EP3203804A1

5G,4G,3G,2G

Title

CIRCUIT-SWITCHED SERVICES OVER SAE/LTE NETWORKS

Application Number:

EP20160200401

Publication Date:

09-08-2017

Current Assignee:

Family ID:

Application Date:

21-10-2008

Declaring Company:

Publication Country:

US

Priority Date:

01-11-2007

Title

CIRCUIT-SWITCHED SERVICES OVER SAE/LTE NETWORKS

Application Number:

EP20160200401

Family ID:

Publication Country:

US

Publication Date:

09-08-2017

Application Date:

21-10-2008

Priority Date:

01-11-2007

Current Assignee:

Declaring Company:

Abstract  Abstract

A method of providing a circuit-switched CS service to a User Equipment UE over an SAE core network (11) and an LTE radio access network (12) said method comprising the steps of: extending an SGs interface to provide an SGs+ interface between a Mobility Management Entity MME in the SAE core network and a Mobile Switching Center Server MSC-S wherein the SGs+ interface supports transmission of upper layer packet data units; transferring CS service messages in SGs+ messages sent between the MSC-S and the MME utilizing the SGs+ interface wherein the step of transferring CS service messages includes sending from the MSC-S to the MME an SGs+ downlink data transfer message including upper layer packet data units destined for a terminating UE or sending from the MME to the MSC-S an SGs+ uplink data transfer message including upper layer packet data units originated by an originating UE; and transferring CS service message contents between the MME and the UE via the LTE radio access network in non access stratum NAS messages wherein the CS service is a Short Message Service SMS and the step of transferring CS service messages includes sending from the MSC-S to the MME an SGs+ downlink data transfer message said SGs+ downlink data transfer message including SMS message content destined for the terminating UE. According to said method a system for providing a circuit-switched CS service to a User Equipment and an apparatus in a Mobility Management Entity are specified.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.