Cellular frequency reuse cell plan
September 21, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3898390 Antenna array for a cellular RF communications system Mobile communication system and method employing frequency reuse within a geographical service area Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radio telephones in a cellular radiotelephone communications system Load balancing for cellular radiotelephone system Cellular communication system sharing control channels between cells to reduce number of control channels Method and apparatus for making frequency channel assignment in a cellular or non-cellular radiotelephone communications system Private cellular system Patent #: 4771448 InventorAssigneeApplicationNo. 508921 filed on 04/12/1990US Classes:455/447, Frequency reuse scheme455/449Hierarchical cell structureExaminersPrimary: Eisenzopf, Reinhard J.Assistant: Faile, Andrew Attorney, Agent or FirmInternational ClassesH04Q 007/00H04M 011/00 AbstractA frequency reuse plan for a cellular radio communications system includes a plurality of antenna sites which implement twelve groups of frequencies among four antenna sites. The same frequencies are reused by other groups of four antenna sites. Each antenna site serves three hexagon shaped cells arranged in a clover-leaf shaped pattern by three groups of antennas, each of which group is separated by a pointing angle of 120 degrees. | |
