Session transfer method, device and system

摘要

The present invention discloses a session transfer method, a device and a system, which relate to the communication field and are used to solve the problem that a conference to which a session belongs cannot be controlled after the session is transferred. The technical solution provided in the present invention includes: determining whether a User Equipment (UE) has at least one session belonging to a conference during a process that a session of the UE is transferred from a source network to a target network and sending information relevant to the conference to the UE or a Mobile Switching Center (MSC) server if the UE has at least one session belonging to the conference (102). The embodiments of the present invention can be applied in a wireless communication network.

主权项

1. A session transfer method, comprising:
receiving, by a Service Centralization and Continuity Application Server (SCC AS), a session transfer request from a User Equipment (UE) via a Server-Call Session Control Function (S-CSCF); wherein the session transfer request is configured to request to transfer a session of the UE from a Circuit Switched (CS) domain to a Packet Switched (PS) domain; establishing, by the SCC AS, in response to receiving the session transfer request, a first access leg that is based on the PS domain, and updating a first remote leg with connection information of the first access leg that is based on the PS domain, wherein the first remote leg is an access leg between the SCC AS and a communication opposite end of a first session belonging to the UE; sending, by the SCC AS, information relevant to a conference to the UE via the S-CSCF when the SCC AS determines, according to pre-stored information relevant to sessions of the UE, that a second session of the UE belongs to the conference; wherein the information relevant to the conference is capable of being used by the UE to control the conference; after the SCC AS sends information relevant to the conference to the UE via the S-CSCF, establishing, by the SCC AS, a second access leg that is based on the PS domain, and updating a second remote leg with connection information of the second access leg that is based on the PS domain, wherein the second remote leg is an access leg between the SCC AS and a communication opposite end of the second session belonging to the UE.