Method and device used in wireless communication

Abstract

The invention discloses a method and a device used in wireless communication. A first node receives a first signaling, the first signaling indicating transmission of an on-demand SSB in a first cell; performing beam-related measurements for the first cell in a first time window; wherein the first cell is an SCell, and the measurement related to the beam comprises at least one of beam fault detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal adopted by the beam-related measurement comprises the on-demand SSB. According to the invention, how to perform beam fault detection and recovery in the on-demand SSB cell can be indicated, and network energy saving is facilitated.

Description

Technical Field

[0001] The present application relates to methods and apparatuses in a wireless communication system, and particularly to methods and apparatuses for beam failure detection and recovery in wireless communication. Background Art

[0002] The application scenarios of future wireless communication systems are becoming more and more diversified, and different application scenarios pose different performance requirements on the system. In order to meet the different performance requirements of various application scenarios, it was decided at the 72nd plenary session of 3GPP (3rd Generation Partner Project) RAN (Radio Access Network) to conduct research on NR (New Radio) technology (or Fifth Generation, 5G), and the WI (Work Item) of NR was adopted at the 75th plenary session of 3GPP RAN, and the standardization work of NR was started. The design of the 5G system in Release 15 has considered some major application scenarios. Subsequent versions will not only consider the enhancement of the 5G system architecture, but also further enhance it for vertical applications to provide more flexible service matching, more robust transmission, and more consistent user experience.

[0003] Network Energy Saving (NES) is crucial for aspects such as environmental sustainability, reducing environmental impact, and saving operating costs. Due to requirements such as higher data rates, denser networks, more antennas, larger bandwidths, and more frequency bands, the environmental impact of wireless communication systems needs to be controlled, and new solutions for improving network energy saving need to be developed. Summary of the Invention

[0004] The inventors found through research that in versions prior to R19, the transmission of SSB (Synchronization Signal / Physical Broadcast Channel Block) is always-on, and it is beneficial for energy saving for the network to transmit SSB on demand in a cell. If the UE (User Equipment) supports on-demand SSB transmission, then the technical details of using on-demand SSB and other reference signals (RS) that have a QCL relationship with on-demand SSB for beam failure detection and recovery and other aspects need to be further studied.

[0005] In view of the above problems, the present application discloses a solution. Without conflict, the embodiments and features in the first node of the present application can be applied to the second node, and vice versa. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily. Further, although the original intention of the present application is for Beam Failure Detection (BFD) and Candidate Beam Detection (CBD), the present application is also applicable to other measurement scenarios and achieves similar technical effects. Further, although the original intention of the present application is for SCell (Secondary Cell), the present application is also applicable to SpCell (Special Cell) and achieves similar technical effects. In addition, adopting a unified solution for different scenarios helps to reduce hardware complexity and cost. In particular, the explanations of the terms, nouns, functions, and variables in the present application (if not otherwise specified) can refer to the definitions in the 3GPP specification protocols TS36 series, TS38 series, and TS37 series.

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

[0007] Receiving a first signaling, where the first signaling indicates the transmission of on-demand SSB in a first cell;

[0008] Performing beam-related measurements on the first cell in a first time window;

[0009] Wherein, the first cell is an SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0010] As an embodiment, the first cell is an NES cell.

[0011] As an embodiment, the first node is in the connected mode.

[0012] As an embodiment, in response to receiving the first signaling, at least the former of the beam failure detection and the candidate beam detection is performed in the first time window; wherein the reference signal for the beam failure detection includes the on-demand SSB.

[0013] As an embodiment, the first signaling indicates when to perform the beam-related measurements.

[0014] As an embodiment, the first signaling simultaneously indicates the transmission of the on-demand SSB in the first cell and the performance of beam-related measurements within the first time window, reducing signaling overhead.

[0015] As an embodiment, the benefits of the above method include: facilitating the avoidance of unnecessary measurements.

[0016] As an embodiment, the benefits of the above method include: facilitating the reduction of data transmission interruptions caused by measurements.

[0017] As an embodiment, the benefits of the above method include: facilitating network energy saving.

[0018] As an embodiment, the benefits of the above method include: having forward compatibility.

[0019] As an embodiment, the first node is a terminal.

[0020] According to one aspect of the present application, the above method is characterized in that the reference signal used for the beam-related measurements includes a first reference signal, and the first reference signal is associated with the on-demand SSB.

[0021] As an embodiment, that a reference signal is associated with the on-demand SSB means that the reference signal and the on-demand SSB are QCL (Quasi Co-location).

[0022] According to one aspect of the present application, the above method is characterized in that the transmission of the on-demand SSB includes respectively transmitting a plurality of on-demand SSB bursts within a plurality of on-demand transmission time windows;

[0023] wherein, the durations of the plurality of on-demand transmission time windows are the same; both the plurality of on-demand transmission time windows and the plurality of on-demand SSB bursts are periodic; the first signaling indicates the periods of the on-demand transmission time windows and the on-demand SSB bursts.

[0024] As an embodiment, only the first signaling is used to indicate the plurality of on-demand SSB bursts respectively transmitted within a plurality of on-demand transmission time windows, saving signaling overhead.

[0025] According to one aspect of the present application, the above method is characterized in that the start time of the first time window is the start time of the transmission of the on-demand SSB, and the end time of the first time window is the end time of the transmission of the on-demand SSB.

[0026] According to one aspect of the present application, the above method is characterized by including:

[0027] Trigger beam failure recovery (BFR) at a first moment in the first cell.

[0028] According to one aspect of the present application, the above method is characterized in that it includes:

[0029] Send a second signaling, where the second signaling indicates the beam failure recovery;

[0030] Wherein, whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; generate the second signaling at the second moment, or trigger a scheduling request for the second signaling.

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

[0032] As an embodiment, in response to receiving the first signaling, perform the candidate beam detection in the first time window after triggering the beam failure recovery; wherein, the reference signal for the candidate beam detection includes the on-demand SSB.

[0033] According to one aspect of the present application, the above method is characterized in that when the second time window is less than a second evaluation period, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation period, whether the second signaling indicates the on-demand SSB further depends on the measurement result of the on-demand SSB in the second time window.

[0034] As an embodiment, the advantage of the above method is that it can reduce the influence of channel instantaneous changes during candidate beam detection.

[0035] As an embodiment, the above method gives a minimum evaluation time requirement for the candidate beam detection of the first cell.

[0036] According to one aspect of the present application, the above method is characterized in that the triggering of the beam failure recovery depends on the measurement result of the reference signal used for the beam-related measurement before the first moment in the first time window;

[0037] Wherein, the first moment is within the first time window; the time interval from the start time of the first time window to the first moment is greater than or equal to a first evaluation requirement.

[0038] As an embodiment, the advantage of the above method is that it can reduce the impact of instantaneous channel changes during beam failure detection.

[0039] As an embodiment, the above method gives the minimum evaluation time requirement for the beam failure detection of the first cell.

[0040] According to one aspect of the present application, the above method is characterized in that an evaluation requirement depends on the period of the on-demand transmission time window or the period of the on-demand SSB burst;

[0041] wherein, the evaluation requirement is the second evaluation requirement, or the first evaluation requirement.

[0042] As an embodiment, the evaluation requirement is determined based on at least one of the period of the on-demand transmission time window and the period of the on-demand SSB burst.

[0043] The present application discloses a terminal, which is characterized by including:

[0044] The terminal includes: one or more processors and a memory;

[0045] The memory is coupled to the one or more processors, and the memory is used to store computer program code. The computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the terminal to execute the above method in the first node.

[0046] As an embodiment, the terminal is a UE (User Equipment).

[0047] The present application discloses a method in a second node for wireless communication, which is characterized by including:

[0048] Sending a first signaling, where the first signaling indicates the transmission of on-demand SSB in a first cell;

[0049] wherein, beam-related measurements for the first cell are performed in a first time window; the first cell is a SCell, the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; and the reference signal used for the beam-related measurements includes the on-demand SSB.

[0050] As an embodiment, the second node is a base station.

[0051] According to one aspect of the present application, the method is characterized in that the reference signal used in the beam-related measurement includes a first reference signal, and the first reference signal is associated with the on-demand SSB.

[0052] According to one aspect of the present application, the method is characterized in that the transmission of the on-demand SSB includes transmitting a plurality of on-demand SSB bursts respectively within a plurality of on-demand transmission time windows;

[0053] Wherein, the durations of the plurality of on-demand transmission time windows are the same; the plurality of on-demand transmission time windows and the plurality of on-demand SSB bursts are both periodic; the first signaling indicates the period of the on-demand transmission time window and the period of the on-demand SSB burst.

[0054] According to one aspect of the present application, the method is characterized in that the start time of the first time window is the start time of the transmission of the on-demand SSB, and the end time of the first time window is the end time of the transmission of the on-demand SSB.

[0055] According to one aspect of the present application, the method is characterized by including:

[0056] Beam failure recovery is triggered at a first moment in the first cell.

[0057] According to one aspect of the present application, the method is characterized by including:

[0058] Receiving a second signaling, the second signaling indicating the beam failure recovery;

[0059] Wherein, whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; at the second moment, the second signaling is indicated to be generated, or a scheduling request for the second signaling is triggered.

[0060] According to one aspect of the present application, when the second time window is less than a second evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on the measurement result of the on-demand SSB in the second time window.

[0061] According to one aspect of the present application, the triggering of the beam failure recovery depends on the measurement result of the reference signal used in the beam-related measurement before the first moment within the first time window;

[0062] Among them, the first moment is within the first time window; the time interval from the start time of the first time window to the first moment is greater than or equal to the first evaluation requirement.

[0063] According to one aspect of the present application, the above method is characterized in that an evaluation requirement depends on the period of the on-demand transmission time window or the period of the on-demand SSB burst;

[0064] Among them, the evaluation requirement is the second evaluation requirement, or the first evaluation requirement.

[0065] The present application discloses a base station, which is characterized by including:

[0066] The base station includes: one or more processors and a memory;

[0067] The memory is coupled to the one or more processors, and the memory is used to store computer program code. The computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the base station to execute the above method in the second node. Description of the Drawings

[0068] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present application will become more obvious:

[0069] Figure 1 Illustrates a transmission flow chart in the first node according to an embodiment of the present application;

[0070] Figure 2 Illustrates a schematic diagram of a network architecture according to an embodiment of the present application;

[0071] Figure 3 Illustrates a schematic diagram of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0072] Figure 4 Illustrates a schematic diagram of a hardware module of a communication device according to an embodiment of the present application;

[0073] Figure 5 Illustrates a radio signal transmission flow chart between a first node and a second node according to an embodiment of the present application;

[0074] Figure 6 Illustrates a schematic diagram of the transmission of on-demand SSB according to an embodiment of the present application;

[0075] Figure 7Schematic diagram of a first signaling and a first time window according to an embodiment of the present application;

[0076] Figure 8 Another wireless signal transmission flowchart between a first node and a second node according to an embodiment of the present application is illustrated;

[0077] Figure 9 Schematic diagram of the relationship between a first moment, a first time window and a second time window according to an embodiment of the present application is illustrated;

[0078] Figure 10 Schematic diagram of the relationship between a first moment and a first time window according to an embodiment of the present application is illustrated;

[0079] Figure 11 Structural block diagram of a processing device in a first node according to an embodiment of the present application is illustrated;

[0080] Figure 12 Structural block diagram of a processing device in a second node according to an embodiment of the present application is illustrated. Detailed implementation manners

[0081] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined arbitrarily with each other.

[0082] Example 1

[0083] Embodiment 1 illustrates a transmission flowchart in a first node according to an embodiment of the present application, as shown in the accompanying Figure 1 figure.

[0084] In Embodiment 1, the first node 100 receives a first signaling in step 101, and the first signaling indicates the transmission of on-demand SSB in a first cell; in step 102, beam-related measurements for the first cell are performed in a first time window; wherein, the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; and the reference signal used for the beam-related measurements includes the on-demand SSB.

[0085] As an embodiment, the first signaling is received on the serving cell of the first node.

[0086] As an example, receive the first signaling on the first cell; wherein, the first cell is activated when receiving the first signaling, and the first cell is the serving cell of the first node.

[0087] As an example, the first cell is the SCell of the first node.

[0088] As an example, the first cell is an on-demand SSB SCell.

[0089] As an example, receive the first signaling in the second cell; wherein, the second cell is the serving cell of the first node.

[0090] As an example, the first signaling received on the second cell indicates the transmission of the on-demand SSB in the first cell.

[0091] As a sub-example of the above example, the first cell is activated when receiving the first signaling.

[0092] As a sub-example of the above example, the first cell is deactivated when receiving the first signaling.

[0093] As an example, the second cell is the SpCell (Special Cell) of the first node.

[0094] As an example, the second cell is the PCell (Primary Cell) of the first node.

[0095] As an example, the second cell is the PSCell (Primary SecondaryCell) of the first node.

[0096] As an example, the first cell is configured by an SCellConfig field, and the SCellConfig field indicates the secondary cell index (SCellIndex) of the first cell.

[0097] As an example, the on-demand SSB is a cell-defining SSB (CD-SSB).

[0098] As an example, the on-demand SSB is a non-cell-defining SSB (NCD-SSB).

[0099] As an example, the on-demand SSB is located on the synchronization raster.

[0100] As an example, the on-demand SSB is not located on the synchronization raster.

[0101] As an example, the first signaling is RRC (Radio Resource Control) layer signaling.

[0102] As an example, the first signaling is an RRC message.

[0103] As an example, the first signaling includes some or all fields in the IE (Information Element) RRCReconfiguration (RRC reconfiguration).

[0104] As an example, the first signaling includes some or all fields in the IE RRCResume (RRC resume).

[0105] As an example, the first signaling includes some or all fields in the IE CellGroupConfig (cell group configuration).

[0106] As an example, the first signaling includes some or all fields in the IE ServingCellConfigCommon (serving cell common configuration).

[0107] As an example, the first signaling includes some or all fields in the IE ServingCellConfigCommonSIB (serving cell common configuration system information block).

[0108] As an example, the first signaling is signaling of a protocol layer below the RRC layer.

[0109] As an example, the first signaling is a MAC CE (Control Element).

[0110] As an example, the first signaling is a new MAC CE introduced in R19 (Release 19) or later versions.

[0111] As an example, the first signaling is physical layer signaling.

[0112] As an example, the first signaling is DCI (Downlink Control Information).

[0113] As an example, the first signaling is UE-specific.

[0114] As an example, the first signaling is group-common.

[0115] As an example, the first signaling is cell-common.

[0116] As an example, the first signaling is transmitted through a DCCH (Dedicated Control Channel).

[0117] As an example, the first signaling is transmitted through a BCCH (Broadcast Control Channel).

[0118] As an example, the first signaling is carried on an SRB (Signalling Radio Bearer).

[0119] As an example, the first signaling is transmitted through a DL-SCH (Downlink Shared Channel).

[0120] As an example, the first signaling is transmitted through a BCH (Broadcast Channel).

[0121] As an example, the first signaling is transmitted on a PDSCH (Physical Downlink Shared Channel).

[0122] As an example, the first signaling is transmitted on a PDCCH (Physical Control Shared Channel).

[0123] As an example, the first signaling is transmitted on a PBCH (Physical broadcast channel).

[0124] As an example, the first node is configured with at least one on-demand SSB configuration in the first cell.

[0125] As an embodiment, a first RRC signaling is received, and the first RRC signaling configures at least one on-demand SSB configuration in the first cell.

[0126] As an embodiment, the first signaling includes a first on-demand SSB configuration, and the first on-demand SSB configuration belongs to the at least one on-demand SSB configuration; wherein, the first signaling is a signaling of a protocol layer below the RRC layer.

[0127] As an embodiment, an on-demand SSB configuration is associated with an on-demand SSB configuration index.

[0128] As an embodiment, the first signaling includes an on-demand SSB configuration index.

[0129] As an embodiment, the first signaling includes a first on-demand SSB configuration index, and the first on-demand SSB configuration index is associated with the first on-demand SSB configuration; wherein, the first signaling is a signaling of a protocol layer below the RRC layer.

[0130] As an embodiment, the first signaling includes a first identifier.

[0131] As a sub-embodiment of the above embodiment, the first identifier is the physical cell identity (PCI) of the first cell.

[0132] As a sub-embodiment of the above sub-embodiment, the first identifier is the additional physical cell identity of the first cell.

[0133] As a sub-embodiment of the above embodiment, the first identifier is the secondary cell index of the first cell.

[0134] As an embodiment, the first signaling indicates that the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the frequency of the on-demand SSB.

[0135] As a sub-embodiment of the above embodiment, the first signaling includes an ssb-frequency (SSB frequency) field, and the ssb-frequency field indicates the frequency of the on-demand SSB.

[0136] As a sub-embodiment of the above embodiment, the first signaling includes an absoluteFrequencySSB (absolute frequency SSB) field, and the absoluteFrequencySSB indicates the frequency of the on-demand SSB.

[0137] As an example, the indication by the first signaling of the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the subcarrier spacing (SCS) of the on-demand SSB.

[0138] As a sub-example of the above example, the first signaling includes an ssbSubcarrierSpacing (SSB subcarrier spacing) field, and the ssbSubcarrierSpacing indicates the subcarrier spacing of the on-demand SSB.

[0139] As a sub-example of the above example, the first signaling includes a subcarrierSpacing (subcarrier spacing) field, and the subcarrierSpacing indicates the subcarrier spacing of the on-demand SSB.

[0140] As an example, the indication by the first signaling of the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the transmission power of the on-demand SSB.

[0141] As a sub-example of the above example, the first signaling includes an ss-PBCH-BlockPower (synchronization signal physical broadcast channel block power) field, and the ss-PBCH-BlockPower field indicates the transmission power of the on-demand SSB.

[0142] As an example, the first node is configured with multiple candidate values of the transmission power of the on-demand SSB, and the first signaling indicates one of the multiple candidate values of the transmission power of the on-demand SSB.

[0143] As an example, the indication by the first signaling of the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the SSB positions within an on-demand SSB burst.

[0144] As a sub-example of the above example, the first signaling includes an ssb-PositionsInBurst (SSB positions in burst) field, and the ssb-PositionsInBurst field indicates the SSB positions within an on-demand SSB burst.

[0145] As an example, the SSB positions include a bitmap, and the bit value corresponding to the on-demand SSB in the bitmap is 1.

[0146] As an embodiment, the first node is configured with a plurality of candidate values of the on-demand SSB position, and the first signaling indicates one of the plurality of candidate values of the on-demand SSB position.

[0147] As an embodiment, the first signaling indicating the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the transmission period (Periodicity) of the on-demand SSB.

[0148] As a sub-embodiment of the above embodiment, the first signaling includes an ssb-periodicity (SSB period) field, and the ssb-periodicity field indicates the transmission period of the on-demand SSB.

[0149] As a sub-embodiment of the above embodiment, the first signaling includes an ssb-periodicityServingCell (SSB period serving cell) field, and the ssb-periodicityServingCell field indicates the transmission period of the on-demand SSB.

[0150] As an embodiment, the first node is configured with a plurality of candidate values of the transmission period of the on-demand SSB, and the first signaling indicates one of the plurality of candidate values of the transmission period of the on-demand SSB.

[0151] As an embodiment, before receiving the first signaling, the first node is configured with a first information set; the first information set includes at least part of the frequency, subcarrier spacing, transmission power, on-demand SSB position, and transmission period of the on-demand SSB.

[0152] As an embodiment, the first signaling indicates the duration of receiving the on-demand SSB burst.

[0153] As an embodiment, the transmission period of the on-demand SSB is the period of the on-demand SSB burst.

[0154] As an embodiment, the first signaling indicating the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the number of transmissions of the on-demand SSB burst.

[0155] As an embodiment, the first signaling indicating the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the start time of the transmission of the on-demand SSB.

[0156] As an example, the indication by the first signaling of the transmission of the on-demand SSB in the first cell includes: the first signaling indicates the end time of the transmission of the on-demand SSB.

[0157] As an example, the end time of the transmission of the on-demand SSB is indicated by a signaling other than the first signaling.

[0158] As an example, the beam-related measurement is for beam failure detection.

[0159] As an example, the beam-related measurement is for beam failure recovery.

[0160] As an example, the beam failure detection for the first cell is performed in the first time window.

[0161] As an example, the candidate beam detection for the first cell is performed in the first time window; wherein, the beam failure recovery is triggered in the first cell.

[0162] As an example, the duration of the first time window depending on the transmission of the on-demand SSB includes: the duration of the first time window is not greater than the time interval between the start time and the end time of the transmission of the on-demand SSB.

[0163] As an example, the start time of the first time window is not earlier than the start time of the transmission of the on-demand SSB.

[0164] As an example, the end time of the first time window is not later than the end time of the transmission of the on-demand SSB.

[0165] As an example, the beam-related measurement is performed in the initial downlink BWP (Bandwidth Part) of the first cell.

[0166] As an example, the beam-related measurement is performed in a BWP other than the initial downlink BWP of the first cell.

[0167] As an example, the on-demand SSB is indicated by an SSB index (SSB-Index).

[0168] As an example, the SSB index includes an on-demand SSB index.

[0169] As an example, the SSB index is an on-demand SSB index.

[0170] As an example, the first reference signal is a CSI-RS.

[0171] As an example, the first reference signal is a NZP (Non Zero Power) CSI-RS.

[0172] As an example, the first node is configured with a NZP-CSI-RS-Resource IE, and the NZP-CSI-RS-Resource configures the first reference signal.

[0173] As an example, the first reference signal is indicated by a reference signal index.

[0174] As an example, the reference signal index is a CSI-RS index.

[0175] As an example, the reference signal index is a NZP-CSI-RS resource identifier (nzp-CSI-RS-ResourceId).

[0176] As an example, the first reference signal is a single-port reference signal.

[0177] As an example, the first reference signal is a two-port reference signal.

[0178] As an example, the reference signal and the on-demand SSB are of QCL type D (Type D).

[0179] As an example, the NZP-CSI-RS-Resource indicates a TCI state, and the TCI state indicates that the first reference signal and the on-demand SSB are of QCL type D.

[0180] As an example, the first node is configured with a RadioLinkMonitoringRS (Radio Link Monitoring Reference Signal), and the RadioLinkMonitoringRS indicates one of the reference signals used for the beam-related measurement.

[0181] As an example, the RadioLinkMonitoringRS includes a detectionResource field.

[0182] As an example, the detectionResource field indicates the SSB index of the on-demand SSB.

[0183] As an example, the detection resource domain indicates the reference signal index of the first reference signal.

[0184] As an example, the first node is configured with a RadioLinkMonitoringConfig (Radio Link Monitoring Configuration), and the RadioLinkMonitoringRS is indicated by the failureDetectionResourcesToAddModList (Failure Detection Resource Addition / Modification List) domain included in the RadioLinkMonitoringConfig.

[0185] As an example, the first node is configured with a BeamLinkMonitoringRS (Beam Link Monitoring Reference Signal), and the BeamLinkMonitoringRS indicates one of the reference signals used for the beam-related measurement.

[0186] As an example, the BeamLinkMonitoringRS includes a detectionResource domain.

[0187] As an example, the detection resource domain indicates the SSB index of the on-demand SSB.

[0188] As an example, the detection resource domain indicates the reference signal index of the first reference signal.

[0189] As an example, the BeamLinkMonitoringRS is indicated by the bfdResourcesToAddModList (BFD Resource Addition / Modification List) domain included in a BeamFailureDetectionSet (Beam Failure Detection Set).

[0190] As an example, the BeamFailureDetectionSet is indicated by the failureDetectionSet1 (Failure Detection Set 1) domain or the failureDetectionSet2 (Failure Detection Set) domain included in the BeamFailureDetection (Beam Failure Detection); wherein, the BeamFailureDetection is indicated by the beamFailure (Beam Failure) domain included in the RadioLinkMonitoringConfig.

[0191] As an example, the first node is configured with a CandidateBeamRS (Candidate Beam Reference Signal), and the CandidateBeamRS indicates one of the reference signals used for beam-related measurements.

[0192] As an example, the CandidateBeamRS field indicates the on-demand SSB.

[0193] As an example, the CandidateBeamRS field indicates the first reference signal.

[0194] As an example, the CandidateBeamRS includes the serving cell index (ServCellIndex) of the first cell.

[0195] As an example, the CandidateBeamRS includes a candidate beam configuration (candidateBeamConfig) field, and the candidate beam configuration field indicates the SSB index of the on-demand SSB.

[0196] As an example, the CandidateBeamRS includes a candidate beam configuration (candidateBeamConfig) field, and the candidate beam configuration field indicates the reference signal index of the first reference signal.

[0197] As an example, the first node is configured with a BeamFailureRecoveryRSConfig (Beam Failure Recovery Reference Signal Configuration); wherein, the first node is configured with a BWP-DownlinkDedicated (BWP Downlink Dedicated), and the IE BWP-DownlinkDedicated includes a beamFailureRecoverySCellConfig (Beam Failure Recovery SCell Configuration) field, and the beamFailureRecoverySCellConfig indicates the BeamFailureRecoveryRSConfig.

[0198] As an example, the CandidateBeamRS is indicated by the candidateBeamRS-List (Candidate Beam Reference Signal List) field included in the BeamFailureRecoveryRSConfig.

[0199] As an example, the CandidateBeamRS is indicated by the candidateBeamRS-List2 (Candidate Beam Reference Signal List 2) field included in the BeamFailureRecoveryRSConfig.

[0200] Example 2

[0201] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 as follows. Figure 2A diagram showing the network architecture 200 of NR 5G, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) systems. The NR 5G, LTE, or LTE-A network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the 5GS / EPS provides packet-switched services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The NG-RAN includes NR Node B (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol terminations towards the UE 201. The gNB 203 may be connected to other gNBs 204 via the Xn interface (e.g., a backhaul link). The XnAP protocol of the Xn interface is used to transmit control plane messages of the radio network, and the user plane protocol of the Xn interface is used to transmit user plane data. The gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmission Reception Point), or some other suitable term. In an NTN (Non Terrestrial Network) network, the gNB 203 may be a satellite, an aircraft, or a terrestrial base station relayed by a satellite. The gNB 203 provides an access point for the UE 201 to the 5GC / EPC 210.Examples of the UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, in-vehicle devices, in-vehicle communication units, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The gNB 203 is connected to the 5GC / EPC 210 through the S1 / NG interface. The 5GC / EPC 210 includes a Mobility Management Entity (MME) / Authentication Management Field (AMF) / Session Management Function (SMF) 211, other MME / AMF / SMFs 214, a Serving Gateway (S-GW) / User Plane Function (UPF) 212, and a Packet Data Network Gateway (P-GW) / UPF 213. The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes the operator's corresponding Internet protocol services, specifically including the Internet, intranet, IP Multimedia Subsystem (IMS), and Packet Switching (PS) streaming services.

[0202] As an embodiment, the UE 201 corresponds to the first node in this application.

[0203] As an example, the gNB 203 corresponds to the second node in this application.

[0204] As an example, the UE 201 is a user equipment.

[0205] As an example, the gNB 203 is a macro cell base station.

[0206] As an example, the gNB 203 is a micro cell base station.

[0207] As an example, the gNB 203 is a pico cell base station.

[0208] As an example, the gNB 203 is a femtocell.

[0209] As an example, the gNB 203 is a base station device that supports large time delay differences.

[0210] As an example, the gNB 203 is an airborne platform device.

[0211] As an example, the gNB 203 is a satellite device.

[0212] As an example, the gNB 203 is a base station device that supports large time delay differences.

[0213] As an example, the gNB 203 is a test device (such as a transceiver that simulates some functions of a base station, a signaling tester).

[0214] As an example, the radio link from the UE 201 to the gNB 203 is an uplink, and the uplink is used to perform uplink transmission.

[0215] As an example, the radio link from the UE 241 to the gNB 203 is an uplink, and the uplink is used to perform uplink transmission.

[0216] As an example, the radio link from the gNB 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0217] As an example, the radio link from the gNB 203 to the UE 241 is a downlink, and the downlink is used to perform downlink transmission.

[0218] As an example, the UE 201 and the gNB 203 are connected through the Uu air interface.

[0219] As an example, the UE 241 and the gNB 203 are connected through the Uu air interface.

[0220] As an example, the UE 201 and the UE 241 are connected through the PC5 air interface.

[0221] Example 3

[0222] Embodiment 3 exemplifies a schematic diagram of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as follows. Figure 3 It is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture of the control plane 300 of the UE and the gNB is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. Layer 1 will be referred to as PHY 301 in this document. Layer 2 (L2 layer) 305 is above PHY 301 and is responsible for the link between the UE and the gNB through PHY 301. Layer 2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the gNB on the network side. The PDCP sublayer 304 provides data encryption and integrity protection. The PDCP sublayer 304 also provides handover support for the UE between gNBs. The RLC sublayer 303 provides segmentation and reassembly of data packets, retransmission of lost data packets through ARQ (Automatic Repeat Request), and also provides duplicate data packet detection and protocol error detection. The MAC sublayer 302 provides the mapping between logical channels and transport channels and the multiplexing of logical channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell among UEs. The MAC sublayer 302 is also responsible for HARQ (Hybrid Automatic Repeat Request) operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the gNB and the UE. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). The radio protocol architecture in the user plane 350 is generally the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for the mapping between QoS flows and data radio bearers to support service diversity.The radio protocol architecture of the UE in the user plane 350 may include some or all of the protocol sub-layers of the SDAP sub-layer 356, PDCP sub-layer 354, RLC sub-layer 353, and MAC sub-layer 352 at the L2 layer. Although not shown, the UE may also have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, server, etc.).

[0223] As an example, the PDCP 304 sends data to the RLC 303 or receives data from the RLC 303 through the RLC channel.

[0224] As an example, the PDCP 354 sends data to the RLC 353 or receives data from the RLC 353 through the RLC channel.

[0225] As an example, the RLC 303 sends data to the MAC 302 or receives data from the MAC 302 through the logical channel.

[0226] As an example, the RLC 353 sends data to the MAC 352 or receives data from the MAC 352 through the logical channel.

[0227] As an example, the MAC 302 sends data to the PHY 301 or receives data from the PHY 301 through the transport channel.

[0228] As an example, the MAC 352 sends data to the PHY 351 or receives data from the PHY 351 through the transport channel.

[0229] As an example, attached Figure 3 The radio protocol architecture is applicable to the first node in this application.

[0230] As an example, attached Figure 3 The radio protocol architecture is applicable to the second node in this application.

[0231] As an example, the first signaling in this application is generated at the RRC 306.

[0232] As an example, the first signaling in this application is generated at the MAC 302 or the MAC 352.

[0233] As an example, the first signaling in this application is generated at the PHY 301 or the MAC 351.

[0234] As an example, the second signaling in the present application is generated by the MAC 302 or the MAC 352.

[0235] As an example, the L2 layer 305 or 355 belongs to a higher layer.

[0236] As an example, the RRC sublayer 306 in the L3 layer belongs to a higher layer.

[0237] Example 4

[0238] Example 4 illustrates a schematic diagram of the hardware modules of a communication device according to an embodiment of the present application, as shown in the appendix Figure 4 as follows. Figure 4 It is a block diagram of a first communication device 450 and a second communication device 410 that communicate with each other in an access network.

[0239] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0240] The second communication device 410 includes a controller / processor 475, a memory 476, a data source 477, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.

[0241] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network or from the data source 477 are provided to the controller / processor 475. The core network and the data source 477 represent all protocol layers above the L2 layer. The controller / processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate FEC (Forward Error Correction) at the second communication device 410, and mapping of signal constellations based on various modulation schemes (e.g., BPSK (Binary Phase Shift Keying), QPSK (Quadrature Phase Shift Keying), M-PSK (M-Phase Shift Keying), M-QAM (M-Quadrature Amplitude Modulation)). The multi-antenna transmit processor 471 performs digital space precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses IFFT (Inverse Fast Fourier Transform) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to different antennas 420.

[0242] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the FFT (Fast Fourier Transform) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any spatial streams destined for the first communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover higher layer data packets from the second communication device 410. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0243] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, an upper layer data packet is provided to the controller / processor 459 using the data source 467. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function described at the second communication device 410 in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing. The multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated spatial streams into multi-carrier / single-carrier symbol streams, and after passing through the analog precoding / beamforming operation in the multi-antenna transmit processor 457, provides them to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0244] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the receive function described at the first communication device 450 in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packet from the first communication device 450. The upper layer data packet from the controller / processor 475 may be provided to the core network or all protocol layers above the L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.

[0245] As an example, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives first signaling, the first signaling indicating the transmission of on-demand SSB in a first cell; performs beam-related measurements for the first cell in a first time window; wherein the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0246] As an example, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving first signaling, the first signaling indicating the transmission of on-demand SSB in a first cell; performing beam-related measurements for the first cell in a first time window; wherein the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0247] As an example, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 at least: sends first signaling, the first signaling indicating the transmission of on-demand SSB in a first cell; wherein beam-related measurements for the first cell are performed in a first time window; the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0248] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, which generates actions when executed by at least one processor, and the actions include: sending a first signaling, the first signaling indicating the transmission of on-demand SSB in a first cell; wherein, beam-related measurements for the first cell are performed in a first time window; the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0249] As an embodiment, the first communication device 450 corresponds to the first node in the present application.

[0250] As an embodiment, the second communication device 410 corresponds to the second node in the present application.

[0251] As an embodiment, the first communication device 450 is a user equipment.

[0252] As an embodiment, the first communication device 450 is a layer 3 relay node.

[0253] As an embodiment, the first communication device 450 is an RSU (Road Side Unit).

[0254] As an embodiment, the second communication device 410 is a base station.

[0255] As an embodiment, the second communication device 410 is a distributed unit of a base station.

[0256] As an embodiment, the second communication device 410 is a piece of code in a distributed unit of a base station.

[0257] As an embodiment, at least one of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456 or the controller / processor 459 is used to receive the first signaling in the present application.

[0258] As an embodiment, at least one of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416 or the controller / processor 475 is used to send the first signaling in the present application.

[0259] As an example, at least one of the antenna 452, the transmitter 454, the multi-antenna transmission processor 457, the transmission processor 468, or the controller / processor 459 is used to send the second signaling in this application.

[0260] As an example, at least one of the antenna 420, the receiver 418, the multi-antenna reception processor 472, the reception processor 470, or the controller / processor 475 is used to receive the second signaling in this application.

[0261] Example 5

[0262] Embodiment 5 exemplifies a wireless signal transmission flowchart between a first node and a second node according to an embodiment of this application, as shown in the appendix Figure 5 as follows. In the appendix Figure 5 shown, the first node N51 and the second node N52 communicate through an air interface. It should be specifically noted that the order in this example does not limit the signal transmission order and implementation order in this application. In the appendix Figure 5 shown, the steps included in the dashed box F501 are optional.

[0263] For First Node N51 , in step S511, receive a first signaling that indicates the transmission of an on-demand SSB in a first cell; in step S512, perform beam-related measurements for the first cell in a first time window; in step S513, trigger beam failure recovery.

[0264] For Second Node N52 , in step S521, send the first signaling.

[0265] In Embodiment 5, receive a first signaling that indicates the transmission of an on-demand SSB in a first cell; perform beam-related measurements for the first cell in a first time window; wherein, the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB; the reference signal used for the beam-related measurements includes a first reference signal that is associated with the on-demand SSB.

[0266] As an example, the first signaling is sent and received through an air interface.

[0267] As an example, the air interface is a Uu interface.

[0268] As an example, the first node N51 is a UE.

[0269] As an example, the first node N51 is a terminal.

[0270] As an example, the first node N51 is the first node in this application.

[0271] As an example, the second node N52 is a base station.

[0272] As an example, the second node N52 is the serving base station of the serving cell of the first node N51.

[0273] As an example, the second node N52 is the TRP (Transmit / Receive Point) of the serving cell of the first node N51.

[0274] As an example, the second node N52 is the serving base station of the master cell group (MCG) of the first node N51.

[0275] As an example, the second node N52 is the serving base station of the secondary cell group (SCG) of the first node N51.

[0276] As an example, the second node N52 is the MgNB (master gNB).

[0277] As an example, the second node N52 is the SgNB (secondary gNB).

[0278] As an example, the second node N52 is the second node in this application.

[0279] As an example, the first signaling is received on the first cell or the second cell.

[0280] As an example, receiving on a cell means receiving through the radio air interface resources of a cell.

[0281] As an example, the first cell and the second cell belong to the same cell group.

[0282] As an example, the cell group is the master cell group.

[0283] As an example, the cell group is the secondary cell group.

[0284] As an embodiment, regardless of whether the beam failure recovery is triggered within the first time window in the first cell, the beam-related measurement includes the beam failure detection.

[0285] As an embodiment, the first cell is deactivated for at least part of the first time window, and whether the first node performs the beam-related measurement during at least part of the time depends on the implementation.

[0286] As an embodiment, when the beam failure recovery is triggered at the first moment in the first cell, the beam-related measurement performed after the start time of the first time window includes the candidate beam detection; wherein, the first moment is before the start time of the first time window, and the beam failure recovery is not cancelled before the start time of the first time window.

[0287] As an embodiment, when the beam failure recovery is triggered at the first moment in the first cell, the beam-related measurement performed after the first moment and before the beam failure recovery is cancelled includes the candidate beam detection; wherein, the first moment is within the first time window.

[0288] As a sub-embodiment of two embodiments, the first cell is deactivated and the beam failure recovery is cancelled.

[0289] As a sub-embodiment of two embodiments, the second signaling is sent and the beam failure recovery is cancelled.

[0290] Example 6

[0291] Embodiment 6 exemplifies a schematic diagram of the on-demand SSB transmission according to an embodiment of the present application, as shown in the appendix Figure 6 shown. In the appendix Figure 6 shown, the unfilled rectangle represents a time window, and the rectangle filled with grid lines represents an on-demand SSB burst; the length of the rectangle does not represent the absolute time length in the time domain.

[0292] In Embodiment 6, the transmission of the on-demand SSB includes respectively transmitting a plurality of on-demand SSB bursts within a plurality of on-demand transmission time windows; wherein, the durations of the plurality of on-demand transmission time windows are the same; the plurality of on-demand transmission time windows and the plurality of on-demand SSB bursts are both periodic; the first signaling indicates the period of the on-demand transmission time window or the period of the on-demand SSB burst.

[0293] As an embodiment, the transmission of the on-demand SSB includes a plurality of on-demand transmission time windows with the same duration transmitted periodically, and the on-demand transmission time window includes a plurality of on-demand SSB bursts transmitted periodically.

[0294] As an embodiment, T1 in Figure 6 represents the period of the on-demand SSB burst, and the first signaling indicates the T1.

[0295] As an embodiment, T2 in Figure 6 represents the period of the on-demand transmission time window, and the first signaling indicates the T2.

[0296] As an embodiment, the T2 is greater than the duration of the on-demand transmission time window, and the duration of the on-demand transmission time window is greater than the T1.

[0297] As an embodiment, the duration of the on-demand transmission time window is a positive integer multiple of the T1.

[0298] As an embodiment, the duration of the on-demand transmission time window is the product of the T1 and the number of the plurality of on-demand SSB bursts included in the on-demand transmission time window.

[0299] As an embodiment, the duration of the first time window is a positive integer multiple of the T2.

[0300] As an embodiment, the duration of the first time window is the product of the T2 and the number of the plurality of on-demand transmission time windows.

[0301] As an embodiment, the first signaling indicates the number of the plurality of on-demand transmission time windows and the number of the plurality of on-demand SSB bursts.

[0302] As an embodiment, the first signaling indicates the duration of the on-demand transmission time window.

[0303] As an embodiment, the first signaling indicates the gap between adjacent on-demand transmission time windows among the plurality of on-demand transmission time windows.

[0304] As an embodiment, the gap between adjacent on-demand transmission time windows is the time interval between the end time of the previous on-demand transmission time window and the start time of the next on-demand transmission time window.

[0305] As an embodiment, the start time of the on-demand transmission time window is the time slot boundary of the first on-demand SSB time domain position in the first on-demand SSB burst included in the on-demand transmission time window.

[0306] As an example, the start time of the on-demand transmission time window is the slot boundary of the time domain position of the first actually transmitted on-demand SSB in the first on-demand SSB burst included in the on-demand transmission time window.

[0307] As an example, the end time of the on-demand transmission time window is the slot boundary of the time domain position of the last on-demand SSB in the last on-demand SSB burst included in the on-demand transmission time window.

[0308] As an example, the end time of the on-demand transmission time window is the slot boundary of the time domain position of the last actually transmitted on-demand SSB in the last on-demand SSB burst included in the on-demand transmission time window.

[0309] As an example, the end time of the on-demand transmission time window is the start time of the last on-demand SSB burst included in the on-demand transmission time window plus the period of the on-demand SSB burst.

[0310] As an example, the start time of the transmission of the on-demand SSB is the start time of the first on-demand transmission time window among the multiple on-demand transmission time windows.

[0311] As an example, the end time of the transmission of the on-demand SSB is the end time of the last on-demand transmission time window among the multiple on-demand transmission time windows.

[0312] Example 7

[0313] Embodiment 7 exemplifies a schematic diagram of a first signaling and a first time window according to an embodiment of the present application, as shown in the appendix Figure 7 shown. In the appendix Figure 7 , the length of the rectangle does not represent the absolute time length in the time domain.

[0314] As an example, the first signaling indicates the timing offset between the end of the reception of the first signaling and the start time of the transmission of the on-demand SSB, as shown by the timing offset in the appendix Figure 7 .

[0315] As an example, the start time of the transmission of the on-demand SSB is equivalent to the start time of the first time window.

[0316] As an example, the start time of the first time window is the end of the reception of the first signaling plus the timing offset.

[0317] As an embodiment, the timing offset between the end of reception of the first signaling and the start time of the transmission of the on-demand SSB is greater than or equal to a first offset.

[0318] As an embodiment, the first signaling indicates the first offset.

[0319] As an embodiment, the first offset is configured.

[0320] As an embodiment, the first offset is predefined.

[0321] As an embodiment, the first offset is time slots; where, the represents the number of time slots within a subframe.

[0322] As an embodiment, the start time of the transmission of the on-demand SSB is not earlier than time slot where, the PDSCH carrying the first signaling ends reception in time slot n, and the PUCCH (Physical Uplink Control Channel) transmission carrying the HARQ (Hybrid Automatic Repeat Request)-ACK (Acknowledgment) information for the PDSCH ends transmission in time slot n+m, the represents the number of time slots within a subframe.

[0323] Example 8

[0324] Embodiment 8 exemplifies another flowchart of wireless signal transmission between a first node and a second node according to an embodiment of the present application, as shown in the appendix Figure 8 shown. In the appendix Figure 8 a first node N81 and a second node N82 communicate via an air interface.

[0325] For First Node N81 , in step S811, beam failure recovery is triggered; in step S812, a second signaling is sent.

[0326] For Second Node N82 , in step S821, the first signaling is received.

[0327] In Embodiment 8, beam failure recovery is triggered at a first moment in the first cell; a second signaling is sent, and the second signaling indicates the beam failure recovery; wherein whether the second signaling indicates the on-demand SSB depends on a second time window; a start time of the second time window is a later one of the start time of the first time window and the first moment; an end time of the second time window is a second moment; the second moment is within the first time window; generating the second signaling is indicated at the second moment, or a scheduling request for the second signaling is triggered.

[0328] As an embodiment, the second signaling is sent and received through an air interface.

[0329] As an embodiment, the first node N81 is a UE.

[0330] As an embodiment, the first node N81 is a terminal.

[0331] As an embodiment, the first node N81 is the first node in this application.

[0332] As an embodiment, the second node N82 is a base station.

[0333] As an embodiment, the second node N82 maintains the first cell.

[0334] As an embodiment, the second node N82 is the second node in this application.

[0335] As an embodiment, the second signaling is sent on the first cell.

[0336] As an embodiment, sending on a cell means: sending through the radio resources of a cell.

[0337] As an embodiment, in response to triggering the beam failure recovery at the first moment, candidate beam evaluation is performed in the second time window.

[0338] As an embodiment, the candidate beam evaluation at least includes measuring the on-demand SSB.

[0339] As an embodiment, the candidate beam evaluation at least includes measuring the first reference signal.

[0340] As an embodiment, the first cell is active on the second time window.

[0341] As an embodiment, the second signaling is transmitted through the UL-SCH.

[0342] As an example, the second signaling is transmitted on the PUSCH.

[0343] As an example, at the second moment, if UL-SCH (Uplink Shared Channel) resources are available for a new transmission and if the UL-SCH resources can accommodate the second signaling and its subheader, the Multiplexing and Assembly procedure is instructed to generate the second signaling.

[0344] As an example, at the second moment, if there are no UL-SCH resources available for a new transmission, the scheduling request for the second signaling is triggered.

[0345] As an example, at the second moment, if there are UL-SCH resources available for a new transmission but the UL-SCH resources are not sufficient to accommodate the second signaling and its header, the scheduling request for the second signaling is triggered.

[0346] As an example, the second signaling is sent on the first cell.

[0347] As an example, the second signaling is sent on the second cell.

[0348] As an example, the second signaling is a BFRMAC CE.

[0349] As an example, the second signaling is a Truncated BFRMAC CE.

[0350] As an example, the second signaling is an Enhanced BFRMAC CE.

[0351] As an example, the second signaling is a Truncated Enhanced BFRMAC CE.

[0352] As an example, the second signaling indicating the beam failure recovery includes: the second signaling indicates that a beam failure is detected in the first cell.

[0353] As an example, the second signaling indicating the beam failure recovery includes: cancelling the beam failure recovery along with the transmission of the second signaling.

[0354] As an example, the second signaling includes the secondary cell identifier of the first cell.

[0355] As an embodiment, whether the second signaling indicates a second reference signal depends on a second time window; wherein the second reference signal is one of the reference signals used for the beam-related measurement.

[0356] As a sub - embodiment of the above - mentioned embodiment, the second reference signal is the on - demand SSB.

[0357] As a sub - embodiment of the above - mentioned embodiment, the second reference signal is the first reference signal.

[0358] As an embodiment, the second signaling includes an AC field, and the AC field indicates whether a Candidate RS ID field exists.

[0359] As an embodiment, the second signaling includes the Candidate RS ID field; wherein the value of the AC field is 1.

[0360] As an embodiment, the second signaling indicates the on - demand SSB, and the Candidate RS ID field indicates the SSB index of the on - demand SSB.

[0361] As an embodiment, the second signaling indicates the first reference signal, and the Candidate RS ID field indicates the reference signal index of the first reference signal.

[0362] As an embodiment, the second signaling does not indicate the on - demand SSB, and the second signaling does not include the Candidate RS ID field indicating the SSB index of the on - demand SSB.

[0363] As an embodiment, the second signaling does not indicate the first reference signal, and the second signaling does not include the Candidate RS ID field indicating the reference signal index of the first reference signal.

[0364] As an embodiment, the Candidate RS ID field indicates a reference signal other than the on - demand SSB and the first reference signal; wherein the value of the AC field is 1.

[0365] Example 9

[0366] Embodiment 9 exemplifies a schematic diagram of the relationship between a first time, a first time window, and a second time window according to an embodiment of the present application, as shown in the appendix Figure 9 shown. In the appendix Figure 9 the length of the rectangle does not represent the absolute time length in the time domain.

[0367] In Embodiment 9, a second signaling is sent, and the second signaling indicates the beam failure recovery; wherein, whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; at the second moment, generating the second signaling is indicated, or a scheduling request for the second signaling is triggered; when the second time window is smaller than a first evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the first evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on the measurement result for the on-demand SSB in the second time window.

[0368] In attachment Figure 9 In case (a), the beam failure recovery is triggered within the first time window, the start time of the second time window is the first moment, and the end time of the second time window is the second moment.

[0369] In attachment Figure 9 In case (b), the beam failure recovery is triggered before the start time of the first time window, and the start time of the second time window is the start time of the first time window.

[0370] As an embodiment, the first moment is not later than the end time of the first time window.

[0371] As an embodiment, the time between when the beam failure recovery is triggered and when the beam failure recovery is cancelled at least partially overlaps with the first time window.

[0372] As an embodiment, the second time window is a subset of the first time window in the time domain.

[0373] As an embodiment, the second time window is a proper subset of the first time window in the time domain.

[0374] As an embodiment, that whether the second signaling indicates the on-demand SSB depends on the second time window includes: when the second time window is smaller than the first evaluation requirement, the second signaling does not indicate the on-demand SSB.

[0375] As an embodiment, that whether the second signaling indicates the first reference signal depends on the second time window includes: when the second time window is smaller than the first evaluation requirement, the second signaling does not indicate the first reference signal.

[0376] As an example, the meaning that the second time window is smaller than the first evaluation requirement is that the duration of the second time window is smaller than the first evaluation requirement.

[0377] As an example, when the second time window is smaller than the first evaluation requirement, the candidate beam evaluation for the on-demand SSB is not completed.

[0378] As an example, when the second time window is smaller than the first evaluation requirement, the candidate beam evaluation for the first reference signal is not completed.

[0379] As an example, whether the second signaling indicates the on-demand SSB depends on the second time window, including: when the second time window is greater than or equal to the first evaluation requirement, whether the second signaling indicates the on-demand SSB also depends on the measurement result for the on-demand SSB in the second time window.

[0380] As an example, the measurement result is RSRP (Reference Signal Received Power).

[0381] As an example, the measurement result is L1-RSRP.

[0382] As an example, the measurement result is not filtered.

[0383] As an example, the measurement result is filtered by layer 1.

[0384] As an example, whether the second signaling indicates the first reference signal depends on the second time window.

[0385] As an example, whether the second signaling indicates the first reference signal depends on the second time window, including: when the second time window is greater than or equal to the first evaluation requirement, whether the second signaling indicates the first reference signal also depends on the measurement result for the first reference signal in the second time window.

[0386] As an example, the second time window being greater than or equal to the first evaluation requirement includes: the duration of the second time window being equal to the first evaluation requirement.

[0387] As an example, the second time window being greater than or equal to the first evaluation requirement includes: the duration of the second time window being greater than the first evaluation requirement.

[0388] As an example, the second time window being greater than or equal to the first evaluation requirement includes: at the second moment, at least T ms of measurement has been performed on the on-demand SSB; where T is the first evaluation requirement.

[0389] As an example, the second time window being greater than or equal to the first evaluation requirement includes: at the second moment, at least T ms of measurement has been performed on the first reference signal; where T is the first evaluation requirement.

[0390] As an example, at the second moment, the measurement result of at least one of the reference signals used for the beam-related measurement becomes better than a second threshold during the most recent T ms period; where T is the first evaluation requirement.

[0391] As an example, whether the second signaling indicates the on-demand SSB also depends on the measurement result of the on-demand SSB in the second time window, including: at the second moment, the measurement result of the first reference signal during the most recent T ms period becomes better than a second threshold; where T is the first evaluation requirement.

[0392] As an example, whether the second signaling indicates the first reference signal also depends on the measurement result of the first reference signal in the second time window, including: at the second moment, the measurement result of the first reference signal during the most recent T ms period becomes better than a second threshold; where T is the first evaluation requirement.

[0393] As an example, the second threshold is Q in_LR 。

[0394] As an example, the first threshold depends on the type of the reference signal.

[0395] As an example, the first node is configured with BeamFailureRecoveryConfig (beam failure recovery configuration).

[0396] As an example, the BeamFailureRecoveryConfig indicates the second threshold.

[0397] As an example, the second threshold is indicated by an rsrp-ThresholdBFR (RSRP threshold BFR) field.

[0398] As an example, the rsrp-ThresholdBFR field is located in the BeamFailureRecoveryRSConfig.

[0399] As an example, the BeamFailureRecoveryRSConfig simultaneously indicates the rsrp-ThresholdBFR field and the on-demand SSB.

[0400] As an example, the BeamFailureRecoveryRSConfig simultaneously indicates the rsrp-ThresholdBFR field and the first reference signal.

[0401] As an example, the first evaluation requirement depends on the period of the on-demand transmission time window or the period of the on-demand SSB burst.

[0402] As an example, the first evaluation requirement is a multiple of the period of the on-demand transmission time window.

[0403] As an example, the first evaluation requirement is a multiple of the period of the on-demand SSB burst.

[0404] As an example, the first evaluation requirement is a multiple of the period of the first reference signal.

[0405] As an example, the first evaluation requirement is T Evaluate_CBD_SSB 。

[0406] As an example, the first evaluation requirement is T Evaluate_CBD_CSI-RS 。

[0407] As an example, the unit of the first evaluation requirement is ms (millisecond).

[0408] As an example, the first evaluation requirement is 25 ms.

[0409] As an example, the first evaluation requirement is and the product of the first variable; where, is the ceiling operation; parameters P, parameter N, parameter P CBD represent scaling factors; the first evaluation requirement applies to the on-demand SSB.

[0410] As an example, the value of the parameter P refers to the provisions in Protocol 38.133.

[0411] As an example, the value of the parameter N is one of 1, 1.5, 4, 6, 8, 12.

[0412] As an example, the value of the parameter R is 1.

[0413] As an example, the value of the parameter R depends on the transmission of the on-demand SSB.

[0414] As an example, the parameter R is equal to 1 / Y; where Y is the number of on-demand SSB bursts included in the on-demand transmission time window.

[0415] As an example, the parameter R is equal to where is the ceiling operation; T0 is the duration of the on-demand transmission time window, and T1 is the period of the first reference signal.

[0416] As an example, the parameter R is equal to where is the floor operation; T0 is the duration of the on-demand transmission time window, and T1 is the period of the first reference signal.

[0417] As an example, the first variable is the period of the on-demand SSB burst.

[0418] As an example, the first variable is the period of the on-demand transmission time window.

[0419] As an example, the first variable is the DRX period.

[0420] As an example, the first node is not activated for DRX (Discontinuous Reception).

[0421] As an example, the first node is activated for DRX and the DRX period is greater than 320 ms.

[0422] As an example, the first node is activated for DRX and the DRX period is less than or equal to 320 ms.

[0423] As an example, the first variable is the larger value of the period of the on-demand SSB burst and the DRX period.

[0424] As an example, the first variable is the larger value of the period of the on-demand transmission time window and the DRX period.

[0425] As an example, the parameter P CBD has a value equal to the number of frequency bands for which the UE performs beam failure detection on the first cell.

[0426] As an example, the parameter P CBD has a value that is the number of frequency bands for which the UE performs the beam failure detection on the first cell × 2.

[0427] As an example, the first evaluation requirement is the larger value between 25 ms and the product of the ; where CBD is the ceiling operation; the parameter P, the parameter N, and the parameter P

[0428] As an example, the first evaluation requirement is the product of the ; where BFD and the parameter P CBD represent scaling factors; the parameter P, the parameter N, and the parameter P CBD are all configured; the first evaluation requirement applies to the first reference signal.

[0429] As an example, the parameter M CBD has a value of 3.

[0430] As an example, the first variable is the period of the first reference signal.

[0431] As an example, the first variable is the larger value between the period of the first reference signal and the DRX period.

[0432] As an example, the first evaluation requirement is the larger value between 25 ms and the product of the ; where CBD and the parameter P CBD represent scaling factors; the first evaluation requirement applies to the first reference signal.

[0433] Example 10

[0434] Example 10 illustrates a schematic diagram of the relationship between a first moment and a first time window according to an embodiment of the present application, as shown in the appendix Figure 10 . In the appendix Figure 10 , the length of the rectangle does not represent the absolute time length in the time domain.

[0435] In Embodiment 10, beam failure recovery is triggered in the first cell at a first moment; the triggering of the beam failure recovery depends on the measurement result of the reference signal used for the beam-related measurement before the first moment within the first time window; wherein, the first moment is within the first time window; the time interval from the start time of the first time window to the first moment is greater than or equal to a second evaluation requirement.

[0436] As an embodiment, the beam failure recovery is triggered at the first moment; wherein, a first timer is running and not expired, and the value of a first counter is greater than or equal to a first counting threshold.

[0437] As an embodiment, the first counter is BFI_COUNTER (Beam Failure Instance Counter).

[0438] As an embodiment, the first counting threshold is beamFailureInstanceMaxCount (maximum number of beam failure instances).

[0439] As an embodiment, the first timer is beamFailureDetectionTimer (Beam Failure Detection Timer).

[0440] As an embodiment, the first threshold and the expiration value of the first timer are configured by the RadioLinkMonitoringConfig.

[0441] As an embodiment, the first threshold and the expiration value of the first timer are configured by the BeamFailureDetectionSet.

[0442] As an embodiment, the value of the first timer at the first moment is the first counting threshold.

[0443] As an embodiment, the value of the first counter at the first moment is greater than the first counting threshold.

[0444] As an embodiment, the triggering of the beam failure recovery depending on the measurement result of the reference signal used for the beam-related measurement before the first moment within the first time window includes: the count value of the first counter depends on the measurement result of the reference signal used for the beam-related measurement before the first moment within the first time window.

[0445] As an embodiment, the first node is configured with two BFD-RS sets, and the first reference signal set is one of the two BFD-RS sets.

[0446] As an embodiment, the first node is not configured with two BFD-RS sets, and the first reference signal set is all of the reference signals used for the beam-related measurements.

[0447] As an embodiment, the first reference signal set includes the on-demand SSB.

[0448] As an embodiment, the first reference signal set includes the first reference signal.

[0449] As an embodiment, when the measurement results for the first reference signal set in a beam failure detection are all greater than the first threshold, the first counter is incremented by one, and the first timer is started or restarted.

[0450] As an embodiment, the first threshold is Q out_LR 。

[0451] As an embodiment, the first threshold depends on the type of the reference signal.

[0452] As an embodiment, the first threshold is Q out_LR_SSB ;wherein the Q out_LR_SSB applies to the case where the reference signal is the on-demand SSB.

[0453] As a sub-embodiment of the above embodiment, the first threshold is derived based on the assumed PDCCH transmission parameters listed in Table 8.5.2.1-1 of Protocol 38.133.

[0454] As an embodiment, the first threshold is Q out_LR_CSI-RS ;wherein the Q out_LR_SSB applies to the case where the reference signal is CSI-RS.

[0455] As a sub-embodiment of the above embodiment, the first threshold is derived based on the assumed PDCCH transmission parameters listed in Table 8.5.3.1-1 of Protocol 38.133.

[0456] As an embodiment, the reference signals used for the beam-related measurements only include two reference signals, namely reference signal #1 and reference signal #2; when the measurement result of reference signal #1 is worse than the Q out_LR_SSB , and the measurement result of reference signal #2 is worse than the Q out_LR_CSI-RS in a measurement, the first counter is incremented by one, and the first timer is started or restarted; wherein reference signal #1 is the on-demand SSB and reference signal #2 is the first reference signal.

[0457] As an example, within the first time window, before the first moment, multiple measurements for the on-demand SSB are included.

[0458] As an example, within the first time window, before the first moment, multiple measurements for the first reference signal are included.

[0459] As an example, within the first time window, before the first moment, the measurement results of the multiple measurements for the on-demand SSB are worse than the first threshold at least X1 times; where X1 is the first counting threshold.

[0460] As an example, within the first time window, before the first moment, the measurement results of the multiple measurements for the first reference signal are worse than the first threshold at least X2 times; where X2 is the first counting threshold.

[0461] As an example, the unit of the second evaluation requirement is ms.

[0462] As an example, the second evaluation requirement is 50 ms.

[0463] As an example, the time interval from the start time of the first time window to the first moment is greater than the second evaluation requirement.

[0464] As an example, the time interval from the start time of the first time window to the first moment is equal to the second evaluation requirement.

[0465] As an example, the second evaluation requirement depends on the period of the on-demand transmission time window or the period of the on-demand SSB burst.

[0466] As an example, the second evaluation requirement is a multiple of the period of the on-demand transmission time window.

[0467] As an example, the second evaluation requirement is a multiple of the period of the on-demand SSB burst.

[0468] As an example, the second evaluation requirement is a multiple of the period of the first reference signal.

[0469] As an example, the second evaluation requirement is T Evaluate_BFD_SSB 。

[0470] As an example, the second evaluation requirement is T Evaluate_BFD_CSI-RS 。

[0471] As an example, the second evaluation requirement is The product with the first variable; wherein, is the ceiling operation; the parameters P, the parameter N, and the parameter R represent scaling factors; the second evaluation requirement applies to the on-demand SSB.

[0472] As an example, the second evaluation requirement is the larger value between 50 ms and the and the product of the first variable; wherein, is the ceiling operation; the parameters P, the parameter N, and the parameter R represent scaling factors; the second evaluation requirement applies to the on-demand SSB.

[0473] As an example, the second evaluation requirement is the larger value between 50 ms and the and the product of the first variable; wherein, is the ceiling operation; the parameters P, the parameter N, and the parameter R represent scaling factors; the second evaluation requirement applies to the on-demand SSB.

[0474] As an example, the second evaluation requirement is (50 × K2) ms and the and the product of the first variable; wherein, is the ceiling operation; the parameters P, the parameter N, and the parameter R represent scaling factors; the parameters K1 and K2 represent relaxation factors; the second evaluation requirement applies to the on-demand SSB.

[0475] As an example, the K1 is equal to 2, and the K2 is equal to 2.

[0476] As an example, the K1 is equal to 4, and the K2 is equal to 1.

[0477] As an example, the second evaluation requirement is and the product of the first variable; wherein, is the ceiling operation; the parameters P, the parameter N, the parameter M BFD , the parameter P BFD , the parameter R represent scaling factors; the second evaluation requirement applies to the first reference signal.

[0478] As an example, the parameter M BFD has a value of 10.

[0479] As an example, the parameter P BFD has a value of 2.

[0480] As an example, the parameter P BFDThe value is the number of frequency bands for which the UE performs the beam failure detection on the first cell.

[0481] As an embodiment, the parameter P BFD has a value of 2 times the number of frequency bands for which the UE performs the beam failure detection on the first cell.

[0482] As an embodiment, the second evaluation requirement is the larger value between 50 ms and the product of the where is the ceiling operation; the parameter P, the parameter N, the parameter M BFD , the parameter P BFD , the parameter R represents a scaling factor; the second evaluation requirement applies to the first reference signal.

[0483] As an embodiment, the second evaluation requirement is the larger value between 50 ms and the product of the where is the ceiling operation; the parameter P, the parameter N, the parameter M BFD , the parameter P BFD , the parameter R represents a scaling factor; the second evaluation requirement applies to the first reference signal.

[0484] As an embodiment, the second evaluation requirement is the larger value between (50 × K2) ms and the product of the where is the ceiling operation; the parameter P, the parameter N, the parameter M BFD , the parameter P BFD , the parameter R represents a scaling factor; the parameters K1 and K2 represent relaxation factors; the second evaluation requirement applies to the first reference signal.

[0485] Example 11

[0486] Example 11 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in the appendix Figure 11 .

[0487] In the appendix Figure 11 , the first node processing device 1100 includes a first receiver 1101 and a first transmitter 1102; the first node 1100 is a terminal, or the first node 1100 is a UE.

[0488] In Embodiment 11, the first receiver 1101 receives a first signaling, where the first signaling indicates the transmission of on-demand SSB in a first cell; performs beam-related measurements for the first cell within a first time window; where the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used for the beam-related measurements includes the on-demand SSB.

[0489] As an embodiment, the reference signal used for the beam-related measurements includes a first reference signal, and the first reference signal is associated with the on-demand SSB.

[0490] As an embodiment, the transmission of the on-demand SSB includes respectively transmitting a plurality of on-demand SSB bursts within a plurality of on-demand transmission time windows; where the durations of the plurality of on-demand transmission time windows are the same; the plurality of on-demand transmission time windows and the plurality of on-demand SSB bursts are both periodic; the first signaling indicates the periods of the on-demand transmission time windows and the on-demand SSB bursts.

[0491] As an embodiment, the start time of the first time window is the start time of the transmission of the on-demand SSB, and the end time of the first time window is the end time of the transmission of the on-demand SSB.

[0492] As an embodiment, beam failure recovery is triggered at a first moment in the first cell.

[0493] As an embodiment, beam failure recovery is triggered at a first moment in the first cell; the first transmitter 1102 transmits a second signaling, where the second signaling indicates the beam failure recovery; where whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; at the second moment, it is indicated to generate the second signaling, or a scheduling request for the second signaling is triggered.

[0494] As an example, the first transmitter 1102 transmits a second signaling, and the second signaling indicates the beam failure recovery; wherein whether the second signaling indicates the on-demand SSB depends on a second time window; a start time of the second time window is a later one of the start time of the first time window and the first moment; an end time of the second time window is a second moment; the second moment is within the first time window; generating the second signaling is indicated at the second moment, or a scheduling request for the second signaling is triggered; when the second time window is less than a second evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on a measurement result for the on-demand SSB in the second time window.

[0495] As an example, beam failure recovery is triggered at a first moment in the first cell; the triggering of the beam failure recovery depends on a measurement result of a reference signal used for beam-related measurements before the first moment within the first time window; wherein the first moment is within the first time window; a time interval from the start time of the first time window to the first moment is greater than or equal to a first evaluation requirement.

[0496] As an example, when the second time window is less than a second evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on a measurement result for the on-demand SSB in the second time window; an evaluation requirement depends on a period of the on-demand transmission time window or a period of the on-demand SSB burst; wherein the evaluation requirement is the second evaluation requirement, or the first evaluation requirement.

[0497] As an example, the first node 1100 is the first node in this application.

[0498] As an example, the first receiver 1101 includes a receiver 454 (including an antenna 452) Figure 4 in the appendix of this application, a receiving processor 456, a multi-antenna receiving processor 458, and a controller / processor 459.

[0499] As an example, the first receiver 1101 includes at least one of a receiver 454 (including an antenna 452) Figure 4 in the appendix of this application, a receiving processor 456, a multi-antenna receiving processor 458, or a controller / processor 459.

[0500] As an example, the first transmitter 1102 includes the transmitter 454 (including the antenna 452) attached to this application Figure 4 , a transmit processor 468, a multi-antenna transmit processor 457, and a controller / processor 459.

[0501] As an example, the first transmitter 1102 includes at least one of the transmitter 454 (including the antenna 452) attached to this application Figure 4 , the transmit processor 468, the multi-antenna transmit processor 457, or the controller / processor 459.

[0502] Example 12

[0503] Example 12 illustrates a structural block diagram of a processing device in a second node according to an embodiment of this application, as shown in the attachment Figure 12 .

[0504] In the attachment Figure 12 , the second node processing device 1200 includes a second receiver 1201 and a second transmitter 1202. The second node 1200 is a base station.

[0505] In Example 12, the first transmitter 1202 sends first signaling that indicates the transmission of on-demand SSBs in a first cell; wherein, beam-related measurements for the first cell are performed within a first time window; the first cell is a SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSBs; and the reference signal used for the beam-related measurements includes the on-demand SSBs.

[0506] As an example, the reference signal used for the beam-related measurements includes a first reference signal that is associated with the on-demand SSBs.

[0507] As an example, the transmission of the on-demand SSBs includes separately transmitting a plurality of on-demand SSB bursts within a plurality of on-demand transmission time windows; wherein, the durations of the plurality of on-demand transmission time windows are the same; the plurality of on-demand transmission time windows and the plurality of on-demand SSB bursts are both periodic; and the first signaling indicates the periods of the on-demand transmission time windows and the on-demand SSB bursts.

[0508] As an example, the start time of the first time window is the start time of the transmission of the on-demand SSBs, and the end time of the first time window is the end time of the transmission of the on-demand SSBs.

[0509] As an example, beam failure recovery is triggered at a first moment in the first cell.

[0510] As an example, beam failure recovery is triggered at a first moment in the first cell; the second receiver 1201 receives a second signaling; wherein, the beam failure recovery is cancelled; whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is the second moment; the second moment is within the first time window; at the second moment, the second signaling is indicated to be generated, or a scheduling request for the second signaling is triggered.

[0511] As an example, the second receiver 1201 receives a second signaling that indicates the beam failure recovery; whether the second signaling indicates the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is the second moment; the second moment is within the first time window; at the second moment, the second signaling is indicated to be generated, or a scheduling request for the second signaling is triggered; when the second time window is less than a second evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on the measurement result of the on-demand SSB in the second time window.

[0512] As an example, beam failure recovery is triggered at a first moment in the first cell; the triggering of the beam failure recovery depends on the measurement result of the reference signal used for the beam-related measurement before the first moment within the first time window; wherein, the first moment is within the first time window; the time interval from the start time of the first time window to the first moment is greater than or equal to a first evaluation requirement.

[0513] As an example, when the second time window is less than a second evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the second evaluation requirement, whether the second signaling indicates the on-demand SSB further depends on the measurement result of the on-demand SSB in the second time window; an evaluation requirement depends on the period of the on-demand transmission time window or the period of the on-demand SSB burst; wherein, the evaluation requirement is the second evaluation requirement, or the first evaluation requirement.

[0514] As an example, the second node 1200 is the second node in the present application.

[0515] As an example, the second receiver 1201 includes the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472, and the controller / processor 475 attached in the present application. Figure 4 in the present application.

[0516] As an example, the second receiver 1201 includes at least one of the receiver 418 (including the antenna 420), the receiving processor 470, the multi-antenna receiving processor 472, or the controller / processor 475 attached in the present application. Figure 4 in the present application.

[0517] As an example, the second transmitter 1202 includes the transmitter 418 (including the antenna 420), the transmitting processor 416, the multi-antenna transmitting processor 471, and the controller / processor 475 attached in the present application. Figure 4 in the present application.

[0518] As an example, the second transmitter 1202 includes at least one of the transmitter 418 (including the antenna 420), the transmitting processor 416, the multi-antenna transmitting processor 471, and the controller / processor 475 attached in the present application. Figure 4 in the present application.

[0519] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in a hardware form or in the form of a software functional module. The present application is not limited to any specific form of the combination of software and hardware. The first type of communication node or UE or terminal in the present application includes, but is not limited to, mobile phones, tablet computers, laptops, wireless network cards, low-power devices, eMTC (enhanced Machine Type Communication) devices, NB-IoT devices, vehicle-mounted communication devices, aircraft, airplanes, drones, remotely controlled aircraft, and other wireless communication devices. The second type of communication node or base station or network-side device in the present application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, eNBs, gNBs, transmission and reception nodes TRP (Transmission and Reception Point), relay satellites, satellite base stations, aerial base stations, test devices, such as transceiver devices that simulate some functions of base stations, signaling testers, and other wireless communication devices.

[0520] Those skilled in the art should understand that the present invention can be implemented in other specific forms without departing from its core or basic characteristics. Therefore, the presently disclosed embodiments should be considered as illustrative rather than restrictive in any case. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within the equivalent meaning and scope thereof are considered to be included therein.

Claims

1. A method in a first node for wireless communication, characterized in that: include: receiving first signaling indicating transmission of an on-demand SSB in a first cell; performing beam-related measurements for the first cell in a first time window; Among them, the first cell is SCell, the beam-related measurement includes at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used in the beam-related measurement includes the on-demand SSB.

2. The method in the first node according to claim 1, characterized in that: The reference signal used for the beam-related measurement includes a first reference signal, and the first reference signal is associated with the on-demand SSB.

3. The method in the first node according to claim 1 or 2, characterized in that: The transmitting of the on-demand SSB comprises transmitting a plurality of on-demand SSB bursts respectively within a plurality of on-demand transmission time windows; Among them, the durations of the multiple on-demand transmission time windows are the same; the multiple on-demand transmission time windows and the multiple on-demand SSB bursts are both periodic; and the first signaling indicates the period of the on-demand transmission time windows and the period of the on-demand SSB bursts.

4. The method in the first node according to any one of claims 1 to 3, characterized in that: The start time of the first time window is the start time of the transmission of the on-demand SSB, and the end time of the first time window is the end time of the transmission of the on-demand SSB.

5. The method in the first node according to any one of claims 4, characterized in that: include: Beam failure recovery is triggered in the first cell at a first moment.

6. The method in the first node according to claim 5, characterized in that: include: Sending a second signaling, where the second signaling indicates that the beam failure is recovered; Among them, whether the second signaling indicates that the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; the generation of the second signaling is indicated at the second moment, or a scheduling request for the second signaling is triggered.

7. The method in the first node according to claim 6, characterized in that: When the second time window is less than the first evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the first evaluation requirement, whether the second signaling indicates the on-demand SSB also depends on the measurement results of the on-demand SSB in the second time window.

8. The method in the first node according to any one of claims 5 to 7, characterized in that: The triggering of the beam failure recovery depends on the measurement result of the reference signal adopted for the beam-related measurement within the first time window and before the first time instant; The first moment is within the first time window; and the time interval from the start time of the first time window to the first moment is greater than or equal to the second evaluation requirement.

9. The method in the first node according to claim 7 or 8, characterized in that: an evaluation requirement dependent on said period of said on-demand send time window or said period of said on-demand SSB burst; The evaluation requirement is the first evaluation requirement or the second evaluation requirement.

10. A terminal, characterized in that: The terminal includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method according to any one of claims 1 to 9.

11. A method in a second node for wireless communication, characterized in that: include: Sending first signaling, wherein the first signaling indicates sending of an on-demand SSB in a first cell; In which, beam-related measurements are performed on the first cell in a first time window; the first cell is an SCell, and the beam-related measurements include at least one of beam failure detection or candidate beam detection; the duration of the first time window depends on the transmission of the on-demand SSB; the reference signal used in the beam-related measurements includes the on-demand SSB.

12. The method in the second node according to claim 11, characterized in that: The reference signal used for the beam-related measurement includes a first reference signal, and the first reference signal is associated with the on-demand SSB.

13. The method in the second node according to claim 11 or 12, characterized in that: The transmitting of the on-demand SSB comprises transmitting a plurality of on-demand SSB bursts respectively within a plurality of on-demand transmission time windows; Among them, the durations of the multiple on-demand transmission time windows are the same; the multiple on-demand transmission time windows and the multiple on-demand SSB bursts are both periodic; and the first signaling indicates the period of the on-demand transmission time windows and the period of the on-demand SSB bursts.

14. The method in the second node according to any one of claims 11 to 13, characterized in that: The start time of the first time window is the start time of the transmission of the on-demand SSB, and the end time of the first time window is the end time of the transmission of the on-demand SSB.

15. The method in the second node according to any one of claims 14, characterized in that: include: In the first cell, beam failure recovery is triggered at a first moment.

16. The method in the second node according to claim 15, characterized in that: include: receiving a second signaling indicating that the beam failure is recovered; Among them, whether the second signaling indicates that the on-demand SSB depends on a second time window; the start time of the second time window is the later of the start time of the first time window and the first moment; the end time of the second time window is a second moment; the second moment is within the first time window; the generation of the second signaling is indicated at the second moment, or a scheduling request for the second signaling is triggered.

17. The method in the second node according to claim 16, characterized in that: When the second time window is less than the first evaluation requirement, the second signaling does not indicate the on-demand SSB; when the second time window is greater than or equal to the first evaluation requirement, whether the second signaling indicates the on-demand SSB also depends on the measurement results of the on-demand SSB in the second time window.

18. The method in the second node according to any one of claims 15 to 17, characterized in that: The triggering of the beam failure recovery depends on the measurement result of the reference signal adopted for the beam-related measurement within the first time window and before the first time instant; The first moment is within the first time window; and the time interval from the start time of the first time window to the first moment is greater than or equal to the second evaluation requirement.

19. The method in the second node according to claim 17 or 18, characterized in that: an evaluation requirement dependent on said period of said on-demand send time window or said period of said on-demand SSB burst; The evaluation requirement is the first evaluation requirement or the second evaluation requirement.

20. A base station, characterized in that: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the base station to perform the method according to any one of claims 11 to 19.

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