METHOD AND SYSTEM FOR SCHEDULING USERS BASED ON USER-DETERMINED RANKS IN A MIMO SYSTEM

摘要

A method and a system for scheduling users based on user-determined ranks are provided to improve the communication efficiency in MIMO system. A rank selector(305) selects a rank to maximize the capacity of subscriber station(111). A CQI calculator(310) then calculates a CQI for each virtual antenna based on the selected rank. Pre-coding matrix selector(315) then selects a preferred pre-coding matrix based on the calculated CQIs. If multi-user mode is not set statically, multiple CQIs, their corresponding pre-coding vector identifiers, and the selected rank are included in the scheduling data. However, if multi-user mode is set statically, a maximum CQI, its corresponding pre-coding vector identifier, and the selected rank are included in the scheduling data. Scheduling data reporter(320) then reports the scheduling data to the base station providing service to subscriber station.