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IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation

A technology of network resources and source nodes, applied in the field of media access control layer, can solve the problems of high signaling overhead and end-to-end time extension, etc., and achieve the effect of low signaling overhead and short delay

Inactive Publication Date: 2012-07-11
SHENZHEN TINNO WIRELESS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose effective resource scheduling and a new three-way handshake mechanism in view of the existing IEEE802.

Method used

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  • IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation
  • IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation
  • IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation

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Experimental program
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Embodiment Construction

[0022] The invention proposes a collaborative distributed scheduling resource reservation method based on the IEEE802.16 Mesh network. After receiving the data slot request message from the upstream node, each node on the Mesh network path sends a request message to the downstream node while replying to the authorization message, to reserve a data slot for this service.

[0023] In order to realize the resource reservation scheme proposed by the present invention, the MSH-DSCH message of IEEE802.16 is firstly modified, and the modified MSH-DSCH message is shown in Table 1.

[0024] Table 1 Modified MSH-DSCH message format

[0025] sentence

size

note

MSH-DSCH_Message_Format(){

Management Message Type = 41

8 bits

Coordination Flag

1 bit

Grant / Request Flag

1 bit

Sequence counter

6 bits

No. Requests

4 bits

No.Availabilities

4 bits

No. Grants

6 bits

eReq / eG...

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Abstract

The invention discloses a Mesh network resource pre-reservation method based on IEEE802.16, relates to communication network technology, and provides a Mesh network collaborative distributed scheduled resource pre-reservation method based on IEEE802.16; after receiving data time slot request messages of upstream nodes, all nodes on a Mesh network path replies authorized messages and simultaneously sends request messages to downstream nodes, so as to pre-reserve data time slot for the business. Through effective resource scheduling, the IEEE802.16 Mesh network resource pre-reservation method for supporting multi-hop resource pre-reservation can realize low signaling overhead of three times of hand shaking and short end-to-end time delay. The method can be widely applied to the resource distribution of the wireless Mesh network.

Description

technical field [0001] The invention relates to the communication field, in particular to the media access control layer technology of a wireless Mesh network based on IEEE802.16. Background technique [0002] Currently, two general wireless Mesh networks are based on IEEE802.11 technology and IEEE802.16 technology respectively. The former has a demonstration network, while the latter is still in the research and development stage. In the existing Mesh (mesh network) network based on IEEE802.16, the MAC layer scheduling mechanism of the media access control layer (hereinafter referred to as "MAC layer") of the wireless Mesh network can be divided into centralized scheduling and distributed scheduling. Centralized scheduling means that the base station uniformly schedules the allocation of channel resources; distributed scheduling means that user stations can form their own Mesh network to communicate directly with each other, and their control signals are called by distribut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/20H04W28/26H04W40/04
Inventor 李云陈亮张欣刘期烈
Owner SHENZHEN TINNO WIRELESS TECH