Aggregation of resources in enhanced control channels

摘要

Time-frequency resources in a single PRB pair are used for both frequency-localized transmissions as well as distributed transmissions. A first control message is transmitted (2710) to a first user equipment (UE) using a first PRB pair, using first subsets of resource elements that are aggregated in a frequency-localized manner and that are transmitted using a single antenna port. A second control message to a second UE is simultaneously transmitted (2710), also using the first PRB pair, using second subsets of resources that are aggregated in a frequency-distributed manner across the first PRB pair and one or more additional PRB pairs and that are transmitted using at least two antenna ports, including the single antenna port used to transmit the symbols in the first non-overlapping subsets of resource elements.

主权项

1. A method for transmitting downlink control information in a radio communication system, the method comprising:
transmitting a first control message to a first user equipment (UE) in a first subframe and using a first Physical Resource Block (PRB) pair, wherein said first control message is divided among two or more first non-overlapping subsets of resource elements, at least one of which is in the first PRB pair, wherein the two or more first non-overlapping subsets of resource elements are aggregated in a frequency-localized manner within at least the first PRB pair, and wherein symbols in the two or more first non-overlapping subsets of resource elements are transmitted using a single antenna port; and transmitting a second control message to a second UE, also in the first subframe and also using the first PRB pair, wherein said second control message is divided among two or more second non-overlapping subsets of resource elements, at least one of which is in the first PRB pair, wherein the two or more second non-overlapping subsets of resource elements are aggregated in a frequency-distributed manner across the first PRB pair and one or more additional PRB pairs, and wherein symbols in at least two of the two or more second non-overlapping subsets of resource elements are transmitted using differing antenna ports, said differing antenna ports including the single antenna port used to transmit the symbols in the two or more first non-overlapping subsets of resource elements.