Method and system for minimizing call setup delay for calls occurring in one or more wireless networks
First Claim
1. An automated method for minimizing call setup delay for a call in a plurality of communication networks having different wireless networks having different wireless technologies associated with the respective networks, wherein the plurality of communication networks includes a central node connected to a number portability database, the method comprising:
- triggering a first query to the central node for information for routing the call when a request for setting up the call is received by a switching unit, wherein a plurality of tables are available to the central node to respond to the query, if appropriate, and route the call, and wherein the central node communicates with the plurality of communication networks using a plurality of protocols;
triggering a second query from the central node to a home location register for the routing information in order to set up the call, wherein the second query is only triggered if a location routing number is not found in a second table; and
triggering a third query from the central node to the number portability database, wherein the number portability database contains a database containing information on each of the wireless networks having different technologies needed for a call set-up procedure, for the routing information if the second query fails to provide the routing.
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Abstract
Provided is a method and system for minimizing call setup delay in a network. The system includes a central node that may be connected to multiple home location registers (HLRs) and a number portability database (NPDB). The central node may also be associated with two tables. The first table includes mobile station identifiers and associated location routing numbers (LRNs), and the second table includes mobile station identifiers and associated home location registers (HLRs). The method searches the first and second tables for a mobile station identifier that matches a mobile station identifier associated with a call. If a match is found, the method uses the associated LRN or HLR to continue with the call setup or to obtain further information. If no match is found, the method sends a query to the NPDB. The method may also dynamically update the first and second tables as current information is obtained.
46 Citations
10 Claims
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1. An automated method for minimizing call setup delay for a call in a plurality of communication networks having different wireless networks having different wireless technologies associated with the respective networks, wherein the plurality of communication networks includes a central node connected to a number portability database, the method comprising:
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triggering a first query to the central node for information for routing the call when a request for setting up the call is received by a switching unit, wherein a plurality of tables are available to the central node to respond to the query, if appropriate, and route the call, and wherein the central node communicates with the plurality of communication networks using a plurality of protocols; triggering a second query from the central node to a home location register for the routing information in order to set up the call, wherein the second query is only triggered if a location routing number is not found in a second table; and triggering a third query from the central node to the number portability database, wherein the number portability database contains a database containing information on each of the wireless networks having different technologies needed for a call set-up procedure, for the routing information if the second query fails to provide the routing. - View Dependent Claims (2, 3, 4, 5)
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6. An automated telecommunications system, wherein the system includes different wireless networks having different technologies associated with the respective networks, adapted for minimizing call setup delay for a call associated with a first mobile station identifier, the system comprising:
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a plurality of home location registers (HLRs); a central node in communication with the HLRs, wherein the central node is in communication with a number portability database wherein the number portability database contains information on each of the wireless networks having different technologies needed for a call set-up procedure, and wherein the central node communicates with different wireless networks using a plurality of protocols; a first table accessible to the central node, wherein the first table contains a plurality of mobile station identifiers and associated location routing numbers; a second table accessible to the central node, wherein the second table contains a plurality of mobile station identifiers, wherein each identifier is associated with one of the HLRs; and instructions adapted for execution by the central node, the instructions including; instructions for searching the first table for a second mobile station identifier that matches the first mobile station identifier and sending a query to a network entity identified by the associated location routing number if a match is found; and instructions for searching the second table for a second mobile station identifier that matches the first mobile station identifier and sending a query to the associated HLR if a match is found. - View Dependent Claims (7, 8, 9, 10)
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Specification