Method of scanning cells based on lbs information and selecting heterogeneous cells

A method of scanning heterogeneous cells in order to perform cell selection or handover between the heterogeneous cells, the method comprising:

• at a mobile station, setting a supplementary field of a registration request message and notifying a base station whether or not handover based on location information is supported, while performing a network entry process;
• generating location based service (LBS) information while scanning is performed using the coordinates of base stations included in an LBS advertisement message received from the base station, if channel quality measured by the mobile station is less than a threshold value;
• including the generated LBS information in a scanning request message, transmitting the scanning request message to the base station, and receiving recommended base station information of the heterogeneous cells selected based on the LBS information from the base station;
• and
• performing the scanning on the basis of the recommended base station information.

A method of selecting heterogeneous base station in order to support cell selection or handover between the heterogeneous cells, the method comprising:

• including the coordinates of base stations in a location based service (LBS) advertisement message and transmitting the LBS advertisement message to a mobile station, when it is determined that handover based on location information is supported from a supplementary field of a registration request message received from the mobile station;
• receiving the LBS information generated while scanning is performed using the coordinates of the base stations from the mobile station via a scanning report message of the mobile station;
• and
• transmitting recommended base station information generated by selecting the base stations of the heterogeneous cells based on the LBS information to the mobile station.

A method of selecting heterogeneous base station in order to support cell selection or handover between the heterogeneous cells, the method comprising:

• including the coordinates of base stations in a location based service (LBS) advertisement message and transmitting the LBS advertisement message to a mobile station, when it is determined that handover based on location information is supported from a supplementary field of a registration request message received from the mobile station;
• receiving the LBS information generated while scanning is performed using the coordinates of the base stations from the mobile station via a scanning request message of the mobile station;
• and
• transmitting recommended base station information generated by selecting the base stations of the heterogeneous cells based on the LBS information to the mobile station.