Patent ID: 6611685
Filing Date: 2003-08-26
Classification: H04W

Abstract:
A method of home location register (HLR) fault recovery in a wireless telecommunication system having a home network and a visited network, said home network including said HLR, and said visited network including at least one visitor location register (VLR) and a gateway location register (GLR) through which the VLRs and the HLR communicate, said method comprising the steps of:receiving by the GLR, a first reset message from the HLR, wherein the first reset message contains a home location register number for the HLR; determining by the GLR, which mobile subscribers in the visited network are associated with the HLR; sending a second reset message from the GLR to the VLRs where mobile subscribers associated with the HLR are located; receiving by the GLR, updated location messages from the VLRs for the mobile subscribers associated with the HLR; and forwarding from the GLR to the HLR, the updated location messages for the mobile subscribers associated with the HLR.