Patent ID: 6985736
Filing Date: 2006-01-10
Classification: H04W

Abstract:
1. A cellular radio network including allocated radio frequencies reused in cells, comprising: said allocated radio frequencies being divided into regular radio frequencies for which lower frequency reuse is utilized to achieve a seamless overall coverage, and super-reuse frequencies to which high frequency reuse is applied to provide a high traffic carrying capacity; at least one of said cells being a regular cell having both at least one regular frequency and at least one super-reuse frequency, so that said at least one regular frequency is intended to serve primarily in cell boundary regions and said at least one super-reuse frequency is intended to serve primarily in the vicinity of a base station, one of the regular frequencies being a BCCH frequency of the regular cell; and at least one microcell wherein all frequencies are super-reuse frequencies one of which is a BCCH frequency of the microcell; a controller which controls traffic load distribution in a regular cell between said at least one regular and said at least one super-reuse frequency by intra-cell handovers induced by estimated interference on said at least one super-reuse frequency, and which controls traffic load distribution between the regular cell and said microcell by inter-cell handovers based on estimated interference on at least one super-reuse frequency in the microcell.