KR970011687B1 - Location registration of cellular phone - Google Patents

Abstract

the first procedure of performing data up of channel information of a cell site in a memory means through a selected control channel after selecting the control channel by scanning the alloted channel and the cell site according to the power on of the cellular phone; and the second procedure setting location registration by transferring the own location registration message to the cell site if the fixed time has lapsed in order to receive the channel information of the cell site after performing the first procedure.

Description

How to register your cell phone

1 is a block diagram of a typical cellular phone.

2 is a flow chart for call processing in a conventional cellular phone.

3 is a flow chart for realizing a method for widening the position of a cellular phone according to the present invention.

* Explanation of symbols for main parts of the drawings

1: duplexer 2: receiver

3: transmitter 4: frequency synthesizer

5: central processing unit 6: first memory unit

7: 2nd memory part 8: 3rd memory part

9: keypad 10: display

11: voice processing unit SPK: speaker

MIC: Microphone

The present invention relates to a cellular phone. In particular, the cellular phone alone is forced to register its location on the cell site side at predetermined time intervals so that the call signal is correctly received to improve the call service.

As shown in FIG. 1 of the accompanying drawings, a general cellular phone is applied from a cell site side and a duplexer 1 which transmits and receives a high frequency call message of 800 MHz with the cell site side through an antenna ANT. A receiving unit 2 for receiving a call signal, a handover data and a call message to be transmitted, a transmitting unit 2 for transmitting and receiving a call signal, a location registration message and a call message for attempting a call connection with a specific counterpart, and a call message to be transmitted A frequency synthesizer 4 for extracting a carrier from a received call message and detecting only a pure voice call signal, and a central processing unit for controlling overall operations according to the use of a cellular phone and the execution of a call over a wireless channel ( 5), a first memory unit 6 storing operation program data according to the use of a cellular phone, and a second memory unit storing processing data to be transmitted and received. (7), a third memory unit 8 for storing a phone number for Hangul, special characters and an outgoing call, and storing a phone number for speed dialing, a ten key (0 to 9) and a predetermined function; A keypad unit 9 having a key and inputting an overall key signal for forming a call path, a display unit 10 for displaying an operation state according to the use of a cellular phone and a telephone number, a special character, etc. to the user; A voice processor 11 for modulating and demodulating and processing a call voice signal transmitted and received, and a speaker SPK and a microphone MIC are provided as handset means.

Location registration with the cell site side generated in accordance with the movement in the cellular phone as described above will be described with reference to FIG.

In the standby mode (step 101) in which the cellular phone selects the channel having the best received electric field strength from the cell site axis and the control channel assigned to the cellular phone, a key signal for calling a specific counterpart from the keypad 9 is applied. After storing the other party's telephone number in the third memory unit 8 and detecting the input of the outgoing key signal from the keypad unit 9, the telephone number stored in the third memory unit 8 is transferred to the cell site through the duplexer 1. When the outgoing call (step 102) or the incoming call (step 102) received through the duplexer 1 is detected from the cell site side, the central processing unit 5 performs the voice processing unit 11, the transmitting unit 3 and the receiving unit 2 In the state of making a call with the cell site by controlling the selected control channel as a data channel, the central processing unit 5 is connected to another cell site from the cell site through the receiver 2. message Is continuously detected (step 104) (step 105). At this time, if a handover message is detected, after performing location registration with the cell site receiving a new service relay (step 106), a data channel is allocated and a continuous call is performed.

In such a conventional cellular phone, when a handover connected to another cell site is detected, a call message transmitted and received for a predetermined time to receive a new location registration and data channel is lost, and the location registration of the cellular phone is limited to the cell site. Since the location registration is manually generated, if the location of the cellular phone registered once is deleted from the database of the cell site, the call connection with the cell site is impossible and the efficiency of providing the call service is reduced, and the location registration of the cell phone is reduced. If the cell site does not receive the message although the message is transmitted, there is a problem that the efficiency of the call service is reduced.

The present invention has been made in view of the above-described problems, and its purpose is to provide a service for a call connection by forcibly registering its own location at predetermined time intervals independently of the cellular phone regardless of whether a handover message is received from the cell site. The efficiency is improved to provide reliability in use.

A feature of the present invention for achieving the above object is that in a cellular phone, the cell site and the assigned channel is searched according to the power-on of the cellular phone to select a control channel and then store the channel information of the cell site through the selected control channel. The first step of data up to the means, and the detection of the elapsed predetermined time set to receive the channel information of the cell site after performing the first step, and forcing the user's location registration message to the cell site when the predetermined time elapses. It provides a location registration method of a cellular phone, characterized in that it comprises a second step of transmitting and setting the location registration.

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

3 is a flowchart for realizing a location registration method of a cellular phone according to the present invention.

When the cellular phone is turned on (step 201), the cellular phone searches for an allocated wireless channel from the cell site (step 202), selects a channel having the best strength of the received electric field formed between the cell site and the cell phone. (Step 203), information on the cell site received through the selected channel is stored in a predetermined memory means (step 024), and the call waiting mode is entered (step 205). Thereafter, the cellular phone detects whether a predetermined time elapsed to receive the channel information of the cell site through the selected channel (step 206), and the predetermined time elapses after the predetermined time elapses, and the cell phone transmits its own location registration message to the cell site. Location registration by the cell phone alone. This operation is repeatedly performed by the cellular phone at predetermined time intervals set to receive the information on the cell site side, so that the cell site side is surely aware of the registration of the cell phone itself.

As described above, the present invention forcibly executes location registration at predetermined time intervals for data-up of the channel of the cell site by the cell phone alone, thereby improving reliability in call connection with the cell site, thereby providing a high quality call connection service. .

Claims (1)

A cell phone, comprising: a first process of searching for a cell site and an allocated channel according to a power-on of a cellular phone, selecting a control channel, and then data-upting channel information of the cell site to a memory means through the selected control channel; And a second step of detecting whether a predetermined time elapsed to receive the channel information of the cell site after performing the first step and forcibly transmitting a location registration message to the cell site when a predetermined period elapses is set. Location registration method of a cell phone, characterized in that.