Aggregate batch polling method for return link communications between a platform and a base station
First Claim
1. A method to assign communication channels between one or more mobile platforms and a ground station in a communication system which comprises at least one satellite-based transponder, the method comprising:
- generating a randomly ordered list of mobile platforms which do not have a return communication channel to the ground station;
determining a number, n, of available communication channels at the ground station;
assigning the mobile platforms into the corresponding number, n, of aggregate groups;
wherein determining, for each aggregate group, a worst-case power spectral density (PSD) measure comprises;
transmitting a poll message to the aggregate groups;
receiving a response from the mobile platforms in the aggregate groups;
determining a PSD measure for each mobile platform in the aggregate groups;
selecting the highest PSD measure associated with a mobile platform in a given aggregate group as the worst case PSD measure for the aggregate group; and
assigning a return communication channel to the plurality of mobile platforms in an aggregate group when the worst-case PSD measure is beneath a threshold.
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Accused Products
Abstract
Implementations are described that use a control center to maintain a list of registered mobile platforms that are pre-authorized to make use of the satellite-based transponder to transmit and receive data content to and from the base transceiver. The control center may cause the base transceiver to transmit at least one polling message, the polling message carries information addressed to a specific aggregate group of the registered mobile platforms and includes a return channel which may be used by a mobile platform to communicate with the base transceiver. In one implementation, the control center protects the system from exceeding power spectral density (PSD) statistical limits by using the mobile platform in the group that has a greatest power spectral density signal as the PSD that the aggregate group will generate.
13 Citations
14 Claims
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1. A method to assign communication channels between one or more mobile platforms and a ground station in a communication system which comprises at least one satellite-based transponder, the method comprising:
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generating a randomly ordered list of mobile platforms which do not have a return communication channel to the ground station; determining a number, n, of available communication channels at the ground station; assigning the mobile platforms into the corresponding number, n, of aggregate groups; wherein determining, for each aggregate group, a worst-case power spectral density (PSD) measure comprises;
transmitting a poll message to the aggregate groups;
receiving a response from the mobile platforms in the aggregate groups;
determining a PSD measure for each mobile platform in the aggregate groups;
selecting the highest PSD measure associated with a mobile platform in a given aggregate group as the worst case PSD measure for the aggregate group; and
assigning a return communication channel to the plurality of mobile platforms in an aggregate group when the worst-case PSD measure is beneath a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system to assign communication channels between one or more mobile platforms and a ground station in a communication system which comprises at least one satellite-based transponder, the system comprising a network operations center to:
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generate a randomly ordered list of mobile platforms which do not have a return communication channel to the ground station; determine a number, n, of available communication channels at the ground station; assign the mobile platforms into the corresponding number, n, of aggregate groups; determine, for each aggregate group, a worst-case power spectral density (PSD) measure, wherein the network operations center further;
transmits a poll message to the aggregate groups;
receives a response from the mobile platforms in the aggregate groups;
determines a PSD measure for each mobile platform in the aggregate groups;
selects the highest PSD measure associated with a mobile platform in a given aggregate group as the worst case PSD measure for the aggregate group; and
assign a return communication channel to the plurality of mobile platforms in an aggregate group when the worst-case PSD measure is beneath a threshold. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification