CN104218967A - Wireless communication device - Google Patents
Wireless communication device Download PDFInfo
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- CN104218967A CN104218967A CN201310215537.5A CN201310215537A CN104218967A CN 104218967 A CN104218967 A CN 104218967A CN 201310215537 A CN201310215537 A CN 201310215537A CN 104218967 A CN104218967 A CN 104218967A
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Abstract
The invention provides a wireless communication device, which comprises an antenna, a first frequency band switching chip, a second frequency band switching chip, an arbiter and a central processing unit, wherein the first frequency band switching chip and the frequency band switching chip are both electrically connected to the antenna and both work at different frequency bands in a switchable manner, the arbiter is synchronously electrically connected to the first frequency band switching chip and the central processing unit for detecting the current working frequency band of the first frequency band switching chip and triggering an enable signal to the central processing unit, the central processing unit is electrically connected to the second frequency band switching chip for recognizing whether the second frequency band switching chip is in a working condition and controlling the working frequency band of the second frequency band switching chip according to the enable signal transmitted by the arbiter and the working condition of the second frequency band switching chip so as to make the working frequency band of the second frequency band switching chip be different from the working frequency band of the first frequency band switching chip. According to the wireless communication device, the design cost is effectively reduced.
Description
Technical field
The present invention relates to a kind of radio communication device, particularly a kind of radio communication device for double card bilateral can be realized.
Background technology
At present, part mobile phone is at global system for mobile communications (Global System For Mobile, GSM), code division multiple access (the Time Division-Synchronous Code Division Multiple Access of time division synchronous, TD-SCDMA) there is under isotype double card bilateral function, so that calling party converses with two callees simultaneously, realize Three Party Communication.For meeting double card bilateral needs, mobile phone needs built-in two antennas usually.But, use two antennas to be unfavorable for the miniaturization of mobile phone, also may because of the communication effect of the problems affect mobile phone of isolation between antennas.
Summary of the invention
In view of this, be necessary to provide a kind of radio communication device with Three Party Communication function and small volume.
A kind of radio communication device, it comprises antenna, first frequency range switches chip, second frequency range switches chip, arbiter and central processing unit, this first frequency range switches chip and the second frequency range switching chip is all electrically connected with antenna, and all switchably work in different frequency ranges, this arbiter switches chip with the first frequency range simultaneously and central processing unit is electrically connected, the frequency range of chip work at present is switched for detecting this first frequency range, and trigger enable signal to central processing unit, this central processing unit and the second frequency range switch chip and are electrically connected, whether in running order for identifying that this second frequency range switches chip, and the frequency range of chip operation is switched according to the enable signal of arbiter transmission and working state control second frequency range of the second frequency range switching chip, the frequency range that the first frequency range switches chip operation is different from the frequency range making the second frequency range switch chip operation.
A kind of radio communication device, it comprises antenna, first frequency range switches chip, second frequency range switches chip, arbiter and central processing unit, this first frequency range switches chip and the second frequency range switching chip is all electrically connected with antenna, and all switchably work in different frequency ranges, this arbiter switches chip with the first frequency range simultaneously and central processing unit is electrically connected, the frequency range of chip work at present is switched for detecting this first frequency range, and trigger enable signal to central processing unit, this central processing unit and the second frequency range switch chip and are electrically connected, when this second frequency range switching chip is in running order, this central processing unit controls according to the enable signal that arbiter transmits the frequency range that the second frequency range switches chip operation, so that the first frequency range switches chip and the second frequency range and switches chip operation in two different frequency ranges.
Above-mentioned radio communication device detects by arbiter the frequency range that the first frequency range switches chip work at present, to trigger enable signal to central processing unit, and then control by central processing unit the working frequency range that the second frequency range switches chip, so that the first frequency range switches chip and the second frequency range and switches chip operation in two different frequency ranges, to utilize these two different frequency ranges to set up Three-Way Calling.This radio communication device only uses an antenna to set up Three-Way Calling, effectively saves design cost, is convenient to the miniaturization of radio communication device.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the radio communication device of better embodiment of the present invention.
Main element symbol description
| Radio communication device | 100 |
| Antenna | 10 |
| First frequency range switches chip | 20 |
| Second frequency range switches chip | 30 |
| First signal transceiver | 40 |
| Secondary signal transceiver | 50 |
| Arbiter | 60 |
| Central processing unit | 70 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, better embodiment of the present invention provides a kind of radio communication device 100, and it can be mobile phone, personal digital assistant (Personal Digital Assistant, PDA) etc.
This radio communication device 100 can block by built-in two client identification module user identity (Subscriber Identity Module, SIM), and under the existing wireless communications mode such as GSM, TD-SCDMA can be worked in, to realize double card bilateral. simultaneouslyIn the present embodiment, introduced for the radio communication device 100 working in GSM mode.
This radio communication device 100 comprises antenna 10, first frequency range and switches chip 20, second frequency range switching chip 30, first signal transceiver 40, secondary signal transceiver 50, arbiter 60(Arbiter) and central processing unit 70.
This antenna 10 is a double frequency or multifrequency antenna, for the wireless signal of receiving and transmitting double frequency or multifrequency, and then the different frequency range under making this radio communication device 100 be applicable to same communication pattern.
This first frequency range switches chip 20 and the second frequency range switching chip 30 is all electrically connected with antenna 10, and all switchably work in different frequency ranges, so that the wireless signal with corresponding frequency band that antenna 10 is received and dispatched switches chip 20 by this first frequency range and the second frequency range switches chip 30.In the present embodiment, this first frequency range switches chip 20 and the second frequency range switching chip 30 is gsm communication frequency range switching chip, and this antenna 10 is for receiving and dispatching the wireless signal of GSM900 frequency range and GSM1800 frequency range.Corresponding, this first frequency range switches chip 20 and the second frequency range switching chip 30 switchably works in GSM900 frequency range and GSM1800 frequency range.
In the present embodiment, this first frequency range switches chip 20 and the second frequency range, and to switch chip 30 model identical, and this first frequency range switches chip 20 and gives tacit consent to and preferentially set up communication when Three Party Communication.
This first signal transceiver 40 is electrically connected at the first frequency range and switches between chip 20 and central processing unit 70, for carrying out demodulation to the wireless signal being switched chip 20 by the first frequency range, and the wireless signal after demodulation is sent to central processing unit 70; The baseband signal of this first signal transceiver 40 also for being transmitted by central processing unit 70 is modulated simultaneously, and the baseband signal after modulation is sent to the first frequency range switching chip 20.
This secondary signal transceiver 50 is electrically connected at the second frequency range and switches between chip 30 and central processing unit 70, for carrying out demodulation to the wireless signal being switched chip 30 by the second frequency range, and the wireless signal after demodulation is sent to central processing unit 70; The baseband signal of this secondary signal transceiver 50 also for being transmitted by central processing unit 70 is modulated simultaneously, and the baseband signal after modulation is sent to the second frequency range switching chip 30.
This arbiter 60 switches chip 20 with the first frequency range simultaneously and central processing unit 70 is electrically connected.This arbiter 60 switches the frequency range of chip 20 work at present for detecting this first frequency range, and each frequency range corresponding triggers an enable signal to central processing unit 70 respectively.Such as, when this first frequency range switching chip 20 works in GSM900 frequency range, this arbiter 60 triggers the first enable signal to central processing unit 70.When this first frequency range switching chip 20 works in GSM1800 frequency range, this arbiter 60 triggers the second enable signal to central processing unit 70.
Whether this central processing unit 70 and the second frequency range switch chip 30 and are electrically connected, in running order for identifying that this second frequency range switches chip 30.Simultaneously, this central processing unit 70 also for the frequency range that the working state control second frequency range switching chip 30 switching chip 30 according to enable signal and second frequency range of arbiter 60 transmission works, is different from the frequency range making the second frequency range switch chip 30 work the frequency range that the first frequency range switches chip 20 work.Particularly, when the second frequency range switching chip 30 is in running order, if central processing unit 70 receives the first enable signal that arbiter 60 transmits, central processing unit 70 judges that this first frequency range switches chip 20 and works in GSM900 frequency range, and then control second frequency range switching chip 30 works in GSM1800 frequency range; If central processing unit 70 receives the second enable signal that arbiter 60 transmits, central processing unit 70 judges that this first frequency range switches chip 20 and works in GSM1800 frequency range, and then control second frequency range switching chip 30 works in GSM900 frequency range.When the second frequency range switch chip 30 not in running order time, no matter central processing unit 70 receives the first enable signal or the second enable signal that arbiter 60 transmits, and central processing unit 70 all can not control this second frequency range switching chip 30.In the present embodiment, this central processing unit 70 controls by the mode switching chip 30 output logic control signal to the second frequency range the working frequency range that the second frequency range switches chip 30.
Further illustrate the operation principle of this radio communication device 100 below.
When this radio communication device 100 is applied to intercommunication, this first frequency range switches chip 20 and works, and this second frequency range switches chip 30 and do not work.The frequency range that this first frequency range switches chip 20 work at present detected by this arbiter 60, and triggers enable signal to central processing unit 70.Because now the second frequency range switching chip 30 is not in running order, therefore central processing unit 70 can not control the second frequency range switching chip 30.Now, communication calling party and callee set up intercommunication by any frequency range (such as GSM900 frequency range or GSM1800 frequency range).
When this radio communication device 100 is applied to Three Party Communication, this first frequency range switches chip 20 and the second frequency range switching chip 30 all works.The frequency range that this first frequency range switches chip 20 work at present detected by this arbiter 60, if when this first frequency range switching chip 20 works in GSM900 frequency range, this arbiter 60 triggers the first enable signal to central processing unit 70.This central processing unit 70 controls this second frequency range switching chip 30 immediately and works in GSM1800 frequency range.Now, communication calling party and the first callee set up by GSM900 frequency range and communicate, and are communicated by the foundation of GSM1800 frequency range with the second callee, and then set up Three Party Communication.
In like manner, if when this first frequency range switching chip 20 works in GSM1800 frequency range, this arbiter 60 triggers the second enable signal to central processing unit 70.This central processing unit 70 controls this second frequency range switching chip 30 immediately and works in GSM900 frequency range.Now, communication calling party and the first callee set up by GSM1800 frequency range and communicate, and are communicated by the foundation of GSM900 frequency range with the second callee, and then set up Three Party Communication.
Be appreciated that the antenna 10 of radio communication device 100 of the present invention also can be used for receiving and dispatching the wireless signal of GSM850 and GSM1900 frequency range, this GSM850 frequency range and GSM1900 frequency range are applied to U.S. locations.
Radio communication device 100 of the present invention detects by arbiter 60 frequency range that first frequency range switches chip 20 work at present, to trigger enable signal to central processing unit 70, and then control by central processing unit 70 working frequency range that second frequency range switches chip 30, switch chip 30 work in two different frequency ranges so that the first frequency range switches chip 20 and the second frequency range, to utilize these two different frequency ranges to set up Three-Way Calling.This radio communication device 100 only uses an antenna 10 can work in double card bilateral pattern, effectively saves design cost, is convenient to the miniaturization of radio communication device.
Claims (10)
1. a radio communication device, it comprises antenna, it is characterized in that: described radio communication device also comprises the first frequency range and switches chip, second frequency range switches chip, arbiter and central processing unit, this first frequency range switches chip and the second frequency range switching chip is all electrically connected with antenna, and all switchably work in different frequency ranges, this arbiter switches chip with the first frequency range simultaneously and central processing unit is electrically connected, the frequency range of chip work at present is switched for detecting this first frequency range, and trigger enable signal to central processing unit, this central processing unit and the second frequency range switch chip and are electrically connected, whether in running order for identifying that this second frequency range switches chip, and the frequency range of chip operation is switched according to the enable signal of arbiter transmission and working state control second frequency range of the second frequency range switching chip, the frequency range that the first frequency range switches chip operation is different from the frequency range making the second frequency range switch chip operation.
2. radio communication device as claimed in claim 1, is characterized in that: described antenna is double frequency or multifrequency antenna.
3. radio communication device as claimed in claim 1, is characterized in that: when the second frequency range switching chip is in running order, central processing unit controls according to enable signal the frequency range that the second frequency range switches chip operation; When the second frequency range switching chip is not in running order, central processing unit does not control the second frequency range and switches chip.
4. radio communication device as claimed in claim 3, is characterized in that: described central processing unit controls by the mode switching chip output logic control signal to the second frequency range the working frequency range that the second frequency range switches chip.
5. radio communication device as claimed in claim 1, is characterized in that: described first frequency range switches chip and the second frequency range switching chip is gsm communication frequency range switching chip.
6. radio communication device as claimed in claim 1, is characterized in that: described radio communication device also comprises the first signal transceiver, and this first signal transceiver is electrically connected at the first frequency range and switches between chip and central processing unit.
7. radio communication device as claimed in claim 1, is characterized in that: described radio communication device also comprises secondary signal transceiver, and described secondary signal transceiver is electrically connected at the second frequency range and switches between chip and central processing unit.
8. a radio communication device, it comprises antenna, it is characterized in that: described radio communication device also comprises the first frequency range and switches chip, second frequency range switches chip, arbiter and central processing unit, this first frequency range switches chip and the second frequency range switching chip is all electrically connected with antenna, and all switchably work in different frequency ranges, this arbiter switches chip with the first frequency range simultaneously and central processing unit is electrically connected, the frequency range of chip work at present is switched for detecting this first frequency range, and trigger enable signal to central processing unit, this central processing unit and the second frequency range switch chip and are electrically connected, when this second frequency range switching chip is in running order, this central processing unit controls according to the enable signal that arbiter transmits the frequency range that the second frequency range switches chip operation, so that the first frequency range switches chip and the second frequency range and switches chip operation in two different frequency ranges.
9. radio communication device as claimed in claim 8, is characterized in that: described first frequency range switches chip and the second frequency range switches the frequency range switching chip that chip is same standard.
10. radio communication device as claimed in claim 8, is characterized in that: when the second frequency range switching chip is not in running order, central processing unit does not control the second frequency range and switches chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215537.5A CN104218967A (en) | 2013-06-03 | 2013-06-03 | Wireless communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215537.5A CN104218967A (en) | 2013-06-03 | 2013-06-03 | Wireless communication device |
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| CN104218967A true CN104218967A (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310215537.5A Pending CN104218967A (en) | 2013-06-03 | 2013-06-03 | Wireless communication device |
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| CN104993843A (en) * | 2015-08-10 | 2015-10-21 | 联想(北京)有限公司 | Radio frequency circuit and radio frequency transmission method |
| CN106984551A (en) * | 2017-03-28 | 2017-07-28 | 顺丰科技有限公司 | Wireless sorting instruction device, wireless sorting indicate system and method |
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| CN2834029Y (en) * | 2005-11-03 | 2006-11-01 | 宁波高凌通信技术有限公司 | Shared antenna feed device for dual-mode mobile phone |
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Application publication date: 20141217 |
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