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Method for slot format for backhaul and access link in wireless communication system and terminal using same method

專利號
US11350410B2
公開日期
2022-05-31
申請人
LG Electronics Inc.（KR Seoul）
發(fā)明人
Hyangsun You; Yunjung Yi; Huayue Song
IPC分類
H04W72/04; H04W72/12; H04W84/04
技術(shù)領(lǐng)域
backhaul,node,link,dgnb,slot,in,ue,access,rn,iab
地域： Seoul

摘要

The present disclosure provides a method for data transmission or reception performed by a first node in a wireless communication system, the method including: performing a first data transmission or reception to or from a UE on an access link on the basis of a first timing case in an access time duration; and performing a second data transmission or reception to or from a second node or a donor base station on a backhaul link on the basis of a second timing case in a backhaul time duration, wherein downlink transmission timings over the donor base station, the first node, the second node and the UE are aligned in the first timing case, and downlink and uplink transmission timings or downlink and uplink reception timings are aligned in the first node in the second timing case.

說明書

  • Alt 1. A period from a period in which DL starts to a period in which UL ends may be a slot boundary. Here, only one DL period and one UL period can be present in the slot boundary. Further, in this case, DL and UL periods may not be present in a specific slot. That is, a slot in which DL and UL periods are present and a slot in which DL and UL periods are not present may be TDMed.

    • FIG. 37 schematically illustrates other examples of slot formats.

    In the case of option C, slot formats with respect to links (an access link with a UE and a backhaul link with a child node) on which a node performs scheduling may be as follows. That is, the present disclosure proposes a method of using slot formats which will be described below for links (an access link with a UE and a backhaul link with a child node) on which a node performs scheduling in an NR IAB environment. Slots may have different slot formats. (A slot format may mean a format in which slots in an SFI interval are configured in the present disclosure).

    (a) A slot format may be configured in the order of D, X and U as illustrated in FIG. 37(a).

    (b) A slot format may be configured as X as illustrated in FIG. 37(b).

    F. Access and backhaul link multiplexing and Tx/Rx timing

    F-1. Transmission/Reception Timing

    An IAB node is composed of MT and DU. Here, the MT relates to a backhaul link LP with a parent node and the DU relates to a backhaul link LC with a child node and a backhaul link LA with an access link.

    權(quán)利要求

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