| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for facilitating mitigation of interference in the uplink of a small cell such as a picocell, caused by a user apparatus.SOLUTION: The smell cell provides a macrocell with a notification of the interference, the configuration information about the Physical Random Access Channel (PRACH), and a plurality of unique preambles and transmission times for non-contention-based transmissions on the small cell's PRACH. The macrocell orders each of one or a plurality of macrocell user apparatuses to transmit one of the unique preambles on the small cell's PRACH. The small cell reports to the macrocell the detected preamble transmissions, which allows the macrocell to identify an interfering user apparatus and perform corrective actions.SELECTED DRAWING: Figure 2 |
