JPS59212041A - Continuity test system of mobile radio communication - Google Patents

Abstract

PURPOSE:To shorten a communication interruption time with regard to channel switching accompanying zone transition by testing the continuity of a new channel while holding communication over the last channel and switching the communication to the new channel on the completion of the continuity test. CONSTITUTION:A mobile equipment 9 has two transmitter and receivers 2 and 3 and a changeover switch 12. When the switching to a base station 7 is necessary while the mobile equipment 9 communicates with an equipment connected to a connection control network 8 through a base station 6 over a radio channel 4, the connection control network 8 acquires a radio channel 5 newly between the transmitter and receiver 3 and base station 7 while holding the communication over the channel 4. The continuity of this new radio channel 5 is tested, and when the continuity is normal, the switch 12 is changed over to the side of the transmitter and receiver 3. The connection control network 8 switches the communication path between the network and base station to the communication path between the network and the base station 7.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a continuity test of a new wireless channel performed when a mobile device successively switches anonymous channels as it moves in mobile communication g. In particular, it relates to a continuity test method suitable for a car telephone system with a small wireless zone configuration.

[Background of the invention]

In conventional mobile communication, as seen in the car phone system, Akebono switches the wireless channel 1 during one call, and conducts a continuity test of the newly captured wireless channel to the old wireless channel that was communicating until then. After switching to a new wireless channel, the trap is gone. However, for continuity testing, 70Qm8eC
This had the disadvantage of interrupting one communication because it required a lot of time.

[Purpose of the invention]

The purpose of the present invention is to shorten the interruption time and reduce the loss of communication data, compared to the conventional method where continuity tests account for approximately 80% of the communication interruptions due to channel switching during communication. The object of the present invention is to provide a continuity test method for high-quality mobile radio communications.

[Key points of the invention]

In order to achieve the above purpose, in the present invention, a continuity test was conventionally performed after switching the unbound channel, but before switching, communication was performed once on the old channel, and when the continuity test was successfully completed, the new continuity test was performed. By switching to a wireless channel, the interruption time is shortened.

[Embodiments of the invention]

One embodiment 9i1 of the present invention will be explained below with reference to the drawings.

Figure a11 shows the current channel while communicating through the old channel;ll! ! Two transmitting/receiving DS for the exam journey
R1 (2), 5R2 (5) and continuity tester C
This is an example in which 0NA (1ri) is loaded onto a moving 8!MSS (9).While moving, the MSS (9) transmits voice or data communication 1n to 5R1 (2 ) using a thermally fused channel cl
The MSS (9) is now communicating with the base station MBS1 (6) and other data dh accommodated in the connection control network (8) by communicating with the base station MBS1 (6). The radio waves for the song with 6) weakened, and the connection control network (8
) If it becomes necessary to communicate with another base station MBS2 (7) accommodated in SR2 (3), the connection control network (8) will communicate with SR2 (3) and MBS2 (
# between 7) and 11i! Channel CE2 (5) is newly acquired. Next, this newly captured C'E251
To test the continuity of MSS (9) and MBS2 (
7) Perform a continuity test between the This will be explained with reference to FIG. One of the unrelated channels between the transceiver and the MES
A book is a pair of upstream and downstream channels, and C0IVA
(1 transmits a signal with a specific frequency #f1.fs to the upstream channel. SJ?2 (3), CB2 (5).

Via MBS2 (7), this is connected to the conductor 3I installed in MBS2! When the i-tester COMB (11) receives the signal, COMB (11) sends the h signal to the same downstream channel as the primary and SR2 (3). C0NA(10
), if you can receive this, the continuity is normal, and you can't receive it.

If a certain h is injured at an abnormal level, there is poor continuity. Continuity test result connection # network (8) and ffE (
The notification method for 1) is possible with existing technology and is not part of the *X part of the present invention, so its explanation will be omitted. If the continuity test is normal, DTE (1) switches switch y (12) in Figure 1 from the 5R1 (2) side to the SR2 (5) side, and connects -M4 (81, MBS1 (6) )
The communication path with MBS2 (7) is switched to the communication path with MBS2 (7). In this way, the old channel is switched to the new channel after completing the continuity test while maintaining the continuity status of the channel. Can be done.

〔Effect of the invention〕

According to the present invention, the wireless channel is switched after the continuity test is completed as the mobile device moves.

It is possible to shorten the switching interruption time, and in the event of a continuity failure, it is possible to catch another fault and conduct the continuity test again before switching, eliminating wasted time associated with switching.
Communication interruption can be shortened.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the essential points of channel switching during communication according to the present invention, and FIG. 1: Data equipment (DTE) 2.3: Transmitter/receiver (SR1, 2) 4.5: Radio channel (CEL, 2) 6.7: Base station (MBS 1, 2) 8: Connection system N4 9: Mobile Machine (MSS) 10.11: Continuity tester (C0NA, B) Representative patent attorney High! k Akira Husband 1 Ah 2 Figure 237

Claims (1)

[Scope of Claims] A data device that controls voice and data, a transceiver that transmits and receives voice or data to and from other data devices wirelessly, and two or more channels for wireless communication. A mobile device that communicates with other data devices while moving;
A base station is connected to the mobile device via a wireless channel and communicates with the base station, and is connected to the base station by a communication path. It is a mobile communication network consisting of a connection control network that controls connection of communication channels, and a mobile wireless communication network is a mobile communication network that allows mobile devices to communicate with other data devices accommodated in upper eMs via base stations while moving. , as you move. In mobile communication, where wireless channels are switched one after another, a continuity test is performed to test whether communication can be performed normally on a new wireless channel while continuing communication on the wireless channel before switching, and the results confirm that continuity is normal. A continuity test method for mobile communication, which is characterized by switching from the old wireless channel that was communicating until then to the new wireless channel.