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A method and device for information reporting and resource allocation in a vehicle networking system

A resource allocation and vehicle networking technology, applied in the field of communication, can solve problems such as poor security and node device collisions

Active Publication Date: 2020-05-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method and device for information reporting and resource allocation in the Internet of Vehicles system, which solves the problem that the existing time slot resource allocation algorithm is completely completed through the interaction between node devices, which easily leads to High probability of collision and poor safety

Method used

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  • A method and device for information reporting and resource allocation in a vehicle networking system
  • A method and device for information reporting and resource allocation in a vehicle networking system
  • A method and device for information reporting and resource allocation in a vehicle networking system

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Embodiment 1

[0202] Embodiment 1: This embodiment mainly describes the processes of collision processing, reporting of strong interference by node devices (referred to as nodes), and re-allocation of subframe resources by the base station.

[0203] Assuming that node A, node B, and node C belong to the same base station, the distance between node A and node C is one hop, and the distance between node B, node A and node C is relatively far, and the base station allocates subframe resources for these three nodes, as Node A and Node B are allocated subframe 1 (node ​​A and node B multiplex subframe 1), and node C is allocated subframe 2. Since node B is far away from node A and node C, it can be multiplexed with node A. Use subframe 1.

[0204] As the topology moves, the closer the node B is to the nodes A and C, the node A and the node B use the same subframe resource, causing some interference to the node C. When the signal strength from node B to node C is equal to the signal strength fro...

Embodiment 2

[0206] Embodiment 2: This embodiment mainly describes the resource adjustment process.

[0207] Assuming that node A and node B belong to the same base station, and the base station allocates subframe resources for these two nodes, since the distance between the two nodes is relatively long, the same subframe can be reused. With the movement of the topology, the distance between the two nodes is getting closer and closer, there is a possibility that there is a need for communication between the two nodes, and there are no other nodes between the two nodes, and the existence of the other node cannot be perceived through other nodes. A and Node B cannot receive each other's information.

[0208] In this case, the base station selects node A to continue using the existing subframe when it determines that the positions of the two nodes have reached the minimum distance for resource reuse based on the subframe resource information allocated to the node and the location information ...

Embodiment 3

[0209] Embodiment 3: This embodiment mainly describes the initial resource allocation process.

[0210] Node A initially accesses the base station, and applies for time slot resources through a Random Access (RA) process, wherein node A carries its own location information in the process of applying for resources.

[0211] The base station allocates time slot resources for node A according to the location information of node A. Prioritize the allocation of subframe resources that have not been allocated by the base station (that is, subframe resources in the idle state). If there are no subframe resources in the idle state, the base station searches for the node that occupies a certain subframe resource and is farthest from node A. Subframe resources are allocated to node A.

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Abstract

The embodiment of the invention discloses a method and device for information reporting and resource allocation in a vehicle networking system. It is used to solve the problem of high probability of collision between existing node devices. The resource allocation method includes: the network side equipment allocates subframe resources for the node equipment that initially accesses the cell, and notifies the initially allocated subframe resources to the node equipment that initially accesses the cell; for the node equipment that has already accessed the cell, the network side The device determines the collided node device, re-allocates subframe resources for the collided node device, and notifies the collided node device of the reallocated subframe resource respectively. Due to the use of network-side equipment to centralize resource scheduling for node equipment accessing the cell, it not only ensures time-division multiplexing of resources between node equipment and surrounding node equipment with communication needs, improves system capacity, but also resolves collision nodes in a timely and effective manner. Resource collisions between devices improve the performance of communication between system node devices.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for information reporting and resource allocation in an Internet of Vehicles system. Background technique [0002] With the development of vehicle communication systems and the gradual maturity of mobile ad hoc network technology, in order to realize real-time, dynamic and intelligent management of vehicles, a short-range communication (Dedicated Short Range Communications, DSRC) technology for vehicle networking has been developed. Through DSRC between vehicle nodes and between vehicle nodes and roadside nodes, point-to-multipoint and point-to-point methods are used to conduct two-way interaction of information such as position, speed, road environment, and equipment status, and collect information from vehicles to vehicles, vehicles, and roadsides. The devices are organically connected, and when dangerous road conditions are sensed, the vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04W28/16H04W72/04H04W72/54
CPCH04W92/16H04W72/0446H04W72/04H04W72/541H04L5/22H04W84/042H04W88/08
Inventor 冯媛唐纪晔周海军郭宣羽房家奕
Owner DATANG MOBILE COMM EQUIP CO LTD
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