Method and equipment for realizing energy conservation of communication system

A communication system and equipment technology, applied in the field of communication, can solve the problems such as the inability to truly realize intelligent energy saving, the inability to apply micro-cell intelligent energy saving, and the limited application range, and achieve the effects of improving reliability, improving accuracy, and expanding the scope of application

Inactive Publication Date: 2011-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned micro cell intelligent energy saving scheme based on noise power detection has a limited application range. When the micro cell is not covered by the macro cell, this solution cannot be applied to realize the intelligent energy saving of the micro cell
In addition, when the external noise interference is large, the Femto Cell AP will be falsely activated due to the detection of high external noise, which cannot truly realize intelligent energy saving.

Method used

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  • Method and equipment for realizing energy conservation of communication system
  • Method and equipment for realizing energy conservation of communication system
  • Method and equipment for realizing energy conservation of communication system

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The coverage area of ​​a micro cell is small and the traffic distribution is uneven. For example, microcells covering office areas and commercial areas have relatively large traffic during the day, but little traffic at night; while microcells covering residential areas and hotels have less traffic during the day, but relatively large traffic at night. . In order to realize intelligent energy saving, the default state of the base station of the micro cell is the dormant state.

[0039] Such as figure 2 As shown, the smart energy-saving method for a base station of a micro cell provided in Embodiment 1 of the present invention includes the following operations:

[0040] S201. The micro cell base station in a dormant state periodically transmits a paging signal;

[0041] Wherein, the cycle Tc of sending the paging signal is N times the wireless frame length, N is a positive integer, and the specific length of Tc can be set according to the actual application scenario;...

Embodiment 2

[0050] Embodiment 2 of the present invention is an intelligent energy-saving method for a micro-cell base station in a WCDMA network, and its processing process is as follows: image 3 As shown, it specifically includes the following operations:

[0051] S301. The micro cell base station A in a dormant state periodically sends a paging signal on a paging common channel (PCH, PagingChannel);

[0052] Wherein, the default state of the micro cell base station A is an IDLE (sleeping) mode, and the downlink frame of the micro cell base station A and the macro network are synchronized.

[0053] S302, the small cell base station A detects whether the access preamble information returned by the user equipment is received, if received, execute S303, otherwise, return to execute S302 (can return to execute S302 immediately, or return after reaching a preset waiting time Execute S302);

[0054] Wherein, when a user equipment receives the paging signal, it will send access preamble info...

Embodiment 3

[0060] Due to the small coverage area of ​​the micro cell, in order to ensure that the communication service of the user equipment is not interrupted, after the above-mentioned base station is switched to the activated state, the base station of the adjacent cell of the base station may also be activated. Embodiment 3 of the present invention describes this process in detail, and its implementation is as follows Figure 4 As shown, including the following operations:

[0061] When the micro cell base station A is activated by the access network gateway, or when the micro cell base station A detects that a user equipment initiates a communication service when the micro cell base station A is in the activated state, then perform S401, the micro cell base station A reports activation request information to the micro cell access gateway ;

[0062] S402. The micro cell access gateway queries the status of the neighboring cell base stations of the micro cell base station A accordin...

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Abstract

The invention discloses a method for realizing energy conservation of a communication system. The method comprises the following steps of: getting a base station into a sleep state when no residence of user equipment in a cell is detected; receiving an response signal transmitted from the user equipment by the base station in the sleep state, wherein the response signal is transmitted after the user equipment receives a paging signal transmitted by the base station in a period which is N times the length of a radio frame; and switching the base station to an active state. The embodiment of the invention also provides an energy conservation base station and a micro-cell access gateway. Since whether the user equipment transmits the signal to a macro-network or not is not decisive, the application range is expanded. Since the access of the active state is directly determined according to the feedback of a user terminal, the residence of the user equipment in the micro-cell can be more accurately sensed; thus the accuracy of state switching is improved, and the reliability of intelligent energy conservation of the micro-cell is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and device for realizing energy saving in a communication system. Background technique [0002] Indoor communication based on micro cells has the characteristics of large contrast between day and night traffic. In addition, due to the small coverage of the micro cell, there is not always a need for communication. Therefore, realizing the smart energy saving of micro cells will become one of the main research topics of green communication technology. [0003] An existing indoor Femto Cell (picocell) AP (AccessPoint, wireless access point) energy saving solution based on noise power detection. The scheme works as follows: [0004] The Femto Cell AP and the macro base station work in different frequency bands. The Femto Cell AP can regard the signal sent by the user equipment to the macro network as noise, and judge whether there are u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W88/08H04W88/16
CPCH04W52/0206H04W84/045H04W24/02Y02B60/50H04W88/16Y02D30/70
Inventor 段晓明邓明毅刘子砚
Owner HUAWEI TECH CO LTD
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