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Resource selection method and device for V2X communication

A resource selection and resource technology, applied in the resource selection field of V2X communication, can solve problems such as limited power supply of user terminals

Inactive Publication Date: 2018-02-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a resource selection method and device for V2X communication, so as to at least solve the problem of limited power supply of user terminals in V2X communication

Method used

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  • Resource selection method and device for V2X communication
  • Resource selection method and device for V2X communication
  • Resource selection method and device for V2X communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] In this embodiment, resource selection is performed first, and then signal detection and / or energy sensing are performed.

[0074] In this embodiment, the resource selection of the P-UE in V2X communication is taken as an example for illustration. Figure 5 It is a schematic diagram of a resource selection method in Embodiment 1 of the present invention.

[0075] Such as Figure 5 As shown, the P-UE randomly selects a P2V (P-UE transmits and V-UE receives) resource 1, and uses the P2V resource 1 to send a P2V message. In addition to random selection, the P-UE may also select the P2V resource 1 through signal detection and / or energy sensing. The UE determines which method to use to select the P2V resource 1 according to the parameters indicated by the network side or according to the pre-configured parameters.

[0076] For the convenience of description, the period for sending P2V messages by the P-UE is defined as the sending period, which corresponds to the data arr...

Embodiment 2

[0091] Image 6 is a schematic diagram of the resource selection method in Embodiment 2 of the present invention, such as Image 6 As shown, the P-UE selects resources from the dedicated resource pool for sending P2V messages, and the resources for sending P2V messages and the resources for sending V2X messages are mutually orthogonal. The configuration parameters of the dedicated resource pool can be obtained through high-level configuration signaling or pre-configuration.

[0092] exist Image 6 In the example of , the full bandwidth resource containing 10ms in every 100ms time domain is a subset of the P-UE dedicated resource pool, and 10 subsets of the P2V dedicated resource pool within the range of 1s are used to select resources to send P2V messages. The subset of P-UE dedicated resource pools may also have other different configuration parameters.

[0093] The P-UE performs signal detection and / or energy sensing on a subset of P-UE dedicated resource pools, determine...

Embodiment 3

[0108] Figure 7 It is a schematic diagram of the resource selection method in Embodiment 3 of the present invention. P2V transmission and V2X transmission share a resource pool, including a sending resource pool and a receiving resource pool. A certain P-UE uses some resources in the resource pool as a subset of the sending Select resources in the subset of sending resource pools to send the P2V message, and determine the optimal resource set according to signal detection and / or energy sensing results in the subset of sending resource pools included in the judgment window. In the subset of sending resource pools, only P2V messages are sent, or P2V messages are sent preferentially.

[0109] Alternatively, part of the resources in the resource pool are used as a subset of the sending resource pool, and are used exclusively for sending P2V messages by all P-UEs, or preferentially used for sending P2V messages by P-UEs.

[0110] For example, if Figure 7 As shown, P-UE1 takes t...

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Abstract

The invention provides a resource selection method and device for internet of vehicles V2X communication. The method comprises the steps that UE performs signal detection and / or energy sensing on a preset resource set; the UE determines a resource or a resource set for sending a wireless signal according to a signal detection and / or energy sensing result; and the UE uses the determined resource tosend the wireless signal or selects a resource from the resource set to send the wireless signal. Through adoption of the method, the UE keeps V2P communication and V2X communication reliable, further, power efficiency of the UE is improved, so that the power is saved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a resource selection method and device for V2X communication. Background technique [0002] The Internet of Vehicles refers to a large-scale system network for wireless communication and information exchange between vehicles and X (X: vehicles, roads, pedestrians, and the Internet, etc.) in accordance with agreed communication protocols and data interaction standards. Vehicle networking communication can enable vehicles to obtain driving safety, improve traffic efficiency, and obtain convenience or entertainment information. Classified from the objects of wireless communication, the Internet of Vehicles communication includes three different types: communication between vehicles (Vehicle to Vehicle, referred to as V2V), communication between vehicles and roadside equipment (Vehicle to Infrastructure, referred to as V2I), And communication between vehicles and pedestrians (Vehi...

Claims

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Application Information

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IPC IPC(8): H04W72/02H04W72/04
CPCH04W72/02H04W72/52H04W8/00Y02D30/70
Inventor 黄双红卢有雄杨瑾袁明王文焕
Owner ZTE CORP
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