JP4593436B2 - Wireless communication system, IP-compatible PHS base station, registration destination holding method, and program thereof - Google Patents

Description

  The present invention relates to a wireless communication system, an IP-compatible PHS base station, a registration destination holding method, and a program thereof, and more particularly, to an IP (Personal Handy-phone System) -compatible PHS (Personal Handy-phone System) base station.

  With the spread of IP Centrex that provides a PBX (Private Branch eXchange) function via an IP network, there is an increasing number of configurations that introduce and configure an IP-PBX in a communication network within / between corporate bases (for example, Patent Document 1).

  Thus, considering the introduction of IP-PBX, an increase in traffic, the addition of installation bases, and the improvement of the reliability and redundancy of the IP network, the addition of IP-PBX is inevitable.

  The conventional IP-compatible PHS base station system lacks the flexibility to add the IP-PBX as described above. Therefore, the convenience of the registration-destination IP-PBX setting method and the registration destination in the event of a failure occur. There is a need to establish a procedure for IP-PBX reselection.

JP 2004-343437 A

  In the above-described conventional IP-compatible PHS base station, registration is performed by directly connecting an IP-PBX address that can be registered to the base station via telnet and inputting the IP address directly from the console. There is a need.

In this method, when IP-PBX is configured redundantly,
・ It takes time and effort to directly input IP addresses of a plurality of IP-PBXs (primary nodes, secondary nodes,...). ・ When registration-capable IP-PBXs are added, all corresponding IP-compatible PHS base stations There is a problem that an input error may occur when trying to prepare different settings for each IP-compatible PHS base station.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems, simplify registration of an IP-PBX address that can be registered, and prevent an input error when registering the address. An IP-compatible PHS base station, a registration destination holding method, and a program thereof are provided.

A radio communication system according to the present invention includes an IP (Internet Protocol) -compatible PHS (Personal Handy-phone System) base station and an IP-PBX (Private Branch exchange) that can be registered by the IP-compatible PHS base station. A system,
A distribution server that distributes an IP address list of the IP-PBX that can be registered;
The IP-compatible PHS base station transmits a request signal for requesting distribution of the IP address list to the distribution server at the time of activation, and an IP− at the head of the IP address list distributed from the distribution server. Means for performing registration using the PBX address as a registration destination.

An IP-compatible PHS base station according to the present invention is an IP-compatible PHS (Personal Handy-phone System) base station that performs registration to IP (Internet Protocol) -PBX (Private Branch eXchange),
Means for transmitting a request signal for requesting distribution of the IP address list to a distribution server that distributes the IP address list of the IP-PBX that can be registered at startup; and the IP address list distributed from the distribution server Means for performing the registration using the IP-PBX address at the beginning of the registration as a registration destination.

A registration destination holding method according to the present invention includes a PHS (Personal Handy-phone System) base station that supports IP (Internet Protocol) and an IP-PBX (Private Branch exchange) that can be registered by the IP-compatible PHS base station. A registration destination holding method used in a wireless communication system,
Providing a distribution server for distributing an IP address list of the IP-PBX capable of registration;
The IP-compatible PHS base station transmits a request signal for requesting distribution of the IP address list to the distribution server at the time of activation, and the IP− at the head of the IP address list distributed from the distribution server Registration processing is performed using the PBX address as the registration destination.

The registration destination holding method program according to the present invention includes an IP (Internet Protocol) -compatible PHS (Personal Handy-phone System) base station, an IP-PBX (Private Branch exchange) that can be registered by the IP-compatible PHS base station, and A registration destination holding method program for use in a wireless communication system including:
Providing a distribution server for distributing an IP address list of the IP-PBX capable of registration;
A process of transmitting a request signal for requesting distribution of the IP address list to the distribution server at startup to the computer of the IP-compatible PHS base station, and at the head of the IP address list distributed from the distribution server The registration processing is executed using the IP-PBX address as the registration destination.

  That is, the wireless communication system of the present invention provides an IP address list of IP-PBX (Private Branch eXchange) that can be registered by a corresponding base station in an IP (Internet Protocol) -compatible PHS (Personal Handy-phone System) base station. By placing the server to be distributed, a list of IP-PBXs that can be registered when the base station is activated is received, and the convenience in the case of redundantly configuring the IP-PBX is enhanced.

  More specifically, in the wireless communication system of the present invention, a server for distributing an IP address list (hereinafter referred to as an address list distribution server) is registered in advance in an IP compatible PHS base station, and the IP compatible PHS base An address list distribution request signal is transmitted to the address list distribution server registered when the station is activated.

  In response to this address list distribution request, the address list distribution server returns an IP address list of the IP-PBX that is the registration destination of the IP-compatible PHS base station. This IP address list stores IP addresses in the order of priority at the time of registration from the top, and the IP-compatible PHS base station performs registration using the IP-PBX address at the top of the IP address list as a registration destination. When registration with the IP-PBX is successful, the IP-compatible PHS base station enters an operation state.

  During operation of the IP-compatible PHS base station, a health check signal is periodically received from the registered IP-PBX, but if this health check signal cannot be received for a certain period of time, the IP-compatible PHS The base station determines that some kind of failure (communication failure with IP-PBX, failure of IP-PBX itself, etc.) has occurred and restarts autonomously.

  After the restart, the IP-compatible PHS base station tries to register with the IP-PBX at the top of the IP address list again. If this registration fails, the IP-compatible PHS base station uses the second IP-PBX in the IP address list as the next candidate and executes registration for that IP-PBX.

  Thereby, in the wireless communication system of the present invention, it is possible to simplify the setting to the IP-compatible PHS base station. Even if it is desired to register a plurality of registration destinations, the IP address to be registered in the IP-compatible PHS base station is only the IP address of the IP address list distribution server, and a plurality of IP-PBXs (primary node, secondary node,...) It is possible to save the trouble of directly inputting the IP address.

  In the wireless communication system of the present invention, the flexibility of the IP-PBX configuration can be improved. In the conventional method, when an IP-PBX that can be registered is added, it is necessary to add registration to all corresponding IP-compatible PHS base stations. In the wireless communication system of the present invention, it is possible to receive an IP address list including the newly added IP-PBX address that can be registered from the IP address list distribution server simply by restarting the IP-compatible PHS base station. It becomes possible.

  In this case, in the wireless communication system of the present invention, it becomes unnecessary to individually add settings to each IP-compatible PHS base station, so that the expandability of the system can be improved. At that time, in the wireless communication system of the present invention, it becomes easy to configure the system redundantly, and therefore, it is resistant to failures.

  Furthermore, in the wireless communication system of the present invention, it is possible to eliminate registration mistakes with respect to the IP-compatible PHS base station. It is also assumed that a different setting is required for each IP-compatible PHS base station.

  In such a case, there is a risk of an input error in the conventional method in which each IP-compatible PHS base station is directly connected and set via the telnet. In the wireless communication system according to the present invention, registration-possible IP-PBX is collectively managed by the IP address list distribution server, so that the possibility of registration mistakes can be eliminated.

  With the configuration and operation as described below, the present invention can simplify registerable IP-PBX address settings and prevent input errors when registering the addresses. An effect is obtained.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a wireless communication system according to an embodiment of the present invention. 1, a wireless communication system according to an embodiment of the present invention includes an IP (Internet Protocol) compatible PHS base station 1 that relays wireless communication of a PHS (Personal Handy-phone System) terminal (not shown), and an IP address list holding unit. 3, an address list distribution server 2 that distributes the IP address list held in 3 to the IP-compatible PHS base station 1, IP-PBX (primary) 4 (first candidate for registration destination of the IP-compatible PHS base station 1), IP-PBX (secondary) (also a second candidate of registration destination) 5.

  FIG. 2 is a block diagram showing a configuration example of the IP-compatible PHS base station 1 of FIG. In FIG. 2, the IP-compatible PHS base station 1 includes a CPU (central processing unit) 11 that performs overall control, a main memory 12 that stores a control program 12a executed by the CPU 11, and a CPU 11 that executes the control program 12a. A storage device 13 used as a work area, a wireless communication control unit 14 that controls wireless communication with a PHS terminal, an address list distribution server 2, an IP-PBX (primary) 4, and an IP-PBX (secondary) 5 It is comprised from the communication control part 15 which controls communication between.

  The storage device 13 includes an address list distribution server address holding area 131 that holds an address of the address list distribution server 2 and an address list holding area 132 that holds an IP address list distributed from the address list distribution server 2. The CPU 11, the main memory 12, the storage device 13, the wireless communication control unit 14, and the communication control unit 15 are connected to the internal bus 110, respectively.

  FIG. 3 is a sequence chart showing the operation of the wireless communication system according to one embodiment of the present invention (at the time of start-up / no failure). With reference to FIG. 1 and FIG. 3, the operation of the wireless communication system according to an embodiment of the present invention (at the time of start-up / no failure) will be described. In FIG. 3, the operation of the IP-compatible PHS base station 1 is realized by the CPU 11 executing the control program 12a.

  When the IP-compatible PHS base station 1 is activated (see a1 and a2 in FIG. 3), first, an address list distribution request signal is transmitted to the previously registered address list distribution server 2 (see a3 in FIG. 3). .

  In response to the address list distribution request, the address list distribution server 2 returns the IP address list of the IP-PBX that is the registration destination of the IP-compatible PHS base station 1 (see a4 in FIG. 3). The IP address list is held in the IP address list holding unit 3 and stores up to four IP-PBX addresses (primary node, secondary node, tertiary node, 4th node).

  The IP-compatible PHS base station 1 determines the address of the IP-PBX (primary node) 4 at the head of the IP address list distributed from the address list distribution server 2 as a registration destination (see a5 in FIG. 3). An initial setting request is transmitted to the IP-PBX (primary node) 4 (see a6 in FIG. 3).

  The IP-PBX (primary node) 4 confirms the operation information of the IP-compatible PHS base station 1 and transmits a signal path setting instruction to the IP-compatible PHS base station 1 (see a7 and a8 in FIG. 3). In response to this, the IP-compatible PHS base station 1 returns a signal path setting result (see a9 in FIG. 3). Through such exchange, registration in the IP-PBX (primary node) is completed (see a10 in FIG. 3), and the IP-compatible PHS base station 1 enters an operation state (see a11 in FIG. 3).

  4 and 5 are sequence charts showing the operation of the wireless communication system according to one embodiment of the present invention (when a failure occurs in the registration destination IP-PBX). The operation of the wireless communication system according to the embodiment of the present invention (when a failure occurs in the registration destination IP-PBX) will be described with reference to FIGS. 4 and 5, the operation of the IP-compatible PHS base station 1 is realized by the CPU 11 executing the control program 12a.

  The IP-compatible PHS base station 1 is in operation (see b1 in FIG. 4), and confirms communication by receiving a monitoring signal (health check) from the IP-PBX (primary node) 4 (see b2 and b3 in FIG. 4). ). Here, if any failure occurs in the IP-PBX (primary node) 4 or the network (see b4 in FIG. 4), this monitoring signal (health check) cannot be received (see b5 and b6 in FIG. 4).

  When the IP-compatible PHS base station 1 cannot receive a new signal within 4 minutes from the last reception of this monitoring signal (health check), it determines that some failure has occurred and autonomously restarts (FIG. 4). B7 and b8).

  At the time of restart, the IP-compatible PHS base station 1 refers to the IP address list received at the time of initial startup and transmits an initial setting request to the IP-PBX (primary node) 4 again. When there is no response from the IP-PBX (primary node) 4, the IP-compatible PHS base station 1 retries 5 times at intervals of 5 seconds (see b <b> 9 to b <b> 11 in FIG. 4).

  If there is no response within 5 seconds from the last retry, the IP-compatible PHS base station 1 determines that a failure has occurred in communication with the IP-PBX (primary node) 4 and the next candidate IP- The PBX (secondary node) 5 is selected as the registration destination (see b12 in FIG. 4).

  The IP-compatible PHS base station 1 receives an initial setting request (see b13 in FIG. 5), a signal path setting request (see b15 in FIG. 5), and a signal path setting result (see FIG. 5) with the IP-PBX (secondary node) 5. The registration is completed through the exchange (see b17), and the IP-PBX (secondary node) 5 starts operation (see b18 in FIG. 5).

  At that time, the IP-PBX (secondary node) 5 confirms the operation information of the IP-compatible PHS base station 1 and the signal path to the IP-compatible PHS base station 1 in the same manner as the processing of the IP-PBX (primary node) 4 described above. Setting instruction transmission is performed (see b14 and b15 in FIG. 5).

  Thus, in the present embodiment, it is possible to simplify the registration destination setting for the IP-compatible PHS base station 1. Even if it is desired to register a plurality of registration destinations in the IP-compatible PHS base station 1, the IP address to be registered in the IP-compatible PHS base station 1 is only the IP address of the IP address list distribution server 2, and a plurality of IP-PBX ( It is possible to save the trouble of directly inputting the IP address of the primary node, secondary node,.

  In this embodiment, the flexibility of the configuration of the IP-PBX can be improved. In the conventional method, when an IP-PBX that can be registered is added, it is necessary to add registration to all corresponding IP-compatible PHS base stations. On the other hand, in this embodiment, simply by restarting the IP-compatible PHS base station 1, the IP address list including the IP-PBX address that can be newly added from the IP address list distribution server 2 is received. can do. Since it is not necessary to individually add settings for each IP-compatible PHS base station, the expandability of the system can be improved. At this time, in the present embodiment, it becomes easy to configure the system redundantly, so that it is resistant to failures.

  Furthermore, in this embodiment, registration mistakes with respect to the IP-compatible PHS base station 1 can be eliminated. In the present embodiment, there may be a case where different settings are required for each IP-compatible PHS base station. In such a case, as in the prior art, each IP-compatible PHS base station has a telnet (telnet). ), There is a risk of input errors in the direct connection method. On the other hand, in the present embodiment, registration of IP-PBX that can be registered can be performed collectively by the IP address list distribution server 2, thereby eliminating the possibility of registration errors.

It is a block diagram which shows the structure of the radio | wireless communications system by one Example of this invention. It is a block diagram which shows the structural example of the IP corresponding PHS base station of FIG. It is a sequence chart which shows the operation | movement (at the time of starting, no failure) of the radio | wireless communications system by one Example of this invention. It is a sequence chart which shows the operation | movement of the radio | wireless communications system by one Example of this invention (at the time of failure in registration destination IP-PBX). It is a sequence chart which shows the operation | movement of the radio | wireless communications system by one Example of this invention (at the time of failure in registration destination IP-PBX).

Explanation of symbols

1 IP-compatible PHS base station 2 Address list distribution server 3 IP address list holding unit 4 IP-PBX (primary)
5 IP-PBX (secondary)
11 CPU
12 main memory 12a control program 13 storage device 14 wireless communication control unit 15 communication control unit 110 internal bus 131 address list distribution server address holding area 132 address list holding area

Claims (16)

A wireless communication system including an IP (Internet Protocol) compatible PHS (Personal Handy-phone System) base station and an IP-PBX (Private Branch exchange) to which the IP compatible PHS base station can be registered,
A distribution server that distributes an IP address list of the IP-PBX that can be registered;
The IP-compatible PHS base station transmits a request signal for requesting distribution of the IP address list to the distribution server at the time of activation, and the IP-address at the head of the IP address list distributed from the distribution server. A wireless communication system comprising: a registration unit using a PBX address as a registration destination.   The IP-compatible PHS base station includes holding means for holding the address of the distribution server in advance, and transmits the request signal based on the held address of the distribution server. Wireless communication system.   The IP-compatible PHS base station restarts autonomously when at least one of a communication failure with the IP-PBX and a failure of the IP-PBX itself occur. The wireless communication system according to claim 2.   The IP-compatible PHS base station includes storage means for storing the IP address list distributed from the distribution server, and the registration succeeds based on the IP address list stored in the storage means after the restart. The wireless communication system according to claim 3, wherein registration is sequentially performed on IP-PBXs in the IP address list.   5. The wireless communication system according to claim 1, wherein the IP address list stores the IP addresses of the IP-PBX in order of priority at the time of registration from the top. An IP compatible PHS (Personal Handy-phone System) base station that performs registration to IP (Internet Protocol) -PBX (Private Branch eXchange),
Means for transmitting a request signal for requesting distribution of the IP address list to a distribution server that distributes the IP address list of the IP-PBX that can be registered at startup; and the IP address list distributed from the distribution server And an IP-compatible PHS base station characterized in that the IP-PBX base station includes a means for performing the registration using an IP-PBX address at the top of the IP-PBX as a registration destination.   7. The IP-compatible PHS base station according to claim 6, further comprising holding means for holding in advance the address of the distribution server, and transmitting the request signal based on the held address of the distribution server.   The IP-compatible PHS according to claim 6 or 7, wherein at least one of a communication failure with the IP-PBX and a failure of the IP-PBX itself are restarted autonomously. base station.   A storage unit that stores the IP address list distributed from the distribution server, and the IPs in the IP address list until the registration succeeds based on the IP address list stored in the storage unit after the restart. The IP-compatible PHS base station according to claim 8, wherein registration is sequentially performed on the PBX.   10. The IP-compatible PHS base station according to claim 6, wherein the IP address list stores IP addresses of the IP-PBX in order of priority at the time of registration from the top. A registration destination holding method used in a wireless communication system including an IP (Internet Protocol) -compatible PHS (Personal Handy-phone System) base station and an IP-PBX (Private Branch exchange) that can be registered by the IP-compatible PHS base station Because
Providing a distribution server for distributing an IP address list of the IP-PBX capable of registration;
The IP-compatible PHS base station transmits a request signal for requesting distribution of the IP address list to the distribution server at the time of activation, and the IP− at the head of the IP address list distributed from the distribution server A registration destination holding method, comprising: performing registration processing using a PBX address as a registration destination.   12. The IP-compatible PHS base station holds an address of the distribution server in a holding unit in advance, and transmits the request signal based on the held address of the distribution server. Registration destination retention method.   The IP-compatible PHS base station restarts autonomously when at least one of a communication failure with the IP-PBX and a failure of the IP-PBX itself occur. The registration destination holding method according to claim 12.   The IP-compatible PHS base station stores the IP address list distributed from the distribution server in a storage unit, and after the restart until the registration is successful based on the IP address list stored in the storage unit 14. The registration destination holding method according to claim 13, wherein registration is sequentially performed on IP-PBXs in the IP address list.   The registration destination holding method according to any one of claims 11 to 14, wherein the IP address list stores the IP addresses of the IP-PBX in order of priority at the time of registration from the top. A registration destination holding method used in a wireless communication system including an IP (Internet Protocol) -compatible PHS (Personal Handy-phone System) base station and an IP-PBX (Private Branch exchange) that can be registered by the IP-compatible PHS base station The program of
Providing a distribution server for distributing an IP address list of the IP-PBX capable of registration;
A process of transmitting a request signal for requesting distribution of the IP address list to the distribution server at startup to the computer of the IP-compatible PHS base station, and at the head of the IP address list distributed from the distribution server A program for executing registration processing using an IP-PBX address as a registration destination.

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