发明名称 |
Network node, method, and mobile terminal for providing voice calls to a mobile terminal in a packet-switched-only network |
摘要 |
A network node, method, and mobile terminal for providing circuit-switched (CS) voice calls to a mobile terminal operating in a packet-switched (PS)-only network. A control node such as an EPC node in an SAE/LTE PS-only network is modified to mimic the messaging functionality of a Serving GPRS Service Node (SGSN). The EPC node is connected to an MSC/VLR in a CS network through a Gs interface. The EPC node registers the terminal with the MSC/VLR and provides a VLR TMSI to the terminal. When the MSC/VLR receives an incoming CS voice call for the terminal, the MSC/VLR notifies the EPC node, which sends a paging message to the terminal. To set up the CS voice call, the terminal sends a paging response directly to the MSC/VLR. |
申请公布号 |
US9191984(B2) |
申请公布日期 |
2015.11.17 |
申请号 |
US201514671122 |
申请日期 |
2015.03.27 |
申请人 |
Telefonaktiebolaget L M Ericsson (publ) |
发明人 |
Sander Ann-Christine |
分类号 |
H04M7/00;H04W76/04;H04W68/00;H04W8/06 |
主分类号 |
H04M7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of providing a circuit-switched (CS) voice call to a mobile terminal operating in a packet-switched-only System Architecture Evolution/Long Term Evolution (SAE/LTE) network, said method comprising:
in a control node in the SAE/LTE network, emulating the messaging functionality of a Serving GPRS Service Node (SGSN); connecting the control node in the SAE/LTE network to a mobile switching center/visitor location register (MSC/VLR) in a CS network through an interface; receiving by the control node, a Paging Request from the MSC/VLR utilizing the interface; and sending an equivalent of a CS paging request message from the control node to the mobile terminal in the SAE/LTE network, the equivalent of the CS paging request message indicating the MSC/VLR has received an incoming CS voice call for the mobile terminal, wherein the equivalent of the CS paging request message causes the mobile terminal to send a CS paging response directly to the MSC/VLR. |
地址 |
Stockholm SE |