Patent ID: 6144857
Filing Date: 2000-11-07
Classification: H04W

Abstract:
A method of processing subscriber information requests in a cellular communications network incorporating a first, primary home location register and a second, auxiliary home location register, each said home location register providing data storage exclusively for a respective set of subscribers, each said subscriber being allocated to either one or the other of the primary and auxiliary home locations registers, the method including routing every said request directly to the primary home location register irrespective of which of the primary or auxiliary home location registers contains data relating to the particular subscriber for whom the request is being made, responding to the request from the primary home location register to the request when the subscriber data relating to that request is stored on the primary home location register, and, when the subscriber data is not stored on the primary home location register, forwarding the request from the primary home location register to the auxiliary home location register so as to respond to that forwarded request directly from the auxiliary home location register.