CN201491291U - Single-antenna base-station signal receiving/transmitting device - Google Patents
Single-antenna base-station signal receiving/transmitting device Download PDFInfo
- Publication number
- CN201491291U CN201491291U CN2009201606136U CN200920160613U CN201491291U CN 201491291 U CN201491291 U CN 201491291U CN 2009201606136 U CN2009201606136 U CN 2009201606136U CN 200920160613 U CN200920160613 U CN 200920160613U CN 201491291 U CN201491291 U CN 201491291U
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- signal
- base station
- duplexer
- single antenna
- signal receiving
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Abstract
The utility model provides a single-antenna base-station signal receiving/transmitting device, which comprises a single antenna and a duplexer that can receive and transmit signals simultaneously, wherein the duplexer is connected with the signal antenna by a switching-over structure; the duplexer is connected with a signal receiving module and a signal transmitting module that are arranged on a base station respectively; and a micro-strip line access is arranged between the switching-over structure and the signal receiving module. In the utility model, as the switching over between the duplexer and a micro-strip line can be realized by the switching-over structure, the receiving/transmitting can be completed by one single antenna independently, and the frequency calibration function of the indoor micro-micro base station can be realized.
Description
Technical field
The utility model relates to a kind of single antenna base station signal R-T unit, particularly is applied to a kind of single antenna base station signal R-T unit of the indoor femto base station of various standards under the mode of frequency division duplexing.
Background technology
At present, indoor femto base station is more and more favored because cost is low, the signal specific aim is good.Indoor femto base station adopts two kinds of signal receiving antenna and signal transmitting antennas at present, and this structure makes indoor femto base station volume big and very not attractive in appearance.When people use single antenna construction in trial, the realization that but can't solve indoor femto base station frequency calibration function.
The utility model content
The technical problems to be solved in the utility model provides a kind of base station signal R-T unit that had not only used single antenna but also can realize the frequency calibration function.
In order to address the above problem, the utility model provides a kind of single antenna base station signal R-T unit, comprise the single antenna and the duplexer that can carry out receiving and transmitting signal simultaneously, described duplexer links to each other with described single antenna by switching construction, described duplexer also links to each other with signal receiving module and signal transmitting module on the base station respectively, also is provided with the microstrip line path between described switching construction and described signal receiving module.
Further, described switching construction is first change over switch.
Further, between described microstrip line path and described signal receiving module, also be provided with second change over switch.
Further, described switching construction is a coupler.
The utlity model has following advantage:
1, the utility model switches between duplexer and microstrip line by switching construction, both can realize that single antenna finishes transmitting-receiving separately, can realize the frequency calibration function of indoor femto base station again;
2, the utility model realizes that single antenna finishes transmission-receiving function, makes the reduction of indoor femto base station system cost, smaller volume, profile more attractive in appearance.
Description of drawings
Below in conjunction with accompanying drawing execution mode of the present utility model is described further:
Fig. 1 shows the signal flow schematic diagram the when base station is busy among first kind of embodiment of the utility model;
Fig. 2 shows the signal flow schematic diagram the when base station is not busy among first kind of embodiment of the utility model;
Fig. 3 shows the signal flow schematic diagram the when base station is busy among second kind of embodiment of the utility model;
Fig. 4 shows the signal flow schematic diagram the when base station is not busy among second kind of embodiment of the utility model.
Embodiment
As Fig. 1-shown in Figure 4, the utility model comprises the single antenna 1 and the duplexer 2 that can carry out receiving and transmitting signal simultaneously, duplexer 2 links to each other with single antenna 1 by switching construction 4, and duplexer 2 also passes through RX interface 21 and TX interface 22 and links to each other with signal receiving module 31 and signal transmitting module 32 on the base station respectively.Duplexer 2 can carry out signal reception and signal transmission simultaneously, makes signal of base station reception and signal send and is undertaken by duplexer 2 one, and this moment, single antenna 1 can be finished signal of base station reception and two kinds of functions of signal transmission.
Because indoor femto base station also needs to receive at one's leisure macro base station signal on every side, carry out frequency calibration, but it is inequality to receive the signal frequency range that receives when macro base station signal and indoor femto base station do during frequency calibration, and the signal frequency range of reception when the path of the signal receiving module 31 of femto base station is can only be by indoor femto base station busy in the communication chamber on the duplexer 2, the signal in the time of but can't be by frequency calibration.
In the utility model, also be provided with the microstrip line path 5 in parallel with duplexer 2 between switching construction 4 and received signal processing module 31, microstrip line path 5 two ends link to each other with switching construction 4 and signal receiving module 31 respectively.Microstrip line path 5 can switch between duplexer 2 and microstrip line path 5 when indoor femto base station is busy, not busy by switching construction 4 by the frequency calibration signal, uses the problem that can not carry out frequency calibration behind the duplexer 2 with regard to having solved indoor femto base station.
As shown in Figure 1 and Figure 2, among first kind of embodiment, switching construction 4 is first change over switch 41.Between microstrip line path 5 and described signal receiving module 31, also be provided with second change over switch 42.
When indoor femto base station hurried, signal flow as shown in Figure 1 among first kind of embodiment.This moment, first change over switch 41 and second change over switch 42 all were communicated with duplexer 2.The signal that indoor femto base station receives enters duplexer 2 through first change over switch 41 after being received by single antenna 1, and handles the back and send from RX interface 21 in duplexer 2, arrives the signal receiving module 31 of indoor femto base station through second change over switch 42.
The transmission signal of indoor femto base station enters the TX interface 22 of duplexer 2 through signal transmitting module 32, and after handling in duplexer 2, enters single antenna 1 through first change over switch 41, outwards sends this signal by single antenna 1.
When indoor femto base station was not busy, signal flow as shown in Figure 2 among first kind of embodiment.This moment, first change over switch 41 and second change over switch 42 all were communicated with microstrip line path 5.The frequency calibration signal that indoor femto base station receives through first change over switch 41, microstrip line path and second change over switch, 42 entering signal receiver modules 31, carries out frequency calibration after being received by single antenna 1.At this moment, signal transmitting module 32 is not worked.
First change over switch 41 and second change over switch 42 all adopt software control, to realize automation.
As shown in Figure 3, Figure 4, among second kind of embodiment, switching construction 4 is a coupler 43.
When indoor femto base station hurried, signal flow as shown in Figure 3 among second kind of embodiment.After the signal that indoor femto base station receives is received by single antenna 1, arrive coupler 43, and be communicated to duplexer 2 by two interface channels of RFIN431, RFOUT432 in the coupler 43, and send from RX interface 21 after in duplexer 2, handling, arrive the signal receiving module 31 of indoor femto base station.Some directly passes through microstrip line path 5 arriving signal receiver modules 31 from the coupled end 433 of coupler 43 received signal.
The transmission signal of indoor femto base station enters the TX interface 22 of duplexer 2 through signal transmitting module 32, and after handling in duplexer 2, two interface channels of RFOUT432, RFIN431 enter single antenna 1 in coupler 43, outwards send this signal by single antenna 1.
When indoor femto base station was not busy, signal flow as shown in Figure 4 among second kind of embodiment.Two interface channels of RFIN431, RFOUT432 in this moment coupler 43 since duplexer 2 thereafter receive the frequency range differences can't be by the frequency calibration signal.The frequency calibration signal that indoor femto base station receives arrives coupler 43 after being received by single antenna 1, can only be sent by the coupled end 433 of coupler 43, through microstrip line path 5 arriving signal receiver modules 31, carries out frequency calibration.At this moment, signal transmitting module 32 is not worked.
In addition, if coupler 43 adopts the mode that is integrated in microstrip line coupling on the veneer more further to reduce the cost and volume herein.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection range of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. single antenna base station signal R-T unit, it is characterized in that: comprise the single antenna (1) and the duplexer (2) that can carry out receiving and transmitting signal simultaneously, described duplexer (2) links to each other with described single antenna (1) by switching construction (4), described duplexer (2) also links to each other with signal receiving module (31) and signal transmitting module (32) on the base station respectively, also is provided with microstrip line path (5) between described switching construction (4) and described signal receiving module (31).
2. single antenna base station signal R-T unit as claimed in claim 1 is characterized in that: described switching construction (4) is first change over switch (41).
3. single antenna base station signal R-T unit as claimed in claim 2 is characterized in that: also be provided with second change over switch (42) between described microstrip line path (5) and described signal receiving module (31).
4. single antenna base station signal R-T unit as claimed in claim 1 is characterized in that: described switching construction (4) is a coupler (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201606136U CN201491291U (en) | 2009-06-25 | 2009-06-25 | Single-antenna base-station signal receiving/transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201606136U CN201491291U (en) | 2009-06-25 | 2009-06-25 | Single-antenna base-station signal receiving/transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491291U true CN201491291U (en) | 2010-05-26 |
Family
ID=42430154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201606136U Expired - Lifetime CN201491291U (en) | 2009-06-25 | 2009-06-25 | Single-antenna base-station signal receiving/transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201491291U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104639201A (en) * | 2013-11-06 | 2015-05-20 | 中国移动通信集团公司 | Radio-frequency front end of base station, and base station |
-
2009
- 2009-06-25 CN CN2009201606136U patent/CN201491291U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104639201A (en) * | 2013-11-06 | 2015-05-20 | 中国移动通信集团公司 | Radio-frequency front end of base station, and base station |
| CN104639201B (en) * | 2013-11-06 | 2018-02-23 | 中国移动通信集团公司 | A kind of radio-frequency front-end of base station and base station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Assignor: ZTE Corporation Contract record no.: 2015440020319 Denomination of utility model: Single-antenna base-station signal receiving/transmitting device Granted publication date: 20100526 License type: Common License Record date: 20151123 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |