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Electricity-saving system and method of mobile station

A power saving method and technology for mobile stations, applied in the direction of radio/induction link selection arrangement, sustainable building, energy reduction, etc., can solve problems such as increasing power consumption

Inactive Publication Date: 2008-01-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the IEEE 802.11 protocol, the indefinite period of time is not defined. Usually, the indefinite period of waiting time is greater than the centralized coordination function frame interval (Point Coordination Function Inter-Frame Space, PIFS), so that the mobile station cannot Time to enter power saving mode and increase power consumption

Method used

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  • Electricity-saving system and method of mobile station
  • Electricity-saving system and method of mobile station

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Embodiment Construction

[0013] Please refer to FIG. 1 , which is a schematic diagram of an application environment of a mobile station power saving system 10 in an embodiment of the present invention. In this embodiment, the mobile station power saving system 10 is applied to a wireless local area network system. The wireless local area network system includes an access point 100 and a plurality of mobile stations 200. The access point 100 establishes communication connections with the plurality of mobile stations 200 through the 802.11 protocol. The mobile stations 200 can be notebook computers, personal digital assistants (Personal Digital Assistant, PDA), mobile phones and other mobile electronic devices.

[0014] Please refer to FIG. 2 , which is a block diagram of a mobile station power saving system 10 in an embodiment of the present invention.

[0015] The mobile station power saving system 10 includes: a cache module 120 , a judging module 140 , a timing module 160 and a query module 220 . ...

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Abstract

A mobile station power saving method comprises that a mobile station is switched from a low-power mode to an active mode and sends inquiry frame to the access point; the access point sends inquiry confirmation frame to the mobile station after receiving the inquiry frame and starts to timing; the access point judges whether any data needs to be sent to the mobile station; if any, the access point sends the data to the mobile station in the scheduled time; the mobile station enters into low-power mode after receiving all the data sent by the access point. The invention also discloses a mobile station power saving system by using the mobile station power saving method. The mobile station power saving system and the power saving method in the invention reduces the time of the mobile station entering the low-power mode and thus reducing the mobile station energy consumption, as each time the mobile station is connected with the access point, the access point sends data frame or frame without data indicated to the mobile station in the shortest time as is prescribed.

Description

technical field [0001] The invention relates to a wireless local area network, in particular to a mobile station power saving system and method in the wireless local area network. Background technique [0002] In WLAN, power consumption is one of the key performances of a mobile station. Therefore, the IEEE 802.11 protocol defines the function of supporting the power saving mode (Power Saving Mode, PSM) of the mobile station. [0003] The mobile station in the power saving mode will periodically switch to the active mode (Active State) and send a quality of service poll (Quality of Service Poll, QoS-Poll) frame to the access point to determine whether the access point has data to send to mobile station. After receiving the quality of service polling frame sent by the mobile station, the access point sends a polling confirmation frame to the mobile station and inquires whether there is any data sent to the mobile station in the cache. If there is data sent to the mobile st...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04Q7/32
CPCY02B60/50Y02D30/70
Inventor 唐正文
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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