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

專利號(hào)
US12219579B2
公開日期
2025-02-04
申請(qǐng)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(shù)領(lǐng)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(shuō)明書

According to the existing standard, CORESET 0 is a special CORESET used to transmit system information to a UE, unlike a general CORESET. When two CORESETs are configured for MTRP PDCCH transmission, other UE operations based on CORESET 0 may become ambiguous. Therefore, in the case of CORESET 0, up to two TCI states may be configured to support MTRP PDCCH transmission. For the remaining CORESETs, one TCI state may be configured per CORESET, and multiple CORESETs may be used to support MTRP PDCCH transmission. Alternatively, if one TCI state is still configured in CORESET 0, and the other CORESET (e.g., CORESET x) has the same configurations as CORESET 0, except for a TCI state and a CORESET ID, a UE may use CORESET x for configuring an additional TCI state to CORESET 0.

    • When a plurality of TCI states are configured in a CORESET and/or CORESETs/SSs having different TCIs (setting parameters) are overlapped, a base station may separately indicate/configure a type of SS (for example, USS only/USS+CSS/some RNTI only among USS+CSS/CSS only, etc.) to be applied.

權(quán)利要求

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