Title:
RANDOM ACCESS METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/178728
Kind Code:
A1
Abstract:
Provided in the present application are a random access method and apparatus, used for solving the problem of msg3 conflict when different terminals send the same preamble over different PRACH carriers at the same time. In the method, the terminal sends a first message to a network device over a PRACH carrier, the first message comprising a preamble, and then receives a second message sent by the network device, the second message comprising a RAPID and a RAR, and the RAPID and the RAR corresponding on a one-to-one basis. The terminal determines that the second message includes a RAPID used for identifying the preamble sent by the terminal, parses the RAR corresponding to the RAPID and, when determining that the PRACH carrier identified by the identification information in the parsed RAR is the same as the PRACH carrier used by the terminal when sending the first message, confirms that the parsed RAR was sent to the terminal by the network device.
Inventors:
ZHU XIAOSONG (CN)
WU YILING (CN)
WU YILING (CN)
Application Number:
PCT/CN2018/079506
Publication Date:
September 26, 2019
Filing Date:
March 19, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W74/08
Foreign References:
| CN103220813A | 2013-07-24 | |||
| CN103249169A | 2013-08-14 | |||
| US20150319638A1 | 2015-11-05 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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