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Multi-carrier base station amplifier

A technology for amplifiers and base stations, which is applied in the direction of electronic tube amplifiers, advanced technology, and sustainable communication technology. It can solve problems such as excessive wiring, damage to system reliability, and influence on the internal structure of base stations, so as to reduce power loss and avoid adverse effects. , the effect of reducing the complexity of the system

Inactive Publication Date: 2006-07-12
深圳市银天科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its disadvantage is that a power amplifier can only amplify one carrier (see below Figure 1 ), so the input signal must be connected to the signal behind the TRU inside the base station, resulting in too many connections, and affecting the internal structure of the base station, destroying the reliability of the system, such as figure 2 shown

Method used

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Embodiment 1

[0022] Embodiment 1, a multi-carrier base station amplifier, the circuit structure is as follows image 3 As shown, it is suitable for base stations with separate interfaces for transmitting (TX) and receiving (RX) signals. It includes an input terminal, an output terminal and a linear power amplifier SLPA, the input terminal is externally connected to the TX interface of the base station cabinet, and Txi (i=1~N) is the N-way carrier signal output by the base station; the SLPA performs N-way mixed carrier signal input Amplify, the output end outputs the amplified mixed signal to the tower top amplifier of the base station and transmits it through the antenna.

[0023] The schematic diagram of the connection between the above-mentioned multi-carrier base station amplifier and the corresponding type of base station is as follows: Figure 4 shown. The SLPA used in the multi-carrier base station amplifier is a power amplifier with intermodulation distortion less than -50dBc when...

Embodiment 2

[0024] Embodiment 2, another kind of multi-carrier base station amplifier, the circuit structure is as follows Figure 6 shown, for base stations that use the same interface for transmit (TX) and receive (RX) signals. Including input terminal, output terminal, linear power amplifier SLPA, duplexer a, duplexer b, DC stabilized power supply (not shown in the figure), bypass switch c, bypass switch f, adjustable signal attenuator e. The input end is externally connected to the TX / RX interface of the base station cabinet, and Txi (i=1~N) is the N-way carrier signal output by the base station; The terminal is connected to the output terminal, the SLPA is connected between a pair of shunt ends of duplexers a and b, and the other pair of shunt ends of duplexers a and b are directly connected; bypass switches c and f are connected through cables ; The adjustable signal attenuator e is connected between the combiner end of the duplexer a and the bypass switch c; the DC stabilized pow...

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Abstract

Present invention discloses a multicarrier base station amplifier. It contains input end, output port and linear power amplifier, said input end external connected with multicarrier output interface of base station cabinet, said linear power amplifier amplifying inputted multiple path mixing carrier signal, said output port outputting amplified mixing signal to tower top amplifier or aerial of base station tower top by cable. Said invention can directly connect with base station cabinet down outputting port to avoid harmful effect to base station interior, at the same time greatly reduces power loss, reduces system complexity, and is easy installation and maintenance.

Description

technical field [0001] The invention relates to mobile communication network equipment, in particular to a multi-carrier base station amplifier. Background technique [0002] With the increase of users' demand for mobile communication and the improvement of network quality requirements, mobile operators are striving to achieve "seamless coverage". Generally, they can adopt the method of adding base stations and installing repeaters, but adding base stations requires a lot of investment. In areas with low user density and low traffic volume, the utilization rate is low and channel resources are wasted; using repeaters can only solve local problems, and it is easy to cause self-excitation and interference, which will reduce the quality of network operation. Base station amplifiers become an effective means of extending base station coverage in areas with relatively low user density and large areas. [0003] The earliest base station amplifier is described in Patent No. CN0125...

Claims

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Application Information

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IPC IPC(8): H04Q7/30H03F3/02H04W88/08
CPCY02D30/70
Inventor 李学军
Owner 深圳市银天科技有限公司
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