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Data transmission method and device

A data transmission method and data technology, which is applied in the field of Internet of Vehicles, can solve problems such as large time delays, and achieve the effect of flexible selection

Active Publication Date: 2019-10-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a data transmission method and device to solve the problem of large time delay caused by the selection of the transmission path by the upper layer of the terminal during the transmission of the existing V2X service

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] On the terminal device side, DRB and SLRB are established for each V2X QoS flow. When there is V2X service data transmission, the terminal device selects the target radio bearer for service data transmission according to the service characteristic configuration information and the service characteristics of the service data. The specific process is as follows.

[0176] Step 50: The terminal device acquires configuration information, where the configuration information includes the first flow identifier and the configuration information of the DRB and the configuration information of the SLRB corresponding to the first flow identifier.

[0177] Step 51: The terminal device acquires service characteristic configuration information, where the service characteristic configuration information includes a first service characteristic and target radio bearer configuration information corresponding to the first service characteristic.

[0178] For example, the first service char...

Embodiment 2

[0189] On the terminal device side, DRB and SLRB are established for each V2X QoS flow. When there is V2X service data transmission, the terminal device selects the target radio bearer for service data transmission according to the preset threshold configuration information, channel load measurement results, and signal strength measurement results. transmission. The specific process is as follows.

[0190] Step 60: The terminal device acquires configuration information, where the configuration information includes the first flow identifier and the configuration information of the DRB and the configuration information of the SLRB corresponding to the first flow identifier.

[0191] Step 61: The terminal device acquires service data and a second flow identifier corresponding to the service data.

[0192] Step 62: The terminal device acquires preset threshold configuration information, where the preset threshold configuration information includes a CBR threshold and an RSRP thre...

Embodiment 3

[0208] On the terminal device side, DRB and SLRB are established for each V2X QoS flow. When there is V2X service data transmission, the terminal device selects the target radio bearer to transmit service data according to the target radio bearer configuration information obtained from the network device. The specific process is as follows.

[0209] Step 70: The terminal device obtains configuration information, where the configuration information includes the first flow identifier and the configuration information of the DRB and the configuration information of the SLRB corresponding to the first flow identifier.

[0210] Step 71: The terminal device acquires service data and a second flow identifier corresponding to the service data.

[0211] Step 72: The terminal device performs CBR and RSRP measurement, and reports the CBR and RSRP measurement results to the network device.

[0212] Specifically, the terminal device measures CBR and RSRP, and reports the CBR and RSRP meas...

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PUM

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Abstract

The invention discloses a data transmission method and device. The data transmission method comprises the steps that terminal equipment obtains configuration information which comprises a first flow identification, the configuration information of a data radio bearer corresponding to the first flow identification, and the configuration information of a direct connection link radio bearer; the terminal equipment obtains service data and a second flow identifier corresponding to the service data; the terminal equipment selects at least one of a corresponding data radio bearer and a direct connection link radio bearer as a target radio bearer according to the first flow identifier, the second flow identifier, the configuration information of the data radio bearer corresponding to the first flow identifier and the configuration information of the direct connection link radio bearer; and the terminal equipment transmits the service data on the target radio bearer, so that the terminal equipment can flexibly select a transmission path according to actual needs, thus reducing the time delay of data transmission.

Description

technical field [0001] The present application relates to the technical field of Internet of Vehicles, and in particular to a data transmission method and device. Background technique [0002] The vehicle-mounted terminal can communicate through vehicle-to-vehicle (Vehicle to Vehicle, V2V), vehicle-to-roadside infrastructure (Vehicle to Infrastructure, V2I), vehicle-to-pedestrian (Vehicle to Pedestrian, V2P) or vehicle-to-network Communication (Vehicle to Network, V2N) and other communication technologies to obtain road condition information or receive information services in a timely manner. These communication methods can be collectively referred to as V2X communication. [0003] Since the V2X communication is evolved from the Device to Device (D2D) technology, the V2X service can be transmitted through the Sidelink communication technology. Wherein, the interface through which the vehicle communicates with surrounding terminals through a direct link (Sideline) may be ref...

Claims

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Application Information

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IPC IPC(8): H04W4/44H04W28/08H04W76/11H04W76/14
CPCH04W76/11H04W76/14H04W4/44H04W28/0958H04W28/082H04W4/00
Inventor 王和俊李明超于映辉刘航
Owner HUAWEI TECH CO LTD