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Terminal and method for actively scanning the terminal

An active scanning and terminal technology, applied in the field of communication, can solve problems such as channel resource waste

Active Publication Date: 2016-03-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the user terminal waits for a certain time for a response. After the user terminal finishes scanning the channel, the access point may continue to send probing messages to the user terminal because it does not know that the user has left, resulting in waste of channel resources.

Method used

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  • Terminal and method for actively scanning the terminal
  • Terminal and method for actively scanning the terminal
  • Terminal and method for actively scanning the terminal

Examples

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Embodiment Construction

[0017] In the following description, for purposes of illustration rather than limitation, specific details such as specific system architectures, interfaces, and techniques are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0018] The various techniques described in this article can be used in various wireless communication systems such as current 2G, 3G communication systems and next generation communication systems such as Global System for Mobile Communications, Code Division Multiple Access System, Time Division Multiple Access System, Wideband Code Division Multiple Access , frequency division multiple access sy...

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PUM

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Abstract

The embodiment of the present invention provides a feedback method for actively scanning a user terminal and an access point. The present invention relates to the field of communication. Cached heuristic response information can be cleared after a preset time is reached by a timer arrangedin the access point, so as to further reduce the overhead of channel resources. The feedback method for actively scanning a user terminal in this embodiment comprises: receiving a heuristic request message from the user terminal, the heuristic request message including a scanning time preset by the user terminal; generating and caching a heuristic response message for the heuristic request message; according to the received scanning time preset by the user terminal, setting and turning on the timer corresponding to the user terminal; and after it is determined that the timer reaches the preset scanning time and the heuristic response message is not sent to the user terminal, clearing the cached heuristic response message.

Description

technical field [0001] The invention relates to the communication field, in particular to a feedback method and an access point for actively scanning a user terminal. Background technique [0002] In a wireless local area network (Wireless Local Area Networks, WLAN), the basic service set (Basic Service Set, BSS) is a basic component of the wireless local area network. Access point (AccessPoint, AP). The scanning method is divided into two modes: active scanning and passive scanning. When the user terminal is in the active scanning mode, it sends a probe request message to the access point through unicast or broadcast on the channel, and then waits for a corresponding response within a certain period of time. The probe response information sent by the access point actively discovers the basic service set network and obtains the associated attributes of the basic service set network in this way. The test request message sent by the user terminal includes a service set ident...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/16
CPCH04W48/16
Inventor 杨国瑞姚宗明
Owner HUAWEI TECH CO LTD