JP3069464B2 - Mobile communication device - Google Patents

Abstract

PURPOSE:To make it possible to easily change/update the program of a mobile station when the service of a system is updated by extracting the program of the mobile station that a base station superposes on notifying information and transmits by the mobile station and writing the program in the program memory at a station in use, CONSTITUTION:A CPU 4 controls the whole of a mobile station in accordance with the basic operation program which is preliminarily stored in the ROM of a storage part 5 for program. A radio/radio control part 1 and a TDMA/ channel CODEC part 2 perform a perch scanning, set a frequency and read the program update information in the notifying information from a base station. The mobile station updates the programs of a storage part 6 for program such as EEPROM, etc., by this update information, and when the update is rightly terminated, the mobile station displays the update termination on an LCD, etc., and shifts to a normal waiting operation. Thus, the changes and additions of various kinds of services are generated in a system, the changes and updates of the program of the mobile station can be easily performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital mobile communication system, and more particularly to a portable communication system such as a car telephone.

[0002]

2. Description of the Related Art At present, with the introduction of digital technology, mobile communication systems are rapidly developing.
2. Description of the Related Art The spread of mobile phones has been remarkable, and the expectation for personal communication that can be realized anytime, anywhere, with anyone is rapidly expanding. This mobile communication system can be broadly classified into voice communication, non-voice communication, use on the premises, and use on the outdoors.

[0003] For example, in a system premised on use in a premises, various services such as data communication and use as a database terminal can be received as well as telephone use. If various services to be provided are changed or added, the mobile communication terminal also needs to change or update the program at the interface. Normally, a program change or the like at the interface of the mobile communication terminal is handled by exchanging a ROM (Read-Only Memory) or the like.

That is, when a service is changed or added, a change in software program at the interface of the mobile communication terminal is performed by a special terminal operation such as replacement with a ROM in which a new program is written. We cope by doing work.

[0005]

However, when the various services described above are changed or added (that is, updated), the ROM for changing or adding the software program of the interface of the mobile communication terminal is changed. Work such as exchange requires special skills,
The work was time-consuming. For example, when changing the software program of the mobile communication terminal, collect the mobile communication terminal once, and then a technician who is familiar with the terminal exchanges the ROM or the board, or connects another device and executes the program. Processing such as reading data was necessary.

[0006] When the terminal installation location is limited to a relatively narrow range, such as in an on-premises use type system, this processing is temporarily performed by taking time to change or add a service. It was possible. However,
Especially, in outdoor type systems, terminal users are widely distributed and use system services, so the distance between the terminal users and terminal suppliers is large, and in order to cope with service changes, If the terminal cannot be collected during the period of collecting the terminal for work, or if it is impossible to collect the terminal due to distance or time problems, new services will not be available. Various problems have been pointed out.

[0007] Therefore, the present invention provides a mobile communication system that can easily and quickly add a new service without imposing a great burden on terminal users and terminal suppliers even when system services are changed or added. It is an object of the present invention to provide a system that can receive services, and a method for constructing the system.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been made in consideration of a digital mobile body.
The communication device performs a search for a perch channel,
The receiving frequency is set to the frequency of the perch channel, synchronization is established, it is determined whether the mode is the program data receiving mode, and if the mode is the program data receiving mode, the extended information element in the received broadcast information is read, and the A control unit that determines whether the extended information element is program update information and updates the program based on the received information when the extended information element is program update information is provided.
And a digital mobile communication device . Further, the above-described digital invention, characterized in that the program update is performed when the apparatus is not in use by the control unit
It is a mobile communication device .

According to a second aspect of the present invention, a broadcast information in which a code indicating a change or update of a mobile station program is transmitted from the network system side to the mobile station side within a predetermined time, and the mobile station side transmits the broadcast information. And rewriting the program memory of the mobile station based on the received broadcast information from the network system within the predetermined time.

[0010]

According to the above-described method, even when a need to change or add a service occurs in a mobile communication system, broadcast information transmitted from a base station of a network system service is included in broadcast information for a mobile station. Since it has means for superimposing and transmitting program data, the program data information can be transmitted to the mobile station, and the mobile station extracts the program data information and writes it in the program memory in the mobile station. The provision of the means enables the mobile station to receive the program data information.

[0011] Thereby, the hardware change of the mobile station (RO)
It is possible to change or update the program of the mobile station without performing M exchange or the like.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to the drawings. The following description is made mainly on the mobile station.

FIG. 1 is a schematic diagram showing the configuration of a mobile station, and FIG. 2 is a flowchart showing a procedure for updating a program storage unit in the mobile station.

In FIG. 1, reference numeral 1 denotes a radio and a radio control unit, which includes a transceiver, a synthesizer, a power amplifier, a modem and the like. 2 is TDMA (Tim
eDivision Multiple Accesses
s) / channel CODEC (Code-Decode)
For assembling and disassembling the signal of the baseband unit. Reference numeral 3 denotes an audio CODEC / audio processing unit, and audio C
ODEC, microphone, speaker, etc. 4 is C
PU (Central ProcessingUni)
t), wherein the control unit controls the operation of the entire mobile station.
You . Reference numeral 5 denotes a first program storage unit, which is a ROM that stores a program for controlling a basic operation that is not affected by a change or addition of a service. Reference numeral 6 denotes a second program storage unit for changing a service,
A writable memory unit in which a program that can be changed by addition is stored.
EPROM (Electrically Erasab)
le Programmable Read-Only
Memory), or a battery-backed RAM (Random Access read-w)
write memory). Reference numeral 7 denotes an input key, an LCD (Liquid Crystal Disp), and a man-machine interface.
lay), LED (Light Emitting D)
iode), a buzzer, an external device connection circuit, and the like.

The control of the operation in each step from the state S1 to the state S9 shown in FIG.
This is performed by operating a program preset in the first program storage section 5.

In FIG. 2, the terminal user knows that the program needs to be changed by, for example, notification by direct mail or notification information, and when the program is to be updated from now on, when the power is turned on, At the same time, the program data reception mode is set.
This setting is performed, for example, by simultaneously pressing another arbitrary key when the power is turned on.

When the power of the mobile station is turned on, the mobile station performs a perch channel scanning operation and sets the channel having the highest reception level as its own perch channel (state S1). The reception frequency is set to the frequency of the perch channel, the TDMA / channel CODEC unit 2 receives time-slotted time slots, and establishes synchronization (state S2). After synchronization is established, the mobile station determines whether or not it is in the program data reception mode (state S3). If not, the mobile station shifts to a normal standby operation.

The extended information element transmitted by the network system is one information element in the broadcast information message as shown in Table 1. The network system codes the program update information by adding a header or the like to this extended information element. The header includes an "extended information identifier" indicating the program update information, "the number of messages" indicating how many broadcast information messages the program update information is composed of, or "the number of remaining messages". . These pieces of broadcast information are repeatedly transmitted to the mobile station.

[0019]

[Table 1]

When the mobile station is in the program data reception mode in the determination of the state S3, the extended information element in the broadcast information is read (state S4), and it is determined whether or not the information element is the program update information. (State S
5). If it is not program update information, the process shifts to a normal standby operation.

If it is determined in the state S5 that the extended information element is the program update information, the extended information element is read as program update data, and the program is updated (states S6 and S7). The update of the state S7 is shown in FIG.
This is performed for the second program storage unit 6 in FIG.

When all the update data has been correctly received and the update has been completed (state S8), the end of the update is notified on a display such as an LCD or by sounding a buzzer or the like (state S8).
9). Thereafter, the mobile station shifts to a normal standby operation and can make and receive calls.

By updating the program in the above-mentioned network system while the battery is being charged, for example, at bedtime, the time during which the apparatus cannot be used for telephone calls can be reduced.
Also, there is no need to worry about battery consumption.

Note that it is necessary to provide a storage unit for a program in the mobile station. In this case, a storage unit for performing basic operations of the mobile communication system can be changed or updated. In other words, by providing two storage units, that is, a writable storage unit, it is possible to reliably change or update the program of the mobile station.

[0025]

According to the present invention, when various services are changed or added in a mobile communication system,
In particular, the program of the mobile station can be easily changed or updated without requiring a technician familiar with the terminal, and the burden on collecting the terminal can be reduced. Also, since the updating and changing of the program can be performed almost simultaneously on all terminals, the time required for system switching can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a configuration of a mobile station according to the present invention.

FIG. 2 is a diagram illustrating a flowchart of a processing procedure for updating a program storage unit in a mobile station.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Radio / radio control part 2 TDMA / channel CODEC part 3 Audio CODEC / audio processing part 4 CPU 5 First program storage part 6 Second program storage part 7 Man-machine interface and other circuits

Continuation of the front page (56) References JP-A-5-12000 (JP, A) JP-A-61-220535 (JP, A) JP-A-62-38624 (JP, A) JP-A-4-345332 (JP, A) , A) Japanese Utility Model Hei 4-66833 (JP, U) Special Table Hei 4-505082 (JP, A) International Publication No. 94/3879 (WO, A1) (58) Fields surveyed (Int. Cl. ⁷ , DB name) ) H04B 7/26 H04Q 7/00-7/38

Claims (2)

(57) [Claims] A digital mobile communication device searches for a perch channel, sets a receiving frequency to a frequency of a perch channel, establishes synchronization, determines whether or not a program data receiving mode is set, and determines whether or not a program data receiving mode is set. In the case of the reception mode, the extended information element in the received broadcast information is read, and it is determined whether or not the extended information element is the program update information. A digital device comprising a control unit for updating a program on the basis of
Mobile communication device. 2. The digital updating system according to claim 1, wherein the program update by the control unit is performed when the apparatus is not used.
Mobile communication device.