METHOD AND APPARATUS FOR DETERMINING APPROPRIATE CHANNELS FOR COMMUNICATION
First Claim
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1. A method comprising the steps of:
- monitoring a group of channels for transmissions as part of a secondary communication system;
determining that a channel from the group of the channels has transmissions by a primary user;
removing the channel from the group of channels being monitored;
determining that other channels from outside of the group of channels need monitoring;
adding channels outside the group of channels to the group of channels being monitored for transmissions.
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Abstract
During operation of a secondary communication system 100, a device will perform spectrum sensing of certain channels (either by itself or as part of a group of nodes 104). When activity is found on a channel from a primary user, other devices will be notified that the channel is not available for use. The device may then modify its spectrum sensing to assist another device (or group of devices) that have not yet found activity on a different set of channels. By assigning additional channels to devices with extra capacity, the overall spectrum-sensing efficiency and performance of the communication system 100 is raised.
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Citations
20 Claims
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1. A method comprising the steps of:
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monitoring a group of channels for transmissions as part of a secondary communication system; determining that a channel from the group of the channels has transmissions by a primary user; removing the channel from the group of channels being monitored; determining that other channels from outside of the group of channels need monitoring; adding channels outside the group of channels to the group of channels being monitored for transmissions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising the steps of:
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monitoring a group of N channels for activity as part of a secondary communication system; determining that a channel from the group of N channels has activity by a primary user; removing the channel from the group of N channels being monitored; determining that other channels from outside of the group of N channels need monitoring; adding channels outside the group of channels to the group of channels being monitored for activity so that a total number of channels being monitored is equal to N channels. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus comprising:
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monitoring circuitry monitoring a group of channels for transmissions as part of a secondary communication system; and logic circuitry determining that a channel from the group of the channels has transmissions by a primary user, removing the channel from the group of channels being monitored, determining that other channels from outside of the group of channels need monitoring, and adding channels outside the group of channels to the group of channels being monitored for transmissions. - View Dependent Claims (18, 19, 20)
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Specification