CN112242853A

CN112242853A - Data communication method and device

Info

Publication number: CN112242853A
Application number: CN201910651775.8A
Authority: CN
Inventors: 刘星; 罗辉辉; 于艳枫; 何大武; 祝志威; 张敏杰
Original assignee: Norsat International Inc
Current assignee: Norsat International Inc
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2021-01-19
Anticipated expiration: 2039-07-18
Also published as: CN112242853B

Abstract

The application provides a data communication method and a device, the method is applied to a two-way communication terminal, the two-way communication terminal is provided with two voltage-controlled oscillating circuits, and the method comprises the following steps: controlling one of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot so as to enable the two-way communication terminal to work at a first communication frequency band corresponding to the first oscillation frequency; controlling the other voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a second oscillation frequency in a second time slot so as to enable the two-way communication terminal to work at a second communication frequency band corresponding to the second oscillation frequency; the first time slot is different from the second time slot, the first communication frequency band is a communication frequency band applicable to the first communication system, the second communication frequency band is a communication frequency band applicable to the second communication system, and the first communication system is different from the second communication system. The scheme of the application can realize the signal receiving and sending of two communication systems by using one terminal.

Description

Data communication method and device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data communication method and apparatus.

Background

The kind of communication system is diversified, for example, the communication system can be divided into a private network system and a public network system, and the private network system can be further divided into a private network narrowband system (e.g., a trunking system) and a private network broadband system.

Due to the characteristics of different communication systems, in practical applications, a scenario in which two communication systems are simultaneously used for communication is often involved, and in such a scenario, a user must simultaneously carry two terminals respectively suitable for the different communication systems. For example, in a scenario requiring disaster relief, a user needs to communicate with a command center by using a terminal in a trunking mode, and at the same time, needs to communicate with a terminal in a normal direct mode of the user, which is executed on site, by using the terminal in the normal direct mode.

However, since the user needs to hold two terminals at the same time to realize communication with two different communication systems, both hands of the user need to be occupied inevitably, which causes inconvenience in operation; and, the quality of the communication signal is also affected due to signal interference between the two terminals.

Disclosure of Invention

In view of this, the present application provides a data communication method and apparatus, so as to implement signal receiving and transmitting for two communication systems by using one terminal.

In order to achieve the above object, the present application provides a data communication method, which is applied to a two-way communication terminal, where the two-way communication terminal is provided with two voltage-controlled oscillation circuits, including:

controlling one of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot, so that the two-way communication terminal works at a first communication frequency band corresponding to the first oscillation frequency;

controlling the other voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a second oscillation frequency in a second time slot so as to enable the two-way communication terminal to work at a second communication frequency band corresponding to the second oscillation frequency;

the first time slot is different from the second time slot, the first communication frequency band is a communication frequency band applicable to a first communication system, the second communication frequency band is a communication frequency band applicable to a second communication system, and the first communication system is different from the second communication system.

Preferably, the controlling one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot includes:

when the two-way communication terminal is in a standby state, controlling one voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot group, and setting the one voltage-controlled oscillation circuit to be in a signal receiving state, wherein the first time slot group comprises one first time slot or at least two adjacent first time slots;

the controlling another one of the two voltage-controlled oscillation circuits to work at a second oscillation frequency in a second time slot includes:

and when the two-way communication terminal is in a standby state, controlling the other one of the two voltage-controlled oscillating circuits to work at a second oscillating frequency in a second time slot group, and setting the other one of the two voltage-controlled oscillating circuits to be in a signal receiving state, wherein the second time slot group comprises one second time slot or at least two adjacent second time slots, and the first time slot group is adjacent to the second time slot group.

Preferably, the two-way communication terminal comprises two voice output channels;

after the controlling one of the two voltage-controlled oscillation circuits to work at the first oscillation frequency in the first time slot group, the method further includes:

under the condition that the first time slot receives a first voice signal sent by a first terminal of the first communication system to the two-way communication terminal through the first communication frequency band, outputting the first voice signal through one path of voice output channel;

after the controlling another voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at the second oscillation frequency in the second time slot group, the method further includes:

and under the condition that the second time slot receives a second voice signal sent to the two-way communication terminal by a second terminal of the second communication system through the second communication frequency band, outputting the second voice signal through the other path of voice output channel.

under the condition that a first voice call request is detected to be initiated to a first terminal of the first communication system, determining one path of first voltage-controlled oscillation circuit which does not work at a second oscillation frequency from two paths of voltage-controlled oscillation circuits, and controlling the first voltage-controlled oscillation circuit to work at a first oscillation frequency in a first time slot, wherein the first time slot is a nearest time slot after the initiation moment of the first voice call request;

under the condition that a second voice call request is detected to be initiated to a second terminal of the second communication system, one path of second voltage-controlled oscillation circuit which does not work at a first oscillation frequency is determined from the two paths of voltage-controlled oscillation circuits, and the second voltage-controlled oscillation circuit is controlled to work at a second oscillation frequency in a second time slot, wherein the second time slot is a nearest time slot after the initiation moment of the second voice call request.

Preferably, the two-way communication terminal comprises two voice acquisition channels;

after the controlling the first voltage-controlled oscillation circuit to operate at the first oscillation frequency in the first time slot, the method comprises the following steps:

and acquiring a third voice signal acquired by the voice acquisition channel, and transmitting the third voice signal to the first terminal through the first voltage-controlled oscillation circuit.

After the controlling the second voltage-controlled oscillation circuit to operate at the second oscillation frequency in the second time slot, the method includes:

and acquiring a fourth voice signal acquired by the other path of voice acquisition channel, and transmitting the fourth voice signal to the second terminal through the second voltage-controlled oscillation circuit.

Preferably, before the controlling one of the two voltage-controlled oscillation circuits to operate at the first oscillation frequency in the first time slot, the method further includes:

receiving a third voice call request initiated to a first terminal of a first communication system and a second terminal of a second communication system;

collecting a voice signal input by a user in response to the third voice call request;

the controlling one of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot includes:

responding to the third voice call request, controlling a path of voltage-controlled oscillation circuit to work at a first oscillation frequency in a first time slot, and transmitting the voice signal to the first terminal through the path of voltage-controlled oscillation circuit;

and responding to the third voice call request, controlling another path of voltage-controlled oscillation circuit to work at a second oscillation frequency in a second time slot, and transmitting the voice signal to the second terminal through the another path of voltage-controlled oscillation circuit, wherein the second time slot is a time slot which is next to the first time slot and is next to the first time slot.

Preferably, after the controlling one of the two voltage-controlled oscillation circuits to operate at the first oscillation frequency in the first time slot group and setting the one voltage-controlled oscillation circuit in the signal receiving state, the method further includes:

receiving a gateway starting instruction input by a user;

responding to the gateway starting instruction, and monitoring voice signals received by the two voltage-controlled oscillating circuits;

under the condition that a first time slot receives a fifth voice signal sent by the first terminal through the one-way voltage-controlled oscillation circuit, controlling the other-way voltage-controlled oscillation circuit to work at a second oscillation frequency in the latest time slot after receiving the fifth voice signal, and sending the fifth voice signal to a second terminal of the second communication system through the other-way voltage-controlled oscillation circuit;

and under the condition that a second time slot receives a sixth voice signal sent by a second terminal through the other path of voltage-controlled oscillation circuit, controlling the one path of voltage-controlled oscillation circuit to work at a first oscillation frequency in the latest time slot after receiving the sixth voice signal, and sending the sixth voice signal to the first terminal of the first communication system through the one path of voltage-controlled oscillation circuit.

Preferably, the first communication system comprises a base station and at least one first terminal;

before the receiving of the gateway starting instruction input by the user, the method further comprises:

receiving a clock synchronization signal broadcasted by a base station of the first communication system at the first time slot through the path of voltage-controlled oscillation circuit;

and controlling the other path of voltage-controlled oscillation circuit to work at a second oscillation frequency in the latest time slot after the clock synchronization signal is received, and broadcasting the clock synchronization signal to the second communication system through the other path of voltage-controlled oscillation circuit so as to synchronize the clocks among the first communication system, the second communication system and the two-way communication terminal.

In another aspect, the present application further provides a data communication apparatus applied to a two-way communication terminal, where the two-way communication terminal is provided with two voltage-controlled oscillation circuits, including:

the first communication control unit is used for controlling one of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot, so that the two-way communication terminal works at a first communication frequency band corresponding to the first oscillation frequency;

the second communication control unit is used for controlling the other voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a second oscillation frequency in a second time slot so as to enable the two-way communication terminal to work at a second communication frequency band corresponding to the second oscillation frequency;

Preferably, the first communication control unit includes:

the first standby control unit is used for controlling one voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot group when the two-way communication terminal is in a standby state, and setting the one voltage-controlled oscillation circuit to be in a signal receiving state, wherein the first time slot group comprises one first time slot or at least two adjacent first time slots;

the second communication control unit includes:

and the second standby control unit is used for controlling the other voltage-controlled oscillating circuit in the two voltage-controlled oscillating circuits to work at a second oscillating frequency in a second time slot group and setting the other voltage-controlled oscillating circuit in a signal receiving state when the two-way communication terminal is in a standby state, wherein the second time slot group comprises one second time slot or at least two adjacent second time slots, and the first time slot group is adjacent to the second time slot group.

In the embodiment of the application, the two-way communication terminal is provided with two voltage-controlled oscillating circuits, so that the two-way communication terminal can control one voltage-controlled oscillating circuit to work at a first oscillating frequency in a first time slot, and a communication frequency band supported by the two-way communication terminal is a first communication frequency band corresponding to a first communication system; meanwhile, the other voltage-controlled oscillation circuit can be controlled to work at a second oscillation frequency in a second time slot, so that a communication frequency band supported by the two-way communication terminal is a second communication frequency band corresponding to a second communication system, the two-way communication terminal can be utilized to support communication frequency bands of different communication systems in different time slots, and the two-way communication terminal can be further enabled to carry out data communication with communication equipment in two different communication systems in different time slots.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the provided drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating an architecture of a data communication system according to the present application;

fig. 2 is a schematic diagram illustrating a structure of a two-way voltage-controlled oscillation circuit of a two-way communication terminal according to the present application;

fig. 3 is a schematic diagram illustrating a two-way voice baseband of a two-way communication terminal according to the present application;

FIG. 4 is a flow chart illustrating a data communication method of the present application;

FIG. 5 is a schematic flow chart diagram illustrating a data communication method of the present application;

fig. 6 is a diagram showing a two-way communication terminal slotted in two different communication frequency bands in a standby state;

FIG. 7 is a schematic flow chart diagram illustrating a data communication method of the present application;

fig. 8a and 8b are schematic diagrams respectively illustrating different application scenarios of the data communication method of the present application;

FIG. 9 is a schematic flow chart diagram illustrating a data communication method of the present application;

FIG. 10 is a schematic flow chart diagram illustrating a data communication method of the present application;

FIG. 11 shows a schematic of a time slot of a synchronous clock signal in the present application;

FIG. 12 is a flow chart illustrating one particular implementation of a data communication method of the present application;

fig. 13 is a schematic diagram illustrating a structure of a data communication apparatus according to the present application.

Detailed Description

In the data communication method of the embodiment of the application, the two-way communication terminal can simultaneously support data receiving and sending of two different communication systems, and data communication between one terminal and communication equipment in the two different communication systems is realized.

For ease of understanding, a system component architecture to which the solution of the present application is applicable will be described.

For example, referring to fig. 1, a schematic diagram of a component architecture of the data communication system of the present application is shown.

As can be seen from fig. 1, the data communication system comprises: a first communication system 10, a second communication system 11 and a two-way communication terminal 12 capable of establishing a communication connection with the first communication system and the second communication system.

In the embodiment of the present application, the first communication system and the second communication system are two different types of communication systems.

As in fig. 1, a base station based communication system is a first communication system 10, which comprises at least one first terminal 101 and at least one base station 102. Wherein each first terminal is capable of establishing a communication connection with at least one base station.

The second communication system does not belong to a base station based communication system, the second communication system 11 comprising at least one second terminal 111.

For example, in one possible scenario, the first communication system may be a trunked communication system and the second communication system may be a pass-through communication system.

The two-way communication terminal 12 may be in data communication with the first terminal of the first communication system, e.g., the two-way communication terminal may receive data transmitted by the first terminal of the first communication system and transmit data to the first terminal.

At the same time, the two-way communication terminal 12 can also communicate data with a second terminal of the second communication system. For example, the two-way communication terminal may transmit data to the second terminal and may also receive data transmitted by the second terminal to the two-way communication terminal.

Optionally, the two-way communication terminal may also be used as a gateway device between the first communication system and the second communication system. In this case, the two-way communication terminal may forward data transmitted by the first terminal in the first communication system to the second terminal of the second communication system; the data sent by the second terminal in the second communication system may also be forwarded to the first terminal of the first communication system.

If the first communication system is a trunking communication system and the second communication system is a direct communication system, the two-way communication terminal may receive data sent by the first terminal in the trunking communication system and forward the data sent by the first terminal to the second terminal of the direct communication system. Meanwhile, the two-way communication terminal can also forward the data sent by the second terminal of the direct communication system to the first terminal of the trunking communication system.

In the embodiment of the application, in order to enable the dual-path communication terminal to simultaneously support the first communication system and the second communication system, the dual-path communication terminal is different from an existing terminal and is provided with two voltage-controlled oscillating circuits.

The two-way communication terminal can support the communication frequency band corresponding to the oscillation frequency of the voltage-controlled oscillation circuit by controlling the oscillation frequency of the voltage-controlled oscillation circuit.

Each voltage-controlled oscillation circuit at least comprises a voltage-controlled oscillator and a phase-locked loop, and the oscillation frequency of the voltage-controlled oscillator can be locked through the phase-locked loop in the voltage-controlled oscillation circuit.

For the sake of understanding, the two-way voltage-controlled oscillation circuit in the rf module of the two-way communication terminal is first described below. Fig. 2 is a schematic diagram illustrating a structure of a two-way voltage-controlled oscillation circuit in a radio frequency module in a two-way communication terminal according to the present application.

Fig. 2 shows that two voltage-controlled oscillation circuits are connected to the CPU200 of the terminal. Each voltage-controlled oscillation circuit includes a voltage-controlled oscillator 201 and a phase-locked loop 202.

Optionally, in order to control the signal receiving state of the voltage-controlled oscillation circuit more conveniently, each of the voltage-controlled oscillation circuits may further include a switch 203.

As shown in fig. 2, each of the voltage-controlled oscillators 201 is connected to the CPU through a phase-locked loop 202, and a transfer switch 203 is connected to the end of each of the voltage-controlled oscillators 201 that is not connected to the phase-locked loop 202. The voltage-controlled oscillator 201 can be controlled to be in a signal receiving state or a signal transmitting state by a changeover switch 203 connected with the voltage-controlled oscillator.

It will be appreciated that to effect some signal conversion, each voltage controlled oscillator in fig. 2 is connected to a digital-to-analog converter (DAC) 204.

As can be seen from fig. 2, the two-way communication terminal of the present application does not simply splice the hardware in the two sets of terminals, that is, it is not necessary to set all the hardware of the two sets of terminals in the two-way communication terminal, for example, it is not necessary to set two sets of processors and other processing modules. The two-way communication terminal only slightly improves the radio frequency module, so that two voltage-controlled oscillating circuits are arranged in the radio frequency module, and communication supporting two communication systems is realized on the basis of small hardware change.

It can be understood that, since the two-way communication terminal supports data communication with the first communication system and the second communication system at the same time, it is easy to have a situation where voice signals of both communication systems need to be output at the same time, or a situation where voice signals transmitted to one communication system need to be collected while voice signals of the other communication system are output.

For example, after receiving a voice signal of a first communication system, the two-way communication terminal may output the voice signal, and in the case of outputting the voice signal, if the two-way communication terminal has switched to a communication frequency band corresponding to a second communication system, the two-way communication terminal may receive the voice signal sent by the second communication system to the two-way communication terminal at the same time, and in such a case, two different voice signals may need to be output.

In order to realize the output of the respective voice signals of the two communication systems and respectively collect the voice signals sent to the different communication systems, the two-way communication terminal can be further provided with two voice signal processing basebands. Each path of voice signal processing baseband can be used for realizing the acquisition of voice signals and outputting the received voice signals. Specifically, each voice signal processing baseband comprises a voice acquisition channel and a voice output channel.

For example, referring to fig. 3, a simple schematic diagram of the two-way speech signal processing baseband of the present application is shown.

As shown in fig. 3, the data interface module 310 is connected to two voice collecting channels 320 and two voice outputting channels 330. The data interface module may implement data communication with a Digital Signal Processing (DSP) 340 module.

The voice acquisition channel is used for acquiring local voice signals of the two-way communication terminal. For example, the voice capture channel includes at least a microphone 321 and may also include an audio input interface. The voice output channel includes at least a speaker 331, and may also include an audio output port, etc.

The two voice acquisition channels and the two voice output channels share the data interface module.

The voice signal collected by the microphone in the voice collection channel is transmitted to the data interface module through the audio input interface for coding and encoding, and then transmitted to the DSP module to be modulated to a corresponding time slot for sending, so that a voice baseband uplink channel is formed.

Correspondingly, the voice signal received by the two-way communication terminal is demodulated by the DSP module, decoded by the data interface module and transmitted to the loudspeaker for output, thereby forming a voice baseband downlink channel.

In conjunction with the above description, the data communication method of the present application is described below with reference to a flowchart.

As shown in fig. 4, which shows a flowchart of a data communication method according to the present application, the present embodiment is applied to the aforementioned two-way communication terminal provided with two-way voltage-controlled oscillation circuit, and the present embodiment may include the following steps:

s401, controlling one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot, so that the two-way communication terminal operates at a first communication frequency band corresponding to the first oscillation frequency.

S402, controlling another voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to operate at a second oscillation frequency in a second time slot, so that the two-way communication terminal operates at a second communication frequency band corresponding to the second oscillation frequency.

Wherein the first time slot is different from the second time slot. For example, in a dual-slot system, each slot cycle includes two slots, in which case, the first slot and the second slot may be two adjacent slots in one slot cycle; or may be two time slots in different slot cycles.

It should be noted that the first time slot and the second time slot are both two different time slots, and for convenience of distinction, the time slot in which the two-way communication terminal is in the first communication frequency band is referred to as the first time slot, and the time slot in which the two-way communication terminal is in the second communication frequency band is referred to as the second time slot.

It is to be understood that steps S401 and S402 as described above may be performed a plurality of times since the two-way communication terminal may need to continuously perform data communication with the first communication system as well as the second communication system. Accordingly, the two-way communication terminal can be controlled to be in the first communication frequency band in each of the plurality of first time slots, and correspondingly, the two-way communication terminal can be controlled to be in the second communication frequency band in each of the plurality of second time slots.

The first communication frequency band is a communication frequency band to which the first communication system is applied, and for convenience of distinction, an oscillation frequency band for causing the two-way communication terminal to be in the first communication frequency band is referred to as a first oscillation frequency. Correspondingly, the second communication frequency band is a communication frequency band applicable to the second communication system, and the oscillation frequency corresponding to the second communication frequency band is referred to as a second oscillation frequency.

It can be understood that the first communication system is different from the second communication system, and therefore, the communication frequency bands adopted by the first communication system and the second communication system are also different, and in order to enable the two-way communication terminal to simultaneously support the communication frequency bands of the first communication system and the second communication system, in the embodiment of the present application, the oscillation frequencies of different voltage-controlled oscillation circuits are controlled in a time-division manner by adopting time-division, so that the terminal can communicate with the two communication systems in a time-division manner.

It should be noted that, in the embodiment of the present application, two voltage-controlled oscillation circuits do not set which one of the two voltage-controlled oscillation circuits fixedly supports which communication system, and in practical applications, the voltage-controlled oscillation circuit operating at the first oscillation frequency in the first time slot may be different in different time periods.

For example, the first voltage-controlled oscillation circuit may be controlled to be at the first oscillation frequency in the first time slot and the second voltage-controlled oscillation circuit may be controlled to be at the second oscillation frequency in the second time slot; in another time period, due to different scenes of data communication between the two-way communication system and the two communication systems, the time slot in which the two voltage-controlled oscillation circuits operate may be switched, so that the situation that the first time slot controls the second voltage-controlled oscillation circuit to be at the first oscillation frequency and the situation that the second time slot controls the first voltage-controlled oscillation circuit to be at the second oscillation frequency occurs. And will be described later in connection with a specific scenario.

Therefore, the two-way communication terminal is provided with the two voltage-controlled oscillation circuits, so that the two-way communication terminal can control one voltage-controlled oscillation circuit to work at a first oscillation frequency in a first time slot, and a communication frequency band supported by the two-way communication terminal is a first communication frequency band corresponding to a first communication system; meanwhile, the other voltage-controlled oscillation circuit can be controlled to work at a second oscillation frequency in a second time slot, so that a communication frequency band supported by the two-way communication terminal is a second communication frequency band corresponding to a second communication system, the two-way communication terminal can be utilized to support communication frequency bands of different communication systems in different time slots, and the two-way communication terminal can be further enabled to carry out data communication with communication equipment in two different communication systems in different time slots.

In addition, in the research process, the inventor of the present application finds that one voltage-controlled oscillation circuit can also work at different oscillation frequencies at different times, but in the process of switching the voltage-controlled oscillation circuit from one oscillation frequency to another oscillation frequency, because the frequency locking of the phase-locked loop needs to consume time, the frequency switching delay cannot be caused, and therefore it cannot be ensured that the terminal is in two communication frequency bands through one voltage-controlled oscillation circuit in two adjacent time slots. The two-way communication terminal is provided with the two voltage-controlled oscillation circuits, different voltage-controlled oscillation circuits can be controlled to be at different oscillation frequencies respectively in different time slots, the situation that one voltage-controlled oscillation circuit needs to be switched from one oscillation frequency to another oscillation frequency in the same time slot cannot occur, the time delay caused by switching one voltage-controlled oscillation circuit from one oscillation frequency to another oscillation frequency is avoided, and therefore the terminal can be guaranteed to be stably located in a communication frequency band in each time slot.

It is understood that the two-way communication terminal may be in a standby state in a case where the two-way communication terminal does not receive the signal transmission instruction and does not receive the voice signal of the first communication system or the second communication system. The standby state may be understood as a state in which no voice signal is currently processed in the two-way communication terminal. Under the condition, the two-way communication terminal can continuously switch the two voltage-controlled oscillating circuits to be at different oscillating frequencies in time slots. For example, referring to fig. 5, a schematic flow chart of a data communication method according to the present application is shown, where the flow takes an implementation that a two-way communication terminal switches a communication frequency band in a standby state as an example, and the embodiment includes:

s501, when the two-way communication terminal is in a standby state, one of the two voltage-controlled oscillation circuits is controlled to operate at a first oscillation frequency in the first time slot group, and the one voltage-controlled oscillation circuit is set to be in a signal receiving state.

Wherein the first time slot group comprises one first time slot or at least two adjacent first time slots.

S502, when the two-way communication terminal is in a standby state, controlling another voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to operate at a second oscillation frequency in a second timeslot group, and setting the another voltage-controlled oscillation circuit in a signal receiving state.

The second time slot group comprises one second time slot or at least two adjacent second time slots, and the first time slot group is adjacent to the second time slot group.

The first time slot group is adjacent to the second time slot group, which means that the last first time slot in the first time slot group is adjacent to the first second time slot in the second time slot group. Alternatively, the last second time slot in the second time slot group is adjacent to the first time slot in the first time slot group.

Wherein the number of first slots in the first slot group may be the same as the number of second slots in the second slot group. That is to say, every set number of time slots, one voltage-controlled oscillation circuit is switched to another voltage-controlled oscillation circuit, and the oscillation frequencies of the two voltage-controlled oscillation circuits are different.

It can be understood that, when the two-way communication terminal is in the standby state, in order to ensure that the two-way communication terminal can receive the voice signals sent by the first communication system and the second communication system, it is necessary to control the two-way communication terminal in different communication frequency bands in time slots.

For example, for any two adjacent time slots, a voltage-controlled oscillation circuit may be controlled to be at a first oscillation frequency in a first time slot of the two adjacent time slots, so that the terminal is at a communication frequency corresponding to the first communication system, and thus the terminal may receive a voice signal sent by the first terminal of the first communication system; in the next time slot, the other voltage-controlled oscillation circuit is controlled to be at the second oscillation frequency, so that the proper terminal can receive the voice signal of the second communication system, and the process is repeated.

For another example, a TDMA mechanism is adopted as an example, since the TDMA is two time slots, in order to reduce signal omission, a voice signal of a communication frequency band can be detected through a voltage-controlled oscillation circuit at the two time slots; then, two adjacent time slots after the two time slots detect a voice signal of another communication band through another path. As shown in fig. 6, a diagram illustrating a two-way communication terminal slotted in two different communication frequency bands in a standby state is shown.

The numbers "1" and "2" in the square in fig. 6 each represent a time slot.

As can be seen from fig. 6, every two adjacent time slots are a time slot group, and in fig. 6, the first two time slots control one voltage-controlled oscillation circuit to be at the first oscillation frequency, so as to control the communication frequency band of the two-way communication terminal to be at the first communication frequency band F1; and in the next third and fourth time slots, switching to another voltage-controlled oscillating circuit, and controlling the another voltage-controlled oscillating circuit to be at the second oscillating frequency, so that the two-way communication terminal is controlled to be in the second communication frequency band F2, and then continuously cycling in sequence, thereby realizing that the two-way communication terminal is controlled to be switched from one communication frequency band to another communication frequency band in every two time slots.

On the basis, under the condition that one voltage-controlled oscillation circuit works at the first oscillation frequency in the first time slot group, if the first terminal of the first communication system sends a voice signal to the two-way communication terminal, the two-way communication terminal can directly output the received voice signal through the voice output channel. Correspondingly, under the condition that the other path of voltage-controlled oscillating circuit works at the second oscillating frequency in the second time slot group, if the two-path oscillating circuit receives a voice signal sent by a second terminal of the second communication system, the voice signal can be output through the voice output channel.

It is understood that the time interval between any two slot groups is short, and if a voice signal is received in both of the two adjacent slot groups, it is likely that the two-way communication terminal is outputting a voice signal of one communication system, and a voice signal of the other communication system cannot be output in time. For example, if each time slot group includes only one time slot, the two-way communication terminal may receive the voice signal transmitted from the second terminal of the second communication system in the next time slot after receiving the voice signal transmitted from the first terminal of the first communication system in one time slot, so that the two-way communication terminal receives the voice signals transmitted from the two communication systems at approximately the same time.

In order to ensure that the two-way communication terminal can simultaneously and respectively output the voice signals of different communication systems, in this embodiment of the application, under the condition that any one of the first time slots in the first time slot group receives the first voice signal sent by the first terminal of the first communication system to the two-way communication terminal through the first communication frequency band, the first voice signal is output through one path of the voice output channel. Correspondingly, when any second time slot in the second time slot group receives a second voice signal sent by the second terminal of the second communication system to the two-way communication terminal through the second communication frequency band, the second voice signal is output through the other one of the voice output channels.

For the convenience of distinguishing, the voice signal sent by the first communication system to the two-way communication terminal is called a first voice signal; and a voice signal transmitted from the second communication system to the two-way communication terminal is referred to as a second voice signal.

With the above, according to the scheme of the application, the two-way communication terminal can have the capability of receiving and playing the voice signals of the first communication system and the second communication system.

Similar to the relationship between the voltage-controlled oscillation circuit and the communication system, each voice output channel is not bound to a certain communication system, and only one voice output channel is required to be corresponding to one communication system at different times. For example, when a first voice output channel of the two voice output channels is outputting a voice signal sent by the first communication system at a certain time, and when a voice signal sent by the second communication system is received, the voice signal of the second communication system is output through a second voice output channel of the two voice output channels.

It can be understood that after the two-way communication terminal receives the voice signal transmitted by any one of the communication systems, the two-way communication terminal may still maintain the flow of the embodiment of fig. 5 to control the two-way communication terminal to be in different communication frequency bands respectively in any two adjacent time slot groups.

It can be understood that, in order to ensure that the two-way communication terminal has the capability of sending the voice signal to the first communication system and sending the voice signal to the second communication system at the same time, in this embodiment of the application, the two-way communication terminal may receive a voice call request initiated by a user to the first communication system and the second communication system.

The user of the two-way communication terminal can only initiate a voice call request to one communication system at a time, and can also initiate a voice call request for calling the first communication system and the second communication system simultaneously. This is described in the following cases.

As shown in fig. 7, which shows a schematic flow chart of another embodiment of the data communication method according to the present application, the embodiment may include:

s701, when it is detected that a first voice call request is initiated to a first terminal of the first communication system, determining one of the two voltage-controlled oscillation circuits that does not operate at a second oscillation frequency, and controlling the first voltage-controlled oscillation circuit to operate at a first oscillation frequency in a first time slot, so that the two-way communication terminal is in a first communication frequency band.

Wherein, the first time slot is a time slot which is nearest after the initiation time of the first voice call request.

For the sake of convenience of distinction, a voice call request initiated by the two-way communication terminal to the first communication system is referred to as a first voice call request, and a voice call request initiated by the two-way communication terminal to the second communication system is referred to as a second voice call request.

It can be understood that, in order to ensure that the two-way communication terminal can transmit the voice signal to the first communication system, in the next timeslot after the time of initiating the first voice call request, the one-way voltage controlled oscillation circuit is controlled to operate at the first oscillation frequency, so that the two-way communication terminal is in the first communication frequency band corresponding to the first communication system.

However, because the two-way communication terminal continuously switches the two-way voltage-controlled oscillation circuit to operate in the adjacent time slot group in the standby state, the communication frequency band in which the two-way communication terminal is located may be in the first communication frequency band or the second communication frequency band in the time slot corresponding to the time when the two-way communication terminal initiates the first voice call request. If the two-way communication terminal is just in the first communication frequency band, it indicates that one voltage-controlled oscillation circuit works at the first oscillation frequency in the time slot, and under the condition, the voltage-controlled oscillation circuit can still be controlled to be at the first oscillation frequency in the next time slot of the time slot; or in the next time slot of the time slot, controlling another voltage-controlled oscillation circuit to be at the first oscillation frequency so as to ensure that the two-way communication terminal is at the first communication frequency band in the next time slot of the time slot, so as to respond to the voice call request and send the voice signal to the first terminal of the first communication system.

If the two-way communication terminal is in the second communication frequency band in the time slot corresponding to the moment when the two-way communication terminal initiates the first voice call request, it indicates that one voltage-controlled oscillation circuit works at the second oscillation frequency. In this case, in order to avoid the aforementioned delay caused by the same voltage-controlled oscillation circuit switching different oscillation frequencies, the present application needs to control another voltage-controlled oscillation circuit that is not at the second oscillation frequency in the time slot (if it is assumed that the one voltage-controlled oscillation circuit that operates at the second oscillation frequency in the front is the first voltage-controlled oscillation circuit, the other voltage-controlled oscillation circuit is the second voltage-controlled oscillation circuit) to operate at the first oscillation frequency in the next time slot after the time slot.

Optionally, in consideration that after the two-way communication terminal receives the first voice call request, it needs to send a voice signal to the first communication system, so that while controlling the first voltage-controlled oscillation circuit to operate at the first oscillation frequency in the first time slot, the first voltage-controlled oscillation circuit may be set to be in a signal transmission state.

S702, a path of the third voice signal collected by the voice collecting channel is obtained, and the third voice signal is transmitted to the first terminal through the first voltage-controlled oscillating circuit.

This step S702 is an optional step, i.e. after initiating the first voice call request, the two-way communication terminal may collect and send the voice signal to the first terminal of the first communication system. For the sake of convenience of distinction, the voice signal collected for the first voice call request is referred to as a third voice signal, and correspondingly, the voice signal collected for the second voice call request is referred to as a fourth voice signal.

It can be understood that, in order to adapt to the voice interaction of the two communication systems, the two-way communication terminal is provided with two voice acquisition channels, wherein, at the same time, one channel is used for acquiring the voice signal input by the first communication system, and the other channel is used for acquiring the voice signal input by the second communication system.

Of course, each voice acquisition channel is not fixedly bound to a certain communication system, and the communication systems corresponding to the voice acquisition channels at different times are different.

S703, when it is detected that a second voice call request is initiated to a second terminal of the second communication system, determining one of the two voltage-controlled oscillation circuits that does not operate at the first oscillation frequency, and controlling the second voltage-controlled oscillation circuit to operate at the second oscillation frequency in a second time slot, so that the two-way communication terminal is in a second communication frequency band.

Wherein, the second time slot is a time slot nearest after the initiation time of the second voice call request.

It is understood that the time when the two-way communication terminal initiates the call request to the first communication system may or may not be adjacent to the time when the two-way communication terminal initiates the call request to the second communication system. For example, after a two-way communication terminal initiates a voice call request to a first communication system, it may return to a standby state and then may initiate a voice call request to a second communication system at a long interval. It can be seen that, in this embodiment, the first time slot and the second time slot may be two adjacent time slots, or may be two time slots spaced far apart.

Similar to the previous step S701, after the two-way communication terminal detects the second voice call request to the second communication system, the two-way communication terminal needs to determine a voltage-controlled oscillation circuit that is not currently operating at the first oscillation frequency, and control the voltage-controlled oscillation circuit to be at the second oscillation frequency in the next timeslot nearest after receiving the second voice call request, so as to ensure that the terminal is in the second communication frequency band corresponding to the second communication system in the next timeslot after receiving the second voice call request.

Optionally, similar to step S701, while controlling the first voltage-controlled oscillation circuit to operate at the first oscillation frequency in the first time slot, the first voltage-controlled oscillation circuit may be set to be in a signal transmission state.

S704, obtain another fourth voice signal collected by the voice collecting channel, and transmit the fourth voice signal to the second terminal through the second voltage-controlled oscillating circuit.

Similar to step S702, in order to collect the voice signal transmitted to the second communication system, a fourth voice signal may be collected through another voice collecting channel and transmitted to the second terminal of the second communication system. The other voice acquisition channel can be understood as a voice acquisition channel which does not acquire the third voice signal at the current moment.

As can be seen from the embodiment of fig. 7, the two-way communication terminal of the present application can implement both initiating a voice call and sending a voice signal to the first communication system and sending a voice signal to the second communication system, thereby implementing sending a voice signal to two communication systems through one terminal.

As shown in fig. 8a, it shows a schematic diagram of an application scenario corresponding to the scheme of fig. 7. The frequency band corresponding to the time slot in a period of time and the signal transmission or reception state are taken as an example for explanation in this scenario. In fig. 8, taking a scenario in which the two-way communication terminal transmits voice signals to the first communication system and the second communication system respectively in any two adjacent time slots as an example, as shown in fig. 8a, when the first time slot from left to right, i.e., the first time slot 1, is in the first communication frequency band F1, so that the two-way communication terminal can transmit voice signals to the first terminal of the first communication system; in the second time slot from left to right, i.e., the first time slot 2, the two-way communication terminal is in the second communication band F2 and transmits a voice signal to the second terminal of the second communication system. Correspondingly, the subsequent time slot 1 is in the first communication frequency band F1, and sends a voice signal to the first communication system; and time slots 2 are all in the second communication band F2 and transmit voice signals to the second communication system.

Of course, fig. 8a is only a case where the two-way communication terminal continuously transmits the voice signal to the first communication system and the second communication system, and in practical applications, the two-way communication terminal may also initiate the voice signal to the second communication system after transmitting the voice signal to the first communication system in one time slot, or transmit the voice signal to the first communication system after transmitting the voice signal to the second communication system in several time slots.

Accordingly, fig. 7 is only for explaining a scenario in which the two-way communication terminal transmits the voice signals to the two communication systems, but it is understood that the two-way communication terminal may transmit the voice signals to the two communication systems or may receive the voice signals transmitted by the two voice communication systems. That is, in practical applications, the terminal may continuously switch between the standby state, the voice signal transmission state, and the like, which are involved in the embodiments of fig. 5 and fig. 7.

Fig. 8b is a schematic diagram of a data communication method of a two-way communication terminal in an application scenario.

From fig. 8b, it is assumed that the sequence of the time slots is also from left to right, as in fig. 8a, this fig. 8b is also only the time slots within a period of time, and in this fig. 8b, in the first time slot, i.e. the first time slot 1, the two-way communication terminal is in the second communication frequency band F2 and is in the signal receiving state to receive the voice signal of the second communication system; in the second time slot from left to right, i.e., the first time slot 2, the two-way communication terminal is in the first communication band F1 and is in a signal transmission state to transmit a voice signal to the first communication band. In this short period of time, the following time slots are analogized in turn, and of course, in practical application, the state of the two-way communication terminal transmitting or receiving the voice signal to a certain communication system may last for one time slot or may last for a plurality of time slots, and fig. 8b is only a simple example and is not limited.

The following describes a two-way communication terminal simultaneously transmitting voice signals to two communication systems. Here, sending the voice signals to the two communication systems at the same time means that the voice signals input to the two-way communication terminal by the user are sent to the terminals of the first communication system and the second communication system, so that the voice sending to the two communication systems can be completed by one voice input of the user. For example, referring to fig. 9, which shows another flowchart of the data communication method of the present application, the method of the present embodiment may include:

s901, receiving a third voice call request initiated to the first terminal of the first communication system and the second terminal of the second communication system.

Wherein the third voice call request is for requesting to simultaneously transmit a voice signal to the first terminal of the first communication system and the second terminal of the second communication system.

And S902, collecting the voice signal input by the user in response to the third voice call request.

The collected voice signals are voice signals to be sent to the first communication system and the second communication system.

It is understood that the step may be performed before step S903, or may be performed while step S903 controls one path of voltage controlled oscillation to operate at the first oscillation frequency, and the step S902 is performed.

S903, in response to the third voice call request, controls a channel of voltage-controlled oscillation circuit to operate at a first oscillation frequency in the first time slot, and transmits the voice signal to the first terminal through the channel of voltage-controlled oscillation circuit.

In this embodiment, the first timeslot may be a closest timeslot after the third voice call request is received.

For example, in the case of switching the communication frequency band according to the embodiment of fig. 4 in the standby state of the two-way voltage-controlled oscillation circuit, one way of the first voltage-controlled oscillation circuit that does not operate at the second oscillation frequency may be determined from the two ways of the voltage-controlled oscillation circuits, and the first voltage-controlled oscillation circuit is controlled to operate at the first oscillation frequency in the first time slot, so that the two-way communication terminal is in the first communication frequency band.

Optionally, when one voltage-controlled oscillation circuit is controlled to be in the first oscillation frequency, the voltage-controlled oscillation circuit can be set to be in a signal transmission state.

And S904, in response to the third voice call request, controlling another path of voltage-controlled oscillation circuit to operate at the second oscillation frequency in the second timeslot, and transmitting the voice signal to the second terminal through the another path of voltage-controlled oscillation circuit.

The second time slot is a time slot immediately after the first time slot. That is, after the voice signal is transmitted to the first terminal of the first communication system in the previous time slot, in order to simultaneously transmit the voice signal to the second terminal of the second communication system, the other voltage-controlled oscillation circuit is controlled to be at the second oscillation frequency in the next time slot, so that the two-way communication terminal is in the second communication frequency band.

If, in step S903, the time slot 1 controls the first voltage-controlled oscillation circuit in the two-way communication terminal to be at the first communication frequency, and the next time slot after the time slot 1 needs to control the second voltage-controlled oscillation circuit to be at the second communication frequency, where the first voltage-controlled oscillation circuit and the second voltage-controlled oscillation circuit belong to different voltage-controlled oscillation circuits in the two-way voltage-controlled oscillation circuit respectively.

Optionally, the other voltage-controlled oscillation circuit may be set to be in a signal transmission state while controlling the other voltage-controlled oscillation circuit to be in the second oscillation frequency.

It can be seen that, by means of the embodiment of fig. 9, the two-way communication terminal can simultaneously transmit the voice signal to the first communication system and the second communication system, so that the user can input the voice signal to the two-way communication terminal and transmit the voice signal to two different communication systems.

In the embodiment of the present application, since the two-way communication terminal can connect two different communication systems, the two-way communication terminal can also serve as a gateway device for the two communication systems, so that the voice signal passing through the two-way communication terminal is forwarded from one communication system to the other communication system.

Specifically, the two-way communication terminal starts the gateway function after receiving a gateway start instruction input by the user. In this case, the two-way communication terminal may monitor the voice signals received by the two voltage-controlled oscillation circuits, for example, because the two-way communication terminal may receive the voice signals sent by the two voltage-controlled oscillation circuits in a standby state, it may monitor which communication system sends the voice signals. Correspondingly, when a voice signal of one communication system is received through one path of voltage-controlled oscillation circuit, the other path of voltage-controlled oscillation circuit is controlled to be at the oscillation frequency corresponding to the other communication system in the latest time slot after the current time slot, and the received voice signal is forwarded to the terminal of the other communication system.

Alternatively, considering that the clocks of the two communication systems may not be the same, in case that one communication system is a communication system including a base station, it is necessary to keep the clocks of the two communication systems synchronized, so that the two-way communication system can forward the signal of one communication system to the other communication system and so that the terminals of the two communication systems can recognize the voice signal therebetween.

For example, referring to fig. 10, which shows another flowchart of a data communication method according to the present application, in this embodiment, the first communication system at least includes at least one base station and at least one first terminal. For example, the first communication system may be a cluster system and the second communication system may be a pass-through system. The embodiment may include:

s1001, when the two-way communication terminal is in a standby state, controls one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in the first time slot group, and sets the one voltage-controlled oscillation circuit in a signal receiving state.

Wherein the first time slot group comprises one first time slot or at least two adjacent first time slots;

and S1002, when the two-way communication terminal is in a standby state, controlling the other one of the two voltage-controlled oscillation circuits to work at a second oscillation frequency in a second time slot group, and setting the other one of the two voltage-controlled oscillation circuits to be in a signal receiving state.

The above two steps S1001 and S1002 can refer to the related description of the previous embodiment, and are not described herein again.

S1003, receiving the clock synchronization signal broadcasted by the base station of the first communication system in the first time slot through the one path of voltage controlled oscillation circuit.

And S1004, controlling the another path of voltage-controlled oscillation circuit to operate at a second oscillation frequency in a latest time slot after receiving the clock synchronization signal, and broadcasting the clock synchronization signal to the second communication system through the another path of voltage-controlled oscillation circuit, so as to synchronize clocks among the first communication system, the second communication system, and the two-way communication terminal.

If it is assumed that the two voltage-controlled oscillation circuits are a first voltage-controlled oscillation circuit and a second voltage-controlled oscillation circuit respectively, if the first voltage-controlled oscillation circuit is at a first oscillation frequency in the first time slot group and the second voltage-controlled oscillation circuit is at a second oscillation frequency in the second time slot group, it may be monitored whether the first voltage-controlled oscillation circuit receives a clock synchronization signal broadcast by a base station of the first communication system in the first time slot group; if so, step S1004 needs to be executed to complete clock synchronization between different communication systems based on the clock synchronization signal.

Accordingly, if the clock synchronization signal of the first communication system is not received in the first time slot, the steps S1001 and S1002 are repeated continuously, and the monitoring is continued in each first time slot.

For example, as shown in fig. 11, in the signal synchronization process, the oscillation frequency bands of the two voltage-controlled oscillation circuits are still switched continuously in the manner shown in fig. 6, that is, every two time slots are a time slot group, each time slot group may include a time slot 1 and a time slot 2, and the first time slot group from left to right in fig. 6 controls one voltage-controlled oscillation circuit to be at the first oscillation frequency and may receive the synchronization clock signal of the first communication system. And switching to the voltage-controlled oscillating circuit at every subsequent time slot group, controlling the voltage-controlled oscillating circuit to work at the first oscillating frequency and receiving signals of the first communication system.

On the basis, if the synchronous clock signal of the first communication system is detected in the first time slot, the other voltage-controlled oscillating circuit is controlled to be at the second oscillating frequency in the next time slot after the first time slot of the synchronous clock signal is received, and the synchronous clock signal is broadcasted to the second communication system through the other voltage-controlled oscillating circuit. As shown in fig. 11, when the synchronous clock signal of the first communication system is received in the first time slot from left to right, i.e., the first time slot 1, the synchronous clock signal is broadcasted to the second communication system in the second time slot, i.e., the first time slot 2. Then, the next time slot group after the synchronous clock signal is broadcast to the second communication system may be used as the first time slot group to control one voltage-controlled oscillation circuit to be at the first oscillation frequency, and the communication frequency band may be switched according to the communication frequency band corresponding to each time slot in "synchronous clock detection" in fig. 11.

Optionally, after receiving the synchronous clock signal, the two-way communication terminal may further start a periodic broadcast timer, and when detecting that the timer is out of time, the two-way communication terminal may send the latest received synchronous clock signal to the second communication system again.

Accordingly, if the two-way communication terminal detects that the synchronous clock signal is lost or cannot maintain clock synchronization with the first communication system for other reasons, it is still necessary to continue the operation related to the detection of the synchronous clock signal.

S1005, receiving a gateway start instruction input by the user.

The gateway starting instruction is used for controlling the two-way communication terminal to be in a gateway state so as to forward voice signals between the first communication system and the second communication system through the two-way communication terminal.

And S1006, in response to the gateway start instruction, monitoring the voice signals received by the two voltage-controlled oscillating circuits.

S1007, when the first timeslot receives the fifth voice signal sent by the first terminal of the first communication system through one path of voltage-controlled oscillation circuit, controlling the another path of voltage-controlled oscillation circuit to operate at the second oscillation frequency in the latest timeslot after receiving the fifth voice signal, and sending the fifth voice signal to the second terminal of the second communication system through the another path of voltage-controlled oscillation circuit.

It can be understood that, since the two-way communication terminal operates in the first communication frequency band in each first time slot of the first time slot group, only the voice signal from the first communication system received by the voltage-controlled oscillation circuit operating at the first oscillation frequency can be received in the first time slot. For the sake of convenience of distinction, in this embodiment, the voice signal transmitted by the first communication system is referred to as a fifth voice signal.

It can be understood that, when the fifth voice signal is received, one voltage-controlled oscillation circuit is working at the first oscillation frequency. Therefore, in order to forward the fifth voice signal to the second terminal of the second communication system, it is necessary to control another path of the voltage-controlled oscillation circuit to operate at the second oscillation frequency in the next timeslot after receiving the fifth voice signal, and forward the fifth voice signal to the second terminal of the second communication system through the another path of the voltage-controlled oscillation circuit.

S1008, when the second timeslot receives a sixth voice signal sent by the second terminal through the another path of voltage-controlled oscillation circuit, controlling the one path of voltage-controlled oscillation circuit to operate at the first oscillation frequency in a latest timeslot after receiving the sixth voice signal, and sending the sixth voice signal to the first terminal of the first communication system through the one path of voltage-controlled oscillation circuit.

Similarly to step S1007, a voice signal from the second terminal of the second communication system received through another voltage-controlled oscillation circuit in the second time slot is referred to as a sixth voice signal. Correspondingly, after receiving the sixth voice signal, one voltage-controlled oscillation circuit except the other voltage-controlled oscillation circuit needs to be controlled to operate at the second oscillation frequency in the next time slot, and forwarding of the sixth voice signal to the first communication system is achieved.

It can be seen that, by the scheme of the embodiment of fig. 10, the two-way communication terminal of the present application can implement communication between two different communication systems, so as to forward the voice signal of one communication system to the other communication system.

It can be understood that, in the several embodiments of fig. 5 to fig. 10 above in the present application, the terminal may perform several application scenarios at different times, and in practical applications, the two-way communication terminal may perform relevant operations of the above several scenarios at different times, so that the two-way communication terminal may respectively implement interaction of voice signals with two communication systems, and may be used as a gateway device to implement forwarding of voice signals between the two communication systems.

For convenience of understanding, the first communication system is taken as a trunking communication system, and the second communication system is taken as a direct communication system as an example. For convenience of introduction, the voltage-controlled oscillation circuit operating at the first oscillation frequency is referred to as a first voltage-controlled oscillation circuit, and the voltage-controlled oscillation circuit operating at the second oscillation frequency is referred to as a second voltage-controlled oscillation circuit. Of course, the voltage-controlled oscillation circuits operating at the first oscillation frequency at different times may not be the same, and correspondingly, the voltage-controlled oscillation circuits operating at the second oscillation frequency at different times may not be the same.

Similarly, a voice acquisition channel for acquiring a voice signal for the trunking communication system in the two-way communication terminal is referred to as a first voice acquisition channel, and a voice output channel for outputting a voice signal of the trunking communication system is referred to as a first voice output channel. Accordingly, a voice acquisition channel corresponding to the direct communication system is referred to as a second voice acquisition channel, and a voice output channel outputting a voice signal of the direct communication system is referred to as a second voice output channel.

For example, referring to fig. 12, which shows another schematic flow chart of a data communication method of the present application, the method of the present embodiment may include:

1201, when the two-way communication terminal is in a standby state, the first voltage controlled oscillation circuit is controlled to operate at a first oscillation frequency in the first time slot group and set in a signal receiving state, and the second voltage controlled oscillation circuit is controlled to operate at a second oscillation frequency in the second time slot group and set in a signal receiving state.

Wherein the first time slot group comprises one first time slot or at least two adjacent first time slots. The second time slot group comprises one second time slot or at least two adjacent second time slots, and the first time slot group is adjacent to the second time slot group.

In this embodiment, a time slot corresponding to the first voltage controlled oscillation circuit is referred to as a first time slot, and a time slot corresponding to the second voltage controlled oscillation circuit is referred to as a second time slot. For example, in the standby state, the first voltage controlled oscillator circuit may be controlled to operate, and the second time slot may be controlled to operate the second voltage controlled oscillator circuit.

S1202, detecting whether the first path of voltage-controlled oscillation circuit receives a clock synchronization signal of the trunking communication system in the first time slot.

S1203, controlling the second voltage-controlled oscillation circuit to operate at a second oscillation frequency in a latest timeslot after receiving the clock synchronization signal, and broadcasting the clock synchronization signal to the direct communication system through the second voltage-controlled oscillation circuit, so as to synchronize clocks among the trunking communication system, the direct communication system, and the two-way communication terminal.

S1204, when the first time slot receives a first voice signal transmitted by a first terminal in the trunking communication system, outputting the first voice signal through a first voice output channel.

And S1205, when the second time slot receives the second voice signal sent by the second terminal of the direct communication system, outputting the second voice signal through the second voice output channel.

S1206, when detecting that the first voice call request is initiated to the first terminal of the trunking communication system, controls, from the first voltage-controlled oscillation circuit that is determined not to operate at the second oscillation frequency, a nearest timeslot of the first voltage-controlled oscillation circuit after the initiation time of the first voice call request to operate at the first oscillation frequency, and sends, to the first terminal, the third voice signal acquired by the first voice acquisition channel through the first voltage-controlled oscillation circuit.

Here, one voltage-controlled oscillation circuit which does not work at the second oscillation frequency is used as the first voltage-controlled oscillation circuit.

S1207, when it is detected that a second voice call request is initiated to a second terminal of the direct communication system, controlling, from a second voltage-controlled oscillation circuit that is determined not to operate at the first oscillation frequency, the second voltage-controlled oscillation circuit to operate at a second oscillation frequency in a latest timeslot after an initiation time of the second voice call request, and transmitting, to the second terminal, a fourth voice signal acquired by a second voice acquisition channel through the second voltage-controlled oscillation circuit.

Here, one voltage-controlled oscillation circuit which does not work at the first oscillation frequency is used as the second voltage-controlled oscillation circuit.

It is to be understood that the sequence of steps S1206 and S1207 is not limited to that shown in fig. 12, and the two steps are performed in different orders due to different times of initiation of the first voice call request and the second voice call request.

It is to be understood that after any one of steps S1206 and S1207, if the voice signal transmitted to the trunking communication system or the pass-through communication system is completed, the standby state may be resumed, thereby repeating the relevant control steps in the standby state.

S1208, after receiving a third voice call request initiated to the first terminal of the trunking communication system and the second terminal of the direct communication system, acquiring a local voice signal input by the user.

For the sake of distinction, the voice signal collected by the user input of the two-way communication terminal is referred to as a local voice signal.

S1209, in response to the third voice call request, controlling the first voltage controlled oscillator to operate at the first oscillation frequency in a last timeslot after the current time, and transmitting the local voice signal to the first terminal through the first voltage controlled oscillator, and controlling the second voltage controlled oscillator to operate at the second oscillation frequency in a next timeslot after the last timeslot, and transmitting the local voice signal to the second terminal through the second voltage controlled oscillator.

Wherein, the last time slot after the current time is the last time slot after the third voice call request is received.

It is understood that the present embodiment is described by taking an example in which the first voltage-controlled oscillation circuit is controlled to operate at the first oscillation frequency in the last timeslot after the third voice call request is received, and the local voice signal is transmitted to the first terminal of the trunking communication system first. However, it may also be that the second voltage-controlled oscillation circuit is controlled to operate at the second oscillation frequency and transmit the local voice signal to the second terminal of the direct communication system at the latest timeslot after receiving the third voice call request, and then the first voltage-controlled oscillation circuit is controlled to operate at the first oscillation frequency at the next timeslot so as to transmit the local voice signal to the first terminal of the trunking communication system.

And S1210, after receiving a gateway starting instruction input by a user, monitoring voice signals received by the first voltage-controlled oscillating circuit and the second voltage-controlled oscillating circuit.

S1211, when the first timeslot receives, through the first voltage-controlled oscillation circuit, the fifth voice signal sent by the first terminal of the trunking communication system, controls the second voltage-controlled oscillation circuit to operate at the second oscillation frequency in a latest timeslot after receiving the fifth voice signal, and sends, through the second voltage-controlled oscillation circuit, the fifth voice signal to the second terminal of the through communication system.

S1212, when the second timeslot receives, through the second voltage-controlled oscillation circuit, a sixth voice signal sent by the second terminal of the direct communication system, controls the first voltage-controlled oscillation circuit to operate at the first oscillation frequency in a latest timeslot after receiving the sixth voice signal, and sends, through the first voltage-controlled oscillation circuit, the sixth voice signal to the first terminal of the trunking communication system.

The sequence of steps S1211 and S1212 is related to the sequence of receiving the fifth voice signal and the sixth voice signal, and is not limited by the sequence shown in fig. 12.

Correspondingly, in practical application, the sequence of the initiation time of the third voice call request and the initiation time of the gateway activation instruction may be different according to the receiving time of the first voice signal, the receiving time of the second voice signal, the initiation time of the first voice call request, the initiation time of the second voice call request, and the initiation time of the third voice call request, so that the sequence of steps S1204, S1205, S1206, S1207, S1208, S1209, S1210, S1211, and S1212 may be interchanged among different steps, and is not limited to the sequence shown in fig. 12.

The application also provides a data communication device corresponding to the data communication method. Fig. 13 is a schematic diagram showing a configuration of a data communication apparatus according to the present application, which is applied to a two-way communication terminal provided with a two-way voltage-controlled oscillation circuit. The device in this embodiment includes:

the first communication control unit 1301 is configured to control one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot, so that the two-way communication terminal operates at a first communication frequency band corresponding to the first oscillation frequency;

a second communication control unit 1302, configured to control another voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to operate at a second oscillation frequency in a second time slot, so that the two-way communication terminal operates at a second communication frequency band corresponding to the second oscillation frequency;

In one possible case, the first communication control unit includes:

the second communication control unit includes:

Optionally, the two-way communication terminal includes two voice output channels;

the apparatus may further include:

a first signal receiving unit, configured to output a first voice signal through one of the voice output channels when a first timeslot group receives a first voice signal sent by a first terminal of the first communication system to the two-way communication terminal through the first communication frequency band after the first standby control unit controls one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in the first timeslot group;

and the second signal receiving unit is used for outputting the second voice signal through the voice output channel under the condition that the second terminal of the second communication system receives the second voice signal sent to the two-way communication terminal through the second communication frequency band in the second time slot after the second standby control unit controls the other voltage-controlled oscillation circuit in the two voltage-controlled oscillation circuits to work at the second oscillation frequency in the second time slot group.

In yet another possible case, the first communication control unit includes:

the first call control unit is used for determining one path of first voltage-controlled oscillation circuit which does not work at a second oscillation frequency from two paths of voltage-controlled oscillation circuits under the condition that a first voice call request is detected to be initiated to a first terminal of the first communication system, and controlling the first voltage-controlled oscillation circuit to work at the first oscillation frequency in a first time slot so as to enable the two-path communication terminal to work at a first communication frequency band corresponding to the first oscillation frequency; the first time slot is a nearest time slot after the initiation moment of the first voice call request;

the second communication control unit includes:

the second call control unit is configured to, when it is detected that a second voice call request is initiated to a second terminal of the second communication system, determine one path of the second voltage-controlled oscillation circuit that does not operate at the first oscillation frequency from the two paths of voltage-controlled oscillation circuits, and control the second voltage-controlled oscillation circuit to operate at a second oscillation frequency in a second time slot, so that the two-path communication terminal operates in a second communication frequency band corresponding to the second oscillation frequency, where the second time slot is a closest time slot after an initiation time of the second voice call request.

Optionally, the two-way communication terminal includes two voice acquisition channels;

the apparatus may further include:

and the first voice transmission unit is used for acquiring a path of third voice signals acquired by the voice acquisition channel after the first call control unit controls the first voltage-controlled oscillation circuit to work at a first oscillation frequency in a first time slot, and transmitting the third voice signals to the first terminal through the first voltage-controlled oscillation circuit.

And the second voice transmission unit is used for acquiring another path of fourth voice signal acquired by the voice acquisition channel after the second call control unit controls the second voltage-controlled oscillation circuit to work at a second oscillation frequency in a second time slot, and transmitting the fourth voice signal to the second terminal through the second voltage-controlled oscillation circuit.

In yet another possible implementation manner, the apparatus may further include:

the call receiving unit is used for receiving a third voice call request initiated to a first terminal of a first communication system and a second terminal of a second communication system before the first communication control unit controls one path of voltage-controlled oscillation circuit in the two paths of voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot;

a voice collecting unit for collecting a voice signal input by a user in response to the third voice call request;

the first communication control unit includes:

a third voice transmission unit, configured to respond to the third voice call request, control a path of voltage-controlled oscillation circuit to operate at a first oscillation frequency in a first time slot, and transmit the voice signal to the first terminal through the path of voltage-controlled oscillation circuit;

the second communication control unit includes:

and the fourth voice transmission unit is used for responding to the third voice call request, controlling another path of voltage-controlled oscillation circuit to work at a second oscillation frequency in a second time slot and transmitting the voice signal to the second terminal through the another path of voltage-controlled oscillation circuit, wherein the second time slot is a time slot which is next to and next to the first time slot.

Optionally, in the above apparatus embodiment, the apparatus may further include:

the command receiving unit is used for receiving a gateway starting command input by a user after the first standby control unit controls one voltage-controlled oscillation circuit of the two voltage-controlled oscillation circuits to work at a first oscillation frequency in a first time slot group and sets the voltage-controlled oscillation circuit to be in a signal receiving state;

the receiving monitoring unit is used for responding to the gateway starting instruction and monitoring the voice signals received by the two voltage-controlled oscillating circuits;

the first voice forwarding unit is configured to, when a fifth voice signal sent by the first terminal is received by the first time slot through the one-way voltage-controlled oscillation circuit, control the other-way voltage-controlled oscillation circuit to operate at a second oscillation frequency in a latest time slot after the fifth voice signal is received, and send the fifth voice signal to a second terminal of the second communication system through the other-way voltage-controlled oscillation circuit;

and the second voice forwarding unit is used for controlling one path of voltage-controlled oscillation circuit to work at a first oscillation frequency in the latest time slot after receiving the sixth voice signal under the condition that the second time slot receives the sixth voice signal sent by the second terminal through the other path of voltage-controlled oscillation circuit, and sending the sixth voice signal to the first terminal of the first communication system through the one path of voltage-controlled oscillation circuit.

Optionally, the first communication system includes a base station and at least one first terminal;

the device also includes:

a clock receiving unit, configured to receive, through the one path of voltage-controlled oscillation circuit, a clock synchronization signal broadcast by a base station of the first communication system in the first time slot before the instruction receiving unit receives a gateway start instruction input by a user;

and the clock synchronization unit is used for controlling the other path of voltage-controlled oscillation circuit to work at a second oscillation frequency in the latest time slot after receiving the clock synchronization signal, and broadcasting the clock synchronization signal to the second communication system through the other path of voltage-controlled oscillation circuit so as to synchronize the clocks among the first communication system, the second communication system and the two-path communication terminal.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the device-like embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A data communication method is characterized in that the method is applied to a two-way communication terminal, the two-way communication terminal is provided with two voltage-controlled oscillating circuits, and the method comprises the following steps:

2. The data communication method according to claim 1, wherein the controlling one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot comprises:

3. The data communication method according to claim 2, wherein the two-way communication terminal includes two voice output channels;

4. The data communication method according to claim 1, wherein the controlling one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot comprises:

5. The data communication method according to claim 4, wherein the two-way communication terminal comprises two voice acquisition channels;

6. The data communication method according to claim 1, wherein before the controlling one of the two voltage-controlled oscillator circuits to operate at the first oscillation frequency in the first time slot, the method further comprises:

7. The data communication method according to claim 2, wherein after the controlling one of the two voltage-controlled oscillation circuits to operate at a first oscillation frequency in a first time slot group and setting the one of the two voltage-controlled oscillation circuits in a signal receiving state, the method further comprises:

receiving a gateway starting instruction input by a user;

8. The data communication method according to claim 7, wherein the first communication system comprises a base station and at least one first terminal;

9. A data communication device, characterized in that, is applied to two-way communication terminal, two-way communication terminal is provided with two way voltage-controlled oscillation circuit, includes:

10. The data communication apparatus according to claim 9, wherein the first communication control unit includes:

the second communication control unit includes: