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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

As another example, K SLIVs may be interpreted in order. The terminal may determine whether the first SLIV is applied. If the first SLIV cannot be applied, the terminal may determine whether to apply the second SLIV. The terminal may identify the applicable SLIV by repeating the above-described operation, and may map the PUSCH instance according to the applicable SLIV. Here, the ‘a(chǎn)pplicable SLIV’ may mean that transmission of a full PUSCH instance composed of valid symbols is possible. The terminal may select a minimum number of valid SLIV(s) in consideration of the order among the SLIVs (e.g., SLIV vectors) indicated to the terminal.

FIG. 8 is a conceptual diagram illustrating a second exemplary embodiment of a PUSCH transmission method according to a PUSCH repetition type D.

Referring to FIG. 8, a PUSCH instance may be transmitted three times in four slots. The SLIV1 may be applicable in the first slot and the second slot. Considering invalid symbols, the SLIV1 and SLIV2 may not be applied in the third slot. Therefore, the SLIV3 may be applied in the third slot. In the fourth slot, the SLIV1, SLIV2, and SLIV3 may not be applied. Therefore, the SLIV4 may be applied in the fourth slot.

Method 2.3-3: To comply with Method 2.3-1 and/or Method 2.3-2, a UL grant may include one new data indicator (NDI) and RV. Alternatively, when a plurality of NDIs and RVs are included in a UL grant to schedule two or more TBs, a combination of specific field(s) included in the UL grant may imply that one TB is scheduled to the terminal.

權(quán)利要求

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