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Method and signaling procedure for transmission opportunity usage in a wireless mesh network

A wireless mesh network, transmission timing technology, applied in wireless communication, network topology, transmission system, etc.

Inactive Publication Date: 2009-05-13
INTERDIGITAL TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if both nodes on the link could re-use the existing 802.11n RDG protocol to arbitrate the use of a specific TxOP between them separately, the current mechanism cannot ensure contention-free communication between this pair because there is currently no method capable of communicating the changed application of the granted TxOP to at least the first-order neighbors

Method used

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  • Method and signaling procedure for transmission opportunity usage in a wireless mesh network
  • Method and signaling procedure for transmission opportunity usage in a wireless mesh network
  • Method and signaling procedure for transmission opportunity usage in a wireless mesh network

Examples

Experimental program
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Embodiment

[0054] 1. A method for communicating in a wireless mesh network, comprising:

[0055] Obtain a Transmission Opportunity (TxOP) including duration at the sender Mesh Point (MP); and

[0056] When the time used by the sender MP is shorter than the duration, the control right of the TxOP is exchanged to another MP.

[0057] 2. The method of embodiment 1, wherein the exchanging step includes indicating in a packet that control of the TxOP has been transferred.

[0058] 3. The method of embodiment 2, wherein the packet includes an enhanced mesh forwarding control header, the control header including reverse direction signaling information.

[0059] 4. The method as in any one of embodiments 2 and 3, wherein the packet includes a control field, wherein the control field includes reverse direction grant (RDG) signaling.

[0060] 5. The method of embodiment 4, wherein the control field further includes control signaling other than RDG signaling.

[0061] 6. The method of embodiment...

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Abstract

In accordance with a preferred embodiment, the present invention comprises a method for using the remaining TxOP time by the peer node to forward traffic to a different destination, a method for using the remaining TxOP time by the original node to send traffic to a different destination, a method for using the remaining TxOP time by a neighbor to send traffic to the original node, a method for using the remaining TxOP time by a neighbor to send traffic to another node, a method to signal the reuse rules of the remaining TxOP time, and a method to efficiently relinquish / truncate a TxOP to reset the NAV for the neighborhood.

Description

technical field [0001] The present invention relates to wireless communication systems. In particular, the present invention relates to a method and signaling procedure for transmission opportunity usage in a wireless mesh network. Background technique [0002] In a typical wireless local area network (WLAN) network, all devices compete for access to the wireless medium. The basic medium access control (MAC) contention mode is based on the carrier sense multiple access (CSMA) mechanism. In order to enhance the performance of CSMA on the wireless medium, some modifications have been proposed. For example, the original 802.11 standard (Rev1997) specified CSMA with collision avoidance (CSMA / CA), and the later 802.11 amendment specified enhanced features for providing better Quality of Service (QoS). [0003] Among the enhanced features introduced by 802.11e, one is the concept of Transmission Opportunity (TxOP). In TxOP, multiple packets can be transmitted in a grant time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L12/56
CPCH04W74/06H04W72/1263H04W99/00H04W84/18H04W72/04H04W84/12H04L12/28H04W88/02H04W72/20H04W72/0446H04W74/04H04W74/08H04W88/04
Inventor J·C·祖尼卡S·A·格兰希M·鲁道夫J·S·利维
Owner INTERDIGITAL TECH CORP
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