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Method and user equipment for transmitting random access channel signal, and method and base station for receiving random access channel signal

  • US 10,631,341 B2
  • Filed: 04/27/2018
  • Issued: 04/21/2020
  • Est. Priority Date: 05/03/2017
  • Status: Active Grant
First Claim
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1. A method of transmitting a random access channel (RACH) preamble by a user equipment in a wireless communication system, the method comprising:

  • receiving information on a configuration including preamble format information indicating a first format for the RACH preamble; and

    transmitting the RACH preamble in N orthogonal frequency division multiplexing (OFDM) symbols based on the first format for the RACH preamble,wherein the first format for the RACH preamble includes only a cyclic prefix (CP) part and a sequence part in a time domain, andwherein the first format for the RACH preamble satisfies;

    a length of the CP part is equal to N*NCP, where N is greater than 1 and NCP is a CP length of an OFDM symbol, andthe length of the CP part plus a length of the sequence part is equal to a total length of the N OFDM symbols.

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