CN216313093U - Mobile communication switching circuit and fixed telephone - Google Patents
Mobile communication switching circuit and fixed telephone Download PDFInfo
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- CN216313093U CN216313093U CN202123039739.8U CN202123039739U CN216313093U CN 216313093 U CN216313093 U CN 216313093U CN 202123039739 U CN202123039739 U CN 202123039739U CN 216313093 U CN216313093 U CN 216313093U
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Abstract
The application provides a mobile communication switching circuit and a fixed telephone. The mobile communication switching circuit comprises a mobile communication circuit and an electronic switch switching circuit; the mobile communication circuit comprises a mobile communication card holder device and an embedded mobile communication device; the electronic switch switching circuit comprises a communication switcher and a wireless local area controller, wherein the output end of the wireless local area controller is connected with the control end of the communication switcher, the output end of the switching communication switcher serves as a corresponding output end group, a first output end group of the communication switcher is connected with the input end of the mobile communication card holder device, and a second output end group of the communication switcher is connected with the input end of the embedded mobile communicator. After the wireless local area controller receives the mobile communication switching signal, the output end group of the communication switcher is correspondingly switched, so that the communication switcher is connected with the mobile communication card holder or the embedded mobile communicator, and different mobile communication modes are conveniently switched.
Description
Technical Field
The present invention relates to the field of communications equipment technologies, and in particular, to a mobile communications switching circuit and a fixed-line telephone.
Background
With the development of mobile communication technology, improvements to SIM (Subscriber Identity Module) cards are still continuously performed, so as to provide a more convenient communication manner for mobile communication, for example, for users of ordinary SIM cards, the SIM card in the card slot may be replaced, and the user Identity information of the device may be replaced at will, which also easily causes the users of ordinary SIM cards to perform illegal activities. In order to reduce the occurrence of the events, the E-SIM card is used as an embedded SIM card in addition to the SIM card, so that a user cannot modify the identity information in the E-SIM card, the identity information of the E-SIM card is unique and determined, the identity information of the user using the SIM card is convenient to verify, and the illegal activities of the user using the communication equipment with the E-SIM card are avoided.
However, the conventional communication device can only use one SIM card, i.e. either a normal SIM card or an E-SIM card, and cannot provide a function of freely switching different types of SIM cards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a mobile communication switching circuit and a fixed telephone which are convenient for switching communication modes.
The purpose of the utility model is realized by the following technical scheme:
a mobile communication switching circuit, comprising: a mobile communication circuit and an electronic switch switching circuit; the mobile communication circuit comprises a mobile communication card holder and an embedded mobile communicator, wherein the mobile communication card holder is used for plugging a user identification communication card so as to receive and transmit a first mobile communication mode signal, and the embedded mobile communicator is used for receiving and transmitting a second mobile communication mode signal; the electronic switch switching circuit comprises a communication switcher and a wireless local area controller, wherein the input end of the wireless local area controller is used for receiving a mobile communication switching signal, the output end of the wireless local area controller is connected with the control end of the communication switcher so as to switch the output end of the communication switcher into a corresponding output end group, the input end of the communication switcher is used for receiving a network access identification signal, the first output end group of the communication switcher is connected with the input end of the mobile communication card holder, and the second output end group of the communication switcher is connected with the input end of the embedded mobile communicator.
In one embodiment, the electronic switch switching circuit further includes a first resistor, the output terminal of the wireless local area controller is connected to a first terminal of the first resistor, and a second terminal of the first resistor is connected to the control terminal of the communication switch.
In one embodiment, the electronic switch switching circuit further includes a first capacitor, a first end of the first capacitor is connected to the control end of the communication switch, and a second end of the first capacitor is grounded.
In one embodiment, the electronic switch switching circuit further includes a second resistor, a first end of the first capacitor is connected to a first end of the second resistor, and a second end of the second resistor is grounded.
In one embodiment, the mobile communication switching circuit further includes a mobile network access device, an input terminal of the mobile network access device is configured to receive a mobile network signal, and a first data terminal of the mobile network access device is connected to the input terminal of the communication switch.
In one embodiment, the mobile communication switching circuit further includes a third resistor, the first data terminal of the mobile network access device is connected to the first terminal of the third resistor, and the second terminal of the third resistor is connected to the input terminal of the communication switch.
In one embodiment, each output port group of the communication switch is connected to the first data port of the mobile network access device, and the second data port of the mobile network access device is connected to the input port of the wireless local area controller.
In one embodiment, the mobile communication switching circuit further includes a plurality of fourth resistors, and each output terminal set of the communication switch is connected to the first data terminal of the mobile network access device through one of the fourth resistors.
In one embodiment, the electronic switch switching circuit further includes a voltage regulator tube, the first output terminal group of the communication switch is connected to the positive electrode of the voltage regulator tube, and the negative electrode of the voltage regulator tube is grounded.
A fixed-line telephone set, comprising the mobile communication switching circuit of any of the above embodiments.
Compared with the prior art, the utility model has at least the following advantages:
after the wireless local area controller receives the mobile communication switching signal, the output end group of the communication switcher is correspondingly switched, so that the communication switcher is connected with the mobile communication card holder or the embedded mobile communication device, different mobile communication modes are provided, and different mobile communication modes are switched.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a circuit diagram of a communication switch of a mobile communication switching circuit according to an embodiment;
FIG. 2 is a circuit diagram of a mobile communication cradle connected to the communication switch of FIG. 1;
FIG. 3 is a circuit diagram of an embedded mobile communicator connected to the communication switch of FIG. 1;
FIG. 4 is a circuit diagram of a wireless local area controller coupled to the communication switch of FIG. 1;
fig. 5 is a circuit diagram of a mobile network access device connected to the communication switch shown in fig. 1.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model relates to a mobile communication switching circuit. In one embodiment, the mobile communication switching circuit includes a mobile communication circuit and an electronic switch switching circuit. The mobile communication circuit comprises a mobile communication card holder device and an embedded mobile communication device. The mobile communication card holder is used for plugging a user identification communication card to receive and transmit a first mobile communication mode signal. The embedded mobile communicator is used for receiving and transmitting a second mobile communication mode signal. The electronic switch switching circuit comprises a communication switch and a wireless local area controller. The input end of the wireless local area controller is used for receiving mobile communication switching signals, and the output end of the wireless local area controller is connected with the control end of the communication switcher so as to switch the output end of the communication switcher into a corresponding output end group. The input end of the communication switcher is used for receiving network access identification signals, the first output end group of the communication switcher is connected with the input end of the mobile communication card holder device, and the second output end group of the communication switcher is connected with the input end of the embedded mobile communicator. After the wireless local area controller receives the mobile communication switching signal, the output end group of the communication switcher is correspondingly switched, so that the communication switcher is connected with the mobile communication card holder or the embedded mobile communicator, and different mobile communication mode signals can be conveniently received and transmitted, and therefore different mobile communication modes can be conveniently switched.
Please refer to fig. 1, which is a circuit diagram of a communication switch of a mobile communication switching circuit according to an embodiment of the present invention.
The mobile communication switching circuit of an embodiment includes a mobile communication circuit and an electronic switch switching circuit. Referring to fig. 2 to 4, the mobile communication circuit includes a mobile communication card holder U3 and an embedded mobile communication device U5. The mobile communication card holder U3 is configured to plug in a user identification communication card to receive and transmit a first mobile communication mode signal, for example, the first mobile communication mode signal includes user identification information in the user identification communication card, and each user identification communication card corresponds to one user identification information, so as to switch the user identification information when the user identification communication card is replaced. The embedded mobile communicator U5 is configured to receive and transmit a second mobile communication mode signal, for example, the second mobile communication mode signal also includes the user identification information of the communication card in the embedded mobile communicator, and the embedded mobile communicator U5 is embedded in the circuit and soldered to the circuit, so that the user identification information in the second mobile communication mode signal is unique. The electronic switch switching circuit comprises a communication switch U2 and a wireless local area controller U12. The input end of the wireless local area controller U12 is configured to receive a mobile communication switching signal, and the output end of the wireless local area controller U12 is connected to the control end of the communication switch U2, so as to switch the output end of the communication switch U2 to a corresponding output end group. The input end of the communication switcher U2 is used for receiving network access identification signals, the first output end group of the communication switcher U2 is connected with the input end of the mobile communication card holder U3, and the second output end group of the communication switcher U2 is connected with the input end of the embedded mobile communicator U5.
In this embodiment, after the wireless lan controller U12 receives the mobile communication switching signal, the output port group of the communication switch U2 is correspondingly switched, so that the communication switch U2 is connected to the mobile communication cradle U3 or the embedded mobile communication cradle U5, so as to provide different mobile communication modes, thereby facilitating the switching of different mobile communication modes. The SIM card connected to the mobile communication cradle U3 is a SIM card, the embedded mobile communication cradle U5 is an embedded E-SIM card, and the mobile communication networks used by the two SIM cards may be different, for example, the SIM card uses a network provided by a mobile operator, and the E-SIM card used by the embedded mobile communication cradle U5 uses a network provided by a telecom operator. In another embodiment, after purchasing the wireless data terminal, the network used by the E-SIM card is replaced by writing data to increase the types of applicable mobile communication networks, the model of the mobile communication card holder is SIM _ MUP7801, the model of the embedded mobile communicator is ESIM _ VQFN8-4, the model of the communication switch is IC _ SW _ RS2299_ QFN3-3, and the model of the wireless local area controller is MTK7628 NN.
In one embodiment, referring to fig. 1, the electronic switch switching circuit further includes a first resistor R1, the output terminal of the wireless local area controller U12 is connected to the first terminal of the first resistor R1, and the second terminal of the first resistor R1 is connected to the control terminal of the communication switch U2. In this embodiment, the first resistor R1 is connected in series between the wireless lan controller U12 and the communication switch U2, and the first resistor R1 steps down the voltage input from the wireless lan controller U12 to the communication switch U2, so as to avoid an excessive voltage at the control terminal of the communication switch U2, and ensure the normal operation of the communication switch U2. In another embodiment, the resistance of the first resistor R1 is 0 Ω, that is, the output terminal of the wireless local area controller U12 is connected to the control terminal of the communication switch U2 through a wire, so that electronic components on a circuit board on which the mobile communication switching circuit is located are reduced without an excessive voltage, thereby reducing the cost.
In one embodiment, referring to fig. 1, the electronic switch switching circuit further includes a first capacitor C9, a first terminal of the first capacitor C9 is connected to the control terminal of the communication switch U2, and a second terminal of the first capacitor C9 is grounded. In this embodiment, the first capacitor C9 is located at the control end of the communication switch U2, that is, the first capacitor C9 is connected to the output end of the wireless lan controller U12, and the first capacitor C9 filters the signal output from the wireless lan controller U12 to the control end of the communication switch U2, so as to reduce the interference in the mobile communication switching signal input to the communication switch U2, and enable the communication switch U2 to switch the mobile communication mode accurately.
Further, referring to fig. 1, the electronic switch switching circuit further includes a second resistor R28, a first end of the first capacitor C9 is connected to a first end of the second resistor R28, and a second end of the second resistor R28 is grounded. In this embodiment, the first capacitor C9 not only filters the switching signal at the control terminal of the communication switch U2 to reduce signal interference, but also stabilizes the voltage at the control terminal of the communication switch U2, i.e. when the voltage at the control terminal of the communication switch U2 is under-voltage, the first capacitor C9 discharges to ensure the voltage at the control terminal of the communication switch U2 to be stable, thereby improving the stability of the communication switch U2 in switching the mobile communication mode.
In one embodiment, referring to fig. 5, the mobile communication switching circuit further includes a mobile network switch U1, an input terminal of the mobile network switch U1 is configured to receive a mobile network signal, and a first data terminal of the mobile network switch U1 is connected to an input terminal of the communication switch U2. In this embodiment, the mobile network access device U1 serves as a receiver for external mobile network signals, and the mobile network signals received by the mobile network access device U1 are communication signals of a current mobile network, so as to determine a communication mode used by the mobile communication switching circuit. The mobile network switch U1 is a 4G module, the obtained mobile network signal is a mobile communication signal of a 4G network, and for mobile communication networks provided by different mobile communication providers, the mobile network switch U1 performs corresponding access, so that after the communication switch U2 switches the mobile communication mode, the corresponding mobile network is accessed, so that the mobile communication switching circuit correspondingly uses the mobile communication card holder U3 or the embedded mobile communication device U5, that is, a common SIM card and an E-SIM card are switched. In another embodiment, the mobile network access device is model MOD _ a 7602X-H172.
Further, referring to fig. 5, the mobile communication switching circuit further includes a third resistor R8, the first data terminal of the mobile network access device U1 is connected to the first terminal of the third resistor R8, and the second terminal of the third resistor R8 is connected to the input terminal of the communication switch U2. In this embodiment, the input terminal of the communication switch U2 has a plurality of data terminal interfaces, and each of the data terminal interfaces is connected in series with a third resistor R8. The third resistor R8 is located between the first data end of the mobile network access device U1 and the input end of the communication switch U2, the third resistor R8 limits the current of the signal between the mobile network access device U1 and the communication switch U2, so as to reduce the current input to the communication switch U2 from the mobile network access device U1, thereby ensuring that the mobile network access device U1 inputs accurate mobile communication data to the communication switch U2.
Still further, each output terminal group of the communication switch U2 is connected to the first data terminal of the mobile network access device U1, and the second data terminal of the mobile network access device U1 is connected to the input terminal of the wireless local area controller U12. In this embodiment, the first output port group of the communication switch U2 is connected to the input port of the mobile communication cradle U3, the second output port group of the communication switch U2 is connected to the input port of the embedded mobile communication device U5, and the output port group of the communication switch U2 corresponds to a mobile communication network and is switched to different mobile communication networks. Each output port group of the communication switch U2 is connected to the first data port of the mobile network access device U1, that is, communication signals before and after switching the mobile communication mode are received, so as to determine whether the mobile communication mode is switched. In this way, the second data terminal of the mobile network access device U1 is connected to the input terminal of the wireless local area controller U12, which facilitates to determine whether the mobile network access device U1 completes the accurate access of the network after the handover, i.e. whether the mobile communication network is correctly registered.
Further, referring to fig. 1, the mobile communication switching circuit further includes a plurality of fourth resistors R9, and each output terminal set of the communication switch U2 is connected to the first data terminal of the mobile network access device U1 through one of the fourth resistors R9, respectively. In this embodiment, each output terminal group of the communication switch U2 is an output terminal of a communication signal after switching a mobile communication network, each output terminal group of the communication switch U2 transmits the switched signal to the first data terminal of the mobile network access device U1, so that the mobile network access device U1 receives the signal change condition before and after switching in time, and therefore the condition of changing the mobile communication mode is transmitted to the wireless local area controller U12 through the second data terminal of the mobile network access device U1, and the wireless local area controller U12 determines whether the mobile network access device U1 is correctly accessed to the corresponding mobile communication network. Moreover, the fourth resistor R9 limits the current between the communication switch U2 and the mobile network access device U1, so as to ensure the normal operation of the communication switch U2 and the mobile network access device U1.
In another embodiment, the signal transmission lines among the communication switch, the mobile network access device and the wireless local area controller are all processed in a packet mode on the circuit board to ensure stable transmission of each data signal.
In one embodiment, referring to fig. 2, the electronic switch switching circuit further includes a voltage regulator tube RV, the first output terminal group of the communication switch U2 is connected to the positive electrode of the voltage regulator tube RV, and the negative electrode of the voltage regulator tube RV is grounded. In this embodiment, the voltage regulator RV regulates a voltage at an output terminal of the first output terminal group of the communication switch U2 to ensure that the voltage at the input terminal of the mobile communication cradle U3 is stable, so that the mobile communication cradle U3 can be accurately connected to a corresponding mobile communication network.
In one embodiment, the present application further provides a fixed-line telephone set including the mobile communication switching circuit described in any of the above embodiments. In this embodiment, the mobile communication switching circuit includes a mobile communication circuit and an electronic switch switching circuit. The mobile communication circuit comprises a mobile communication card holder device and an embedded mobile communication device. The mobile communication card holder is used for plugging a user identification communication card to receive and transmit a first mobile communication mode signal. The embedded mobile communicator is used for receiving and transmitting a second mobile communication mode signal. The electronic switch switching circuit comprises a communication switch and a wireless local area controller. The input end of the wireless local area controller is used for receiving mobile communication switching signals, and the output end of the wireless local area controller is connected with the control end of the communication switcher so as to switch the output end of the communication switcher into a corresponding output end group. The input end of the communication switcher is used for receiving network access identification signals, the first output end group of the communication switcher is connected with the input end of the mobile communication card holder device, and the second output end group of the communication switcher is connected with the input end of the embedded mobile communicator. After the wireless local area controller receives the mobile communication switching signal, the output end group of the communication switcher is correspondingly switched, so that the communication switcher is connected with the mobile communication card holder or the embedded mobile communication device, different mobile communication modes are provided, and different mobile communication modes are switched.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A mobile communication switching circuit, comprising:
the mobile communication circuit comprises a mobile communication card holder and an embedded mobile communicator, wherein the mobile communication card holder is used for plugging a user identification communication card to receive and transmit a first mobile communication mode signal, and the embedded mobile communicator is used for receiving and transmitting a second mobile communication mode signal;
the electronic switch switching circuit comprises a communication switcher and a wireless local area controller, wherein the input end of the wireless local area controller is used for receiving a mobile communication switching signal, the output end of the wireless local area controller is connected with the control end of the communication switcher so as to switch the output end of the communication switcher into a corresponding output end group, the input end of the communication switcher is used for receiving a network access identification signal, the first output end group of the communication switcher is connected with the input end of the mobile communication card holder, and the second output end group of the communication switcher is connected with the input end of the embedded mobile communicator.
2. The mobile communication switching circuit of claim 1, wherein the electronic switch switching circuit further comprises a first resistor, the output terminal of the wireless local area controller is connected to a first terminal of the first resistor, and a second terminal of the first resistor is connected to the control terminal of the communication switch.
3. The mobile communication switching circuit of claim 1, wherein the electronic switch switching circuit further comprises a first capacitor, a first terminal of the first capacitor is connected to the control terminal of the communication switch, and a second terminal of the first capacitor is grounded.
4. The mobile communication switching circuit according to claim 3, wherein the electronic switch switching circuit further comprises a second resistor, a first terminal of the first capacitor is connected to a first terminal of the second resistor, and a second terminal of the second resistor is grounded.
5. The mobile communication switching circuit according to claim 1, further comprising a mobile network switch, wherein an input of the mobile network switch is configured to receive a mobile network signal, and the first data terminal of the mobile network switch is connected to the input of the communication switch.
6. The mobile communication switching circuit according to claim 5, further comprising a third resistor, wherein the first data terminal of the mobile network access device is connected to a first terminal of the third resistor, and a second terminal of the third resistor is connected to the input terminal of the communication switch.
7. The mobile communication switching circuit according to claim 5, wherein each output port set of the communication switch is connected to the first data port of the mobile network access device, and the second data port of the mobile network access device is connected to the input port of the wireless local area controller.
8. The mobile communication switching circuit according to claim 7, further comprising a plurality of fourth resistors, wherein each output terminal set of the communication switch is connected to the first data terminal of the mobile network access device through one of the fourth resistors.
9. The mobile communication switching circuit according to claim 1, wherein the electronic switch switching circuit further comprises a voltage regulator tube, the first output terminal set of the communication switch is connected to a positive electrode of the voltage regulator tube, and a negative electrode of the voltage regulator tube is grounded.
10. A fixed-line telephone comprising a mobile communication switching circuit according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039739.8U CN216313093U (en) | 2021-11-29 | 2021-11-29 | Mobile communication switching circuit and fixed telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123039739.8U CN216313093U (en) | 2021-11-29 | 2021-11-29 | Mobile communication switching circuit and fixed telephone |
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| Publication Number | Publication Date |
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| CN216313093U true CN216313093U (en) | 2022-04-15 |
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| CN202123039739.8U Active CN216313093U (en) | 2021-11-29 | 2021-11-29 | Mobile communication switching circuit and fixed telephone |
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