CHANNEL SELECTION AND CONFIGURATION METHODS AND APPARATUS

WIPO Patent Application WO/2021/078007

A1

Disclosed in the present disclosure are channel selection and configuration methods and apparatus, which are used to resist transmission delay offset of different users within a cell and improve the signal-to-noise ratio of a random access channel sending signals, thereby improving a random access channel selection scheme suitable for a satellite communication system. At a terminal side, the channel selection method provided in an embodiment of the present disclosure comprises: determining a current signal transmission condition; and according to the current signal transmission condition and the configuration of a network, selecting the resources and channel format of a random access channel, wherein the random access channel uses a structure in which signal transmission is performed by using a means of repeated transmission by multiple preamble symbols.

MIAO DESHAN (CN)
REN BIN (CN)
SUN SHAOHUI (CN)

PCT/CN2020/119088

April 29, 2021

September 29, 2020

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DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD (CN)

H04W74/08

CN109565887A	2019-04-02
CN108289338A	2018-07-17

ZTE CORPORATION, ZTE MICROELECTRONICS: "Random access preamble structure and signaling", 3GPP DRAFT; R1-1611271, vol. RAN WG1, 18 November 2016 (2016-11-18), Reno, USA, pages 1 - 6, XP051189835
QUALCOMM INCORPORATED: "Reciprocity vs Non-reciprocity in Initial Access/RACH", 3GPP TSG RAN WG1 MEETING #87, vol. RAN WG1, 5 November 2016 (2016-11-05), Reno, Nevada, USA, pages 1 - 10, XP051190270
See also references of EP 4050961A4

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