FR2958105A1 - APPEAL CAPACITIES WHEN THE BATTERY IS DISCHARGED - Google Patents

Abstract

The invention proposes a method of telephone call in which a mobile phone (2) comprising a power supply unit (12), an electromagnetic transponder and a set of authorization keys (32) for access to a telephone network (3) is approached from a telephone (1) provided with the contactless functionality.

Description

B10265 - 09-RO-289 1 CAPACITY OF APPEAL WHEN THE BATTERY IS UNLOADED

Technical Field The present invention relates to mobile telephone systems. More particularly, the invention aims to enable the management of call (s) or the exchange of data via a radio telecommunications network, even when the battery of the mobile is discharged, while allowing to ensure easy execution of the call through the system. Technological background With the various technological evolutions of recent years, the energy retention time and the weight / power ratios of the batteries used in nomadic objects evolve every day. However, the functionality of mobile phones to perform data exchange and phone calls, evolving in parallel, the average time of autonomy of such a nomadic communicating object increases little or even decreases in the mobile type "smart phone", with many associated features, such as for example camera, camera, game console, diary, radio device or even for example music player. One solution is to use backup batteries, chemical batteries, single-use batteries, or a spare battery. B10265 - 09-RO-289

2 of the same type as the battery delivered with the nomad object communicating. This solution of an additional backup battery offers the advantage of always having an operational battery available, provided, however, to make sure that we always have the battery on oneself and that this battery is always charged, which is a fairly complex logistics, especially for example for frequent travelers and other "businessmen".

The solution of a single-use chemical battery offers the advantage of providing an opportunity to make a phone call without worrying about energy management problems such as the maintenance of the phone and especially the recharging his battery.

Indeed, for example in case of need to make an urgent phone call while the mobile battery is discharged, it is possible to replace the conventional battery of the phone with a battery backup purchased for this purpose. In the case of a single-use chemical battery, it is nevertheless necessary to carry out various delicate and technical manipulations, namely to remove an insulating film which thus releases a chemical component and makes it possible to have energy for a few minutes to make its call. This solution has the disadvantage of being disposable, therefore expensive, particularly polluting and moreover, this type of battery does not exist for all types of mobile. Moreover, in each of these two cases, it is necessary to proceed to a manipulation consisting of exchanging the battery, either by a disposable battery or by a reserve battery, called backup, which involves manipulations sometimes delicate and not necessarily to the reach of everyone. Another solution is to transfer the USIM card in ISO Plug IN format, which must be inserted into a mobile phone, the mobile whose battery is discharged into a mobile whose battery is operational.

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Thus, it is possible to use a telephone loaned by a friend for example to make a phone call. Indeed, by having data (IMSI / Ki) related to a prepaid account or subscription whose keys are in this USIM card in ISO Plug IN format, it is allowed to make a phone call without using the value units of the subscription or the prepaid account of the person who lends his phone. However, this solution involves a complex manipulation of USIM cards, with replacement of the USIM card of the phone holder, by that of the person who wishes to make a phone call. At the end of the call, this delicate manipulation must be done again. SUMMARY OF THE INVENTION There is therefore a need for, while respecting a limited cost of the solution, and especially an ease of use, particularly when handled by non-technology enthusiasts, to propose a solution to enable said person to make a phone call easily, while the battery of his own mobile phone is discharged. For this purpose, according to a first aspect of the invention, there is provided a method of telephone call wherein the mobile phone whose battery is discharged is approached from a telephone provided with the contactless functionality.

The mobile phone whose battery is discharged has a power supply block, that is to say in our preferred example a battery pack, (currently unloaded), or batteries or other portable energy storage system. The mobile phone whose battery is discharged also comprises an electromagnetic transponder and a set of access authorization keys to a telephone network. In a preferred implementation, the telephonic network is an EDGE or 3G or LIE type cellular radio network.

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In a simple variant of the invention for example, for a user having a mobile phone according to the invention, when the power supply block of said phone is discharged, the user wishing to make a phone call, he needs and he you just have to approach your mobile phone with the contactless feature. The communication between said telephone and said mobile phone is then of the contactless type. He can then directly make his phone call, using said phone, the set of access authorization keys to a telephone network used is that of the mobile phone. The user thus makes a call or exchange of data using his own telephone data (IMSI / Ki) related to his prepaid account or subscription and whose keys are in his USIM card in ISO Plug IN format. Alternatively, the phone has a set of authorization keys different from that contained in the mobile phone, the phone and the mobile may or may not belong to the same user. According to the present invention, it is thus proposed to the user to bring said mobile phone to a contactless feature, in order to use the features of said phone, while taking advantage of its own telephone data (in particular, its own call number, subscription to a telephone company or prepaid communication contract). For example, the user can borrow the phone from a friend or from his employer, or an association.

Indeed, according to a preferred mode, the mobile and the phone do not belong to the same individual. The user can also, in another variant, approach a telephone terminal provided with contactless functionality and made available for this purpose, in specific locations such as airports, hotel lounges, B10265 - 09-RO-289

bars, post offices, subway stations, or other public places. These public telephone call terminals, equipped with the contactless functionality, are adapted to work in collaboration according to the invention and they comprise in particular a so-called baseband block, providing the telecommunication functionality with the telecommunications radio network. , an energy supply block and a block providing non-contact functionality. The telephone call method in which a telephone mobile comprising an electromagnetic transponder and a set of telephone network access authorization keys (IMSI / Ki) is approached from a telephone provided with the contactless functionality, according to the present invention. invention, makes it possible to make telephone calls while the battery of the first mobile phone is discharged. According to a first type of variant, the energy required for the telephone call is provided by the telephone to said mobile whose battery is discharged. The mobile is then in the configuration where it benefits from the energy of the phone to allow its user to perform for example a phone call, or an exchange of data, relying on the functional blocks of said mobile. According to a second type of variant, the set of access authorization keys to a telephone network is transferred from the mobile phone to the phone via the contactless link, then allowing the user to perform for example a phone call or a data exchange, relying on the functional blocks of said telephone. In embodiments, the method may further comprise the steps of: 1. Approaching the mobile whose battery is discharged from a second telephone, preferably with a distance between the telephone and the mobile less than 10 cm; 2. Set up, automatically or manually, a contactless link between the mobile and the telephone, this link B10265 - 09-RO-289

6 may preferentially be of the NFC (Near Field Communication) type; 3. Check whether or not the telephone accepts to operate according to said method of the invention with this mobile; 4. Check, also optionally, if said mobile accepts to operate according to said method of the invention with this phone; 5. Encrypt or not the communications between the mobile phone and the phone; 6. Allow or not the use of the phone to make a phone call according to the invention, using the set of access keys to the telephone network (IMSI / Ki) contained in the mobile whose battery is discharged; 7. Make said telephone call (or any other exchange with an interlocutor such as exchange SMS, MS, or other types of data); 8. End the communication with this inter-speaker; 9. Terminate the contactless link between the mobile phone and the phone or, if another immediate use is desired, loop back to one of the previous steps 3 through 7, depending on the level of security required. In embodiments, the security levels required for the use of the telephone may indeed vary. Thus, depending on the context of use of the mobile whose battery is discharged, it is possible to change the level of verification of the rights associated with said mobile, according to the level of trust granted by the owner of the telephone to the mobile holder whose battery is discharged. It can be expected to identify the mobile whose battery is discharged by a phone via the exchange of data when the mobile is closer to the phone. A preprogrammed telephone 35 may also be provided to operate only with a series of mobiles, in particular 10 B10265 - 09-RO-289

7 when for example one of their batteries is discharged, these mobiles being well identified beforehand. According to the invention, the mobile can take the form of a mobile phone provided with the contactless functionality but it can also be in the form of a telephone terminal, even mobile or fixed. In the case of a terminal, it may for example be associated with a payment terminal without contact (POS for point of sale in English) or an ATM machine (ATM).

In a first embodiment, the communication is made possible by the fact that energy is transferred via the contactless link between the telephone and the mobile, thus enabling the user of the invention to make a telephone call. using the mobile, according to a "usual" use, of his mobile. According to the second embodiment, only the set of authorization key for access to the radio telecommunication network (IMSI / Ki) is transferred via the contactless link between the mobile and the telephone. Then, the user of the invention, in order to make a phone call, must use the features of the phone. Other embodiments of the invention may be envisaged, such as mobiles and telephones according to the invention, for which the contactless functionality is added a posteriori on telephones not provided with this contactless functionality when they are put in place. on the market, for example via self-adhesive labels, thus making the phones compatible with the invention. According to other aspects of the invention, there is also provided: a computer program comprising instructions for carrying out a method according to the invention, when the program is executed by the mobile and the telephone according to the invention. invention; B10265 - 09-RO-289

8 a system consisting of a telephone and a mobile according to the invention; the telephone call system comprising at least one telephone (1) provided with the contactless functionality and a mobile itself comprising: a power supply block, an electromagnetic transponder; and a set of authorization keys (32) for access to a telephone network. According to a first variant, in this call system, the telephone provided with the contactless functionality provides the energy required for the telephone call. According to a second variant, in this call system, the call method is based on the functional blocks of the telephone, the set of telephone network access authorization keys used being that of the mobile phone. The communication between said telephone and said mobile phone is preferably of the contactless type, and more particularly of the NFC (Near Field Communication) type. The computer program, the system, has at least the same advantages as those provided by the method according to the first aspect of the invention. Brief Description of the Drawings Other features and advantages of the invention will become apparent upon reading the following description. This is purely illustrative and should be read with reference to the accompanying drawings, in which: FIG. 1 schematically illustrates a system consisting of a mobile whose battery is discharged and a telephone according to one embodiment of the invention. ; and FIG. 2 is a flowchart of steps implemented in a method according to one embodiment of the invention.

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DETAILED DESCRIPTION OF EMBODIMENTS Referring to FIG. 1, a system consisting of a mobile 2, whose battery is discharged, is very schematically described, and of a telephone 1 according to one embodiment of the invention. The mobile 2 and the phone 1 do not necessarily belong to the same person, in a variant of the invention. In the telephone 1, are, in a conventional manner, one or more processors, memory blocks (ROM, RAM, EEPROM, Flash, ...), a block responsible for supplying the energy necessary for the operation of said telephone, for example a battery 10, a block 50 offering the features called "base band" access to the network of the telephone company. In the telephone 1 is also a structure 20 and 40, responsible for offering a contactless functionality. The structure 20, 40 has various functional blocks for this purpose, the unit 20 being for example an NFC router (for Near Field Communication) and the unit 40 being an associated antenna.

In the unit 20 is also a block 60 of non-contact protocol conversion, for example ISO 14443 to a protocol conventionally used in mobile phones, for example ISO 7816 and vice versa. An example of this type of block 60 is also described in application FR 2 822 272 of 13/03/01. Block 30 covers the management functionalities of the USIM block as standardized, for example, in 3GPP standards for GSM, EDGE, 3G or LIE protocols. Block 30 communicates with block 20 via the SWP protocol for "Single Wired Protocol" and block 50 according to ISO 7816. Block 30 is optionally, in a preferred variant of the invention, potentially isolatable blocks 20 and 50, especially when the method according to the invention is used.

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On the other hand, the mobile 2, also includes a structure 22 and 42, responsible for providing a contactless functionality. This contactless functionality can be provided by the mobile itself or be proposed via the block 32 in another variant, which block furthermore includes the user's identifiers or set of access authorization keys to the telephone network. (IMSI / Ki). For this purpose, the structure 22, 42 has different functional blocks, the unit 22 being for example an NFC (for Near Field Communication) router and the unit 42 being an associated antenna. The structures 20, 40 of the telephone 1 and 22, 42 of the block 2 must be compatible in their protocols, in order to allow the telephone 1 and the mobile 2 to communicate in a contactless mode. Mobile 2 also includes a contactless protocol conversion block 62, for example ISO 14443 to a protocol conventionally used in mobile phones, for example ISO 7816 and vice versa. An example of this type of block 62 is also described in application FR 2 822 272 of 13/03/01. The mobile 2 also comprises, as seen above, a block 32 containing a set of access keys to the telephone network (IMSI / Ki) of the user of the invention. In a first preferred variant of the invention, this block 32 is a USIM card reader in which such a card is inserted, provided for example by the telephone operator chosen by the user of the invention. The card complies with the standards as defined for example in the 3GPP standards for GSM, EDGE, 3G or LIE protocols. According to another variant, the block 32 is a fixed secure module (welded for example, or an integral part of the mobile 2) in which the authorization data for access to the telephone network have been inserted beforehand.

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The block 32 is then linked to the block 22 via a link of the type for example ISO 7816 and allows the transfer of the access authorization data to the telephone network via the block 22, 42 to the telephone 1.

Referring to Figure 2, there are presented steps in a method according to one embodiment. In this embodiment, a mobile 2 is approached from a telephone provided with the contactless functionality 1. In a first step, step 1, said telephone detects that the mobile is approaching and accordingly it goes into the configuration where block 30 is disabled. In one variant, the block 30 is not deactivated and it is used in the following steps, for the validation of the parameters sent by the mobile 2.

In step 2, the mobile 2 and the telephone 1 exchange information in order to establish a close communication without contact, preferably of the NFC type in our example. The phone then verifies in a variant that this mobile 2, which he has now received the identifier, via this link without contact, is allowed to work with him as to the invention. In a third security step, step 3, optional, the phone 1 displays a message asking the user of the invention to enter his security code on said phone, for example by means of a keypad or on a touchscreen. The phone then verifies that this security code is valid (step 4) and it can also verify in a second time that this security code is correctly associated with the mobile which it has just received the identifier. In another additional step of the method, step 5, optional, it is requested the entry on the phone 1 of an application code dedicated to the use of the invention, to verify (step 6) that the phone holder to contactless feature accepts the use of its B10265 - 09-RO-289

2. In the event that this code is requested but misinformed (for example after 3 unsuccessful attempts) or not provided, the telephone use is then denied to the mobile carrier according to the method of the mobile phone. the invention. During each verification, in the event of a negative response to the security test, the transaction is stopped (STOP step) and the contactless link between the mobile 2 and the telephone 1 is cut off, generally at the initiative of the telephone (1) .

Indeed it is, in a preferred embodiment, the same phone 1 that performs security testing and decides to stop the transaction in progress according to the invention. The telephone 1 is based in a preferred variant on its block 30 to perform the checks (for example using STK command for Sim Tool Kit or via a JavaCard interface) but it can also perform the checks using its processor (s) and memory blocks. However, the mobile 2 may also, in a variant, perform an optional step 7, in which it asks the phone 1 to send him his own identifier for this application related to the invention, so that said mobile 2 verifies that the phone 1 is in line with his expectations and is not potentially a malicious phone. The identifier of the telephone 1 for this application related to the invention may be an item stored in one of the memories of the telephone or a code entered via the human machine interface of the telephone by the holder of the telephone 1. According to the result of the test ( step 8), in case of failure, the transaction is stopped (STOP step) and the contactless link between the mobile 2 and the phone 1 is cut, this time at the initiative of the mobile 2. In a step 9 when all the optional controls have been successfully completed, the telephone disconnects the block 30 in a hardware (for example using dedicated switches) or logic. This disconnection allows the B10265 - 09-RO-289

13 telephone 1 to operate in a preferred mode with a single functional block 32 remote in the mobile 2, instead of block 30. The set of access authorization keys to the telephone network used is then that of the mobile 2, thus allowing the user to make his telephone call or his data exchange using his own data and not using the access authorization information to the telephone network usually used without the invention.

Once exchange or data exchange or telephone conversation for example made according to the invention, in a step 10, the logical link between the mobile 2 and the phone 1 is broken by the contactless phone. The invention has been described and illustrated in the present detailed description and in the figures. The present invention is not limited to the embodiments presented. Other variants and embodiments may be deduced and implemented by the person skilled in the art upon reading the present description and the appended figures.

In the example as previously illustrated, the operations related to the man-machine interface are preferably performed on the phone 1 and not on the mobile 2 because the example as illustrated is based more particularly on the second variant, in which the call process relies on the functional blocks of the telephone 1, the set of telephone network access authorization keys 3 used being that of the mobile telephone 2. But this is not mandatory, especially according to the first variant of the invention, in which the telephone 1 provided with the contactless functionality provides the energy required for the telephone call to the mobile telephone 2. According to this first variant, the operations related to the human machine interface can then preferably be performed on the mobile phone 2, thus allowing the user to keep his habits on his own B10265 - 09-R O-289

14 mobile 2. But the operations related to the human machine interface can also be performed on the single phone 1 or on each of the two elements, mobile 2 and / or telephone 1.

All these embodiments offer the advantages of not then requiring delicate manipulations, handling of batteries and / or USIM card for example, these manipulations requiring a certain skill, a habit, see a know-how, while allowing make phone calls even when the battery of your own phone is discharged. Thanks to the invention, the manipulations are reduced to the mere approach of a phone by another mobile, and in a simplified mode of use, no manipulation other than the seizure for example of a phone number of the person to contact is necessary, making the system very easy to use and very user-friendly. The calls made via the invention are made through the subscription or the prepaid account of the person whose mobile has a discharged battery, which ensures great security for the person lending his phone. This solution according to the invention also provides ease of use for the person whose mobile has a discharged battery, and ensures that it will be billed as usual.

In the claims, the term "include" does not exclude other elements or other steps. The indefinite article "a" does not exclude the plural. A single processor or several other units may be used to implement the invention. The various features presented and / or claimed can be advantageously combined. Their presence in the description or in different dependent claims does not exclude this possibility. The reference signs can not be understood as limiting the scope of the invention.

Claims (12)

REVENDICATIONS1. Telephone call method in which a telephone mobile (2) comprising a power supply unit (12), an electromagnetic transponder and a set of authorization keys (32) for access to a telephone network (3) is approached a telephone (1) with contactless functionality. 2. Method according to the preceding claim, wherein the communication between said telephone (1) and said telephone mobile (2) is of the contactless type. 3. Method according to one of the preceding claims, wherein the call method is based on the functional blocks of the telephone (1), the set of authorization keys (32) for access to a used telephone network being that of the mobile phone (2). 4. Method according to one of the preceding claims, wherein the energy required for the telephone call is provided by the telephone (1) to said mobile (2). 5. Method according to one of claims 1 to 3, wherein the set of authorization keys (32) for access to a telephone network (3) is transferred from the mobile (2) to the telephone (1). 6. Method according to one of the preceding claims, wherein the distance between the phone and the mobile is less than 10 cm. 7. Method according to one of the preceding claims, 25 wherein the transponder is of the NFC (Near Field Communication) type. 8. Method according to one of the preceding claims, wherein the mobile (2) and the telephone (1) do not belong to the same individual. 30 9. Method according to one of the preceding claims, wherein the telephone network (3) is a cellular network type EDGE or 3G or LTE. 10. Method according to one of the preceding claims, wherein the phone (1) has a set of keys 15B10265 - 09-RO-289 16 authorization different from that contained in the mobile phone (2). 11. A computer program comprising instructions for implementing a method according to one of the preceding claims when the program is executed by the telephone (1) and the mobile (2). 12. A telephone call system comprising: - a mobile comprising a power supply unit (12), an electromagnetic transponder and a set of authorization keys (32) for access to a telephone network (3), - a telephone (1) with contactless functionality. 15. Telephone call system according to the preceding claim, wherein the phone provided with the contactless functionality provides the energy required for the telephone call. 16. Telephone call system according to one of claims 12 or 13, wherein the call method is based on the functional blocks of the telephone (1), the set of authorization keys (32) access the telephone network (3) used being that of the mobile telephone (2). 17. Telephone call system according to one of claims 12 to 14, wherein the communication between said telephone (1) and said mobile phone (2) is of the contactless type. 18. Telephone call system according to the preceding claim, wherein the communication between said telephone (1) and said mobile phone (2) is of the NFC type.