CN102291159A - Multiband intermediate-radio frequency device, emitting and receiving method and transceiver - Google Patents
Multiband intermediate-radio frequency device, emitting and receiving method and transceiver Download PDFInfo
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- CN102291159A CN102291159A CN2011102511421A CN201110251142A CN102291159A CN 102291159 A CN102291159 A CN 102291159A CN 2011102511421 A CN2011102511421 A CN 2011102511421A CN 201110251142 A CN201110251142 A CN 201110251142A CN 102291159 A CN102291159 A CN 102291159A
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Abstract
The invention provides a multiband intermediate-radio frequency device. The multiband intermediate-radio frequency device comprises a multiband intermediate-radio frequency unit and a multiband duplexer, wherein the multiband intermediate-radio frequency unit is used for converting an emitted baseband signal into a radio frequency signal and converting the received radio frequency signal into the baseband signal; and the multiband duplexer is used for filtering and combining a downlink radio frequency signal emitted by the multiband intermediate-radio frequency unit and an uplink radio frequency signal received by the multiband intermediate-radio frequency unit. The invention also provides an emitting and receiving method of multiband intermediate-radio frequency as well as a multiband transceiver. According to the multiband intermediate-radio frequency device, the emitting and receiving method and the multiband transceiver provided by the invention, a multimode and multiband base station can be realized through software configuration so as to support multiple systems and have larger bandwidth range and the functions of smooth evolution and the like; and equipment production cost, physical distribution cost, inventory cost and maintenance cost are reduced.
Description
Technical field
The present invention relates to moving communicating field, specifically, relate to radio-frequency unit, launching technique and method of reseptance and multi-band transceiver in a kind of multiband.
Background technology
The evolution of mobile communication technology requires cordless communication network that the service quality of faster data speed and Geng Gao can be provided, and the fast development of Internet of Things and cloud computing covers full frequency band and resource-sharing becomes the trend that future network develops.Full frequency band covers the performances such as the availability of frequency spectrum, power consumption efficiency and full frequency band resource-sharing efficient that the dynamic frequency spectrum deployment function that needs Radio Access Network to have intelligence improves network, this just requires network to have multimode, multiband, characteristics such as multi-functional, and can pass through the software smooth upgrade.
As shown in Figure 1, be traditional multi-band transceiver structural representation, among the figure, the system of each frequency band is separate, Base Band Unit, middle radio frequency unit and duplexer all can only be handled a band signal, and handling multiband is to need a plurality of different independently systems, like this, different frequency bands makes the base station model more and more, has increased production, logistics, stock and the maintenance cost of equipment.Radio frequency unit all is based on soft base station platform in the present multicarrier Multi-Mode Base Station, because hardware bandwidth and limited efficiency, it can only realize the software configurable functionality of partial-band.
Based on the problems referred to above, but be necessary to propose the wireless system of radio frequency reprovision in a kind of multiband.
Summary of the invention
The object of the present invention is to provide radio-frequency unit, launching technique and method of reseptance and multi-band transceiver in a kind of multiband, can realize multimode and multiband base station by software arrangements, make it possess functions such as supporting multiple standard, bigger bandwidth range and smooth upgrade; Simultaneously, reduce device fabrication, logistics, stock and maintenance cost.
For solving above technical problem, the invention provides radio-frequency unit in a kind of multiband, comprising: radio frequency unit, multiband duplexer in the multiband,
Radio frequency unit in the described multiband is used for the baseband signal of emission is converted to radiofrequency signal and the radiofrequency signal that receives is converted to baseband signal;
Described multiband duplexer is used for the downlink radio-frequency signal of multiband radio frequency unit emission and the up radiofrequency signal of reception are carried out filtering and close the road processing.
Further, radio frequency unit comprises in the described multiband: Digital IF Processing module, digital to analog converter, emission radio frequency processing module and broadband power amplifier module,
Described Digital IF Processing module is used for the baseband signal of emission is carried out the digital medium-frequency signal processing and the digital medium-frequency signal that receives is converted to baseband signal;
Described digital to analog converter module is used for digital medium-frequency signal is converted to analog signal;
Described emission radio frequency processing module is used for the radiofrequency signal of the analog after the digital-to-analogue conversion for emission;
Described broadband power amplifier module is used for that the radiofrequency signal of emission radio frequency processing module output is carried out power amplification and handles.
Further, radio frequency unit comprises in the described multiband: received RF processing module and analog to digital converter module,
Described received RF processing module, the radiofrequency signal that is used to receive the multiband duplexer is treated to the analog signal before the analog to digital converter;
Described analog to digital converter module, being used for analog signal conversion is digital medium-frequency signal.
For solving above technical problem, the invention provides a kind of multi-band transceiver, it is characterized in that, comprising: radio-frequency unit and broad-band antenna in multimode Base Band Unit, the multiband,
Described multimode Base Band Unit is used for producing the baseband signal of multiband radio-frequency unit input and receives the baseband signal of handling radio-frequency unit output in the multiband;
Radio-frequency unit in the described multiband be used for the baseband signal that the multimode Base Band Unit produces is converted to the downlink radio-frequency signal of emission, and the up radiofrequency signal that broad-band antenna is received is converted to baseband signal;
Described broad-band antenna is used for that the downlink radio-frequency signal that the multiband radio-frequency unit is launched is converted to electromagnetic wave and launches, and the electromagnetic wave that receives is converted to the up radiofrequency signal that radio-frequency unit receives in the multiband.
Further, radio-frequency unit comprises in the described multiband: radio frequency unit and multiband duplexer in the multiband,
Radio frequency unit in the described multiband is used for the baseband signal of emission is converted to radiofrequency signal and the radiofrequency signal that receives is converted to baseband signal;
Described multiband duplexer is used for the downlink radio-frequency signal of multiband radio frequency unit emission and the up radiofrequency signal of reception are carried out filtering and close the road processing.
For solving above technical problem, the invention provides the launching technique of radio frequency in a kind of multiband, comprising:
The mode parameter of radio frequency unit and multiband duplexer in the configuration multiband;
Downgoing baseband signal to radio frequency unit emission in the multiband carries out descending middle radiofrequency signal processing;
Launch by broad-band antenna after the filtering of downlink radio-frequency signal process multiband duplexer.
Further, described downgoing baseband signal to radio frequency unit emission in the multiband carries out descending middle radiofrequency signal to be handled, and specifically comprises:
Downgoing baseband signal to radio frequency unit emission in the multiband carries out descending digital medium-frequency signal processing;
Descending digital medium-frequency signal after will handling through descending digital medium-frequency signal is converted to descending analog signal;
Descending analog signal is converted to descending middle radiofrequency signal through radio frequency processing in descending;
Descending middle radiofrequency signal after the radio frequency processing in descending is carried out power amplification to be handled.
For solving above technical problem, the invention provides the method for reseptance of radio frequency in a kind of multiband, comprising:
The radiofrequency signal that antenna receives is treated to up radiofrequency signal through the multiband diplexer filter;
Radiofrequency signal is converted into up baseband signal through radio frequency processing in up in up;
Choosing corresponding Base Band Unit handles the uplink baseband signal.
Further, described up middle radiofrequency signal is converted into up baseband signal through radio frequency processing in up, specifically comprises:
Up radiofrequency signal is converted into up analog if signal through radio frequency processing in up;
Up analog if signal is converted to the upstream digital intermediate-freuqncy signal through analog to digital conversion;
The upstream digital intermediate-freuqncy signal is the uplink baseband signal through upstream digital intermediate-freuqncy signal treatment conversion.
With respect to prior art, radio-frequency unit, launching technique and method of reseptance and multi-band transceiver in the multiband provided by the invention, realize multimode and multiband base station by software arrangements, make it possess functions such as supporting multiple standard, bigger bandwidth range and smooth upgrade; Hardware bandwidth and efficiency limitations, among others overcome present soft base station platform owing to can only realize the software configurable functionality shortcoming of partial-band; The performances such as the availability of frequency spectrum, power consumption efficiency and full frequency band resource-sharing efficient of network have been improved; The production of reduction equipment, logistics, stock and maintenance cost.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes a part of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of traditional a kind of multi-band transceiver;
Fig. 2 is the structural representation of a kind of multi-band transceiver provided by the invention;
Fig. 3 is the structural representation of radio-frequency unit in a kind of multiband provided by the invention;
Fig. 4 is the frequency domain response schematic diagram of multiband duplexer provided by the invention;
Fig. 5 is the flow chart of the launching technique of radio frequency in a kind of multiband provided by the invention;
Fig. 6 carries out the flow chart that descending middle radiofrequency signal is handled for the downgoing baseband signal to emission in the launching technique of radio frequency in a kind of multiband provided by the invention;
Fig. 7 is the flow chart of the method for reseptance of radio frequency in a kind of multiband provided by the invention;
Fig. 8 is for being converted into the process chart of up baseband signal to the up middle radio frequency processing of process in the method for reseptance of radio frequency in a kind of multiband provided by the invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 2, the invention provides a kind of multi-band transceiver, this multi-band transceiver comprises: radio-frequency unit 20, broad-band antenna 30 in multimode Base Band Unit 10, the multiband.
Described multimode Base Band Unit 10 is used for producing the baseband signal of multiband radio-frequency unit 20 inputs, and receives the baseband signal of handling radio-frequency unit 20 outputs in the multiband; This multimode Base Band Unit 10 can be handled the many baseband signals as Band1-Band N.
Radio-frequency unit 20 in the described multiband, are used for the baseband signal that multimode Base Band Unit 10 produces is converted to the downlink radio-frequency signal of emission, and the up radiofrequency signal that broad-band antenna 30 is received is converted to baseband signal; Radio-frequency unit 20 can be supported that single-emission and double-receiving, two are two and receives and function such as frequency band switching in this multiband.
Described broad-band antenna 30 is used for that the downlink radio-frequency signal that multiband radio-frequency unit 20 is launched is converted to electromagnetic wave and launches, and the electromagnetic wave that receives is converted to the up radiofrequency signal that radio-frequency unit 20 receives in the multiband.
As shown in Figure 3, the invention provides radio-frequency unit in a kind of multiband.Radio-frequency unit 20 comprises in this multiband: radio frequency unit 22, multiband duplexer 24 in the multiband.
Described Digital IF Processing module 221 is used for the baseband signal of emission is carried out the digital medium-frequency signal processing and the digital medium-frequency signal that receives is converted to baseband signal;
Described digital to analog converter module 222 is used for digital medium-frequency signal is converted to analog signal;
Described emission radio frequency processing module 223 is used for the radiofrequency signal of the analog after the digital-to-analogue conversion for emission;
Described broadband power amplifier module 224 is used for that the radiofrequency signal of emission radio frequency processing module 223 outputs is carried out power amplification and handles, and is transferred to multiband duplexer 24 and carries out filtering and close the road and handle;
Described received RF processing module 226, the radiofrequency signal that is used to receive multiband duplexer 24 is treated to the analog signal before the analog to digital converter;
Described analog to digital converter module 225, being used for analog signal conversion is digital medium-frequency signal.
Described multiband duplexer 24 is used for the downlink radio-frequency signal of multiband radio frequency unit 22 emissions and the up radiofrequency signal of reception are carried out filtering and close the road processing.
As shown in Figure 4, be the frequency domain response schematic diagram of the multiband duplexer of the embodiment of the invention, the multiband duplexer is supported the uplink and downlink signals filter function of different frequency bands and standard.For example, system works when the LTE standard, the multiband duplexer be tuned to frequency domain characteristic be Band1 configuration; System works when the GSM standard, the multiband duplexer be tuned to frequency domain characteristic be Band2 configuration; System works when the UMTS standard, the multiband duplexer be tuned to frequency domain characteristic be Band3 configuration.By the frequency domain characteristic of above-mentioned tuning configuration duplexer, realize that a multiband duplexer supports multiple standard function.
As shown in Figure 5, the invention provides the launching technique of radio frequency in a kind of multiband, comprising:
Step 21, the downgoing baseband signal that radio frequency unit in the multiband is launched carries out descending digital medium-frequency signal processing;
As shown in Figure 7, the invention provides the method for reseptance of radio frequency in a kind of multiband, comprising:
Radio-frequency unit, launching technique and method of reseptance and multi-band transceiver in a kind of multiband provided by the invention are realized multimode and multiband base station by software arrangements, make it possess functions such as supporting multiple standard, bigger bandwidth range and smooth upgrade; Hardware bandwidth and efficiency limitations, among others overcome present soft base station platform owing to can only realize the software configurable functionality shortcoming of partial-band; The performances such as the availability of frequency spectrum, power consumption efficiency and full frequency band resource-sharing efficient of network have been improved; The production of reduction equipment, logistics, stock and maintenance cost.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard eliminating as to other embodiment, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of claims of the present invention.
Claims (9)
1. radio-frequency unit in the multiband is characterized in that, comprising: radio frequency unit, multiband duplexer in the multiband,
Radio frequency unit in the described multiband is used for the baseband signal of emission is converted to radiofrequency signal and the radiofrequency signal that receives is converted to baseband signal;
Described multiband duplexer is used for the downlink radio-frequency signal of multiband radio frequency unit emission and the up radiofrequency signal of reception are carried out filtering and close the road processing.
2. device as claimed in claim 1 is characterized in that, radio frequency unit comprises in the described multiband: Digital IF Processing module, digital to analog converter, emission radio frequency processing module and broadband power amplifier module,
Described Digital IF Processing module is used for the baseband signal of emission is carried out the digital medium-frequency signal processing and the digital medium-frequency signal that receives is converted to baseband signal;
Described digital to analog converter module is used for digital medium-frequency signal is converted to analog signal;
Described emission radio frequency processing module is used for the radiofrequency signal of the analog after the digital-to-analogue conversion for emission;
Described broadband power amplifier module is used for that the radiofrequency signal of emission radio frequency processing module output is carried out power amplification and handles.
3. device as claimed in claim 1 is characterized in that, radio frequency unit comprises in the described multiband: received RF processing module and analog to digital converter module,
Described received RF processing module, the radiofrequency signal that is used to receive the multiband duplexer is treated to the analog signal before the analog to digital converter;
Described analog to digital converter module, being used for analog signal conversion is digital medium-frequency signal.
4. a multi-band transceiver is characterized in that, comprising: radio-frequency unit and broad-band antenna in multimode Base Band Unit, the multiband,
Described multimode Base Band Unit is used for producing the baseband signal of multiband radio-frequency unit input and receives the baseband signal of handling radio-frequency unit output in the multiband;
Radio-frequency unit in the described multiband be used for the baseband signal that the multimode Base Band Unit produces is converted to the downlink radio-frequency signal of emission, and the up radiofrequency signal that broad-band antenna is received is converted to baseband signal;
Described broad-band antenna is used for that the downlink radio-frequency signal that the multiband radio-frequency unit is launched is converted to electromagnetic wave and launches, and the electromagnetic wave that receives is converted to the up radiofrequency signal that radio-frequency unit receives in the multiband.
5. transceiver as claimed in claim 4 is characterized in that, radio-frequency unit comprises in the described multiband: radio frequency unit and multiband duplexer in the multiband,
Radio frequency unit in the described multiband is used for the baseband signal of emission is converted to radiofrequency signal and the radiofrequency signal that receives is converted to baseband signal;
Described multiband duplexer is used for the downlink radio-frequency signal of multiband radio frequency unit emission and the up radiofrequency signal of reception are carried out filtering and close the road processing.
6. the launching technique of radio frequency in the multiband is characterized in that, comprising:
The mode parameter of radio frequency unit and multiband duplexer in the configuration multiband;
Downgoing baseband signal to radio frequency unit emission in the multiband carries out descending middle radiofrequency signal processing;
Launch by broad-band antenna after the filtering of downlink radio-frequency signal process multiband duplexer.
7. method as claimed in claim 6 is characterized in that, described downgoing baseband signal to radio frequency unit emission in the multiband carries out descending middle radiofrequency signal to be handled, and specifically comprises:
Downgoing baseband signal to radio frequency unit emission in the multiband carries out descending digital medium-frequency signal processing;
Descending digital medium-frequency signal after will handling through descending digital medium-frequency signal is converted to descending analog signal;
Descending analog signal is converted to descending middle radiofrequency signal through radio frequency processing in descending;
Descending middle radiofrequency signal after the radio frequency processing in descending is carried out power amplification to be handled.
8. the method for reseptance of radio frequency in the multiband is characterized in that, comprising:
The radiofrequency signal that antenna receives is treated to up radiofrequency signal through the multiband diplexer filter;
Radiofrequency signal is converted into up baseband signal through radio frequency processing in up in up;
Choosing corresponding Base Band Unit handles the uplink baseband signal.
9. method as claimed in claim 8 is characterized in that, described up middle radiofrequency signal is converted into up baseband signal through radio frequency processing in up, specifically comprises:
Up radiofrequency signal is converted into up analog if signal through radio frequency processing in up;
Up analog if signal is converted to the upstream digital intermediate-freuqncy signal through analog to digital conversion;
The upstream digital intermediate-freuqncy signal is the uplink baseband signal through upstream digital intermediate-freuqncy signal treatment conversion.
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Cited By (3)
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| CN102664683A (en) * | 2012-04-27 | 2012-09-12 | 北京汉铭通信有限公司 | Remote signal processing method and remote unit used in remote optical fiber type wireless distribution systems |
| CN104901752A (en) * | 2015-05-07 | 2015-09-09 | 中国联合网络通信集团有限公司 | Method and device for calculating isolation bandwidth of combiner |
| CN106656243A (en) * | 2015-10-27 | 2017-05-10 | 中兴通讯股份有限公司 | Multi-band transceiver and multi-band radio frequency signal sending and receiving method |
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| CN201523456U (en) * | 2009-09-15 | 2010-07-07 | 福建三元达通讯股份有限公司 | GSM digital frequency-selecting optical fiber repeater with upstream noise suppression function |
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| CN1943125A (en) * | 2004-02-26 | 2007-04-04 | 诺基亚公司 | Method of configuring base station, and base station |
| CN101176267A (en) * | 2004-11-05 | 2008-05-07 | 高通股份有限公司 | Frequency agile transceiver for use in a multi-band handheld communications device |
| CN1917685A (en) * | 2005-08-17 | 2007-02-21 | 三星电子株式会社 | Multi-mode-multi-band wireless transceiver |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102664683A (en) * | 2012-04-27 | 2012-09-12 | 北京汉铭通信有限公司 | Remote signal processing method and remote unit used in remote optical fiber type wireless distribution systems |
| CN104901752A (en) * | 2015-05-07 | 2015-09-09 | 中国联合网络通信集团有限公司 | Method and device for calculating isolation bandwidth of combiner |
| CN106656243A (en) * | 2015-10-27 | 2017-05-10 | 中兴通讯股份有限公司 | Multi-band transceiver and multi-band radio frequency signal sending and receiving method |
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Application publication date: 20111221 |