JPS63191427A - Mobile radio communication system - Google Patents

Abstract

PURPOSE:To improve connection reliability by dividing each of station identification codes of a radio base station and a mobile radio equipment into plural parts, and performing matching between the radio base station and mobile radio equipment as many times as the number of divided station identification codes. CONSTITUTION:The station identification codes ID are divided into plural parts and transmission/reception and collation of ID between the radio base station and mobile radio equipment is performed as many times as the number of divisions. Thus, an ID signal is divided by (n) to prevent an opposite connection destination from being mistaken while suppressing the use time of a common control channel to the necessary minimum, and the ID is divided and collated, so an illegal mobile radio equipment is excluded and a high-reliability system is obtained.

Description

Detailed Description of the Invention (1) Technical field to which the invention pertains The present invention provides a station identification code (hereinafter referred to as base station ID and mobile device ID) when setting up a radio link between a wireless base station and a mobile wireless device. This relates to a mobile radio communication system that verifies

(2) Prior art and its problems The configuration of a conventional mobile radio communication system of this type is shown in FIG. Here, 1 is a radio base station, and 2 is a mobile radio device. The components of each device are as follows. In the radio base station, 1a is an antenna, 1h is a duplexer, 1c is a transmitter, 1d is a base station ID generator, 1e is a receiver, 1 is a mobile device ID collation device, and 1g is a control unit. In the mobile radio device, 2a is an antenna, 2b is a duplexer, 2c is a transmitter, 2d is a mobile device 11) generator, 2e is a receiver, and 2f
is a base station ID verifier, and 2g is a control unit. In advance, the wireless base station 1 and the mobile wireless device 2 have the T of the other party with which they can communicate with each other.
D is stored in the mobile device ID verifier 1f and the base station TD verifier 2f.

An example of the basic operation of receiving a call in this case is shown in FIG. First, the wireless base station 1 transmits an incoming signal and a base station ID. Like a traditional cordless phone, a mobile radio connects to a wireless base station.
If the system is compliant with 1-to-1 communication and cannot communicate with other radio base stations, a mobile radio device can be identified only by base station ■D. If the system is such as a car phone, in which a mobile radio device can communicate with various radio base stations by registering one location, it is necessary to attach a mobile device ID in addition to the base station ■D. When receiving an incoming signal, the mobile radio device 2 corresponding to this mobile device ID identifies that the incoming signal is an incoming signal, and also identifies the base station ID that the base station ID signal has stored in advance.
The mobile device ID signal is compared and determined to be a match, and if a match is found, the mobile device ID signal is returned together with the incoming call response signal. Upon receiving this signal, the radio base station 1 verifies that the signal sent from the mobile radio device 2 is an incoming call response signal and the ID of the mobile device that initiated the incoming call, and completes the incoming call operation. In this method, in order to reliably identify the communication partner, it is necessary to increase the number of digits in both the base station ID and the mobile device ID, and after the wireless base station 1 transmits the incoming signal, There is a drawback that it takes time to verify the mobile device ID. In particular, when the above-mentioned signal transmission and reception is performed on a control channel shared by multiple pairs of radio base stations 1 and mobile radio devices 2, the control signal becomes long, resulting in a noticeable drawback in terms of efficiency of the control channel. Ta.

(3) Purpose of the Invention The purpose of the present invention is to solve the above-mentioned drawbacks by
By dividing the mobile device ID into multiple parts, for example, a part sent and received on a control channel and a part sent and received on a speech channel, the number of digits of the ID can be reduced while keeping the control time required for sending and receiving on the control channel short. The purpose of the present invention is to provide a mobile radio communication system that can make the connection longer and thereby ensure the reliability of the connection.

(4) Structure of the Invention ■Characteristics of the Invention and Differences from the Prior Art The present invention divides the station identification code ([)) into a plurality of pieces, and according to the configuration of the wireless channel, connects the divided number of wireless base stations. It is possible to exchange and verify IDs between mobile radio devices.

■Example The basic configuration of the present invention is the same as that shown in FIG.
The configuration is different. Figure 3 (aL fbl are respectively,
FIG. 2 is a configuration diagram of an ID generator and an ID verifier for explaining the present invention, which can be realized with a common configuration for a radio base station 1 and a mobile radio device 2. FIG. The ID generator includes an ID generation circuit 10 that can divide an ID into n parts, and an ID transmitter 11-1 that transmits each ID.
.about.11-n and a multiplexing circuit 12 for enabling each ID transmitter to transmit on one line. On the other hand, I.D.
The verifier is an ID verification circuit 2 for verifying n IDs.
n ID receivers 21 for receiving 0, n IDs;
-1 to 21-n and the ID input from one line is n
It is composed of a multiplexing/demultiplexing circuit 22 for separating into ID receivers.

FIG. 4 shows an example of the operation of receiving a call between a wireless base station and a mobile wireless device using this circuit.

The wireless base station 1 first transmits an incoming signal and a wireless base station 1st ID signal. As described in the conventional example, if there is a one-to-one correspondence between the mobile radio device 2 and the radio base station 1, the mobile radio device 2 can also be identified by simply indicating the ID of the base station. If we were to create a system that allows mobile radios, such as car phones, to communicate with other radio base stations5 through location registration, in order to identify the other party's mobile radio, not only the base station 1st ID, but also the mobile You will also need to send your ID. There are various ways of adding this, for example, adding only the 1st ID of the mobile device,
It is also possible to add the entire mobile device ID. In order to further exhibit the effects of the present invention, it is desirable to add the mobile device 1st ID as shown in parentheses in FIG. The mobile radio first verifies the mobile device 1stlD to confirm that it is the one called, and then verifies the base station 1stlD signal with pre-stored data. This data can be rewritten every time the location is registered. This verification is [OK]
When it does, it returns an incoming call response signal. At this time, mobile device 1
Add stlD. If the verification is rNOJ, no incoming response signal is issued, so the radio base station sets a timer for a certain period of time after sending out the incoming signal, waits for the incoming response, and then terminates the connection due to timeout. The base station compares the mobile device 1stlD added to the incoming call response with pre-stored data, and if they match, sends a communication channel designation signal. The mobile radio that receives this releases the control channel and sets up the designated communication channel.

After that, the mobile device ID and base station ID are added to various control signals (wireless communication signals, response signals, etc.) for connecting communication channels, and ID verification is performed each time to ensure that they all match. Sometimes, connect the line and start a call. According to this, since the control channel is released quickly, the control channel can be used with high efficiency. Note that similar control is possible in the case of making a call and in the case of ending a call.

(5) As described in detail, the present invention divides the ID signal into n parts, thereby minimizing the usage time of a common channel, that is, the control channel, while preventing the connection to the wrong party. A mobile radio communication system with high connection reliability can be constructed. Furthermore, since the ID is divided and compared, unauthorized mobile radio devices can be excluded, and a highly reliable system can be realized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the general configuration of a mobile radio communication system to which the present invention is applied, FIG. 2 is a flowchart illustrating a conventional operation example of the configuration example in FIG.
) (b) A block diagram showing an example of a generator and an ID verifier used in the present invention. FIG. 4 is a flowchart 1 for explaining the present invention in detail. 1... Radio base station, 1a... Antenna, 1b...
・Transmission/reception duplexer, 1c...Transmitter, 1d...Base station ID generator, 1e...Receiver, 1f...Mobile device I
D verifier, 1g...control unit, 2...mobile radio device,
2a... antenna, 2b... duplexer, 2c
...Transmitter, 2d...Mobile device ID generator, 2e.
...Receiver, 2f...Base station ID verifier, 2g...
-Control unit, ]0-TD generator, 11-1. -1.1
-n-11) Transmitter 12... multiplexing circuit, 20
...ID verifier, 21-1. -21- n-...I
D receiver, 22... demultiplexing circuit.

Claims (1)

[Scope of Claims] Consists of a radio base station and a mobile radio device connected to the radio base station via a radio line, and when connecting the radio line, each In a mobile radio communication system that exchanges and verifies station identification codes, the station identification codes of each radio base station and mobile radio device are divided into multiple pieces, and the station identification codes are exchanged between the radio base station and the mobile radio device. A mobile radio communication system characterized in that it is configured to improve connection reliability by performing verification a number of times equal to the number of divisions.