528 CHAPTER 10 The IEEE 802.16m Physical Layer (Part II) Table 10-15 Broadcast Assignment A-MAP IE Parameters [2] Parameter A-MAP IE Type Function Index Burst Size Resource Index Size (Bits) 4 1 6 11 Description Broadcast A-MAP IE. 0 This IE carries broadcast assignment information; 1 This IE carriers ranging channel allocation information. Burst size as indicated in the first 39 entries of Table 9-6. Resource index includes location and allocation size: 5 MHz 0 in the 2 most significant bits þ 9 bits for resource index; 10 MHz 11 bits for resource index; 20 MHz 11 bits for resource index. Indicates number of subframes spanned by the allocated resource: 0b0 1 subframe (default); 0b1 4 DL subframes for FDD or all DL subframes for TDD. 0b0 no time-domain repetition; 0b1 with time-domain repetition. 0b00 no more repetition of the same burst; 0b01 the same burst is transmitted one time; 0b10 the same burst is transmitted two times; 0b11 the same burst is transmitted three times. ­ ­ Long TTI Indicator 1 Transmission Format Repetition 1 2 Number of Ranging Opportunities Subframe Index 2 3 will be completed at the (k þ n)th frame. The value of the repetition parameter is decremented in each transmission. For other information element's fields, only the resource index may change during the period when the time-domain repetition is performed. The HARQ sub-packet identifier is always set to zero for broadcast burst transmission. 10.3 UPLINK CONTROL CHANNELS Multiple types of control and signaling information are carried via uplink control channels in order to support various air interface procedures. The uplink control information is categorized into the following: Primary Fast-Feedback Channel; Secondary Fast-Feedback Channel; HARQ Feedback (ACK/NACK) Channel; Bandwidth Request (BW-REQ) Channel; Initial, Periodic, and Handover Ranging Channel; Sounding Channel. Channel quality feedback provides information about channel conditions as seen by the mobile station. This information is used by the BS for link adaptation, resource allocation, power control, etc. The channel quality measurement includes narrowband and wideband measurements. The channel quality