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Sending and receiving processing method and device of V2X terminal time frequency synchronization

A technology of time-frequency synchronization and processing methods, which is applied in the directions of synchronization devices, connection management, transportation and packaging, etc., and can solve problems such as no mature implementation solutions

Active Publication Date: 2017-08-15
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the V2X communication environment, how to realize the time-frequency synchronization transmission and reception of V2X terminals, there is currently no mature implementation plan

Method used

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  • Sending and receiving processing method and device of V2X terminal time frequency synchronization
  • Sending and receiving processing method and device of V2X terminal time frequency synchronization
  • Sending and receiving processing method and device of V2X terminal time frequency synchronization

Examples

Experimental program
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Effect test

Embodiment 1

[0154] In the first embodiment, the UE is a controlled VUE, and the controlled VUE acquires specific sending condition information for sending the SLSS according to an instruction of the eNB. VUE uses eNB or GNSS as a reference synchronization source, and sends SLSS with this reference. In order to reduce the impact on cellular network communication and ensure backward compatibility, VUE reuses the time-frequency resources configured in the cell for SLSS transmission of D2D terminals, and uses the same synchronization sequence and PSBCH structure as D2D terminals. The specific implementation steps are as follows:

[0155] Step 310: The VUE receives the instruction signaling about the specific sending condition information sent by the eNB, and determines the specific sending condition of the SLSS / PSBCH according to the instruction signaling. The specific sending condition includes: the time-frequency resource position for sending the SLSS / PSBCH, the SLSS sequence Index and the...

Embodiment 2

[0166] In the second embodiment, the UE is an autonomous VUE, and the VUE acquires corresponding information for sending the SLSS according to the pre-configuration. The VUE can use other SLSS-sending UEs or GNSS as a reference synchronization source, and use this as a reference to send SLSS and PSBCH. In order to reduce the impact on cellular network communication and ensure backward compatibility, VUE reuses the time-frequency resources configured in the cell for SLSS transmission of D2D terminals, and uses the same synchronization sequence and PSBCH structure as D2D terminals. The specific implementation steps are as follows:

[0167] Step 410: The VUE determines the specific sending condition of the SLSS / PSBCH, the time-frequency resource position of the sending SLSS / PSBCH, the SLSS sequence index and the value of the partial field of the PSBCH.

[0168] Step 420: The VUE transmits the corresponding SLSS and PSBCH on the corresponding time-frequency resource when the SLSS...

Embodiment 3

[0180] In the third embodiment, the UE is a controlled VUE, and the VUE acquires corresponding information for sending the SLSS according to the instruction of the eNB. VUE uses eNB or GNSS as a reference synchronization source, and sends SLSS with this reference. In this embodiment, the PSBCH structure sent by the VUE may be different from that sent by the D2D terminal. In order to avoid mutual influence, the time-frequency resource and the SLSS sequence for the VUE to send SLSS are different from those sent by the D2D terminal. The specific implementation steps are as follows:

[0181] Step 510: The VUE receives the eNB signaling to determine the specific sending conditions of the SLSS / PSBCH, and sends the time-frequency resource position of the SLSS / PSBCH, the SLSS sequence index and the value of the partial field of the PSBCH.

[0182] Step 520: The VUE transmits the corresponding SLSS and PSBCH on the corresponding time-frequency resource when the SLSS transmission condi...

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Abstract

The application provides a sending and receiving processing method and device of V2X terminal time frequency synchronization. The method comprises the following steps: when a to-be-sent synchronization signal is the same as a synchronization signal of the existing D2D terminal, sending the synchronization signal by reuse of the configured time frequency resource of the D2D terminal in a cell; when the sent synchronization signal is different from the synchronization signal of the existing D2D terminal, sending the synchronization signal by use of a reconfigured time frequency resource, wherein the corresponding synchronization source type is indicated by use of a SLLS sequence index and / or a value of a PSBCH specified domain in the synchronization signal sent by the V2X terminal. For the V2X terminal for receiving the synchronization signal, the synchronization source type is determined according to the received synchronization signal; furthermore, a reference synchronization source is selected on the basis of the fixed priority according to the detected synchronization source. According to the method provided by the application, the time frequency synchronization between the terminals in the V2X communication environment can be supported in small improvement cost aiming at the prior art.

Description

technical field [0001] This application relates to the technical field of mobile communication, in particular, this application relates to the time-frequency synchronization transmission and reception processing between V2X terminals in a communication service (V2X, Vehicle to Vehicle / Pedestrian / Infrastructure / Network) communication system between a vehicle and a selected device Methods and devices. Background technique [0002] At present, the device-to-device (D2D, Device to Device) communication technology has been accepted by the third generation partnership project (3GPP) standard by virtue of its great potential value in the field of public safety and ordinary civilian communication, and has been listed in 3GPPRel-12 The standardization of some functions has been realized, including the mutual discovery of D2D terminals in the scenario of cell coverage, the scenario of cell coverage (IC, In Coverage), the scenario of partial cell coverage (PC, Partial Coverage) and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W56/00
CPCH04L5/0048H04W56/00H04W56/002H04W56/0015H04W4/40H04W48/12H04W76/14H04W56/001H04W72/04H04W84/00H04W84/18
Inventor 张世昌李迎阳王轶
Owner BEIJING SAMSUNG TELECOM R&D CENT
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