n and permutation 1. Each 2 X 6 reordered FMT is divided into three serially-indexed 2 2 HMTs. The HMTs are numbered from 0 to 3 X LHFB-FPi 1; 2. A reordering is applied to the HMTs to obtain the reordered HMTs; 3. Each group of three consecutive reordered HMTs forms a pair of HARQ feedback channels. In FDD mode, there is one HARQ feedback region in each UL subframe. In TDD mode, the HARQ feedback channel in the UL subframe L may be associated with the DL bursts in several DL subframes whose indices are denoted by M = {mo, m1, MK 1}, where mo m1 < MK 1. number HARQ feedback regions is equal to the size of set M. For DL bursts starting at subframe Mk, the index of the associated HARQ feedback region is in the order of mk in set M, with index zero corresponding to the first HARQ feedback region. Within each HARQ feedback region, the index for the HARQ feedback channel is calculated as follows. For persistent allocation, the index k is specified in the DL Persistent Allocation A-MAP IE. A primary or secondary fast-feedback channel consists of one feedback channel, which is allocated after the HARQ feedback regions. In TDD systems, when the legacy mobile stations are supported in the uplink using a legacy UL- PUSC subchannelization scheme, the new and legacy uplink regions are frequency-division multi- plexed and a new tile structure is used for the new resource allocations. The uplink tile consists of four consecutive sub-carriers over six OFDM symbols. The partitioning of the transmission bandwidth between the legacy and new systems is dynamic; however, the size of the frequency regions is not frequently changed, since the variation in bandwidth of the legacy uplink control channels requires signaling through the legacy uplink channel descriptor which is sent every second. The sub-carriers of an OFDM symbol are grouped into Ng-left left-guard sub-carriers, Ng-right right-guard sub-carriers, and Nused data/pilot sub-carriers. The DC sub-carrier is not used. The Nused sub-carriers are divided into multiple UL-PUSC ti