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Method and apparatus for extending coverage in communication system

專利號
US11611989B2
公開日期
2023-03-21
申請人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE（KR Daejeon）
發(fā)明人
Cheul Soon Kim; Jae Heung Kim; Sung Hyun Moon; Jung Hoon Lee; Sung Cheol Chang
IPC分類
H04W74/00; H04W74/08; H04W72/14; H04W24/10; H04W72/1268; H04W72/04
技術(shù)領(lǐng)域
pusch,pucch,occasion,may,terminal,ul,be,instance,coherence,in
地域： Daejeon

摘要

An operation method of a terminal in a communication system may comprise receiving first random access (RA) configuration information and second RA configuration information from a base station; transmitting a Msg1 to the base station based on the second RA configuration information; receiving a Msg2, which is a response to the Msg1, from the base station; and repeatedly transmitting a Msg3 K times to the base station.

說明書

Referring to FIG. 27C, frequency hopping may be performed at a boundary between an invalid symbol and a valid symbol, and the maximum number of consecutive PUCCH instances may be set. When Method 3.2-4 is applied, four or less PUCCH instances may belong to the same frequency hop. The terminal may maintain phase coherence and/or power coherence in the third, fourth, fifth, and sixth PUCCH instances. In addition, the terminal may maintain phase coherence and/or power coherence in the seventh and eighth PUCCH instances.

3.3 Methods for Enhancement of Power Control

In order to extend a coverage of a PUCCH, repeated transmission of a PUCCH occasion may be indicated to the terminal. The terminal may receive an RRC signaling message including information indicating a repetition transmission method (e.g., repetition type) from the base station. For convenience of description, similarly to the exemplary embodiment of the PUSCH occasion, the repeated transmission method of the PUCCH occasion may be classified into a PUCCH repetition type A and a PUCCH repetition type B.

權(quán)利要求

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