CN206211999U - The radio circuit and mobile terminal of tdd systems - Google Patents
The radio circuit and mobile terminal of tdd systems Download PDFInfo
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- CN206211999U CN206211999U CN201621041122.6U CN201621041122U CN206211999U CN 206211999 U CN206211999 U CN 206211999U CN 201621041122 U CN201621041122 U CN 201621041122U CN 206211999 U CN206211999 U CN 206211999U
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- radiofrequency signal
- radio circuit
- transceiver
- wave filter
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Abstract
The utility model discloses the radio circuit and mobile terminal of a kind of tdd systems, including the transceiver for being processed the radiofrequency signal for receiving or send, for selecting the reception of radiofrequency signal described on or off or the switching switch arrays of sendaisle, wave filter for being filtered treatment to the radiofrequency signal, for being controlled to realize selecting the reception of radiofrequency signal or the controller of sendaisle described on or off to the switching switch arrays；By adding switching switch arrays between transceiver and wave filter, realize the rf signal reception of the same frequency range being operated under TDD mode and share a wave filter when sending, so that the quantity of wave filter reduces half, the volume of radio circuit reduces therewith, so as to save the motherboard space of terminal, cost is reduced.
Description
Technical field
The utility model is related to radio-frequency technique, and the radio circuit of more particularly to a kind of tdd systems and movement are eventually
End.
Background technology
With the high speed development of the mobile terminals such as mobile phone, present mobile terminal is made more and more thinner, increasingly exquisiteness.This
The mobile terminal that ultra-thin and superfinishing is caused is planted, taking up room for mainboard is have compressed, this will necessarily improve the requirement to chip integration,
Especially on front radio-frequency circuit.
At present, the portion radio frequency device integration used by mobile terminal is all very high, including transceiver (is integrated with modulation, mixes
Frequently, demodulation etc. function), power amplifier (being integrated with high, medium and low frequency power amplifier), dual-mode antenna switch (be integrated with more single
Single-pole single-throw, single-pole double throw etc. switch) etc. device.But, the integrated level of wave filter is but than relatively low, it is contemplated that present radio frequency band
High, medium and low frequency span scope is very big (low frequency 700M, high frequency 3G), the radio frequency for being used for the mobile terminal in different markets in addition
Frequency range difference is again very big, so either from technological layer, still taking cost into account, manufacturer is all unwilling to do wave filter
It is integrated, when the frequency range of radiofrequency signal increases, the quantity of wave filter increases therewith, and the volume of radio circuit can be caused to become big,
The motherboard space of mobile terminal is taken, cost is increased.
Utility model content
Based on this, it is necessary to the radio circuit and mobile terminal of a kind of tdd systems are provided, by reducing radio frequency electrical
The volume on road, so as to save the motherboard space of terminal, reduces cost.
On the one hand, the utility model proposes a kind of radio circuit of tdd systems, including：
Transceiver, for processing the radiofrequency signal for receiving or send；
Switching switch arrays, including several single-pole double-throw switch (SPDT)s, the first static contact connection of the single-pole double-throw switch (SPDT)
The receiving terminal of the transceiver, the second static contact connects the transmitting terminal of the transceiver, for selecting to be penetrated described on or off
The reception of frequency signal or sendaisle；
Several wave filters, each described wave filter connection corresponding with the moving contact of a single-pole double-throw switch (SPDT), use
In being filtered treatment to the radiofrequency signal；
Controller, for being controlled to realize radiofrequency signal described in selection on or off to the switching switch arrays
Reception or sendaisle.
Wherein in one embodiment, the number of frequency bands phase of the number of the single-pole double-throw switch (SPDT) and the radiofrequency signal
Together.
Wherein in one embodiment, the quantity of the wave filter is identical with the number of frequency bands of the radiofrequency signal.
Wherein in one embodiment, also including duplexer module, it is connected between the wave filter and dual-mode antenna,
For the signalling channel described in the on or off under the control action of controller between radiofrequency signal and dual-mode antenna.
Wherein in one embodiment, the frequency of the quantity of duplexer and the radiofrequency signal in the duplexer module
Segment number is identical, and each described wave filter is connected with a duplexer respectively.
Wherein in one embodiment, also including power amplifier, the input of the power amplifier connects the receipts
The transmitting terminal of device is sent out, the output end of the power amplifier connects the transmitting terminal of each single-pole double-throw switch (SPDT) and the transceiver
The not moved end of connection.
Wherein in one embodiment, the wave filter is bidirectional filter.
Wherein in one embodiment, the controller is bi-directionally connected with the transceiver, for receiving the transceiver
The radiofrequency signal of transmission is simultaneously processed, and the result after treatment is sent into the transceiver.
Wherein in one embodiment, also including the antennal interface of the connection dual-mode antenna.
On the other hand, the utility model proposes a kind of mobile terminal, including above-mentioned radio circuit.
The radio circuit and mobile terminal of above-mentioned tdd systems, including for entering to the radiofrequency signal for receiving or send
The transceiver of row treatment, for selecting the reception of radiofrequency signal described on or off or the switching switch arrays of sendaisle,
Wave filter for being filtered treatment to the radiofrequency signal, for being controlled to realize choosing to the switching switch arrays
Select the reception of radiofrequency signal described on or off or the controller of sendaisle；Added by between transceiver and wave filter
Switching switch arrays, realize the rf signal reception of the same frequency range being operated under TDD mode and send shared one
Wave filter so that the quantity of wave filter reduces half, the volume of radio circuit reduces therewith, so that the mainboard for saving terminal is empty
Between, reduces cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only more of the invention
Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains the accompanying drawing of other embodiment.
Fig. 1 is the circuit block diagram of the radio circuit of tdd systems in the embodiment that the utility model is provided.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with technology of the present utility model is belonged to
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all of combination of one or more related Listed Items.
Referring to Fig. 1, Fig. 1 is the circuit block of the radio circuit of tdd systems in the embodiment that the utility model is provided
Figure.
In the present embodiment, the radio circuit of the tdd systems, including：
Transceiver 10, for processing the radiofrequency signal for receiving or send, the radiofrequency signal is to be operated in the time-division
The radiofrequency signal of dual-mode；The radiofrequency signal specifically includes TD-LTE (Time Division Long Term
Evolution, timesharing Long Term Evolution) signal and TD-SCDMA (Time Division-Synchronous Code Division
Multiple Access, TD SDMA) etc. be operated in radiofrequency signal under TDD mode, the radiofrequency signal
Receive and transmission is, in the same frequency channel i.e. different time-gap of carrier wave, reception and transmission channel to be separated with the time is ensured, together
The radiofrequency signal of one frequency range can be filtered treatment by same wave filter 12.
Switching switch arrays 11, including several single-pole double-throw switch (SPDT)s, the first static contact of the single-pole double-throw switch (SPDT) connect
The receiving terminal of the transceiver 10 is connect, the second static contact connects the transmitting terminal of the transceiver 10, for selecting on or off
The reception of the radiofrequency signal or sendaisle.
Several wave filters 12, the connection corresponding with the moving contact of a single-pole double-throw switch (SPDT) of each described wave filter,
For being filtered treatment to the radiofrequency signal；One single-pole double-throw switch (SPDT) control a radiofrequency signal for frequency range sending and
Wave filter 12 corresponding during reception is attached, the quantity of wave filter 12 and the number phase of single-pole double-throw switch (SPDT)
Together, the radiofrequency signal different wave filters 12 of correspondence of different frequency range, the wave filter 12 is bidirectional filter 12, and radiofrequency signal can be with
Transmitted in both directions, the radiofrequency signal received and send that achieves a butt joint carries out timesharing filtering process.
Controller 13, for being controlled to realize radio frequency described in selection on or off to the switching switch arrays 11
The reception of signal or sendaisle.The control signal input of the controller 13 connection switching switch arrays 11, for the company of control
Signalling channel between the logical corresponding transceiver 10 of radiofrequency signal for being currently needed for receiving or sending and wave filter 12.The controller
13 are connected with the switching switch arrays 11 by bus expansion interface.
When the radiofrequency signal of a certain frequency range is received, the corresponding single-pole double-throw switch (SPDT) of radiofrequency signal of the frequency range is controlled to move
Make, to connect the receiving channel between transceiver and wave filter；When needing to launch the radiofrequency signal of the frequency range, the hilted broadsword is controlled
Commutator is switched to another branch road, to connect the sendaisle that transceiver, power amplifier and the wave filter are constituted, realizes
The radiofrequency signal of same frequency range shares a wave filter during transmitting-receiving.
It is general, radio circuit to the radiofrequency signal of same frequency range receive passage and sendaisle is respectively arranged with one
Wave filter 12 so that the quantity of wave filter 12 is the twice of the number of frequency bands of radiofrequency signal, and with the development of technology, user
The increase of demand, the number of frequency bands of radio circuit need radiofrequency signal to be processed can also increase therewith, the quantity phase of wave filter 12
That answers will be multiplied, above-mentioned radio circuit, by adding single-pole double-throw switch (SPDT) reality between transceiver 10 and wave filter 12
A wave filter 12 is now shared during receiving and transmission with the radiofrequency signal of frequency range so that the quantity of wave filter 12 and penetrate
The band number of frequency signal is consistent, greatly reducing the quantity of wave filter 12, reduces the volume of radio circuit.
Wherein in one embodiment, the radio circuit of the tdd systems also includes duplexer module 14, connection
Between the wave filter 12 and dual-mode antenna, for the radiofrequency signal described on or off under the control action of controller 13
Signalling channel between dual-mode antenna.The duplexer module 14 includes several duplexers, the quantity of the duplexer
Number of frequency bands with radiofrequency signal is identical, duplexer correspondence one wave filter 12 of connection, for turn-on and turn-off radio frequency
Signal sends and receives passage.Controller 13 is connected with the duplexer module 14 by MIPI (mobile Industry Processor Interface)
Connect.
Wherein in one embodiment, the radio circuit of the tdd systems also includes power amplifier 15, the work(
The input of rate amplifier 15 connects the transmitting terminal of the transceiver 10, and the output end connection of the power amplifier 15 is each described
The not moved end that single-pole double-throw switch (SPDT) is connected with the transmitting terminal of the transceiver 10.The power amplifier 15 is the power of multimode multi-frequency
Amplifier 15, can carry out power amplification treatment to the radio frequency of multiple frequency ranges.
Wherein in one embodiment, the controller 13 is bi-directionally connected with the transceiver 10, for receiving the receipts
The radiofrequency signal of the hair transmission of device 10 is simultaneously processed, and the result after treatment is sent into the transceiver 10.
Wherein in one embodiment, the radio circuit of the tdd systems also includes the day of the connection dual-mode antenna
Line interface 16, the dual-mode antenna is used to receive and send radiofrequency signal.The dual-mode antenna can receive and send multiple frequency ranges
Radiofrequency signal.
The radio circuit of above-mentioned tdd systems can be set in the terminal, and mobile terminal receiving and transmitting signal is carried out
Treatment, due to its small volume, the motherboard space of mobile terminal has been saved accordingly so that radio frequency can arrangement space increase so that
The disposal ability of mainboard is enhanced, number of devices is reduced, cost is also reduced.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of radio circuit of tdd systems, it is characterised in that including：
Transceiver, for processing the radiofrequency signal for receiving or send；
Switching switch arrays, including several single-pole double-throw switch (SPDT)s, the first static contact connection of the single-pole double-throw switch (SPDT) are described
The receiving terminal of transceiver, the second static contact connects the transmitting terminal of the transceiver, for selecting radio frequency described on or off to believe
Number reception or sendaisle；
Several wave filters, each described wave filter connection corresponding with the moving contact of a single-pole double-throw switch (SPDT), for right
The radiofrequency signal is filtered treatment；
Controller, for it is described switching switch arrays be controlled with realize selection on or off described in radiofrequency signal connect
Receive or sendaisle.
2. radio circuit according to claim 1, it is characterised in that the number of the single-pole double-throw switch (SPDT) and the radio frequency
The number of frequency bands of signal is identical.
3. radio circuit according to claim 1, it is characterised in that the quantity of the wave filter and the radiofrequency signal
Number of frequency bands is identical.
4. radio circuit according to claim 1, it is characterised in that also including duplexer module, be connected to the filter
Between ripple device and dual-mode antenna, for the radiofrequency signal described on or off under the control action of controller and dual-mode antenna it
Between signalling channel.
5. radio circuit according to claim 4, it is characterised in that the quantity of duplexer in the duplexer module
Number of frequency bands with the radiofrequency signal is identical, and each described wave filter is connected with a duplexer respectively.
6. radio circuit according to claim 1, it is characterised in that also including power amplifier, the power amplifier
Input connect the transmitting terminal of the transceiver, the output end of the power amplifier connect each single-pole double-throw switch (SPDT) with
The not moved end of the transmitting terminal connection of the transceiver.
7. radio circuit according to claim 1, it is characterised in that the wave filter is bidirectional filter.
8. radio circuit according to claim 1, it is characterised in that the controller is bi-directionally connected with the transceiver,
For receiving the radiofrequency signal of the transceiver transmission and being processed, the result after treatment is sent to the transceiver.
9. radio circuit according to claim 4, it is characterised in that also connect including connecting the antenna of the dual-mode antenna
Mouthful.
10. a kind of mobile terminal, it is characterised in that including described in any one claim in claim 1 to claim 9
Radio circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041122.6U CN206211999U (en) | 2016-09-06 | 2016-09-06 | The radio circuit and mobile terminal of tdd systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621041122.6U CN206211999U (en) | 2016-09-06 | 2016-09-06 | The radio circuit and mobile terminal of tdd systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211999U true CN206211999U (en) | 2017-05-31 |
Family
ID=58760089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621041122.6U Active CN206211999U (en) | 2016-09-06 | 2016-09-06 | The radio circuit and mobile terminal of tdd systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206211999U (en) |
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| CN109951192A (en) * | 2019-03-22 | 2019-06-28 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| CN109979175A (en) * | 2017-12-21 | 2019-07-05 | 成都长城开发科技有限公司 | Radio meter register equipment and its Dual channel reception module |
| CN110504982A (en) * | 2019-08-16 | 2019-11-26 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| CN110784241A (en) * | 2018-07-30 | 2020-02-11 | 瑞昱半导体股份有限公司 | Transceiver control circuit capable of shortening operating mode transition period of transceiver |
| WO2021104429A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN114531167A (en) * | 2020-11-02 | 2022-05-24 | 株式会社村田制作所 | High-frequency signal transceiving circuit |
| CN114614851A (en) * | 2020-12-08 | 2022-06-10 | Oppo广东移动通信有限公司 | Signal receiving and transmitting circuit, radio frequency system and mobile terminal |
| RU2791910C1 (en) * | 2019-03-22 | 2023-03-14 | Виво Мобайл Комьюникэйшн Ко., Лтд. | High-frequency input stage circuit and mobile terminal |
| JP7441456B2 (en) | 2018-09-11 | 2024-03-01 | ドゥードゥル ラボズ （エスジー） ピーティーイー リミテッド | Configurable smart radio module |
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| CN109979175B (en) * | 2017-12-21 | 2021-06-15 | 成都长城开发科技有限公司 | Wireless meter reading equipment and double-channel receiving module thereof |
| CN109979175A (en) * | 2017-12-21 | 2019-07-05 | 成都长城开发科技有限公司 | Radio meter register equipment and its Dual channel reception module |
| CN110784241A (en) * | 2018-07-30 | 2020-02-11 | 瑞昱半导体股份有限公司 | Transceiver control circuit capable of shortening operating mode transition period of transceiver |
| CN110784241B (en) * | 2018-07-30 | 2021-06-25 | 瑞昱半导体股份有限公司 | Transceiver control circuit capable of shortening operating mode transition period of transceiver |
| JP7441456B2 (en) | 2018-09-11 | 2024-03-01 | ドゥードゥル ラボズ （エスジー） ピーティーイー リミテッド | Configurable smart radio module |
| WO2020192427A1 (en) * | 2019-03-22 | 2020-10-01 | 维沃移动通信有限公司 | Radio frequency front-end circuit and mobile terminal |
| CN109951192B (en) * | 2019-03-22 | 2021-04-09 | 维沃移动通信有限公司 | Radio frequency front-end circuit and mobile terminal |
| CN109951192A (en) * | 2019-03-22 | 2019-06-28 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| KR20210139419A (en) * | 2019-03-22 | 2021-11-22 | 비보 모바일 커뮤니케이션 컴퍼니 리미티드 | Radio frequency front end circuits and mobile terminals |
| US11569850B2 (en) | 2019-03-22 | 2023-01-31 | Vivo Mobile Communication Co., Ltd. | Radio frequency front-end circuit and controller |
| RU2791910C1 (en) * | 2019-03-22 | 2023-03-14 | Виво Мобайл Комьюникэйшн Ко., Лтд. | High-frequency input stage circuit and mobile terminal |
| KR102559368B1 (en) | 2019-03-22 | 2023-07-24 | 비보 모바일 커뮤니케이션 컴퍼니 리미티드 | Radio frequency front end circuits and mobile terminals |
| US11757485B2 (en) | 2019-08-16 | 2023-09-12 | Vivo Mobile Communication Co., Ltd. | Radio frequency front-end circuit and mobile terminal |
| CN110504982A (en) * | 2019-08-16 | 2019-11-26 | 维沃移动通信有限公司 | A kind of RF front-end circuit and mobile terminal |
| WO2021104429A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN114531167A (en) * | 2020-11-02 | 2022-05-24 | 株式会社村田制作所 | High-frequency signal transceiving circuit |
| CN114531167B (en) * | 2020-11-02 | 2023-08-08 | 株式会社村田制作所 | High-frequency signal receiving and transmitting circuit |
| CN114614851A (en) * | 2020-12-08 | 2022-06-10 | Oppo广东移动通信有限公司 | Signal receiving and transmitting circuit, radio frequency system and mobile terminal |
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