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Apparatus and method for enhancing transfer rate in a wireless local area network (LAN)

A technology of wireless network system and sending station, which is applied in the direction of wireless network protocol, wireless communication, transmission system, etc., and can solve problems such as difficult to use direct link

Inactive Publication Date: 2005-02-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with DLP, it is difficult to take advantage of the direct link if there is an increase in contention due to the presence of many stations in the BSS

Method used

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  • Apparatus and method for enhancing transfer rate in a wireless local area network (LAN)
  • Apparatus and method for enhancing transfer rate in a wireless local area network (LAN)
  • Apparatus and method for enhancing transfer rate in a wireless local area network (LAN)

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Embodiment Construction

[0031] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0032] Figure 4 The data transfer processing performed in DLP mode 2 by a plurality of stations according to the present invention is illustrated. The present invention generally includes operation using the three DLP modes. Mode 1 is a scheme proposed by the 802.11e group in which stations in the BSS are connected to a direct link and the stations compete with other stations in the BSS to then share a channel. Depending on the mode selected by a station using DLP, DLP mode 2 or DLP mode 3 using an independent channel is employed. In DLP mode 2, a station is connected with a direct link by using DLP, and competes with other stations in the BSS. If the station loses the contention, it does not wait a NAV period, but increases the transmission rate of the DLP station using the DLP channel. If the station is requested to communicate wi...

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Abstract

An apparatus and a method for presenting a novel format of a media access control (MAC) frame that enables the use of a direct link protocol (DLP) and multiple channels, thereby reducing contention among stations, and enhancing a transfer rate by using the MAC frame format in infrastructure-based wireless communications. A DLP station of the present invention includes a channel-switching module for switching a channel by writing a new channel number in a DLP request frame; a mode-switching module for switching a DLP mode by writing a new mode number in the DLP request frame; and a MAC frame-generating module for generating various MAC frames including the DLP request frame.

Description

technical field [0001] The present invention relates to an apparatus and method for enhancing a transfer rate in a wireless local area network (LAN) using a distributed coordination function (DCF). In particular, the present invention relates to an apparatus and method for presenting a novel format of Medium Access Control (MAC) frames capable of using Direct Link Protocol (DLP) and multiple channels, thereby reducing contention between stations, and The transmission rate is increased by using the MAC frame format in infrastructure-based wireless communication. Background technique [0002] As networks are increasingly constructed in a wireless manner, and the need to transmit large amounts of multimedia data continues to rise, it is necessary to study efficient transmission methods in wireless LANs. For the transfer of various multimedia data, there are two methods for improving the performance of the wireless LAN. The first method is a method of securing Quality of Servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/16H04L12/28H04L12/54H04L69/14H04W72/02H04W72/04H04W74/00H04W74/02H04W74/04H04W80/02H04W84/12H04W92/18
CPCH04W74/002H04W84/12H04W80/02H04W74/08H04W72/04H04W88/02
Inventor 陈浩
Owner SAMSUNG ELECTRONICS CO LTD
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