Call routing in a telecommunication system
First Claim
1. A method of routing calls in a telecommunication system comprising:
- a mobile communication system comprising at least one mobile services switching center and at least one base station connected thereto, and mobile stations wherefrom a telecommunication connection is established to the mobile services switching center through the base station by using a first predetermined telecommunication protocol on a radio connection,a packet data network, external to said mobile communications system, wherein data to be transmitted is transmitted in data packets, according to a packet data network protocol specified for the packet data network, the packet data network protocol being other than the first predetermined telecommunication protocol,a server communicating with the mobile services switching center and said packet data network, the server being configured to arrange messages according to the first predetermined telecommunication protocol arranged as such into data packets according to said packet data network protocol and supplied from the mobile communication system to be forwarded through said packet data network to a terminal, the server being further configured to decompress messages according to the first telecommunication predetermined protocol arranged as such in the data packets according to said packet data network protocol and supplied from the terminal through the packet data network to be forwarded to the mobile communication system, andat least one terminal of a second wireless communication system, other than said mobile communication system, said terminal being arranged to support said packet data network protocol, the terminal being other than one of said mobile stations in the mobile communication system,the method comprising;
establishing a telecommunication connection from said terminal to the mobile communication system by establishing a first part of said telecommunication connection from said terminal to said packet data network by using a second predetermined telecommunication protocol, other than said packet data network protocol and other than said first predetermined telecommunication protocol, through which a first part of the data packets according to said packet data network protocol are configured to be transmitted, the telecommunication connection comprising a second part from said packet data network to the mobile communication system via the server, through which the second part of the messages according to the first predetermined telecommunication protocol can be transmitted;
transmitting and receiving by said terminal over said telecommunication connection established using the second predetermined telecommunication protocol the messages according to the first predetermined telecommunication protocol as the data in said data packets, the messages being arranged as such into the data packets according to said packet data network protocol; and
emulating, by the terminal of said second wireless communication system, a mobile station of said mobile communication system.
6 Assignments
0 Petitions
Accused Products
Abstract
A method of routing calls in a telecommunication system including a mobile services switching center (MSC) and a base station connected thereto, and mobile stations wherefrom a telecommunication connection is established by using a first predetermined protocol on a radio connection. The telecommunication system further includes a packet data network, a server communicating with the MSC and the packet data network, wherefrom a telecommunication connection is established through the packet data network and the server to the MSC. In the server, messages according to the first protocol supplied from the MSC are as such arranged into data packets of data network protocol to be forwarded through the packet data network to the terminal. The terminal transmits and receives the messages according to the first protocol arranged as such into the data packets of the packet data network protocol and emulates a mobile station using the first protocol.
-
Citations
24 Claims
-
1. A method of routing calls in a telecommunication system comprising:
-
a mobile communication system comprising at least one mobile services switching center and at least one base station connected thereto, and mobile stations wherefrom a telecommunication connection is established to the mobile services switching center through the base station by using a first predetermined telecommunication protocol on a radio connection, a packet data network, external to said mobile communications system, wherein data to be transmitted is transmitted in data packets, according to a packet data network protocol specified for the packet data network, the packet data network protocol being other than the first predetermined telecommunication protocol, a server communicating with the mobile services switching center and said packet data network, the server being configured to arrange messages according to the first predetermined telecommunication protocol arranged as such into data packets according to said packet data network protocol and supplied from the mobile communication system to be forwarded through said packet data network to a terminal, the server being further configured to decompress messages according to the first telecommunication predetermined protocol arranged as such in the data packets according to said packet data network protocol and supplied from the terminal through the packet data network to be forwarded to the mobile communication system, and at least one terminal of a second wireless communication system, other than said mobile communication system, said terminal being arranged to support said packet data network protocol, the terminal being other than one of said mobile stations in the mobile communication system, the method comprising; establishing a telecommunication connection from said terminal to the mobile communication system by establishing a first part of said telecommunication connection from said terminal to said packet data network by using a second predetermined telecommunication protocol, other than said packet data network protocol and other than said first predetermined telecommunication protocol, through which a first part of the data packets according to said packet data network protocol are configured to be transmitted, the telecommunication connection comprising a second part from said packet data network to the mobile communication system via the server, through which the second part of the messages according to the first predetermined telecommunication protocol can be transmitted; transmitting and receiving by said terminal over said telecommunication connection established using the second predetermined telecommunication protocol the messages according to the first predetermined telecommunication protocol as the data in said data packets, the messages being arranged as such into the data packets according to said packet data network protocol; and emulating, by the terminal of said second wireless communication system, a mobile station of said mobile communication system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A telecommunication system for routing calls, the system comprising:
-
a mobile communication system comprising at least one mobile services switching center and at least one base station connected thereto, and mobile stations arranged to establish a telecommunication connection to the mobile services switching center through the base station by using a first predetermined telecommunication protocol on a radio connection, a packet data network, external to said mobile communication system, wherein data to be transmitted is arranged to be transmitted in data packets according to a protocol specified for the packet data network, the packet data network protocol being other than the first predetermined telecommunication protocol, a server configured to communicate with the mobile services switching center and said packet data network, said server being configured to arrange messages according to the first predetermined telecommunication protocol supplied from the mobile services switching centre as such into data packets according to said packet data network protocol to be forwarded through said packet data network, the server being further configured to decompress messages according to the first predetermined telecommunication protocol arranged as such in the data packets according to said packet data network protocol and supplied from the packet data network to be forwarded to the mobile switching center, and at least one terminal of a second wireless communication system, other than said mobile communication system, arranged to establish a telecommunication connection to said mobile communication system through the packet data network and the server to the mobile switching center, said terminal being other than a mobile station of the mobile communication system, wherein said terminal is arranged to establish a first part of the telecommunication connection to said packet data network by using a second predetermined telecommunication protocol, other than said packet data network protocol and said first predetermined telecommunication connection, through which first part the data packets according to said packet data network protocol are configured to be transmitted, said terminal is arranged to transmit and receive in said data packets the messages according to the first predetermined telecommunication protocol arranged as such into the data packets according to said packet data network protocol, and the terminal of said second wireless telecommunication system is arranged to emulate a mobile station of said mobile communication system. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A terminal configured to establish a telecommunication connection to a mobile communication system through a packet data network of a first communication system and a server instead of a direct connection to the mobile communication system, the telecommunication connection comprising a first part between the terminal and the packet data network for transmitting and, receiving data in data packets, and a second part between the packet data network and the mobile communication system, the terminal comprising:
-
a transceiver configured to use a packet data network protocol of the first communication system to receive and transmit data in data packets over the packet data network on the first part of the connection; and an emulator configured to emulate a mobile station of the mobile communication system by transmitting and receiving in said data in data packets messages according to a first predetermined telecommunication protocol of the mobile communication system, the first predetermined telecommunication protocol being other than said packet data network protocol and used in the mobile communication system to receive and transmit data, wherein the terminal is further configured; to perform call control signaling through said packet data network to said server, to decompress speech frames and signaling messages according to said first predetermined telecommunication protocol in data packets according to said protocol specified for the packet data network, to decrypt encryption in the received frames according to the first predetermined telecommunication protocol, to encrypt the frames to be transmitted according to the first predetermined telecommunication protocol, to block de-interleave and unmix the decrypted frames, to block interleave and mix the frames to be transmitted, and to encode and decode channel and speech coding. - View Dependent Claims (21, 22, 23, 24)
-
Specification