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A method to realize time division synchronous CDMA repeater power saving

A technology of repeaters and time slots, which is applied in communication between multiple stations, energy consumption reduction, transmission control/equalization, etc., and can solve problems such as uneconomical, high power consumption, and high power consumption

Inactive Publication Date: 2007-05-16
WUHAN HONGXIN TELECOMM TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] For the repeater used in the third generation mobile communication system, its power consumption is mainly generated by the power amplifier, and the power consumed by the power amplifier accounts for more than 70% of the total power consumption of the repeater. At present, when the power amplifier has no input signal, There is also a large quiescent current, so the power consumption is relatively large, and this part of the power consumption is useless power consumption
This part of the power consumption also reduces the total efficiency of the repeater, which consumes a lot of power and is uneconomical.

Method used

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  • A method to realize time division synchronous CDMA repeater power saving

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Embodiment Construction

[0022] In order to make the solution of the present invention clearer, the present invention will be further described in detail below in conjunction with examples. Described in Figure 3:

[0023] In the first step, after the repeater device is turned on, it first obtains the synchronization with the base station signal by detecting the DwPTS time slot in the downlink signal. After synchronization, the repeater can obtain the time when each time slot of the signal passes through the repeater , and obtain the slot power of each slot through power detection;

[0024] In the second step, after the repeater equipment is synchronized with the base station signal, the specific positions of the first switching point and the second switching point are obtained according to the position information of the switching point, and the uplink and downlink are realized through the radio frequency switch in the repeater Conversion, turn off the downlink power supply during the uplink working ...

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Abstract

The related energy saving method for TD-SCDMA direct station comprises: starting direct station for signal synchronization, detecting every time slot power and the exact position of two switch points; then, using RF switch in direct station fro link circuit conversion; comparing the detected time slot power with threshold, real-time setting the business time slot into power supplying state if the slot power over threshold, or else closing power for the free time slot; re-controlling up-down switch time, and continual tracking to detect business occupancy condition. This invention reduces cost for provider and saves the direct station consumption mostly.

Description

technical field [0001] The invention relates to a method for realizing energy saving of a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) repeater. Background technique [0002] TD-SCDMA is one of the third-generation mobile communication air interface technical specifications officially released by the International Telecommunication Union ITU. Its key technologies include time-division duplex technology with adjustable uplink and downlink switching points, smart antenna technology, and joint detection technology. The advantages of TD-SCDMA are highlighted in the good balance between system anti-interference and system capacity, efficient support for mixed services, and the system itself has good sustainable development and technological evolution. [0003] The multiple access scheme of TD-SCDMA belongs to DS-SCDMA, the chip rate is 1.28Mc / s, the spread spectrum bandwidth is about 1.6MHz, and it adopts the TDD (Frequency Division Mu...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04B7/14H04B7/26
CPCY02D30/70
Inventor 杨义平李晟夏玄孙凯
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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