Media Access Control Scheme for a Multi-Frequency TDMA Network
First Claim
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1. A base station comprising:
- a transceiving system for receiving information from, and transmitting information to, at least one other base station and a plurality of remote devices; and
an apparatus in communication with the transceiving system and configured for determining a communication allocation to select ones of the plurality of remote devices, the apparatus comprising;
a processor in communication with a memory, the memory including code which when accessed by the processor causes the processor to;
obtain an available communication allocation from a reservation map of communication allocations associated with the base station, wherein the communication allocation comprises allocation of at least one frequency and at least one associated time slot;
receive a communication allocation mapping of each of the least one other base stations operating in cooperation with the base station;
determine a suitability of the obtained available communication allocation in view of communication allocations among the received communication allocation mappings;
provide an indication within the reservation map for indicating an assignment of the available communication allocation when the obtained available communication is determined to be suitable; and
provide an updated reservation map to each of the cooperating base stations.
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Abstract
A system for managing element management in an ad-hoc network is disclosed. The system employs a TDD/FDD communication protocol to allocate assignment of time/frequency slots to individual system elements. Time/frequency assignment is based on desired communication standards in conjunction with geographic mapping of adjacent stations to prevent interference between stations.
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Citations
11 Claims
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1. A base station comprising:
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a transceiving system for receiving information from, and transmitting information to, at least one other base station and a plurality of remote devices; and an apparatus in communication with the transceiving system and configured for determining a communication allocation to select ones of the plurality of remote devices, the apparatus comprising; a processor in communication with a memory, the memory including code which when accessed by the processor causes the processor to; obtain an available communication allocation from a reservation map of communication allocations associated with the base station, wherein the communication allocation comprises allocation of at least one frequency and at least one associated time slot; receive a communication allocation mapping of each of the least one other base stations operating in cooperation with the base station; determine a suitability of the obtained available communication allocation in view of communication allocations among the received communication allocation mappings; provide an indication within the reservation map for indicating an assignment of the available communication allocation when the obtained available communication is determined to be suitable; and provide an updated reservation map to each of the cooperating base stations. - View Dependent Claims (2, 3, 4, 5, 6, 10, 11)
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7. A method, operable in a base station, for determining a communication allocation among a plurality of base stations and remote terminals, the method comprising:
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receiving communication allocation information from cooperating ones of the plurality base stations; obtaining an available communication allocation from a reservation map of communication allocations, wherein the communication allocation comprises allocation of at least one frequency and at least one associated time slot, determining a suitability of the obtained available communication allocation in view of the received communication allocation information; providing an indication in the reservation map indicating an assignment of the obtained available communication allocation when the obtained available communication is determined to be suitable; and providing an updated reservation map to each of the cooperating base stations. - View Dependent Claims (8)
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9. A method, operable in a processing system, for determining cooperating base stations among a plurality of base stations which are in communication with a plurality of remote terminals, the method comprising:
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analyzing for each of the base stations a geometry of radio coverage and possible associated remote terminal locations; and assigning the first and second base stations as cooperative when a known blocking avoidance criteria is not satisfied, wherein the known blocking avoidance criteria is represented as;
D1/D2>
10(C/I)/Kwherein D1 represents the maximum distance from the first base to any remote terminal associated with the first base, D2 represents the minimum distance from the first base to any remote terminal associated with the second base; C/I represents a desired Carrier to Interference ratio; and K represents an RF propagation constant.
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Specification