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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,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(shuō)明書(shū)

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a National Stage application under 35 U.S.C. § 371 of International Application No. PCT/KR2019/004126, filed on Apr. 8, 2019, which claims the benefit of U.S. Provisional Application No. 62/654,270, filed on Apr. 6, 2018, U.S. Provisional Application No. 62/670,717, filed on May 11, 2018, and Korean Patent Application No. 10-2018-0116128, filed on Sep. 28, 2018. The disclosures of the prior applications are incorporated by reference in their entirety.

BACKGROUND OF THE DISCLOSURE Field of the Disclosure

The present disclosure relates to wireless communication, and more specifically, to a method for slot formats with respect to backhaul and access links in a wireless communication system and a UE using the same.

Related Art

Recently, in 3GPP standardization organization, it has been considered a network slicing technique for implementing a plurality of logical networks on a single physical network in the NR system, which is 5G wireless communication system. To this end, the logical networks needs to be capable of supporting services having various requirements (e.g., enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), Ultra Reliable Low Latency Communication (URLLC), etc.). In addition, in the physical layer system of the NR system, it has been considered a technique for supporting an orthogonal frequency division multiplexing (OFDM) scheme in which a variable numerology is applicable according to the various services. In other words, in the NR (New RAT) system, an OFDM scheme (or a multiple access scheme) in which independent numerologies are applied in each time and frequency resource region may be supported.

權(quán)利要求

1
What is claimed is:1. A method for receiving first slot format information and second slot format information in a wireless communication system, the method performed by a node and comprising:receiving the first slot format information, wherein the first slot format information is slot format information for distributed unit (DU) operation;receiving the second slot format information, wherein the second slot format information is slot format information for mobile terminal (MT) operation;performing the DU operation based on the first slot format information; andperforming the MT operation based on the second slot format information,wherein the first slot format information or the second slot format information is information informing a symbol type for a plurality of symbols included in a slot.2. The method of claim 1, wherein the symbol type is one of an uplink type, a downlink type, or a flexible type.3. The method of claim 2, wherein the second slot format information informs that the plurality of symbols in the slot for the MT operation are configured from the uplink type and then configured to the downlink type.4. The method of claim 3, wherein a symbol of the flexible type is present between a symbol of the uplink type and a symbol of the downlink type.5. The method of claim 4, wherein the first slot format information informs that the plurality of symbols in the slot for the DU operation are configured from the downlink type and then configured to the uplink type.6. The method of claim 5, wherein the node performs the DU operation and the MT operation simultaneously in a same slot.7. The method of claim 1, wherein the MT operation is operation related to a communication between the node and a parent node, andwherein the DU operation is operation related to a communication between the node and a child node or a communication between the node and a user equipment (UE).8. The method of claim 1, wherein the node is an Integrated Access and Backhaul (IAB) node.9. The method of claim 1, wherein the first slot format information is different from the second slot format information.10. A node comprising:a transceiver;at least one memory; andat least one processor operatively coupled to the at least one memory and the transceiver, wherein the at least one processor is configured to:control the transceiver to receive the first slot format information, wherein the first slot format information is slot format information for distributed unit (DU) operation;control the transceiver to receive the second slot format information, wherein the second slot format information is slot format information for mobile terminal (MT) operation;perform the DU operation based on the first slot format information; andperform the MT operation based on the second slot format information,wherein the first slot format information or the second slot format information is information informing a symbol type for a plurality of symbols included in a slot.
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