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Collision avoidance for traffic in a wireless network

A wireless network and business technology, applied in the field of communication, can solve problems such as extra delay of business data, transmission failure, and consumption of broadcast time

Inactive Publication Date: 2009-06-03
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Collisions typically result in transmission failures for all affected stations, which may subsequently require those stations to retransmit
Retransmissions consume broadcast time (a valuable network resource), consume battery power at stations, cause additional delays in traffic data, and cause other deleterious effects

Method used

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  • Collision avoidance for traffic in a wireless network
  • Collision avoidance for traffic in a wireless network
  • Collision avoidance for traffic in a wireless network

Examples

Experimental program
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Embodiment Construction

[0020] The word "exemplary" is used herein to mean "serving as an instance, instance, illustration". Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

[0021] The collision avoidance techniques described herein can be used in various wireless networks, such as WLAN, WWAN, WMAN, WMAN, WPAN, etc. A WLAN may implement one or more standards in the IEEE 802.11 family of standards for WLANs developed by the Institute of Electrical and Electronics Engineers (IEEE).

[0022] FIG. 1 shows a wireless network 100 having an access point (AP) 110 and a plurality of stations (SAT) 120 . In general, a wireless network can include any number of access points and any number of stations. A station is a device that can communicate with another station via a wireless medium. The terms "wireless medium," "wireless channel," and "channel" are often used interchangeably. A station may commu...

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PUM

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Abstract

The present invention discloses techniques for avoiding collision of traffic in a wireless network. A station detects for synchronization of its traffic with traffic of other stations. The station may detect for synchronization based on, e.g., percentage of first transmission failures, counters indicative of statistics of transmitted frames, and / or other information. The station may confirm synchronization of its traffic, e.g., by monitoring for traffic from another station during a service period for the station. The station adjusts transmission of its traffic when synchronization is detected to avoid collision with the traffic of the other stations. The station may delay transmission of its traffic by a predetermined amount of time, by a pseudo-random amount, or until after the other stations finish their transmissions.

Description

[0001] Priority claim based on 35 U.S.C. §119 [0002] This application claims the benefit of U.S. Provisional Patent Application No. 60 / 802,635, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates generally to the field of communications, and more particularly to techniques for transmitting data in wireless communications networks. Background technique [0004] Wireless networks are widely used to provide various communication services such as voice, video, packet data, and so on. These networks may be able to support communication for multiple users by sharing available network resources. Examples of such networks include Wireless Local Area Networks (WLANs), Wireless Wide Area Networks (WWANs), Wireless Metropolitan Area Networks (WMANs), and Wireless Personal Area Networks (WPANs). The terms "network" and "system" are often used interchangeably. [0005] A wireless network may include any number of acces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04W74/08H04W84/18
CPCH04W74/0816H04W84/18H04W56/0045H04L12/28H04W28/10H04W56/00H04L65/00
Inventor A·梅朗S·K·苏瑞纳尼L·拉朱
Owner QUALCOMM INC
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