Exploiting hybrid-channel information for downlink multi-user scheduling

摘要

A method for determining an optimal network utilization maximization in a communication system with wireless links in which current and coarse channel state information CSI is available from all users, along with a limited amount of fine CSI by way of a frame based entails a scheduling and feedback under which a virtual queue is associated with each user with virtual rates being determined at start of each frame and policy of each frame being determined by solving a decision process.

主权项

1. A method comprising steps:
determining an optimal network utilization maximization in a communication system with wireless links in which current and coarse channel state information CSI is available from all users, along with a limited amount of fine CSI by way of a frame based scheduling and feedback under which a virtual queue is associated with each user with virtual rates being determined at start of each frame and policy of each frame being determined by solving a decision process, said determining comprising:
initializing an index indicative of an interval, a system state and control parameters;if the interval is not the start of a frame then:
determining action for current interval using system state for current interval and state action frequencies computed for the current frame;performing action for current interval;updating virtual queues and incrementing the interval index;updating system state for the current intervalwherein the system state at any interval consists of coarse channel estimates reported by all users for that interval, the system state includes for each possible pair of users, the fine and coarse channel estimates from both users in that pair for the recent-most prior interval on which that user pair was scheduled and the index of that interval and wherein the above steps are carried out by computer processing.