FREQUENCY HOPPING RADIO SYSTEM
First Claim
1. A method comprising:
- assessing quality of a radio channel for a frequency hopping radio communication system, whereinthe radio channel is in a range of channels available for radio communication,the range of channels available for radio communication comprises a hopset of channels used for frequency hopping that is a subset of channels in the range of channels and a channel pool of channels not comprised in the hopset, andthe frequency hopping radio communication system comprises a hopset processor that performs said assessing;
removing the channel from the hopset when the assessed quality is below a predetermined threshold;
providing a probability set, wherein the probability set comprises selection probability values for respective radio channels in the range of channels;
modifying adapting the probability values based on the assessed quality in the respective radio channels;
pseudorandomly selecting a channel from the channel pool weighted by the probability values; and
adding the pseudorandom selected channel to the hopset.
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Accused Products
Abstract
An electronic device is provided for determining a hopset for a frequency hopping radio communication system. The hopset is a number of radio channels in a range of channels available for radio communication, and other channels in the range constituting a channel pool of pool channels. A hopset processor assesses quality of the radio channels for communication, and removes a channel from the hopset when the assessed quality is below a predetermined threshold. A probability set is provided, the probability set having probability values for respective radio channels in the range, which probability values are adapted based on the assessed quality in the respective radio channels. A replacement channel is selected in a pseudorandom way from the channel pool weighted by the probability values, and then added to the hopset. Due to the pseudorandom selection of channels for the hopset the system can efficiently cope with various interferences.
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Citations
22 Claims
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1. A method comprising:
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assessing quality of a radio channel for a frequency hopping radio communication system, wherein the radio channel is in a range of channels available for radio communication, the range of channels available for radio communication comprises a hopset of channels used for frequency hopping that is a subset of channels in the range of channels and a channel pool of channels not comprised in the hopset, and the frequency hopping radio communication system comprises a hopset processor that performs said assessing; removing the channel from the hopset when the assessed quality is below a predetermined threshold; providing a probability set, wherein the probability set comprises selection probability values for respective radio channels in the range of channels; modifying adapting the probability values based on the assessed quality in the respective radio channels; pseudorandomly selecting a channel from the channel pool weighted by the probability values; and adding the pseudorandom selected channel to the hopset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19-20. -20. (canceled)
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21. An apparatus to determine a hopset for a frequency hopping radio communication system, the apparatus comprising:
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a receiver unit, configured to receive a signal on a radio channel, wherein the receiver unit comprises a channel quality unit configured to assess a quality of radio transmission for a radio channel, and the radio channel is in a range of channels available for radio communication; and a hopset processor, coupled to the receiver unit, and configured to remove the radio channel from a hopset of channels if the assessed quality of radio transmission for the radio channel is less than a predetermined threshold, wherein the range of channels comprises the hopset of channels that comprises a subset of channels in the range of channels and a channel pool of channels in the range of channels that is not comprised in the hopset, provide a probability set that comprises selection probability values for respective radio channels in the range of channels, modify a selection probability value for the radio channel based on the assessed quality of radio transmission for the radio channel, and pseudorandomly select a channel to add to the hopset from the channel pool using the probability set. - View Dependent Claims (22)
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Specification