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. And the first node receives the first signaling and the second signaling, and respectively receives the first RS and the second RS in the first time window and the second time window. The first signaling indicates a first TCI state; the second signaling triggers a first RS and a second RS; the first time window and the second time window are mutually orthogonal; the first time slot depends on the first signaling; the second time window is not earlier than the first time slot, and whether the first node receives the second RS in the second time window by using the first TCI state depends on the relationship of the first time slot and the first time window in the time domain; when the first time window is not earlier than the first time slot, the first node receives the second RS in the second time window using the first TCI state. 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, 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-ReferenceSignal) resources for the UE for measurement, and configure a quasi-co-location relationship (such as Transmission Configuration Indicator, TCI state) for at least part of the CSI-RS resources to facilitate the UE to perform beam-related measurements.

[0003] In NR R (release) 17, the scheme (unified TCI) of TCI status of control channel, data channel and CSI-RS has been adopted to improve the speed of beam update. 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 (for example, but not limited to multiple TRP / panel, medium / high-speed mobile UE, and more flexible duplex mode or full-duplex mode, etc.). At the same time, the design of CSI-RS also needs to be enhanced. The applicant has found through research that the determination of the TCI state of the enhanced CSI-RS resources, especially under the unified TCI architecture, also needs to be enhanced. It should be noted that although the above description uses enhanced CSI reporting and enhanced CSI-RS resources as examples, the present application is also applicable to other schemes, such as traditional CSI reporting and traditional CSI-RS resources. In addition, the use of a unified solution for different scenarios (including but not limited to enhanced CSI reporting / CSI-RS resources and traditional CSI reporting / CSI-RS resources) 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 the first RS and the second RS;

[0009] Receiving the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other;

[0010] Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

[0011] As an embodiment, the problems to be solved by the present application include: when the second signaling triggers two RSs that are mutually orthogonal in the time domain, how to determine whether the first node uses the TCI state indicated by the DCI to receive the triggered RS; in the above method, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain, which solves this problem.

[0012] As an embodiment, the benefits of the above method include: ensuring that the first RS and the second RS always have the same quasi co-location relationship.

[0013] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement based on the first RS and the second RS, and improving 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 second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

[0016] As an embodiment, the benefits of the above method include: simplifying signaling design and reducing signaling overhead.

[0017] According to one aspect of the present application, it is characterized in that the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; and the K RSs are sent in K RS resources respectively.

[0018] As an embodiment, the benefits of the above method include: ensuring that the K RSs have the same quasi co-location relationship.

[0019] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement based on the K RSs and improving system performance.

[0020] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0021] According to one aspect of the present application, it is characterized by comprising:

[0022] receiving a first reporting configuration; the first reporting configuration indicating the first RS resource and the second RS resource;

[0023] The second signaling triggers a report of the first reporting configuration.

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

[0025] As an embodiment, the benefits of the above method include: simple implementation.

[0026] According to one aspect of the present application, it is characterized by comprising:

[0027] Sending a first CSI;

[0028] The first CSI depends on measurements of the first RS resources and the second RS resources.

[0029] As an embodiment, the advantages of the above method include: good backward compatibility and minor changes to the standard.

[0030] According to one aspect of the present application, it is characterized in that the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

[0031] As an embodiment, the benefits of the above method include: having good backward compatibility.

[0032] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel prediction and improving system performance.

[0033] According to one aspect of the present application, it is characterized in that the second signaling indicates a first trigger state, the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

[0034] As an embodiment, the advantages of the above method include: good backward compatibility and minor changes to the standard.

[0035] As an embodiment, the benefits of the above method include: simplifying the implementation complexity.

[0036] According to one aspect of the present application, it is characterized in that the first node is a user equipment.

[0037] According to one aspect of the present application, it is characterized in that the first node is a relay node.

[0038] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0039] Sending a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0040] Sending a second signaling, where the second signaling triggers the first RS and the second RS;

[0041] Sending the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other;

[0042] Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

[0043] According to one aspect of the present application, it is characterized in that the second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

[0044] According to one aspect of the present application, it is characterized in that the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; and the K RSs are sent in K RS resources respectively.

[0045] According to one aspect of the present application, it is characterized by comprising:

[0046] Sending a first reporting configuration; the first reporting configuration indicates the first RS resource and the second RS resource;

[0047] The second signaling triggers a report of the first reporting configuration.

[0048] According to one aspect of the present application, it is characterized by comprising:

[0049] receiving a first CSI;

[0050] The first CSI depends on measurements of the first RS resources and the second RS resources.

[0051] According to one aspect of the present application, it is characterized in that the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

[0052] According to one aspect of the present application, it is characterized in that the second signaling indicates a first trigger state, the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

[0053] According to one aspect of the present application, it is characterized in that the second node is a base station.

[0054] According to one aspect of the present application, it is characterized in that the second node is a user equipment.

[0055] According to one aspect of the present application, it is characterized in that the second node is a relay node.

[0056] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0057] A first receiver receives a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0058] The first receiver receives a second signaling, where the second signaling triggers a first RS and a second RS;

[0059] The first receiver receives the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other;

[0060] Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

[0061] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0062] A second transmitter sends a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI;

[0063] The second transmitter sends a second signaling, where the second signaling triggers the first RS and the second RS;

[0064] The second transmitter sends the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other;

[0065] Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

[0066] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0067] The accuracy of channel measurement is guaranteed and the accuracy of CSI reporting is improved.

[0068] The accuracy of channel measurements used for channel prediction or for calculating CSI reporting for medium / high speed UEs is guaranteed.

[0069] Improved system performance.

[0070] Has good backward compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] 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:

[0072] Figure 1 A flowchart of first signaling, second signaling, a first RS and a second RS according to an embodiment of the present application is shown;

[0073] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0074] Figure 3 A 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;

[0075] Figure 4A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0076] Figure 5 shows transmission between a first node and a second node according to an embodiment of the present application;

[0077] Figure 6 A schematic diagram showing a second signaling, a first time window, and a second time window according to an embodiment of the present application is shown;

[0078] Figure 7 A schematic diagram showing a first RS, a second RS and K RSs according to an embodiment of the present application is shown;

[0079] Figure 8 A schematic diagram showing a first reporting configuration according to an embodiment of the present application is shown;

[0080] Fig. 9 A schematic diagram of a first CSI according to an embodiment of the present application is shown;

[0081] Fig.10 A schematic diagram of a first CSI according to an embodiment of the present application is shown;

[0082] Fig.11 A schematic diagram showing multiple matrix sets and multiple time windows according to an embodiment of the present application is shown;

[0083] Fig.12 A schematic diagram showing a first CSI and a first CQI group according to an embodiment of the present application is shown;

[0084] Fig.13 A schematic diagram showing a first CSI, a first RS resource, a second RS resource and a first CSI resource according to an embodiment of the present application is shown;

[0085] Fig.14 A schematic diagram showing a first trigger state according to an embodiment of the present application is shown;

[0086] 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;

[0087] Fig.16 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0088] 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.

[0089] Example 1

[0090] Embodiment 1 illustrates a flowchart of first signaling, second signaling, first RS and second RS according to an embodiment of the present application, as shown in the attached figure. 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.

[0091] In Embodiment 1, the first node in the present application receives a first signaling in step 101, the first signaling indicates a first TCI state, and the first signaling is a DCI; receives a second signaling in step 102, the second signaling triggers a first RS and a second RS; receives the first RS and the second RS in a first time window and a second time window, respectively, in step 103, the first RS and the second RS are transmitted in a first RS resource and a second RS resource, respectively, and the first time window and the second time window are orthogonal to each other. Among them, the first time slot depends on the first signaling; the second time window is not earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is not earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

[0092] As an embodiment, the first signaling includes DCI (Downlink Control Information) for downlink grant (DownLink Grant).

[0093] As an embodiment, the first signaling is a DCI for downlink granting.

[0094] As an embodiment, the first signaling is DCI format 1_1 or DCI format 1_2.

[0095] As an embodiment, the CRC (Cyclic redundancy check) of the first signaling is scrambled by C (Cell)-RNTI (Radio Network Temporary Identifier).

[0096] As an embodiment, the CRC of the first signaling is scrambled by MCS (Modulation and Coding Scheme)-C-RNTI.

[0097] As an embodiment, the CRC of the first signaling is scrambled by CS (Configured Scheduling)-RNTI.

[0098] As an embodiment, the first signaling indicates a DCI field 'Transmission configuration indication' codepoint mapped to the first TCI (Transmission Configuration Indicator) state.

[0099] As an embodiment, the DCI field 'Transmission configuration indication' in the first signaling indicates the first TCI state.

[0100] 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.

[0101] 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).

[0102] As an embodiment, the first TCI state configures a quasi-co-location 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 (Txspatial 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).

[0103] As an embodiment, the second signaling includes physical layer signaling.

[0104] As an embodiment, the second signaling includes dynamic signaling.

[0105] As an embodiment, the second signaling includes layer 1 (L1) signaling.

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

[0107] As an embodiment, the second signaling is a DCI.

[0108] As an embodiment, the second signaling includes a DCI for uplink grant (UpLink Grant).

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

[0110] As an embodiment, the second signaling is DCI format 0_1 ​​or DCI format 0_2.

[0111] As an embodiment, the CRC of the second signaling is scrambled by C-RNTI.

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

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

[0114] As an embodiment, the second signaling includes MAC CE (Medium Access Control layerControl Element).

[0115] As an embodiment, the second signaling is earlier than the first signaling in the time domain.

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

[0117] As an embodiment, the first signaling and the second signaling are transmitted in the same cell.

[0118] As an embodiment, the first signaling and the second signaling are transmitted in the same BWP (Bandwidth part).

[0119] 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.

[0120] 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.

[0121] 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.

[0122] As an embodiment, the first RS resource and the second RS resource are configured by different NZP-CSI-RS-Resource IEs respectively.

[0123] 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.

[0124] As an embodiment, the first RS resource and the second RS resource are respectively identified by different NZP-CSI-RS-ResourceIds.

[0125] 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.

[0126] As an embodiment, the first RS resource set is an NZP CSI-RS resource set.

[0127] As an embodiment, the first RS resource set is configured by an NZP-CSI-RS-ResourceSet.

[0128] As an embodiment, the first RS resource set is identified by an NZP-CSI-RS-ResourceSetId.

[0129] As an embodiment, the second signaling triggers the first node to receive the first RS and the second RS.

[0130] As an embodiment, the second signaling triggers the first node to receive the first RS in the first time window and to receive the second RS in the second time window.

[0131] As an embodiment, the second signaling triggers one reception of the RS in the first RS resource and one reception of the RS in the second RS resource.

[0132] As an embodiment, the second signaling triggers the first node to receive RS in the first RS resource and the second RS resource.

[0133] As an embodiment, the first time window is a transmission occasion of the first RS resource.

[0134] As an embodiment, the second time window is a transmission opportunity of the second RS resource.

[0135] As an embodiment, the first time window is a transmission opportunity of the first RS resource triggered by the second signaling.

[0136] As an embodiment, the second time window is a transmission opportunity of the second RS resource triggered by the second signaling.

[0137] As an embodiment, the first RS is an RS transmitted in the first time window in the first RS resource.

[0138] As an embodiment, the second RS is an RS transmitted in the second time window in the second RS resource.

[0139] As an embodiment, the first time window includes one or more symbols, and the second time window includes one or more symbols.

[0140] As an embodiment, the first time window includes one or more consecutive symbols, and the second time window includes one or more consecutive symbols.

[0141] As an embodiment, the first time window belongs to a time slot, and the second time window belongs to a time slot.

[0142] As an embodiment, the first time window and the second time window belong to different time slots respectively.

[0143] As an embodiment, the first time window is earlier than the second time window.

[0144] As an embodiment, the number of symbols included in the first time window is equal to the number of symbols included in the second time window.

[0145] As an embodiment, the starting symbol of the second time window is not earlier than the starting symbol of the first time slot.

[0146] As an embodiment, the symbol refers to: OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0147] As an embodiment, the symbol refers to: a symbol obtained after the output of a transform precoding is subjected to OFDM symbol generation (Generation).

[0148] As an embodiment, the first time window and the second time window depend on the second signaling.

[0149] As an embodiment, the second signaling is used to determine the first time window and the second time window.

[0150] As an embodiment, the second signaling is transmitted in slot n, and the first time window belongs to slot (n+first offset); the first offset is configurable or fixed to 0.

[0151] As an embodiment, the first offset is a non-negative integer.

[0152] As an embodiment, the first offset is configured by a higher layer parameter.

[0153] As an embodiment, the first offset is configured by RRC signaling.

[0154] As an embodiment, the higher layer parameter for configuring the first offset includes a higher layer parameter including 'aperiodicTriggeringOffset' in its name.

[0155] As an embodiment, the higher layer parameter for configuring the first offset includes a higher layer parameter including 'ca-SlotOffset' in its name.

[0156] As an embodiment, the second signaling is transmitted in slot n, and the second time window belongs to slot (n+third offset); the third offset is configurable.

[0157] As an embodiment, the third offset is a non-negative integer.

[0158] As an embodiment, the third offset is a positive integer.

[0159] As an embodiment, the higher layer parameter configuring the third offset includes a higher layer parameter including 'aperiodicTriggeringOffset' in its name.

[0160] As an embodiment, the higher layer parameter configuring the third offset includes a higher layer parameter including 'ca-SlotOffset' in its name.

[0161] As an embodiment, the first node obtains channel measurement for calculating CSI of at least one CSI reporting configuration based on the first RS resource and the second RS resource; for each CSI reporting configuration in the at least one CSI reporting configuration, a CSI report for this CSI reporting configuration includes PMIs for multiple time windows respectively, and the multiple time windows are mutually orthogonal.

[0162] As a sub-embodiment of the above embodiment, the PMIs for multiple time windows respectively are used to calculate multiple matrix sets, and the multiple matrix sets respectively include precoding information for the multiple time windows.

[0163] As a sub-embodiment of the above embodiment, the first node obtains channel measurement for calculating the CSI of each CSI reporting configuration in the at least one CSI reporting configuration based on the first RS resource set.

[0164] As a sub-embodiment of the above embodiment, the first node also obtains channel measurement for calculating the CSI of at least one other CSI reporting configuration based on the first RS resource and the second RS resource, and a CSI report of each CSI reporting configuration in the at least one other CSI reporting configuration only includes the PMI for one time window.

[0165] The benefits of the above sub-embodiments include: more efficient signaling configuration and reduced signaling overhead.

[0166] As a preferred embodiment of the above-mentioned sub-embodiment, for each CSI reporting configuration in the at least one other CSI reporting configuration, the PMI included in a CSI report of this CSI reporting configuration is only used to generate a matrix set, and each matrix in the matrix set includes precoding information for the one time window.

[0167] As an embodiment, the first node obtains channel measurement for calculating CSI of at least one CSI reporting configuration based on the first RS resource and the second RS resource; for each CSI reporting configuration in the at least one CSI reporting configuration, a CSI report for this CSI reporting configuration includes multiple CQIs for multiple time windows respectively, and the multiple time windows are mutually orthogonal.

[0168] As a sub-embodiment of the above-mentioned embodiment, for any CQI among the multiple CQIs, this CQI is a CQI with a maximum CQI index that satisfies the following conditions: when a PDSCH TB (transport block) adopts a modulation scheme, a target code rate and a transport block size corresponding to this CQI and occupies a given time-frequency resource, it can be received with a transport block error rate not exceeding a first threshold; the given time-frequency resource belongs to a time window corresponding to this CQI in the multiple time windows in the time domain, and the first threshold is a positive real number less than 1.

[0169] 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 provide channel measurement for CSI reporting of medium / high speed UE; the problems to be solved by the present application include: how to determine whether to use the TCI state indicated by the DCI to receive the RS used for channel prediction or provide channel measurement for CSI reporting of medium / high speed UE; in the above method, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain, thereby solving the above problem.

[0170] As an embodiment, the first RS resource includes at least one port, the second RS resource includes at least one port, and the number of ports included in the first RS resource is equal to the number of ports included in the second RS resource.

[0171] As an embodiment, the port refers to: an RS port.

[0172] As an embodiment, the port refers to: a CSI-RS port.

[0173] As an embodiment, the port refers to: an antenna port.

[0174] As an embodiment, the ports with the same index of the first RS resource and the second RS resource are the same port.

[0175] 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.

[0176] 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.

[0177] As an embodiment, the problem to be solved by the present application includes: in a scenario where the port with the same index as the first RS resource and the second RS resource is the same port, how to determine whether the first node uses the TCI state indicated by the DCI to receive the second RS.

[0178] 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 UE; the problem to be solved by this application includes: how to determine whether to use the TCI state indicated by the DCI to receive the RS used for channel prediction or to provide channel measurement for CSI reporting of medium / high speed UE.

[0179] As an embodiment, in the above method, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain, thereby solving the above problem.

[0180] As an embodiment, the benefits of the above method include: ensuring that the first RS and the second RS have the same quasi-co-location relationship, and ensuring the accuracy of channel measurement.

[0181] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement used for channel prediction or for calculating CSI reporting of medium / high speed UE, and improving reporting accuracy.

[0182] As an embodiment, the benefits of the above method include: improving the overall performance of the system.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] As an embodiment, only when the port with the same index as the first RS resource and the second RS resource is the same port, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0187] As an embodiment, the benefits of the above method include: determining whether the first node uses the first TCI state to receive the second RS in the second time window based on the specific settings of the first RS resource and the second RS resource, optimizing the TCI state or quasi-co-location relationship of different RS resources, and improving the accuracy of channel measurement, thereby improving the overall system performance.

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

[0189] As an embodiment, when the ports with the same index of the first RS resource and the second RS resource are not the same port, the first node does not use the first TCI state to receive the second RS in the second time window.

[0190] As a sub-embodiment of the above embodiment, no matter whether the first time window is earlier than the first time slot, the first node does not use the first TCI state to receive the second RS in the second time window.

[0191] As an embodiment, a higher layer parameter indicates whether the ports with the same index of the first RS resource and the second RS resource are the same port.

[0192] As an embodiment, RRC signaling indicates whether the ports with the same index of the first RS resource and the second RS resource are the same port.

[0193] As an embodiment, the NZP-CSI-RS-ResourceSet IE configuring the first RS resource set indicates whether the ports with the same index of the first RS resource and the second RS resource are the same port.

[0194] As an embodiment, the first RS resource and the second RS resource are quasi co-located.

[0195] As an embodiment, the first RS resource and the second RS resource are quasi-co-located and the corresponding QCL (Quasico-location) type includes QCL-TypeD.

[0196] As an embodiment, the quasi-co-location of two RS resources means that: the large-scale properties of the channel on which symbols on a port of one of the two RS resources are conveyed can be inferred from the channel on which symbols on a port of the other of the two RS resources are conveyed.

[0197] As an embodiment, two RS resources are quasi-co-located and the corresponding QCL types include QCL-TypeD, which means that at least spatial reception parameters in the large-scale characteristics of the channel on which symbols on a port of one of the two RS resources are transmitted can be inferred from the channel on which symbols on a port of another RS ​​resource of the two RS resources are transmitted.

[0198] 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.

[0199] As an embodiment, the first RS resource and the second RS resource are configured with the same starting PRB (Physical Resource block) and PRB number.

[0200] As an embodiment, the first RS resource and the second RS resource are configured with the same cdm type.

[0201] As an embodiment, the first RS resource and the second RS resource are configured with the same density.

[0202] 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.

[0203] As an embodiment, the first RS resource and the second RS resource occupy the same RE in a time-frequency unit.

[0204] As an embodiment, the time-frequency unit refers to a resource block.

[0205] 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.

[0206] As an embodiment, the first RS resource and the second RS resource have the same pattern.

[0207] As an embodiment, the first RS resources and the second RS resources are configured in the same cell.

[0208] As an embodiment, the first RS resource and the second RS resource are configured in the same BWP (Bandwidth part).

[0209] As an embodiment, the first RS resource and the second RS resource are configured in the same carrier.

[0210] As an embodiment, the first TCI state takes effect from the first time slot.

[0211] As an embodiment, the first TCI state is applied starting from the first time slot.

[0212] As an embodiment, the first node transmits HARQ-ACK for the first signaling in a first channel, 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.

[0213] As an embodiment, the first signaling schedules a first PDSCH, the first node transmits HARQ-ACK for the first PDSCH in a first channel, 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 depend on the first signaling.

[0214] As an embodiment, the HARQ-ACK for the first signaling indicates whether the first signaling is received correctly.

[0215] As an embodiment, the HARQ-ACK for the first signaling indicates that the first signaling is correctly received.

[0216] As an embodiment, the HARQ-ACK for the first PDSCH indicates whether the TB (Transport Block) carried by the first PDSCH is correctly received.

[0217] As an embodiment, the HARQ-ACK for the first PDSCH indicates that the TB carried by the first PDSCH is correctly received.

[0218] As an embodiment, the HARQ-ACK refers to positive HARQ-ACK.

[0219] As an embodiment, the HARQ-ACK refers to ACK (ACKnowledgement, confirmation).

[0220] 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.

[0221] As an embodiment, the fourth offset is configured by a higher layer parameter.

[0222] As an embodiment, the fourth offset is configured by RRC signaling.

[0223] As an embodiment, the name of the higher layer parameter configuring the fourth offset includes 'beamAppTime'.

[0224] As an embodiment, the fourth offset is configured by a higher layer parameter 'beamAppTime'.

[0225] As an embodiment, the first channel is a physical channel.

[0226] As an embodiment, the first channel is PUCCH.

[0227] As an embodiment, the first channel is PUSCH.

[0228] As an embodiment, the first channel is transmitted in time slot (m+fifth offset), time slot m 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.

[0229] As an embodiment, the time slot m is the time slot to which the last symbol of the PDCCH carrying the first signaling belongs.

[0230] As an embodiment, the time slot m is the last uplink time slot used for PUCCH transmission that overlaps with the reception of the PDCCH carrying the first signaling.

[0231] As an embodiment, the time slot m 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.

[0232] As an embodiment, the time slot m is the time slot to which the last symbol occupied by the first PDSCH belongs.

[0233] As an embodiment, the time slot m is the last uplink time slot for PUCCH transmission that overlaps with the reception of the first PDSCH.

[0234] As an embodiment, the time slot m 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.

[0235] As an embodiment, the first signaling indicates the time domain resources occupied by the first PDSCH.

[0236] 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.

[0237] As an embodiment, the fifth offset is configured by higher layer signaling.

[0238] As an embodiment, the first signaling indicates the fifth offset.

[0239] 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.

[0240] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: a sequence relationship between the first time slot and the first time window in the time domain.

[0241] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: whether the first time window is earlier than the first time slot.

[0242] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: whether the starting symbol of the first time window is earlier than the starting symbol of the first time slot.

[0243] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: the sequence relationship between the first time slot and the time slot to which the first time window belongs in the time domain.

[0244] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: whether the time slot to which the first time window belongs is earlier than the first time slot.

[0245] As an embodiment, the relationship between the first time slot and the first time window in the time domain refers to: whether the starting symbol of the time slot to which the first time window belongs is earlier than the starting symbol of the first time slot.

[0246] As an embodiment, the first time window being earlier than the first time slot means that: a starting symbol of the first time window is earlier than a starting symbol of the first time slot.

[0247] As an embodiment, the first time window being earlier than the first time slot means that: the time slot to which the first time window belongs is earlier than the first time slot.

[0248] As an embodiment, the first time window being earlier than the first time slot means that the starting symbol of the time slot to which the first time window belongs is earlier than the starting symbol of the first time slot. As an embodiment, the first time window being no earlier than the first time slot means that the starting symbol of the first time window is no earlier than the starting symbol of the first time slot.

[0249] As an embodiment, the first time window is no earlier than the first time slot means that the time slot to which the first time window belongs is no earlier than the first time slot.

[0250] As an embodiment, the first time window is no earlier than the first time slot means that: the starting symbol of the time slot to which the first time window belongs is no earlier than the starting symbol of the first time slot.

[0251] As an embodiment, the first node receives the first RS in the first time window and receives the second RS in the second time window using the same TCI state or the same quasi co-location relationship.

[0252] As an embodiment, the first node uses the first TCI state to receive the first RS in the first time window and receives the second RS in the second time window, or the first node neither uses the first TCI state to receive the first RS in the first time window nor uses the first TCI state to receive the second RS in the second time window.

[0253] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement based on the first RS and the second RS, improving the accuracy of CSI reporting, and thus improving the overall performance of the system.

[0254] As an embodiment, the relationship between the first time slot and the first time window in the time domain is used to determine whether the first node uses the first TCI state to receive the second RS in the second time window.

[0255] As an embodiment, the first node receives the second RS in the second time window using the first TCI state only when the first time window is not earlier than the first time slot.

[0256] As an embodiment, whether the first node uses the first TCI state to receive the first RS in the first time window depends on the relationship between the first time slot and the first time window in the time domain.

[0257] As an embodiment, the relationship between the first time slot and the first time window in the time domain is used to determine whether the first node receives the first RS in the first time window using the first TCI state.

[0258] As an embodiment, when the first time window is not earlier than the first time slot, the first node receives the first RS in the first time window using the first TCI state.

[0259] As an embodiment, the first node receives the first RS in the first time window using the first TCI state only when the first time window is not earlier than the first time slot.

[0260] As an embodiment, when the first time window is earlier than the first time slot, the first node receives the second RS in the second time window using a second TCI state, where the second TCI state is different from the first TCI state.

[0261] As a sub-embodiment of the above embodiment, the second TCI state is indicated by a third signaling, the third signaling is a DCI, and the first node receives the third signaling before receiving the first signaling.

[0262] As a sub-embodiment of the above embodiment, when the first time window is earlier than the first time slot, the first node receives the first RS in the first time window using the second TCI state.

[0263] As an embodiment, the third signaling is earlier than the second signaling.

[0264] As an embodiment, the third signaling is later than the second signaling.

[0265] As an embodiment, the third signaling is DCI format 1_1 or DCI format 1_2.

[0266] As an embodiment, the CRC of the third signaling is scrambled by the C-RNTI.

[0267] As an embodiment, the CRC of the third signaling is scrambled by MCS-C-RNTI.

[0268] As an embodiment, the CRC of the third signaling is scrambled by the CS-RNTI.

[0269] As an embodiment, when the first time window is earlier than the first time slot, the second RS and third RS resources received in the second time window 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.

[0270] As a sub-embodiment of the above embodiment, the third RS resource is identified during the access process.

[0271] As a sub-embodiment of the above embodiment, the second RS and the third RS resources received in the second time window are quasi-co-located and the corresponding quasi-co-location type includes QCL-TypeD.

[0272] As a sub-embodiment of the above embodiment, the first node assumes that the second RS and the third RS resources received in the second time window are quasi co-located.

[0273] As a sub-embodiment of the above embodiment, the first node assumes that the second RS and the third RS resources received in the second time window are quasi-co-located and the corresponding quasi-co-location type includes QCL-TypeD.

[0274] As a sub-embodiment of the above embodiment, when the first time window is earlier than the first time slot, the first RS and the third RS resources received in the first time window are quasi-co-located.

[0275] As a sub-embodiment of the above embodiment, when the first time window is earlier than the first time slot, the first RS and the third RS resources received in the first time window are quasi-co-located and the corresponding quasi-co-location type includes QCL-TypeD.

[0276] As a sub-embodiment of the above embodiment, when the first time window is earlier than the first time slot, the first node assumes that the first RS and the third RS resources received in the first time window are quasi co-located.

[0277] As a sub-embodiment of the above embodiment, when the first time window is earlier than the first time slot, the first node assumes that the first RS and the third RS resources received in the first time window are quasi-co-located and the corresponding quasi-co-location type includes QCL-TypeD.

[0278] As an embodiment, the access procedure is an initial access procedure.

[0279] As an embodiment, the access procedure is a random access procedure.

[0280] As an embodiment, the access procedure is a random access procedure initiated by reconfiguration of a synchronization procedure.

[0281] As an embodiment, the third RS resource is randomly selected by the first node.

[0282] As an embodiment, the third RS resource is randomly selected by the first node with the same probability.

[0283] 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).

[0284] As an embodiment, the third RS resource is randomly selected by the first node from all CSI-RS resources or SS / PBCH Block resources whose RSRP is greater than a first given threshold.

[0285] As an embodiment, the selection of the third RS resource is implementation-dependent.

[0286] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that: the one TCI state includes parameters for configuring a quasi-co-site relationship between the one RS and one or two downlink reference signals in the one time window.

[0287] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that the RS in the time window and each downlink reference signal indicated by the TCI state are quasi-co-located.

[0288] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that the first node assumes that the one RS in the one time window and each downlink reference signal indicated by the one TCI state are quasi-co-located.

[0289] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that for each downlink reference signal indicated by the first TCI state, the RS in the time window and the downlink reference signal are quasi-co-located and the corresponding QCL type is the QCL type indicated by the TCI state for the downlink reference signal.

[0290] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that for each downlink reference signal indicated by the first TCI state, the first node assumes that the RS in the time window and the downlink reference signal are quasi-co-located and the corresponding QCL type is the QCL type indicated by the TCI state for the downlink reference signal.

[0291] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that for each downlink reference signal indicated by the first TCI state, a port of the RS in the time window and a port of the downlink reference signal are quasi-co-located and the corresponding QCL type is the QCL type indicated by the TCI state for the downlink reference signal.

[0292] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that for each downlink reference signal indicated by the first TCI state, the first node assumes that the port of the RS in the time window and the port of the downlink reference signal are quasi-co-located and the corresponding QCL type is the QCL type indicated by the TCI state for the downlink reference signal.

[0293] As an embodiment, the first node uses a TCI state to receive an RS in a time window, which means that for each downlink reference signal indicated by the first TCI state, the first node can infer the large-scale characteristics of the channel on which the RS in the time window is transmitted from the channel on which the downlink reference signal is transmitted.

[0294] As an embodiment, the one TCI state mentioned above is any one of the first TCI state or the second TCI state; the one time window mentioned above is any one of the first time window and the second time window, and the one RS mentioned above is the one of the first RS and the second RS received in the one time window.

[0295] Example 2

[0296] 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.

[0297] Attached Figure 2 The 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 5G NR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. 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.

[0298] As an embodiment, the UE201 corresponds to the first node in the present application.

[0299] As an embodiment, the gNB203 corresponds to the second node in this application.

[0300] As an embodiment, the wireless link between the UE201 and the gNB203 includes a cellular network link.

[0301] As an embodiment, the sender of the first signaling includes the gNB203.

[0302] As an embodiment, the recipient of the first signaling includes the UE201.

[0303] As an embodiment, the sender of the second signaling includes the gNB203.

[0304] As an embodiment, the recipient of the second signaling includes the UE201.

[0305] As an embodiment, the sender of the first RS and the second RS includes the gNB203.

[0306] As an embodiment, the receivers of the first RS and the second RS include the UE201.

[0307] As an embodiment, the UE 201 supports a unified TCI architecture.

[0308] As an embodiment, the UE201 supports CSI reporting for medium / high-speed mobile UEs.

[0309] As an embodiment, the UE201 supports multiple TRP / panel transmission.

[0310] As an embodiment, the UE 201 supports a more flexible duplex mode or a full-duplex mode.

[0311] Example 3

[0312] 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.

[0313] 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 between 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 with 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.).

[0314] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0315] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0316] As an embodiment, the first signaling is generated in the PHY301 or the PHY351.

[0317] As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0318] As an embodiment, the second signaling is generated in the PHY301 or the PHY351.

[0319] As an embodiment, the second signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0320] As an embodiment, the first RS and the second RS are generated by the PHY301 or the PHY351.

[0321] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0322] Example 4

[0323] 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.

[0324] 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 .

[0325] 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.

[0326] 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.

[0327] 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.

[0328] 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.

[0329] 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.

[0330] 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 at least receives the first signaling; receives the second signaling; receives the first RS and the second RS in the first time window and the second time window respectively. Wherein, the first signaling indicates a first TCI state, the first signaling is a DCI; the second signaling triggers the first RS and the second RS; the first RS and the second RS are transmitted in the first RS resource and the second RS resource respectively, the first time window and the second time window are orthogonal to each other; the first time slot depends on the first signaling; the second time window is not earlier than the first time slot, whether the second communication device 450 uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is not earlier than the first time slot, the second communication device 450 uses the first TCI state to receive the second RS in the second time window.

[0331] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving the first signaling; receiving the second signaling; receiving the first RS and the second RS in the first time window and the second time window, respectively.

[0332] 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 at least sends the first signaling; sends the second signaling; sends the first RS and the second RS in the first time window and the second time window respectively. Wherein, the first signaling indicates a first TCI state, the first signaling is a DCI; the second signaling triggers the first RS and the second RS; the first RS and the second RS are transmitted in the first RS resource and the second RS resource respectively, the first time window and the second time window are orthogonal to each other; the first time slot depends on the first signaling; the second time window is not earlier than the first time slot, whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is not earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

[0333] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending the first signaling; sending the second signaling; sending the first RS and the second RS in the first time window and the second time window, respectively.

[0334] As an embodiment, the first node in the present application includes the second communication device 450.

[0335] As an embodiment, the second node in the present application includes the first communication device 410.

[0336] 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.

[0337] 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.

[0338] 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 RS and the second RS in the first time window and the second time window, respectively; 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 and receive the first RS and the second RS in the first time window and the second time window.

[0339] Example 5

[0340] 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 F58 are respectively optional.

[0341] For the second node U1, in step S5101, RS is sent in the third RS resource; in step S5102, the first reporting configuration is sent; in step S5103, the third signaling is sent; in step S511, the first signaling is sent; in step S5104, HARQ-ACK is received in the first channel; in step S512, the second signaling is sent; in step S513, the first RS and the second RS are sent in the first time window and the second time window respectively; in step S5105, (K-2) RS are sent in (K-2) time windows respectively; in step S5106, a signal is sent in the first CSI resource; and in step S5107, the first CSI is received.

[0342] For the first node U2, in step S5201, RS is received in the third RS resource; in step S5202, the first reporting configuration is received; in step S5203, the third signaling is received; in step S521, the first signaling is received; in step S5204, HARQ-ACK is sent in the first channel; in step S522, the second signaling is received; in step S523, the first RS and the second RS are received in the first time window and the second time window respectively; in step S5205, (K-2) RS are received in (K-2) time windows respectively; in step S5206, interference measurement is performed in the first CSI resource; and in step S5207, the first CSI is sent.

[0343] In Example 5, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers the first RS and the second RS; the first RS and the second RS are transmitted in the first RS resource and the second RS resource respectively, and the first time window and the second time window are orthogonal to each other; the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node U2 uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node U2 uses the first TCI state to receive the second RS in the second time window.

[0344] As an embodiment, the first node U2 is the first node in this application.

[0345] As an embodiment, the second node U1 is the second node in this application.

[0346] 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.

[0347] 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.

[0348] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between user equipments.

[0349] As an embodiment, the second node U1 is a base station maintaining a service cell of the first node U2.

[0350] As an embodiment, the first signaling is transmitted in PDCCH.

[0351] As an embodiment, the second signaling is transmitted in PDCCH.

[0352] As an embodiment, the second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

[0353] As an embodiment, the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; and the K RSs are sent in K RS resources respectively.

[0354] 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:

[0355] Receive (K-2) RSs in (K-2) time windows respectively;

[0356] Among them, the K RSs are transmitted in K time windows respectively, the (K-2) time windows are time windows among the K time windows excluding the first time window and the second time window, and the (K-2) RSs are RSs among the K RSs excluding the first RS and the second RS.

[0357] 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:

[0358] The (K-2) RSs are sent respectively in the (K-2) time windows.

[0359] As an example, Figure 5 The steps in box F52 exist; the first reporting configuration indicates the first RS resource and the second RS resource; wherein the second signaling triggers a report of the first reporting configuration.

[0360] As an embodiment, the first reporting configuration is transmitted on PDSCH.

[0361] 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:

[0362] receiving an RS in a third RS resource;

[0363] When the first time window is earlier than the first time slot, the second RS and the third RS resources received in the second time window are quasi-co-located.

[0364] 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:

[0365] The RS is sent in the third RS resource.

[0366] As an embodiment, the first node receives RS in the third RS resource before receiving the first reporting configuration.

[0367] As an embodiment, the first node receives RS in the third RS resource after receiving the first reporting configuration.

[0368] 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:

[0369] receiving a third signaling before receiving the first signaling, wherein the third signaling indicates a second TCI state and the third signaling is a DCI;

[0370] The second TCI state is different from the first TCI state; when the first time window is earlier than the first time slot, the first node uses the second TCI state to receive the second RS in the second time window.

[0371] 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:

[0372] The third signaling is sent before the first signaling is sent.

[0373] 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:

[0374] Sending HARQ-ACK in the first channel;

[0375] 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.

[0376] As an embodiment, the HARQ-ACK sent in the first channel is a HARQ-ACK for the first signaling.

[0377] As an embodiment, the HARQ-ACK sent in the first channel is a HARQ-ACK for the PDSCH scheduled by the first signaling.

[0378] 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:

[0379] receiving a HARQ-ACK in the first channel;

[0380] As an example, Figure 5 The step in box F58 in exists; the first CSI relies on measurements of the first RS resources and the second RS resources.

[0381] As an embodiment, the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

[0382] 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:

[0383] Perform interference measurement in the first CSI resource.

[0384] 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:

[0385] Send a signal in the first CSI resource.

[0386] As an example, Figure 5 The steps in block F57 in the appendix exist. Figure 5 The step in box F56 does not exist.

[0387] As an example, Figure 5 Both the steps in box F57 and box F56 exist.

[0388] As an embodiment, the first CSI resource is a CSI-IM (Channel State Information-Interference Measurement) resource.

[0389] As an embodiment, the first CSI resource is an NZP CSI-RS resource, and the signal sent in the first CSI resource is RS.

[0390] As an embodiment, the first node performs interference measurement in the first CSI resource before receiving the first RS and the second RS.

[0391] As an embodiment, the first node performs interference measurement in the first CSI resource after receiving the first RS and the second RS.

[0392] As an embodiment, the second signaling indicates a first trigger state, and the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

[0393] 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:

[0394] 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.

[0395] 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.

[0396] 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 decomposition, averaging, filtering, quantization, interpolation or table lookup.

[0397] 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 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.

[0398] Example 6

[0399] Embodiment 6 illustrates a schematic diagram of a second signaling, a first time window, and a second time window according to an embodiment of the present application; Figure 6 In Embodiment 6, the second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable.

[0400] As an embodiment, n is a non-negative integer.

[0401] As an embodiment, n is a positive integer.

[0402] As an embodiment, the n is not greater than N slot , the N slot is the number of time slots per subframe.

[0403] As an embodiment, the n is not greater than N slot , the N slot is the number of time slots per frame.

[0404] As an embodiment, the n is not greater than N slot , the N slotIt is the number of time slots per subframe for the first subcarrier spacing configuration.

[0405] As an embodiment, the n is not greater than N slot , the N slot is the number of time slots per frame configured for the first subcarrier spacing.

[0406] As an embodiment, the first subcarrier spacing configuration is the subcarrier spacing configuration of the second signaling.

[0407] As an embodiment, the first subcarrier spacing configuration is the subcarrier spacing configuration of the first RS and the second RS.

[0408] As an embodiment, the first offset is configurable or fixed to 0.

[0409] As an embodiment, the first offset is configurable.

[0410] As an embodiment, the first offset is an RRC (Radio Resource Control) signaling configuration.

[0411] As an embodiment, the first offset is configured by the base station to the first node.

[0412] As an embodiment, the first offset is fixed to 0.

[0413] As an embodiment, the second offset is an RRC signaling configuration.

[0414] As an embodiment, the second offset is configured by the base station to the first node.

[0415] As an embodiment, the second offset is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0416] As an embodiment, the second offset is configured by NZP-CSI-RS-ResourceIE that configures the second RS resource.

[0417] As an embodiment, (the second offset - 1) is an RRC signaling configuration.

[0418] As an embodiment, (the second offset-1) is configured by the base station to the first node.

[0419] As an embodiment, (the second offset - 1) is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0420] As an embodiment, (the second offset - 1) is configured by the NZP-CSI-RS-Resource IE that configures the second RS resource.

[0421] Example 7

[0422] Embodiment 7 illustrates a schematic diagram of a first RS, a second RS, and K RSs according to an embodiment of the present application; Figure 7 As shown. In Embodiment 7, the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; the K RSs are respectively sent in K RS resources. In Embodiment 7, the K RSs are respectively represented by RS#0, RS#1, ..., RS#(K-1).

[0423] As an embodiment, each of the K RS resources is a CSI-RS resource.

[0424] As an embodiment, each of the K RS resources is a NZP CSI-RS resource.

[0425] As an embodiment, each of the K RS resources is configured by an NZP-CSI-RS-ResourceIE.

[0426] As an embodiment, the K RS resources are respectively configured by K different NZP-CSI-RS-Resource IEs.

[0427] As an embodiment, each of the K RS resources is identified by an NZP-CSI-RS-ResourceId.

[0428] As an embodiment, the K RS resources are respectively identified by K different NZP-CSI-RS-ResourceIds.

[0429] As an embodiment, the K RS resources all belong to the first RS resource set.

[0430] As an embodiment, the first RS resource set consists of the K RS resources.

[0431] As an embodiment, the first RS resource and the second RS resource are respectively one RS resource among the K RS resources.

[0432] As an embodiment, the second RS is any one of the K RSs except the first RS.

[0433] As an embodiment, the second signaling triggers the first node to receive the K RSs.

[0434] As an embodiment, the first node receives the K RSs in K time windows respectively.

[0435] As an embodiment, the second signaling triggers the first node to receive the K RSs in the K time windows respectively.

[0436] As an embodiment, the second signaling triggers one reception of RS in each of the K RS resources.

[0437] As an embodiment, the second signaling triggers the first node to receive RS in each of the K RS resources.

[0438] As an embodiment, the K time windows are respectively a transmission opportunity for the K RS resources.

[0439] As an embodiment, the K time windows are respectively a transmission opportunity of the K RS resources triggered by the second signaling.

[0440] As an embodiment, each of the K RSs is an RS transmitted in an RS resource corresponding to the RS and in a time window corresponding to the RS.

[0441] As an embodiment, each of the K time windows includes one or more symbols.

[0442] As an embodiment, each of the K time windows includes one or more consecutive symbols.

[0443] As an embodiment, the K time windows are mutually orthogonal in pairs.

[0444] As an embodiment, any time window among the K time windows belongs to a time slot.

[0445] As an embodiment, the K time windows belong to K different time slots respectively.

[0446] As an embodiment, the number of symbols included in any two time windows among the K time windows is equal.

[0447] As an embodiment, the first time window is the earliest time window among the K time windows.

[0448] As an embodiment, the second time window is a time window among the K time windows that is different from the first time window.

[0449] As an embodiment, the second time window is any time window among the K time windows that is different from the first time window.

[0450] As an embodiment, the K time windows are arranged in sequence from early to late in the time domain.

[0451] As an embodiment, the K time windows depend on the second signaling.

[0452] As an embodiment, the second signaling is transmitted in slot n, and the earliest time window among the K time windows belongs to slot (n+first offset); the first offset is configurable or fixed to 0; the first offset is a non-negative integer.

[0453] As an embodiment, the second signaling is transmitted in slot n, and the i-th time window among the K time windows belongs to slot (n+first offset+(i-1)×sixth offset); the first offset is configurable or fixed to 0, the first offset is a non-negative integer, the sixth offset is configurable, and the sixth offset is a non-negative integer; i is any positive integer not greater than K.

[0454] As an embodiment, the benefits of the above method include simplifying signaling configuration and reducing signaling overhead.

[0455] 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.

[0456] As an embodiment, the sixth offset is a positive integer.

[0457] As an embodiment, the sixth offset is an RRC signaling configuration.

[0458] As an embodiment, the sixth offset is configured by the base station to the first node.

[0459] As an embodiment, the sixth offset is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0460] As an embodiment, the sixth offset is configured by the NZP-CSI-RS-ResourceIE that configures the second RS resource.

[0461] As an embodiment, (the sixth offset -1) is an RRC signaling configuration.

[0462] As an embodiment, (the sixth offset - 1) is configured by the base station to the first node.

[0463] As an embodiment, (the sixth offset - 1) is configured by the NZP-CSI-RS-ResourceSet IE that configures the first RS resource set.

[0464] As an embodiment, (the sixth offset - 1) is configured by the NZP-CSI-RS-Resource IE that configures the second RS resource.

[0465] As an embodiment, the second time window is the jth time window among the K time windows, and the second offset is equal to (j-1)×the sixth offset; and j is a positive integer not greater than K and greater than 1.

[0466] As an embodiment, the benefits of the above method include simplifying signaling configuration and reducing signaling overhead.

[0467] 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.

[0468] As an embodiment, the i-th time window among the K time windows is earlier than the (i+1)-th time window among the K time windows in the time domain, and i is any positive integer less than K.

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

[0470] As an embodiment, the first node uses the first TCI state to receive the K RSs respectively in the K time windows, or the first node does not use the first TCI state to receive the corresponding RS in any time window of the K time windows.

[0471] As an embodiment, the benefits of the above method include: ensuring the accuracy of channel measurement based on the K RSs, improving the accuracy of CSI reporting, and thus improving the overall system performance.

[0472] As an embodiment, each of the K RS resources includes at least one port, and any two of the K RS resources include an equal number of ports.

[0473] As an embodiment, ports with the same index of any two RS resources among the K RS resources are the same ports.

[0474] 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.

[0475] As an embodiment, the K RS resources are configured with the same starting PRB and PRB number.

[0476] As an embodiment, the K RS resources are configured with the same cdm type.

[0477] As an embodiment, the K RS resources are configured with the same density.

[0478] 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.

[0479] As an embodiment, the K RS resources occupy the same RE in one time-frequency unit.

[0480] As an embodiment, the K RS resources have the same pattern.

[0481] As an embodiment, the K RS resources are configured in the same cell.

[0482] As an embodiment, the K RS resources are configured in the same BWP.

[0483] As an embodiment, the K RS resources are configured in the same carrier.

[0484] Example 8

[0485] Embodiment 8 illustrates a schematic diagram of a first reporting configuration according to an embodiment of the present application; Figure 8 In Embodiment 8, the second signaling triggers a report of the first reporting configuration, and the first reporting configuration indicates the first RS resource and the second RS resource.

[0486] As an embodiment, the second signaling triggers the first RS and the second RS by triggering a report of the first reporting configuration.

[0487] As an embodiment, in the first reporting configuration, the first RS resources and the second RS resources are configured in the same cell.

[0488] As an embodiment, the first reporting configuration is a CSI reporting configuration.

[0489] As an embodiment, the first reporting configuration is a CSI Reporting setting.

[0490] As an embodiment, the first reporting configuration is a CSI-ReportConfig IE.

[0491] As an embodiment, the first reporting configuration is a CSIReporting setting configured by a CSI-ReportConfig IE.

[0492] As an embodiment, the first reporting configuration is identified by a CSI-ReportConfigId.

[0493] As an embodiment, the first reporting configuration is carried by RRC signaling.

[0494] As an embodiment, the first reporting configuration is carried by at least one RRC IE.

[0495] As an embodiment, the first reporting configuration is configured by at least one RRC IE.

[0496] As an embodiment, the first reporting configuration is an RRC IE (Information Element).

[0497] As an embodiment, the first reporting configuration is carried by a CSI-ReportConfig IE.

[0498] As an embodiment, the first reporting configuration is configured by a CSI-ReportConfig IE.

[0499] As an embodiment, the first reporting configuration is carried by the CSI-MeasConfig IE.

[0500] As an embodiment, the first reporting configuration is configured by CSI-MeasConfig IE.

[0501] As an embodiment, the first reporting configuration is periodic.

[0502] As an embodiment, the first reporting configuration is semi-persistent.

[0503] As an embodiment, the first reporting configuration is aperiodic.

[0504] As an embodiment, the first reporting configuration indicates that both the first RS resources and the second RS resources are used for channel measurement.

[0505] As an embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates the first RS resource and the second RS resource.

[0506] As an embodiment, the first reporting configuration indicates the first RS resource set.

[0507] As an embodiment, the first reporting configuration indicates the first RS resource and the second RS resource by indicating the first RS resource set.

[0508] As an embodiment, the first reporting configuration indicates that the first RS resource set is used for channel measurement.

[0509] As an embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates the first RS resource set.

[0510] As an embodiment, the first reporting configuration indicates the K RS resources.

[0511] As an embodiment, the first reporting configuration indicates that the K RS resources are all used for channel measurement.

[0512] As an embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates the K RS resources.

[0513] As an embodiment, the first reporting configuration indicates the K RS resources by indicating the first RS resource set.

[0514] As an embodiment, the first reporting configuration indicates multiple RS resource sets, the first RS resource set is one of the multiple RS resource sets, and RRC signaling is used to indicate the first RS resource set from the multiple RS resource sets.

[0515] As an embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates the multiple RS resource sets.

[0516] As an embodiment, the first reporting configuration indicates that the multiple RS resource sets are used for channel measurement.

[0517] As an embodiment, the one report of the first reporting configuration is a CSI (Channel state information) report.

[0518] As an embodiment, the one reporting of the first reporting configuration is a CSI reporting instance.

[0519] As an embodiment, the one report of the first reporting configuration is a CSI report generated according to the first reporting configuration.

[0520] As an embodiment, the second signaling triggers the first node to perform a CSI report according to the first reporting configuration.

[0521] As an embodiment, the first node obtains the channel measurement for calculating the first reporting configuration based on the first RS resource and the second RS resource.

[0522] As an embodiment, the first reporting configuration indicates (one or more) RS resources used to obtain the channel measurement used to calculate the first reporting configuration.

[0523] As an embodiment, the first reporting configuration indicates (one or more) CSI-RS resources and / or (one or more) CSI-IM (Channel State Information-Interference Measurement) resources used to obtain the interference measurement for calculating the first reporting configuration.

[0524] As an embodiment, the first reporting configuration indicates a reporting quantity (report quantity) of the first reporting configuration reported at one time.

[0525] As an embodiment, the first reporting configuration 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).

[0526] As an embodiment, the first reporting configuration indicates the frequency domain resources involved in (relate to) the first reporting of the first reporting configuration.

[0527] As an embodiment, the first reporting configuration indicates the PUCCH resources used to transmit the first reporting configuration.

[0528] Example 9

[0529] Embodiment 9 illustrates a schematic diagram of a first CSI according to an embodiment of the present application; Fig. 9 In embodiment 9, the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource.

[0530] As an embodiment, the first CSI is the first reporting configuration.

[0531] As an embodiment, the first CSI is the first reporting configuration triggered by the second signaling.

[0532] As an embodiment, the first CSI is the CSI reported in the first reporting of the first reporting configuration.

[0533] As an embodiment, the second signaling triggers the first CSI.

[0534] As an embodiment, the second signaling triggers the first node to report the first CSI.

[0535] As an embodiment, the second signaling triggers the first RS and the second RS by triggering the first CSI.

[0536] As an embodiment, the first CSI relies on channel measurement obtained based on the first RS and the second RS.

[0537] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the first RS resources and the second RS resources.

[0538] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the first RS resources and the second RS resources.

[0539] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the first RS and the second RS.

[0540] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the first RS and the second RS.

[0541] As an embodiment, the first node obtains the channel measurement for calculating the first CSI based only on the transmission opportunities of the first RS resource in the first time window and the transmission opportunities of the second RS resource in the second time window.

[0542] As an embodiment, in addition to the first time window and the second time window, the first node also obtains channel measurement for calculating the first CSI based on other transmission opportunities of the first RS resource and other transmission opportunities of the second RS resource.

[0543] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on at least one transmission opportunity of the first RS resource different from the first time window and at least one transmission opportunity of the second RS resource different from the second time window.

[0544] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the K RS resources.

[0545] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the K RS resources.

[0546] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on the K RSs.

[0547] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the K RSs.

[0548] 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 in the K time windows respectively.

[0549] As an embodiment, the first node obtains channel measurement for calculating the first CSI based on at least one transmission opportunity of the K RS resources that is different from the K time windows.

[0550] As an embodiment, in addition to the K time windows, the first node also obtains channel measurements for calculating the first CSI based on other transmission opportunities of the K RS resources.

[0551] As an embodiment, the frequency domain resource to which the first CSI relates is 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.

[0552] As an embodiment, the first subband number is configured by a higher layer parameter 'reportFreqConfiguration'.

[0553] As an embodiment, the first subband or subbands are configured by a higher layer parameter 'csi-ReportingBand'.

[0554] As an embodiment, the first CSI includes CSI reported for each subband of several subbands of the first subband.

[0555] As an embodiment, a subband includes one or more PRBs that are continuous in the frequency domain.

[0556] 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.

[0557] 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.

[0558] 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.

[0559] As an embodiment, P1 is a positive integer multiple of 4.

[0560] As an embodiment, the P1 is indicated by higher layer signaling.

[0561] As an embodiment, the P1 is related to the number of PRBs included in the BWP.

[0562] 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) mod P1 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.

[0563] As an embodiment, the subcarrier spacing corresponding to a PRB or a subband is fixed.

[0564] As an embodiment, the subcarrier spacing corresponding to a PRB or a subband varies with the frequency range to which it belongs.

[0565] As an embodiment, the first CSI is for multiple time windows; the multiple time windows are mutually orthogonal in pairs.

[0566] As an embodiment, the first CSI includes channel information for the multiple time windows.

[0567] As an embodiment, the first CSI carries channel information for the multiple time windows.

[0568] As an embodiment, the first CSI includes precoding information for the multiple time windows.

[0569] As an embodiment, the first CSI carries precoding information for the multiple time windows.

[0570] As an embodiment, the first CSI carries precoding matrices for the multiple time windows.

[0571] As an embodiment, the first CSI carries PMIs for the multiple time windows.

[0572] As an embodiment, the first CSI includes PMIs for the multiple time windows.

[0573] As an embodiment, the first CSI is used to determine a precoding matrix for the multiple time windows.

[0574] As an embodiment, the first CSI indicates a precoding matrix for the multiple time windows.

[0575] As an embodiment, the multiple time windows are reporting windows of the first CSI.

[0576] As an embodiment, the first CSI is only for one time window.

[0577] As an embodiment, the first CSI carries the PMI for only one time window.

[0578] As an embodiment, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the first reporting configuration.

[0579] As an embodiment, the first node obtains channel measurement for calculating the CSI of at least one CSI reporting configuration based on the first RS resources and the second RS resources; only when there is a CSI reporting configuration in the at least one CSI reporting configuration and the number of time windows for a CSI reporting is greater than 1, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0580] As a sub-embodiment of the above embodiment, the first reporting configuration is one of the at least one CSI reporting configuration.

[0581] As an embodiment, only when the number of time windows targeted by a single report configured by the first report is greater than 1, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0582] As an embodiment, the first CSI is a single report of the first reporting configuration; only when the first reporting configuration indicates that the first CSI carries PMI for multiple time windows, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0583] As a sub-embodiment of the above embodiment, the second signaling triggers the first CSI.

[0584] As an embodiment, the benefits of the methods in the above three embodiments include: determining whether the first TCI state is used to receive the second RS according to actual needs, thereby improving the CSI reporting accuracy.

[0585] As an embodiment, the benefits of the above method include: having good backward compatibility.

[0586] As an embodiment, in the above method, 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 UE, and can also be used to provide channel measurement for traditional CSI reporting.

[0587] As an embodiment, the benefits of the above method include: more efficient signaling configuration and saving of signaling overhead.

[0588] As an embodiment, the number of time windows for which one report of the first reporting configuration is greater than 1 means that one report of the first reporting configuration carries PMIs for more than 1 time window.

[0589] As an embodiment, the number of time windows targeted by a single report of the first reporting configuration is greater than 1, which means that the PMI carried by a single report of the first reporting configuration is used to calculate greater than 1 matrix sets, and the greater than 1 matrix sets respectively include precoding information for greater than 1 time windows.

[0590] As an embodiment, the number of time windows targeted by a single report of the first reporting configuration is greater than 1, which means that: the first type of parameter indicated by the first reporting configuration is a positive integer greater than 1; the first type of parameter is the number of time windows targeted by a single report of the first reporting configuration.

[0591] As an embodiment, the time windows greater than one are orthogonal to each other.

[0592] As an embodiment, each matrix in the set of more than one matrices includes one or more matrices.

[0593] As an embodiment, the first CSI carrying PMI for multiple time windows means that the PMI carried by the first CSI is used to calculate multiple matrix sets, and the multiple matrix sets respectively include precoding information for the multiple time windows.

[0594] As an embodiment, the first reporting configuration indicating that the first CSI carries PMI for multiple time windows means that: the first type of parameter indicated by the first reporting configuration is a positive integer greater than 1; and the number of time windows in the multiple time windows is equal to the first type of parameter.

[0595] As a sub-embodiment of the above embodiment, the first type of parameter is the number of time windows for which the first reporting configuration reports once.

[0596] As an embodiment, when the number of time windows for which the first reporting configuration reports once is equal to 1, the first node does not use the first TCI state to receive the second RS in the second time window.

[0597] As a sub-embodiment of the above embodiment, no matter whether the first time slot is earlier than the first time window, the first node does not use the first TCI state to receive the second RS in the second time window.

[0598] As an embodiment, when the first reporting configuration indicates that the first CSI carries PMI for only one time window, the first node does not use the first TCI state to receive the second RS in the second time window.

[0599] As a sub-embodiment of the above embodiment, no matter whether the first time slot is earlier than the first time window, the first node does not use the first TCI state to receive the second RS in the second time window.

[0600] As an embodiment, when the first node does not use the first TCI state to receive the second RS in the second time window, the first node uses the second TCI state to receive the second RS in the second time window.

[0601] As an embodiment, when the first node does not use the first TCI state to receive the second RS in the second time window, the second RS and the third RS resources received in the second time window are quasi-co-located.

[0602] Example 10

[0603] Embodiment 10 illustrates a schematic diagram of a first CSI according to an embodiment of the present application; Fig.10 In embodiment 10, a plurality of matrix sets depend on the first CSI, and any matrix set among the plurality of matrix sets includes one or more matrices.

[0604] As an embodiment, any two matrix sets among the multiple matrix sets include an equal number of matrices.

[0605] As an embodiment, there are two matrix sets among the multiple matrix sets that include unequal numbers of matrices.

[0606] As an embodiment, the first CSI is used to determine the multiple matrix sets.

[0607] As an embodiment, the first CSI includes the multiple matrix sets.

[0608] As an embodiment, the first CSI indicates the multiple matrix sets.

[0609] As an embodiment, the first CSI includes information used to calculate the multiple matrix sets.

[0610] As an embodiment, a target receiver of the first CSI can obtain the multiple matrix sets from the first CSI.

[0611] As an embodiment, a target receiver of the first CSI can unambiguously obtain the multiple matrix sets from the first CSI.

[0612] As an embodiment, the first node can obtain the multiple matrix sets from the first CSI.

[0613] As an embodiment, the first node can unambiguously obtain the multiple matrix sets from the first CSI.

[0614] As an embodiment, the target receiver of the first CSI and the first node can obtain the same set of multiple matrices from the first CSI.

[0615] As an embodiment, the first CSI includes at least one vector and at least one coefficient, and the multiple matrix sets are obtained by performing mathematical operations on the at least one vector and the at least one coefficient.

[0616] As an embodiment, the multiple matrix sets are carried by PMI.

[0617] As an embodiment, the multiple matrix sets are carried by the PMI in the first CSI.

[0618] As an embodiment, the multiple matrix sets are generated by PMI.

[0619] As an embodiment, the multiple matrix sets are generated by PMI in the first CSI.

[0620] As an embodiment, the first CSI includes a PMI, the PMI included in the first CSI includes at least one vector and at least one coefficient, and the multiple matrix sets are obtained by performing mathematical operations on the at least one vector and the at least one coefficient.

[0621] As an embodiment, a target receiver of the first CSI can obtain the multiple matrix sets from the PMI included in the first CSI.

[0622] As an embodiment, the target receiver of the first CSI can unambiguously obtain the multiple matrix sets from the PMI included in the first CSI.

[0623] As an embodiment, the first CSI includes multiple PMIs, and the multiple PMIs respectively carry the multiple matrix sets.

[0624] As an embodiment, the first CSI includes multiple PMIs, and the multiple matrix sets are generated by the multiple PMIs respectively.

[0625] As an embodiment, each of the multiple PMIs includes at least one vector and at least one coefficient, and the at least one vector and the at least one coefficient included in each of the multiple PMIs are used to generate a corresponding matrix set in the multiple matrix sets.

[0626] As an embodiment, the target receiver of the first CSI can unambiguously obtain the multiple matrix sets respectively from the multiple PMIs.

[0627] As an embodiment, the first node obtains channel measurements for calculating the multiple matrix sets based on the first RS resources and the second RS resources.

[0628] As an embodiment, the first node obtains channel measurement for calculating PMI used to generate the multiple matrix sets based on the first RS resources and the second RS resources.

[0629] As an embodiment, any matrix in the multiple matrix sets is a precoding matrix.

[0630] As an embodiment, any matrix in the multiple matrix sets is used for precoding.

[0631] As an embodiment, any matrix in the multiple matrix sets includes precoding information.

[0632] As an embodiment, any matrix in the multiple matrix sets is a precoding matrix for a PRB group.

[0633] As an embodiment, different matrices in any matrix set among the multiple matrix sets are precoding matrices for different PRB groups.

[0634] As an embodiment, any matrix in the multiple matrix sets is used for precoding for a PRB group.

[0635] As an embodiment, different matrices in any matrix set among the multiple matrix sets are used for precoding for different PRB groups.

[0636] As an embodiment, any matrix in the multiple matrix sets includes precoding information for a PRB group.

[0637] As an embodiment, different matrices in any matrix set among the multiple matrix sets include precoding information for different PRB groups.

[0638] As an embodiment, the one PRB group includes all or part of the PRBs in one subband among several subbands of the first subband.

[0639] As an embodiment, any two matrices in the plurality of matrix sets have the same number of rows and columns.

[0640] As an embodiment, the number of matrices included in at least one matrix set among the multiple matrix sets depends on the number of the first subbands.

[0641] As an embodiment, the number of matrices included in each matrix set of the multiple matrix sets depends on the number of the first subbands.

[0642] As an embodiment, the number of matrices included in at least one matrix set among the multiple matrix sets is not greater than a first parameter multiplied by the first subband number, and the first parameter is configurable.

[0643] As an embodiment, the number of matrices included in each matrix set of the multiple matrix sets is not greater than a first parameter multiplied by the first subband number, and the first parameter is configurable.

[0644] As an embodiment, at least one matrix set among the multiple matrix sets includes a number of matrices that is equal to the first parameter multiplied by the first subband number.

[0645] As an embodiment, the number of matrices included in each matrix set of the multiple matrix sets is equal to the first parameter multiplied by the first subband number.

[0646] As an embodiment, the number of matrices included in at least one of the multiple matrix sets is equal to the product of the first parameter and the first subband number, or is equal to the product of the first parameter and the first subband number minus 1, or is equal to the product of the first parameter and the first subband number minus 2.

[0647] As an embodiment, the number of matrices included in each of the multiple matrix sets 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.

[0648] As an embodiment, the first parameter is a positive integer.

[0649] As an embodiment, the first parameter is equal to 1 or 2.

[0650] As an embodiment, the first parameter is configured by a higher layer parameter.

[0651] As an embodiment, the first parameter is configured by RRC signaling.

[0652] As an embodiment, the first parameter is configured by a higher layer parameter whose name includes 'numberOfPMI-SubbandsPerCQI-Subband'.

[0653] As an embodiment, for any matrix set in the multiple matrix sets, any two matrices in the matrix set have the same number of rows and columns.

[0654] As an embodiment, there is a matrix set among the multiple matrix sets, 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.

[0655] As an embodiment, the number of rows of each matrix in the plurality of matrix sets is equal to the first number of ports, and the first number of ports is a positive integer.

[0656] As an embodiment, the first port number is the number of CSI-RS ports.

[0657] As an embodiment, the first port number is the number of CSI-RS ports of the first RS resource.

[0658] 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.

[0659] As an embodiment, the N1 and the N2 are respectively configured by RRC signaling.

[0660] As an embodiment, the N1 and the N2 are configured by a higher layer parameter whose name includes 'n1-n2-codebookSubsetRestriction'.

[0661] As an embodiment, there is a matrix set among the multiple matrix sets, 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.

[0662] As an embodiment, the first rank number is a number of layers.

[0663] As an embodiment, the first rank number is a transmission rank.

[0664] As an embodiment, the layer refers to: a MIMO (Multiple Input Multiple Output) layer.

[0665] As an embodiment, the layer refers to: a transmission layer.

[0666] As an embodiment, the number of columns of each matrix in the plurality of matrix sets is equal to a first rank number, and the first rank number is a positive integer.

[0667] As an embodiment, the first CSI indicates the first rank number.

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

[0669] As an embodiment, the candidate for the first rank number is configured by RRC signaling.

[0670] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter whose name includes 'RI-Restriction'.

[0671] As an embodiment, the candidate for the first rank number is configured by a higher layer parameter whose name includes 'typeII-RI-Restriction'.

[0672] Embodiment 11

[0673] Embodiment 11 illustrates a schematic diagram of multiple matrix sets and multiple time windows according to an embodiment of the present application; Fig.11 As shown. In embodiment 11, multiple matrix sets depend on the first CSI, the multiple matrix sets are respectively for multiple time windows, and the multiple time windows are mutually orthogonal. In embodiment 11, the multiple matrix sets are respectively represented by matrix set #0, matrix set #1, ...; the multiple time windows are respectively represented by time window #0, time window #1, ....

[0674] As an embodiment, the problem to be solved by the present application includes: for multiple RS resources used to obtain channel measurement for calculating CSI for multiple time windows, how to determine whether each RS resource adopts the TCI state indicated by the DCI.

[0675] As an embodiment, the essence of the present application includes: the first CSI includes channel prediction information for the multiple time windows, and the channel measurement obtained based on the first RS resource and the second RS resource is used for channel prediction; the problems to be solved by the present application include: for multiple RS resources used for channel prediction, how to avoid prediction errors caused by different RS resources having different quasi-co-location relationships.

[0676] As an embodiment, in the above method, whether the first node uses the first TCI state to receive the second RS depends on the relationship between the first time slot and the first time window in the time domain, which solves the above problem.

[0677] As an embodiment, the benefits of the above method include: ensuring the accuracy of the channel measurement used to calculate the first CSI, ensuring the accuracy of CSI reporting, and improving system performance.

[0678] As an embodiment, the benefits of the above method include: by ensuring that the first RS and the second RS always have the same quasi-co-location relationship, the accuracy of channel prediction based on the first RS and the second RS is ensured, thereby improving system performance.

[0679] As an embodiment, the channel prediction information includes a predicted channel matrix and / or a precoding matrix.

[0680] As an embodiment, the number of matrix sets in the multiple matrix sets is equal to the number of time windows in the multiple time windows.

[0681] As an embodiment, the multiple matrix sets respectively include channel information for the multiple time windows.

[0682] As an embodiment, the multiple matrix sets respectively carry the channel information of the multiple time windows.

[0683] As an embodiment, the multiple matrix sets respectively include channel information predicted for the multiple time windows.

[0684] As an embodiment, the multiple matrix sets are respectively used to determine precoding for the multiple time windows.

[0685] As an embodiment, the multiple matrix sets respectively include precoding information for the multiple time windows.

[0686] As an embodiment, the multiple matrix sets respectively include precoding information predicted for the multiple time windows.

[0687] As an embodiment, the multiple matrix sets respectively indicate precoding for the multiple time windows.

[0688] As an embodiment, the multiple matrix sets are used for precoding of the multiple time windows respectively.

[0689] As an embodiment, the multiple matrix sets respectively include precoding matrices for the multiple time windows.

[0690] As an embodiment, the multiple matrix sets respectively indicate precoding matrices for the multiple time windows.

[0691] As an embodiment, the multiple matrix sets are sets of precoding matrices for the multiple time windows respectively.

[0692] As an embodiment, the multiple matrix sets respectively include precoding matrices predicted for the multiple time windows.

[0693] As an embodiment, the effective time of the multiple matrix sets are respectively the multiple time windows.

[0694] As an embodiment, the reference resources of the multiple matrix sets are respectively the multiple time windows in the time domain.

[0695] As an embodiment, any time window among the multiple time windows includes at least one time slot.

[0696] As an embodiment, any time window among the multiple time windows includes one or more continuous time slots.

[0697] As an embodiment, the lengths of any two time windows among the multiple time windows are the same.

[0698] As an embodiment, any two time windows among the multiple time windows include the same number of time slots.

[0699] As an embodiment, the number of matrix sets in the multiple matrix sets is configured by RRC signaling.

[0700] As an embodiment, the number of matrix sets in the multiple matrix sets is configured by the first reporting configuration.

[0701] As an embodiment, the number of matrix sets in the multiple matrix sets is configured by the first trigger state.

[0702] As an embodiment, the number of time windows in the multiple time windows is configured by RRC signaling.

[0703] As an embodiment, the number of time slots included in any time window among the multiple time windows is configured by RRC signaling.

[0704] As an embodiment, the number of time slots included in any time window of the multiple time windows is configured by the first reporting configuration.

[0705] As an embodiment, the number of time slots included in any time window of the multiple time windows is configured by the first trigger state.

[0706] As an embodiment, the number of time slots included in any time window of the multiple time windows is configured by the NZP-CSI-RS-ResourceSet that configures the first RS resource set.

[0707] As an embodiment, any time window among the multiple time windows is no earlier than the time slot occupied by the first CSI.

[0708] As an embodiment, at least one time window among the multiple time windows is no earlier than the time slot occupied by the first CSI.

[0709] As an embodiment, any time window among the multiple time windows is no earlier than the latest time slot occupied by the first CSI.

[0710] As an embodiment, the offset between the earliest time slot in the earliest time window among the multiple time windows and the time slot occupied by the first CSI is configured by RRC signaling.

[0711] As an embodiment, the offset between the earliest time slot in the earliest time window among the multiple time windows and the time slot occupied by the first CSI is configured by the first reporting configuration.

[0712] As an embodiment, the offset between the earliest time slot in the earliest time window among the multiple time windows and the time slot occupied by the first CSI is configured by the first trigger state.

[0713] As an embodiment, any time window among the multiple time windows is not earlier than a CSI reference resource of the first CSI.

[0714] As an embodiment, the earliest time slot in the earliest time window among the multiple time windows is the time slot where the CSI reference resource of the first CSI is located.

[0715] As an embodiment, the definition of the CSI reference resource refers to 3GPP TS 38.214.

[0716] As an embodiment, the multiple time windows are continuous in the time domain.

[0717] 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 multiple time windows are two consecutive time slots.

[0718] As an embodiment, there is a matrix set among the multiple matrix sets, 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.

[0719] As an embodiment, for any matrix set in the multiple matrix sets, V columns of any matrix in the matrix set are precoding vectors of V layers, respectively, and V is the number of columns of the any matrix.

[0720] As an embodiment, there is one matrix set among the multiple matrix sets, 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.

[0721] As an embodiment, for any matrix set among the multiple matrix sets, 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.

[0722] As an embodiment, for any matrix set among the multiple matrix sets, the matrices in this matrix set are precoding matrices for the time window corresponding to this matrix set.

[0723] As an embodiment, for any matrix set among the multiple matrix sets, the N3 matrices included in this matrix set are precoding matrices for N3 PRB groups in 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 in 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.

[0724] As an embodiment, V is equal to the first rank number.

[0725] As an embodiment, the N3 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.

[0726] As an embodiment, each of the N3 PRB groups includes one or more consecutive PRBs.

[0727] As an embodiment, each of the N3 PRB groups belongs to a subband among several subbands of the first subbands.

[0728] As an example, each of the N3 PRB groups includes all or part of the PRBs in one sub - band among several sub - bands of the first sub - band.

[0729] As an example, each of the N3 PRB groups is composed of all or part of the PRBs in one sub - band among several sub - bands of the first sub - band.

[0730] As an example, except for the sub - bands located at the edge of the BWP, each of the other sub - bands among several sub - bands of the first sub - band includes the first parameter number of PRB groups among the N3 PRB groups.

[0731] As an example, 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.

[0732] As an example, 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 the number of PRBs included in its affiliated sub - band divided by the first parameter.

[0733] As an example, 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.

[0734] As an example, 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 sub - bands of the first sub - band.

[0735] As an example, when the first parameter is equal to 2, for each sub - band among the number of sub - bands of the first sub - band 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 the number of PRBs included in this sub - band, and P1 is a positive integer greater than 1.

[0736] As an example, when the first parameter is equal to 2 and the number of sub - bands of the first sub - band 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 s mod P1) PRBs and the last P1 / 2 PRBs in the first sub - band respectively form two PRB groups among the N3 PRB groups; P1 is a positive integer greater than 1, and Ns is the index of the starting PRB of the one BWP.

[0737] 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)mod P1>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.

[0738] As an embodiment, the PRBs in a sub-band are arranged in ascending order according to the PRB index (PRB number).

[0739] As an embodiment, the PRB index is n in TS 38.211. PRB .

[0740] 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.

[0741] As an embodiment, the subbands in a BWP are arranged in ascending order according to the PRB indexes of the included PRBs.

[0742] As an embodiment, the subbands in a BWP are arranged in order from low to high frequencies of the frequency domain resources occupied.

[0743] Example 12

[0744] Embodiment 12 illustrates a schematic diagram of a first CSI and a first CQI group according to an embodiment of the present application; Fig.12 In embodiment 12, a first CQI group depends on the first CSI, 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.

[0745] 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.

[0746] As an embodiment, the benefits of the above method include: saving signaling overhead.

[0747] 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.

[0748] As an embodiment, the first CQI group being dependent on the first CSI means that: the first CSI includes the first CQI group.

[0749] As an embodiment, the first CQI group being dependent on the first CSI means that: the first CSI indicates the first CQI group.

[0750] As an embodiment, each CQI in the first CQI group is calculated based on at least one matrix in the first matrix set.

[0751] As an embodiment, each CQI in the first CQI group is for the earliest time window among the multiple time windows.

[0752] As an embodiment, the first CQI group includes a wideband CQI.

[0753] As a sub-embodiment of the above embodiment, the wideband CQI in the first CQI group is calculated based on all matrices in the first matrix set.

[0754] As an embodiment, the first CQI group includes at least one sub-band CQI (sub-band CQI).

[0755] As a sub-embodiment of the above embodiment, each sub-band CQI in the first CQI group is calculated based on a matrix in the first matrix set.

[0756] 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.

[0757] 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.

[0758] 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.

[0759] 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.

[0760] As an embodiment, the first node assumes that the PDSCH occupies the earliest time window among the multiple time windows in the time domain, and calculates each CQI in the first CQI group based on this assumption.

[0761] As an embodiment, the first node calculates each CQI in the first CQI group based on the following assumptions:

[0762] A ratio between the PDSCH EPRE and the EPRE of the second RS resource is the first ratio;

[0763] A ratio between the PDSCH EPRE and the EPRE of the first RS resource is the first ratio;

[0764] The PDSCH occupies the earliest time window among the multiple time windows in the time domain.

[0765] 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 corresponding to the one CQI, the target code rate and the transmission block size and occupies the first time-frequency resource, it can be received with a transmission block error rate not exceeding a first threshold; the first time-frequency resource belongs to the earliest time window among the multiple time windows in the time domain, and the first threshold is a positive real number less than 1.

[0766] As a sub-embodiment of the above embodiment, the given CQI is any CQI in the first CQI group.

[0767] As a sub-embodiment of the above embodiment, the given CQI is calculated based on the first matrix set.

[0768] As a sub-embodiment of the above embodiment, the given CQI is a wideband CQI in the first CQI group, and the first time-frequency resource is defined as several sub-bands of the first sub-band in the frequency domain.

[0769] As a sub-embodiment of the above embodiment, the given CQI is a 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 a PRB group among the N3 PRB groups.

[0770] 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 PRB group is a PRB group corresponding to the given matrix.

[0771] As an embodiment, the first threshold is equal to 0.1 or 0.00001.

[0772] As an embodiment, the first CSI does not include CQIs other than the first CQI group.

[0773] As an embodiment, the benefits of the above method include: improving CSI reporting efficiency and reducing reporting overhead.

[0774] 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.

[0775] As a sub-embodiment of the above embodiment, the reference matrix set is a matrix set for the w-th time window among the multiple time windows among the multiple time windows, and w is equal to the number of time windows among the multiple time windows divided by 2 and then rounded up or down.

[0776] As a sub-embodiment of the above embodiment, the reference matrix set is a matrix set for a latest time window among the multiple time windows among the multiple matrix sets.

[0777] As an embodiment, each CQI in the second CQI group is for a reference time window in the multiple time windows.

[0778] As a sub-embodiment of the above embodiment, the reference time window is the w-th time window among the multiple time windows, and w is equal to the number of time windows among the multiple time windows divided by 2 and then rounded up or down.

[0779] As a sub-embodiment of the above embodiment, the reference time window is the latest time window among the multiple time windows.

[0780] As an embodiment, the benefits of the above method include: improving the reporting accuracy of CQI.

[0781] Embodiment 13

[0782] Embodiment 13 illustrates a schematic diagram of a first CSI, a first RS resource, a second RS resource and a first CSI resource according to an embodiment of the present application; Fig.13 In embodiment 13, the first CSI depends on a channel measurement obtained based on the first RS resource and the second RS resource, and depends on an interference measurement obtained based on the first CSI resource.

[0783] As an embodiment, the first CSI resource is an NZP CSI-RS resource.

[0784] As an embodiment, the first CSI resource is configured by an NZP-CSI-RS-Resource IE.

[0785] As an embodiment, the first CSI resource is identified by an NZP-CSI-RS-ResourceId.

[0786] As an embodiment, the first CSI resource is a CSI-IM resource.

[0787] As an embodiment, the first CSI resource is configured by a CSI-IM-Resource IE.

[0788] As an embodiment, the first CSI resource is identified by a CSI-IM-ResourceId.

[0789] As an embodiment, the first CSI resource, the first RS resource and the second RS resource are configured in the same cell.

[0790] As an embodiment, the first CSI resource, the first RS resource and the second RS resource are configured in the same BWP.

[0791] As an embodiment, the first CSI resource, the first RS resource and the second RS resource are configured on the same carrier.

[0792] As an embodiment, the first node obtains interference measurement used to calculate the first CSI based on the first CSI resource.

[0793] As an embodiment, the first node obtains interference measurement for calculating the first CSI based only on the first CSI resource.

[0794] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the first RS resource and the second RS resource, and obtains interference measurement for calculating the first CSI based only on the first CSI resource.

[0795] As an embodiment, the first node obtains channel measurement for calculating the first CSI based only on the K RS resources, and obtains interference measurement for calculating the first CSI based only on the first CSI resources.

[0796] As an embodiment, the first node obtains channel measurement for calculating the first CSI only based on each of the K RS resources, and obtains interference measurement for calculating the first CSI only based on the first CSI resource.

[0797] As an embodiment, the first reporting configuration indicates the first CSI resource.

[0798] As an embodiment, the first reporting configuration indicates that the first CSI resource is used for interference measurement.

[0799] As an embodiment, the 'csi-IM-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource.

[0800] As a sub-embodiment of the above embodiment, the first CSI resource is a CSI-IM resource.

[0801] As an embodiment, the 'nzp-CSI-RS-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource.

[0802] As a sub-embodiment of the above embodiment, the first CSI resource is an NZP CSI-RS resource.

[0803] As an embodiment, the first CSI resource belongs to a first CSI resource set.

[0804] As an embodiment, the above method has the following advantages: quantitative backward compatibility and minor changes to the standard.

[0805] As an embodiment, the first reporting configuration indicates the first CSI resource set.

[0806] As an embodiment, the first reporting configuration indicates that the first CSI resource set is used for interference measurement.

[0807] As an embodiment, the first reporting configuration indicates the first CSI resource by indicating the first CSI resource set.

[0808] 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.

[0809] As a sub-embodiment of the above embodiment, the first CSI resource set is configured by an NZP-CSI-RS-ResourceSet IE.

[0810] As a sub-embodiment of the above embodiment, the first CSI resource set is identified by an NZP-CSI-RS-ResourceSetId.

[0811] 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.

[0812] As an embodiment, the first CSI resource is a CSI-IM resource, and the first CSI resource set is a CSI-IM resource set.

[0813] As a sub-embodiment of the above embodiment, the first CSI resource set is configured by a CSI-IM-ResourceSet IE.

[0814] As a sub-embodiment of the above embodiment, the first CSI resource set is identified by a CSI-IM-ResourceSetId.

[0815] As a sub-embodiment of the above embodiment, the 'csi-IM-ResourcesForInterference' field of the first reporting configuration indicates the first CSI resource set.

[0816] As an embodiment, the first CSI resource set only includes the first CSI resource.

[0817] As an embodiment, the benefits of the above method include: simplifying signaling design and saving signaling overhead.

[0818] 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.

[0819] As an embodiment, the benefits of the above method include: improving configuration flexibility.

[0820] Embodiment 14

[0821] Embodiment 14 illustrates a schematic diagram of a first trigger state according to an embodiment of the present application; Fig.13 In embodiment 13, the second signaling indicates a first trigger state, the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi co-location information for the first RS resource and the second RS resource.

[0822] As an embodiment, the first trigger state is a CSI trigger state (CSI trigger state).

[0823] As an embodiment, the first trigger state is configured by higher-layer parameters.

[0824] As an embodiment, the first trigger state is configured by RRC signaling.

[0825] As an embodiment, the first trigger state is configured by a higher layer parameter 'CSI-AperiodicTriggerStateList'.

[0826] 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.

[0827] As an embodiment, the first trigger state includes all or part of the information in at least one RRC IE.

[0828] As an embodiment, the first trigger state includes all or part of the information in the CSI-AperiodicTriggerStateList IE.

[0829] As an embodiment, the first trigger state includes information in a CSI-AperiodicTriggerState in the CSI-AperiodicTriggerStateList IE.

[0830] As an embodiment, the second signaling triggers the first RS and the second RS by indicating the first trigger state.

[0831] As an embodiment, the second signaling triggers the first reporting configuration by indicating the first trigger state.

[0832] As an embodiment, the second signaling triggers the first CSI by indicating the first trigger state.

[0833] As an embodiment, the second signaling indicates a DCI domain 'CSIrequest' code point mapped to the first trigger state.

[0834] As an embodiment, MAC CE is used to map the first trigger state to a code point in the DCI field 'CSI request'.

[0835] As an embodiment, the second signaling directly indicates the first trigger state.

[0836] As an embodiment, the DCI field 'CSI request' in the second signaling indicates the first trigger state.

[0837] 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.

[0838] 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.

[0839] As an embodiment, the first node can obtain the first RS resource and the second RS resource from the first trigger state.

[0840] As an embodiment, the first node can undoubtedly know the first RS resource and the second RS resource from the first trigger state.

[0841] As an embodiment, the first node can obtain the first RS resource set from the first trigger state.

[0842] As an embodiment, the first node can undoubtedly learn about the first RS resource set from the first trigger state.

[0843] As an embodiment, the first trigger state indicates the first reporting configuration.

[0844] As an embodiment, the first node can obtain the first reporting configuration from the first trigger state.

[0845] As an embodiment, the first node can unambiguously learn the first reporting configuration from the first trigger state.

[0846] As an embodiment, the first trigger status indicates the CSI-ReportConfigId of the first reporting configuration.

[0847] As an embodiment, the first trigger state includes a CSI-AssociatedReportConfigInfo indicating a CSI-ReportConfigId of the first reporting configuration.

[0848] As an embodiment, the first trigger state indicates the first RS resource and the second RS resource by indicating the first reporting configuration.

[0849] As an embodiment, the first trigger state indicates the first RS resource set.

[0850] As an embodiment, the first trigger state indicates the first RS resource set by indicating the first reporting configuration.

[0851] As an embodiment, the first reporting configuration indicates multiple RS resource sets, and the first trigger state indicates the first RS resource set from the multiple RS resource sets.

[0852] As an embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates the multiple RS resource sets.

[0853] As an embodiment, the quasi co-location information refers to: TCI status.

[0854] As an embodiment, the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource, which means that the first trigger state does not include a first-class domain for the first RS resource and the second RS resource, and one of the first-class domains indicates at least one TCI state.

[0855] As an embodiment, the first type of domain is a 'qcl-info' domain.

[0856] 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.

[0857] 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.

[0858] 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.

[0859] As a sub-embodiment of the above embodiment, the 'resourcesForChannelMeasurement' field of the first reporting configuration indicates multiple RS resource sets, and the 'nzp-CSI-RS' field included in the first CSI-AssociatedReportConfigInfo indicates the first RS resource set from the multiple RS resource sets.

[0860] As a sub-embodiment of the above embodiment, the first trigger state does not configure quasi co-location information for the first RS resource and the second RS resource, which means that the first CSI-AssociatedReportConfigInfo does not include a 'qcl-info' field.

[0861] Embodiment 15

[0862] 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 embodiment, the processing device 1500 in the first node includes a first receiver 1501 and a first transmitter 1502, wherein the first transmitter 1502 is optional.

[0863] In embodiment 15, the first receiver 1501 receives the first signaling, receives the second signaling, and receives the first RS and the second RS in the first time window and the second time window, respectively.

[0864] In Example 15, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers the first RS and the second RS; the first RS and the second RS are transmitted in the first RS resource and the second RS resource respectively, and the first time window and the second time window are orthogonal to each other; the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

[0865] As an embodiment, only when the port with the same index as the first RS resource and the second RS resource is the same port, whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0866] As an embodiment, the second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

[0867] As an embodiment, the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; and the K RSs are sent in K RS resources respectively.

[0868] As a sub-embodiment of the above embodiment, the second RS is any one of the K RSs except the first RS.

[0869] As a sub-embodiment of the above embodiment, the first node receives the K RSs respectively in the K time windows with the same TCI state or the same quasi co-location relationship.

[0870] As an embodiment, the first receiver receives a first reporting configuration; the first reporting configuration indicates the first RS resource and the second RS resource; wherein the second signaling triggers a report of the first reporting configuration.

[0871] As an embodiment, the first transmitter 1502 sends a first CSI; wherein the first CSI depends on measurements of the first RS resources and the second RS resources.

[0872] As a sub-embodiment of the above embodiment, the second signaling triggers the first CSI.

[0873] As a sub-embodiment of the above embodiment, the first node obtains channel measurement for calculating the first CSI based on the first RS resources and the second RS resources.

[0874] As a sub-embodiment of the above embodiment, multiple matrix sets depend on the first CSI, any matrix in the multiple matrix sets is used for precoding, the multiple matrix sets are respectively for multiple time windows, the multiple time windows are mutually orthogonal, and any time window in the multiple time windows includes one or more continuous time slots.

[0875] As a preferred embodiment of the above sub-embodiment, any two time windows among the multiple time windows include the same number of time slots.

[0876] As a preferred embodiment of the above sub-embodiment, the multiple matrix sets respectively include precoding information for the multiple time windows.

[0877] As a preferred embodiment of the above sub-embodiment, the first CQI group depends on the first CSI, and the first CQI group includes one or more CQIs; each CQI in the first CQI group is calculated based on the first matrix set in the multiple matrix sets.

[0878] As an embodiment, the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

[0879] 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.

[0880] As an embodiment, the second signaling indicates a first trigger state, and the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

[0881] As a sub-embodiment of the above embodiment, the first trigger state indicates the first reporting configuration, and the first reporting configuration indicates the first RS resource and the second RS resource.

[0882] As a sub-embodiment of the above embodiment, the first trigger state indicates the first reporting configuration, the first reporting configuration indicates multiple RS resource sets, and the first trigger state indicates the first RS resource set from the multiple RS resource sets.

[0883] As an embodiment, the first receiver 1501 receives a third signaling before receiving the first signaling, the third signaling indicating a second TCI state, and the third signaling is a DCI; wherein the second TCI state is different from the first TCI state; when the first time window is earlier than the first time slot, the second TCI state is used to receive the second RS in the second time window.

[0884] As an embodiment, the first receiver 1501 receives RS in a third RS resource; wherein, when the first time window is earlier than the first time slot, the third RS resource is used for a quasi-co-location relationship of the second RS received in the second time window.

[0885] As an embodiment, the first receiver 1501 performs interference measurement in the first CSI resource.

[0886] As an embodiment, the second signaling is a DCI; 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; the first time window is earlier than the second time window, and the first TCI state is used starting from the first time slot.

[0887] As a sub-embodiment of the above embodiment, the first node receives the first RS in the first time window and receives the second RS in the second time window with the same TCI state or the same quasi co-location relationship.

[0888] 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.

[0889] As a sub-embodiment of the above embodiment, the first time window is a transmission opportunity for the first RS resource, and the second time window is a transmission opportunity for the second RS resource; the first time window and the second time window belong to different time slots respectively.

[0890] As an embodiment, the first node device is a user equipment.

[0891] As an embodiment, the first node device is a relay node device.

[0892] As an embodiment, the first receiver 1501 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0893] As an embodiment, the first transmitter 1502 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0894] Example 16

[0895] 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 embodiment, the processing device 1600 in the second node includes a second transmitter 1601 and a second receiver 1602, wherein the second receiver 1602 is optional.

[0896] In Embodiment 16, the second transmitter 1601 sends the first signaling, sends the second signaling, and sends the first RS and the second RS in the first time window and the second time window, respectively.

[0897] In Example 16, the first signaling indicates a first TCI state, and the first signaling is a DCI; the second signaling triggers the first RS and the second RS; the first RS and the second RS are transmitted in the first RS resource and the second RS resource respectively, and the first time window and the second time window are orthogonal to each other; the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

[0898] As an embodiment, only when the port with the same index as the first RS resource and the second RS resource is the same port, whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain.

[0899] As an embodiment, the second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

[0900] As an embodiment, the second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; and the K RSs are sent in K RS resources respectively.

[0901] As a sub-embodiment of the above embodiment, the second RS is any one of the K RSs except the first RS.

[0902] As a sub-embodiment of the above embodiment, the first node receives the K RSs respectively in the K time windows with the same TCI state or the same quasi co-location relationship.

[0903] As an embodiment, the second transmitter 1601 sends a first reporting configuration; the first reporting configuration indicates the first RS resource and the second RS resource; wherein the second signaling triggers a report of the first reporting configuration.

[0904] As an embodiment, the second receiver 1602 receives a first CSI; wherein the first CSI depends on measurements of the first RS resource and the second RS resource.

[0905] As a sub-embodiment of the above embodiment, the second signaling triggers the first CSI.

[0906] As a sub-embodiment of the above embodiment, the first node obtains channel measurement for calculating the first CSI based on the first RS resources and the second RS resources.

[0907] As a sub-embodiment of the above embodiment, multiple matrix sets depend on the first CSI, any matrix in the multiple matrix sets is used for precoding, the multiple matrix sets are respectively for multiple time windows, the multiple time windows are mutually orthogonal, and any time window in the multiple time windows includes one or more continuous time slots.

[0908] As a preferred embodiment of the above sub-embodiment, any two time windows among the multiple time windows include the same number of time slots.

[0909] As a preferred embodiment of the above sub-embodiment, the multiple matrix sets respectively include precoding information for the multiple time windows.

[0910] As a preferred embodiment of the above sub-embodiment, the first CQI group depends on the first CSI, and the first CQI group includes one or more CQIs; each CQI in the first CQI group is calculated based on the first matrix set in the multiple matrix sets.

[0911] As an embodiment, the first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

[0912] 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.

[0913] As an embodiment, the second signaling indicates a first trigger state, and the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

[0914] As a sub-embodiment of the above embodiment, the first trigger state indicates the first reporting configuration, and the first reporting configuration indicates the first RS resource and the second RS resource.

[0915] As a sub-embodiment of the above embodiment, the first trigger state indicates the first reporting configuration, the first reporting configuration indicates multiple RS resource sets, and the first trigger state indicates the first RS resource set from the multiple RS resource sets.

[0916] As an embodiment, the second signaling is a DCI; 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; the first time window is earlier than the second time window, and the first TCI state is used starting from the first time slot.

[0917] As a sub-embodiment of the above embodiment, the first node receives the first RS in the first time window and receives the second RS in the second time window with the same TCI state or the same quasi co-location relationship.

[0918] 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.

[0919] As a sub-embodiment of the above embodiment, the first time window is a transmission opportunity for the first RS resource, and the second time window is a transmission opportunity for the second RS resource; the first time window and the second time window belong to different time slots respectively.

[0920] As an embodiment, the second transmitter 1601 sends a third signaling before sending the first signaling, the third signaling indicating a second TCI state, and the third signaling is a DCI; wherein the second TCI state is different from the first TCI state; when the first time window is earlier than the first time slot, the target receiver of the first signaling uses the second TCI state to receive the second RS in the second time window.

[0921] As an embodiment, the second transmitter 1601 sends RS in a third RS resource; wherein, when the first time window is earlier than the first time slot, the second RS and the third RS resources received in the second time window are quasi-co-located.

[0922] As an embodiment, the second transmitter 1601 sends a signal in the first CSI resource.

[0923] As an embodiment, the second node is a base station.

[0924] As an embodiment, the second node is user equipment.

[0925] As an embodiment, the second node is a relay node.

[0926] As an embodiment, the second transmitter 1601 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0927] As an embodiment, the second receiver 1602 includes at least one of {antenna 420, receiver 418, receiving processor 470, multi-antenna transmitting processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0928] 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.

[0929] 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 receiver receives a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; The first receiver receives a second signaling, where the second signaling triggers a first RS and a second RS; The first receiver receives the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

2. The first node according to claim 1, characterized in that: The second signaling is transmitted in time slot n, the first time window belongs to time slot (n+first offset), and the second time window belongs to time slot (n+the first offset+second offset); the first offset is configurable or fixed, and the second offset is configurable; the first offset is a non-negative integer, and the second offset is a positive integer.

3. The first node according to claim 1 or 2, characterized in that: The second signaling triggers K RSs, where K is a positive integer greater than 2; the first RS is the earliest RS among the K RSs, and the second RS is an RS among the K RSs that is different from the first RS; the K RSs are sent in K RS resources respectively.

4. The first node according to any one of claims 1 to 3, characterized in that: The first receiver receives a first reporting configuration; the first reporting configuration indicates the first RS resource and the second RS resource; wherein the second signaling triggers a report of the first reporting configuration.

5. The first node according to any one of claims 1 to 4, characterized in that: include: A first transmitter, sending a first CSI; The first CSI depends on measurements of the first RS resources and the second RS resources.

6. The first node according to claim 5, characterized in that: The first CSI relies on channel measurement obtained based on the first RS resource and the second RS resource, and the first CSI relies on interference measurement obtained based on the first CSI resource.

7. The first node according to any one of claims 1 to 6, characterized in that: The second signaling indicates a first trigger state, and the first trigger state indicates the first RS resource and the second RS resource; the first trigger state does not configure quasi-co-location information for the first RS resource and the second RS resource.

8. A second node used for wireless communication, characterized in that: include: A second transmitter sends a first signaling, where the first signaling indicates a first TCI state, and the first signaling is a DCI; The second transmitter sends a second signaling, where the second signaling triggers the first RS and the second RS; The second transmitter sends the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

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 the first RS and the second RS; Receiving the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the first node uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the first node uses the first TCI state to receive the second RS in the second time window.

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 the first RS and the second RS; Sending the first RS and the second RS in a first time window and a second time window respectively, the first RS and the second RS are transmitted in a first RS resource and a second RS resource respectively, and the first time window and the second time window are orthogonal to each other; Among them, the first time slot depends on the first signaling; the second time window is no earlier than the first time slot, and whether the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window depends on the relationship between the first time slot and the first time window in the time domain; when the first time window is no earlier than the first time slot, the target receiver of the first signaling uses the first TCI state to receive the second RS in the second time window.

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