CN102006659A - Mobile communication equipment with high transmitting power - Google Patents
Mobile communication equipment with high transmitting power Download PDFInfo
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- CN102006659A CN102006659A CN2010105263861A CN201010526386A CN102006659A CN 102006659 A CN102006659 A CN 102006659A CN 2010105263861 A CN2010105263861 A CN 2010105263861A CN 201010526386 A CN201010526386 A CN 201010526386A CN 102006659 A CN102006659 A CN 102006659A
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- mobile communication
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- communication terminal
- baseband
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Abstract
The invention discloses a mobile communication terminal. The mobile communication terminal comprises a baseband module, a transceiving module, a plurality of parallel power amplifiers and a front end module, wherein the baseband module processes audio signals into baseband signals; the transceiving module modulates the baseband signals into radio-frequency signals; the power amplifiers amplify the radio-frequency signals; and the front end module transmits the radio-frequency signals through an antenna. The transmitting power is enhanced by adopting the plurality of parallel power amplifiers so that mobile communication equipment designed or produced by using the mobile communication terminal can reach the transmitting power required by a global system for mobile communications for railway (GSM-R) system.
Description
[technical field]
The present invention relates to moving communicating field, particularly a kind of mobile communication equipment with high transmit power.
[background technology]
GSM-R(Global System for Mobile Communications for Railways) system is the comprehensive special digital mobile communication system that designs for railway communication specially.It is on the basis of second generation mobile communication technology gsm protocol standard, has added the special digital mobile communication system of functions such as location dependent addressing and functional addressing further, thereby more is applicable to the particularly needs of railway specific schedule communication of railway communication.Simply, the GSM-R system is a kind of improvement and concrete application the to gsm system.
Compare with the mobile communication equipment in the gsm system, the mobile communication equipment that uses in the GSM-R system mainly contains 3 differences: 1, the frequency band that frequency band that uses during communication and common GSM mobile handset are used incomplete same (in the technical standard of China, may still continue to use the frequency band that common GSM uses), and use the dedicated frequency section; 2, transmitting power requires to reach about 5 ~ 8W, is about three times of the transmitting power used of common GSM mobile handset; 3, sensitivity requires to reach-108dB, about the high 6dB of sensitivity requirement-102dB than common GSM mobile handset.In view of existing GSM mobile handset or similarly the sensitivity of mobile communication equipment can be more or less freely adjusts to-108dB about, therefore make the raising that greatest difficulty in the mobile communication equipment that uses in the GSM-R system is transmitting power.The transmitting power of at present existing GSM mobile handset or similar mobile communication equipment is generally about 2W.
Therefore be necessary to provide a kind of new technical scheme to solve above-mentioned shortcoming.
[summary of the invention]
The purpose of this part is to summarize some aspects of embodiments of the invention and briefly introduces some preferred embodiments.In this part and the application's specification digest and denomination of invention, may do a little simplification or omit avoiding the making purpose of this part, specification digest and denomination of invention fuzzy, and this simplification or omit and can not be used to limit the scope of the invention.
The object of the present invention is to provide the mobile communication equipment of a kind of GSM-R of being applicable to system.
In order to reach purpose of the present invention, the invention provides a kind of mobile communication equipment, described mobile communication equipment comprises: baseband module is a baseband signal with Audio Signal Processing; Transceiver module is modulated to radiofrequency signal with described baseband signal; The power amplifier that several are in parallel amplifies described radiofrequency signal; And front-end module, described radiofrequency signal is launched by antenna.
Further, described mobile communication terminal is used for the GSM-R system.
Further, described several are 2 or 3, and the tranmitting frequency of described mobile communication terminal is 5 ~ 8W.
Further, described several power amplifiers in parallel are subjected to the control signal of described baseband module and work.
Further, described transceiver module also comprises low noise amplifier, and when described front-end module received radiofrequency signal by antenna, described low noise amplifier amplified the back with the radiofrequency signal that receives and continues to handle for described transceiver module.
Further, described transceiver module is demodulated into baseband signal with the radiofrequency signal that receives, and described then baseband module is an audio signal with described base band signal process.
Compared with prior art, the present invention adopts the power amplifier of a plurality of parallel connections to strengthen transmitting power, the present invention is designed or the mobile communication equipment produced can reach the desired transmitting power of GSM-R system.
[description of drawings]
In conjunction with reaching ensuing detailed description with reference to the accompanying drawings, the present invention will be more readily understood, the structure member that wherein same Reference numeral is corresponding same, wherein:
Fig. 1 is the block diagram of the mobile communication equipment in one embodiment of the present of invention.
[embodiment]
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Mobile communication equipment among the present invention adopts the power amplifier of a plurality of parallel connections to strengthen the transmitting power of self.Thereby the 2-4 that the transmitting power that makes described mobile communication equipment is brought up to existing mobile communication equipment is doubly, goes for GSM-R(Global System for Mobile Communications for Railways) demand in the system.
Please refer to Fig. 1, it shows the block diagram of the mobile communication equipment 100 in one embodiment of the present of invention.Described mobile communication equipment 100 comprises baseband module 102, transceiver module 104, front-end module 106 and several power amplifiers 108.
Described baseband module 102 main Audio Signal Processing and the analyzing logic control of being responsible for described mobile communication equipment 100, described Audio Signal Processing is meant audio signal and baseband signal is transformed a series of processing procedures of carrying out mutually.Form and the adaptive channel equalizer of receive path channel separation, channel deciphering, channel-decoding and tone decoding etc. such as the pulse-code modulation of sendaisle, speech coding, chnnel coding, channel interleaving, single channel encryption, tdma frame.Described analyzing logic control is meant controls and manages the work of whole mobile communication equipment 100.Such as start operation, timing controlled, radio-frequency receiving-transmitting control, keyboard and display screen control etc.
The described transceiver module 104 main modulation and demodulation of being responsible for radiofrequency signal, the modulation of described radiofrequency signal are meant the baseband signal after described baseband signal 102 processing are modulated into radiofrequency signal, so that described front-end module 106 is launched.The demodulation of described radiofrequency signal is meant that described front-end module 106 is received radiofrequency signal to carry out demodulation and become baseband signal, so that described baseband module 102 is treated to audio signal.
Described front-end module 106 is piths of emission of radio frequency signals and reception, also comprises devices such as duplexer usually.Described front-end module 106 passes through antenna transmission with the radiofrequency signal of described transceiver module 104 modulation on the one hand, carries out demodulation for described transceiver module 104 radio signal transmission that receives on the other hand.
Especially, when described transceiver module 104 sends to described front-end module 106 with radiofrequency signal, also need power amplification through power amplifier 108, and then by described front-end module 106 emissions.Be different from prior art, adopt several power amplifiers in parallel 108 to replace traditional single power amplifier among the present invention.Behind the power amplifier 108 that adopts a plurality of parallel connections, it is big that the transmitting power of described mobile communication equipment can become, usually described several are 2 or 3, it is different and slightly variant to look different the power amplifier that embodiment takes, but is standard with the transmitting power requirement that can reach the GSM-R system all.
Described several power amplifiers in parallel 108 are subjected to the control signal of described baseband module 102 and work.In one embodiment, described baseband module 102 sends baseband signal to described transceiver module 104, described transceiver module 104 is modulated to described baseband signal the radiofrequency signal of GSM900 frequency band, after described several power amplifiers in parallel 108 amplified described radiofrequency signal, described front-end module 106 was launched described radiofrequency signal by antenna.
On the other hand, described transceiver module 104 also comprises low noise amplifier 110, after described front-end module 106 receives radiofrequency signal by antenna, described low noise amplifier 110 amplifies described radiofrequency signal, described then transceiver module 104 is demodulated into baseband signal with described radiofrequency signal, described baseband module 102 is that audio signal feeds back to the user with described base band signal process, has promptly finished the whole process of communication.
Will be appreciated that, can be identical between the power amplifier of described parallel connection is mutual, also can be different.Preferably, adopt preferably embodiment of identical power amplifier conduct as far as possible.
Above-mentioned explanation has fully disclosed the specific embodiment of the present invention.It is pointed out that and be familiar with the scope that any change that the person skilled in art does the specific embodiment of the present invention does not all break away from claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to described embodiment.
Claims (6)
1. mobile communication terminal is characterized in that it comprises:
Baseband module is a baseband signal with Audio Signal Processing;
Transceiver module is modulated to radiofrequency signal with described baseband signal;
The power amplifier that several are in parallel amplifies described radiofrequency signal; With
Front-end module is launched described radiofrequency signal by antenna.
2. according to the described mobile communication terminal of claim 1, it is characterized in that described mobile communication terminal is used for the GSM-R system.
3. according to the described mobile communication terminal of claim 1, it is characterized in that described several are 2 or 3, the tranmitting frequency of described mobile communication terminal is 5 ~ 8W.
4. according to the described mobile communication terminal of claim 1, described several power amplifiers in parallel are subjected to the control signal of described baseband module and work.
5. according to the described mobile communication terminal of claim 1, described transceiver module also comprises low noise amplifier, when described front-end module received radiofrequency signal by antenna, described low noise amplifier amplified the back with the radiofrequency signal that receives and continues to handle for described transceiver module.
6. according to the described mobile communication terminal of claim 5, described transceiver module is demodulated into baseband signal with the radiofrequency signal that receives, and described then baseband module is an audio signal with described base band signal process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105263861A CN102006659A (en) | 2010-10-29 | 2010-10-29 | Mobile communication equipment with high transmitting power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105263861A CN102006659A (en) | 2010-10-29 | 2010-10-29 | Mobile communication equipment with high transmitting power |
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| Publication Number | Publication Date |
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| CN102006659A true CN102006659A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105263861A Pending CN102006659A (en) | 2010-10-29 | 2010-10-29 | Mobile communication equipment with high transmitting power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260231A (en) * | 2013-05-24 | 2013-08-21 | 天津赛乐新创通信技术有限公司 | Method and device based on GSM-R base band module for improving and achieving 8W module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254219A (en) * | 1998-08-19 | 2000-05-24 | 哈里公司 | RF power amplifier control system |
| CN101106358A (en) * | 2007-08-01 | 2008-01-16 | 锐迪科无线通信技术（上海）有限公司 | Linear RF power amplifier circuit and its optimization method |
| CN101806641A (en) * | 2010-03-18 | 2010-08-18 | 中兴通讯股份有限公司 | Device and method for realizing overheating prompt of mobile terminal |
-
2010
- 2010-10-29 CN CN2010105263861A patent/CN102006659A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254219A (en) * | 1998-08-19 | 2000-05-24 | 哈里公司 | RF power amplifier control system |
| CN101106358A (en) * | 2007-08-01 | 2008-01-16 | 锐迪科无线通信技术（上海）有限公司 | Linear RF power amplifier circuit and its optimization method |
| CN101806641A (en) * | 2010-03-18 | 2010-08-18 | 中兴通讯股份有限公司 | Device and method for realizing overheating prompt of mobile terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260231A (en) * | 2013-05-24 | 2013-08-21 | 天津赛乐新创通信技术有限公司 | Method and device based on GSM-R base band module for improving and achieving 8W module |
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Application publication date: 20110406 |