Radio apparatus, radio communication system, spatial path control method, and spatial path control program

摘要

In an MIMO mobile communication system allowing a PDMA base station to communicate with a single terminal through a plurality of paths the terminal and the base station are each responsive to information of communication quality of a spatial path detected as having a reception error to appropriately control switching the path's communication operation between a plurality of types of operations. In a first operation, only a single path remains and the other paths are disconnected. In a second operation, path diversity is effected. In a third operation, path's modulation level is reduced. These operations are performed by a DSP. If in the MIMO system paths' mutual interference occurs the terminal and base station can still maintain connection.