JPH08275231A - Communication channel matching method - Google Patents

Abstract

PURPOSE: To attain the communication without increasing the hardware amount even when a communication channel designated by an exchange network is dissident with a communication channel designated by a radio base station having no channel negotiation function with respect to the exchange network. CONSTITUTION: In the communication channel matching method of a radio communication system consisting of an exchange network 1, a service provider device 2 connecting to the exchange network 1, plural radio base stations 3 connecting to the service provider device 2 and plural radio terminal equipments 4 making communication via each radio base station 3, when a call comes from the exchange network 1 toward the terminal equipment 4 and a communication channel designated by the exchange network 1 is dissident with the communication channel designated by the radio base station 3, the service provider device 2 calls repetitively the radio base station 3 till the coincidence of the communication channel is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication channel matching method between a wireless base station and a service providing device in a wireless communication system.

[0002]

2. Description of the Related Art When an incoming call arrives at a terminal device from a switching network having an I interface line, communication is performed on a communication channel designated by the switching network. On the other hand, when the wireless base station processes the communication between the communication terminal devices, the communication channels managed by itself are sequentially and cyclically assigned. In this case, if the two communication channels do not match, the switching network side has a function of matching them.

[0003]

However, in order to provide a new type of service as a communication system, a service providing device is arranged between a switching network having an I interface line and a radio base station. In such a case, if the communication channel specified by the switching network and the communication channel specified by the wireless base station do not match, there is a problem that communication cannot be performed as it is. In terms of hardware, a circuit such as a switch is required to match the communication channels of both the communication channels, which increases the amount of hardware.

It is an object of the present invention to solve the above problems and even when the communication channel specified by a radio base station having no channel negotiation function with the switching network does not match the communication channel specified by the switching network. , To enable communication without increasing the amount of hardware.

[0005]

In order to achieve the above object, the present invention provides a communication channel matching method for a wireless communication system including a switching network, a service providing device, a plurality of wireless base stations and a plurality of wireless terminal devices. If there is an incoming call from the switching network to the terminal device and the communication channel specified by the switching network and the communication channel specified by the radio base station do not match, the service providing apparatus waits until the communication channel matches. The wireless base station is repeatedly called.

[0006]

When the control signal arrives at the wireless terminal device from the switching network via the service providing device having no switch and the wireless base station which does not allow change, the communication channel management of the switching network and the wireless base station is performed. Because the functions are independent,
This may result in communication channel mismatch. In such a case, according to the present invention, the service providing apparatus retransmits the control signal to the wireless base station until the communication channel designated by the switching network and the communication channel from the wireless base station match, thereby enabling communication. To do.

[0007]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram for explaining the configuration of a wireless communication system. A service providing device 2 is interposed between a switching network 1 and a wireless base station 3, and a wireless terminal device 4 is connected to the wireless base station 3. Have a configuration. Of course, a large number of wireless base stations 3 and wireless terminal devices 4 are actually included, but only one is shown in this figure.

FIG. 2 is a diagram showing a signal sequence of the channel matching method in the embodiment of the present invention. In the case of an incoming call from a switching network having an I interface, the switching network 1 first sends out a SETUP signal designating a communication channel. The service providing device 2 stores the communication channel specified in the SETUP signal, and returns the CALLPROC signal to the switching network 1.

Next, the service providing device 2 sends a SETUP signal with the communication channel designation changed to "arbitrary communication channel" to the radio base station 3. The service providing device 2
The designated communication channel in the CALL PROC signal returned from the wireless base station 3 is compared with the designated communication channel from the switching network 1. If they do not match, the RELEASE signal is sent to release the call and the wireless communication is performed again. The same SETUP signal is retransmitted as a new call to the base station 3. After that, send the SETUP signal by the same method until the communication channels match,
When the communication channels match, the normal call processing operation is performed thereafter.

[0010]

As described above, according to the present invention,
Even in a switching network and a wireless base station that do not allow the communication channel to be changed, the communication channel can be matched without adding hardware to the service providing apparatus.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration of a wireless communication system.

FIG. 2 is a diagram showing a signal sequence of a channel matching method in the embodiment of the present invention.

[Explanation of symbols]

 1 switching network 2 service providing device 3 wireless base station 4 wireless terminal device

Continued Front Page (72) Inventor Yasuyoshi Kojima 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (1)

[Claims] 1. A switching network, a service providing apparatus connected to the switching network, a plurality of wireless base stations connected to the service providing apparatus, and a plurality of wireless terminals that communicate via the wireless base stations. In the communication channel matching method of a wireless communication system including a device, when there is an incoming call from the switching network toward the terminal device and the communication channel specified by the switching network does not match the communication channel specified by the wireless base station. Is a communication channel matching method, wherein a service providing device repeatedly calls a wireless base station until a communication channel matching is obtained.