JPH11331349A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent troublesomeness of redialing and of forgetting redialing when a free channel is not available in a base station to be in a waiting state at the time of making a call with a PHS portable telephone set. SOLUTION: A user preliminarily sets a processing method in an optionally selectable menu when link channel allocation is rejected by a base station, the telephone number is stored in a memory 6 when the allocation rejection signal is sent, a timer 7 counts time and a controlling part 5 automatically redials with a time interval and number of count which are preliminarily set.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone which automatically redials in a standby state.

[0002]

2. Description of the Related Art Conventionally, a mobile terminal for wireless communication generally used, for example, a telephone of a personal handy phone system (hereinafter referred to as PHS) is used to measure and display the electric field intensity of a radio wave on an operation display unit. Some have a function that can be performed. Usually, the user of the PHS telephone measures the electric field intensity of the radio wave by using the above function before making a call, confirms whether the mobile phone is in a usable state, and makes a telephone call.

FIG. 3 is a flowchart showing a part of a control sequence (second generation cordless telephone system standard: RCR STD-28) when a call is made from a PHS portable telephone to a base station. In the figure, normally, the telephone goes off-hook by a dial operation from the standby state (m-1) (f-1), transmits a link channel establishment request signal to the base station (f-2), and receives a signal from the base station. It waits for link channel allocation (f-4). The base station receives the link channel establishment request signal of the telephone, and transmits a link channel assignment signal when the channel is free (s-1 is present) (s-3). Thereafter, the telephone and the base station mutually transmit and receive a synchronization burst signal to establish a link channel,
Talking is possible (sf-1 to sf-3).

The link channel assignment waiting state (f-
In 4), when there is no empty slot in the base station and a channel assignment rejection signal is transmitted from the base station to the telephone (s-2), the telephone enters standby (m-1). Also, when the link channel assignment waiting state (f-4) exceeds a certain waiting time and times out (f-5),
A request for a link channel establishment request is made again (f-3). If this re-request is within the limited number of times (m-3 possible), a request signal is sent.
(No), the telephone returns to standby (m-1).

[0005]

SUMMARY OF THE INVENTION However, PHS
Even if the user of the telephone makes a call assuming that the electric field strength of the radio wave is good, if there is no free channel of the line with the base station, communication is not possible until the line is free. In this case, it is necessary for the user to call again after a while, and if he is busy, there is a problem that he forgets to call again. The present invention has been made in order to solve the above problems, and has as its object to provide a PHS mobile phone that can automatically call a base station when it is necessary to make a call again. I do.

[0006]

In order to solve the above-mentioned problems, in a telephone according to the present invention, a transmitting / receiving means for a radio signal, a modulating / demodulating means for transmitting / receiving data, a storing means,
In a mobile phone equipped with control means, when there is no idle line between the base stations at the time of dialing, and when in a standby state,
A telephone number is stored in the storage means and redial is automatically performed at a preset time interval and number of times.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. FIG. 1 is a diagram showing a P according to the invention
FIG. 1 is a schematic configuration diagram illustrating a configuration of an HS mobile phone. As shown in FIG. 1, the mobile phone 1 includes an RF unit 3 for transmitting and receiving a high-frequency signal via an antenna 2, a modulation / demodulation unit 4 for demodulating a high-frequency reception signal from the RF unit 3 or modulating transmission data, A control unit 5 for performing signal processing or controlling the operation of the telephone, a memory 6 for storing an operation program of the telephone, a timer 7 for performing time control, a speaker 8 for converting demodulated audio signals and the like to audio, It comprises a microphone 9 for converting into a signal and a display operation unit 10 for displaying control information and the like or for inputting information from a user. In the figure, the user turns on the power of the mobile phone 1, measures and confirms the electric field intensity of the radio wave by operating the operation display unit 10, then dials by key input, and establishes a link channel with the base station. Is established, the microphone 9 and the speaker 8 perform transmission and reception. These operations are performed via the modem unit 4, the RF unit 3, and the antenna 2 under the control of the control unit 5.

The portable telephone 1 according to the present invention has a feature in processing when the portable telephone 1 enters a standby state without establishing a link channel with a base station. Explain the contents. In FIG. 1, processing when the mobile phone 1 enters a standby state without establishing a link channel with a base station is determined in advance as a processing menu illustrated in FIG. 2, and operation of each menu is performed. The program is stored in the memory 6. And
The user operates a key on the display operation unit 10 to
The treatment can be freely selected from the menu. The setting contents of the processing menu are whether or not to perform automatic retransmission, and when performing automatic retransmission, the time interval and the number of retransmissions. By setting the processing menu,
The mobile phone 1 performs the following operation.

In other words, if “do not automatically retransmit” in the processing menu of FIG. 2 is selected by a key operation on the display operation unit 10 and a link channel is not established with the base station, By the operation, the telephone 1 returns to the standby state. Next, when “automatic retransmission” is selected in the processing menu, the control unit 5 stores the telephone number for which the channel assignment has been rejected in the memory 6. Then, based on the time interval of the automatic retransmission set in the processing menu, the control unit 5 operates the timer 7 from the time when the channel assignment rejection signal is received. When the count time of the timer 7 reaches the automatic retransmission interval set in the processing menu, the control unit 5 reads out the stored telephone number from the memory 6 and again sends a link channel establishment request to the base station based on the information. Send to. If a link channel rejection is sent again from the base station in the first automatic retransmission,
The control unit 5 sets the timer 7 again according to the setting of the number of automatic retransmissions in the processing menu, and transmits a link channel establishment request signal to the base station when the set time has elapsed. The processing content illustrated in FIG. 2 is a menu for performing automatic retransmission twice at three-minute intervals.

[0010] The mobile phone 1 notifies the user by sounding from the speaker 8 when the line can be connected by the automatic retransmission by the processing menu. In this case, a ring tone different from a normal ring tone is used to prevent confusion for the user. If the user cannot dial the first telephone number to establish a link channel with the base station and subsequently dials the second telephone number and cannot establish a link channel, the control unit 5 Is stored in the memory 6, and the link channel establishment request signal is automatically retransmitted. In this case, it is possible to configure so that the order of the telephone numbers to be automatically retransmitted can be selected by the setting of the user.

[0011]

As described above, according to the present invention, P
Since the HS telephone is configured to automatically retransmit a link channel establishment request signal at a specified time interval and at a specified number of times even if a link channel with a base station cannot be established and enters a standby state, the user is busy. In such a case, there is a remarkable effect that it is possible to prevent the trouble of re-applying repeatedly.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a PHS mobile phone according to the present invention.

FIG. 2 is a diagram showing an example of a processing menu for a link channel establishment request in a standby state of the PHS mobile phone according to the present invention.

FIG. 3 is a flowchart of a PHS mobile phone link channel establishment sequence.

[Explanation of symbols]

1. Mobile phone, 2. Antenna, 3. R
F part, 4 ... Modulation / demodulation part, 5 ... Control part, 6
..Memory, 7..Timer, 8..Speaker,
9 ・ ・ Microphone 、 10 ・ ・ Display operation unit

Claims (1)

[Claims] 1. A portable telephone equipped with wireless signal transmitting / receiving means, transmission / reception data modulation / demodulation means, storage means, and control means, when there is no idle line between base stations at the time of dialing and a standby state is established. A mobile phone, wherein a telephone number of a called party is stored in the storage means, and the system automatically redials at a preset time interval and number of times.