Beam report transmission method and device, and computer-readable storage medium

Abstract

Provided in the present application are a beam report transmission method and device, and a computer-readable storage medium. The method comprises: in response to a beam report being triggered, transmitting a beam report notification on a corresponding uplink channel on the basis of a timer and / or counter associated with beam report notification transmission, and transmitting the beam report on the corresponding uplink channel on the basis of the timer and / or counter associated with beam report transmission, wherein the beam report is triggered on the basis of a measurement result of at least one group of reference signals associated with a beam report configuration and a trigger event associated with the beam report configuration, and the beam report transmitted on the uplink channel is determined on the basis of the measurement result of the at least one group of reference signals. The method can effectively support event-triggered beam report transmission or beam report transmission actively started by a terminal device.

Description

Beam report transmission method, device and computer readable storage medium TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a beam report transmission method, device and computer readable storage medium. BACKGROUND

[0002] In a wireless communication system, beam report is very important for assisting the network to provide better transmission configuration to a user terminal. The beam report can be aperiodic, semi-persistent or periodic beam report, or an event-triggered beam report. The event-triggered beam report means that when the condition of a trigger event associated with the beam report is satisfied, the user terminal initiates the corresponding beam report. In order to better support the event-triggered beam report, further improvement is needed for related technologies. SUMMARY

[0003] The present application provides a beam report transmission method, device and computer readable storage medium.

[0004] In a first aspect, the present application provides a beam report transmission method applied to a first communication node, comprising:

[0005] In response to the beam report being triggered, transmitting a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification transmission, and transmitting the beam report on the corresponding uplink channel based on a timer and / or a counter associated with the beam report transmission;

[0006] Wherein, the beam report is transmitted on the uplink channel based on the measurement result of at least one group of reference signals associated with the beam report configuration and the trigger event associated with the beam report configuration being triggered, and the beam report transmitted on the uplink channel is determined by the measurement result of the at least one group of reference signals.

[0007] In a second aspect, the present application provides a communication node, comprising a memory and a processor, the memory stores a computer program, and the processor implements the steps of the beam report transmission method provided in the first aspect of the present application when executing the computer program.

[0008] In a third aspect, the present application provides a computer readable storage medium, the storage medium stores a computer program, and the computer program implements the steps of the beam report transmission method provided in the first aspect of the present application when executed by a processor.

[0009] Further description is provided in the following description, specific embodiments, and claims regarding the above embodiments and other aspects of the application and implementation thereof. BRIEF DESCRIPTION OF DRAWINGS

[0010] FIG. 1 is a networking schematic diagram of a wireless communication system provided by an embodiment of the application;

[0011] FIG. 2 is a flow schematic diagram of a beam report transmission method provided by an embodiment of the application;

[0012] FIG. 3 is a schematic diagram of a beam report triggering procedure provided by an embodiment of the application;

[0013] FIG. 4 is a schematic diagram of transmission corresponding to beam report triggering provided by an embodiment of the application;

[0014] FIG. 5 is a schematic diagram of a beam report transmission and beam report notification transmission procedure provided by an embodiment of the application;

[0015] FIG. 6 is a structural schematic diagram of a beam report transmission apparatus provided by an embodiment of the application;

[0016] FIG. 7 is a structural schematic diagram of a communication node provided by an embodiment of the application. DETAILED DESCRIPTION

[0017] It should be understood that the specific embodiments described herein merely exemplify the application and do not limit the application. The embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0018] The beam report transmission method provided by the application can be applied to various wireless communication systems, such as long term evolution (LTE) systems, 4th-generation (4G) systems, 5th-generation (5G) systems, LTE and 5G hybrid architecture systems, 5G new radio (NR) systems, and new communication systems that will appear in future communication development, such as 6th-generation (6G) systems, etc. FIG. 1 is a networking schematic diagram of a wireless communication system provided by an embodiment of the application. As shown in FIG. 1, the wireless communication system includes a terminal device 110, an access network device 120, and a core network device 130.

[0019] The terminal device 110 can be a device with wireless transceiving function, which can be deployed on land (such as indoors or outdoors, handheld, wearable or vehicle-mounted, etc.), on water (such as ships, etc.), or in the air (such as airplanes, balloons and satellites, etc.). Some examples of the terminal device 110 include a user equipment (UE), a mobile phone, a mobile station, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a netbook, a personal digital assistant (PDA), etc., which can be networked user equipment, or a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc., or an Internet of Things (IoT) node in Internet of Things, or a vehicle communication device in vehicle-to-vehicle communication, or an entertainment, game device or system, or a global positioning system device, etc. Embodiments of the present application do not limit the specific technology and specific device form of the terminal device, and in addition, the terminal device can be referred to simply as a terminal.

[0020] The access network device 120 is an access device through which the terminal device 110 accesses the wireless communication system in a wireless manner, and can be a base station, an evolved NodeB (eNB or eNodeB) in Long Term Evolution advanced (LTEA), a transmission reception point (TRP), a base station or gNB in a 5G mobile communication system, an access node in a future mobile communication system, or an access node in a Wireless Fidelity (WiFi) system, etc. The base station can include various macro base stations, micro base stations, home base stations, wireless remote units, routers, WIFI devices, various network side devices such as primary cells and secondary cells, and location management function (LMF) devices. It can also be a module or unit that completes part of the functions of the base station, for example, it can be a central unit (CU) or a distributed unit (DU). The embodiments of the present application do not limit the specific technology and specific device form adopted by the access network device, and in addition, the access network device can be referred to simply as a base station.

[0021] The core network device 130 can include an access and mobility management network element and a session management network element. Exemplarily, the terminal device 110 can access the core network through the access network device 120, thereby realizing data transmission.

[0022] The embodiments of the present application provide a technical solution for beam report transmission, aiming to support event-triggered beam report transmission or beam report transmission initiated by a terminal device. The event-triggered beam report refers to beam report transmission triggered by the terminal device when the condition of the trigger event associated with the beam report is met.

[0023] FIG. 2 is a flowchart of a beam report transmission method provided by the embodiments of the present application. The method is applied to a first communication node, and in the present embodiment, the first communication node can be a terminal device. As shown in FIG. 2, the method can include:

[0024] S201, in response to the beam report being triggered, transmitting a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification transmission, and transmitting a beam report on a corresponding uplink channel based on a timer and / or a counter associated with the beam report transmission.

[0025] The beam report is transmitted on the uplink channel and is determined by measurement results of at least one set of reference signals associated with the beam report configuration and triggered by a triggering event associated with the beam report configuration.

[0026] In the embodiment, the beam report configuration is used to configure information related to beam report, such as information used to obtain measurement results associated with beam report, and related information used for beam report transmission, etc. Referring to FIG. 3, the above-mentioned beam report configuration is associated with a reference signal resource set used for beam measurement, and a triggering event used to evaluate whether a beam report is triggered, the reference signal resource set includes at least one group of reference signals (such as a first group of reference signals and a second group of reference signals), wherein one group of reference signals is configured by the beam report configuration, and another group of reference signals is determined by the triggering event associated with the beam report configuration. Of course, the first group of reference signals and the second group of reference signals shown in FIG. 3 are only examples and do not specifically limit the number of reference signal groups. Based on at least one group of reference signals, the terminal device obtains corresponding measurement results, which are used for evaluation of the evaluation condition associated with the triggering event. When the measurement results meet the evaluation condition, the terminal device generates a corresponding event instance, and determines whether to trigger the beam report transmission based on the event instance timer and / or the event instance counter associated with the event instance. After determining that the beam report is triggered, the terminal device determines the beam report based on the measurement results of at least one group of reference signals, and transmits the beam report on the corresponding uplink channel. Wherein, the beam report is a terminal device initiated beam report or an event triggered beam report. Optionally, the terminal device initiated beam report or the event triggered beam report contains a layer 1 reference signal received power (L1-RSRP) or a layer 1 signal-to-noise and interference ratio (L1-SINR) report associated with the triggering event, or a channel state information (CSI) report associated with the triggering event. For example, for a CSI report, the corresponding report quantity can be configured to contain one or more of the following: channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), CSI-reference signal resource indicator (CRI), synchronization signal block resource indicator (SSBRI), signal-to-noise and interference ratio (SINR), or reference signal received power (RSRP).The CSI report reported by the terminal device is generated based on the configured reporting quantity and the corresponding CSI reference signal resource for measurement.

[0027] Optionally, the reference signal can include a synchronization signal block (SSB) or a channel state information-reference signal (CSI-RS).

[0028] The beam report configuration is further associated with or configured with an uplink channel for beam report transmission and an uplink channel for beam report notification transmission, the uplink channel for beam report transmission is associated with a corresponding timer and / or counter, and the uplink channel for beam report notification transmission is also associated with a corresponding timer and / or counter. The timer associated with the beam report notification transmission is used to determine whether the beam report notification transmission is enabled, and the beam report notification transmission is enabled when the timer associated with the beam report notification is not running, or the beam report notification transmission is enabled when the timer associated with the beam report notification and the timer associated with the beam report transmission are not running. The counter associated with the beam report notification transmission is used to accumulate the transmission times of the beam report notification, and the maximum transmission times of the beam report notification transmission can be set, and the transmission of the beam report notification is cancelled when the counter associated with the beam report notification transmission exceeds the maximum transmission times. The timer associated with the beam report transmission is used to determine whether the beam report transmission is enabled, and the beam report transmission is enabled when the timer associated with the beam report transmission is not running. The counter associated with the beam report transmission is used to accumulate the transmission times of the beam report, and the maximum transmission times of the beam report transmission can be set, and the transmission of the beam report is cancelled when the counter associated with the beam report transmission exceeds the maximum transmission times.

[0029] Referring to FIG. 4, after determining that the beam report is triggered, the terminal device first transmits a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification, the beam report notification being used to indicate to the network that the terminal device triggers the beam report. Then, the terminal device transmits the beam report on the corresponding uplink channel based on the timer and / or the counter associated with the beam report. The uplink channel is pre-configured by the network or scheduled by a downlink control information (DCI) format. Optionally, the uplink channel includes a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).

[0030] Optionally, the beam report notification can be indicated by a scheduling request (SR) associated with the beam report or by defining a new uplink control information (UCI) type to indicate the beam report notification.

[0031] By setting the corresponding counter for the transmission of the beam report and the beam report notification, the transmission of the beam report and the beam report notification can be repeated within the range of the transmission times corresponding to the counter, thereby improving the reliability of the transmission of the beam report. Meanwhile, by setting the corresponding timer for the transmission of the beam report notification and the beam report, the frequent transmission of the beam report notification and the beam report is avoided, and the transmission conflict with other channels is reduced.

[0032] In an embodiment, optionally, based on the definition or condition of the triggering event associated with the beam report configuration, the reference signal resource set for measurement associated with the beam report includes at least one set of reference signals, which are configured by the beam report configuration or determined by a transmission configuration indication state (TCI state), for example, determined by a reference signal with a quasi-co-location (QCL) type set as 'typeD' corresponding to the TCI state or determined by a QCL reference signal associated with the TCI state.

[0033] In one example, assuming the condition associated with the triggering event is ‘the quality of the current beam is lower than a determined threshold value’, the current beam is associated with the reference signal configured as QCL type ‘typeD’ associated with the indicated TCI state, or the current beam is associated with the reference signal configured as QCL type ‘typeD’ associated with the activated TCI state (which can be referred to as the first group of reference signals in the following description).

[0034] In one example, assuming the condition associated with the triggering event is ‘the quality of at least one new beam, such as L1-RSRP, is higher than a threshold value than the reference signal obtained in the TCI state with the Mth best quality in the activated TCI state’, the current beam is associated with the reference signal configured as QCL type ‘typeD’ associated with the activated TCI state (which can be referred to as the first group of reference signals in the following description), and the new beam is associated with the reference signal in the reference resource signal resource set configured by the beam report configuration (which can be referred to as the second group of reference signals in the following description).

[0035] In one example, assuming the condition associated with the triggering event is ‘the quality of at least one new beam, such as L1-RSRP, is higher than a threshold value than the current beam’, the current beam is associated with the reference signal configured as QCL type ‘typeD’ associated with the indicated TCI state (which can be referred to as the first group of reference signals in the following description), and the new beam is associated with the reference signal in the reference resource signal resource set configured by the beam report configuration (which can be referred to as the second group of reference signals in the following description).

[0036] Optionally, the terminal device can determine the cell identifier corresponding to the at least one group of reference signals associated with the beam report in at least one of the following manners, wherein the cell identifier can be a cell index or any information capable of identifying a cell.

[0037] Manner 1: In the case where the cell identifier is not included in the beam report configuration, the first group of reference signals determined according to the TCI state is associated with the cell where the beam report configuration is located, and the second group of reference signals configured by the beam report configuration is associated with the cell where the beam report configuration is located.

[0038] That is, in the case where the cell identifier is not included in the cell identifier indication field in the beam report configuration, the first group of reference signals determined according to the TCI state is associated with the cell where the beam report is configured, for example, the TCI state is applied in the cell. The second group of reference signals configured by the beam report configuration is associated with the cell where the beam report is configured, for example, the second group of reference signals is configured in the cell.

[0039] Manner 2: In the case that the cell indicator is included in the beam report configuration, the first set of reference signals determined according to the TCI state is related to the cell indicator in the beam report configuration, and the second set of reference signals configured according to the beam report configuration is related to the cell indicator in the beam report configuration.

[0040] That is, in the case that the cell indicator is included in the cell indicator indication field in the beam report configuration, the first set of reference signals determined according to the TCI state is related to the cell indicator, for example, the TCI state is applied in the cell corresponding to the cell indicator. The second set of reference signals configured according to the beam report configuration is related to the cell indicator, for example, the second set of reference signals is configured in the cell corresponding to the cell indicator.

[0041] Manner 3: The first set of reference signals determined according to the TCI state is related to the cell where the beam report configuration is located.

[0042] That is, the first set of reference signals determined according to the TCI state is related to the cell where the beam report is configured, for example, the TCI state is applied in the cell.

[0043] Manner 4: The second set of reference signals configured according to the beam report configuration is associated with the same cell indicator as the first set of reference signals determined according to the TCI state.

[0044] For example, both sets of reference signals are associated with the cell indicator of the reference signal configured as QCL type 'typeD' associated with the TCI state.

[0045] Manner 5: The first set of reference signals determined according to the TCI state is related to the first cell indicator, and the second set of reference signals configured according to the beam report configuration is related to the second cell indicator.

[0046] For example, the TCI state is applied in the cell corresponding to the first cell indicator, and the second set of reference signals is configured in the cell corresponding to the second cell indicator, and the first cell indicator and the second cell indicator are included in the beam report configuration.

[0047] At least one set of reference signals corresponding to the cell indicator is determined by at least one of the above manners, so as to obtain corresponding measurement results by measuring the reference signals of the corresponding cell, and whether to trigger the transmission of the beam report and to determine the beam report is determined based on the measurement results.

[0048] In one embodiment, optionally, for a beam report carried in an uplink channel on an uplink slot, the terminal device obtains the measurement result associated with the beam report based on at least one set of reference signals associated with the beam report configuration associated with the beam report, in order to enable the terminal device to obtain the measurement result, the reference signals need to satisfy at least one of the following conditions:

[0049] 1. The time domain position of the reference signals is not later than the CSI reference resource associated with the beam report configuration.

[0050] Wherein, the CSI reference resource is defined as a downlink slot in time domain. That is, the terminal device should obtain the measurement result associated with the beam report based on the reference signals in the reference signal resource set associated with the beam report which are not later than the CSI reference resource.

[0051] Optionally, the downlink slot corresponding to the CSI reference resource is determined by at least one of the following:

[0052] (1) The uplink slot where the beam report is transmitted.

[0053] (2) The uplink slot where the transmission of the latest uplink channel carrying the beam report notification.

[0054] (3) The minimum value greater than or equal to a predefined value such that the downlink slot corresponds to a valid downlink slot.

[0055] In one example, without considering the subcarrier spacing difference between uplink and downlink and the non-aligned frame boundary of carrier aggregation, the downlink slot corresponding to the CSI reference resource associated with the beam report is obtained by subtracting the minimum value greater than or equal to the predefined value from the index of the uplink slot where the beam report is transmitted.

[0056] In one example, without considering the subcarrier spacing difference between uplink and downlink and the non-aligned frame boundary of carrier aggregation, the downlink slot corresponding to the CSI reference resource associated with the beam report is obtained by subtracting the minimum value greater than or equal to the predefined value from the index of the uplink slot where the transmission of the latest uplink channel carrying the beam report notification is located.

[0057] Optionally, the predefined value is determined based on at least one of the following:

[0058] a. A value indicating the UE capability related to the first beam report reporting time, the first beam report being the beam report related to the triggering event.

[0059] b. a value indicating UE capability related to reporting time of the second beam report, the second beam report is a beam report not related to any triggering event.

[0060] For example, the second beam report can be an aperiodic, semi-persistent or periodic CSI report with RSRP or SINR as the reported quantity.

[0061] c. wherein X is a positive integer less than or equal to 4, u DL related to subcarrier spacing of the at least one group of reference signals.

[0062] wherein u DL may be the smallest subcarrier spacing among the at least one group of reference signals, or the subcarrier spacing of the first group of reference signals determined according to the TCI state, or the subcarrier spacing of the second group of reference signals configured according to the beam report configuration.

[0063] Optionally, for the same subcarrier spacing, the value used to indicate UE capability related to reporting time of the first beam report is less than or equal to the value used to indicate UE capability related to reporting time of the second beam report (for example, the second beam report can be an aperiodic, semi-persistent or periodic CSI report with RSRP or SINR as the reported quantity).

[0064] 2. The time domain locations of these reference signals should not be earlier than the reception of the first signaling.

[0065] wherein the first signaling is used to indicate that the updated TCI state or the updated activated TCI state list is applied, and the TCI state updated by the first signaling is associated with the at least one group of reference signals associated with the beam report.

[0066] The at least one group of reference signals used to obtain the measurement results associated with the beam report is determined by the TCI state, therefore, the time domain locations of these reference signals should not be earlier than the reception of the first signaling in time domain used to update the TCI state associated with the at least one group of reference signals. Optionally, the first signaling can be a high layer signaling, a physical layer signaling or a combination thereof.

[0067] 3. These reference signals should not be later than the transmission of the latest uplink channel carrying the beam report notification associated with the beam report.

[0068] When the terminal device triggers the transmission of the beam report, first, the terminal device transmits a beam report notification through a corresponding uplink channel to indicate to the network that the terminal device has triggered the transmission of the beam report, and therefore the time-domain position of the reference signals used to obtain the measurement results associated with the beam report should not be later than the transmission of the latest uplink channel carrying the beam report notification associated with the beam report.

[0069] In one embodiment, optionally, in the case where the beam report is indicated to be transmitted on an uplink channel scheduled or activated by a physical downlink control channel (PDCCH), the terminal device transmits the beam report in the following manner: if the first uplink symbol of the PDCCH-scheduled uplink channel is not earlier than a specific symbol, the beam report is transmitted on the PDCCH-scheduled uplink channel; if the first uplink symbol of the PDCCH-scheduled uplink channel is earlier than a specific symbol, the scheduling of the PDCCH is ignored, or the PDCCH-scheduled uplink channel is not transmitted, or the beam report is not transmitted on the PDCCH-scheduled uplink channel.

[0070] wherein the specific symbol is determined in at least one of the following ways:

[0071] (1) the specific symbol is the next uplink symbol after the processing time of the last symbol of the PDCCH.

[0072] (2) the specific symbol is the next uplink symbol after the processing time of the last symbol of the latest reference signal resource in time domain among at least one group of reference signals associated with the beam report.

[0073] wherein the at least one group of reference signals is used to obtain the measurement results associated with the beam report, and therefore the specific symbol can be the next uplink symbol after the processing time of the last symbol of the latest reference signal resource in time domain among the at least one group of reference signals.

[0074] (3) the specific symbol is the next uplink symbol after the last symbol of the PDCCH.

[0075] wherein the processing time is determined based on the value used to indicate the UE capability related to the first beam report reporting time.

[0076] In this way, the PDCCH-scheduled uplink channel is appropriate, thereby effectively supporting the transmission of the event-based beam report.

[0077] In one embodiment, optionally, the above-mentioned beam report is triggered further in association with one or more event instance timers and / or event instance counters, each of which is associated with a reference signal related to at least one set of reference signals associated with the beam report, such as the first set of reference signals determined according to the TCI state or the second set of reference signals configured according to the beam report configuration.

[0078] Optionally, the transmission of the beam report and / or the transmission of the beam report notification is triggered in case at least one of the one or more event instance counters corresponding to the beam report is not less than the configured maximum count number.

[0079] That is, when the measurement result associated with the beam report satisfies the evaluation condition defined by the triggering event, the terminal device generates an event instance, and the transmission of the beam report is triggered in case at least one of the one or more event instance counters corresponding to the beam report is not less than the configured maximum count number. Since the beam report notification needs to be transmitted before the transmission of the beam report, the transmission of the beam report notification is also triggered.

[0080] By setting the event instance counter, the ping-pong effect of the triggering of the beam report and / or the beam report notification can be avoided, and the triggering of the beam report transmission that is unreliable in the case of serious fluctuation of beam quality can be prevented.

[0081] Optionally, the triggering of the transmission of the beam report and / or the triggering of the transmission of the beam report notification is cancelled in case all of the one or more event instance timers corresponding to the beam report expire or stop. For example, the triggering of the transmission of the beam report and / or the triggering of the transmission of the beam report notification can be cancelled in case the event instance counter is not incremented by 1 before the one or more event instance timers corresponding to the beam report expire or stop. By setting the event instance timer, the stability between two measurement results can be improved.

[0082] That is, when the measurement result associated with the beam report satisfies the evaluation condition defined by the triggering event, the terminal device generates an event instance, and starts the corresponding event instance timer, and the triggering of the transmission of the beam report and / or the triggering of the transmission of the beam report notification is cancelled in case all of the one or more event instance timers corresponding to the beam report expire or stop.

[0083] In one embodiment, optionally, the terminal device cancels the triggering of the transmission of the beam report and resets all of the event instance counters associated with the beam report or stops all of the event instance timers associated with the beam report in case at least one of the following conditions is met:

[0084] 1. For a specific triggering event, when the TCI state with the Mth best quality in the active TCI state changes, M is a configurable positive integer.

[0085] For example, the condition associated with the specific triggering event is that 'the quality of at least one new beam, such as L1-RSRP, is higher than a threshold value than the reference signal obtained in the TCI state with the Mth best quality in the active TCI state', when the TCI state with the Mth best quality in the active TCI state changes, the terminal device needs to reacquire the measurement results associated with the beam report, therefore, the terminal device can cancel the triggering of the current beam report transmission, and reset all event instance counters associated with the beam report or stop all event instance timers associated with the beam report.

[0086] 2. A second signaling is received, the second signaling is used to indicate that the reference signal resource set configured by the beam report configuration is updated.

[0087] When the reference signal resource set configured by the beam report configuration is updated, the terminal device needs to reacquire the measurement results associated with the beam report, therefore, the terminal device can cancel the triggering of the current beam report transmission, and reset all event instance counters associated with the beam report or stop all event instance timers associated with the beam report.

[0088] Optionally, the second signaling can be a medium access control control element (MAC CE).

[0089] 3. A third signaling is received, the third signaling schedules an uplink channel for transmitting a beam report or the third signaling triggers the transmission of the beam report on the uplink channel.

[0090] The third signaling can be DCI signaling or PDCCH. If the terminal device receives the uplink channel for transmitting the beam report scheduled / triggered by the third signaling, it indicates that the beam report transmission has been triggered, since the resource for the beam report transmission has been allocated, the beam report can be transmitted on the allocated resource, and subsequent retransmission of the beam report can be stopped, then all event instance counters associated with the beam report can be reset or all event instance timers associated with the beam report can be stopped.

[0091] 4. The beam report has been transmitted on the corresponding uplink channel.

[0092] That is, after the beam report has been transmitted, the subsequent retransmission of the beam report can not continue, and then all event instance counters associated with the beam report can be reset or all event instance timers associated with the beam report can be stopped, that is, the beam report is transmitted only once.

[0093] In the above resetting the event instance counter, the value of the event instance counter is set to an initial value or 0.

[0094] In an embodiment, the terminal device is configured with a timer length and / or a maximum transmission count number associated with the transmission of the beam report notification, and is configured with a timer length and / or a maximum transmission count number associated with the transmission of the beam report.

[0095] Optionally, when the beam report is triggered, if the timer associated with the transmission of the beam report is not running, the terminal device can transmit the beam report at a valid transmission opportunity of an uplink channel associated with the beam report. In a case where the count number of the counter associated with the transmission of the beam report exceeds the maximum transmission count number, the terminal device cancels the transmission of the beam report.

[0096] Optionally, when the beam report notification is triggered, the terminal device transmits the beam report notification on an uplink channel associated with the beam report notification. Specifically, the terminal device transmits a positive beam report notification on the uplink channel, or transmits a beam report notification with an indication value of a first value (for example, the first value is 1) on the uplink channel. In response to the transmission of the beam report notification being not triggered or being cancelled, the terminal device does not transmit the uplink channel, or the terminal device transmits a negative beam report notification on the uplink channel, or the terminal device transmits a beam report notification with an indication value of a second value (for example, the second value is 0) on the uplink channel.

[0097] In an embodiment, optionally, in a case where one or more beam reports are associated with the same uplink channel configuration for the transmission of the beam report notification, if a first beam report notification is triggered, a second beam report notification associated with the same uplink channel configuration as the first beam report notification is in a pending state, and the first beam report notification is different from the second beam report notification, a counter associated with the uplink channel configuration for the transmission of the beam report notification is reset or suspended.

[0098] In the above one or more beam reports are associated with the same uplink channel configuration for the transmission of the beam report notification, the one or more beam reports are associated with the same timer or counter for the transmission of the beam report notification. In the above the second beam report notification is in a pending state, the transmission of the second beam report notification is triggered and is not cancelled. Suspending the counter is equivalent to that the terminal device does not add 1 to the counter, or when the terminal device adds 1 to the counter, the terminal device needs to satisfy that the counter is not in a suspended state.

[0099] That is, in case one of the beam reports is triggered, in order to avoid the influence of another beam report associated with the same uplink channel configuration on the transmission of the beam report, the counter associated with the uplink channel configuration for transmitting the beam report can be reset or suspended. Taking two beam report transmissions as an example, assuming that the first beam report is triggered and has been transmitted 3 times (i.e. the count of the counter is 3), at this time the second beam report is also triggered, i.e. the second beam report is currently transmitted 1 time, since the first beam report and the second beam report are associated with the same timer and / or counter, the counter can be reset to the current transmission times of the second beam report, or the count of the counter can be suspended.

[0100] In an embodiment, optionally, when the timer for transmitting the beam report associated with one of the beam reports is not running and the signaling scheduling the uplink channel for transmitting the beam report is received, the timer for transmitting the beam report is started.

[0101] In an embodiment, optionally, in case one or more of the beam reports are associated with the same uplink channel configuration for transmitting the beam reports, if the first beam report is triggered, the second beam report associated with the same uplink channel configuration for transmitting the beam reports is pending, and the first beam report is different from the second beam report, the counter associated with the uplink channel configuration for transmitting the beam reports is reset or suspended.

[0102] In the above, the one or more of the beam reports being associated with the same uplink channel configuration for transmitting the beam reports means that the one or more of the beam reports are associated with the same timer or counter for transmitting the beam reports. The second beam report being pending means that the transmission of the second beam report is triggered and not cancelled. Suspending the counter is equivalent to that the terminal device does not add 1 to the counter, or when the terminal device adds 1 to the counter, the terminal device needs to satisfy that the counter is not in the suspended state.

[0103] That is, in case one of the beam reports is triggered, in order to avoid the influence of another beam report associated with the same uplink channel configuration on the transmission of the beam report, the counter associated with the uplink channel configuration for transmitting the beam report can be reset or suspended. Taking two beam report transmissions as an example, assuming that the first beam report is triggered and has been transmitted 3 times (i.e. the count of the counter is 3), at this time the second beam report is also triggered, i.e. the second beam report is currently transmitted 1 time, since the first beam report and the second beam report are associated with the same timer and / or counter, the counter can be reset to the current transmission times of the second beam report, or the count of the counter can be suspended.

[0104] In one embodiment, optionally, when the beam report association beam report notification is triggered, if the timer associated with the beam report notification transmission is not running and the timer associated with the beam report transmission is not running, the terminal device can perform at least one of the following operations:

[0105] (1) transmit the beam report notification on the valid transmission occasion of the uplink channel associated therewith.

[0106] (2) start the timer associated with the beam report notification transmission.

[0107] (3) increment the counter associated with the beam report notification transmission by 1.

[0108] (4) transmit the beam report on the valid transmission occasion of the uplink channel associated therewith.

[0109] (5) start the timer associated with the beam report transmission.

[0110] (6) increment the counter associated with the beam report transmission by 1.

[0111] Specifically, referring to FIG. 5, timer 1 corresponds to the timer associated with the beam report notification transmission, and timer 2 corresponds to the timer associated with the beam report transmission. When the beam report transmission and the beam report notification transmission are triggered, the terminal device transmits the beam report notification on the valid transmission occasion of the uplink channel associated therewith, and starts timer 1. After a period of time, the terminal device transmits the beam report on the valid transmission occasion of the uplink channel associated therewith, and starts timer 2, stops timer 1, and cancels the triggered beam report transmission and beam report notification transmission. When the next beam report transmission and beam report notification transmission are triggered, when timer 2 is in a stopped or non-running state, the terminal device transmits the beam report notification on the valid transmission occasion of the uplink channel associated therewith, and then the terminal device transmits the beam report on the valid transmission occasion of the uplink channel associated therewith. The operations of the beam report notification transmission and the beam report transmission with respect to timer 1 and timer 2 in this time are consistent with the operations in the previous beam report transmission and beam report notification transmission process, which will not be described herein again. The triggering of the above two beam report transmissions and beam report notification transmissions is associated with the same configuration of the uplink channel for the beam report notification transmission and the same configuration of the uplink channel for the beam report transmission.

[0112] In one embodiment, if the uplink channel configured by the beam report configuration for transmitting the beam report contains Type-1 Configured Grant Physical Uplink Shared Channel (Type-1 CG-PUSCH) or PUSCH of multiple cells scheduled by DCI format 0_3, the terminal device can transmit the beam report according to the following procedures:

[0113] Case 1: In the case where the beam report is configured to be transmitted on Type-1 CG-PUSCH, no other uplink control information and / or no uplink shared channel (UL-SCH) transport block is transmitted on Type-1 CG-PUSCH except for the beam report.

[0114] In one example, the terminal device receives signaling indicating a list of CG-PUSCH configurations for UL-SCH transmission, wherein the list does not contain Type-1 CG-PUSCH configuration associated with the beam report, in which case the UL-SCH transport block is not transmitted on Type-1 CG-PUSCH associated with the beam report.

[0115] In some embodiments, the terminal device receives configuration information indicating that the terminal device determines the transmission of the beam report and the UL-SCH on the Type1 CG-PUSCH based on one of the following ways.

[0116] (1) If the terminal device transmits the beam report on the Type1 CG-PUSCH, the terminal device does not transmit the UL-SCH transport block on the Type1 CG-PUSCH. If the terminal device does not transmit the beam report on the Type1 CG-PUSCH and there is a UL-SCH transport block to be transmitted on the Type1 CG-PUSCH, the terminal device transmits the UL-SCH transport block on the Type1 CG-PUSCH.

[0117] (2) If the terminal device transmits the beam report on the Type1 CG-PUSCH, and there is a UL-SCH transport block to be transmitted on the Type1 CG-PUSCH, the terminal device transmits the UL-SCH transport block and the beam report on the Type1 CG-PUSCH.

[0118] In one example, no parameter related to CG-PUSCH retransmission timer (e.g., cg-RetransmissionTimer) is configured in Type-1 CG-PUSCH configuration associated with beam report. In this example, Configured Grant-Uplink Control Information (CG-UCI) is not transmitted on Type-1 CG-PUSCH associated with beam report.

[0119] In one example, the terminal device reserves 0 resource elements (REs) for Hybrid Automatic Repeat Request Acknowledgment (HARQ-ACK) transmission on Type-1 CG-PUSCH associated with beam report.

[0120] Case 2: In one embodiment, when Type-1 CG-PUSCH overlaps with other uplink channels in time domain, the terminal device can handle it in at least one of the following ways:

[0121] (1) When Type-1 CG-PUSCH overlaps with any PUCCH, drop the Type-1 CG-PUSCH transmission.

[0122] (2) When Type-1 CG-PUSCH overlaps with any PUCCH, drop the PUCCH transmission.

[0123] (3) When Type-1 CG-PUSCH overlaps with PUCCH carrying a specific UCI type, drop the Type-1 CG-PUSCH transmission.

[0124] The specific UCI type includes HARQ-ACK information, SR, or beam report indication. SR is used for scheduling request and link recovery request.

[0125] (4) When Type-1 CG-PUSCH overlaps with PUCCH not carrying a specific UCI type, drop the PUCCH transmission.

[0126] (5) When Type-1 CG-PUSCH overlaps with PUCCH carrying beam report indication, and the beam report is associated with at least one same beam report configuration as the beam report indication, drop the PUCCH carrying the beam report indication.

[0127] (6) When Type-1 CG-PUSCH overlaps with PUCCH carrying beam report indication, and the beam report is associated with different beam report configuration from the beam report indication, the Type-1 CG-PUSCH transmission is dropped.

[0128] In this embodiment, the terminal device drops one uplink channel, which is equivalent to the terminal device transmitting another uplink channel, that is, when Type-1 CG-PUSCH overlaps with other uplink channels in the time domain, the terminal device can also process in at least one of the following ways:

[0129] (1) When Type-1 CG-PUSCH overlaps with any PUCCH, the terminal device transmits the PUCCH.

[0130] (2) When Type-1 CG-PUSCH overlaps with any PUCCH, the terminal device transmits Type-1 CG-PUSCH associated with the beam report.

[0131] (3) When Type-1 CG-PUSCH overlaps with PUCCH carrying a specific UCI type, the terminal device transmits the PUCCH, otherwise the terminal device transmits Type-1 CG-PUSCH associated with the beam report.

[0132] Wherein, the specific UCI type contains HARQ-ACK information, SR, or beam report indication.

[0133] (4) When Type-1 CG-PUSCH overlaps with PUCCH carrying beam report indication, and the beam report is associated with at least one same beam report configuration from the beam report indication, the terminal device transmits Type-1 CG-PUSCH associated with the beam report, otherwise the terminal device transmits PUCCH carrying the beam report indication.

[0134] The above-mentioned way limits the behavior of the terminal device when Type-1 CG-PUSCH associated with the beam report overlaps with other uplink channels in the time domain, ensuring the transmission of key information.

[0135] In one embodiment, optionally, the beam reports are configured in different cells, and the beam reports are associated with the same uplink channel resource for carrying the beam report notification, and the fourth signaling for scheduling PUSCH of multiple cells is received, and the fourth signaling is related to at least one of the multiple beam reports (for example, the report trigger state indicated by the CSI request field in the fourth signaling is related to at least one of the multiple beam reports), and the terminal device performs at least one of the following operations:

[0136] (1) transmits the triggered beam report on the PUSCH of the cell corresponding to the triggered beam report in the multiple beam reports.

[0137] (2) transmits the triggered beam report in the multiple beam reports on the PUSCH associated with the smallest cell index in the multiple PUSCHs scheduled by the fourth signaling.

[0138] (3) does not transmit the beam report of the cell corresponding to the beam report on the PUSCH of the cell corresponding to the beam report that is not triggered.

[0139] (4) does not transmit the PUSCH of the cell corresponding to the beam report that is not triggered in the multiple beam reports.

[0140] In some embodiments, the terminal device receives a DCI format including a CSI request field, and if the CSI request field of the DCI format indicates a code word or code point that is not associated or mapped with an aperiodic CSI trigger state, the terminal device transmits the beam report associated with the DCI format on the PUSCH scheduled by the DCI format. Wherein the code word or code point that is not associated or mapped with an aperiodic CSI trigger state is determined based on at least one of the following ways:

[0141] (1) the number of aperiodic CSI trigger states configured by the terminal device is less than 2 raised to the power of the number of bits of the CSI request field minus 1, and the value of the code word or code point that is not associated or mapped with an aperiodic CSI trigger state is greater than the number of aperiodic CSI trigger states configured by the terminal device.

[0142] (2) the number of aperiodic CSI trigger states mapped to the code word or code point of the CSI request field determined by the terminal device based on the subset of aperiodic CSI trigger states selected by the MAC CE signaling is less than 2 raised to the power of the number of bits of the CSI request field minus 1, and the value of the code word or code point that is not associated or mapped with an aperiodic CSI trigger state is greater than the number of aperiodic CSI trigger states mapped to the code word or code point of the CSI request field determined by the terminal device based on the subset of aperiodic CSI trigger states selected by the MAC CE signaling.

[0143] (3), the code word or code point not associated with or not mapped to the aperiodic CSI trigger state is associated with a specific aperiodic CSI trigger state, and the specific aperiodic CSI trigger state is not associated with a CSI report configuration or a beam report configuration corresponding to a beam report.

[0144] In one example, the number of aperiodic CSI trigger states configured by the terminal device is 62, and the number of bits of the CSI request field is 6, so 62 < 2 6 -1, when the code point value indicated by the CSI request field is 63, it means that the code point is not associated with an aperiodic CSI trigger state.

[0145] In one example, the number of aperiodic CSI trigger states mapped to the code word or code point of the CSI request field determined by the terminal device based on the subset of aperiodic CSI trigger states is 62, and the number of bits of the CSI request field is 6, so 62 < 2 6 -1, when the code point value indicated by the CSI request field is 63, it means that the code point is not associated with an aperiodic CSI trigger state.

[0146] The above embodiments limit the specific process of the terminal device transmitting the beam report on the uplink channel, which can better support the transmission of event-based beam reports.

[0147] FIG. 6 is a structural schematic diagram of a beam report transmission device provided by an embodiment of the present application. The device is applied to a first communication node, as shown in FIG. 6, and the device can include a transmission module 601.

[0148] Specifically, the transmission module 601 is configured to, in response to a beam report being triggered, transmit a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification, and transmit the beam report on the corresponding uplink channel based on a timer and / or a counter associated with the beam report.

[0149] The beam report is transmitted on the uplink channel based on the measurement result of at least one group of reference signals associated with the beam report configuration and the triggering event of the beam report configuration being triggered.

[0150] Optionally, the at least one group of reference signals is configured by the beam report configuration or determined by a TCI state.

[0151] Optionally, the determination manner of the at least one group of reference signals includes at least one of the following:

[0152] In a case that the cell indicator is not included in the beam report configuration, a first set of reference signals determined according to the TCI state is related to a cell where the beam report configuration is located, and a second set of reference signals configured according to the beam report configuration is related to the cell where the beam report configuration is located;

[0153] In a case that the cell indicator is included in the beam report configuration, a first set of reference signals determined according to the TCI state is related to the cell indicator in the beam report configuration, and a second set of reference signals configured according to the beam report configuration is related to the cell indicator in the beam report configuration;

[0154] A first set of reference signals determined according to the TCI state is related to a cell where the beam report configuration is located;

[0155] A second set of reference signals configured according to the beam report configuration is related to a same cell indicator as the first set of reference signals determined according to the TCI state;

[0156] A first set of reference signals determined according to the TCI state is related to a first cell indicator, and a second set of reference signals configured according to the beam report configuration is related to a second cell indicator, wherein the first cell indicator and the second cell indicator are included in the beam report configuration.

[0157] Optionally, a reference signal in the at least one set of reference signals satisfies at least one of the following conditions:

[0158] A time domain position of the reference signal is not later than a CSI reference resource associated with the beam report configuration;

[0159] A time domain position of the reference signal is not earlier than a reception of a first signaling, wherein the first signaling is used to indicate an updated TCI state or an updated TCI state list, and a TCI state updated by the first signaling is associated with the at least one set of reference signals associated with the beam report;

[0160] A time domain position of the reference signal is not later than a latest transmission of an uplink channel carrying the beam report notification.

[0161] Optionally, a downlink slot corresponding to the CSI reference resource is determined by at least one of the following:

[0162] An uplink slot where the beam report is transmitted;

[0163] An uplink slot where a latest transmission of an uplink channel carrying the beam report notification is located;

[0164] a minimum value of a predefined value greater than or equal to one.

[0165] Optionally, the predefined value is determined by at least one of:

[0166] a value indicating UE capability related to a first beam reporting reporting time, the first beam reporting being a beam reporting related to the triggering event;

[0167] a value indicating UE capability related to a second beam reporting reporting time, the second beam reporting being a beam reporting not related to any triggering event;

[0168] wherein X is a positive integer less than or equal to 4, u DL related to a subcarrier spacing of the at least one group of reference signals.

[0169] Optionally, for a same subcarrier spacing, the value indicating UE capability related to a first beam reporting reporting time is less than or equal to the value indicating UE capability related to a second beam reporting reporting time.

[0170] Optionally, in case the beam reporting is indicated to be transmitted on a PDCCH-scheduled uplink channel, the first communication node transmits the beam reporting in the following manner:

[0171] if a first uplink symbol of the PDCCH-scheduled uplink channel is not earlier than a certain symbol, the beam reporting is transmitted on the PDCCH-scheduled uplink channel;

[0172] if a first uplink symbol of the PDCCH-scheduled uplink channel is earlier than a certain symbol, the scheduling of the PDCCH is ignored, or the PDCCH-scheduled uplink channel is not transmitted, or the beam reporting is not transmitted on the PDCCH-scheduled uplink channel.

[0173] Optionally, the certain symbol is determined by at least one of:

[0174] the certain symbol is a next uplink symbol after a processing time of a last symbol of the PDCCH;

[0175] the certain symbol is a next uplink symbol after a processing time of a last symbol of a reference signal resource closest in time domain among the at least one group of reference signals associated with the beam reporting;

[0176] the certain symbol is a next uplink symbol after a last symbol of the PDCCH.

[0177] wherein the processing time is determined based on the value indicating the UE capability related to the first beam report reporting time.

[0178] Optionally, the beam report is triggered further associated with one or more event instance timers and / or event instance counters, each of which is associated with a reference signal related to at least one group of reference signals associated with the beam report.

[0179] Optionally, the transmission of the beam report and / or the transmission of the beam report notification is triggered in case at least one of the one or more event instance counters corresponding to the beam report is not less than a configured maximum counting number.

[0180] Optionally, the transmission module 601 is further configured to cancel the triggering of the transmission of the beam report and / or the triggering of the transmission of the beam report notification in case all of the one or more event instance timers corresponding to the beam report expire or stop.

[0181] Optionally, the triggering of the transmission of the beam report is cancelled and the event instance counter is reset or the event instance timer is stopped in case at least one of the following conditions is met:

[0182] For a specific triggering event, when a change of TCI state with the M-th best quality among activated TCI states occurs, the M is a configurable positive integer;

[0183] a second signaling is received, the second signaling indicating to update a set of reference signal resources configured by the beam report configuration;

[0184] a third signaling is received, the third signaling scheduling an uplink channel for transmission of the beam report or triggering the transmission of the beam report on the uplink channel;

[0185] the beam report has been transmitted on the corresponding uplink channel.

[0186] Optionally, the transmission module 601 is further configured to, in case one or more beam reports are associated with a same uplink channel configuration for beam report notification transmission, if a first beam report notification is triggered, a second beam report notification associated with the same uplink channel configuration as the first beam report notification is in pending state, and the first beam report notification is different from the second beam report notification, reset or suspend a counter associated with the uplink channel configuration for beam report notification transmission.

[0187] Optionally, the one or more beam reports associated with the same uplink channel configuration for beam report notification transmission means that the one or more beam reports are associated with the same timer or counter for beam report notification transmission.

[0188] Optionally, the transmission module 601 is further configured to, in the case that the one or more beam reports are associated with the same uplink channel configuration for beam report transmission, if a first beam report is triggered, a second beam report associated with the same uplink channel configuration as the first beam report is in pending state, and the first beam report is different from the second beam report, reset or suspend a counter associated with the uplink channel configuration for beam report transmission.

[0189] Optionally, the one or more beam reports associated with the same uplink channel configuration for beam report notification transmission means that the one or more beam reports are associated with the same timer or counter for beam report notification transmission.

[0190] Optionally, in response to the beam report notification being triggered, if a timer associated with the beam report notification transmission is not running and a timer associated with the beam report transmission is not running, the transmission module 601 is further configured to perform at least one of the following operations:

[0191] transmit the beam report notification on a valid transmission occasion of an uplink channel associated with the beam report notification;

[0192] start a timer associated with the beam report notification transmission;

[0193] increment a counter associated with the beam report notification transmission by 1;

[0194] transmit the beam report on a valid transmission occasion of an uplink channel associated with the beam report;

[0195] start a timer associated with the beam report transmission;

[0196] increment a counter associated with the beam report transmission by 1.

[0197] Optionally, in the case that the beam report is configured to be transmitted on a Type-1 CG-PUSCH, no other uplink control information and / or no UL-SCH transport block is transmitted on the Type-1 CG-PUSCH except the beam report.

[0198] Optionally, in the case that the Type-1 CG-PUSCH overlaps in time domain with other uplink channels, the transmission module 601 is further configured to perform at least one of the following operations:

[0199] drop the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with any PUCCH;

[0200] drop the PUCCH transmission when the Type-1 CG-PUSCH overlaps with any PUCCH;

[0201] drop the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with a PUCCH carrying a specific UCI type;

[0202] drop the PUCCH transmission when the Type-1 CG-PUSCH overlaps with a PUCCH not carrying a specific UCI type;

[0203] drop the PUCCH carrying the beam report notification when the Type-1 CG-PUSCH overlaps with the PUCCH carrying the beam report notification, and the beam report is associated with at least one same beam report configuration as the beam report notification;

[0204] drop the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with the PUCCH carrying the beam report notification, and the beam report is associated with a different beam report configuration than the beam report notification.

[0205] Optionally, the specific UCI type comprises HARQ-ACK information, SR, or beam report notification.

[0206] Optionally, when a plurality of beam reports each associated with a beam report configuration are configured in different cells, and the plurality of beam reports are associated with a same uplink channel resource for carrying a beam report notification, and a fourth signaling for scheduling PUSCHs of the plurality of cells is received, and the fourth signaling is related to at least one of the plurality of beam reports, the transmission module 601 is further configured to perform at least one of the following operations:

[0207] transmit a beam report triggered for transmission among the plurality of beam reports on a PUSCH of a cell corresponding to the beam report;

[0208] transmit a beam report triggered for transmission among the plurality of beam reports on a PUSCH associated with a smallest cell index among the plurality of PUSCHs scheduled by the fourth signaling;

[0209] not transmit a beam report corresponding to a cell on a PUSCH of the cell without a beam report triggered for transmission;

[0210] transmitting no PUSCH for a cell corresponding to a beam report of the plurality of beam reports that is not triggered for transmission.

[0211] Optionally, the transmission module 601 is further configured to, in a case where a DCI format containing a CSI request field is received, and a code word or code point indicated by the CSI request field is not associated with or does not map to an aperiodic CSI trigger state, transmit a beam report associated with the DCI format on a PUSCH scheduled by the DCI format.

[0212] In one embodiment, the internal structure of the communication node can be as shown in FIG. 7. The communication node includes a processor, a memory, a network interface and a database connected through a system bus. The processor of the communication node is configured to provide computing and control capabilities. The memory of the communication node includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The database of the communication node is configured to store data generated in the beam report transmission process. The network interface of the communication node is configured to communicate with an external terminal through a network connection. The computer program is executed by the processor to implement the beam report transmission method provided in any of the above embodiments.

[0213] Those skilled in the art can understand that the structure shown in FIG. 7 is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the communication node to which the scheme of the present application is applied. Specifically, the communication node can include more or fewer components than those shown in the figure, or combine certain components, or have a different component arrangement.

[0214] The embodiments of the present application also provide a computer readable storage medium, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the following steps:

[0215] in response to a beam report being triggered, transmitting a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification transmission, and transmitting the beam report on the corresponding uplink channel based on a timer and / or a counter associated with the beam report transmission;

[0216] wherein the beam report is triggered based on measurement results of at least one group of reference signals associated with a beam report configuration and a triggering event associated with the beam report configuration, and the beam report transmitted on the uplink channel is determined by the measurement results of the at least one group of reference signals.

[0217] The embodiment of the present application further provides a computer program product, and the computer program product has a computer program stored thereon, and the computer program is executed by a processor to implement the following steps:

[0218] In response to the beam report being triggered, transmitting the beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification transmission, and transmitting the beam report on the corresponding uplink channel based on a timer and / or a counter associated with the beam report transmission;

[0219] The beam report is transmitted on the uplink channel based on measurement results of at least one group of reference signals associated with a beam report configuration and a triggering event associated with the beam report configuration, and the beam report transmitted on the uplink channel is determined by the measurement results of the at least one group of reference signals.

[0220] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer readable media. The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium may, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination thereof. The computer readable storage medium includes (but is not limited to) an electrical connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present application, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or component.

[0221] The computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, and the data signal carries computer readable program code. Such a propagated data signal can take on many forms, including but not limited to electro-magnetic, optical or any suitable combination thereof. The computer readable signal medium can also be any computer readable medium that is not a computer readable storage medium and that can transmit, propagate or transport program for use by or in connection with an instruction execution system, apparatus or component.

[0222] The program code embodied on the computer readable media can be transmitted using any appropriate medium, including but not limited to wireless, wire line, optical fiber cable, Radio Frequency (RF) etc., or any suitable combination of the foregoing.

[0223] Computer program code for carrying out operations of the present disclosure can be written in any combination of one or more programming languages, including object oriented programming languages such as Java, Smalltalk, C++, Ruby, Go, conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0224] Those skilled in the art will appreciate that the term user terminal encompasses any appropriate type of wireless user device, such as a mobile phone, portable data processing apparatus, portable web browser or in-vehicle mobile station.

[0225] In general, the various embodiments of the application can be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in

[0226] Embodiments of the application can be implemented by computer program instructions embodied on a tangible, computer readable medium executed by a data processor of a mobile device, for example, in processor circuitry, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state-setting data, or any combination of source code or object code in any combination of one or more programming languages.

[0227] The block diagrams of any logical flow of the present application in the drawings can represent program steps or can represent interconnected logic circuits, modules, and functions, or can represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored on a memory. The memory can be of any type suitable to the local technical environment and can be realized using any suitable data storage technology, such as, but not limited to, read only memory (ROM), random access memory (RAM), optical storage devices, and systems, such as digital video disc (DVD) or compact disc (CD), and the like. The computer readable medium can include non-transitory storage media. The data processor can be of any type suitable to the local technical environment, and can include, but is not limited to, a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), and a processor based on multi-core processor architecture.

Claims

1. A method for beam report transmission, applied to a first communication node, comprising: transmitting, in response to a beam report being triggered, a beam report notification on a corresponding uplink channel based on a timer and / or a counter associated with the beam report notification transmission, and transmitting the beam report on the corresponding uplink channel based on the timer and / or the counter associated with the beam report transmission; wherein the beam report is triggered based on measurement results of at least one group of reference signals associated with a beam report configuration and a triggering event associated with the beam report configuration, and the beam report transmitted on the uplink channel is determined by the measurement results of the at least one group of reference signals.

2. The method of claim 1, wherein, The at least one group of reference signals is configured by the beam report configuration or determined by a transmission configuration indication (TCI) state.

3. The method of claim 2, wherein, The determination of the at least one group of reference signals comprises at least one of the following: In a case where a cell indicator is not included in the beam report configuration, a first group of reference signals determined by the TCI state is associated with a cell where the beam report configuration is located, and a second group of reference signals configured by the beam report configuration is associated with the cell where the beam report configuration is located; In a case where a cell indicator is included in the beam report configuration, a first group of reference signals determined by the TCI state is associated with the cell indicator in the beam report configuration, and a second group of reference signals configured by the beam report configuration is associated with the cell indicator in the beam report configuration; A first group of reference signals determined by the TCI state is associated with a cell where the beam report configuration is located; A second group of reference signals configured by the beam report configuration is associated with a same cell indicator as the first group of reference signals determined by the TCI state; A first group of reference signals determined by the TCI state is associated with a first cell indicator, and a second group of reference signals configured by the beam report configuration is associated with a second cell indicator, wherein the first cell indicator and the second cell indicator are included in the beam report configuration.

4. The method of claim 2, wherein, A reference signal in the at least one group of reference signals satisfies at least one of the following conditions: A time domain position of the reference signal is not later than a channel state information (CSI) reference resource associated with the beam report configuration; A time domain position of the reference signal is not earlier than a reception of a first signaling, wherein the first signaling is used to indicate an updated TCI state or an updated TCI state list, and the TCI state updated by the first signaling is associated with the at least one group of reference signals associated with the beam report; A time domain position of the reference signal is not later than a transmission of a latest uplink channel carrying the beam report notification.

5. The method of claim 4, wherein, A downlink slot corresponding to the CSI reference resource is determined by at least one of the following: An uplink slot where the beam report transmission is located; An uplink slot where a transmission of a latest uplink channel carrying the beam report notification is located; A minimum value of a downlink slot corresponding to one valid downlink slot is greater than or equal to a predefined value.

6. The method of claim 5, wherein, The predefined value is determined by at least one of the following: a value indicating a UE capability related to a first beam report reporting time, the first beam report being a beam report related to the triggering event; a value indicating a UE capability related to a second beam report reporting time, the second beam report being a beam report not related to any triggering event; wherein X is a positive integer less than or equal to 4, u DL related to a subcarrier spacing of the at least one group of reference signals.

7. The method of claim 5, wherein, for a same subcarrier spacing, the value indicating the UE capability related to the first beam report reporting time is less than or equal to the value indicating the UE capability related to the second beam report reporting time.

8. The method of claim 1, wherein, In a case that the beam report is indicated to be transmitted on a physical downlink control channel (PDCCH) scheduled uplink channel, the first communication node transmits the beam report in the following manner: in response to a first uplink symbol of the PDCCH scheduled uplink channel not being earlier than a specific symbol, transmitting the beam report on the PDCCH scheduled uplink channel; in response to a first uplink symbol of the PDCCH scheduled uplink channel being earlier than a specific symbol, ignoring the scheduling of the PDCCH, or not transmitting the PDCCH scheduled uplink channel, or not transmitting the beam report on the PDCCH scheduled uplink channel.

9. The method of claim 8, wherein, The specific symbol is determined by at least one of the following: the specific symbol is a next uplink symbol after a processing time of a last symbol of the PDCCH; the specific symbol is a next uplink symbol after a processing time of a last symbol of a reference signal resource that is closest in time domain among the at least one group of reference signals associated with the beam report; the specific symbol is a next uplink symbol after a last symbol of the PDCCH; wherein the processing time is determined based on the value indicating the UE capability related to the first beam report reporting time.

10. The method of claim 1, wherein, The beam report is further associated with one or more event instance timers and / or event instance counters, each of which is associated with a reference signal related to the at least one group of reference signals associated with the beam report.

11. The method of claim 10, wherein, In a case that at least one of the one or more event instance counters corresponding to the beam report is not less than a configured maximum count number, the transmission of the beam report and / or the transmission of the beam report notification is triggered.

12. The method of claim 10, further comprising: In a case that all of the one or more event instance timers corresponding to the beam report are expired or stopped, canceling the triggering of the beam report transmission and / or the triggering of the beam report notification transmission.

13. The method of claim 10, wherein, In a case that at least one of the following conditions is met, canceling the triggering of the beam report transmission and resetting the event instance counter or stopping the event instance timer: for a specific triggering event, when a change of a TCI state with an M-th best quality among activated TCI states occurs, the M being a configurable positive integer; receiving second signaling indicating to update a set of reference signal resources configured by the beam report configuration; receiving third signaling scheduling an uplink channel for transmission of the beam report or triggering transmission of the beam report on an uplink channel; the beam report has been transmitted on a corresponding uplink channel.

14. The method of claim 1, further comprising: in case one or more beam reports are associated with a same uplink channel configuration for beam report notification transmission, in response to a first beam report notification being triggered, a second beam report notification associated with the same uplink channel configuration is in pending state, and the first beam report notification is different from the second beam report notification, resetting or suspending a counter associated with the uplink channel configuration for beam report notification transmission.

15. The method of claim 14, wherein, the one or more beam reports being associated with a same uplink channel configuration for beam report notification transmission means that the one or more beam reports are associated with a same timer or counter for beam report notification transmission.

16. The method of claim 1, further comprising: in case one or more beam reports are associated with a same uplink channel configuration for beam report transmission, in response to a first beam report being triggered, a second beam report associated with the same uplink channel configuration is in pending state, and the first beam report is different from the second beam report, resetting or suspending a counter associated with the uplink channel configuration for beam report transmission.

17. The method of claim 16, wherein, the one or more beam reports being associated with a same uplink channel configuration for beam report transmission means that the one or more beam reports are associated with a same timer or counter for beam report transmission.

18. The method of claim 1, wherein, in response to a beam report notification being triggered, in response to a timer associated with transmission of the beam report notification not being in running and a timer associated with transmission of the beam report not being in running, the first communication node performs at least one of the following: transmitting the beam report notification on a valid transmission occasion of an uplink channel associated therewith; starting a timer associated with transmission of the beam report notification; incrementing a counter associated with transmission of the beam report notification by 1; transmitting the beam report on a valid transmission occasion of an uplink channel associated therewith; starting a timer associated with transmission of the beam report; incrementing a counter associated with transmission of the beam report by 1.

19. The method of claim 1, wherein, in case the beam report is configured to be transmitted on a Type-1 Configured Grant, Type-1 CG, Physical Uplink Shared Channel, PUSCH, no other uplink control information and / or no uplink shared channel, UL-SCH, transport block is transmitted on the Type-1 CG-PUSCH other than the beam report.

20. The method of claim 19, wherein, in case the Type-1 CG-PUSCH overlaps in time domain with other uplink channels, the first communication node performs at least one of the following: discard the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with any physical uplink control channel (PUCCH); discard the PUCCH transmission when the Type-1 CG-PUSCH overlaps with any PUCCH; discard the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with a PUCCH carrying a specific uplink control information (UCI) type; discard the PUCCH transmission when the Type-1 CG-PUSCH overlaps with a PUCCH not carrying the specific UCI type; discard the PUCCH carrying the beam report notification when the Type-1 CG-PUSCH overlaps with the PUCCH carrying the beam report notification, and the beam report is associated with at least one same beam report configuration as the beam report notification; discard the Type-1 CG-PUSCH transmission when the Type-1 CG-PUSCH overlaps with the PUCCH carrying the beam report notification, and the beam report is associated with a different beam report configuration than the beam report notification.

21. The method of claim 20, wherein, The specific UCI type includes hybrid automatic repeat request-acknowledgement (HARQ-ACK) information, a scheduling request (SR), or a beam report notification.

22. The method of claim 1, wherein, In a case that beam report configurations associated with a plurality of beam reports are configured in different cells, and the plurality of beam reports are associated with a same uplink channel resource for carrying a beam report notification, and a fourth signaling for scheduling PUSCHs of the plurality of cells is received, and the fourth signaling is related to at least one of the plurality of beam reports, the first communication node performs at least one of the following operations: transmit a beam report that is triggered for transmission among the plurality of beam reports on a PUSCH of a cell corresponding to the beam report; transmit the beam report that is triggered for transmission among the plurality of beam reports on a PUSCH associated with a smallest cell index among the plurality of PUSCHs scheduled by the fourth signaling; not transmit a beam report corresponding to a cell on a PUSCH of the cell, the beam report not being triggered for transmission; not transmit a PUSCH of a cell corresponding to a beam report that is not triggered for transmission among the plurality of beam reports.

23. The method of claim 1, further comprising: transmit a beam report associated with a downlink control information (DCI) format on a PUSCH scheduled by the DCI format in a case that the DCI format is received containing a CSI request field, and a code word or a code point indicated by the CSI request field is not associated with or does not map to an aperiodic CSI trigger state.

24. A communication node, comprising: a memory storing a computer program, and a processor, wherein the processor executes the computer program to implement the method in any one of claims 1-23.

25. A computer readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the method in any one of claims 1-23.

Images