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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

Method 2.2-9: When Method 2.2-8 is applied, the length of the OCC given to a terminal may correspond to the number of PUSCH instances (e.g., actual PUSCH instances) in a PUSCH occasion.

The coded symbols of the OCC may be applied to DM-RS symbols belonging to the actual PUSCH instance. When two actual PUSCH instances are configured, the length of the OCC may be m. In this case, a plurality of DM-RS symbols may belong to the j-th actual PUSCH instance. The j-th coded symbol of the OCC (j=1, 2, . . . , m) may be commonly multiplied.

FIG. 4 is a conceptual diagram illustrating a first exemplary embodiment of a method of applying OCC on an actual PUSCH instance basis.

Referring to FIG. 4, an OCC may be applied to an actual PUSCH instance in a PUSCH occasion. Since the PUSCH instance is transmitted four times in a case (a) shown in FIG. 4, the length of the OCC may be 4. Since the PUSCH instance is transmitted six times in a case (b) of FIG. 4, the length of the OCC may be 6.

Method 2.2-9: When a PUCCH occasion is transmitted, the number of actual PUSCH instances may be an arbitrary natural number. When an OCC is generated by a Walsh code, it may be convenient for the length of the OCC to be defined as a power of two. Therefore, it may be preferable that the length of the OCC has a specific structure rather than an arbitrary natural number.

Method 2.2-10: When Method 2.2-8 is applied, the length of an OCC given to a terminal may correspond to the number of slots required for transmission of a PUSCH occasion.

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