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Data transmission method, device and system

A technology for transmitting data and data, which is applied in the field of data transmission and can solve the problem of no hybrid automatic retransmission request.

Inactive Publication Date: 2019-10-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The data transmission reliability mechanism of the PC5 interface adopts the blind retransmission mechanism. For the data to be transmitted, two data transmissions are performed, and there is no hybrid automatic repeat request (HARQ) mechanism during the transmission process.

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

Experimental program
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Embodiment Construction

[0033] The technical solution in this application will be described below with reference to the accompanying drawings.

[0034] The technical solution of the embodiment of the present application can be applied to various communication systems, for example: global system of mobile communication (globalsystem of mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5th generation, 5G) mobile communication system or new The wireless (new radio, NR) system, and other netw...

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Abstract

The embodiment of the invention provides a data transmission method, which is used for improving the transmission reliability of data on a wireless direct connection communication interface. The method is mainly realized through the following steps: terminal equipment serving as a sending end sends information about a transmission reliability requirement of to-be-transmitted data to wireless access network equipment through a wireless communication interface, wherein the to-be-transmitted data is data to be sent to receiving end terminal equipment through a wireless direct connection communication interface by the sending end terminal equipment; and the sending end terminal equipment acquires transmission resources required for sending the to-be-transmitted data on the wireless direct connection communication interface configured by the wireless access network equipment, and sends the data to receiving end terminal equipment by using the transmission resources.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a data transmission method, device and system thereof. Background technique [0002] Currently, vehicles can communicate through vehicle-to-vehicle (Vehicle to Vehicle, V2V) or vehicle-to-roadside infrastructure (Vehicle to Infrastructure, V2I) or vehicle-to-pedestrian (Vehicle to Pedestrian, V2P) or vehicle-to-vehicle Communicating with the network (Vehicle to Network, V2N) to obtain road condition information or receive information services in a timely manner, these communication methods can be collectively referred to as V2X communication (wherein, X represents anything). The network used for V2X communication is called Internet of Vehicles. IoV communication based on cellular network is an important means of communication at present, such as V2X direct communication based on long term evolution (LTE) or fifth generation (5th Generation, 5G) new radio (NewRadio, N...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/40H04W28/04H04W72/04H04W76/14H04L29/08H04W72/54
CPCH04W4/40H04W28/04H04W76/14H04L67/12H04W72/20H04W72/52H04W72/54H04W4/46H04W72/21H04W72/23H04W72/51H04W72/542
Inventor 刘菁卓义斌王君戴明增
Owner HUAWEI TECH CO LTD