Patent ID: 8625556

Claim:
A signal interference handling method, adapted to a cellular system, wherein the cellular system comprises a macro/micro cell base station (MBS), a home base station (HBS), and a MBS-served mobile station (m-MS), the signal interference handling method comprising: detecting, at the m-MS, whether there is mutual interference; sending, at the m-MS, an interference mitigation (IM) request to the HBS when there is mutual interference; and the HBS entering a low duty mode (LDM) after the HBS receives the IM request; before the HBS enters the LDM, the HBS setting an activating-deactivating pattern and a LDM duration of a LDM setting, wherein the LDM duration is an operation time of the LDM, and the LDM activating-deactivating pattern represents an interlaced distribution of activating periods and deactivating periods in the LDM duration; detecting, at the HBS, whether the LDM duration is ended; the HBS returning to a normal mode or continually operating in the LDM when the LDM duration is ended; detecting, at the HBS, whether the IM request is received during the activating period when the LDM is not ended; the HBS continually operating in the LDM when the HBS does not receive IM request during the activating period; detecting, at the HBS, whether the LDM setting is required to be adjusted when the HBS receives IM request during the activating period; and when the LDM setting is required to be adjusted, the HBS reconfiguring the activating-deactivating pattern and the LDM duration, and entering the LDM with the latest LDM setting after the reconfiguration.