Title:
RANDOM ACCESS PREAMBLE TRANSMISSION METHOD AND DEVICE THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/141256
Kind Code:
A1
Abstract:
Provided in the embodiment of the present invention are a random access preamble transmission method and a device therefor. The method comprises: a user equipment sends a first random access preamble to a network equipment, the first random access preamble being used for the user equipment to access the network equipment; when the user equipment fails to access the network equipment through the first random access preamble, the user equipment sends at least one second random access preamble to the network equipment, wherein access characteristic information of each second random access preamble is different from the access characteristic information of the first random access preamble, the access characteristic information comprises at least one of a time length, a transmitting beam, and a random access resource, and at least one second random access preamble is used for the user equipment to access the network device. The embodiment of the present invention solves the problem of random access failure caused by the random access preamble not reaching the network device in the future wireless communication network, and can improve the probability of the random access preamble arriving at the network device, thereby improving the success rate of the random access.
Inventors:
YAN MAO (CN)
CHEN LEI (CN)
CHEN LEI (CN)
Application Number:
PCT/CN2018/074983
Publication Date:
August 09, 2018
Filing Date:
February 01, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W74/08
Foreign References:
| CN101478778A | 2009-07-08 | |||
| CN101662836A | 2010-03-03 | |||
| US20090316586A1 | 2009-12-24 |
Other References:
HUAWEI: "RACH Preamble and Procedures for Unified Single and Multiple Beam Based Access", 3GPP TSG RAN WG1 MEETING #86BIS, R1-1608824, 1 October 2016 (2016-10-01), XP051148878
HUAWEI: "Unified Single/Multiple Beam-based Initial Access Procedure in NR", 3GPP TSG RAN WG1 MEETING #86BIS, R1-1608823, 1 October 2016 (2016-10-01), XP051148877
See also references of EP 3562252A4
HUAWEI: "Unified Single/Multiple Beam-based Initial Access Procedure in NR", 3GPP TSG RAN WG1 MEETING #86BIS, R1-1608823, 1 October 2016 (2016-10-01), XP051148877
See also references of EP 3562252A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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