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PC5 carrier frequency selection method, device, equipment and base station

A carrier frequency, multi-carrier frequency technology, applied in the field of devices, equipment and base stations, PC5 carrier frequency selection method, can solve the problem of inability to receive V2X service data at the same time, achieve accurate selection and matching, and improve the effect of satisfaction

Pending Publication Date: 2019-05-24
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Correspondingly, for the receiver UE, due to its limited receiving capability, for the V2X service data sent by the sender through multiple carrier frequencies, it may not be able to receive the V2X service data sent on these multiple carrier frequencies at the same time. It is necessary to solve the problem of how the receiver UE with limited receiving capability determines the carrier frequency to be received

Method used

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  • PC5 carrier frequency selection method, device, equipment and base station
  • PC5 carrier frequency selection method, device, equipment and base station
  • PC5 carrier frequency selection method, device, equipment and base station

Examples

Experimental program
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Effect test

Embodiment 1

[0055] In the V2X Internet of Vehicles communication mode, the transmission of V2X messages can be transmitted in a multicast or broadcast manner. One way to implement multicast is based on the broadcast mechanism of MBSFN (Multicast Broadcast Single Frequency Network) and SC-PTM (Single-cell point-to multiple point) to support the broadcast transmission of V2X messages through the Uu interface. One implementation of broadcasting is based on UE-to-UE direct discovery / communication (D2D, sidelink, ProSe) that supports direct interaction between UEs through the PC5 interface (an interface introduced in 3GPP Rel-12, called PC5 interface) for broadcast transmission of V2X messages. The traditional base station-centric cellular network has obvious limitations in the support of high data rate and proximity service, and cannot meet the requirements of data rate and proximity service. The application of D2D technology can reduce the burden of the cellular network, reduce the battery ...

Embodiment 2

[0142] In order to better understand the present invention, the base station performs carrier frequency selection in combination with the carrier frequency selection auxiliary information sent by the V2X transmitting device as an example. At this time, the V2X sending end device is in the RRC connection state, and it can adopt mode3 mode or mode4 mode. At this time, the carrier frequency selection auxiliary information includes the transmission parameters corresponding to the V2X service data, and the transmission parameters include the buffer data volume buffer size and At least one of quality of service QoS information. In this embodiment, the quality of service QoS information corresponding to the V2X service data may be represented by a logical channel identifier and corresponding QoS information, or a target identifier and corresponding QoS information, or a logical channel group identifier and corresponding QoS information.

[0143] Optionally, if the V2X data of the sam...

Embodiment 3

[0194] This embodiment provides a PC5 carrier frequency selection device. The PC5 carrier frequency selection device can be set in a V2X sender device, and the functions of each module included therein can be realized by a processor of the V2X sender device. see Figure 4 As shown, the PC5 carrier frequency selection device includes:

[0195] The initial selection module 401 is configured to obtain an initial candidate carrier frequency set for the V2X service data according to the service identifier of the V2X service data and the mapping relationship between the service identifier and the carrier frequency.

[0196] The carrier frequency determination module 402 is configured to select the transmission carrier frequency of the V2X service data from the initial candidate carrier frequency set according to the carrier frequency selection information; for the specific selection method, refer to one of the selection methods shown in the above-mentioned embodiment, I won't repea...

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PUM

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Abstract

The embodiment of the invention provides a PC5 carrier frequency selection method, device, equipment and a base station, when a V2X sender needs to use the carrier frequency to send the V2X service data, the V2X sender sends the V2X service data; V2X sending end equipment can obtain an initial candidate carrier frequency set of the V2X service data according to the service identifier of the V2X service data and the mapping relation between the service identifier and a carrier frequency; the carrier frequency meeting the condition is further selected from the initial candidate carrier frequencyset through the carrier frequency selection information to serve as the transmission carrier frequency of the V2X service data so as to transmit the V2X service data, and more accurate selection andmatching of the carrier frequency can be achieved; When the receiving capability of the receiver is limited; The V2X receiving end device can select M carrier frequencies capable of being received atthe same time within the capability range of the V2X receiving end device as the receiving carrier frequencies according to the descending order of the priorities corresponding to the target service identifiers of the V2X service data, so that the receiving of the V2X with the high priority which the user is interested in can be ensured, and the satisfaction degree of the user experience is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a PC5 carrier frequency selection method, device, equipment and base station. Background technique [0002] With the development of communication technology and the enrichment of demand, the application scenarios of wireless communication are becoming more and more extensive, among which the typical one is Vehicle Networking. The so-called Internet of Vehicles means that vehicles can participate in wireless communication. By using advanced wireless cellular communication technology, real-time information interaction between vehicles and between vehicles and roadside infrastructure can be realized, and the current status (including the location of the vehicle) can be informed to each other. , speed, acceleration, driving path) and the acquired road environment information, collaboratively perceive road danger conditions, provide various collision warning information in time, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/70H04W4/40H04W72/04H04W72/10
CPCH04W4/40H04W4/70H04W72/04H04W72/12H04W72/56
Inventor 黄莹陈琳张博源汪梦珍
Owner ZTE CORP
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