JP2006157477A - Transmitter and method for generating communication frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the communication efficiency of data communication by enabling the transmission of a plurality of types of data signals when simultaneously operating voice communication and data communication. <P>SOLUTION: A mini-header MH for describing information about a data signal to be inserted into a data frame is provided at the time of generating a communication frame F provided with a data part D in which voice frames and data frames are alternately repeated. A plurality of data frames are connected to one data frame provided with the mini-header MH. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transmitter and a method for generating a communication frame.

  A communication frame of a signal transmitted and received by the voice communication device includes a head header part and a voice packet signal following the header part. The header portion includes a synchronization signal for establishing communication with the counterpart communication device, header information such as ID information (Patent Document 1), and may include information such as a signal type.

By the way, some voice communication devices enable simultaneous operation of voice communication and data communication by transmitting voice frames and data frames of a predetermined length continuously and alternately following transmission of the header part. is there. A voice signal of a call sound is inserted into the voice frame, and a data signal for data communication is inserted into the data frame.
JP 2003-298644 A

  In the voice communication device that enables simultaneous operation of the voice communication and the data communication, the voice frame and the data frame are continuously transmitted until the end of the call. For this reason, the data signal is transmitted in the same manner as the audio signal.

  Here, if information such as the type of signal related to the data signal is included in the header part, only the data signal of the same category can be transmitted, and the data frame cannot be used efficiently. In particular, when the time until the end of the call is long, the number of data frames increases, which further reduces the efficiency of data communication.

  Therefore, an object of the present invention is to provide a transmitter capable of improving the communication efficiency of data communication and a method of generating a communication frame when operating voice communication and data communication simultaneously.

In order to solve the above-described problem, a transmitter according to a first aspect of the present invention includes an audio frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication alternately. A transmitter for generating and transmitting a communication frame including a data portion repeated in
The data frame is provided with a mini-header for describing information relating to data to be inserted into the data frame.

  According to the transmitter of the present invention, when generating a communication frame, the data frame is provided with a mini-header for describing information related to the data signal inserted into the data frame.

  As a result, information on the data signal repeatedly transmitted together with the audio signal can be described in the mini header, and different data signals can be inserted into different data frames. Thereby, a plurality of types of data signals can be transmitted together with the audio signal, and the communication efficiency of data communication can be improved.

The transmitter according to the second aspect of the present invention provides a data unit in which a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. A transmitter for generating and transmitting a communication frame comprising:
A connection relationship is given to a predetermined number of adjacent data frames in the data frame, and information related to data to be inserted into the plurality of data frames is described in the first data frame of the plurality of data frames having the connection relationship For this purpose, a mini-header is provided.

  According to the transmitter of the present invention, a coupling relationship is given to a plurality of data frames, and a mini header is provided in the first data frame of the plurality of data frames to which the coupling relationship is given. This mini-header is provided to describe information relating to data signals to be inserted into a plurality of data frames having a connection relationship.

  As a result, according to this transmitter, a mini header is provided in the first data frame among a plurality of data frames having a connection relationship, so that a data frame without a mini header can be effectively used for the purpose of data communication. Communication efficiency of communication can be improved.

  Further, in the transmitter for giving a coupling relationship to the plurality of data frames, the mini header can be provided to describe information about each of the data signals inserted into each of the plurality of data frames.

  According to the transmitter of the present invention, it is possible to describe in the mini-header information relating to all of the data signals inserted into all of the data frames having a connection relationship. Thereby, it is possible to cause the receiver to process the data signal transmitted by the data frame having the connection relationship more reliably and at high speed.

  The mini-header may be provided to further describe the number of data frames to which the coupling relationship is given.

In the communication frame generation method according to the third aspect of the present invention, a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. A communication frame generating method for generating a communication frame comprising a data portion,
A mini-header forming step of providing a mini-header for describing information related to data inserted in the data frame in the data frame is provided.

  According to the present invention, when generating a communication frame, the data frame is provided with a mini-header for describing information relating to the data signal inserted into the data frame.

  As a result, information on the data signal repeatedly transmitted together with the audio signal can be described in the mini header, and different data signals can be inserted into different data frames. Thereby, a plurality of types of data signals can be transmitted together with the audio signal, and the communication efficiency of data communication can be improved.

In the communication frame generation method according to the fourth aspect of the present invention, the voice frame for inserting the voice signal for voice communication and the data frame for inserting the data signal for data communication are alternately repeated. A communication frame generating method for generating a communication frame comprising a data portion,
A data frame combining step for providing a connection relationship to a predetermined number of adjacent data frames in the data frame;
A mini-header forming step of providing a mini-header for describing information related to data inserted into the plurality of data frames at a head data frame of the plurality of combined data frames.

  According to the present invention, when generating a communication frame, a coupling relationship is given to a plurality of data frames, and a mini header is provided in the first data frame of the plurality of data frames to which the coupling relationship is given. This mini-header is provided to describe information relating to data signals to be inserted into a plurality of data frames having a connection relationship.

  As a result, a mini-header is provided in the first data frame among a plurality of data frames to which a connection relationship is given, so that a data frame without a mini-header can be effectively used for the purpose of data communication, and the communication efficiency of data communication is improved. Can be made.

  Further, in the mini-header forming step when a communication frame is generated by giving a coupling relationship to the plurality of data frames, the mini-header describes information about each of the data signals inserted into each of the plurality of data frames. It can also be provided as needed.

  According to the present invention, it is possible to describe in the mini-header information relating to all data signals inserted into all data frames to which a connection relationship is given. Thereby, it is possible to cause the receiver to process the data signal transmitted by the data frame having the connection relationship more reliably and at high speed.

  In the mini-header forming step, the mini-header can be provided to further describe the number of data frames giving a connection relationship.

  According to the present invention, when generating a communication frame, the data frame is provided with a mini-header for describing information relating to the data signal inserted into the data frame. As a result, information on the data signal repeatedly transmitted together with the audio signal can be described in the mini header, and different data signals can be inserted into different data frames. Thereby, a plurality of types of data signals can be transmitted together with the audio signal, and the communication efficiency of data communication can be improved.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of a communication device 30 configured to include a transmitter according to an embodiment of the present invention. The communication device 30 includes a signal transmission function and a reception function. The transmitter that is an embodiment of the present invention can be implemented by the part that executes the transmission function of the communication device 30.

  When the communicator 30 functions as a transmitter, the communicator 30 transmits an audio signal based on a call sound of a user who uses the communicator 30 and a data signal for data communication toward the receiver. On the other hand, when the communication device 30 functions as a receiver, the communication device 30 receives an audio signal based on a call sound transmitted from the transmitter, and receives a data signal for data communication transmitted from the transmitter.

  As shown in FIG. 1, the communication device 30 includes an antenna 1, a transmission / reception switching unit 2, a transmission unit 3, a reception unit 4, an audio A / D / D / A conversion unit 5, an interface unit 6, a controller 7, an amplifier 8, A microphone 9, a speaker 10, an operation unit 11, and a display 12 are provided.

  The operation unit 11 is provided for inputting condition information for operating the communication device 30. The operation unit 11 is provided with various operation keys not shown in FIG. When the user of the communication device 30 operates the operation key, the communication device 30 can perform an operation based on the key input.

  As this operation key, an operation key for inputting data of an identification information (ID) portion of the header portion H of the communication frame F is provided. In forming the communication frame F, an operation key for performing an operation of inputting the number of data frames to be combined is also provided.

  The display 12 displays various information associated with the operation of the communication device 30. The display 12 displays the contents of the input operation to the operation unit 11 performed by the user. Thereby, the content of the input operation to the operation unit 11 can be confirmed on the display 12.

  The display 12 displays whether the communication device 30 functions as a transmitter or a receiver. The display 12 also displays the ID (identification information) of the communication device with which the communication device 30 is communicating.

  The display 12 also displays a message that prompts the user for a certain input operation. When the communicator 30 performs processing for combining a plurality of data frames when generating the communication frame F, a message for inquiring the user of the number of data frames to be combined and prompting the user to input the number of data frames is displayed on the display 12. Is displayed.

  First, a block when the communication device 30 functions as a transmitter will be described. The communication sound by the user of the communication device 30 is converted into an audio signal by the microphone 9, and this audio signal is input to the amplifier 8. The audio signal input to the amplifier 8 is amplified by the amplifier 8 and then output to the audio A / D / D / A converter 5.

  The voice A / D / D / A converter (voice analog / digital / digital / analog converter) 5 has an analog-digital conversion function for converting a voice signal between an analog signal and a digital signal. When the communication device 30 functions as a transmitter, the voice A / D / D / A converter 5 has a digital conversion function for converting an analog voice signal into a digital voice signal.

  The voice A / D / D / A conversion unit 5 has a compression function for compressing a voice signal that is a digital signal when the communication device 30 functions as a transmitter.

  The audio A / D / D / A converter 5 converts the analog audio signal input from the amplifier 8 into a digital audio signal. Then, the audio A / D / D / A converter 5 further compresses the audio signal as the digital signal, and outputs the compressed audio signal to the transmitter 3.

A personal computer for data communication to the external input and output terminal 17 connected to the interface unit 6 (hereinafter, referred to as "PC") are 15 connected, the data signal for data communication from the personal computer 15 to the interface unit 6 is Entered. The interface unit 6 outputs the input data signal to the transmission unit 3.

  The transmitter 3 has a modulation function for modulating the input signal. In the example of the communication device 30, a GMSK (Gaussian filtered Minimum Shift Keying) modulation method is adopted as a method by which the transmission unit 3 modulates a signal.

  The GMSK modulation method is one of digital modulation methods, and is a modulation method that narrows the band by passing a binary input signal once through a filter called a Gaussian filter and then performing frequency modulation. The transmission unit 3 performs a process of modulating the input audio signal and data signal by the GMSK modulation method.

  The transmission unit 3 outputs the signal subjected to the modulation process to the transmission / reception switching unit 2. When the communication device 30 functions as a transmitter, the transmission / reception switching unit 2 is formed with a circuit that guides the signal input from the transmission unit 3 to the antenna 1. Then, the signal input to the transmission / reception switching unit 2 is output to the antenna 1 and transmitted from the antenna 1 to the receiver that is the counterpart of the communication device 30.

  Here, a communication frame of a signal transmitted by the communication device 30 will be described with reference to FIG. FIG. 2 is a diagram illustrating a configuration of a communication frame F of a signal transmitted by the communication device 30. FIG. 2A shows the entire configuration of the communication frame F, and FIG. 2B shows the data portion D of the communication frame F in more detail.

  As shown in FIG. 2A, the communication frame F is composed of a header part H at the beginning and a data part D following the header part H. The header part H is a part used for connecting to the receiver of the other party, and includes an information signal for establishing communication with the receiver.

  The bit synchronization included in the header portion H is a bit synchronization signal for synchronizing the input signal. The frame synchronization included in the header portion H is a frame synchronization signal indicating that it is a signal.

  In the identification information (ID) portion included in the header portion H, data for identifying the communication device 30 serving as its own station and data for identifying the counterpart receiver are inserted. The destination relay station ID is identification information for identifying the relay station on the receiver side when communicating with the other station (the other party's receiver) via the relay station. The source relay station ID is identification information for identifying the relay station on the own station (communication device 30) side when communicating with the partner station via the relay station.

  The counterpart station ID is identification information for identifying the counterpart receiver, and the own station ID is identification information for identifying the own station (communication device 30). P_FCS represents a frame check sequence as to whether the header part is valid.

  Data for constituting the header portion H is input from the controller 7 to the transmission portion 3. Information on the various IDs for identifying the receiver of the other party is input by the user operating an operation key provided on the communication device 30 and is input to the controller 7.

  The data part D is configured by alternately repeating audio frames and data frames. The voice frame is a frame into which a voice signal for voice communication is inserted, and voice data input from the voice A / D / D / A converter 5 is inserted. The data frame is a frame in which a data signal for data communication is inserted, and data input from the interface unit 6 is inserted.

  In the communication device 30, when generating the communication frame F, as shown in FIG. 2B, a mini header MH is provided at the head portion of the data frame. The mini-header MH is provided to describe information related to the data signal inserted into the data frame.

  As information described in the mini header MH, a category of the data signal such as a type of the data signal can be described. For example, the type of signal such as a data signal being a video signal can be described.

  In addition, as information described in the mini header MH, information on a device that has captured a data signal in the communication device 30 can be described. For example, when the data of the personal computer 15 is captured and transmitted to the communication device 30, the personal computer 15 can be described as device information in the mini-header MH of the data frame into which the data of the personal computer 15 is inserted.

  The communication device 30 can also capture and transmit GPS (Global Positioning System) data. In this case, the GPS can be described as device information in the mini-header MH of the data frame into which the GPS data is inserted.

  Further, the communication device 30 may insert a synchronization signal for synchronizing with the receiver of the other party of transmission or a squelch code for causing the other receiver to perform the reception processing of the data part D into the data frame and transmit the data frame. it can. In this case, the type of signal such as the fact that these data are synchronization signals or squelch codes can be described in the mini-header MH of the data frame into which these data are inserted.

  In providing the mini-header MH, it is also possible to provide the mini-header MH so as to give a coupling relationship to a plurality of data frames and describe information relating to the data signals of the plurality of data frames.

  FIG. 3 is a diagram illustrating an example of a communication frame F in which a mini header MH is provided by giving a coupling relationship to a plurality of data frames. FIG. 3A shows an example in which two data frames are combined, and FIG. 3B shows an example in which three data frames are combined.

  When a connection relationship is given to a plurality of data frames, for example, as shown in FIG. 3A, two adjacent data frames are combined in the data frame. As shown in FIG. 3A, one mini-header MH is provided at the head portion of the head data frame of the two combined data frames. Further, as shown in FIG. 3B, one mini-header MH is provided at the head portion of the head data frame of the combined three data frames.

  When a coupling relationship is given to the plurality of data frames, one mini-header MH includes all data frames coupled to the mini-header MH (a data frame provided with the mini-header MH and a data frame coupled to the data frame). Information on the data signal to be inserted is described.

  Then, in describing information on data signals inserted into a plurality of data frames in the mini header MH, information on all data signals can be described. On the other hand, out of all data signals inserted into a plurality of data frames, only information regarding particularly important data signals can be described in the mini header MH, and data signals describing information in the mini header MH can be selected.

  Further, as the information described in the mini header MH, it is possible to describe all the data frames provided with the mini header MH and all the data frames coupled to the data frame.

  In this way, when a plurality of data frames are combined, one mini header MH is provided at the head data frame, and information on data signals inserted into all data frames connected to the mini header MH is described, the mini header Data frames provided with MH can be reduced.

  Thereby, the data frame which provides the mini header MH can be reduced, the data frame can be effectively used for the purpose of data communication, and the efficiency of data communication can be improved.

  Further, in the communication device 30, the number of data frames to be combined can be arbitrarily changed. That is, when the user performs an operation for setting the number of data frames with the operation unit 11, the number of data frames to be combined can be arbitrarily set according to the operation.

  The controller 7 shown in FIG. 1 controls the operation of the communication device 30. The controller 7 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Read / Write Memory).

  A control program for the controller 7 to control the operation of the communication device 30 is stored in the ROM. When the communication device 30 is used as a transmitter, the controller 7 controls the communication device 30 to function as a transmitter. The operation in which the interface unit 6 outputs data for data communication to the transmission unit 3 is performed under the control of the controller 7.

  Further, the RAM of the controller 7 stores data for generating the communication frame F. For example, the RAM stores the ID of the own station (communication device 30) for configuring the header part D, the ID of the receiver serving as the counterpart station, and the like. The RAM also stores data related to generation of the mini header MH.

  For example, various kinds of information related to data signals for data communication are stored in the RAM as data related to generation of the mini header MH. Further, when the mini header MH is provided by combining a plurality of data frames, data on the number of data frames to be combined input by the user's operation is stored in the RAM.

  Further, for example, a USB (Universal Serial Bus) interface is connected to the controller 7, and data of an external device connected to the USB interface is input to the controller 7. A personal computer can be connected to the USB interface as an external device, and the communication device 30 can be controlled by the personal computer.

  Next, a block when the communication device 30 functions as a receiver will be described. To the communication device 30 as a receiver, a voice signal of a call sound and a data signal for data communication are transmitted from the transmitter of the other party. The signal transmitted to the communication device 30 constitutes the communication frame F described with reference to FIGS.

  The antenna 1 receives a radio signal transmitted to the communication device 30. A radio signal received by the antenna 1 is input to the transmission / reception switching unit 2. When the communication device 30 functions as a receiver, the transmission / reception switching unit 2 is formed with a circuit that guides the signal received by the antenna 1 to the reception unit 4.

  The receiving unit 4 has a tuning function for selecting and receiving a signal of a specific communication channel. In the receiving unit 4, a frequency band of a radio signal to be received is set. Then, the reception signal of the channel having the frequency set in the receiving unit 4 is input from the antenna 1 to the receiving unit 4 through the transmission / reception switching unit 2.

  The receiving unit 4 has a demodulation function for demodulating the input received signal. In the example of the communication device 30, the receiving unit 4 performs GMSK demodulation. Data of the header part H included in the communication frame F of the received signal demodulated by the receiving unit 4 is input to the controller 7.

  The controller 7 determines whether or not the received signal is transmitted to the communication device 30 based on the information of the header part D. If the controller 7 does not determine that the received signal has been transmitted to the communication device 30, the controller 7 controls the receiving unit 4 to discard the data in the header part H and discard the data in the data part D. On the other hand, when the controller 7 determines that the received signal has been transmitted to the communication device 30, the controller 7 performs control to sequentially process the received communication frames F.

  Of the data included in the data portion D of the received signal, the audio data included in the audio frame is input to the audio A / D / D / A converter 5, and the data communication data included in the data frame is Input to the interface unit 6. Data input to the interface unit 6 is output to the personal computer 15 through the external input / output terminal 17.

  When processing the data for data communication, the controller 7 refers to the information described in the mini header MH when the mini header MH is provided in the data frame.

  The voice A / D / D / A converter (voice analog / digital / digital / analog converter) 5 has an analog-digital conversion function for converting a voice signal between an analog signal and a digital signal. When the communication device 30 functions as a receiver, the audio A / D / D / A converter 5 has an analog conversion function for converting a digital audio signal into an analog audio signal.

  In addition, when the communication device 30 functions as a receiver, the audio A / D / D / A conversion unit 5 has a decompression function for decompressing a digital signal when performing analog conversion. The audio A / D / D / A converter 5 expands the digital audio signal input from the receiver 4 and converts it into an analog audio signal.

  The audio signal converted into an analog signal by the audio A / D / D / A converter 5 is input to the amplifier 8. The amplifier 8 amplifies the input audio signal and outputs it to the speaker 10. The speaker 10 outputs a call sound of the user of the transmitter based on the input audio signal.

  As described above, the controller 7 includes a CPU, a ROM, and a RAM. A control program for the controller 7 to control the communication device 30 to function as a receiver is stored in the ROM.

  Next, the operation of the communication device 30 described above will be described with reference to FIG. FIG. 4 is a flowchart of a transmission process for generating and transmitting the communication frame F. When the user of the communication device 30 performs an operation to start communication with the other receiver, the transmission process is started.

  For the operation for the user to start communication with the other party's receiver, identification information for identifying the own station such as the ID of the own station (communication apparatus 30) or the other station such as the ID of the other party's receiver is used. An operation for inputting identification information to be identified is included. The identification information and the like input by the user are read into the controller 7 by a procedure not shown in FIG.

  The communication device 30 makes an inquiry to the user regarding processing for combining a plurality of data frames (step S11). This inquiry is made by displaying an inquiry message on the display 12.

  In response to this inquiry, when the user inputs an answer regarding whether or not to perform a process of combining data frames and the number of data frames when combining a plurality of data frames, Are read (step S12).

  Based on the condition read in step S12, it is determined whether or not the user wishes to combine a plurality of data frames (step S13). If it is determined that the user has input that data frames are not combined (step S13, NO), 1 is set to the number of data frames ND in which one mini header MH is provided (step S14).

  On the other hand, if it is determined that the user inputs that data frames are to be combined (step S13, YES), the condition of the number n of data frames to be combined is read (step S15), and the number of data frames ND with one mini header MH is set. n is set (step S16).

  Next, the controller 7 generates a header portion H of the communication frame F based on the data based on the ID of the own station or the partner station input by the user, etc., and transmits it (step S17). The controller 7 generates the header part H and outputs it to the transmission part 3. The header part H is processed by the transmission part 3 and transmitted from the antenna 1.

  Next, 1 is set to the frame number count parameter k for performing processing when data frames are combined (step S18).

  Next, the controller 7 performs processing for generating and transmitting an audio frame (step S19). Under the control of the controller 7, an audio signal based on the user's call sound is inserted into the audio frame. The voice frame is processed by the transmission unit 3 and transmitted from the antenna 1.

  Next, the controller 7 starts a process for generating and transmitting a data frame (step S20). The controller 7 determines whether or not the number of data frames ND is 1 (step S21). If ND is not 1 (step S21, NO), it is determined whether k is 1 (step S22).

  If ND is 1 (step S21, YES), or ND is not 1 (step S21, NO), but k is 1 (step S22, YES), a mini header MH is generated (step S23).

  In step S23, when generating the mini-header MH, information about a data signal to be transmitted is described by a data frame provided with the mini-header MH. If ND = 1 is not satisfied, in step 23, information on data signals inserted into a plurality of data frames coupled to one mini header MH, including data signals to be transmitted later, is described in the mini header MH.

  Next, the controller 7 performs a process of taking in a data signal output from the personal computer 15 via the interface unit 6 (step S24). Next, the controller 7 performs a process of adding the mini header MH to the head of the data signal so as to insert the data signal into the data frame provided with the mini header MH (step S25). The data frame generated in step S25 is transmitted to the transmission unit 3 and processed, and then transmitted from the antenna 1 (step S26).

  On the other hand, if k is not 1 in step S22 (step S22, NO), the controller 7 performs a process of taking in the data signal output from the personal computer 15 via the interface 6 (step S27). The data frame in which the data signal captured in step S27 is inserted is transmitted to the transmission unit 3 and processed, and then transmitted from the antenna 1 (step S26).

  When the controller 7 detects that the user of the communication device 30 has input an operation to end communication, the controller 7 ends the transmission process (step S28, YES). On the other hand, if the controller 7 does not detect that the user of the communication device 30 has input an operation to end the communication (step S28, NO), the controller 7 updates the frame count parameter k to (k + 1) (step S29).

  Then, it is determined whether k is equal to (n + 1) (step S30). When k is not equal to (n + 1) (step S30, NO), the process proceeds to step S19. On the other hand, when k becomes equal to (n + 1) (step S30, YES), 1 is set to k (step S31), and the process proceeds to step S19.

  In the communication device 30, as described above, in generating the communication frame F for transmitting the audio signal and the data signal, the mini header MH is provided in the data frame. Then, information on the data signal transmitted by the data frame is described in the mini header MH.

  As a result, the data signal transmitted together with the audio signal is not limited to one type of signal, and various types of signals can be transmitted. Thereby, the communication efficiency of data communication can be improved. In particular, when the communication by the communication device 30 takes a long time, the data signal can be transmitted for a long time, but various types of data signals can be transmitted during this time. Thereby, the communication efficiency of data communication can be improved.

  Further, when providing the mini header MH, when a plurality of data frames are given a coupling relationship and one mini header MH is provided for the plurality of data frames, the mini header MH is provided in all the data frames in the communication frame F. Can be reduced. Thereby, the data frame can be effectively used for the purpose of data communication, and the communication efficiency of data communication can be further improved.

  In the above description, the user is inquired regarding the process of combining data frames in step S11. In combining data frames, when data to be transmitted is input or generated inside the communication device 30, a data frame combining condition may be automatically created.

  In the communication device 30 described above, it has been described that the signal to be transmitted is modulated by the GMSK modulation method. In practicing the present invention, other modulation schemes can be employed. A QPSK modulation method and other modulation methods may be employed as a modulation method employed by a communication device for carrying out the present invention.

  In the above description, an example in which the data fetched from the personal computer 15 to the communication device 30 is transmitted by a data frame has been described. In practicing the present invention, digital data output from a device other than a personal computer can be taken into a transmitter, and this data can be inserted into a data frame for transmission. For example, GPS (Global Positioning System) data can be captured by the transmitter according to the present invention, and this data can be inserted into a data frame for transmission.

It is a block diagram of the communication apparatus which functions as a transmitter of one Embodiment of this invention. It is a figure which shows the communication frame of the signal which a communication apparatus transmits. It is a figure which shows the structure of the data part contained in a communication frame. It is a flowchart of a transmission process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna 2 Transmission / reception switching part 3 Transmission part 4 Reception part 5 Audio | voice A / D * D / A conversion part 6 Interface part 7 Controller 8 Amplifier 9 Microphone 10 Speaker 11 Operation part 12 Display 15 Data communication personal computer 17 External input / output terminal 30 Communication equipment

Claims (8)

A transmitter that generates and transmits a communication frame including a data portion in which a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. ,
A transmitter characterized in that a mini-header is provided in the data frame for describing information relating to a data signal inserted into the data frame. A transmitter that generates and transmits a communication frame including a data portion in which a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. ,
In addition to giving a coupling relationship to a predetermined number of adjacent data frames in the data frame, information on data signals inserted into the plurality of data frames is described in the first data frame of the plurality of data frames having the coupling relationship A transmitter characterized in that a mini-header is provided.   The transmitter according to claim 2, wherein the mini-header is provided to describe information about each of the data signals inserted into each of the plurality of data frames.   4. The transmitter according to claim 2, wherein the mini-header is provided to further describe the number of data frames to which the coupling relationship is given. A communication frame generation method for generating a communication frame including a data portion in which a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. ,
A method for generating a communication frame, comprising: a mini-header forming step of providing a mini-header for describing information on a data signal inserted into the data frame in the data frame. A communication frame generation method for generating a communication frame including a data portion in which a voice frame for inserting a voice signal for voice communication and a data frame for inserting a data signal for data communication are alternately repeated. ,
A data frame combining step for providing a connection relationship to a predetermined number of adjacent data frames in the data frame;
A mini-header forming step of providing a mini-header for describing information related to data inserted into the plurality of data frames at a head data frame of the plurality of combined data frames. Generation method.   7. The method of generating a communication frame according to claim 6, wherein, in the mini-header forming step, the mini-header is provided to describe information relating to each of data signals inserted into each of the plurality of data frames. 8. The method of generating a communication frame according to claim 6, wherein, in the mini-header forming step, the mini-header is provided to further describe the number of data frames giving a coupling relationship.

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