FRACTIONAL FREQUENCY REUSE SCHEMES ASSIGNED TO CLUSTERS OF RADIO NODES IN AN LTE RADIO ACCESS NETWORK
First Claim
1. A method of allocating frequencies in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes, the method comprising:
- dividing the radio nodes (RNs) in the RAN into a plurality of clusters of RNs;
generating a fractional frequency reuse (FFR) pattern for each cluster;
allocating transmission resources to the radio nodes in each cluster in accordance with the respective FFR pattern that is generated for each cluster.
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Abstract
Methods and systems are provided for allocating frequencies in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes. In accordance with the method, the radio nodes (RNs) in the RAN are divided into a plurality of clusters of RNs. A fractional frequency reuse (FFR) pattern is generated for each cluster. Transmission resources are allocated to the radio nodes in each cluster in accordance with the respective FFR pattern that is generated for each cluster.
29 Citations
44 Claims
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1. A method of allocating frequencies in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes, the method comprising:
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dividing the radio nodes (RNs) in the RAN into a plurality of clusters of RNs; generating a fractional frequency reuse (FFR) pattern for each cluster; allocating transmission resources to the radio nodes in each cluster in accordance with the respective FFR pattern that is generated for each cluster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A services node controlling a plurality of radio nodes (RNs) in a radio access network (RAN), the plurality of radio nodes communicating with a plurality of user equipment (UE) in the radio access network, comprising:
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a processor; a clustering module operatively associated with the processor, the clustering module being configured to divide radio nodes (RNs) in the RAN into a plurality of clusters of RNs; and a fractional frequency reuse allocation module operatively associated with the processor to compute and allocate transmission resources by generating a fractional frequency reuse (FFR) pattern for each cluster.
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Specification