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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

  • Information about a UE may be configured by each RN according to determined SFI.
  • Backhaul links are necessary to transmit such information, and information may be transmitted at a predetermined timing or such timing may be set by a donor gNB.

    • Methods for signaling a slot format of each link by a DgNB will be described in detail as follows. Some of the methods which will be described below may be used together.

    1. Method 1: The DgNB can broadcast slot format information of all links under the DgNB.

    The ID of an RN and slot format information of a link scheduled by the corresponding RN can be signaled to all RNs under the DgNB. For example, the DgNB can broadcast information about {IDs of RNs, slot formats of backhaul links scheduled by the RNs, and slot formats of access links scheduled by the RNs} with respect to RN1 and RN2 in the environment as shown in FIG. 11. Alternatively, the DgNB can broadcast information of {IDs of the RNs and a slot format of links (access links & backhaul links) scheduled by the RNs} with respect to RN1 and RN2 in consideration of a case in which slot formats of access links and backhaul links are identical. Alternatively, the DgNB can broadcast information of {IDs of the RNs and a slot format of backhaul links scheduled by the RNs} with respect to RN1 and RN2 in consideration of a case in which slot formats of access links under the DgNB are identical.

    2. Method 2: The DgNB can signal a slot format of each link in a unicast manner.

    3. Method 3: To signal a slot format of each link by the DgNB, only information of nodes under each node may be transmitted.

    B-2. Distributed Method

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