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Method and device for time slot allocation

A time slot allocation and time slot technology, applied in the field of communication, can solve the problems of limited network throughput and consumption of large bandwidth resources, and achieve the effect of reducing frequent switching and saving bandwidth resources

Inactive Publication Date: 2009-11-04
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing time slot allocation methods are limited to improve network throughput; and some technologies also require nodes to frequently switch between sending and receiving between adjacent time slots when forwarding data, and between adjacent time slots The delay introduced by switching between sending and receiving will consume a lot of bandwidth resources

Method used

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  • Method and device for time slot allocation
  • Method and device for time slot allocation

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Embodiment Construction

[0023] Hereinafter, the specific implementation manner of the present invention will be further described by taking a wireless MESH network based on the IEEE802.16 standard as an example in conjunction with the accompanying drawings and embodiments.

[0024] The wireless MESH network based on the IEEE802.16 standard uses TDMA as the multiple access mechanism, and its centralized scheduling adopts a topology tree structure. The root node of the topology tree is a gateway node, which is called MESH BS (hereinafter referred to as MBS, also known as MESH base station) , and other nodes are called MESH SS (hereinafter referred to as MSS, also known as MESH user station).

[0025] Embodiment 1 of the present invention provides a time slot allocation method, such as figure 1 shown, including the following steps:

[0026] Step S101, according to network topology information and time slot requirement information, determine a wireless link from a source node to a destination node as a ...

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Abstract

The embodiment of the invention discloses a method and a device for time slot allocation. The method comprises the following steps: ensuring one radio link from a source node to a target node as a radio link for sending data preferably according to network topology information and time slot requirement information and allocating time slot to the radio link for sending data preferably, wherein in the step of allocating time slot to the radio link for sending data preferably comprises the specific steps: allocating continuous time slot for the source node or a middle node between the source node and the target node to ensure that the source node or the middle node between the source node and the target node can send data to the next node continuously. By adopting the time slot allocation method of the embodiment of the invention, frequent switching in the data transmitting process is reduced, bandwidth resources are saved, and space reusability is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a time slot allocation method and device. Background technique [0002] As a new wireless network technology, wireless MESH network has recently received more and more attention. In a wireless MESH network, it usually includes multiple nodes, and the nodes communicate through multi-hops. In the network, usually one or more nodes are directly connected to the wired network (such as internet network, fixed-line core network, mobile communication core network, etc.), and these nodes are called gateway nodes; other nodes in the network must pass through multi-hop Only through the gateway node can access the wired network. [0003] In a wireless MESH network, the wireless channel is shared by all nodes, so a sharing mechanism must be provided to provide each node with an opportunity to access the wireless channel, so as to avoid mutual interference during communication...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/44H04L29/08H04W72/04
Inventor 刘圣海冯穗力叶梧庄宏成
Owner HUAWEI TECH CO LTD
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