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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

Accordingly, only cases A, B, C and/or D (FIG. 38(a), (b), (c) and/or (d)) can be supported and multiplexed in different time durations in order to generate Tx timings between all nodes to be aligned (timing case 1).

That is, when a TDM pattern indicating a link that can be used for each timing period is present, this TDM pattern can be composed of a plurality of time durations and LP, LC, LA or LC+LA can be transmitted in each time duration. This TDM pattern can be configured by a parent node or a donor node through higher layer signaling.

2. Option B. Support of SDM/FDM of LP and LC/LA

For flexible and efficient resource utilization in cases E, F and Gin FIGS. 38(e), (f) and (g), support of SDM/FDM of LP and LC/LA can be conceived.

Since timing case 2 needs to be supported in order to multiplex LP and LC/LA in the same time duration, all or some of cases A to G may need to be supported in NR IAB and timing case 2 can be applied.

Alternatively, timing case 1 can be applied to a time duration in cases A to D and timing case 2 can be applied to a time duration in cases E to G.

3. Option C. TDM of LP/LC and LA

In view of a UE, it may be desirable to have an access link timing independent from a backhaul timing.

權(quán)利要求

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