set is greater than 1, and the multiple matrix sets are the at least one matrix set.

[0833] As an embodiment, the number of time windows in the at least one time window is greater than 1, and the multiple time windows are the at least one time window.

[0834] As an embodiment, the number of matrix sets in the multiple matrix sets and the number of time windows in the multiple time windows are both equal to the N.

[0835] As an embodiment, the multiple matrix sets are arranged in order from early to late according to the time windows.

[0836] As an embodiment, the first matrix set refers to a matrix set for the earliest time window among the multiple time windows among the multiple matrix sets.

[0837] As an embodiment, the first CQI group being dependent on the first CSI means that: the first CSI includes the first CQI group.

[0838] As an embodiment, the first CQI group being dependent on the first CSI means that: the first CSI indicates the first CQI group.

[0839] As an embodiment, the first CSI indicates each CQI in the first CQI group.

[0840] As an embodiment, each CQI in the first CQI group is calculated based on at least one matrix in the first matrix set.

[0841] As an embodiment, each CQI in the first CQI group is for the earliest time window among the multiple time windows.

[0842] As an embodiment, each CQI in the first CQI group is for the earliest time slot in the multiple time windows.

[0843] As an embodiment, the first CQI group includes a wideband CQI.

[0844] As a sub-embodiment of the above embodiment, the wideband CQI is calculated based on all matrices in the first matrix set.

[0845] As an embodiment, the first CQI group includes at least one sub-band CQI (sub-band CQI).

[0846] As a sub-embodiment of the above embodiment, each sub-band CQI in the at least one sub-band CQI is calculated based on a matrix in the first matrix set.

[0847] As an embodiment, the first node calculates each CQI in the first CQI group based on the assumption that the ratio between PDSCH EPRE (Energy per resource element) and EPRE of the second RS resource is a first ratio, and the first ratio is indicated by a higher layer parameter 'powerControlOffset' of the first RS resource.

[0848] As a sub-embodiment of the above embodiment, the first node calculates each CQI in the first CQI group on the basis of assuming that a ratio between a PDSCH EPRE and an EPRE of the first RS resource is the first ratio.

[0849] As an embodiment, the first node calculates each CQI in the first CQI group based on the assumption that the ratio between PDSCH EPRE and EPRE of each of the K RS resources is a first ratio, and the first ratio is indicated by a higher layer parameter 'powerControlOffset' of the first RS resource.

[0850] As an embodiment, the higher layer parameter 'powerControlOffset' of the first RS resource refers to the 'powerControlOffset' field of the NZP-CSI-RS-Resource IE used to configure the first RS resource.

[0851] As an embodiment, the first node assumes that the time domain resources occupied by the PDSCH belong to the earliest time window among the multiple time windows, and calculates each CQI in the first CQI group based on this assumption.

[0852] As an embodiment, the first node assumes that the time domain resources occupied by the PDSCH belong to the earliest time slot in the multiple time windows, and calculates each CQI in the first CQI group based on this assumption.

[0853] As an embodiment, the first node calculates each CQI in the first CQI group based on the following assumptions:

[0854] A ratio between the PDSCH EPRE and the EPRE of the second RS resource is the first ratio;

[0855] A ratio between the PDSCH EPRE and the EPRE of the first RS resource is the first ratio;

[0856] The time domain resources occupied by the PDSCH belong to the earliest time slot among the multiple time windows.

[0857] As an embodiment, the given CQI is a CQI in the first CQI group, and the given CQI is a CQI with a maximum CQI index that satisfies the following conditions: when a PDSCH TB adopts the modulation mode, target code rate and transport block size corresponding to the given CQI and occupies the first time-frequency resource, it can be received with a transport block error rate not exceeding a second threshold; the first time-frequency resource belongs to the earliest time window among the multiple time windows in the time domain, and the second threshold is a positive real number less than 1.

[0858] As a sub-embodiment of the above embodiment, the first time-frequency resource belongs to the earliest time slot among the multiple time windows in the time domain.

[0859] As a sub-embodiment of the above embodiment, the given CQI is any CQI in the first CQI group.

[0860] As a sub-embodiment of the above embodiment, the given CQI is calculated based on the first matrix set.

[0861] As a sub-embodiment of the above embodiment, the given CQI is a wideband CQI, and the first time-frequency resource is defined as several sub-bands of the first sub-band in the frequency domain.

[0862] As a sub-embodiment of the above embodiment, the given CQI is any sub-band CQI in the first CQI group, the first time-frequency resource is defined as a given PRB group in the frequency domain, and the given PRB group is one of the N3 PRB groups.

[0863] As a preferred embodiment of the above sub-embodiment, the given CQI is calculated based on a given matrix in the first matrix set, and the given matrix is ​​a precoding matrix of the given PRB group.

[0864] As an embodiment, the second threshold is equal to 0.1 or 0.00001.

[0865] As an embodiment, the first CSI does not include CQIs other than the first CQI group.

[0866] As an embodiment, the benefits of the above method include: improving CSI reporting efficiency and reducing reporting overhead.

[0867] As an embodiment, the first CSI includes the first CQI group and the second CQI group, the second CQI group includes one or more CQIs, each CQI in the second CQI group is calculated based on a reference matrix set, and the reference matrix set is a matrix set among the multiple matrix sets that is different from the first matrix set.

[0868] As a sub-embodiment of the above embodiment, the reference matrix set is the w1th matrix set among the multiple matrix sets, and w1 is equal to the number of matrix sets in the multiple matrix sets divided by 2 and then rounded up or down.

[0869] As a sub-embodiment of the above embodiment, the reference matrix set is the last matrix set among the multiple matrix sets.

[0870] As a sub-embodiment of the above embodiment, each CQI in the second CQI group is for a reference time slot in the multiple time windows.

[0871] As a preferred embodiment of the above sub-embodiment, the reference time slot is the w2th time window in the multiple time windows, and w2 is equal to the number of time slots in the multiple time windows divided by 2 and then rounded up or down.

[0872] As another preferred embodiment of the above sub-embodiment, the reference time slot is the latest time slot among the multiple time windows.

[0873] As an embodiment, the benefits of the above method include: improving the reporting accuracy of CQI.

[0874] Example 13

[0875] Embodiment 13 illustrates a schematic diagram of K transmission opportunities according to an embodiment of the present application; Fig.13As shown. In embodiment 13, the RS resources for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resource and the second RS resource; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity. Fig.13 In the example, the K transmission opportunities are respectively represented as transmission opportunity #0, transmission opportunity #1, ..., transmission opportunity #(K-1).

[0876] As an embodiment, each of the K RS resources is a CSI-RS resource.

[0877] As an embodiment, each of the K RS resources is a NZP CSI-RS resource.

[0878] As an embodiment, each of the K RS resources is configured by an NZP-CSI-RS-ResourceIE.

[0879] As an embodiment, the K RS resources are respectively configured by K different NZP-CSI-RS-Resource IEs.

[0880] As an embodiment, each of the K RS resources is identified by an NZP-CSI-RS-ResourceId.

[0881] As an embodiment, the K RS resources are respectively identified by K different NZP-CSI-RS-ResourceIds.

[0882] As an embodiment, the K RS resources all belong to the first RS resource set.

[0883] As an embodiment, the first RS resource set consists of the K RS resources.

[0884] As an embodiment, the first RS resource and the second RS resource are respectively one RS resource among the K RS resources.

[0885] As an embodiment, each of the K RS resources is configured with at least one port, and any two of the K RS resources are configured with an equal number of ports.

[0886] As an embodiment, ports with the same index of any two RS resources among the K RS resources are the same ports.

[0887] As an embodiment, the first node assumes that ports with the same index of any two RS resources among the K RS resources are the same ports.

[0888] As an embodiment, the K RS resources are configured with the same starting PRB and PRB number.

[0889] As an embodiment, the K RS resources are configured with the same cdm type.

[0890] As an embodiment, the K RS resources are configured with the same density.

[0891] As an embodiment, the K RS resources are configured with the same density measured in units of the number of REs per port per PRB.

[0892] As an embodiment, the K RS resources occupy the same RE in one time-frequency unit.

[0893] As an embodiment, the K RS resources have the same pattern.

[0894] As an embodiment, the second transmission opportunity is any transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[0895] As an embodiment, the second signaling triggers the first node to receive RS in the K transmission opportunities.

[0896] As an embodiment, the K transmission opportunities are transmission opportunities of the K RS resources triggered by the second signaling.

[0897] As an embodiment, each of the K transmission opportunities includes one or more symbols.

[0898] As an embodiment, each of the K transmission opportunities includes one or more consecutive symbols.

[0899] As an embodiment, the K transmission opportunities are mutually orthogonal in the time domain.

[0900] As an embodiment, any transmission opportunity among the K transmission opportunities belongs to a time slot.

[0901] As an embodiment, the K transmission opportunities belong to K different time slots respectively.

[0902] As an embodiment, the number of symbols included in any two transmission opportunities among the K transmission opportunities is equal.

[0903] As an embodiment, the K transmission opportunities are arranged in sequence from early to late in the time domain.

[0904] As an embodiment, the K transmission opportunities depend on the second signaling.

[0905] As an embodiment, the positions of the K transmission opportunities in the time domain depend on the second signaling.

[0906] As an embodiment, the second signaling is transmitted in slot n, and the earliest transmission opportunity among the K transmission opportunities belongs to slot (n+first offset); the first offset is configurable or fixed; the first offset is a non-negative integer.

[0907] As an embodiment, the second signaling is transmitted in slot n, and the i-th transmission opportunity among the K transmission opportunities belongs to slot (n+first offset+(i-1)×seventh offset); the first offset is configurable or fixed, the first offset is a non-negative integer, the seventh offset is configurable, and the seventh offset is a positive integer; i is any positive integer not greater than K.

[0908] As an embodiment, the benefits of the above method include simplifying signaling configuration and reducing signaling overhead.

[0909] As an embodiment, the benefits of the above method include improving the accuracy of channel measurement used for channel prediction or for calculating CSI reporting of medium / high speed UEs, improving CSI reporting accuracy, and improving overall system performance.

[0910] As an embodiment, the seventh offset is an RRC signaling configuration.

[0911] As an embodiment, the seventh offset is configured by the base station to the first node.

[0912] As an embodiment, the seventh offset is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0913] As an embodiment, (the seventh offset -1) is an RRC signaling configuration.

[0914] As an embodiment, (the seventh offset - 1) is configured by the base station to the first node.

[0915] As an embodiment, (the seventh offset - 1) is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0916] As an embodiment, the second transmission opportunity is the jth transmission opportunity among the K transmission opportunities, and the second offset is equal to (j-1)×the seventh offset; the j is a positive integer not greater than the K and greater than 1.

[0917] As an embodiment, the i-th transmission opportunity among the K transmission opportunities is earlier than the (i+1)-th transmission opportunity among the K transmission opportunities in the time domain, and i is any positive integer less than K.

[0918] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the K transmission opportunities.

[0919] As an embodiment, the first node obtains channel measurements for calculating the first CSI based on only part of the K transmission opportunities.

[0920] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on only a transmission opportunity that is not earlier than the first time slot among the K transmission opportunities.

[0921] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on the transmission opportunities of the K RS resources that are no earlier than the first time slot.

[0922] As an embodiment, the first node obtains the channel measurement for calculating the first CSI only based on the transmission opportunity of the CSI reference resource of the K RS resources that is no later than the first CSI.

[0923] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on the transmission opportunity of the CSI reference resource of the K RS resources that is no earlier than the first time slot and no later than the first CSI.

[0924] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on transmission opportunities of the K RS resources within the measurement time window.

[0925] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on transmission opportunities of the K RS resources that are no earlier than the first time slot and are within the measurement time window.

[0926] Embodiment 14

[0927] Embodiment 14 illustrates a schematic diagram of a first CSI resource according to an embodiment of the present application; Fig.14 In embodiment 14, the resource used for interference measurement indicated by the first reporting configuration includes a first CSI resource.

[0928] As an embodiment, the first CSI resource is an NZP CSI-RS resource.

[0929] As an embodiment, the first CSI resource is configured by an NZP-CSI-RS-Resource IE.

[0930] As an embodiment, the first CSI resource is identified by an NZP-CSI-RS-ResourceId.

[0931] As an embodiment, the first CSI resource is a CSI-IM resource.

[0932] As an embodiment, the first CSI resource is configured by a CSI-IM-Resource IE.

[0933] As an embodiment, the first CSI resource is identified by a CSI-IM-ResourceId.

[0934] As an embodiment, the 'csi-IM-ResourcesForInterference' field or the 'nzp-CSI-RS-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource.

[0935] As an embodiment, the first CSI resource, the first RS resource and the second RS resource are configured in the same cell.

[0936] As an embodiment, the first CSI resource, the first RS resource and the second RS resource are configured in the same BWP.

[0937] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration only include the first CSI resources.

[0938] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include at least one CSI resource other than the first CSI resource.

[0939] As an embodiment, the first CSI resource belongs to a first CSI resource set.

[0940] As an embodiment, the advantages of the above method include: quantitative backward compatibility and small changes to the standard.

[0941] As an embodiment, the first CSI resource is a CSI-IM resource, and the first CSI resource set is a CSI-IM resource set.

[0942] As a sub-embodiment of the above embodiment, the first CSI resource set is configured by a CSI-IM-ResourceSet IE.

[0943] As a sub-embodiment of the above embodiment, the first CSI resource set is identified by a CSI-IM-ResourceSetId.

[0944] As a sub-embodiment of the above embodiment, the 'csi-IM-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource set.

[0945] As an embodiment, the first CSI resource is an NZP CSI-RS resource, and the first CSI resource set is an NZP CSI-RS resource set.

[0946] As a sub-embodiment of the above embodiment, the first CSI resource set is configured by an NZP-CSI-RS-ResourceSet IE.

[0947] As a sub-embodiment of the above embodiment, the first CSI resource set is identified by an NZP-CSI-RS-ResourceSetId.

[0948] As a sub-embodiment of the above embodiment, the 'nzp-CSI-RS-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource set.

[0949] As an embodiment, the first CSI resource set only includes the first CSI resource.

[0950] As an embodiment, the benefits of the above method include: simplifying signaling design and saving signaling overhead.

[0951] As an embodiment, the first CSI resource set includes at least one CSI resource other than the first CSI resource, and higher layer signaling is used to indicate the first CSI resource from the first CSI resource set.

[0952] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0953] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration only include the first CSI resource set.

[0954] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include at least one CSI resource set other than the first CSI resource set.

[0955] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include multiple CSI resource sets, and the first CSI resource set is one of the multiple CSI resource sets; the first trigger state indicates the first CSI resource set from the multiple CSI resource sets.

[0956] As a sub-embodiment of the above embodiment, the multiple CSI resource sets correspond to the multiple RS resource sets one-to-one, and the first CSI resource set is a CSI resource set among the multiple CSI resource sets that corresponds to the first RS resource set.

[0957] As a preferred embodiment of the above sub-embodiment, the first trigger state indicates the first CSI resource set by indicating the first RS resource set.

[0958] As an embodiment, the first reporting configuration indicates that the resources used for interference measurement include the first CSI resource by indicating that the resources used for interference measurement include the first CSI resource set.

[0959] As an embodiment, the resources used for interference measurement refer to: CSI resources and / or CSI resource sets indicated by the 'csi-IM-ResourcesForInterference' field and / or the 'nzp-CSI-RS-ResourcesForInterference' field of the first reporting configuration.

[0960] As an embodiment, the first node obtains interference measurement for calculating the first CSI based only on the first CSI resource.

[0961] As an embodiment, the first node obtains interference measurement for calculating the first CSI only based on a transmission opportunity of a CSI reference resource of the first CSI resource that is no later than the first CSI.

[0962] As an embodiment, the first node obtains interference measurement for calculating the first CSI only based on a transmission opportunity of the first CSI resource that is not earlier than the first time slot.

[0963] As an embodiment, the first node obtains interference measurement for calculating the first CSI only based on a transmission opportunity of the first CSI resource that is no later than a CSI reference resource of the first CSI and no earlier than the first time slot.

[0964] As an embodiment, the first node obtains interference measurement for calculating the first CSI only based on transmission opportunities of the first CSI resource that are within the measurement time window.

[0965] As an embodiment, the first node obtains interference measurement for calculating the first CSI only based on transmission opportunities of the first CSI resource that are not earlier than the first time slot and are within the measurement time window.

[0966] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the first RS resource and the second RS resource, and the first node obtains interference measurement for calculating the first CSI based only on the first CSI resource.

[0967] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the K RS resources, and the first node obtains interference measurement for calculating the first CSI only based on the first CSI resource.

[0968] Embodiment 15

[0969] Embodiment 15 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig.15 As shown in the attached Fig.15 In the example, the processing device 1500 in the first node includes a first processor 1501.

[0970] In embodiment 15, the first processor 1501 receives the first signaling and the second signaling.

[0971] In Example 15, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers a first CSI, and the first CSI depends on a first reporting configuration, and the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, and the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and the first transmission opportunity and the second transmission opportunity are orthogonal to each other; wherein, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0972] As a sub-embodiment of the above embodiment, the first reporting configuration is configured to report precoded PMIs respectively used for N time windows in one CSI reporting, where N is a positive integer greater than 1, and the N time windows are mutually orthogonal in pairs.

[0973] As a sub-embodiment of the above embodiment, the first RS resource and the second RS resource both belong to a first RS resource set, the first RS resource set is a CSI-RS resource set; the first transmission opportunity is earlier than the second transmission opportunity; the first TCI state takes effect from the first time slot; the time domain resources occupied by the first transmission opportunity and the time domain resources occupied by the second transmission opportunity depend on the second signaling.

[0974] As a sub-embodiment of the above embodiment, the first transmission opportunity is the latest transmission opportunity of the CSI reference resource of the first RS resource that is no later than the first CSI, and the second transmission opportunity is the latest transmission opportunity of the CSI reference resource of the second RS resource that is no later than the first CSI.

[0975] As a sub-embodiment of the above embodiment, the first transmission opportunity is a transmission opportunity of the first RS resource triggered by the second signaling, and the second transmission opportunity is a transmission opportunity of the second RS resource triggered by the second signaling.

[0976] As a sub-embodiment of the above embodiment, the ports with the same index of the first RS resource and the second RS resource are the same ports.

[0977] As a sub-embodiment of the above embodiment, the second signaling is transmitted in slot n, the first transmission opportunity belongs to time slot (n+first offset), and the second transmission opportunity belongs to time slot (n+the first offset+second offset); the first offset is a non-negative integer, and the second offset is a positive integer; the first offset is configurable or fixed, and the second offset is configurable.

[0978] As a sub-embodiment of the above embodiment, the first node uses the first TCI state to receive RS in the second transmission opportunity, and when the first transmission opportunity is not earlier than the first time slot, the first node uses the first TCI state to receive RS in the first transmission opportunity.

[0979] As a preferred embodiment of the above sub-embodiment, the first node receives RS in the first transmission opportunity using the first TCI state only when the first transmission opportunity is not earlier than the first time slot.

[0980] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node sends the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0981] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node updates the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0982] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that: the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0983] As an embodiment, the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0984] As a sub-embodiment of the above embodiment, when the number of time windows in the at least one time window is greater than 1, the at least one time window is orthogonal to each other.

[0985] As a sub-embodiment of the above embodiment, the number of time windows in the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain, or the position of the at least one time window in the time domain depends on the relationship between the first time slot and the first transmission opportunity in the time domain, or the number of time windows in the at least one time window and the position of the at least one time window in the time domain both depend on the relationship between the first time slot and the first transmission opportunity in the time domain.

[0986] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[0987] As a sub-embodiment of the above embodiment, the K RS resources all belong to the first RS resource set, the second transmission opportunity is any transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity, and the K transmission opportunities are mutually orthogonal in the time domain.

[0988] As a sub-embodiment of the above embodiment, ports with the same index of any two RS resources among the K RS resources are the same ports.

[0989] As a sub-embodiment of the above embodiment, the K transmission opportunities are transmission opportunities of the K RS resources triggered by the second signaling.

[0990] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include first CSI resources.

[0991] As a sub-embodiment of the above embodiment, the first node obtains interference measurement for calculating the first CSI only based on the first CSI resource.

[0992] As an embodiment, the first processor 1501 receives RS in the first transmission opportunity and the second transmission opportunity respectively.

[0993] As an embodiment, the first processor 1501 receives RSs respectively in the K transmission opportunities.

[0994] As an embodiment, the first processor 1501 updates the CSI for the first CSI.

[0995] As an embodiment, the first processor 1501 sends the first CSI.

[0996] As an embodiment, the first processor 1501 receives the third signaling before receiving the first signaling.

[0997] As an embodiment, the first processor 1501 receives RS in the third RS resource.

[0998] As an embodiment, the first processor 1501 sends HARQ-ACK in the first channel.

[0999] As an embodiment, the first node device is a user equipment.

[1000] As an embodiment, the first node device is a relay node device.

[1001] As an embodiment, the first processor 1501 includes at least one of {antenna 452, transmitter / receiver 454, transmit processor 468, receive processor 456, multi-antenna transmit processor 457, multi-antenna receive processor 458, controller / processor 459, memory 460, data source 467} in Example 4.

[1002] Example 16

[1003] Embodiment 16 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application; Fig.16 As shown in the attached Fig.16 In the example, the processing device 1600 in the second node includes a second processor 1601.

[1004] In Embodiment 16, the second processor 1601 sends the first signaling and the second signaling.

[1005] In Example 16, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers a first CSI, and the first CSI depends on a first reporting configuration, and the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, and the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and the first transmission opportunity and the second transmission opportunity are orthogonal to each other; wherein, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1006] As a sub-embodiment of the above embodiment, the first reporting configuration is configured to report precoded PMIs respectively used for N time windows in one CSI reporting, where N is a positive integer greater than 1, and the N time windows are mutually orthogonal in pairs.

[1007] As a sub-embodiment of the above embodiment, the first RS resource and the second RS resource both belong to a first RS resource set, the first RS resource set is a CSI-RS resource set; the first transmission opportunity is earlier than the second transmission opportunity; the first TCI state takes effect from the first time slot; the time domain resources occupied by the first transmission opportunity and the time domain resources occupied by the second transmission opportunity depend on the second signaling.

[1008] As a sub-embodiment of the above embodiment, the first transmission opportunity is the latest transmission opportunity of the CSI reference resource of the first RS resource that is no later than the first CSI, and the second transmission opportunity is the latest transmission opportunity of the CSI reference resource of the second RS resource that is no later than the first CSI.

[1009] As a sub-embodiment of the above embodiment, the first transmission opportunity is a transmission opportunity of the first RS resource triggered by the second signaling, and the second transmission opportunity is a transmission opportunity of the second RS resource triggered by the second signaling.

[1010] As a sub-embodiment of the above embodiment, the ports with the same index of the first RS resource and the second RS resource are the same ports.

[1011] As a sub-embodiment of the above embodiment, the second signaling is transmitted in slot n, the first transmission opportunity belongs to time slot (n+first offset), and the second transmission opportunity belongs to time slot (n+the first offset+second offset); the first offset is a non-negative integer, and the second offset is a positive integer; the first offset is configurable or fixed, and the second offset is configurable.

[1012] As a sub-embodiment of the above embodiment, the first TCI state is used to receive RS in the second transmission opportunity, and when the first transmission opportunity is not earlier than the first time slot, the first TCI state is used to receive RS in the first transmission opportunity.

[1013] As a preferred embodiment of the above sub-embodiment, the first TCI state is used to receive RS in the first transmission opportunity only when the first transmission opportunity is not earlier than the first time slot.

[1014] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first CSI is sent depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1015] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means: whether to update the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1016] As an embodiment, the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that: the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1017] As an embodiment, the first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1018] As a sub-embodiment of the above embodiment, when the number of time windows in the at least one time window is greater than 1, the at least one time window is orthogonal to each other.

[1019] As a sub-embodiment of the above embodiment, the number of time windows in the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain, or the position of the at least one time window in the time domain depends on the relationship between the first time slot and the first transmission opportunity in the time domain, or the number of time windows in the at least one time window and the position of the at least one time window in the time domain both depend on the relationship between the first time slot and the first transmission opportunity in the time domain.

[1020] As an embodiment, the RS resources used for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, respectively, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

[1021] As a sub-embodiment of the above embodiment, the K RS resources all belong to the first RS resource set, the second transmission opportunity is any transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity, and the K transmission opportunities are mutually orthogonal in the time domain.

[1022] As a sub-embodiment of the above embodiment, ports with the same index of any two RS resources among the K RS resources are the same ports.

[1023] As a sub-embodiment of the above embodiment, the K transmission opportunities are transmission opportunities of the K RS resources triggered by the second signaling.

[1024] As an embodiment, the resources used for interference measurement indicated by the first reporting configuration include first CSI resources.

[1025] As a sub-embodiment of the above embodiment, the target recipient of the second signaling obtains interference measurement for calculating the first CSI based only on the first CSI resource.

[1026] As an embodiment, the second processor 1601 sends RS in the first transmission opportunity and the second transmission opportunity respectively.

[1027] As an embodiment, the second processor 1601 sends RS respectively in the K transmission opportunities.

[1028] As an embodiment, the second processor 1601 receives the first CSI.

[1029] As an embodiment, the second processor 1601 sends the third signaling before sending the first signaling.

[1030] As an embodiment, the second processor 1601 sends RS in the third RS resource.

[1031] As an embodiment, the second processor 1601 receives HARQ-ACK in the first channel.

[1032] As an embodiment, the second node is a base station.

[1033] As an embodiment, the second node is user equipment.

[1034] As an embodiment, the second node is a relay node.

[1035] As an embodiment, the second processor 1601 includes at least one of {antenna 420, transmitter / receiver 418, transmit processor 416, receive processor 470, multi-antenna transmit processor 471, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Example 4.

[1036] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment,, transportation, vehicles, RSU, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhancedMTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB, gNB, TRP (Transmitter Receiver Point), GNSS, relay satellites, satellite base stations, aerial base stations, RSU (Road Side Unit), drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

[1037] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node used for wireless communication, characterized in that: include: A first processor receives a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; The first processor receives a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, where the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

2. The first node according to claim 1, characterized in that: The processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node sends the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

3. The first node according to claim 1, characterized in that: The processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that whether the first node updates the CSI for the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

4. The first node according to claim 1, characterized in that: The processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain, which means that the first CSI includes a first PMI, and the first PMI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

5. The first node according to claim 4, characterized in that: The first PMI is for at least one time window, and the at least one time window depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

6. The first node according to any one of claims 1 to 5, characterized in that: The RS resources for channel measurement indicated by the first reporting configuration include K RS resources, where K is a positive integer greater than 2; the K transmission opportunities are transmission opportunities of the K RS resources, and the K RS resources include the first RS resources and the second RS resources; the first transmission opportunity is the earliest transmission opportunity among the K transmission opportunities, and the second transmission opportunity is a transmission opportunity among the K transmission opportunities that is different from the first transmission opportunity.

7. The first node according to any one of claims 1 to 6, characterized in that: The resources used for interference measurement indicated by the first reporting configuration include first CSI resources.

8. A second node used for wireless communication, characterized in that: include: The second processor sends a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; The second processor sends a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

9. A method in a first node for wireless communication, characterized in that: include: receiving a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; receiving a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, where the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

10. A method in a second node for wireless communication, characterized in that: include: Sending a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; Sending a second signaling, where the second signaling triggers a first CSI, where the first CSI depends on a first reporting configuration, where the RS resources for channel measurement indicated by the first reporting configuration include a first RS resource and a second RS resource, where the first transmission opportunity is a transmission opportunity of the first RS resource, and the second transmission opportunity is a transmission opportunity of the second RS resource, and where the first transmission opportunity and the second transmission opportunity are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second transmission opportunity is no earlier than the first time slot, and the processing of the first CSI depends on the relationship between the first time slot and the first transmission opportunity in the time domain.

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