allocation of all 4 SLRUs within a particular sub-band, as illustrated in Figure 10-9. The j-bit positions in the CRIF for NSB j are set to 0. The structure of a UL Sub-band Assignment A-MAP IE is similar to the UL Basic Assignment A-MAP IE except the Resource Index fields are different and the IE Type field is set to 0b0011. The Resource Allocation field contains 11 bits for all operating bandwidths. The pre-processing steps are the same as those defined for the DL Sub-band Assignment A-MAP IE, except all DL terms are replaced by their UL equivalents. For the UL Sub-band Assignment A-MAP IE, a single IE is used to indicate a single instance of an allocation in all cases. The RA field interpretation is different from the downlink counterpart. If 0 < NSB < 3 each of the j-bit positions in the RA field 0 < j < 11 indicates the allocation or non-allocation of particular SLRU indices using a bitmap as shown in Table 10-6. When 4 < NSB < 10, the RA field is interpreted in the same manner as in the 5 < NSB < 10 case in the DL Sub-band Assignment A-MAP IE by the MS and the BS. Furthermore, if 11 < NSB < 21, the MS and the BS's understanding of the RA field is the same as that in the 11 < NSB 21 with Mode-Indicator = 0b0. The Feedback Allocation A-MAP IE is used for dynamic allocation or de-allocation of uplink fast-feedback channels assigned to a mobile station. If an MS (with an existing fast-feedback channel corresponding to an active downlink carrier) receives a new allocation for a feedback channel on the same active carrier, the original fast-feedback channel is automatically de-allocated. The parameters of the Feedback Allocation A-MAP IE are listed in Table 10-7. In Table 10-7 if the Measurement Method Indication flag is 0b0, then using a suitable MIMO feedback mode which can support MU-MIMO, (the MS is informed that) the maximum number of users that are going to be scheduled in the next MU-MIMO allocations is equal to N5. Based on this information, the MS calculates and includes the multi-user interference in th