WO2013029391A1

WO2013029391A1 - Communication system

Info

Publication number: WO2013029391A1
Application number: PCT/CN2012/075462
Authority: WO
Inventors: 王志梁; 吴鑫琦; 张孝秋
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-08-29
Filing date: 2012-05-14
Publication date: 2013-03-07
Also published as: CN202222017U

Abstract

A communication system is provided by the present utility model. The system includes the following components: a first communication terminal; a communication interface circuit, which is connected to the first communication terminal and configured to switch communication services of the first communication terminal to a second communication terminal; the second communication terminal, which is connected to the communication interface circuit and configured to perform the communication services of the first communication terminal. By using the above technical solution provided by the present utility model, the problem that there is no effective solution in the relevant technology to reduce the power consumption of the communication terminal is solved, and therefore the effect of reducing the power consumption of the communication terminal without affecting the normal communication services is achieved.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a communication system. BACKGROUND OF THE INVENTION Existing mobile phones, regardless of functional models or smart models, are connected by wired means: 1. charging the mobile phone using a charging cable, 2. using a data cable and a personal computer (Personal Computer, referred to as PC) or other device for Universal Serial Bus (USB) or serial port connection, 3. Use wired headset to make calls. In these application forms, the communication and call functions of the mobile phone are realized by their own radio frequency and audio circuits, and as the mobile terminal is more intelligent and the application is more and more, the capacity of the mobile phone battery The requirements are also getting higher and higher. Therefore, how to reduce the power consumption of mobile phones without affecting the normal communication service is an urgent technical problem to be solved. In view of the above problems in the related art, an effective solution has not yet been proposed. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a communication system that solves at least the above problems. According to an aspect of the present invention, a communication system is provided, including: a first communication terminal; a communication interface circuit, connected to the first communication terminal, configured to switch communication service of the first communication terminal to the second communication terminal; The second communication terminal is connected to the communication interface circuit and configured to implement the communication service of the first communication terminal. The communication interface circuit includes: a data communication interface circuit connected between the first communication terminal and the second communication terminal, configured to implement data communication between the first communication terminal and the second communication terminal; and a communication switching circuit configured to The communication service of the first communication terminal is switched between the first communication terminal and the second communication terminal. The above data communication interface circuit is a universal serial bus USB interface. The communication switching circuit includes: a control circuit configured to generate a low level signal when the first communication terminal is connected to the second communication terminal; and generate a high level signal when the first communication terminal is not connected to the second communication terminal The analog switch is set to switch the communication service of the first communication terminal to the first trigger under the trigger of the low level signal a communication terminal; and, under the trigger of the high level signal, switching the communication service of the first communication terminal to the first communication terminal. The communication interface circuit includes: a charging circuit connected to the first power supply circuit of the first communication terminal and the second power supply circuit of the second communication terminal, configured to supply and/or charge the first power supply circuit through the second power supply circuit. The first communication terminal is a mobile phone, and the second communication terminal is a landline. The above communication interface circuits are two, which are respectively disposed on the first communication terminal side and the second communication terminal side, and the two communication interface circuits cooperate with each other. The utility model adopts the technical means for switching the communication service of the first communication terminal to the second communication terminal by using the set communication interface circuit between the communication terminals, and solves the related art, and has not effectively reduced the communication terminal The problem of power consumption, in turn, achieves the effect of reducing the power consumption of the communication terminal without affecting the normal communication service. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate, FIG. Improperly qualified. 1 is a structural block diagram of a communication system according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a communication system according to a preferred embodiment of the present invention; FIG. 3 is a communication according to Embodiment 1 of the present invention. 4 is a schematic structural diagram of a communication system according to Embodiment 2 of the present invention; FIG. 5a is a schematic circuit diagram of a mobile phone side communication interface circuit according to Embodiment 3 of the present invention; FIG. 5b is a schematic diagram of a mobile phone side communication interface circuit according to Embodiment 3 of the present invention; 3 is a schematic diagram of a communication interface circuit on the mobile phone side and an interface circuit on the other terminal side; FIG. 5c is a circuit diagram of another communication terminal circuit on the terminal side according to Embodiment 3 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. 1 is a block diagram showing the structure of a communication system in accordance with an embodiment of the present invention. As shown in Figure 1. The system comprises: a first communication terminal 10; a communication interface circuit 12, connected to the first communication terminal 10, configured to switch the communication service of the first communication terminal 10 to the second communication terminal 14; the second communication terminal 14, connected to The communication interface circuit 12 is arranged to implement the communication service of the first communication terminal 10. In the above embodiment, since the communication service (for example, voice call service) of the first communication terminal (for example, a mobile phone) can be switched to the second communication terminal through the communication interface circuit, the communication service of the first communication terminal is completed by the second communication terminal, The power consumption of the first communication terminal can be reduced, and at the same time, the normal communication service is not affected. In a preferred embodiment of the present invention, as shown in FIG. 2, the communication interface circuit 12 includes: a data communication interface circuit 120 connected between the first communication terminal 10 and the second communication terminal 14, configured to implement Data communication between the first communication terminal 12 and the second communication terminal 14, so that file sharing between the first communication terminal and the second communication terminal can be realized, for example, the communication record and multimedia of the first communication terminal can be shared. Documents, etc. The communication switching circuit 122 is arranged to switch the communication service of the first communication terminal 10 between the first communication terminal 10 and the second communication terminal 14. Preferably, the data communication interface circuit 120 is a universal serial bus (USB) interface. The use of USB technology is relatively simple and easy to implement and promote. Preferably, as shown in FIG. 2, the communication switching circuit 122 includes: a control circuit 1220 configured to generate a low level signal when the first communication terminal 10 is connected to the second communication terminal 14; and at the first communication terminal 10 When not connected to the second communication terminal 14, a high level signal is generated; the analog switch 1222 is configured to switch the communication service of the first communication terminal 10 to the second communication terminal 14 under the trigger of the low level signal; The communication service of the first communication terminal 10 is switched to the first communication terminal 10 under the trigger of the high level signal. In this way, it is possible to control the switching of the communication service of the first communication terminal between the first communication terminal and the second communication terminal according to the level of the level signal. Preferably, as shown in FIG. 2, the communication interface circuit includes: a charging circuit 124 connected to the first power supply circuit of the first communication terminal 10 and the second power supply circuit of the second communication terminal 14, and configured to be powered by the second power supply The circuit supplies and/or charges the first power supply circuit. In this way, while saving the power consumption of the first communication terminal, since the first power supply circuit can be powered and/or charged by the second power supply circuit, the battery life of the first communication terminal can be more effectively extended. In a specific embodiment of the present invention, when the first communication terminal 10 is a mobile phone, since the mobile phone call causes radiation to the human body, the second communication terminal 12 can be a landline or a wireless landline, so that it can be effective. Reduce the radiation of the phone to the human body. Of course, the second communication terminal may also be a mobile phone without considering the radiation factor. In a specific implementation, the foregoing communication interface circuit 12 may be two, respectively disposed on the first communication terminal 10 side and the second communication terminal 14 side, and the two communication interface circuits 12 cooperate with each other to communicate the communication service of the first communication terminal 10. Switching to the second communication terminal 14. In this way, the application of the communication interface circuit is expanded. In order to better understand the above embodiments, the following detailed description will be made in conjunction with the accompanying drawings and specific embodiments. It should be noted that the communication functions involved in the following embodiments include, but are not limited to, communication services. Embodiment 1 Before the present embodiment is described, it should be noted that, in this embodiment, the user mobile phone is equivalent to the first communication terminal 10 in the above embodiment, and the other communication terminals are equivalent to the second communication terminal 14 in the above embodiment. The interface transceiver circuit is equivalent to the communication interface circuit 12 in the above embodiment. In this embodiment, the communication function (service) of the mobile phone is introduced to the mobile phone through a certain interface to reduce the power consumption of the mobile phone and reduce the radiation to the user. To achieve the above objective, the embodiment provides a wired interface solution for easily communicating between a mobile phone and other communication terminals. Through this scheme, users can migrate the communication function of their mobile phones to other communication devices (such as fixed stations, landlines, etc.) connected to them, and the users use the hardware resources of the above communication devices (such as earpieces, microphones, speakers, and display screens). And power and communication circuits, etc.) to achieve the communication function of the mobile phone. Specifically, as shown in FIG. 3, the communication system of this embodiment includes: a user mobile phone 30 (corresponding to the first communication terminal 10), which may be a function mobile phone or a smart phone, and the mobile phone selects a chipset solution and a SIM card according to itself. Different, it can support different communication standards, such as Global System for Mobile Communication (GSM), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA). , width Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), Personal Handyphone System (PHS) The interface transceiver circuit 32 (corresponding to the communication interface circuit 12) is provided with a set of interface transceiver circuits on the mobile phone side and other terminal sides, and is configured to implement signal transmission and reception between corresponding communication systems, and the interface transceiver circuit 32 completed functions include: Power supply circuit, including the mobile phone side to use this circuit to achieve battery charging, also includes other terminal side to use this circuit to achieve external power supply; Data connection interface (equivalent to data communication interface circuit 120), can use USB or other bus Connection mode, complete file sharing between mobile phones and other terminals (such as address book, multimedia files, etc.) when needed;

The SIM card signal switching circuit (corresponding to the communication switching circuit 122) switches the SIM card path on the mobile phone side and the other terminal side to realize SIM card signal sharing. When the interface circuit is not used for connection, the mobile phone and other terminals respectively use the same. The SIM card signal realizes communication. When the interface circuit is used for connection, neither of them can access the SIM card of the mobile phone, but the SIM card of the mobile phone is accessed by the terminal device through the interface; the dedicated interface 34 can be included in the interface. In the transceiver circuit 32, the following signals can be output through the dedicated interface: a power supply signal, a USB signal, a SIM card signal, and a control signal to implement a communication connection between the mobile phone and the terminal device, and physically connected by a data line. It can be connected by means of direct connection of male and female. The other communication terminal 36 (corresponding to the second communication terminal 14) may be a terminal device such as a fixed station or a landline. To communicate with the user's mobile phone in the A, it is generally required to support the same communication system as the mobile phone, such as GSM, TD. -SCDMA, WCDMA, etc., in addition, such communication terminals have an earpiece, a microphone, a speaker, a display screen, a power supply, and a communication circuit, wherein the handset, the microphone, and the speaker can be set to implement a voice call, and the display can be set to an incoming call. SMS, mail display, etc., the power supply can also be used to power the various circuits of the machine, and the communication circuit can be a radio frequency communication circuit (supporting wireless communication mode, such as GSM, TD-SCDMA, WCDMA, etc.), or can be wired. The communication circuit (supports a wired communication mode, such as a fixed telephone, etc.) adopts the technical solution described in this embodiment. When the user connects the mobile phone and other terminal devices through a dedicated interface and an interface transceiver circuit, the mobile phone turns off the communication function and enters the charging state. At the same time, other terminal devices share the SIM card signal of the mobile phone after connecting, and the user can use the SIM card signal. Earpiece, microphone, display and other resources of the terminal to communicate, one can reduce the radiation caused by the phone call, the phone on the other hand can extend battery life. Embodiment 2 In this embodiment, for the other terminal devices 34 that do not support the SIM card, such as a landline, an implementation form as shown in FIG. 4 may be adopted, and the power supply signal, the USB signal, and the audio may be included in the dedicated interface 34. The signal, correspondingly, the interface transceiver circuit 32 of the two sides can realize the charging of the mobile phone by the landline, the USB data communication between the landline and the mobile phone, and at the same time, the sending and receiving audio signals of the mobile phone can be switched to the landline, in this case, the user Voice calls can be implemented using the handset, microphone, and other resources of the base unit. For landlines with external power supply and a bit of array display, the user can charge the mobile phone through the power supply signal, and share the file through the USB signal interface. For the landline without external power supply or dot matrix display, the above power supply can also be omitted. Or USB signal interface. In this implementation form, the mobile phone talks or sends and receives information through the radio frequency and audio circuits on the mobile phone side, but the use of the handset, microphone, power supply and display screen resources of the landline can also reduce the radiation caused by the mobile phone call. And extend the phone's battery life. Embodiment 3 The following is a description of the above embodiment in conjunction with a specific embodiment. The connection interface of a mobile phone and a fixed station (ie, a wireless base station), the communication interface circuit of the embodiment includes a mobile phone side interface circuit (FIG. 5a), and a fixed station side. The interface circuit (Fig. 5c) and the interface connection relationship (Fig. 5b) are three parts. As shown in FIG. 5a, the mobile phone side interface circuit includes the following parts: charging and USB data interface, including VBUS, USB_D -, USB_D+, USB ID, and also includes a ground signal (GND), wherein VBUS is set to receive from the fixed station. Power supply, charge the mobile phone battery, USB_D -, USB_D+, USB_ID can be set to USB communication with the fixed station; SIM card interface and SIM card switching circuit, SIM card interface signals include SIM_VCC, SIM_CLK,

SIM_DATA, SIM_RST four signal lines, SIM card switching circuit includes an analog switch S and its peripheral circuits, and also includes an external interface control signal FLAG, which controls the switching of the above analog switch, when FLAG=H, SIM card Connected to the mobile phone BB, when FLAG=L, the SIM card signal is switched to the external interface. When the mobile phone is not connected to the fixed station, FLAG is high level when the pull-up resistor is used, and the SIM card signal is switched to the baseband control side (BB side) of the mobile phone by the analog switch S, and the user can use the mobile phone normally; when the mobile phone and the fixed station When connected, since the FLAG signal is pulled to GND in the interface connection, FLAG=L, the SIM card signal is switched to the interface side, and can communicate with the fixed station. At the same time, the USB and charging interface can also pass through the interface and the fixed station. The corresponding signals are connected to realize USB charging and data communication. As shown in FIG. 5c, the fixed station side interface circuit includes the following parts: charging and USB data interface, including VBUS, USB_D -, USB_D+, USB ID, and also includes a ground signal (GND), wherein VBUS is set to supply power to the mobile phone. To realize charging of the mobile phone, USB_D -, USB_D+, USB_ID are set to perform USB communication with the mobile phone; SIM card interface and SIM card switching circuit, SIM card interface signals include SIM_VCC, SIM_CLK,

SIM_DATA, SIM_RST four signal lines, SIM card switching circuit includes an analog switch S and its peripheral circuits, and also includes an external interface control signal FLAG, which controls the switching of the above analog switch, when FLAG=H, SIM card Connected to the fixed station BB, when FLAG=L, the SIM card signal is switched to the external interface. When the fixed station is not connected to the mobile phone, FLAG is high level when the pull-up resistor is used, and the SIM card signal is switched to the fixed station BB side by the analog switch S, and the user can use the mobile phone normally; when the mobile phone is connected with the fixed station, Since the FLAG signal is pulled to GND in the interface connection, FLAG=L, the SIM card signal is switched to the interface side, and can be connected with the SIM card signal of the mobile phone. At the same time, the USB and charging interface can also be corresponding signals through the interface and the mobile phone side. Connected to achieve USB charging and data communication. The above two interfaces can be connected through a dedicated data line, and the connection relationship of the data lines is as shown in FIG. 5b. In addition to ensuring interconnection between the two devices, the data line also shorts the FLAG signal to the GD, and when the signal lines are connected, , to achieve the switching of the SIM card signal. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention. For those skilled in the art, the present invention may be variously modified and changed. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

1. A communication system comprising:

First communication terminal;

a communication interface circuit, connected to the first communication terminal, configured to switch the communication service of the first communication terminal to the second communication terminal;

The second communication terminal is connected to the communication interface circuit and configured to implement communication services of the first communication terminal.

2. The system according to claim 1, wherein the communication interface circuit comprises:

a data communication interface circuit, connected between the first communication terminal and the second communication terminal, configured to implement data communication between the first communication terminal and the second communication terminal;

The communication switching circuit is configured to switch the communication service of the first communication terminal between the first communication terminal and the second communication terminal.

3. The system of claim 2 wherein the data communication interface circuit is a universal serial bus USB interface.

4. The system according to claim 1, wherein the communication switching circuit comprises:

a control circuit configured to generate a low level signal when the first communication terminal is connected to the second communication terminal; and to generate a high power when the first communication terminal is not connected to the second communication terminal Flat signal

An analog switch configured to switch a communication service of the first communication terminal to the second communication terminal under the trigger of the low level signal; and to trigger the high level signal The communication service of the first communication terminal is switched to the first communication terminal.

The system according to any one of claims 1 to 4, wherein the communication interface circuit comprises: a charging circuit, and a first power supply circuit of the first communication terminal and a second communication terminal The two power supply circuits are connected to be configured to supply and/or charge the first power supply circuit through the second power supply circuit.

The system according to any one of claims 1 to 4, wherein the first communication terminal is a mobile phone, and the second communication terminal is a landline. The system according to any one of claims 1 to 4, wherein the communication interface circuit is two, and is respectively disposed on the first communication terminal side and the second communication terminal side, and the two communication interfaces are The circuits work together.