Data transmission method, UE and computer readable storage medium

A data transmission method and computer technology are applied in the field of UE and computer-readable storage medium, and data transmission method, and can solve the problems of distance limitation between TXUE and RXUE, unreliable data transmission, etc.

Active Publication Date: 2020-01-03
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technical solution of direct communication unicast transmission has a limitation on th...

Method used

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  • Data transmission method, UE and computer readable storage medium
  • Data transmission method, UE and computer readable storage medium
  • Data transmission method, UE and computer readable storage medium

Examples

Experimental program
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Embodiment Construction

[0060] In the existing 3GPP protocol, a sending UE field and a receiving UE field are set in a Medium Access Control (Medium Access Control, MAC) protocol data unit (Ptotocol data unit, PDU) header.

[0061] Wherein, the sending UE field refers to the identity information of the source sending UE, and the receiving UE field refers to the identity information of the target receiving UE.

[0062] That is to say, in the existing 3GPP protocol, for direct communication between UEs, the source sending UE must directly send data to the target receiving UE, and communication relay through the relay UE is not supported, so the existing direct communication only During the broadcast transmission process, there is a limitation on the distance between the TX UE and the RX UE. When the distance between the TX UE and the RX UE is long, data transmission cannot be performed reliably.

[0063] In view of the above problems, an embodiment of the present invention provides a data transmission...

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PUM

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Abstract

The invention discloses a data transmission method, UE and a computer readable storage medium. The data transmission method comprises the following steps: when relay UE receives a first MAC PDU sent by sending UE, the first MAC PDU is decoded; wherein the first header information comprises identity identification information of the sending UE and identity identification information of the relay UE; wherein the first MAC sub PDU comprises header information of the first MAC sub PDU and an SDU carried by the first MAC sub PDU; the relay UE determines logic channel identification information usedfor sending the carried SDU and identity identification information of source sending UE and target receiving UE corresponding to the carried SDU; the relay UE determines the identity identificationinformation of the receiving UE of each SDU, and encapsulates part or all of the SDUs with the same identity identification information of the receiving UE and the corresponding information into the same second MAC PDU; and the packaged second MAC PDU is forwarded to the corresponding receiving UE. By applying the scheme, the reliability of data transmission can be improved in the direct communication unicast sending process.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a data transmission method, UE and a computer-readable storage medium. Background technique [0002] V2X (Vehicle to X), that is, information exchange between vehicles and the outside world, is a key technology for future intelligent transportation systems. The application of V2X technology enables communication between vehicles, vehicles and pedestrians, and vehicles and base stations, and a series of traffic information such as real-time road conditions, road information, and pedestrian information can be obtained, effectively improving driving safety, reducing congestion, and improving traffic efficiency . [0003] V2X of the fifth-generation mobile communication (5G) New Radio (New, Radio) supports unicast transmission (unicast) of direct communication (Sidelink Communication) between user equipment (User Equipment, UE). Wherein, for a pair of UEs perfo...

Claims

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Application Information

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IPC IPC(8): H04W76/11H04W88/04H04L12/46H04W4/40
CPCH04L12/4633H04W88/04H04W4/40H04W76/11
Inventor 顾祥新韩立锋范慧芳
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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