CN104767038A - Antenna circuit for SVLTE architectures and realization method thereof, and mobile terminal - Google Patents
Antenna circuit for SVLTE architectures and realization method thereof, and mobile terminal Download PDFInfo
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- CN104767038A CN104767038A CN201410003274.6A CN201410003274A CN104767038A CN 104767038 A CN104767038 A CN 104767038A CN 201410003274 A CN201410003274 A CN 201410003274A CN 104767038 A CN104767038 A CN 104767038A
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- 238000013461 design Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The embodiment of the invention discloses an antenna circuit for SVTE architectures. The antenna circuit comprises a first radio-frequency switch, a second radio-frequency switch, a first antenna, and a second antenna. A CDMA 1X transceiver branch, a GSM transceiver branch, and a WCDMA transceiver branch are connected to the first antenna through the first radio-frequency switch. An LTE transceiver branch is connected to the second antenna through the second radio-frequency switch. The embodiment of the invention further discloses a realization method of the antenna circuit for SVTE architectures and a mobile terminal.
Description
Technical Field
The invention relates to an antenna optimization technology, in particular to an antenna circuit for a Long Term Evolution and Voice network synchronous Support (SVLTE) architecture, an implementation method thereof and a mobile terminal.
Background
With the continuous promotion and popularization of Long Term Evolution (LTE) networks, LTE mobile terminals are also rapidly being promoted, and taking LTE mobile phones as an example, radio frequency architectures of LTE mobile phones are mainly divided into two types: one is Circuit Switched network support (CSFB), which is mainly used in a network in which a Wideband Code Division Multiple Access (WCDMA) operator upgrades LTE; the other is SVLTE, which is mainly used in a network in which LTE is upgraded by a Code Division Multiple Access (CDMA) operator.
The main radio frequency of the mobile terminal in the CSFB architecture generally has two antennas: one is used for transmitting and receiving Global System for Mobile Communication (GSM)/WCDMA/LTE, and the other is used for diversity reception of WCDMA/LTE.
The main radio frequency of the mobile terminal of the SVLTE architecture is generally three antennas: one for GSM/WCDMA/LTE transceiving use, another for WCDMA/LTE diversity reception use, and a third for CDMA1X transceiving use.
At present, the number of antennas on a mobile terminal is very large, and a Global Positioning System (GPS) antenna, a Wireless compatibility (Wi-Fi) antenna, a Bluetooth (BT) antenna, if three SVLTE main radio frequency antennas are added, the design difficulty is obviously increased; meanwhile, due to the competitiveness of identification numbers (IDs), costs are in the lee, and the pressure of the mobile terminal will inevitably affect the development and operating conditions of operators.
Disclosure of Invention
In order to solve the problems in the prior art, embodiments of the present invention provide an antenna circuit for an SVLTE architecture, an implementation method thereof, and a mobile terminal, which can reduce antenna design difficulty and reduce space required by an antenna.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides an antenna circuit for an SVLTE (space vector Long term evolution) framework, which comprises the following components: the antenna comprises a first radio frequency switch, a second radio frequency switch, a first antenna and a second antenna; wherein,
the CDMA1X transceiving branch, the GSM transceiving branch and the WCDMA transceiving branch are connected to a first antenna through a first radio frequency switch;
the LTE transceiving branch is connected to the second antenna through the second radio frequency switch.
In the above scheme, the first radio frequency switch includes a common terminal, a first switch, a second switch, and a third switch;
the GSM receiving and transmitting branch is connected to a first antenna through a first switch and a public end;
the WCDMA transceiving branch is connected to a first antenna through a second switch and a public terminal;
the CDMA1X transceiving branch is connected to the first antenna through the common terminal by the third switch.
In the above solution, the antenna circuit further includes: a third radio frequency switch, a third antenna;
the LTE diversity receive branch is connected to the third antenna through a third radio frequency switch.
In the above solution, the first antenna is a low frequency antenna; the second antenna and the third antenna are high-frequency antennas.
The embodiment of the invention also provides an implementation method of the antenna circuit for the SVLTE architecture, which comprises the following steps:
connecting the CDMA1X transceiving branch with the GSM transceiving branch and the WCDMA transceiving branch together to a first antenna through a first radio frequency switch;
and connecting the LTE transceiving branch to a second antenna through a second radio frequency switch.
In the above scheme, the method further comprises: and connecting the LTE diversity receiving branch to a third antenna through a third radio frequency switch.
In the above solution, the first antenna is a low frequency antenna; the second antenna and the third antenna are high-frequency antennas.
The embodiment of the invention also provides a mobile terminal which comprises the antenna circuit.
According to the antenna circuit for the SVLTE architecture, the implementation method thereof and the mobile terminal provided by the embodiment of the invention, all the receiving and transmitting branches including the low-frequency band are centralized to use one antenna through the radio frequency switch by adjusting the connection relation of the radio frequency switch, so that the number of low-frequency antennas can be reduced and the number of high-frequency antennas can be increased in the multi-antenna circuit, thereby reducing the space required by the antennas and reducing the design difficulty of the antennas.
Drawings
Fig. 1 is a schematic structural diagram of an antenna circuit for an SVLTE architecture in the related art;
fig. 2 is a schematic structural diagram of an antenna circuit for SVLTE architecture according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating an implementation method of an antenna for SVLTE architecture according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mobile terminal including an antenna circuit for SVLTE architecture according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural diagram of an antenna circuit for the SVLTE architecture in the related art, and as shown in fig. 1, an antenna circuit 100 for the SVLTE architecture includes: a first radio frequency switch 11, a second radio frequency switch 12, a third radio frequency switch 13, a first antenna 14, a second antenna 15, and a third antenna 16; the first rf switch 11 includes a common terminal 110, a first switch 111, a second switch 112, and a third switch 113.
Specifically, the first antenna 14 is connected to the common terminal 110 of the first radio frequency switch 11, the first switch 111 of the first radio frequency switch 11 is connected to the GSM transceiving branch, the second switch 112 of the first radio frequency switch 11 is connected to the WCDMA transceiving branch, and the third switch 113 of the first radio frequency switch 11 is connected to the LTE transceiving branch;
the second antenna 15 is connected to one end of the second radio frequency switch 12, and the other end of the second radio frequency switch 12 is connected to the CDMA1X transceiving branch; the third antenna 16 is connected to one end of the third radio frequency switch 13, and the other end of the third radio frequency switch 13 is connected to the LTE diversity reception branch.
For the antenna circuit shown in fig. 1, since the GSM/WCDMA/LTE transceiving branch transmits both high-frequency signals and low-frequency signals, the first antenna 14 is a low-frequency antenna, and requires a large space; only low-frequency signals are transmitted on the CDMA1X transceiving branch, so the second antenna 15 is also a low-frequency antenna, and the required space is large; since only high-frequency signals are transmitted to the LTE diversity receiving branch, the third antenna 16 is a high-frequency antenna, and requires a small space. It can be seen that, in the three antennas of the antenna circuit 100 for the SVLTE architecture shown in fig. 1, there are two low-frequency antennas and one high-frequency antenna, and accordingly, more low-frequency antennas in the antenna circuit 100 for the SVLTE architecture result in a large space required by the antennas, so that the difficulty of antenna design is increased.
For example, if the LTE frequency bands of the operator are B1 and B3, both are high frequencies; the CDMA1X band is BC0, which is low frequency; roaming GSM four-frequency and WCDMA four-frequency, both high and low frequency; in practical use, the first antenna 14 is used for the LTE bands B1 and B3 and the roaming GSM quad band and WCDMA quad band, the second antenna 15 is used for the CDMA1X band BC0, and the third antenna 16 is used for LTE diversity reception; correspondingly, the first antenna 14 is a low-frequency antenna, the second antenna 15 is a low-frequency antenna, and the third antenna 16 is a high-frequency antenna; obviously, a large space is required, and the design difficulty of the antenna is increased.
In view of this, in the embodiment of the present invention, by adjusting the connection relationship of the rf switch, all the transmit-receive branches including the low frequency band collectively use one antenna through the rf switch, so as to reduce the number of low frequency antennas and increase the number of high frequency antennas, thereby reducing the space required in the antenna design and reducing the difficulty in antenna design.
Specifically, the embodiment of the present invention changes the implementation scheme of the prior art in which the WCDMA/GSM/LTE transceiver shares one antenna through the radio frequency switch into: stripping relevant frequency bands for LTE receiving and transmitting, and reserving relevant receiving and transmitting frequency bands of GSM and WCDMA; then, connecting the relevant receiving and transmitting frequency band of CDMA1X and the reserved relevant receiving and transmitting frequency band of GSM/WCDMA to the same radio frequency switch, and sharing one antenna; one antenna is used for the stripped LTE related receiving and transmitting frequency band, and one antenna is used for WCDMA/LTE diversity reception; thus, WCDMA/GSM/CDMA1X transceives connections and uses low frequency antennas, while WCDMA/LTE diversity receives connections and uses high frequency antennas, and LTE transceives connections and uses high frequency antennas.
Fig. 2 is a schematic structural diagram of an antenna circuit for an SVLTE architecture according to an embodiment of the present invention, and as shown in fig. 2, an antenna circuit 200 for an SVLTE architecture according to an embodiment of the present invention includes: a first radio frequency switch 11, a second radio frequency switch 12, a third radio frequency switch 13, a first antenna 21, a second antenna 22, and a third antenna 16; the first rf switch 11 includes a common terminal 110, a first switch 111, a second switch 112, and a third switch 113.
Specifically, the first antenna 21 is connected to the common terminal 110 of the first rf switch 11, the first switch 111 of the first rf switch 11 is connected to the GSM transceiving branch, the second switch 112 of the first rf switch 11 is connected to the WCDMA transceiving branch, and the third switch 113 of the first rf switch 11 is connected to the CDMA1X transceiving branch;
the second antenna 22 is connected to one end of the second radio frequency switch 12, and the other end of the second radio frequency switch 12 is connected to the LTE transceiving branch; the third antenna 16 is connected to one end of the third radio frequency switch 13, and the other end of the third radio frequency switch 13 is connected to the LTE diversity reception branch.
For the antenna circuit in the embodiment of the present invention, since the CDMA1X/GSM/WCDMA transceiving branch can transmit high frequency and/or low frequency signals, the first antenna 21 is a low frequency antenna, and the required space is large; only high-frequency signals are transmitted on the LTE transceiving branch, so the second antenna 22 is a high-frequency antenna, and the required space is small; and only high-frequency signals are transmitted on the LTE diversity receiving branch, so the third antenna 16 is a high-frequency antenna and the required space is small; it can be seen that, two high-frequency antennas and one low-frequency antenna are included in the three antennas of the antenna circuit 200 for the SVLTE architecture shown in fig. 2, and compared with fig. 1, more high-frequency antennas are included in the antenna circuit 200 for the SVLTE architecture, which can save the space required by the antennas and reduce the difficulty of antenna design.
For example, if the LTE frequency bands of the operator are B1 and B3, both are high frequencies; the CDMA1X band is BC0, which is low frequency; roaming GSM four-frequency and WCDMA four-frequency, both high and low frequency; in practical application, the first antenna 21 is used for CDMA1X frequency band BC0 and roaming GSM quad-band and WCDMA quad-band, the second antenna 22 is used for LTE frequency bands B1 and B3, and the third antenna 16 is used for LTE diversity reception; correspondingly, the first antenna 21 is a low frequency antenna, the second antenna 22 is a high frequency antenna, and the third antenna 16 is a high frequency antenna.
Fig. 3 is a schematic flowchart of an implementation method of an antenna circuit for an SVLTE architecture according to an embodiment of the present invention, and as shown in fig. 3, the implementation method includes:
step 301: connecting the CDMA1X transceiving branch with the GSM transceiving branch and the WCDMA transceiving branch together to a first antenna through a first radio frequency switch;
specifically, as shown in fig. 2, the GSM transceiving branch is connected to the first antenna 21 through the first switch 111 of the first rf switch 11 and via the common port 110 of the first rf switch 11; the WCDMA transceiving branch is connected to the first antenna 21 through the second switch 112 of the first radio frequency switch 11 via the common terminal 110 of the first radio frequency switch 11; the CDMA1X transmit-receive branch is connected to the first antenna 21 via the common terminal 110 of the first radio frequency switch 11 through the third switch 113 of the first radio frequency switch 11.
Step 302: connecting the LTE receiving and transmitting branch to a second antenna through a second radio frequency switch;
step 303: connecting the LTE diversity receiving branch to a third antenna through a third radio frequency switch;
specifically, as shown in fig. 2, the LTE transceiver branch is connected to the second antenna 22 through the second radio frequency switch 12; the LTE diversity receive branch is connected to a third antenna 16 via a third radio frequency switch 13.
Based on the above scheme, the CDMA1X/GSM/WCDMA transceiving branch connected to the first rf switch 11 can transmit high frequency signals and/or low frequency signals, so the first antenna is a low frequency antenna, and the required space is large; only high-frequency signals are transmitted on the LTE receiving and transmitting branch connected with the second radio frequency switch 12, so that the second antenna is a high-frequency antenna and the required space is small; only high-frequency signals are transmitted on the LTE diversity receiving branch connected with the third radio frequency switch 13, so that the third antenna is a high-frequency antenna and the required space is small; as can be seen, there are two high-frequency antennas and one low-frequency antenna in the three antennas of the antenna circuit 200 for the SVLTE architecture shown in fig. 2, and more high-frequency antennas can save the space required by the antennas and reduce the difficulty in designing the antennas.
For example, if the LTE frequency bands of the operator are B1 and B3, both are high frequencies; the CDMA1X band is BC0, which is low frequency; roaming GSM four-frequency and WCDMA four-frequency, both high and low frequency; in practical application, as shown in fig. 1, the first antenna 14 is used for LTE bands B1, B3 and roaming GSM quad band and WCDMA quad band, the second antenna 15 is used for CDMA1X band BC0, and the third antenna 16 is used for LTE diversity reception; then, the first antenna 14 is a low frequency antenna, the second antenna 15 is a high frequency antenna, and the third antenna 16 is a low frequency antenna; by adjusting the connection relationship of the radio frequency switch. With the solution of the embodiment of the present invention, as shown in fig. 2, the CDMA1X frequency band BC0 and the roaming GSM quad band and WCDMA quad band use the first antenna 21, the LTE frequency bands B1 and B3 use the second antenna 22, and the LTE diversity reception uses the third antenna 16; then, the first antenna 21 is a low frequency antenna, the second antenna 22 is a high frequency antenna, and the third antenna 16 is a high frequency antenna; thus, the number of low-frequency antennas is reduced, and the number of high-frequency antennas is increased.
Fig. 4 is a schematic structural diagram of a mobile terminal including an antenna circuit for SVLTE architecture according to an embodiment of the present invention, and as shown in fig. 4, the mobile terminal 400 includes: the antenna circuit 200 for the SVLTE architecture, as shown in fig. 2, the antenna circuit 200 for the SVLTE architecture includes: a first radio frequency switch 11, a second radio frequency switch 12, a third radio frequency switch 13, a first antenna 21, a second antenna 22, and a third antenna 16; the first rf switch 11 includes a common terminal 110, a first switch 111, a second switch 112, and a third switch 113.
Specifically, the first antenna 21 is connected to the common terminal 110 of the first rf switch 11, the first switch 111 of the first rf switch 11 is connected to the GSM transceiving branch, the second switch 112 of the first rf switch 11 is connected to the WCDMA transceiving branch, and the third switch 113 of the first rf switch 11 is connected to the CDMA1X transceiving branch.
The second antenna 22 is connected to one end of the second radio frequency switch 12, and the other end of the second radio frequency switch 12 is connected to the LTE transceiving branch; the third antenna 16 is connected to one end of the third radio frequency switch 13, and the other end of the third radio frequency switch 13 is connected to the LTE diversity reception branch.
For the antenna circuit in the embodiment of the present invention, since the CDMA1X/GSM/WCDMA transceiving branch can transmit high frequency and/or low frequency signals, the first antenna 21 is a low frequency antenna, and the required space is large; only high-frequency signals are transmitted on the LTE transceiving branch, so the second antenna 22 is a high-frequency antenna, and the required space is small; the LTE diversity receiving branch only transmits high-frequency signals, so the third antenna 16 is a high-frequency antenna, and the required space is small; it can be seen that, two high-frequency antennas and one low-frequency antenna are included in the three antennas of the antenna circuit 200 for the SVLTE architecture shown in fig. 2, and more high-frequency antennas are included in the antenna circuit 200 for the SVLTE architecture, which can save the space required by the antennas and reduce the difficulty of antenna design.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (8)
1. An antenna circuit for a SVLTE architecture, the antenna circuit comprising: the antenna comprises a first radio frequency switch, a second radio frequency switch, a first antenna and a second antenna; wherein,
the CDMA1X transceiving branch, the GSM transceiving branch and the WCDMA transceiving branch are connected to a first antenna through a first radio frequency switch;
the LTE transceiving branch is connected to the second antenna through the second radio frequency switch.
2. The antenna circuit of claim 1, wherein the first radio frequency switch comprises a common terminal, a first switch, a second switch, and a third switch;
the GSM receiving and transmitting branch is connected to a first antenna through a first switch and a public end;
the WCDMA transceiving branch is connected to a first antenna through a second switch and a public terminal;
the CDMA1X transceiving branch is connected to the first antenna through the common terminal by the third switch.
3. The antenna circuit according to claim 1 or 2, characterized in that the antenna circuit further comprises: a third radio frequency switch, a third antenna;
the LTE diversity receive branch is connected to the third antenna through a third radio frequency switch.
4. The antenna circuit of claim 3, wherein the first antenna is a low frequency antenna; the second antenna and the third antenna are high-frequency antennas.
5. An implementation method of an antenna circuit for a SVLTE architecture, the method comprising:
connecting the CDMA1X transceiving branch with the GSM transceiving branch and the WCDMA transceiving branch together to a first antenna through a first radio frequency switch;
and connecting the LTE transceiving branch to a second antenna through a second radio frequency switch.
6. The method of claim 5, further comprising: and connecting the LTE diversity receiving branch to a third antenna through a third radio frequency switch.
7. The method of claim 6, wherein the first antenna is a low frequency antenna; the second antenna and the third antenna are high-frequency antennas.
8. A mobile terminal, characterized in that it comprises an antenna circuit according to any of claims 1 to 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003274.6A CN104767038A (en) | 2014-01-03 | 2014-01-03 | Antenna circuit for SVLTE architectures and realization method thereof, and mobile terminal |
| PCT/CN2014/080003 WO2015100955A1 (en) | 2014-01-03 | 2014-06-16 | Antenna circuit, method for implementing same and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003274.6A CN104767038A (en) | 2014-01-03 | 2014-01-03 | Antenna circuit for SVLTE architectures and realization method thereof, and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104767038A true CN104767038A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410003274.6A Withdrawn CN104767038A (en) | 2014-01-03 | 2014-01-03 | Antenna circuit for SVLTE architectures and realization method thereof, and mobile terminal |
Country Status (2)
| Country | Link |
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| CN (1) | CN104767038A (en) |
| WO (1) | WO2015100955A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079476A (en) * | 2020-08-21 | 2022-02-22 | 深圳富泰宏精密工业有限公司 | User equipment and communication method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201918986U (en) * | 2010-12-28 | 2011-08-03 | 惠州Tcl移动通信有限公司 | Mobile terminal and antenna device thereof |
| CN102448129A (en) * | 2011-12-31 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for switching mode of LTE (Long Term Evolution) system |
| US20130222206A1 (en) * | 2012-02-29 | 2013-08-29 | Pantech Co., Ltd. | Multiband portable terminal and method for controlling thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710278A (en) * | 2012-06-01 | 2012-10-03 | 天津里外科技有限公司 | Time division-long term evolution (TD-LTE)/time division-synchronous code division multiple access (TD-SCDMA) radio-frequency front transmitter-receiver system |
-
2014
- 2014-01-03 CN CN201410003274.6A patent/CN104767038A/en not_active Withdrawn
- 2014-06-16 WO PCT/CN2014/080003 patent/WO2015100955A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201918986U (en) * | 2010-12-28 | 2011-08-03 | 惠州Tcl移动通信有限公司 | Mobile terminal and antenna device thereof |
| CN102448129A (en) * | 2011-12-31 | 2012-05-09 | 中兴通讯股份有限公司 | Method and device for switching mode of LTE (Long Term Evolution) system |
| US20130222206A1 (en) * | 2012-02-29 | 2013-08-29 | Pantech Co., Ltd. | Multiband portable terminal and method for controlling thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114079476A (en) * | 2020-08-21 | 2022-02-22 | 深圳富泰宏精密工业有限公司 | User equipment and communication method |
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| Publication number | Publication date |
|---|---|
| WO2015100955A1 (en) | 2015-07-09 |
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Application publication date: 20150708 |