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

專(zhuān)利號(hào)
US11350410B2
公開(kāi)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(lèi)
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(shuō)明書(shū)

Although not additionally illustrated, method 2 of section A-2 may be described as divided stages as follows. In a case in which a donor base station (e.g., DgNB or DeNB) is connected to an IAB node and the IAB node is connected to the donor base station and a UE, the IAB node can perform transmission and/or reception of data to and/or from the donor base station and the UE on a backhaul link and an access link on the basis of different slot formats.

Here, cell-specific slot formats (e.g., slot formats that can be obtained through system information and the like) as well as UE-specific slot formats (e.g., slot formats that can be obtained through RRC signaling and the like) may be different slot formats.

B. Slot Format Indication Method

Considering that slot formats may be different between backhaul links/access links, such slot formats may be determined in a centralized or distributed manner as follows. Links mentioned below mean a backhaul link and/or an access link.

FIG. 12 illustrates an example of a slot format indication method.

Although FIG. 12 is applicable to examples which will be described later, the present disclosure is not limited to FIG. 12.

Referring to FIG. 12, (RN/child) TAB node(s) can transmit information A to (donor/parent) TAB node(s) (S1210).

Thereafter, the (donor/parent) TAB node(s) can determine slot format(s) on the basis of information A (about access links and/or backhaul links of other node(s)) (S1220).

權(quán)利要求

1
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