FR2790164A1 - METHOD FOR TRANSMITTING INFORMATION TO A MOBILE TELEPHONE FROM A CELLULAR NETWORK, THROUGH A BROADCASTING NETWORK, AND ASSOCIATED MOBILE TELEPHONE - Google Patents

Abstract

Method of transmitting information to a mobile telephone (30) of a cellular network (100), associated with a broadcasting network (104), in which information is transmitted to the telephone (30), for example an indication of 'received call, through a broadcasting network (104), in particular when the telephone (30) is out of range of the cellular network (100).

Description

METHOD FOR TRANSMITTING INFORMATION TO A

  MOBILE TELEPHONE OF A CELLULAR NETWORK, A

  THROUGH A BROADCASTING NETWORK, AND TELEPHONE

ASSOCIATED MOBILE

  A cellular telephone network, for example GSM, comprises a plurality of base stations, each associated with a topographic cell. The set of these cells defines the geographic area of coverage of the cellular network, in which the mobile telephones of this network can make or receive calls, or else access services of the cellular network such as voicemail, SMS messaging ( Short Message Service), etc. At the outset, it will be noted that by "cellular telephone network" is meant both a network of cellular base stations and a network of

terrestrial satellites.

  Ideally, for a given territory, the cellular network should cover the entire territory. In reality, the coverage area of the cellular network generally includes "coverage holes", in which the mobile phones are outside the coverage area.

  cellular and, therefore, out of range of the cellular network.

  Beyond this problem, it is clear that with the current development of mobile telephony, cellular networks are increasingly loaded, even overloaded. And it is ultimately this problem that the

plaintiff wanted to resolve.

  To this end, the invention relates to a method of transmitting information to a mobile telephone of a cellular network, associated with a broadcasting network, in which information is transmitted to the telephone.

  mobile through the broadcasting network.

  Advantageously, said information is transmitted to the telephone through the broadcasting network when the telephone is out of range.

of the cellular network.

  It will be noted that the method of the invention allows, in general, to reach the mobile phone when the latter is out of reach of the

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  cellular network, because it is in a cover hole in the

  cellular network or the fact that he has switched off his cellular part.

  Thanks to the combined operation of the cellular network and the broadcasting network, with wide coverage area, the cellular network can reach the mobile phone, inside and outside the area of

cell coverage.

  In a particular embodiment, on the network side, a 1o message is prepared containing the information to be transmitted and it is encapsulated in a transport envelope through the broadcasting network, before transmitting it to the telephone through the broadcasting network. , and, side

  phone, we decapsulate the received message.

  Advantageously, the telephone having access to a messaging service of the cellular network allowing it to receive messages of determined format, on the network side, a message having said format is prepared in order to

  transmit it to the phone through the broadcasting network.

  An existing messaging service of the cellular network is thus used to transmit the information to the mobile telephone through the broadcasting network. In the event of an incoming call on the telephone, it is possible to transmit to the latter, through the broadcasting network, an indication of received call, the telephone number of the caller, a written message from the caller and / or a

caller's voice message.

  Advantageously, the telephone being arranged to operate in a cellular mode and in a radio receiver mode, when the telephone is outside the coverage area of the cellular network, it is deactivated

  the cellular mode and the radio receiver mode is activated.

  As the cellular part is switched off outside the cell coverage area, the telephone no longer seeks to detect the cellular network and consequently saves its battery, while remaining attentive to any incoming information transmitted through the network. broadcasting.

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  The invention also relates to a mobile telephone for implementing the above method, arranged to communicate through a cellular network, comprising radio reception means from a broadcasting network, characterized in that said reception means radio being arranged to receive information from the cellular network transmitted through the broadcasting network, means are provided for decapsulating said information from a transport envelope through

the broadcasting network.

  The invention will be better understood using the following description of a

  particular embodiment of the method of transmitting information to a mobile telephone of a cellular network and of a particular embodiment of the associated mobile telephone, according to the invention, with reference to the appended drawing in which: - Figure 1 represents a functional block diagram of the mobile telephone, according to the particular embodiment and - Figure 2 represents a plurality of base stations of the cellular network of the mobile telephone and a plurality of terminals of an associated broadcasting network. The mobile telephone 30, represented in FIG. 1, is arranged to communicate through a cellular telephone network 100, in this case GSM, comprising a plurality of base stations 105a-105e, associated

  each to a topographic cell, and a server 40, explained below.

  The set of topographic cells defines the coverage area 101 of the GSM network 100. In operation, when it is in the cellular coverage area 101, the mobile telephone 30 is intended to pair with one of the base 105a-105e, in order to communicate through the

cellular network 100.

  The cellular coverage area 101 covers most of a given territory T, extending inside the periphery 102 shown in FIG. 2, and comprises, on this territory T, "coverage holes" 103a-103d , no

covered by the GSM 100 network.

  A broadcasting network 104, in this case RDS (Radio Data System -

  radio data system), is associated with the cellular network 100 and here covers the entire territory T, in other words the coverage area 101 and the coverage holes 103a-103d of the cellular network 100. This RDS network 104 includes a plurality of terminals 106a-106e transmitters,

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  RDS broadcasting, each associated with a base station 105a-105e of the cellular network 100 and located in the vicinity thereof. Each RDS terminal a (105b-105e) is intended to take over from the base station 106a (106b-106e) with which it is associated, for the transmission of information to a mobile telephone of the cellular network 100, in the case o this phone is outside the range of base station 106a (106b-106e) at

  which it was matched, as will be explained later.

  The server 40 is intended to direct the calls, sent and received, by a mobile telephone of the cellular network 100 and to manage a voice messaging service, an SMS messaging service (Short Service Message

  - short message service) and an RDS broadcasting service.

  The SMS service allows mobile phones in the cellular network 100 to send and receive short messages, here written, in SMS format, that

  it will be called "SMS messages" thereafter.

  For the voice messaging service, the server 40 is intended, in the event of an incoming call on a mobile telephone, in particular when the latter is outside the range of the cellular network, - to record the telephone call number of the appellant; - to direct the call to an answering / recording machine intended to broadcast an announcement inviting you to leave a message and, if necessary, to record a voice message from the caller, and

  - to transmit to the mobile telephone a received call indication message.

  The RDS broadcasting service allows mobile phones in the cellular network 100 to receive information through the broadcasting network. For this service, the server 40 is connected to the RDS broadcasting terminals 106a-106e and comprises - a module for preparing a message, in this case an SMS message, containing the information to be transmitted, - a module for encapsulating the message in a transport envelope through the RDS 104 network and - a module for transmitting the encapsulated message to a mobile telephone of the cellular network 100, through the RDS network 104, as will be

  explained in the description of the process.

  The mobile phone 30 has access to SMS messaging, voice messaging and RDS broadcasting services. It includes a block

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  GSM radio transmission and reception 1, connected to a GSM radio antenna 2, a "vocodec" 3, a block 4 for detecting the cellular network 100, a block

  GSM 5, and a man-machine interface 6-12.

  The detection block 4 is intended to detect the presence of the GSM cellular network 100, using radio signals received by the radio block 1, in order to check whether the telephone 30 is in the cell coverage area 101. io L man-machine interface includes a microphone 6, connected to an analog / digital converter (ADC) 7, a speaker 8, connected to a digital / analog converter (DAC) 9, an input keyboard 10, a screen display 11 and a "buzzer" 12 for emitting a beep, or audible signal. The "vocodec" 3 is intended to encode and compress voice data to be transmitted, according to a compression rate compatible with the data rates supported by the cellular network 100, and to decode and to

  decompress received voice data.

  The GSM block 5 includes a GSM application allowing the telephone 30 to execute a GSM communication protocol and to control the

  operation in GSM cellular mode of the telephone 30.

  The telephone 30 also includes an SMS block 16, connected to the GSM block, comprising a memory 13 of SMS messages, intended to be sent or previously received, as well as an application for preparing and sending SMS messages and a reception application. and editing, here by display on the screen 11, of SMS messages, respectively represented by

modules 14 and 15.

  The telephone 30 further comprises a radio reception tuner 18 of the RDS network 104, connected to a radio antenna 17, a decapsulation block 19 and a block 20 for controlling the operation of the telephone 30 in

  radio receiver mode, as will be explained in the description of the

  process. The decapsulation block 19 is connected to the tuner 18 and to the SMS block 16. A mode selection block 21, connected to blocks 5 and 20, is intended to activate one of the two modes, cellular and radio receiver, and to deactivate

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  the other mode, either automatically, under the control of the detection block 4, or under the control of a user by pressing a mode selection key of the input keyboard 10, the latter comprising a key for programming either automatic mode selection or "manual" selection, in other words by the user. Deactivation of one of the modes, cellular and radio receiver, consists in switching off and deactivating the elements associated with this mode. Thus, to deactivate the GSM cellular mode, the radio block 1, the detection block 4, the "vocodec" 3 and the GSM block are turned off and, to deactivate the radio receiver mode, the

  1o tuner 18, the decapsulation block 19 and the control block 20.

  Finally, the telephone 30 comprises a central control unit 22, in this case a microcontroller, to which all the elements of the telephone 30 are connected, and intended to execute the applications and to control the

telephone operation.

  The method of transmitting information to the mobile telephone 30, when the latter is outside the range of the cellular network 100, will

now be described.

  We place ourselves in the following situation. The mobile telephone 30, operating in cellular mode, is paired with a cellular base station a and moves over the territory T. It momentarily leaves the coverage area 101 of the cellular network 100, by entering a

  coverage 103a, and is then out of range of the cellular network 100.

  The mobile telephone 30 being in manual mode selection, a user controls activation of the radio receiver mode and deactivation of the cellular mode, by selecting the radio receiver mode using the mode selection key on the keyboard 10. The tuner 18 then automatically locks onto the radio broadcasting frequency of the nearest RDS broadcasting terminal 106a, namely that associated with the last base station 105a to which the mobile telephone 30 was paired.

  before leaving the cell coverage area 101.

  In the case where the mobile telephone 30 is called, while it is in the cover hole 103a, the server 40 records the telephone call number of the caller, and directs the call to the answering machine / recorder

  which, if necessary, records a voice message from the caller.

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  Then the server 40 prepares an SMS message containing an indication of received call, in this case the indication "a received call", to indicate the reception of a call, as well as the telephone call number of the caller. , encapsulates the SMS message in a transport envelope through the RDS network 104, and finally transmits it to the mobile phone 30, through the RDS network 104. The SMS message is transmitted to the phone

  mobile 30 via the RDS 106a broadcast terminal.

  In the mobile telephone 30, the SMS message of call indication is received io by the tuner 18 then decapsulated from its transport envelope through the RDS network 104 by the decapsulation block 19. Under the control of block 20, the SMS message for call indication is recorded in the SMS message memory 13 and displayed on the display screen 1 1 by the editing block 15. In addition, block 20 activates the buzzer 12 which emits a

  audible signal to warn the user of the reception of an SMS message.

  In the case where the telephone 30 is in automatic mode selection, when it leaves the cellular coverage area 101, the selection block 21 activates the radio receiver mode and deactivates the cellular mode, under the

  control of the detection block 4 which no longer detects the GSM 100 network.

  The user can then activate the cellular mode of the telephone again, using the mode selection key, thereby waking up the detection block 4, in order to check whether it has come out of the cover hole 103a and s 'he

  found again in cell coverage area 101.

  When the mobile telephone 30 is in the cell coverage area 101 and is paired with one of the base stations 105a, its user can select the radio receiver mode, thereby activating the radio receiver mode and deactivating the mode cellular, using the mode selection key of the input keyboard 10. Because the cellular mode is deactivated, the telephone 30 is out of range of the cellular network 100 but can nevertheless receive information from the cellular network 100 , through the RDS network 104, via the RDS broadcasting terminal 106a associated with the last base station 105a to which the mobile telephone 30 was paired before deactivating the cellular mode, as

previously explained.

  As a variant, the mode selection block 21 is arranged, when the telephone 30 is in automatic mode selection and the mode of

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  radio receiver is selected, to wake up the block 4 for detecting the cellular network 100, at determined time intervals and for short periods, in order to regularly and automatically check whether the telephone 30 is in the cell coverage area 101 , and, if necessary, order activation of cellular mode and deactivation

  radio receiver mode by mode selection block 21.

  The cellular network 100 could transmit any other type of information to the mobile telephone 30, through the broadcasting network 104, such as 0o for example, in the event of an incoming call, a message, written or voice, coming from the caller. It would thus be possible to transmit to the mobile telephone 30 the voice message of the caller recorded by the answering machine / recorder of the

waiter 40.

  Instead of the RDS network, one could use the DAB (Digital Audio Broadcasting) network, or any other network.

broadcasting of this type.

  The telephone could comprise only one radio antenna connected to the radio reception block of the broadcasting network and to the cellular radio transmission and reception block, by means of a routing block intended for sorting the received signals. , according to their frequency, and to direct them to one of the two radio blocks, depending on whether they are signals from the

  broadcasting or cellular network signals.

  Finally, we could consider that the phone works in both mode

  cellular and radio receiver mode.

  One could also consider transmitting information to the mobile telephone of the cellular network, through the broadcasting network, even when the telephone is in the coverage area of the cellular network, whether its cellular part is activated or switched off, for example for

  offload the overloaded cellular network.

  Finally, in the above description, information is transmitted

  relating to a received call, through the broadcasting network. One could also consider transmitting to the mobile telephone, through the broadcasting network, other types of information such as the time by

example.

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Claims (10)

  1- Method for transmitting information to a mobile telephone (30) of a cellular network (100), associated with a broadcasting network (104), in which information is transmitted to the telephone (30) through a broadcasting network (104).   2- The method of claim 1, wherein said information is transmitted to the telephone (30) through the broadcasting network (104)   when the telephone (30) is out of range of the cellular network (100).   3- Method according to one of claims 1 and 2, wherein, network side   (101, 104), a message is prepared containing the information to be transmitted and it is encapsulated in a transport envelope through the broadcasting network (104), before transmitting it to the telephone (30) through the network. broadcasting (104), and, on the telephone side (30), we decapsulate the message received.   4- Method according to one of claims 1 to 3, wherein, the telephone (30) having access to a messaging service of the cellular network (100) allowing it to receive messages of a determined format, on the network side, on prepares a message in said format in order to transmit it to the   telephone via the broadcasting network (104).   - Method according to one of claims 1 to 4, wherein, in the event of a call   entering the telephone (30), a call indication is transmitted to the latter   received over the broadcasting network (104).   6- Method according to one of claims 1 to 5, wherein, in case of call   entering on the telephone (30), the telephone number is transmitted to it   the caller's telephone network (104).   7- Method according to one of claims 1 to 6, wherein, in the event of a call   entering the telephone (30), a written message from   calling him through the broadcast network (104).   8- Method according to one of claims 1 to 7, wherein, in the event of a call   entering the telephone (30), a voice message is transmitted to it   calling him through the broadcast network (104). 2790164   9- Method according to one of claims 1 to 8, wherein, the telephone   (30) being arranged to operate in a cellular mode and in a radio receiver mode, when the telephone (30) is outside the coverage area (101) of the cellular network (100), the mode is deactivated   cell and activate radio receiver mode.   - Mobile telephone for implementing the method of claim 1, arranged to communicate through a 0o cellular network (100), comprising means (18) for radio reception of a broadcasting network (104), characterized by since said radio reception means (18) being arranged to receive information from the cellular network (100) transmitted through the broadcasting network (104), means (19) are provided for decapsulating said information from a transport envelope through the broadcasting network (104). 1 1- The telephone as claimed in claim 9, in which the mobile telephone is arranged to operate in cellular mode, to communicate through the cellular network, and in radio receiver mode, to receive information transmitted through the broadcasting network, activation / deactivation means are provided for activating one of the two   modes, cellular and radio receiver, and to deactivate the other mode.   12- Telephone according to claim 10, wherein there are provided cellular network detection means arranged to automatically control the activation of the radio receiver mode and the deactivation of the cellular mode, when the telephone is out of range of the cellular network.   13- Telephone according to one of claims 9 to 1 1, wherein, the   telephone (30) having access to a messaging service of the cellular network (100) allowing it to receive messages, and comprising means (15) for editing said messages, means (20) are provided for controlling editing by said editing means (15) of a received message   by the radio reception means (18) of the broadcasting network (104).