IP multimedia subsystem virtual call/session control functions
First Claim
Patent Images
1. A method comprising:
- receiving, by a processor, a first registration request; and
determining, by the processor, a master virtual call session control function server from a virtual call session control function group comprising a plurality of virtual call session control function servers, wherein each of the virtual call session control function servers is implemented in a physical server, wherein the master virtual call session control function server is determined based upon a user profile, wherein the determining the master virtual call session control function server includes selecting one of the plurality of virtual call session control function servers to be the master virtual call session control function server in response to receiving the first registration request,wherein the master virtual call session control function server is for downloading subscriber data to the plurality of virtual call session control function servers, wherein the subscriber data is received by the master virtual call session control function server from a home subscriber server.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods provide virtual CSCFs in an IMS system. The Virtual CSCFs may be virtual S-CSCFs or virtual P-CSCFs. A master virtual CSCF may be used to distribute subscriber data and initial filter criteria to the virtual CSCFs in a group. Thus one of multiple servers may be used for processing call sessions for the same subscriber, thereby avoiding overloading a particular CSCF in an IMS system.
17 Citations
13 Claims
-
1. A method comprising:
-
receiving, by a processor, a first registration request; and determining, by the processor, a master virtual call session control function server from a virtual call session control function group comprising a plurality of virtual call session control function servers, wherein each of the virtual call session control function servers is implemented in a physical server, wherein the master virtual call session control function server is determined based upon a user profile, wherein the determining the master virtual call session control function server includes selecting one of the plurality of virtual call session control function servers to be the master virtual call session control function server in response to receiving the first registration request, wherein the master virtual call session control function server is for downloading subscriber data to the plurality of virtual call session control function servers, wherein the subscriber data is received by the master virtual call session control function server from a home subscriber server. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An internet protocol multimedia system comprising:
-
a home subscriber server to maintain subscriber data; and a virtual serving call session control function group, the virtual serving call session control function group including a plurality of virtual serving call session control function servers, each of the virtual serving call session control function servers being implemented in a physical server, the plurality of virtual serving call session control function servers including a master virtual serving call session control function server, wherein the master virtual serving call session control function server is determined by a selection of one of the plurality of virtual serving call session control function servers in response to receiving a first registration request; wherein the master virtual serving call session control function server is for receiving the subscriber data from the home subscriber server and to download the subscriber data to the plurality of virtual serving call session control function servers, wherein the master virtual call session control function server is determined based upon a user profile. - View Dependent Claims (9)
-
-
10. A non-transitory computer-readable medium storing a plurality of instructions which, when executed by a processor, cause the processor to perform operations, the operations comprising:
-
receiving a first registration request; and determining a master virtual call session control function server from a virtual call session control function group comprising a plurality of virtual call session control function servers, wherein each of the virtual call session control function servers is implemented in a physical server, wherein the master virtual call session control function server is determined based upon a user profile, wherein the determining the master virtual call session control function server includes selecting one of the plurality of virtual call session control function servers to be the master virtual call session control function server in response to receiving the first registration request, wherein the master virtual call session control function server is for downloading subscriber data to the plurality of virtual call session control function servers, wherein the subscriber data is received by the master virtual call session control function server from a home subscriber server. - View Dependent Claims (11)
-
-
12. An apparatus comprising:
a master virtual call session control function server implemented in a physical server, wherein the master virtual call session control function server is a member of a group comprising a plurality of virtual call session control function servers, wherein the master virtual call session control function server is determined based upon a user profile and by a selection of one of the plurality of virtual serving call session control function servers in response to receiving a first registration request, the master virtual call session control function server operable to; receive subscriber data from a home subscriber server; and download the subscriber data to the plurality of virtual call session control function servers. - View Dependent Claims (13)
Specification