US 8,285,295 B2 · Dynamic frequency band allocation between radio communication networks

Abstract

The present invention relates to cellular communications and in particular to a frequency spectrum shared by two cellular networks. The object is flexible utilization of the spectrum. This is achieved by a method wherein a first of the networks occupies part of the shared spectrum in relation to the traffic load in the first network. The first network informs a second of the networks on the extent the shared spectrum is occupied, for the second network to be free to use the shared spectrum outside the occupied part. The invention also relates to a RRM unit arranged for carrying out the inventions, to a BSC and to a radio base station adapted for carrying out the method. One advantage is that spectrum can be lent from an old system when a new system is introduced.

Claims16

Dependent claims

A method of controlling utilization of a frequency spectrum shared by first and second radio networks that each include one or more radio resource manager (RRM) units for controlling radio resource management in one or more cells, comprising:

occupying a first part of the shared frequency spectrum for use in one or more cells in the first radio network that are controlled by a first RRM unit, wherein the occupied first part is in relation to a traffic load in the one or more cells controlled by the first RRM unit;
and
informing a second RRM unit in the second radio network of the first part of the shared frequency spectrum, for the second RRM unit to be free to use the shared frequency spectrum outside the first part in one or more cells controlled by the second RRM.

Dependencies are inferred from the claim text.

Dynamic frequency band allocation between radio communication networks

Life of this patent

Dynamic frequency band allocation between radio communication networks

Life of this patent

Abstract

Claims16