Timeslot status maintenance method and device

A technology of time slot and state, applied in the field of network management, can solve the problem of inability to process information, and achieve the effect of efficient transmission service

Active Publication Date: 2014-03-26
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

[0014] Embodiments of the present invention provide a time slot state maintenance method and device supporting multiple time slots, which are used to solve the problems in the prior art when a node needs to use more than one time slot at the same time, which cannot be used by the node. information processing issues

Method used

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  • Timeslot status maintenance method and device
  • Timeslot status maintenance method and device
  • Timeslot status maintenance method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] refer to Figure 4 As shown, when the time slots used by node A include a self-occupied time slot, time slot 1, and the time slot used by node B itself is self-occupied time slot, time slot 2, the process of applying for a new time slot 5 is as follows:

[0055] Step 400: Node A maintains a corresponding slot state vector (table) for self-occupied slot 1.

[0056] The slot state vector (table) corresponding to the self-occupied slot 1 of node A is shown in Table 1. Among them, the self-occupied time slots and application time slots corresponding to each table are recorded as the associated time slots of this table, for example, in Table 1, the current self-occupied time slot of node A, time slot 1, is the associated time slot of node A .

[0057] Table 1

[0058] slot number

[0059] Step 410: Duplicate the time slot state vector (table) corresponding to self-occupied time slot 1 of node A, and generate the initial time slot state vector (table) correspondi...

Embodiment 2

[0067] refer to Figure 5As shown, when the self-occupied time slots of node A are time slot 1 and time slot 5, the self-occupied time slots of node B are time slot 2, and the time slot state information corresponding to time slot 3 and time slot 4 is idle, Node A independently updates the slot state vector (table) corresponding to self-occupied time slot 1 and the time slot state vector (table) corresponding to self-occupied time slot 5 according to the received FI sent by node B The process is:

[0068] Step 500: Node A receives the FI sent by Node B on a time slot not used by itself in the aforementioned frame period.

[0069] In the embodiment of the present invention, it is assumed that the FI sent by the Node B on the self-occupied time slot Slot 2 is as shown in Table 3.

[0070] table 3

[0071] slot number

1

2

3

4

5

slot occupancy status

10

10

00

00

10

Occupying the node's STI

ST...

Embodiment 3

[0086] refer to Figure 6 As shown, the self-occupied time slot of node A is time slot 1, and the self-occupied time slot of node B is time slot 2, and the time slot status information of other time slots in this frame cycle is idle, when node A intends to When slot 5 is used as the application time slot, node C uses time slot 5 as the self-occupied time slot. At this time, the processing process of node A for each time slot used by itself is as follows;

[0087] Step 600: Node A maintains a slot state vector (table) corresponding to self-occupied slot 1, and node A maintains a slot state vector (table) corresponding to application slot 5.

[0088] The time slot state vector (table) corresponding to node A's self-occupied time slot slot 1 is shown in Table 1, and the time slot state vector (table) corresponding to node A's application time slot is shown in Table 2.

[0089] Step 610: Node A receives the FI sent by Node B, and updates the time slot state vector (table) corresp...

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Abstract

The invention discloses a multi-timeslot supporting timeslot status maintenance method and device and aims to solve the problem that a node occupies multiple timeslots during information transmission. The method comprises the following steps: respectively maintaining corresponding timeslot status vector by a first node against all the timeslots used by the first node, wherein the timeslots used by the first node include self-occupied timeslots and/or applied timeslots; sending FI to other nodes by the first node at the self-occupied timeslots of each frame period, receiving FI sent by other nodes at non-self-occupied timeslots of each frame period, respectively and independently updating the timeslot status vector corresponding to each locally maintained timeslot according to the received FI. Due to the adoption of the technical scheme, the information processing problem caused by the reason that one node occupies multiple timeslots can be solved, and information transmission service can be offered to high-level services more flexibly and effectively.

Description

technical field [0001] The invention relates to the field of network management, in particular to a method and device for supporting time slot state maintenance. Background technique [0002] With the development of vehicle / road cooperative communication system and the gradual maturity of mobile ad hoc network technology, in order to realize real-time, dynamic and intelligent management of vehicles, Dedicated Short Range Communications (Dedicated Short Range Communications) for Internet of Vehicles has been specially developed internationally. , DSRC) protocol. DSRC organically connects vehicles with vehicles, vehicles and roadside information collection equipment through two-way transmission of information, and supports point-to-point and point-to-multipoint communication. [0003] The Mobile Slotted Aloha (Mobile Slotted Aloha, MS-ALOHA) mechanism is a DSRC MAC layer access and resource allocation mechanism based on time-sharing. Resource allocation is based on the frame ...

Claims

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Application Information

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