Method and apparatus for assessing downlink radio link quality

Abstract

A method and an apparatus for evaluating downlink radio link quality are provided, the method being used in a terminal device, the method including: configuring a secondary cell set; performing radio link monitoring on a primary secondary cell when the secondary cell set is deactivated if the secondary cell set is instructed by a network to support radio link monitoring; and / or performing beam failure detection of the primary secondary cell when the secondary cell set is deactivated if the secondary cell set is configured by a network to support beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell; and / or performing TRP-dedicated beam failure detection of the primary secondary cell when the secondary cell set is deactivated if the secondary cell set is configured by a network to support beam failure detection and a reference signal for TRP-dedicated beam failure detection is configured for the primary secondary cell.

Description

[Technical Field]

[0001] The present invention relates to the field of communications. [Background technology]

[0002] In RRC (RRC_CONNECTED), the terminal device performs Radio Link Monitoring (RLM) in the active Bandwidth Part (BWP) based on reference signals (e.g., synchronization signals and PBCH blocks SSB or channel state information reference signals CSI-RS) and reference signal thresholds set by the network.

[0003] Radio link monitoring is suitable for the Primary Cell (PCell) under SA NR, NR-DC and NE-DC operation modes, and for the Primary Secondary Cell (PSCell) under NR-DC and EN-DC operation modes.

[0004] SSB-based RLM is based on the SSB associated with the initial downlink BWP (DL BWP) and can be configured only for DL ​​BWPs, including the initial DL BWP and the SSB associated with the initial DL BWP. For other DL BWPs, RLM is performed based only on CSI-RS. The terminal device does not need to perform RLM for any DL BWP other than the active DL BWP.

[0005] In the case of a Dual Active Protocol Stack (DAPS) handover, the terminal device continues radio link failure (RLF) detection in the source cell until it successfully completes the random access procedure in the target cell.

[0006] Furthermore, for the Beam Failure Detection (BFD) procedure, the terminal device evaluates the downlink radio link quality of one serving cell based on a reference signal to detect beam failure. This is suitable for a PCell under SA, NR-DC, and NE-DC operation modes, a PSCell under NR-DC and EN-DC operation modes, and an SCell under SA, NR-DC, NE-DC, or EN-DC operation mode. The terminal device does not need to perform beam failure detection on one inactive SCell, nor does it need to perform beam failure detection on resources implicitly configured for one inactive SCell.

[0007] SSB-based beam failure detection is based on the SSB associated with the initial DL BWP and can be configured only for initial DL BWPs and DL BWPs including the SSB associated with the initial DL BWP. For other DL BWPs, beam failure detection is performed based only on CSI-RS. The terminal device does not need to perform beam failure detection for DL ​​BWPs other than the active DL BWP.

[0008] Beam failure is detected by counting the number of beam failure instance indications from lower layers to the MAC entity.

[0009] For physical layer problem detection under RRC_CONNECTED, the terminal equipment performs the following operations: 1> When any DAPS bearer is established, if N310 consecutive "out-of-sync" indications of source special cells are received from the lower layer and T304 is running, 2> Start timer T310 of the source special cell, 1> When N310 consecutive "out-of-sync" indications of special cells are received from the lower layer, and T300, T301, T304, T311, T316 and T319 are not running, 2> Start timer T310 of the corresponding special cell.

[0010] For recovery of physical layer problems, i.e., when receiving N311 consecutive "in-sync" indications of special cells from the lower layer and T310 is running, the terminal equipment performs the following operations: 1> Stop the timer T310 of the corresponding special cell; 1> Stop the timer T312 of the corresponding special cell.

[0011] The detection of a radio link failure involves the terminal device performing the following operations: 1> If any DAPS bearer is configured and T304 is running, 2> When T310 in the source special cell is broken; or 2> When the source MCG MAC indicates a random access problem; or 2> The source MCG RLC indicates that the maximum number of retransmissions has already been reached; or 2> When the source MCG MAC indicates a persistent uplink LBT failure, 3> The source MCG is considered to have detected a radio link failure, i.e., the source RLF; 3> Suspend sending and receiving of all DRBs in the source MCG; 3>Reset the source MCG MAC; 3> Release the source connection, 1>If not, 2> During the DAPS switching period, the following is only suitable for the target PCell: 2> When T310 in the PCell expires; or 2> When T312 in the PCell expires; or 2> MCG MAC indicates a random access problem and T300, T301, T304, T311 and T319 are not all running; or 2> MCG RLC indicates that the maximum number of retransmissions has already been reached; or 2> When connected as an IAB node, upon receiving a BH RLF indication for a BAP entity from an MCG; or 2> If the MCG MAC indicates a persistent uplink LBT failure and T304 is not running, 3> If this indication is from an MCG RLC, and CA duplication is configured and active for the MCG, and for the corresponding logical channel, allowedServingCells contains only secondary cells, 4> Initiate the failure information procedure to report the RLC failure, 3>If not, 4> It is considered that the MCG detects a radio link failure, i.e., MCG RLF; 4> discard all segments of the stored segmented RRC message; 4>If the AS is not safely activated, 5> Execute the action at RRC_IDLE entry, and the release cause is "other", 4> Otherwise, if the AS is securely activated but no SRB2 has been established and there is at least one DRB, or if no SRB2 has been established for the IAB, 5>Memorize wireless link failure information; 5> Execute the action at the time of entering RRC_IDLE, and the release reason is "RRC connection failure", 4>If not, 5>Memorize wireless link failure information; 5>If T316 is set; and 5> When SCG transmission is not suspended; and 5> If a PSCell change or PSCell addition is not performed (i.e., in the case of NR-DC, timer T304 of the NR PSCell is not running, or in the case of NE-DC, timer T307 of the E-UTRA PSCell is not running), 6> initiate an MCG failure information procedure to report an MCG radio link failure; 5>If not, 6> Start the connection re-establishment procedure.

[0012] The detection of the radio link failure further includes the terminal device performing the following operations: 1>T310 in PSCell is broken; or 1>T312 in PSCell is broken; or 1> When the SCG MAC indicates a random access problem; or 1> The SCG RLC indicates that the maximum number of retransmissions has already been reached; or 1> When connected as an IAB node, upon receiving a BH RLF indication for a BAP entity from an SCG; or 1> When the SCG MAC indicates a persistent uplink LBT failure, 2> If this indication is from an SCG RLC, and CA duplication is configured and active for the SCG, and for the corresponding logical channel, allowedServingCells contains only secondary cells, 3> Initiate the failure information procedure to report the RLC failure, 2>If not, 3> It is considered that the SCG detects a radio link failure, i.e., SCG RLF; 3>If the MCG is not suspended, 4> initiate an SCG failure information procedure to report an SCG radio link failure; 3>If not, 4> Start the connection re-establishment procedure.

[0013] The beam failure detection procedure uses the terminal equipment (UE) variable BFI_COUNTER, which is a counter of beam failure instance indications, initially set to 0, with one for each serving cell.

[0014] Figure 1 is a flowchart of detecting beam failure or triggering beam failure recovery of a serving cell. As shown in Figure 1, for each serving cell for which beam failure detection is configured, the MAC entity performs the following operations:

[0015] When a beam failure instance indication is received from a lower layer, Start or restart the beamFailureDetectionTimer; Add 1 to BFI_COUNTER, If BFI_COUNTER is greater than or equal to beamFailureInstanceMaxCount, If the serving cell is a secondary cell (SCell), trigger one BFR of this serving cell; Otherwise, start a random access procedure in this special cell (SpCell); The beamFailureDetectionTimer has expired; or When higher layers reset the beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signals for beam failure detection for this serving cell, Set BFI_COUNTER to 0.

[0016] This process is suitable for Rel-15 and Rel-16 special and secondary cells.

[0017] The MAC entity may be configured by the RRC with a beam failure recovery procedure for each serving cell, which is used to indicate one new SSB or CSI-RS to the serving network equipment when a beam failure is detected in the serving SSB(s) or CSI-RS(s).

[0018] It should be noted that the introduction of the above background art is intended to clearly and completely explain the technical solutions of the present invention and to facilitate understanding by those skilled in the art, and these technical solutions described in the background art of the present invention should not be construed as being known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0019] In a first aspect, for beam failure detection under multi-TRP (Transmission Reception Point) operation, the network equipment configures two sets of beam failure detection reference signals for the terminal equipment, each set being associated with one TRP, and when the number of beam failure instance indications associated with the corresponding set of beam failure detection reference signals from the physical layer reaches one configured threshold before a configured timer expires, the terminal equipment declares beam failure for this TRP.

[0020] After detecting the beam failure of one TRP of the serving cell, the terminal equipment performs the following operations: -Trigger beam failure recovery by initiating BFR MAC CE transmission for this TRP; - Select one suitable beam (if available) for this TRP and indicate in this BFR MAC CE of this TRP whether a suitable (new) beam has been found and information on beam failure.

[0021] When a PDCCH indicating an uplink grant for a new transmission of one HARQ process for the transmission of a BFR MAC CE of one TRP is received, the beam failure recovery of this TRP is considered to be completed.

[0022] After detecting the beam failure of the two TRPs of the special cell, the terminal equipment performs the following operations, namely: - triggering beam failure recovery by initiating a random access procedure in a special cell; - Select one suitable beam (if available) for each failed TRP and indicate in the BFR MAC CE of each failed TRP whether a suitable (new) beam has been found and the beam failure information; -When the random access procedure is completed, the two TRPs beam failure recovery of the special cell is considered complete.

[0023] Specifically, it is as follows: For TRP specific (dedicated) beam failure recovery triggers, several parameters are set by the RRC, e.g. -beamFailureInstanceMaxCount of beam failure detection for each BFD-RS pair of a serving cell where two BFD-RS pairs are configured; -beamFailureDetectionTimer for beam failure detection for each BFD-RS pair of a serving cell in which two BFD-RS pairs are configured.

[0024] The following UE variables are used in the beam failure detection procedure: -BFI_COUNTER (each BFD-RS pair of a serving cell for which two BFD-RS pairs are configured): A counter for beam failure instance indication, initially set to 0.

[0025] For each serving cell for which beam failure detection is configured, the MAC entity performs the following operations:

[0026] 1> If two BFD-RS pairs are configured for this serving cell, for each BFD-RS pair for this serving cell, the MAC entity: 2> When a beam failure instance indication for one BFD-RS pair is received from the lower layer, 3>Start or restart the beamFailureDetectionTimer; 3> Add 1 to the BFI_COUNTER of this BFD-RS pair; 3>If BFI_COUNTER is greater than or equal to beamFailureInstanceMaxCount, 4> Trigger a BFR for this BFD-RS pair in this serving cell, 2> If all BFRs for the two BFD-RS pairs of this special cell have been triggered and not completed successfully, 3> Start a random access procedure in this special cell, 2> If this serving cell is a special cell and the random access procedure initiated for beam failure recovery of the two BFD-RS pairs of this special cell is completed successfully, 3> Set BFI_COUNTER of each BFD-RS pair in the special cell to 0; 3>Consider this beam failure recovery procedure to have been successfully completed; 2> The beamFailureDetectionTimer for this BFD-RS pair expires; or 2> If higher layers reset the beamFailureDetectionTimer, beamFailureInstanceMaxCount, or any reference signals for beam failure detection for this BFD-RS pair of this serving cell, 3> Set BFI_COUNTER for this BFD-RS pair to 0, 2> When a PDCCH addressed to one C-RNTI is received, it indicates a new transmission uplink grant of one of the HARQ processes for transmitting an Enhanced BFR MAC CE or a Truncated Enhanced BFR MAC CE including beam failure recovery information of this BFD-RS set of this serving cell; 3> Set BFI_COUNTER for this BFD-RS pair to 0; 3> consider this beam failure recovery procedure to have completed successfully and cancel all triggered BFRs of this BFD-RS pair of this serving cell; 2> If this serving cell is a secondary cell and this secondary cell is inactive, 3> Set the BFI_COUNTER of each BFD-RS pair in the secondary cell to 0; 3> Consider this beam failure recovery procedure to have completed successfully and cancel all triggered BFRs of all BFD-RS pairs of this serving cell.

[0027] Regarding the second aspect, further enhancements to multi-RAT dual connectivity, in Rel-16, 3GPP has already implemented mobility enhancements for NR and LTE to reduce data transmission interruptions during switching and improve switching robustness. In Rel-16, 3GPP has already introduced several enhancements to improve efficient MR-DC configuration and MR-DC performance, such as early measurement reporting and fast MCG failure recovery by SCG.

[0028] In EN-DC, energy consumption of the terminal device and the network is a major issue due to the need to simultaneously maintain two radio links. In some cases, the energy consumption of an NR UE is three to four times higher than that of LTE. In an EN-DC deployment, the MN provides basic coverage. When the terminal device's data rate requirements change dynamically, for example, from high to low, it is worth considering (de)activating the SN to save energy consumption of the network and the terminal device. Therefore, Rel-17 should define a highly efficient SCG (de)activation mechanism, which may also be suitable for other MR-DC operations, such as NGEN-DC and NR-DC.

[0029] The inventors have discovered the following:

[0030] According to the prior art and the first aspect described above, in order to detect a radio link failure and / or a beam failure, the terminal equipment is required to perform the following operations: - monitoring radio link quality against reference signals for radio link failure detection, thereby providing "in-sync" or "out-of-sync" indication to higher layers (RRC); -Providing a beam failure instance indication to the upper layer (MAC) by evaluating the radio link quality of the reference signal for beam failure detection, wherein the reference signal for beam failure detection may be configured for one active DL BWP of one special cell or one active SCell, or may be configured for one TRP of one cell.

[0031] According to the second aspect, Rel-17 supports SCG activation and deactivation mechanisms, among which the SCG's special cell PSCell can be deactivated. When the SCG is deactivated, the PSCell and all SCells of the SCG are deactivated, and the terminal device performs RLM and beam failure detection on the PSCell if configured by the network. During SCG deactivation, in the case of PSCell beam failure, the terminal device stops beam failure detection upon PSCell beam failure and restores beam failure detection upon BFD-RS reconfiguration. When receiving an SCG deactivation command from the network, the terminal device may perform a random access procedure to the SCG if RLF or beam failure is declared.

[0032] The inventors have also found that the prior art has the following problems.

[0033] When only cell-level beam failure detection is supported under SCG deactivation, a reference signal for cell beam failure detection may not be set in the PSCell, and a reference signal for beam failure detection dedicated to the TRP may be set.In such a case, even if the network configures the terminal device to perform beam failure detection when the SCG is deactivated, the terminal device cannot perform cell-level beam failure detection and therefore cannot evaluate the beam quality.As a result, the terminal device may communicate using a beam with poor radio link quality, which may degrade communication quality.

[0034] When supporting cell-level / TRP-only beam failure detection under SCG deactivation, according to the existing mechanism, in the event of a beam failure, the terminal device stops beam failure detection and initiates a random access procedure to the SCG upon deactivation of the SCG. If a beam failure occurs only in one TRP of the PSCell and the other TRP is still available, the random access procedure upon deactivation of the SCG is unnecessary. In this case, initiating a random access procedure to the SCG may increase energy consumption and degrade the user experience.

[0035] To address one or more of the above-mentioned problems, embodiments of the present invention provide a method and apparatus for assessing downlink radio link quality. [Means for solving the problem]

[0036] According to a first aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a terminal device, the apparatus including: a first setting unit; The first setting unit sets a secondary cell group (SCG); Wherein, if the secondary cell pair is configured by the network to support radio link monitoring (RLM), the terminal device performs radio link monitoring on the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or, if the secondary cell pair is configured by the network to support beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, the terminal device performs beam failure detection for the primary secondary cell when the secondary cell pair is deactivated; and / or, if the secondary cell pair is configured by the network to support beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, the terminal device performs TRP-specific beam failure detection for the primary secondary cell when the secondary cell pair is deactivated.

[0037] According to a second aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a terminal device, the apparatus including: a second setting unit; The second configuration unit configures a secondary cell group (SCG); Wherein, if the network does not indicate that the secondary cell pair supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or, if the network does not indicate that the secondary cell pair supports beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell, the terminal device stops beam failure detection in the primary secondary cell when the secondary cell pair is deactivated; and / or, if the network does not indicate that the secondary cell pair supports beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell pair is deactivated.

[0038] According to a third aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a terminal device, the apparatus including: a third setting unit; The third configuration unit configures a secondary cell group (SCG); Wherein, if the network indicates that the secondary cell set or a secondary cell (SCell) of the secondary cell set supports radio link monitoring (RLM), the terminal device performs radio link monitoring on the secondary cell when the secondary cell set is deactivated; and / or, if the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, the terminal device performs beam failure detection of the secondary cell when the secondary cell set is deactivated; and / or, if the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, the terminal device performs TRP-specific beam failure detection of the secondary cell when the secondary cell set is deactivated.

[0039] According to a fourth aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a terminal device, the apparatus including: a fourth setting unit; The fourth setting unit sets a secondary cell group (SCG); Wherein, if the network does not indicate that the secondary cell pair or a secondary cell (SCell) of the secondary cell pair supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the secondary cell when the secondary cell pair is deactivated; and / or, if the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection, or a reference signal for cell beam failure detection is not configured for the secondary cell, the terminal device stops beam failure detection in the secondary cell when the secondary cell pair is deactivated; and / or, if the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection, or a reference signal for TRP-specific beam failure detection is not configured for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell pair is deactivated.

[0040] According to a fifth aspect of an embodiment of the present invention, there is provided an apparatus for evaluating downlink radio link quality, which is used in a terminal equipment, wherein, for each serving cell for which beam failure detection is set, when a first counter is greater than or equal to a predetermined threshold, the serving cell is a primary secondary cell, the secondary cell pair is inactive, and the secondary cell pair has not indicated beam failure of the primary secondary cell to an upper layer since it was deactivated, a MAC entity indicates beam failure of the primary secondary cell to an upper layer.

[0041] According to a sixth aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a network device, the apparatus comprising: a fifth setting unit; The fifth setting unit sets a secondary cell group (SCG) for the terminal device; Wherein, if the secondary cell pair indicates that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); and / or, if the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or, if the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs TRP-specific beam failure detection for the primary secondary cell.

[0042] According to a seventh aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being for use in a network device, the apparatus comprising: a sixth setting unit; The sixth setting unit sets a secondary cell group (SCG) for the terminal device; Wherein, if the secondary cell pair does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or, if the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, the terminal device stops beam failure detection in the primary secondary cell when the secondary cell pair is deactivated; and / or, if the secondary cell pair is not configured to support beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell pair is deactivated.

[0043] According to an eighth aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being used in a network device, the apparatus comprising: a seventh setting unit; The seventh setting unit sets a secondary cell group (SCG) for the terminal device; Among these, if the secondary cell set or a secondary cell (SCell) of the secondary cell set indicates that it supports radio link monitoring (RLM), the terminal device performs radio link monitoring on the secondary cell when the secondary cell set is deactivated; and / or if the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, the terminal device performs beam failure detection on the secondary cell when the secondary cell set is deactivated; and / or if the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, the terminal device performs TRP-specific beam failure detection of the secondary cell when the secondary cell set is deactivated.

[0044] According to a ninth aspect of an embodiment of the present invention, there is provided an apparatus for assessing downlink radio link quality, the apparatus being used in a network device, the apparatus including: an eighth setting unit; The eighth setting unit sets a secondary cell group (SCG) for the terminal device; Among these, if the secondary cell set or a secondary cell (SCell) of the secondary cell set does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the secondary cell when the secondary cell set is deactivated; and / or if the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, the terminal device stops beam failure detection in the secondary cell when the secondary cell set is deactivated; and / or if the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

[0045] According to a tenth aspect of an embodiment of the present invention, there is provided a terminal device, the terminal device including the device according to any one of the first to fifth aspects of the embodiment of the present invention.

[0046] According to an eleventh aspect of an embodiment of the present invention, there is provided a network device, the network device including the device according to any one of the sixth to ninth aspects of the embodiment of the present invention.

[0047] According to a twelfth aspect of an embodiment of the present invention, there is provided a communication system, the communication system including a terminal device according to the tenth aspect of an embodiment of the present invention and / or a network device according to the eleventh aspect of an embodiment of the present invention.

[0048] According to a thirteenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a terminal device, the method comprising: The method includes configuring a secondary cell group (SCG); and The method includes performing radio link monitoring on a primary secondary cell (PSCell) when the secondary cell set is deactivated if the network configures the secondary cell set to support radio link monitoring (RLM); and / or performing beam failure detection for the primary secondary cell when the secondary cell set is deactivated if the network configures the secondary cell set to support beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell; and / or performing TRP-specific beam failure detection for the primary secondary cell when the secondary cell set is deactivated if the network configures the secondary cell set to support beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell.

[0049] According to a fourteenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a terminal device, comprising: The method includes configuring a secondary cell group (SCG); and The method includes stopping radio link monitoring in a primary secondary cell (PSCell) when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair supports radio link monitoring (RLM); and / or stopping beam failure detection in the primary secondary cell when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair supports beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell; and / or stopping TRP-specific beam failure detection in the primary secondary cell when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair supports beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell.

[0050] According to a fifteenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a terminal device, comprising: The method includes configuring a secondary cell group (SCG); and performing radio link monitoring (RLM) on the secondary cell when the secondary cell set is deactivated if the network indicates that the secondary cell set or a secondary cell (SCell) of the secondary cell set supports radio link monitoring (RLM); and / or performing beam failure detection on the secondary cell when the secondary cell set is deactivated if the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell; and / or performing TRP-specific beam failure detection on the secondary cell when the secondary cell set is deactivated if a reference signal for TRP-specific beam failure detection is configured for the secondary cell.

[0051] According to a sixteenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a terminal device, The method includes configuring a secondary cell group (SCG); and The method includes stopping radio link monitoring (RLM) in the secondary cell pair when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair or a secondary cell (SCell) of the secondary cell pair supports radio link monitoring (RLM); and / or stopping beam failure detection in the secondary cell pair when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection or a reference signal for cell beam failure detection is not configured for the secondary cell; and / or stopping TRP-specific beam failure detection in the secondary cell pair when the secondary cell pair is deactivated if the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the secondary cell.

[0052] According to a seventeenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a terminal device, comprising: The method includes, for each serving cell for which beam failure detection is configured, when a first counter is greater than or equal to a predetermined threshold, the MAC entity indicating beam failure of the primary secondary cell to an upper layer if the serving cell is a primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated beam failure of the primary secondary cell to an upper layer since being deactivated.

[0053] According to an eighteenth aspect of an embodiment of the present invention, there is provided a method for assessing downlink radio link quality, the method being used in a network device, The method includes configuring a secondary cell group (SCG) for a terminal device, wherein, if the secondary cell group indicates that it supports radio link monitoring (RLM), the terminal device performs radio link monitoring on a primary secondary cell (PSCell) when the secondary cell group is deactivated; and / or, if the secondary cell group indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, the terminal device performs beam failure detection for the primary secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, the terminal device performs TRP-specific beam failure detection for the primary secondary cell when the secondary cell group is deactivated.

[0054] According to a nineteenth aspect of an embodiment of the present invention, there is provided a method for evaluating downlink radio link quality, the method being used in a network device, the method including configuring a secondary cell group (SCG) for a terminal device, wherein, if the secondary cell group does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring in a primary secondary cell (PSCell) when the secondary cell group is deactivated; and / or, if the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, the terminal device stops beam failure detection in the primary secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group is not configured to support beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell group is deactivated.

[0055] According to a twentieth aspect of an embodiment of the present invention, there is provided a method for evaluating downlink radio link quality, wherein the device is used in a network device, the method including: configuring a secondary cell group (SCG) for a terminal device, wherein, if the secondary cell group or a secondary cell (SCell) of the secondary cell group indicates that it supports radio link monitoring (RLM), the terminal device performs radio link monitoring on the secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group or a secondary cell of the secondary cell group indicates that it supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, the terminal device performs beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group or a secondary cell of the secondary cell group indicates that it supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, the terminal device performs TRP-specific beam failure detection of the secondary cell when the secondary cell group is deactivated.

[0056] According to a twenty-first aspect of an embodiment of the present invention, there is provided a method for evaluating downlink radio link quality, the method being used in a network device, the method including configuring a secondary cell group (SCG) for a terminal device, wherein, if the secondary cell group or a secondary cell (SCell) of the secondary cell group does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring on the secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group or a secondary cell of the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, the terminal device stops beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or, if the secondary cell group or a secondary cell of the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device stops TRP-specific beam failure detection on the secondary cell when the secondary cell group is deactivated.

[0057] According to a twenty-second aspect of an embodiment of the present invention, there is provided a computer-readable program, which, when executed by a downlink radio link quality assessment device or a terminal device, causes the downlink radio link quality assessment device or the terminal device to execute the downlink radio link quality assessment method described in any one of the thirteenth to seventeenth aspects of the embodiment of the present invention.

[0058] According to a twenty-third aspect of an embodiment of the present invention, there is provided a storage medium storing a computer-readable program, in which the computer-readable program causes a downlink radio link quality evaluation device or a terminal device to execute the downlink radio link quality evaluation method described in any one of the thirteenth to seventeenth aspects of the embodiment of the present invention.

[0059] According to a twenty-fourth aspect of an embodiment of the present invention, there is provided a computer-readable program, which, when executed by a downlink radio link quality evaluation device or a network device, causes the downlink radio link quality evaluation device or the network device to execute the downlink radio link quality evaluation method described in any one of the eighteenth to twenty-first aspects of the embodiment of the present invention.

[0060] According to a twenty-fifth aspect of an embodiment of the present invention, there is provided a storage medium storing a computer-readable program, in which the computer-readable program causes a downlink radio link quality evaluation device or a network device to execute the downlink radio link quality evaluation method described in any one of the eighteenth to twenty-first aspects of the embodiment of the present invention. [Effects of the Invention]

[0061] The advantageous effects of the embodiment of the present invention are at least as follows.

[0062] When the network indicates that the SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, the SCG performs beam failure detection for the PSCell when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0063] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience.

[0064] Furthermore, if the network instructs that the SCG supports radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality.

[0065] The following description and reference to the drawings disclose in detail particular embodiments of the present invention, illustrating ways in which the principles of the present invention may be employed, but the scope of the present invention is not limited thereto, and various changes, modifications, and alternatives may be included within the scope of the appended claims.

[0066] Additionally, features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in the other embodiments, or may be substituted for features in the other embodiments.

[0067] It should be noted that when used in this specification, terms such as "comprise / have" refer to the presence of a feature, element, step, or assembly, but do not exclude the presence or addition of one or more other features, elements, steps, or assemblies. [Brief explanation of the drawings]

[0068] Elements and features described in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments, and in the drawings, like reference numerals are used to indicate corresponding parts in several drawings and to indicate corresponding parts used in several embodiments.

[0069] The included drawings are used to provide a further understanding of the embodiments of the present invention, and these drawings constitute a part of this specification, illustrate embodiments of the present invention, and together with the written description, serve to explain the principles of the present invention. Also, it is apparent that the drawings described below are only for illustrating some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without any creative effort. [Figure 1] 10 is a flowchart of detecting beam failure or triggering beam failure recovery of a serving cell. [Figure 2] 1 is a diagram illustrating a communication system according to an embodiment of the present invention. [Figure 3] FIG. 1 illustrates a multi-TRP scenario in an embodiment of the present invention. [Figure 4] FIG. 2 is a diagram illustrating a method for evaluating downlink radio link quality in the first embodiment of the present invention. [Figure 5] FIG. 10 is a diagram illustrating a method for evaluating downlink radio link quality in a second embodiment of the present invention. [Figure 6] FIG. 10 is a diagram illustrating a method for evaluating downlink radio link quality in a third embodiment of the present invention. [Figure 7] FIG. 10 is a diagram illustrating a method for evaluating downlink radio link quality in a fourth embodiment of the present invention. [Figure 8]FIG. 10 is another diagram illustrating a method for evaluating downlink radio link quality in accordance with the fourth embodiment of the present invention. [Figure 9] FIG. 10 is a diagram illustrating a method for evaluating downlink radio link quality in a fifth embodiment of the present invention. [Figure 10] FIG. 10 is a diagram illustrating a method for evaluating downlink radio link quality in a sixth embodiment of the present invention. [Figure 11] FIG. 11 is a diagram illustrating a method for evaluating downlink radio link quality in a seventh embodiment of the present invention. [Figure 12] FIG. 13 is a diagram illustrating a method for evaluating downlink radio link quality in an eighth embodiment of the present invention. [Figure 13] FIG. 13 is another diagram illustrating a method for evaluating downlink radio link quality in accordance with the eighth embodiment of the present invention. [Figure 14] FIG. 13 is a diagram illustrating an evaluation device for downlink radio link quality according to a ninth embodiment of the present invention. [Figure 15] FIG. 19 is a diagram illustrating an evaluation device for downlink radio link quality in a tenth embodiment of the present invention. [Figure 16] FIG. 19 is a diagram illustrating an evaluation device for downlink radio link quality in an eleventh embodiment of the present invention. [Figure 17] FIG. 19 is another diagram illustrating an apparatus for evaluating downlink radio link quality according to the eleventh embodiment of the present invention. [Figure 18] FIG. 13 is a diagram illustrating an evaluation device for downlink radio link quality according to a thirteenth embodiment of the present invention. [Figure 19] FIG. 14 is a diagram illustrating an evaluation device for downlink radio link quality according to a fourteenth embodiment of the present invention. [Figure 20] FIG. 15 is a diagram illustrating an evaluation device for downlink radio link quality according to a fifteenth embodiment of the present invention. [Figure 21] FIG. 15 is another diagram showing an apparatus for evaluating downlink radio link quality according to the fifteenth embodiment of the present invention. [Figure 22] FIG. 22 is a block diagram showing the system configuration of a terminal device according to a sixteenth embodiment of the present invention. [Figure 23]FIG. 22 is a block diagram showing a system configuration of a network device according to a seventeenth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0070] The foregoing and other features of the present invention will become more apparent from a consideration of the accompanying drawings and the following description. It should be noted that while the specification and drawings set forth particular embodiments of the present invention, they illustrate only some of the embodiments which may employ the principles of the present invention, and it should be understood that the present invention is not limited to the described embodiments, but rather includes all modifications, variations, and alternatives which fall within the scope of the appended claims.

[0071] In embodiments of the present invention, the term "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as LTE (Long Term Evolution), LTE-A (LTE-Advanced), WCDMA (Wideband Code Division Multiple Access), HSPA (High-Speed ​​Packet Access), etc.

[0072] Additionally, communications between devices in a communications system may be performed according to any level of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, New Radio (NR), and / or other conventional or future-developed communications protocols.

[0073] In an embodiment of the present invention, the term "network equipment" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device. The network equipment may include, but is not limited to, a "node" and / or a "donor" under the IAB architecture, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobile management entity (MME), a network gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0074] The base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), etc., and may further include a Remote Radio Head (RRH), a Remote Radio Unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). The term "base station" may include some or all of these functions, and each base station can provide communication coverage for a specific geographical area. For example, a 5G base station gNB may include one gNB CU and one or more gNB DUs, where a CU / DU is a logical node of the gNB that has some of the functions of the gNB. The term "cell" may refer to a base station and / or the area it covers, depending on the context in which the term is used.

[0075] In the embodiments of the present invention, the term "user equipment" (UE) or "terminal equipment" (TE) refers to a device that accesses a communication network and receives services from the network, for example, via network equipment. The user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), station, etc. For example, it is a terminal equipment served by an IAB node or an IAB donor under the IAB architecture.

[0076] Among these, user equipment may include, but is not limited to, cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, mobile devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, etc.

[0077] Furthermore, for example, in a scenario such as the Internet of Things (IoT), the user equipment may also be a monitoring or measuring device or apparatus, for example, including but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0078] The following describes an example scenario of the present invention, but the present invention is not limited thereto.

[0079] FIG. 2 is a diagram illustrating a communication system according to an embodiment of the present invention. It illustrates an example of a terminal device and a network device. As shown in FIG. 2, a communication system 100 may include a network device 101 and a terminal device 102. For convenience, FIG. 2 illustrates an example of only one terminal device. The network device 101 is, for example, a network device gNB of an NR.

[0080] In an embodiment of the present invention, existing traffic (services / businesses) or future traffic may be carried between the network device 101 and the terminal device 102. For example, such traffic may include, but is not limited to, enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), Ultra-Reliable and Low-Latency Communication (URLLC), etc.

[0081] For example, in the case of a multi-TRP (mTRP) scenario, the network device provides services to the terminal device 102 via TRP-1 and TRP-2.

[0082] In an embodiment of the present invention, a TRP is a part of a network device that receives signals from and / or transmits signals to a terminal device. Multi-TRP (mTRP) operation allows a serving cell to schedule a terminal device from two TRPs, which may belong to the same cell, thereby providing better PDSCH coverage, reliability, and / or data rate. In the case of multi-TRP, there are two different operation modes: single DCI (Downlink Control Information) and multi-DCI. For these two modes, the uplink and downlink operation are controlled by the physical layer and MAC layer within the configuration provided by the RRC layer. In the single-DCI mode, the terminal device is scheduled by the same DCI from two TRPs, while in the multi-DCI mode, the terminal device is scheduled by a separate DCI from each TRP.

[0083] 3 is a diagram illustrating a multi-TRP scenario in an embodiment of the present invention. As shown in FIG. 3, a network device 101 deploys two TRPs, i.e., TRP1 and TRP2. The network device 101 works with a terminal device 102 through TRP1 and TRP2, for example, TRP1 and TRP2 belong to a PSCell. Even if a beam failure occurs only in TRP1 and TRP2 is still available, according to the conventional mechanism, the terminal device 102 stops beam failure detection for TRP1 and TRP2 when the SCG is deactivated. As a result, the terminal device 102 cannot evaluate the beam quality of the PSCell, and when the SCG is activated, the terminal device 102 can initiate a random access procedure with the network device 101. This may increase the energy consumption of the network and the terminal and degrade the user experience.

[0084] Various implementations of the present invention will be described below in conjunction with the drawings, which are merely examples and are not intended to limit the present invention. [Example]

[0085] In an embodiment of the present invention, a method for evaluating downlink radio link quality is provided, and the method is applied to a terminal device, for example, the method is used in the terminal device 102 in FIG.

[0086] 4 is a diagram illustrating a method for evaluating downlink radio link quality in accordance with the first embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

[0087] Step 401: Configure a secondary cell group (SCG); Step 402: If the secondary cell pair is instructed by the network to support radio link monitoring (RLM), perform radio link monitoring on the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or Step 403: If the network indicates that the secondary cell pair supports beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, perform beam failure detection for the primary secondary cell when the secondary cell pair is deactivated; and / or Step 404: If the network indicates that the secondary cell pair supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, perform TRP-specific beam failure detection for the primary secondary cell when the secondary cell pair is deactivated.

[0088] In an embodiment of the present invention, after step 401, the method may include at least one step among steps 402-404, and when the method includes multiple steps among steps 402-404, there is no limitation on the execution order of these steps.

[0089] In this way, when the network indicates that the SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Therefore, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality, thereby ensuring communication quality.

[0090] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience.

[0091] In some embodiments, "TRP-specific" may be replaced with "of a BFD-RS pair" or "associated with a BFD-RS pair."

[0092] In some embodiments, "beam failure" may be replaced with "beam failure recovery" or "triggering beam failure recovery."

[0093] In step 401, establishing a secondary cell group (SCG) refers to establishing a secondary cell group in a terminal device.

[0094] In some embodiments, the primary secondary cell is a primary secondary cell of a set of secondary cells configured for the terminal device.

[0095] In some embodiments, the configuration indicating whether or not radio link monitoring (RLM) and / or beam failure detection is supported may be included in a CellGroupConfig IE.

[0096] In some embodiments, the network may indicate, by a common configuration or a separate configuration, that radio link monitoring is supported when the secondary cell group is deactivated or whether radio link monitoring is supported when the secondary cell group is deactivated, and / or that beam failure detection is supported when the secondary cell group is deactivated or whether beam failure detection is supported when the secondary cell group is deactivated. For example, the common configuration or separate configuration may be included in a CellGroupConfig IE.

[0097] In some embodiments, the common configuration, when used to configure deactivation of an SCG, instructs the terminal device to perform radio link monitoring and / or beam failure detection, or instructs whether the terminal device should perform radio link monitoring and / or beam failure detection, the beam failure detection including cell beam failure detection or TRP-specific beam failure detection.

[0098] In some embodiments, the common setting may be BOOLEAN data or ENUMERATED data.

[0099] In some embodiments, when the common setting is BOOLEAN data, a value of "true" indicates that the terminal device performs radio link monitoring and / or beam failure detection when the SCG is deactivated, and a value of "false" indicates that the terminal device does not perform / stops radio link monitoring and / or beam failure detection when the SCG is deactivated. In this case, the field of the common setting is a mandatory field.

[0100] For example, if the common setting is BOOLEAN data, the common setting indicates whether the terminal device performs radio link monitoring and / or beam failure detection when used to configure deactivation of the SCG, and the beam failure detection includes cell beam failure detection or TRP-specific beam failure detection.

[0101] In some embodiments, if the common setting is ENUMERATED data, the value is "true", which means that if this field is set, the terminal device performs radio link monitoring and / or beam failure detection when the SCG is deactivated. In this case, the common setting field is an optional field and is not required.

[0102] For example, if the common setting is ENUMERATED data, when the common setting is used to set the deactivation of the SCG, it instructs the terminal equipment to perform radio link monitoring and / or beam failure detection, and the beam failure detection includes cell beam failure detection or TRP-specific beam failure detection.

[0103] In some embodiments, the single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instruct the terminal device whether to perform radio link monitoring and cell beam failure detection on the primary secondary cell, or instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device whether to perform radio link monitoring on the primary secondary cell or instructing the terminal device to perform radio link monitoring on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell, or instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell, or instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell; and When used to configure the deactivation of the secondary cell set, it instructs the terminal device whether to perform TRP-specific beam failure detection on the primary secondary cell, or instructs the terminal device to perform TRP-specific beam failure detection on the primary secondary cell.

[0104] In some embodiments, the single setting may be BOOLEAN data or ENUMERATED data.

[0105] In some embodiments, when the single setting is BOOLEAN data, a value of "true" indicates that the terminal device performs radio link monitoring and / or beam failure detection when the SCG is deactivated, and a value of "false" indicates that the terminal device does not perform radio link monitoring and / or beam failure detection when the SCG is deactivated. In this case, the field of the single setting is mandatory.

[0106] For example, if the single setting is BOOLEAN data, the single setting includes at least one of the following: Indicating whether the terminal device should perform radio link monitoring and cell beam failure detection on the primary secondary cell when used to configure deactivation of the secondary cell set; Indicating whether the terminal device should perform radio link monitoring on the primary secondary cell when used to configure the deactivation of the secondary cell set; Indicating whether the terminal device should perform cell or TRP-specific beam failure detection on the primary secondary cell when used to configure deactivation of the secondary cell set; When used to configure the deactivation of the secondary cell set, indicates whether the terminal device performs cell beam failure detection on the primary secondary cell; and When used to configure the deactivation of the secondary cell set, indicates whether the terminal device should perform TRP-specific beam failure detection on the primary secondary cell.

[0107] In some embodiments, if the single setting is ENUMERATED data, the value is "true", which means that if this field is set, the terminal device performs radio link monitoring and / or beam failure detection when the SCG is deactivated. In this case, the field of the single setting is optional and not required.

[0108] For example, if the single setting is ENUMERATED data, the single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instructing the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device to perform radio link monitoring on the primary secondary cell; instructing the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell when used to configure deactivation of the secondary cell set; When used to configure the deactivation of the secondary cell set, instructing the terminal device to perform cell beam failure detection on the primary secondary cell; and When used to configure the deactivation of the secondary cell set, it instructs the terminal device to perform TRP-specific beam failure detection on the primary secondary cell.

[0109] In some embodiments, for the configured secondary cell set, when activation of the secondary cell set is instructed by higher layers, the MAC entity can use at least one of the following secondary cell set activation operations: activate the primary secondary cell; transmit SRS on the primary secondary cell; report CSI on the primary secondary cell; monitor PDCCH on the primary secondary cell; transmit PUCCH on the primary secondary cell; perform random access on the primary secondary cell if triggered; and initialize Bj to 0 for each logical channel associated with the primary secondary cell.

[0110] In some embodiments, for a set of secondary cells to be configured, when a higher layer instructs the deactivation of the set of secondary cells, the MAC entity can perform at least one of the following: deactivate all secondary cells (SCells) of the set of secondary cells to be configured; deactivate the primary secondary cell; and reset the MAC.

[0111] In some embodiments, resetting the MAC may include at least one of the following: stopping all running timers other than the first timer or stopping all running timers; stopping any running random access procedure; clearing the Msg3 buffer; clearing the MSGA buffer; canceling any triggered beam failure recovery (BFR); and resetting the first counter.

[0112] In step 402, if the secondary cell set is indicated by the network to support radio link monitoring (RLM), perform radio link monitoring on a primary secondary cell (PSCell) when the secondary cell set is deactivated.

[0113] In some embodiments, performing radio link monitoring on a primary secondary cell (PSCell) may include the following: the terminal device performs radio link monitoring on a BWP other than the active DL BWP when configured by the network to perform radio link monitoring on an inactive primary secondary cell; or the terminal device is required to perform radio link monitoring on a BWP other than the active DL BWP only when configured by the network to perform radio link monitoring on an inactive primary secondary cell.

[0114] For example, if the network configures radio link monitoring to be performed on an inactive primary secondary cell, and no radio link failure is detected on the primary secondary cell or the secondary cell set in which the primary secondary cell is located, the terminal device performs radio link monitoring on a BWP other than the active DL BWP.

[0115] In step 403, in some embodiments, stopping all running timers other than the first timer or stopping all running timers may include: If the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell of the secondary cell set, stop all other running timers other than the first timer, which includes a TA timer (e.g., TA timer) and a beam failure detection timer (e.g., beamFailureDetectionTimer) associated with the primary secondary cell.

[0116] In some embodiments, the TRP-specific beam failure detection timer may be replaced with a beam failure detection timer associated with the BFD-RS pair.

[0117] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP may be replaced by configuring multiple (e.g., two) BFD-RS pairs.

[0118] In some embodiments, the revocation of a triggered beam failure recovery (BFR) may include at least one of the following: revocation of a triggered beam failure recovery of a primary secondary cell; and revocation of a triggered beam failure recovery of one BFD-RS pair of a primary secondary cell.

[0119] For example, if the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection, and a reference signal for beam failure detection dedicated to TRP is configured for the primary secondary cell of the secondary cell set, beam failure detection of one BFD-RS set of the primary secondary cell is stopped.

[0120] In some embodiments, the first counter may be a beam fail indication counter, for example, BFI_COUNTER.

[0121] In some embodiments, when instructed by the network, the first counter does not include the BFI_COUNTER of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER of the PSCell.

[0122] For example, when the first counter is a beam failure indication counter when instructed by the network, the first counter does not include the BFI_COUNTER of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER of the PSCell.

[0123] If the network indicates that the secondary cell set supports beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, beam failure detection is performed for the primary secondary cell when the secondary cell set is deactivated.

[0124] In some embodiments, configuring a reference signal for cell beam failure detection or a reference signal for TRP-specific beam failure detection for the primary secondary cell may be an explicit configuration or an implicit configuration, for example, the explicit configuration may be indicated by RRC and / or MAC signaling, and the implicit configuration may be determined by the terminal device receiving the TCI state via the PDCCH.

[0125] In some embodiments, configuring a reference signal for cell beam failure detection for the primary secondary cell may be said to not configure a reference signal for beam failure detection dedicated to TRP for the primary secondary cell.

[0126] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP for the primary secondary cell may be said to not configure a reference signal for cell beam failure detection for the primary secondary cell.

[0127] In some embodiments, performing beam failure detection for the primary secondary cell may include: For each serving cell for which beam failure detection is configured, when the first counter (value) is greater than or equal to a predetermined threshold, the MAC entity indicates to the upper layer a beam failure of the primary secondary cell if the serving cell is the primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated to the upper layer a beam failure of the primary secondary cell since it was deactivated.

[0128] For example, the first counter is BFI_COUNTER and the predetermined threshold is beamFailureInstanceMaxCount.

[0129] In some embodiments, performing beam failure detection of the primary secondary cell further includes: If the network does not set the first parameter, for example, if the value of bfd-and-RLM is "true", or if an instruction is received from the MAC layer, the terminal device or RRC layer instructs the lower layer to stop beam failure detection on the primary secondary cell.

[0130] For example, the lower layer is a MAC layer or a physical layer or an RF chain.

[0131] In some embodiments, performing beam failure detection of the primary secondary cell further includes: The MAC entity indicates to the lower layer a beam failure for the primary secondary cell, or instructs the lower layer to stop beam failure detection for the primary secondary cell.

[0132] For example, the MAC entity indicates to the upper layer a beam failure of the primary secondary cell, and after receiving the MAC indication, the terminal device instructs the lower layer to stop beam failure detection in the primary secondary cell.

[0133] For example, the lower layer is the physical layer or the RF chain.

[0134] The above instruction process is also suitable for step 404.

[0135] In step 404, if the network indicates that the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, perform TRP-specific beam failure detection for the primary secondary cell when the secondary cell set is deactivated.

[0136] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP for the primary secondary cell may be an explicit configuration or an implicit configuration, for example, the implicit configuration is determined by receiving a TCI state via a PDCCH.

[0137] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP for the primary secondary cell may be said to not configure a reference signal for cell beam failure detection for the primary secondary cell.

[0138] In some embodiments, step 404 may include at least one of the following: During the deactivation period of the secondary cell set, when a beam failure is detected for one BFD-RS set in the primary secondary cell, the terminal device stops detecting beam failure for the BFD-RS set, or during the deactivation period of the secondary cell set, when a beam failure is detected for one TRP in the primary secondary cell, the terminal device stops detecting beam failure for the TRP; During the deactivation period of the secondary cell set, when resetting the reference signal of one BFD-RS set of the primary secondary cell, the terminal device recovers beam failure detection of the BFD-RS set, and resets the reference signal of the one BFD-RS set of the primary secondary cell, for example, by RRC signaling and / or MAC signaling; During the deactivation period of the secondary cell pair, when beam failure recovery has been triggered for two BFD-RS pairs on the primary secondary cell and has not been completed successfully, if the MAC layer has not indicated a beam failure to an upper layer since the secondary cell pair was deactivated, the MAC layer indicates a beam failure to an upper layer; and When receiving an activation command for the secondary cell set from the network, if beam failures are detected for all two BFD-RS sets in the primary secondary cell, the terminal device performs a random access procedure for the secondary cell set.

[0139] In some embodiments, "during the deactivation period of the secondary cell set" may be written as "when the secondary cell set is deactivated," "if the secondary cell set is deactivated," or "when the secondary cell set is deactivated."

[0140] In some embodiments, stopping all running timers other than the first timer or stopping all running timers may include: and / or when the network indicates that the secondary cell pair supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for a primary secondary cell of the secondary cell pair, stopping all other running timers other than a first timer, the first timer including a TA timer (e.g., TA timer) and a beam failure detection timer (e.g., beamFailureDetectionTimer) associated with the primary secondary cell; and / or When the network indicates that the secondary cell pair supports radio link monitoring and / or beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a primary secondary cell of the secondary cell pair, stop all other running timers other than a first timer, where the first timer includes a TA timer (e.g., TA timer) and a beam failure detection timer associated with the primary secondary cell or a beam failure detection timer (e.g., beamFailureDetectionTimer) dedicated to each TRP of the primary secondary cell.

[0141] In some embodiments, the TRP-specific beam failure detection timer may be replaced with a beam failure detection timer associated with the BFD-RS pair.

[0142] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP may be replaced by configuring multiple (e.g., two) BFD-RS pairs.

[0143] In some embodiments, the cancellation of a triggered beam failure recovery (BFR) may include at least one of the following: canceling the triggered beam failure recovery of the primary secondary cell; canceling the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; not canceling the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; and ceasing beam failure detection of one BFD-RS set of the primary secondary cell.

[0144] For example, if the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a TRP-specific reference signal for beam failure detection is configured for the primary secondary cell of the secondary cell set, do not cancel the triggered beam failure recovery of one BFD-RS set of the primary secondary cell and / or stop beam failure detection of one BFD-RS set of the primary secondary cell.

[0145] For example, if the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection, a TRP-specific reference signal for beam failure detection is configured for the primary secondary cell of the secondary cell set, and beam failure recovery is triggered for only one BFD-RS set of the primary secondary cell, the triggered beam failure recovery of the BFD-RS set of the primary secondary cell is not canceled and / or beam failure detection of the BFD-RS set of the primary secondary cell is stopped.

[0146] In some embodiments, the first counter may be a beam fail indication counter, for example, BFI_COUNTER.

[0147] In some embodiments, corresponding to step 403, when instructed by the network, the first counter does not include the BFI_COUNTER of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER of the PSCell.

[0148] For example, when the first counter is a beam failure indication counter when instructed by the network, the first counter does not include the BFI_COUNTER of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER of the PSCell.

[0149] In some embodiments, corresponding to step 404, when instructed by the network, the first counter does not include the BFI_COUNTER of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER of the PSCell, and / or when instructed by the network, the first counter does not include the BFI_COUNTER associated with each BFD-RS pair of the PSCell, or it may be said that the first counter excludes the BFI_COUNTER associated with each BFD-RS pair of the PSCell.

[0150] For example, when the network instructs, if the first counter is a beam failure indication counter, the first counter may be said to not include the BFI_COUNTER of the PSCell or to exclude the BFI_COUNTER of the PSCell, and / or when the network instructs, if the first counter is a beam failure indication counter, the first counter may be said to not include the BFI_COUNTER associated with each BFD-RS pair of the PSCell or to exclude the BFI_COUNTER associated with each BFD-RS pair of the PSCell.

[0151] In some embodiments, performing beam failure detection dedicated to the TRP of the primary secondary cell may include: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of the two BFD-RS pairs of the special cell has been triggered and not completed successfully, When the serving cell is the primary secondary cell, and the secondary cell set in which the special cell is located is inactive, and the secondary cell set has not indicated beam failure of the primary secondary cell to the higher layer since it was deactivated, the MAC entity indicates beam failure of the primary secondary cell to the higher layer.

[0152] In some embodiments, performing TRP-specific beam failure detection of the primary secondary cell may further include: If the network does not set the first parameter, for example, if the value of bfd-and-RLM is "true", or if an instruction is received from the MAC layer, the terminal device or RRC layer instructs the lower layer to stop beam failure detection on the primary secondary cell.

[0153] For example, the lower layer is a MAC layer or a physical layer or an RF chain.

[0154] In some embodiments, performing beam failure detection of the primary secondary cell further includes: The MAC entity indicates to the lower layer a beam failure for the primary secondary cell, or instructs the lower layer to stop beam failure detection for the primary secondary cell.

[0155] For example, the lower layer is the physical layer or the RF chain.

[0156] In some embodiments, performing TRP-specific beam failure detection of the primary secondary cell may further include: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of the two BFD-RS pairs of the special cell has been triggered and not completed successfully, When the serving cell is not the primary secondary cell, or the secondary cell set in which the special cell is located is not inactive, or the secondary cell set has been deactivated and has already indicated beam failure of the primary secondary cell to higher layers, the MAC entity initiates a random access procedure in the primary secondary cell.

[0157] That is, when two BFD-RS pairs are configured in a serving cell, and for each BFD-RS pair of the serving cell, beam failure recovery of the two BFD-RS pairs of the special cell has been triggered and not completed successfully, If the serving cell is the primary secondary cell, and the secondary cell set in which the special cell is located is inactive, and the secondary cell set has not indicated beam failure of the primary secondary cell to the higher layer since it was deactivated, the MAC entity indicates beam failure of the primary secondary cell to the higher layer; otherwise, the MAC entity initiates a random access procedure in the primary secondary cell.

[0158] In some embodiments, the serving cell not being the primary secondary cell may be replaced by the serving cell being the primary cell.

[0159] In some embodiments, the inactivity of the secondary cell set in which the special cell resides may be replaced by the activity of the secondary cell set in which the special cell resides.

[0160] In some embodiments, performing beam failure detection dedicated to the TRP of the primary secondary cell may include: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if the beam failure recovery procedure determines that at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell, and for example, evaluation of the candidate beam has already been completed; When the serving cell is the primary secondary cell and the secondary cell set is inactive, the MAC entity indicates to the upper layer a beam failure of the BFD-RS set of the primary secondary cell.

[0161] In some embodiments, performing TRP-specific beam failure detection of the primary secondary cell may further include: Upon receiving the instruction, the terminal device instructs the lower layer to stop beam failure detection for the BFD-RS set in the primary secondary cell.

[0162] For example, the lower layer is a MAC layer or a physical layer or an RF chain.

[0163] In some embodiments, performing TRP-specific beam failure detection of the primary secondary cell may further include: When two BFD-RS pairs are configured in a serving cell, if it is determined that for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is the primary secondary cell and the secondary cell set is inactive, the MAC entity indicates to the lower layer a beam failure of the BFD-RS set of the primary secondary cell, or instructs the primary secondary cell to stop beam failure detection of the BFD-RS set at the primary secondary cell.

[0164] For example, the lower layer is the physical layer or the RF chain.

[0165] In some embodiments, performing beam failure detection dedicated to the TRP of the primary secondary cell may include: When two BFD-RS pairs are configured in a serving cell, if it is determined that for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is not the primary secondary cell or the secondary cell set is not inactive, the MAC entity instructs the multiplexing and assembly procedure to generate an Enhanced BFR MAC CE or a Truncated Enhanced BFR MAC CE or trigger an SR.

[0166] That is, when two BFD-RS pairs are configured in a serving cell, if it is determined that for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, If the serving cell is the primary secondary cell and the secondary cell set is inactive, the MAC entity instructs the upper layer to perform beam failure for the BFD-RS set of the primary secondary cell; otherwise, the MAC entity instructs the multiplexing and assembly procedure to generate an Enhanced BFR MAC CE or a Truncated Enhanced BFR MAC CE or trigger an SR.

[0167] In some embodiments, the serving cell not being the primary secondary cell may be replaced by the serving cell being the primary cell.

[0168] In some embodiments, the secondary cell set is not inactive may be replaced with the secondary cell set being active.

[0169] In some embodiments, the stopping of beam failure detection may include the following: the MAC entity or lower layer stops beam failure detection, i.e., the MAC entity or lower layer stops performing or initiating beam failure detection.

[0170] For example, the MAC entity does not compute beam failure instance indications from lower layers, i.e., the MAC entity does not perform or initiate computation of beam failure instance indications from lower layers.

[0171] For example, the lower layers do not perform measurements and / or evaluations on the radio link quality, ie, the lower layers do not perform or initiate measurements and / or evaluations on the radio link quality.

[0172] In some embodiments, the recovery of the beam failure detection may include the following: the MAC entity or lower layer recovers the beam failure detection, i.e., the MAC entity or lower layer recovers from performing or initiating the beam failure detection.

[0173] For example, the MAC entity may take over computing beam failure instance indications from lower layers, i.e., the MAC entity may take over performing or initiating computation of beam failure instance indications from lower layers.

[0174] For example, the lower layers may resume making measurements and / or evaluations on the radio link quality, ie, the lower layers may resume making or initiating measurements and / or evaluations on the radio link quality.

[0175] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0176] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0177] In an embodiment of the present invention, a method for assessing downlink radio link quality is provided, which is applied to a terminal device, and corresponds to the method for assessing downlink radio link quality used in the terminal device described in embodiment 1, but is described from a different angle here. For example, the method is used in the terminal device 102 in Fig. 2 and Fig. 3.

[0178] 5 is a diagram illustrating a method for evaluating downlink radio link quality in embodiment 2 of the present invention. As shown in FIG. 5, the method includes the following steps:

[0179] Step 501: Configure a secondary cell group (SCG); Step 502: Stopping radio link monitoring in a primary secondary cell (PSCell) when the secondary cell pair is deactivated if the secondary cell pair is not indicated by the network as supporting radio link monitoring (RLM); and / or Step 503: If the secondary cell pair is not indicated by the network as supporting beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell, stopping beam failure detection in the primary secondary cell when the secondary cell pair is deactivated; and / or Step 504: If the secondary cell pair is not configured by the network to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, stop TRP-specific beam failure detection in the primary secondary cell when the secondary cell pair is deactivated.

[0180] In some embodiments, after step 501, the method may include at least one of steps 502-504, and when the method includes multiple steps of steps 502-504, there is no limitation on the order of execution of these steps.

[0181] In some embodiments, "TRP-specific" may be replaced with "of a BFD-RS pair" or "associated with a BFD-RS pair."

[0182] In some embodiments, "beam fail" may be replaced with "beam fail recovery" or "beam fail recovery is triggered."

[0183] In step 501, setting up a secondary cell group (SCG) refers to setting up a secondary cell group in a terminal device.

[0184] In some embodiments, the primary secondary cell is a primary secondary cell of a set of secondary cells configured for the terminal device.

[0185] In some embodiments, for the configured secondary cell set, when activation of the secondary cell set is instructed by higher layers, the MAC entity can use at least one of the following secondary cell set activation operations: activate the primary secondary cell; transmit SRS on the primary secondary cell; report CSI on the primary secondary cell; monitor PDCCH on the primary secondary cell; transmit PUCCH on the primary secondary cell; perform random access on the primary secondary cell if triggered; and initialize Bj to 0 for each logical channel associated with the primary secondary cell.

[0186] In some embodiments, for a set of secondary cells to be configured, when a higher layer instructs the deactivation of the set of secondary cells, the MAC entity can perform at least one of the following: deactivate all secondary cells (SCells) of the set of secondary cells to be configured; deactivate the primary secondary cell; and reset the MAC.

[0187] In some embodiments, resetting the MAC may include at least one of the following: stopping all running timers other than the first timer or stopping all running timers; stopping any running random access procedure; clearing the Msg3 buffer; clearing the MSGA buffer; canceling any triggered beam failure recovery (BFR); and resetting the first counter.

[0188] In some embodiments, stopping all running timers other than the first timer or stopping all running timers may include: and / or when the network indicates that the secondary cell pair supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for a primary secondary cell of the secondary cell pair, stopping all other running timers other than a first timer, the first timer including a TA timer (e.g., TA timer) and a beam failure detection timer (e.g., beamFailureDetectionTimer) associated with the primary secondary cell; and / or When the network indicates that the secondary cell pair supports radio link monitoring and / or beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a primary secondary cell of the secondary cell pair, stop all other running timers other than a first timer, where the first timer includes a TA timer (e.g., TA timer) and a beam failure detection timer associated with the primary secondary cell or a beam failure detection timer (e.g., beamFailureDetectionTimer) dedicated to each TRP of the primary secondary cell.

[0189] In some embodiments, the TRP-specific beam failure detection timer may be replaced with a beam failure detection timer associated with the BFD-RS set.

[0190] In some embodiments, configuring a reference signal for beam failure detection dedicated to a TRP may be replaced by configuring multiple (e.g., two) BFD-RS pairs.

[0191] In some embodiments, the cancellation of a triggered beam failure recovery (BFR) may include at least one of the following: canceling the triggered beam failure recovery of the primary secondary cell; canceling the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; not canceling the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; and ceasing beam failure detection of one BFD-RS set of the primary secondary cell.

[0192] For example, if the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a TRP-specific reference signal for beam failure detection is configured for the primary secondary cell of the secondary cell set, do not cancel the triggered beam failure recovery of one BFD-RS set of the primary secondary cell and / or stop beam failure detection of one BFD-RS set of the primary secondary cell.

[0193] For example, if the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection, a TRP-specific reference signal for beam failure detection is configured for the primary secondary cell of the secondary cell set, and beam failure recovery is triggered for only one BFD-RS set of the primary secondary cell, the triggered beam failure recovery of the BFD-RS set of the primary secondary cell is not canceled and / or beam failure detection of the BFD-RS set of the primary secondary cell is stopped.

[0194] In some embodiments, the first counter may be a beam fail indication counter, for example, BFI_COUNTER.

[0195] In some embodiments, resetting the first counter may include: resetting the first counter associated with the primary secondary cell when the secondary cell pair is not configured by the network to support beam failure detection and a TRP-specific reference signal for beam failure detection is not configured; and / or If the network does not configure the secondary cell pair to support beam failure detection and a reference signal for beam failure detection dedicated to TRP is configured, reset the first counter associated with the primary secondary cell or each BFD-RS pair of the primary secondary cell.

[0196] In some embodiments, the stopping of beam failure detection may include the following: the MAC entity or lower layer stops beam failure detection, i.e., the MAC entity or lower layer stops performing or initiating beam failure detection.

[0197] For example, the MAC entity does not compute beam failure instance indications from lower layers, i.e., the MAC entity does not perform or initiate computation of beam failure instance indications from lower layers.

[0198] For example, the lower layers do not perform measurements and / or evaluations on the radio link quality, ie, the lower layers do not perform or initiate measurements and / or evaluations on the radio link quality.

[0199] In some embodiments, the recovery of the beam failure detection may include the following: the MAC entity or lower layer recovers the beam failure detection, i.e., the MAC entity or lower layer recovers from performing or initiating the beam failure detection.

[0200] For example, the MAC entity may take over computing beam failure instance indications from lower layers, i.e., the MAC entity may take over performing or initiating computation of beam failure instance indications from lower layers.

[0201] For example, the lower layers may resume making measurements and / or evaluations on the radio link quality, ie, the lower layers may resume making or initiating measurements and / or evaluations on the radio link quality.

[0202] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0203] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0204] In the embodiments of the present invention, a method for evaluating downlink radio link quality is provided, which is applicable to network equipment and terminal equipment, and corresponds to the method for evaluating downlink radio link quality used in terminal equipment described in embodiment 1 and the method for evaluating downlink radio link quality used in network equipment described in embodiment 6, and duplicated explanations of the same content will be omitted here.

[0205] 6 is a diagram illustrating a method for evaluating downlink radio link quality according to a third embodiment of the present invention, which is applied to a network device and a terminal device. As shown in FIG. 6, the method includes the following steps:

[0206] Step 601: configure a secondary cell group (SCG) for a terminal device; Step 602: Indicating by the network device that the secondary cell pair supports radio link monitoring; Step 603: When the secondary cell set is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); Step 604: Indicating, by the network device, that the secondary cell set supports beam failure detection; Step 605: by the network device, configure a reference signal for cell beam failure detection for the primary secondary cell; Step 606: When the secondary cell pair is deactivated, the terminal device performs beam failure detection of the primary secondary cell; Step 607: by the network device, configure a reference signal for beam failure detection dedicated to the TRP for the primary secondary cell; Step 608: When the secondary cell set is deactivated, the terminal device performs beam failure detection dedicated to the TRP of the primary secondary cell.

[0207] In some embodiments, the method may include at least one set of steps 602-603, steps 604-606, and steps 604, 607-608. When the method includes multiple sets of steps 602-603, steps 604-606, and steps 604, 607-608, the order of execution of these sets is not limited. In each set, i.e., in steps 602-603, steps 604-606, and steps 604, 607-608, the steps may be executed sequentially or in combination, i.e., the order of execution of each step within a set is not limited. For example, in the case of steps 604 and 605, step 604 may be executed first and then step 605, or step 605 may be executed first and then step 604, or the two steps may be executed simultaneously, or may be combined and executed as one step.

[0208] In the embodiment of the present invention, the specific implementation of steps 601-608 can be referred to the description in the first embodiment, and the detailed description thereof will be omitted here.

[0209] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0210] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0211] In an embodiment of the present invention, a method for evaluating downlink radio link quality is provided, and the method is applied to a terminal device, for example, the method is used in the terminal device 102 in FIG.

[0212] 7 is a diagram illustrating a method for evaluating downlink radio link quality in accordance with a fourth embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:

[0213] Step 701: Configure a secondary cell group (SCG); Step 702: If the network indicates that the secondary cell pair or a secondary cell (SCell) of the secondary cell pair supports radio link monitoring (RLM), perform radio link monitoring on the secondary cell when the secondary cell pair is deactivated; and / or Step 703: When the secondary cell pair or a secondary cell of the secondary cell pair is indicated by the network to support beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, perform beam failure detection for the secondary cell when the secondary cell pair is deactivated; and / or Step 704: If the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, perform TRP-specific beam failure detection for the secondary cell when the secondary cell set is deactivated.

[0214] In an embodiment of the present invention, after step 701, the method may include at least one step among steps 702-704, and when the method includes multiple steps among steps 702-704, there is no limitation on the execution order of these steps.

[0215] 8 is another diagram illustrating a method for evaluating downlink radio link quality in embodiment 4 of the present invention. As shown in FIG. 8, the method includes the following steps:

[0216] Step 801: Configure a secondary cell group (SCG); Step 802: If the secondary cell pair or a secondary cell (SCell) of the secondary cell pair is not indicated by the network as supporting radio link monitoring (RLM), stop radio link monitoring on the secondary cell when the secondary cell pair is deactivated; and / or Step 803: If the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection, or if a reference signal for cell beam failure detection is not configured for the secondary cell, stopping beam failure detection in the secondary cell when the secondary cell pair is deactivated; and / or Step 804: If the network does not indicate that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection, or if a reference signal for TRP-specific beam failure detection is not configured for the secondary cell, stop TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

[0217] In an embodiment of the present invention, after step 801, the method may include at least one step among steps 802-804, and when the method includes multiple steps among steps 802-804, there is no limitation on the execution order of these steps.

[0218] The differences from Examples 1-3 are as follows: in Example 4, radio link monitoring and / or beam failure detection is performed in the secondary cell; other contents are the same as in Examples 1-3; and for the specific contents of each of the above steps, reference can be made to the relevant descriptions in Examples 1-3, and detailed explanations thereof will be omitted here.

[0219] As can be seen from the above embodiments, if the network instructs the SCG to support radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Therefore, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0220] In an embodiment of the present invention, a method for evaluating downlink radio link quality is provided, and the method is applied to a terminal device, for example, the method is used in the terminal device 102 in FIG.

[0221] 9 is a diagram illustrating a method for evaluating downlink radio link quality in accordance with a fifth embodiment of the present invention. As shown in FIG. 9, the method includes the following steps:

[0222] Step 901: For each serving cell for which beam failure detection is configured, when the first counter is greater than or equal to a predetermined threshold, the MAC entity indicates to the upper layer a beam failure of the primary secondary cell if the serving cell is a primary secondary cell, the secondary cell pair is inactive, and the secondary cell pair has not indicated to the upper layer a beam failure of the primary secondary cell since being deactivated.

[0223] For example, the first counter is BFI_COUNTER and the predetermined threshold is beamFailureInstanceMaxCount.

[0224] In some embodiments, as shown in FIG. 9, the method may further include:

[0225] Step 902: If the network does not set the first parameter, for example, the value of bfd-and-RLM is “true”, or if an instruction is received from the MAC layer, the terminal device instructs the lower layer to stop beam failure detection in the primary secondary cell.

[0226] For example, the lower layer is a MAC layer or a physical layer or an RF chain.

[0227] In some embodiments, as shown in FIG. 9, the method may further include:

[0228] Step 903: The MAC entity indicates a beam failure of the primary secondary cell to the lower layer, or instructs the lower layer to stop beam failure detection on the primary secondary cell.

[0229] For example, the lower layer is the physical layer or the RF chain.

[0230] For the specific content of each step described above, please refer to the relevant description in the first embodiment, and detailed description thereof will be omitted here. [Example]

[0231] In the embodiment of the present invention, a method for evaluating downlink radio link quality is provided, which is applied to a network device, and corresponds to the method described in the first embodiment, and the duplicated description of the same content will be omitted here.

[0232] 10 is a diagram illustrating a method for evaluating downlink radio link quality in accordance with a sixth embodiment of the present invention. As shown in FIG. 10, the method includes the following steps:

[0233] Step 1001: Establish a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); and / or If the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or If the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection for the primary secondary cell.

[0234] For specific details, please refer to the relevant description in the first embodiment, and detailed description thereof will be omitted here.

[0235] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0236] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0237] In an embodiment of the present invention, a method for evaluating downlink radio link quality is provided, which is applied to a network device, and corresponds to the method described in the second embodiment, and the duplicated description of the same content will be omitted here.

[0238] 11 is a diagram illustrating a method for evaluating downlink radio link quality in accordance with a seventh embodiment of the present invention. As shown in FIG. 11, the method includes the following steps:

[0239] Step 1101: configure a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring on the primary secondary cell (PSCell); and / or If the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or If the secondary cell set is not configured to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell set is deactivated.

[0240] For specific details, please refer to the related description in Example 2, and detailed explanations thereof will be omitted here.

[0241] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0242] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0243] In an embodiment of the present invention, a method for evaluating downlink radio link quality is provided, which is applied to a network device, and corresponds to the method described in the fourth embodiment, and the duplicated description of the same content will be omitted here.

[0244] 12 is a diagram illustrating a method for evaluating downlink radio link quality in embodiment 8 of the present invention. As shown in FIG. 12, the method includes the following steps:

[0245] Step 1201: configure a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the secondary cell; and / or If the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection for the secondary cell.

[0246] 13 is another diagram illustrating a method for evaluating downlink radio link quality in embodiment 8 of the present invention. As shown in FIG. 13, the method includes the following steps:

[0247] Step 1301: configure a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, the terminal device stops beam failure detection in the secondary cell when the secondary cell pair is deactivated; and / or If the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

[0248] For specific details, please refer to the related description in Example 4, and detailed explanations thereof will be omitted here.

[0249] As can be seen from the above embodiments, if the network instructs the SCG to support radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Therefore, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0250] In an embodiment of the present invention, a downlink radio link quality assessment device is provided, which is applied to a terminal device. The principle of the problem solved by the device is the same as that of the method of embodiment 1, so that the specific implementation thereof can refer to the implementation of the method of embodiment 1, and the same or related redundant description will be omitted here.

[0251] 14 is a diagram illustrating an apparatus for evaluating downlink radio link quality according to a ninth embodiment of the present invention. As shown in FIG. 14, an apparatus 1400 includes:

[0252] First setting unit 1401: sets up a secondary cell group (SCG); Wherein, if the secondary cell pair is instructed by the network to support radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); and / or If the network indicates that the secondary cell pair supports beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or If the network indicates that the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection for the primary secondary cell.

[0253] For specific details, please refer to the relevant description in the first embodiment, and detailed description thereof will be omitted here.

[0254] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0255] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0256] In an embodiment of the present invention, a downlink radio link quality evaluation device is provided, which is applied to a terminal device. The principle of the problem solved by the device is the same as that of the method of embodiment 2, so that the specific implementation thereof can refer to the implementation of the method of embodiment 2, and the same or related redundant description will be omitted here.

[0257] 15 is a diagram illustrating an apparatus for evaluating downlink radio link quality according to a tenth embodiment of the present invention. As shown in FIG. 15, an apparatus 1500 includes:

[0258] A second setting unit 1501: sets a secondary cell group (SCG); Wherein, if the secondary cell pair is not indicated by the network as supporting radio link monitoring (RLM), the terminal device stops radio link monitoring on the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or If the secondary cell pair is not indicated by the network as supporting beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or If the secondary cell set is not configured by the network to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell set is deactivated.

[0259] For specific details, please refer to the related description in Example 2, and detailed explanations thereof will be omitted here.

[0260] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0261] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0262] In an embodiment of the present invention, a downlink radio link quality evaluation device is provided, which is applied to a terminal device. The principle of the problem solved by the device is the same as that of the method of embodiment 4, so that the specific implementation thereof can refer to the implementation of the method of embodiment 4, and the same or related redundant description will be omitted here.

[0263] 16 is a diagram illustrating an apparatus for evaluating downlink radio link quality according to an eleventh embodiment of the present invention. As shown in FIG. 16, an apparatus 1600 includes:

[0264] A third setting unit 1601: sets a secondary cell group (SCG); Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair is instructed by the network to support radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the network indicates that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the secondary cell; and / or If the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection of the secondary cell.

[0265] 17 is another diagram illustrating an apparatus 1700 for evaluating downlink radio link quality according to embodiment 11 of the present invention. As shown in FIG. 17, the apparatus 1700 includes:

[0266] A fourth setting unit 1701: sets a secondary cell group (SCG); Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair is not indicated by the network as supporting radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection, or if a reference signal for cell beam failure detection is not configured for the secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the secondary cell; and / or If the network does not indicate that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection, or if a reference signal for TRP-specific beam failure detection is not configured for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

[0267] For specific details, please refer to the related description in Example 4, and detailed explanations thereof will be omitted here.

[0268] As can be seen from the above embodiments, if the network instructs the SCG to support radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Therefore, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0269] In an embodiment of the present invention, a downlink radio link quality evaluation device is provided, and the device is applied to a terminal device. The principle of the problem solved by the device is the same as that of the method of embodiment 5, so that the specific implementation can refer to the implementation of the method of embodiment 5, and the same or related redundant description will be omitted here.

[0270] Among them, for each serving cell for which beam failure detection is set, when the first counter is greater than or equal to a predetermined threshold, the serving cell is a primary secondary cell, the secondary cell pair is inactive, and the MAC entity has not indicated beam failure of the primary secondary cell to the upper layer since the secondary cell pair was deactivated, the MAC entity indicates beam failure of the primary secondary cell to the upper layer. [Example]

[0271] In an embodiment of the present invention, an apparatus for evaluating downlink radio link quality is provided, which is applied to network equipment, and corresponds to the method described in the sixth embodiment, and redundant description of the same content will be omitted here.

[0272] 18 is a diagram illustrating an apparatus 1800 for evaluating downlink radio link quality according to a thirteenth embodiment of the present invention. As shown in FIG. 18, the apparatus 1800 includes:

[0273] A fifth setting unit 1801: sets a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); and / or If the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or If the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection for the primary secondary cell.

[0274] For specific details, please refer to the related description in Example 6, and detailed explanations thereof will be omitted here.

[0275] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0276] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0277] In an embodiment of the present invention, an apparatus for evaluating downlink radio link quality is provided, which is applied to network equipment, and corresponds to the method described in the seventh embodiment, and redundant description of the same content will be omitted here.

[0278] 19 is a diagram illustrating an apparatus 1900 for evaluating downlink radio link quality according to a fourteenth embodiment of the present invention. As shown in FIG. 19, the apparatus 1900 includes:

[0279] A sixth setting unit 1901: sets a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring on the primary secondary cell (PSCell); and / or If the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or If the secondary cell set is not configured to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell set is deactivated.

[0280] For specific details, please refer to the related description in Example 7, and detailed explanations thereof will be omitted here.

[0281] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0282] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience. [Example]

[0283] In an embodiment of the present invention, an apparatus for evaluating downlink radio link quality is provided, which is applied to network equipment, and corresponds to the method described in the eighth embodiment, and redundant description of the same content will be omitted here.

[0284] 20 is a diagram illustrating an apparatus for evaluating downlink radio link quality according to a fifteenth embodiment of the present invention. As shown in FIG. 12, the apparatus 2000 includes:

[0285] A seventh setting unit 2001: setting a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the secondary cell; and / or If the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the secondary cell, when the secondary cell set is deactivated, the terminal device performs TRP-specific beam failure detection for the secondary cell.

[0286] 21 is another diagram illustrating an apparatus for evaluating downlink radio link quality according to embodiment 15 of the present invention. As shown in FIG. 21, an apparatus 2100 includes:

[0287] An eighth setting unit 2101: setting a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, the terminal device stops beam failure detection in the secondary cell when the secondary cell pair is deactivated; and / or If the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

[0288] For specific details, please refer to the relevant description in Example 8, and detailed explanations thereof will be omitted here.

[0289] As can be seen from the above embodiments, if the network instructs the SCG to support radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Therefore, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0290] In an embodiment of the present invention, a terminal device is provided, and the terminal device includes the device for evaluating downlink radio link quality according to embodiment 9, embodiment 10, embodiment 11, or embodiment 12.

[0291] 22 is a block diagram showing a system configuration of a terminal device according to a sixteenth embodiment of the present invention. As shown in Fig. 22, a terminal device 2200 may include a processor 2210 and a memory 2220, and the memory 2220 is connected to the processor 2210. Note that this figure is merely an example, and other types of configurations may be used to supplement or replace the configurations to realize telecommunication functions or other functions.

[0292] In one implementation, the functionality of the downlink radio link quality evaluator can be integrated into the processor 2210 .

[0293] Corresponding to Example 9, the processor 2210 may be configured as follows: configure a secondary cell group (SCG); perform radio link monitoring on a primary secondary cell (PSCell) when the secondary cell group is deactivated if the network indicates that the secondary cell group supports radio link monitoring (RLM); and / or perform beam failure detection of the primary secondary cell when the secondary cell group is deactivated if the network indicates that the secondary cell group supports beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell; and / or perform TRP-specific beam failure detection of the primary secondary cell when the secondary cell group is deactivated if the network indicates that the secondary cell group supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell.

[0294] Corresponding to Example 10, the processor 2210 may be configured as follows: configure a secondary cell group (SCG); stop radio link monitoring in a primary secondary cell (PSCell) when the secondary cell group is deactivated if the network does not instruct the secondary cell group to support radio link monitoring (RLM); and / or stop beam failure detection in a primary secondary cell when the secondary cell group is deactivated if the network does not instruct the secondary cell group to support beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell; and / or stop TRP-specific beam failure detection in a primary secondary cell when the secondary cell group is deactivated if the network does not configure the secondary cell group to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell.

[0295] Corresponding to Example 11, the processor 2210 may be configured to: configure a secondary cell group (SCG); and, if the network indicates that the secondary cell group or a secondary cell (SCell) of the secondary cell group supports radio link monitoring (RLM), perform radio link monitoring on the secondary cell when the secondary cell group is deactivated; and / or, if the network indicates that the secondary cell group or a secondary cell of the secondary cell group supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, perform beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or, if the network indicates that the secondary cell group or a secondary cell of the secondary cell group supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, perform TRP-specific beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or The processor 2210 may be configured to: configure a secondary cell group (SCG); stop radio link monitoring on the secondary cell when the secondary cell group is deactivated if the network does not indicate that the secondary cell group or a secondary cell (SCell) of the secondary cell group supports radio link monitoring (RLM); and / or stop beam failure detection on the secondary cell when the secondary cell group is deactivated if the network does not indicate that the secondary cell group or a secondary cell of the secondary cell group supports beam failure detection or a reference signal for cell beam failure detection is not configured for the secondary cell; and / or stop TRP-specific beam failure detection on the secondary cell when the secondary cell group is deactivated if the network does not indicate that the secondary cell group or a secondary cell of the secondary cell group supports beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the secondary cell.

[0296] Corresponding to Example 12, processor 2210 may be configured as follows: for each serving cell for which beam failure detection is set, when the first counter is greater than or equal to a predetermined threshold, the MAC entity indicates beam failure of the primary secondary cell to the upper layer if the serving cell is a primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated beam failure of the primary secondary cell to the upper layer since it was deactivated.

[0297] In another implementation manner, the downlink radio link quality evaluation device may be configured independently of the processor 2210. For example, the downlink radio link quality evaluation device may be configured as a chip connected to the processor 2210, and the function of the downlink radio link quality evaluation device may be realized under the control of the processor 2210.

[0298] As shown in Fig. 22, the terminal device 2200 may further include a communication module 2230, an input unit 2240, a display 2250, a power supply 2260, etc. It is not necessary for the terminal device 2200 to include all of the components shown in Fig. 22. The terminal device 2200 may also include components not shown in Fig. 22, and for this, reference can be made to the related art.

[0299] As shown in FIG. 22, the processor 2210, which may be referred to as a controller or operational control, may include a microprocessor or other processing and / or logic device, and the processor 2210 can receive inputs and control the operation of each component of the terminal device 2200.

[0300] The memory 2220 may be, for example, one or more of a buffer, flash memory, HDD, removable medium, volatile memory, non-volatile memory, or other suitable device, and can store various data and programs for information processing. The processor 2210 can execute the programs stored in the memory 2220 to store and process information. The functions of the other components are the same as those of conventional components, and therefore detailed descriptions thereof are omitted here. Each component of the terminal device 2200 may be realized by dedicated hardware, firmware, software, or a combination thereof, all of which are within the scope of the present invention.

[0301] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0302] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience.

[0303] Furthermore, if the network instructs that the SCG supports radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0304] In an embodiment of the present invention, a network device is provided, which includes the device for evaluating downlink radio link quality in embodiment 13, 14 or 15.

[0305] 23 is a block diagram showing a system configuration of a network device according to a seventeenth embodiment of the present invention. As shown in Fig. 23, a network device 2300 may include a processor 2310 and a memory 2320, and the memory 2320 is connected to the processor 2310. The memory 2320 can store various data and can also store an information processing program 2330, and can execute the program 2330 under the control of the processor 2310 to receive various information transmitted by terminal devices and transmit various information to terminal devices.

[0306] In one implementation, the functionality of the downlink radio link quality estimator can be integrated into the processor 2310 .

[0307] Corresponding to Example 13, the processor 2310 may be configured as follows: if a secondary cell group (SCG) is configured for a terminal device, and the secondary cell group indicates that it supports radio link monitoring (RLM), when the secondary cell group is deactivated, the terminal device performs radio link monitoring on a primary secondary cell (PSCell); and / or if the secondary cell group indicates that it supports beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, when the secondary cell group is deactivated, the terminal device performs beam failure detection of the primary secondary cell; and / or if the secondary cell group indicates that it supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, when the secondary cell group is deactivated, the terminal device performs TRP-specific beam failure detection of the primary secondary cell.

[0308] Corresponding to Example 14, the processor 2310 may be configured as follows: if a secondary cell group (SCG) is configured for a terminal device and the secondary cell group does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the primary secondary cell (PSCell) when the secondary cell group is deactivated; and / or if the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, the terminal device stops beam failure detection in the primary secondary cell when the secondary cell group is deactivated; and / or if the secondary cell group is not configured to support beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the primary secondary cell, the terminal device stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell group is deactivated.

[0309] Corresponding to Example 15, the processor 2310 may be configured to: configure a secondary cell group (SCG) for a terminal device, and if the secondary cell group or a secondary cell (SCell) of the secondary cell group indicates that it supports radio link monitoring (RLM), the terminal device performs radio link monitoring on the secondary cell when the secondary cell group is deactivated; and / or if the secondary cell group or a secondary cell of the secondary cell group indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the secondary cell, the terminal device performs beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or if the secondary cell group or a secondary cell of the secondary cell group indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device performs TRP-specific beam failure detection on the secondary cell when the secondary cell group is deactivated; and / or The processor 2310 may be configured as follows: to configure a secondary cell group (SCG) for a terminal device, and if the secondary cell group or a secondary cell (SCell) of the secondary cell group does not indicate that it supports radio link monitoring (RLM), the terminal device stops radio link monitoring in the secondary cell when the secondary cell group is deactivated; and / or if the secondary cell group or a secondary cell of the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, the terminal device stops beam failure detection in the secondary cell when the secondary cell group is deactivated; and / or if the secondary cell group or a secondary cell of the secondary cell group does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal device stops TRP-specific beam failure detection in the secondary cell when the secondary cell group is deactivated.

[0310] In another implementation manner, the downlink radio link quality evaluation device may be configured independently of the processor 2310, for example, the downlink radio link quality evaluation device may be configured as a chip connected to the processor 2310, and the function of the downlink radio link quality evaluation device may be realized under the control of the processor 2310.

[0311] 23, the network device 2300 may include a transceiver 2340, an antenna 2350, etc., and the functions of these components are the same as those of conventional components, so detailed description thereof will be omitted here. Note that the network device 2300 does not need to include all the components shown in Fig. 23. The network device 2300 may also include components not shown in Fig. 23, but reference can be made to the prior art for this.

[0312] As can be seen from the above embodiment, if the network indicates that an SCG supports beam failure detection and a reference signal for cell beam failure detection is configured for a PSCell, beam failure detection of the PSCell is performed when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform cell-level beam failure detection, thereby evaluating beam quality, and the terminal device can communicate using a beam with good radio link quality to ensure communication quality.

[0313] Furthermore, if the network indicates that the SCG supports beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a PSCell, the SCG performs beam failure detection dedicated to the TRP of the PSCell when the SCG is deactivated. Thus, if a beam failure occurs in only one TRP of a PSCell and the other TRP is still available, the terminal device does not stop beam failure detection and initiate a random access procedure when the SCG is deactivated, thereby avoiding increased energy consumption and improving user experience.

[0314] Furthermore, if the network instructs that the SCG supports radio link monitoring and / or beam failure detection of the secondary cell, the SCG performs radio link monitoring and / or beam failure detection of the secondary cell when the SCG is deactivated. Thus, when the SCG is deactivated, the terminal device can perform radio link monitoring and / or beam failure detection of the secondary cell, thereby evaluating the radio link and / or beam quality, and thereby the terminal device can communicate using a radio link and / or beam with good quality, thereby ensuring communication quality. [Example]

[0315] In an embodiment of the present invention, a communication system is provided, which includes the terminal device according to embodiment 16 and / or the network device according to embodiment 17. For specific details, please refer to the descriptions in embodiment 16 and embodiment 17.

[0316] For example, the configuration of the communication system can be seen in FIG. 2. As shown in FIG. 2, the communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 may be the same as the terminal device described in Example 16, and / or the network device 101 may be the same as the network device described in Example 17, but redundant description will be omitted here.

[0317] The above-described devices and methods may be realized by software or hardware, or by a combination of hardware and software. The present invention further relates to a computer-readable program as described below, which, when executed by a logic component, causes the logic component to realize the above-described devices or components, or to perform each of the above-described methods or steps. The logic component may be, for example, an FPGA (Field Programmable Gate Array), a microprocessor, or a processing unit used in a computer. The present invention also relates to a storage medium, such as a hard disk, magnetic disk, optical hard disk, DVD, or flash memory, that stores the above-described program.

[0318] Furthermore, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be implemented as a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic component, a discrete gate or transistor logic component, a discrete hardware assembly, or any other suitable combination for performing the functions described herein. Also, one or more combinations of the functional blocks illustrated in the figures and / or one or more combinations of the functional blocks may be further implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors communicatively coupled with a DSP, or any other configuration.

[0319] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and any modifications to the present invention that do not depart from the spirit of the present invention fall within the technical scope of the present invention.

[0320] Furthermore, the following additional notes will be added to the above-mentioned examples.

[0321] (Appendix 1) (Appendix 1) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a terminal device, The apparatus includes a first setting unit, which sets a secondary cell group (SCG); Wherein, if the secondary cell pair is configured by the network to support radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the primary secondary cell (PSCell); and / or If the secondary cell pair is configured by the network to support beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or When the secondary cell pair is configured by the network to support beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal equipment performs TRP-specific beam failure detection of the primary secondary cell.

[0322] (Appendix 2) 10. The apparatus of claim 1, An apparatus that, by a common setting or a separate setting, supports radio link monitoring when the secondary cell set is deactivated or indicates whether radio link monitoring is supported when the secondary cell set is deactivated, and / or supports beam failure detection when the secondary cell set is deactivated or indicates whether beam failure detection is supported when the secondary cell set is deactivated.

[0323] (Appendix 3) 10. The apparatus of claim 2, An apparatus, wherein the common setting, when used to set deactivation of an SCG, instructs a terminal device to perform radio link monitoring and / or beam failure detection, or instructs whether the terminal device should perform radio link monitoring and / or beam failure detection, the beam failure detection including cell beam failure detection or TRP-specific beam failure detection.

[0324] (Appendix 4) 10. The apparatus of claim 2, The single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell, or instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device whether to perform radio link monitoring on the primary secondary cell or instructing the terminal device to perform radio link monitoring on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell, or instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell, or instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell; and An apparatus that, when used to set the deactivation of the secondary cell set, instructs the terminal device whether to perform TRP-specific beam failure detection on the primary secondary cell, or instructs the terminal device to perform TRP-specific beam failure detection on the primary secondary cell.

[0325] (Appendix 5) 5. The device according to any one of claims 2-4, The device, wherein the configuration indicating whether or not radio link monitoring (RLM) and / or beam failure detection is supported is included in a cell group configuration (CellGroupConfig) IE.

[0326] (Appendix 6) 6. The apparatus according to any one of claims 1 to 5, A device, wherein the setting indicating support for radio link monitoring (RLM) and beam failure detection is BOOLEAN data or ENUMERATED data.

[0327] (Appendix 7) 10. The apparatus of claim 1, For the secondary cell set to be configured, when activation of the secondary cell set is indicated by an upper layer, a MAC entity can use at least one of the following secondary cell set activation operations: Primary secondary cell activation; SRS transmission on primary secondary cells; CSI reporting on primary secondary cells; PDCCH monitoring on primary secondary cells; PUCCH transmission on primary secondary cell; When triggered, performing random access on the primary secondary cell; and The apparatus is configured to initialize Bj of each logical channel associated with the primary secondary cell to 0.

[0328] (Appendix 8) 10. The apparatus of claim 1, For the configured secondary cell set, when deactivation of the secondary cell set is indicated by higher layers, a MAC entity can perform at least one of the following: deactivating all secondary cells (SCells) of the configured secondary cell set; Deactivation of primary secondary cells; and A reset of the MAC device.

[0329] (Appendix 9) 9. The apparatus of claim 8, The MAC reset includes at least one of the following: Stopping all running timers other than the first timer or stopping all running timers; Stopping a running random access procedure; Clear Msg3 buffer; Clear MSGA buffer; Cancellation of a triggered Beam Failure Recovery (BFR); and A device that resets a first counter.

[0330] (Appendix 10) 10. The apparatus of claim 9, Stopping all running timers other than the first timer or stopping all running timers includes: and / or when the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for a primary secondary cell of the secondary cell set, stopping all other running timers other than a first timer, the first timer including a TA timer and a beam failure detection timer associated with the primary secondary cell; and / or An apparatus, wherein when the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a primary secondary cell of the secondary cell set, the apparatus stops all running timers other than a first timer, the first timer including a TA timer and a beam failure detection timer associated with the primary secondary cell or a beam failure detection timer dedicated to each TRP of the primary secondary cell.

[0331] (Appendix 11) 10. The apparatus of claim 9, Cancellation of triggered beam failure recovery includes at least one of the following: Cancellation of triggered beam failure recovery of primary secondary cells; Cancellation of triggered beam failure recovery of one BFD-RS pair of primary-secondary cells; Not canceling the triggered beam failure recovery of one BFD-RS pair of the primary-secondary cell; and A device that detects beam failure of one BFD-RS pair of a primary secondary cell.

[0332] (Appendix 12) 12. The apparatus of claim 9 or 11, When the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a TRP-specific reference signal for beam failure detection is configured for a primary secondary cell of the secondary cell set, the apparatus does not cancel a triggered beam failure recovery of one BFD-RS set of the primary secondary cell and / or stops beam failure detection of one BFD-RS set of the primary secondary cell.

[0333] (Appendix 13) 12. The apparatus of claim 9 or 11, When the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection, a TRP-specific reference signal for beam failure detection is configured for a primary secondary cell of the secondary cell set, and beam failure recovery of only one BFD-RS set of the primary secondary cell is triggered, the device does not cancel the triggered beam failure recovery of the BFD-RS set of the primary secondary cell and / or stops beam failure detection of the BFD-RS set of the primary secondary cell.

[0334] (Appendix 14) 10. The apparatus of claim 1, Performing radio link monitoring on the primary secondary cell (PSCell) includes: An apparatus, wherein when configured by a network to perform radio link monitoring in an inactive primary secondary cell, the terminal equipment performs radio link monitoring in a BWP other than the active DL BWP.

[0335] (Appendix 15) 15. The apparatus of claim 14, A device in which, when configured by a network to perform radio link monitoring on an inactive primary secondary cell, and when a radio link failure is not detected on the primary secondary cell or the secondary cell set in which the primary secondary cell is located, the terminal device performs radio link monitoring on a BWP other than an active DL BWP.

[0336] (Appendix 16) 10. The apparatus of claim 1, When a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, performing TRP-specific beam failure detection of the primary secondary cell when the secondary cell set is deactivated includes at least one of the following: During the deactivation period of the secondary cell pair, when a beam failure of one BFD-RS pair in the primary secondary cell is detected, the terminal device stops detecting a beam failure of the BFD-RS pair; During the deactivation period of the secondary cell set, when a reference signal of one BFD-RS set of the primary secondary cell is reconfigured, the terminal device recovers beam failure detection of the BFD-RS set; During the deactivation period of the secondary cell pair, when beam failure recovery of two BFD-RS pairs in the primary secondary cell has all been triggered and not completed successfully, if the MAC layer has not indicated a beam failure to an upper layer since the secondary cell pair was deactivated, the MAC layer indicates a beam failure to an upper layer; and When receiving an activation command for the secondary cell set from the network, if beam failures of all two BFD-RS sets in the primary secondary cell are detected, the terminal equipment performs a random access procedure for the secondary cell set.

[0337] (Appendix 17) 10. The apparatus of claim 1, Performing beam failure detection of the primary secondary cell includes: An apparatus in which, for each serving cell for which beam failure detection is set, when a first counter is greater than or equal to a predetermined threshold, a MAC entity indicates beam failure of the primary secondary cell to a higher layer if the serving cell is the primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated beam failure of the primary secondary cell to a higher layer since it was deactivated.

[0338] (Appendix 18) 18. The apparatus of claim 17, Performing beam failure detection of the primary secondary cell further includes: A device in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal equipment instructs lower layers to stop beam failure detection in the primary secondary cell.

[0339] (Appendix 19) 19. The apparatus of claim 18, further comprising: The device, wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0340] (Appendix 20) 18. The apparatus of claim 17, Performing beam failure detection of the primary secondary cell further includes: An apparatus in which the MAC entity instructs a lower layer of beam failure of the primary secondary cell, or instructs a lower layer to stop beam failure detection in the primary secondary cell.

[0341] (Appendix 21) 21. The apparatus of claim 20, The device, wherein the lower layer is a physical layer or an RF chain.

[0342] (Appendix 22) 17. The apparatus of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of two BFD-RS pairs of a special cell has been triggered and not completed successfully, An apparatus in which a MAC entity instructs a higher layer of beam failure of the primary secondary cell when the serving cell is the primary secondary cell, the secondary cell set in which the special cell is located is inactive, and the secondary cell set has not instructed a higher layer of beam failure of the primary secondary cell since it was deactivated.

[0343] (Appendix 23) 23. The apparatus of claim 22, further comprising: Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: A device in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal equipment instructs lower layers to stop beam failure detection in the primary secondary cell.

[0344] (Appendix 24) 24. The apparatus of claim 23, The device, wherein the lower layer is a MAC layer or a physical layer or an RF chain.

[0345] (Appendix 25) 24. The apparatus of claim 23, Performing beam failure detection of the primary secondary cell further includes: An apparatus in which the MAC entity instructs a lower layer of beam failure of the primary secondary cell, or instructs a lower layer to stop beam failure detection in the primary secondary cell.

[0346] (Appendix 26) 26. The apparatus of claim 25, The device, wherein the lower layer is a physical layer or an RF chain.

[0347] (Appendix 27) 23. The apparatus of claim 22, further comprising: Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of two BFD-RS pairs of a special cell has been triggered and not completed successfully, When the serving cell is not the primary secondary cell, or the secondary cell set in which the special cell is located is not inactive, or the secondary cell set has been deactivated and has already instructed a higher layer of beam failure of the primary secondary cell, the MAC entity initiates a random access procedure in the primary secondary cell.

[0348] (Appendix 28) 17. The apparatus of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is the primary secondary cell and the secondary cell set is inactive, a MAC entity indicates to a higher layer a beam failure of the BFD-RS set of the primary secondary cell.

[0349] (Appendix 29) 29. The apparatus of claim 28, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: When receiving the instruction, the terminal device instructs lower layers to stop beam failure detection for the BFD-RS set in the primary secondary cell.

[0350] (Appendix 30) 29. The apparatus of claim 29, The device, wherein the lower layer is a MAC layer or a physical layer or an RF chain.

[0351] (Appendix 31) 29. The apparatus of claim 28, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is the primary secondary cell and the secondary cell set is inactive, a MAC entity instructs a lower layer to detect beam failure of the BFD-RS set of the primary secondary cell, or instructs the primary secondary cell to stop detecting beam failure of the BFD-RS set at the primary secondary cell.

[0352] (Appendix 32) 32. The apparatus of claim 31, The device, wherein the lower layer is a physical layer or an RF chain.

[0353] (Appendix 33) 17. The apparatus of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is not the primary secondary cell or the secondary cell set is not inactive, the MAC entity instructs a multiplexing and assembly procedure to generate an Enhanced BFR MAC CE or trigger an SR.

[0354] (Appendix 34) 16. The apparatus of any one of Supplementary Notes 16, 18, 20, 23, 25, 29, and 31, comprising: The beam failure detection termination includes: The MAC entity or lower layer stops beam failure detection, and / or The beam failure detection recovery includes: The MAC entity or lower layer recovers from beam failure detection, the device.

[0355] (Appendix 35) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a terminal device, The apparatus includes a second configuration unit, which configures a secondary cell group (SCG). Wherein, if the secondary cell pair is not instructed by the network to support radio link monitoring (RLM), the terminal device stops radio link monitoring on the primary secondary cell (PSCell) when the secondary cell pair is deactivated; and / or If the secondary cell pair is not indicated by the network as supporting beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or If the secondary cell pair is not configured by the network to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal equipment stops TRP-specific beam failure detection in the primary secondary cell.

[0356] (Appendix 36) 36. The apparatus of claim 35, For the secondary cell set to be configured, when activation of the secondary cell set is indicated by an upper layer, a MAC entity can use at least one of the following secondary cell set activation operations: Primary secondary cell activation; SRS transmission on primary secondary cells; CSI reporting on primary secondary cells; PDCCH monitoring on primary secondary cells; PUCCH transmission on primary secondary cell; When triggered, performing random access on the primary secondary cell; and The apparatus is configured to initialize Bj of each logical channel associated with the primary secondary cell to 0.

[0357] (Appendix 37) 36. The apparatus of claim 35, For the configured secondary cell set, when deactivation of the secondary cell set is indicated by higher layers, a MAC entity can perform at least one of the following: deactivating all secondary cells (SCells) of the configured secondary cell set; Deactivation of primary secondary cells; and A reset of the MAC device.

[0358] (Appendix 38) 38. The apparatus of claim 37, The MAC reset includes at least one of the following: Stopping all running timers other than the first timer or stopping all running timers; Stopping a running random access procedure; Clear Msg3 buffer; Clear MSGA buffer; Cancellation of a triggered Beam Failure Recovery (BFR); and A device that resets a first counter.

[0359] (Appendix 39) 39. The apparatus of claim 38, The resetting of the first counter includes: resetting the first counter associated with the primary secondary cell when the secondary cell set is not configured by the network to support beam failure detection and a TRP-specific reference signal for beam failure detection is not configured; and / or A device that resets the first counter associated with the primary secondary cell or each BFD-RS pair of the primary secondary cell when the secondary cell pair is not configured by the network to support beam failure detection and a reference signal for beam failure detection dedicated to TRP is configured.

[0360] (Appendix 40) 40. The apparatus of any one of clauses 35-39, comprising: The stopping of the beam failure detection includes: the MAC entity or a lower layer stopping the beam failure detection; and / or The recovery of the beam failure detection includes the following: the MAC entity or lower layer recovers the beam failure detection, the device.

[0361] (Appendix 41) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a terminal device, The apparatus includes a third setting unit, which sets a secondary cell group (SCG); Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair is instructed by the network to support radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the network indicates that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection on the secondary cell; and / or When the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell, when the secondary cell set is deactivated, the terminal equipment performs TRP-specific beam failure detection of the secondary cell.

[0362] (Appendix 42) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a terminal device, The apparatus includes a fourth setting unit, which sets a secondary cell group (SCG); Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair is not instructed by the network to support radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the network does not indicate that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection, or if a reference signal for cell beam failure detection is not configured for the secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the secondary cell; and / or If the network does not indicate that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection, or if a reference signal for TRP-specific beam failure detection is not configured for the secondary cell, when the secondary cell set is deactivated, the terminal equipment stops TRP-specific beam failure detection in the secondary cell.

[0363] (Appendix 43) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a terminal device, Among them, for each serving cell for which beam failure detection is set, when a first counter is greater than or equal to a predetermined threshold, the MAC entity instructs an upper layer of beam failure of the primary secondary cell if the serving cell is a primary secondary cell, the secondary cell pair is inactive, and the secondary cell pair has not been instructed to an upper layer of beam failure of the primary secondary cell since it was deactivated.

[0364] (Appendix 44) 44. The apparatus of claim 43, A device in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal equipment instructs lower layers to stop beam failure detection in the primary secondary cell.

[0365] (Appendix 45) 45. The apparatus of claim 44, The device, wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0366] (Appendix 46) 44. The apparatus of claim 43, The MAC entity further instructs a lower layer of beam failure of the primary secondary cell or instructs a lower layer to stop beam failure detection in the primary secondary cell.

[0367] (Appendix 47) 47. The apparatus of claim 46, further comprising: The device, wherein the lower layer is a physical layer or an RF chain.

[0368] (Appendix 48) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a network device, The apparatus includes a fifth setting unit, which sets a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on a primary secondary cell (PSCell); and / or If the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or If the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal equipment performs TRP-specific beam failure detection for the primary secondary cell.

[0369] (Appendix 49) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a network device, The apparatus includes a sixth setting unit, which sets a secondary cell group (SCG) for the terminal device; Wherein, if the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the primary secondary cell (PSCell); and / or If the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or If the secondary cell pair is not configured to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, when the secondary cell pair is deactivated, the terminal equipment stops TRP-specific beam failure detection in the primary secondary cell.

[0370] (Appendix 50) 50. The apparatus of claim 48 or 49, An apparatus that, by a common setting or a separate setting, supports radio link monitoring when the secondary cell set is deactivated or indicates whether radio link monitoring is supported when the secondary cell set is deactivated, and / or supports beam failure detection when the secondary cell set is deactivated or indicates whether beam failure detection is supported when the secondary cell set is deactivated.

[0371] (Appendix 51) 51. The apparatus of claim 50, An apparatus, wherein the common setting, when used to set deactivation of an SCG, instructs a terminal device to perform radio link monitoring and / or beam failure detection, or instructs whether the terminal device should perform radio link monitoring and / or beam failure detection, the beam failure detection including cell beam failure detection or TRP-specific beam failure detection.

[0372] (Appendix 52) 51. The apparatus of claim 50, The single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell, or instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device whether to perform radio link monitoring on the primary secondary cell or instructing the terminal device to perform radio link monitoring on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell, or instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell, or instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell; and An apparatus that, when used to set the deactivation of the secondary cell set, instructs the terminal device whether to perform TRP-specific beam failure detection on the primary secondary cell, or instructs the terminal device to perform TRP-specific beam failure detection on the primary secondary cell.

[0373] (Appendix 53) 53. The apparatus of any one of clauses 50-52, comprising: The device, wherein the configuration indicating whether or not radio link monitoring (RLM) and / or beam failure detection is supported is included in a cell group configuration (CellGroupConfig) IE.

[0374] (Appendix 54) 54. The apparatus of any one of clauses 48-53, comprising: A device, wherein the setting indicating support for radio link monitoring (RLM) and beam failure detection is BOOLEAN data or ENUMERATED data.

[0375] (Appendix 55) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a network device, The apparatus includes a seventh setting unit, which sets a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection on the secondary cell; and / or When the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the secondary cell, when the secondary cell set is deactivated, the terminal equipment performs TRP-specific beam failure detection of the secondary cell.

[0376] (Appendix 56) An apparatus for evaluating downlink radio link quality, comprising: The device is used in a network device, The apparatus includes an eighth setting unit, which sets a secondary cell group (SCG) for a terminal device; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the secondary cell; and / or If the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, when the secondary cell set is deactivated, the terminal equipment stops TRP-specific beam failure detection in the secondary cell.

[0377] (Appendix 57) A terminal device, The terminal device includes a device described in any one of Supplementary Notes 1-47.

[0378] (Appendix 58) A network device, 57. A network device, comprising: a device according to any one of claims 48-56.

[0379] (Appendix 59) 1. A communication system comprising: A communication system comprising a terminal device according to claim 57 and / or a network device according to claim 58.

[0380] (Appendix 2) (Appendix 1) A method for assessing downlink radio link quality, comprising: The method is used in a terminal device, The method comprises: Set up a secondary cell group (SCG); performing radio link monitoring on a primary secondary cell (PSCell) when the secondary cell pair is deactivated, if the secondary cell pair is configured by the network to support radio link monitoring (RLM); and / or performing beam failure detection for the primary secondary cell when the secondary cell pair is deactivated, if the secondary cell pair is configured by the network to support beam failure detection and a reference signal for cell beam failure detection is configured for the primary secondary cell; and / or A method for performing TRP-specific beam failure detection of the primary secondary cell when the secondary cell set is deactivated, when the secondary cell set is configured by a network to support beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell.

[0381] (Appendix 2) 2. The method of claim 1, comprising: A method for indicating, by a common setting or a separate setting, whether to support radio link monitoring when the secondary cell set is deactivated or whether to support radio link monitoring when the secondary cell set is deactivated, and / or whether to support beam failure detection when the secondary cell set is deactivated or whether to support beam failure detection when the secondary cell set is deactivated.

[0382] (Appendix 3) 10. The method of claim 2, A method in which the common configuration, when used to configure deactivation of an SCG, instructs a terminal device to perform radio link monitoring and / or beam failure detection, or instructs whether the terminal device will perform radio link monitoring and / or beam failure detection, the beam failure detection including cell beam failure detection or TRP-specific beam failure detection.

[0383] (Appendix 4) 10. The method of claim 2, The single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell, or instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device whether to perform radio link monitoring on the primary secondary cell or instructing the terminal device to perform radio link monitoring on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell, or instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell, or instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell; and A method for instructing a terminal device whether to perform TRP-specific beam failure detection on a primary secondary cell, or instructing a terminal device to perform TRP-specific beam failure detection on a primary secondary cell, when used to configure deactivation of the secondary cell set.

[0384] (Appendix 5) 5. The method according to any one of Supplementary Notes 2-4, A method, wherein the configuration indicating whether or not radio link monitoring (RLM) and / or beam failure detection is supported is included in a cell group configuration (CellGroupConfig) IE.

[0385] (Appendix 6) 6. The method according to any one of appendices 1 to 5, comprising: A method wherein the setting indicating support for radio link monitoring (RLM) and beam failure detection is BOOLEAN data or ENUMERATED data.

[0386] (Appendix 7) 2. The method of claim 1, comprising: For the secondary cell set to be configured, when activation of the secondary cell set is indicated by an upper layer, a MAC entity can use at least one of the following secondary cell set activation operations: Primary secondary cell activation; SRS transmission on primary secondary cells; CSI reporting on primary secondary cells; PDCCH monitoring on primary secondary cells; PUCCH transmission on primary secondary cell; When triggered, performing random access on the primary secondary cell; and The method further comprises initializing Bj to 0 for each logical channel associated with the primary secondary cell.

[0387] (Appendix 8) 2. The method of claim 1, comprising: For the configured secondary cell set, when deactivation of the secondary cell set is indicated by higher layers, a MAC entity can perform at least one of the following: deactivating all secondary cells (SCells) of the configured secondary cell set; Deactivation of primary secondary cells; and A method for resetting a MAC.

[0388] (Appendix 9) 9. The method of claim 8, The MAC reset includes at least one of the following: Stopping all running timers other than the first timer or stopping all running timers; Stopping a running random access procedure; Clear Msg3 buffer; Clear MSGA buffer; Cancellation of a triggered Beam Failure Recovery (BFR); and The method includes resetting a first counter.

[0389] (Appendix 10) 10. The method of claim 9, Stopping all running timers other than the first timer or stopping all running timers includes: and / or when the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for a primary secondary cell of the secondary cell set, stopping all other running timers other than a first timer, the first timer including a TA timer and a beam failure detection timer associated with the primary secondary cell; and / or A method comprising: when the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a reference signal for beam failure detection dedicated to a TRP is configured for a primary secondary cell of the secondary cell set, stopping all running timers other than a first timer, the first timer including a TA timer and a beam failure detection timer associated with the primary secondary cell or a beam failure detection timer dedicated to each TRP of the primary secondary cell.

[0390] (Appendix 11) 10. The method of claim 9, Cancellation of triggered beam failure recovery includes at least one of the following: Cancellation of triggered beam failure recovery of primary secondary cells; Cancellation of triggered beam failure recovery of one BFD-RS pair of primary-secondary cells; Not canceling the triggered beam failure recovery of one BFD-RS pair of the primary-secondary cell; and A method in which beam failure detection of one BFD-RS pair of a primary secondary cell is stopped.

[0391] (Appendix 12) 12. The method according to claim 9 or 11, When the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection and a TRP-specific reference signal for beam failure detection is configured for a primary secondary cell of the secondary cell set, the method includes not canceling a triggered beam failure recovery of one BFD-RS set of the primary secondary cell and / or stopping beam failure detection of one BFD-RS set of the primary secondary cell.

[0392] (Appendix 13) 12. The method according to claim 9 or 11, a method for not canceling the triggered beam failure recovery of the BFD-RS set of the primary secondary cell and / or stopping beam failure detection of the BFD-RS set of the primary secondary cell when the network indicates that the secondary cell set supports radio link monitoring and / or beam failure detection, a reference signal for TRP-dedicated beam failure detection is configured for a primary secondary cell of the secondary cell set, and beam failure recovery of only one BFD-RS set of the primary secondary cell is triggered.

[0393] (Appendix 14) 2. The method of claim 1, comprising: Performing radio link monitoring on the primary secondary cell (PSCell) includes: A method in which, when configured by a network to perform radio link monitoring on an inactive primary secondary cell, the terminal device performs radio link monitoring on a BWP other than an active DL BWP.

[0394] (Appendix 15) 15. The method of claim 14, A method in which, when a network configures a terminal device to perform radio link monitoring on an inactive primary secondary cell, and a radio link failure is not detected on the primary secondary cell or the set of secondary cells in which the primary secondary cell is located, the terminal device performs radio link monitoring on a BWP other than an active DL BWP.

[0395] (Appendix 16) 2. The method of claim 1, comprising: When a reference signal for TRP-specific beam failure detection is configured for the primary secondary cell, performing TRP-specific beam failure detection of the primary secondary cell when the secondary cell set is deactivated includes at least one of the following: During the deactivation period of the secondary cell pair, when a beam failure of one BFD-RS pair in the primary secondary cell is detected, the terminal device stops detecting a beam failure of the BFD-RS pair; During the deactivation period of the secondary cell set, when a reference signal of one BFD-RS set of the primary secondary cell is reconfigured, the terminal device recovers beam failure detection of the BFD-RS set; During the deactivation period of the secondary cell pair, when beam failure recovery of two BFD-RS pairs in the primary secondary cell has all been triggered and not completed successfully, if the MAC layer has not indicated a beam failure to an upper layer since the secondary cell pair was deactivated, the MAC layer indicates a beam failure to an upper layer; and The method of claim 1, wherein when receiving an activation command for the secondary cell set from the network, if beam failures of all two BFD-RS sets in the primary secondary cell are detected, the terminal equipment performs a random access procedure for the secondary cell set.

[0396] (Appendix 17) 2. The method of claim 1, comprising: Performing beam failure detection of the primary secondary cell includes: A method in which, for each serving cell for which beam failure detection is set, when a first counter is greater than or equal to a predetermined threshold, a MAC entity indicates to an upper layer a beam failure of the primary secondary cell if the serving cell is the primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated to an upper layer a beam failure of the primary secondary cell since it was deactivated.

[0397] (Appendix 18) 18. The method of claim 17, Performing beam failure detection of the primary secondary cell further includes: A method in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal device instructs lower layers to stop beam failure detection in the primary secondary cell.

[0398] (Appendix 19) 19. The method of claim 18, A method wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0399] (Appendix 20) 18. The method of claim 17, Performing beam failure detection of the primary secondary cell further includes: A method in which the MAC entity instructs a lower layer of beam failure of the primary secondary cell, or instructs a lower layer to stop beam failure detection in the primary secondary cell.

[0400] (Appendix 21) 21. The method of claim 20, The method, wherein the lower layer is a physical layer or an RF chain.

[0401] (Appendix 22) 17. The method of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of two BFD-RS pairs of a special cell has been triggered and not completed successfully, A method in which a MAC entity instructs a higher layer of beam failure of the primary secondary cell when the serving cell is the primary secondary cell, the secondary cell set in which the special cell is located is inactive, and the secondary cell set has not instructed a higher layer of beam failure of the primary secondary cell since it was deactivated.

[0402] (Appendix 23) 23. The method of claim 22, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: A method in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal device instructs lower layers to stop beam failure detection in the primary secondary cell.

[0403] (Appendix 24) 24. The method of claim 23, The method, wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0404] (Appendix 25) 24. The method of claim 23, Performing beam failure detection of the primary secondary cell further includes: A method in which a MAC entity instructs a lower layer of beam failure of the primary secondary cell, or instructs a lower layer to stop beam failure detection on the primary secondary cell.

[0405] (Appendix 26) 26. The method of claim 25, The method, wherein the lower layer is a physical layer or an RF chain.

[0406] (Appendix 27) 23. The method of claim 22, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: When two BFD-RS pairs are configured in a serving cell, for each BFD-RS pair of the serving cell, if beam failure recovery of two BFD-RS pairs of a special cell has been triggered and not completed successfully, A method in which a MAC entity initiates a random access procedure in the primary secondary cell when the serving cell is not the primary secondary cell, or when the secondary cell set in which the special cell is located is not inactive, or when the secondary cell set has already been deactivated and has instructed a higher layer of beam failure for the primary secondary cell.

[0407] (Appendix 28) 17. The method of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, A method in which, when the serving cell is the primary secondary cell and the secondary cell set is inactive, a MAC entity indicates to a higher layer a beam failure of the BFD-RS set of the primary secondary cell.

[0408] (Appendix 29) 29. The method of claim 28, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: A method in which, upon receiving the instruction, the terminal device instructs a lower layer to stop beam failure detection for the BFD-RS set in the primary secondary cell.

[0409] (Appendix 30) 29. The method of claim 29, The method, wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0410] (Appendix 31) 29. The method of claim 28, Performing beam failure detection dedicated to the TRP of the primary secondary cell further includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, A method in which, when the serving cell is the primary secondary cell and the secondary cell set is inactive, a MAC entity instructs a lower layer of beam failure of the BFD-RS set of the primary secondary cell, or instructs the primary secondary cell to stop beam failure detection of the BFD-RS set at the primary secondary cell.

[0411] (Appendix 32) 32. The method of claim 31, The method, wherein the lower layer is a physical layer or an RF chain.

[0412] (Appendix 33) 17. The method of claim 1 or 16, Performing beam failure detection dedicated to the TRP of the primary secondary cell includes: When two BFD-RS pairs are configured in a serving cell, if it is determined that, for each BFD-RS pair of the serving cell, at least one beam failure recovery has already been triggered and not canceled for only one BFD-RS pair of one primary secondary cell in the beam failure recovery procedure, When the serving cell is not the primary secondary cell or the secondary cell set is not inactive, the MAC entity instructs a multiplexing and assembly procedure to generate an Enhanced BFR MAC CE or trigger an SR.

[0413] (Appendix 34) 16. The method of any one of Supplementary Notes 16, 18, 20, 23, 25, 29, and 31, comprising: The stopping of the beam failure detection includes: the MAC entity or a lower layer stopping the beam failure detection; and / or The method, wherein the beam failure detection recovery includes: a MAC entity or a lower layer recovers the beam failure detection.

[0414] (Appendix 35) A method for assessing downlink radio link quality, comprising: The method is used in a terminal device, The method comprises: Set up a secondary cell group (SCG); If the set of secondary cells is not indicated by the network as supporting radio link monitoring (RLM), stopping radio link monitoring on a primary secondary cell (PSCell) when the set of secondary cells is deactivated; and / or If the secondary cell pair is not indicated by the network as supporting beam failure detection or a reference signal for cell beam failure detection is not configured for the primary secondary cell, stopping beam failure detection in the primary secondary cell when the secondary cell pair is deactivated; and / or A method for stopping TRP-specific beam failure detection in the primary secondary cell when the secondary cell set is deactivated if the secondary cell set is not configured by the network to support beam failure detection or if a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell.

[0415] (Appendix 36) 36. The method of claim 35, For the secondary cell set to be configured, when activation of the secondary cell set is indicated by an upper layer, a MAC entity can use at least one of the following secondary cell set activation operations: Primary secondary cell activation; SRS transmission on primary secondary cells; CSI reporting on primary secondary cells; PDCCH monitoring on primary secondary cells; PUCCH transmission on primary secondary cell; When triggered, performing random access on the primary secondary cell; and The method further comprises initializing Bj to 0 for each logical channel associated with the primary secondary cell.

[0416] (Appendix 37) 36. The method of claim 35, For the configured secondary cell set, when deactivation of the secondary cell set is indicated by higher layers, a MAC entity can perform at least one of the following: deactivating all secondary cells (SCells) of the configured secondary cell set; Deactivation of primary secondary cells; and A method for resetting a MAC.

[0417] (Appendix 38) 38. The method of claim 37, The MAC reset includes at least one of the following: Stopping all running timers other than the first timer or stopping all running timers; Stopping a running random access procedure; Clear Msg3 buffer; Clear MSGA buffer; Cancellation of a triggered Beam Failure Recovery (BFR); and The method includes resetting a first counter.

[0418] (Appendix 39) 39. The method of claim 38, The resetting of the first counter includes: resetting the first counter associated with the primary secondary cell when the secondary cell set is not configured by the network to support beam failure detection and a TRP-specific reference signal for beam failure detection is not configured; and / or A method for resetting the first counter associated with the primary secondary cell or each BFD-RS pair of the primary secondary cell when the secondary cell pair is not configured by the network to support beam failure detection and a reference signal for beam failure detection dedicated to TRP is configured.

[0419] (Appendix 40) 39. The method of any one of claims 35-39, comprising: The stopping of the beam failure detection includes: the MAC entity or a lower layer stopping the beam failure detection; and / or The method, wherein the beam failure detection recovery includes: a MAC entity or a lower layer recovers the beam failure detection.

[0420] (Appendix 41) A method for assessing downlink radio link quality, comprising: The method is used in a terminal device, The method comprises: Set up a secondary cell group (SCG); performing radio link monitoring (RLM) on the secondary cell when the secondary cell set is deactivated if the secondary cell set or a secondary cell (SCell) of the secondary cell set is indicated by the network to support RLM; and / or If the network indicates that the secondary cell pair or a secondary cell of the secondary cell pair supports beam failure detection and a reference signal for cell beam failure detection is configured for the secondary cell, performing beam failure detection for the secondary cell when the secondary cell pair is deactivated; and / or A method for performing TRP-specific beam failure detection of a secondary cell when the secondary cell set is deactivated, when the network indicates that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection and a reference signal for TRP-specific beam failure detection is configured for the secondary cell.

[0421] (Appendix 42) A method for assessing downlink radio link quality, comprising: The method is used in a terminal device, The method comprises: Set up a secondary cell group (SCG); If the secondary cell set or a secondary cell (SCell) of the secondary cell set is not indicated by the network as supporting radio link monitoring (RLM), stopping radio link monitoring on the secondary cell when the secondary cell set is deactivated; and / or If the secondary cell pair or a secondary cell of the secondary cell pair is not indicated by the network as supporting beam failure detection or a reference signal for cell beam failure detection is not configured for the secondary cell, stopping beam failure detection in the secondary cell when the secondary cell pair is deactivated; and / or A method for stopping TRP-specific beam failure detection in a secondary cell when the secondary cell set is deactivated if the network does not indicate that the secondary cell set or a secondary cell of the secondary cell set supports beam failure detection or if a reference signal for TRP-specific beam failure detection is not configured for the secondary cell.

[0422] (Appendix 43) A method for assessing downlink radio link quality, comprising: The method is used in a terminal device, The method comprises: A method in which, for each serving cell for which beam failure detection is set, when a first counter is greater than or equal to a predetermined threshold, a MAC entity indicates to an upper layer a beam failure of the primary secondary cell if the serving cell is a primary secondary cell, the secondary cell set is inactive, and the secondary cell set has not indicated to an upper layer a beam failure of the primary secondary cell since it was deactivated.

[0423] (Appendix 44) 44. The method of claim 43, The method further comprises: A method in which, when the network does not set the first parameter or receives an instruction from the MAC layer, the terminal device instructs lower layers to stop beam failure detection in the primary secondary cell.

[0424] (Appendix 45) 45. The method of claim 44, A method wherein the lower layer is a MAC layer, a physical layer, or an RF chain.

[0425] (Appendix 46) 44. The method of claim 43, The method further comprises: A method in which the MAC entity instructs a lower layer of beam failure of the primary secondary cell, or instructs a lower layer to stop beam failure detection in the primary secondary cell.

[0426] (Appendix 47) 47. The method of claim 46, The method, wherein the lower layer is a physical layer or an RF chain.

[0427] (Appendix 48) A method for assessing downlink radio link quality, comprising: The method is used in a network device, The method comprises: Establishing a secondary cell group (SCG) for the terminal equipment; Wherein, if the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on a primary secondary cell (PSCell); and / or If the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection for the primary secondary cell; and / or A method in which, when the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the primary secondary cell, the terminal equipment performs TRP-specific beam failure detection for the primary secondary cell when the secondary cell set is deactivated.

[0428] (Appendix 49) A method for assessing downlink radio link quality, comprising: The method is used in a network device, The method comprises: Establishing a secondary cell group (SCG) for the terminal equipment; Wherein, if the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the primary secondary cell (PSCell); and / or If the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the primary secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the primary secondary cell; and / or A method in which, when the secondary cell set is not configured to support beam failure detection or a reference signal for TRP-specific beam failure detection is not configured for the primary secondary cell, the terminal equipment stops TRP-specific beam failure detection in the primary secondary cell when the secondary cell set is deactivated.

[0429] (Appendix 50) 49. The method of claim 48, A method for indicating, by a common setting or a separate setting, whether to support radio link monitoring when the secondary cell set is deactivated or whether to support radio link monitoring when the secondary cell set is deactivated, and / or whether to support beam failure detection when the secondary cell set is deactivated or whether to support beam failure detection when the secondary cell set is deactivated.

[0430] (Appendix 51) 51. The method of claim 50, A method in which the common configuration, when used to configure deactivation of an SCG, instructs a terminal device to perform radio link monitoring and / or beam failure detection, or instructs whether the terminal device will perform radio link monitoring and / or beam failure detection, the beam failure detection including cell beam failure detection or TRP-specific beam failure detection.

[0431] (Appendix 52) 51. The method of claim 50, The single setting includes at least one of the following: When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell, or instruct the terminal device to perform radio link monitoring and cell beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instructing the terminal device whether to perform radio link monitoring on the primary secondary cell or instructing the terminal device to perform radio link monitoring on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell, or instruct the terminal device to perform cell or TRP-specific beam failure detection on the primary secondary cell; When used to configure the deactivation of the secondary cell set, instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell, or instruct the terminal device to perform beam failure detection of the cell in the primary secondary cell; and A method for instructing a terminal device whether to perform TRP-specific beam failure detection on a primary secondary cell, or instructing a terminal device to perform TRP-specific beam failure detection on a primary secondary cell, when used to configure deactivation of the secondary cell set.

[0432] (Appendix 53) 53. The method of any one of claims 50-52, comprising: A method, wherein the configuration indicating whether or not radio link monitoring (RLM) and / or beam failure detection is supported is included in a cell group configuration (CellGroupConfig) IE.

[0433] (Appendix 54) 54. The method of any one of claims 48-53, comprising: A method wherein the setting indicating support for radio link monitoring (RLM) and beam failure detection is BOOLEAN data or ENUMERATED data.

[0434] (Appendix 55) A method for assessing downlink radio link quality, comprising: The method is used in a network device, The method comprises: Establishing a secondary cell group (SCG) for the terminal equipment; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair indicates that radio link monitoring (RLM) is supported, when the secondary cell pair is deactivated, the terminal device performs radio link monitoring on the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair indicates that it supports beam failure detection and configures a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device performs beam failure detection on the secondary cell; and / or A method in which, when the secondary cell set or a secondary cell of the secondary cell set indicates that it supports beam failure detection and configures a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal equipment performs TRP-specific beam failure detection of the secondary cell when the secondary cell set is deactivated.

[0435] (Appendix 56) A method for assessing downlink radio link quality, comprising: The method is used in a network device, The method comprises: Establishing a secondary cell group (SCG) for the terminal equipment; Wherein, if the secondary cell pair or a secondary cell (SCell) of the secondary cell pair does not indicate that it supports radio link monitoring (RLM), when the secondary cell pair is deactivated, the terminal device stops radio link monitoring in the secondary cell; and / or If the secondary cell pair or a secondary cell of the secondary cell pair does not indicate that it supports beam failure detection or does not configure a reference signal for cell beam failure detection for the secondary cell, when the secondary cell pair is deactivated, the terminal device stops beam failure detection in the secondary cell; and / or A method in which, when the secondary cell set or a secondary cell of the secondary cell set does not indicate that it supports beam failure detection or does not configure a reference signal for TRP-specific beam failure detection for the secondary cell, the terminal equipment stops TRP-specific beam failure detection in the secondary cell when the secondary cell set is deactivated.

Claims

1. An apparatus for evaluating downlink radio link quality, which is applied to a terminal device, comprising: A first setting unit for setting a secondary cell group (SCG), If the secondary cell group is configured by a network to support radio link monitoring (RLM), when the secondary cell group is deactivated, the terminal device performs radio link monitoring on a primary secondary cell (PSCell); An apparatus, wherein when the secondary cell group is configured by the network to support beam failure detection and two beam failure detection reference signal (BFD-RS) sets are not configured for the primary secondary cell, the terminal equipment performs beam failure detection of the primary secondary cell when the secondary cell group is deactivated.

2. 10. The apparatus of claim 1, Through common configuration, An apparatus for indicating whether to support radio link monitoring when the secondary cell group is deactivated, and for indicating whether to support beam failure detection when the secondary cell group is deactivated.

3. 10. The apparatus of claim 1, For the secondary cell group to be configured, when an upper layer indicates that the secondary cell group is to be deactivated, The MAC entity is Deactivating all secondary cells (SCells) of the configured secondary cell group; and MAC Reset A device that performs the above.

4. 4. The apparatus of claim 3, The MAC reset is Stopping all running timers except the first timer; Stopping an ongoing random access procedure; Clear Msg3 buffer; Clear MSGA buffer; Cancellation of a triggered Beam Failure Recovery (BFR); and First counter reset 10. An apparatus comprising:

5. 5. The apparatus of claim 4, The apparatus, wherein the first timer includes a beamFailureDetectionTimer associated with the primary secondary cell and a TA timer (TA timer).

6. An apparatus according to claim 4 or 5, Stopping all other running timers other than the first timer: The apparatus includes stopping all running timers other than a first timer when the network indicates that the secondary cell group supports radio link monitoring and / or beam failure detection and a reference signal for cell beam failure detection is configured for a primary secondary cell of the secondary cell group.

7. 5. The apparatus of claim 4, Cancellation of a triggered beam failure recovery can be performed by Cancel triggered beam failure recovery of primary secondary cells; Cancel the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; Not canceling the triggered beam failure recovery of one BFD-RS set of the primary secondary cell; and Stop beam failure detection of one BFD-RS set of the primary secondary cell The apparatus includes at least one of the following:

8. 10. The apparatus of claim 1, performing beam failure detection of the primary secondary cell, The device includes, for each serving cell for which beam failure detection is configured, when a first counter is greater than or equal to a predetermined threshold, a MAC entity instructing a higher layer of beam failure for the primary secondary cell if the serving cell is the primary secondary cell, the secondary cell group is inactive, and the secondary cell group has not been instructed to a higher layer of beam failure for the primary secondary cell since it was deactivated.

9. 9. The apparatus of claim 8, Performing beam failure detection of the primary secondary cell further comprises: The apparatus includes, when receiving an instruction from a MAC layer, instructing a lower layer by the terminal device to stop beam failure detection in the primary secondary cell.

10. A device for evaluating downlink wireless link quality, applied to a network device, comprising: a fifth setting unit for setting a secondary cell group (SCG) for the terminal device; If the secondary cell group indicates that it supports radio link monitoring (RLM), when the secondary cell group is deactivated, the terminal device performs radio link monitoring on a primary secondary cell (PSCell); An apparatus, wherein if the secondary cell group indicates that it supports beam failure detection and does not configure two beam failure detection reference signal (BFD-RS) sets for the primary secondary cell, when the secondary cell group is deactivated, the terminal equipment performs beam failure detection of the primary secondary cell.

11. The apparatus of claim 10, Through common configuration, An apparatus for indicating whether to support radio link monitoring when the secondary cell group is deactivated, and for indicating whether to support beam failure detection when the secondary cell group is deactivated.

12. The apparatus of claim 11, The common setting indicates whether the terminal device performs radio link monitoring and beam failure detection; The apparatus, wherein the beam failure detection includes cellular beam failure detection.

13. The apparatus of claim 11, The device, wherein the setting indicating whether to support radio link monitoring and beam failure detection is included in a cell group configuration (CellGroupConfig) IE (Information Element).

14. The apparatus of claim 11, The device, wherein the setting indicating whether to support radio link monitoring and beam failure detection is BOOLEAN data.

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