Control message transmission in telecommunications systems
First Claim
1. Telecommunications apparatus for a central station of a wireless telephony network including a plurality of subscriber stations and said central station, which provides wireless communications with said subscriber stations via respective wireless links, said apparatus comprising:
- a plurality of modems for providing telephone connections via said wireless links;
a tributary unit for connection to a public switched telephone network; and
a control communications controller for the communication of control messages with an external network controller of said wireless telephony network, wherein said control communications controller is configured to enable the communication of control message packets with said network controller under a first, balanced, message protocol, where said control communications controller or said network controller is able to initiate an exchange of information;
said control communications controller being further configured to enable the communication of control messages with said modems and said subscriber stations under a second, master-slave, message protocol, where said control communications controller acts as a master unit and said modems and subscriber units act as slave units with control messages being communicated to said subscriber units via said wireless links;
said control communications controller being arranged to be responsive to a control message packet received from said network controller in accordance with said first message protocol to unpack said message packet, to establish a control link with an addressed slave unit and to transmit a control message in accordance with said second message protocol to said addressed slave unit; and
said control communications controller being arranged to be responsive to a control message received in accordance with said second message protocol from a slave unit for which a control link has been established to assemble a message packet for said control message and to transmit said message packet to said network controller in accordance with said first message protocol.
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Accused Products
Abstract
A communications protocol interface is arranged at a central station of a telecommunications network and is responsive to a control message received from a network controller in accordance with a first message protocol to transmit the control message in accordance with a second message protocol to subscriber stations and is responsive to a control message received in accordance with the second message protocol to transmit the control message to the network controller in accordance with the first message protocol. The first message protocol is a balanced protocol with the communications protocol converter or the network controller able to initiate an exchange of information. The second message protocol is a master-slave protocol with the communications protocol interface acting as master. The second control message protocol operates over central station bus for communicating with at least one network element in the central station.
72 Citations
10 Claims
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1. Telecommunications apparatus for a central station of a wireless telephony network including a plurality of subscriber stations and said central station, which provides wireless communications with said subscriber stations via respective wireless links, said apparatus comprising:
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a plurality of modems for providing telephone connections via said wireless links;
a tributary unit for connection to a public switched telephone network; and
a control communications controller for the communication of control messages with an external network controller of said wireless telephony network, wherein said control communications controller is configured to enable the communication of control message packets with said network controller under a first, balanced, message protocol, where said control communications controller or said network controller is able to initiate an exchange of information;
said control communications controller being further configured to enable the communication of control messages with said modems and said subscriber stations under a second, master-slave, message protocol, where said control communications controller acts as a master unit and said modems and subscriber units act as slave units with control messages being communicated to said subscriber units via said wireless links;
said control communications controller being arranged to be responsive to a control message packet received from said network controller in accordance with said first message protocol to unpack said message packet, to establish a control link with an addressed slave unit and to transmit a control message in accordance with said second message protocol to said addressed slave unit; and
said control communications controller being arranged to be responsive to a control message received in accordance with said second message protocol from a slave unit for which a control link has been established to assemble a message packet for said control message and to transmit said message packet to said network controller in accordance with said first message protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification