Source: https://patents.google.com/patent/US6643523B2/en
Timestamp: 2020-01-29 20:29:55
Document Index: 54332118

Matched Legal Cases: ['art 41', 'arts 42', 'arts 42', 'art 41', 'art 42', 'art 42', 'art 41', 'arts 42', 'art 42', 'art 41']

US6643523B2 - Alternative routing system for mobile telephone calls - Google Patents
US6643523B2
US6643523B2 US09/043,408 US4340898A US6643523B2 US 6643523 B2 US6643523 B2 US 6643523B2 US 4340898 A US4340898 A US 4340898A US 6643523 B2 US6643523 B2 US 6643523B2
US09/043,408
US20030114186A1 (en
1996-03-26 Priority to EP96302059 priority Critical
1996-03-26 Priority to GBGB9606296.3A priority patent/GB9606296D0/en
1996-03-26 Priority to EP96302059.9 priority
1996-03-26 Priority to GB9606296 priority
1996-03-26 Priority to EP96302059 priority
1996-03-26 Priority to GB9606296.3 priority
1997-02-27 Priority to PCT/GB1997/000559 priority patent/WO1997036442A1/en
1997-02-27 Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
1998-03-18 Assigned to BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY reassignment BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOETZ, IAN
2003-06-19 Publication of US20030114186A1 publication Critical patent/US20030114186A1/en
2003-11-04 Publication of US6643523B2 publication Critical patent/US6643523B2/en
2017-07-19 Adjusted expiration legal-status Critical
230000001413 cellular Effects 0 abstract claims description 110
Referring to FIG. 6, an interface system 40 comprises a central part 41 and eight remote parts 42 a-42 h. The remote parts 42 a-42 h are each connected to the central part 41 by respective transmission lines 43 a-43 h.
Referring to FIG. 7, a remote part 42 a comprises a baseband data transceiver 44, a power supply unit 45 connected to a mains electricity supply 19, and a plug 46. The plug 46 has five contacts 46 a-e which correspond to contacts 7 a-7 e of the socket 7 of the cellular telephone 1 (FIG. 1) and have similar functions to the contacts 16 a-16 e in the socket of the interface unit 16 previously described with reference to FIG. 2. The first contact 46 a of the plug 46 is coupled to a data input terminal of the transceiver 44 and the second contact of the plug 46 is coupled to a data output terminal of the transceiver 44. The third contact 46 c and fifth contact 46 e of the plug 46 are coupled to the +V output of the power supply unit 45. The fourth contact 46 d of the plug 46 is coupled to the remote part's OV supply wiring. The +V output of power supply unit 45 is also coupled to +V input terminal of the transceiver 44. The transceiver 44 is also coupled to the transmission line 43 a between the remote part 42 a and the central part 41. Remote parts 42 b-42 h have the same construction as remote part 42 a.
Referring to FIG. 8, the central part 41 comprises a control circuit 47, a user input unit 48, a 9-to-1 multiplexer 49 and a modem 50. The user input unit 48 is coupled to the control circuit 47 and enables a user to program the interface system with the ISDN number of a BTS 21. The user input unit 48 includes a display on which is displayed status information for the interface system.
a system of cells, each cell comprising a radio base station, and
a cellular telephone call switching system for routing calls to radio base stations, and, thus, to mobile telephones in radio communication with the radio base stations,
wherein an additional communication path between the mobile telephone and the switching system is provided, the additional communication path including
interface means to provide a switched connection between the mobile telephone and the cellular telephone call switching system so as to by-pass the radio frequency circuitry and antenna of the mobile telephone,
the additional communication path having a dedicated channel in the switching system, not associated with a radio frequency channel, for connection of calls to and from a mobile telephone,
wherein the interface means comprises a modem that provides a communications connection to the mobile telephone for baseband speech and control data signals, and
wherein the communications path comprises a switched network.
interface means to provide a switched connection between the mobile telephone and the cellular telephone call switching system so as to bypass the radio frequency circuitry and antenna of the mobile telephone,
wherein the communications path comprises a fixed point-to-point signal path.
3. A cellular telephone system comprising:
an additional communication path independent of a system of cells of the cellular telephone system, between a mobile telephone and a cellular telephone call-switching system,
the additional communication path being other than RF, and including an interface means for providing a communications connection between a mobile telephone and the cellular telephone call switching system so as to by-pass the telephone's radio antenna, and
wherein the interface means comprises a modem and provides a connection to the mobile telephone for baseband speech and control data signals, the communications path comprises a switched network, and the interface means is arranged for providing communications connections for a plurality of mobile telephones to the call switching system and the bandwith of the communications path is sufficient for a plurality of simultaneous calls.
the additional communication path being other than RF, and including an interface means for providing a communications connection between a mobile telephone and the cellular telephone call switching system via a radio base station so as to by-pass the telephone's radio antenna,
wherein the interface means includes a modem that provides a communications connection with the radio frequency circuitry of a mobile telephone for radio frequency speech and data signals and provides a connection to the transmission line from the radio frequency circuitry of a plurality of mobile telephones, and
wherein the interface means is programmed to contact the radio base station when one of the mobile telephones is connected to the interface means, such that all calls to and from the mobile telephone are routed via the additional communication path.
5. An interface apparatus for providing a communications connection between a mobile telephone and a cellular telephone call-switching system so as to by-pass the telephone's radio antenna, the apparatus comprising:
a first connect for exchanging speech and data signals with a cellular mobile telephone,
a second connector for connecting the apparatus to a transmission line for communicating with the cellular telephone call switching system,
a modem for exchanging said speech and data signals via the second connector,
one or more further connectors for exchanging speech and data signals with further cellular mobile telephones, and
a multiplexer for multiplexing signals from the first and further connectors,
the modem is arranged for transmitting the output of the multiplexer to the transmission line, and
the first connector is arranged to exchange baseband signals with the mobile telephone.
6. An interface apparatus as in claim 5, wherein the first connector is arranged for exchanging speech and data signals via an optical or ultrasonic carrier.
control means and dialing means,
wherein the control means is responsive to cellular telephone data signals from the first connector to cause the dialing means to output telephone or ISDN dialing signals via the second connector.
8. An interface apparatus as in claim 5, wherein the first connector communicates with the mobile telephone via an electrical connection.
power supply means for supplying electrical power to the mobile telephone through the first connector.
10. A mobile telephone for a cellular telephone system including:
processing circuitry capable of sending and receiving baseband speech and data signals,
an externally accessible connector for connecting the processing circuitry to the cellular telephone system through a communication path that is independent of the cellular telephone system's system of cells and that is other than RF, the externally accessible connector being coupled to the processing circuitry to exchange therewith baseband speech and data signals sent or received via the independent communication path,
radio frequency transceiver circuitry for coupling to the processing circuitry to exchange baseband speech and data signals therewith, the processing circuitry including means for detecting whether the externally accessible connector is in communication with a complementary connector connected to the independent communication path,
switch means under the control of the processing circuitry to disconnect the processing circuitry from the transceiver circuitry when the externally accessible connector is so connected, wherein the externally accessible connector communicates with the mobile telephone using an electrical connection,
a power supply connection for supplying electrical power to the mobile telephone through the electrical connection, and
radio frequency circuitry for transmitting and receiving speech and data signals, and
wherein the switching means is responsive to a signal applied to disable the connector to the radio frequency circuitry.
11. A method of connecting a mobile telephone to the call-switching system of a cellular telephone system comprising the steps of:
establishing an additional communication path, independent of the system of cells of the cellular telephone system, between the mobile telephone and a fixed part of the cellular telephone system, the additional communication path being other than RF,
connecting the mobile telephone with an interface means, the interface means calling the call-switching system of the cellular telephone system via the communications path, and
allocating, when the interface means calls the call-switching system, a dedicated channel for the mobile telephone on the switched network between the mobile telephone and the fixed part of the cellular radio system, such that all calls to and from the mobile telephone are routed via the dedicated channel,
wherein the communications path comprises a switched network, and is a channel on an existing high bandwidth switched connection.
12. A method of connecting a mobile telephone to the call-switching system of a cellular radio system comprising the step of:
establishing an additional communication path, independent of the system of cells of the cellular telephone system, between the mobile telephone and a fixed part of the cellular radio system,
putting the mobile telephone in communication with an interface means, the interface means being connected to the call-switching system cellular telephone system by the communications path, wherein the communications path comprises a switched network, and
allocating a path on the switched network between the mobile telephone and the fixed part of the cellular radio system, wherein the communications path is a channel on an existing high bandwidth switched connection, and
wherein when a call ends, the switched connection is released only if both:
13. A method of connecting a mobile telephone to the telephone call-switching system of a cellular telephone system, the cellular telephone system further comprising a system of cells, each cell comprising a radio base system, the cellular telephone call switching system routing calls to radio base stations and, thus, to mobile telephones in radio communication with the radio base stations, the method comprising the steps of:
establishing an additional communication path between the mobile telephone and the telephone call switching system, the additional communication path being other than RF;
establishing in the switching system for the additional communication path a dedicated channel, not associated with a radio frequency channel, for connecting calls to and from the mobile phone,
the additional communication path including an interface means for providing a switched connection between the mobile telephone and the cellular telephone call switching system, thereby by-passing the radio frequency circuitry and antenna of the mobile telephone, and
14. A method of connecting a mobile telephone to the call-switching system of a cellular radio system comprising the steps of:
establishing an additional communication path, independent of the system of cells of the cellular radio system, between the mobile telephone and a cellular radio base transceiver site of the cellular radio system,
putting the mobile telephone in communication with an interface means connectable to the mobile telephone, the interface means being connected to the call-switching system cellular telephone system via the cellular radio base transceiver site by the communications path so as to by pass the radio frequency circuitry and antenna of the mobile telephone and the conventional wireless link to the cellular telephone system,
the base transceiver site includes channel allocation means for allocating mobile telephones to channels in order to set up calls to and from said mobile telephones,
when a call is set up to a mobile telephone by way of the system of cells, a channel is allocated having an associated radio frequency channel, selected from a plurality of channels allocated to the cell,
when a call is set up to a mobile telephone by way of the additional communication path, the call is allocated to a dedicated channel not associated with such a radio frequency channel, and
the interface means is programmed to contact the cellular radio base transceiver site when one of the mobile telephones is connected to the interface means, such that all calls to and from the mobile telephone are routed via the additional communication path.
15. A method of connecting a mobile telephone to the call-switching system of a cellular radio system comprising the steps of:
establishing an additional communication path, independent of the system of cells of the cellular telephone system, between the mobile telephone and a fixed part of the cellular radio system, the additional communication path being other than RF, and
putting the mobile telephone in communication with an interface means, the interface means being connected to the call-switching cellular telephone system by the communications path and including a modem that provides a communications connection with the mobile telephone for radio frequency speech and data signals,
wherein communication between the mobile telephone and the interface means disables the radio receiver functions of the mobile telephone, and
wherein the interface means is programmed to contact the fixed part of the cellular radio system when the mobile telephone is connected to the interface means, such that all calls to and from the mobile telephone are routed via the additional communication path.
16. A cellular telephone system comprising:
a system of cells, each cell comprising a radio base station,
a cellular telephone call switching system for routing calls to radio base stations, and, thus, to mobile telephones in radio communications with the radio base station, and
an additional communication path connectable between a mobile telephone and the cellular telephone call switching system, the additional communication path including
an interface apparatus connectable to one of said mobile telephones to provide a switched connection between the mobile telephone and the cellular telephone call switching system via a radio base station so as to bypass the radio frequency circuitry and antenna of the mobile telephone and the conventional wireless link to the cellular telephone system,
wherein said interface apparatus is programmed to contact said radio base station when said one of said mobile telephones is connected to said interface apparatus, such that all calls to and from said one mobile telephone are routed via said additional communication path, and
wherein the additional communication path comprises a dedicated channel in the cellular telephone call switching system not associated with a radio frequency channel, for connection of calls to and from mobile telephones.
17. A cellular telephone system as in claim 16, wherein the interface means communicates with the mobile telephone via an optical or ultrasonic communications link.
a point-to-point microwave link and
transposer means for transposing the signals on the transmission line to the operating band of the microwave link, and for transposing signals received from the microwave link to the operating band of the mobile telephone and applying them to the transmission line.
24. A method of connecting a mobile telephone to the telephone call-switching system of a cellular telephone system, the cellular telephone system further comprising a system of cells, each cell comprising a radio base station, the cellular telephone call switching system routing calls to radio base stations and, thus, to mobile telephones in radio communication with the radio base stations, the method comprising the steps of:
establishing an additional communication path between the mobile telephone and the cellular telephone call switching system;
establishing in the cellular telephone call switching system for the additional communication path a dedicated channel, not associated with a radio frequency channel, for connecting calls to and from the mobile phone,
the additional communication path including an interface apparatus connectable to the mobile telephone for providing a switched connection between the mobile telephone and the cellular telephone call switching system via a radio base station, thereby bypassing the radio frequency circuitry and antenna of the mobile telephone and the conventional wireless link to the cellular telephone system
wherein the interface apparatus is programmed to contact the radio base station when the mobile telephone is connected to the interface apparatus, such that all calls to and from the mobile telephone are routed via the additional communication path.
25. A method as in claim 24, wherein communication between the mobile telephone and the interface means is via an electrical connection.
allocating a path on the switched network between the mobile telephone and the fixed part of the cellular radio system.
28. A method as in claim 27, wherein a call is set up by setting up a switched connection.
US09/043,408 1996-03-26 1997-02-27 Alternative routing system for mobile telephone calls Expired - Lifetime US6643523B2 (en)
GBGB9606296.3A GB9606296D0 (en) 1996-03-26 1996-03-26 Alternative routing system for mobile telephone calls
US20030114186A1 US20030114186A1 (en) 2003-06-19
US6643523B2 true US6643523B2 (en) 2003-11-04
US09/043,408 Expired - Lifetime US6643523B2 (en) 1996-03-26 1997-02-27 Alternative routing system for mobile telephone calls
AU (1) AU722727B2 (en)
DE (2) DE69730493T2 (en)
NO (1) NO984465D0 (en)
NZ (1) NZ331102A (en)
WO2006019601A1 (en) * 2004-08-06 2006-02-23 Motorola Inc. Mobile voice mail screening method
DE102007025515B4 (en) * 2007-05-31 2010-04-15 Vodafone Holding Gmbh Device for activating and deactivating network interfaces
JP2003509950A (en) 1999-09-14 2003-03-11 ストラトス グローバル リミテッド Call diversion system
CA2190630A1 (en) 1994-06-21 1995-12-28 Nigel Lobley Call setup and service invocation in telecommunications networks
1997-02-27 CN CN97193198A patent/CN1214180A/en not_active IP Right Cessation
1997-02-27 DE DE69730493T patent/DE69730493T2/en not_active Expired - Lifetime
1997-02-27 KR KR1019980707737A patent/KR20000005099A/en not_active Application Discontinuation
1997-02-27 JP JP9534099A patent/JP2000507417A/en active Pending
1997-02-27 DE DE69730493A patent/DE69730493D1/en not_active Expired - Lifetime
1997-02-27 AU AU22229/97A patent/AU722727B2/en not_active Ceased
1997-02-27 NZ NZ331102A patent/NZ331102A/en unknown
1997-02-27 EP EP97905299A patent/EP0890277B1/en not_active Expired - Lifetime
1997-02-27 US US09/043,408 patent/US6643523B2/en not_active Expired - Lifetime
1997-02-27 WO PCT/GB1997/000559 patent/WO1997036442A1/en active IP Right Grant
1998-09-25 NO NO984465A patent/NO984465D0/en not_active Application Discontinuation
IBM Technical Disclosure Bulletin, vol 38, No. 10, Oct. 1, 1995, Armonk, NY, US, pp. 451-452, "Modem Signal Path Control".
IBM Technical Disclosure Bulletin, vol. 38, No. 6, Jun. 1995, Armonk, NY, US, pp. 491-439, "Method for Audio Multiplexing and Control".
KR100828210B1 (en) 2004-08-06 2008-05-07 모토로라 인코포레이티드 Mobile voice mail screening method
AU2005275424B2 (en) * 2004-08-06 2008-06-05 Google Technology Holdings LLC Mobile voice mail screening method
KR20000005099A (en) 2000-01-25
EP0890277B1 (en) 2004-09-01
AU2222997A (en) 1997-10-17
JP2000507417A (en) 2000-06-13
AU722727B2 (en) 2000-08-10
NO984465L (en) 1998-09-25
DE69730493D1 (en) 2004-10-07
NZ331102A (en) 2000-05-26
EP0890277A1 (en) 1999-01-13
US20030114186A1 (en) 2003-06-19
WO1997036442A1 (en) 1997-10-02
NO984465D0 (en) 1998-09-25
CN1214180A (en) 1999-04-14
DE69730493T2 (en) 2005-09-15