METHODS AND SYSTEMS FOR PDCCH BLIND DECODING IN MOBILE COMMUNICATIONS

摘要

Various methods and systems for efficiently performing the blind decoding of downlink signals are described. Several forms of arranging possible CCE combinations are examined and investigated. Based on PDCCH size estimation/information, CCE concatenations that are most likely (of limited sets) can be arrived at. Tree-based concatenations are also devised using largest CCE ordering to align smaller CCE sizes to similar boundaries. By such ordering, the search space for all possible CCE ordering and sizes can be reduced to an efficient tree. Set mapping between possible CCE/REs are also described using a first set to secondary and tertiary sets. Various other o'rdering and sorting schemes are also detailed that enable a blind decode of a PDCCH channel to be efficiently performed.