DATA TRANSMISSION METHOD AND DEVICE

WIPO Patent Application WO/2018/072097

A1

Embodiments of the present invention relate to a data transmission method and device. The method comprises: a sending device determines a mapping relationship between a TCP data packet identifier and an RLC PDU identifier; receive an RLC status report sent by a receiving device, the RLC status report comprising the RLC PDU identifier and being used for indicating the receiving condition, at the receiving device, of the RLC PDU indicated by the RLC PDU identifier comprised in the RLC status report; the sending device generates a TCP status report according to the RLC status report and the mapping relationship between the TCP data packet identifier and the RLC PDU identifier, the TCP status report being used for indicating the receiving condition of the TCP data packet at the receiving device. The present invention achieves the function of a TCP acknowledgement packet by means of the transmission of an RLC acknowledgement packet at an air interface. The resources occupied by the RLC acknowledgement packet during air interface transmission are far less than those occupied by the TCP acknowledgement packet, and therefore, the transmission rate of data flow of a TCP protocol can be improved.

SHI XIANWEN (CN)
PANG LINGLI (CN)
LOU QUNFANG (CN)
CHAO ZHIJUN (CN)

PCT/CN2016/102441

April 26, 2018

October 18, 2016

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HUAWEI TECH CO LTD (CN)

H04W28/06

WO2015094043A1	2015-06-25
WO2008140222A1	2008-11-20

CN102761905A	2012-10-31
CN101193095A	2008-06-04

E-TONE INTELLECTUAL PROPERTY FIRM (CN)

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