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Resource indication and determination method and device

A resource indication and resource technology, applied in the field of communication, can solve the problems of large resource waste and waste of resources, etc.

Active Publication Date: 2015-03-18
DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By analogy, when using the existing resource allocation method for the above scenario to change the message sending cycle of the vehicle node from 100ms to 200ms, the overall waste of resources is about 50%
In the actual system, through the congestion control mechanism, the resource utilization of the system is usually controlled at 60%-70%, that is, 60-70 time slots out of 100 time slots in a frame are occupied by vehicle nodes. In this case, The resource waste caused by the existing resource allocation method is also quite large

Method used

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  • Resource indication and determination method and device
  • Resource indication and determination method and device
  • Resource indication and determination method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Embodiment 1: FI carries resource no longer occupied information, that is, through the no longer occupied resource indication information field added in the status indication of each resource in FI, it indicates the resource information that the sender will no longer occupy in the subsequent time. That is to say, the sending end sends a notification for indicating that the sending end will no longer occupy the sending resource in the subsequent time.

[0097] Such as Figure 5 As shown, a frame contains 8 resources, and adding 1 bit to the status indication of each resource in FI no longer occupies the information field, such as Image 6 shown. It is assumed that in the resource information field corresponding to each resource of the FI, the resource occupation state subfield is 2 bits, the STI subfield is 8 bits, and the priority subfield is 2 bits. In the resource occupation status subfield, 00 indicates that the resource is idle, and 10 indicates that the resource ...

Embodiment 2

[0103] Embodiment 2: FI carries resource period occupation indication information, that is, through the resource period occupation indication information field added in the status indication of each resource in the frame information FI, it indicates the resource information that the sender will no longer occupy in the subsequent time. That is to say, the sending end sends a notification for indicating the sending resource that the sending end will continue to occupy in a subsequent time.

[0104] Such as Figure 8 As shown, a frame contains 8 resources, and a 2-bit resource period occupation indication information field is added to the status indication of each resource in FI, such as Figure 9 As shown, it should be noted that the number of occupied bits in the resource period occupation indication information field is related to the length of the resource occupation period that the system wants to indicate. For example, 1 bit can indicate that the resource occupation period ...

Embodiment 3

[0115] Embodiment 3: Carry resource no longer occupied indication information in the control PDU (C-PDU) or data PDU (D-PDU), and indicate the sender by adding the no longer occupied resource indication information field in the control PDU or data PDU Information about resources that are no longer occupied at a later time. That is to say, the sending end sends a notification for indicating that the sending end will no longer occupy the sending resource in the subsequent time.

[0116] Such as Figure 12 As shown, a frame contains 8 resources, and the C-PDU carries the resource no longer occupied indication information field, such as Figure 13 shown. The resource no longer occupied indication information field is composed of K information units, each information unit is 1 bit (corresponding to a resource occupied by the node in the previous frame period), and K is the number of resources occupied by the node in the previous frame period. When the information element is set ...

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Abstract

The invention discloses a resource indication and determination method and device, which are used for improving resource utilization rate. The resource indication method comprises the following steps: a sending end determines sending resources no longer being occupied in the next frame, wherein the sending resources are resources for sending data of the sending end; and the sending end sends a notification for indicating the sending resources no longer being occupied or being occupied continually in the follow-up time of the sending end.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a resource indication and determination method and device. Background technique [0002] In the time slot resource allocation algorithm based on time slot reservation, in order to support the transmission of road safety messages with a message period of 100ms, the maintenance period of the time slot state cache table or time slot state table used by vehicle nodes to record the reservation status of each time slot is usually set However, the cycle of road safety messages sent by the vehicle node needs to be adjusted according to the real-time driving environment of the vehicle node (such as the current vehicle density) in some cases (such as when the road is congested). 100ms is changed to 200ms, so that more vehicles can be accommodated in the system while the total time slot resources remain unchanged. When the time slot resource allocation algorithm based on tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L29/08
CPCH04W72/04H04W72/0446
Inventor 赵毅房家奕冯媛赵丽李凤
Owner DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD