Routing call to UMA-capable terminals using a geographic number
First Claim
1. A method of routing a call made to a fixed telephone number of a UMA-subscriber having at least one of a GSM/UMA subscription and a UMTS/UMA subscription, in a mobile telecommunications network comprising a first switching node and a service control entity, said method comprising:
- associating a Location Area Code (LAC) or a combination of a LAC and cell identifier (CI) with each Generic Access Network Controller (GANC) of a group of GANCs;
receiving, by said service control entity, a trigger message sent by said first switching node, said trigger message including said fixed number of said UMA-subscriber;
upon receiving a trigger message, acquiring location information of said UMA-subscriber either by said service control entity or by said first switching node, said location information comprising at least one of a LAC, and a combination of LAC and cell identifier (LAC+CI) associated with a serving BSC or one of said GANCs serving said UMA-subscriber; and
sending a connect message from the service control entity to the first switching node to connect the call to said UMA-subscriber when said LAC or said combination LAC+CI is associated with one of said group of GANCs.
1 Assignment
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Accused Products
Abstract
The invention relates to a method of routing a call made to a fixed telephone number of a UMA-subscriber in a mobile telecommunications network comprising a first and a second switching node and a location server. Location information of said UMA-subscriber is acquired wherein said location information comprises a location area code or a combination of location area code and cell identifier associated with a serving BSC or a serving GANC. The call is connected to the UMA-subscriber when the location area code or combination of location area code and cell identifier is associated with one of a group of GANCs, or connected to an alternative destination, such as a voicemail service, if the location area code or combination of location area code and cell identifier is not associated with said one of a group of GANCs. The methods described in the present invention disclosure allow for very efficient offering of UMA in combination with geographic numbers.
14 Citations
27 Claims
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1. A method of routing a call made to a fixed telephone number of a UMA-subscriber having at least one of a GSM/UMA subscription and a UMTS/UMA subscription, in a mobile telecommunications network comprising a first switching node and a service control entity, said method comprising:
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associating a Location Area Code (LAC) or a combination of a LAC and cell identifier (CI) with each Generic Access Network Controller (GANC) of a group of GANCs; receiving, by said service control entity, a trigger message sent by said first switching node, said trigger message including said fixed number of said UMA-subscriber; upon receiving a trigger message, acquiring location information of said UMA-subscriber either by said service control entity or by said first switching node, said location information comprising at least one of a LAC, and a combination of LAC and cell identifier (LAC+CI) associated with a serving BSC or one of said GANCs serving said UMA-subscriber; and sending a connect message from the service control entity to the first switching node to connect the call to said UMA-subscriber when said LAC or said combination LAC+CI is associated with one of said group of GANCs. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12, 13, 14)
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7. A method of routing a call made to a fixed telephone number of a UMA-subscriber having a GSM/UMA subscription or a UMTS/UMA subscription, in a mobile telecommunications network comprising a first switching node, a second switching node and a location server, said method comprising:
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associating a Location Area Code (LAC) or a combination of a LAC and cell identifier (Cl) with each Generic Access Network Controller (GANC) of a group of GANCs; receiving, at said location server, a MAP SRI message from said first switching node, said MAP-SRI message containing said fixed number of said UMA-subscriber; sending responsive to said MAP-SRI message a MAP PRN message from said location server to said second switching node; sending a UMA-specific LSA setting from said location server to said second switching node, said LSA setting indicating that the call to the UMA-subscriber is restricted to UMA access; receiving a MAP PRN response message at said location server from said second switching entity responsive to said request message; and sending a MAP-SRI response message to said first switching node to connect the call to said UMA-subscriber using a roaming number provided in said MAP PRN response message when said LAC or said combination LAC+CI is associated with one of said group of GANCs. - View Dependent Claims (8, 9, 10, 15)
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16. A service control entity for providing intelligent network services to users of a mobile telecommunications network, said mobile telecommunications network comprising a first switching node, a second switching node, a location server and a group of Generic Access Network Controllers, GANCs, each having its associated Location Area Code (LAC), said service control entity comprising:
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a processing unit; an input unit connected to the processing unit; and an output unit connected to the processing unit; wherein said service control entity being connectable to said first switching node and to said location server, and wherein said processing unit is arranged to; associating a Location Area Code (LAC) or a combination of a LAC and cell identifier (CI) with each Generic Access Network Controller (GANC) of a group of GANCs; receive a trigger message from said first switching node via said input unit, said trigger message including said fixed number of said UMA-subscriber; receive location information of a UMA-subscriber via said input unit, said location information comprising at least one of a location area code (LAC) and a combination of location area code and cell identifier (LAC+CI) associated with a serving BSC or a serving GANC; and send, via said output unit, a connect message to said first switching node in order to connect the call to said UMA-subscriber when said LAC or said combination LAC+CI is associated with said one of a group of GANCs. - View Dependent Claims (20, 21)
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17. A switching node for use in a mobile telecommunications network, said mobile telecommunications network further comprising a service control entity, a location server, and a group of Generic Access Network Controllers (GANCs), each having an associated Location Area Code (LAC), said switching node comprising:
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a processing unit; an input unit connected to the processing unit; and an output unit connected to the processing unit; wherein said switching node being connectable to said service control entity and to said location server, and wherein the processing unit is arranged to; receive an ISUP IAM message via said input unit, said ISUP IAM message comprising a called party number comprising a fixed telephone number of a UMA-subscriber and a routing prefix; send a MAP SRI message to said location server via said output unit; receive subscription information and location information from said location server via said input unit, said location information comprising a LAC or a combination of a LAC and cell identifier (LAC+CI) associated with a serving BSC or a serving Generic Access Network Controller (GANC); send a trigger message to said service control entity via said output unit, using said received subscription information, said trigger message comprising said location information. - View Dependent Claims (22)
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18. A location server for use in a mobile telecommunications network, said mobile telecommunications network further comprising a first switching node, a second switching node, and a group of Generic Access Network Controllers (GANCs) each having an associated Location Area Code (LAC), said location server comprising:
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a processing unit; an input unit connected to the processing unit; and an output unit connected to the processing unit; wherein said location server is being connectable to said first switching node and to said second switching node, and wherein the processing unit is arranged to; receive a MAP SRI message containing a fixed number of a UMA subscriber from said first switching node via said input unit; determine a UMA-specific LSA restriction for the UMA-subscriber based on said fixed number; and send a MAP PRN message to said second switching node via said output unit, and send a UMA-specific LSA setting to said second switching node, said UMA-specific LSA setting indicating that the call is restricted to UMA access and is served by one of said GANCs in said group of GANCs. - View Dependent Claims (23, 24, 25)
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19. A switching node for use in a mobile telecommunications network, said mobile telecommunications network further comprising a first switching node, a location server, and a group of Generic Access Network Controllers (GANCs), each having an associated Location Area Code (LAC), said switching node comprising:
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a processing unit; an input unit connected to the processing unit; and an output unit connected to the processing unit; wherein said switching node being connectable to said first switching node and to said location server, and wherein the processing unit is arranged to; receive a MAP PRN message from said location server via said input unit; and receive a UMA-specific LSA setting from said location server, said LSA setting indicating to said switching node that said call to said UMA-subscriber is restricted to UMA access; determining how to route said call to said UMA-subscriber by determining a Mobile Station Routing Number (MSRN) based on the UMA-specific LSA setting if said location information indicates that said UMA-subscriber is currently under UMA access and is served by one of said GANCs in said group of GANCs; and send the Mobile Station Routing Number (MSRN) to said location server. - View Dependent Claims (26, 27)
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Specification