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Method and apparatus for extending coverage in communication system

專利號(hào)
US11611989B2
公開日期
2023-03-21
申請(qǐng)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

The UL grant and/or RRC signaling may indicate that the PUSCH instance is transmitted K times, and the TDRA index may indicate K SLIVs and/or mapping types. Alternatively, when SLIVs and/or mapping type fewer than K SLIVs and/or mapping types are indicated, it may be interpreted that K SLIVs and/or mapping types are indicated according to a predefined scheme. For example, when a PUSCH is to be transmitted eight times, if four SLIVs and/or mapping types are indicated, the same four SLIVs and/or mapping types may be applied again in order. Alternatively, if more than K SLIVs and/or mapping types are indicated, K SLIVs and/or mapping types from the first SLIV and/or mapping type may be applied.

For example, a case where transmission of four PUSCH instances in a PUSCH occasion is indicated may be considered.

FIG. 7 is a conceptual diagram illustrating a first exemplary embodiment of a PUSCH transmission method according to a PUSCH repetition type D.

Referring to FIG. 7, a PUSCH instance may be transmitted four times in four slots. In a procedure of allocating a PUSCH occasion, (SLIV1, SLIV2, SLIV3, SLIV4) may be indicated to a terminal. Each of the corresponding SLIVs may be interpreted as an SLIV of each PUSCH instance. In the fourth slot, the SLIV4 may be regarded as belonging to an invalid time (e.g., invalid resource). Therefore, the fourth PUSCH instance may not be transmitted.

權(quán)利要求

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