FR2824225A1 - Telephone switching system forms interface via public telephone dial-up connection to establish telephone connection to base device to transfer switching station performance data - Google Patents

Abstract

The system (1) has an interface (3,9) for connecting a mobile radio telephone (5) base station (4,10), whereby the interface is formed via a public telephone dial-up connection (7) to establish a telephone connection to the base device. The interface is formed to transfer a performance characteristic off the switching station via the telephone connection. Independent claims are also included for the following: a base station for a radio telephone and a method of transmitting a performance characteristic for a switching station via a telephone connection.

Description

data transmission line (54).

  The present invention relates to a central for tele-

  phones including an interface to braneher a base station of a

  mobile phone, the interface being carried out to build a telephone link

  telephone with the basic unit through a telephone link

  s public telephones, the interface being carried out to transmit earaeté-

  power of the center by telephone link.

  The invention also relates to a base station for a mobile telephone comprising a first interface for building a telephone connection with a central, a second interface for exchanging data with a mobile telephone, the first interface making it possible to extract a power characteristic. from the central

  telephone link and base station data protocol

  both the power characteristic.

  Finally, the invention provides a transmission method

  of a power characteristic of a power plant by a telephone link

  from the public network to a mobile phone that can be connected to the

eentrale by a base station.

  In modern telecommunication installations, a power station is connected to a large number of different telephones and termi

  nal. For example, an eentrale can be connected to a telephone, a station

  basics of a mobile phone, a data network and a computer.

  According to the document DE 19 909 956 A1, we know a cent

  telecommunication link and a telecommunication system according to which the telecommunication center has an interface for receiving control information. The control information relates to the construction of communications between the terminals and a data processing installation. The interface is designed to transmit connection data relating to the construction and deconstruction and / or the state of the connections between at least two terminals and the data processing installation. This allows the use of all

  comfort of a modern power plant through a processing facility

  data processing, in particular a workstation computer.

  In addition, according to DE 19 845 038 A1, we know

  a method for wiping out communication terminals on an een-

  trale by a communication network, according to which the communication terminals are connected by a transmission unit and a central by a connection unit to a packet oriented communication network. To transmit data between the control panel and

  communication terminals there is a data format to be

  substructure elements. For data transmission over the communication network, the data to be transmitted is entered in the form

  s of substructure elements towards the emitting side in the form of pa-

  data quets. On the reception side, the substructure elements are extracted from the received data packets. This allows voice data to be transmitted without loss of voice quality via a

  network of computers oriented according to the Internet protocol.

  o It is also known to connect mobile telephones to a central station from a base station. This base station is connected by a wire link to a special interface and to the central unit. As the wireless terminals do not have a fixed association, linked by wire to a call number and can move freely, special measures must be taken to group the call number, the position of the mobile phone and his address. It is known that a mobile phone signals to a station

  base station as soon as it arrives in the transmitting area of the base station.

  The base station signals the new mobile phone registered in this way to the central unit. The control center then knows by which base station you can reach this mobile phone. Thus, a user equipped with a mobile telephone can alternate between the transmission zones of different radio stations.

  base and nevertheless it can be reached through the central.

  The path between the base station and the radio telephone is of different dimensions depending on the space conditions and the buildings; this path generally represents between 20 and 100 meters. The advantageous functions with the power characteristics of the power plant can, however, be used only in a limited environment of the power plant because the power plant is connected to the base station by a link

  by wire to transmit the power characteristics.

  The present invention aims to develop a power station, a base station and a method for transmitting power characteristics of a power station and allowing flexible mounting of the base station. To this end, the invention relates to a central station of the challenge type above, characterized in that the base station picks up a mobile telephone entering the transmission area of the base station, and the base station transmits the penetration of the new mobile phone through the interface and a selected link through the public network to the central office. The invention also relates to a base station of the type defined above, characterized in that the base station grasps a mobile telephone which enters its transmission area, and the base station transmits the penetration of the new mobile telephone by the first in

  s terface and a selection link via the public network to the central office.

  Finally, the invention relates to a method of the type defined above, characterized in that the base station picks up a mobile telephone entering its transmitting area, the base station transmits the penetration of the new mobile telephone by the first interface and a selection link via the public network to the central, and the power characteristic is inserted into a data frame of a communication protocol.

  public network data and is transmitted over the selected link.

  An important advantage of the central unit according to the invention is that it comprises an interface for constructing a telephone link s to the basic device and this interface makes it possible to transmit at least one power characteristic of the central unit via a telephone link . An important advantage of the base station according to the invention is that it has an interface with which a power characteristic of the central unit is entered from the data protocol of the telephone link and the base station can continue the

  processing of the power characteristic.

  There is thus an important advantage in the case of the central defined above, of the base station and of the method, in that the power characteristics of the central are transmitted by a telephone selection link to a mobile telephone. It is thus possible to use the power characteristics of the central unit also with a mobile telephone, the base station of which is connected to the central unit by a link.

telephone selection sound.

  In a particularly advantageous manner, the power characteristic of the power station is transmitted and / or exchanged by a protocol

ISDN data.

  According to a preferred embodiment, the transmission of the power characteristic takes place in the free range of channel D of the 3s ISDN data protocol. According to another advantageous embodiment, the power characteristic is transmitted in an additional free byte of the D channel. These embodiments have the advantage of using the already existing transmission capacities of the ISDN data protocol to transmit a power characteristic. Thus, transmission of the power characteristic is possible to a

  base station connected to the selection link without having to modify the pro-

  existing data tocol. This embodiment is simple to carry out and

  s this achievement is economical.

  According to a preferred embodiment, in channel B

  of the ISDN protocol we have a transmission capacity for trans-

  put the useful data by channel B by compressing them. Of this ma-

  nier we have a transmission capacity without having to perform

  0 basic modifications in the data protocol. The ability to trans-

  channel B free mission is used to transmit and / or exchange a

  power characteristic of the power plant.

  The base station according to the invention is advantageously made to use the procedures described above for transmitting

  i5 power characteristics, to enter a power characteristic

  sance and treat it. A simple development of the characteristic of can-

  sance consists for example of transmitting command data

  and / or useful from the power characteristic to the mobile phone.

  A particularly advantageous embodiment of the

  base station is realized in that the station captures a new tele-

  mobile phone arriving in its transmission area and transmits the mobile phone code number to the central. The plant thus knows

  the place in the space visited by the mobile phone. If a telephone link

  call to the mobile phone is requested from the central, this was 2s blit a telephone link by a selection link with the station

  base to the mobile phone. This provides a great deal of support.

  mobile phone use even at a great distance from

the power plant.

  In the same way, according to a preferred embodiment, the base station signals that a mobile telephone has left its transmission area. So the central immediately knows that a mobile phone

  can no longer be reached through this base station.

  The present invention will be described below in more detail with the aid of the accompanying drawings in which: - Figure 1 shows a telecommunications system with a central and a base station for mobile telephones which can be connected by a link for selection to the central unit, - Figure 2 shows the construction of the switching function of the central unit, - Figure 3 is a flow diagram shown schematically to transmit a power characteristic of a central unit by a

  s telephone selection link to a mobile phone.

  FIG. 1 shows a telecommunications system comprising a transmission center 1 connected by lines to several telephones 2. The telephones 2 are fixed telephones connected by wires which

  may use the power characteristics of the plant.

  The central unit 2 is connected by a first interface 3, by a line 1 to a first base station 4. The base station 4 is a

  base station for radiotelephones or cellphones 5.

  Data exchange between the first base station 4 and the telephones

  mobiles 5 is done according to known data transmission methods.

  s For example, data exchange is done according to the CDMA standard. Between the first base station and the central unit 1, an ISDN data protocol has been installed which ensures the exchange of data between the first base station 4 and the central unit 1. This is for example an SO connection which uses an extended ISDN data protocol. The extended data protocol guarantees the transfer of the power characteristics of the power plant 1. The extended data protocol defines, for example, methods for counting or counting down mobile telephones in a transmission zone of the first base station 4 A mobile telephone, which arrives newly in the transmission area of the first base station 2s 4, will be signaled with the reference of the mobile telephone to central 1. Similarly, the first base station 4 indicates to the central 1 than a TV

  phone mobile has left the transmission area of the first base station 4.

  The control unit 1 thus knows the mobile telephones and the base stations by which they can be reached. Usually there is not just a single first base station 4 connected by a network line to the cen

  trale 1 but there are a large number of such first base stations 4.

  In addition, the extended protocol allows the exchange of power characteristics of control unit 1 which exceed the power characteristics of a selected telephone link. This involves, for example, the provision of caller data, the provision of a central memory for telephone numbers installed in the transmission center 1 and provision of all connected telephones to power plant 1. Other power characteristics are as follows:

  "indication of other interesting power characteristics.

  The central office 1 further comprising a second interface 6 by which the central office 1 can be connected by a selected link to the public telephone network 7 realizes a link by a line to another

  telephone 8 connected to a line. For example, one of the 2 telephones

  hates a telephonic communication with another telephone 8 by the central 1. The central 1 then builds a telephone link by the public network 7 to the second telephone 8. At the level of the public network o 7 there is also an ISDN data protocol establishing the data transmission link and for exchanging useful data; however, the ISDN data protocol in this section has fewer functions and does not support all of the power characteristics of panel 1. Thus, between panel 1 and second telephone 8, only the data supplied to from the public network 7 and / or exchange functions and / or use. For example, it is not possible to perform a mobile phone roaming procedure over the network

public 7.

  The central unit 1 comprises a third interface 9 which is also connected to the public network 7 by a selected link and by a line. The public network 7 is connected to a second base station 10 by another line. The second base station 10 has other mobile telephones 5. The exchange of data between the second base station 10 and the other mobile telephones 5 is done by a known procedure of trans

2s data mission.

  The third interface 9 is designed so that a selected link can be built with the second base station 10 using the public network 7 and so that this link can be maintained and that, in addition, other power characteristics of the power station 1 then feels to be exchanged with the second base station 10 through the public network. In a simpler embodiment, the third interface 9 is only able to transmit the power characteristics

  from control unit 1 to second base station 10.

  The third interface 9 adds useful data and / or control data of at least one power characteristic of the central unit 1 in the data protocol by which the data is transmitted to the public network 7. The second base station 10 is carried out in a corresponding manner to enter and process the useful data and / or the control data of at least one power characteristic of the central unit 1 in the data protocol of the public network 7. Advantageously, the second base station 10 transmits the power characteristic of control unit 1 supplied by the public network to the telephones

  s mobile 5. For this, the second base station 10 comprises a qua-

  third interface 11 for exchanging data with the public network 7. The second base station 10 has a fifth interface 12 by which data is exchanged with mobile telephones 5. As exchanged data, this is for example useful data and / or donation

o order data.

  According to a first preferred embodiment, the third

  nth interface 9 inserts useful and / or command data from a

  power plant 1 characteristic in the free range of channel D of the ISDN data protocol. The ISDN data protocol used in the public network 7 has a free transmission capacity of 8 kbits which are not used in the public network. The fourth interface 11 of the second database 10 is also made to separate by filtering useful and / or control data of a power characteristic of the power station from the D channel of the ISDN data protocol

and process this data.

  In another embodiment of the invention, the third

  sth interface 9 is made so that it introduces useful and / or control data for a power characteristic of the central unit in an additional free byte of the D channel of the ISDN data protocol and can extract an additional byte from the D channel . The fourth

  interface 11 of the second base station 10 is implemented in a cor-

  corresponding to filter the power characteristic at

  start from the extra byte and deal with that characteristic.

  Another preferred embodiment of the invention

  consists in transmitting useful data and / or

  control of a power characteristic of the control panel by channel B of the ISDN data protocol. For this, the useful data of the telephone link to be transmitted by the channel B must be compressed to have transmission capacities in the channel B. For this embodiment, the third interface 9 is designed so that the data channels of channel B. such as, for example, voice data, video data, etc., are compressed by the third interface 9 and then exchanged by channel B. At the same time the third interface 9 is able to insert data useful and / or for controlling the power characteristics of power station 1 in channel B or extracting them from channel B. The third interface 9 is also able to extract compressed data from channel B, in order to decompress and provide them at the central. The power plant

  s exchange decompressed data with telephone 2 or with the first

  base station 4 by proceeding in an appropriate manner.

  In this embodiment of the invention, the second stage

  base 10 is designed to exchange compressed useful data from the telephone link via channel B. Compressed useful data,

  o transmitted in channel B for the telephone link, are decompressed

  led by the fourth interface 11 and transmitted to the second base station 10. Correspondingly, the useful data transmitted by the mobile telephones 5 are transmitted to the second base station 10 to be compressed by this second base station 10 and to be trans

  s put by the fourth interface 11 in the compressed state by channel B up to

than to the third interface 9.

  The second base station 10 is constructed so that the

  useful and / or control data to be transmitted in channel B and cor-

  corresponding to a power characteristic of the central unit can be o extracted from channel B and be processed. One form of treatment consists of

  example to transmit the useful and / or order data of a

  power characteristic from the power plant to mobile phones 5 to

  through the fifth interface 12 or to exchange with mobile phones

the 5.

  s A particularly interesting power characteristic is that of roaming. According to this characteristic, the second base station 10 transmits the characteristics of the mobile telephones 5 located in the transmission area of the second base station 10 to the central 1. Another particularly interesting power characteristic of the central 1 consists in making available a central memory of telephone numbers of the central office 1 via the second base station 10 to the mobile telephones 5. For this, the

  telephone numbers stored in the telephone number memory

  nics are transmitted by the second base station 10 to the telephones

  3s mobiles 5 which can use phone numbers for selection

  directly and display the telephone numbers preferably on the display of the mobile telephones 5. Correspondingly, the other power characteristics of the central unit can also be provided

  1 to mobile phones 5.

  FIG. 2 shows an advantageous embodiment of the control circuit of the central unit 1. In this embodiment, the

  s control unit 1 comprises in addition to the first interface 3, the second in-

  terface 6 and of the third interface 9, a first control unit 13 and a second control unit 14 connected by a data bus 15. The first control unit 13 provides the usual control functions for the central unit 1. The second unit 14 provides the

  o functions using which the power characteristics of the cent

  transmission date 1 are affected in the data protocol of the

  public bucket 7 or are extracted from the public network 7. The control data of the power characteristics of the power station 1 exchanged with the mobile telephones 5 are exploited by the second control unit 14 and implement appropriate functions. Thanks to the second control unit 14, the

  first control unit 13 and more rapid operation is permitted

pide of the control unit 1.

  The invention has been described above in the context of data transmission according to the ISDN data protocol; however,

  the invention is independent of the nature of the data exchange protocol

  born. For example, the power characteristics can be appropriately inserted in an XDSL data transmission such as for example ADSL. Data transmission by Internet protocol

  2s IP is also possible. Useful and / or order data

  power characteristics of plant 1 are also injected into

  the coaxial cable network of a cable television network.

  The indication of the power characteristics of the control unit 1 in the re-

  a household electric bucket is also possible because it is also suitable for broadband data transmission in the so-called packet switching process. It is also possible to have any combination of the types of transmission described and / or

transmission protocols.

  Preferably, the compression and decompression of the power characteristics can be done by the second unit

  command 14 so as to discharge the third interface 9. The third

  fifth interface 9 is preferably made to allow transmission

  Data transmission according to the normal ISDN data protocol of the public network. Building a data link between the central unit 1 and the second base station 10 can be initiated by the two devices and in the simplest case by building a selected link with the opposing part. In addition, the third interface 9 has several seconds

  s base stations 10 connected by corresponding selection lines.

  Functions such as roaming or hands-free mobile phones

  the are preferably set by the control unit 1.

  Figure 3 shows, using a schematic flowchart

  that simple, an example of transmission of power characteristics o from the power station 1 to the base station 1O. At program point 10, the second base station 10 recognizes a arriving mobile phone 5

  in the transmission area of the second base station 10. Then the tele-

  phone mobile 5 is registered in the second base station 10 at the point

  11. This recording corresponds to the sending by the tele-

  phone mobile 5 from its identity to the second base station 10. In addition, the data transmission is synchronized between the second base station.

  base 1O and the new mobile phone 5.

  Then the second base station 10 transmits, to the program point 12, the information indicating that the new mobile telephone 5 is in the transmission area of the second base station 10 as a power characteristic according to one of the procedures described above through the public network 7 to the central 1. At the next program point 13, the user of the new mobile telephone 5 actuates a call key to display the stored telephone numbers. This signal is: s transmitted to the second base station 1O at the program point 14. The second base station 1O then builds, at the program point 15, a selected telephone link through the public network 7 to the central 1. L 'information is thus transmitted to the central 1 which provides the telephone numbers recorded in the central memory of telephone numbers. Information is taken by the third interface 9 at point

  16 to be transmitted to control unit 1. Control unit 1 reads

  thereafter the telephone numbers stored in the central memory of the telephone numbers and supplies them to the third interface 9 at the program point 17. The third interface 9 transmits the telephone numbers 3s nes as power characteristics of the central according to one of the procedures described above to the second base station 10, at program point 18. For example, the telephone numbers are transmitted by the free range of channel D of the ISDN data protocol of the public network 7 to the second base station. base 10. The second base station 10 enters the telephone numbers of channel D at program point 19 and

  transmits them to the mobile phone 5.

  At the next program point 20, the mobile telephone 5, s selects the telephone number of the Tenovis Company on the display and activates the telephone number selection. The interrogation signal to build a telephone communication with the Tenovis Company is transmitted by a wireless link to program point 21 per second

base station 10.

  lO The second base station 10 transmits the request signal to build a telephone link by the selected link and the public network 7 at the program point 20 to the central 1. The central 1 then builds at the program point 23, for example by the third interface 9, a data link by the public network 7 with the Company

  lS Tenovis. At the same time, the control unit 1 provides other relevant information.

  surrounding the Tenovis Company on the mobile phone 7. This is for example

  information about the most important turnover or customers

  of the Tenovis Company, from central 1 which is extracted from a memory; this information is transmitted as characteristics

  o of power via the third interface 9 to the second base station 10.

  The second base station 10 transmits this information to the telephone

  mobile 5. This information is displayed on the display of the mobile phone.

  bile 5. The user of the mobile telephone 5 can prepare for the conversation.

  Telephone information with the Tenovis Company with other information. Voice and control data for the telephone link with the Company

  Tenovis are exchanged by the third interface 9 and the selection link

  tion with the second base station 10. In this embodiment, the

  information concerning the Tenovis Company is transmitted by the

  sth interface 9, preferably in channel B of the NSI data protocol of the public network. For this, the voice and useful data of the telephone link must be compressed by the third interface 9 and transmitted in compressed form by the channel B to be exchanged with the second base station 10. The second base station 10 extracts the data voice and useful compressed from the telephone link of channel ss B. decompresses the voice and useful data and sends this voice data

  and useful towards the mobile phone 5.

  Thus, by using the method according to the invention, it is possible at the same time to exchange, by the public network 7, useful and vocal data of a telephone communication and moreover of the power characteristics of the central unit 1, between the central unit 1 and the second station

base 10.

  The control unit is a private control unit preferably used in domestic or office applications. The mobile phone is

  preferably connected by the DECT data protocol to the base station.

Claims (9)

  1) Control unit (l) for telephones (2, 5) comprising an interface (3, 9) for connecting a base station (4, 10) of a mobile telephone (5), the interface (9) being produced in order to build a telephone link with the basic device (10) through a selection link for public telephones (7), the interface (9) being designed to transmit a characteristic of power of the central unit (l) via the telephone link (7), characterized in that the base station (l0) picks up a mobile telephone (5) entering the 0 transmission zone of the base station (l0), and the base station (10) transmits the penetration of the new mobile telephone (5) via the interface (9) and a selected link through the public network (7) to the central office (1). 2) Power plant according to claim 1, characterized in that   the interface (9) is designed to transmit and / or exchange the characteristic   than power by an ISDN data protocol.   3) Power plant according to claim 1, characterized in that   the interface (9) transmits useful data and / or   command of a power characteristic of the power plant (1) in the range   free of the D channel of the ISDN data protocol.   4) Control panel according to claim 1, characterized in that the interface (9) transmits useful data and / or control data of a power characteristic of the control panel (1) in an additional free byte of the D channel .) Control unit according to claim 1, characterized in that - the interface (9) compresses the useful data, 3s the interface transmits useful data compressed in a B channel of the ISDN data protocol and - the interface transmits a characteristic power of the central unit (l) in the free range of channel B.  6) Base station (10) for a mobile telephone (5) comprising a first interface (11) for building a telephone link with a central unit (1), a second interface (12) for exchanging data with a mobile telephone, the first interface (11) making it possible to extract a power characteristic of the central unit (1) from the data protocol of the telephone link (7) and the base station (10) processing the power characteristic, characterized in that the base station (10) grasps a mobile telephone (5) which enters its transmission zone, and   the base station (10) transmits the penetration of the new mo-   bile (5) via the first interface (11) and a selection link via the   public bucket (7) towards the central (1).   s 7) base station according to claim 6, characterized in that the base station (10) recognizes that a mobile telephone (5) leaves its transmitting area and the base station (10) recognizes the output of the telephone area mobile   o transmission and transmits it via the first interface and a selection link   tion through the network (7) to the central (1).   8) Base station according to claim 6, characterized in that the first interface (11) is made to filter a characteristic of   power of the central unit (1) of a range of channel D of the data protocol ISDN.   9) Base station according to claim 6, characterized in that the first interface (11) is designed to filter a power characteristic of the central unit (1) from the additional byte of channel D.) Base station according to claim 6, characterized in that the first interface (11) extracts the compressed useful data from the channel B of the ISDN data protocol, - the first interface (11) decompresses the compressed useful data, the second interface (12) transmits the useful data, the first interface determines a power characteristic of the power station from channel B of the ISDN data protocol,   the base station (10) processes the power characteristic.   11) Base station according to claim 6, characterized in that it (10) is designed to transmit the power characteristic to a mobile phone (5).   12) Method for transmitting a power characteristic of a central unit (1) by a public telephone line (7) to a mobile telephone which can be connected to the central unit (1) by a base station (10 ), S characterized in that - the base station (10) picks up a mobile telephone (5) entering its transmission area, - the base station (10) transmits the penetration of the new mobile telephone (5) by first interface (11) and a selection link via the public network (7) to the central office (1), and - the power characteristic is inserted into a data frame of a data protocol of the public network (7) and is transmitted by the selected link.   s 13) Method according to claim 12, characterized in that the power characteristic of the power plant is transmitted in a   free range of the D channel of an ISDN data protocol.   14) Method according to any one of claims 12 or 13,   characterized in that the power characteristic of the plant (1) is transmitted in a   additional free byte of the D channel of the ISDN data protocol.   s 15) Method according to claim 12, characterized in that - the useful data of the telephone link is compressed,   the compressed useful data are transmitted in a B channel of the prototype   ISDN data school, and the power characteristic of the control unit (1) is transmitted in the free range of channel B.