ation size): 5 MHz 0 in 2 most significant bits + 9 bits for resource index; 10 MHz 11 bits for resource index; 20 MHz 11 bits for resource index. Long TTI Indicator The number of subframes spanned by the allocated resource: Obo 1 subframe (default); Ob1 4 DL subframes for FDD or all DL subframes for TDD. HARQ Feedback Index for HARQ Feedback Allocation to acknowledge receipt of de- Allocation allocation A-MAP IE. SizeOffset Offset used to compute burst size index. MIMO Encoder MIMO encoder format: Format Ob00 SFBC; 0b01 Vertical encoding; Ob10 Multi-layer encoding; Ob11 CDR. Number of streams in transmission less than or equal to the number of transmit antennas at the BS (1 to 8 streams). Index to identify the combination of the number of streams and the allocated pilot stream index in a transmission with MU-MIMO and the modulation constellation of paired user in the case of dual- stream transmission. Number of ACIDs Number of ACIDs for implicit cycling of HARQ channel identifier (2,3,4,8). Initial_ACID Initial value of HARQ channel identifier for implicit cycling of HARQ channel identifiers. The MS also sends feedback for other MIMO feedback modes using MAC control messages. The coefficients of the quantized transmit correlation matrix are fed back in the Correlation Matrix Feedback Header (CMFH) when no AAI_SingleBS_MIMO_FBK message is sent in the same packet and the BS has two or four transmit antennas; otherwise, the coefficients of the quantized transmit correlation matrix are sent in an AAI_SingleBS_MIMO_FBK message. The coefficients of the quantized transmit correlation matrix are fed back in an AAI_SingleBS_MIMO_FBK message, when the BS has eight transmit antennas. If the transmission of the transmit correlation matrix is previously scheduled and the MS has long-term feedback allocations, then the previous feedback allocation for the transmit correlation matrix is de-allocated with Feedback Polling A-MAP IE. In the case of 10.2 Downlink control channels Table 10-11 DL Persistent Allocation A-MAP IE Param