Method for frequency channel selection in a satellite communication system
First Claim
1. A method for frequency channel selection over wireless communications in a satellite communication system, the satellite communications system comprising at least a gateway and at least a first communications satellite, said satellite using a satellite frequency band, said satellite frequency band comprising a series of frequency channels, a radio terminal having a transceiver including at least a receiver and at least a transmitter, said transmitter capable of communicating through said gateway by way of the satellite using a portion of the satellite frequency band, said radio terminal selectively communicating via a wireless terrestrial link using a part of said portion of the satellite frequency band so as to terrestrially reuse that part of said portion of the satellite frequency band (the “
- reused frequency band”
);
the method comprising the steps of measuring a characteristic of each frequency channel in said portion of said satellite frequency band, received at said gateway, and selecting for said transmitter either a frequency channel in said reused frequency band or outside of said reused frequency band, where said selected frequency channel is selected based on said measured characteristic which comprises power, and said frequency channel selected is within said reused frequency band when said power in each frequency channel in said portion of said satellite frequency band that is outside said reused frequency band, exceeds a predetermined level.
4 Assignments
0 Petitions
Accused Products
Abstract
A communications system comprising a first transceiver and a second transceiver, which system employs a device that measures power over a frequency band from sources other than those monitoring downlink radiation received at a radio terminal from the satellite, and a controller that receives these power measurements to determine on which frequency channel within a band a transmitter is to transmit.
20 Citations
15 Claims
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1. A method for frequency channel selection over wireless communications in a satellite communication system, the satellite communications system comprising at least a gateway and at least a first communications satellite, said satellite using a satellite frequency band, said satellite frequency band comprising a series of frequency channels, a radio terminal having a transceiver including at least a receiver and at least a transmitter, said transmitter capable of communicating through said gateway by way of the satellite using a portion of the satellite frequency band, said radio terminal selectively communicating via a wireless terrestrial link using a part of said portion of the satellite frequency band so as to terrestrially reuse that part of said portion of the satellite frequency band (the “
- reused frequency band”
);the method comprising the steps of measuring a characteristic of each frequency channel in said portion of said satellite frequency band, received at said gateway, and selecting for said transmitter either a frequency channel in said reused frequency band or outside of said reused frequency band, where said selected frequency channel is selected based on said measured characteristic which comprises power, and said frequency channel selected is within said reused frequency band when said power in each frequency channel in said portion of said satellite frequency band that is outside said reused frequency band, exceeds a predetermined level.
- reused frequency band”
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2. A method for frequency channel selection over wireless communications in a satellite communication system, the satellite communications system comprising at least a gateway and at least a first communications satellite, said satellite communicates using a satellite frequency band, said satellite frequency band comprising a series of frequency channels, a radio terminal having a transceiver including at least a receiver and at least a transmitter, said transmitter capable of communicating through said gateway by way of the satellite using a portion of the satellite frequency band, said radio terminal selectively communicating via a wireless terrestrial link using a part of said portion of the satellite frequency band so as to terrestrially reuse that part of said portion of the satellite frequency band (the “
- reused frequency band”
);the method comprising the steps of measuring a characteristic of each frequency channel in said portion of said satellite communication band received at said terminal, transmitting said measured characteristics to a controller associated with said gateway, said controller selecting for said transmitter either a frequency channel in said reused frequency band or outside of said reused frequency band, where said selected frequency channel is selected based on said measured characteristic which comprises power and said frequency channel selected is within said reused frequency band when said power in said portion of satellite frequency band that is outside said reused frequency band, exceeds a predetermined level.
- reused frequency band”
-
3. A method for frequency channel selection over wireless communications in a satellite communication system, the satellite communications system comprising at least a gateway and at least a first communications satellite, said satellite using a satellite frequency band, said satellite frequency band comprising a series of frequency channels, a radio terminal having a transceiver including at least a receiver and at least a transmitter, said transmitter capable of communicating through said gateway by way of the satellite using a portion of the satellite frequency band, said radio terminal selectively communicating via a wireless terrestrial link using a part of said portion of the satellite frequency band so as to terrestrially reuse that part of said portion of the satellite frequency band (the “
- reused frequency band”
);the method comprising the steps of measuring a characteristic of each frequency channel in said portion of said satellite frequency band, received at said gateway, and selecting for said transmitter either a frequency channel in said reused frequency band or outside of said reused frequency band, where said selected frequency channel is selected based on said measured characteristic which comprises power, and said frequency channel selected is outside said reused frequency band when said power in each frequency channel in said portion of said satellite frequency band that is within said reused frequency band exceeds a predetermined level. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10)
- reused frequency band”
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11. A method for frequency channel selection over wireless communications in a satellite communication system, the satellite communications system comprising at least a gateway and at least a first communications satellite, said satellite communicates using a satellite frequency band, said satellite frequency band comprising a series of frequency channels, a radio terminal having a transceiver including at least a receiver and at least a transmitter, said transmitter capable of communicating through said gateway by way of the satellite using a portion of the satellite frequency band, said radio terminal selectively communicating via a wireless terrestrial link using a part of said portion of the satellite frequency band so as to terrestrially reuse that part of said portion of the satellite frequency band (the “
- reused frequency band”
);the method comprising the steps of measuring a characteristic of each frequency channel in said portion of said satellite communication band received at said terminal, transmitting said measured characteristics to a controller associated with said gateway, said controller selecting for said transmitter either a frequency channel in said reused frequency band or outside of said reused frequency band, where said selected frequency channel is selected based on said measured characteristic which comprises power, and said frequency channel selected is outside said reused frequency band when said power in said portion of satellite frequency band that is within said reused frequency band exceeds a predetermined level. - View Dependent Claims (12, 13, 14, 15)
- reused frequency band”
Specification