Title:
DATA TRANSMISSION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/134226
Kind Code:
A1
Abstract:
Provided in the present application are a data transmission method and apparatus, which are used to solve the problem in the existing technology in which signaling overhead is high, communication delay is long, and quality of service cannot be ensured due to application in closed-loop data transmission. In the present application: a terminal device acquires indication information in a downlink control channel, the indication information being used to indicate a downlink data channel resource and an uplink data channel resource; and receives data by using the downlink data channel resource and/or sends data by using the uplink data channel resource. Furthermore, if the terminal device does not correctly decode information carried on the downlink data channel, the terminal device does not send a NACK or does not send data and a NACK. A downlink data channel and an uplink data channel are jointly scheduled by using a downlink control channel, thereby reducing the signaling overhead of an entire closed-loop application and ensuring a service delay.
Inventors:
LI RUIJIE (CN)
GUAN LEI (CN)
GUAN LEI (CN)
Application Number:
PCT/CN2019/129958
Publication Date:
July 08, 2021
Filing Date:
December 30, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W72/12; H04W72/04
Foreign References:
| CN103327615A | 2013-09-25 | |||
| CN102143596A | 2011-08-03 | |||
| CN104823475A | 2015-08-05 |
Other References:
HUAWEI, HISILICON: "Further details of resource allocation for MTC UEs", 3GPP DRAFT; R1-155669, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Malmo, Sweden; 20151005 - 20151009, 4 October 2015 (2015-10-04), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051002512
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