System and method for using VoIP session continuity information using logical scalable units
First Claim
1. A method of communicating messages in communication system, comprising:
- receiving in a processor of a multiprocessor computing system a first communication message from a logical scalable unit (LSU) frontend component, wherein the first communication message was sent by the LSU frontend component in response to the LSU frontend component receiving a message from a first client component in response to the first client component determining that a user equipment set-up, modified, or terminated a VoiP call;
determining, via the processor, whether session information relating to the received first communication message may be obtained from a session store;
using session information included in the session store to make a policy decision in response to determining that session information relating to the received first communication message may be obtained from the session store;
using session continuity information included in the received first communication message to determine the session information, and using the determined session information to make the policy decision, in response to determining that session information relating to the received first communication message may not be obtained from the session store, wherein the session continuity information includes information for maintaining session continuity for select services in the event of a failure without replicating session stores, including at least one of a session continuation (SC) parameter or a Session-Continuity Attribute-Value-Pair (AVP);
generating and sending a second communication message to the LSU frontend component based on the policy decision; and
generating and sending a third communication message that includes updated session continuity information to the LSU frontend component.
1 Assignment
0 Petitions
Accused Products
Abstract
Logical scalable units (LSU) can be used within a single network data center to provide stateful scalability. However, LSUs are not suitable for operating across multiple network data centers in order to provide geographical redundancy in active-active scenarios while providing high availability. This is because the latencies associated with replicating full session information are unacceptably slow. An additional component in the LSU (known as an LSU Frontend) can be used to replicate a small subset of session information between LSUs. This subset of session information may be enough to enable LSUs to process requests in an acceptable way rather than outright failing. This may be particularly advantageous in scenarios where the requests relate to Voice over LTE calls, because outright failure is very perceivable to subscribers, and it causes resource leakage within the telecommunications network.
-
Citations
20 Claims
-
1. A method of communicating messages in communication system, comprising:
-
receiving in a processor of a multiprocessor computing system a first communication message from a logical scalable unit (LSU) frontend component, wherein the first communication message was sent by the LSU frontend component in response to the LSU frontend component receiving a message from a first client component in response to the first client component determining that a user equipment set-up, modified, or terminated a VoiP call; determining, via the processor, whether session information relating to the received first communication message may be obtained from a session store; using session information included in the session store to make a policy decision in response to determining that session information relating to the received first communication message may be obtained from the session store; using session continuity information included in the received first communication message to determine the session information, and using the determined session information to make the policy decision, in response to determining that session information relating to the received first communication message may not be obtained from the session store, wherein the session continuity information includes information for maintaining session continuity for select services in the event of a failure without replicating session stores, including at least one of a session continuation (SC) parameter or a Session-Continuity Attribute-Value-Pair (AVP); generating and sending a second communication message to the LSU frontend component based on the policy decision; and generating and sending a third communication message that includes updated session continuity information to the LSU frontend component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17)
-
-
11. A server computing device, comprising:
a processor configured with processor-executable instructions to perform operations comprising; receiving a first communication message from a logical scalable unit (LSU) frontend component, wherein the first communication message was sent by a LSU frontend component in response to the LSU frontend component receiving a message from a first client component in response to the first client component determining that a user equipment set-up, modified, or terminated a VoIP call; determining whether session information relating to the received first communication message may be obtained from a session store; using session information included in the session store to make a policy decision in response to determining that session information relating to the received first communication message may be obtained from the session store; using session continuity information included in the received first communication message to determine the session information, and using the determined session information to make the policy decision, in response to determining that session information relating to the received first communication message may not be obtained from the session store, wherein the session continuity information includes information for maintaining session continuity for select services in the event of a failure without replicating session stores, including at least one of a session continuation (SC) parameter or a Session-Continuity Attribute-Value-Pair (AVP); generating and sending a second communication message to the LSU frontend component based on the policy decision; and generating and sending a third communication message that includes updated session continuity information to the LSU frontend component. - View Dependent Claims (12, 13, 14, 15)
-
16. A non-transitory computer readable storage medium having stored thereon processor-executable software instructions configured to cause a processor to perform operations comprising:
-
receiving a first communication message from a logical scalable unit (LSU) frontend component, wherein the first communication message was sent by a LSU frontend component in response to the LSU frontend component receiving a message from a first client component in response to the first client component determining that a user equipment set-up, modified, or terminated a VoIP call; determining whether session information relating to the received first communication message may be obtained from a session store; using session information included in the session store to make a policy decision in response to determining that session information relating to the received first communication message may be obtained from the session store; using session continuity information included in the received first communication message to determine the session information, and using the determined session information to make the policy decision, in response to determining that session information relating to the received first communication message may not be obtained from the session store, wherein the session continuity information includes information for maintaining session continuity for select services in the event of a failure without replicating session stores, including at least one of a session continuation (SC) parameter or a Session-Continuity Attribute-Value-Pair (AVP); generating and sending a second communication message to the LSU frontend component based on the policy decision; and generating and sending a third communication message that includes updated session continuity information to the LSU frontend component. - View Dependent Claims (18, 19, 20)
-
Specification