APPARATUS AND METHOD FOR MEDIUM ACCESS CONTROL IN WIRELESS COMMUNICATION NETWORKS
First Claim
1. A method comprising:
- identifying a white space at a first wireless node, the white space comprising at least one frequency or frequency band not in use;
selecting a channel in the identified white space;
identifying at the first wireless node a channel access factor for each of multiple wireless nodes including the first wireless node;
determining if the first wireless node has a specified channel access factor; and
transmitting data from the first wireless node on the channel when the first wireless node has the specified channel access factor.
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Accused Products
Abstract
A method includes identifying a white space at a first wireless node and selecting a channel in the identified white space. The white space includes at least one frequency or frequency band not in use (like a licensed frequency or frequency band). The method also includes identifying at the first wireless node a channel access factor for each of multiple wireless nodes including the first wireless node. The method further includes determining if the first wireless node has a specified channel access factor. In addition, the method includes transmitting data from the first wireless node on the channel when the first wireless node has the specified channel access factor. The channel access factors can be identified and the determination whether the first wireless node has the specified channel access factor can be performed without using control signals transmitted between the wireless nodes. The channel access factor could represent a hash function value.
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Citations
20 Claims
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1. A method comprising:
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identifying a white space at a first wireless node, the white space comprising at least one frequency or frequency band not in use; selecting a channel in the identified white space; identifying at the first wireless node a channel access factor for each of multiple wireless nodes including the first wireless node; determining if the first wireless node has a specified channel access factor; and transmitting data from the first wireless node on the channel when the first wireless node has the specified channel access factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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a spectrum sensing unit configured to identify a white space, the white space comprising at least one frequency or frequency band not in use; a channel selection unit configured to identify a channel access factor for each of multiple wireless nodes, the wireless nodes including the apparatus, the channel selection unit also configured to determine if the apparatus has a specified channel access factor; and a control unit configured to control transmission of data from the apparatus on a channel in the identified white space depending on whether the apparatus has the specified channel access factor. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A computer program embodied on a computer readable medium, the computer program comprising:
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computer readable program code for identifying a white space at a first wireless node, the white space comprising at least one frequency or frequency band not in use; computer readable program code for selecting a channel in the identified white space; computer readable program code for identifying at the first wireless node a channel access factor for each of multiple wireless nodes including the first wireless node; computer readable program code for determining if the first wireless node has a specified channel access factor; and computer readable program code for initiating transmission of data from the first wireless node on the channel when the first wireless node has the specified channel access factor. - View Dependent Claims (18, 19, 20)
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Specification