| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention relates to mobile communication. The method comprises steps of detecting (301) that handover is required from a packet switched (PS) network (102) to a circuit switched (CS) network (103), initiating (302) in a source mobility management node (104) a single radio voice call continuity (SVRCC), initiating (303) a PC to CS handover for non-voice components with information about voice related parameters and a PS to CS handover indicator, executing (304) handover, sending (305) an update request to a serving gateway, i.e SGW, (107) from a target mobility management node (105) with non-voice related parameters and the PS to CS handover indicator, forwarding (306) the update request from the SGW to a packet data network gateway (PGW) (108), receiving the update request in the PGW, detecting the PS to CS handover indicator and handling (307) in the PGW the PS to CS handover indicator.EFFECT: simple PS to CS handover process.15 cl, 5 dwg |
