JP2001237885A - Communication system employing phs data communication card and communication control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system using a PHS data communication card that makes communication with two communication paths at the same time and is connected to a communication path needing a high communication speed. SOLUTION: In the case of making communication with an Internet provider 70 contained in an ISDN 60 from a personal computer 10 mounted with a PHS data communication card 20, the PHS data communication card uses a private radio channel to make a connection request to master set 30 and to make a connection request to a base station 50, and selects a communication path with a fast communication speed and connects thereto with priority on the basis of current channel operation information returned from a master unit and the base station.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system using a PHS card, and more particularly to a communication system for selecting a communication path having a high communication speed when connecting to the Internet.

[0002]

2. Description of the Related Art Conventionally, as this kind of communication system, P
An IC card unit including a CCMIA interface unit, a memory storing connection destination identification information, an IC card control unit for controlling an IC card, and an interface unit corresponding to an infrastructure is connected to a plurality of infrastructures connected to the system device in a multipoint manner. The IC card control unit, which is mounted between the corresponding unit and the receiving unit via the PCMCIA interface unit, receives the designation of the used infrastructure corresponding unit and the data communication start command input from the system device, and searches the memory for the specified. A communication system that detects infrastructure identification information, compares it with designated infrastructure identification information, selects a matching infrastructure corresponding unit, and transmits information from the selected infrastructure corresponding unit to an external infrastructure via an antenna, for example, Kaihei 07-
No. 234922 (first prior art).

As described above, according to the first prior art, the IC card unit is not replaced for one infrastructure network arbitrarily set from a plurality of infrastructure networks by command control or the like for each call from the system device side. Data communication is enabled by the same system device.

A PCMCIA section, a radio section including a memory for storing communication protocol type information, a PCMCIA card type mobile device equipped with an IC card including an antenna, a PCMCIA slot section, and a data communication section. It comprises a control unit including a memory for storing a plurality of communication protocol control information to be used, and an information terminal having data input / output, display and editing processing means. Upon detecting insertion into the PCMCIA slot of the terminal, communication protocol type information to be used is received from the memory of the mobile device, a corresponding communication protocol is selected from the memory of the control unit, and data communication using the selected communication protocol is performed. PCMCI to start
An A card type mobile unit system is disclosed in, for example,
No. 4171 (second prior art).

As described above, in the second prior art, a PCMCIA card having an antenna section and a radio section of a mobile device is connected to a portable personal computer (personal computer) as an information terminal, and control of a communication protocol is performed by software of the personal computer. By doing so, the functions of the mobile device can be reduced to a minimum, the cost can be reduced, the size can be reduced, and the frequency of the PHS and the mobile phone can be supported by changing the radio unit and the communication protocol. This enables data communication using any of a plurality of communication protocols.

In addition, when a PIAFS is mounted on an ISDN terminal adapter and a PHS to perform data communication with a partner terminal via a communication line, a bulk function is added to the PIAFS communication so that simultaneous use of a plurality of channels, outgoing / incoming, and termination are performed. Japanese Patent Application Laid-Open No. H11-027 discloses a data communication device that enables the number of used channels to be changed and the number of used channels to be changed depending on the amount of communication to increase the speed and efficiency of data communication.
No. 740 (third prior art).

[0007] As described above, the third conventional technique is PIAFS.
A plurality of channels are used at the same time by the bulk communication means added to (1), and the number of simultaneously used channels is adjusted depending on the call connection / termination or the traffic.

[0008]

In the first prior art, an IC card unit is provided to one infrastructure network arbitrarily set from a plurality of infrastructure networks by command control or the like for each call from the system device side. This enables data communication by the same system device without replacement, and does not simultaneously transmit a plurality of communication paths to the same called party.

[0009] A second prior art is an antenna unit of a mobile device,
By connecting a PCMCIA card having a wireless unit to a portable personal computer (personal computer) as an information terminal, and controlling the communication protocol with software of the personal computer, the functions of the mobile device can be reduced to a minimum and cost can be reduced. By reducing the size and changing the radio unit and the communication protocol, it is possible to support the frequency of PHS and mobile phones, that is, data communication can be performed using one communication protocol of a plurality of communication protocols with one interface. And does not simultaneously transmit to the same called party through a plurality of communication paths.

A third conventional technique uses a plurality of channels at the same time by bulk communication means added to the PIAFS, and adjusts the number of simultaneously used channels depending on a call connection / termination or a communication amount. It does not transmit to the same called party over multiple communication paths simultaneously.

It is an object of the present invention to simultaneously transmit a call to two communication paths at the time of transmission and connect to a communication path having a high communication speed.
An object of the present invention is to provide a communication system using an HS data communication card.

[0012]

SUMMARY OF THE INVENTION A communication system using a PHS data communication card according to the present invention comprises:
When a PHS data communication card is attached to an information terminal having a display and editing function and an Internet provider of the same destination accommodated in an ISDN network is accessed, the ISD is used.
Sending simultaneously to multiple communication paths accommodated in the N network,
It is characterized by having a communication path selecting means for preferentially selecting a communication path having the fastest communication speed.

[0013] Further, the information terminal is a personal computer having card connection means capable of detachably connecting the PHS data communication card.

[0014] The PHS data communication card may further include a transmitting means for simultaneously transmitting a plurality of communication paths to the same destination, a communication speed determination information storage means, a communication speed determination means for the plurality of communication paths, Communication path selection means for selecting the communication path having the highest communication speed based on the result of the determination by the communication speed determination means; and PIAHS (PHS Int
ernet Access Forum Standa
rd) procedure control means, PHS interface means,
PCMCIA (Personal Computer)
Memory Card International
Association) interface means and P
IAHS control program storage means, a baseband unit, a radio unit, an antenna unit, and a control unit that controls the entire system are provided.

The PHS data communication card is connected to the card connection section of the information terminal via the card connection section PCMCIA interface means.
A connection cable is connected to an external PHS through the PHS interface means.

Also, the information terminal for connecting the PHS data communication card to the card connection means via the PCMCIA interface means, and a master unit connected to a parent device via an independent wireless channel via an antenna section of the PHS data communication card. , The PHS connected by a connection cable via the PHS interface means, a base station connected to the PHS via a public wireless channel, the master station, the base station, and the Internet provider. An ISDN network, and when accessing the Internet provider, simultaneously executes a calling process via the private radio channel and the public radio channel to select a communication path having the highest communication speed and form a data transmission path. It is characterized by doing.

According to the communication control method of the present invention, when an outgoing request call to an Internet provider input from an information terminal is generated, a communication between the master unit and the second communication path is performed via a private communication channel which is a first communication path. A first step of simultaneously transmitting to a base station via a public wireless channel, and a current channel use state returned from the master unit and the base station via a first communication path and a second communication path The method includes a second step of comparing information with communication speed discrimination information stored in advance to select a communication path with a high communication speed, and a third step of releasing a communication path with a low communication speed. I do.

In the second step, both of the first communication path and the second communication path may be set to 6
A fourth step of determining whether 4K PIAFS communication is possible, a fifth step of determining whether or not a priority connection path is set when both communication paths are capable of 64K PIAFS communication, A sixth step of connecting to the set communication path when the setting is made and releasing the wireless channel of the other communication path; and connecting to a connection path having a small communication fee or communication delay time when no priority connection path is set. ,
A seventh step of releasing the wireless channel of the other communication path, and connecting to the communication path when either one of the first communication path and the second communication path can perform 64K PIAFS communication. And an eighth step of releasing the wireless channel of the other communication path.

A ninth step of determining whether 32K PIAFS communication is possible when 64K PIAFS communication is impossible for both the first communication path and the second communication path, A first method for determining whether or not a priority connection path has been set when PIAFS communication of 32K is possible for both communication paths
0, an eleventh step of connecting to the set communication path when the priority connection path is set, and releasing the wireless channel of the other communication path, and a communication charge or communication when the priority connection path is not set. A twelfth step of connecting to a connection path with a small delay time and releasing the wireless channel of the other communication path, and wherein one of the first communication path and the second communication path has a 32K PIAFS
A twelfth step of connecting to the communication path when communication is possible and releasing the wireless channel of the other communication path, and setting both the first communication path and the second communication path to 3
And a thirteenth step of terminating the transmission process when the 2K PIAFS communication is not possible.

[0020]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a main configuration of the present invention, FIG. 2 is a block diagram showing a configuration of a PHS data communication card, and FIGS. 3 and 4 are flowcharts of a calling connection process.

As shown in FIG. 1, a communication system using a PHS data communication card according to the present invention includes a personal computer 10 having a card connection section (not shown) to which a PHS data communication cart is detachable, and a personal computer 10 PHS detachably attached to the card connection part of
Data communication card 20 and PHS data communication card 20
And a PHS connected to the PHS by a private wireless channel
A PHS 40 connected to the data communication card 20 by wire (connected by a connection cable 80); a base station 50 connected to the PHS 40 via a public wireless channel; a master unit 30 and the base station 50; 1
The network is composed of an ISDN network 60 connected by an Internet service provider 00 and an Internet provider 70 connected by the ISDN network 60 and an ISDN line or a telephone line 110.

As shown in FIG. 2, the PHS data communication card 20 has a RAM 2 serving as a work area of the CPU.
A ROM 22 in which a program for controlling the operation of the present system is stored, and communication speed discrimination information for communicating at a higher speed and communication fee information corresponding to a communication path are registered; And a PIAFS (PH) that controls data communication with the PHS 40 and the wireless unit 26.
S Internet Access Forum S
standard) control unit 24, a baseband unit 25 including A / D, D / A conversion function, codec processing function and the like to perform signal processing necessary for PHS, and a base station using a self-operated wireless channel. Radio unit 26 for transmitting and receiving various information
, An antenna 27, and a PCMCIA (Personal) for attaching to a card connection of a personal computer.
Computer Memory Card Int
and a PHS interface unit 29 for connecting to a PHS via a connection cable.

Also, a RAM 21, a ROM 22, a CPU 2
3. The PIAFS control unit 24 and the baseband unit 25 are connected by an internal bus.

Next, referring to FIG. 3 and FIG. 4 together with FIG. 1 and FIG.

The user connects the PCMCI of the PHS data communication card 20 to the card connection of the personal computer 10.
A interface unit 28 is inserted, and the PHS interface unit 29 is connected to the PHS
40, and inputs the telephone number of the desired provider 70 (step S101 in FIG. 3).

The PHS data communication card 20 transmits connection request information (channel setting request) to the provider 70 to the parent device 30 in a predetermined format by using a private radio channel via the antenna 27 to transmit to the provider 70. Send.

At the same time, the connection request information is also transmitted to the PHS 40 via the connection cable 80, and the PHS 40 transmits the connection request information (channel setting request) to the base station 50 using a public radio channel in a predetermined format. (S102).

Master device 30, upon receiving the connection request information, searches the current channel use state, detects the presence or absence of a vacant channel, and transmits the vacant channel information to PHS data communication card 20.
Reply to When receiving the connection request information, the base station 50 similarly searches the current channel use state, detects the presence or absence of a free channel, and returns the free channel information to the PHS data communication card 20 via the PHS 40.

The PHS data communication card 20 is
When the free channel information returned from the PHS 40 and the free channel information returned from the PHS 40 are received, the wireless connection state is confirmed based on the communication speed determination information stored in the ROM 22 in advance (S103).

The confirmation of the wireless connection state is performed by first checking the PHS
Communication path from data communication card 20 to base unit 30 to ISDN network 60 (hereinafter referred to as base unit side path) and PHS data communication card 2
0 to PHS 40 to base station 50 to ISDN network 60 (hereinafter referred to as PHS side path) 64K PI in both communication paths
It is determined whether AFS communication is possible (S104).

If the result of determination in step S104 is that 64K PIAFS communication is possible for both paths, the ROM
It is determined whether or not the priority connection setting route information stored in 22 is registered (S108).

If the result of the determination in step S108 is that the priority connection setting route information has been registered, the connection is made to the registered priority connection setting route (for example, the master device side route) and the other route (for example, the PHS side route) is connected. The wireless channel is released (S109).

If the result of the determination in step S108 is that there is no registration of the preferential connection setting route information, a connection is made to a route having a low communication fee by referring to the communication fee information stored in the ROM 22, and the wireless channel of the other route is set. Release (S
110), when the called party (provider 70) answers (S
113), and start communication (S114).

If the result of the determination in step S104 is that any of the paths cannot perform PIAFS communication with 64K, then it is determined whether or not PIAFS communication with a parent device side of 64K is possible (S105).

If the result of determination in step S105 is that the PIAFS communication with the parent device side route of 64K is possible, the connection to the parent device side route is established, the radio channel of the PHS side route is released (S111), and the destination (provider 70 ) Responds (S113), communication starts (S114).

If the result of determination in step S105 is that PIAFS communication with the parent device side route of 64K is not possible, then it is determined whether or not PIAFS communication with the PHS side route of 64K is possible (S106).

When the determination result in step S106 is P
P if the HS side route is capable of 64K PIAFS communication
It connects to the HS-side route, releases the wireless channel of the master-side route (S112), and when the destination (provider 70) responds (S113), starts communication (S114).

When the result of the determination in step S106 is P
If the PIAFS communication with the HS side route of 64K is not possible,
Since 64K PIAFS communication is not possible for both the parent device side route and the PHS side route (S107), the process proceeds to a determination process as to whether 32K PIAFS communication is possible as shown in FIG.

In step S107 (FIG. 3), if 64K PIAFS communication is impossible for both the parent device side route and the PHS side route, the 32K PIAFS communication continues on both the parent device side route and the PHS side route. Is determined (Step S201 in FIG. 4).

If the result of determination in step S201 is that 32K PIAFS communication is possible for both paths, the ROM
It is determined whether or not the priority connection setting route information stored in No. 22 has been registered (S205).

If the result of the determination in step S205 is that the priority connection setting path information has been registered, the connection is made to the registered priority connection setting path (for example, the master unit-side path), and the other path (for example, the PHS-side path) is connected. The wireless channel is released (S206).

If the result of the determination in step S205 is that the priority connection setting path information has not been registered, the connection is made to a path having a lower communication charge by referring to the communication charge information stored in the ROM 22, and the wireless channel of the other path is set. Release (S
207), when the called party (provider 70) responds (S
210), communication is started (S211).

If the result of determination in step S201 is that PIAFS communication of any route is not 32K, then it is determined whether PIAFS communication of the parent device side route is 32K (S202).

If the result of determination in step S202 is that PIAFS communication with a parent device side route of 32K is possible, connection is made with the parent device side route, the radio channel of the PHS side route is released (S208), and the destination (provider 70) ) Responds (S210), communication starts (S211).

If the result of determination in step S202 is that PIAFS communication with the parent device side route of 32K is not possible, then it is determined whether or not PIAFS communication with the PHS side route of 32K is possible (S203).

If the result of the determination in step S203 is P
P if the HS side route is capable of 32K PIAFS communication
It connects to the HS-side route, releases the wireless channel of the master-side route (S209), and when the destination (provider 70) responds (S210), starts communication (S211).

If the determination result in step S204 is P
If the PIAFS communication with the HS side route of 32K is not possible,
Since the PIAFS communication of 64K and 32K is impossible for both the parent device side route and the PHS side route (S204), the outgoing connection process ends.

As a result, all the radio channels of the parent device side route and the PHS side route are released, and a standby state is established.

As described above, the personal computer 10
When accessing the Internet provider 70 from
Transmission processing is simultaneously performed on two communication paths, the master unit path and the PHS side path, and a communication path with a higher communication speed is determined based on the current connection state information (free channel information) of the master unit path and the PHS side path. By making a selection, high-speed communication can be realized.

For example, when the user desires PIAFS communication of 64K and requests one additional channel of 32K, the parent device 30 responds to the additional channel request from the PHS data communication card 20, If two independent wireless channels can be secured between the PHS 40 and the base station 50, while the additional channel allocation is rejected by the base station 50 and only one public wireless channel can be secured between the PHS 40 and the base station 50, Since 64K PIAFS communication with the base unit 30 is possible, data communication is performed by preferentially selecting the base unit side route, and the public wireless channel of the PHS side route is released.

[0051]

As described above, the communication system using the PHS data communication card and the communication control method according to the present invention provide a base unit side route and a PHS side route when accessing an Internet provider accommodated in an ISDN. Outgoing call processing is simultaneously performed for the two communication paths using the private radio channel and the public radio channel, and the base station side path and the PHS
High-speed communication can be realized by selecting a communication path with a high communication speed based on the current connection state information (vacant channel information) of the side path.

When a communication path is selected, 64
It checks whether PIAFS communication of K is possible or not. If both communication paths are capable of PIAFS communication of 64K, any communication path is connected according to preset priority connection information, so a desired communication path is used. High speed communication becomes possible.

When PIAFS communication of 64K is not possible in either of the two communication paths, a communication path that can be communicated is automatically selected and connected. The trouble of re-transmitting to the other communication path can be avoided.

If 64K PIAFS communication is not possible, it is checked whether 32K PIAFS communication is possible.
64K PI
When AFS communication is not possible, a retransmission operation for 32K PIAFS communication is not required.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main configuration of the present invention.

FIG. 2 is a block diagram showing a main configuration of a PHS data communication card of the present invention.

FIG. 3 is a flowchart of an outgoing connection process of the present invention.

FIG. 4 is a flowchart of an outgoing connection process of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Personal computer 20 PHS data communication card 21 RAM 22 ROM 23 CPU 24 PIAFS control unit 25 Baseband unit 26 Radio unit 27 Antenna 28 PCMCIA interface unit 29 PHS interface unit 30 Base unit 40 PHS 50 Base station 60 ISDN network 70 Internet provider 80 Connection cable 90 ISDN line or telephone line 100 ISDN line or telephone line 110 ISDN line or telephone line

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) H04M 11/00 303 H04L 13/00 307A 9A001 F term (reference) 5K030 HC04 JT09 KA04 LB02 LB05 5K033 CB01 DA19 DB04 5K034 EE03 EE13 FF11 FF13 KK21 LL01 MM08 5K067 AA14 BB04 BB21 EE02 EE04 GG01 GG06 HH05 JJ72 5K101 LL02 LL03 LL12 NN05 QQ12 RR12 9A001 BB06 CC02 CC04 CC05 EE05 JJ12 JJ25

Claims (8)

[Claims] 1. An information terminal having data input / output, display, and editing functions, wherein a PHS data communication card is attached to an information terminal.
Communication path selection for simultaneously accessing a plurality of communication paths accommodated in the ISDN network when accessing the same destination Internet provider accommodated in the N network, and preferentially selecting the communication path with the fastest communication speed Communication system using a PHS data communication card. 2. The communication system using a PHS data communication card according to claim 1, wherein said information terminal is a personal computer having card connection means capable of detachably connecting said PHS data communication card. . 3. The PHS data communication card includes: a transmitting unit for simultaneously transmitting a plurality of communication routes to the same destination; a communication speed determination information storage unit; a communication speed determination unit for the plurality of communication routes; Communication path selecting means for selecting the communication path having the highest communication speed based on the result of the determination by the communication speed determining means; and a PIAHS (PHS Inter).
net Access Forum Standard
d) procedure control means, PHS interface means, P
CMCIA (PersonalComputer Me
more Card International A
ssociation) interface means and PIA
2. The communication system using a PHS data communication card according to claim 1, further comprising an HS control program storage unit, a baseband unit, a radio unit, an antenna unit, and a control unit that controls the entire control. 4. The PHS data communication card is connected to the card connection part of the information terminal via the card connection part PCMCIA interface means, and is connected to an external device using a connection cable via the PHS interface means. 2. A connection to a PHS.
A communication system using the PHS data communication card described in the above. 5. The PHS data communication card is connected to the PC.
An information terminal connected to the card connection means via MCIA interface means, a base unit connected via a private wireless channel via an antenna section of the PHS data communication card, and a connection cable connected via the PHS interface means; The PHS to be connected, a base station connected to the PHS via a public wireless channel, and an ISDN network accommodating the master unit, the base station, and the Internet provider, respectively. 2. The data transmission path according to claim 1, wherein, when accessing, a transmission process is performed simultaneously through the private radio channel and the public radio channel, and a communication path having the highest communication speed is selected to form a data transmission path. A communication system using a PHS data communication card. 6. When an outgoing call to the Internet provider is input from an information terminal, a call is made to the parent device via a private wireless channel which is a first communication path and a public wireless channel which is a second communication path. First transmitting simultaneously to the base station, and storing in advance current channel use state information returned from the master unit and the base station via a first communication path and a second communication path. A communication control method, comprising: a second step of selecting a communication path having a high communication speed by comparing the communication path identification information with a predetermined communication speed determination information; and a third step of releasing a communication path having a low communication speed. 7. The method according to claim 2, wherein in the second step, the first
Both the communication path of the second communication path and the communication path of the second communication path are 64K
A fourth step of determining whether or not a PIAFS communication is possible, a fifth step of determining whether or not a priority connection path is set when both communication paths are capable of 64K PIAFS communication, and a setting of a priority connection path A sixth step of connecting to the set communication path when the communication path is set and releasing the wireless channel of the other communication path; and connecting to a connection path with a small communication fee when the priority connection path is not set, and connecting to the other communication path. A seventh step of releasing the wireless channel of the first communication path, and one of the first communication path and the second communication path
8. The communication control method according to claim 6, further comprising the step of: connecting to the communication path when 4K PIAFS communication is possible, and releasing a wireless channel of the other communication path. 8. A ninth step of determining whether 32K PIAFS communication is possible when 64K PIAFS communication is not possible for both the first communication path and the second communication path, A tenth step of determining whether or not a priority connection path has been set when PIAFS communication of 32K is possible for both communication paths; and connecting to the communication path set when a priority connection path has been set, and wirelessly connecting the other communication path. An eleventh step of releasing a channel, a twelfth step of connecting to a connection path having a low communication fee when no priority connection path is set, and releasing a wireless channel of the other communication path, and the first communication path A twelfth step of connecting to the communication path when one of the communication paths of the second communication path is capable of 32K PIAFS communication and releasing the wireless channel of the other communication path. 8. A method according to claim 7, further comprising: a thirteenth step of terminating the transmission processing when 32K PIAFS communication is impossible for both of the first communication path and the second communication path. Communication control method.