Integrated radio telecommunications network and method of interworking an ANSI-41 network and the general packet radio service (GPRS)
First Claim
1. An integrated radio telecommunications network which integrates an ANSI-41 circuit switched network and a General Packet Radio Service (GPRS) packet data network, said integrated radio telecommunications network comprising:
- a mobile switching center (MSC) in the ANSI-41 network that provides circuit switched services to a mobile station which operates in both the ANSI-41 network and the GPRS network;
a serving GPRS switching node (SGSN) in the GPRS network that provides packet switched services to the mobile station;
an interworking function that interfaces the MSC with the SGSN, said interworking function mapping circuit switched signaling utilized by the MSC into GPRS packet switched signaling utilized by the SGSN, and mapping GPRS packet switched signaling into circuit switched signaling;
an interworking GPRS base station controller that interfaces the SGSN with a GPRS/ANSI-136 base station which supports both ANSI-136 operations and GPRS operations, said interworking GPRS base station controller adapting a signaling format utilized by the SGSN into an air interface signaling format, and passing traffic signaling between the SGSN and the GPRS/ANSI-136 base station; and
means for tunneling ANSI-136 information between the mobile station and the ANSI-41 network by adding the ANSI-136 information to selected GPRS messages.
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Accused Products
Abstract
An integrated radio telecommunications network which integrates an ANSI-41 circuit switched network and a General Packet Radio Service (GPRS) packet data network to support a mobile station which operates in both the ANSI-41 network and the GPRS network. An interworking function interfaces a mobile switching center (MSC) in the ANSI-41 network with a serving GPRS switching node (SGSN) in the GPRS network by mapping circuit switched signaling utilized by the MSC into GPRS packet switched signaling utilized by the SGSN, and mapping GPRS packet switched signaling into circuit switched signaling. An interworking GPRS base station controller interfaces the SGSN with a GPRS/ANSI-136 base station which supports both ANSI-136 operations and GPRS operations. The interworking GPRS base station controller adapts the traffic signaling format utilized by the SGSN into an air interface traffic signaling format utilized by the GPRS/ANSI-136 base station. An authentication center interface passes the authentication state of the mobile station between an ANSI-41 home location register/authentication center (HLR/AC) in the ANSI-41 network, and a GPRS home location register/authentication center (HLR/AUC) in the GPRS network.
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Citations
14 Claims
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1. An integrated radio telecommunications network which integrates an ANSI-41 circuit switched network and a General Packet Radio Service (GPRS) packet data network, said integrated radio telecommunications network comprising:
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a mobile switching center (MSC) in the ANSI-41 network that provides circuit switched services to a mobile station which operates in both the ANSI-41 network and the GPRS network;
a serving GPRS switching node (SGSN) in the GPRS network that provides packet switched services to the mobile station;
an interworking function that interfaces the MSC with the SGSN, said interworking function mapping circuit switched signaling utilized by the MSC into GPRS packet switched signaling utilized by the SGSN, and mapping GPRS packet switched signaling into circuit switched signaling;
an interworking GPRS base station controller that interfaces the SGSN with a GPRS/ANSI-136 base station which supports both ANSI-136 operations and GPRS operations, said interworking GPRS base station controller adapting a signaling format utilized by the SGSN into an air interface signaling format, and passing traffic signaling between the SGSN and the GPRS/ANSI-136 base station; and
means for tunneling ANSI-136 information between the mobile station and the ANSI-41 network by adding the ANSI-136 information to selected GPRS messages. - View Dependent Claims (2, 3, 4)
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5. An integrated radio telecommunications network which integrates an ANSI-41 circuit switched network and a General Packet Radio Service (GPRS) packet data network, said integrated radio telecommunications network comprising:
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a Class D mobile station which operates only over 30 kHz channels in both the ANSI-41 network and the GPRS network;
a mobile switching center (MSC) in the ANSI-41 network that provides circuit switched services to the mobile station;
a serving GPRS switching node (SGSN) in the GPRS network that provides packet switched services to the mobile station;
an interworking function that interfaces the MSC with the SGSN, said interworking function mapping circuit switched signaling utilized by the MSC into GPRS packet switched signaling utilized by the SGSN, and mapping GPRS packet switched signaling into circuit switched signaling; and
an interworking GPRS base station controller that interfaces the SGSN with a GPRS/ANSI-136 base station which supports both ANSI-136 operations and GPRS operations, said interworking GPRS base station controller adapting a signaling format utilized by the SGSN into an air interface signaling format, and passing traffic signaling between the SGSN and the GPRS/ANSI-136 base station. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
a GPRS Home Location Register (GPRS HLR) in the GPRS network which authenticates the Class D mobile station for packet data purposes; and
an ANSI-41 home location register/authentication center (HLR/AC) in the ANSI-41 network which authenticates the Class D mobile station for circuit switched purposes.
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10. The integrated radio telecommunications network of claim 9 further comprising a Class E mobile station which operates only over 30-kHz channels, and only in the GPRS network, said Class E mobile station camping on a packet control channel (PCCH) as its normal mode of operation and only changing to a digital control channel (DCCH) at power-up to verify packet data service availability.
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11. The integrated radio telecommunications network of claim 10 wherein the Class E mobile station is equipped with an IMSI, and the GPRS HLR includes means for authenticating the Class E mobile station.
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12. The integrated radio telecommunications network of claim 5 further comprising means for operating the Class D mobile station over one or more Enhanced-Data-Rates-for-GSM-Evolution (EDGE) channels for a packet data service.
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13. The integrated radio telecommunications network of claim 5 further comprising means for transitioning the operation of Class D mobile station from over the 30 kHz channels to over one or more Enhanced-Data-Rates-for-GSM-Evolution (EDGE) channels.
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14. The integrated radio telecommunications network of claim 13 further comprising means for transitioning the operation of Class D mobile station from over the Enhanced-Data-Rates-for-GSM-Evolution (EDGE) channels to over the 30 kHz channels.
Specification