CN104639201A - Radio-frequency front end of base station, and base station - Google Patents
Radio-frequency front end of base station, and base station Download PDFInfo
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- CN104639201A CN104639201A CN201310547485.1A CN201310547485A CN104639201A CN 104639201 A CN104639201 A CN 104639201A CN 201310547485 A CN201310547485 A CN 201310547485A CN 104639201 A CN104639201 A CN 104639201A
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Abstract
The present invention discloses a radio-frequency front end of a base station and the base station. The radio-frequency front end comprises a first radio-frequency module 100 which comprises: a first transmitting submodule 11, a first receiving submodule 12, a first coupling submodule 13 and a first single-pole double-throw switch 14, wherein when the base station transmits a signal, a first end 141 and a third end 143 of the first single-pole double-throw switch 14 are conductive; and when the base station receives a signal, a second end 142 and the third end 143 of the first single-pole double-throw switch 14 are conductive. Through adoption of the radio-frequency front end of the base station provided in the present invention, compared with the prior art, the number of transmitting and receiving channels in the radio-frequency front end module is reduced, thereby enabling simpler realization of a system and further reducing cost of hardware.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of radio-frequency front-end and base station of base station.
Background technology
At present, the distribution-type base station architecture that wireless communication field generally adopts, comprise baseband processing unit (BBU, Building Base Band Unit), remote radio unit (RRU) (RRU, Radio Remote Unit) and antenna three part, remote radio unit (RRU) comprises RF front-end module, typical time division duplex (TDD, Time Division Duplexing) in standard 8 passage base station, RF front-end module in RRU is except comprising 8 common transceiver channels, also need one for digital pre-distortion process (DPD, Digital Pre-Distortion) DPD feedback reception passage, and for the calibration transceiver channel of 8 common transceiver channel signal calibrations, like this, it is complicated that transceiver channel so many in RF front-end module makes system realize, and the hardware cost of system Construction is higher.
Summary of the invention
The embodiment of the present invention provides a kind of radio-frequency front-end and base station of base station, realizes the problem complicated, hardware cost is higher in order to solve the system caused because passage is more in the RF front-end module that exists in prior art.
The embodiment of the present invention provides a kind of radio-frequency front-end of base station, comprise: the first radio-frequency module 100, the first radio-frequency module 100 described comprises: first launches submodule 11, first receives submodule 12, first coupling submodule 13 and the first single-pole double-throw switch (SPDT) 14, wherein:
The signal that described first signal input part 111 launching submodule 11 exports for the RF small signals module receiving described base station, described first launches the be coupled signal input part 131 of submodule 13 of the signal output part 112 and described first of submodule 11 is connected, and described first is coupled the first signal output part 132 of submodule 13 for exporting signal to be transmitted;
The secondary signal output 133 of described first coupling submodule 13 is connected, for exporting coupled signal with the first end 141 of described first single-pole double-throw switch (SPDT) 14;
The signal output part 121 that second end 142 and described first of described first single-pole double-throw switch (SPDT) 14 receives submodule 12 is connected, and receives for receiving described first the Received signal strength that submodule 12 exports;
3rd end 143 of described first single-pole double-throw switch (SPDT) 14 is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end 141 of described first single-pole double-throw switch (SPDT) 14 and the 3rd end 143 conducting, when described base station received signal, the second end 142 of described first single-pole double-throw switch (SPDT) 14 and the 3rd end 143 conducting.
The radio-frequency front-end of the base station that the embodiment of the present invention provides, first single-pole double-throw switch (SPDT) 14 is connected at the first output receiving submodule 12, first single-pole double-throw switch (SPDT) 14 is controlled, when first end 141 and the 3rd end 143 conducting of this first single-pole double-throw switch (SPDT) 14, described first transmitting submodule 11 is in running order, and now the first coupling submodule 13 exports coupled signal, feed back for DPD, by the access of the first single-pole double-throw switch (SPDT) 14, DPD feedback reception passage multiplexing first is enable to receive the receive path of submodule 12, decrease the quantity of passage in radio-frequency front-end, like this, system implements simpler, and reduce hardware cost.
Further, above-mentioned radio-frequency front-end, also comprise: the second radio-frequency module 200, described the second radio-frequency module 200 comprises: second launches submodule 21, second receives submodule 22, second coupling submodule 23, second single-pole double-throw switch (SPDT) 24, the 3rd single-pole double-throw switch (SPDT) 25, the 4th single-pole double-throw switch (SPDT) 26 and the first calibration submodule 27, wherein:
The first end 251 of described 3rd single-pole double-throw switch (SPDT) 25 is for receiving the signal of the RF small signals module output of described base station, the signal input part 211 that second end 252 and described second of described 3rd single-pole double-throw switch (SPDT) 25 launches submodule 21 is connected, described second launches the be coupled signal input part 231 of submodule 23 of the signal output part 212 and described second of submodule 21 is connected, and described second is coupled the first signal output part 232 of submodule 23 for exporting signal to be transmitted;
The secondary signal output 233 of described second coupling submodule is connected, for exporting coupled signal with the first end 241 of described second single-pole double-throw switch (SPDT) 24;
The signal output part 221 that second end 242 and described second of described second single-pole double-throw switch (SPDT) receives submodule 22 is connected, and receives for receiving described second the Received signal strength that submodule 22 exports;
3rd end 243 of described second single-pole double-throw switch (SPDT) 24 is connected with the first end 261 of described 4th single-pole double-throw switch (SPDT) 26;
The first end 271 that 3rd end 253 and described first of described 3rd single-pole double-throw switch (SPDT) 25 calibrates submodule is connected, the second end 272 that second end 262 and described first of described 4th single-pole double-throw switch (SPDT) 26 calibrates submodule 27 is connected, and the 3rd end 273 of described first calibration submodule 27 is connected with the calibration mouth of antenna;
3rd end 263 of described 4th single-pole double-throw switch (SPDT) 26 is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end 251 of described 3rd single-pole double-throw switch (SPDT) 25 and the second end 252 conducting, the first end 241 of described second single-pole double-throw switch (SPDT) 24 and the 3rd end 243 conducting, the first end 261 of described 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting;
When described base station received signal, the second end 242 of described second single-pole double-throw switch (SPDT) 24 and the 3rd end 243 conducting, the first end 261 of described 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting;
When described base station calibration signal, the first end 251 of described 3rd single-pole double-throw switch (SPDT) 25 and the 3rd end 253 conducting, the second end 262 of described 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting.
Like this, by introducing the 3rd single-pole double-throw switch (SPDT) 25 and the 4th single-pole double-throw switch (SPDT) 26, make the transceiver channel of the first calibration submodule 27 can receive the receive path of submodule 22 by multiplexing second transmission channel and second launching submodule 21, save the hardware cost of the transceiver channel of the first calibration submodule 27.
Further, the first radio-frequency module 100 described is multiple, and described the second radio-frequency module 200 is one, and the first radio-frequency module described 100 and described the second radio-frequency module 200 add up to antenna amount.
The Anneta module of base station is connected with radio-frequency module, and in Anneta module, antenna amount is identical with the sum of radio-frequency module, for the transmitting-receiving of signal.
Accordingly, the embodiment of the present invention provides a kind of base station, comprising: the arbitrary described radio-frequency front-end 302 that RF small signals module 301 and above-described embodiment provide, and described RF small signals module 301 comprises the first transmission channel 31 and the first receive path 32, wherein:
First transmission channel 31 of described RF small signals module 301 is connected with the described first signal input part 111 launching submodule 11 of the first radio-frequency module 100 described in described radio-frequency front-end 302, outputs signal for launching submodule 11 to described first;
First receive path 32 of described RF small signals module 301 is connected with the 3rd end 143 of described first single-pole double-throw switch (SPDT) 14 of described radio-frequency front-end 302, for receiving the signal exported from the 3rd end 143 of described first single-pole double-throw switch (SPDT) 14.
The base station that the embodiment of the present invention provides, by introducing the first single-pole double-throw switch (SPDT) 14, make DPD feedback reception passage in the first radio-frequency module 100 of radio-frequency front-end 302 can the multiplexing first receive path receiving submodule 12, decrease the quantity of passage in radio-frequency front-end, and the feedback reception passage also saved in RF small signals module 301, and then reduce the hardware cost of system, and system realizes simpler.
Further, when described radio-frequency front-end 302 comprises described the second radio-frequency module 200, described RF small signals module 301 also comprises the second transmission channel 33 and the second receive path 34, wherein:
Second transmission channel 33 of described RF small signals module 301 is connected with the first end 251 of described 3rd single-pole double-throw switch (SPDT) 25 of described the second radio-frequency module 200 of described radio-frequency front-end 302, for outputing signal to the first end 251 of described 3rd single-pole double-throw switch (SPDT) 25;
Second receive path 34 of described RF small signals module 301 is connected with the 3rd end 263 of described 4th single-pole double-throw switch (SPDT) 26 of described radio-frequency front-end 302, for receiving the signal exported from the 3rd end 263 of described 4th single-pole double-throw switch (SPDT) 26.
Like this, in the second radio-frequency module 200, by introducing the 3rd single-pole double-throw switch (SPDT) 25 and the 4th single-pole double-throw switch (SPDT) 26, make the transceiver channel of the first calibration submodule 27 can receive the receive path of submodule 22 by multiplexing second transmission channel and second launching submodule 21, save the transceiver channel of the first calibration submodule 27, further reduce the quantity of passage in base station, reduce hardware cost.
Further, also comprise: the first near-end simulated light module 41 and the first far-end analog optical module 42 be connected, wherein:
Described first transmission channel 31 and described first is launched between the signal input part 111 of submodule 11, is connected with described first far-end analog optical module 42 by described first near-end simulated light module 41;
Between 3rd end 143 of described first receive path 32 and described first single-pole double-throw switch (SPDT) 14, be connected with described first far-end analog optical module 42 by described first near-end simulated light module 41.
Like this, due to the tremendous expansion of analog optical fiber transmission bandwidth, between RF small signals module and radio-frequency front-end, add simulated light module, add the transmission bandwidth of base station; And save DPD feedback reception passage in the first radio-frequency module 100, also save the simulated light module for DPD feedback reception further.
Further, the second near-end simulated light module 43 and the second far-end analog optical module 44 be connected, wherein:
Between the first end 251 of described second transmission channel 33 and described 3rd single-pole double-throw switch (SPDT) 25, be connected with described second far-end analog optical module 44 by described second near-end simulated light module 43;
Between 3rd end 263 of described second receive path 34 and described 4th single-pole double-throw switch (SPDT) 26, be connected with described second far-end analog optical module 44 by described second near-end simulated light module 43.
Like this, in the second radio-frequency module 200, saving the calibration transceiver channel of the first calibration submodule 27, also saving the simulated light module for calibrating transmitting-receiving further.
The embodiment of the present invention also provides a kind of radio-frequency front-end of base station, comprising: the third radio-frequency module 501 and digital pre-distortion DPD feedback receive module 502, wherein:
The third radio-frequency module 501 described comprises: the 3rd launches submodule 51, the 3rd receives submodule 52, the 3rd coupling submodule 53, the 5th single-pole double-throw switch (SPDT) 54, the 6th single-pole double-throw switch (SPDT) 55 and the second calibration submodule 56, wherein:
The first end 541 of described 5th single-pole double-throw switch (SPDT) 54 is for receiving the signal of the RF small signals module output of described base station, second end 542 of described 5th single-pole double-throw switch (SPDT) 54 is connected with the described 3rd signal input part 511 launching submodule 51, described 3rd signal output part 512 launching submodule 51 is connected with the described 3rd signal input part 531 being coupled submodule 53, and the first signal output part 532 of described 3rd coupling submodule 53 is for exporting signal to be transmitted;
The described 3rd coupling secondary signal output 533 of submodule 53 is connected with the first signal input part 571 of described DPD feedback receive module 502, for exporting coupled signal to described DPD feedback receive module 501;
The signal output part 572 of described DPD feedback receive module 502 is for exporting coupled signal to described RF small signals module;
The first end 551 of described 6th single-pole double-throw switch (SPDT) 55 is connected with the described 3rd signal output part 521 receiving submodule 52, for receiving the Received signal strength that described reception submodule exports;
The first end 561 that 3rd end 543 and described second of described 5th single-pole double-throw switch (SPDT) calibrates submodule 56 is connected, the second end 562 that second end 552 and described second of described 6th single-pole double-throw switch (SPDT) 55 calibrates submodule 56 is connected, and the 3rd end 563 of described second calibration submodule 56 is connected with the calibration mouth of antenna;
3rd end 553 of described 6th single-pole double-throw switch (SPDT) 55 is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end 541 of described 5th single-pole double-throw switch (SPDT) 54 and the second end 542 conducting;
When described base station received signal, the first end 551 of described 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting;
When described base station calibration signal, the first end 541 of described 5th single-pole double-throw switch (SPDT) 54 and the 3rd end 543 conducting, the second end 552 of described 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting.
The radio-frequency front-end of the base station that the embodiment of the present invention provides, when first end 541 and the 3rd end 543 conducting of described 5th single-pole double-throw switch (SPDT) 54, when the second end 552 of described 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting, signal calibration is carried out in described base station, make the calibration transceiver channel of the second calibration submodule 56 can receive the receive path of submodule 52 by the multiplexing 3rd transmission channel and the 3rd launching submodule 51, decrease the quantity of passage in radio-frequency front-end, like this, system implements more simple, and reduces hardware cost.
Further, above-mentioned radio-frequency front-end, also comprises: the 4th kind of radio-frequency module 600, and described 4th kind of radio-frequency module comprises: the 4th launches submodule 61, the 4th receives submodule 62 and the 4th coupling submodule 63, wherein:
The signal that described 4th signal input part 611 launching submodule 61 exports for the RF small signals module receiving described base station, described 4th signal output part 612 launching submodule 61 is connected with the described 4th signal input part 631 being coupled submodule 63, and the first signal output part 632 of described 4th coupling submodule 63 is for exporting signal to be transmitted;
The secondary signal output 633 of described 4th coupling submodule 63 is connected with the secondary signal input 573 of described DPD feedback receive module 502, for exporting coupled signal to DPD feedback receive module 502;
Described 4th receives the signal output part 621 of submodule 62 for the RF small signals module output signal to described base station.
4th kind of radio-frequency module 600 for the transmitting-receiving of normal signal, and exports coupled signal to DPD feedback receive module 502 and carries out digital pre-distortion process.
Further, the third radio-frequency module 501 described is one, and described 4th kind of radio-frequency module 600 is multiple, and the third radio-frequency module described 501 and described 4th kind of radio-frequency module 600 add up to antenna amount;
The quantity of the signal input part of described DPD feedback receive module 501 is antenna amount.
The Anneta module of base station is connected with radio-frequency module, and in Anneta module, antenna amount is identical with the sum of radio-frequency module, for the transmitting-receiving of signal.
Accordingly, the embodiment of the present invention provides a kind of base station, comprise: RF small signals module 701 and as above-described embodiment provide arbitrary as described in radio-frequency front-end 702, described RF small signals module 701 comprises the 3rd transmission channel 71, the 3rd receive path 72 and feedback reception passage 73, wherein:
3rd transmission channel 71 of described RF small signals module 701 is connected with the first end 541 of described 5th single-pole double-throw switch (SPDT) 54 of the third radio-frequency module 500 described in described radio-frequency front-end 702, outputs signal for launching submodule 500 to the described 3rd;
3rd receive path 72 of described RF small signals module 701 is connected with the 3rd end 553 of described 6th single-pole double-throw switch (SPDT) 55 of described radio-frequency front-end 702, for receiving the signal exported from the 3rd end 553 of described 6th single-pole double-throw switch (SPDT) 55;
The feedback reception passage 73 of described RF small signals module 701 is connected with the signal output part 572 of the described digital pre-distortion DPD feedback receive module 502 of described radio-frequency front-end 702, for receiving the coupled signal exported from the signal output part 572 of described DPD feedback receive module 502.
The base station that the embodiment of the present invention provides, in the third radio-frequency module 500, when first end 541 and the 3rd end 543 conducting of described 5th single-pole double-throw switch (SPDT) 54, when the second end 552 of described 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting, signal calibration is carried out in described base station, make the calibration transceiver channel of the second calibration submodule 56 can receive the receive path of submodule 52 by the multiplexing 3rd transmission channel and the 3rd launching submodule 51, decrease the quantity of passage in the radio-frequency front-end of base station, like this, system implements more simple, and reduces hardware cost.
Further, when described radio-frequency front-end 702 comprises described 4th kind of radio-frequency module 600, described RF small signals module 701 also comprises the 4th transmission channel 74 and the 4th receive path 75, wherein:
4th transmission channel 74 of described RF small signals module 701 is connected with the described 4th signal input part 611 launching submodule 61 of the described 4th kind of radio-frequency module 600 of described radio-frequency front-end 702, outputs signal for the signal input part 611 launching submodule 61 to the described 4th;
4th receive path 75 of described RF small signals module 701 is connected with the described 4th signal output part 621 receiving submodule 62 of described radio-frequency front-end 702, for receiving the signal of signal output part 621 output receiving submodule 62 from the described 4th.
Further, also comprise: the 3rd near-end simulated light module the 81, the 3rd far-end analog optical module 82, the 4th near-end simulated light module 83 and the 4th far-end analog optical module 84 that are connected, wherein:
Between the first end 541 of described 3rd transmission channel 71 and described 5th single-pole double-throw switch (SPDT) 54, be connected with described 3rd far-end analog optical module 82 by described 3rd near-end simulated light module 81;
Between 3rd end 553 of described 3rd receive path 72 and described 6th single-pole double-throw switch (SPDT) 55, be connected with described 3rd far-end analog optical module 82 by described 3rd near-end simulated light module 81;
Between the signal output part 572 of described feedback reception passage 73 and described DPD feedback reception passage 501, be connected with described 4th far-end analog optical module 84 by described 4th near-end simulated light module 83.
Like this, due to the tremendous expansion of analog optical fiber transmission bandwidth, between RF small signals module and radio-frequency front-end, add simulated light module, add the transmission bandwidth of base station; And save the calibration transceiver channel of the second calibration submodule 56 in the third radio-frequency module 500, also save the simulated light module for signal calibration further.
Further, also comprise: the 5th near-end simulated light module 85 and the 5th far-end analog optical module 86 be connected, wherein:
Described 4th transmission channel 74 and the described 4th is launched between the signal input part 611 of submodule 61, is connected with described 5th far-end analog optical module 86 by described 5th near-end simulated light module 85;
Described 4th receive path 75 and the described 4th receives between the signal output part 621 of submodule 62, is connected with described 5th far-end analog optical module 86 by described 5th near-end simulated light module 85.
Like this, adopt simulated light module to be carried out the transmission of signal by analog optical fiber, add the transmission bandwidth of base station.
The further feature of the application and advantage will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the application.The object of the application and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with the embodiment of the present invention one.In the accompanying drawings:
One of structure of radio-frequency front end schematic diagram of the base station that Fig. 1 provides for the embodiment of the present invention;
The structure of radio-frequency front end schematic diagram two of the base station that Fig. 2 provides for the embodiment of the present invention;
One of structural representation of the base station that Fig. 3 A provides for the embodiment of the present invention;
The structural representation two of the base station that Fig. 3 B provides for the embodiment of the present invention;
The structural representation three of the base station that Fig. 4 A provides for the embodiment of the present invention;
The structural representation four of the base station that Fig. 4 B provides for the embodiment of the present invention;
The structure of radio-frequency front end schematic diagram three of the base station that Fig. 5 provides for the embodiment of the present invention;
The structure of radio-frequency front end schematic diagram four of the base station that Fig. 6 provides for the embodiment of the present invention;
The structural representation five of the base station that Fig. 7 A provides for the embodiment of the present invention;
The structural representation six of the base station that Fig. 7 B provides for the embodiment of the present invention;
The structural representation seven of the base station that Fig. 8 A provides for the embodiment of the present invention;
The structural representation eight of the base station that Fig. 8 B provides for the embodiment of the present invention;
The internal structure schematic diagram of the transmitting submodule that Fig. 9 provides for the embodiment of the present invention.
Embodiment
In order to provide the quantity reducing passage in radio-frequency front-end, thus it is simpler to make system realize, the implementation that hardware cost is lower, embodiments provide a kind of radio-frequency front-end and base station of base station, below in conjunction with Figure of description, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.And when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiment 1:
The embodiment of the present invention provides a kind of radio-frequency front-end of base station, as shown in Figure 1, comprise: the first radio-frequency module 100, this first radio-frequency module 100 comprises: first launches submodule 11, first receives submodule 12, first coupling submodule 13 and the first single-pole double-throw switch (SPDT) 14, wherein:
The signal that this first signal input part 111 launching submodule 11 exports for the RF small signals module receiving this base station, this first signal output part 112 launching submodule 11 is connected with this first signal input part 131 being coupled submodule 13, and the first signal output part 132 of this first coupling submodule 13 is for exporting signal to be transmitted;
This first coupling secondary signal output 133 of submodule 13 is connected with the first end 141 of this first single-pole double-throw switch (SPDT) 14, for exporting coupled signal;
Second end 142 of this first single-pole double-throw switch (SPDT) 14 is connected with this first signal output part 121 receiving submodule 12, for receiving the Received signal strength that this first reception submodule 12 exports;
3rd end 143 of this first single-pole double-throw switch (SPDT) 14 is for the RF small signals module output signal to this base station;
Wherein, when this base station transmit signals, the first end 141 of this first single-pole double-throw switch (SPDT) 14 and the 3rd end 143 conducting, when this base station received signal, the second end 142 of this first single-pole double-throw switch (SPDT) 14 and the 3rd end 143 conducting.
In the first radio-frequency module 100 above-mentioned, circulator and band pass filter can also be comprised, first signal output part 132 of the first coupling submodule 13 is all connected with this circulator with the first signal input part 122 receiving submodule 12, this circulator opposite side is connected with this band pass filter, this band pass filter is connected with the Anneta module of base station by feeder line, concrete, the circulator of this circulator, this band pass filter and this Anneta module and base station radio-frequency front end in prior art, band pass filter and Anneta module are consistent, do not repeat them here.
Further, the radio-frequency front-end of the base station that the embodiment of the present invention 1 provides, also comprise: the second radio-frequency module 200, as shown in Figure 2, this the second radio-frequency module 200 comprises: second launches submodule 21, second receives submodule 22, second coupling submodule 23, second single-pole double-throw switch (SPDT) 24, the 3rd single-pole double-throw switch (SPDT) 25, the 4th single-pole double-throw switch (SPDT) 26 and the first calibration submodule 27, wherein:
The first end 251 of the 3rd single-pole double-throw switch (SPDT) 25 is for receiving the signal of the RF small signals module output of this base station, second end 252 of the 3rd single-pole double-throw switch (SPDT) 25 is connected with this second signal input part 211 launching submodule 21, this second signal output part 212 launching submodule 21 is connected with this second signal input part 231 being coupled submodule 23, and the first signal output part 232 of this second coupling submodule 23 is for exporting signal to be transmitted;
This second coupling secondary signal output 233 of submodule is connected with the first end 241 of this second single-pole double-throw switch (SPDT) 24, for exporting coupled signal;
Second end 242 of this second single-pole double-throw switch (SPDT) is connected with this second signal output part 221 receiving submodule 22, for receiving the Received signal strength that this second reception submodule 22 exports;
3rd end 243 of this second single-pole double-throw switch (SPDT) 24 is connected with the first end 261 of the 4th single-pole double-throw switch (SPDT) 26;
3rd end 253 of the 3rd single-pole double-throw switch (SPDT) 25 is connected with this first first end 271 calibrating submodule, second end 262 of the 4th single-pole double-throw switch (SPDT) 26 is connected with this first second end 272 calibrating submodule 27, and the 3rd end 273 of this first calibration submodule 27 is connected with the calibration mouth of antenna;
3rd end 263 of the 4th single-pole double-throw switch (SPDT) 26 is for the RF small signals module output signal to this base station;
Wherein, when this base station transmit signals, the first end 251 of the 3rd single-pole double-throw switch (SPDT) 25 and the second end 252 conducting, the first end 241 of this second single-pole double-throw switch (SPDT) 24 and the 3rd end 243 conducting, the first end 261 of the 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting;
When this base station received signal, the second end 242 of this second single-pole double-throw switch (SPDT) 24 and the 3rd end 243 conducting, the first end 261 of the 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting;
When this base station calibration signal, the first end 251 of the 3rd single-pole double-throw switch (SPDT) 25 and the 3rd end 253 conducting, the second end 262 of the 4th single-pole double-throw switch (SPDT) 26 and the 3rd end 263 conducting.
In above-mentioned the second radio-frequency module 200, circulator and band pass filter can also be comprised, first signal output part 232 of the second coupling submodule 23 is all connected with this circulator with the first signal input part 222 receiving submodule 22, this circulator opposite side is connected with this band pass filter, this band pass filter is connected with the Anneta module of base station by feeder line, concrete, the circulator of this circulator, this band pass filter and this Anneta module and base station radio-frequency front end in prior art, band pass filter and Anneta module are consistent, do not repeat them here.
Further, this first radio-frequency module 100 is multiple, and this second radio-frequency module 200 is one, and this first radio-frequency module 100 and this second radio-frequency module 200 add up to antenna amount.
Accordingly, the embodiment of the present invention 1 also provides a kind of base station, as shown in Figure 3A, comprising: arbitrary described radio-frequency front-end 302 that RF small signals module 301 and above-described embodiment 1 provide, this RF small signals module 301 comprises the first transmission channel 31 and the first receive path 32, wherein:
First transmission channel 31 of this RF small signals module 301 is connected with this first signal input part 111 launching submodule 11 of the first radio-frequency module 100 of this radio-frequency front-end 302, for outputing signal to this first transmitting submodule 11;
First receive path 32 of this RF small signals module 301 is connected with the 3rd end 143 of the first single-pole double-throw switch (SPDT) 14 of this radio-frequency front-end 302, for receiving the signal exported from the 3rd end 143 of this first single-pole double-throw switch (SPDT) 14.
In the base station that above-described embodiment 1 provides, baseband processing module can also be comprised, digital light module and data intermediate frequency module, downgoing baseband signal processes by baseband processing module, send to digital light module, digital light module passes through electro-optic conversion, the functions such as opto-electronic conversion send signal to data intermediate frequency module, then after data intermediate frequency module carries out intermediate frequency process to this signal, signal after process is sent to the first transmission channel 31 in RF small signals module 301, this first transmission channel 31 can carry out some Up/Down Conversions to signal, the RF small signals process such as radio frequency amplification, signal is sent to the first transmitting submodule 111 of the first radio-frequency module 100 in radio-frequency front-end 302 afterwards, carry out power amplification, low noise amplification, the process such as duplex filtering, received by Anneta module finally by by feeder line, by antenna, signal is sent.When first end 141 and the 3rd end 143 conducting of the first single-pole double-throw switch (SPDT) 14 of the first radio-frequency module 100, base station received signal.Other modules in this base station except radio-frequency front-end 302 are consistent with the correlation procedure of the corresponding module in base station in prior art to signal, are no longer described in detail at this.
Further, when this radio-frequency front-end 302 comprises this second radio-frequency module 200, this RF small signals module 301 also comprises the second transmission channel 33 and the second receive path 34, as shown in Figure 3 B, wherein:
Second transmission channel 33 of this RF small signals module 301 is connected with the first end 251 of the 3rd single-pole double-throw switch (SPDT) 25 of this second radio-frequency module 200 of this radio-frequency front-end 302, for outputing signal to the first end 251 of the 3rd single-pole double-throw switch (SPDT) 25;
Second receive path 34 of this RF small signals module 301 is connected with the 3rd end 263 of the 4th single-pole double-throw switch (SPDT) 26 of this radio-frequency front-end 302, for receiving the signal exported from the 3rd end 263 of the 4th single-pole double-throw switch (SPDT) 26.
Further, the base station as described in as arbitrary in above-described embodiment 1, also comprises: the first near-end simulated light module 41 and the first far-end analog optical module 42 be connected, as shown in Figure 4 A, wherein:
This first transmission channel 31 and this first launch between the signal input part 111 of submodule 11, be connected with this first far-end analog optical module 42 by this first near-end simulated light module 41;
Between this first receive path 32 and the 3rd end 143 of this first single-pole double-throw switch (SPDT) 14, be connected with this first far-end analog optical module 42 by this first near-end simulated light module 41.
Further, above-mentioned base station also comprises: the second near-end simulated light module 43 and the second far-end analog optical module 44 be connected, as shown in Figure 4 B, wherein:
Between the first end 251 of this second transmission channel 33 and the 3rd single-pole double-throw switch (SPDT) 25, be connected with this second far-end analog optical module 44 by this second near-end simulated light module 43;
Between this second receive path 34 and the 3rd end 263 of the 4th single-pole double-throw switch (SPDT) 26, be connected with this second far-end analog optical module 44 by this second near-end simulated light module 43.
At present, based on the tremendous expansion of analog optical fiber transmission bandwidth, utilize light carrier radio communication (ROF, Radio over Fiber) Novel base station application more and more of technology, but the cost of analog optical fiber and simulated light module is higher, certain restriction is created to the extensive popularization of ROF base station, adopt the base station that the embodiment of the present invention 1 provides, by the improvement of radio frequency front end, adopt the first radio-frequency front-end 100 to achieve receive path that DPD feedback reception channel multiplexing first receives submodule 12, the second radio-frequency front-end 200 is adopted to make the first calibration submodule 27 can receive the receive path of submodule 22 by multiplexing second transmission channel and second launching submodule 21, compared with ROF base station in prior art, the base station that the embodiment of the present invention 1 provides saves DPD feedback reception passage and calibration transceiver channel, and save a pair near-end simulated light module, a pair far-end analog optical module and near-end simulated light module and the optical fiber be connected between far-end analog optical module, thus reduce the hardware device cost of base station, system is realized simpler.
Embodiment 2:
The embodiment of the present invention 2 provides a kind of radio-frequency front-end of base station, as shown in Figure 5, comprising: the third radio-frequency module 501 and digital pre-distortion DPD feedback receive module 502, wherein:
This third radio-frequency module 501 comprises: the 3rd launches submodule 51, the 3rd receives submodule 52, the 3rd coupling submodule 53, the 5th single-pole double-throw switch (SPDT) 54, the 6th single-pole double-throw switch (SPDT) 55 and the second calibration submodule 56, wherein:
The first end 541 of the 5th single-pole double-throw switch (SPDT) 54 is for receiving the signal of the RF small signals module output of this base station, the signal input part 511 that second end 542 and the 3rd of the 5th single-pole double-throw switch (SPDT) 54 launches submodule 51 is connected, 3rd launches the be coupled signal input part 531 of submodule 53 of the signal output part 512 and the 3rd of submodule 51 is connected, and the 3rd is coupled the first signal output part 532 of submodule 53 for exporting signal to be transmitted;
The 3rd coupling secondary signal output 533 of submodule 53 is connected with the first signal input part 571 of this DPD feedback receive module 502, for exporting coupled signal to this DPD feedback receive module 501;
The signal output part 572 of this DPD feedback receive module 502 is for exporting coupled signal to this RF small signals module;
The signal output part 521 that the first end 551 and the 3rd of the 6th single-pole double-throw switch (SPDT) 55 receives submodule 52 is connected, for receiving the Received signal strength that this reception submodule exports;
3rd end 543 of the 5th single-pole double-throw switch (SPDT) is connected with this second first end 561 calibrating submodule 56, second end 552 of the 6th single-pole double-throw switch (SPDT) 55 is connected with this second second end 562 calibrating submodule 56, and the 3rd end 563 of this second calibration submodule 56 is connected with the calibration mouth of antenna;
3rd end 553 of the 6th single-pole double-throw switch (SPDT) 55 is for the RF small signals module output signal to this base station;
Wherein, when this base station transmit signals, the first end 541 of the 5th single-pole double-throw switch (SPDT) 54 and the second end 542 conducting;
When this base station received signal, the first end 551 of the 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting;
When this base station calibration signal, the first end 541 of the 5th single-pole double-throw switch (SPDT) 54 and the 3rd end 543 conducting, the second end 552 of the 6th single-pole double-throw switch (SPDT) 55 and the 3rd end 553 conducting.
In the third radio-frequency module 501 above-mentioned, circulator and band pass filter can also be comprised, first signal output part 532 of the 3rd coupling submodule 53 is all connected with this circulator with the 3rd signal input part 522 receiving submodule 52, this circulator opposite side is connected with this band pass filter, this band pass filter is connected with the Anneta module of base station by feeder line, concrete, the circulator of this circulator, this band pass filter and this Anneta module and base station radio-frequency front end in prior art, band pass filter and Anneta module are consistent, do not repeat them here.
Further, the radio-frequency front-end of this base station, also comprises: the 4th kind of radio-frequency module the 600, four kind of radio-frequency module comprises: the 4th launches submodule 61, the 4th receives submodule 62 and the 4th coupling submodule 63, as shown in Figure 6, wherein:
The signal that 4th signal input part 611 launching submodule 61 exports for the RF small signals module receiving this base station, 4th launches the be coupled signal input part 631 of submodule 63 of the signal output part 612 and the 4th of submodule 61 is connected, and the 4th is coupled the first signal output part 632 of submodule 63 for exporting signal to be transmitted;
The 4th coupling secondary signal output 633 of submodule 63 is connected with the secondary signal input 573 of this DPD feedback receive module 502, for exporting coupled signal to DPD feedback receive module 502;
4th receives the signal output part 621 of submodule 62 for the RF small signals module output signal to this base station.
In above-mentioned 4th kind of radio-frequency module 600, circulator and band pass filter can also be comprised, first signal output part 632 of the 4th coupling submodule 63 is all connected with this circulator with the 4th signal input part 622 receiving submodule 62, this circulator opposite side is connected with this band pass filter, this band pass filter is connected with the Anneta module of base station by feeder line, concrete, the circulator of this circulator, this band pass filter and this Anneta module and base station radio-frequency front end in prior art, band pass filter and Anneta module are consistent, do not repeat them here.
Further, in the radio-frequency front-end of the base station that the embodiment of the present invention 2 provides, this third radio-frequency module 501 is one, and the 4th kind of radio-frequency module 600 is multiple, and this third radio-frequency module 501 and the 4th kind of radio-frequency module 600 add up to antenna amount;
The quantity of the signal input part of this DPD feedback receive module 501 is antenna amount.
Accordingly, the embodiment of the present invention 2 also provides a kind of base station, as shown in Figure 7 A, comprise: RF small signals module 701 and as the radio-frequency front-end 702 as described in arbitrary in inventive embodiments 2, this RF small signals module 701 comprises the 3rd transmission channel 71, the 3rd receive path 72 and feedback reception passage 73, wherein:
3rd transmission channel 71 of this RF small signals module 701 is connected with the first end 541 of the 5th single-pole double-throw switch (SPDT) 54 of this third radio-frequency module 500 of this radio-frequency front-end 702, outputs signal for launching submodule 500 to the 3rd;
3rd receive path 72 of this RF small signals module 701 is connected with the 3rd end 553 of the 6th single-pole double-throw switch (SPDT) 55 of this radio-frequency front-end 702, for receiving the signal exported from the 3rd end 553 of the 6th single-pole double-throw switch (SPDT) 55;
The feedback reception passage 73 of this RF small signals module 701 is connected with the signal output part 572 of this digital pre-distortion DPD feedback receive module 502 of this radio-frequency front-end 702, for receiving the coupled signal exported from the signal output part 572 of this DPD feedback receive module 502.
In the base station that above-described embodiment 2 provides, baseband processing module can also be comprised, digital light module and data intermediate frequency module, downgoing baseband signal processes by baseband processing module, send to digital light module, digital light module passes through electro-optic conversion, the functions such as opto-electronic conversion send signal to data intermediate frequency module, then after data intermediate frequency module carries out intermediate frequency process to this signal, signal after process is sent to the 3rd transmission channel 71 in RF small signals module 701, 3rd transmission channel 71 can carry out some Up/Down Conversions to signal, the RF small signals process such as radio frequency amplification, signal is sent to the 3rd transmitting submodule 541 of the third radio-frequency module 501 in radio-frequency front-end 702 afterwards, carry out power amplification, low noise amplification, the process such as duplex filtering, received by Anneta module finally by by feeder line, by antenna, signal is sent.Other modules in this base station except radio-frequency front-end 702 are consistent with the correlation procedure of the corresponding module in base station in prior art to signal, are no longer described in detail at this.
Further, when this radio-frequency front-end 702 comprises the 4th kind of radio-frequency module 600, this RF small signals module 701 also comprises the 4th transmission channel 74 and the 4th receive path 75, as shown in Figure 7 B, wherein:
4th transmission channel 74 of this RF small signals module 701 is connected with the 4th signal input part 611 launching submodule 61 of the 4th kind of radio-frequency module 600 of this radio-frequency front-end 702, outputs signal for the signal input part 611 launching submodule 61 to the 4th;
The signal output part 621 that 4th receive path 75 and the 4th of this radio-frequency front-end 702 of this RF small signals module 701 receive submodule 62 is connected, for receiving the signal of signal output part 621 output receiving submodule 62 from the 4th.
Further, this base station also comprises connected the 3rd near-end simulated light module the 81, the 3rd far-end analog optical module 82, the 4th near-end simulated light module 83 and the 4th far-end analog optical module 84, as shown in Figure 8 A, wherein:
Between the first end 541 of the 3rd transmission channel 71 and the 5th single-pole double-throw switch (SPDT) 54, be connected with the 3rd far-end analog optical module 82 by the 3rd near-end simulated light module 81;
Between 3rd receive path 72 and the 3rd end 553 of the 6th single-pole double-throw switch (SPDT) 55, be connected with the 3rd far-end analog optical module 82 by the 3rd near-end simulated light module 81;
Between the signal output part 572 of this feedback reception passage 73 and this DPD feedback reception passage 501, be connected with the 4th far-end analog optical module 84 by the 4th near-end simulated light module 83.
Further, this base station also comprises: the 5th near-end simulated light module 85 and the 5th far-end analog optical module 86 be connected, as shown in Figure 8 B, wherein:
4th transmission channel 74 and the 4th is launched between the signal input part 611 of submodule 61, is connected with the 5th far-end analog optical module 86 by the 5th near-end simulated light module 85;
4th receive path 75 and the 4th receives between the signal output part 621 of submodule 62, is connected with the 5th far-end analog optical module 86 by the 5th near-end simulated light module 85.
The internal structure that above-described embodiment 1 launches submodule with four in above-described embodiment 2 kind is the same, comprises a power amplifier, for carrying out power amplification to the signal from RF small signals module, four kinds of internal structures receiving submodule are also identical, comprise a low noise amplifier 91, a single-pole double-throw switch (SPDT) 92 and a build-out resistor 93, structural representation as shown in Figure 9, wherein the signal output part 911 of low noise amplifier 91 is for RF small signals module output signal, the signal input part 912 of low noise amplifier 91 is connected with the first end 921 of single-pole double-throw switch (SPDT) 92, second end 922 of single-pole double-throw switch (SPDT) 92 is connected with the circulator in radio-frequency front-end, for the input of signal, 3rd end 923 of single-pole double-throw switch (SPDT) 92 passes through first end 931 ground connection of build-out resistor 93.
The radio-frequency front-end of the base station that the embodiment of the application provides realizes by computer program.Those skilled in the art should be understood that; above-mentioned Module Division mode is only the one in numerous Module Division mode; if be divided into other modules or do not divide module, as long as radio-frequency front-end has above-mentioned functions, all should within the protection range of the application.
The application describes with reference to according to the flow chart of the method for the embodiment of the present application, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (14)
1. the radio-frequency front-end of a base station, it is characterized in that, comprise: the first radio-frequency module (100), described the first radio-frequency module (100) comprising: first launches submodule (11), first receives submodule (12), the first coupling submodule (13) and the first single-pole double-throw switch (SPDT) (14), wherein:
The signal that described first signal input part (111) launching submodule (11) exports for the RF small signals module receiving described base station, the be coupled signal input part (131) of submodule (13) of described first signal output part (112) and described first launching submodule (11) is connected, and described first is coupled first signal output part (132) of submodule (13) for exporting signal to be transmitted;
The secondary signal output (133) of described first coupling submodule (13) is connected, for exporting coupled signal with the first end (141) of described first single-pole double-throw switch (SPDT) (14);
The signal output part (121) that second end (142) and described first of described first single-pole double-throw switch (SPDT) (14) receives submodule (12) is connected, and receives for receiving described first the Received signal strength that submodule (12) exports;
3rd end (143) of described first single-pole double-throw switch (SPDT) (14) is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end (141) of described first single-pole double-throw switch (SPDT) (14) and the 3rd end (143) conducting, when described base station received signal, second end (142) of described first single-pole double-throw switch (SPDT) (14) and the 3rd end (143) conducting.
2. the radio-frequency front-end of base station as claimed in claim 1, it is characterized in that, also comprise: the second radio-frequency module (200), described the second radio-frequency module (200) comprising: second launches submodule (21), second receives submodule (22), the second coupling submodule (23), the second single-pole double-throw switch (SPDT) (24), the 3rd single-pole double-throw switch (SPDT) (25), the 4th single-pole double-throw switch (SPDT) (26) and the first calibration submodule (27), wherein:
The first end (251) of described 3rd single-pole double-throw switch (SPDT) (25) is for receiving the signal of the RF small signals module output of described base station, the signal input part (211) that second end (252) and described second of described 3rd single-pole double-throw switch (SPDT) (25) launches submodule (21) is connected, the be coupled signal input part (231) of submodule (23) of described second signal output part (212) and described second launching submodule (21) is connected, and described second is coupled first signal output part (232) of submodule (23) for exporting signal to be transmitted;
The secondary signal output (233) of described second coupling submodule is connected, for exporting coupled signal with the first end (241) of described second single-pole double-throw switch (SPDT) (24);
The signal output part (221) that second end (242) and described second of described second single-pole double-throw switch (SPDT) receives submodule (22) is connected, and receives for receiving described second the Received signal strength that submodule (22) exports;
3rd end (243) of described second single-pole double-throw switch (SPDT) (24) is connected with the first end (261) of described 4th single-pole double-throw switch (SPDT) (26);
The first end (271) that 3rd end (253) and described first of described 3rd single-pole double-throw switch (SPDT) (25) calibrates submodule is connected, the second end (272) that second end (262) and described first of described 4th single-pole double-throw switch (SPDT) (26) calibrates submodule (27) is connected, and the 3rd end (273) of described first calibration submodule (27) is connected with the calibration mouth of antenna;
3rd end (263) of described 4th single-pole double-throw switch (SPDT) (26) is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end (251) of described 3rd single-pole double-throw switch (SPDT) (25) and the second end (252) conducting, the first end (241) of described second single-pole double-throw switch (SPDT) (24) and the 3rd end (243) conducting, the first end (261) of described 4th single-pole double-throw switch (SPDT) (26) and the 3rd end (263) conducting;
When described base station received signal, second end (242) of described second single-pole double-throw switch (SPDT) (24) and the 3rd end (243) conducting, the first end (261) of described 4th single-pole double-throw switch (SPDT) (26) and the 3rd end (263) conducting;
When described base station calibration signal, the first end (251) of described 3rd single-pole double-throw switch (SPDT) (25) and the 3rd end (253) conducting, second end (262) of described 4th single-pole double-throw switch (SPDT) (26) and the 3rd end (263) conducting.
3. the radio-frequency front-end of base station as claimed in claim 2, it is characterized in that, described the first radio-frequency module (100) is for multiple, described the second radio-frequency module (200) is one, and the first radio-frequency module described (100) and described the second radio-frequency module (200) add up to antenna amount.
4. a base station, it is characterized in that, comprise: RF small signals module (301) and as arbitrary in claim 1-3 as described in radio-frequency front-end (302), described RF small signals module (301) comprises the first transmission channel (31) and the first receive path (32), wherein:
First transmission channel (31) of described RF small signals module (301) is connected with the described first signal input part (111) launching submodule (11) of described the first radio-frequency module (100) of described radio-frequency front-end (302), for launching submodule (11) output signal to described first;
First receive path (32) of described RF small signals module (301) is connected with the 3rd end (143) of described first single-pole double-throw switch (SPDT) (14) of described radio-frequency front-end (302), for receiving the signal exported from the 3rd end (143) of described first single-pole double-throw switch (SPDT) (14).
5. base station as claimed in claim 4, it is characterized in that, when described radio-frequency front-end (302) comprises described the second radio-frequency module (200), described RF small signals module (301) also comprises the second transmission channel (33) and the second receive path (34), wherein:
Second transmission channel (33) of described RF small signals module (301) is connected with the first end (251) of described 3rd single-pole double-throw switch (SPDT) (25) of described the second radio-frequency module (200) of described radio-frequency front-end (302), outputs signal for the first end (251) to described 3rd single-pole double-throw switch (SPDT) (25);
Second receive path (34) of described RF small signals module (301) is connected with the 3rd end (263) of described 4th single-pole double-throw switch (SPDT) (26) of described radio-frequency front-end (302), for receiving the signal exported from the 3rd end (263) of described 4th single-pole double-throw switch (SPDT) (26).
6. the base station as described in as arbitrary in claim 4-5, is characterized in that, also comprise: the first near-end simulated light module (41) be connected and the first far-end analog optical module (42), wherein:
Described first transmission channel (31) and described first is launched between the signal input part (111) of submodule (11), is connected with described first far-end analog optical module (42) by described first near-end simulated light module (41);
Between described first receive path (32) and the 3rd end (143) of described first single-pole double-throw switch (SPDT) (14), be connected with described first far-end analog optical module (42) by described first near-end simulated light module (41).
7. base station as claimed in claim 6, is characterized in that, also comprise: the second near-end simulated light module (43) be connected and the second far-end analog optical module (44), wherein:
Between the first end (251) of described second transmission channel (33) and described 3rd single-pole double-throw switch (SPDT) (25), be connected with described second far-end analog optical module (44) by described second near-end simulated light module (43);
Between 3rd end (263) of described second receive path (34) and described 4th single-pole double-throw switch (SPDT) (26), be connected with described second far-end analog optical module (44) by described second near-end simulated light module (43).
8. a radio-frequency front-end for base station, is characterized in that, comprising: the third radio-frequency module (501) and digital pre-distortion DPD feedback receive module (502), wherein:
Described the third radio-frequency module (501) comprising: the 3rd launches submodule (51), the 3rd receives submodule (52), the 3rd coupling submodule (53), the 5th single-pole double-throw switch (SPDT) (54), the 6th single-pole double-throw switch (SPDT) (55) and the second calibration submodule (56), wherein:
The first end (541) of described 5th single-pole double-throw switch (SPDT) (54) is for receiving the signal of the RF small signals module output of described base station, the signal input part (511) that second end (542) and the described 3rd of described 5th single-pole double-throw switch (SPDT) (54) launches submodule (51) is connected, the be coupled signal input part (531) of submodule (53) of described 3rd signal output part (512) and the described 3rd launching submodule (51) is connected, and the described 3rd is coupled first signal output part (532) of submodule (53) for exporting signal to be transmitted;
The secondary signal output (533) of described 3rd coupling submodule (53) is connected with first signal input part (571) of described DPD feedback receive module (502), for exporting coupled signal to described DPD feedback receive module (501);
The signal output part (572) of described DPD feedback receive module (502) is for exporting coupled signal to described RF small signals module;
The signal output part (521) that the first end (551) and the described 3rd of described 6th single-pole double-throw switch (SPDT) (55) receives submodule (52) is connected, for receiving the Received signal strength that described reception submodule exports;
The first end (561) that 3rd end (543) and described second of described 5th single-pole double-throw switch (SPDT) calibrates submodule (56) is connected, the second end (562) that second end (552) and described second of described 6th single-pole double-throw switch (SPDT) (55) calibrates submodule (56) is connected, and the 3rd end (563) of described second calibration submodule (56) is connected with the calibration mouth of antenna;
3rd end (553) of described 6th single-pole double-throw switch (SPDT) (55) is for the RF small signals module output signal to described base station;
Wherein, when described base station transmit signals, the first end (541) of described 5th single-pole double-throw switch (SPDT) (54) and the second end (542) conducting;
When described base station received signal, the first end (551) of described 6th single-pole double-throw switch (SPDT) (55) and the 3rd end (553) conducting;
When described base station calibration signal, the first end (541) of described 5th single-pole double-throw switch (SPDT) (54) and the 3rd end (543) conducting, second end (552) of described 6th single-pole double-throw switch (SPDT) (55) and the 3rd end (553) conducting.
9. the radio-frequency front-end of base station as claimed in claim 8, it is characterized in that, also comprise: the 4th kind of radio-frequency module (600), described 4th kind of radio-frequency module comprises: the 4th launches submodule (61), the 4th receives submodule (62) and the 4th coupling submodule (63), wherein:
The signal that described 4th signal input part (611) launching submodule (61) exports for the RF small signals module receiving described base station, the be coupled signal input part (631) of submodule (63) of described 4th signal output part (612) and the described 4th launching submodule (61) is connected, and the described 4th is coupled first signal output part (632) of submodule (63) for exporting signal to be transmitted;
The secondary signal output (633) of described 4th coupling submodule (63) is connected with the secondary signal input (573) of described DPD feedback receive module (502), for exporting coupled signal to DPD feedback receive module (502);
Described 4th receives the signal output part (621) of submodule (62) for the RF small signals module output signal to described base station.
10. the radio-frequency front-end of base station as claimed in claim 9, it is characterized in that, described the third radio-frequency module (501) is one, described 4th kind of radio-frequency module (600) for multiple, and the third radio-frequency module described (501) and described 4th kind of radio-frequency module (600) add up to antenna amount;
The quantity of the signal input part of described DPD feedback receive module (501) is antenna amount.
11. 1 kinds of base stations, it is characterized in that, comprise: RF small signals module (701) and as arbitrary in claim 8-10 as described in radio-frequency front-end (702), described RF small signals module (701) comprises the 3rd transmission channel (71), the 3rd receive path (72) and feedback reception passage (73), wherein:
3rd transmission channel (71) of described RF small signals module (701) is connected with the first end (541) of described 5th single-pole double-throw switch (SPDT) (54) of described the third radio-frequency module (500) of described radio-frequency front-end (702), for launching submodule (500) output signal to the described 3rd;
3rd receive path (72) of described RF small signals module (701) is connected with the 3rd end (553) of described 6th single-pole double-throw switch (SPDT) (55) of described radio-frequency front-end (702), for receiving the signal exported from the 3rd end (553) of described 6th single-pole double-throw switch (SPDT) (55);
The feedback reception passage (73) of described RF small signals module (701) is connected with the signal output part (572) of the described digital pre-distortion DPD feedback receive module (502) of described radio-frequency front-end (702), for receiving the coupled signal exported from the signal output part (572) of described DPD feedback receive module (502).
12. base stations as claimed in claim 11, it is characterized in that, when described radio-frequency front-end (702) comprises described 4th kind radio-frequency module (600), described RF small signals module (701) also comprises the 4th transmission channel (74) and the 4th receive path (75), wherein:
4th transmission channel (74) of described RF small signals module (701) is connected with the described 4th signal input part (611) launching submodule (61) of the described 4th kind of radio-frequency module (600) of described radio-frequency front-end (702), for launching signal input part (611) output signal of submodule (61) to the described 4th;
The signal output part (621) that 4th receive path (75) and the described 4th of the described radio-frequency front-end (702) of described RF small signals module (701) receive submodule (62) is connected, for receiving the signal exported from the signal output part (621) of described 4th reception submodule (62).
13. as arbitrary in claim 11-12 as described in base station, it is characterized in that, also comprise: the 3rd near-end simulated light module (81), the 3rd far-end analog optical module (82), the 4th near-end simulated light module (83) and the 4th far-end analog optical module (84) that are connected, wherein:
Between the first end (541) of described 3rd transmission channel (71) and described 5th single-pole double-throw switch (SPDT) (54), be connected with described 3rd far-end analog optical module (82) by described 3rd near-end simulated light module (81);
Between 3rd end (553) of described 3rd receive path (72) and described 6th single-pole double-throw switch (SPDT) (55), be connected with described 3rd far-end analog optical module (82) by described 3rd near-end simulated light module (81);
Between the signal output part (572) of described feedback reception passage (73) and described DPD feedback reception passage (501), be connected with described 4th far-end analog optical module (84) by described 4th near-end simulated light module (83).
14. base stations as claimed in claim 13, is characterized in that, also comprise: the 5th near-end simulated light module (85) be connected and the 5th far-end analog optical module (86), wherein:
Described 4th transmission channel (74) and the described 4th is launched between the signal input part (611) of submodule (61), is connected with described 5th far-end analog optical module (86) by described 5th near-end simulated light module (85);
Described 4th receive path (75) and the described 4th receives between the signal output part (621) of submodule (62), is connected with described 5th far-end analog optical module (86) by described 5th near-end simulated light module (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310547485.1A CN104639201B (en) | 2013-11-06 | 2013-11-06 | A kind of radio-frequency front-end of base station and base station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310547485.1A CN104639201B (en) | 2013-11-06 | 2013-11-06 | A kind of radio-frequency front-end of base station and base station |
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| Publication Number | Publication Date |
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| CN104639201A true CN104639201A (en) | 2015-05-20 |
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| CN106230521A (en) * | 2016-07-20 | 2016-12-14 | 乐视控股（北京）有限公司 | Signal monitoring method and mobile terminal |
| CN110166068A (en) * | 2018-02-13 | 2019-08-23 | 华为技术有限公司 | A kind of signal transmitting and receiving circuit |
| CN112311465A (en) * | 2020-10-30 | 2021-02-02 | 南京国博电子有限公司 | Microwave transceiving front-end circuit |
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| CN112311465B (en) * | 2020-10-30 | 2024-06-11 | 南京国博电子股份有限公司 | Microwave receiving and transmitting front-end circuit |
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| Publication number | Publication date |
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| CN104639201B (en) | 2018-02-23 |
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