Patent ID: 7986613

Claim:
A subchannelization method comprising: partitioning an allocated bandwidth, by a base station in a cellular neighborhood, into a plurality of orthogonal fractional frequency reuse groups, wherein each fractional frequency reuse group comprises data sub-carriers and pilot sub-carriers; sub-dividing one of the plurality of orthogonal fractional frequency reuse groups into a first distributed group, the first distributed group comprising one or more clusters of pseudo-randomly distributed sub-carriers of the allocated bandwidth; and further sub-dividing the one of the plurality of orthogonal fractional frequency reuse groups into a localized group, the localized group comprising one or more clusters of contiguous sub-carriers of the allocated bandwidth, each cluster comprising at least one pilot sub-carrier modulated with pilot values and at least one data sub-carrier modulated with data, wherein the localized group comprises at least one pilot sub-carrier; wherein the one or more contiguous sub-carriers are available to a subscriber station for communication in the cellular neighborhood.