Network node, method, and mobile terminal for providing voice calls to a mobile terminal in a packet-switched-only network

US9019953B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9019953-B2
Application numberUS-42810306-A
CountryUS
Kind codeB2
Filing dateJun 30, 2006
Priority dateJun 30, 2006
Publication dateApr 28, 2015
Grant dateApr 28, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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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.

First claim

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What is claimed is: 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, mimicking 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 th…

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What does patent US9019953B2 cover?
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. T…
Who is the assignee on this patent?
Sander Ann-Christine, Ericsson Telefon Ab L M
What technology area does this patent fall under?
Primary CPC classification H04W68/00. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).