JP2000217155A - Phs data communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a PHS data communication system in which radio communication terminals each using a PHS portable terminal conducts efficient communication. SOLUTION: Transmission reception of a plurality of radio communication channels is executed, PHS portable terminals 2, 6 with the PIAFS data transmission protocol are used, and an application software program installed in radio communication terminals 1, 7 informs the PHS portable terminals about a communication data total amount. Base stations 3, 5 are provided with protocol control sections 18, 24, that compare the data total amount with a threshold value and select and convert an ISDN 4 and a communication means according to the comparison result to conduct data communication between the radio communication terminals so as to realize simple and efficient PHS data communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PHS (Personal Handy Phone System) data communication system, and more particularly to a PHS portable telephone and a PHS portable data terminal.
The present invention relates to a PHS data communication system for transmitting data using S.

[0002]

2. Description of the Related Art In a conventional PHS data communication system, there is no method for switching communication means (protocol) between base stations according to the amount of data to be communicated. PIAFS
(PHS Internet Access Forum Standard; data transmission service standard of 32 Kbit / sec using PHS) End-to-end data communication according to a control procedure is performed.

[0003] An example of a conventional PHS data communication system similar to such a communication system is disclosed in Japanese Patent Application Laid-Open No. H10-42359. FIG. 3 shows a block diagram proposed in this publication. Referring to FIG. 3, a wireless data communication terminal 1 for transmitting and receiving transmission data, and a plurality (n) of packet-switched wireless communication devices for wirelessly transmitting transmission data from wireless data communication terminal 1 and transmitting wirelessly received transmission data 3 to 5 and a distribution unit 2 for distributing transmission data between these wireless data communication terminals and a plurality of packet-switched wireless communication devices.

As a PHS fixed-side communication system,
A wireless base station 6, an ISDN network 7, an ISDN terminal adapter 8, and a server 9 are provided. A PHS data multiplexing communication system is configured by all the elements described above.

The wireless data communication terminal 1 makes a call to the PHS fixed-side communication system through a plurality of packet-switched wireless communication devices 3 to 5, and a plurality (n) between the wireless data communication terminal and the PHS fixed-side communication system. Is established, and transmission data is divided into a plurality (n) by the distribution unit 2 for transmission / reception.

[0006] The PHS data multiplexing communication system has a configuration using PHS portable terminals 3 to 5 each having an antenna, a radio transmission / reception unit and a control unit as packet-switched radio communication means. The wireless base station 6 includes an ISDN terminal adapter 8 and a server 9 connected to the wireless base station 6 through an ISDN network 7 and communicating with a plurality of B channels.

The wireless data communication terminal 1 has a configuration using a computer on which client software of a network operation system is installed.
The server 9 has a configuration using a personal computer or a workstation on which server software of a network operation system is mounted.

In the PHS data multiplexing communication system having such a configuration, a plurality of (n) packet-switched wireless communication devices 3 to 5 make a call to the ISDN terminal adapter 8 of the PHS fixed communication system. By this call, a plurality (n) of data links are established between the wireless data communication terminal 1 and the server 9 (ISDN terminal adapter), and the transmission unit divides the transmission data into a plurality (n) and transmits / receives them. ing.

As a result, the existing PHS, that is, PHS
Fixed-side communication system and PHS portable terminals 3 to 5 (PHS
A multiplexed data can be transmitted between the wireless data communication terminal 1 and the server 9 by a simple device scale that uses a mobile phone or a PHS portable data terminal) and does not require a system change accompanying the multiplexing. . Further, a plurality (n) times of data transmission is performed between the wireless data communication terminal 1 and the server 9 as compared with a case where a call is made from a PHS portable terminal as one packet-switched wireless communication unit.

[0010]

However, the above-mentioned conventional system has the following problems. The first problem is that a plurality (n) of packet-switched wireless
A call is made to the ISDN terminal adapter of the HS fixed communication system, and the wireless data communication terminal and the server (IS
A plurality of (n) data links are established with the (DN terminal adapter) to transmit and receive a plurality of (n) divided transmission data. Therefore, in order to establish a plurality of data links, a plurality of PHS portable terminals are required, and there is a drawback in that equipment and equipment costs increase.

A second problem is that a plurality of wireless communication channels (wireless communication slots) are occupied in order to establish a plurality of data links, which results in an increase in communication line charges and an effective use of the wireless communication channels. There is a disadvantage that it hinders.

The present invention has been made in order to solve such problems in the prior art, and has as its object to provide a plurality of wireless communication channels (wireless communication slots).
By using a PHS portable terminal that uses a PHS and a base station that can selectively convert the data communication protocol between the base station and the ISDN network, a plurality of PHS portable terminals and a data distribution device are not required, and the wireless communication using the PHS portable terminal is used. An object of the present invention is to provide an efficient PHS data communication system between communication terminals.

[0013]

According to the present invention, there is provided a data communication terminal capable of transmitting and receiving data, and a PHS mobile phone for wirelessly transmitting data from the data communication terminal and transmitting wirelessly received data to the data communication terminal. Terminal and the PHS
A PHS data communication system including a base station for wirelessly relaying data between a mobile terminal and an ISDN network, wherein the PHS mobile terminal determines a total amount of transmission data transmitted from the data communication terminal by the base station. The PHS has a means for selecting a communication channel of the ISDN network according to a total amount of the transmission data notified from the PHS portable terminal.
A data communication system is obtained.

[0014] The PHS portable terminal is characterized in that the total amount of the transmission data is inserted into the call setting information section and transmitted, and the total amount of the transmission data is transmitted to the user of the call setting information section. The message is transmitted by inserting it into the user information.

Further, the base station selects the B channel of the ISDN network when the total amount of the transmission data is larger than a predetermined value, and the total amount of the transmission data is smaller than a predetermined value. In some cases, the D channel of the ISDN network is selected.
In addition, the base station receives a PIA from the PHS mobile terminal.
It is characterized by having means for converting the FS control procedure into packet data and circuit switching data.

The operation of the present invention will be described. By using a PHS mobile terminal having a PIAFS control procedure and performing data communication by selecting a communication channel of an ISDN network according to the total amount of data to be transmitted, the efficiency between wireless communication terminals is improved.

[0017]

Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the PH of the present invention.
It is a block diagram showing composition in an embodiment of S data communications system. In FIG. 1, wireless communication terminals 1 and 7 for performing data communication and PHS portable terminals 2 and 6 having antennas and performing wireless communication with these wireless communication terminals 1 and 7 are shown.
And base stations 3 and 5 having antennas for performing wireless communication with the PHS portable terminals 2 and 6 and connected to an ISDN (PHS) network 4.

The wireless communication terminals 1 and 7 are personal computers equipped with an operation system and data communication application software. The PHS portable terminals 2 and 6 are provided with wireless transmission / reception units 9 and 29 having antennas 8 and 28 and having a PIAFS connection procedure capable of simultaneous transmission and reception in two slots (two channels), and an operation unit 11 for inputting a telephone number or the like using buttons. , 31, LCD units 10, 30 for displaying button input information and calling / receiving number information, transmitting / receiving units 14, 34 for making calls, and a memory 1 for storing programs.
3 and 33, CPUs 12 and 32 for executing programs and controlling voice and data communication, and data INF units 15 and 35 for connecting data communication with the wireless communication terminals 1 and 7, respectively.

Base stations 3 and 5 are ISDN networks (PHS networks)
Data communication and circuit-switched data communication with the P.4 and the line INFs 19 and 25, and wireless transmission / reception units 17 and 23 having antennas 16 and 22 capable of simultaneous transmission and reception in two slots (two channels); A protocol control unit 18 or 24 for selecting a data communication means with the network 4 and converting the data into a PIAFS procedure, memories 21 and 27 for storing programs, and a CPU 2 for executing programs.
0, 26.

Next, the operation of this embodiment will be described. FIG. 2 is a sequence diagram of the embodiment. The call connection before data communication will be described with reference to FIGS. When the wireless communication terminal 1 performs data communication with the wireless communication terminal 7, a call request including the data communication amount as information from an application that performs data communication from the wireless communication terminal 1 to the PHS portable terminal 2. (Step S1 in FIG. 2).

Upon receiving a call request from the data INF unit 15 of the PHS portable terminal 2, the CPU 12 executes the program stored in the memory 13, displays the called party number on the LCD,
According to a well-known procedure, a link is established by the PIAFS procedure of layer 1 and layer 2 via the wireless transmission / reception unit 9 and the ANT 8, and the call setting information of layer 3 is transmitted to the base station 3. The data amount of data communication is inserted in the user / user information of the call setting information (step S2 in FIG. 2).

The CPU 20 of the base station 3 uses the program stored in the memory 21 to control the antenna 16 and the transmitting / receiving unit 1.
7 and the base station 3 from the call setup information received via ISDN.
A data communication means with the network 4 is selected by the protocol control unit 18. The protocol control unit 18 compares the communication data amount of the user / user information of the call setting information with a preset data amount threshold value. If the communication data amount is small, the data communication means is selected as a D channel packet. If the number is larger than the threshold value, communication using the B channel and multilink communication using two B channels are selected.

If the amount of data communication is smaller than the threshold value, the CPU 20 of the base station 3 establishes a packet communication data link with the ISDN network 4 through the line INF 19 by a LAPD calling procedure (D channel packet) using the D channel. A packet type access connection between the base station 3 and the ISDN 4 is set (step S3 in FIG. 2). The ISDN network 4 sends out call setting information for terminating the call to the base station 5 (step S4 in FIG. 2). The base station 5 is connected to the line INF unit 2
(5) The response information is sent to the ISDN network to perform packet communication on the D channel in response to the call setting information, and the layer 3 call control is completed. Becomes possible (step S in FIG. 2).
5, S6).

Here, the base station 3 sends response information to the PHS portable terminal 2 to enable connection of the data communication channel between the base station 3 and the PHS portable terminal 2 (step S7 in FIG. 2). The CPU 26 of the base station 5 transmits the incoming call information to the wireless transmitting / receiving unit 23, ANT2 by a program stored in the memory.
2 to the PHS portable terminal 6 (step S8 in FIG. 2). The CPU 32 of the PHS portable terminal 6 is ANT2
8. LCD unit 30 based on incoming information from wireless transmission / reception unit 29
The caller ID is displayed at the same time, and the incoming information is notified to the wireless data terminal 7 via the data INF unit 35 (step S9 in FIG. 2).

When the CPU 32 of the PHS portable terminal 6 receives the response information from the wireless communication terminal 7 from the data INF unit 35, the CPU 32 of the PHS portable terminal 6 notifies the base station 5 of the response information via the transmitting / receiving unit 29 and the ANT 28. The data communication channel between the stations 5 is connected (step S10 in FIG. 2). Here, data communication between the wireless communication terminal 1 and the wireless communication terminal 7 becomes possible (step S11 in FIG. 2).

Next, when the data traffic is larger than the threshold value, the CPU of the base station 3 selects the line switching by the B channel, and further switches the line INF by the D channel control signal.
The call setting information for setting the line communication bus with the ISDN network 4 is transmitted to the ISDN network 4 via the interface 19 (step S12 in FIG. 2). The ISDN network 4 sends out call setting information for the incoming call to the base station 5 (step S13 in FIG. 2). The CPU 26 of the base station 5 sends the response information to the incoming information according to the program stored in the memory to the line INF unit 25. Is transmitted to the base station 3 via the ISDN network 4 (step S14 in FIG. 2). Base station 3, ISDN network 4, base station 5
The connection by the B channel between the two becomes possible (step S15 in FIG. 2).

Here, the base station 3 sends response information to the PHS portable terminal 2 to enable connection of the data communication channel between the base station 3 and the PHS portable terminal 2 (step S16 in FIG. 2). In addition, the CPU 26 of the base station 5 transmits the incoming call information to the wireless transmitting / receiving unit 23 according to the program stored in the memory.
The data is transmitted to the PHS portable terminal 6 via the ANT 22 (FIG. 2).
Step S17). The CPU 32 of the PHS mobile terminal 6 uses the ANT 28 and the LC
The caller number is displayed on the D section 30 and the data IN
Incoming information is notified to the wireless communication terminal 7 via the F unit 35 (step S18 in FIG. 2).

CPU 12 of PHS portable terminal 2 is ANT
8. The response information is displayed on the LCD unit 10 from the response information from the wireless transmission / reception unit 9, and the incoming information is notified to the wireless data terminal 1 via the data INF unit 15 (step S19 in FIG. 2). Here, communication between the wireless communication terminal 1 and the wireless communication terminal 7 becomes possible (step S20 in FIG. 2).

Next, the operation at the time of data communication will be described. First, the case where data communication between base stations is packet communication using the D channel will be described. The data from the application software of the wireless communication terminal 1 is transferred to the PHS portable terminal 2
CPU 12 received via the data INF unit 15 of the wireless communication unit 9 and the ANT 8
To the base station 3 via.

The ANT 16 of the base station 3 and the radio transceiver 17
CPU2 that has received data according to the PIAFS procedure from
0 is converted to packet data by the protocol controller 18 and D
The packet communication by the channel is performed with the ISDN network 4. In the communication between the exchange 4 on the receiving side and the base station 5, data is transmitted and received by packet communication using the D channel, similarly to the transmitting side. The CPU 26 of the base station 5 converts the packet data into PI
The data is converted into communication means by AFS by the protocol control unit 24 and transmitted to the PHS portable terminal 6 via the wireless transmission / reception unit 23 and the ANT 22.

The CPU 32 of the PHS portable terminal 6 is ANT2
8. The data from the wireless transmission / reception unit 29 is transmitted to the wireless communication terminal 7 via the data INF unit, and delivered to the application software of the wireless communication terminal 7.

Next, a case in which data communication between base stations is line communication using the B channel will be described. Wireless communication terminal 1
CPU 1 that has received the data from the application software through the data INF unit 15 of the PHS portable terminal 2
2 is a communication means by PIAFS, wireless transmission / reception section 9, AN
It transmits to the base station 3 via T8. ANT1 of base station 3
6. The CPU 20 that has received the data according to the PIAFS procedure from the wireless transmission / reception unit 17 uses the protocol control unit 18 to insert the data into the ISDN B channel (either B1 or B2) set in the line connection procedure.

In the communication between the ISDN network 4 on the receiving side and the base station 5, data is inserted into the B channel set in the same manner as on the transmitting side. The CPU 26 of the base station 5 transmits the received B channel data to the communication means by PIAFS to the protocol control unit 24.
, And P via the wireless transmission / reception unit 23 and the ANT 22
The data is transmitted to the HS portable terminal 6. CPU of PHS portable terminal 6
32 transmits data from the ANT 28 and the wireless transmission / reception unit 29 to the wireless communication terminal 7 via the data INF unit, and transfers the data to the application software of the wireless communication terminal 7.

Another embodiment of the present invention will be described. Its basic configuration is as described above, except that the base station and ISDN
By performing data communication using a B channel packet as a data communication means with the network, it is possible to perform a larger amount of data communication than packet communication using the D channel only by using one B channel of ISDN. .

As a means for communicating data between the base station and the ISDN network, by using a plurality of ISDN lines in addition to multilink communication using one and a plurality of B channels, a large amount of high-speed data can be obtained. Can communicate. Furthermore, in addition to the notification of the amount of data communication from the wireless communication terminal to the PHS portable terminal, it is also possible to manually set the amount of data communication by operating a button of the PHS portable terminal.

Furthermore, not only is the total amount of data communication inserted into the user information of the call setting information from the PHS portable terminal, but also the communication protocol between the base station and the ISDN network and the type of data transmission procedure are inserted. It is also possible to determine the protocol and the transmission procedure.

[0037]

As described above, according to the present invention,
A PHS mobile terminal having a PIAFS data transmission procedure is used for transmitting and receiving a plurality of wireless communication channels (slots), and the total amount of data to be communicated to the PHS mobile terminal from application software installed in the wireless communication terminal is notified. The base station compares the total data amount with the threshold value, and provides a protocol control unit for selecting and converting the ISDN network and the data communication means according to the comparison result to perform data communication between the wireless communication terminals. A PHS data communication can be performed with a simple connection that does not require a distribution unit that distributes data to be transmitted and a plurality of PHS portable terminals. Further, since the equipment is simplified, there is an effect that the equipment and the equipment cost can be reduced.

Further, by eliminating the need for a plurality of PHS portable terminals, it is possible to effectively use a wireless communication channel during data communication. This is effective in reducing communication costs.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a PHS data communication system according to an embodiment of the present invention.

FIG. 2 is a sequence diagram illustrating an operation of the exemplary embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a conventional data communication system (PHS data multiplex communication device).

[Explanation of symbols]

 1,7 Wireless communication terminal 2,6 PHS portable terminal 3,5 Base station 4 ISDN network (PHS network) 8,16,22,28 Antenna 9,17,23,29 Wireless transmitting / receiving unit 10,30 LCD 11,31 Operation Units 12, 20, 26, 32 CPUs 13, 21, 27, 33 Memory 14, 34 Transmitter / receiver unit 15, 35 Data INF unit 18, 24 Protocol control unit 19, 25 Line INF unit

Claims (6)

[Claims] 1. A data communication terminal capable of transmitting and receiving data, and a PHS for wirelessly transmitting data from the data communication terminal and transmitting wirelessly received data to the data communication terminal.
A PHS data communication system including a mobile terminal and a base station for wirelessly relaying data between the PHS mobile terminal and an ISDN network, wherein the PHS mobile terminal transmits transmission data transmitted from the data communication terminal. And a means for notifying the base station of a total amount of the ISDN network according to the total amount of the transmission data notified from the PHS portable terminal. PHS data communication system. 2. The PHS data communication system according to claim 1, wherein said PHS portable terminal inserts a total amount of said transmission data into a call setting information section and transmits said call setting information section. 3. The PHS portable terminal according to claim 2, wherein said PHS portable terminal inserts a total amount of said transmission data into user / user information of said call setting information section and transmits a message. Data communication system. 4. The PHS data according to claim 1, wherein said base station selects a B channel of said ISDN network when a total amount of said transmission data is larger than a predetermined value. Communications system. 5. The PHS data according to claim 1, wherein the base station selects the D channel of the ISDN network when the total amount of the transmission data is smaller than a predetermined value. Communications system. 6. The PHSFS (PHS Internet Access Forum Standard) from the PHS portable terminal.
6. The PHS data communication system according to claim 1, further comprising means for converting a control procedure into packet data and circuit switching data.