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Enhanced active scanning in wireless local area networks

An active scanning, network technology, applied in wireless communication, network topology, electrical components, etc., can solve problems affecting user experience and so on

Inactive Publication Date: 2015-01-14
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length of time (eg, up to several seconds) required by IEEE 802.11 to establish an initial connection to a user device can negatively impact user experience

Method used

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  • Enhanced active scanning in wireless local area networks
  • Enhanced active scanning in wireless local area networks
  • Enhanced active scanning in wireless local area networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0311] Embodiment 1. A method for active scanning in a network comprising two transmitters, the method comprising:

[0312] detecting a first probe request with a scan target originating from a first transmitter;

[0313] desiring to send a probe request from a second transmitter to the scan target; and

[0314] Canceling a second probe request on condition that the second transmitter detects the first probe request.

Embodiment 2

[0315] Embodiment 2. The method of embodiment 1, wherein the relative received signal strength indicator (RSSI) of the first probe request frame is not less than a predefined threshold.

Embodiment 3

[0316] Embodiment 3. The method of embodiment 1, wherein the probe request is transmitted by the first station, and a probe response is sent from the access point in response to the first probe request.

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PUM

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Abstract

A method for active scanning in a wireless network may include two transmitters. In such a method, the following steps may take place: detecting a first probe request having a scanning target originating from a first transmitter; desiring to send a probe request to the scanning target from a second transmitter; and canceling the second probe request on a condition that the second transmitter detects the first probe request.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application No. 61 / 642,275 filed May 3, 2012, U.S. Provisional Patent Application No. 61 / 668,285 filed July 5, 2012, U.S. Provisional Patent Application No. 61 / 668,285 filed September 4, 2012 Application No. 61 / 696,567 and the benefit of U.S. Provisional Patent Application No. 61 / 749,064, filed January 4, 2013, the contents of which are hereby incorporated by reference in their entirety. Background technique [0003] In IEEE 802.11, there are factors that negatively affect performance and user experience in a variety of different scenarios. The length of time (eg, up to several seconds) required for IEEE 802.11 to establish an initial connection to a user equipment can negatively impact user experience. For example, when using an interactive session (eg, Skype video), the connection cannot be maintained when switching from another network such as third generation (3G) to W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16
CPCH04W48/16H04W72/04H04W84/12H04L63/162H04W12/062H04W48/10H04W48/14H04L2101/622H04W88/08H04W72/0446
Inventor 张国栋L·王X·王J·S·利维R·L·奥勒森
Owner INTERDIGITAL PATENT HLDG INC