ORTHOGONAL FREQUENCY HOPPING USING SKIP ZONES
First Claim
1. A method to provide orthogonal frequency hopping for users in a communication system, the users having user bandwidths allocated on a frequency band, the method comprising:
- providing a jitter space with a jitter bandwidth on the allocated frequency band; and
determining a skip zone for the at least one of the user bandwidths when at least one of the user bandwidths is larger than the jitter space, the skip zone being unoccupied by a starting hop of the user bandwidths when the user bandwidths are shifted in a frequency hopping.
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Abstract
The present invention is a method and apparatus for providing orthogonal frequency hopping for users in a communication system. The users have user bandwidths allocated on a frequency band. A jitter space is provided with a jitter bandwidth on the allocated frequency band. If at least one of the user bandwidths is larger than the jitter space, a skip zone is determined for at least one of the user bandwidths. The skip zone is unoccupied by a starting hop of the user bandwidths when the user bandwidths are shifted in a frequency hopping.
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Citations
22 Claims
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1. A method to provide orthogonal frequency hopping for users in a communication system, the users having user bandwidths allocated on a frequency band, the method comprising:
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providing a jitter space with a jitter bandwidth on the allocated frequency band; and
determining a skip zone for the at least one of the user bandwidths when at least one of the user bandwidths is larger than the jitter space, the skip zone being unoccupied by a starting hop of the user bandwidths when the user bandwidths are shifted in a frequency hopping. - View Dependent Claims (2, 3, 4)
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5. A method for planning user bandwidths in a frequency band, the method comprising:
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determining a user bandwidth; and
updating the user bandwidth a first time when the user bandwidth crosses an invalid zone, and updating the user bandwidth at wrap-around when the once updated user bandwidth wraps around the frequency band. - View Dependent Claims (6, 7, 8, 9, 10)
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11. An apparatus for providing an operational frequency in a frequency band, the frequency band being allocated to user frequencies, the apparatus comprising:
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a random generator to provide a random index when a frequency hopping occurs;
a network implementation plan (NIP) parameter storage to provide orthogonal frequency hopping (OFH) parameters; and
a frequency generator coupled to the random generator to generate the operational frequency based on the random index, the operational frequency being orthogonal to other user frequencies in the frequency band. - View Dependent Claims (12, 13, 14)
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15. A system comprising:
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at least a transponder operating at a frequency band; and
a communication unit for providing an operational frequency in the frequency band, the frequency band being allocated to user frequencies, the communication unit comprising;
a random generator to provide a random index when a frequency hopping occurs, a network implementation plan (NIP) parameter storage to provide orthogonal frequency hopping (OFH) parameters, and a frequency generator coupled to the random generator to generate the operational frequency based on the random index, the operational frequency being orthogonal to other user frequencies in the frequency band. - View Dependent Claims (16, 17, 18)
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19. A method for orthogonal frequency hopping, the method comprising:
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operating at least a transponder at a frequency band; and
providing an operational frequency in the frequency band for a communication unit, the frequency band being allocated to user frequencies, providing an operational frequency comprising;
providing a random index by a random generator when a frequency hopping occurs, providing orthogonal frequency hopping (OFH) parameters by a network implementation plan (NIP) parameter storage, and generating the operational frequency by a frequency generator based on the random index, the operational frequency being orthogonal to other user frequencies in the frequency band. - View Dependent Claims (20, 21, 22)
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Specification