Initialization of communication channel between a subsciber station and a base station in a subscriber communication system
First Claim
1. A subscriber communication system, including a plurality of base stations, each in a separate network, the base station in each network being in selective communication with a plurality of subscriber stations and having means to transmit control information to its subscriber stations over a radio control channel (RCC) at a frequency selected by the base station from a plurality of predetermined frequencies;
- each base station including means for transmitting over the RCC both control messages to the subscriber stations in its network and a network number unique to that base station; and
each subscriber station in each network including means for receiving the network number from any base station in the system over its respective RCC to enable that subscriber station to determine whether it is in the same network as a particular base station having a particular network number.
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Accused Products
Abstract
A subscriber communication system includes a base station in a network with a plurality of subscriber stations, wherein control information is communicated between the base station and the subscriber stations over a radio control channel (RCC) at a frequency selected by the base station from a plurality of predetermined frequencies. The a base station transmits control messages including a unique network number over the RCC. Each subscriber station processes the network number in the control message received over the RCC to enable the subscriber station to process the control message in accordance with whether the subscriber station is in the same network as the base station. The timing of communications transmitted by a subscriber station over a given communication channel between a base station and the subscriber station is refined upon initial establishment of the communication channel. Both DC signaling information and voice data signals are communicated over an assigned channel between a line appearance that couples a base station to a central office and a line interface that couples a subscriber station to a subscriber terminal.
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Citations
17 Claims
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1. A subscriber communication system, including a plurality of base stations, each in a separate network, the base station in each network being in selective communication with a plurality of subscriber stations and having means to transmit control information to its subscriber stations over a radio control channel (RCC) at a frequency selected by the base station from a plurality of predetermined frequencies;
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each base station including means for transmitting over the RCC both control messages to the subscriber stations in its network and a network number unique to that base station; and each subscriber station in each network including means for receiving the network number from any base station in the system over its respective RCC to enable that subscriber station to determine whether it is in the same network as a particular base station having a particular network number. - View Dependent Claims (2)
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3. A subscriber communication system including a plurality of base stations, each in a separate network, the base station in each network being in selective communication with a plurality of subscriber stations and having means to transmit control information to its subscriber stations over a radio control channel (RCC) at a frequency selected by the base station from a plurality of predetermined frequencies
each base station, including a master clock for providing a system timing signal; - and
each subscriber station including an internal timing generator for generating a subscriber station timing signal for timing the signals that are transmitted over a given communication channel from each subscriber station to a base station; and means for providing a refinement signal timed by the subscriber station timing signal; means operable upon initial establishment of a communication channel between a base station and a subscriber station for transmitting the refinement signal over the respective communication channel from the subscriber station to the base station; wherein each base station further includes means for processing the refinement signal received from a subscriber station in relation to the system timing signal to determine the value of any offset between the timing of the system timing signal and the timing of the refinement signal; means for communicating the determined offset value to the subscriber station; and wherein the subscriber station further includes means coupled to the internal timing generator for processing the offset value communicated from the base station to adjust the subscriber station timing signal to reduce said offset. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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12. A subscriber communication system including a plurality of base stations, each in a separate network, the base station in each network being in selective communication with a plurality of subscriber stations and having means to transmit control information to its subscriber stations over a radio control channel (BCC) at a frequency selected by the base station from a plurality of predetermined frequencies wherein voice data signals are communicated over an assigned channel between a line appearance that couples a base station to a central office and a line interface that couples a subscriber station to a subscriber terminal, at a base station,
each base station being coupled to a line appearance for providing an assigned channel for communicating voice data signals between the line appearance and a subscriber station; -
each subscriber station being coupled to a line interface for providing an assigned channel for communicating voice data signals between the line interface and the base station; and means for processing DC signaling information for communication over the assigned channel between the line appearance and the line interface. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification