DISTRIBUTED ANTENNA DEVICE AND INTERFERENCE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To avoid an influence of an uplink interference signal from other systems, in a distributed antenna system.SOLUTION: In order to obtain a substantially non-interference state in an uplink in the case of before delay correction where a desired signal from a slave connection terminal is received at a timing faster than that of an interference signal transmitted by other system connection terminal and a sufficient SINR cannot be obtained, a delay correction amount A for preventing or reducing interference is calculated by a distributed antenna system and a timing of transmission is notified to the terminal from a base station. The terminal transmits an uplink signal in a first-out manner at a timing taking into account the delay correction amount A for avoiding interference.SELECTED DRAWING: Figure 2