DATA TRANSMISSION METHOD AND COMMUNICATION DEVICE

Title:

DATA TRANSMISSION METHOD AND COMMUNICATION DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/029307

Kind Code:

A1

Abstract:

Disclosed by the present application are a data transmission method and a communication device, which are used for reducing system overhead and improving the efficiency of re-transmission. The method comprises: receiving downlink control information (DCI) from a network device, wherein the DCI comprises a first bit and a second bit, the first bit and the second bit being respectively used to indicate two new data indicators (NDI) associated with two transmission blocks (TB) scheduled by the DCI; according to the first bit and the second bit in the DCI, performing uplink data transmission or downlink data transmission on an HARQ process corresponding to the two TBs. By using one piece of DCI to carry two NDIs associated with two TBs scheduled by the DCI, DCI overhead is prevented from increasing as much as possible. At the same time, since the first bit and the second bit in the DCI respectively indicate the NDIs associated with two TBs, it also means that different NDIs are independently indicated by means of different bit indication bits, which may accurately distinguish which TB needs to be re-transmitted and improve the re-transmission efficiency. The method and device provided in the embodiments of the present application increase network coverage capabilities and may be applied to an Internet of Things, for example, an MTC, an IoT, an LTE-M, an M2M, etc.

Inventors:

LUO ZHIHU (CN)
LI JUN (CN)
TIE XIAOLEI (CN)
JIN ZHE (CN)

Application Number:

PCT/CN2018/100113

Publication Date:

February 13, 2020

Filing Date:

August 10, 2018

Export Citation:

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Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H04W74/00

Foreign References:

CN102714580A	2012-10-03
CN102045766A	2011-05-04
CN108243630A	2018-07-03

Other References: