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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(hào)
US11350410B2
公開日期
2022-05-31
申請(qǐng)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,access,ue,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

  • A backhaul link has D and U periods in the order of D and U or U and D in a period in which access links under the same DgNB are X. Here, an X period may be included before and/or after the D and U periods. Alternatively, a backhaul link has only a D period and only a U period in a period in which access links under the same DgNB are X.
  • When node A schedules node B, a backhaul link of node B has U in a period in which a backhaul link of node A is D and has D in a period in which the backhaul link of node A is U.

    • D-3. Determination Method C

    (1) A tree structure of RN nodes single-hop or multi-hop forwarding from each donor gNB is generated. For example, a tree of DgNB-RN1-RN2 may be configured in FIG. 11. When a donor is D and a relay node is R for each backhaul link, it is assumed that SFI is configured according to the following rules.

    (2) It is assumed that a semi-static SFI format of a donor gNB is commonly used for RN nodes belonging to a tree based on the corresponding node. This SFI format may be preset or transmitted through backhaul signaling.

    (3) It is assumed that a semi-static SFI DL/UL configuration period is P. Here, it is assumed that a downlink symbol is M1, an uplink symbol is M2, and an unknown symbol is P*14-M1-M2.

    (4) In Determination of Backhaul SFI of the Donor gNB,

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