Method and apparatus for message scheduling in a multi-site data radio communication system
First Claim
1. A method for scheduling outbound signal transmissions in a radio communication system, wherein the radio communication system comprises a system controller, a plurality of cell transmitters which transmit a plurality of outbound signals, and a plurality of selective call transceivers which transmit inbound signals, and wherein each outbound signal comprises at least one message intended for one of the plurality of selective call transceivers, and wherein the method is used in the system controller and comprises the steps of:
- selecting a set of messages from a queue of messages which are queued for delivery to at least one of the plurality of selective call transceivers, wherein each message in the queue of messages is associated with one of the plurality of selective call transceivers and has a duration;
determining a best power level and a best cell transmitter associated with each message in the set of messages, wherein the best power level is determined for use at the best cell transmitter to reliably communicate each message to one of the plurality of selective call transceivers at a minimum required power level;
scheduling transmission times of the set of messages; and
controlling transmission of a set of outbound signals comprising the set of messages from the plurality of cell transmitters according to the transmission times scheduled in said step of scheduling transmission times.
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Accused Products
Abstract
A system controller (102) is for scheduling outbound signal transmissions in a radio communication system (100). A scheduled memory (414) is for storing a set of messages. A best cell means (430) is for determining a best power level and a best cell transmitter associated with each message in the set of messages. The best power level reliably communicates each message at a minimum required power level. A scheduling means (416) is coupled to the best cell means (430) and the scheduled memory (414) and is for generating an initial schedule of transmission times of the set of messages and improving the initial schedule. A cell site controller (402) is for controlling transmissions of a set of outbound signals from the plurality of cell transmitters according to the transmission times stored in the scheduled memory (414).
99 Citations
42 Claims
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1. A method for scheduling outbound signal transmissions in a radio communication system, wherein the radio communication system comprises a system controller, a plurality of cell transmitters which transmit a plurality of outbound signals, and a plurality of selective call transceivers which transmit inbound signals, and wherein each outbound signal comprises at least one message intended for one of the plurality of selective call transceivers, and wherein the method is used in the system controller and comprises the steps of:
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selecting a set of messages from a queue of messages which are queued for delivery to at least one of the plurality of selective call transceivers, wherein each message in the queue of messages is associated with one of the plurality of selective call transceivers and has a duration; determining a best power level and a best cell transmitter associated with each message in the set of messages, wherein the best power level is determined for use at the best cell transmitter to reliably communicate each message to one of the plurality of selective call transceivers at a minimum required power level; scheduling transmission times of the set of messages; and controlling transmission of a set of outbound signals comprising the set of messages from the plurality of cell transmitters according to the transmission times scheduled in said step of scheduling transmission times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A system controller for scheduling outbound signal transmissions in a radio communication system, wherein the radio communication system comprises a system controller, a plurality of cell transmitters which transmit a plurality of outbound signals, and a plurality of selective call transceivers which transmit inbound signals, and wherein each outbound signal comprises at least one message intended for one of the plurality of selective call transceivers, and wherein the system controller comprises:
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a queue memory for storing a queue of messages which are queued for delivery to at least one of the plurality of selective call transceivers, wherein each message in the queue memory is associated with one of the plurality of selective call transceivers and has a duration; message selection means, coupled to said queue memory, for selecting a set of messages from the queue memory; a scheduled memory, coupled to said message selection means for storing the set of messages; best cell means for determining a best power level and a best cell transmitter associated with each message in the set of messages, wherein the best power level is determined for use at the best cell transmitter to reliably communicate each message to one of the plurality of selective call transceivers at a minimum required power level; scheduling means, coupled to said best cell means and said scheduled memory, for scheduling transmission times of the set of messages; and a cell site controller, coupled to said queue memory, said scheduled memory, and said plurality of cell transmitters, for controlling transmissions of a set of outbound signals from the plurality of cell transmitters according to the transmission times stored in said scheduled memory, wherein the set of outbound signals comprise the set of messages stored in said scheduled memory. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification