CN101207874B - Stand-by communication device simultaneous for code division multiple access and global mobile communication system - Google Patents

Stand-by communication device simultaneous for code division multiple access and global mobile communication system Download PDF

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CN101207874B
CN101207874B CN2006101700980A CN200610170098A CN101207874B CN 101207874 B CN101207874 B CN 101207874B CN 2006101700980 A CN2006101700980 A CN 2006101700980A CN 200610170098 A CN200610170098 A CN 200610170098A CN 101207874 B CN101207874 B CN 101207874B
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division multiple
code division
multiple access
mobile communications
global system
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CN101207874A (en
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林坤郎
陈永进
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Wistron Neweb Corp
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Wistron Neweb Corp
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Abstract

The invention discloses a communications device that can standby both in two-frequency CDMA communications system and in two-frequency GSM. The two-frequency CDMA communications system includes a personal communications service CDMA communications system and a cellular CDMA communications system; the two-frequency GSM includes 900MHz GSM and 1800MHz GSM. The communications device includes a wireless signal receiving/emitting module, a CDMA processing module, a GSM processing module, a first CDMA filter unit, a second CDMA filter, a first GSM filter unit and a second GSM filter unit.

Description

The communication device of standby under code division multiple access and global system for mobile communications simultaneously
Technical field
The present invention is meant a kind of communication device, refer to especially a kind of can be simultaneously the communication device of standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency.
Background technology
Quick and the development highly along with wireless communication technique, light and handy mobile phone easily changes person to person's communication way greatly.By mobile phone, people can carry out voice or information exchange whenever and wherever possible.According to different mechanicss of communication, known technology has developed and many different mobile communcations systems, as global system for mobile communications (Global System for Mobile Communications, GSM), code division multiple access inserts (Code Division Multiple Access, CDMA) communication system, Wideband Code Division Multiple Access (WCDMA) inserts (Wideband Code Division Multiple Access, WCDMA) communication system, individual digital mobile phone (Personal Digital Cellular, PDC) system, personal handhold telephone system (Personal Handyphone System, PHS) etc.
Wherein, global system for mobile communications is called pan-European formula digital mobile telephony again, can be according to the difference of frequency of operation, the global system for mobile communications that is divided into 900 megahertzes (MHz) and 1800 megahertzes, and the global system for mobile communications of 1800 megahertzes be called the digital cellular mobile telephone system (Digital CellularSystem, DCS).The frequency acceptance band of the global system for mobile communications of 900 megahertzes is between 925.2 megahertzes and 959.8 megahertzes, and transmission band is then between 880.2 megahertzes and 914.8 megahertzes; The frequency acceptance band of the global system for mobile communications of 1800 megahertzes is between 1805.2 megahertzes and 1879.8 megahertzes, and transmission band is then between 1710.2 megahertzes and 1784.8 megahertzes.
On the other hand, code division multiple access incoming communication system can be divided into the code division multiple access incoming communication system of honeycomb fashion (Cellular) of 800 megahertzes and person-to-person communication service (PersonalCommunications Services, code division multiple access incoming communication system PCS) of 1900 megahertzes.The frequency acceptance band of the code division multiple access incoming communication system of honeycomb fashion is between 869 megahertzes and 894 megahertzes, and transmission band is then between 824 megahertzes and 849 megahertzes; The frequency acceptance band of the code division multiple access incoming communication system of person-to-person communication service is between 1930 megahertzes and 1990 megahertzes, and transmission band is then between 1850 megahertzes and 1910 megahertzes.
As from the foregoing, the code division multiple access incoming communication system of the global system for mobile communications of 900 megahertzes and honeycomb fashion has partial frequency spectrum to overlap (880.2～894 megahertz), and also there is partial frequency spectrum overlapping (1850～1879.8 megahertz) in the code division multiple access incoming communication system of the global system for mobile communications of 1800 megahertzes and person-to-person communication service.Please refer to Fig. 1 and Fig. 2, Fig. 1 is the schematic diagram of crossover between the frequency band (CDMA800 Cellular Band) of code division multiple access incoming communication system of the frequency band (GSM900Band) of the global system for mobile communications of 900 megahertzes and honeycomb fashion, and Fig. 2 is the schematic diagram of crossover between the frequency band (CDMA1900PCS Band) of code division multiple access incoming communication system of the frequency band (GSM1800Band) of the global system for mobile communications of 1800 megahertzes and person-to-person communication service.Wherein, hatched example areas is represented the part of frequency spectrum crossover.Because the global system for mobile communications of 900 megahertzes and the code division multiple access incoming communication system of honeycomb fashion have partial frequency spectrum to overlap, therefore, known technology can't provide the mobile phone of standby simultaneously in the code division multiple access incoming communication system of the global system for mobile communications of 900 megahertzes and honeycomb fashion, or the mobile phone of standby simultaneously in the code division multiple access incoming communication system that the global system for mobile communications and the person-to-person communication of 1800 megahertzes are served.
Summary of the invention
Therefore, main purpose of the present invention promptly be to provide a kind of can be simultaneously the communication device of standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency.
The present invention disclose a kind of can be simultaneously the communication device of standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency, the code division multiple access incoming communication system of this double frequency comprises the code division multiple access incoming communication system of person-to-person communication service and the code division multiple access incoming communication system of honeycomb fashion, the global system for mobile communications of this double frequency comprises the global system for mobile communications of 900 megahertzes and the global system for mobile communications of 1800 megahertzes, and this communication device includes the wireless signal transceiver module, code division multiple access inserts processing module, the global system for mobile communications processing module, first code division multiple access inserts filter unit, second code division multiple access inserts filter unit, the first global system for mobile communications filter unit and the second global system for mobile communications filter unit.This wireless signal transceiver module is used for receiving and transmitted radio signal.This code division multiple access inserts the signal that processing module is used for handling the code division multiple access incoming communication system of this double frequency, includes first duplexer, is coupled to this wireless signal transceiver module; Second duplexer is coupled to this wireless signal transceiver module; First code division multiple access inserts receiver module, is coupled to this first duplexer, is used for receiving by this first duplexer the signal of the code division multiple access incoming communication system of person-to-person communication service; First code division multiple access inserts transmitter module, is coupled to this first duplexer, is used for outputing signal to the code division multiple access incoming communication system that this person-to-person communication is served by this first duplexer; Second code division multiple access inserts receiver module, is coupled to this second duplexer, is used for receiving by this second duplexer the signal of the code division multiple access incoming communication system of honeycomb fashion; And second code division multiple access insert transmitter module, be coupled to this second duplexer, be used for outputing signal to the code division multiple access incoming communication system of this honeycomb fashion by this second duplexer.This global system for mobile communications processing module is used for handling the signal of the global system for mobile communications of this double frequency, includes first transmit/receive switch, is coupled to this wireless signal transceiver module; Second transmit/receive switch is coupled to this wireless signal transceiver module; The first global system for mobile communications receiver module is coupled to this first transmit/receive switch, is used for receiving the signal of the global system for mobile communications of 900 megahertzes by this first transmit/receive switch; The first global system for mobile communications transmitter module is coupled to this first transmit/receive switch, is used for outputing signal to the global system for mobile communications of this 900 megahertz by this first transmit/receive switch; The second global system for mobile communications receiver module is coupled to this second transmit/receive switch, is used for receiving the signal of the global system for mobile communications of 1800 megahertzes by this second transmit/receive switch; And the second global system for mobile communications transmitter module, be coupled to this second transmit/receive switch, be used for outputing signal to the global system for mobile communications of this 1800 megahertz by this second transmit/receive switch.This first code division multiple access inserts filter unit and is coupled to this first code division multiple access access transmitter module, being used for this first code division multiple access of filtering inserts in the signal band that transmitter module exports, and is positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this person-to-person communication service and this 1800 megahertz.This second code division multiple access inserts filter unit and is coupled to this second code division multiple access access receiver module, being used for this second code division multiple access of filtering inserts in signal band that receiver module received, and is positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this honeycomb fashion and this 900 megahertz.This first global system for mobile communications filter unit is coupled to this first global system for mobile communications transmitter module, be used in the signal band that this first global system for mobile communications transmitter module of filtering launched, be positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this honeycomb fashion and this 900 megahertz.This second global system for mobile communications filter unit, be coupled to this second global system for mobile communications receiver module, be used in the signal band that this second global system for mobile communications receiver module of filtering received, be positioned at the part of band overlap between the global system for mobile communications of the code division multiple access incoming communication system of this person-to-person communication service and this 1800 megahertz.
Description of drawings
Fig. 1 is the schematic diagram of crossover between the frequency band of code division multiple access incoming communication system of the frequency band of global system for mobile communications of 900 megahertzes and honeycomb fashion.
Fig. 2 is the schematic diagram of crossover between the frequency band of code division multiple access incoming communication system of the frequency band of global system for mobile communications of 1800 megahertzes and person-to-person communication service.
Fig. 3 is the schematic diagram of first embodiment of the invention communication device.
Fig. 4 is the schematic diagram that first code division multiple access inserts filter unit among Fig. 3.
Fig. 5 is the schematic diagram that second code division multiple access inserts filter unit among Fig. 3.
Fig. 6 is the schematic diagram of global system for mobile communications processing module.
The schematic diagram of Fig. 7 display radio signal transmitting and receiving module.
The schematic diagram of Fig. 8 display radio signal transmitting and receiving module 80.
[main element label declaration]
30 communication devices
300,70,80 wireless signal transceiver modules
302 code division multiple accesss insert processing module
304,60 global system for mobile communications processing modules
306 first code division multiple accesss insert filter unit
308 second code division multiple accesss insert filter unit
310 first global system for mobile communications filter units
312 second global system for mobile communications filter units
314 first duplexers
316 first code division multiple accesss insert receiver module
318 first code division multiple accesss insert transmitter module
320 second duplexers
322 second code division multiple accesss insert receiver module
324 second code division multiple accesss insert transmitter module
326 code division multiple accesss insert receiver
328 code division multiple accesss insert transmitter
330 first transmit/receive switchs
332 first global system for mobile communications receiver modules
334 first global system for mobile communications transmitter modules
336 second transmit/receive switchs
338 second global system for mobile communications receiver modules
340 second global system for mobile communications transmitter modules
342 global system for mobile communications receivers
344 global system for mobile communications transmitters
400,500 first radio frequency switchs
402,502 second radio frequency switchs
404, the band pass filter of 504 narrow-bands
406,506 wide band band pass filters
600 transmit/receive switchs
602,604,606 band pass filters
608 power amplifiers
610 global system for mobile communications transceivers
700,800,802 antennas
702,804 fens multiplexers
Embodiment
Please refer to Fig. 3, Fig. 3 is the schematic diagram of first embodiment of the invention communication device 30.Communication device 30 can be simultaneously standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency, the code division multiple access incoming communication system of double frequency comprises the code division multiple access incoming communication system of person-to-person communication service and honeycomb fashion, and the global system for mobile communications of double frequency comprises the global system for mobile communications of 900 megahertzes and 1800 megahertzes.Communication device 30 includes wireless signal transceiver module 300, code division multiple access inserts processing module 302, global system for mobile communications processing module 304, first code division multiple access access filter unit 306, the access of second code division multiple access filter unit 308, the first global system for mobile communications filter unit 310 and the second global system for mobile communications filter unit 312.
Wireless signal transceiver module 300 is used for receiving and transmitted radio signal, it can and divide multiplexer (Diplexer) to be formed by antenna, also can be formed, after being specified in by two antennas and one fen multiplexer of corresponding respectively to code division multiple access access processing module 302 and global system for mobile communications processing module 304.
Code division multiple access inserts the signal that processing module 302 is used for handling the code division multiple access incoming communication system of person-to-person communication service and honeycomb fashion, and it includes first duplexer 314, first code division multiple access and inserts receiver module 316, first code division multiple access and insert transmitter module 318, second duplexer 320, second code division multiple access and insert that receiver module 322, second code division multiple access insert transmitter module 324, code division multiple access inserts receiver 326 and code division multiple access inserts transmitter 328.First duplexer 314, first code division multiple access insert receiver module 316 and first code division multiple access inserts the signal that transmitter module 318 is used for receiving and launching the code division multiple access incoming communication system of person-to-person communication service, and second duplexer 320, second code division multiple access insert receiver module 322 and second code division multiple access access transmitter module 324 then is used for receiving and launching the signal of the code division multiple access incoming communication system of honeycomb fashion.Code division multiple access access receiver 326 is used for handling first code division multiple access access receiver module 316 and second code division multiple access inserts the signal that receiver module 322 is received, and code division multiple access inserts transmitter 328 and then is used for outputing signal to first code division multiple access access transmitter module 318 and second code division multiple access access transmitter module 324.
On the other hand, global system for mobile communications processing module 304 is used for handling the signal of the global system for mobile communications of 900 megahertzes and 1800 megahertzes, and it includes first transmit/receive switch 330, the first global system for mobile communications receiver module 332, the first global system for mobile communications transmitter module 334, second transmit/receive switch 336, the second global system for mobile communications receiver module 338, the second global system for mobile communications transmitter module 340, global system for mobile communications receiver 342 and global system for mobile communications transmitter 344.First transmit/receive switch 330, the first global system for mobile communications receiver module 332 and the first global system for mobile communications transmitter module 334 are used for receiving and launching the signal of the global system for mobile communications of 900 megahertzes, and second transmit/receive switch 336, the second global system for mobile communications receiver module 338 and the second global system for mobile communications transmitter module 340 then are used for receiving and launching the signal of the global system for mobile communications of 1800 megahertzes.Global system for mobile communications receiver 342 is used for handling the signal that the first global system for mobile communications receiver module 332 and the second global system for mobile communications receiver module 338 are received, and global system for mobile communications transmitter 344 then is used for outputing signal to the first global system for mobile communications transmitter module 334 and the second global system for mobile communications transmitter module 340.
As previously mentioned, there is partial frequency spectrum overlapping (880.2～894 megahertz) in the code division multiple access incoming communication system of the global system for mobile communications of 900 megahertzes and honeycomb fashion, and the code division multiple access incoming communication system of the global system for mobile communications of 1800 megahertzes and person-to-person communication service also has partial frequency spectrum to overlap (1850～1879.8 megahertz), makes the standby simultaneously of known mobile phone in the code division multiple access incoming communication system of the global system for mobile communications of double frequency and double frequency.In the present invention, first code division multiple access inserts filter unit 306 and is coupled to first code division multiple access access transmitter module 318, being used for filtering first code division multiple access inserts the part that is positioned at frequency band 1850 to 1879.8 megahertzes in the signal band that transmitter module 318 exported, i.e. part by frequency band 1879.8 to 1990 megahertzes; Second code division multiple access inserts filter unit 308 and is coupled to second code division multiple access access receiver module 322, being used for filtering second code division multiple access inserts and to be positioned at frequency band 880.2 to 894 megahertzes in the signal band that receiver module 322 received, and part i.e. part by frequency band 824 to 894 megahertzes; The first global system for mobile communications filter unit 310 is coupled to the first global system for mobile communications transmitter module 334, be used for being positioned in the signal band that the filtering first global system for mobile communications transmitter module 334 launched the part of frequency band 880.2 to 894 megahertzes, i.e. part by frequency band 894 to 959.8 megahertzes; The second global system for mobile communications filter unit 312 is coupled to the second global system for mobile communications receiver module 338, be used for being positioned in the signal band that the filtering second global system for mobile communications receiver module 338 received the part of frequency band 1850 to 1879.8 megahertzes, i.e. part by frequency band 1710.2 to 1850 megahertzes.
Therefore, can not disturb the reception running of the second global system for mobile communications receiver module 338 by the output signal of first code division multiple access access filter unit 306 and the second global system for mobile communications filter unit, 312, the first code division multiple accesss access transmitter module 318.In like manner, can not disturb second code division multiple access to insert the reception running of receiver module 322 by the output signal of the first global system for mobile communications filter unit 310 and second code division multiple access access filter unit, 308, the first global system for mobile communications transmitter modules 334.In this case, code division multiple access access receiver 326 and global system for mobile communications receiver 342 be processing signals correctly, avoid being subjected to the influence that signal spectrum overlaps, thereby can realize simultaneously the purpose of standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency.In simple terms, but the part that signal spectrum overlaps between the global system for mobile communications of communication device 30 filterings 900 megahertzes and the code division multiple access incoming communication system of honeycomb fashion, and the part that signal spectrum overlaps between the code division multiple access incoming communication system of the global system for mobile communications of filtering 1800 megahertzes and person-to-person communication service, make communication device 30 can not be subjected to the influence that signal spectrum overlaps, can correctly handle the signal of two systems simultaneously and standby under two systems.
In the present invention, first code division multiple access inserts filter unit 306 and is used for filtering first code division multiple access and inserts the part that frequency spectrum overlaps between the global system for mobile communications of signal spectrum that transmitter module 318 exported and 1800 megahertzes, disturbs the running of the first global system for mobile communications receiver module 338 when avoiding pair standby; And second code division multiple access inserts filter unit 308 and is used for filtering second code division multiple access and inserts the part that signal spectrum overlaps between the global system for mobile communications of signal spectrum that receiver module 322 received and 900 megahertzes, influences the running of code division multiple access access receiver 326 when avoiding two standby.In addition, in preferred embodiment of the present invention, the frequency range that first code division multiple access inserts filter unit 306 and second code division multiple access access filter unit 308 can change with the operator scheme of communication device 30, make when communication device 30 operates in dual standby mode, the effective part that overlaps of filtering frequency spectrum, and, then can strengthen signal quality when communication device 30 not operations during in dual standby mode.For instance, please refer to Fig. 4 and Fig. 5, Fig. 4 is the schematic diagram that first code division multiple access inserts filter unit 306, and Fig. 5 is the schematic diagram that second code division multiple access inserts filter unit 308.In Fig. 4, first code division multiple access inserts band pass filter 404 and the wide band band pass filter 406 that filter unit 306 comprises the first radio frequency switch 400, the second radio frequency switch 402, narrow-band.The first radio frequency switch 400 and the second radio frequency switch 402 are used for by selecting the band pass filter 404 or the wide band band pass filter 406 of narrow-band, to control the filtering frequency range that first code division multiple access inserts transmitter module 318 to first duplexers 314.When communication device 30 operated in dual standby mode, the signal of being exported with 404 pairs first code division multiple accesss accesses of the band pass filter transmitter module 318 of narrow-band carried out filtering, to avoid interference the reception of the second global system for mobile communications receiver module 338; On the contrary, when communication device 30 not operations during, then insert the signal that transmitter module 318 exported and carry out filtering, to strengthen signal quality with 406 pairs first code division multiple accesss of wide band band pass filter in dual standby mode.Wherein, in Fig. 4, the band pass filter 404 of narrow-band and wide band band pass filter 406 also can replace with low pass filter respectively.In Fig. 5, second code division multiple access inserts band pass filter 504 and the wide band band pass filter 506 that filter unit 308 comprises the first radio frequency switch 500, the second radio frequency switch 502, narrow-band.The first radio frequency switch 500 and the second radio frequency switch 502 are used for inserting receiver module 322 inserts receiver 326 to code division multiple access filtering frequency range by selecting the band pass filter 504 or the wide band band pass filter 506 of narrow-band to control second code division multiple access.When communication device 30 operated in dual standby mode, the signal of being exported with 504 pairs second code division multiple accesss accesses of the band pass filter receiver module 322 of narrow-band carried out filtering, to avoid interference the operation of code division multiple access access receiver 326; On the contrary, when communication device 30 not operations during, then insert the signal that receiver module 322 exported and carry out filtering, to strengthen signal quality with 506 pairs second code division multiple accesss of wide band band pass filter in dual standby mode.
In Fig. 4 and Fig. 5, wide band band pass filter 406 and wide band band pass filter 506 are mainly used in not operation under dual standby mode, and filtering monochromatic wave (Harmonic) or extraneous wave (Spurious) etc. are to strengthen quality of signals.Certainly, if do not consider the problem of monochromatic wave or extraneous wave, can also be directly mode by (Passing Through) remove wide band band pass filter 406 and wide band band pass filter 506, to reduce production costs.
In addition, because the global system for mobile communications of 900 megahertzes is to use identical communication specification with the global system for mobile communications of 1800 megahertzes, the frequency of operation difference is only arranged.Therefore, can be with global system for mobile communications processing module 304 appropriateness integrated, to save circuit area.Please refer to Fig. 6, Fig. 6 is the schematic diagram of global system for mobile communications processing module 60.Global system for mobile communications processing module 60 is used for handling the signal of the global system for mobile communications of 900 megahertzes and 1800 megahertzes, and it can replace global system for mobile communications processing module 304.Global system for mobile communications processing module 60 includes transmit/receive switch 600, band pass filter 602,604,606, power amplifier 608 and global system for mobile communications transceiver 610.Transmit/receive switch 600 is the combination of first transmit/receive switch 330 and second transmit/receive switch 336 among Fig. 3, is used for the connection of wireless signal switching transceiver module 300.Power amplifier 608 is used for realizing the function of the first global system for mobile communications transmitter module 334, and it can also comprise surface acoustic wave filter or other element.Band pass filter 604 is used for realizing the function of the second global system for mobile communications receiver module 338, and it can also comprise elements such as surface acoustic wave filter, low noise amplifier.The function of band pass filter 602 is as the second global system for mobile communications filter unit 312, is used for filtering to be positioned at the part of frequency band 1850 to 1879.8 megahertzes.In like manner, the function of band pass filter 606 is as the first global system for mobile communications filter unit 310, is used for filtering to be positioned at the part of frequency band 880.2 to 894 megahertzes.610 of global system for mobile communications transceivers are the combination of global system for mobile communications receiver 342 and global system for mobile communications transmitter 344, in order to realize the reception and the transfer function of global system for mobile communications.
As previously mentioned, wireless signal transceiver module 300 can by an antenna and one minute multiplexer (Diplexer) formed, or formed by two antennas and one fen multiplexer.Please refer to Fig. 7 and Fig. 8, the schematic diagram of Fig. 7 display radio signal transmitting and receiving module 70, the schematic diagram of Fig. 8 display radio signal transmitting and receiving module 80.Wireless signal transceiver module 70 and wireless signal transceiver module 80 all can be used to replace and realize the function of wireless signal transceiver module 300, and all be that the global system for mobile communications processing module 601 that inserts processing module 302 and Fig. 6 with the code division multiple access that is applicable to Fig. 3 is an example for the sake of clarity.In Fig. 7, wireless signal transceiver module 70 includes antenna 700 and divides multiplexer 702.Divide multiplexer 702 antenna 700 to be connected to first duplexer 314, second duplexer 320 or transmit/receive switch 600 according to operational scenario.Yet in this case, antenna 700 must be applicable to the code division multiple access incoming communication system of double frequency and the global system for mobile communications of double frequency simultaneously, certainly will increase the difficulty in the design.In comparison, in Fig. 8, wireless signal transceiver module 80 includes antenna 800,802 and divides multiplexer 804.Divide multiplexer 804 antenna 800 to be connected to first duplexer 314 or second duplexer 320 according to operational scenario.By wireless signal transceiver module 80, antenna 800,802 is applicable to the code division multiple access incoming communication system of double frequency and the global system for mobile communications of double frequency respectively, can therefore increase isolation, reduces the difficulty in the design.
In sum, because there are partial frequency spectrum overlapping (880.2～894 megahertz) in the global system for mobile communications of 900 megahertzes and the code division multiple access incoming communication system of honeycomb fashion, and also there is partial frequency spectrum overlapping (1850～1879.8 megahertz) in the code division multiple access incoming communication system of the global system for mobile communications of 1800 megahertzes and person-to-person communication service, make known technology that the mobile phone of standby simultaneously in the code division multiple access incoming communication system of the global system for mobile communications of 900 megahertzes and honeycomb fashion can't be provided, or the mobile phone of standby simultaneously in the code division multiple access incoming communication system that the global system for mobile communications and the person-to-person communication of 1800 megahertzes are served.In comparison, but the part that signal spectrum overlaps between the code division multiple access incoming communication system of the global system for mobile communications of the present invention's filtering 900 megahertzes and honeycomb fashion, and the part that signal spectrum overlaps between the code division multiple access incoming communication system of the global system for mobile communications of filtering 1800 megahertzes and person-to-person communication service, make communication device of the present invention can not be subjected to the influence that signal spectrum overlaps, can correctly handle simultaneously the signal of two systems, thus correctly standby under two systems.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to covering scope of the present invention.

Claims (17)

  1. One kind can be simultaneously the communication device of standby under the global system for mobile communications of the code division multiple access incoming communication system of double frequency and double frequency, the code division multiple access incoming communication system of this double frequency comprises the code division multiple access incoming communication system of person-to-person communication service and the code division multiple access incoming communication system of honeycomb fashion, the global system for mobile communications of this double frequency comprises the global system for mobile communications of 900 megahertzes and the global system for mobile communications of 1800 megahertzes, and this communication device includes:
    The wireless signal transceiver module is used for receiving and transmitted radio signal;
    Code division multiple access inserts processing module, is used for handling the signal of the code division multiple access incoming communication system of this double frequency, includes:
    First duplexer is coupled to this wireless signal transceiver module;
    Second duplexer is coupled to this wireless signal transceiver module;
    First code division multiple access inserts receiver module, is coupled to this first duplexer, is used for receiving by this first duplexer the signal of the code division multiple access incoming communication system of person-to-person communication service;
    First code division multiple access inserts transmitter module, is coupled to this first duplexer, is used for outputing signal to the code division multiple access incoming communication system that this person-to-person communication is served by this first duplexer;
    Second code division multiple access inserts receiver module, is coupled to this second duplexer, is used for receiving by this second duplexer the signal of the code division multiple access incoming communication system of honeycomb fashion; And
    Second code division multiple access inserts transmitter module, is coupled to this second duplexer, is used for outputing signal to by this second duplexer the code division multiple access incoming communication system of this honeycomb fashion;
    The global system for mobile communications processing module is used for handling the signal of the global system for mobile communications of this double frequency, includes:
    First transmit/receive switch is coupled to this wireless signal transceiver module;
    Second transmit/receive switch is coupled to this wireless signal transceiver module;
    The first global system for mobile communications receiver module is coupled to this first transmit/receive switch, is used for receiving the signal of the global system for mobile communications of 900 megahertzes by this first transmit/receive switch;
    The first global system for mobile communications transmitter module is coupled to this first transmit/receive switch, is used for outputing signal to the global system for mobile communications of this 900 megahertz by this first transmit/receive switch;
    The second global system for mobile communications receiver module is coupled to this second transmit/receive switch, is used for receiving the signal of the global system for mobile communications of 1800 megahertzes by this second transmit/receive switch; And
    The second global system for mobile communications transmitter module is coupled to this second transmit/receive switch, is used for outputing signal to the global system for mobile communications of this 1800 megahertz by this second transmit/receive switch;
    First code division multiple access inserts filter unit, be coupled to this first code division multiple access and insert transmitter module, being used for this first code division multiple access of filtering inserts in the signal band that transmitter module exports, and is positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this person-to-person communication service and this 1800 megahertz;
    Second code division multiple access inserts filter unit, be coupled to this second code division multiple access and insert receiver module, being used for this second code division multiple access of filtering inserts in signal band that receiver module received, and is positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this honeycomb fashion and this 900 megahertz;
    The first global system for mobile communications filter unit, be coupled to this first global system for mobile communications transmitter module, be used in the signal band that this first global system for mobile communications transmitter module of filtering launched, be positioned at the part of overlapping frequency band between the global system for mobile communications of the code division multiple access incoming communication system of this honeycomb fashion and this 900 megahertz; And
    The second global system for mobile communications filter unit, be coupled to this second global system for mobile communications receiver module, be used in the signal band that this second global system for mobile communications receiver module of filtering received, be positioned at the part of band overlap between the global system for mobile communications of the code division multiple access incoming communication system of this person-to-person communication service and this 1800 megahertz.
  2. 2. communication device according to claim 1, wherein this wireless signal transceiver module includes:
    First antenna is coupled to this first duplexer and this second duplexer; And
    Second antenna is coupled to this first transmit/receive switch and this second transmit/receive switch.
  3. 3. communication device according to claim 1, wherein this wireless signal transceiver module includes:
    Antenna; And
    Divide multiplexer, be coupled to this first duplexer, this second duplexer, this first transmit/receive switch and this second transmit/receive switch.
  4. 4. communication device according to claim 1, wherein this first transmit/receive switch and this second transmit/receive switch are to be integrated in the same transmit/receive switch.
  5. 5. communication device according to claim 1, wherein this first code division multiple access access filter unit is a low pass filter.
  6. 6. communication device according to claim 1, wherein this first code division multiple access access filter unit is the band pass filter of narrow-band.
  7. 7. communication device according to claim 1, wherein this second code division multiple access access filter unit is the band pass filter of narrow-band.
  8. 8. communication device according to claim 1, wherein this first global system for mobile communications filter unit is a low pass filter.
  9. 9. communication device according to claim 1, wherein this first global system for mobile communications filter unit is a band pass filter.
  10. 10. communication device according to claim 1, wherein this second global system for mobile communications filter unit is a band pass filter.
  11. 11. communication device according to claim 1, it also comprises:
    First signal processing module is located at this code division multiple access and is inserted in the processing module, is used for handling the signal that this code division multiple access inserts processing module; And
    The secondary signal processing module is located in this global system for mobile communications processing module, is used for handling the signal of this global system for mobile communications processing module.
  12. 12. communication device according to claim 11, wherein this first signal processing module includes:
    Code division multiple access inserts receiver, is used for handling this first code division multiple access and inserts receiver module and this second code division multiple access access signal that receiver module received; And
    Code division multiple access inserts transmitter, is used for outputing signal to this first code division multiple access and inserts transmitter module and this second code division multiple access access transmitter module.
  13. 13. communication device according to claim 11, wherein this secondary signal processing module includes:
    The global system for mobile communications receiver is used for handling the signal that this first global system for mobile communications receiver module and this second global system for mobile communications receiver module are received; And
    The global system for mobile communications transmitter is used for outputing signal to this first global system for mobile communications transmitter module and this second global system for mobile communications transmitter module.
  14. 14. communication device according to claim 1, wherein this first code division multiple access access filter unit includes:
    The first radio frequency switch is coupled to this first duplexer;
    The second radio frequency switch is coupled to this first code division multiple access and inserts transmitter module;
    The band pass filter of narrow-band is coupled between this first radio frequency switch and this second radio frequency switch; And
    Wide band band pass filter is coupled between this first radio frequency switch and this second radio frequency switch;
    Wherein, this first radio frequency switch and this second radio frequency switch are controlled this first code division multiple access and are inserted transmitter module passes through this narrow-band to the signal of this first duplexer band pass filter or this wide band band pass filter.
  15. 15. communication device according to claim 14, wherein this wide band band pass filter can be infinitely great by frequency range.
  16. 16. communication device according to claim 1, wherein this second code division multiple access access filter unit includes:
    The first radio frequency switch is coupled to this second code division multiple access and inserts receiver module;
    The second radio frequency switch is coupled to the output that this second code division multiple access inserts filter unit;
    The band pass filter of narrow-band is coupled between this first radio frequency switch and this second radio frequency switch; And
    Wide band band pass filter is coupled between this first radio frequency switch and this second radio frequency switch;
    Wherein, this first radio frequency switch and this second radio frequency switch are controlled this second code division multiple access and are inserted receiver module to band pass filter or this wide band band pass filter of the signal between the output of this second code division multiple access access filter unit by this narrow-band.
  17. 17. communication device according to claim 16, wherein this wide band band pass filter can be infinitely great by frequency range.
CN2006101700980A 2006-12-18 2006-12-18 Stand-by communication device simultaneous for code division multiple access and global mobile communication system Active CN101207874B (en)

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CN105141335A (en) 2009-12-23 2015-12-09 华为技术有限公司 Antenna oscillator multiplexing method and device and antenna assembly
CN102404881A (en) * 2011-11-04 2012-04-04 中兴通讯股份有限公司 Dual-mode radio frequency transceiver, filtering device and dual-mode terminal

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Publication number Priority date Publication date Assignee Title
CN1529434A (en) * 2003-09-29 2004-09-15 中兴通讯股份有限公司 Broadband CDMA System-to-personal portable telephone system changing-over judging method
CN1756419A (en) * 2004-09-29 2006-04-05 华为技术有限公司 CDMA system terminal switching method

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1529434A (en) * 2003-09-29 2004-09-15 中兴通讯股份有限公司 Broadband CDMA System-to-personal portable telephone system changing-over judging method
CN1756419A (en) * 2004-09-29 2006-04-05 华为技术有限公司 CDMA system terminal switching method

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