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Method and device for transmitting/receiving downlink control information in wireless communication system

專利號
US12219579B2
公開日期
2025-02-04
申請人
LG ELECTRONICS INC.（KR Seoul）
發(fā)明人
Hyungtae Kim; Jiwon Kang
IPC分類
H04W72/232; H04L1/08; H04L5/00; H04W72/12
技術領域
pdcch,dci,coreset,tci,in,ss,ue,may,coresets,candidate
地域： Seoul

摘要

Disclosed are a method and a device for transmitting or receiving downlink control information in a wireless communication system. A method for receiving downlink control information (DCI) according to an embodiment of the present disclosure any comprise the steps of: repeatedly receiving the DCI via a plurality of physical downlink control channel (PDCCH) candidates; and transmitting or receiving data scheduled via the DCI. The DCI may be transmitted via a first physical downlink control channel (PDCCH) candidate within a first search space set and a second PDCCH candidate within a second search space set, the first search space set and the second search space set may be related to different transmission configuration indication (TCI) states, and a window that is a duration in which the first PDCCH candidate and the second PDCCH candidate are transmitted may be preconfigured in a time domain.

說明書

Embodiment 2-1 may be configured as a special case of embodiment 2-3. That is, when CORESETs 1 and 2 are configured identically (however, the TCI state and CORESET ID defined in the CORESET are different) in the method of configuring CORESETs 1 and 2 and SS sets 1 and 2 as in embodiment 2-3, it is not different from embodiment 2-1 in which one CORESET, two SS sets, and two TCIs are configured. Therefore, the same PDCCH may be repeatedly transmitted in the same manner as in embodiment 2-1.

Embodiment 2-2) One PDCCH Candidate Dividedly Transmitted by a Plurality of Base Stations (i.e., MTRP) May be Defined/Configured in One (Same) CORESET and One (Same) SS Set

A plurality of base stations may dividedly transmit PDCCH candidates defined in one CORESET and one SS set. Here, some of the frequency/time resources constituting one PDCCH candidate are transmitted/received using one of two TCI states set in a CORESET, and the remaining resources may be transmitted/received using the other TCI state.

FIG. 14 is a diagram illustrating a method for transmitting and receiving downlink control information according to an embodiment of the present disclosure.

FIG. 14 illustrates an example in which frequency resources constituting one PDCCH candidate are dividedly mapped to different TCI states. All PDCCH candidates may be transmitted (repeatedly) at a specific period (P) interval in a time domain.

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