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Method and equipment for resource selection in V2X communication

A resource selection and resource technology, applied in the field of communication, can solve problems such as no reasonable and effective solution

Pending Publication Date: 2019-01-01
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] From the above analysis, it can be seen that if multi-carrier bypass communication is to be supported, UE resource selection or resource reselection needs to be improved to better adapt to the multi-carrier bypass communication environment, but there is no reasonable and effective solution yet

Method used

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  • Method and equipment for resource selection in V2X communication
  • Method and equipment for resource selection in V2X communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132] In Embodiment 1, the multiple carriers on which the first UE performs channel detection and resource selection are a carrier group, that is, the single subframe resource is the single subframe resource of the carrier group. The concrete steps of this embodiment are as follows:

[0133]Step S201, the first UE determines a carrier set C that can be used for resource selection or reselection.

[0134] In this embodiment, the carrier set C includes multiple carriers, and all the carriers in the carrier set C belong to the same carrier group. Assuming that the number of carriers in the carrier set C is N, the number and position of the SLSS transmission subframes on each carrier in the N carriers are exactly the same; or, if the configurations of the SLSS transmission subframes on the N carriers are different, then N All SLSS transmission subframes on the carrier are not used for resource pool configuration.

[0135] Step S202, the first UE determines a candidate single su...

Embodiment 2

[0153] In Embodiment 2, the multiple carriers on which the first UE performs channel detection and resource selection are multiple carrier groups, for example, one or more carriers belonging to the same frequency band in the carrier set C belong to the same carrier group. At this time, the single subframe resource is a carrier group single subframe resource. The concrete steps of this embodiment are as follows:

[0154] Step S301, the first UE determines a carrier set C that can be used for resource selection or reselection.

[0155]In this embodiment, the carrier set C includes multiple carriers, and the carriers in the carrier set C are divided into multiple carrier groups. Assume that the number of carriers in the carrier set C is N, and the N carriers are divided into R carrier groups, and the number and position of the SLSS transmission subframes on the carriers in each carrier group are exactly the same; or, the carriers in each carrier group The configurations of the ...

Embodiment 3

[0174] In the third embodiment, the carrier set C for the first UE to perform channel detection and resource selection is not configured with a carrier group, that is, the single subframe resource is a single carrier single subframe resource. The concrete steps of this embodiment are as follows:

[0175] Step S401, the first UE determines a carrier set C that can be used for resource selection or reselection.

[0176]In this embodiment, the carrier set C includes multiple carriers, and it is assumed that the number of carriers in the carrier C is N. Preferably, the data and positions of the SLSS transmission subframes on each carrier in the carrier set C are the same; or, the configuration of the SLSS transmission subframes on each carrier in the carrier set C is different, but on the N carriers All SLSS send subframes are not used for resource pool configuration.

[0177] In step S402, the first UE determines a candidate single subframe resource set S in the carrier set C. ...

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Abstract

The invention discloses a method for performing resource selection or reselection in vehicle to vehicle / pedestrian / infrastructure / network (V2X) communication. The method comprises the steps that UE determines a carrier set C which can be used for resource selection or reselection; the UE determines a candidate single sub-frame resources set S in the carrier set C; and the UE selects at least one single sub-frame resource in the set S, and transits a PSSCH (Physical Sidelink Shared CHannel) on the selected resource. The invention further discloses corresponding user equipment. The application of the method can reduce the half-duplex limitation and IBE interference between different carriers in multi-carrier sidelink communication through increasing the possibility of selecting frequency resources on the same sub-frame by the UE when performing resource selection or reselection on multiple carriers.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular, the present application relates to a resource selection method and device in vehicle-to-external (V2X) communication, for example. Background technique [0002] In the 3GPP standard, the direct communication link between user equipment (UE) and UE is called side link (Sidelink). Similar to the uplink and downlink, there are also control channels and data channels on the side. The former is called the Physical Sidelink Control Channel (PSCCH for short), and the latter is called the Physical Sidelink Shared CHannel (Physical Sidelink Shared CHannel). , referred to as PSSCH). The PSCCH is used to indicate the time-frequency domain resource position of the PSSCH transmission, the modulation and coding mode, and the priority of data carried in the PSSCH, etc., and the PSSCH is used to carry data. [0003] The control information and data in the vehicle-to-external ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04W72/54
CPCH04W72/044H04W72/541
Inventor 张世昌李迎阳王轶
Owner BEIJING SAMSUNG TELECOM R&D CENT
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