JPH03244230A - Radio equipment for personal radio - Google Patents

Abstract

PURPOSE:To call an opposite party even when the group number of a call station is not known by storing the group number of a station to be called as well by the call station as its own waiting group number only for fixed time after finishing communication, and using its own group number as a call originating group number by the station to be called. CONSTITUTION:For example, a radio station A (call station) calls a radio station E (station to be called) by a group number '55555' and makes a call. Assuming that after the lapse of continuous call enable time for one minute, the call is finished, when the station E to be called desires the restart of the call with the call station A just after finishing this call, only for 10 seconds, for example, after the end of the speech, the radio equipment of the call station A stores the group number '55555' of the station E to be called into a memory as its own waiting group number. Therefore, when the station E to be called uses its own group number '55555' as the call originating group number only for these 10 seconds, the station E to be called can restart the call even when the original group number ('1111') of the call station A is not known.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radio device in a personal radio.

[Conventional technology]

In recent years, the Radio Law has been revised to allow personal radios with an output of up to 5 watts, and communication using a frequency band of 900 megahertz has come to be carried out by vehicle-mounted radios and the like.

[Problem to be solved by the invention]

Each radio in a personal radio has a group number consisting of five digits, and when calling a desired party, the group number of the party (called station) is sent. The radio at the called station detects this group number and is activated, and a call is made between the calling station and the called station.

However, in personal radios, the time during which continuous talk can be made is limited to a short time (currently one minute), and communication automatically ends after this time has elapsed. By the way, in personal radio, when the calling station side calls the other party, the group number of the calling station is not sent. Therefore, when the called station needs to call the calling station and restart the conversation immediately after the continuous talk time has elapsed and communication ends, the called station does not know the group number of the calling station. It is often not possible to identify the calling station. In such a case, a problem arises in that the called station cannot resume the call.

The present invention solves these problems and provides a wireless device that allows the called station to call the calling station and resume the conversation immediately after the call ends, even if the called station does not know the group number of the calling station. This was done in an attempt to provide the following.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a personal radio whose continuous talk time is limited to a short period of time. The present invention provides a wireless device characterized in that the called station stores its own group number as the calling group number and also stores its own group number as the calling group number.

(Function) In the radio device according to the present invention, after the end of a call, only for a fixed period of time, the calling station side of the call memorizes the group number of the called station as its own standby group number, and also stores the group number of the called station as its own standby group number. Since the group number is set to be the calling group number, even if the called station does not know the group number of the calling station, it can transmit the group number of itself (the called station) for a certain period of time after the end of the call, thereby identifying the other party's (calling station) group number. The call can be resumed by calling the calling station.The calling station of the original call naturally knows the group number of the called station, so after the call ends, the calling station can call the called station. Needless to say, there is no problem in calling it again.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Each personal radio device whose continuous talk time is limited to a short time (currently one minute in minute mode) must store up to four types of group numbers, including its own group number, as private group numbers. I can do it. However,
In the present invention, only for a certain period of time after the end of a call, the calling station's wireless device sets the group number of the called station to its own (
The group number of the called station is stored in memory as the standby group number of the calling station, and the radio of the called station stores its own group number as the calling group number. A certain period of time after a call ends means that if the call ends due to the elapse of the continuous talk time, then after the said time has elapsed - for example, 10 seconds, and if the call ends before the continuous call time has elapsed, then from the time the call ends. As an example 1
0 seconds.

Next, please refer to Fig. 1 regarding the fact that after a call ends, the radio on the calling station side of the call also stores the group number of the called station in its memory as its own (calling station's) 11 receiving group number. A specific example is given below.

It is assumed that there are wireless stations A through ", each having the following group numbers.

In the case of wireless station 8\ number A 11111 B 22222 C33333 D 44444 E, 55555 F 6666, wireless station A (calling station) calls wireless station E (called station) using its group number r55555J and makes a call. Suppose that the call ends after one minute of continuous talk time has passed.If the called station E wants to resume the call with the calling station A immediately after the call ends, the called station E will resume the call with the calling station A. could not be identified and its group number (r55555J)
If the called station E cannot know this, the called station E cannot resume the conversation with the calling station A. Therefore, in this invention, in such a case, for example, 1
Only for 0 seconds, the radio of calling station A also stores the group number r55555J of called station E in its memory as the standby group number of itself (calling station A). Therefore, only for this 10 seconds, the called station If E sets its own group number r55555J as the calling group number, the called station E will know the group number of itself (called station E) even if it does not know the original group number (N111J) of the calling station A. By sending the number "55555" using a button switch, for example, the calling station A can be called and the conversation can be resumed.

(Effects of the Invention) As explained above, according to the present invention, the calling station side of the call stores the group number of the called station as its own standby group number for a certain period of time after the end of the call, and Since the station uses its own group number as the calling group number, even if the called station does not know the calling station's group number, it will only send out its own (called station) group number for a certain period of time after the call ends. This makes it possible to call the other party (the calling station) and resume the conversation.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a communication state according to the present invention.

Claims (1)

[Claims] 1. In personal radios whose continuous talk time is limited to a short time, the calling station stores the group number of the called station as its own standby group number for a certain period of time after the call ends. A wireless device characterized in that the called station of the call uses its own group number as the calling group number.