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Method and system for realizing WCDMA and common frequency band GSM system shared antenna

A GSM system and common antenna technology, applied in the field of WCDMA and GSM systems, can solve the problems of large system changes, multiple filter combiners, and poor practicability, and achieve the effect of small changes and cost reduction.

Active Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. The transmission signals of the WCDMA base station and the GSM base station are directly combined by a broadband combiner, which will cause a signal power loss of more than 3dB for each of the two systems, which affects its original coverage or quality for the GSM system. For the WCDMA system, It also seriously limits its ability to cover
[0013] 2. Broadband combiners can only be realized by branch line couplers or broadband coupled directional couplers, and now there are few manufacturers of such devices.
[0023] 1. Adopting the method of combining transceivers after separation and duplexing, although it can avoid large signal power loss to the two systems, the system changes are very large, and the feasibility is not strong
[0024] 2. More filter combiners are required, and the cost is higher

Method used

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  • Method and system for realizing WCDMA and common frequency band GSM system shared antenna
  • Method and system for realizing WCDMA and common frequency band GSM system shared antenna
  • Method and system for realizing WCDMA and common frequency band GSM system shared antenna

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Embodiment Construction

[0041] A specific example of the present invention is image 3 shown. The system includes three parts: a WCDMA base station, a GSM base station and an antenna. The antenna includes an antenna main collection branch 308-1 and an antenna diversity branch 308-2. The WCDMA base station includes a transmitting module 301-1, a transceiver duplexer 302-1, a low noise amplifier (LNA) 304-1, a splitter 305-1, a receiving processing module 306-1 and a diversity receiving module 307-1. The GSM base station includes a transmitting module 301-2, a transceiver duplexer 302-2, a low noise amplifier (LNA) 304-2, a splitter 305-2, a receiving processing module 306-2 and a diversity receiving module 307-2.

[0042] Further, the connection of each module of the system is: the transmitting module 301-1 of the WCDMA base station is connected to the antenna diversity branch 308-2 through the transceiver duplexer 302-1; the splitter 305-1 is connected to the diversity receiving module 307 of the GS...

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Abstract

The present invention discloses WCDMA and same frequency range GSM system shared aerial implementation method and system. WCDMA and GSM master set transmitting signal direct entry aerial to radiate. GSM base station transmitting / receiving diplexer separate aerial master set sub circuit received signal into GSM system master set receiving signal and WCDMA system diversity reception signal through splitter, WCDMA base station transmitting / receiving diplexer separate antenna diversity sub circuit received signal into GSM system master set receiving signal and WCDMA system diversity reception signal through splitter. The present invention does not use sub circuit device.

Description

technical field [0001] The invention relates to WCDMA and GSM systems in the communication field, in particular to a method and a system for realizing the common antenna of WCDMA and GSM systems in the same frequency band. Background technique [0002] In the R5 standard of the WCDMA system, it is considered to extend the frequency of WCDMA to the frequency band of GSM. Therefore, there is a possibility of using the same frequency band with the GSM system in the WCDMA system. In the application of the common frequency band, the construction of the common antenna of WCDMA and GSM systems will bring Advantages in the following aspects: 1. Small project volume; 2. Low construction cost; 3. Less interference. [0003] Therefore, in the construction process of WCDMA and GSM in the same frequency band, it will be a very inevitable choice for the two systems to share the antenna. [0004] Among the common-antenna solutions for WCDMA and GSM systems in the same frequency band, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08H04W88/08
Inventor 江立红
Owner HUAWEI TECH CO LTD
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