CONCENTRIC CELL HANDOVER AND ASSIGNMENT ALGORITHMS
Original Publication Date: 1996-Nov-01
Included in the Prior Art Database: 2002-May-01
With the rapid growth of cellular systems, such as time division multiplexed communication systems, it is becoming increasingly difficult to provide suffi- cient capacity in busy city centers using conventional frequency reuse techniques. Bearing in mind the lim- ited (and fixed) spectrum available to each commu- nication system operator, novel frequency planning techniques must be employed by system operators if these operators are to provide sufficient capacity to support high volumes of traffic (per square kilometer) in densely populated (city) environments. One such technique is the use of a concentric cell system in which different frequency re-use patterns may be employed between a macro (upper) level and a concentric (lower) level. However, in order to use the concept of concentric cells effectively, new handover and assignment algorithms need to be developed.