System and method for implementing multiple home location registers for a single mobile station in a cellular telecommunications network
First Claim
1. In a radio telecommunication system having a home network associated with a mobile station, a foreign network, and a plurality of home location registers, wherein each HLR has a database for storing information relating to assigned mobile stations, a method of completing a call to said mobile station while said mobile station operates in said foreign network without incurring long distance charges, said method comprising the steps of:
- assigning a single mobile subscriber number (MSNB) which is a member of a MSNB series and a first subscriber number (SNB) to the mobile station;
defining the MSNB series and first SNB in the database of a first HLR, wherein the first HLR is associated with the home network, said home network having a mobile switching center (MSC);
assigning a second SNB to the mobile station;
defining the single MSNB and the second SNB in the database of a second HLR, wherein the second HLR is associated with a first visited foreign network, said first visited foreign network having a visited mobile switching center (V-MSC);
receiving an incoming call for the mobile station, said incoming call utilizing the second SNB;
interrogating the second HLR for database information related to said mobile station; and
routing the incoming call to the mobile station.
1 Assignment
0 Petitions
Accused Products
Abstract
In a cellular telecommunication network utilizing home location registers for completion of calls to and from a mobile station, a system and method is disclosed for loading and accessing database information relating to the mobile station, and completing calls to the mobile station while roaming in a visited foreign network without incurring long distance charges. The radio telecommunication system includes a mobile station having a mobile subscriber number (MSNB) and a first subscriber number (SNB), a home network having a mobile switching center (MSC) and a first home location register (HLR) which maintains database information relating to the mobile station, and a visited foreign network having a visited mobile switching center (V-MSC) and a second HLR. When the mobile station roams into the visited foreign network, a second SNB is assigned to the MSNB, and subscriber information is stored in the second HLR. When a call is received for the mobile station on the second SNB, the V-MSC accesses the second HLR for subscriber information and completes the call locally to the mobile station.
-
Citations
12 Claims
-
1. In a radio telecommunication system having a home network associated with a mobile station, a foreign network, and a plurality of home location registers, wherein each HLR has a database for storing information relating to assigned mobile stations, a method of completing a call to said mobile station while said mobile station operates in said foreign network without incurring long distance charges, said method comprising the steps of:
-
assigning a single mobile subscriber number (MSNB) which is a member of a MSNB series and a first subscriber number (SNB) to the mobile station; defining the MSNB series and first SNB in the database of a first HLR, wherein the first HLR is associated with the home network, said home network having a mobile switching center (MSC); assigning a second SNB to the mobile station; defining the single MSNB and the second SNB in the database of a second HLR, wherein the second HLR is associated with a first visited foreign network, said first visited foreign network having a visited mobile switching center (V-MSC); receiving an incoming call for the mobile station, said incoming call utilizing the second SNB; interrogating the second HLR for database information related to said mobile station; and routing the incoming call to the mobile station. - View Dependent Claims (2, 3, 4)
-
-
5. In a radio telecommunication system having a home network associated with a mobile station, a foreign network, and a plurality of home location registers, wherein each HLR has a database for storing information relating to assigned mobile stations, a method of completing a call to said mobile station while said mobile station operates in said foreign network without incurring long distance charges, said method comprising the steps of:
-
assigning a single mobile subscriber number (MSNB) which is a member of a MSNB series and a first subscriber number (SNB) to the mobile station; defining the MSNB series and first SNB in the database of a first HLR, wherein the first HLR is associated with the home network, said home network having a mobile switching center (MSC); assigning a second SNB to the mobile station; defining the single MSNB and the second SNB in the database of a second HLR, wherein the second HLR is associated with a first visited foreign network, said first visited foreign network having a visited mobile switching center (V-MSC); receiving an incoming call for the mobile station; determining whether said incoming call is on the first SNB or the second SNB; establishing the incoming call to a MSC in the home network and interrogating the first HLR for information regarding said mobile station upon determining that said incoming call is on the first SNB; utilizing the V-MSC to interrogate the second HLR for information regarding said mobile station upon determining that said incoming call is on the second SNB; and routing the incoming call to the mobile station.
-
-
6. In a radio telecommunications network, a system for completing an incoming call to a mobile station operating in a visited foreign network without incurring long distance charges, said system comprising:
-
a mobile station having a mobile subscriber number (MSNB) and a first subscriber number (SNB), said MSNB being one of a plurality of MSNBs associated with a mobile subscriber number series (MSNB series); a home network associated with said mobile station, said home network having a mobile switching center (MSC) and a first home location register (HLR), wherein said first HLR is assigned the MSNB series and maintains database information relating to said mobile station; a visited mobile switching center (V-MSC) located in a first visited foreign network, said V-MSC being associated with a second HLR; means for loading database information relating to said mobile station in said second HLR; means for directing said V-MSC to access said second HLR for said database information relating to said mobile station; and means for completing said call locally within said visited foreign network. - View Dependent Claims (7, 8)
-
-
9. In a radio telecommunications network, a system for completing an incoming call to a mobile station operating in a visited foreign network without incurring long distance charges, said system comprising:
-
a mobile station having a mobile subscriber number (MSNB) and a first subscriber number (SNB), said MSNB being one of a plurality of MSNBs associated with a mobile subscriber number series (MSNB series); a home network associated with said mobile station, said home network having a mobile switching center (MSC) and a first home location register (HLR), wherein said first HLR is assigned the MSNB series and maintains database information for said mobile station; a plurality of visited foreign networks, each of said foreign networks having a visited mobile switching center (V-MSC) and an associated visited HLR; means for loading database information relating to said mobile station in each said visited HLR; means for directing the V-MSC of each said visited foreign network to access its associated visited HLR for said database information relating to the mobile station; and means for completing said call locally within said visited foreign network. - View Dependent Claims (10, 11)
-
-
12. In a radio telecommunication system, a method of originating a call from a mobile station roaming in a foreign network, and completing said call to a local number in said foreign network without incurring long distance charges, said radio telecommunication system having a home network associated with said mobile station, and a plurality of home location registers, wherein each HLR has a database for storing information relating to assigned mobile stations, said method comprising the steps of:
-
assigning a single mobile subscriber number (MSNB) which is a member of a MSNB series and a first subscriber number (SNB) to the mobile station; defining the MSNB series and first SNB in the database of a first HLR, wherein the first HLR is associated with the home network, said home network having a mobile switching center (MSC); assigning a second SNB to the mobile station; defining the single MSNB and the second SNB in the database of a second HLR, wherein the second HLR is associated with a first visited foreign network, said first visited foreign network having a visited mobile switching center (V-MSC); originating a call from the mobile station to a local telephone number in the V-MSC, said call utilizing the second SNB; and routing the call to the local telephone number.
-
Specification