Method and apparatus in node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication. And the first node sends the first signal and the second signal and receives the first DCI. The first signal indicates a first RS resource; the first node is configured with only one RS resource set for beam failure detection, the only one RS resource set for beam failure detection is a first RS resource set, and triggering of the first signal depends on measurement for the first RS resource set; the second signal is indicated to adopt a first indicated TCI state or a second indicated TCI state, whether the first node adopts the same spatial filter as the first RS resource to send the second signal, depending on whether the second signal is indicated to adopt the first indicated TCI state or the second indicated TCI state. The method has the advantages that the beam failure detection and recovery performance and the uplink transmission performance are improved.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly to a scheme and apparatus related to beam failure detection in a wireless communication system. Background Art

[0002] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system and NR (New Radio) system. Additional spatial degrees of freedom are obtained by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment). Multiple antennas form beams pointing in a specific direction through beamforming to improve communication quality. The degrees of freedom provided by the multi-antenna system can be used to improve transmission reliability and / or throughput. Since the beams formed by multiple antennas are relatively narrow, the communicating parties need to align the beams to provide communication quality. Starting from NR (New Radio) R (Release) 15, 3GPP introduced a mechanism for beam failure detection and recovery to detect beam desynchronization as soon as possible and restore beam alignment, reducing the impact of beam desynchronization on system performance. Summary of the invention

[0003] Compared with 5G systems, 5G-Advanced and future 6G systems will adopt more new technologies and support more complex application scenarios, such as but not limited to asymmetric uplink and downlink deployment, more antenna ports, UE (User Equipment) initiated / event driven beam management, reconfigurable intelligent surface (RIS), more flexible duplex mode or full-duplex mode, subband non-overlapping full-duplex (SBFD) mode, and AI (Artificial Intelligence) / ML (Machine Learning). The applicant has found through research that under these new technologies, the demand for beam failure detection and recovery will be more flexible and diverse, and the current beam failure detection and recovery mechanism needs to be enhanced to meet the new needs. It should be noted that although the above description takes beam failure detection and recovery as an example, the present application is also applicable to other scenarios, including but not limited to other beam management and multi-antenna application scenarios. Although the above description uses new technologies such as asymmetric uplink and downlink deployment, more antenna ports, UE-initiated / event-driven beam management, RIS, SBFD and AI / LM as examples, the present application is also applicable to other new technologies. In addition, the use of a unified solution for different scenarios (including but not limited to beam failure detection and recovery, other beam management and multi-antenna applications, asymmetric uplink and downlink deployment, more antenna ports, UE-initiated / event-driven beam management, RIS, SBFD and AI / LM) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments in the first node of the present application and the features in the embodiments can be applied to the second node, and vice versa. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other.

[0004] As an example, the interpretation of the terms in the present application refers to the definitions of the TS38 series of specification protocols of 3GPP.

[0005] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0006] Sending a first signal, where the first signal indicates a first RS resource;

[0007] receiving a first DCI;

[0008] sending a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol;

[0009] Among them, the first node is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0010] As an embodiment, the problem to be solved by the present application includes: when the first node is configured with only one RS resource set for beam failure detection, and the second signal is indicated to adopt one of two indicated TCI states, whether the first node adopts the same spatial filter as the RS resource indicated by the first signal to send the second signal.

[0011] As an embodiment, the problem to be solved by the present application includes how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery in a scenario where the first node is configured with only one RS resource set for beam failure detection and supports two indicated TCI states for uplink transmission.

[0012] As an embodiment, the benefits of the above method include: optimizing system performance, especially uplink transmission performance.

[0013] As an embodiment, the benefits of the above method include: saving signaling overhead.

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

[0015] According to one aspect of the present application, it is characterized in that only when the second signal is instructed to adopt the TCI state indicated by the first signal, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0016] As an embodiment, the benefits of the above method include using a more accurate beam to send uplink signals, thereby improving uplink transmission performance.

[0017] As an embodiment, the benefits of the above method include that it is simple to implement.

[0018] According to one aspect of the present application, it is characterized by comprising:

[0019] receiving an RS in the first set of RS resources, a first reception quality set depending on measurements of the RS received in the first set of RS resources;

[0020] maintaining a first counter according to the first reception quality set;

[0021] If a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0022] As an embodiment, the benefits of the above method include: timely detection of beam desynchronization and improvement of system performance.

[0023] As an embodiment, the benefits of the above method include: good backward compatibility.

[0024] According to one aspect of the present application, it is characterized by comprising:

[0025] receiving an RS in a second set of RS resources, a second set of reception qualities depending on measurements of the RS received in the second set of RS resources;

[0026] The first node is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; and the second reception quality set is used to determine the first RS resource.

[0027] As an embodiment, the problem to be solved by the present application includes how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery in a scenario where the first node is configured with only one set of candidate RS resources for beam failure recovery and supports indicating two TCI states for uplink.

[0028] As an embodiment, the problem to be solved by the present application includes how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery in a scenario where the first node supports downlink transmission of a single TRP and uplink transmission of multiple TRPs.

[0029] According to one aspect of the present application, it is characterized in that when the second signal is transmitted in the PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state.

[0030] As an embodiment, the benefits of the above method include determining whether to follow the RS resources indicated by the signal for beam failure recovery to determine the spatial filter of the uplink signal according to the properties of the uplink signal, thereby further optimizing the uplink transmission performance.

[0031] According to one aspect of the present application, it is characterized in that the candidates for the first indicated TCI state only include the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state only include the TCI state configured by the second higher layer parameters.

[0032] As an embodiment, the benefits of the above method include further optimizing uplink transmission performance.

[0033] As an embodiment, the benefits of the above method include more optimized signaling design to meet the needs of the scenario where the first node supports downlink transmission of a single TRP and uplink transmission of multiple TRPs.

[0034] As an embodiment, the benefits of the above method include making full use of the functions of existing standards and simplifying signaling design.

[0035] According to one aspect of the present application, it is characterized in that the first node is a user equipment.

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

[0037] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0038] receiving a first signal, wherein the first signal indicates a first RS resource;

[0039] Sending a first DCI;

[0040] receiving a second signal, the second signal being no earlier than a first symbol, the first DCI being used to determine the first symbol;

[0041] Among them, the sender of the first signal is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0042] According to one aspect of the present application, it is characterized in that only when the second signal is instructed to adopt the first indicated TCI state, the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal.

[0043] According to one aspect of the present application, it is characterized by comprising:

[0044] Sending an RS in the first set of RS resources, a first reception quality set depending on a measurement of the RS sent in the first set of RS resources;

[0045] The sender of the first signal maintains a first counter based on the first reception quality set; if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0046] According to one aspect of the present application, it is characterized by comprising:

[0047] Sending RS in a second set of RS resources, a second set of reception qualities depending on measurements of the RS sent in the second set of RS resources;

[0048] The sender of the first signal is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; and the second reception quality set is used to determine the first RS resource.

[0049] According to one aspect of the present application, it is characterized in that when the second signal is transmitted in the PUSCH, whether the sender of the first signal uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state.

[0050] According to one aspect of the present application, it is characterized in that the candidates for the first indicated TCI state only include the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state only include the TCI state configured by the second higher layer parameters.

[0051] According to one aspect of the present application, it is characterized in that the second node is a base station.

[0052] According to one aspect of the present application, it is characterized in that the second node is a user equipment.

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

[0054] The present application discloses a first node used for wireless communication, characterized in that it includes:

[0055] A first transmitter sends a first signal, where the first signal indicates a first RS resource;

[0056] A first processor receives a first DCI;

[0057] The first transmitter sends a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol;

[0058] Among them, the first node is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0059] The present application discloses a second node used for wireless communication, characterized in that it includes:

[0060] A first receiver receives a first signal, wherein the first signal indicates a first RS resource;

[0061] A second transmitter sends a first DCI;

[0062] The first receiver receives a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol;

[0063] Among them, the sender of the first signal is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0064] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0065] Improved performance of beam failure detection and recovery.

[0066] Improves system performance, especially uplink transmission performance.

[0067] This saves signaling overhead.

[0068] Simple implementation simplifies system design.

[0069] Good backward compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0071] Figure 1 A flowchart showing a first signal, a first DCI and a second signal according to an embodiment of the present application is shown;

[0072] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0073] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0074] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0075] Figure 5 shows transmission between a first node and a second node according to an embodiment of the present application;

[0076] Figure 6 A schematic diagram showing that a second signal according to an embodiment of the present application is instructed to adopt a first indicated TCI state or is instructed to adopt a second indicated TCI state;

[0077] Figure 7 A schematic diagram showing that a second signal according to an embodiment of the present application is instructed to adopt a first indicated TCI state or is instructed to adopt a second indicated TCI state;

[0078] Figure 8 A schematic diagram showing that a second signal according to an embodiment of the present application is instructed to adopt a first indicated TCI state or is instructed to adopt a second indicated TCI state;

[0079] Fig. 9A schematic diagram showing that a second signal according to an embodiment of the present application is instructed to adopt a first indicated TCI state or is instructed to adopt a second indicated TCI state;

[0080] Fig.10 A schematic diagram showing whether a first node uses the same spatial filter as a first RS resource to send a second signal according to an embodiment of the present application depends on whether the second signal is instructed to use a first indicated TCI state or a second indicated TCI state;

[0081] Fig.11 A schematic diagram showing that a first reception quality set depends on measurements of RSs received in a first RS resource set according to an embodiment of the present application;

[0082] Fig.12 A schematic diagram showing a first counter and a first signal according to an embodiment of the present application is shown;

[0083] Fig.13 A schematic diagram showing a first counter and a first signal according to an embodiment of the present application is shown;

[0084] Fig.14 A schematic diagram showing that a second reception quality set according to an embodiment of the present application depends on measurements of RSs received in a second RS resource set;

[0085] Fig.15 A schematic diagram showing a second reception quality set being used to determine a first RS resource according to an embodiment of the present application;

[0086] Fig.16 A schematic diagram showing whether a first node uses the same spatial filter as a first RS resource to send a second signal according to an embodiment of the present application depends on whether the second signal is instructed to use a first indicated TCI state or a second indicated TCI state;

[0087] Fig.17 A schematic diagram showing whether a first node uses the same spatial filter as a first RS resource to send a second signal according to an embodiment of the present application;

[0088] Fig.18 A schematic diagram showing whether a first node uses the same spatial filter as a first RS resource to send a second signal according to an embodiment of the present application;

[0089] Fig.19 A schematic diagram showing a candidate for a first indicated TCI state and a candidate for a second indicated TCI state according to an embodiment of the present application;

[0090] Fig. 20 A schematic diagram showing whether a first node uses the same spatial filter as a first RS resource to send a second signal according to an embodiment of the present application;

[0091] Fig.21 A schematic diagram showing a TCI state indicated according to an embodiment of the present application;

[0092] Fig. 22 A structural block diagram of a processing device used in a first node according to an embodiment of the present application is shown;

[0093] Fig.23 A structural block diagram of a processing device used in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0094] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. Based on considerations such as performance, flexibility, complexity, overhead, and compatibility, those skilled in the art are motivated to flexibly combine the embodiments in different drawings without conflict, such as but not limited to the attached drawings. Figure 1 The embodiments and appendix Figure 5 -Attached Fig.23 The embodiments in Figure 5 The embodiments and appendix Figure 6 -Attached Fig.23 The embodiments in , etc.

[0095] Example 1

[0096] Embodiment 1 illustrates a flowchart of a first signal, a first DCI and a second signal according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the diagram 100, each box represents a step.

[0097] In embodiment 1, the first node sends a first signal in step 101; receives a first DCI in step 102; and sends a second signal in step 103. The first signal indicates a first RS resource; the first node is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is a first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0098] As an embodiment, the first signal includes a baseband signal.

[0099] As an embodiment, the first signal includes a wireless signal.

[0100] As an embodiment, the first signal includes a radio frequency signal.

[0101] As an embodiment, the first signal includes a first characteristic sequence.

[0102] As an embodiment, the first characteristic sequence includes one or more of a pseudo-random sequence, a Zadoff-Chu sequence or a low PAPR (Peak-to-Average Power Ratio) sequence.

[0103] As an embodiment, the first characteristic sequence includes a CP (Cyclic Prefix).

[0104] As a preferred embodiment, the first signal includes a RACH (Random Access Channel) preamble.

[0105] As an embodiment, the RACH preamble refers to a PRACH (Physical Random Access CHannel) preamble.

[0106] As an embodiment, the first signal includes a PRACH preamble.

[0107] As an embodiment, the first signal includes a contention-free RACH preamble.

[0108] As an embodiment, the first signal includes a contention-based RACH preamble.

[0109] As a preferred embodiment, the first signal includes a RACH preamble used for beam failure recovery (Beam FailureRecovery).

[0110] As an embodiment, the problems to be solved by the present application include: when the first node is configured with only one RS resource set for beam failure detection and supports two indicated TCI states for uplink transmission, how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery.

[0111] As an embodiment, the benefits of the above method include: optimizing the beam failure recovery mechanism and improving uplink transmission performance.

[0112] As an embodiment, the benefits of the above method include: good backward compatibility.

[0113] As an embodiment, the first signal is transmitted using RA (random access) resources for beam failure recovery.

[0114] As an embodiment, the RA resource includes a RACH occasion.

[0115] As an embodiment, the RA resource includes a RACH preamble.

[0116] As an embodiment, the RACH opportunity refers to a PRACH opportunity.

[0117] As an embodiment, the RA resource includes a PRACH occasion.

[0118] As an embodiment, the RA resources include a PRACH preamble.

[0119] As an embodiment, the RA resources include time-frequency resources.

[0120] As an embodiment, the physical layer channel occupied by the first signal includes PRACH.

[0121] As an embodiment, the physical layer channel occupied by the first signal is PRACH.

[0122] As an embodiment, the RA resources of the first signal are used by a target receiver of the first signal to determine the first RS resources.

[0123] As an embodiment, the target receiver of the first signal determines the first RS resource based on the RA resource of the first signal.

[0124] As an embodiment, the RA resource of the first signal indicates the first RS resource.

[0125] As an embodiment, the RA resource of the first signal indicates the first RS resource from the second RS resource set.

[0126] As an embodiment, the target receiver of the first signal determines the first RS resource from the second RS resource set based on the RA resource of the first signal.

[0127] As an embodiment, the RA resource of the first signal belongs to one RA resource group among M RA resource groups, the second RS resource set includes M RS resources, and M is a positive integer greater than 1; the M RA resource groups correspond to the M RS resources respectively; and the first RS resource is the RS resource corresponding to the RA resource group to which the RA resource of the first signal belongs.

[0128] As an embodiment, any RA resource in any RA resource group among the M RA resource groups includes at least one of a RACH opportunity or a RACH preamble.

[0129] As an embodiment, any RA resource in any RA resource group among the M RA resource groups includes one RACH opportunity and one RACH preamble.

[0130] As an embodiment, any RA resource in any RA resource group among the M RA resource groups includes a RACH preamble.

[0131] As an embodiment, there is one RA resource group among the M RA resource groups including multiple RACH opportunities and one RACH preamble.

[0132] As an embodiment, there is one RA resource group among the M RA resource groups, which includes multiple RACH opportunities and multiple RACH preambles.

[0133] As an embodiment, there is one RA resource group among the M RA resource groups that includes only one RACH preamble.

[0134] As an embodiment, there is one RA resource group among the M RA resource groups, which includes one RACH opportunity and one RACH preamble.

[0135] As an embodiment, the M RA resource groups are configured by higher layer parameters.

[0136] As an embodiment, the higher-layer parameters for configuring the M RA resource groups include a name including "candidateBeamRS".

[0137] As an embodiment, the higher-layer parameters for configuring the M RA resource groups include a name including "candidateBeamRSList".

[0138] As an embodiment, the M RA resource groups are configured by a higher layer parameter “candidateBeamRSList” and / or a higher layer parameter “candidateBeamRSListExt-v1610”.

[0139] As an embodiment, the higher-layer parameters for configuring the M RA resource groups include all or part of the information in the field including "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE (InformationElement).

[0140] As an embodiment, the M RA resource groups are configured by the "candidateBeamRSList" field and / or the "candidateBeamRSListExt-v1610" field of the BeamFailureRecoveryConfig IE.

[0141] As an embodiment, the M RA resource groups are configured by BeamFailureRecoveryConfig IE.

[0142] As an embodiment, the M RA resource groups are configured by BWP-UplinkDedicated IE.

[0143] As an embodiment, the PACH preamble included in the first signal is used by a target receiver of the first signal to determine the first RS resource.

[0144] As an embodiment, the target receiver of the first signal determines the first RS resource based on a PACH preamble included in the first signal.

[0145] As an embodiment, the PACH preamble included in the first signal indicates the first RS resource.

[0146] As an embodiment, the PACH preamble included in the first signal indicates the first RS resource from the second RS resource set.

[0147] As an embodiment, the target receiver of the first signal determines the first RS resource from the second RS resource set based on the PACH preamble included in the first signal.

[0148] As an embodiment, the RACH preamble included in the first signal is one of M RACH preambles, the second RS resource set includes M RS resources, and M is a positive integer greater than 1; the M RACH preambles correspond to the M RS resources respectively; and the first RS resource is the RS resource corresponding to the RACH preamble included in the first signal.

[0149] As an embodiment, the M RACH preambles are configured by higher layer parameters.

[0150] As an embodiment, the higher layer parameters for configuring the M RACH preambles include a name including "candidateBeamRS".

[0151] As an embodiment, the higher layer parameters for configuring the M RACH preambles include a name including "candidateBeamRSList".

[0152] As an embodiment, the M RACH preambles are configured by a higher layer parameter "candidateBeamRSList" and / or a higher layer parameter "candidateBeamRSListExt-v1610".

[0153] As an embodiment, the higher layer parameters for configuring the M RACH preambles include all or part of the information in the field including "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE (InformationElement).

[0154] As an embodiment, the M RACH preambles are configured by the "candidateBeamRSList" field and / or the "candidateBeamRSListExt-v1610" field of the BeamFailureRecoveryConfig IE.

[0155] As an embodiment, the M RACH preambles are configured by BeamFailureRecoveryConfig IE.

[0156] As an embodiment, the M RACH preambles are configured by BWP-UplinkDedicatedIE.

[0157] As an embodiment, the first signal includes MAC CE (Medium Access Control layer Control Element, media access control layer control element).

[0158] As an embodiment, the first signal includes a BFR (Beam Failure Recovery) MAC CE or a truncated BFR MAC CE.

[0159] As an embodiment, the first signal includes UCI (Uplink control information).

[0160] As an embodiment, the first signal includes LRR (Link Recovery Request).

[0161] As an embodiment, the first signal includes a first bit field, and the first bit field includes a positive integer number of bits; the first bit field indicates the first RS resource.

[0162] As an embodiment, the first bit field indicates the index of the first RS resource in the second RS resource set, and the index of the first RS resource in the second RS resource set is a non-negative integer less than the number of RS resources included in the second RS resource set.

[0163] As an embodiment, the physical layer channel occupied by the first signal includes PUSCH (Physical Uplink Shared Channel).

[0164] As an embodiment, the physical layer channel occupied by the first signal includes PUCCH (Physical Uplink Control Channel).

[0165] As an embodiment, the physical layer channels occupied by the first signal include PUSCH and PUCCH.

[0166] As an embodiment, the first RS resource includes a CSI-RS (Channel State Information Reference Signal) resource.

[0167] As an embodiment, the first RS resource includes a SS / PBCH (Synchronisation Signal / physical broadcast channel) block resource.

[0168] As an embodiment, the first RS resource is a CSI-RS resource.

[0169] As an embodiment, the first RS resource is an SS / PBCH block resource.

[0170] As an embodiment, the first RS resource is a CSI-RS resource or a SS / PBCH block resource.

[0171] As an embodiment, the RS resources include RS.

[0172] As an embodiment, the RS resources include RS ports.

[0173] As an embodiment, the RS resources include antenna ports.

[0174] As an embodiment, the CRC (Cyclicredundancy check) of the first DCI (Downlink Control Information) is scrambled by C (Cell)-RNTI (Radio Network Temporary Identifier).

[0175] As an embodiment, the CRC of the first DCI is scrambled by MCS (Modulation and Coding Scheme)-C-RNTI.

[0176] As an embodiment, the first DCI is received in a search space set indicated by a higher layer parameter including "recoverySearchSpaceId" in its name.

[0177] As an embodiment, the first signal includes a RACH preamble, and the first DCI is received in a search space set indicated by a higher layer parameter including "recoverySearchSpaceId" in its name.

[0178] As an embodiment, the first node receives the first DCI using the same quasi co-location parameters as the first RS resource in a search space set indicated by a higher layer parameter whose name includes "recoverySearchSpaceId".

[0179] As an embodiment, along with sending the first signal, the first node monitors PDCCH (Physical Downlink Control Channel) using the same quasi-co-location parameters as the first RS resource in a search space set indicated by a higher-layer parameter whose name includes "recoverySearchSpaceId".

[0180] As an embodiment, along with sending the first signal, the first node monitors the PDCCH and receives the first DCI using the same quasi-co-location parameters as the first RS resources in a search space set indicated by a higher-layer parameter whose name includes "recoverySearchSpaceId".

[0181] As an embodiment, the first signal is sent in time slot n, and the first node monitors PDCCH using the same quasi-co-location parameters as the first RS resource in a search space set indicated by a higher-layer parameter whose name includes "recoverySearchSpaceId" starting from time slot (n+first integer).

[0182] As a sub-embodiment of the above embodiment, the first integer is equal to 4.

[0183] As a sub-embodiment of the above embodiment, the first integer is equal to 2 to the power of μ multiplied by the second integer plus 4, where μ is the subcarrier spacing configuration (SubCarrier Spacing, SCS, configuration) of the first signal, and the second integer is a higher layer parameter configuration.

[0184] As a reference embodiment of the above sub-embodiment, the second integer is configured by a higher layer parameter including "kmac" in its name.

[0185] As an embodiment, the higher-layer parameter including "recoverySearchSpaceId" in the name refers to the higher-layer parameter "recoverySearchSpaceId".

[0186] As an embodiment, receiving the first DCI using the same quasi co-location parameters as the first RS resource means that the first RS resource and the DMRS (Demodulation Reference Signal) of the PDCCH carrying the first DCI are quasi co-located.

[0187] As an embodiment, the first signal is transmitted in the second PUSCH, and the PDCCH carrying the first DCI is the first PDCCH that schedules a PUSCH with the same HARQ process number (Hybrid automatic repeat request, HARQ, process number) and a toggled NDI (New Data Indicator) field value as the second PUSCH.

[0188] As an embodiment, the first symbol depends on the first DCI.

[0189] As an embodiment, the first symbol depends on the time domain resources occupied by the first DCI.

[0190] As an embodiment, the time domain resources occupied by the first DCI are used to determine the first symbol.

[0191] As an embodiment, the first symbol is the first symbol after 28 symbols from the last symbol of the PDCCH carrying the first DCI.

[0192] As an embodiment, the symbol includes an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0193] As an embodiment, the symbol includes a symbol obtained after the output of a transform precoding is subjected to OFDM symbol generation.

[0194] As an embodiment, the symbol includes a cyclic prefix.

[0195] As an embodiment, the symbol refers to an OFDM symbol.

[0196] As an embodiment, the second signal includes a baseband signal.

[0197] As an embodiment, the second signal includes a wireless signal.

[0198] As an embodiment, the second signal includes a radio frequency signal.

[0199] As an embodiment, the first symbol of the second signal is not earlier than the first symbol.

[0200] As an embodiment, the second signal is transmitted in PUSCH.

[0201] As an embodiment, the second signal includes part or all of the repetitions of the PUSCH transmission dynamically scheduled by an uplink grant (UL grant) in a DCI.

[0202] As an embodiment, the second signal includes part or all of the repetitions in the PUSCH transmission corresponding to the configured grant.

[0203] As an embodiment, the second signal includes part or all layers of PUSCH transmission dynamically scheduled by an uplink grant in a DCI.

[0204] As an embodiment, the second signal includes part or all layers of the PUSCH transmission granted by the corresponding configuration.

[0205] As an embodiment, the second signal is transmitted in PUCCH.

[0206] As an embodiment, the second signal includes part or all of the repetitions in the PUCCH transmission.

[0207] As an embodiment, the second signal includes an SRS (Sounding Reference Signal).

[0208] As an embodiment, the first RS resource set includes one or more RS resources.

[0209] As an embodiment, the first RS resource set includes only one RS resource.

[0210] As an embodiment, the first RS resource set includes multiple RS resources.

[0211] As an embodiment, the first RS resource set includes CSI-RS resources.

[0212] As an embodiment, the first RS resource set includes SS / PBCH block resources.

[0213] As an embodiment, any RS resource in the first RS resource set is a CSI-RS resource.

[0214] As an embodiment, any RS resource in the first RS resource set is a SS / PBCH block resource.

[0215] As an embodiment, any RS resource in the first RS resource set is a CSI-RS resource or a SS / PBCH block resource.

[0216] As an embodiment, the first RS resource set is configured by a higher layer parameter.

[0217] As an embodiment, the first RS resource set is configured by RRC (Radio Resource Control).

[0218] As an embodiment, the first RS resource set is configured by RRC IE (Information element).

[0219] As an embodiment, the first RS resource set is configured by a higher layer parameter "failureDetectionResourcesToAddModList".

[0220] As an embodiment, the first RS resource set is configured by a higher-layer parameter whose name includes "failureDetectionResourcesToAddModList".

[0221] As an embodiment, the first RS resource set is configured as a field of RadioLinkMonitoringConfig IE.

[0222] As an embodiment, the first RS resource set is configured by the "failureDetectionResourcesToAddModList" field of the RadioLinkMonitoringConfig IE.

[0223] As an embodiment, the first RS resource set is configured by a field including "failureDetectionResourcesToAddModList" in the name of the RadioLinkMonitoringConfig IE.

[0224] As an embodiment, the first RS resource set is configured by BWP-DownlinkDedicated IE.

[0225] As an embodiment, the first RS resource set is configured to the first BWP (BandwidthPart) of the first cell, and the first RS resource set is configured by the "failureDetectionResourcesToAddModList" field of the RadioLinkMonitoringConfig IE of the first BWP of the first cell.

[0226] As an embodiment, the first RS resource set is configured by a higher layer parameter whose name includes "failureDetectionSet".

[0227] As an embodiment, the first RS resource set is configured to a first BWP of a first cell, and the first node is configured with only one RS resource set for beam failure detection in the first BWP of the first cell.

[0228] As a sub-embodiment of the above embodiment, the only one RS resource set for beam failure detection configured by the first node in the first BWP of the first cell is the first RS resource set.

[0229] As a sub-embodiment of the above embodiment, the number of RS resource sets for beam failure detection configured by the first node in each downlink BWP of the first cell is equal to 1.

[0230] As a reference embodiment of the above sub-embodiment, in a downlink BWP of the first cell that is different from the first BWP, an RS resource set configured by the first node for beam failure detection is different from the first RS resource set.

[0231] As an embodiment, the problem to be solved by the present application includes how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery in a scenario where the first node supports downlink transmission of a single TRP (TransmitterReceiverPoint) and uplink transmission of multiple TRPs.

[0232] As an embodiment, the benefits of the above method include optimizing the beam failure recovery mechanism and uplink transmission performance.

[0233] As an embodiment, the only one RS resource set used for beam failure detection is configured by a higher layer parameter.

[0234] As an embodiment, the only one RS resource set used for beam failure detection is RRC configured.

[0235] As an embodiment, the only one RS resource set used for beam failure detection is configured by RRC IE.

[0236] As an embodiment, the only one RS resource set used for beam failure detection is configured by a higher layer parameter "failureDetectionResourcesToAddModList".

[0237] As an embodiment, the only one RS resource set used for beam failure detection is configured by a higher layer parameter whose name includes "failureDetectionResourcesToAddModList".

[0238] As an embodiment, the only one RS resource set used for beam failure detection is configured in a field of RadioLinkMonitoringConfig IE.

[0239] As an embodiment, the only one RS resource set used for beam failure detection is configured by the "failureDetectionResourcesToAddModList" field of the RadioLinkMonitoringConfig IE.

[0240] As an embodiment, the only one RS resource set used for beam failure detection is configured by a field including "failureDetectionResourcesToAddModList" in the name of the RadioLinkMonitoringConfig IE.

[0241] As an embodiment, the only one RS resource set used for beam failure detection is configured by BWP-DownlinkDedicated IE.

[0242] As an embodiment, the first RS resource set is configured in a first BWP of a first cell, and the only one RS resource set used for beam failure detection is configured in the first BWP of the first cell.

[0243] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and the only one RS resource set used for beam failure detection is configured by the "failureDetectionResourcesToAddModList" field of the RadioLinkMonitoringConfig IE of the first BWP of the first cell.

[0244] As an embodiment, the only one RS resource set used for beam failure detection is configured by a higher layer parameter whose name includes "failureDetectionSet".

[0245] As an embodiment, the first node is configured with only one CORESET (Control resourceset) pool.

[0246] As an embodiment, none of the CORESETs of the first node is configured with a coresetPoolIndex set to 1.

[0247] As an embodiment, any CORESET of the first node is not configured with coresetPoolIndex or is configured with coresetPoolIndex set to 0.

[0248] As an embodiment, the only one RS resource set used for beam failure detection includes RS resources indicated by the TCI state of the CORESET of the first node for monitoring the PDCCH.

[0249] As an embodiment, the first node is configured with only one CORESET pool in the first BWP of the first cell.

[0250] As an embodiment, any CORESET of the first node configured in the first BWP of the first cell is not configured with a coresetPoolIndex set to 1.

[0251] As an embodiment, any CORESET of the first node configured in the first BWP of the first cell is not configured with a coresetPoolIndex or is configured with a coresetPoolIndex set to 0.

[0252] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and the only one RS resource set for beam failure detection includes the RS resources indicated by the TCI status of the CORESET of the first node configured in the first BWP of the first cell for monitoring PDCCH.

[0253] As an embodiment, the first RS resource set is configured to the first BWP of the first cell.

[0254] As an embodiment, the meaning that the first node is configured with only one RS resource set for beam failure detection includes: the first node is not configured with a higher layer parameter whose name includes "candidateBeamRS-List2".

[0255] As an embodiment, the meaning that the first node is configured with only one RS resource set for beam failure detection includes: the first node is not configured with a higher-layer parameter "candidateBeamRS-List2-r17".

[0256] As an embodiment, the first node is configured with only one RS resource set for beam failure detection, which means that the first node is not configured with a higher-layer parameter whose name includes "failureDetectionSet1" or a higher-layer parameter whose name includes "failureDetectionSet2".

[0257] As an embodiment, the first node is configured with only one RS resource set for beam failure detection, which means that the first node is not configured with a higher-layer parameter "failureDetectionSet1-r17" or a higher-layer parameter "failureDetectionSet2-r17".

[0258] As an embodiment, the meaning that the first node is configured with only one RS resource set for beam failure detection includes: the first node is configured with only one CORESET pool.

[0259] As an embodiment, the first node is configured with only one RS resource set for beam failure detection, which means that any CORESET of the first node is not configured with a coresetPoolIndex set to 1.

[0260] As an embodiment, the first node is configured with only one RS resource set for beam failure detection, which means that any CORESET of the first node is not configured with coresetPoolIndex or is configured with a coresetPoolIndex set to 0.

[0261] As an embodiment, the indicated TCI (Transmission Configuration Indicator) state refers to: the TCI state indicated by the received DCI (Downlink Control Information).

[0262] As an embodiment, the indicated TCI state refers to: the TCI state indicated by the DCI received by the first node.

[0263] As an embodiment, the indicated TCI state refers to: the TCI state indicated by the received DCI, wherein the first node is configured with a higher layer parameter whose name includes "dl-OrJointTCI-StateList".

[0264] As an embodiment, the indicated TCI state refers to: the TCI state indicated by the DCI received by the first node, wherein the first node is configured with a higher layer parameter whose name includes "dl-OrJointTCI-StateList".

[0265] As an embodiment, the indicated TCI state refers to: the TCI state indicated by DCI format 1_1 or DCI format 1_2.

[0266] As an embodiment, the indicated TCI state refers to: the TCI state indicated by DCI format 1_1 or DCI format 1_2, wherein the first node is configured with a higher layer parameter whose name includes "dl-OrJointTCI-StateList".

[0267] As an embodiment, the indicated TCI state refers to: the TCI state indicated by the received DCI format 1_1 or DCI format1_2.

[0268] As an embodiment, the indicated TCI state refers to: the TCI state indicated by DCI format 1_1 or DCI format 1_2 received by the first node, wherein the first node is configured with a higher layer parameter including "dl-OrJointTCI-StateList" in its name

[0269] As an embodiment, the indicated TCI state refers to: the TCI state mapped by the codepoint of the DCI domain Transmission configuration indication of the received DCI.

[0270] As an embodiment, the indicated TCI state refers to: the TCI state mapped by the code point of the DCI domain Transmission configuration indication of the DCI received by the first node, wherein the first node is configured with a higher layer parameter whose name includes "dl-OrJointTCI-StateList".

[0271] As an embodiment, the Nth indicated TCI state refers to: the Nth indicated TCI state for uplink; the N is equal to one or two.

[0272] As an embodiment, the Nth indicated TCI state refers to: the Nth indicated joint TCI state or UL (uplink) TCI state; the N is equal to one or two.

[0273] As an embodiment, the Nth indicated TCI state refers to: the Nth TCI state for uplink indicated by DCI; and N is equal to one or two.

[0274] As an embodiment, the Nth indicated TCI state means: the DCI indicates the Nth joint TCI state or the Nth UL TCI state; and N is equal to one or two.

[0275] As an embodiment, the Nth indicated TCI state refers to: the Nth TCI state for uplink among multiple TCI states for uplink indicated in sequence by DCI; and N is equal to one or two.

[0276] As an embodiment, the Nth indicated TCI state refers to: the Nth joint TCI state or the Nth UL TCI state among multiple joint TCI states or multiple UL TCI states sequentially indicated by DCI; the N is equal to one or two.

[0277] As an embodiment, the Nth indicated TCI state refers to: the Nth TCI state for uplink mapped by the code point of the DCI domain Transmission configuration indication of the DCI; and N is equal to one or two.

[0278] As an embodiment, the Nth indicated TCI state refers to: the Nth jointTCI state or the Nth UL TCI state mapped by the code point of the DCI domain Transmission configuration indication of the DCI; and N is equal to one or two.

[0279] As an embodiment, the Nth indicated TCI state refers to: the Nth TCI state for uplink among multiple TCI states for uplink mapped in sequence by the code points of the DCI domain Transmission configuration indication of the DCI; and N is equal to one or two.

[0280] As an embodiment, the Nth indicated TCI state refers to: the Nth jointTCI state or the Nth UL TCI state among multiple joint TCI states or multiple UL TCI states mapped by the code point of the DCI domain Transmission configuration indication of the DCI; and N is equal to one or two.

[0281] As an embodiment, the TCI state for uplink refers to: a joint TCI state or a UL TCI state.

[0282] As an embodiment, the second signal is instructed to adopt the TCI state indicated by the first signal.

[0283] As an embodiment, the second signal is indicated to adopt a second indicated TCI state.

[0284] As an embodiment, the second signal is instructed to adopt the TCI state indicated by the first instruction, or the second signal is instructed to adopt the TCI state indicated by the second instruction.

[0285] As an embodiment, the TCI state includes the TCI state configured by the TCI-State IE.

[0286] As an embodiment, the TCI state includes the TCI state configured by the TCI-UL-State IE.

[0287] As an embodiment, the TCI state includes the TCI state configured by the TCI-State IE or the TCI state configured by the TCI-UL-State IE.

[0288] As an embodiment, the TCI state includes the TCI state configured by the TCI-State IE and the TCI state configured by the TCI-UL-State IE.

[0289] As an embodiment, the TCI state includes a TCI state configured by a higher layer parameter whose name includes "dl-OrJointTCI-StateList".

[0290] As an embodiment, the TCI state includes a TCI state configured by a higher layer parameter whose name includes "ul-TCI-StateList".

[0291] As an embodiment, the TCI state includes a TCI state configured by a higher layer parameter whose name includes “dl-OrJointTCI-StateList” and / or a TCI state configured by a higher layer parameter whose name includes “ul-TCI-StateList”.

[0292] As an embodiment, the TCI state includes a jointTCI state.

[0293] As an embodiment, the TCI state includes a UL TCI state.

[0294] As an embodiment, the TCI state includes a jointTCI state and / or a UL TCI state.

[0295] As an embodiment, the UL TCI state refers to the UL only TCI state.

[0296] As an embodiment, the second signal is transmitted in a dynamically scheduled PUSCH, and the scheduling DCI of the second signal indicates whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication.

[0297] As a sub-embodiment of the above embodiment, the second signal includes partial or full repeated transmission of the dynamically scheduled PUSCH.

[0298] As a sub-embodiment of the above embodiment, the second signal includes part or all layers of the dynamically scheduled PUSCH.

[0299] As an embodiment, the second signal is transmitted in a dynamically scheduled PUSCH, and the second signal is instructed to adopt the first indicated TCI state, which means that the value of the SRS resource setindicator in the DCI domain of the scheduling DCI of the second signal is equal to 0.

[0300] As an embodiment, the second signal is transmitted in a dynamically scheduled PUSCH, and the second signal is instructed to adopt a second indicated TCI state, which means that the value of the SRS resource setindicator in the DCI domain of the scheduling DCI of the second signal is equal to 1.

[0301] As an embodiment, the second signal is transmitted in the PUSCH corresponding to the configured grant (configuredgrant), and the third higher layer parameter configured in the configuration grant corresponding to the second signal indicates whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the third higher layer parameter includes "applyIndicatedTCI-State".

[0302] As a sub-embodiment of the above embodiment, the second signal includes partial or full repeated transmission of the PUSCH granted by the corresponding configuration.

[0303] As a sub-embodiment of the above embodiment, the second signal includes part or all layers of the PUSCH granted by the corresponding configuration.

[0304] As an embodiment, the second signal is transmitted in the PUSCH of the corresponding configuration grant, and the second signal is instructed to adopt the first indicated TCI state, which means that: the configuration grant corresponding to the second signal is configured with a third higher layer parameter indicating "first"; the name of the third higher layer parameter includes "applyIndicatedTCI-State".

[0305] As an embodiment, the second signal is transmitted in the PUSCH of the corresponding configuration grant, and the second signal is instructed to adopt the second indicated TCI state, which means that: the configuration grant corresponding to the second signal is configured with a third higher layer parameter indicating "second"; the name of the third higher layer parameter includes "applyIndicatedTCI-State".

[0306] As an embodiment, the second signal is transmitted in the PUCCH, and the fourth higher layer parameter configured by the PUCCH resource carrying the second signal indicates whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the fourth higher layer parameter includes "applyIndicatedTCI-State".

[0307] As a sub-embodiment of the above embodiment, the second signal includes repeated transmission of all or part of the PUCCH.

[0308] As an embodiment, the second signal is transmitted in the PUCCH, and the second signal is instructed to adopt the first indicated TCI state, which means that: the PUCCH resource carrying the second signal is configured with a fourth higher layer parameter indicating "first"; and the name of the fourth higher layer parameter includes "applyIndicatedTCI-State".

[0309] As an embodiment, the second signal is transmitted in the PUCCH, and the second signal is instructed to adopt the second indicated TCI state, which means that: the PUCCH resource carrying the second signal is configured with a fourth higher layer parameter indicating "second"; the name of the fourth higher layer parameter includes "applyIndicatedTCI-State".

[0310] As an embodiment, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, and the fifth higher layer parameter configured by the third SRS resource set indicates whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the fifth higher layer parameter includes "applyIndicatedTCI-State".

[0311] As an embodiment, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, and the second signal is instructed to adopt the first indicated TCI state, which means: the fifth higher layer parameter configured with the third SRS resource set indicates "first"; and the name of the fifth higher layer parameter includes "applyIndicatedTCI-State".

[0312] As an embodiment, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, and the second signal is instructed to adopt the second indicated TCI state, which means: the fifth higher layer parameter configured by the third SRS resource set indicates "second"; and the name of the fifth higher layer parameter includes "applyIndicatedTCI-State".

[0313] As an embodiment, when the second signal is instructed to adopt the TCI state indicated by the first signal, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0314] As an embodiment, when the second signal is instructed to adopt the second indicated TCI state, the first node does not adopt the same spatial filter as the first RS resource to send the second signal.

[0315] Example 2

[0316] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0317] Attached Figure 2The network architecture 200 is described. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture adopted by 3GPP in the future evolution; the network architecture 200 may be called 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 may be called 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220 and Internet service 230. The network architecture 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet switching services, but it will be readily understood by those skilled in the art that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit switching services. The RAN includes a node 203. The RAN may also include other nodes 204. The node 203 provides user and control plane protocol terminations toward the UE 201. The node 203 may be connected to the other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. The node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (transmitting receiving node) or some other suitable terminology. The core network 210 is 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is 6GC; the node 203 provides an access point to the core network 210 for the UE 201.Examples of UE201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, 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, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212 and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is a control node that processes signaling between UE201 and the core network 210. Generally, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, and S-GW / UPF212 itself is connected to P-GW / UPF213. 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, which may specifically include the Internet, Intranet, IMS (IP Multimedia Subsystem) and Packet switching services.

[0318] As an embodiment, the first node includes the UE201.

[0319] As an embodiment, the second node includes the node 203.

[0320] As an embodiment, the wireless link between the UE 201 and the node 203 includes a cellular network link.

[0321] As an embodiment, the sender of the first signal includes the UE201.

[0322] As an embodiment, the receiver of the first signal includes the node 203.

[0323] As an embodiment, the sender of the first DCI includes the node 203.

[0324] As an embodiment, the recipient of the first DCI includes the UE201.

[0325] As an embodiment, the sender of the second signal includes the UE201.

[0326] As an embodiment, the receiver of the second signal includes the node 203.

[0327] Example 3

[0328] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0329] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of the control plane 300 between a first communication node device (UE, gNB or RSU in V2X) and a second communication node device (gNB, UE or RSU in V2X), or between two UEs is shown with three layers: Layer 1, Layer 2 and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture used for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0330] As an example, Figure 3 The wireless protocol architecture is applicable to the first node.

[0331] As an example, Figure 3 The wireless protocol architecture is applicable to the second node.

[0332] As an embodiment, the higher layer in the present application refers to a layer above the physical layer.

[0333] As an embodiment, the first signal is generated by the PHY301 or the PHY351.

[0334] As an embodiment, the first signal is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0335] As an embodiment, the first DCI is generated by the PHY301 or the PHY351.

[0336] As an embodiment, the second signal is generated by the PHY301 or the PHY351.

[0337] Example 4

[0338] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached Figure 4 Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0339] The first communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 and an antenna 420 .

[0340] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0341] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, the upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In DL (DownLink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more parallel The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to different antennas 420.

[0342] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using confirmation (ACK) and / or negative confirmation (NACK) protocols to support HARQ operations.

[0343] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream, and then provides it to the antenna 452.

[0344] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0345] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 device at least: sends the first signal; receives the first DCI; sends the second signal. The first signal indicates a first RS resource; the second signal is not earlier than the first symbol, and the first DCI is used to determine the first symbol; the second communication device 450 is configured with only one RS resource set for beam failure detection, and the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state, and whether the second communication device 450 uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0346] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending the first signal; receiving the first DCI; and sending the second signal.

[0347] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 device at least: receives the first signal, sends the first DCI; receives the second signal. The first signal indicates a first RS resource; the second signal is not earlier than the first symbol, and the first DCI is used to determine the first symbol; the sender of the first signal is configured with only one RS resource set for beam failure detection, and the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0348] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving the first signal, sending the first DCI; and receiving the second signal.

[0349] As an embodiment, the first node in the present application includes the second communication device 450.

[0350] As an embodiment, the second node in the present application includes the first communication device 410.

[0351] As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller / processor 475, and the memory 476} is used to receive the first signal; and at least one of {the antenna 452, the transmitter 454, the transmitting processor 468, the multi-antenna transmitting processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send the first signal.

[0352] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first DCI; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the first DCI.

[0353] As an embodiment, at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller / processor 475, and the memory 476} is used to receive the second signal; and at least one of {the antenna 452, the transmitter 454, the transmitting processor 468, the multi-antenna transmitting processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send the second signal.

[0354] Example 5

[0355] Embodiment 5 illustrates a flow chart of transmission according to an embodiment of the present application; Figure 5 As shown in the attached Figure 5In the embodiment, the second node U1 and the first node U2 are communication nodes transmitted via the air interface. Figure 5 In the process, the steps in box F51 to box F54 are respectively optional.

[0356] For the second node U1, in step S5101, RS is sent in the first RS resource set; in step S5102, RS is sent in the second RS resource set; in step S511, a first signal is received; in step S512, a first DCI is sent; in step S513, a second signal is received; in step S5103, the other (K-1) repetitions of the K repetitions of the first bit block except the second signal are received; in step S5104, the other (V-1) layers of the V layers except the second signal are received.

[0357] For the first node U2, in step S5201, RS is received in the first RS resource set; in step S5202, RS is received in the second RS resource set; in step S521, a first signal is sent; in step S522, a first DCI is received; in step S523, a second signal is sent; in step S5203, the other (K-1) repetitions of the K repetitions of the first bit block except the second signal are sent; in step S5204, the other (V-1) layers of the V layers except the second signal are sent.

[0358] In Example 5, the first signal indicates a first RS resource; the second signal is no earlier than the first symbol, and the first DCI is used by the first node U2 to determine the first symbol; the first node U2 is configured with only one RS resource set for beam failure detection, and the only RS resource set for beam failure detection is a first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node U2 uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0359] As an embodiment, the first node U2 is the first node in this application.

[0360] As an embodiment, the second node U1 is the second node in this application.

[0361] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a base station device and a user equipment.

[0362] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a relay node device and a user equipment.

[0363] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between user equipments.

[0364] As an embodiment, the second node U1 is a base station maintaining a service cell of the first node U2.

[0365] As an embodiment, the first signal is transmitted in PRACH.

[0366] As an embodiment, the first signal is transmitted in PUSCH.

[0367] As an embodiment, a part of the first signal is transmitted in the PUCCH, and another part is transmitted in the PUSCH.

[0368] As an embodiment, a part of the first signal is transmitted in PRACH, and another part is transmitted in PUSCH.

[0369] As an embodiment, the first DCI is transmitted in PDCCH.

[0370] As an embodiment, the second signal is transmitted in PUSCH.

[0371] As an embodiment, the second signal is transmitted in PUCCH.

[0372] As an embodiment, the second signal includes SRS.

[0373] As an example, Figure 5 The steps in box F51 exist; the first reception quality set depends on the measurement of the RS received in the first RS resource set; the first node U2 maintains a first counter based on the first reception quality set; wherein, if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0374] As an embodiment, the first node receives RS in each RS resource in the first RS resource set.

[0375] As an embodiment, the first node receives RS in at least one RS resource in the first RS resource set.

[0376] As an example, Figure 5The steps in box F52 exist; the second reception quality set depends on the measurement of the RS received in the second RS resource set; wherein the first node U2 is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; the second reception quality set is used by the first node U2 to determine the first RS resource.

[0377] As an embodiment, the first node receives RS in each RS resource in the second RS resource set.

[0378] As an embodiment, the first node receives RS in at least one RS resource in the second RS resource set.

[0379] As an example, Figure 5 The steps in boxes F51 and F52 in are present.

[0380] As an embodiment, the reception of the RS in at least one RS resource in the first RS resource set is earlier than the reception of the RS in at least one RS resource in the second RS resource set.

[0381] As an embodiment, the reception of the RS in at least one RS resource in the first RS resource set is later than the reception of the RS in at least one RS resource in the second RS resource set.

[0382] As an example, Figure 5 The step in box F53 in the above is present, the method in the first node used for wireless communication includes:

[0383] Sending other (K-1) repetitions of the K repetitions of the first bit block except the second signal, where K is a positive integer greater than 1;

[0384] The second signal carries the first bit block, and the second signal is a repeated transmission among the K repeated transmissions.

[0385] As an embodiment, the first bit block is a TB (Transport block).

[0386] As an embodiment, the first bit block includes a TB.

[0387] As an embodiment, the K repeated transmissions are respectively located in K consecutive time slots.

[0388] As an embodiment, the K repeated transmissions are K nominal repeated transmissions.

[0389] As an embodiment, the K repeated transmissions are scheduled by the same DCI.

[0390] As an embodiment, the K repeated transmissions correspond to the same HARQ process.

[0391] As an example, Figure 5 The step in box F54 is present, the method in the first node used for wireless communication comprises:

[0392] Sending other (V-1) layers of the V layers except the second signal, where V is a positive integer greater than 1;

[0393] The second signal is one of the V layers.

[0394] As an embodiment, the V layers are scheduled by the same DCI.

[0395] As an embodiment, the V layers are V layers of the same PUSCH.

[0396] As an embodiment, the V layers are V layers of PUSCH scheduled by the same DCI.

[0397] As an embodiment, the V layers carry the same TB.

[0398] As an embodiment, the V layers correspond to the same HARQ process.

[0399] As an embodiment, the layer refers to a MIMO (Multiple Input Multiple Output) layer.

[0400] As an embodiment, the layer refers to a transmission layer.

[0401] As an example, Figure 5 The steps in box F53 exist, but the steps in box F54 do not exist.

[0402] As an example, Figure 5 The step in box F53 does not exist, but the step in box F54 does exist.

[0403] As an embodiment, only when the second signal is instructed to adopt the first indicated TCI state, the first node U2 uses the same spatial filter as the first RS resource to send the second signal.

[0404] As an embodiment, when the second signal is transmitted on PUSCH, whether the first node U2 uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0405] As an embodiment, the candidates for the first indicated TCI state only include the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state only include the TCI state configured by the second higher layer parameters.

[0406] Example 6

[0407] Embodiment 6 illustrates a schematic diagram of a second signal being instructed to adopt a first indicated TCI state or being instructed to adopt a second indicated TCI state according to an embodiment of the present application; Figure 6 In Embodiment 6, the second signal is transmitted in the PUSCH, the second DCI indicates scheduling information of the second signal, and the second DCI indicates whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication.

[0408] As an embodiment, the scheduling information of the second signal includes one or more of time domain resources, frequency domain resources, MCS (Modulation and coding scheme), DMRS port, HARQ (Hybrid Automatic Repeat request) process number, RV (Redundancy Version) or NDI (New Data Indicator).

[0409] As an embodiment, the second DCI schedules the second signal.

[0410] As an embodiment, the second DCI is a scheduling DCI of the second signal.

[0411] As an embodiment, the second DCI schedules a PUSCH carrying the second signal.

[0412] As an embodiment, the second signal is transmitted in a PUSCH dynamically scheduled by the uplink grant in the second DCI.

[0413] As an embodiment, the PUSCH transmission dynamically scheduled by the uplink grant in the second DCI includes the second signal.

[0414] As an embodiment, the PUSCH carrying the second signal is a PUSCH transmission corresponding to a configuration grant type 2 (Type 2), and the second DCI activates the configuration grant corresponding to the second signal.

[0415] As an embodiment, the PUSCH carrying the second signal is a PUSCH transmission corresponding to configuration grant type 2, and the second DCI activates the configuration grant corresponding to the PUSCH carrying the second signal.

[0416] As an embodiment, the second signal is transmitted in a PUSCH of a configuration grant type 2 corresponding to the second DCI activation.

[0417] As an embodiment, the second DCI is DCI format 0_1 ​​or DCI format 0_2.

[0418] As an embodiment, the second DCI is one of DCI format 0_0, DCI format 0_1 ​​or DCI format0_2.

[0419] As an embodiment, whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication depends on the second DCI.

[0420] As an embodiment, whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication depends on the DCI domain SRS resource set indicator of the second DCI.

[0421] As an embodiment, the second DCI indicates whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication.

[0422] As an embodiment, the DCI domain SRS resource set indicator of the second DCI indicates whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication.

[0423] As an embodiment, when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 0, the second signal adopts the TCI state indicated by the first signal.

[0424] As an embodiment, when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 1, the second signal adopts the TCI state of the second indication.

[0425] As an embodiment, the second signal carries a first bit block, and the second signal is a repeated transmission among K repeated transmissions of the first bit block, where K is a positive integer greater than 1; when the value of the SRSresource set indicator in the DCI domain of the second DCI is equal to 2 or 3, whether the second signal adopts the TCI state indicated by the first or the TCI state indicated by the second depends on which repeated transmission the second signal is among the K repeated transmissions.

[0426] As an embodiment, the K repeated transmissions are arranged sequentially in the time domain.

[0427] As an embodiment, the second DCI schedules the K repeated transmissions.

[0428] As an embodiment, the second DCI dynamically schedules the K repeated transmissions.

[0429] As an embodiment, the K repeated transmissions are transmitted in a PUSCH corresponding to a configuration grant type 2, and the second DCI activates the configuration grant corresponding to the K repeated transmissions.

[0430] As an embodiment, the K is equal to 2; when the value of the SRS resource setindicator in the DCI domain of the second DCI is equal to 2, if the second signal is the first repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the first indication; if the second signal is the second repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the second indication.

[0431] As an embodiment, K is equal to 2; when the value of the SRS resource setindicator in the DCI domain of the second DCI is equal to 3, if the second signal is the first repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the second signal; if the second signal is the second repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the first signal.

[0432] As an embodiment, K is greater than 2, and "cyclicMapping" is enabled; when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 2, if the second signal is an odd-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the first indication; if the second signal is an even-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the second indication.

[0433] As an embodiment, K is greater than 2, "sequentialMapping" is enabled, and the second signal is the i-th repeated transmission among the K repeated transmissions, and i is a positive integer not greater than K; when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 2, if the value obtained by subtracting 1 from i and taking the value modulo 4 is less than 2, the second signal adopts the TCI state indicated by the first signal, and if the value obtained by subtracting 1 from i and taking the value modulo 4 is not less than 2, the second signal adopts the TCI state indicated by the second signal.

[0434] As an embodiment, K is greater than 2, and "cyclicMapping" is enabled; when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 3, if the second signal is an odd-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the second signal; if the second signal is an even-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the first signal.

[0435] As an embodiment, K is greater than 2, "sequentialMapping" is enabled, and the second signal is the i-th repeated transmission among the K repeated transmissions, and i is a positive integer not greater than K; when the value of the SRS resource set indicator in the DCI domain of the second DCI is equal to 3, if the value obtained by subtracting 1 from i and taking the value modulo 4 is less than 2, the second signal adopts the TCI state indicated by the second signal, and if the value obtained by subtracting 1 from i and taking the value modulo 4 is not less than 2, the second signal adopts the TCI state indicated by the first signal.

[0436] As an embodiment, the second signal is transmitted in a dynamically scheduled PUSCH, and “cyclicMapping” is enabled, which means: “cyclicMapping” is enabled in the PUSCH-Config IE.

[0437] As an embodiment, the second signal is transmitted in a dynamically scheduled PUSCH, and “sequentialMapping” is enabled, which means: “sequentialMapping” is enabled in the PUSCH-Config IE.

[0438] As an embodiment, the second signal is transmitted in a PUSCH corresponding to a configuration grant, and “cyclicMapping” is enabled, which means that “cyclicMapping” is enabled in the ConfiguredGrantConfig IE of the configuration grant corresponding to the second signal.

[0439] As an embodiment, the second signal is transmitted in the PUSCH of the configuration grant corresponding to the second signal, and "sequentialMapping" is enabled, which means: "sequentialMapping" is enabled in the ConfiguredGrantConfig IE of the configuration grant corresponding to the second signal.

[0440] As an embodiment, the value of the DCI domain SRS resource set indicator of the second DCI is equal to 0, 1, 2 and 3, respectively, which means that the second DCI indicates the codepoints "00", "01", "10" and "11" for the DCI domain SRS resource set indicator.

[0441] As an embodiment, the second signal is one layer among V layers, and V is a positive integer greater than 1; when the value of the DCI domain SRS resource set indicator of the second DCI is equal to 2, whether the second signal adopts the TCI state indicated by the first or the TCI state indicated by the second depends on which layer among the V layers the second signal is.

[0442] As an embodiment, the V layers all carry the first bit block.

[0443] As an embodiment, the second DCI schedules the V layers.

[0444] As an embodiment, the second DCI dynamically schedules the V layers.

[0445] As an embodiment, the V layers are transmitted in a PUSCH corresponding to configuration grant type 2, and the second DCI activates the configuration grant corresponding to the V layers.

[0446] As an embodiment, the second DCI indicates a first number of layers and a second number of layers, and V is equal to the sum of the first number of layers and the second number of layers; the second signal is the jth layer among the V layers, and j is a positive integer not greater than V; when the value of the DCI domain SRS resource set indicator of the second DCI is equal to 2, if j is not greater than the first number of layers, the second signal adopts the TCI state indicated by the first indication, and if j is greater than the first number of layers, the second signal adopts the TCI state indicated by the second indication.

[0447] As a sub-embodiment of the above embodiment, the first field of the second DCI indicates the first layer number, the second field of the second DCI indicates the second layer number, and the first field is located before the second field in the second DCI.

[0448] As a sub-embodiment of the above embodiment, the DCI domain SRS resource indicator of the second DCI indicates the first number of layers, and the DCI domain Second SRS resource indicator of the second DCI indicates the second number of layers.

[0449] As a sub-embodiment of the above embodiment, the DCI field Precoding information and number of layers of the second DCI indicates the first number of layers, and the DCI field Second Precoding information of the second DCI indicates the second number of layers.

[0450] As a sub-embodiment of the above embodiment, the first number of layers and the second number of layers are respectively positive integers.

[0451] As a sub-embodiment of the above embodiment, the first number of layers and the second number of layers are positive integers not greater than 2 respectively.

[0452] As an embodiment, if the second DCI is DCI format 0_0, the second signal adopts the TCI state indicated by the first signal.

[0453] As an embodiment, if the second DCI is DCI format 0_1 ​​or DCI format 0_2, whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication depends on the DCI domain SRS resource set indicator of the second DCI.

[0454] As an embodiment, if the second DCI is DCI format 0_1 ​​or DCI format 0_2, the DCI domain SRS resource set indicator of the second DCI indicates whether the second signal adopts the TCI state indicated by the first indication or the TCI state indicated by the second indication.

[0455] As an embodiment, the first node is configured with two SRS resource sets by a higher-layer parameter whose name includes "srs-ResourceSetToAddModList", and the higher-layer parameters "usage" corresponding to the two SRS resource sets are both set to "nonCodeBook" or both set to "codebook", the first SRS resource set is the SRS resource set with a lower corresponding srs-ResourceSetId among the two SRS resource sets, and the second SRS resource set is the SRS resource set with a higher corresponding srs-ResourceSetId among the two SRS resource sets; when the second signal is instructed to adopt the TCI state of the first indication, the second signal is associated with the first SRS resource set; when the second signal is instructed to adopt the TCI state of the second indication, the second signal is associated with the second SRS resource set.

[0456] As an embodiment, the association between the second signal and an SRS resource set means that: the second signal is sent by the same antenna port as the SRS port of one or more SRS resources in the one SRS resource set; and the one SRS resource set is the first SRS resource set or the second SRS resource set.

[0457] As an embodiment, the association between the second signal and an SRS resource set means that: the first node sends the second signal using the same antenna port as the SRS port of one or more SRS resources in the one SRS resource set; and the one SRS resource set is the first SRS resource set or the second SRS resource set.

[0458] As an embodiment, the association between the second signal and an SRS resource set means that: the first node uses the same spatial filter to send SRS and send the second signal in the one SRS resource set; the one SRS resource set is the first SRS resource set or the second SRS resource set.

[0459] Example 7

[0460] Embodiment 7 illustrates a schematic diagram of a second signal being instructed to adopt a first indicated TCI state or being instructed to adopt a second indicated TCI state according to an embodiment of the present application; Figure 7 As shown. In Embodiment 7, the second signal is transmitted in the first PUSCH, the first PUSCH is a PUSCH transmission corresponding to the configuration grant, and the third higher-layer parameter configured by the configuration grant corresponding to the first PUSCH indicates whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the third higher-layer parameter includes "applyIndicatedTCI-State".

[0461] As an embodiment, the first PUSCH is a PUSCH transmission corresponding to the configuration grant type 1 (Type 1).

[0462] As an embodiment, when the third higher layer parameter indicates "first", the second signal adopts the TCI state indicated by the first one.

[0463] As an embodiment, when the third higher layer parameter indicates "second", the second signal adopts the TCI state indicated by the second signal.

[0464] As an embodiment, the second signal carries a first bit block, and the second signal is a repeated transmission among K repeated transmissions of the first bit block, where K is a positive integer greater than 1; when the third higher layer parameter indicates "both", whether the second signal adopts the TCI state indicated by the first or the TCI state indicated by the second depends on which repeated transmission the second signal is among the K repeated transmissions.

[0465] As an embodiment, the K repeated transmissions are arranged sequentially in the time domain.

[0466] As an embodiment, K is equal to 2; when the third higher layer parameter indicates "both", if the second signal is the first repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the first signal; if the second signal is the second repeated transmission among the K repeated transmissions, the second signal adopts the TCI state indicated by the second signal.

[0467] As an embodiment, K is greater than 2, and "cyclicMapping" is enabled; when the third higher layer parameter indicates "both", if the second signal is an odd-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the first signal, and if the second signal is an even-numbered repetition transmission among the K repetition transmissions, the second signal adopts the TCI state indicated by the second signal.

[0468] As an embodiment, K is greater than 2, "sequentialMapping" is enabled, and the second signal is the i-th repeated transmission among the K repeated transmissions, and i is a positive integer not greater than K; when the third higher layer parameter indicates "both", if the value obtained by subtracting 1 from i and taking the value modulo 4 is less than 2, the second signal adopts the TCI state indicated by the first signal, and if the value obtained by subtracting 1 from i and taking the value modulo 4 is not less than 2, the second signal adopts the TCI state indicated by the second signal.

[0469] As an embodiment, the third higher layer parameter is configured in the ConfiguredGrantConfig IE of the configuration grant corresponding to the first PUSCH.

[0470] As an embodiment, the third higher layer parameter includes a field including "applyIndicatedTCI-State" in the name of the ConfiguredGrantConfig IE of the configuration grant corresponding to the first PUSCH.

[0471] As an embodiment, the third higher layer parameter includes the field "applyIndicatedTCI-State-r18" in the ConfiguredGrantConfig IE of the configuration grant corresponding to the first PUSCH.

[0472] Example 8

[0473] Embodiment 8 illustrates a schematic diagram of a second signal being instructed to adopt a first indicated TCI state or being instructed to adopt a second indicated TCI state according to an embodiment of the present application; Figure 8 In Embodiment 8, the second signal is transmitted in the first PUCCH resource, and the fourth higher layer parameter configured by the first PUCCH resource indicates whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the fourth higher layer parameter includes "applyIndicatedTCI-State".

[0474] As an embodiment, the first PUCCH resource is identified by a PUCCH-ResourceId.

[0475] As an embodiment, when the fourth higher layer parameter indicates "first", the second signal adopts the TCI state indicated by the first one.

[0476] As an embodiment, when the fourth higher layer parameter indicates "second", the second signal adopts the TCI state indicated by the second.

[0477] As an embodiment, when the fourth higher layer parameter indicates "both", the second signal adopts the TCI state of the first indication and the TCI state of the second indication.

[0478] As an embodiment, the fourth higher layer parameter is configured in PUCCH-ResourceExt-v1610 corresponding to the first PUCCH resource.

[0479] As an embodiment, the fourth higher layer parameter includes a field whose name includes "applyIndicatedTCI-State" in PUCCH-ResourceExt-v1610 corresponding to the first PUCCH resource.

[0480] As an embodiment, the fourth higher layer parameter includes the field "applyIndicatedTCI-State-r18" in PUCCH-ResourceExt-v1610 corresponding to the first PUCCH resource.

[0481] Example 9

[0482] Embodiment 9 illustrates a schematic diagram of a second signal being instructed to adopt a first indicated TCI state or being instructed to adopt a second indicated TCI state according to an embodiment of the present application; Fig. 9 In Embodiment 9, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, the third SRS resource set is configured with a fifth higher layer parameter indicating whether the second signal adopts the first indicated TCI state or the second indicated TCI state; the name of the fifth higher layer parameter includes "applyIndicatedTCI-State".

[0483] As an embodiment, the third SRS resource set is identified by an SRS-ResourceSetId.

[0484] As an embodiment, when the fifth higher layer parameter indicates "first", the second signal adopts the TCI state indicated by the first one.

[0485] As an embodiment, when the fifth higher layer parameter indicates "second", the second signal adopts the second indicated TCI state.

[0486] As an embodiment, the fifth higher layer parameter is configured in the SRS-ResourceSet corresponding to the third SRS resource set.

[0487] As an embodiment, the fifth higher layer parameter includes a field whose name includes "applyIndicatedTCI-State" in the SRS-ResourceSet corresponding to the third SRS resource set.

[0488] As an embodiment, the fifth higher layer parameter includes the field "applyIndicatedTCI-State-r18" in the SRS-ResourceSet corresponding to the third SRS resource set.

[0489] Example 10

[0490] Embodiment 10 illustrates a schematic diagram of whether the first node uses the same spatial filter as the first RS resource to send the second signal according to an embodiment of the present application, depending on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state; as shown in the attached Fig.10 In Embodiment 10, when the second signal is instructed to adopt the TCI state indicated by the first indication, the first node uses the same spatial filter as the first RS resource to send the second signal; when the second signal is instructed to adopt the TCI state indicated by the second indication, the first node uses the same spatial filter as the second RS resource to send the second signal; the second RS resource is different from the first RS resource.

[0491] As an embodiment, the second RS resource is an RS resource of the second TCI state indication of the most recent DCI indication received by the first node.

[0492] As an embodiment, the second RS resource is an RS resource whose QCL (Quasi Co-Location) type corresponding to the second TCI state indication of the most recent DCI indication received by the first node is set to Type D.

[0493] As an embodiment, the second RS resource is an RS resource of the second TCI state indication of the most recent DCI indication received by the first node before sending the first signal.

[0494] As an embodiment, the second RS resource is an RS resource in which the QCL (Quasi Co-Location) type corresponding to the second TCI state indication of the most recent DCI indication received by the first node before sending the first signal is set to Type D.

[0495] As an embodiment, the second RS resource is an RS resource for the second uplink TCI state indication indicated by a most recent DCI received by the first node.

[0496] As an embodiment, the second RS resource is an RS resource whose corresponding QCL type of the second TCI state indication for uplink indicated by the most recent DCI received by the first node is set to Type D.

[0497] As an embodiment, the second RS resource is an RS resource for the second uplink TCI state indication indicated by a most recent DCI received by the first node before sending the first signal.

[0498] As an embodiment, the second RS resource is an RS resource in which the corresponding QCL type of the second TCI state indication for uplink indicated by the most recent DCI received by the first node before sending the first signal is set to Type D.

[0499] As an embodiment, the most recent DCI refers to: the most recent DCI including the DCI field Transmission configuration indication.

[0500] As an embodiment, the most recent DCI refers to: the most recent DCI format 1_1 received in a CORESET in which "tci-PresentInDCI" is set to "enabled", or the most recent DCI format 1_2 received in a CORESET configured with "tci-PresentInDCI-1-2-r16".

[0501] As a preferred embodiment, the second RS resource is an SRS resource.

[0502] As an embodiment, the second RS resource is a CSI-RS resource.

[0503] As an embodiment, the second RS resource is an SS / PBCH resource.

[0504] As an embodiment, the first node uses the same spatial filter as the first RS resource to send the second signal, which means that the first node uses the same spatial filter to send the second signal and receive RS in the first RS resource.

[0505] As an embodiment, the first node uses the same spatial filter as the second RS resource to send the second signal, which means that the first node uses the same spatial filter to send the second signal and receives or sends RS in the second RS resource.

[0506] Embodiment 11

[0507] Embodiment 11 illustrates a schematic diagram of a first reception quality set according to an embodiment of the present application that relies on measurements of RSs received in a first RS resource set; Fig.11 As shown in the attached Fig.11 (a), the first RS resource set includes only one RS resource, the first reception quality set includes only one reception quality, and the one reception quality depends on the measurement of the RS received in the one RS resource; Fig.11 In (b), the first RS resource set includes P1 RS resources, P1 is a positive integer greater than 1, and the first reception quality set includes P1 reception qualities, and the P1 reception qualities are respectively dependent on the measurement of the RSs received in the P1 RS resources. Fig.11 In the figure, the P1 RS resources are respectively represented as RS resource #0, ..., RS resource #(P1-1); the P1 reception qualities are respectively represented as reception quality #0, ..., reception quality #(P1-1).

[0508] As an embodiment, the first reception quality set includes one or more reception qualities.

[0509] As an embodiment, each reception quality in the first reception quality set corresponds to an RS resource in the first RS resource set.

[0510] As an embodiment, for any reception quality in the first reception quality set, this reception quality depends on the measurement of the RS received in the RS resource corresponding to this reception quality.

[0511] As an embodiment, any reception quality in the first reception quality set is RSRP (Reference Signal Received Power).

[0512] As an embodiment, any reception quality in the first reception quality set is layer 1 (L1)-RSRP.

[0513] As an embodiment, any reception quality in the first reception quality set is SINR (Signal-to-noise and interference ratio).

[0514] As an embodiment, any reception quality in the first reception quality set is L1-SINR.

[0515] As an embodiment, any reception quality in the first reception quality set is BLER (BLockErrorRate, block error rate).

[0516] As an embodiment, any reception quality in the first reception quality set is a BLER, and any reception quality in the first reception quality set is obtained based on a hypothetical PDCCH transmission parameter.

[0517] As an embodiment, the definition of the assumed PDCCH transmission parameters refers to 3GPP TS38.133.

[0518] As an embodiment, any reception quality in the first reception quality set is the RSRP of the RS received in the corresponding RS resource.

[0519] As an embodiment, any reception quality in the first reception quality set is the L1-RSRP of the RS received in the corresponding RS resource.

[0520] As an embodiment, any reception quality in the first reception quality set is the SINR of the RS received in the corresponding RS resource.

[0521] As an embodiment, any reception quality in the first reception quality set is the L1-SINR of the RS received in the corresponding RS resource.

[0522] As an embodiment, any reception quality in the first reception quality set is a BLER obtained based on the RS received in the corresponding RS resource.

[0523] Example 12

[0524] Embodiment 12 illustrates a schematic diagram of a first counter and a first signal according to an embodiment of the present application; Fig.12In embodiment 12, the first node maintains a first counter according to a first reception quality set; if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0525] As an embodiment, the first counter is BFI_COUNTER.

[0526] As an embodiment, the definition of the BFI_COUNTER refers to 3GPP TS38.321.

[0527] As an embodiment, the first counter is used in a beam failure detection procedure.

[0528] As an embodiment, the first RS resource set is configured to a BWP of a first cell, the first node maintains only one BFI_COUNTER in the first cell, and the only one BFI_COUNTER is the first counter.

[0529] As an embodiment, the problem to be solved by the present application includes how to determine whether the spatial filter of an uplink signal follows the RS resources indicated by the signal for beam failure recovery in a scenario where the first node only maintains one counter for beam failure detection and supports two indicated TCI states for uplink transmission.

[0530] As an embodiment, the benefits of the above method include optimizing the beam failure recovery mechanism.

[0531] As an embodiment, the first counter is initialized to 0.

[0532] As an embodiment, the initial value of the first counter is 0.

[0533] As an embodiment, when each reception quality in the first reception quality set is worse than a second threshold, the physical layer of the first node sends a beam failure instance indication to a higher layer.

[0534] As an embodiment, upon receiving a beam failure event indication from the physical layer of the first node, the higher layer of the first node increases the first counter by 1.

[0535] As an embodiment, if a beam failure event indication is received from the physical layer of the first node, the higher layer of the first node increases the first counter by 1.

[0536] As an embodiment, a reception quality worse than a second threshold means that: the reception quality is one of RSRP, L1-RSRP, SINR or L1-SINR, and the reception quality is less than the second threshold.

[0537] As an embodiment, a reception quality being worse than a second threshold means that: the reception quality is BLER, and the reception quality is greater than the second threshold.

[0538] As an embodiment, the second threshold is a real number.

[0539] As an embodiment, the second threshold is a positive real number.

[0540] As an embodiment, the second threshold is 10%.

[0541] As an embodiment, the second threshold is configurable.

[0542] As an embodiment, the second threshold is configured by a higher layer parameter.

[0543] As an embodiment, the second threshold is configured by a higher layer parameter "rlmInSyncOutOfSyncThreshold".

[0544] As an embodiment, if a beam failure event indication is received from the physical layer of the first node, a higher layer of the first node starts or re-enables a first timer.

[0545] As an embodiment, when the first timer expires, the first node sets the first counter to 0.

[0546] As an embodiment, if the first timer expires, the first node sets the first counter to 0.

[0547] As an embodiment, the first timer is RRC configured.

[0548] As an embodiment, the first timer is beamFailureDetectionTimer.

[0549] As an embodiment, the definition of the beamFailureDetectionTimer refers to 3GPP TS38.321.

[0550] As an embodiment, the initial value of the first timer is configured by a higher layer parameter whose name includes "beamFailureDetectionTimer".

[0551] As an embodiment, the initial value of the first timer is a positive integer.

[0552] As an embodiment, the initial value of the first timer is a positive real number.

[0553] As an embodiment, the unit of the initial value of the first timer is the Q of the RS detected by beam failure. out,LR Reporting cycle.

[0554] As an embodiment, the first RS resource set is configured to a BWP of a first cell, the first node is configured with only one beamFailureDetectionTimer in the first cell, and the only one beamFailureDetectionTimer is the first timer.

[0555] As an embodiment, in response to the first condition being met, the first signal is triggered.

[0556] As an embodiment, the first signal is triggered as the first condition is met.

[0557] As an embodiment, when the first condition is met, the first signal is triggered.

[0558] As an embodiment, the first condition is that the value of the first counter is not less than the first threshold.

[0559] As an embodiment, if the value of the first counter is greater than or equal to the first threshold, the first signal is triggered.

[0560] As an embodiment, the first signal is triggered in response to the value of the first counter being greater than or equal to the first threshold.

[0561] As an embodiment, the first signal is triggered when the value of the first counter is greater than or equal to the first threshold.

[0562] As an embodiment, when the value of the first counter is greater than or equal to the first threshold, the first signal is triggered.

[0563] As an embodiment, the first threshold is a positive integer.

[0564] As an embodiment, the first threshold is configured by RRC.

[0565] As an embodiment, the first threshold is beamFailureInstanceMaxCount.

[0566] As an embodiment, the definition of beamFailureInstanceMaxCount refers to 3GPP TS 38.321.

[0567] As an embodiment, the first threshold is configured by a higher layer parameter whose name includes "beamFailureInstanceMaxCount".

[0568] As an embodiment, the first RS resource set is configured to a BWP of a first cell, the first node is configured with only one beamFailureInstanceMaxCount in the first cell, and the only one beamFailureInstanceMaxCount is the first threshold.

[0569] Embodiment 13

[0570] Embodiment 13 illustrates a schematic diagram of a first counter and a first signal according to an embodiment of the present application; Fig.13 As shown. In embodiment 13, the first counter is initialized to 0; when each reception quality in the first reception quality set is worse than a second threshold, the physical layer of the first node sends a beam failure event indication to a higher layer of the first node; if a beam failure event indication is received from the physical layer of the first node, the higher layer of the first node adds 1 to the first counter; if the value of the first counter is greater than or equal to the first threshold, the first signal is triggered.

[0571] As an embodiment, the first signal is triggered in response to the value of the first counter being greater than or equal to the first threshold.

[0572] As an embodiment, the first signal is triggered when the value of the first counter is greater than or equal to the first threshold.

[0573] As an embodiment, when the value of the first counter is greater than or equal to the first threshold, the first signal is triggered.

[0574] Embodiment 14

[0575] Embodiment 14 illustrates a schematic diagram of a second reception quality set according to an embodiment of the present application depending on measurements of RSs received in a second RS resource set; Fig.14 As shown in the attached Fig.14(a), the second RS resource set includes only one RS resource, the second reception quality set includes only one reception quality, and the one reception quality depends on the measurement of the RS received in the one RS resource; Fig.14 In (b), the second RS resource set includes P2 RS resources, P2 is a positive integer greater than 1, and the second reception quality set includes P2 reception qualities, and the P2 reception qualities are respectively dependent on the measurement of the RS received in the P2 RS resources. Fig.14 In the figure, the P2 RS resources are respectively represented as RS resource #0, ..., RS resource #(P2-1); the P2 reception qualities are respectively represented as reception quality #0, ..., reception quality #(P2-1).

[0576] As an embodiment, the second RS resource set includes one or more RS resources.

[0577] As an embodiment, the second RS resource set includes CSI-RS resources.

[0578] As an embodiment, the second RS resource set includes SS / PBCH block resources.

[0579] As an embodiment, any RS resource in the second RS resource set is a CSI-RS resource.

[0580] As an embodiment, any RS resource in the second RS resource set is a SS / PBCH block resource.

[0581] As an embodiment, any RS resource in the second RS resource set is a CSI-RS resource or a SS / PBCH block resource.

[0582] As an embodiment, the second RS resource set is an RS set for identifying candidate beams for beam failure recovery.

[0583] As an embodiment, the second RS resource set is configured by a higher layer parameter.

[0584] As an embodiment, the second RS resource set is RRC configured.

[0585] As an embodiment, the second RS resource set is configured by RRC IE.

[0586] As an embodiment, the second RS resource set is configured by a higher layer parameter "candidateBeamRSList".

[0587] As an embodiment, the second RS resource set is configured by a higher-layer parameter whose name includes "candidateBeamRSList".

[0588] As an embodiment, the second RS resource set is configured by a higher layer parameter including "candidateBeamRS" in its name.

[0589] As an embodiment, the second RS resource set is configured by a higher-layer parameter whose name includes "candidateBeamRS-List".

[0590] As an embodiment, the second RS resource set is configured by BeamFailureRecoveryConfig IE.

[0591] As an embodiment, the second RS resource set is configured by the "candidateBeamRSList" field of the BeamFailureRecoveryConfig IE.

[0592] As an embodiment, the second RS resource set is configured by a field including "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE.

[0593] As an embodiment, the second RS resource set is configured by BeamFailureRecoveryRSConfig IE.

[0594] As an embodiment, the second RS resource set is configured by a field including "candidateBeamRS-List" in the name of the BeamFailureRecoveryRSConfig IE.

[0595] As an embodiment, the second RS resource set is configured by BWP-UplinkDedicated IE.

[0596] As an embodiment, the second RS resource set is configured by BWP-DownlinkDedicated IE.

[0597] As an embodiment, the second RS resource set is configured for a BWP of the first cell, and the second RS resource set is configured by including a field "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE of the BWP of the first cell.

[0598] As an embodiment, the second RS resource set is configured for a BWP of the first cell, and the second RS resource set is configured by including a field "candidateBeamRS-List" in the name of the BeamFailureRecoveryRSConfig IE of the BWP of the first cell.

[0599] As an embodiment, the first RS resource set and the second RS resource set are configured for the same cell.

[0600] As an embodiment, the first RS resource set and the second RS resource set are configured to the same BWP of the same cell.

[0601] As an embodiment, the first RS resource set and the second RS resource set are configured to different BWPs of the same cell.

[0602] As an embodiment, the first RS resource set and the second RS resource set are both configured for the first cell.

[0603] As an embodiment, the first RS resource set and the second RS resource set are both configured to the first BWP of the first cell.

[0604] As an embodiment, the first RS resource set is configured to a first BWP of a first cell, the second RS resource set is configured to a second BWP of the first cell, the first BWP is a downlink BWP, and the second BWP is an uplink BWP.

[0605] As a sub-embodiment of the above embodiment, the first BWP and the second BWP have the same BWP-Id.

[0606] As a sub-embodiment of the above embodiment, the first BWP is an active downlink BWP, and the second BWP is an active uplink BWP.

[0607] As an embodiment, the second RS resource set is configured to a BWP of the first cell, and the first node is configured with only one candidate RS resource set for beam failure recovery on the one BWP of the first cell.

[0608] As a sub-embodiment of the above embodiment, the first RS resource set is configured to the first BWP of the first cell.

[0609] As a reference embodiment of the above sub-embodiment, the one BWP is the first BWP.

[0610] As a reference embodiment of the above sub-embodiment, the one BWP is different from the first BWP.

[0611] As a sub-embodiment of the above embodiment, the one BWP is an uplink BWP.

[0612] As a sub-embodiment of the above embodiment, the one BWP is a downlink BWP.

[0613] As a sub-embodiment of the above embodiment, the only one candidate RS resource set for beam failure recovery configured by the first node in the one BWP of the first cell is the second RS resource set.

[0614] As a sub-embodiment of the above embodiment, the number of candidate RS resource sets for beam failure recovery configured by the first node in each BWP of the first cell is equal to 1.

[0615] As a sub-embodiment of the above embodiment, in another BWP of the first cell different from the one BWP, a candidate RS resource set for beam failure recovery configured by the first node is different from the second RS resource set.

[0616] As a sub-embodiment of the above embodiment, the number of candidate RS resource sets for beam failure recovery configured by the first node in each uplink BWP of the first cell is equal to 1.

[0617] As a sub-embodiment of the above embodiment, in another uplink BWP of the first cell different from the one BWP, a candidate RS resource set for beam failure recovery configured by the first node is different from the second RS resource set.

[0618] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a higher layer parameter.

[0619] As an embodiment, the only one candidate RS resource set for beam failure recovery is RRC configured.

[0620] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by RRC IE.

[0621] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a higher layer parameter "candidateBeamRSList".

[0622] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a higher layer parameter whose name includes "candidateBeamRSList".

[0623] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a higher layer parameter including "candidateBeamRS" in its name.

[0624] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a higher layer parameter whose name includes "candidateBeamRS-List".

[0625] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by the BeamFailureRecoveryConfig IE.

[0626] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by the "candidateBeamRSList" field of the BeamFailureRecoveryConfig IE.

[0627] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a field including "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE.

[0628] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by the BeamFailureRecoveryRSConfig IE.

[0629] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by a field including "candidateBeamRS-List" in the name of the BeamFailureRecoveryRSConfig IE.

[0630] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by BWP-UplinkDedicated IE.

[0631] As an embodiment, the only one candidate RS resource set for beam failure recovery is configured by BWP-DownlinkDedicated IE.

[0632] As an embodiment, the second RS resource set is configured for a BWP of the first cell, and the only one candidate RS resource set for beam failure recovery is configured by including a field "candidateBeamRSList" in the name of the BeamFailureRecoveryConfig IE of the one BWP of the first cell.

[0633] As an embodiment, the second RS resource set is configured for a BWP of the first cell, and the only one candidate RS resource set for beam failure recovery is configured by including a field "candidateBeamRS-List" in the name of the BeamFailureRecoveryRSConfig IE of the one BWP of the first cell.

[0634] As an embodiment, the second reception quality set includes one or more reception qualities.

[0635] As an embodiment, each reception quality in the second reception quality set corresponds to an RS resource in the second RS resource set.

[0636] As an embodiment, for any reception quality in the second reception quality set, this reception quality depends on the measurement of the RS received in the RS resource corresponding to this reception quality.

[0637] As an embodiment, any reception quality in the second reception quality set is RSRP.

[0638] As an embodiment, any reception quality in the second reception quality set is L1-RSRP.

[0639] As an embodiment, any reception quality in the second reception quality set is SINR.

[0640] As an embodiment, any reception quality in the second reception quality set is L1-SINR.

[0641] As an embodiment, any reception quality in the second reception quality set is BLER.

[0642] As an embodiment, any reception quality in the second reception quality set is the RSRP of the RS received in the corresponding RS resource.

[0643] As an embodiment, any reception quality in the second reception quality set is the L1-RSRP of the RS received in the corresponding RS resource.

[0644] As an embodiment, any reception quality in the second reception quality set is the SINR of the RS received in the corresponding RS resource.

[0645] As an embodiment, any reception quality in the second reception quality set is the L1-SINR of the RS received in the corresponding RS resource.

[0646] As an embodiment, for any reception quality in the second reception quality set, if the RS resource corresponding to this reception quality is an SS / PBCH block resource, this reception quality is the RSRP of the RS received in the corresponding RS resource; if the RS resource corresponding to this reception quality is a CSI-RS resource, this reception quality is the RSRP obtained after the receiving power of the RS received in the corresponding RS resource is scaled according to the value indicated by the higher-layer parameter "powerControlOffsetSS".

[0647] As a sub-embodiment of the above embodiment, the higher-layer parameter "powerControlOffsetSS" is configured for the corresponding RS resources.

[0648] As a sub-embodiment of the above embodiment, the RSRP is L1-RSRP.

[0649] Embodiment 15

[0650] Embodiment 15 illustrates a schematic diagram of a second reception quality set according to an embodiment of the present application being used to determine a first RS resource; Fig.15 In embodiment 15, the first node determines the first RS resource based on the second reception quality set.

[0651] As an embodiment, the second reception quality set is used by the first node to determine the first RS resource.

[0652] As an embodiment, the second reception quality set is used by the first node to determine the first RS resource from the second RS resource set.

[0653] As an embodiment, the first node determines the first RS resource from the second RS resource set based on the second reception quality set.

[0654] Generally speaking, how to determine the first RS resource in the second RS resource set is determined by the equipment manufacturer. Some non-restrictive implementation methods are introduced below.

[0655] As an embodiment, the first reception quality is a reception quality in the second reception quality set, the first reception quality depends on the measurement of the RS received in the first RS resource, and the first reception quality is higher than a third threshold.

[0656] As an embodiment, the first RS resource is an RS resource in the second RS resource set, the corresponding reception quality of which is higher than a third threshold.

[0657] As an embodiment, the first node determines the first RS resource from RS resources in the second RS resource set whose corresponding reception quality is higher than a third threshold.

[0658] As an embodiment, the first node randomly selects the first RS resource from the RS resources in the second RS resource set whose corresponding reception quality is higher than a third threshold.

[0659] As an embodiment, if all reception qualities in the second reception quality set are not higher than a third threshold, the first node randomly selects the first RS resource in the second RS resource set.

[0660] As an embodiment, a reception quality higher than a third threshold means that: the reception quality is one of RSRP, L1-RSRP, SINR or L1-SINR, and the reception quality is greater than the third threshold.

[0661] As an embodiment, a reception quality higher than a third threshold means that: the reception quality is BLER, and the reception quality is lower than the second threshold.

[0662] As an embodiment, the third threshold is a real number.

[0663] As an embodiment, the third threshold is a positive real number.

[0664] As an embodiment, the third threshold is configurable.

[0665] As an embodiment, the third threshold is configured by a higher layer parameter.

[0666] As an embodiment, the third threshold is configured by a higher layer parameter whose name includes "rsrp-ThresholdBFR".

[0667] As an embodiment, the third threshold is configured by a higher layer parameter whose name includes "rsrp-ThresholdSSB".

[0668] As an embodiment, the third threshold is configured by a higher layer parameter whose name includes "rsrp-ThresholdCSI-RS".

[0669] Example 16

[0670] Embodiment 16 illustrates a schematic diagram of whether the first node uses the same spatial filter as the first RS resource to send the second signal according to an embodiment of the present application, depending on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state; as shown in the attached Fig.16 In Embodiment 16, when the second signal is transmitted in the PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state.

[0671] As an embodiment, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is transmitted in the PUSCH or the PUCCH.

[0672] As an embodiment, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is transmitted in PUSCH, transmitted in PUCCH, or includes SRS transmission.

[0673] As an embodiment, only when the second signal is transmitted in the PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0674] As an embodiment, when the second signal is transmitted in the PUCCH, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0675] As an embodiment, when the second signal is transmitted in PUCCH, regardless of whether the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0676] As an embodiment, when the second signal includes SRS transmission, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0677] As an embodiment, when the second signal includes SRS transmission, regardless of whether the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0678] As an embodiment, when the second signal is transmitted in PUSCH or includes SRS transmission, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0679] Embodiment 17

[0680] Embodiment 17 illustrates a schematic diagram of whether the first node uses the same spatial filter as the first RS resource to send the second signal according to an embodiment of the present application; Fig.17 As shown. In Embodiment 17, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is transmitted in PUSCH or PUCCH; when the second signal is transmitted in PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state; when the second signal is transmitted in PUCCH, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0681] As an embodiment, when the second signal is transmitted in PUCCH, regardless of whether the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0682] Embodiment 18

[0683] Embodiment 18 illustrates a schematic diagram of whether the first node uses the same spatial filter as the first RS resource to send the second signal according to an embodiment of the present application; Fig.18As shown. In Embodiment 18, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is transmitted in PUSCH, transmitted in PUCCH, or includes SRS transmission; when the second signal is transmitted in PUSCH or includes SRS transmission, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state; when the second signal is transmitted in PUCCH, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0684] Embodiment 19

[0685] Embodiment 19 illustrates a schematic diagram of a candidate for a first indicated TCI state and a candidate for a second indicated TCI state according to an embodiment of the present application; Fig.19 In Embodiment 19, the candidates of the first indicated TCI state only include the TCI state configured by the first higher layer parameter, and the candidates of the second indicated TCI state only include the TCI state configured by the second higher layer parameter.

[0686] As an embodiment, the first higher layer parameter configures one or more TCI states.

[0687] As an embodiment, the second higher layer parameter configures one or more TCI states.

[0688] As an embodiment, the name of the first higher layer parameter includes "dl-OrJointTCI-StateList".

[0689] As an embodiment, the name of the first higher layer parameter includes "ul-TCI-StateList".

[0690] As an embodiment, the name of the first higher-layer parameter includes "dl-OrJointTCI-StateList" or "ul-TCI-StateList".

[0691] As an embodiment, the name of the second higher layer parameter includes "dl-OrJointTCI-StateList".

[0692] As an embodiment, the name of the second higher layer parameter includes "ul-TCI-StateList".

[0693] As an embodiment, the name of the second higher layer parameter includes "dl-OrJointTCI-StateList" or "ul-TCI-StateList".

[0694] As an embodiment, the name of the first higher-layer parameter includes "dl-OrJointTCI-StateList", and the name of the second higher-layer parameter includes "ul-TCI-StateList".

[0695] As an embodiment, the name of the first higher-layer parameter includes "ul-TCI-StateList", and the name of the second higher-layer parameter includes "dl-OrJointTCI-StateList".

[0696] As an embodiment, the name of the first higher-layer parameter includes "dl-OrJointTCI-StateList" and the name of the second higher-layer parameter includes "ul-TCI-StateList", or the name of the first higher-layer parameter includes "ul-TCI-StateList" and the name of the second higher-layer parameter includes "dl-OrJointTCI-StateList".

[0697] As an embodiment, the benefits of the above method include using TCI states configured with different higher-layer parameters to represent beams for different TRPs, which simplifies system design and has good backward compatibility.

[0698] As an embodiment, the first higher layer parameter includes a field in an RRC IE.

[0699] As an embodiment, the first higher layer parameter includes a field in the PDSCH-Config IE.

[0700] As an embodiment, the first higher layer parameter is a field in the PDSCH-Config IE whose name includes "dl-OrJointTCI-StateList".

[0701] As an embodiment, the first higher layer parameter includes a field in BWP-UplinkDedicatedIE.

[0702] As an embodiment, the first higher layer parameter is a field in the BWP-UplinkDedicated IE whose name includes "ul-TCI-StateList".

[0703] As an embodiment, the second higher layer parameter includes a field in an RRC IE.

[0704] As an embodiment, the second higher layer parameter includes a field in the PDSCH-Config IE.

[0705] As an embodiment, the second higher layer parameter is a field in the PDSCH-Config IE whose name includes "dl-OrJointTCI-StateList".

[0706] As an embodiment, the second higher layer parameter includes a field in BWP-UplinkDedicatedIE.

[0707] As an embodiment, the second higher layer parameter is a field in the BWP-UplinkDedicated IE whose name includes "ul-TCI-StateList".

[0708] As an embodiment, the first higher layer parameter is a field in the PDSCH-Config IE whose name includes "dl-OrJointTCI-StateList", and the second higher layer parameter is a field in the BWP-UplinkDedicatedIE whose name includes "ul-TCI-StateList".

[0709] As an embodiment, the first higher layer parameter is a field whose name includes "ul-TCI-StateList" in the BWP-UplinkDedicated IE, and the second higher layer parameter is a field whose name includes "dl-OrJointTCI-StateList" in the PDSCH-Config IE.

[0710] As an embodiment, the first higher layer parameter is a field in the PDSCH-Config IE whose name includes "dl-OrJointTCI-StateList" and the second higher layer parameter is a field in the BWP-UplinkDedicated IE whose name includes "ul-TCI-StateList", or, the first higher layer parameter is a field in the BWP-UplinkDedicatedIE whose name includes "ul-TCI-StateList" and the second higher layer parameter is a field in the PDSCH-Config IE whose name includes "dl-OrJointTCI-StateList".

[0711] As an embodiment, the benefits of the above method include using TCI states configured with different higher-layer parameters to represent beams for different TRPs, which simplifies system design and has good backward compatibility.

[0712] As an embodiment, the candidate for the first indicated TCI state is at least one TCI state configured by the first higher layer parameter, and the candidate for the second indicated TCI state is at least one TCI state configured by the second higher layer parameter.

[0713] As an embodiment, the candidates for the first indicated TCI state are all TCI states configured by the first higher layer parameters, and the candidates for the second indicated TCI state are all TCI states configured by the second higher layer parameters.

[0714] As an embodiment, the first indicated TCI state is one of the one or more TCI states configured by the first higher layer parameters, and the second indicated TCI state is one of the one or more TCI states configured by the second higher layer parameters.

[0715] Embodiment 20

[0716] Embodiment 20 illustrates a schematic diagram of whether the first node uses the same spatial filter as the first RS resource to send the second signal according to an embodiment of the present application; Fig. 20 In embodiment 20, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on at least one of the first higher layer parameter or the second higher layer parameter.

[0717] As an embodiment, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state, and at the same time depends on at least one of the first higher layer parameter or the second higher layer parameter.

[0718] As an embodiment, if the name of the first higher layer parameter includes "dl-OrJointTCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is instructed to adopt the first indicated TCI state.

[0719] As an embodiment, if the name of the first higher layer parameter includes "ul-TCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is instructed to adopt the second indicated TCI state.

[0720] As an embodiment, if the name of the second higher layer parameter includes "dl-OrJointTCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is instructed to adopt the second indicated TCI state.

[0721] As an embodiment, if the name of the second higher layer parameter includes "ul-TCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is instructed to adopt the first indicated TCI state.

[0722] As an embodiment, if the name of the first higher layer parameter includes "dl-OrJointTCI-StateList" and the name of the second higher layer parameter includes "ul-TCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is indicated to adopt the first indicated TCI state.

[0723] As an embodiment, if the name of the first higher layer parameter includes "ul-TCI-StateList" and the name of the second higher layer parameter includes "dl-OrJointTCI-StateList", the first node sends the second signal using the same spatial filter as the first RS resource only when the second signal is indicated to adopt the second indicated TCI state.

[0724] As an embodiment, the benefits of the above method include determining whether the spatial filter of the uplink signal follows the RS resources indicated by the signal for beam failure recovery based on the target receiver of the uplink signal, thereby further optimizing the performance of the uplink transmission and simplifying the system design.

[0725] Embodiment 21

[0726] Example 21 illustrates a schematic diagram of the TCI state indicated according to an embodiment of the present application; Fig.21In Embodiment 21, the first node receives a first MAC CE, and the first MAC CE maps L TCI state groups to code points of the DCI domain Transmission Configuration Indication respectively; any TCI state group of the L TCI state groups includes two TCI states for uplink, and one of the indicated TCI states is a TCI state for uplink in one of the L TCI state groups.

[0727] In the attached Fig.21 In the embodiment, the L TCI state groups are represented as TCI state group #0, ..., TCI state group #(L-1); the L TCI state groups are mapped to TCI code point #0, ..., TCI code point #(L-1), respectively; Fig.21 The TCI state index #x and TCI state index #y are the indexes of two TCI states for uplink included in one TCI state group among the L TCI state groups; the x and the y are non-negative integers respectively, and the y is greater than the x.

[0728] As an embodiment, the L TCI state groups are respectively mapped to L TCI code points.

[0729] As an embodiment, any TCI code point among the L TCI code points is a code point of the DCI domain TransmissionConfiguration Indication.

[0730] As an embodiment, the TCI state in any TCI state group of the L TCI state groups is sequentially mapped to the code points of the corresponding DCI domain Transmission Configuration Indication.

[0731] As an embodiment, the first MAC CE indicates the TCI states included in the L TCI state groups.

[0732] As an embodiment, the first MAC CE indicates the TCI states included in the L TCI state groups in sequence.

[0733] As an embodiment, the first MAC CE includes an index of each TCI state included in each TCI state group of the L TCI state groups.

[0734] As an embodiment, the indexes of all TCI states of the L TCI state groups are arranged sequentially in the first MAC CE.

[0735] As an embodiment, the first MAC CE indicates the two TCI states for uplink included in each TCI state group of the L TCI state groups.

[0736] As an embodiment, the first MAC CE sequentially indicates the indexes of the two TCI states for uplink included in each TCI state group of the L TCI state groups.

[0737] As an embodiment, the first MAC CE includes indexes of the two TCI states for uplink included in each TCI state group of the L TCI state groups.

[0738] As an embodiment, the indexes of the two TCI states for uplink included in any TCI state group of the L TCI state groups are arranged sequentially in the first MAC CE.

[0739] As an embodiment, the index of the TCI state is TCI-StateId or TCI-UL-StateId.

[0740] As an embodiment, the index of the TCI state is TCI-StateId or TCI-UL-StateId-r17.

[0741] As an embodiment, any TCI state of the two TCI states for uplink included in any TCI state group in the L TCI state groups is a joint TCI state or a UL TCI state.

[0742] As an embodiment, there is a TCI state group among the L TCI state groups, and the number of TCI states included in the group is equal to 2.

[0743] As an embodiment, there is a TCI state group among the L TCI state groups, in which at least one of the two TCI states for uplink included in the TCI state group can be used for both uplink and downlink.

[0744] As an embodiment, there is a TCI state group among the L TCI state groups, and the number of TCI states included in the group is greater than 2.

[0745] As an embodiment, there is a TCI state group among the L TCI state groups that includes at least one other TCI state except the two TCI states for uplink.

[0746] As a sub-embodiment of the above embodiment, the at least one additional TCI state cannot be used for uplink.

[0747] As a sub-embodiment of the above embodiment, the at least one additional TCI state is only used for downlink.

[0748] As an embodiment, one of the indicated TCI states is one of the two TCI states for uplink included in the TCI state group mapped by the code point of the DCI field TransmissionConfiguration Indication in the received DCI.

[0749] As an embodiment, the first indicated TCI state and the second indicated TCI state are the two TCI states for uplink included in the TCI state group of the code point mapping of the DCI domain Transmission Configuration Indication in the received DCI; the first indicated TCI state is the TCI state that is ranked first in the first MAC CE among the two TCI states for uplink, and the second indicated TCI state is the TCI state that is ranked last in the first MAC CE among the two TCI states for uplink.

[0750] As an embodiment, the first indicated TCI state is attached Fig.21 The TCI state indicated by the TCI state index #x in the second indication is the TCI state of the attached Fig.21 The TCI state identified by the TCI state index #y in.

[0751] As an embodiment, y is equal to x plus 1.

[0752] As an embodiment, y is greater than x plus 1.

[0753] As an embodiment, the first TCI state of the two TCI states for uplink included in any TCI state group among the L TCI state groups is a TCI state configured by the first higher layer parameters, and the second TCI state of the two TCI states included in any TCI state group among the L TCI state groups is a TCI state configured by the second higher layer parameters.

[0754] As a sub-embodiment of the above embodiment, the index of the first TCI state is located before the index of the second TCI state in the first MAC CE.

[0755] Embodiment 22

[0756] Embodiment 22 illustrates a structural block diagram of a processing device used in a first node according to an embodiment of the present application; Fig. 22 As shown in the attached Fig. 22 In the embodiment, the processing device 2200 in the first node includes a first transmitter 2201 and a first processor 2202.

[0757] In Embodiment 22, the first transmitter 2201 sends a first signal and a second signal; the first processor 2202 receives a first DCI.

[0758] In embodiment 22, the first signal indicates a first RS resource; the second signal is no earlier than the first symbol, and the first DCI is used to determine the first symbol; the first node is configured with only one RS resource set for beam failure detection, and the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0759] As an embodiment, the first signal includes a RACH preamble, and the first node receives the first DCI using the same quasi-co-location parameters as the first RS resource in a search space set indicated by a higher-layer parameter "recoverySearchSpaceId"; the first symbol is the first symbol after 28 symbols from the last symbol of the PDCCH carrying the first DCI.

[0760] As an embodiment, the first signal is transmitted in PUSCH, and the first signal includes BFR MAC CE or truncated BFR MAC CE; the PDCCH carrying the first DCI is the first PDCCH that schedules a PUSCH with the same HARQ process number and inverted NDI field value as the PUSCH carrying the first signal; the first symbol is the first symbol after 28 symbols from the last symbol of the PDCCH carrying the first DCI.

[0761] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and the first node is configured with only one RS resource set for beam failure detection in the first BWP of the first cell; the only one RS resource set for beam failure detection configured by the first node in the first BWP of the first cell is the first RS resource set.

[0762] As a sub-embodiment of the above embodiment, the only one RS resource set used for beam failure detection is configured by a higher-layer parameter "failureDetectionResourcesToAddModList".

[0763] As a sub-embodiment of the above embodiment, the only one RS resource set used for beam failure detection includes RS resources indicated by the TCI state of the CORESET for monitoring PDCCH configured in the first BWP of the first cell by the first node.

[0764] As a sub-embodiment of the above embodiment, the number of RS resource sets for beam failure detection configured by the first node in each downlink BWP of the first cell is equal to 1.

[0765] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and each CORESET of the first node configured in the first BWP of the first cell is not configured with coresetPoolIndex or is configured with a coresetPoolIndex set to 0.

[0766] As an embodiment, the second signal is transmitted in the dynamically scheduled PUSCH, and the second signal is instructed to adopt the first indicated TCI state, which means that the value of the SRS resource setindicator in the DCI domain of the scheduling DCI of the second signal is equal to 0; the second signal is instructed to adopt the second indicated TCI state, which means that the value of the SRS resource set indicator in the DCI domain of the scheduling DCI of the second signal is equal to 1.

[0767] As an embodiment, the second signal is transmitted in the PUSCH of the corresponding configuration grant, and the second signal is instructed to adopt the first indicated TCI state, which means: the third higher layer parameter indication "first" configured for the configuration grant corresponding to the second signal; the second signal is instructed to adopt the second indicated TCI state, which means: the third higher layer parameter indication "second" configured for the configuration grant corresponding to the second signal; the name of the third higher layer parameter includes "applyIndicatedTCIState".

[0768] As an embodiment, the second signal is transmitted in PUCCH, and the second signal is instructed to adopt the first indicated TCI state, which means: the fourth higher layer parameter configured for the PUCCH resource carrying the second signal indicates "first"; the second signal is instructed to adopt the second indicated TCI state, which means: the fourth higher layer parameter configured for the PUCCH resource carrying the second signal indicates "second"; the name of the fourth higher layer parameter includes "applyIndicatedTCIState".

[0769] As an embodiment, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, and the second signal is instructed to adopt a first indicated TCI state, which means: a fifth higher layer parameter configured to the third SRS resource set indicates "first"; the second signal is instructed to adopt a second indicated TCI state, which means: the fifth higher layer parameter configured to the third SRS resource set indicates "second"; the name of the fifth higher layer parameter includes "applyIndicatedTCIState".

[0770] As an embodiment, only when the second signal is instructed to adopt the TCI state indicated by the first signal, the first node uses the same spatial filter as the first RS resource to send the second signal.

[0771] As an embodiment, the first processor 2202 receives RS in the first RS resource set, and a first reception quality set depends on the measurement of the RS received in the first RS resource set; the first processor 2202 maintains a first counter based on the first reception quality set; wherein, if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0772] As an embodiment, the first processor 2202 receives RS in a second RS resource set, and the second reception quality set depends on the measurement of the RS received in the second RS resource set; wherein the first node is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; and the second reception quality set is used to determine the first RS resource.

[0773] As an embodiment, when the second signal is transmitted in the PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state.

[0774] As an embodiment, the candidates for the first indicated TCI state only include the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state only include the TCI state configured by the second higher layer parameters.

[0775] As an embodiment, the first node is user equipment.

[0776] As an embodiment, the first node is a relay node device.

[0777] As an embodiment, the first transmitter 2201 includes at least one of {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0778] As an embodiment, the first processor 2202 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0779] Embodiment 23

[0780] Embodiment 23 illustrates a structural block diagram of a processing device used in a second node according to an embodiment of the present application; Fig.23 As shown in the attached Fig.23 In the embodiment, the processing device 2300 in the second node includes a first receiver 2301 and a second transmitter 2302.

[0781] In Embodiment 23, a first receiver 2301 receives a first signal and a second signal; and a second transmitter 2302 sends a first DCI.

[0782] In Example 23, the first signal indicates a first RS resource; the second signal is no earlier than the first symbol, and the first DCI is used to determine the first symbol; the sender of the first signal is configured with only one RS resource set for beam failure detection, and the only one RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0783] As an embodiment, the first signal includes a RACH preamble, and the sender of the first signal receives the first DCI using the same quasi-co-location parameters as the first RS resource in the search space set indicated by the higher-layer parameter "recoverySearchSpaceId"; the first symbol is the first symbol after 28 symbols from the last symbol of the PDCCH carrying the first DCI.

[0784] As an embodiment, the first signal is transmitted in PUSCH, and the first signal includes BFR MAC CE or truncated BFR MAC CE; the PDCCH carrying the first DCI is the first PDCCH that schedules a PUSCH with the same HARQ process number and inverted NDI field value as the PUSCH carrying the first signal; the first symbol is the first symbol after 28 symbols from the last symbol of the PDCCH carrying the first DCI.

[0785] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and the sender of the first signal is configured with only one RS resource set for beam failure detection in the first BWP of the first cell; the only RS resource set for beam failure detection configured by the sender of the first signal in the first BWP of the first cell is the first RS resource set.

[0786] As a sub-embodiment of the above embodiment, the only one RS resource set used for beam failure detection is configured by a higher-layer parameter "failureDetectionResourcesToAddModList".

[0787] As a sub-embodiment of the above embodiment, the only one RS resource set used for beam failure detection includes RS resources indicated by the TCI status of the CORESET for monitoring PDCCH configured by the sender of the first signal in the first BWP of the first cell.

[0788] As a sub-embodiment of the above embodiment, the number of RS resource sets for beam failure detection configured by the sender of the first signal in each downlink BWP of the first cell is equal to 1.

[0789] As an embodiment, the first RS resource set is configured to the first BWP of the first cell, and each CORESET configured by the sender of the first signal in the first BWP of the first cell is not configured with coresetPoolIndex or is configured with a coresetPoolIndex set to 0.

[0790] As an embodiment, the second signal is transmitted in the dynamically scheduled PUSCH, and the second signal is instructed to adopt the first indicated TCI state, which means that the value of the SRS resource setindicator in the DCI domain of the scheduling DCI of the second signal is equal to 0; the second signal is instructed to adopt the second indicated TCI state, which means that the value of the SRS resource set indicator in the DCI domain of the scheduling DCI of the second signal is equal to 1.

[0791] As an embodiment, the second signal is transmitted in the PUSCH of the corresponding configuration grant, and the second signal is instructed to adopt the first indicated TCI state, which means: the third higher layer parameter indication "first" configured for the configuration grant corresponding to the second signal; the second signal is instructed to adopt the second indicated TCI state, which means: the third higher layer parameter indication "second" configured for the configuration grant corresponding to the second signal; the name of the third higher layer parameter includes "applyIndicatedTCIState".

[0792] As an embodiment, the second signal is transmitted in PUCCH, and the second signal is instructed to adopt the first indicated TCI state, which means: the fourth higher layer parameter configured for the PUCCH resource carrying the second signal indicates "first"; the second signal is instructed to adopt the second indicated TCI state, which means: the fourth higher layer parameter configured for the PUCCH resource carrying the second signal indicates "second"; the name of the fourth higher layer parameter includes "applyIndicatedTCIState".

[0793] As an embodiment, the second signal includes SRS, the second signal is transmitted in a third SRS resource set, and the second signal is instructed to adopt a first indicated TCI state, which means: a fifth higher layer parameter configured to the third SRS resource set indicates "first"; the second signal is instructed to adopt a second indicated TCI state, which means: the fifth higher layer parameter configured to the third SRS resource set indicates "second"; the name of the fifth higher layer parameter includes "applyIndicatedTCIState".

[0794] As an embodiment, only when the second signal is instructed to adopt the first indicated TCI state, the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal.

[0795] As an embodiment, the second transmitter 2302 sends RS in the first RS resource set, and a first reception quality set depends on the measurement of the RS sent in the first RS resource set; wherein the sender of the first signal maintains a first counter based on the first reception quality set; if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

[0796] As an embodiment, the second transmitter 2302 sends RS in a second RS resource set, and the second reception quality set depends on the measurement of the RS sent in the second RS resource set; wherein the sender of the first signal is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; and the second reception quality set is used to determine the first RS resource.

[0797] As an embodiment, when the second signal is transmitted in PUSCH, whether the sender of the first signal uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

[0798] As an embodiment, the candidates for the first indicated TCI state only include the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state only include the TCI state configured by the second higher layer parameters.

[0799] As an embodiment, the second node is a base station device.

[0800] As an embodiment, the second node is user equipment.

[0801] As an embodiment, the second node is a relay node device.

[0802] As an embodiment, the first receiver 2301 includes at least one of {antenna 420, receiver 418, receiving processor 470, multi-antenna receiving processor 472, controller / processor 475, memory 476} in Embodiment 4.

[0803] As an embodiment, the second transmitter 2302 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0804] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, transportation tools, vehicles, RSUs, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB, gNB, TRP (Transmitter Receiver Point), GNSS, relay satellites, satellite base stations, aerial base stations, RSU (Road Side Unit), drones, test equipment, such as wireless communication equipment such as transceivers or signaling testers that simulate some functions of base stations.

[0805] It should be understood by those skilled in the art that the present invention may be implemented in other specified forms without departing from its core or essential features. Therefore, the embodiments disclosed herein should be considered illustrative rather than restrictive in any way. The scope of the invention is determined by the appended claims rather than the preceding description, and all modifications within their equivalent meanings and regions are considered to be included therein.

Claims

1. A first node used for wireless communication, characterized in that: include: A first transmitter sends a first signal, where the first signal indicates a first RS resource; A first processor receives a first DCI; The first transmitter sends a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol; Among them, the first node is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

2. The first node according to claim 1, characterized in that: Only when the second signal is instructed to adopt the first indicated TCI state, the first node sends the second signal using the same spatial filter as the first RS resource.

3. The first node according to claim 1 or 2, characterized in that: The first processor receives RS in the first RS resource set, and a first reception quality set depends on the measurement of the RS received in the first RS resource set; the first processor maintains a first counter based on the first reception quality set; wherein, if a first condition is met, the first signal is triggered; the first condition includes that the value of the first counter is not less than a first threshold.

4. The first node according to any one of claims 1 to 3, characterized in that: The first processor receives RS in a second RS resource set, and the second reception quality set depends on the measurement of the RS received in the second RS resource set; wherein the first node is configured with only one candidate RS resource set for beam failure recovery, and the only one candidate RS resource set for beam failure recovery is the second RS resource set; the first RS resource is an RS resource in the second RS resource set; and the second reception quality set is used to determine the first RS resource.

5. The first node according to any one of claims 1 to 4, characterized in that: When the second signal is transmitted in the PUSCH, whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to use the first indicated TCI state or the second indicated TCI state.

6. The first node according to any one of claims 1 to 5, characterized in that: The candidates for the first indicated TCI state include only the TCI state configured by the first higher layer parameters, and the candidates for the second indicated TCI state include only the TCI state configured by the second higher layer parameters.

7. A second node used for wireless communication, characterized in that: include: A first receiver receives a first signal, wherein the first signal indicates a first RS resource; A second transmitter sends a first DCI; The first receiver receives a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol; Among them, the sender of the first signal is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

8. A method in a first node for wireless communication, characterized in that: include: Sending a first signal, where the first signal indicates a first RS resource; receiving a first DCI; sending a second signal, where the second signal is no earlier than a first symbol, and the first DCI is used to determine the first symbol; Among them, the first node is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the first node uses the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

9. A method in a second node for wireless communication, characterized in that: include: receiving a first signal, wherein the first signal indicates a first RS resource; Sending a first DCI; receiving a second signal, the second signal being no earlier than a first symbol, the first DCI being used to determine the first symbol; Among them, the sender of the first signal is configured with only one RS resource set for beam failure detection, the only RS resource set for beam failure detection is the first RS resource set, and the triggering of the first signal depends on the measurement of the first RS resource set; the second signal is instructed to adopt the first indicated TCI state or is instructed to adopt the second indicated TCI state, and whether the sender of the first signal adopts the same spatial filter as the first RS resource to send the second signal depends on whether the second signal is instructed to adopt the first indicated TCI state or the second indicated TCI state.

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