Method for channel state information reporting and apparatus therefor

Abstract

A wireless communication method for use in a wireless terminal is disclosed. The method includes receiving, from a wireless network node, a high-level signaling including channel state information (CSI) report configuration information, receiving, from the wireless network node, a first signaling including a CSI report trigger state indication or a pattern indication, and reporting the CSI according to the high-level signaling and the first signaling.

Description

Technical Field

[0001] This document relates generally to wireless communications, in particular fifth generation (5G) wireless communications, and specifically to channel state information (CSI) measurement and reporting. Background Art

[0002] With the development of wireless communication technology, the transmission rate, throughput, reliability and other performance indicators of wireless communication systems have been greatly improved by using high frequency bands, large bandwidths, multiple antennas and other technologies. At the same time, with the deployment of 5G technology, greenhouse gas emissions caused by 5G base stations (e.g., gNB) and large power consumption have become a serious problem. Therefore, network energy saving is not only important for green communication systems, but also for reducing operating expenses.

[0003] In order to reduce the power consumption of gNB, one potential method is to reduce the number of antennas or antenna ports. The change in the number of antennas or antenna ports may have an impact on CSI measurement or CSI reporting. Therefore, a new method associated with CSI measurement and / or CSI reporting for different numbers of antennas or antenna ports is needed. Summary of the invention

[0004] This document relates to methods, systems, and devices for wireless communications, and in particular, for channel state information (CSI) measurement and reporting.

[0005] The present disclosure relates to a wireless communication method for use in a wireless terminal. The method comprises:

[0006] receiving high-layer signaling including channel state information (CSI) report configuration information from a radio network node,

[0007] receiving a first signaling including a CSI report triggering state indication or a pattern indication from a radio network node, and

[0008] The CSI is reported according to the high-layer signaling and the first signaling.

[0009] Various embodiments may preferably achieve the following features:

[0010] Preferably, the CSI report configuration information includes at least one of the following: CSI report configuration, CSI-RS resource configuration, or trigger status list.

[0011] Preferably, the trigger state list includes trigger states associated with CSI report configurations, and the time domain behaviors of multiple CSI report configurations associated with the trigger state list include multiple time domain behaviors.

[0012] Preferably, each trigger state in the trigger state list is associated with a plurality of CSI reporting configurations having the same or different time domain behaviors.

[0013] Preferably, the time domain behavior associated with each trigger state includes at least one of the following: periodic, aperiodic, semi-persistent, semi-persistent on a physical uplink control channel PUCCH, or semi-persistent on a physical uplink shared channel PUSCH.

[0014] Preferably, each trigger state in the trigger state list is associated with at least one periodic CSI report configuration.

[0015] Preferably, the trigger state list comprises at least one subset trigger state list, wherein each subset trigger state list is associated with only one time domain behavior.

[0016] Preferably, at least one subset trigger state list includes at least one of the following: a non-periodic trigger state list, a periodic trigger state list, a semi-persistent trigger state list, a semi-persistent trigger state list on PUSCH, or a semi-persistent trigger state list on PUCCH.

[0017] Preferably, when one of the trigger states with the same index in the different subset trigger state lists is triggered, the trigger state with the same index is triggered.

[0018] Preferably, each trigger state in the trigger state list is associated with at least one of the following: one or more CSI report configurations, one or more transmission configuration indicator TCI states, one or more CSI reference signal resource configurations, a time offset between the signaling triggering the trigger state and the time slot configured for reporting CSI based on the CSI report configuration corresponding to the trigger state, a difference in power control offset, a power control offset, a power control offset synchronization signal SS, a difference in the number of ports for determining the number of ports based on which the CSI is determined or the number of ports of the CSI reference signal resource configuration, a repetition number indicating the number of times the CSI reference signal resource is repeated in the time domain, or a number of ports.

[0019] Preferably, the CSI report configuration is associated with a plurality of CSI resource configurations for channel measurement and / or a plurality of non-zero power CSI reference signal resource configurations for interference measurement.

[0020] Preferably, the periodic CSI reporting configuration in the CSI reporting configuration information is associated with at least one of the following: an aperiodic CSI reporting configuration, a trigger state in an aperiodic trigger state list, a trigger state in a semi-persistent trigger state list, or a semi-persistent CSI reporting configuration.

[0021] Preferably, the semi-persistent CSI reporting configuration in the CSI reporting configuration information is associated with: an aperiodic CSI reporting configuration, or a triggering state in an aperiodic triggering state list.

[0022] Preferably, the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered if at least one of the following events occurs: the non-periodic CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, the triggering state associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, or the semi-persistent CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered.

[0023] Preferably, if the CSI reporting configuration in the CSI reporting configuration information and associated with the CSI resource configuration is triggered to be valid, at least a portion of the CSI reference signal resources included in the CSI resource configuration is valid.

[0024] Preferably, the valid CSI reference signal resource satisfies at least one condition.

[0025] Preferably, the valid CSI reference signal resources satisfy the following condition: the number of ports of the valid CSI resources included in the CSI resource configuration is less than or equal to the number of ports of the CSI report configuration associated with the CSI resource configuration.

[0026] Preferably, the valid CSI reference signal resource meets the following condition: the valid CSI reference signal resource is not configured with tracking reference signal information and / or repetition information.

[0027] Preferably, the first signaling includes at least one of the following: downlink control information DCI, or medium access control MAC control element CE.

[0028] Preferably, the DCI is a group common DCI, a broadcast DCI, or a multicast DCI.

[0029] Preferably, the first signaling includes at least one of the following: an activation indication associated with activating at least one CSI report configuration in the CSI report configuration information, a deactivation indication associated with deactivating at least one CSI report configuration in the CSI report configuration information, a field indicating whether to activate or deactivate a trigger state indicated in the first signaling, a serving cell identifier indicating a serving cell to which the first signaling is applied, a bandwidth part identifier indicating a downlink bandwidth part to which the first signaling is applied, a trigger state list identifier indicating activation or deactivation of a trigger state list for reporting CSI, a CSI report configuration identifier indicating a CSI report configuration, a TCI state, a TCI state, and a TCI state. CI status list, trigger status indication, a first time offset between the first signaling and the time slot in which the CSI is reported, a second time offset between the first signaling and the time slot in which the CSI reference signal is received, a difference in power control offset, a power control offset, a power control offset synchronization signal SS, a difference in the number of ports used to determine the number of ports on which the CSI is determined or the number of ports configured for the CSI reference signal resource, a repetition number indicating the number of times the CSI reference signal resource is repeated in the time domain, a CSI report configuration identifier, a port number indication, or a start new CSI calculation indication for regenerating the CSI based on the first signaling and the CSI report configuration information.

[0030] Preferably, DCI and MAC CE are used to indicate different triggering states in CSI report configuration information.

[0031] Preferably, the CSI is measured, or the CSI reference signal is received, no earlier than a first delay after the first signaling is received.

[0032] Preferably, the CSI is reported no earlier than a second delay after the first signaling is received.

[0033] Preferably, the CSI is reported no earlier than a third delay after the CSI is measured, or a CSI reference signal is received.

[0034] Preferably, reporting the CSI according to the high-layer signaling and the first signaling includes:

[0035] triggering CSI report configuration according to the higher layer signaling and the first signaling, and

[0036] A CSI reference signal resource configuration associated with the triggered CSI reporting configuration is triggered.

[0037] Preferably, the TCI state of the reference signal resource configuration is the same as the first TCI state, and the first TCI state is applied to the control resource set for the physical downlink control channel within the active bandwidth part of the serving cell.

[0038] Preferably, the TCI state of the CSI reference signal resource configuration is indicated by the first signaling.

[0039] Preferably, the TCI state of the CSI reference signal resource configuration is associated with the trigger state.

[0040] Preferably, the TCI state of the CSI reference signal resource configuration is the same as the TCI state of the first signaling.

[0041] Preferably, the TCI state of the CSI reference signal resource configuration has a quasi-co-location relationship with the synchronization signal block SSB.

[0042] Preferably, the wireless communication method further comprises sending auxiliary information including at least one of the following to the wireless network node: a maximum number of ports, a preferred pattern, or a fallback query.

[0043] The present disclosure relates to a wireless communication method for a wireless network node. The method comprises:

[0044] Sending high-level signaling including channel state information (CSI) report configuration information to the wireless terminal,

[0045] sending a first signaling including a CSI report triggering state indication or a preferred pattern to a wireless terminal, and

[0046] A CSI report is received from a wireless terminal.

[0047] Various embodiments may preferably achieve the following features:

[0048] Preferably, the CSI report configuration information includes at least one of CSI report configuration, CSI-RS resource configuration or a trigger status list.

[0049] Preferably, the trigger state list includes trigger states associated with the CSI report configuration, and the time domain behavior of the CSI report configuration associated with the trigger state list includes multiple time domain behaviors.

[0050] Preferably, each trigger state in the trigger state list is associated with a plurality of CSI reporting configurations having the same or different time domain behaviors.

[0051] Preferably, the time domain behavior associated with each trigger state includes at least one of the following: periodic, aperiodic, semi-persistent, semi-persistent on a physical uplink control channel PUCCH, or semi-persistent on a physical uplink shared channel PUSCH.

[0052] Preferably, each trigger state in the trigger state list is associated with at least one periodic CSI report configuration.

[0053] Preferably, the trigger state list comprises at least one subset trigger state list, wherein each subset trigger state list is associated with only the time domain behavior.

[0054] Preferably, at least one subset trigger state list includes at least one of the following: a non-periodic trigger state list, a periodic trigger state list, a semi-persistent trigger state list, a semi-persistent trigger state list on PUSCH, or a semi-persistent trigger state list on PUCCH.

[0055] Preferably, when one of the trigger states with the same index in the different subset trigger state lists is triggered, the trigger state with the same index is triggered.

[0056] Preferably, each trigger state in the trigger state list is associated with at least one of the following: one or more CSI report configurations, one or more transmission configuration indicator TCI states, one or more CSI reference signal resource configurations, a time offset between the signaling triggering the trigger state and the time slot configured for reporting CSI based on the CSI report configuration corresponding to the trigger state, a difference in power control offset, a power control offset, a power control offset synchronization signal SS, a difference in the number of ports for determining the number of ports based on which the CSI is determined or the number of ports of the CSI reference signal resource configuration, a repetition number indicating the number of times the CSI reference signal resource is repeated in the time domain, or a number of ports.

[0057] Preferably, the CSI report configuration is associated with a plurality of CSI resource configurations for channel measurement and / or a plurality of non-zero power CSI reference signal resource configurations for interference measurement.

[0058] Preferably, the periodic CSI reporting configuration in the CSI reporting configuration information is associated with at least one of the following: an aperiodic CSI reporting configuration, a trigger state in an aperiodic trigger state list, a trigger state in a semi-persistent trigger state list, or a semi-persistent CSI reporting configuration.

[0059] Preferably, the semi-persistent CSI reporting configuration in the CSI reporting configuration information is associated with: an aperiodic CSI reporting configuration, or a triggering state in an aperiodic triggering state list.

[0060] Preferably, the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered if at least one of the following events occurs: the non-periodic CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, the triggering state associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, or the semi-persistent CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered.

[0061] Preferably, if the CSI reporting configuration in the CSI reporting configuration information and associated with the CSI resource configuration is triggered to be valid, at least part of the CSI reference signal resources included in the CSI resource configuration is valid.

[0062] Preferably, the valid CSI reference signal resource satisfies at least one condition.

[0063] Preferably, the valid CSI reference signal resources satisfy the following condition: the number of ports of the valid CSI resources included in the CSI resource configuration is less than or equal to the number of ports of the CSI report configuration associated with the CSI resource configuration.

[0064] Preferably, the valid CSI reference signal resource meets the following condition: the valid CSI reference signal resource is not configured with tracking reference signal information and / or repetition information.

[0065] Preferably, the first signaling includes at least one of downlink control information DCI or medium access control MAC element CE.

[0066] Preferably, the DCI is a group common DCI, a broadcast DCI, or a multicast DCI.

[0067] Preferably, the first signaling includes at least one of the following: an activation indication associated with activating at least one CSI report configuration in the CSI report configuration information, a deactivation indication associated with deactivating at least one CSI report configuration in the CSI report configuration information, a field indicating whether to activate or deactivate a trigger state indicated in the first signaling, a service cell identifier indicating a service cell to which the first signaling is applied, a bandwidth part identifier indicating a downlink bandwidth part to which the first signaling is applied, a trigger state list identifier indicating activation or deactivation of a trigger state list for reporting CSI, a CSI report configuration identifier indicating a CSI report configuration, a TCI state, and a TCI state. list, a trigger status indication, a TCI indication, a first time offset between the first signaling and the time slot in which the CSI is reported, a second time offset between the first signaling and the time slot in which the CSI reference signal is received, a difference in power control offset, a power control offset, a power control offset synchronization signal SS, a difference in the number of ports for determining the number of ports based on which the CSI is determined or the number of ports configured for the CSI reference signal resource, a number of repetitions indicating the number of times the CSI reference signal resource is repeated in the time domain, a CSI report configuration identifier, a port number indication, or a start new CSI calculation indication for regenerating the CSI based on the first signaling and the CSI report configuration information.

[0068] Preferably, DCI and MAC CE are used to indicate different triggering states in CSI report configuration information.

[0069] Preferably, the wireless communication method further comprises at least one of the following auxiliary information: receiving from the wireless terminal the maximum number of ports, a preferred pattern, or a fallback query.

[0070] The present invention relates to a wireless terminal. The wireless terminal comprises:

[0071] A communication unit, the communication unit is configured to: receive high-layer signaling including channel state information CSI report configuration information from a radio network node, and receive first signaling including a CSI report trigger state indication or a pattern indication from the radio network node, and

[0072] A processor is configured to report CSI according to high-layer signaling and first signaling.

[0073] Various embodiments may preferably achieve the following features:

[0074] Preferably, the processor is further configured to execute any one of the above-mentioned wireless communication methods.

[0075] The present invention relates to a wireless network node. The wireless network node comprises:

[0076] A communication unit, the communication unit being configured to:

[0077] Sending high-level signaling including channel state information (CSI) report configuration information to the wireless terminal,

[0078] sending a first signaling including a CSI report triggering state indication or a pattern indication to a wireless terminal, and

[0079] A CSI report is received from a wireless terminal.

[0080] Various embodiments may preferably achieve the following features:

[0081] Preferably, the wireless network node further comprises a processor, and the processor is configured to execute any one of the above wireless communication methods.

[0082] The present disclosure relates to a computer program product, which includes a computer-readable program medium code stored thereon. When the code is executed by a processor, the processor implements the wireless communication method described in any one of the aforementioned methods.

[0083] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description when taken in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0084] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present disclosure. Therefore, it will be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in an exemplary order, and unless otherwise expressly stated, the present disclosure is not limited to the specific order or hierarchy presented. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] The above and other aspects and implementations thereof are described in more detail in the drawings, the description and the claims.

[0086] Figure 1 A schematic diagram of a network according to an embodiment of the present disclosure is shown.

[0087] Figure 2 A schematic diagram of CSI-ReportConfig according to an embodiment of the present disclosure is shown.

[0088] Figure 3 A flow chart of a method according to an embodiment of the present disclosure is shown.

[0089] Figures 4 to 10 A schematic diagram of a trigger status list according to an embodiment of the present disclosure is shown.

[0090] Fig.11 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0091] Fig.12 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0092] Fig.13 A flow chart of a method according to an embodiment of the present disclosure is shown.

[0093] Fig.14 A flow chart of a method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0094] Figure 1 A schematic diagram of a network (architecture) according to an embodiment of the present disclosure is shown. Figure 1 In , the network includes the following network functions / entities:

[0095] 1) UE: User Equipment

[0096] 2) RAN: Radio Access Network

[0097] In the present disclosure, RAN may be equal to a RAN node or a Next Generation RAN (NG-RAN) (node).

[0098] 3)AMF: Access and Mobility Management Function

[0099] AMF includes the following functions: registration management, connection management, reachability management and mobility management. AMF terminates RAN control plane (CP) interface N2 and NAS interface N1, non-access layer (NAS) encryption and integrity protection. It also distributes session management (SM) NAS to the appropriate session management function (SMF) via interface N11. AMF provides services for other consumer network functions (NF) to subscribe or get notifications of mobility-related events and information.

[0100] 4)SMF: Session Management Function

[0101] SMF includes the following functions: session establishment, modification and release, UE IP address allocation and management (including optional authorization functions), selection and control of user plane (UP) functions, downlink data notification. SMF can subscribe to mobility-related events and information from AMF.

[0102] 5) UPF: User Plane Function

[0103] UPF includes the following functions: acting as an anchor point for intra / inter-radio access technology (RAT) mobility and an external session point for interconnection with data networks, packet routing and forwarding indicated by SMF, service usage reporting, Quality of Service (QoS) processing for UP, downlink packet buffering, and downlink data notification triggering, etc.

[0104] 6) UDM: Unified Data Management

[0105] UDM manages the subscription profile of the UE. The subscription includes data for mobility management (e.g., restricted area), session management (e.g., QoS profile per DNN per slice). The subscription data also includes slice selection parameters, which are used by AMF to select the appropriate SMF. AMF and SMF get subscriptions from UDM. Subscription data is stored in the Unified Data Repository (UDR). UDM uses such data after receiving a request from AMF or SMF.

[0106] 7) PCF: Policy Control Function

[0107] PCF supports a unified policy framework to manage network behavior. PCF provides access management policies to AMF, or provides session management policies to SMF, and / or provides UE policies to UE. PCF can access UDR to obtain subscription information related to policy decisions. PCF can also generate policies for managing network behavior based on subscriptions and instructions from application functions (AF). PCF can then provide policy rules for implementing CP functions to CP functions (e.g., AMF and / or SMF).

[0108] 8) NEF: Network Exposure Function

[0109] NEF supports exposing network capabilities and events to AF. Third-party AF can call services provided by the network via NEF, and NEF performs authentication and authorization on third-party applications. NEF also provides conversion of information exchanged with AF and information exchanged with internal NF.

[0110] 9) AF: Application Function

[0111] AF interacts with the core network to provide services, such as supporting: application impact on service routing, access to NEF, interaction with the policy framework for policy control, etc. AF can be considered trustworthy by the operator and can be allowed to interact directly with the relevant NF. AF that is not allowed by the operator to directly access NF should interact with the relevant NF via NEF using an external exposure framework. AF can store application information in UDR via NEF.

[0112] In some embodiments, for CSI measurement, the UE shall perform measurement based on CSI-RS (reference signal) and may report a corresponding report (e.g., measurement results) to the gNB.

[0113] In one embodiment, the UE may be configured with multiple CSI report configurations via CSI-ReportConfig signaling. CSI-ReportConfig is associated with one or more CSI-RS resource settings indicated by CSI-resourceConfigID. CSI-RS resource settings are configured by CSI-ResourceConfig signaling.

[0114] In one embodiment, the CSI-RS resource setting may include multiple CSI-RS resource sets. The CSI-RS resource set is configured by NZP-CSI-RS-ResourceSet signaling.

[0115] In one embodiment, a CSI-RS resource set may include multiple CSI-RS resources. The CSI-RS resources are configured by NZP-CSI-RS-Resource signaling.

[0116] Figure 2 A schematic diagram of CSI-ReportConfig according to an embodiment of the present disclosure is shown.

[0117] In one embodiment, reportConfigType is configured in the CSI report configuration. reportConfigType indicates the time domain behavior of the CSI report configuration. The time domain behavior can be periodic, semiPersistentOnPUCCH, semiPersistentOnPUSCH, or aperiodic.

[0118] In one embodiment, after the periodic CSI reporting configuration is configured through RRC (Radio Resource Control) signaling, the periodic CSI reporting configuration is effective.

[0119] In one embodiment, if the UE receives MAC CE (Media Access Control Element) signaling to activate the semi-persistentOnPuCCH CSI reporting configuration, the semi-persistentOnPuCCH CSI reporting configuration is valid.

[0120] In one embodiment, if the UE receives a DCI indicating a triggering status associated with the semi-persistentOnPUSCH CSI reporting configuration, the semi-persistentOnPUSCH CSI reporting configuration is valid.

[0121] In one embodiment, when the UE receives a DCI indicating a triggering status associated with the aperiodic CSI reporting configuration, the aperiodic CSI reporting configuration is triggered.

[0122] In one embodiment, RRC signaling semiPersistentOnPUSCH-TriggerStateList or CSI-SemiPersistentOnPUSCH-TriggerStateList is configured. In the signaling, a CSI report configuration list configured with semi-persistentOnPUSCH is included. DCI can be used to indicate one of the semi-persistentOnPUSCH CSI report configurations.

[0123] In one embodiment, RRC signaling aperiodicTriggerStateList or CSI-AperiodicTriggerStateList is configured. In the signaling, an associatedReportConfigInfoList is included, and each associatedReportConfigInfoList includes a list of CSI-AssociatedReportConfigInfo associated with an aperiodic CSI report configuration. DCI can be used to indicate one of the associatedReportConfigInfoLists. That is, DCI can indicate a list of aperiodic CSI report configurations.

[0124] The number of CSI-RS ports (hereinafter referred to as CSI-RS ports) is configured by nrofPorts in CSI-ResourceMapping, which is associated with NZP-CSI-RS-Resource. nrofPorts can be one of the following: p1, p2, p4, p8, p12, p16, p24, p32 (for example, integers 1, 2, 4, 8, 12, 16, 24, and 32). That is, p1 indicates that the number of CSI-RS ports is 1, p2 indicates that the number of CSI-RS ports is 2, and so on.

[0125] If the number of base station antennas changes, the channel may change, and the number of CSI-RS ports may also need to change. For example, a base station with 4 antennas can support 4-port CSI-RS. If the number of antennas is reduced to 2, the base station cannot support 4-port CSI-RS. In one embodiment, it would be beneficial if the UE could provide channel measurements for different numbers of antenna ports. However, most CSI-RS resource settings and CSI report configurations are configured by RRC signaling. In addition, only non-periodic CSI report configurations can be triggered by DCI. That is, the BS cannot quickly change the CSI report configuration based on changes in the number of BS antennas. In the present disclosure, a dynamic method for changing the CSI report configuration is provided.

[0126] Figure 3 A flow chart of a method according to an embodiment of the present disclosure is shown. Figure 3 The method shown may be used in a UE and comprises the following steps:

[0127] Step 301: Receive high-layer signaling including CSI report configuration information from a BS.

[0128] Step 302: Receive first signaling including a CSI report triggering status indication and / or a pattern indication from a BS.

[0129] Step 303: Perform CSI reporting according to the RRC signaling and / or the first signaling.

[0130] Specifically, the UE may receive high-layer signaling including CSI report configuration information. The high-layer signaling may be MAC CE signaling or RRC signaling. In some embodiments, the high-layer signaling includes at least one of the following: CSI report configuration, CSI-RS resource configuration, or trigger status list.

[0131] In some embodiments, the CSI-RS resource configuration may include at least one of the following: CSI-ResourceConfig, NZP (non-zero power) CSI-RS (CSI reference signal) resource set, NZP CSI-RS resource, CSI-RS resource mapping, ZP-CSI-RS-ResourceSet, or ZP-CSI-RS-Resource.

[0132] In some embodiments, the trigger state list includes one or more trigger states. Each trigger state may be associated with one or more CSI report configurations. The (multiple) trigger states in the trigger state list may be associated with one or more CSI report configurations configured with different time domain behaviors (e.g., time domain behaviors configured in reportConfigType signaling). For example, the time domain behaviors include periodic, semi-persistent, semiPersistentOnPUCCH, semiPersistentOnPUSCH, or aperiodic.

[0133] Figure 4 FIG. 1 shows a schematic diagram of a trigger status list according to an embodiment of the present disclosure. Figure 4 In the example, the trigger state list includes trigger state 1 associated with non-periodic CSI reporting configuration 1 and trigger state 2 associated with semi-persistent CSI reporting configuration 1.

[0134] Figure 5 A schematic diagram of a trigger status list according to an embodiment of the present disclosure is shown. Figure 5 The trigger state list shown includes trigger state 1 and trigger state 2. In this embodiment, trigger state 1 is associated with aperiodic CSI reporting configuration 1 and semi-persistent CSI reporting configuration 1 on PUCCH, and trigger state 2 is associated with semi-persistent CSI reporting configuration 1, aperiodic CSI reporting configuration 2, and aperiodic CSI reporting configuration 3 on PUSCH.

[0135] In some embodiments, the trigger state list includes one or more trigger states, and each trigger state may be associated with one or more periodic CSI report configurations. Figure 6 The trigger state list shown includes trigger state 1 associated with periodic CSI reporting configuration 1, and trigger state 2 associated with periodic CSI reporting configuration 2.

[0136] In one embodiment, the trigger state list includes one or more trigger states, and each trigger state is associated with one or more periodic CSI reporting configurations, the periodic CSI reporting configuration is triggered to be active / valid, and other periodic CSI reporting configurations associated with the untriggered trigger state are not triggered to be deactivated / invalid.

[0137] In one embodiment, the trigger state list includes one or more trigger states, and each trigger state is associated with one or more periodic CSI report configurations, and whether the periodic CSI report configuration configured in the trigger state list is valid, and / or whether it is triggered, and / or whether it is active is determined based on the first signaling. When the periodic CSI report configuration is configured in csi-ReportConfigToAddModList, a periodic CSI report configuration not included in the trigger state list is valid. In other words, the periodic CSI report configuration not included in the trigger state list is not controlled by the first signaling. In some embodiments, the status (e.g., active or inactive) of other CSI report configurations in the trigger state list but not indicated by the first signaling does not change.

[0138] In some embodiments, the trigger state list includes one or more subset trigger state lists. In one embodiment, the subset trigger state list includes at least one of the following:

[0139] - List of non-periodic trigger states,

[0140] - Periodic trigger status list,

[0141] - List of semi-continuous trigger states,

[0142] - A list of semi-persistent trigger states on PUSCH, or

[0143] - List of semi-persistent triggering states on PUCCH.

[0144] Note that each subset triggering state list may be associated only with CSI reporting configurations having the same kind of time domain behavior (eg, periodic, aperiodic, semi-persistent, etc.).

[0145] In one embodiment, triggering trigger state X means triggering trigger state X in each subset trigger, where X is an index. In one embodiment, triggering trigger state X means triggering the Xth trigger state in each subset trigger state list. In one embodiment where the Xth trigger state is triggered, if a subset trigger state list does not include trigger state X, then the trigger states in the subset trigger state list will not be triggered.

[0146] Figure 7 A schematic diagram of a trigger state list according to an embodiment of the present disclosure is shown. The trigger state list includes a periodic trigger state list, a semi-persistent trigger state list, and an aperiodic trigger state list. The periodic trigger state list includes trigger state 1 associated with periodic CSI report configuration 1, trigger state 2 associated with periodic CSI report configuration 2, and so on. The semi-persistent trigger state list includes trigger state 1 associated with semi-persistent CSI report configuration 1, trigger state 2 associated with semi-persistent CSI report configuration 2, and so on. The aperiodic trigger state list includes trigger state 1 associated with aperiodic CSI report configuration 1, trigger state 2 associated with aperiodic CSI report configuration 2, and so on.

[0147] In some embodiments, the trigger status list includes two types of trigger status lists, wherein one type of trigger status list includes at least one of the following: a CSI trigger status report on a PUCCH, or a CSI trigger status report on a PUSCH.

[0148] In one embodiment, the CSI triggering status report on PUCCH is associated with a periodic CSI reporting configuration and / or a semi-persistentOnPUCCH CSI reporting configuration.

[0149] In one embodiment, the CSI triggering status report on PUSCH is associated with a semi-persistentOnPUSCH CSI reporting configuration and / or an aperiodic CSI reporting configuration.

[0150] In one embodiment, the time offset is triggered when the CSI triggered status report on the PUSCH is triggered.

[0151] In some embodiments, a periodic or semi-persistentOnPUCCH CSI reporting configuration may be configured with one or more PUCCH resources (e.g., PUCCH-CSI resources). A PUCCH resource is a resource on which a CSI report may be sent. In one embodiment, the PUCCH resources of the periodic or semi-persistentOnPUCCH CSI reporting configurations in the same trigger state are the same. Alternatively or additionally, the PUCCH resources of the periodic or semi-persistentOnPUCCH CSI reporting configurations in different trigger states are the same.

[0152] In some embodiments, each trigger state may be associated with one or more CSI report configurations configured with a codebook configuration (e.g., CodebookConfig). In one embodiment, the number of antenna ports (e.g., nrOfAntennaPorts) of the CSI report configurations associated with the same trigger state is the same. In some embodiments, the number of antenna ports (e.g., nrOfAntennaPorts) configured with CSI report configurations associated with different trigger states is different.

[0153] In some embodiments, each trigger state can be associated with at least one of the following: one or more CSI report configurations, one or more TCI (transmission configuration indicator) states, one or more CSI-RS resource configurations, a first time offset, a first time offset index, a second time offset, a second time offset index, a difference in power control offset, a power control offset, a power control offset SS (synchronization signal), a difference in the number of ports, a number of repetitions, and a number of ports.

[0154] In one embodiment, the TCI state is used for a first time domain behavior CSI-RS resource configuration associated with the triggered CSI reporting configuration. The first time domain behavior includes at least one of semi-persistent or aperiodic. In another embodiment, the first time domain behavior includes at least one of periodic, semi-persistent, or aperiodic. Semi-persistent includes semi-persistentOnPUCCH and / or semi-persistentOnPUSCH.

[0155] In one embodiment, the TCI state is used for a first-purpose CSI-RS resource configuration associated with a triggered CSI report configuration. For example, the first purpose includes at least one of channel measurement and intra-cell interference measurement.

[0156] In one embodiment, the trigger state is associated with a TCI state. In one embodiment, the TCI state is used for all CSI reporting configurations associated with the trigger state, the trigger state being associated with the first usage of the CSI-RS resource configuration and / or with the first time domain behavior.

[0157] In one embodiment, the TCI state is used for all CSI-RS resource configurations associated with the triggering state.

[0158] In one embodiment, the TCI state is used for a semi-persistent CSI-RS resource configuration associated with a triggered CSI reporting configuration.

[0159] In one embodiment, the TCI state is used for semi-persistent CSI-RS resource configuration and aperiodic CSI-RS resource configuration associated with the triggered CSI reporting configuration.

[0160] In one embodiment, the TCI state is used for semi-persistent CSI-RS resource configuration and periodic CSI-RS resource configuration associated with the triggered CSI reporting configuration.

[0161] In one embodiment, the first time offset indicates an offset between the signaling that triggers the trigger state and the time slot in which the UE can report CSI according to the CSI reporting configuration associated with the triggered trigger state. In one embodiment, the first time offset indicates an offset between two CSI reports. If the first time offset is configured in the trigger state list, the first time offset configured in the CSI reporting configuration associated with the trigger state list or the first time offset list (i.e., the list of first time offsets) can be ignored. In one embodiment, the trigger state is associated with the first time offset.

[0162] In one embodiment, the first time offset index indicates a first time offset in a first time offset list configured in the CSI report configuration.

[0163] In one embodiment, the first time offset (value) configured for the CSI report configuration in the trigger status list is less than a threshold value. For example, the threshold value is an integer value greater than 0 and less than 8.

[0164] In one embodiment, the second time offset indicates an offset between the signaling that triggers the triggering state and the time slot in which the UE receives the CSI-RS. In one embodiment, the second time offset is indicated by indicating a second time offset index in a second time offset list (i.e., a list of second time offsets) configured in the CSI-RS resource configuration.

[0165] In one embodiment, the difference in power control offset (P_delta) indicates a change in power control offset. The power control offset (P) used by the UE for CSI reporting is determined by the power control offset (P_1) configured in the associated CSI-RS resource configuration and the difference in power control offset (P_delta). For example, P = P_1-P_delta. The power control offset can be PowerControlOffset or PowerControlOffsetSS configured in NZP-CSI-RS-Resource signaling.

[0166] In one embodiment, the power control offset refers to powerControlOffset, which is the assumed ratio of PDSCH EPRE (energy per resource element) to NZP (non-zero power) CSI-RS EPRE when the UE derives CSI feedback / reporting.

[0167] In one embodiment, the power control offset SS refers to powerControlOffsetSS, which is an assumed ratio of NZP CSI-RSEPRE to SSB (SS / PBCH block) EPRE.

[0168] In one embodiment, the difference in the number of ports is used to determine the number of ports that the UE assumes to be used to calculate the CSI or CSI-RS resource configuration. For example, the UE is triggered by the indicated trigger state for CSI reporting, the number of ports configured for the CSI-RS resources associated with the CSI report is PN_1, and the difference in the number of ports is PN_2. In this case, the number of ports used by the UE to calculate the CSI is PN=PN_1-PN_2 or PN=PN_1+PN_2. Alternatively, the difference in the number of ports is a scaling factor PN_3 of the number of ports PN_1. For example, PN=PN_1 / PN_3 or PN=PN_1*PN_3. The time and / or frequency resources for the port number PN are derived from the configured time and / or frequency resources. For another example, the UE is triggered by the indicated trigger state for CSI reporting, the number of ports configured for the CSI report configuration is PN_1, and the difference in the number of ports is PN_2. In this case, the port number PN used by the UE to calculate or report CSI or PMI (precoding matrix indicator) is PN=PN_1-PN_2 or PN=PN_1+PN_2. Alternatively, the difference in the port number is a scaling factor PN_3 of the port number PN_1 (e.g., PN=PN_1 / PN_3, PN=PN_1*PN_3).

[0169] In one embodiment, the repetition number indicates the number of CSI-RS repetitions in the time domain. For example, the CSI-RS is repeated multiple times in the time domain, and the number of repetitions of the CSI-RS is indicated by the number of repetitions included in the CSI report configuration information. The first version of the CSI-RS is configured by RRC signaling, and the next repetition version starts at the time slot of the Xth time slot after the previous CSI-RS resource ends, where X is an integer (e.g., X=1).

[0170] In some embodiments, the CSI report configuration may be associated with more than one higher layer signaling resourcesForChannelMeasurement or more than one higher layer signaling nzp-CSI-RS-ResourcesForinterference. In some embodiments, the CSI report configuration may be associated with more than one CSI-RS resource settings for channel measurement. In some embodiments, the CSI report configuration may be associated with more than one CSI-RS resource settings for interference measurement.

[0171] In some embodiments, the trigger state list includes multiple trigger states, and each trigger state is associated with one or more CSI report configurations.

[0172] In one embodiment, the trigger state list includes multiple trigger states, and each trigger state is associated with one or more CSI report configurations, and the port numbers of CSI-RS resource configurations associated with the CSI report configurations in one trigger state are the same.

[0173] In one embodiment, the trigger state list includes multiple trigger states, and each trigger state is associated with one or more CSI report configurations, and the time and / or frequency resources of the CSI-RS resource configuration associated with the CSI report configuration in the first trigger state are a subset of the frequency and / or time resources of the CSI-RS resource configuration associated with the CSI report configuration in the second trigger state.

[0174] In one embodiment, the trigger state list includes multiple trigger states, and each trigger state is associated with one or more CSI report configurations, and the powerControlOffset / powerControlOffsetSS of the CSI-RS resource configuration associated with the CSI report configuration in the first trigger state is less than the powerControlOffset / powerControlOffsetSS of the CSI-RS resource configuration associated with the CSI report configuration in the second trigger state. In this embodiment, the number of ports of the CSI-RS resource configuration associated with the CSI report configuration in the second trigger state can be greater than the number of ports of the CSI-RS resource configuration associated with the CSI report configuration in the first trigger state.

[0175] In some embodiments, the CSI reporting configuration in the trigger status list is specifically designed.

[0176] For example, a specific design of the CSI report configuration in the trigger status list may be based on at least one of the following embodiments of the parameters / elements in the CSI report configuration in the trigger status list.

[0177] In one embodiment, the triggering offset list in the CSI report configuration may be configured with only one triggering offset.

[0178] In one embodiment, the reporting offset list associated with the triggering state in the CSI reporting configuration is configured with only one reporting offset value.

[0179] In one embodiment, a first report type of the CSI report configuration may be configured. For example, the first report type includes at least one of the following: cri-RI-i1, cri-RI-i1-CQI, cri-Ri-CSI, cri-RSRP; the report types include: none, cri-RI-i1, cri-RI-i1-CQI, cri-Ri-CSI, cri-RSRP, cri-RI-PMI-CQI, ssb-Index-RSRP, cri-RI-LI-PMI-CQI.

[0180] In one embodiment, the higher layer parameter timeRestrictionForChannelMeasurements signaling in the CSI report configuration is configured as 'Configured'. Note that if the higher layer parameter timeRestrictionForChannelMeasurements in CSI-ReportConfig is set to 'Configured', the UE shall only use the channel measurements for calculating the CSI reported in uplink time slot n based on the latest (no later than the CSI reference resource) timing of the NZP CSI-RS associated with the CSI resource configuration.

[0181] In one embodiment, the CSI-RS resource associated with the CSI reporting configuration is specifically designed. For example, the CSI-RS resource may be specifically designed as at least one of the following:

[0182] - The CSI-RS resource configuration is associated with a first time domain behavior: In one embodiment, the first time domain behavior includes at least aperiodicity;

[0183] - The aperiodicTriggeringOffset configured in the CSI-RS resource configuration associated with the triggered state, or associated with the CSI reporting configuration in the triggered state, is configured with only one aperiodic triggering offset value. Note that the aperiodic triggering offset value indicates the time offset between the DCI and the CSI-RS resource.

[0184] In some embodiments, the CSI report configuration in the trigger state list is invalid before being triggered. For example, the CSI report configuration in the trigger state list may be activated / valid only when a trigger state (indicating / including the first signaling of the trigger state) triggering the CSI report configuration / associated with the CSI report configuration is received.

[0185] In one embodiment, the periodic CSI reporting configuration may be valid / active once configured.

[0186] In one embodiment, when the UE receives an activation MAC CE for semi-persistent CSI reporting configuration on PUCCH, the semi-persistent CSI reporting configuration on PUCCH is valid / active.

[0187] In one embodiment, when the UE receives a DCI that triggers a trigger state, the semi-persistent reporting configuration or the aperiodic CSI reporting configuration on the PUSCH is valid / active, and the trigger state triggers the reporting configuration. In one embodiment, the trigger state list can be used to deactivate the trigger state.

[0188] In some embodiments, the periodic CSI reporting configuration may be (configured to be) associated with the aperiodic CSI reporting configuration or the semi-persistent CSI reporting configuration. If the aperiodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, the associated periodic CSI reporting configuration is also triggered.

[0189] In some embodiments, the periodic CSI report configuration may be (configured to be) associated with a trigger state in a trigger state list. If the trigger state is triggered, the associated periodic CSI report configuration is also triggered. The trigger state list may be configured by semiPersistentOnPUSCH-TriggerStateList, CSI-SemiPersistentOnPUSCH-TriggerStateList, aperiodicTriggerStateList, CSI-AperiodicTriggerStateList, associatedReportConfigInfoList, or CSI-AssociatedReportConfigInfo.

[0190] In some embodiments, the semi-persistent CSI reporting configuration may be (configured to be) associated with a trigger state in a trigger state list. If the trigger state is triggered, the associated periodic CSI reporting configuration is also triggered. The trigger state list may be configured by aperiodicTriggerStateList, CSI-AperiodicTriggerStateList, associatedReportConfigInfoList, or CSI-AssociatedReportConfigInfo.

[0191] In some embodiments, the trigger state in the first trigger state list is configured to be associated with the trigger state in the second trigger state list. The second trigger state list can be aperiodicTriggerStateList, CSI-AperiodicTriggerStateList, associatedReportConfigInfoList, asemiPersistentOnPUSCH-TriggerStateList, or CSI-SemiPersistentOnPUSCH-TriggerStateList. If the trigger state in the second trigger state list is triggered, the associated trigger state in the first trigger state list is also triggered.

[0192] In some embodiments, the semi-persistent CSI reporting configuration may be (configured to be) associated with the aperiodic CSI reporting configuration. If the aperiodic CSI reporting configuration is triggered, the associated semi-persistent CSI reporting configuration is also triggered.

[0193] In some embodiments, the trigger state in the trigger state list is configured to be associated with an aperiodic CSI reporting configuration or a semi-persistent CSI reporting configuration. If the aperiodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, then the (multiple) CSI reporting configurations in the associated trigger state are also triggered.

[0194] In some embodiments, if a CSI report configuration in a triggered state is triggered to be valid, the CSI-RS resource (configuration) associated with the CSI report configuration is also valid.

[0195] In some embodiments, if a CSI report configuration in a triggered state is triggered to be valid, part or all of the CSI-RS resources in the CSI-RS resource configuration associated with the triggered CSI report configuration are also valid.

[0196] Figure 8 FIG. 1 shows a schematic diagram of a trigger status list according to an embodiment of the present disclosure. Figure 8 In the trigger state list, the trigger state list includes trigger state 1 associated with periodic CSI report configuration 1, and trigger state 2 associated with semi-persistent CSI report configuration 1. When periodic CSI report configuration 1 is triggered to be valid (or trigger state 1 is indicated / triggered by the first signaling), part or all of the CSI-RS resources in the CSI-RS resource configuration associated with periodic CSI report configuration 1 are also valid / triggered. Similarly, when semi-persistent CSI report configuration 1 is triggered (or trigger state 2 is triggered / indicated by the first signaling) to be valid, part or all of the CSI-RS resources in the CSI-RS resource configuration associated with semi-persistent CSI report configuration 1 are also valid.

[0197] In one embodiment, the CSI-RS resource configuration includes one or more CSI-RS resource sets, and one CSI-RS resource set includes one or more CSI-RS resources.

[0198] In one embodiment, the portion of the CSI-RS resources in the CSI-RS resource configuration that is valid when the associated CSI report configuration is triggered is a first type of CSI-RS resource in the CSI-RS resource configuration. For example, the first type of CSI-RS resources includes CSI-RS resources configured with a number of ports that is less than or equal to the number of ports associated with the triggering state. Alternatively or additionally, the first type of CSI-RS resources includes CSI-RS resources that are not configured with trs-info (tracking reference signal information) and / or repetition (information).

[0199] In some embodiments, the first signaling includes at least one of the following information: activation / deactivation indication, trigger status indication, TCI indication, first time offset, first time offset index, difference of power control offset, power control offset indication, pattern indication, difference of number of ports, number of repetitions, CSI report configuration ID (identifier), number of ports indication, second time offset, second time offset index, start new CSI calculation indication. In some embodiments, the information included in the first signaling is CSI report trigger status indication.

[0200] In one embodiment, the first time offset is an offset between the first signaling and a time slot of a PUSCH in which the UE reports CSI. In some embodiments, the first time offset is an offset between two CSI reports.

[0201] In one embodiment, the power control offset may be a power control offset or a power control offset SS. In one embodiment, the power control offset indication indicates a power control offset for replacing an original power control offset for a CSI-RS resource associated with the triggered CSI reporting configuration.

[0202] In one embodiment, the pattern indication indicates a valid pattern in a table. For example, the table may be:

[0203]

[0204]

[0205]

[0206] The parameters k and l in the table are configured by high-level signaling.

[0207] In one embodiment, the pattern indication may indicate a set of predefined patterns defining the CSI-RS positions within a time slot. Each pattern is a row in the above table. For example, the pattern indication may indicate that rows (with row indices) 14, 15, 16, 17, 18 are invalid. That is, the CSI report configuration or CSI-RS resource associated with the indicated row is invalid.

[0208] In one embodiment, the pattern indication indicates a row (index) in a table to indicate whether the pattern in the row with the row index is valid or invalid. In one embodiment, the pattern indication indicates a maximum row index, wherein the patterns in the row of the table with a row index less than or equal to the maximum row index are valid, and the patterns in the row with a row index greater than the maximum row index are invalid. In one embodiment, the pattern indication indicates an invalid pattern. In one embodiment, the pattern indication indicates a pattern index to indicate whether the pattern with the indicated pattern index or the row of the pattern with the indicated pattern index is valid or invalid.

[0209] In one embodiment, each CSI reporting configuration is associated with a CSI reporting configuration ID.

[0210] In one embodiment, the port number indication may indicate the maximum valid port number of the CSI-RS resource associated with the CSI reporting configuration.

[0211] In one embodiment, the start new CSI calculation indication instructs the UE to remeasure and / or recalculate the CSI. In other words, the UE does not report the CSI generated / determined / measured / calculated according to the CSI-RS resource before receiving the indication (eg, the first signaling).

[0212] In one embodiment, the activation / deactivation indication indicates whether the trigger state indicates whether to trigger / activate the CSI reporting configuration associated with the indicated trigger state, or the trigger state indicates whether to release / deactivate the CSI reporting configuration associated with the indicated trigger state.

[0213] In one embodiment, the activation / deactivation indication activates / deactivates the CSI reporting configuration.

[0214] In some embodiments, the first signaling may indicate at least one or more trigger state indications. In one embodiment, each trigger state includes one or more CSI report configurations and a TCI state. The TCI state indication is a TCI state for a CSI-RS resource associated with the CSI report configuration.

[0215] In some embodiments, the first signaling is / includes MAC CE and / or DCI. MAC CE may be used to select M trigger states from a trigger state list configured by high-level signaling (e.g., RRC signaling), where M is an integer value greater than 0 and not greater than a threshold value (e.g., 8). DCI may be used to indicate one of the trigger states selected by MAC CE.

[0216] In some embodiments, the first signaling is / comprises DCI.

[0217] In an embodiment where the first signaling includes / is DCI, the DCI is UE-specific DCI (eg, DCI format 0-1 or DCI format 0-2).

[0218] In one embodiment, a field in the DCI is used to indicate at least one item of information (eg, the above parameters included in the first signaling).

[0219] In an embodiment where the first signaling includes / is a DCI, a field in the DCI is used to indicate information associated with a trigger state. For example, the field is a CSI request field. In addition, the DCI can be used to trigger an aperiodic CSI report configuration or a semi-persistentOnPUSCH CSI report configuration. The indication in the DCI can also trigger a periodic CSI report configuration or a semi-persistent CSI report configuration, and the periodic CSI report configuration or the semi-persistent CSI report configuration is configured to be associated with an aperiodic CSI report configuration or a semi-persistentOnPUSCH CSI report configuration, or is associated with a trigger state, which is a triggered trigger state.

[0220] In an embodiment where the first signaling includes / is DCI, the first signaling indicates more than one information (e.g., the above-mentioned parameters included in the first signaling), and the information may be indicated in different fields. In this embodiment, some information may be indicated separately in different fields. As an alternative or in addition, some information is indicated together in the same field. For example, the trigger state indication included in the DCI is indicated in one field, and the time offset included in the DCI is indicated in another field.

[0221] In an embodiment where the first signaling includes / is a DCI, the DCI triggers a CSI triggered status report on a PUCCH, wherein one field of the DCI is used to indicate a triggered status indication, and another field of the DCI is used to indicate a time offset. For example, the DCI that triggers a CSI triggered status report on a PUSCH includes one field configured to indicate a triggered status indication, and another field configured to indicate a time offset.

[0222] In an embodiment where the first signaling includes / is DCI, if the DCI trigger includes a triggering status of an aperiodic CSI reporting configuration or a semi-persistentOnPUSCH CSI reporting configuration, the DCI includes a field for indicating a triggering status indication and a field for indicating a time offset.

[0223] In an embodiment where the first signaling includes / is DCI, the first signaling may include a first DCI and a second DCI, wherein the first DCI may include a field for indicating a trigger status indication, and the second DCI may include a field for indicating a trigger status indication and a field for indicating a time offset.

[0224] In an embodiment where the first signaling includes / is DCI, the DCI may be a group-common DCI. Group-common DCI refers to DCI that carries information for one or more UEs, and / or indicates that a field in the DCI is used to indicate information for one or more UEs. Note that in the present disclosure, considerations (e.g., design of fields, rules, and methods) applied to UE-specific DCI in the present disclosure may also be applied to group-common DCI.

[0225] In an embodiment where the first signaling includes / is DCI, the information in the DCI may be indicated by a bitmap or a code point.

[0226] For example, the information may be indicated by a bitmap. The information indicated by the bitmap may be a trigger state activation / deactivation indication. Each bit in the bitmap corresponds to a trigger state, where a bit '0' indicates that the corresponding trigger state is deactivated, and a bit '1' indicates that the corresponding trigger state is activated.

[0227] For example, the information may be indicated by a code point. Each code point indicates a trigger state. If the trigger state is indicated by a code point included in the first signaling, the trigger state is activated.

[0228] In an embodiment where the first signaling includes / is DCI, the field in the DCI includes a bit indicating an activation / deactivation indication and X bits indicating a trigger status indication, where X is a positive integer. For example, if the activation / deactivation indication bit is '1', it means that the DCI (e.g., X bits) is used for activation indication, and '0' means that X bits are used for deactivation indication. Fig. 9 A schematic diagram showing fields in a DCI according to an embodiment of the present disclosure is shown. Fig. 9 The DCI in may be a UE-specific DCI. Fig. 9 As shown, the field in the DCI includes 1 bit indicating an activation / deactivation indication and X bits indicating a trigger status indication, where X is a positive integer. Fig.10 A schematic diagram showing fields in a DCI according to an embodiment of the present disclosure is shown. Fig.10The DCI in may be a group common DCI. Fig.10 In the field, the field includes 1 bit indicating activation / deactivation indication, X bits of trigger status indication for UE 1, X bits of trigger status indication for UE 2, etc.

[0229] In an embodiment where the first signaling includes / is a group common DCI, the length of the trigger status indication field for different UEs (eg, Fig.10 The trigger status indication for UE 1 and the trigger status indication for UE 2) may be different and / or configured by higher layer signaling.

[0230] In embodiments where the first signaling comprises / is a group-common DCI, this field is shared by a group of UEs. In other words, the indication associated with the CSI report for a group of UEs is the same.

[0231] In one embodiment, the starting position of the UE trigger status indication field in the DCI is configured by higher layer signaling.

[0232] In an embodiment where the first signaling includes / is a group common DCI, one trigger status indication field may indicate a trigger status to a group of UEs.

[0233] In an embodiment where the first signaling includes / is a group common DCI, the activation / deactivation indication is located at the beginning of the DCI (e.g., Fig.10 ).

[0234] In one embodiment, the first signaling is / includes broadcast DCI and / or multicast DCI. The broadcast or multicast DCI may be scrambled with at least one of the following RNTIs (Radio Network Temporary Identifiers): MCCH-RNTI (Multicast Broadcast Service (MBS) Control Channel RNTI), G-RNTI (Group RNTI), or G-CS-RNTI (Group Configuration Scheduling RNTI).

[0235] In an embodiment where the first signaling includes / is DCI, the DCI is scrambled with a specific RNTI. For example, the specific RNTI is only used for CSI-RS configuration indication. In an embodiment, the CSI-RS configuration indication is the above-mentioned parameter included in the first signaling.

[0236] In an embodiment where the first signaling includes / is DCI, the DCI is scrambled with at least one of the following RNTIs: MCCH-RNTI, G-RNTI, or G-CS-RNTI.

[0237] In some embodiments, the first signaling includes / is a MAC CE.

[0238] In an embodiment where the first signaling includes / is a MAC CE, the MAC CE is scheduled by a broadcast / multicast DCI.

[0239] In an embodiment where the first signaling includes / is a MAC CE, the MAC CE includes at least one of the following fields:

[0240] -Trigger status indication,

[0241] - activation / deactivation indication,

[0242] - A field indicating whether to activate or deactivate the indicated trigger state: for example, this field is set to 1 to indicate activation, otherwise it indicates deactivation,

[0243] - Serving Cell ID: This field indicates the identity / identifier of the serving cell to which the MAC CE applies,

[0244] -BWP ID, which indicates the DL BWP to which the MAC CE applies,

[0245] - a trigger state list ID, indicating the trigger state list that should be activated or deactivated,

[0246] -CSI report configuration ID, indicating CSI report,

[0247] -TCI status,

[0248] -TCI status list,

[0249] - first time offset,

[0250] - the difference in power control offset,

[0251] - Power control offset,

[0252] -Drawing instructions,

[0253] - a second time offset,

[0254] -Difference in number of ports,

[0255] - number of repetitions,

[0256] - port number indication, or

[0257] -Start new CSI calculation indication.

[0258] The definitions of the fields included in the MAC CE may refer to those fields with the same names in the DCI.

[0259] In one embodiment, the first signaling includes / is a SIB (System Information Block).

[0260] In one embodiment, the first signaling may be different for different triggering states. For example, the first signaling configured to indicate a CSI triggering state report on a PUCCH may be a DCI, and the first signaling configured to trigger a CSI triggering state report on a PUSCH may be a MAC CE. In one embodiment, the first signaling may be different for different triggering state lists.

[0261] In some embodiments, if the UE receives first signaling indicating a trigger state, and the trigger state is associated with at least a periodic CSI reporting configuration or a semi-persistent CSI reporting configuration, the UE may perform at least one of the following:

[0262] - measurement of the CSI-RS resource configuration associated with the periodic CSI reporting configuration triggered by the first signaling,

[0263] - measurements on the CSI-RS resource configuration associated with a periodic CSI reporting configuration, which is triggered by the first signaling and is associated with the lowest CSI reporting configuration ID (i.e., CSI-ReportConfigId),

[0264] - measurement of the CSI-RS resource configuration associated with the aperiodic CSI reporting configuration triggered by the first signaling,

[0265] - measurements on the CSI-RS resource configuration associated with an aperiodic CSI reporting configuration, which is triggered by the first signaling and is associated with the lowest CSI reporting configuration ID (i.e., CSI-ReportConfigId),

[0266] - measurement of an effective CSI-RS resource configuration associated with a CSI reporting configuration, the CSI reporting configuration being triggered by a first signaling for a first CSI report,

[0267] - measurements on a CSI-RS resource configuration, which is the first or most recently valid CSI-RS resource configuration after receiving the first signalling, or after applying a delay (regardless of whether the CSI-RS resource is associated with a CSI reporting configuration, and regardless of whether the CSI-RS resource configuration is configured with 'aperiodic', 'semi-persistent' or 'periodic'),

[0268] - measurement of a CSI-RS resource configuration that is activated and associated with a CSI reporting configuration triggered by the first signaling,

[0269] - measurement of a CSI-RS resource configuration associated with a CSI reporting configuration triggered by the first signaling (if the CSI-RS resource configuration was not activated before receiving the first signaling, the CSI-RS resource configuration is activated by the first signaling), or

[0270] - Measurement of a CSI-RS resource configuration, which is a first or most recent valid CSI-RS resource configuration after receiving the first signaling, or after applying a delay, wherein the CSI-RS resource configuration is a CSI-RS resource configuration associated with a CSI report configuration triggered by the first signaling.

[0271] In some embodiments, if the UE receives a first signaling indicating a triggering status, and the triggering status is associated with at least a periodic CSI reporting configuration or a semi-persistent CSI reporting configuration, the above-mentioned executed behavior is for the first CSI report after the UE receives the first signaling.

[0272] In some embodiments, if the UE receives first signaling indicating a trigger state, and the trigger state is at least associated with a periodic CSI reporting configuration, the UE behavior may include at least one of the following:

[0273] - the UE reports CSI on a PUCCH configured in a CSI reporting configuration triggered by the first signaling and associated with the lowest CSI reporting configuration ID (i.e., CSI-ReportConfigId),

[0274] - the UE reports CSI on a PUCCH configured in a CSI reporting configuration triggered by the first signaling,

[0275] - the UE reports the CSI on the PUSCH, where the PUSCH is determined based on the CSI reporting configuration and the first signaling,

[0276] - If the first signaling indicates a time offset, the UE reports CSI on the PUSCH,

[0277] - the UE reports CSI on PUSCH where the PUSCH is associated with the aperiodic or semi-persistentOnPUSCH CSI reporting configuration with the lowest index,

[0278] - the UE reports CSI on the PUCCH or PUSCH for the first or latest valid resource after receiving the first signalling, or after applying a delay, or after the latest valid CSI-RS resource, where the PUCCH or PUSCH is associated with the CSI reporting configuration triggered by the first signalling, or

[0279] - The UE reports CSI on a UL resource that is a first or latest valid resource after receiving the first signaling, or after applying a delay, or after a latest valid CSI-RS resource, wherein the UL resource is associated with a CSI reporting configuration triggered by the first signaling.

[0280] In some embodiments, the UE measures / receives the CSI-RS after a first application delay (also referred to as a first delay) after receiving the first signaling. For example, the first application delay is the duration between a slot or a last symbol and a first slot / symbol in which the UE receives the first signaling, and the UE measures / receives the CSI-RS according to the first signaling in the first slot / symbol. Alternatively or additionally, the first application delay is the minimum duration between a slot or a last symbol and a first slot / symbol in which the UE receives the first signaling, and the UE measures / receives the CSI-RS according to the first signaling in the first slot / symbol.

[0281] In some embodiments, the UE reports the CSI after a second application delay (also referred to as a second delay) after receiving the first signaling. In some embodiments, the UE sends the CSI report after a second application delay after receiving the first signaling.

[0282] In one embodiment, the second application delay is the duration between a time slot or a last symbol and a first time slot / symbol in which the UE reports CSI according to the first signaling, in which time slot or the last symbol the UE receives the first signaling.

[0283] In one embodiment, the second application delay is a minimum duration between a time slot or a last symbol and a first time slot / symbol in which the UE reports CSI according to the first signaling, in which time slot or the last symbol the UE receives the first signaling.

[0284] In some embodiments, the UE reports the CSI after a third application delay after measuring / receiving the CSI-RS.

[0285] In one embodiment, the third application delay (also referred to as the third delay) is the duration between the time slot or last symbol of the CSI-RS and the first time slot / symbol in which the UE reports CSI according to the first signaling.

[0286] In one embodiment, the third application delay is the minimum duration between the time slot or last symbol of the CSI-RS and the first time slot / symbol for the UE to report CSI according to the first signaling.

[0287] In one embodiment, the first application delay / the second application delay / the third application delay may be associated with (e.g., determined based on at least one of the following): a predefined value, high-layer signaling, time domain behavior, UE capability, SFN (system frame number), SCS (subcarrier spacing), ACK (acknowledgement), PUSCH processing time, CSI calculation time, PDSCH decoding time.

[0288] In some embodiments, the first application delay / the second application delay / the third application delay may be configured through higher layer signaling or may be predefined.

[0289] In some embodiments, the first application delay / the second application delay / the third application delay may be associated with a time domain behavior. For example, the first application delay / the second application delay / the third application delay of CSI report configurations with different time domain behaviors may be different.

[0290] In some embodiments, the first application delay / the second application delay / the third application delay may be associated with ACK (acknowledgement (message)). The UE uses the first application delay / the second application delay / the third application delay to perform CSI-RS reception / measurement or report CSI after ACK.

[0291] In some embodiments, the first application delay / the second application delay / the third application delay may be associated with the PUSCH processing time, the CSI calculation time, or the PDSCH decoding time. For example, the first application delay / the second application delay / the third application delay is greater than or equal to the PUSCH processing time, the CSI calculation time, or the PDSCH decoding time.

[0292] In one embodiment, triggering the triggering state means that the CSI reporting configuration associated with the triggering state is triggered, activated, or valid.

[0293] In one embodiment, the CSI reporting configuration is triggered or activated or valid, which means that the UE may report CSI according to the CSI reporting configuration.

[0294] In one embodiment, the CSI reporting configuration is deactivated or invalid, meaning that the UE cannot report CSI according to the CSI reporting configuration.

[0295] In one embodiment, the CSI-RS resource configuration or the CSI-RS resource is deactivated or invalid, which means that the UE cannot perform reception / measurement based on the CSI-RS according to the CSI-RS resource configuration or the CSI-RS resource.

[0296] In one embodiment, if the triggering state is not triggered or deactivated or invalid, the UE does not need to report CSI according to the CSI reporting configuration (in the triggering state).

[0297] In one embodiment, if the triggering state is not triggered or is not activated or is invalid, the CSI-RS resource configuration associated with the CSI reporting configuration (in the triggered state) cannot be used.

[0298] In one embodiment, the CSI-RS resource configuration cannot be used, meaning that the UE does not receive CSI-RS on the CSI-RS resource (of the CSI-RS resource configuration).

[0299] In one embodiment, the CSI-RS resource configuration cannot be used, meaning that the BS (e.g., gNB) does not send CSI-RS on the resources of the CSI-RS resource configuration.

[0300] In some embodiments, if the trigger state is triggered and / or if the aperiodic CSI reporting configuration is triggered, the activation of the CSI reporting configuration starts after the application delay and ends at the end of the scheduled PUSCH containing the report associated with the aperiodic CSI-RS. If the semi-persistent or periodic CSI reporting configuration is triggered, the activation of the CSI reporting configuration starts after the application delay and ends after the semi-persistent CSI reporting configuration is deactivated by DCI or MAC CE.

[0301] In some embodiments, the aperiodic CSI-RS is associated with a CSI reporting configuration triggered by the first signaling.The aperiodic CSI-RS resource is active after applying a delay and ends at the end of a scheduled PUSCH containing a report associated with the aperiodic CSI-RS.

[0302] In some embodiments, for semi-persistent CSI-RS or periodic CSI-RS, the semi-persistent CSI-RS or periodic CSI-RS is active after applying a delay and ends when a deactivation indication is applied.

[0303] In some embodiments, if the CSI report configuration is triggered, the CSI-RS resource configuration associated with the CSI report configuration is also triggered. The TCI state of the CSI-RS resource configuration may be determined by or based on at least one of the following:

[0304] - the UE assumes that the TCI state or QCL (quasi co-location) assumption of the CSI-RS resource configuration is the same as the first TCI state or QCL assumption applied to the CORESET (Control Resource Set) for PDCCH (Physical Downlink Control Channel) transmission within the active BWP (Bandwidth Part) of the serving cell,

[0305] - the TCI state indicated by the first signaling,

[0306] - the TCI state associated with the trigger state,

[0307] -TCI state or QCL assumption, which is the same as the first signaling, or

[0308] -QCL with SSB.

[0309] In some embodiments, the UE reports UE capabilities to the BS, where the UE capabilities may at least include / indicate: whether the trigger state list is supported, the number of supported trigger state lists, and whether the information indicated by the first signaling is supported.

[0310] In some embodiments, the UE reports UE assistance information to the BS. The UE assistance information may include / indicate at least one of the following: a preferred maximum number of ports, a preferred pattern, or a fallback query / request. The fallback query indicates that the UE wants to fall back to the original configuration, or the UE wants to fall back to the baseline configuration. The baseline configuration may be predefined or configured by high-level signaling.

[0311] In some embodiments, if the event occurs, the first signaling indication is enabled. In one embodiment, the first signaling indication being enabled means that the gNB can send the first signaling to the UE. In one embodiment, the first signaling indication being enabled means that the UE monitors the first signaling. In one embodiment, the first signaling indication being enabled means that the field exists.

[0312] In one embodiment, the above event includes at least one of the following:

[0313] - Receiving RRC signaling configured to enable the first signaling indication.

[0314] - receiving RRC signaling configured to enable the trigger state list, or

[0315] - A specific trigger state list is configured (the specific trigger state list can refer to the above trigger state list).

[0316] Fig.11A schematic diagram of a wireless terminal 110 according to an embodiment of the present disclosure is provided. The wireless terminal 110 may be a user equipment (UE), a mobile phone, a laptop, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. The wireless terminal 110 may include a processor 1100 such as a microprocessor or an application specific integrated circuit (ASIC), a storage unit 1110, and a communication unit 1120. The storage unit 1110 may be any data storage device that stores program code 1112 accessed and executed by the processor 1100. Embodiments of the storage unit 1110 include, but are not limited to, a subscriber identity module (SIM), a read-only memory (ROM), a flash memory, a random access memory (RAM), a hard disk, and an optical data storage device. The communication unit 1120 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 1100. In one embodiment, the communication unit 1120 communicates with the user via a communication device. Fig.11 At least one antenna 1122 is shown for transmitting and receiving signals.

[0317] In one embodiment, the storage unit 1110 and the program code 1112 may be omitted, and the processor 1100 may include a storage unit with stored program code.

[0318] Processor 1100 may implement any of the steps in the exemplary embodiments on wireless terminal 110 , for example, by executing program code 1112 .

[0319] The communication unit 1120 may be a transceiver. Alternatively or additionally, the communication unit 1120 may combine a transmission unit and a reception unit configured to respectively transmit and receive signals to and from a wireless network node (eg, a base station).

[0320] Fig.12A schematic diagram of a radio network node 120 according to an embodiment of the present disclosure is provided. The radio network node 120 may be a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN) node, a next generation RAN (NG-RAN) node, a gNB, an eNB, a gNB central unit (gNB-CU), a gNB distributed unit (gNB-DU), a data network, a core network, or a radio network controller (RNC), and is not limited thereto. In addition, the radio network node 120 may include (execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user location function (UPF), a policy control function (PCF), an application function (AF), etc. The radio network node 120 may include a processor 1200 such as a microprocessor or an ASIC, a storage unit 1210, and a communication unit 1220. The storage unit 1210 may be any data storage device that stores a program code 1212 accessed and executed by the processor 1200. Examples of the storage unit 1210 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 1220 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 1200. In one example, the communication unit 1220 communicates with the processor 1200 via a Fig.12 At least one antenna 1222 is shown for transmitting and receiving signals.

[0321] In one embodiment, storage unit 1210 and program code 1212 may be omitted. Processor 1200 may include a storage unit with stored program code.

[0322] The processor 1200 may implement any of the steps described in the example embodiments on the radio network node 120 , for example, via executing the program code 1212 .

[0323] The communication unit 1220 may be a transceiver. Alternatively or additionally, the communication unit 1220 may combine a transmission unit and a reception unit configured to respectively transmit and receive signals to and from a wireless terminal (eg, a user equipment or another wireless network node).

[0324] Fig.13 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.13 The method shown may be used in a wireless terminal (e.g., UE) and includes the following steps:

[0325] Step 1301: Receive high-layer signaling including CSI report configuration information from a radio network node.

[0326] Step 1302: Receive first signaling including a CSI report triggering status indication and / or a pattern indication from a radio network node.

[0327] Step 1303: Report CSI according to the higher layer signaling and the first signaling.

[0328] exist Fig.13 In the present invention, a wireless terminal receives high-layer signaling (e.g., RRC signaling) and a first signaling from a wireless network node (e.g., a BS). The high-layer signaling includes CSI report configuration information, and the first signaling includes a CSI report trigger state indication and / or a pattern indication (e.g., for triggering at least one trigger state and / or CSI report configuration in the CSI report configuration information). In some embodiments, the CSI report trigger state indication is a CSI-RS configuration indication. In some embodiments, the CSI report trigger state indication is the above-mentioned parameter included in the first signaling. Based on the high-layer signaling and the first signaling, the wireless network reports the CSI to the wireless network node. For example, the wireless terminal may perform measurements on the CSI, and / or generate the CSI, and / or send (multiple) CSI reports to the wireless network node.

[0329] In one embodiment, the CSI report configuration information includes at least one of the following: CSI report configuration, CSI-RS resource configuration, or trigger state list. Note that the details of the CSI report configuration, CSI-RS resource configuration, and trigger state list can refer to the above embodiments.

[0330] In one embodiment, the first signaling includes at least one of DCI or MAC CE. For example, the DCI may be a group common DCI, a broadcast DCI, or a multicast DCI.

[0331] The detailed components / parameters included in the first signaling (ie, the DCI and / or MAC CE included in the first signaling, and the pattern indication) may refer to the above-mentioned embodiments.

[0332] In one embodiment, DCI and MAC CE are used to indicate different triggering states in CSI report configuration information.

[0333] In one embodiment, no earlier than a first delay after the first signaling is received, the CSI is measured.

[0334] In one embodiment, the CSI is reported no earlier than a second delay after the first signaling is received.

[0335] In one embodiment, the CSI is reported no earlier than a third delay after the CSI is measured.

[0336] In one embodiment, the wireless terminal reports the CSI according to the high-layer signaling and the first signaling in the following manner:

[0337] Triggering CSI report configuration according to the higher layer signaling and the first signaling, and / or

[0338] A CSI reference signal resource configuration associated with the triggered CSI reporting configuration is triggered.

[0339] In this embodiment, the TCI state of the CSI reference signal resource configuration is the same as the first TCI state of the control resource set for the physical downlink control channel in the active bandwidth portion of the serving cell. As an alternative, the TCI state of the CSI reference signal resource configuration is indicated by the first signaling. As another alternative, the TCI state of the CSI reference signal resource configuration is associated with the trigger state. As yet another alternative, the TCI state of the CSI reference signal resource configuration is the same as the TCI state of the first signaling. As another alternative, the TCI state of the CSI reference signal resource configuration has a QCL relationship with the SSB.

[0340] In one embodiment, the wireless terminal sends assistance information including the maximum number of ports to the wireless network node.

[0341] Fig.14 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.14 The method shown may be used in a radio network node (e.g., a BS or a gNB) and includes the following steps:

[0342] Step 1401: Send high-layer signaling including CSI report configuration information to a wireless terminal.

[0343] Step 1402: Send a first signaling including a CSI report trigger status indication and / or a pattern indication to a wireless terminal.

[0344] Step 1403: Receive CSI report from wireless terminal.

[0345] In this embodiment, the radio network node sends a high-layer signaling including CSI report configuration information to a wireless terminal (e.g., UE). The radio network node also sends a first signaling including a CSI report trigger state indication and / or a pattern indication to the wireless terminal, for example, to trigger at least one trigger state and / or CSI report configuration in the CSI report configuration information. Therefore, the radio network node can receive the CSI report and can optimize / adjust the communication parameters used for communicating with the wireless terminal accordingly.

[0346] In one embodiment, the CSI report configuration information includes at least one of the following: CSI report configuration, CSI-RS resource configuration, or trigger state list. Note that the details of the CSI report configuration, CSI-RS resource configuration, and trigger state list can refer to the above embodiments.

[0347] In one embodiment, the first signaling includes at least one of DCI or MAC CE. For example, the DCI may be a group common DCI, a broadcast DCI, or a multicast DCI.

[0348] The detailed components / parameters included in the first signaling (ie, the DCI and / or MAC CE, and / or pattern indication included in the first signaling) may refer to the above embodiments.

[0349] In one embodiment, DCI and MAC CE are used in CSI reporting configuration information to indicate different triggering states.

[0350] In one embodiment, the radio network node receives assistance information including a maximum number of ports from the wireless terminal.

[0351] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only, and not by way of limitation. Similarly, various figures may depict exemplary architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, these persons will understand that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as will be appreciated by those of ordinary skill in the art, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0352] It should also be understood that any reference to an element using the names "first", "second", etc. herein generally does not limit the number or order of these elements. Instead, these names can be used as a convenient means of distinguishing two or more elements or element instances in this article. Therefore, the reference to the first element and the second element does not mean that only two elements can be used or that the first element must be in some way before the second element.

[0353] In addition, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols such as may be referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0354] Those skilled in the art will further understand that any of the various illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in conjunction with the various aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of the two), firmware, various forms of programs or design codes including instructions (for convenience, may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0355] In order to clearly illustrate this interchangeability of hardware, firmware and software, the functions of various illustrative components, blocks, units, circuits and steps have been generally described above. Whether such functions are implemented as hardware, firmware or software, or a combination of these technologies depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation decisions do not lead to deviations from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. can be configured to perform one or more functions of the functions described herein. The terms "configured to" or "configured for" used herein with respect to a specified operation or function refer to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specified operation or function.

[0356] In addition, it will be understood by those skilled in the art that the various illustrative logic blocks, units, devices, components and circuits described herein may be implemented or performed within an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, or any combination thereof. The logic blocks, units and circuits may also include antennas and / or transceivers to communicate with various components within a network or within a device. The general-purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration for performing the functions described herein. If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented as software stored on a computer-readable medium.

[0357] Computer-readable media include both computer storage media and communication media, and communication media include any media that can transfer a computer program or code from one place to another. Storage media can be any available media that a computer can access. As an example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other media that can be used to store desired program codes in the form of instructions or data structures and can be accessed by a computer.

[0358] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for the purpose of discussion, various units are described as discrete units; however, as is clear to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.

[0359] In addition, memory or other storage devices and communication components can be used in embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is clear that any appropriate functional distribution between different functional units, processing logic elements or domains can be used without departing from the present disclosure. For example, the functions shown as being performed by a separate processing logic element or controller can be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is only a reference to an appropriate means for providing the function, and does not represent a strict logical or physical structure or organization.

[0360] Various modifications to the implementations described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other implementations without departing from the scope of the claims. Therefore, the present disclosure is not intended to be limited to the implementations shown herein, but should be consistent with the widest scope consistent with the novel features and principles disclosed herein, as described in the following claims.

Claims

1. A wireless communication method for use in a wireless terminal, the method comprising: receiving high-layer signaling including channel state information (CSI) report configuration information from a radio network node, receiving a first signaling including a CSI report triggering state indication or a pattern indication from the radio network node, and Report the CSI according to the high-layer signaling and the first signaling.

2. The wireless communication method according to claim 1, wherein the CSI report configuration information comprises at least one of the following: CSI report configuration, CSI-RS resource configuration, or Trigger status list.

3. The wireless communication method according to claim 2, wherein the trigger state list includes trigger states associated with CSI report configurations, and the time domain behavior of the CSI report configuration associated with the trigger state list includes multiple time domain behaviors.

4. The wireless communication method according to claim 2 or 3, wherein each trigger state in the trigger state list is associated with multiple CSI reporting configurations with the same or different time domain behaviors.

5. A wireless communication method according to claim 3 or 4, wherein the time domain behavior associated with each trigger state includes at least one of the following: periodic, non-periodic, semi-persistent, semi-persistent on a physical uplink control channel PUCCH, or semi-persistent on a physical uplink shared channel PUSCH. 6 . The wireless communication method according to claim 2 , wherein each trigger state in the trigger state list is associated with at least one periodic CSI report configuration.

7. The wireless communication method according to any one of claims 2 to 6, wherein the trigger state list comprises at least one subset trigger state list, wherein each subset trigger state list is associated with only one time domain behavior.

8. The wireless communication method according to claim 7, wherein the at least one subset trigger state list comprises at least one of the following: Aperiodic trigger status list, Periodic trigger status list, Semi-persistent trigger state list, A list of semi-persistent trigger states on PUSCH, or List of semi-persistent trigger states on PUCCH.

9. The wireless communication method according to claim 7 or 8, wherein when one of the trigger states with the same index in the different subset trigger state lists is triggered, the trigger state with the same index is triggered.

10. The wireless communication method according to any one of claims 2 to 9, wherein each trigger state in the trigger state list is associated with at least one of the following: One or more CSI reporting configurations, one or more transmission configuration indicator (TCI) states, One or more CSI reference signal resource configurations, a time offset between a signaling triggering the trigger state and a time slot configured for reporting the CSI based on a CSI reporting configuration corresponding to the trigger state, The difference in power control offset, Power control offset, Power control offset synchronization signal SS, The difference in the number of ports is used to determine the number of ports based on which the CSI is determined or the number of ports for which the CSI reference signal resource is configured, The number of repetitions indicates the number of times the CSI reference signal resource is repeated in the time domain, or Number of ports.

11. The wireless communication method according to any one of claims 2 to 10, wherein the CSI reporting configuration is associated with the following items: multiple CSI resource configurations for channel measurement, and / or multiple non-zero power CSI reference signal resource configurations for interference measurement.

12. A wireless communication method according to any one of claims 1 to 11, wherein the periodic CSI report configuration in the CSI report configuration information is associated with at least one of the following: a non-periodic CSI report configuration, a trigger state in a non-periodic trigger state list, a trigger state in a semi-continuous trigger state list, or a semi-continuous CSI report configuration.

13. The wireless communication method according to any one of claims 1 to 12, wherein the semi-persistent CSI reporting configuration in the CSI reporting configuration information is associated with the following items: a non-periodic CSI reporting configuration, or a trigger state in a non-periodic trigger state list.

14. The wireless communication method according to any one of claims 1 to 13, wherein the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered if at least one of the following events occurs: an aperiodic CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, A trigger state associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, or A semi-persistent CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered.

15. The wireless communication method according to any one of claims 1 to 14, wherein if a CSI reporting configuration in the CSI reporting configuration information and associated with a CSI resource configuration is triggered as valid, at least part of the CSI reference signal resources included in the CSI resource configuration is valid. The wireless communication method according to claim 15 , wherein the valid CSI reference signal resource satisfies at least one condition.

17. The wireless communication method according to claim 15 or 16, wherein the valid CSI reference signal resource satisfies the following condition: the number of ports of the valid CSI resources included in the CSI resource configuration is less than or equal to the number of ports of the CSI report configuration associated with the CSI resource configuration.

18. The wireless communication method according to any one of claims 15 to 17, wherein the valid CSI reference signal resource satisfies the following condition: the valid CSI reference signal resource is not configured with tracking reference signal information and / or repetition information.

19. The wireless communication method according to any one of claims 1 to 18, wherein the first signaling comprises at least one of the following: downlink control information DCI, or a media access control MAC control element CE. 20 . The wireless communication method according to claim 19 , wherein the DCI is a group common DCI, a broadcast DCI, or a multicast DCI.

21. The wireless communication method according to claim 19 or 20, wherein the first signaling comprises at least one of the following: an activation indication associated with activating at least one CSI reporting configuration in the CSI reporting configuration information, a deactivation indication associated with deactivating at least one CSI reporting configuration in the CSI reporting configuration information, indicating whether to activate or deactivate a field of the trigger state indicated in the first signaling, a serving cell identifier, indicating a serving cell to which the first signaling is applied, a bandwidth part identifier, indicating a downlink bandwidth part to which the first signaling is applied, a trigger status list identifier, indicating activation or deactivation of a trigger status list for reporting the CSI, CSI report configuration identifier, indicating the CSI report configuration, TCI status, TCI status list, Trigger status indication, a first time offset between the first signaling and the time slot in which the CSI is reported, a second time offset between the first signaling and a time slot in which the CSI reference signal is received, The difference in power control offset, Power control offset, Power control offset synchronization signal SS, The difference in the number of ports is used to determine the number of ports based on which the CSI is determined or the number of ports for which the CSI reference signal resource is configured, The number of repetitions indicates the number of times the CSI reference signal resource is repeated in the time domain. CSI report configuration identifier, Port number indication, or A new CSI calculation start indication for the CSI is regenerated based on the first signaling and the CSI report configuration information.

22. The wireless communication method according to any one of claims 19 to 21, wherein the DCI and the MAC CE are used to indicate different triggering states in the CSI report configuration information.

23. The wireless communication method according to any one of claims 1 to 22, wherein: No earlier than a first delay after the first signaling is received, the CSI is measured or a CSI reference signal is received, and / or No earlier than a second delay after the first signaling is received, the CSI is reported, and / or The CSI is reported no earlier than a third delay after the CSI is measured or a CSI reference signal is received.

24. The wireless communication method according to any one of claims 1 to 23, wherein reporting the CSI according to the high-layer signaling and the first signaling comprises: triggering CSI report configuration according to the high-layer signaling and the first signaling, and triggering a CSI reference signal resource configuration associated with the triggered CSI reporting configuration, in: The TCI state of the CSI reference signal resource configuration is the same as the first TCI state, and the first TCI state is applied to a control resource set used for a physical downlink control channel within the active bandwidth part of the serving cell, The TCI state of the CSI reference signal resource configuration is indicated by the first signaling, The TCI state of the CSI reference signal resource configuration is associated with the trigger state, The TCI state of the CSI reference signal resource configuration is the same as the TCI state of the first signaling, or The TCI state of the CSI reference signal resource configuration has a quasi-co-location relationship with the synchronization signal block SSB.

25. The wireless communication method according to any one of claims 1 to 24, further comprising: Auxiliary information including at least one of the following is sent to the wireless network node: a maximum number of ports, a preferred pattern, or a fallback query.

26. A wireless communication method for use in a wireless network node, the method comprising: Sending high-level signaling including channel state information (CSI) report configuration information to the wireless terminal, sending a first signaling including a CSI report triggering state indication or a pattern indication to the wireless terminal, and A CSI report is received from the wireless terminal.

27. The wireless communication method according to claim 26, wherein the CSI report configuration information comprises at least one of the following: CSI report configuration, CSI-RS resource configuration, or Trigger status list.

28. The wireless communication method according to claim 27, wherein the trigger state list includes trigger states associated with CSI report configurations, and the time domain behavior of the CSI report configuration associated with the trigger state list includes multiple time domain behaviors.

29. The wireless communication method according to claim 27 or 28, wherein each trigger state in the trigger state list is associated with multiple CSI reporting configurations with the same or different time domain behaviors.

30. A wireless communication method according to claim 28 or 29, wherein the time domain behavior associated with each trigger state includes at least one of the following: periodic, non-periodic, semi-persistent, semi-persistent on a physical uplink control channel PUCCH, or semi-persistent on a physical uplink shared channel PUSCH.

31. The wireless communication method according to any one of claims 27 to 30, wherein each trigger state in the trigger state list is associated with at least one periodic CSI report configuration.

32. The wireless communication method according to any one of claims 27 to 31, wherein the trigger state list comprises at least one subset trigger state list, wherein each subset trigger state list is associated with only one time domain behavior.

33. The wireless communication method according to claim 32, wherein the at least one subset trigger state list comprises at least one of the following: Aperiodic trigger status list, Periodic trigger status list, Semi-persistent trigger state list, A list of semi-persistent trigger states on PUSCH, or List of semi-persistent trigger states on PUCCH.

34. The wireless communication method according to claim 32 or 33, wherein when one of the trigger states with the same index in the different subset trigger state lists is triggered, the trigger state with the same index is triggered.

35. The wireless communication method according to any one of claims 27 to 34, wherein each trigger state in the trigger state list is associated with at least one of the following: One or more CSI reporting configurations, one or more transmission configuration indicator (TCI) states, One or more CSI reference signal resource configurations, a time offset between a signaling triggering the trigger state and a time slot configured for reporting the CSI based on a CSI reporting configuration corresponding to the trigger state, The difference in power control offset, Power control offset, Power control offset synchronization signal SS, The difference in the number of ports is used to determine the number of ports based on which the CSI is determined or the number of ports for which the CSI reference signal resource is configured, The number of repetitions indicates the number of times the CSI reference signal resource is repeated in the time domain, or Number of ports.

36. A wireless communication method according to any one of claims 27 to 35, wherein the CSI reporting configuration is associated with the following items: multiple CSI resource configurations for channel measurement, and / or multiple non-zero power CSI reference signal resource configurations for interference measurement.

37. A wireless communication method according to any one of claims 26 to 36, wherein the periodic CSI report configuration in the CSI report configuration information is associated with at least one of the following: a non-periodic CSI report configuration, a trigger state in a non-periodic trigger state list, a trigger state in a semi-continuous trigger state list, or a semi-continuous CSI report configuration.

38. A wireless communication method according to any one of claims 26 to 37, wherein the semi-persistent CSI reporting configuration in the CSI reporting configuration information is associated with the following items: a non-periodic CSI reporting configuration, or a trigger state in a non-periodic trigger state list.

39. The wireless communication method according to any one of claims 26 to 38, wherein the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered if at least one of the following events occurs: an aperiodic CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, A trigger state associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered, or A semi-persistent CSI reporting configuration associated with the periodic CSI reporting configuration or the semi-persistent CSI reporting configuration is triggered.

40. A wireless communication method according to any one of claims 26 to 39, wherein if a CSI reporting configuration in the CSI reporting configuration information and associated with a CSI resource configuration is triggered as valid, at least part of the CSI reference signal resources included in the CSI resource configuration is valid. The wireless communication method according to claim 40 , wherein the valid CSI reference signal resource satisfies at least one condition.

42. The wireless communication method according to claim 40 or 41, wherein the valid CSI reference signal resource satisfies the following condition: the number of ports of the valid CSI resources included in the CSI resource configuration is less than or equal to the number of ports of the CSI report configuration associated with the CSI resource configuration.

43. The wireless communication method according to any one of claims 40 to 42, wherein the valid CSI reference signal resource satisfies the following condition: the valid CSI reference signal resource is not configured with tracking reference signal information and / or repetition information.

44. The wireless communication method according to any one of claims 26 to 43, wherein the first signaling comprises at least one of the following: downlink control information DCI, or a media access control MAC control element CE.

45. The wireless communication method of claim 44, wherein the DCI is a group common DCI, a broadcast DCI, or a multicast DCI.

46. ​​The wireless communication method according to claim 44 or 45, wherein the first signaling comprises at least one of the following: an activation indication associated with activating at least one CSI reporting configuration in the CSI reporting configuration information, a deactivation indication associated with deactivating at least one CSI reporting configuration in the CSI reporting configuration information, indicating whether to activate or deactivate a field of the trigger state indicated in the first signaling, a serving cell identifier, indicating a serving cell to which the first signaling is applied, a bandwidth part identifier, indicating a downlink bandwidth part to which the first signaling is applied, a trigger status list identifier, indicating activation or deactivation of a trigger status list for reporting the CSI, CSI report configuration identifier, indicating the CSI report configuration, TCI status, TCI status list, Trigger status indication, a first time offset between the first signaling and the time slot in which the CSI is reported, a second time offset between the first signaling and a time slot in which the CSI reference signal is received, The difference in power control offset, Power control offset, Power control offset synchronization signal SS, The difference in the number of ports is used to determine the number of ports as follows: the number of ports for which the CSI is determined based on the number of ports or the number of ports for which the CSI reference signal resource is configured, The number of repetitions indicates the number of times the CSI reference signal resource is repeated in the time domain. CSI report configuration identifier, Port number indication, or A new CSI calculation start indication for the CSI is regenerated based on the first signaling and the CSI report configuration information.

47. The wireless communication method according to any one of claims 44 to 46, wherein the DCI and the MAC CE are used to indicate different triggering states in the CSI report configuration information.

48. The wireless communication method according to any one of claims 26 to 47, further comprising: Assistance information including at least one of the following is received from the wireless terminal: a maximum number of ports, a preferred pattern, or a fallback query.

49. A wireless terminal, comprising: The communication unit is configured as follows: receiving high-layer signaling including channel state information (CSI) report configuration information from a radio network node, and receiving a first signaling including a CSI report triggering state indication or a pattern indication from the radio network node, and The processor is configured to report CSI according to the high-layer signaling and the first signaling.

50. The wireless terminal according to claim 49, wherein the processor is further configured to perform the wireless communication method according to any one of claims 2 to 25.

51. A wireless network node, comprising: The communication unit is configured as follows: Sending high-level signaling including channel state information (CSI) report configuration information to the wireless terminal, sending a first signaling including a CSI report triggering state indication or a pattern indication to the wireless terminal, and A CSI report is received from the wireless terminal.

52. The radio network node according to claim 51, further comprising a processor configured to perform the wireless communication method according to any one of claims 27 to 48.

53. A computer program product comprising computer readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method according to any one of claims 1 to 48.

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