Method and apparatus for establishing volte call
地域：
Stockholm
摘要
A method and apparatus for establishing a Voice over LTE (Long Term Evolution) (VoLTE) call in a communication network are provided. After a request for establishing a VoLTE call is received, a user equipment (UE) involved in the VoLTE call that is in LTE coverage can be identified. One or more dummy messages are send to the identified UE after the VoLTE call enters into ringing phase. An interval between successive dummy messages is shorter than a first time period set for determining whether to release radio resource for supporting the VoLTE call in LTE coverage. Sending the dummy message can be stopped if the VoLTE call is answered or is cancelled. As a consequence, time spending on establishing a VoLTE call is shortened and good performance characteristics is achieved, and signallings on networks are reduced.
說明書
Although specific embodiments have been illustrated and described herein, those of ordinary skill in the art appreciate that any arrangement which is calculated to achieve the same purpose may be substituted for the specific embodiments shown and that the invention has other applications in other environments. This application is intended to cover any adaptations or variations of the present invention. The following claims are in no way intended to limit the scope of the invention to the specific embodiments described herein.
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