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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

Tx/Rx timings applicable to each IAB node and a UE may be different according to whether the MT and DU can simultaneously operate. In other words, Tx/Rx timings of an IAB node and a UE can be determined by the type of a link scheduled in the same time duration. This will be described later in detail.

    • Separate operations of MT and DU (TDM of LP and LC/LA)

FIG. 38 schematically illustrates operations between MT and DU according to an embodiment of the present disclosure.

FIGS. 38(a), (b), (c) and (d) illustrate multiplexing examples in which only one of MT and DU of an IAB node operates for a time. That is, LP and LC/LA can be TDMed in this case.

In the case of FIGS. 38(a), (b) and (c), only one of LP, LC and LA can be reserved. In FIG. 38(d), LC and LA scheduled by DU can be simultaneously used but LP related to MT cannot be multiplexed.

In this case, Rx timings of LP,D and LC,U/LA,U need not be aligned because MT and DU do not simultaneously transmit/receive signals. Likewise, Tx timings of LP,U and LC,D/LA,D need not be aligned. Accordingly, transmission timings of all IAB nodes and donor nodes can be coordinated. Then, Tx and Rx timings with respect to each device can be determined as follows.

(1) Parent Node CU/DU

權(quán)利要求

1
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