Methods, apparatuses, and related computer program product for network element recovery

摘要

It is disclosed a method (and related apparatus) comprising establishing a control session by transmitting and receiving control session-related messages, transmitting restart information indicating a restart of a network element, receiving at least one protocol-related message of a first control session including session-related detail information, transmitting a restoration request message based on the session-related detail information, receiving at least one session parameter necessary for restoring the at least one first session, and restoring the at least one first session based on the received session-related detail information and the at least one session parameter. It is further disclosed a method (and related apparatus) comprising receiving restart information indicating a restart of a network element, processing at least one protocol-related message of a first control session to include session-related detail information, and transmitting at least one session parameter necessary for restoring the at least one first session, and the at least one protocol related message.

主权项

1. A method, comprising:
establishing a control session by transmitting and receiving control session-related messages; transmitting restart information, by a policy-and-charging-rules-function network element, indicating a restart of the policy-and-charging-rules-function network element, wherein the restart information is transmitted by the policy-and-charging-rules-function network element to a policy-and-charging-enforcement-function network element or an application-function network element; when there is a reason for at least one protocol-related message of a first control session to be sent, the reason comprising a request for an IP connectivity access network session modification or a request for a user plane event, receiving, by the policy-and-charging-rules-function network element, the at least one protocol-related message of the first control session including session-related detail information; transmitting a restoration request message based on the session-related detail information; receiving at least one session parameter necessary for restoring the at least one first control session; and restoring the at least one first control session based on the received session-related detail information and the at least one session parameter.