JPH10285648A - Personal handy phone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the convenience of the PHS by displaying a message denoting that dialing is not available in an area of a base station in the case of receiving a link channel assignment reject signal from the base station to urge the PHS to make redialing from other area. SOLUTION: When a PHS terminal (PS) makes dialing, the PS transmits a link channel request. Upon the receipt of the link channel request, a base station CS 1 covering its area discriminates whether or not channel assignment is available and the base station CS 1 sends a link channel assignment reject signal to the PS when the channel assignment is not available. Upon the receipt of the link channel assignment reject signal, a control section of the PS reads reject reason information included in the signal and selects a proper message among a plurality of messages having been prepared in advance in a storage section based on the reject reason information and allows a display section to display the selected message.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simplified portable telephone (PHS), and particularly, when a call is made, when a base station is in a connection rejected state, it indicates that it cannot be used from the current location. In addition, the present invention relates to a simplified mobile phone that can improve convenience.

[0002]

2. Description of the Related Art First, a conventional simple portable telephone (PH)
S) will be described. When a call is made from a PHS terminal (PS), when the user goes off-hook, the terminal transmits a link channel establishment request signal, and the base station (CS) covering the area where the terminal is located receives the link channel establishment request signal. When it is determined that channel assignment is possible, a link channel assignment signal is transmitted to the terminal, and when the terminal receives the signal, the terminal transits to a callable state.

[0003] However, even if the terminal transmits a link channel establishment request, if the base station is in a connection rejected state, such as when there is no available radio channel in the covered base station or when all slots are in use, The base station transmits a link channel assignment rejection signal to the terminal.

Here, the operation of the conventional PHS when the base station is in a connection rejected state at the time of calling will be described with reference to FIG. FIG. 2 is an explanatory diagram showing the operation of the conventional PHS when the base station is in a connection rejected state at the time of calling. As shown in FIG. 2, when the terminal (PS) performs a calling operation, the terminal transmits a link channel establishment request signal to the base station (CS1). Since CS1 is in the connection rejected state, CS1 sends a link channel assignment rejection signal to PS.

Here, a conventional PHS terminal outputs a busy tone when receiving a link channel assignment rejection signal. For this reason, the user cannot distinguish whether the base station is in the connection rejected state or the called party is busy, and repeats the calling operation many times in the connection rejected area. If the base station is in the connection rejected state and the other party is not busy, a call can be made by moving to an area covered by another base station and calling again.

[0006]

However, in the above-mentioned conventional portable cellular phone (PHS), a busy tone is output when the base station is in a connection rejected state at the time of calling, so that the base station is provided to the caller. It is not possible to distinguish whether the connection is refused or the other party is busy, and tries to make a call again in the connection refused area many times, so it is difficult to get a call,
It is inconvenient, and in the case of urgent business, there is a problem that an opportunity to move to another area is missed and communication is delayed.

[0007] The present invention has been made in view of the above circumstances, and when a base station is in a connection rejected state, it indicates that it cannot be used in this area and calls the caller again from another area. It is an object of the present invention to provide a simplified mobile phone that can prompt and improve convenience.

[0008]

According to a first aspect of the present invention, there is provided a portable telephone which receives a link channel assignment rejection signal from a base station at the time of a call. Displaying a message indicating that calling is not possible in the area of the base station. The user can easily recognize that the base station is in the connection rejected state, and It is possible to move to another area and make a call without repeating useless call operation in this area, thereby improving convenience.

According to a second aspect of the present invention, in order to solve the above-mentioned problems of the prior art, when a link channel rejection signal is received from a base station at the time of a call, the base station transmits the signal to the base station. It is characterized by outputting a voice message indicating that calls cannot be made in the area. The user can easily recognize that the base station is in the connection rejected state and use it in the area in the connection rejected state. It is possible to move to another area and make a call without repeating the calling operation, thereby improving convenience.

[0010]

Embodiments of the present invention will be described with reference to the drawings. The portable telephone (PHS) according to the embodiment of the present invention displays a PHS display based on a signal received from the base station when the base station is in a connection rejected state at the time of calling. A message notifying that a call cannot be made from an area is displayed to urge the caller to call back from another area, thereby preventing unnecessary call operation from being repeated and improving convenience.

The configuration of the PHS (this device) according to the embodiment of the present invention is almost the same as that of the conventional PHS, and therefore the description is omitted here. In this case, data of a message to be displayed is stored, and processing in the control unit is partially different.

The operation at the time of calling, which is a feature of the present apparatus, will be described with reference to FIG. FIG. 1 is an explanatory diagram showing an operation at the time of making a call in the simplified type mobile phone according to the embodiment of the present invention. As shown in FIG. 1, the PHS terminal (P
When a calling operation is performed in S), a link channel request is transmitted from the PS, and when the base station CS1 covering the area receives the link channel request, it determines whether or not channel allocation is possible. As in the conventional case, when the assignment is impossible, the base station CS1
A link channel assignment reject signal is transmitted to the PS.

[0013] As a feature of the present apparatus, the control unit includes:
When a link channel assignment rejection signal is received, a message to the effect that it cannot be used in this area is output to the display unit.
Specifically, the control unit reads the rejection reason information included in the link channel assignment rejection signal, and selects an appropriate message from a plurality of messages prepared in advance in the storage unit based on the rejection reason information. And display it on the display unit. The message may not be displayed depending on the contents of the rejection reason information.

Here, the rejection reason information read from the link channel assignment rejection signal indicates that all CS slots are in use.
If there is no CS free channel, no wire side free outgoing line, congestion regulation, or the corresponding CS unusable, indicate the reason for rejection and say, "This area is currently unavailable because ... Please call again in another area. "

[0015] Also, other rejection reason information, for example, Lch type mismatch (Ps that CS has transmitted a link channel establishment request)
When rejection reason information (e.g., indicating that there is no Lch type that can be used in common with S) is received, a busy tone is output as in the related art.

Thus, the user of the present apparatus sees this display, and the reason why the telephone cannot be reached is not that the other party is busy, but the base station in the area where the user is located is
Recognizing that this is due to a connection refused state, the user can move to another area and call back. In the example of FIG.
The user moves to the area of the base station CS2 and performs a calling operation. Since the distance between PHS base stations is at most several hundred meters, movement between areas is not so difficult.

In the example shown in FIG. 1, since the base station CS2 is in a connectable state, upon receiving a link channel assignment request from the PS, the base station CS2 transmits a link channel assignment signal, and is transmitted between the base stations CS2 and PS. When a control sequence necessary for the call is performed, and the incoming call request is acknowledged on the receiving side and goes off-hook, the call is realized.

As described above, the present apparatus notifies the user that the base station is in the connection refusal state, so that the user can clearly distinguish from the busy state of the called party and call back from another area. So that they can be contacted more quickly.

In the above-described example, the message that the base station is in the connection rejection state is displayed on the display unit, but data of the voice message is stored in the storage unit, and the voice message is stored as a voice message. You may make it output from a speaker.

According to the simplified portable telephone (PHS) according to the embodiment of the present invention, when the base station is in a connection rejected state at the time of making a call, a message indicating that "the terminal cannot be used in this area" is displayed. This allows the user to easily recognize that the connection is refused from the busy state without recognizing it. Can be re-started from the area, and the convenience can be improved.

[0021]

According to the first aspect of the present invention, when a link channel assignment rejection signal is received from a base station at the time of calling,
Since the mobile phone is a simple type mobile phone that displays a message indicating that calls cannot be made in the area where the user is currently located, the user can easily recognize that the base station is in a connection rejected state and reject the connection. It is possible to move to another area and make a call without repeating useless call operation in the area of the state, which has the effect of improving convenience.

According to the second aspect of the present invention, when a link channel assignment rejection signal is received from a base station at the time of calling, a simple message that a call cannot be made in the currently located area is output as a voice message. Since the mobile phone is a mobile phone, the user easily recognizes that the base station is in a connection rejected state, and moves to another area without repeating useless call operations in the area in the connection rejected state. There is an effect that calling can be performed and convenience can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an operation at the time of making a call in a portable telephone (PHS) according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an operation of a conventional PHS when a base station is in a connection rejected state at the time of calling.

[Explanation of symbols]

 PS: PHS terminal, CS: Base station

Claims (2)

[Claims] When a call is received and a link channel assignment rejection signal is received from a base station, a message indicating that calling is not possible in the area of the base station is displayed. Phone. 2. A simplified method according to claim 1, wherein, when a link channel assignment rejection signal is received from a base station at the time of calling, a message indicating that calling is not possible in the area of said base station is output by voice. Mobile phone.