Method and apparatus for unlicensed band operation

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least:
• receive an operation mode indication, wherein the operation mode indication comprises an indication of 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;
• cause an interfered ratio report to be transmitted, wherein the interfered ratio report is calculated as a total number of interfered symbols over a sensing period;
• determine whether to operate as at least one of a primary user or a secondary user based on the interfered ratio report;
• and
• determine whether to operate during the primary transmission mode period of operation, the secondary transmission mode period of operation, and the idle mode period of operation.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least:
• cause 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;
• receive an interfered ratio report from the mobile terminal, wherein the interfered ratio report is calculated as a total number of interfered symbols over a sensing period;
• and
• cause 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
• cause the classification to be transmitted to the mobile terminal, wherein the mobile terminal is configured to operate during the primary transmission mode period of operation, the secondary transmission mode period of operation, and the idle mode period of operation based on the classification.