Enabling operation of both cellular and wireless local area network (WLAN) on a shared unlicensed frequency band by a method including: causing a primary transmission mode period of operation, a secondary transmission mode period of operation, and an idle mode period of operation on an unlicensed frequency band to be transmitted to a mobile terminal; receiving an interfered ratio report from the mobile terminal; causing the mobile terminal to be classified as at least one of a primary user or a secondary user based on the interfered ratio report, and causing the classification to be transmitted to the mobile terminal. The primary transmission mode may allow the mobile terminal to operate normally without interference coordination with another user of the unlicensed band; secondary transmission mode may enable operation on predefined resources of the unlicensed band; and idle mode may prevent any transmission on the unlicensed band.
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