| 摘要 |
Methods and apparatuses for schedule transmissions between a base station and multiple user stations includes dividing a transmit time interval (TTI), in some embodiments referred to as a ''frame'', into a plurality of portions or subchannel sets. The scheduler may optimize the assignment of users to spectrum within each subchannel set, per-user power and/or beamforming coefficients for each subchannel set only once over a limited number of contiguous TTIs. A next subchannel set may then be optimized at the next TTI. However, optimization of the modulation and coding scheme (MCS) for each subchannel set may be performed more often, for example, every TTI. Additional embodiments and variations are also disclosed. |
