Beam failure recovery method and device for auxiliary link, storage medium and terminal
A recovery method and auxiliary link technology, applied in the field of communication, can solve problems such as affecting the communication quality of the auxiliary link, unable to provide effective solutions and relief measures, etc., to achieve the effect of improving communication quality and optimizing beam management logic
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example 1
[0125] Example 1, the beam failure information is sent through the PSFCH in a special sequence (sequence) form, so as to inform the sending terminal 21 that a beam failure event currently occurs.
[0126] Specifically, the resource sequence number of the PSFCH used to carry the beam failure information may have a mapping relationship with the new beam.
[0127] For example, the resource sequence number of the PSFCH may have a mapping relationship with the SL CSI-RS resource sequence number, the SL TRS resource sequence number or the S-SSB resource sequence number. Thus, after receiving the beam failure information carried by the PSFCH, the sending terminal 21 can implicitly know the index number of the new beam recommended by the receiving terminal 22 .
[0128] Wherein, the resource sequence number of the PSFCH may be the lowest subchannel index (lowest subchannel index), the highest subchannel index (highest subchannel index), the lowest physical resource block index (lowest...
example 2
[0129] Example 2, the beam failure information may be sent through the PSCCH.
[0130] Specifically, the beam failure information may carry one or more of the following contents: an indication of a beam failure event currently occurring; a CC index (Component Carrier, CC index) where a beam failure occurs; RSRP or SINR of a new beam; RS index of the new beam; CC index (index) of the RS of the new beam; indication information of no new beam; destination id (destination id); source id (source id); HARQ process ID (HARQ process id). Wherein, the indication information of no new beam may be indicated by a resource sequence number of PSFCH, PSSCH or PSCCH.
[0131] Wherein, the resource sequence number of the PSCCH may have a mapping relationship with the SL CSI-RS resource sequence number, the SL TRS resource sequence number or the S-SSB resource sequence number. Thus, after receiving the beam failure information carried by the PSCCH, the sending terminal 21 can implicitly know t...
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