CN103236868A - Signal transceiving module and mobile communication terminal - Google Patents
Signal transceiving module and mobile communication terminal Download PDFInfo
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- CN103236868A CN103236868A CN2013101063732A CN201310106373A CN103236868A CN 103236868 A CN103236868 A CN 103236868A CN 2013101063732 A CN2013101063732 A CN 2013101063732A CN 201310106373 A CN201310106373 A CN 201310106373A CN 103236868 A CN103236868 A CN 103236868A
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Abstract
The invention discloses a signal transceiving module which comprises an antenna, a WWAN (wireless wide area network) transceiver, a Bluetooth chip, a WIFI (wireless fidelity) chip, a first signal channel and a second signal channel. The WWAN transceiver is used for emitting WWAN emitting signals in a first frequency range and receiving WWAN receiving signals in a second frequency range, the Bluetooth chip is used for emitting and receiving Bluetooth signals in a third frequency range, the WIFI chip is used for emitting and receiving WIFI signals in the third frequency range, the first signal channel is connected with the WWAN transceiver and used for coupling the same to the antenna, the second signal channel is connected with the Bluetooth chip and the WIFI chip respectively and used for coupling the same to the antenna, and the first channel gates the first frequency range and the second frequency range and the second frequency range gates the third frequency range to enable the WWAN transceiver, the Bluetooth chip and the WIFI chip to share the antenna. The invention further discloses a mobile communication terminal. The signal transceiving module and the mobile communication terminal can enable the WWAN transceiver, the Bluetooth chip and the WIFI chip to share the antenna and saves occupied space of the antenna.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of signal transmitting and receiving module, also relate to a kind of mobile communication terminal.
Background technology
At present, moving communicating field has the multiple technologies standard, and these technical standards comprise WWAN(Wireless Wide Area Network, wireless wide area network), WIFI(Wireless Fidelity, get online without being tethered to a cable), BT(Bluetooth, bluetooth) etc.WWAN comprises GSM(Global System For Mobile Communications again, global system for mobile communications), CDMA(Code Division Multiple Access, code division multiple access), UMTS(Universal Mobile Telecommunications System, universal mobile telecommunications system) etc.
The mobile communication terminal of prior art can merge these technical standards when design.But the communication separately of WWAN, WIFI, bluetooth all needs to rely on antenna, and needs to keep separate between each antenna, avoids signal cross-talk.Just because of this, mobile communication terminal need be reserved enough antenna spaces, and this has increased the overall dimensions of mobile communication terminal undoubtedly.
Summary of the invention
Main purpose of the present invention provides a kind of signal transmitting and receiving module and mobile communication terminal, to solve the technical problem that WWAN, WIFI and bluetooth in the prior art can not common antenna.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of signal transmitting and receiving module is provided, and it comprises: WWAN transceiver, the WWAN that is used for emission first frequency range transmit and the WWAN that receives second frequency range receives signal; Bluetooth chip is for the Bluetooth signal that transmits and receives the 3rd frequency range; The WIFI chip is for the WIFI signal that transmits and receives the 3rd frequency range; First signal path connects the WWAN transceiver, is used for the WWAN transceiver is coupled to antenna; The secondary signal path connects Bluetooth chip and WIFI chip respectively, is used for Bluetooth chip and WIFI chip are coupled to antenna; Wherein, the first signal path gating, first frequency range and second frequency range, secondary signal path gating the 3rd frequency range is so that WWAN transceiver, Bluetooth chip and WIFI chip common antenna.
Wherein, first signal path comprises emission filter and receiving filter, described first frequency range of emission filter gating, receiving filter gating second frequency range, emission filter all is connected the WWAN transceiver with receiving filter, is used for the WWAN transceiver is coupled to antenna.
Wherein, also have access to the WWAN power amplifier between WWAN transceiver and the emission filter, amplify for WWAN is transmitted.
Wherein, the secondary signal path comprises bluetooth filter and WIFI filter, equal gating the 3rd frequency range of bluetooth filter and WIFI filter, the bluetooth filter connects Bluetooth chip, be used for Bluetooth chip is coupled to antenna, the WIFI filter connects the WIFI chip, is used for the WIFI chip is coupled to antenna.
Wherein, send first to the WIFI chip during Bluetooth chip work and enable control signal, first enables control signal makes the break-off of WIFI chip, perhaps send second to Bluetooth chip during the WIFI chip operation and enable control signal, second enables control signal makes the Bluetooth chip break-off, so that WIFI chip and Bluetooth chip carry out work to select a mode.
Wherein, the signal transmitting and receiving module also comprises duplexer, the output of duplexer connects antenna, two inputs of duplexer connect first signal path and secondary signal path respectively, the control end of duplexer receives the path control signal, and the connected sum that is used for control output end and two inputs turn-offs.
Wherein, the signal transmitting and receiving module also comprises baseband processing chip, and the control end of duplexer connects baseband processing chip, and baseband processing chip is for generation of the path control signal.
Wherein, the WWAN transceiver connects baseband processing chip, baseband processing chip also be used for to send or receiving baseband signal, and the WWAN transceiver also is used for receiving and modulating baseband signal obtains that WWAN transmits or demodulation WWAN receives signal and obtains baseband signal and send baseband signal.
Wherein, Bluetooth chip all is connected baseband processing chip with the WIFI chip, and baseband processing chip also is used for Code And Decode Bluetooth signal and WIFI signal.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of mobile communication terminal is provided, and mobile communication terminal comprises above-mentioned any signal transmitting and receiving module.
Signal transmitting and receiving module of the present invention and mobile communication terminal are coupled to antenna by first signal path and secondary signal path with WWAN transceiver, Bluetooth chip and WIFI chip, and make first signal path and the different frequency range of secondary signal path gating, thereby realize WWAN transceiver, Bluetooth chip and WIFI chip common antenna, save taking up room of antenna, prevent signal cross-talk.
Description of drawings
Fig. 1 is the structural representation of the application's signal transmitting and receiving module first embodiment;
Fig. 2 is the structural representation of the application's signal transmitting and receiving module second embodiment;
Fig. 3 is the structural representation of the application's signal transmitting and receiving module the 3rd embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
Consulting Fig. 1, is the structural representation of the application's signal transmitting and receiving module first embodiment.
The signal transmitting and receiving module comprises WWAN transceiver 101, Bluetooth chip 102, WIFI chip 103, first signal path 104, secondary signal path 105 and antenna 106.
The WWAN reception signal that WWAN transceiver 101 transmits for the WWAN that launches first frequency range and receives second frequency range.First frequency range and second frequency range are inequality, and in the present embodiment, first frequency range is 1710～2170MHz, and second frequency range is 824～960MHz.
Bluetooth chip 102 is used for transmitting and receiving the Bluetooth signal of the 3rd frequency range.
Because WWAN transceiver 101, Bluetooth chip 102 and WIFI chip 103 all are coupled to antenna 106, and the frequency range that WWAN transceiver 101, Bluetooth chip 102 and WIFI chip 103 are supported respectively is not quite similar, if the signal that transmits and receives at WWAN transceiver 101, Bluetooth chip 102 and WIFI chip 103 filters respectively, signal cross-talk will occur, thereby have a strong impact on the communication quality of mobile communication terminal.After 105 pairs of frequency ranges of first signal path 104 and secondary signal path are selected, can prevent the signal cross-talk phenomenon.
Transmit and the WWAN of second frequency range receives for the signal for the WWAN of first frequency range, secondary signal path 105 can filter out that WWAN transmits and WWAN receives signal, thereby Bluetooth chip 102 and WIFI chip 103 can operate as normal.
For the Bluetooth signal and WIFI signal of triband, first signal path 104 can filter out Bluetooth signal and WIFI signal, thereby WWAN transceiver 101 can operate as normal.
The signal transmitting and receiving module of present embodiment is coupled to antenna 106 by first signal path 104 with WWAN transceiver 101, by secondary signal path 105 Bluetooth chip 102 and WIFI chip 103 are coupled to antenna 106, first signal path 104 gatings, first frequency range and second frequency range, secondary signal path 105 gatings the 3rd frequency range, thereby can realize WWAN transceiver 101, Bluetooth chip 102 and WIFI chip 103 common antenna 106, and avoid occurring each other signal cross-talk.Because one of 106 need of antenna can have been saved taking up room of antenna 106 to a great extent.
Consulting Fig. 2, is the structural representation of the application's signal transmitting and receiving module second embodiment.
The signal transmitting and receiving module comprises WWAN transceiver 201, Bluetooth chip 202, WIFI chip 203, first signal path 204, secondary signal path 205 and antenna 206.
The concrete course of work of WWAN transceiver 201, Bluetooth chip 202 and WIFI chip 203 please refer to the associated description of first embodiment, belongs to the scope that those skilled in the art understand easily, repeats no more herein.
In the present embodiment, first signal path 204 comprises emission filter 2041 and receiving filter 2042.Emission filter 2041 gatings first frequency range, receiving filter 2042 gatings second frequency range.That is to say, 2041 of emission filters allow WWAN transmit by, and 2042 of receiving filters allow WWAN to receive signal to pass through.In the present embodiment, emission filter 2041 and receiving filter 2042 are band pass filter.
Further, the secondary signal path 205 of present embodiment comprises bluetooth filter 2051 and WIFI filter 2052.Bluetooth filter 2051 and WIFI filter 2052 equal gating the 3rd frequency ranges.That is to say that 2051 in bluetooth filter allows Bluetooth signal or WIFI signal to pass through, WIFI filter 2052 also only allows Bluetooth signal or WIFI signal to pass through.In the present embodiment, bluetooth filter 2051 and WIFI filter 2052 are band pass filter.
Bluetooth filter 2051 connects Bluetooth chip 202, is used for Bluetooth chip 202 is coupled to antenna 206, and WIFI filter 2052 connects WIFI chip 203, is used for WIFI chip 203 is coupled to antenna 206.In the present embodiment, send first to WIFI chip 203 during Bluetooth chip 202 work and enable control signal, first enables control signal makes 203 break-ofves of WIFI chip, send second to Bluetooth chip 202 when perhaps WIFI chip 203 is worked and enable control signal, second enables control signal makes Bluetooth chip 202 break-ofves, so that WIFI chip 203 and Bluetooth chip 202 carry out work to select a mode.It should be noted that, Bluetooth chip 202 and 203 work of WIFI chip refer to emission or receive signal, be to be in data transmission state, be not to refer to state of activation, that is to say, during Bluetooth chip 202 work, WIFI chip 203 suspends emission or receives the WIFI signal, but still can be in state of activation.
The signal transmitting and receiving module of present embodiment is by emission filter 2041 and receiving filter 2042, can reduce the signal interference that WWAN transceiver 201 is subjected to, and Bluetooth chip 202 and WIFI chip 203 can not transmit and receive signal simultaneously, can improve the reliability of Bluetooth chip 202 and 203 work of WIFI chip again.
Consulting Fig. 3, is the structural representation of the application's signal transmitting and receiving module the 3rd embodiment.
The signal transmitting and receiving module comprises WWAN transceiver 301, Bluetooth chip 302, WIFI chip 303, first signal path 304, secondary signal path 305, antenna 306, WWAN power amplifier 307, duplexer 308 and baseband processing chip 309.First signal path 304 comprises emission filter 3041 and receiving filter 3042, and secondary signal path 305 comprises bluetooth filter 3051 and WIFI filter 3052.WWAN transceiver 301, Bluetooth chip 302, WIFI chip 303, first signal path 304 and secondary signal path 305 please refer to the associated description of second embodiment, belong to the scope that those skilled in the art understand easily, repeat no more herein.
WWAN power amplifier 307 inserts between WWAN transceiver 301 and emission filter 3041, amplifies for WWAN is transmitted.
The output OUT of duplexer 308 connects antenna 306, two input IN1, IN2 of duplexer 308 connect first signal path 304 and secondary signal path 305 respectively, the control end SN of duplexer 308 receives the path control signal, and the connected sum that is used for control output end OUT and two input IN1, IN2 turn-offs.That is to say, the path control signal can control output end OUT only with input IN1, IN2 in one be communicated with, with another shutoff, perhaps control output end OUT and two input IN1, IN2 turn-off, also or control output end OUT be communicated with two input IN1, IN2.
The control end OUT of duplexer 308 connects baseband processing chip 309, and baseband processing chip 309 is for generation of the path control signal.Baseband processing chip 309 main response users' selection, for example the user selects to activate bluetooth or WIFI, and baseband processing chip 309 just sends the control signal that enables that is communicated with output OUT and input IN2 so.
Further, baseband processing chip 309 also is used for sending or receiving baseband signal.WWAN transceiver 301 also be used for to receive and modulating baseband signal obtains that WWAN transmits or demodulation WWAN receives signal and obtains baseband signal and send baseband signal.
Bluetooth chip 302 all is connected baseband processing chip 309 with WIFI chip 303, and baseband processing chip 309 also is used for Code And Decode Bluetooth signal and WIFI signal.
To introduce the course of work of the signal transmitting and receiving module of present embodiment below in detail.
If the user selects to activate WWAN, close bluetooth and WIFI, baseband processing chip 309 sends control output end OUT and is communicated with input IN1, with the control signal that enables of input IN2 shutoff.Because the existence of emission filter 3041 and receiving filter 3042, with Bluetooth signal, WIFI signal and other noise signals that filtering antenna 306 is received, WWAN transceiver 301 is able to operate as normal;
If the user selects to activate WWAN and bluetooth, close WIFI, baseband processing chip 309 sends the control signal that enables that control output end OUT is communicated with input IN1, IN2.Emission filter 3041 and receiving filter 3042 filtering Bluetooth signals, WIFI signal and other noise signals, gating WWAN transmits and WWAN receives signal, and WWAN transceiver 301 is able to operate as normal.Bluetooth filter 3051 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal, and Bluetooth chip 302 is independent of each other with WWAN transceiver 301, is able to operate as normal;
If the user selects to activate WWAN and WIFI, close bluetooth, baseband processing chip 309 sends the control signal that enables that control output end OUT is communicated with input IN1, IN2.Emission filter 3041 and receiving filter 3042 filtering Bluetooth signals, WIFI signal and other noise signals, gating WWAN transmits and WWAN receives signal, and WWAN transceiver 301 is able to operate as normal.WIFI filter 3052 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal, and WIFI chip 303 is independent of each other with WWAN transceiver 301, is able to operate as normal;
If the user selects to activate WWAN, bluetooth and WIFI, baseband processing chip 309 sends the control signal that enables that control output end OUT is communicated with input IN1, IN2.Emission filter 3041 and receiving filter 3042 filtering Bluetooth signals, WIFI signal and other noise signals, gating WWAN transmits and WWAN receives signal, and WWAN transceiver 301 is able to operate as normal.Bluetooth filter 3051 and WIFI filter 3052 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal.And Bluetooth chip 302 and WIFI chip 303 carry out work to select a mode, thereby Bluetooth chip 302, WIFI chip 303 and WWAN transceiver 301 are independent of each other, and are able to operate as normal;
If the user selects to activate bluetooth, closes WWAN and WIFI, baseband processing chip 309 sends control output end OUT and is communicated with input IN2, with the control signal that enables of input IN1 disconnection.Bluetooth filter 3051 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal, and Bluetooth chip 302 is able to operate as normal;
If the user selects to activate bluetooth and WIFI, closes WWAN, baseband processing chip 309 sends control output end OUT and is communicated with input IN2, with the control signal that enables of input IN1 disconnection.Bluetooth filter 3051 and WIFI filter 3052 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal.And Bluetooth chip 302 and WIFI chip 303 carry out work to select a mode, thereby Bluetooth chip 302, WIFI chip 303 and WWAN transceiver 301 are independent of each other, and are able to operate as normal;
If the user selects to activate WIFI, closes WWAN and bluetooth, baseband processing chip 309 sends control output end OUT and is communicated with input IN2, with the control signal that enables of input IN1 disconnection.WIFI filter 3052 filtering WWAN transmit, WWAN receives signal and other noise signals, gating Bluetooth signal and WIFI signal.WIFI chip 303 is able to operate as normal;
If the user selects to close WWAN, WIFI and bluetooth, baseband processing chip 309 sends the control signal that enables of control output end OUT and input IN1, IN2 disconnection.The signal transmitting and receiving module will not worked.
The present invention also provides a kind of mobile communication terminal, and it comprises above-mentioned any signal transmitting and receiving module.Other parts of mobile communication terminal please refer to prior art, repeat no more herein.The mobile communication terminal of present embodiment can make electronic equipments such as mobile phone, panel computer.
By the way, signal transmitting and receiving module of the present invention and mobile communication terminal are coupled to antenna by first signal path and secondary signal path with WWAN transceiver, Bluetooth chip and WIFI chip, and make first signal path and the different frequency range of secondary signal path gating, thereby realize WWAN transceiver, Bluetooth chip and WIFI chip common antenna, save taking up room of antenna, prevent signal cross-talk.And Bluetooth chip and WIFI chip are worked to select a mode, have strengthened the reliability of WWAN transceiver, Bluetooth chip and WIFI chip operation.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a signal transmitting and receiving module is characterized in that, described signal transmitting and receiving module comprises:
WWAN transceiver, the WWAN that is used for emission first frequency range transmit and the WWAN that receives second frequency range receives signal;
Bluetooth chip is for the Bluetooth signal that transmits and receives the 3rd frequency range;
The WIFI chip is for the WIFI signal that transmits and receives described the 3rd frequency range;
First signal path connects described WWAN transceiver, is used for described WWAN transceiver is coupled to antenna;
The secondary signal path connects described Bluetooth chip and described WIFI chip respectively, is used for described Bluetooth chip and described WIFI chip are coupled to described antenna;
Wherein, described first frequency range of the described first signal path gating and described second frequency range, described the 3rd frequency range of described secondary signal path gating is so that described WWAN transceiver, described Bluetooth chip and described WIFI chip share described antenna.
2. signal transmitting and receiving module according to claim 1, it is characterized in that, described first signal path comprises emission filter and receiving filter, described first frequency range of described emission filter gating, described second frequency range of described receiving filter gating, described emission filter all is connected described WWAN transceiver with described receiving filter, is used for described WWAN transceiver is coupled to described antenna.
3. signal transmitting and receiving module according to claim 2 is characterized in that, also has access to the WWAN power amplifier between described WWAN transceiver and the described emission filter, amplifies for described WWAN is transmitted.
4. signal transmitting and receiving module according to claim 1, it is characterized in that, described secondary signal path comprises bluetooth filter and WIFI filter, described bluetooth filter and described the 3rd frequency range of the equal gating of described WIFI filter, described bluetooth filter connects described Bluetooth chip, be used for described Bluetooth chip is coupled to described antenna, described WIFI filter connects described WIFI chip, is used for described WIFI chip is coupled to described antenna.
5. signal transmitting and receiving module according to claim 1, it is characterized in that, send first to described WIFI chip when described Bluetooth chip is worked and enable control signal, described first enables control signal makes the break-off of described WIFI chip, perhaps send second to described Bluetooth chip during described WIFI chip operation and enable control signal, described second enables control signal makes described Bluetooth chip break-off, so that described WIFI chip and described Bluetooth chip carry out work to select a mode.
6. signal transmitting and receiving module according to claim 1, it is characterized in that, described signal transmitting and receiving module also comprises duplexer, the output of described duplexer connects described antenna, two inputs of described duplexer connect described first signal path and described secondary signal path respectively, the control end of described duplexer receives the path control signal, and the connected sum that is used for the described output of control and described two inputs turn-offs.
7. signal transmitting and receiving module according to claim 6, it is characterized in that, described signal transmitting and receiving module also comprises baseband processing chip, and the control end of described duplexer connects described baseband processing chip, and described baseband processing chip is for generation of described path control signal.
8. signal transmitting and receiving module according to claim 7, it is characterized in that, described WWAN transceiver connects described baseband processing chip, described baseband processing chip also be used for to send or receiving baseband signal, and described WWAN transceiver is used for also receiving and modulating that described baseband signal obtains that described WWAN transmits or the described WWAN of demodulation receives signal and obtains described baseband signal and send described baseband signal.
9. signal transmitting and receiving module according to claim 7 is characterized in that, described Bluetooth chip all is connected described baseband processing chip with described WIFI chip, and described baseband processing chip also is used for the described Bluetooth signal of Code And Decode and described WIFI signal.
10. a mobile communication terminal is characterized in that, described mobile communication terminal comprises each described signal transmitting and receiving module according to claim 1-9.
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