CN101242213A - A receiving/transmission selection switch and antenna selection switch device - Google Patents
A receiving/transmission selection switch and antenna selection switch device Download PDFInfo
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- CN101242213A CN101242213A CNA2008100855540A CN200810085554A CN101242213A CN 101242213 A CN101242213 A CN 101242213A CN A2008100855540 A CNA2008100855540 A CN A2008100855540A CN 200810085554 A CN200810085554 A CN 200810085554A CN 101242213 A CN101242213 A CN 101242213A
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- selection switch
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Abstract
The invention discloses a transceiver selection switch and antenna selection switch device, which is used in two- antenna system, the device comprises: two antennas, antenna selection switch, transceivers selection switch, fired channel amplifier, receiver channel low noise amplifier, and antenna selection switch / transceiver selection switch control signal combiner; wherein two antennas are connected separately with the combination of method to combiner through the antenna selection switch and the transceivers selection switch, the fired channel amplifier connected with the antenna selection switch sends signals, the receiver channel low noise amplifier connected with transceiver selection switch receives signals, the combiner according to received different control signals in two antenna system, produces two control signals to the antenna selection switch and transceivers selection switch, and executes sending signals and receiving signals operation through two antennas. The invention achieves the objective of improving the receiver sensitivity, improves the network quality, coverage and capacity, and other issues.
Description
Technical field
The present invention relates in the wireless telecommunication system field receiving/transmission selection switch and antenna selection switch device in the antenna diversity transmit diversity receives under the time-division operating state the system, specifically, relate to receiving/transmission selection switch and antenna selection switch device in the system that two antenna diversity transmit diversities receive under the time-division operating state in the wireless telecommunication system field.
Background technology
In the time-division communication system, need receive and dispatch selection, simultaneously in order to improve communication quality, need carry out diversity emission and diversity reception, two antennas receive aerial signal simultaneously, and baseband board is by detecting, calculate and handle RSSI (the Received Signal Strength Indicator that receiver provides, the indication of received signal intensity) signal, determine the signal quality that current antenna receives, thereby provide the control signal of day line options, finish the function of day line options by Antenna Selection Module.In order to guarantee the balance of uplink and downlink link, the selection of transmission antenna remains in the collection of letters sky line options unanimity with time slot.Existing systems mainly adopts the device (as shown in Figure 1) of the mode of antenna selection switch and receiving/transmission selection switch series connection, 101, the 102nd, antenna 1 and antenna 2, the 104th, antenna selection switch, the 105th, receiving/transmission selection switch, all are radio-frequency (RF) switch, the 106th, the amplifier of transmission channel, the 107th, the LNA device of receive path.
Among Fig. 1, ANTSEL with/ANTSEL is the control signal of pair of control antenna selection switch, wherein ANTSEL be high (1) ,/ANTSEL is that low (0) selects transmission signal, selective reception signal conversely; The control signal of RXPAON and/RXPAON pair of control receiving/transmission selection switch, RXPAON be high (1), and/RXPAON is that low (0) selection antenna 1 is selected antenna 2 conversely, and these two groups of signals are all provided by base band.Major function is finish time division duplex (TDD) mode radio antenna multiplexing.In the system that two antenna diversity transmit diversities receive under the time-division operating state two major functions are arranged, the one, the signal that two antennas receive is sent into respectively in the receiver according to the transmitting-receiving time slot, be in two antennas, to select a transmitting antenna to send signal more in addition by it.
Because these two selector switches all are in antenna opening, their Insertion Loss will directly have influence on system noise factor, thereby influence the quality of receiving sensitivity, adopt the total Insertion Loss of in-line mode will be by the Insertion Loss of these two antennas and, it is big to have Insertion Loss, and noise factor is poor, the characteristics of poor sensitivity, and the receiving sensitivity of base station equipment not only is related to the quality of network, also has influence on the covering and the capacity of network.
Summary of the invention
Technical problem solved by the invention is to provide the device of a kind of receiving/transmission selection switch and antenna selection switch, how to reach the purpose of improving receiving sensitivity to solve, and improves the quality of network, the problem of covering and capacity.
In order to address the above problem, the invention provides the device of a kind of receiving/transmission selection switch and antenna selection switch, be applied in the dual-antenna system, it is characterized in that, described device comprises: two antennas, antenna selection switch device, receiving/transmission selection switch device, transmission channel amplifier, receive path LNA device, and the combiner of antenna selection switch/receiving/transmission selection switch control signal; Wherein, described two antennas link to each other with described combiner parallel way respectively with the receiving/transmission selection switch device by the antenna selection switch device, described transmission channel amplifier links to each other with described antenna selection switch device and sends signal, the described receive path LNA device received signal that links to each other with described receiving/transmission selection switch device, described combiner produces two control signals and carries out transmission signal and received signal operation by two antennas for described antenna selection switch device and receiving/transmission selection switch device according to receiving different control signals in the dual-antenna system.
Device of the present invention wherein, further comprises: described antenna selection switch device comprises two selecting side V1 and V2; Described receiving/transmission selection switch device comprises two selecting side V1 and V2; Described combiner produces two control signals and controls described antenna selection switch device and receiving/transmission selection switch device by two control channels, wherein, first control signal is controlled the V1 of described antenna selection switch device and the V2 of described receiving/transmission selection switch device by first control channel, and second control signal is controlled the V2 of described antenna selection switch device and the V1 of described receiving/transmission selection switch device by second control channel.
Further, described combiner comprises according to receiving different control signals in the dual-antenna system: ANTSEL ,/ANTSEL, RXPAON ,/RXPAON.
In order to address the above problem, the present invention also provides the device of a kind of receiving/transmission selection switch and antenna selection switch, be applied in the dual-antenna system, comprise first antenna, second antenna, one antenna selection switch device, one receiving/transmission selection switch device, an and combiner, it is characterized in that, described antenna selection switch device links to each other with described combiner with parallel way with the receiving/transmission selection switch device, described combiner to described antenna selection switch device and receiving/transmission selection switch device output control signal to control in described antenna selection switch device and the receiving/transmission selection switch device altogether end and to divide being connected of holding; The common end of described antenna selection switch device is connected in transmission channel and the receive path, the common end of described receiving/transmission selection switch device is connected to another in transmission channel and the receive path, two branch ends of described antenna selection switch device are connected respectively to two antennas, and two branch ends of described receiving/transmission selection switch device are connected respectively to two antennas.
Device of the present invention, wherein, described antenna selection switch device and receiving/transmission selection switch device all have two the control end V1 and the V2 that are connected to described combiner, described combiner outputs to two the control signal CTR1 and the CTR2 of described antenna selection switch device and receiving/transmission selection switch device, wherein control signal CTR1 is connected to the control end V1 of antenna selection switch device and the control end V2 of receiving/transmission selection switch device, and control signal CTR2 is connected to the control end V2 of antenna selection switch device and the control end V1 of receiving/transmission selection switch device.
Further, described control signal CTR1 be 1 and CTR2 be 0 o'clock, described antenna selection switch device with make the emission of first antenna, second antenna in two antennas receive being connected of receiving/transmission selection switch device; Described control signal CTR1 be 0 and CTR2 be 1 o'clock, described antenna selection switch device with make the emission of second antenna, first antenna in two antennas receive being connected of receiving/transmission selection switch device.
Further, the common end of described receiving/transmission selection switch device is connected to receive path LNA device, and the common end of described antenna selection switch device is connected to the transmission channel amplifier.
Adopt device of the present invention, reached the purpose of improving receiving sensitivity, improved the quality of network, problems such as covering and capacity.
Description of drawings
Fig. 1 is the theory diagram of the present invention's receiving/transmission selection switch described in the prior art and antenna selection switch device;
Fig. 2 is the theory diagram of receiving/transmission selection switch described in the embodiment of the invention and antenna selection switch device.
Embodiment
The present invention provides the device of a kind of receiving/transmission selection switch and antenna selection switch here, how to reach the purpose of improving receiving sensitivity to solve, and improves the quality of network, the problem of covering and capacity.Below embodiment is described in detail, but not as a limitation of the invention.
The present invention is primarily aimed at dual-antenna system, can expand accordingly for multiaerial system.
In as shown in Figure 2,201, the 202nd, antenna 1 and antenna 2, the 204th, the antenna selection switch device, the 205th, the receiving/transmission selection switch device, the 206th, the transmission channel amplifier, the 207th, receive path LNA device, and 203 be by ANTSEL and/ANTSEL antenna selection switch and RXPAON and/ device that the RXPAON transmit-receive switch combines.Antenna selection switch device 204 and receiving/transmission selection switch device 205 include be used for signal transmission one end and two branch ends altogether, and are used to control described end altogether and divide two selecting side V1 and the V2 that holds connected mode.Two branch ends of antenna selection switch device 204 and receiving/transmission selection switch device 205 are connected respectively to two antennas 201,202, the common end of antenna selection switch device 204 is connected to transmission channel amplifier 206, and the common end of receiving/transmission selection switch device 205 is connected to receive path LNA device 207.Two selecting side V1, V2 of antenna selection switch device 204 and receiving/transmission selection switch device 205 all are connected to the output of described combiner, constitute two control channels.Combiner 203 according to receive in the dual-antenna system different control signals (as ANTSEL ,/ANTSEL, RXPAON ,/RXPAON), produce two control signal CTR1, CTR2 and send to antenna selection switch device 204 and receiving/transmission selection switch device 205 by two control channels, first control signal (CTR1) is by the V1 of the first control channel control antenna selector switch device 204 and the V2 of receiving/transmission selection switch device 205, and second control signal (CTR2) is by the V2 of the second control channel control antenna selector switch device 204 and the V1 of receiving/transmission selection switch device 205.The input signal of combiner 203 be control signal ANTSEL ,/ANTSEL, RXPAON ,/RXPAON, above-mentioned control signal has determined control signal CTR1, the state of CTR2.
The logical relation of combiner 203 must satisfy following truth table:
| ANTSEL | ?/ANTSEL | ?RXPAON | ?/RXPAON | ?CTR1 | ?CTR2 | State |
| 1 | ?0 | ?1 | ?0 | ?1 | ?0 | Antenna 1, emission |
| 0 | ?1 | ?1 | ?0 | ?0 | ?1 | Antenna 2, emission |
| 1 | ?0 | ?0 | ?1 | ?0 | ?1 | Antenna 1 receives |
| 0 | ?1 | ?0 | ?1 | ?1 | ?0 | Antenna 2 receives |
As above shown in the table, control signal CTR1, the state of CTR2 by the control signal ANTSEL that receives ,/ANTSEL, RXPAON ,/RXPAON decision, at this moment the control signal that receives of antenna selection switch device 204 and receiving/transmission selection switch device 205 is just opposite, and CTR1 is by the V1 of the first control channel control switch 1 and the V2 of control switch 2; CTR2 is by the V2 of the second control channel control switch 1 and the V1 of control switch 2.
Device of the present invention is by the antenna selection switch of antenna opening and the device internal structure of receiving/transmission selection switch are changed into mode in parallel by the mode of series connection, reach and improve the purpose that noise factor improves receiving sensitivity, thereby can improve communication quality, covering and the capacity of system.According to the receiver sensitivity formula be:
P
min＝P
noise+NF
sys+SNR；
Wherein, NF
SysBe system noise factor, P
MinBe the receiving sensitivity of system, P
NoiseThe heat that is system is made an uproar, and SNR is the signal to noise ratio of system; From top formula, receiving sensitivity is subjected to the influence of noise factor very big, just can improve 1dB as long as noise factor improves the 1dB receiving sensitivity, and NF
SysInfluenced by receiver front end, wherein the front end passive device just equals its insertion loss to the influence of noise factor, therefore for NF among Fig. 1
Sys=S1+S2+NF
Meet sb. at the airport, and for NF among Fig. 2
Sys=S1 (S2)+NF
Receiver, wherein S1 is the Insertion Loss of dual-mode antenna selector switch, S2 is the Insertion Loss of antenna selection switch, considers the Insertion Loss=0.5dB of the Insertion Loss=antenna selection switch of S1=S2=receiving/transmission selection switch, then NF among Fig. 1
SYS=1+NF
Receiver, NF among Fig. 2
SYS=0.5+NF
Receiver, back receiver section one is touched the same, and then the mode of Fig. 2 can improve noise factor 0.5dB, thereby improves receiving sensitivity 0.5dB.
The present invention is under the situation of any hardware cost of not obvious increase, change the device internal structure of dual-mode antenna selector switch and antenna selection switch into mode in parallel, parallel total Insertion Loss will depend on the Insertion Loss of one of them switch, directly improved the noise factor of system, thereby the receiving sensitivity that reaches the improvement system improves the covering of network and the purpose of capacity.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1, the device of a kind of receiving/transmission selection switch and antenna selection switch, be applied in the dual-antenna system, it is characterized in that, described device comprises: two antennas, antenna selection switch device, receiving/transmission selection switch device, transmission channel amplifier, receive path LNA device, and the combiner of antenna selection switch/receiving/transmission selection switch control signal; Wherein, described two antennas link to each other with described combiner parallel way respectively with the receiving/transmission selection switch device by the antenna selection switch device, described transmission channel amplifier links to each other with described antenna selection switch device and sends signal, the described receive path LNA device received signal that links to each other with described receiving/transmission selection switch device, described combiner produces two control signals and carries out transmission signal and received signal operation by two antennas for described antenna selection switch device and receiving/transmission selection switch device according to receiving different control signals in the dual-antenna system.
2, device as claimed in claim 1 is characterized in that, further comprises: described antenna selection switch device comprises two selecting side V1 and V2; Described receiving/transmission selection switch device comprises two selecting side V1 and V2; Described combiner produces two control signals and controls described antenna selection switch device and receiving/transmission selection switch device by two control channels, wherein, first control signal is controlled the V1 of described antenna selection switch device and the V2 of described receiving/transmission selection switch device by first control channel, and second control signal is controlled the V2 of described antenna selection switch device and the V1 of described receiving/transmission selection switch device by second control channel.
3, device as claimed in claim 2 is characterized in that, described combiner comprises according to receiving different control signals in the dual-antenna system: ANTSEL ,/ANTSEL, RXPAON ,/RXPAON.
4, the device of a kind of receiving/transmission selection switch and antenna selection switch, be applied in the dual-antenna system, comprise first antenna, second antenna, an antenna selection switch device, a receiving/transmission selection switch device and a combiner, it is characterized in that, described antenna selection switch device links to each other with described combiner with parallel way with the receiving/transmission selection switch device, described combiner to described antenna selection switch device and receiving/transmission selection switch device output control signal to control in described antenna selection switch device and the receiving/transmission selection switch device altogether end and to divide being connected of holding; The common end of described antenna selection switch device is connected in transmission channel and the receive path, the common end of described receiving/transmission selection switch device is connected to another in transmission channel and the receive path, two branch ends of described antenna selection switch device are connected respectively to two antennas, and two branch ends of described receiving/transmission selection switch device are connected respectively to two antennas.
5, device as claimed in claim 4, it is characterized in that, described antenna selection switch device and receiving/transmission selection switch device all have two the control end V1 and the V2 that are connected to described combiner, described combiner outputs to two the control signal CTR1 and the CTR2 of described antenna selection switch device and receiving/transmission selection switch device, wherein control signal CTR1 is connected to the control end V1 of antenna selection switch device and the control end V2 of receiving/transmission selection switch device, and control signal CTR2 is connected to the control end V2 of antenna selection switch device and the control end V1 of receiving/transmission selection switch device.
6, device as claimed in claim 5 is characterized in that, described control signal CTR1 be 1 and CTR2 be 0 o'clock, described antenna selection switch device with make the emission of first antenna, second antenna in two antennas receive being connected of receiving/transmission selection switch device; Described control signal CTR1 be 0 and CTR2 be 1 o'clock, described antenna selection switch device with make the emission of second antenna, first antenna in two antennas receive being connected of receiving/transmission selection switch device.
7, device as claimed in claim 4 is characterized in that, the common end of described receiving/transmission selection switch device is connected to receive path LNA device, and the common end of described antenna selection switch device is connected to the transmission channel amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100855540A CN101242213B (en) | 2007-11-28 | 2008-03-17 | A receiving/transmission selection switch and antenna selection switch device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710196510.0 | 2007-11-28 | ||
| CN200710196510 | 2007-11-28 | ||
| CN2008100855540A CN101242213B (en) | 2007-11-28 | 2008-03-17 | A receiving/transmission selection switch and antenna selection switch device |
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| CN101242213A true CN101242213A (en) | 2008-08-13 |
| CN101242213B CN101242213B (en) | 2012-11-28 |
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| CN2008100855540A Expired - Fee Related CN101242213B (en) | 2007-11-28 | 2008-03-17 | A receiving/transmission selection switch and antenna selection switch device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856226A (en) * | 2012-12-04 | 2014-06-11 | 华为技术有限公司 | WLAN intelligent antenna system and method for transmitting data |
| CN106099367A (en) * | 2016-08-29 | 2016-11-09 | 广东欧珀移动通信有限公司 | Antenna assembly and mobile terminal |
| CN106506034A (en) * | 2016-12-05 | 2017-03-15 | 中国工程物理研究院电子工程研究所 | A kind of low noise switch diplexer |
| CN107394420A (en) * | 2017-06-16 | 2017-11-24 | 深圳市共进电子股份有限公司 | Active single-band antenna system |
| WO2019174233A1 (en) * | 2018-03-16 | 2019-09-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
| US10574285B2 (en) | 2018-03-16 | 2020-02-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
| US10727877B2 (en) | 2018-03-16 | 2020-07-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100316691B1 (en) * | 1999-11-10 | 2001-12-12 | 박종섭 | Device and method for diagnosing basestation transceiver subsystem antenna using switch |
| CN100358378C (en) * | 2003-07-17 | 2007-12-26 | 华为技术有限公司 | An adjusting apparatus and method for array antenna send-receive channel |
-
2008
- 2008-03-17 CN CN2008100855540A patent/CN101242213B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103856226A (en) * | 2012-12-04 | 2014-06-11 | 华为技术有限公司 | WLAN intelligent antenna system and method for transmitting data |
| CN103856226B (en) * | 2012-12-04 | 2016-03-30 | 华为技术有限公司 | A kind of WLAN antenna system and data transmission method |
| CN106099367A (en) * | 2016-08-29 | 2016-11-09 | 广东欧珀移动通信有限公司 | Antenna assembly and mobile terminal |
| CN106099367B (en) * | 2016-08-29 | 2019-05-14 | Oppo广东移动通信有限公司 | Antenna assembly and mobile terminal |
| CN106506034A (en) * | 2016-12-05 | 2017-03-15 | 中国工程物理研究院电子工程研究所 | A kind of low noise switch diplexer |
| CN107394420A (en) * | 2017-06-16 | 2017-11-24 | 深圳市共进电子股份有限公司 | Active single-band antenna system |
| WO2019174233A1 (en) * | 2018-03-16 | 2019-09-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
| US10554244B2 (en) | 2018-03-16 | 2020-02-04 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
| US10574285B2 (en) | 2018-03-16 | 2020-02-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
| US10727877B2 (en) | 2018-03-16 | 2020-07-28 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Multiway switch, radio frequency system, and wireless communication device |
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| CN101242213B (en) | 2012-11-28 |
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Effective date of registration: 20170825 Address after: 037000 No. 1, No. 22, building 6, Yuejin Street, Datong City, Shanxi Province Patentee after: Dong Li Address before: 518057 Nanshan District high tech Industrial Park, Guangdong, South Road, science and technology, ZTE building, legal department Patentee before: ZTE Corporation |
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Address after: 541002 No. two, No. 5, West Road, Xiangshan District, Guilin, the Guangxi Zhuang Autonomous Region Patentee after: Dong Li Address before: 037000 No. 1, No. 22, building 6, Yuejin Street, Datong City, Shanxi Province Patentee before: Dong Li |
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