CN101179315B - Base station frequency point expanding system - Google Patents
Base station frequency point expanding system Download PDFInfo
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- CN101179315B CN101179315B CN2006101386137A CN200610138613A CN101179315B CN 101179315 B CN101179315 B CN 101179315B CN 2006101386137 A CN2006101386137 A CN 2006101386137A CN 200610138613 A CN200610138613 A CN 200610138613A CN 101179315 B CN101179315 B CN 101179315B
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- base station
- duplexer
- diversity
- frequency point
- antenna
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Abstract
The invention provides a system for expanding frequency points at a base station, which includes a first base station comprising a first diversity receiving channel and a first diplexer and a second base station comprising a second dominant set receiving channel and a second diplexer, wherein, the first diversity receiving channel is connected with the second diplexer, and the first diplexer is connected with the second dominant set receiving channel. The first base station and the second base station share a pair of dominant set and diversity receiving antenna for realizing the function of emitting without diversity while receiving the diversity, thus saving cost and proving flexibility for increasing frequency, expanding capacity and deploying of the base stations.
Description
Technical field
The present invention relates to moving communicating field, particularly, relate to a kind of base station frequency point expanding system that is used for mobile communication.
Background technology
In today of mobile communication technology high speed development, people also increase day by day to the demand of mobile communication system, and the performance quality of mobile communication system affects the service quality of radio communication more and more.Wherein, multicarrier transceiver is the important component part of mobile communication system, and the quality of its function, the height of cost have become the key factor of evaluation system quality.
At present, the multicarrier transceiver of most of mobile communication all adopts digital if technology.Because be subjected to the restriction of AD, DA device and power amplifier, when having only a transceiver radio-frequency channel, the interval of each intercarrier can not be very big.When needs are supported the pattern of frequency apart from each other, just need more than one transceiver radio-frequency channel.And, just need newly-increased base station to satisfy the demands for the base station that overloading one is fanned.
The mobile communication base station is adopted usually and is launched not diversity, receive diversity pattern.When carrier wave of transmitting-receiving, as shown in Figure 1, need two slave antennas, a duplexer, a transmission channel, two receive paths and a power amplifier.When receiving and dispatching two carrier waves of frequency apart from each other, as shown in Figure 2, just need fourth officer antenna, two duplexers, two transmission channels, four receive paths and two power amplifiers.This just makes that the base station cost is bigger, and when increasing dilatation frequently in the base station, need set up new antenna, has increased the base station equipment mounting hardness.
Therefore, need a kind of system that can reduce the support mobile communication base station frequency expansion of base station cost.
Summary of the invention
Main purpose of the present invention is to provide a kind of base station frequency point expanding system, and it can guarantee under the prerequisite that communication system performance does not descend when increasing dilatation frequently in the base station, need not newly-increased two slave antennas, thereby reduce the networking cost.
To achieve these goals, according to an aspect of the present invention, the invention provides a kind of base station frequency point expanding system, this system comprises: first base station comprises the first diversity reception passage and first duplexer; And second base station, comprise the second main collection receive path and second duplexer, wherein, the first diversity reception passage is connected to second duplexer, and first duplexer is connected to the second main collection receive path.
According to the present invention, first base station also comprises: first transmission channel, first main collection receive path, first power amplifier and first antenna.Second base station also comprises: second transmission channel, the second diversity reception passage, second power amplifier and second antenna.
According to an aspect of the present invention, the signal that is received by first antenna sends to the first main collection receive path and the second main collection receive path respectively as main collection received signal through first duplexer; The signal that is received by second antenna sends to the first diversity reception passage and the second diversity reception passage respectively as the diversity reception signal through second duplexer.
According to an aspect of the present invention, the reception output at first duplexer and second duplexer is provided with power splitter respectively.Perhaps, first duplexer and second duplexer have power splitter respectively.
In addition, the distance between first base station and second base station is less than 2 meters.
By technique scheme, the present invention has compared with prior art saved the number of employed antenna, has realized reducing the effect of base station cost.And when increasing dilatation frequently, only need original two antennas, therefore need not to set up new antenna, thereby reduced the base station equipment mounting hardness in the base station.In addition, the weight of base station integral body be can also alleviate, the iron tower that is used to erect a television antenna and the heavy burden of pole reduced.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the structure chart that adopts a base station to realize a carrier wave of transmitting-receiving in the prior art;
Fig. 2 shows the structure chart that two carrier waves of transmitting-receiving frequency apart from each other are realized in two base stations of available technology adopting;
Fig. 3 shows the base station frequency point expanding system according to the embodiment of the invention; And
Fig. 4 shows employing realizes two carrier waves of transmitting-receiving frequency apart from each other according to the base station frequency point expanding system of the embodiment of the invention structure chart.
Embodiment
Describe the present invention below with reference to the accompanying drawings in detail.
Fig. 3 shows the base station frequency point expanding system according to the embodiment of the invention.As shown in Figure 3, the system 30 of base station frequency point expansion according to an embodiment of the invention, comprise: the first base station 30A, it comprises first transmission channel 302, first power amplifier, 304, the first main collection receive path 306, the first diversity reception passage 308, first duplexer 310 and first antenna 312; And the second base station 30B, it comprises second transmission channel 322, second power amplifier, 324, the second main collection receive path 326, the second diversity reception passage 328, second duplexer 330 and second antenna 332.
The signal that is received by first antenna 312 sends to the first main collection receive path 306 and the main collection of second main collection receive path 326 conducts received signal respectively through first duplexer 310.
The signal that is received by second antenna 332 sends to the first diversity reception passage 308 and the second diversity reception passage 328 respectively as the diversity reception signal through second duplexer 330.
In addition, be respectively arranged with power splitter at the reception output of first duplexer 310 and second duplexer 330, alternatively, first duplexer 310 and second duplexer 330 have power splitter respectively.Preferably, the distance between first base station 30 and second base station 32 is within 2 meters.
Fig. 4 shows employing realizes two carrier waves of transmitting-receiving frequency apart from each other according to the base station frequency point expanding system of the embodiment of the invention structure chart.
Suppose that former base station A frequency is f1, newly-increased base station B frequency is f2.Utilize up main collection signal and the up diversity signal of frequency f 2 and the downstream signal of tranmitting frequency f1 of the ANT1 receive frequency f1 of base station A; Utilize up main collection signal and the up diversity signal of frequency f 1 and the downstream signal of tranmitting frequency f2 of the ANT2 receive frequency f2 of base station B.Frequency f 2 upward signals that the ANT1 of base station A receives are connected to the data feedback channel Rin of base station B by the radio frequency cable from Rout; Frequency f 1 upward signal that the ANT2 of base station B receives is connected to the data feedback channel Rin of base station A by the radio frequency cable from Rout.This connected mode only needs original two antennas, the shared a pair of master of base station A and base station B, diversity reception antenna, and the receive diversity of component frequency f1 and frequency f 2 is launched not diversity, and need not newly-increased antenna, and two base stations use antenna separately to transmit respectively.
Owing to need in duplexer, received signal be divided into two-way, need the extra power splitter that increases at the reception output of duplexer.Power splitter is positioned at low noise amplifier in radio frequency reception link after, can not worsen the noise factor of whole receiving system, so the receiving sensitivity of base station can not be affected.Alternatively, also can use the duplexer that has power splitter.
In the master of base station, diversity two-way received signal, the inside of base station of leading up to arrives receive path, another road arrives receive path by base station external radio frequency line, the channel gain of this reception link can reduce, need to regulate the line loss of numerical-control attenuator compensation base station external radio frequency line, keep the gain of two-way receive path consistent.Because the compensation range of numerical-control attenuator is limited,, shorten the length of external radio frequency line so the distance between two base stations should be controlled within 2 meters.
If to base station shown in Figure 3, i.e. spread spectrum increase-volume only needs new base station B of increase, changes the duplexer of former base station A simultaneously from upgrading base station shown in Figure 1, the radio frequency (RF) cable outside the base station as mentioned above.If to base station shown in Figure 3, promptly reduce antenna and reduce cost from upgrading base station shown in Figure 2, only need to change the duplexer of former two base station A, B, the radio frequency (RF) cable outside the base station is as mentioned above.
The device of the base station frequency point expansion that the present invention proposes uses a pair of antenna to realize launching the not function of diversity, receive diversity, provide cost savings, and the base station increases dilatation frequently, flexible configuration.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a base station frequency point expanding system is characterized in that, comprising:
First base station comprises first transmission channel, first power amplifier, the first main collection receive path, the first diversity reception passage, first antenna and first duplexer; And
Second base station comprises second transmission channel, second power amplifier, the second main collection receive path, the second diversity reception passage, second antenna and second duplexer,
Wherein, the described first diversity reception passage is connected to described second duplexer, and described first duplexer is connected to the described second main collection receive path, different frequencies is adopted with described second base station in described first base station, the signal that is received by described first antenna sends to the described first main collection receive path and the described second main collection receive path respectively as main collection received signal through described first duplexer, and the signal that is received by described second antenna sends to the described first diversity reception passage and the described second diversity reception passage respectively as the diversity reception signal through described second duplexer.
2. base station frequency point expanding system according to claim 1 is characterized in that, at the reception output of described first duplexer and described second duplexer power splitter is set respectively.
3. base station frequency point expanding system according to claim 1 is characterized in that, described first duplexer and described second duplexer have power splitter respectively.
4. base station frequency point expanding system according to claim 1 is characterized in that, the distance between described first base station and described second base station is less than 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101386137A CN101179315B (en) | 2006-11-08 | 2006-11-08 | Base station frequency point expanding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101386137A CN101179315B (en) | 2006-11-08 | 2006-11-08 | Base station frequency point expanding system |
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| Publication Number | Publication Date |
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| CN101179315A CN101179315A (en) | 2008-05-14 |
| CN101179315B true CN101179315B (en) | 2011-10-26 |
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| CN2006101386137A Expired - Fee Related CN101179315B (en) | 2006-11-08 | 2006-11-08 | Base station frequency point expanding system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548051A (en) | 2008-10-27 | 2012-07-04 | 华为技术有限公司 | Communication system, equipment and method |
| CN101895890B (en) * | 2010-05-06 | 2013-03-20 | 华为技术有限公司 | Method, device and system for treating multi-system signals |
| CN103616563B (en) * | 2013-11-12 | 2016-08-17 | 包头市稀宝博为医疗系统有限公司 | A kind of open type spectrometer receiving channel extension system |
| CN105530039B (en) * | 2015-12-23 | 2019-05-28 | 通号通信信息集团上海有限公司 | Combiner, combining device and signal are combined system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333606A (en) * | 2000-07-14 | 2002-01-30 | Lg电子株式会社 | Antenna sharing apparatus for base station in wide band CDMA system |
| CN1350407A (en) * | 2000-10-19 | 2002-05-22 | 华为技术有限公司 | Data transmission method and equipment between base band unit and MF unit in base station |
| CN1350409A (en) * | 2000-10-24 | 2002-05-22 | 深圳市中兴通讯股份有限公司 | Mobile communication base station antenna feeder system from omnidirectional 5 carrier frequencies to three-sector 24 carrier frequencies |
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- 2006-11-08 CN CN2006101386137A patent/CN101179315B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333606A (en) * | 2000-07-14 | 2002-01-30 | Lg电子株式会社 | Antenna sharing apparatus for base station in wide band CDMA system |
| CN1350407A (en) * | 2000-10-19 | 2002-05-22 | 华为技术有限公司 | Data transmission method and equipment between base band unit and MF unit in base station |
| CN1350409A (en) * | 2000-10-24 | 2002-05-22 | 深圳市中兴通讯股份有限公司 | Mobile communication base station antenna feeder system from omnidirectional 5 carrier frequencies to three-sector 24 carrier frequencies |
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| CN101179315A (en) | 2008-05-14 |
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