802.11u protocol based terminal energy-saving power consumption management method for WLAN

A power consumption management method and terminal technology, which are applied in network topology, energy consumption reduction, and energy saving ICT, etc., can solve problems such as energy waste, increase in the number of retransmissions, and erroneous transmission, so as to reduce collision probability, improve throughput, improve The effect of reducing the probability of collision

Inactive Publication Date: 2014-01-29
XI AN JIAOTONG UNIV
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Problems solved by technology

However, the author did not consider that when too many terminals are connected, the PSM will have a greater collision probability, resulting in an increase in the number of error transmissions and retransmissions, which is also a waste of energy.

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  • 802.11u protocol based terminal energy-saving power consumption management method for WLAN
  • 802.11u protocol based terminal energy-saving power consumption management method for WLAN
  • 802.11u protocol based terminal energy-saving power consumption management method for WLAN

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] The implementation scenario of the 802.11u protocol-based terminal energy saving and power consumption management method (Schedule-Aware Power Saving Mode, S-PSM) in the WLAN network provided by the present invention is as follows: In the WLAN network, the AP caches data for the access terminal STA, and the AP All terminal STAs support the 802.11u protocol, and the AP and terminal STAs exchange information through the GAS signaling in the 802.11u protocol. The states of the terminal STA are respectively: active state and sleep state. A terminal STA with buffered data in one transmission cycle can obtain one opportunity to receive data. When the AP has cached data of the terminal STA, the AP sends cached data information to the terminal STA through the GAS signaling defined in the 802.11u protocol, and informs the terminal STA that there is cached data...

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Abstract

Disclosed is an 802.11u protocol based terminal energy-saving power consumption management method for the WLAN. Terminals are only in an activated state or hibernating state; when accessed, the terminals are in the activated state; when cache data exists in an AP, a control information GAS signal is broadcasted to all terminals, and each terminal competes to transmit a GAS-Respond signal to the AP; a transmission sequence of the terminals is determined according to a first-come first-transmission algorithm; performing clock synchronization, and determining a sleep stage and an activated stage of each terminal in single transmission cycle; ending the single transmission cycle after the terminals finish single data receiving; starting next single transmission. The method has the advantages that the terminals can change in sleep and activated modes according to the sequence information transmitted by the AP, the terminals are prevented from being idle and wasting energy when awaiting idle channels, energy saving is especially evident when many APs are in service, and the method is significantly effective in energy saving compared to the traditional energy-saving method.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a terminal energy-saving and power consumption management method based on the 802.11u protocol in a WLAN network. Background technique [0002] With the continuous progress of society, the ideas of green environmental protection, energy saving and emission reduction have been deeply rooted in the hearts of the people. Today, with the continuous development and popularization of personal communication, while providing higher spectrum utilization, higher speed and richer multimedia services, the problem of terminal power consumption is particularly serious. In order to support terminal mobility to the greatest extent and ensure excellent user service experience, it is necessary to extend the battery life of the terminal as much as possible on the premise of ensuring the user service quality. Both the WLAN (Wireless Local Area Networks) system and the LTE (Long Ter...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W74/08H04W84/12
CPCY02B60/50Y02D30/70
Inventor 任品毅张迪杜清河孙黎
Owner XI AN JIAOTONG UNIV
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