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Scheduled absence on a wireless local area network

A wireless local area network and missing technology, applied in wireless communication, network topology, network traffic/resource management, etc., can solve problems such as high overhead and low efficiency

Active Publication Date: 2015-10-28
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As such, the current method of the station notifying the access point before entering each individual absence period and upon return from each individual absence period is inefficient and overhead intensive

Method used

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  • Scheduled absence on a wireless local area network
  • Scheduled absence on a wireless local area network
  • Scheduled absence on a wireless local area network

Examples

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Embodiment Construction

[0026] Representative applications of systems, methods, apparatus, and computer program products according to the present disclosure are described in this section. These examples are provided only to add context and facilitate understanding of the described embodiments. It will therefore be apparent to one skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the embodiments. Other applications are also possible, such that the following examples should not be considered limiting.

[0027] In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which are shown by way of illustration specific embodiments according to which embodiments are described. While these embodiments have been described in sufficient detail to enable those skilled ...

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Abstract

A method for scheduling absence periods on a WLAN is provided. The method can include a WLAN station joining a WLAN served by a WLAN access point using an operating channel; formatting a message defining an absence schedule of absence periods during which the WLAN station will be off of the operating channel and unavailable to receive traffic on the operating channel; sending the message to the WLAN access point to register the absence schedule with the WLAN access point; and leaving and returning to the operating channel in accordance with the absence schedule after the absence schedule has been registered with the WLAN access point.

Description

technical field [0001] The described embodiments relate generally to wireless communications, and more particularly to setting absence periods on wireless local area networks (WLANs). Background technique [0002] Stations on a WLAN need to periodically leave the operating channel used by the access point of the WLAN to scan for other devices. In this way, the WLAN station can switch to other channels for a short period of time and then return to the operating channel, resulting in an absence period during which the WLAN station leaves the operating channel. To avoid data loss, the WLAN station has to inform the access point that it will leave the operating channel, so that the access point sends data to the WLAN station via the operating channel during the absence period. [0003] In current WLANs, a station can inform the access point before each absence period by setting a power management (PM) bit in a data frame sent to the access point. The WLAN station may then wait...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W60/02H04W88/02H04W84/12
CPCH04W72/12H04W28/06H04W84/12
Inventor P·B·万德瓦尔R·J·斯泰西
Owner APPLE INC