Method and apparatus for time sharing a radio communication channel
First Claim
1. A method in a radio communication system for providing time sharing of a radio communication channel among a plurality of interfering cells, the radio communication channel utilized by the radio communication system for transmitting information in a plurality of time slots, the method comprising the steps of:
- partitioning the radio communication channel into a plurality of virtual channels, a virtual channel able to be activated for the duration of one or more of the plurality of time slots, and utilized by a fixed portion of the radio communication system for communicating simultaneously with portable subscriber units in corresponding ones of the plurality of interfering cells which are assigned to the virtual channel;
operating no more than one of the plurality of virtual channels during any one of the plurality of time slots; and
optimizing the time sharing of the radio communication channel by activating selected ones of the plurality of virtual channels during the one or more of the plurality of time slots, based upon a traffic load defined for each virtual channel to be equal to the traffic load handled by a busiest one of the plurality of interfering cells assigned to the virtual channel.
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Accused Products
Abstract
Time sharing of a radio communication channel among a plurality of interfering cells (302) is provided. The radio communication channel transmits information in a plurality of time slots (502). The radio communication channel is partitioned (704) into a plurality of virtual channels (V1, V2). A virtual channel is used for communicating simultaneously with corresponding ones of the plurality of interfering cells which are assigned to the virtual channel. No more than one of the plurality of virtual channels operates during any one of the plurality of time slots, and the time sharing of the radio communication channel is optimized (708, 710) by activating selected ones of the plurality of virtual channels, based upon a traffic load applicable to the corresponding ones of the plurality of interfering cells.
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Citations
20 Claims
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1. A method in a radio communication system for providing time sharing of a radio communication channel among a plurality of interfering cells, the radio communication channel utilized by the radio communication system for transmitting information in a plurality of time slots, the method comprising the steps of:
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partitioning the radio communication channel into a plurality of virtual channels, a virtual channel able to be activated for the duration of one or more of the plurality of time slots, and utilized by a fixed portion of the radio communication system for communicating simultaneously with portable subscriber units in corresponding ones of the plurality of interfering cells which are assigned to the virtual channel; operating no more than one of the plurality of virtual channels during any one of the plurality of time slots; and optimizing the time sharing of the radio communication channel by activating selected ones of the plurality of virtual channels during the one or more of the plurality of time slots, based upon a traffic load defined for each virtual channel to be equal to the traffic load handled by a busiest one of the plurality of interfering cells assigned to the virtual channel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A communication system controller in a radio communication system for providing time sharing of a radio communication channel among a plurality of interfering cells, the radio communication channel utilized by the radio communication system for transmitting information in a plurality of time slots, the communication system controller comprising:
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a network interface for accepting messages to be transmitted on the radio communication channel; a transmitter interface coupled to the network interface for transmitting the messages; a processing system coupled to the network interface and to the transmitter interface for directing operations of the communication system controller; a partitioner coupled to the processing system for partitioning the radio communication channel into a plurality of virtual channels, a virtual channel able to be activated for the duration of one or more of the plurality of time slots, and utilized by a fixed portion of the radio communication system for communicating simultaneously with portable subscriber units in corresponding ones of the plurality of interfering cells which are assigned to the virtual channel; and a multiplexer coupled to the processing system for operating no more than one of the plurality of virtual channels during any one of the plurality of time slots, wherein the processing system is programmed to optimize the time sharing of the radio communication channel by activating selected ones of the plurality of virtual channels during the one or more of the plurality of time slots, based upon a traffic load defined for each virtual channel to be equal to the traffic load handled by a busiest one of the plurality of interfering cells assigned to the virtual channel. - View Dependent Claims (8, 9, 10)
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11. A method in a radio communication system for providing time sharing of a radio communication channel among a plurality of interfering cells, the radio communication channel utilized by the radio communication system for transmitting information in a plurality of time slots, the method comprising the steps of:
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partitioning the radio communication channel into a plurality of virtual channels, a virtual channel able to be activated for the duration of one or more of the plurality of time slots, and utilized by a fixed portion of the radio communication system for communicating simultaneously with portable subscriber units in corresponding ones of the plurality of interfering cells which are assigned to the virtual channel; operating no more than one of the plurality of virtual channels during any one of the plurality of time slots; and optimizing the time sharing of the radio communication channel by activating selected ones of the plurality of virtual channels during the one or more of the plurality of time slots, based upon a traffic load defined for each virtual channel to be equal to an average traffic load handled by the plurality of interfering cells which are assigned to the virtual channel. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A communication system controller in a radio communication system for providing time sharing of a radio communication channel among a plurality of interfering cells, the radio communication channel utilized by the radio communication system for transmitting information in a plurality of time slots, the communication system controller comprising:
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a network interface for accepting messages to be transmitted on the radio communication channel; a transmitter interface coupled to the network interface for transmitting the messages; a processing system coupled to the network interface and to the transmitter interface for directing operations of the communication system controller; a partitioner coupled to the processing system for partitioning the radio communication channel into a plurality of virtual channels, a virtual channel able to be activated for the duration of one or more of the plurality of time slots, and utilized by a fixed portion of the radio communication system for communicating simultaneously with portable subscriber units in corresponding ones of the plurality of interfering cells which are assigned to the virtual channel; and a multiplexer coupled to the processing system for operating no more than one of the plurality of virtual channels during any one of the plurality of time slots, wherein the processing system is programmed to optimize the time sharing of the radio communication channel by activating selected ones of the plurality of virtual channels during the one or more of the plurality of time slots, based upon a traffic load defined for each virtual channel to be equal to an average traffic load handled by the plurality of interfering cells which are assigned to the virtual channel. - View Dependent Claims (18, 19, 20)
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Specification