Method and device for sending and broadcasting resource information

A technology of resource information and transmission method, which is applied in broadcast service distribution, network traffic/resource management, wireless communication, etc., can solve problems such as road safety application interruption, resource collision, etc., and achieve the effect of avoiding information transmission interruption

Active Publication Date: 2019-09-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the resource allocation, scheduling and coordination entities within the cellular network coverage and outside the cellular network coverage are different, during the movement of the vehicle, if the vehicle moves from within the network coverage to outside the network coverage, or from outside the network coverage to within the network coverage, resource collisions will occur. Issues that generate road safety app outages

Method used

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  • Method and device for sending and broadcasting resource information
  • Method and device for sending and broadcasting resource information
  • Method and device for sending and broadcasting resource information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0169] Example 1: Resource coordination without resource collision

[0170] image 3 It is a schematic diagram of in-coverage and out-of-coverage nodes without resource collision. As shown in the figure, car A is in the edge area within the coverage of the base station, and car B is outside the coverage of the base station.

[0171] There are 2 possibilities for the car:

[0172] Situation 1. Car A continues to send D2D SS, but does not receive the synchronization signal from the out-of-coverage node, and does not need to send resource coordination messages;

[0173] Case 2. Car A can receive the D2D SS from car B outside the coverage, and needs to send a resource coordination message;

[0174] For the case 2 that requires resource coordination, it is implemented as follows:

[0175] step one:

[0176] Car A can receive the D2D SS sent by car B outside the coverage. Since the D2D SS sequences inside and outside the coverage of eNB are different, car A confirms that car A i...

Embodiment 2

[0190] Embodiment 2: Resource coordination is required for strong interference information

[0191] Figure 4 It is a schematic diagram of in-coverage and out-of-coverage nodes reporting strong interference. As shown in the figure, cars A and D are in the inner edge area of ​​base station coverage, car C is in the coverage of the base station, and car B is out of coverage. Car B and car C occupy the same time-frequency resource for transmission, and car D detects that the transmission resources of car B and car C collide. Then it can be implemented as follows:

[0192] step one:

[0193] Since car A is in the edge area covered by the base station, it needs to continuously send the D2D SS. When car A receives the D2D SS from car B outside the coverage, because the D2D SS sequence is different between the eNB coverage and the out-of-coverage D2D SS sequence, car A confirms that car A is at the edge of base station coverage, and there are out-of-coverage node car B around.

...

Embodiment 3

[0216] Embodiment 3: There is strong interference and strong interference information requires resource coordination

[0217] Figure 5 It is a schematic diagram of in-coverage and out-of-coverage nodes without resource collision. As shown in the figure, car A, car D, and car C are in the inner edge area of ​​base station coverage, car E is in the coverage of the base station, and car B and car F are out of coverage. Car B and car C occupy the same time-frequency resource for transmission, and car D detects that the transmission resources of car B and car C collide. Car B and car C occupy the same time-frequency resource for transmission, and car D detects that the transmission resources of car B and car C collide. Then it can be implemented as follows:

[0218] step one:

[0219] Car A is within the coverage of the base station and continues to send D2D SS. When car A receives the D2D SS from car B outside the coverage, because the D2D SS sequence is different between the ...

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Abstract

The invention discloses a method and device for sending and broadcasting resource information, including: determining resources used by nodes of the second type and resources used by nodes of the first type, and determining nodes of the first type receiving resource coordination messages, the first type A type of node is a node located within the signal coverage of the base station, and the second type of node is a node located outside the base station signal coverage; sending a resource coordination message to the determined first type of node, and instructing the first type of node to broadcast resources The content of the coordination message, the resource coordination message carries the resource information of the first type node and the second type node. By adopting the invention, the continuity of resources is guaranteed during the movement of nodes at the edge of network coverage, resource collisions are reduced, and the utilization rate of system resources is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for sending and broadcasting resource information. Background technique [0002] The active and safe Internet of Vehicles communication system for vehicles is based on wireless communication technology to obtain vehicle and road information, and realize intelligent coordination and cooperation between vehicles and infrastructure through information interaction and sharing between vehicles and vehicles to achieve optimal utilization of the system. resources, improve road traffic safety, improve driver experience, and alleviate traffic congestion. [0003] The vehicle-road collaborative communication system needs to ensure road safety and apply low-latency and high-reliability features. Within the network coverage, the cellular network allocates, dispatches and coordinates resources, while the vehicle-road collaborative communication syste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/16H04W72/04
CPCH04W28/16H04W72/20H04W72/04H04W4/06H04W72/30H04W72/51H04W48/10H04W48/12
Inventor 赵丽唐纪晔林琳房家奕
Owner DATANG MOBILE COMM EQUIP CO LTD
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