JP3542906B2 - Data communication terminal connection method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a data communication terminal connection method, and more particularly to a data communication terminal connection method for increasing the number of data links by bulk connection control to establish a high-speed and large-capacity data link.
[0002]
[Prior art]
Generally, a data communication connection by a digital portable telephone is output to an analog public network via a base station and a switch of the digital portable telephone network. Data communication via the analog public network is initialized for line connection. Since the negotiation takes time, the occupation ratio of the negotiation time tends to increase particularly as the data communication speeds up.
[0003]
As an example of a technique for accelerating such negotiation, a "data communication system and a network interface unit used in the data communication system" described in Japanese Patent Application Laid-Open No. 9-84123 is known.
[0004]
In this publication, a technique is disclosed in which a data control device has a network interface unit that can be directly connected to a digital mobile communication network, and a data terminal and a data control device use only the digital mobile communication network to speed up negotiation. Has been described.
[0005]
[Problems to be solved by the invention]
The above-described conventional data communication terminal connection method has a drawback that a network interface unit is required, the system configuration becomes complicated, and maintenance is required, thereby impairing economic efficiency.
[0006]
An object of the present invention is to provide a high-speed, large-capacity data communication terminal connection method by establishing a plurality of data links by a simple method without changing the system configuration.
[0007]
[Means for Solving the Problems]
The data communication terminal connection method according to the present invention includes a terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and A terminal device for data link with a station is provided, and the control device performs line connection between the terminal device and the terminal device based on bulk connection information.
[0008]
A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. Prepare,
A data transmitting / receiving unit that receives the transmission signal and outputs a bulk connection instruction signal; a bulk control unit that receives the bulk connection instruction signal and outputs a plurality of link connection signals for bulk connection; A plurality of frame controllers for receiving a connection signal, outputting a plurality of link establishment signals, and performing link establishment release control of the plurality of mobile stations.
[0009]
The data transmitting / receiving unit monitors a data transmitting / receiving state between the terminal device and the partner terminal device, and when the bulk connection is determined to be valid, outputs the bulk connection instruction signal to the bulk control unit. I have.
[0010]
The bulk control unit uses a data link already connected by a first call, receives a line number of a second call issued by the partner terminal device from one of the plurality of frame control units, and A data link connection request for the second call with the partner terminal device is made to the other of the plurality of frame controllers based on the line number of the call.
[0011]
The plurality of frame control units have first and second frame control units, and the first frame control unit receives a line number of the second call, notifies the bulk control unit of the line number, and The second frame control receives the second connection request issued by the bulk control unit using the line number of the second call, and connects the partner terminal device to the data link of the second call. And
[0012]
Further, the data link is a PIAFS data link.
[0013]
It should be noted that the partner terminal device includes a plurality of mobile devices and a plurality of frame control units.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is a block diagram showing one embodiment of a data communication terminal connection system according to the present invention.
[0016]
In the present embodiment shown in FIG. 1, DTE (Data Terminal Equipment) 1 indicating a data terminal device for inputting and outputting data, PS (Personal Station) 15 and 16 indicating mobile stations of a plurality of PHSs, and DTE 1 A control device 10 for transmitting and controlling the transmission request signal 2 to the PS15 and PS16, and a partner terminal 20 for data link with the PS15 and PS16.
[0017]
The control device 10 receives the transmission request signal 2 from the DTE 1 and outputs it to the bulk control unit 12 as a bulk connection instruction signal 3, and transmits the link control signals 4 and 5 for bulk connection to the PIAFS control unit 13. , 14 and PIAFS controllers 13, 14 for establishing and releasing the data links of the PSs 15, 16 based on the link establishment signals 6, 7.
[0018]
Further, the partner terminal 20 has PSs 21 and 22 as mobile stations and PIAFS controllers 23 and 24 for controlling link establishment / release with these PSs.
[0019]
Here, PIAFS (PHS Internet Access Forum Standard) indicates a high-quality data transfer procedure using a PHS 32 kbps unrestricted digital bearer in a protocol operating on one data link.
[0020]
That is, the data link has an information transfer rate of 32 kbit / s. By adding the PIAFS data link as needed, a higher-speed data link can be provided.
[0021]
The term "bulk connection" means a connection for increasing data transmission speed and capacity by physically increasing the number of lines.
[0022]
Next, the operation of the present embodiment will be described in more detail with reference to FIG.
[0023]
The transmission request signal 2 from the DTE 1 is received by the data transmission / reception unit 11 on the DTE side, and is notified to the bulk control unit 12. First, the bulk control unit 12 outputs a link control signal 4 to the PIAFS control unit 13, and the PIAFS control unit 13 outputs a link establishment signal 6, and establishes a PIAFS link of the first call with the partner terminal 20 via the PS 15. Stretch. In this state, the DTE 1 monitors, via the control device 10, the amount of data transmitted and received to enable data communication with the partner terminal 20 by using the data transmission / reception unit 11 to determine whether the bulk connection is valid and to determine whether the bulk connection is valid. ", A bulk connection is instructed to the bulk control unit 12 by the bulk connection instruction signal 3.
[0024]
Next, the bulk control unit 12 outputs the link control signal 5 to the PIAFS control unit 14, and the PIAFS control unit 14 outputs the link establishment signal 7, and establishes the PIAFS link of the second call with the partner terminal 20 via the PS16. This can provide twice as many transmission paths as one PIAFS link. Also, by using n PIAFS links, n times transmission paths can be provided.
[0025]
As described above, the data transmission / reception unit 11 controls transmission / reception of commands and data to / from the DTE 1, receives a transmission request, a disconnection request, and the like from the DTE 1 and issues an instruction to the PIAFS control unit 13 via the bulk control unit 12. , And notifies the DTE 1 of an incoming call notification, disconnection notification, and the like from the PIAFS control unit 13. Further, it monitors the amount of data to and from the DTE 1, determines whether or not to perform bulk connection, and notifies the bulk control unit 12 of the result.
[0026]
The bulk control unit 12 performs call control for bulk connection and data division and connection. When the bulk connection instruction signal 3 is received from the data transmission / reception unit 11, the currently connected call (the first call using the PIAFS control unit 13 via the PS 15) is used, and the second call is used. The line number is obtained from the partner terminal 20. Next, the PIAFS control unit 14 is used with the line number, and a second call link is established with the partner terminal 20 via the PS 16.
[0027]
That is, the PIAFS control units 13 and 14 establish and release the data link in the PIAFS control units 13 and 14 based on the link control signals 4 and 5 from the bulk control unit 12.
[0028]
By adding a field indicating the presence or absence of bulk connection to the “communication parameters” of the PIAFS control frame, it is possible to know whether or not bulk connection is possible. By adding a "bulk connection" frame to the "user information" of the PIAFS control frame and using this frame to notify the line numbers to be added, the number for the bulk connection can be known. This also allows connection using lines with different line numbers. By monitoring the amount of data being sent and received, performing bulk connection only when necessary, and disconnecting the added line when the amount of data is small, unnecessary billing can be eliminated and data transmission and reception can be performed efficiently. Can do it.
[0029]
FIG. 2 is a diagram illustrating a bulk connection request of a control frame.
[0030]
Referring to FIG. 2, the control frame has a sequence number of 4 bits, a control information type of 4 bits, a control information content identifier of 8 bits as user information, a user information content identifier of 8 bits, a bulk connection line number of 8 bits, and an arbitrary bit length. It is composed of a reservation data format consisting of
[0031]
When a bulk connection is requested, "bulk connection" is added to "user information content identifier" using "user information" of the control frame. Here, the value is set to 08H (00001000) in hexadecimal, but this value is used by selecting a value that is not used elsewhere. “Line number for bulk connection” designates a line number added for bulk communication.
[0032]
FIG. 3 is a diagram for explaining bulk connection reception of a control frame.
[0033]
Referring to FIG. 3, 8 bits of the reception result are added to the format of FIG. 2, and the reception result 00H is returned when the bulk connection is allowable.
[0034]
FIG. 4 is a diagram for explaining rejection of a bulk connection of a control frame.
[0035]
Referring to FIG. 4, the rejection reason 8 bits are added to the format of FIG. 2, and rejection 02H is returned when bulk connection is not allowed.
[0036]
FIG. 5 is a diagram showing a PIAFS connection procedure.
[0037]
In FIG. 5, upon receiving a connection request from DTE 1, control device 10 sends a line connection request to PS 15 and waits for the establishment of a control channel. When the control channel is established with the partner terminal 20, the PS 15 sends a line connection completion to the control device 10. Thereby, the control device 10 establishes the PIAFS link. First, a negotiation request / negotiation reception is performed with the partner terminal 20 to establish PIAFS synchronization. Thereafter, a communication parameter request / communication parameter reception is negotiated, a PIAFS version and an RTF are negotiated. When this is completed, an information channel is established and a data communication state is established, so that data transmission / reception between the DTE 1 and the partner terminal 20 becomes possible. .
[0038]
That is, the negotiation frame is transmitted first after the call control is established. The role of the negotiation frame is to select a data communication protocol, establish synchronization, and measure RTF. Here, RTF (Round Trip delay Frame) is a parameter used in PIAFS and indicates a response delay time.
[0039]
Regarding the selection of the data communication protocol, the currently supported protocol is only PIAFS, but the protocol can be selected when a new protocol is added in the future. The establishment of synchronization is a process for establishing end-to-end synchronization in the information channel, and the measurement of RTF is performed from the time when a request frame is transmitted to the other party in the synchronization establishment process until the reception frame is returned. The RTF value is calculated by counting the number of frames.
[0040]
The communication parameter frame is a frame transmitted when PIAFS is selected in the negotiation frame, and negotiates the communication conditions of the PIAFS protocol. The contents to be negotiated include the PIAFS version, RTF value, compression information, and the like.
[0041]
FIG. 6 is a diagram illustrating the connection procedure of FIG.
[0042]
Next, the connection procedure of the present invention will be described with reference to FIG.
Here, the operations of the data transmitting / receiving unit 11, the bulk control unit 12, the PIAFS control unit 13, and the PIAFS control unit 14 play an important role.
[0043]
When the data transmission / reception unit 11 receives a connection request from the DTE 1, the data transmission / reception unit 11 sends a connection request to the PIAFS control unit 13 and requests a link establishment of a first call. The PIAFS control unit 13 sends a line connection request to the PS 15 and requests the PS 15 to establish a control channel with the partner terminal 20. When the control channel with the partner terminal 20 is established, the PS 15 notifies the PIAFS controller 13 of the completion of the line connection. The PIAFS control unit 13 establishes PIAFS synchronization by negotiating a negotiation request / reception with the partner terminal 20 to establish a PIAFS link. Thereafter, a communication parameter request / communication parameter reception is performed, and PIAFS version and RTF are negotiated. In the present invention, by adding information of “the presence or absence of bulk connection” to “communication parameter request / communication parameter reception”, it becomes possible to know whether the partner terminal 20 is capable of bulk connection. When the communication parameter request / communication parameter acceptance negotiation is completed, the PIAFS control device 13 sends a connection completion to the data transmission / reception unit 11 to notify that the PIAFS data link has been established. The data transmission / reception unit 11 notifies the DTE 1 of the connection completion, thereby enabling data transmission / reception between the DTE 1 and the partner terminal 20.
[0044]
Next, the data transmission / reception unit 11 monitors the data transmission / reception state between the DTE 1 and the partner terminal 20 and, when judging that the bulk connection is valid, instructs the bulk control unit 12 to perform the bulk connection. The bulk control unit 12 uses the PIAFS control unit 13 to request a line number request for the line of the second call with the partner terminal 20. This is realized by using the PIAFS link of the first call and adding a "bulk connection number" to the "user information" of the control frame of the PIAFS frame. That is, the bulk control unit 12 requests the PIAFS control unit 13 for the line number. Accordingly, the PIAFS control unit 13 obtains the line number of the second call by interchanging the bulk connection number request / reception of the user information with the partner terminal 20.
[0045]
The PIAFS control unit 13 receives the line number acceptance, and notifies the bulk control unit 12 of the line number of the second call. Using this line number, the bulk control unit 12 makes a second connection request to the PIAFS control unit 14, and performs line connection for the second call. The PIAFS control unit 14 uses the PS 16 to establish a second call PIAFS link with the partner terminal 20. When this establishment is completed, PIAFS × 2 communication of 32 kbit / s becomes possible.
[0046]
【The invention's effect】
As described above, the data communication terminal connection method of the present invention can increase the number of data links by adding bulk connection information to the PIAFS frame, so that high-speed and large-capacity communication can be performed using existing facilities. Has the effect of becoming
[Brief description of the drawings]
FIG. 1 is a block diagram showing one embodiment of a data communication terminal connection method according to the present invention.
FIG. 2 is a diagram illustrating a bulk connection request of a control frame.
FIG. 3 is a diagram illustrating reception of a bulk connection of a control frame.
FIG. 4 is a diagram for explaining rejection of bulk connection of a control frame.
FIG. 5 is a diagram showing a PIAFS connection procedure.
FIG. 6 is a diagram illustrating a connection procedure of FIG. 1;
[Explanation of symbols]
1 DTE
2 Transmission request signal 3 Bulk connection instruction signal 4, 5 Link control signal 6, 7 Link establishment signal 10 Controller 11 Data transmission / reception unit 12 Bulk control unit 13, 14 PIAFS control unit 15, 16 PS
20 Other terminal 21, 22 PS
23, 24 PIAFS control unit

Claims (10)

A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data transmission / reception unit that receives the transmission signal and outputs a bulk connection instruction signal; a bulk control unit that receives the bulk connection instruction signal and outputs a plurality of link connection signals for bulk connection; A data communication terminal connection system having a plurality of frame control units for receiving a link connection signal and outputting a plurality of link establishment signals and performing link establishment release control of the plurality of mobile stations,
The data transmission / reception unit monitors a data transmission / reception state between the terminal device and the partner terminal device, and when the bulk connection is determined to be valid, outputs the bulk connection instruction signal to the bulk control unit. to Lud over data communication terminal connection system. A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data transmission / reception unit that receives the transmission signal and outputs a bulk connection instruction signal; a bulk control unit that receives the bulk connection instruction signal and outputs a plurality of link connection signals for bulk connection; A data communication terminal connection system having a plurality of frame control units for receiving a link connection signal and outputting a plurality of link establishment signals and performing link establishment release control of the plurality of mobile stations,
The bulk control unit uses a data link already connected by a first call, receives a line number of a second call issued by the partner terminal device from one of the plurality of frame control units, and A data communication terminal connection method, wherein a data link connection request for a second call with the partner terminal device is made to the other of the plurality of frame controllers based on a line number of a call. The bulk control unit uses a data link already connected by a first call, receives a line number of a second call issued by the partner terminal device from one of the plurality of frame control units, and the counterpart terminal device and the data communication terminal connection system that 請 Motomeko 1 wherein you said the second call th data link connection request is performed to the other of the plurality of frame controller by the call-th line number. A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data transmission / reception unit that receives the transmission signal and outputs a bulk connection instruction signal; a bulk control unit that receives the bulk connection instruction signal and outputs a plurality of link connection signals for bulk connection; A data communication terminal connection system having a plurality of frame control units for receiving a link connection signal and outputting a plurality of link establishment signals and performing link establishment release control of the plurality of mobile stations,
The plurality of frame control units have first and second frame control units, and the first frame control unit receives a line number of the second call, notifies the bulk control unit of the line number, and The second frame control receives the second connection request issued by the bulk control unit using the line number of the second call, and connects the partner terminal device to the data link of the second call. Data communication terminal connection method. The plurality of frame control units have first and second frame control units, and the first frame control unit receives a line number of the second call, notifies the bulk control unit of the line number, and The second frame control receives the second connection request issued by the bulk control unit using the line number of the second call, and connects the partner terminal device to the data link of the second call. data communication terminal connection system as claimed in claim 1 or 3, wherein the. A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data communication terminal connection system in which the control device performs a line connection between the terminal device and the partner terminal device according to bulk connection information,
A data communication terminal connection method, wherein the data link is a PIAFS data link. A terminal device for inputting and outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and A data transmission / reception unit, comprising: a partner terminal device that performs data link with a mobile station; wherein the control device receives the transmission signal and outputs a bulk connection instruction signal; A data communication terminal connection method, comprising: a bulk control unit that outputs a signal; and a plurality of frame control units that receive the plurality of link connection signals, output a plurality of link establishment signals, and perform link establishment release control of the plurality of mobile stations. And
A data communication terminal connection method, wherein the data link is a PIAFS data link. Wherein the data link is claim 1, 3 or 5 data communication terminal connection system as claimed which is a PIAFS data link. A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data communication terminal connection method, wherein the control device performs a line connection between the terminal device and the partner terminal device by bulk connection information,
A data communication terminal connection method, wherein the partner terminal device includes a plurality of mobile devices and a plurality of frame control units. A terminal device for inputting / outputting data, a plurality of mobile stations, a control device for controlling transmission of a transmission signal of the terminal device to the plurality of mobile stations, and a partner terminal device for data linking with the plurality of mobile stations. A data transmission / reception unit that receives the transmission signal and outputs a bulk connection instruction signal; a bulk control unit that receives the bulk connection instruction signal and outputs a plurality of link connection signals for bulk connection; A data communication terminal connection system having a plurality of frame control units for receiving a link connection signal and outputting a plurality of link establishment signals and performing link establishment release control of the plurality of mobile stations,
A data communication terminal connection method, wherein the partner terminal device includes a plurality of mobile devices and a plurality of frame control units.

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