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Method and apparatus for transmitting signal via base station power emission channel

A transmission channel and signal transmission technology, which is applied in power management, device selection, wireless communication, etc., can solve problems such as waste of system resources, unbalanced use efficiency, interruption of transmission signals, etc., and achieve low power consumption requirements, improved reliability, and use The effect of improving efficiency

Inactive Publication Date: 2007-12-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a digital signal power amplifier is damaged or other parts of the channel fail during use, it may cause interruption of the transmission signal of a sector, which seriously affects the reliability of the entire base station system; when the power of the transmission signal of each sector is unbalanced, The use efficiency of digital signal power amplifiers is also unbalanced accordingly. At this time, the use efficiency of a certain digital signal power amplifier may be very low, resulting in waste of system resources; at the same time, because the use efficiency of each digital signal power amplifier is unbalanced, so in When configuring digital signal power amplifiers, each digital signal power amplifier must be designed according to the maximum power consumption, which makes the cost of digital signal power amplifiers higher

Method used

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  • Method and apparatus for transmitting signal via base station power emission channel
  • Method and apparatus for transmitting signal via base station power emission channel
  • Method and apparatus for transmitting signal via base station power emission channel

Examples

Experimental program
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Effect test

Embodiment 1

[0085] Embodiment 1: 3-sector base station power transmission channel

[0086] As shown in FIG. 3 , the power transmitting channel 300 is composed of a digital matrix 301 , digital signal power amplifiers 334 , 335 , 336 and a hybrid bridge matrix 337 .

[0087] The digital matrix 301 includes a first mixing unit 344 , a second mixing unit 345 , a third mixing unit 346 , a digital signal 30-degree phase shifter 332 and a digital signal negative 30-degree phase shifter 333 .

[0088] Wherein, the first mixing unit 344 includes digital signal duplicators 302, 303 and 1 / 2 digital signal limiters 305, 306, 307, 308, and also includes digital signal 90-degree phase shifters 311, 312 and digital signal combiner 314,315; the second mixing unit 345 includes digital signal duplicator 316,326 and 1 /  digital signal limiter 318,319,327,328, also includes digital signal 90 degree phase shifter 322,330 and digital signal combiners 329, 331; the third mixing unit 346 includes digital signa...

Embodiment 2

[0170] Embodiment 2: 3 sectors back up one power amplifier base station power transmission channel

[0171] In some important occasions, in order to ensure the stable load and normal working efficiency of the power transmission channel, a digital signal power amplifier is backed up and controlled by a switch; when a digital signal power amplifier fails, the digital signal is temporarily backed up The power amplifier does its job. The backup situation of general digital signal power amplifier is to carry out the backup of one digital signal power amplifier to the power transmission channel of 3 digital signal power amplifiers, make it become the power transmission channel with 4 digital signal power amplifiers.

[0172] As shown in FIG. 4 , the power transmitting channel 400 is composed of a digital matrix 401 , digital signal power amplifiers 442 , 443 , 444 , 445 and a hybrid bridge matrix 446 . Wherein, the digital matrix 401 includes a first mixing unit 453, a second mixin...

Embodiment 3

[0205] Embodiment 3: 4-sector base station power transmission channel

[0206] As shown in Figure 5, the principle of signal transmission in this embodiment is the same as that in Embodiment 2. The only difference between the two embodiments is that in Embodiment 2, at the front end of the power transmission channel, some signal input The port has no sector signal input, but is connected to a grounded matching load; correspondingly, at the rear end of the power transmission channel, the output port corresponding to the port connected to the matching load at the front end of the power transmission channel is also connected to a grounded matching load, and there is no Sector signal output. In this embodiment, each signal input port at the front end of the power transmission channel has a sector signal input; correspondingly, at the rear end of the power transmission channel, the output ports corresponding to each input port at the front end of the power transmission channel have...

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Abstract

The signal transmission method in power emitting channel of base station includes the separating second mixing treatment of N channel original signals of N sectors in digital signal mode to output N channel or more digital signals; the D / A conversion and power amplification of each of the output signals to obtain N channel or more analog signals; and the separating and mixing treatment of the analog signals to output N channel original signals. The present invention also discloses signal transmission device of power emitting channel in base station. Adopting the method and device of the present invention can raise the reliability and the use efficiency of the whole base station system, and lower the power consumption of each digital signal power amplifier.

Description

technical field [0001] The invention relates to a signal processing technology of a base station in a cellular mobile communication system, in particular to a method and a device for transmitting signals through a power transmission channel of a base station. Background technique [0002] At present, the base stations in the cellular mobile communication system transmit and receive signals in different sectors in many cases. Generally, the coverage of a base station can be divided into 3 sectors or 6 sectors, etc., and most of them are a base station. Coverage is 3 sectors. In addition, a power amplifier is configured in the transmission channel of the base station to amplify the power of the transmission signal. [0003] At present, there are generally two methods for amplifying the power of a signal by a signal transmission channel of a base station. The first method is: the digital signal of each sector becomes an analog signal after being processed by digital-to-analog...

Claims

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Application Information

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IPC IPC(8): H04Q7/30H04W52/52H04W88/08
Inventor 王强吴剑锋蒲涛
Owner HUAWEI TECH CO LTD
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