Method and apparatus for performing cooperative communication in wireless communication system
摘要
說明書
In the present embodiment of the disclosure, it is assumed that two TRPs are configured for C-JT/NC-JT transmission, a total of 128 TCI states are configured, and N TCI Code IDs (e.g., N=16) are configured. A newly provided MAC CE message may be configured by successively arraying existing BWP ID and Serving cell ID information and then a plurality of pieces of TCI state ID pair information corresponding to the number (16) of TCI code IDs. In the present embodiment of the disclosure, TCI code point used in the MAC CE message of 3-1 Embodiment is omitted, but instead, TCI state ID pairs are arrayed in an inherent order, and upon receipt of the MAC CE message, the UE may determine indication and a change with respect to beamforming for C-JT/NC-JT reception. In this regard, TCI state ID 1 is an TCI states index for configuring indication and a change with respect to beamforming of the first TRP, and TCI state ID 2 is an TCI states index for configuring indication and a change with respect to beamforming of the second TRP. In the embodiment of the disclosure, TCI states T0 to T(N?2)×8+7 are arrayed as TCI states T(N?2)×8+7 regardless of identification and order with respect to TRPs, and TCI states IDs for first and second TRPs are arrayed as a pair. For example, in a case where the UE receives a MAC CE message where BWP ID is 00, Serving Cell ID is 00100, TCI states activated for the first TRP are T0 to T7 (T0=T1=T2=T3=T4=T5=T6=T7=1), TCI states activated for the second TRP are T24 to T31 (T24=T25=T26=T27=T28=T29=T30=T31=1), TCI states ID 1 of the first TRP is 0000000, TCI states ID 1 of the second TRP is 0010000, TCI states ID 2 of the first TRP is 000001, TCI states ID 2 of the second TRP is 0010001 . . . , TCI states ID 16 of the first TRP is 0001000, TCI states ID 16 of the second TRP is 0011000, when TCI code point 0 is indicated, the UE may determine that a pair of (T0, T32) is associated, when TCI code point 1 is indicated, the UE may determine that a pair of (T1, T33) is associated, . . . , when TCI code point 16 is indicated, the UE may determine that a pair of (T16, T48) is associated, and determine that beamforming is to be performed at the first TRP and the second TPRP.
