Apparatus and method for allocating frequency resources in a frequency overlay system

A method for receiving allocated frequency resources by a Mobile Station (MS) in a frequency overlay system, the method comprising:

• receiving zone information indicating a frequency resource available for each zone from a Base Station (BS);
• receiving resource allocation information indicating an allocated frequency resource, which is unicast to at least one MS to which the frequency resource is allocated, among a plurality of MSs which are grouped based on zones;
• and
• communicating with the BS using the allocated frequency resource indicated by the resource allocation information, within the frequency resource indicated by the zone information,
• wherein the BS groups the plurality of MSs based on the zones, each zone including a plurality of MSs capable of using a same frequency set, and
• wherein at least one Frequency Allocation (FA) of a frequency set related to one zone overlaps with at least one FA of a frequency set related to another zone.

A method for allocating frequency resources by a Base Station (BS) in a frequency overlay system, the method comprising:

• grouping a plurality of Mobile Stations (MSs) based on zones, each zone including at least one MS capable of using a same frequency set;
• transmitting zone information indicating a frequency resource available for each zone only to MSs belonging to a related zone;
• unicasting resource allocation information indicating an allocated frequency resource to at least one MS to which the frequency resource is allocated, among the MSs which belong to the related zone;
• and
• communicating with the at least one MS using the allocated frequency resource indicated by the resource allocation information, within the frequency resource indicated by the zone information,
• wherein at least one Frequency Allocation (FA) of a frequency set related to one zone overlaps with at least one FA of a frequency set related to another zone.

A method for allocating frequency resources by a Base Station (BS) in a frequency overlay system, the method comprising:

• determining whether at least two Mobile Stations (MSs) of a plurality of MSs are capable of using an identical set of at least one Frequency Allocation (FA);
• grouping the at least two Mobile Stations (MSs) that are determined to be capable of using the identical set of at least one FA into a zone;
• multicasting zone information indicating a frequency resource available to the zone to the at least two MSs belonging to the zone;
• unicasting resource allocation information indicating an allocated frequency resource to at least one MS to which the frequency resource is allocated, among the MSs which belong to the related zone;
• and
• communicating with the at least one MS using the allocated frequency resource indicated by the resource allocation information, within the frequency resource indicated by the zone information,
• wherein a set of at least one FA related to one zone overlaps with a set of at least one FA related to another zone.