CN101583206A - TD-SCDMA dual-card dual-standby mobile terminal - Google Patents
TD-SCDMA dual-card dual-standby mobile terminal Download PDFInfo
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- CN101583206A CN101583206A CNA2009101077438A CN200910107743A CN101583206A CN 101583206 A CN101583206 A CN 101583206A CN A2009101077438 A CNA2009101077438 A CN A2009101077438A CN 200910107743 A CN200910107743 A CN 200910107743A CN 101583206 A CN101583206 A CN 101583206A
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- transmitter unit
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Abstract
The invention relates to a TD-SCDMA dual-card dual-standby mobile terminal, and the terminal comprises an antenna, a first radio frequency receiving unit, a second radio frequency receiving unit, a first radio frequency transmitting unit, a second radio frequency transmitting unit, a circulator, a band-pass filter, a low-noise amplifier, a power splitter, an amplifier and a combiner. The dual-card dual-standby mobile terminal reuses one antenna and reduces the structural difficulty and the cost, and two radio frequency systems can work simultaneously without interfering with each other.
Description
Technical field
The present invention relates to a kind of portable terminal, relate in particular to a kind of TD-SCDMA (TimeDivision-Synchronous Code Division Multiple Access, TD-SCDMA (Time Division-Synchronous Code Division Multiple Access)) dual-SIM-card dual-standby mobile terminal.
Background technology
Present TD-SCDMA standard dual-SIM-card dual-standby mobile terminal all is to utilize double antenna to realize basically.Just have two common-frequency aerials in such portable terminal, just there is following problem in this: 1, isolation between antennas is poor, and resonance, makes receiving sensitivity worsen; 2, two antennas take very big space, have increased volume, the cost of portable terminal; 3, antenna performance is higher to environment requirements, increases the layout difficulty, is unfavorable for portable terminal moulding needs.
Summary of the invention
Technical problem to be solved by this invention is, a kind of TD-SCDMA dual-SIM-card dual-standby mobile terminal is provided, and the present invention effectively eliminates disturbing mutually between two set of modules, has reduced cost, has dwindled terminal volume, has optimized design.
TD-SCDMA dual-SIM-card dual-standby mobile terminal of the present invention, comprise antenna, first rf receiver unit, second rf receiver unit, first rf transmitter unit and second rf transmitter unit, it is characterized in that, described terminal also comprises circulator, band pass filter, low noise amplifier, power splitter and mixer, wherein, described antenna links to each other with an end of described circulator, the signal that antenna receives is admitted to described band pass filter through the output of described circulator and carries out filtering, filtered signal enters described low noise amplifier and amplifies, be divided into two paths of signals through described power splitter afterwards, send into described first rf receiver unit and second rf receiver unit; The signal of described first rf transmitter unit and the emission of second rf transmitter unit is sent into described circulator behind synthetic one road signal of described mixer, launch through described antenna.
Described terminal also comprises an amplifier, and described amplifier is connected between the input of the output of described mixer and described circulator, before the signal of described mixer synthetic a tunnel is being admitted to described circulator, also amplifies through described amplifier.
Described terminal also comprises first amplifier and second amplifier, and described first amplifier input terminal is connected with described first rf transmitter unit, and output is connected with an input of described mixer; The input of described second amplifier is connected with described second rf transmitter unit, output links to each other with another input of described mixer, and the signal of described first rf transmitter unit and the emission of second rf transmitter unit also amplifies respectively before being admitted to mixer.
The signal that described antenna receives is admitted to described band pass filter through the output of described circulator and carries out filtering, filtered signal enters described low noise amplifier and amplifies, be divided into two paths of signals through described power splitter afterwards, send into described first rf receiver unit and second rf receiver unit.
Among the present invention, two cover radio-frequency modules shared antennas of dual-SIM-card dual-standby mobile terminal have effectively prevented from contingently between two cover radio-frequency modules to disturb mutually.The present invention only relates to the comprehensive of radio frequency part, and it is easier to realize, saves the space, has optimized radio-frequency (RF) index, is beneficial to the portable terminal shape-designing, has saved cost.
Description of drawings
Fig. 1 is first kind of example structure schematic diagram of portable terminal of the present invention;
Fig. 2 is second kind of example structure schematic diagram of portable terminal of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention done being described in further detail.
As shown in Figure 1, be first kind of example structure schematic diagram of portable terminal of the present invention, antenna when present embodiment adopts circulator to realize the module transmitting-receiving is shared, so present embodiment comprises antenna, circulator, band pass filter, low noise amplifier LNA, power splitter, the first rf receiver unit RX1, the second rf receiver unit RX2, the first rf transmitter unit TX1, (the first rf receiver unit RX1 and the first rf transmitter unit TX1 are contained in the TD1 module to the second rf transmitter unit TX2, the second rf receiver unit RX2 and the second rf transmitter unit TX2 are contained in the TD2 module), mixer and amplifier PA, wherein
Antenna, circulator, band pass filter, low noise amplifier LNA, power splitter, the first rf receiver unit RX1, the second rf receiver unit RX2 form the reception path of portable terminal; Circulator carries out filtering (eliminating the outer interference of band) with the signal forwarding that antenna receives to band pass filter, filtered signal enters low noise amplifier LNA and amplifies, be divided into two paths of signals through power splitter afterwards, send into the first rf receiver unit RX1 and the second rf receiver unit RX2; Because received signal is to be divided into two paths of signals again after amplifying through low noise amplifier LNA earlier to give RX1, RX2, so effectively reduce noise factor, has guaranteed the sensitivity of RX1, RX2.
The first rf transmitter unit TX1, the second rf transmitter unit TX2, mixer and amplifier PA, circulator, antenna are formed the emission path of portable terminal, the signal of the first rf transmitter unit TX1 and second rf transmitter unit TX2 emission is sent into amplifier PA and is amplified behind synthetic one road signal of mixer, send into circulator afterwards and launch through antenna.
For first embodiment, the ON/OFF control signal of control of the ON/OFF of low noise amplifier LNA and amplifier PA respectively by baseband portion directly control (logical relation be or relation, when being the RX cell operation of TD1 and the arbitrary module of TD2, low noise amplifier LNA switch opens; During the TX cell operation of TD1 and the arbitrary module of TD2, amplifier PA switch opens).
As shown in Figure 2, be second kind of example structure schematic diagram of portable terminal of the present invention, comprise antenna, circulator, band pass filter, low noise amplifier LNA, power splitter, the first rf receiver unit RX1, the second rf receiver unit RX2, the first rf transmitter unit TX1, (the first rf receiver unit RX1 and the first rf transmitter unit TX1 are contained in the TD1 module to the second rf transmitter unit TX2, the second rf receiver unit RX2 and the second rf transmitter unit TX2 are contained in the TD2 module), the first amplifier PA1, second amplifier PA2 and the mixer, wherein
Antenna, circulator, band pass filter, low noise amplifier LNA, power splitter, the first rf receiver unit RX1, the second rf receiver unit RX2 form the reception path of portable terminal; Circulator carries out filtering with the signal forwarding that antenna receives to band pass filter, filtered signal enters low noise amplifier LNA and amplifies, be divided into two paths of signals through power splitter afterwards, send into the first rf receiver unit RX1 and the second rf receiver unit RX2; The reception path that is portable terminal is identical with the described embodiment of Fig. 1; Difference is to launch path, embodiment illustrated in fig. 1 is two-way to be transmitted to close the road earlier, carry out amplifying emission afterwards again, and embodiment illustrated in fig. 2 be two-way to be transmitted to amplify respectively earlier, and then close the road and launch, the TX1 and the TX2 that are present embodiment have adopted independently power amplifier work, so emission path in the present embodiment is by the first rf transmitter unit TX1, the second rf transmitter unit TX2, the first amplifier PA1, the second amplifier PA2, mixer, circulator and antenna are formed, the signal of the first rf transmitter unit TX1 and second rf transmitter unit TX2 emission is sent into the first amplifier PA1 respectively, the second amplifier PA2 amplifies, send into mixer afterwards, be synthesized and send into circulator behind one road signal and launch through antenna.
For second embodiment, the ON/OFF of low noise amplifier LNA control by baseband portion directly control (logical relation be or relation, promptly during the RX cell operation of TD1 and the arbitrary module of TD2, low noise amplifier LNA switch opens).The switch controlling signal of PA1 and PA2 is continued to use original PA control signal of module TD1 and TD2.
Among the present invention, the application of circulator makes two cover radio-frequency modules can utilize identical radio frequency path to realize working alone; Realize a shared radio-frequency transmissions path by mixer, the isolation between the two paths of signals of mixer has 30dB, can effectively keep the independence of the transmitter unit of two cover radio-frequency modules.
When the TD1 of portable terminal and TD2 are in holding state, the signal of TD frequency range all receives by antenna, give band pass filter by circulator and carry out filtering, giving low noise amplifier LNA afterwards amplifies, distribute to the rf receiver unit RX1 and the RX2 of portable terminal after the TD signal is exported from low noise amplifier LNA through power splitter, carry out subsequent treatment such as channel selection, down-conversion respectively by RX1 and RX2.Low noise amplifier LNA works during any work of rf receiver unit RX1 and RX2, if RX1 and RX2 do not work, then low noise amplifier LNA turn-offs, so just realized the isolation between the module transmitting-receiving, guaranteed that signal all was transparent before arriving RX1 and RX2 for RX1, RX2.
When the TD1 of portable terminal and TD2 are in talking state, utilize mixer the common-frequency time division signal of rf transmitter unit TX1 and TX2 emission or alien frequencies signal synthetic a tunnel, after sending amplifier PA to amplify through circulator, launch by antenna, amplifier PA works during any work of TX1 and TX2, if TX1, TX2 do not work, then amplifier PA also turn-offs.
The multiplexing antenna of TD-SCDMA dual-SIM-card dual-standby mobile terminal of the present invention has reduced structure difficulty and cost, and two radio systems can be worked simultaneously and be noiseless mutually.
Claims (4)
1, a kind of TD-SCDMA dual-SIM-card dual-standby mobile terminal, comprise antenna, first rf receiver unit, second rf receiver unit, first rf transmitter unit and second rf transmitter unit, it is characterized in that, described terminal also comprises circulator, band pass filter, low noise amplifier, power splitter and mixer, wherein, described antenna links to each other with an end of described circulator, the signal that antenna receives is admitted to described band pass filter through the output of described circulator and carries out filtering, filtered signal enters described low noise amplifier and amplifies, be divided into two paths of signals through described power splitter afterwards, send into described first rf receiver unit and second rf receiver unit; The signal of described first rf transmitter unit and the emission of second rf transmitter unit is sent into described circulator behind synthetic one road signal of described mixer, launch through described antenna.
2, TD-SCDMA dual-SIM-card dual-standby mobile terminal as claimed in claim 1, it is characterized in that, described terminal also comprises an amplifier, described amplifier is connected between the input of the output of described mixer and described circulator, before the signal of described mixer synthetic a tunnel is being admitted to described circulator, also amplify through described amplifier.
3, TD-SCDMA dual-SIM-card dual-standby mobile terminal as claimed in claim 1, it is characterized in that, described terminal also comprises first amplifier and second amplifier, and described first amplifier input terminal is connected with described first rf transmitter unit, and output is connected with an input of described mixer; The input of described second amplifier is connected with described second rf transmitter unit, output links to each other with another input of described mixer, and the signal of described first rf transmitter unit and the emission of second rf transmitter unit also amplifies respectively before being admitted to mixer.
4, TD-SCDMA dual-SIM-card dual-standby mobile terminal as claimed in claim 1, it is characterized in that, the signal that described antenna receives is admitted to described band pass filter through the output of described circulator and carries out filtering, filtered signal enters described low noise amplifier and amplifies, be divided into two paths of signals through described power splitter afterwards, send into described first rf receiver unit and second rf receiver unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101077438A CN101583206B (en) | 2009-05-27 | 2009-05-27 | TD-SCDMA dual-card dual-standby mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101077438A CN101583206B (en) | 2009-05-27 | 2009-05-27 | TD-SCDMA dual-card dual-standby mobile terminal |
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| Publication Number | Publication Date |
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| CN101583206A true CN101583206A (en) | 2009-11-18 |
| CN101583206B CN101583206B (en) | 2011-05-11 |
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| CN2009101077438A Expired - Fee Related CN101583206B (en) | 2009-05-27 | 2009-05-27 | TD-SCDMA dual-card dual-standby mobile terminal |
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| RU2471223C2 (en) * | 2010-06-22 | 2012-12-27 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Mobile terminal and method to control communication data transfer and device to display list of communication in it |
| CN103035991A (en) * | 2012-12-26 | 2013-04-10 | 成都天奥电子股份有限公司 | Insertion loss and compensation microwave communication relay combiner system |
| CN103297076A (en) * | 2013-05-15 | 2013-09-11 | 西安烽火电子科技有限责任公司 | Short-wave broadband multi-channel receiving device and method |
| CN103781103A (en) * | 2014-01-21 | 2014-05-07 | 上海华为技术有限公司 | Air interface scanning system and method, and communication device |
| WO2015024282A1 (en) * | 2013-08-19 | 2015-02-26 | 中兴通讯股份有限公司 | Signal processing method and apparatus, and mobile terminal |
| CN104779970A (en) * | 2014-01-13 | 2015-07-15 | 深圳市欧标实业发展有限公司 | Multiband active shunt device and wireless network coverage communication system |
| 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 |
| CN106558760A (en) * | 2015-09-25 | 2017-04-05 | 小米科技有限责任公司 | Antenna module, electronic equipment and method of controlling antenna |
| CN108282173A (en) * | 2018-02-28 | 2018-07-13 | 北京小米移动软件有限公司 | Method for receiving and processing signal and device |
| CN109212487A (en) * | 2018-09-27 | 2019-01-15 | 芜湖博高光电科技股份有限公司 | A kind of TR component of two-band one |
| CN111313915A (en) * | 2020-03-23 | 2020-06-19 | 维沃移动通信有限公司 | Electronic equipment |
| CN112532268A (en) * | 2019-09-19 | 2021-03-19 | 中兴通讯股份有限公司 | Communication circuit and communication equipment |
| CN113055043A (en) * | 2021-03-22 | 2021-06-29 | 西安易朴通讯技术有限公司 | Signal processing system and electronic equipment |
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2009
- 2009-05-27 CN CN2009101077438A patent/CN101583206B/en not_active Expired - Fee Related
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| US8621397B2 (en) | 2010-06-22 | 2013-12-31 | Lg Electronics Inc. | Mobile terminal and method of controlling communication data transmission and communication list display therein |
| RU2471223C2 (en) * | 2010-06-22 | 2012-12-27 | ЭлДжи ЭЛЕКТРОНИКС ИНК. | Mobile terminal and method to control communication data transfer and device to display list of communication in it |
| CN103035991B (en) * | 2012-12-26 | 2015-09-09 | 成都天奥电子股份有限公司 | The microwave radio relay communication combiner system that a kind of Insertion Loss compensates |
| CN103035991A (en) * | 2012-12-26 | 2013-04-10 | 成都天奥电子股份有限公司 | Insertion loss and compensation microwave communication relay combiner system |
| CN103297076A (en) * | 2013-05-15 | 2013-09-11 | 西安烽火电子科技有限责任公司 | Short-wave broadband multi-channel receiving device and method |
| WO2015024282A1 (en) * | 2013-08-19 | 2015-02-26 | 中兴通讯股份有限公司 | Signal processing method and apparatus, and mobile terminal |
| CN104427656A (en) * | 2013-08-19 | 2015-03-18 | 中兴通讯股份有限公司 | Signal processing method and device and mobile terminal |
| CN104779970A (en) * | 2014-01-13 | 2015-07-15 | 深圳市欧标实业发展有限公司 | Multiband active shunt device and wireless network coverage communication system |
| CN104779970B (en) * | 2014-01-13 | 2017-07-07 | 深圳市欧标实业发展有限公司 | Multiband active splitter apparatus and wireless network covering communication system |
| CN103781103A (en) * | 2014-01-21 | 2014-05-07 | 上海华为技术有限公司 | Air interface scanning system and method, and communication device |
| WO2015110007A1 (en) * | 2014-01-21 | 2015-07-30 | 华为技术有限公司 | Air interface scanning system, method and communication device |
| CN103781103B (en) * | 2014-01-21 | 2017-12-22 | 上海华为技术有限公司 | Air interface scanning system, method and communication equipment |
| CN106558760A (en) * | 2015-09-25 | 2017-04-05 | 小米科技有限责任公司 | Antenna module, electronic equipment and method of controlling antenna |
| 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 |
| CN108282173A (en) * | 2018-02-28 | 2018-07-13 | 北京小米移动软件有限公司 | Method for receiving and processing signal and device |
| CN109212487A (en) * | 2018-09-27 | 2019-01-15 | 芜湖博高光电科技股份有限公司 | A kind of TR component of two-band one |
| CN112532268A (en) * | 2019-09-19 | 2021-03-19 | 中兴通讯股份有限公司 | Communication circuit and communication equipment |
| CN112532268B (en) * | 2019-09-19 | 2023-10-20 | 中兴通讯股份有限公司 | Communication circuit and communication equipment |
| CN111313915A (en) * | 2020-03-23 | 2020-06-19 | 维沃移动通信有限公司 | Electronic equipment |
| CN113055043A (en) * | 2021-03-22 | 2021-06-29 | 西安易朴通讯技术有限公司 | Signal processing system and electronic equipment |
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| CN101583206B (en) | 2011-05-11 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20091118 Assignee: SHENZHEN ZTE MICROELECTRONICS TECHNOLOGY CO., LTD. Assignor: ZTE Corporation Contract record no.: 2015440020319 Denomination of invention: TD-SCDMA dual-card dual-standby mobile terminal Granted publication date: 20110511 License type: Common License Record date: 20151123 |
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Effective date of registration: 20170824 Address after: Nanzhao County of Henan Province in 474666 clay Castle Village three gang Zhen Group No. 12 Co-patentee after: Zhang Chunying Patentee after: Ma Lichun Co-patentee after: Zhan Jicai Co-patentee after: Bai Lei Co-patentee after: Jin Chunnv Address before: 518057 Nanshan District, Guangdong high tech Industrial Park, science and Technology Industrial Park, ZTE building, block A, layer 6, layer Patentee before: ZTE Corporation |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Lichun Inventor after: Zhang Chunying Inventor after: Zhan Jicai Inventor after: Bai Lei Inventor after: Jin Chunnv Inventor before: Yan Zhenhao |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20180527 |