Method for reducing medium access overhead in a wireless network

A media access and wireless network technology, which is applied in the direction of data exchange through path configuration, can solve the problems of expensive bandwidth and unutilized time limit, and achieve the goal of improving media utilization, improving network throughput, and reducing media access overhead Effect

Inactive Publication Date: 2007-03-07
PANASONIC CORP
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Problems solved by technology

[0019] The NAV process described above is expensive in terms of bandwidth on the medium in the case where for some reason the station that initiated the RTS frame fails to send after receiving the CTS
Such a situation would result in continued unutilization of the time period protected by the NAV

Method used

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  • Method for reducing medium access overhead in a wireless network
  • Method for reducing medium access overhead in a wireless network
  • Method for reducing medium access overhead in a wireless network

Examples

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no. 3 example

[0038] A third embodiment, having a similar purpose to the second embodiment, provides that the interpretation of the Interframe Space is signaled at the MAC / PHY boundary sublayer through a field in the preamble in the transmitted frame method.

no. 4 example

[0039] A fourth embodiment, having a similar purpose to the second embodiment, provides a method of signaling the interpretation of the interframe space on the PHY layer by transmission on additional subcarriers during frame transmission.

[0040] The fifth embodiment of the present invention provides a mechanism for dynamically changing the interpretation of the inter-frame space by interpreting the information contained in the media activity indicator (a virtual carrier-aware mechanism) to dynamically change the inter-frame space By way of explanation, this embodiment has a similar intent to the first embodiment.

[0041] The sixth embodiment of the present invention specifies a mechanism for dynamically changing the interpretation of the interframe space at a reset moment in the virtual carrier sensing mechanism, which has a similar intent to the first embodiment.

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Abstract

The invention includes methods for achieving efficient channel access in a wireless communications system. The invention is embodied in a wireless network adapter that is present in all stations belonging to the network. The invention describes methods by which access overheads may be reduced by introducing the concept of context sensitive frame timing - using which stations redefine and interpret frame timing depending on context and signaling. The result of realizing the invention is an improvement in medium utilization efficiency and consequently, an overall improvement in network throughput.

Description

technical field [0001] The present invention relates to a wireless communication method, and more particularly, the present invention relates to a method for reducing media access overhead in a wireless network. Background technique [0002] FIG. 1 depicts a wireless network 100 consisting of a plurality of stations 101 , 102 , 103 and 104 . Depending on the kind of network, basic or ad hoc, a wireless network may provide its stations with connections to other wireless or other networks. In an infrastructure network, this connection can usually be made by an access point (AP). In the example in Figure 1. Station 101 can be freely designated as an AP. Typically, a private network exists for local data transfer between multiple co-located devices. Therefore, private networks generally do not have links to external networks. [0003] media access control [0004] There are basically two different types of media access control (MAC) architectures: centralized control and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28
Inventor 拉赫尔·马利克陈必耀今村大地山崎纯也中胜义
Owner PANASONIC CORP
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