Patent ID: 7986620

Claim:
A radio communication apparatus for transmitting data to a transmitting destination apparatus selected from a plurality of transmitting destination apparatuses using a shared channel and receiving a reception result from the transmitting destination apparatus, said radio communication apparatus comprising: a storage unit for storing priority sequence information indicative of a prioritized sequence for a plurality of transmitting destination apparatuses such that the radio communication apparatus receives a response signal from the transmitting destination apparatus associated with a high priority via data transmission over the shared channel; a control unit for selecting one transmission destination apparatus from the plurality of transmitting destination apparatuses, said selecting based at least in part on said priority sequence information and for enabling data transmission to the one transmitting destination apparatus, wherein said selecting performed by the control unit is realized by: first-selecting the one transmission destination apparatus from a first group included in the plurality of transmitting destination apparatuses, said first group of transmitting destination apparatuses having radio synchronization established; in the absence of any candidate transmitting destination apparatuses from said first group, second-selecting the one transmission destination apparatus from a second group included in the plurality of transmitting destination apparatuses, said second group of transmitting destination apparatuses having no radio synchronization established; and in the absence of any candidate transmitting destination apparatuses from said first and second groups, third-selecting the one transmission destination apparatus from the plurality of transmitting destination apparatuses in accordance with a priority sequence for High Speed Downlink Packet Access scheduling; and a path search unit for searching a path for the one transmitting destination apparatus selected by the control unit.