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Method, device and system for resource preemption

A technology of resources and terminal equipment, applied in the field of communication, can solve the problems of frequent resource preemption and inability to guarantee resource security, etc.

Active Publication Date: 2022-07-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, even if the terminal device that preempts the resource can send a preemption message to indicate the resource it preempted, there is still a situation that the resource is preempted by other terminal devices again, that is, the resource may be frequently preempted, and the security of the resource cannot be guaranteed

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  • Method, device and system for resource preemption
  • Method, device and system for resource preemption
  • Method, device and system for resource preemption

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Embodiment Construction

[0040] In order to facilitate the understanding of the technical solutions of the embodiments of the present application, a brief introduction of the related technologies or names of the present application is first given as follows.

[0041] First, the Internet of Vehicles:

[0042] The Internet of Vehicles (V2X) refers to the interconnection between vehicles and the outside world through devices (such as sensors, on-board terminals, etc.) configured on vehicles and various communication technologies, such as vehicle-to-vehicle (V2V), vehicle-to-people (vehicle topedestrian, The interconnection and communication of V2P), vehicle to infrastructure (V2I), vehicle and network, etc., can be used in car sharing (car sharing), intelligent network driving (intelligent network driving, IND) and other fields.

[0043] Second, the scheduling mode:

[0044] In the embodiment of the present application, in the scheduling mode, when the terminal device transmits data on the side link SL,...

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Abstract

The embodiments of the present application provide a resource preemption method, device, and system. It can reduce the number of times that resources are frequently preempted, and improve the security of resources. Specifically, the first terminal device acquires the first time interval and the second time interval, and preempts or determines not to preempt the first resource according to the first preset rule, where the first resource is the resource reserved by the second terminal device or the first resource. The predetermined resource of the first service to be transmitted by the terminal device, the first time interval is the time interval related to the first resource, the second time interval is used to indicate the preemption prohibition time, and the first preset rule is based on the first time interval. and the second time interval is determined.

Description

technical field [0001] The present application relates to the field of communications, and in particular, to a method, device and system for resource preemption. Background technique [0002] In new radio (NR) vehicle to everything (V2X) communication, terminal devices can communicate in autonomous mode. In the autonomous mode, the terminal device autonomously selects suitable sidelink (SL) resources to transmit data by sensing resources. The sensing mechanism mainly includes two aspects: decoding scheduling assignment (SA) and energy measurement. The terminal equipment can decode the SA of other terminal equipment in the sliding sensing window to obtain the time-frequency resources scheduled by other terminal equipment and the time-frequency resources that need to be used at that time. The priority of the sidelink packets sent on the frequency resource (proSe per-packet priority, PPPP), and then through the energy measurement, select the resources that are not reserved by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L47/24H04L47/2491H04W28/02H04W72/54
CPCH04L47/245H04L47/24H04L47/2491H04W28/0268H04L47/821H04W72/02H04W72/56H04W72/569H04W72/20H04W76/30H04W28/26H04W92/18H04W72/53H04W72/542
Inventor 余唱常俊仁张向东
Owner HUAWEI TECH CO LTD