Title:
DATA TRANSMISSION METHOD, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/102851
Kind Code:
A1
Abstract:
A data transmission method and a device, addressing the problem in which a reliable transmission mechanism is not defined between a cooperation terminal and a target terminal. The method comprises: if a second terminal determines that data repeatedly sent by a first terminal n times is correctly received at least once, the second terminal providing no feedback; if the second terminal determines that the data repeatedly sent by the first terminal n times is not correctly received, the second terminal feeding back to the first terminal a receive error response of the second terminal, where n is an integer greater than or equal to 2, and n is a maximum transmission count of the first terminal, and the data repeatedly sent by the first terminal to the second terminal is identical for each of the n times, and the data is received from a network apparatus by the first terminal before sending to the second terminal; and the first terminal determining, according to whether the second terminal has provided feedback, whether the second terminal has correctly received the data, thereby improving data transmission reliability. The invention eliminates feedback in the case that a second terminal correctly receives data sent by a first terminal, thereby reducing signaling transmission, and saving transmission resources.
Inventors:
MA CHIXIANG (CN)
ZHANG PENG (CN)
ZHANG PENG (CN)
Application Number:
PCT/CN2019/121749
Publication Date:
June 03, 2021
Filing Date:
November 28, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B7/026; H04L1/18; H04W88/04
Foreign References:
| CN108512576A | 2018-09-07 | |||
| CN108667500A | 2018-10-16 | |||
| CN109792371A | 2019-05-21 | |||
| US20100325504A1 | 2010-12-23 |
Other References:
HUAWEI, HISILICON: "Discussion on HARQ support for NR sidelink", 3GPP DRAFT; R2-1913701 DISCUSSION ON HARQ SUPPORT FOR NR SIDELINK, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Chongqing, China; 20191014 - 20191018, 4 October 2019 (2019-10-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051791693
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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