Title:
NON-CONTENTION-BASED TWO-STEP RANDOM ACCESS METHOD AND APPARATUS, TERMINAL, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/062767
Kind Code:
A1
Abstract:
The present application relates to the technical field of mobile communications, and provides a non-contention-based two-step random access method and apparatus, a terminal, and a storage medium. The method comprises: UE sends a message A; a base station receives the message A; the base station determines whether a payload transmitted in a PUSCH for the message A is successfully received; if the base station does not successfully receive the payload, the base station sends a message B for retransmitting the payload; the terminal listens to the message B in a listening window for the message B; the terminal retransmits the payload; if the base station successfully receives the payload, the base station sends a message B used for indicating permission to access the base station; the terminal receives the message B. By sending a message B for payload retransmission to UE and retransmitting, by the UE, the payload to the base station after receiving the message B, the technical solution provided by the present application implements payload retransmission scheduling to complete a non-contention-based two-step random access process, and improves the access success rate of the non-contention-based two-step random access process.
Inventors:
SHI CONG (CN)
Application Number:
PCT/CN2019/109690
Publication Date:
April 08, 2021
Filing Date:
September 30, 2019
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H04W74/08
Foreign References:
| CN110115096A | 2019-08-09 |
Other References:
HUAWEI, HISILICON: "Discussion on 2-step RACH procedure", 3GPP DRAFT; R1-1906051, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20190513 - 20190517, 3 May 2019 (2019-05-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051708093
MEDIATEK INC.: "Further considerations on 2-step RACH", 3GPP DRAFT; R2-1813965 FURTHER CONSIDERATIONS ON 2-STEP RACH, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, 27 September 2018 (2018-09-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 7, XP051523430
MEDIATEK INC.: "Further considerations on 2-step RACH", 3GPP DRAFT; R2-1813965 FURTHER CONSIDERATIONS ON 2-STEP RACH, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, 27 September 2018 (2018-09-27), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, pages 1 - 7, XP051523430
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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