CN109714076B - Wireless fidelity communication circuit and electronic equipment - Google Patents
Wireless fidelity communication circuit and electronic equipment Download PDFInfo
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- CN109714076B CN109714076B CN201910133615.4A CN201910133615A CN109714076B CN 109714076 B CN109714076 B CN 109714076B CN 201910133615 A CN201910133615 A CN 201910133615A CN 109714076 B CN109714076 B CN 109714076B
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Abstract
The embodiment of the application provides a wireless fidelity communication circuit and electronic equipment, and the wireless fidelity communication circuit includes: the transceiver comprises a first transmitting end and a first receiving end; a first path, including a first filter, where one end of the first filter is connected to a first transmitting end of the transceiver, and the other end of the first filter is connected to a first interface of a first switch, and the first path is used to transmit a wireless fidelity signal of a first frequency band; and the second path comprises a second filter, one end of the second filter is connected with the first receiving end of the transceiver, the other end of the second filter is connected with the second interface of the first switch, and the second path is used for receiving the wireless fidelity signal of the first frequency band. The embodiment of the application can improve the transmission quality of the wireless fidelity communication signal.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a wireless fidelity communication circuit and an electronic device.
Background
With the popularization of mobile terminal products, consumers have higher and higher requirements on internet speed. However, the existing wireless fidelity signal has an interference problem in the transmission process, which affects the transmission quality of the wireless fidelity signal and causes poor user experience.
Disclosure of Invention
The embodiment of the application provides a wireless fidelity communication circuit and an electronic device, which can improve the transmission quality of wireless fidelity communication signals.
The embodiment of the application provides a wireless fidelity communication circuit, includes:
the transceiver comprises a first transmitting end and a first receiving end;
a first path, including a first filter, where one end of the first filter is connected to a first transmitting end of the transceiver, and the other end of the first filter is connected to a first interface of a first switch, and the first path is used to transmit a wireless fidelity signal of a first frequency band;
and the second path comprises a second filter, one end of the second filter is connected with the first receiving end of the transceiver, the other end of the second filter is connected with the second interface of the first switch, and the second path is used for receiving the wireless fidelity signal of the first frequency band.
The embodiment of the application also provides an electronic device, which comprises the wireless fidelity communication circuit.
In the embodiment of the application, the first path and the second path are both provided with the filter, and the filters are both positioned between the transceiver and the first switch, so that stray signals leaked out of the transceiver can be filtered, and the communication quality of the wireless fidelity signal can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a first structure of a wireless fidelity communication circuit in an electronic device according to the present application.
Fig. 3 is a schematic diagram of a second structure of a wireless fidelity communication circuit in an electronic device according to the present application.
Fig. 4 is another schematic diagram of the wireless fidelity communication circuit of fig. 3.
Fig. 5 is a schematic diagram of a third structure of a wireless fidelity communication circuit in an electronic device according to the present application.
Fig. 6 is another schematic diagram of the wireless fidelity communication circuit of fig. 5.
Detailed Description
The embodiment of the application provides a wireless communication fidelity circuit and electronic equipment, and the wireless communication fidelity circuit can be electrically connected with an antenna and installed in the electronic equipment to realize transmission of wireless fidelity signals. Among other things, the electronic devices may be tablets, cell phones, media players, or other handheld or portable devices, smaller devices (such as wrist-watch devices, wall-mounted devices, earphone or headphone devices, devices embedded in glasses or other devices worn on the user's head, or other wearable or miniature devices), televisions, and so forth.
As shown in fig. 1, fig. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application, and the electronic device 10 may include a housing 11, a display 12, a processor 13 of one or more processing cores, a memory 14 of one or more computer-readable storage media, an antenna assembly 15, a wireless fidelity communication circuit 16, and other components. A display 12 may be mounted on the housing 11 and may be used to display information input by or provided to a user as well as various graphical user interfaces of the electronic device. The processor 13 may be installed in the housing 11, may connect various parts of the entire electronic device using various interfaces and wires, and may perform various functions of the electronic device and process data by executing or calling a computer program stored in the memory 14 and calling data stored in the memory 14. The memory 14 may be electrically connected to the processor 13 and may be used to store computer programs and data. The antenna assembly 15 may be electrically connected to the processor 13 and may be configured to transmit or receive electromagnetic waves. The wireless fidelity communication circuit 16 may be electrically connected to the processor 13 and may be used for transmission of wireless fidelity signals. It should be noted that the electronic device 10 is not limited thereto, and the electronic device 10 may further include a sensor, a battery, and the like.
As shown in fig. 2, fig. 2 is a first structural diagram of the wireless fidelity communication circuit shown in fig. 1. The wireless fidelity communication circuit 10 may include a transceiver 110, a first path 100, a second path 200, and a first switch 120. The transceiver 110 may include a first transmitting end 110a and a first receiving end 110 b. The first path 100 may include a first filter 101, the first filter 101 may include an input terminal 101a and an output terminal 101b, the input terminal 101a of the first filter is connected to the first transmitting terminal 110a, and the output terminal 101b of the first filter is connected to the first interface 120a of the first switch 120, and the first path 100 is configured to transmit a first frequency band of wireless fidelity signals, such as 2.4G wireless fidelity signals. The first filter 101 may be a band pass filter, and may be used to filter out spurious signals leaked from the transceiver 110. Furthermore, by directly providing the first filter 101 on the first path 100, the influence of the insertion loss of the first filter 101 on the wifi signal can be reduced, thereby improving the quality of the wifi signal transmitted by the first path 100. The second path 200 may include a second filter 201, the second filter 201 may include an input terminal 201a and an output terminal 202b, the output terminal 201b of the second filter 201 is connected to the first receiving terminal 110b, the input terminal 201a of the second filter 201 is connected to the second interface 120b of the first switch 120, and the second path 200 is configured to receive a wifi signal in a first frequency band, such as a 2.4G wifi signal. The second filter may be a band-pass filter, and may be configured to filter out non-linear products on the second path 200, and the second filter 201 disposed on the second path 200 may also prevent a power amplifier inside the transceiver 110 from being saturated, thereby improving the quality of the wireless fidelity signal received by the second path 200.
The wireless fidelity communication circuit of the embodiment of the application can be connected with the antenna 151 in the antenna assembly 15 in the electronic device, so that the transmission of wireless fidelity signals is realized. First switch 120, such as a wireless fidelity communication circuit, may include a common port 120c, which common port 120c is connected to antenna 151 to electrically connect wireless fidelity communication circuit 16 and antenna assembly 15. The first switch 120 may be a transmit-receive switch, which switches between a receiving state and a transmitting state when the wifi circuit transmits a signal. In a transmitting state, the first port 120a of the first switch 120 is conducted with the common port 120c, so that the antenna 151 is connected with a signal transmitter in the transceiver through a first path, and transmission of the wireless fidelity signal of the first frequency band is realized; in the receiving state, the second port 120b of the first switch 120 is connected to the common port 120c, so that the antenna 151 is connected to the signal receiver in the transceiver through the second path, and the receiving of the wireless fidelity signal in the first frequency band is realized.
In some embodiments, please refer to fig. 3, in which fig. 3 is a second structural diagram of a wireless fidelity communication circuit. The wireless fidelity communication circuit in this embodiment can realize the transmission of wireless fidelity signals of two frequency bands, such as two frequency bands of 2.4G and 5G. The transceiver in the above embodiment may further include a second transmitting end 110c and a second receiving end 110 d. The wireless fidelity communication circuit may further include a third path 300, a fourth path 400, and a second switch 121. The third path 300 may comprise a third filter 301, the third filter 301 may comprise an input 301a and an output 301b, the input 301a of the third filter is connected to the second transmitting end 110c of the transceiver, the output 301b of the third filter is connected to the first port 121a of the second switch, and the third path 300 is configured to transmit a wireless fidelity signal of the second frequency band, such as a 5G wireless fidelity signal. The fourth path 400 may include a fourth filter 401, the fourth filter 401 may include an input end 401a and an output end 401b, the output end 401b of the fourth filter is connected to the second receiving end 110d of the transceiver, the input end 401a of the fourth filter is connected to the second port 121b of the second switch, and the fourth path 400 is configured to receive a wifi signal of a second frequency band, such as a wifi signal of 5G. Wherein the third filter may be a band pass filter and the fourth filter may be a low pass filter. The wireless fidelity communication circuit of the embodiment of the application can simultaneously realize the transmission of wireless fidelity signals of two frequency bands, and can improve the transmission quality of the wireless fidelity signals.
In some embodiments, the second path 200 in the wireless fidelity communication circuit of fig. 3 may further include a fifth filter, which is connected between the input terminal 201a of the second filter 201 and the second port 120b of the first switch 120, and may be used to filter out the fidelity signal of the second frequency band. The fourth circuit 400 may further include a sixth filter, which is connected between the input end 401a of the fourth filter 401 and the second port 121b of the second switch 121, and configured to filter the fidelity signal of the first frequency band. It should be noted that the wireless fidelity communication circuit may include the fifth filter or the sixth filter, or may include both the fifth filter and the sixth filter.
For example, the first frequency band is 2.4G, and the second frequency band is 5G. The fifth filter may be a 5G notch filter and may be configured to filter the 5G wifi signal coupled to the second path, improving the receive sensitivity of the second path for receiving the 2.4G wifi signal. The sixth filter may be a 2.4G notch filter, and may be configured to filter the 2.4G frequency band wifi signal coupled to the fourth path, so as to improve the receiving sensitivity of the fourth path for receiving the 5G frequency band wifi signal.
In some embodiments, referring to fig. 4, fig. 4 is another schematic diagram of the wifi communication circuit of fig. 3. The first path 100 may further include a first matching element 102 and a first power amplifier 103. The input terminal 102a of the first matching element 102 is connected to the first transmitting terminal 110a, the output terminal 102b of the first matching element 102 is connected to the input terminal 101a of the first filter 101, the output terminal 101b of the first filter 101 is connected to the input terminal 103a of the first power amplifier 103, and the output terminal 103b of the first power amplifier 103 is connected to the first port 120a of the first switch 120. The second path further comprises a second matching element 202, a second power amplifier 203 and a fifth filter 204. The output end 202b of the second matching element 202 is connected to the first receiving end 110b, the input end 202a of the second matching element 202 is connected to the output end 201b of the second filter 201, the input end 201a of the second filter 201 is connected to the output end 203b of the second power amplifier 203, the input end 203a of the second power amplifier 203 is connected to the output end 204b of the fifth filter 204, and the input end 204a of the fifth filter 204 is connected to the second port 120b of the first switch 120.
The common port 120c of the first switch 120 is further connected to one end 140a of the first coupler 140, and the other end 140b of the first coupler 140 is connected to the antenna 151 of the antenna assembly 15 through the first port 150a of the duplexer 150, so as to implement transmission and reception of the wireless fidelity signal in the first frequency band.
The third path 300 may further include a third matching element 302 and a third power amplifier 303. The input end 302a of the third matching element 302 is connected to the second transmitting end 110c, the output end 302b of the third matching element 302 is connected to the input end 301a of the third filter 301, the output end 301b of the third filter 301 is connected to the input end 303a of the third power amplifier 303, and the output end 303b of the third power amplifier 303 is connected to the first port 121a of the second switch 121.
The fourth path further comprises a fourth matching element 402, a fourth power amplifier 403 and a sixth filter 404. The output terminal 402b of the fourth matching element 402 is connected to the second receiving terminal 110d, the input terminal 402a of the fourth matching element 402 is connected to the output terminal 401b of the fourth filter 401, the input terminal 401a of the fourth filter 401 is connected to the output terminal 403b of the fourth power amplifier 403, the input terminal 403a of the fourth power amplifier 403 is connected to the output terminal 404b of the sixth filter 404, and the input terminal 404a of the sixth filter 404 is connected to the second port 121b of the second switch 121.
The common port 121c of the second switch 121 is further connected to one end 141a of the second coupler 141, and the other end 141b of the second coupler 141 is connected to the antenna 151 of the antenna assembly 15 through the second port 150b of the duplexer 150, so as to implement transmission and reception of the wireless signal in the second frequency band.
When the duplexer 150 is connected to the antenna 151, the antenna 151 may be connected to the common port 150c of the duplexer.
When the first frequency band is 2.4G and the second frequency band is 5G, it should be noted that the first filter, the second filter, and the third filter may be band-pass filters, the fourth filter may be a low-pass filter, the fifth filter may be a 5G notch filter, the sixth filter may be a 2.4G notch filter, the second power amplifier and the fourth power amplifier are low-noise power amplifiers, and the first switch and the second switch are transceiving switches for switching between a receiving state and a transmitting state when the wireless fidelity circuit transmits a signal.
The embodiment of the application sets up band pass filter at the first sending end and the second sending end of transceiver, can filter the spurious signal that transceiver leaked out, reduces band pass filter's insertion loss simultaneously and to wireless fidelity signal's influence, solves the problem of the transmission signal decay of first route and third route, improves the transmission quality of the wireless fidelity signal of each frequency channel. The notch filter is arranged at the input end of the low-noise power amplifier, so that interference signals of each frequency band can be filtered, and the condition that the low-noise power amplifier is saturated and the receiving quality of wireless fidelity signals of each frequency band is influenced because infection signals enter the low-noise power amplifier is avoided; and because the attenuation of the notch filter is smaller, the noise coefficient of the wireless fidelity communication circuit cannot be influenced, and nonlinear products generated by the low-noise power amplifier can be filtered. The low noise power amplifier in the transceiver can be prevented from being saturated by arranging a band-pass filter or a low-pass filter at the output end of the low noise power amplifier.
Because the 5G frequency band has a wide range and can be divided into four sub-frequency bands of 5Gband1 to 5Gband4, three-frequency concurrent wireless fidelity products of 2.4G, 5G band1 and 5G band4 are derived. However, in the transmission process of the wireless fidelity signals of the three frequency bands, the signals of the frequency bands interfere with each other, and the transmission quality of the wireless fidelity signals is poor.
In some embodiments, the wireless fidelity communication circuit may perform transmission of wireless fidelity signals in three frequency bands. As shown in fig. 5, the second frequency band includes a first frequency sub-band and a second frequency sub-band, such as a 5G band1 frequency band for the first frequency sub-band and a 4 frequency band for the second frequency sub-band. Such as the third path 300, may be used to transmit wireless fidelity signals in the 5G band1 frequency band; the fourth path may be configured to receive a wireless fidelity signal in the 5G band1 frequency band.
The transceiver 110 may further include a third transmitting end 110e and a third receiving end 110f, and the wireless fidelity communication circuit may further include a fifth path 500 and a sixth path 600, where the fifth path 500 may be configured to transmit a wireless fidelity signal of a second frequency sub-band, such as a wireless fidelity signal of a 5G band4 frequency band; the sixth path 600 may be used to receive wireless fidelity signals of a second sub-band, such as for receiving wireless fidelity signals of the 5G band4 band.
The fifth path 500 may include a seventh filter 501, the seventh filter 501 may include an input terminal 501a and an output terminal 501b, the input terminal 501a of the seventh filter is connected to the third transmitting terminal 110e, and the output terminal 501b of the seventh filter is connected to the first interface 122a of the third switch 122. The sixth path 600 may include an eighth filter 601, the eighth filter 601 may include an input 601a and an output 602b, the output 601b of the eighth filter 601 is connected to the third receiving terminal 110f, and the input 601a of the eighth filter 601 is connected to the second interface 122b of the third switch 122.
The common port 120c of the first switch 120 may be connected to the antenna 151 through a ninth filter 160, and the ninth filter 160 may be a high-pass filter for filtering the interference signals in the second frequency band. The common port 121c of the second switch 121 may be connected to the antenna 151 through a tenth filter 161, and the tenth filter 161 may be a film bulk acoustic resonator filter for filtering the interference signal of the first sub-band. The common port 122c of the third switch 122 may be connected to the antenna 151 through an eleventh filter 162, and the eleventh filter 162 may be a film bulk acoustic resonator filter for filtering the interference signal of the second sub-band.
In some embodiments, referring to fig. 6, fig. 6 is another schematic diagram of the wifi communication circuit of fig. 5. The fifth path 500 may further include a fifth matching element 502 and a fifth power amplifier 503. The input terminal 502a of the fifth matching element 502 is connected to the third transmitting terminal 110e, the output terminal 502b of the fifth matching element 502 is connected to the input terminal 503a of the seventh filter 503, the output terminal 501b of the seventh filter 501 is connected to the input terminal 503a of the fifth power amplifier 503, and the output terminal 503b of the fifth power amplifier 503 is connected to the first port 122a of the third switch 122. The sixth path 600 further comprises a sixth matching element 602, a sixth power amplifier 603 and a twelfth filter 604. The output 602b of the sixth matching element 602 is connected to the third receiving terminal 110f, the input 602a of the sixth matching element 602 is connected to the output 601b of the eighth filter 601, the input 601a of the eighth filter 601 is connected to the output 603b of the sixth power amplifier 603, the input 603a of the sixth power amplifier 603 is connected to the output 604b of the twelfth filter 604, and the input 604a of the twelfth filter 604 is connected to the second port 122b of the third switch 122.
The common port 120c of the first switch 120 is further connected to one end 140a of the first coupler 140, the other end 140b of the first coupler 140 is connected to one end 160a of the ninth filter 160, and the other end 160b of the ninth filter 160 is connected to the antenna 151 of the antenna assembly 15 through the first port 170a of the triplexer 170, so as to implement transmission and reception of the wireless fidelity signal in the first frequency band. The common port 121c of the second switch 121 is further connected to one end 141a of the second coupler 141, the other end 141b of the second coupler 141 is connected to one end 161a of the tenth filter 161, and the other end 161b of the tenth filter 161 is connected to the antenna 151 of the antenna assembly 15 through the second port 171b of the triplexer 170, thereby realizing transmission and reception of the wifi signal in the first sub-band. The third switch 122 further includes a common port 122c, the common port 122c of the third switch 122 is further connected to one end 142a of the third coupler 142, the other end 142b of the third coupler 142 is connected to one end 162a of the eleventh filter 162, and the other end 162b of the eleventh filter 162 is connected to the antenna 151 of the antenna assembly 15 through the third port 171c of the triplexer 170, so as to implement transmission and reception of the wireless fidelity signal of the second sub-band.
When the triplexer 170 is connected to the antenna 151, the triplexer may be connected to the antenna 151 through a common port 170d of the triplexer.
This application embodiment can reduce the insertion loss of the transmission signal of each frequency channel through setting up each wave filter, solves under the multifrequency concurrent operation state, the signal interference problem between each frequency channel, reduces the signal interference between two sub-bands through setting up film chamber acoustic resonator filter at first sub-band and second sub-band simultaneously.
The wireless fidelity communication circuit and the electronic device provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (9)
1. A wireless fidelity communication circuit, comprising:
the transceiver comprises a first transmitting end and a first receiving end;
the first path comprises a first power amplifier and a first filter which are connected with each other, the first power amplifier is connected with a first transmitting end of the transceiver, the first filter is connected with a first interface of a first switch so as to filter stray signals of the transceiver and reduce the influence of the insertion loss of the first filter on signals transmitted by the first path, the first path is used for transmitting wireless fidelity signals of a first frequency band, and the first filter is a band-pass filter;
a second path, including a second power amplifier, a second filter and a fifth filter, where one end of the second filter is connected to the first receiving end of the transceiver, the other end of the second filter is connected to one end of the second power amplifier, the other end of the second power amplifier is connected to one end of the fifth filter, the other end of the fifth filter is connected to a second interface of the first switch, the second path is used to receive a wireless fidelity signal in a first frequency band, the second filter is a band pass filter, and the fifth filter is a notch filter;
and a common interface of the first switch is connected with a first coupler, the first coupler is connected with a ninth filter, and the ninth filter is a high-pass filter.
2. The wireless fidelity communication circuit of claim 1, wherein the transceiver further comprises a second transmitter and a second receiver, the wireless fidelity communication circuit further comprising: a third path, including a third filter, where one end of the third filter is connected to the second sending end of the transceiver, the other end of the third filter is connected to the first interface of the second switch, and the third path is used to send a wireless fidelity signal of a second frequency band;
and the fourth path comprises a fourth filter, one end of the fourth filter is connected with the second receiving end of the transceiver, the other end of the fourth filter is connected with the second interface of the second switch, and the fourth path is used for receiving the wireless fidelity signal of the second frequency band.
3. The wireless fidelity communication circuit of claim 2, wherein the fourth path further comprises a sixth filter for filtering out wireless fidelity signals in the first frequency band, the sixth filter being connected between the other end of the fourth filter and the second interface of the second switch.
4. The wireless fidelity communication circuit of claim 2, wherein the fourth path further comprises a sixth filter for filtering out wireless fidelity signals in the first frequency band, the sixth filter being connected between the other end of the fourth filter and the second interface of the second switch.
5. The wireless fidelity communication circuit of any of claims 2 to 4 wherein the second frequency band comprises a first frequency sub-band and a second frequency sub-band, the third path is used to transmit wireless fidelity signals of the first frequency sub-band, the fourth path is used to receive wireless fidelity signals of the first frequency sub-band, the transceiver further comprises a third transmit end and a third receive end, the wireless fidelity communication circuit further comprises a fifth path and a sixth path;
the fifth path comprises a seventh filter, one end of the seventh filter is connected with the third sending end of the transceiver, the other end of the seventh filter is connected with the first interface of the third switch, and the fifth path is used for sending the wireless fidelity signal of the second sub-band;
the sixth path comprises an eighth filter, one end of the eighth filter is connected with a third receiving end of the transceiver, the other end of the seventh filter is connected with a second interface of the third switch, and the sixth path is used for receiving the wireless fidelity signal of the second sub-band;
and the common interface of the second switch is connected with the tenth filter and used for filtering the interference signals of the second sub-band, and the common interface of the third switch is connected with the eleventh filter and used for filtering the interference signals of the first sub-band.
6. The wireless fidelity communication circuit of claim 5, wherein a second coupler is coupled between the second switch and the tenth filter, and a third coupler is coupled between the third switch and the eleventh filter.
7. The wireless fidelity communication circuit of claim 6, wherein a first matching element is connected between the first transmitter and the first filter, a second matching element is connected between the first receiver and the second filter, a third matching element is connected between the second transmitter and the third filter, a fourth matching element is connected between the second receiver and the fourth filter, a fifth matching element is connected between the third transmitter and the seventh filter, and a sixth matching element is connected between the third receiver and the eighth filter.
8. The wireless fidelity communication circuit of claim 7, wherein a third power amplifier is connected between the third filter and the second switch, a fourth power amplifier is connected between the fourth filter and the second switch, a fifth power amplifier is connected between the seventh filter and the third switch, a sixth power amplifier and a twelfth filter are arranged between the eighth filter and the third switch, one end of the sixth power amplifier is connected to the eighth filter, the other end of the sixth power amplifier is connected to one end of the twelfth filter, and the other end of the twelfth filter is connected to the second interface of the third switch.
9. An electronic device comprising the wireless fidelity communication circuit of any of claims 1 to 8.
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| CN201910133615.4A CN109714076B (en) | 2019-02-22 | 2019-02-22 | Wireless fidelity communication circuit and electronic equipment |
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| CN201910133615.4A CN109714076B (en) | 2019-02-22 | 2019-02-22 | Wireless fidelity communication circuit and electronic equipment |
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| CN102036430A (en) * | 2009-09-29 | 2011-04-27 | 国际商业机器公司 | Wireless communication transceiver and mode switch device thereof |
| WO2016052909A1 (en) * | 2014-09-29 | 2016-04-07 | 엘지전자 주식회사 | Terminal capable of simultaneously performing cellular communication and d2d communication |
| CN108494413A (en) * | 2018-03-16 | 2018-09-04 | 广东欧珀移动通信有限公司 | Multidiameter option switch and Related product |
| CN108882295A (en) * | 2013-10-14 | 2018-11-23 | 网件公司 | For using work in the front-end module and Antenna Design of the wireless device of the WLAN module of different radio frequency band simultaneously |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9548768B2 (en) * | 2015-02-09 | 2017-01-17 | Qorvo Us, Inc. | Radio frequency front end circuitry for carrier aggregation |
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| CN102036430A (en) * | 2009-09-29 | 2011-04-27 | 国际商业机器公司 | Wireless communication transceiver and mode switch device thereof |
| CN108882295A (en) * | 2013-10-14 | 2018-11-23 | 网件公司 | For using work in the front-end module and Antenna Design of the wireless device of the WLAN module of different radio frequency band simultaneously |
| WO2016052909A1 (en) * | 2014-09-29 | 2016-04-07 | 엘지전자 주식회사 | Terminal capable of simultaneously performing cellular communication and d2d communication |
| CN108494413A (en) * | 2018-03-16 | 2018-09-04 | 广东欧珀移动通信有限公司 | Multidiameter option switch and Related product |
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