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Adaptive power saving method for wireless mobile packet communication system

A group communication and power saving technology, applied in wireless communication, radio/inductive link selection and arrangement, power management, etc., can solve problems such as low efficiency and energy waste, achieve reasonable sleep time, improve utilization rate, and improve power utilization efficiency effect

Active Publication Date: 2007-08-29
上海润欣科技股份有限公司
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Problems solved by technology

[0014] It can be seen from this that the provisions on power saving class 1 in the protocol are too simple and inefficient, especially in the BE business, because there is no corresponding provision for the value of the initial sleep window, so when the business When less and the initial sleep window is small, the mobile station will frequently enter the listening window, which will cause a lot of energy waste

Method used

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  • Adaptive power saving method for wireless mobile packet communication system
  • Adaptive power saving method for wireless mobile packet communication system
  • Adaptive power saving method for wireless mobile packet communication system

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Embodiment Construction

[0040] Figure 1 and Figure 2 reflect the performance comparison between the adaptive power saving method in the present invention and the traditional method proposed in the IEEE802.16e protocol.

[0041] It can be seen from Figure 1 that after adopting the adaptive power saving method, the sleep window reaches an appropriate size quickly, thereby reducing the number of times of entering the listening state during the sleep operation cycle, and the smaller the traffic volume, the more obvious the performance advantage.

[0042] Figure 2 shows the corresponding energy consumption comparison. Since the energy consumed in the listening state accounts for a high proportion of the total energy consumption, as the number of times of entering the listening state decreases, the total energy consumption in the entire sleep operation cycle Energy consumption is also significantly reduced.

[0043] Fig. 3 is a processing flowchart of the adaptive power saving method based on IEEE 802.16e ...

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Abstract

When selecting size of initial sleep window, the disclosed self-adapting sleep mechanism of comm system based on wireless mobile packets does not take a fixed value, instead select a suitable value based on previous features of window. Mean while, adjusting size of sleep window by self-adaptation, the invention reduces unnecessary conversion from sleep window to listening window of mobile station (MS) effectively so as to raise efficiency for saving power, prolong service time of batteries of MS, and raise use ratio of wireless resource. The method includes procedures: after MS awakens from a time of sleep mode, through a certain time of no service state, and enters into next time of sleep mode, the invention feeds back parameters of previous sleep state and traffic performance parameters to base station. Based on received information, base station calculates size of initial sleep window, and adjusted size of sleep window, and informs them to MS.

Description

technical field [0001] The invention belongs to the field of wireless communication, and is not only suitable for IEEE802.16e wireless metropolitan area network, but also suitable for various next-generation wireless mobile communication systems that use sleep mode as an energy saving mechanism, such as 3G long-term evolution system (3G LTE), wireless local area network, etc. . Background technique [0002] In the future mobile communication system, with the enhancement of terminal mobility requirements, battery, as the main energy provider of mobile station equipment, its service life has gradually become one of the focuses of people's attention. The main development trend of the future mobile communication system is to face a large number of non-real-time packet data services. Different from traditional circuit domain services, the most notable feature of packet data services is the bursty transmission of a large amount of high-speed data, which will cause the terminal to...

Claims

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Application Information

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IPC IPC(8): H04Q7/32H04L12/28H04L29/06H04W52/02
CPCY02B60/50Y02D30/70
Inventor 彭木根张艺杨常青吴振华王文博
Owner 上海润欣科技股份有限公司
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