Abstract: Methods, systems, and devices for offloading traffic flows without service disruption are disclosed herein. User equipment (UE) is configured to receive an indication that a current packet data network (PDN) connection can be optimized. The current PDN connection is established over a first PDN gateway (PGW). The UE requests connection over a new PDN connection to a same type of service as the current PDN connection without releasing the connection over the first PGW. The UE routes new traffic flows over a second PGW corresponding to the new PDN connection and routes old traffic flows over the first PGW.

Abstract: Embodiments for providing network-assisted to direct device discovery switch are generally described herein. In some embodiments, location information is received at an evolved packet core (EPC) from at least a first and a second user equipment (UE). A network-assisted device-to-device (D2D) request is received from the first UE for establishing a D2D wireless connection with the second UE. Proximity of the first UE and the second UE are monitored. Before detecting the second UE being in proximity to the first UE, direct discovery is determined to be more resource efficient than continuing to provide network-assisted D2D discovery. An indication is provided to the first UE and the second UE to perform direct discovery based on information provided in the indication.

Abstract: A method for offloading traffic in a wireless communication system, receiving, by a user equipment (UE), a deactivate bearer request indicating reactivation is required for a packet data network (PDN) connection, wherein the deactivate bearer request is triggered by a Mobility Management Entity (MME) which has obtained subscription data for the UE from a Home Subscriber Server (HSS) and has received local gateway (L-GW) information indicating a transport layer address of a L-GW being capable of offloading the traffic, wherein the subscription data for the UE is defined based on an Access Point Name (APN), wherein the subscription data for the UE includes a first information element indicating whether a corresponding traffic associated with the APN is allowed for Selected IP Traffic Offload (SIPTO) and a second information element indicating whether the corresponding traffic associated with the APN is allowed for Selected IP Traffic Offload via Local Network (SIPTO@LN).

Abstract: Technology that allows PDN connections for a UE to be resumed efficiently after WLAN connectivity is lost and then regained are disclosed. A UE can have a multi-legged or multi-access packet-data-network (PDN) connection that is used to communicate with a WLAN and with an eNB. When WLAN connectivity is lost, the UE can send a WLAN-connectivity-loss communication to a PDN-GW via the eNB. A TWAG can also detect that the UE's WLAN connectivity has been lost and can send a suspension communication to the PDN-GW. The TWAG can also store PDN context information for the UE for a predefined period of time. When the UE regains WLAN connectivity, the UE can send a WLAN-link-control-protocol (WLCP) communication to the TWAG indicating that the UE wishes to resume one or more PDN connections that were previously suspended.

Abstract: For traffic offload via a local network, a MME may obtain from a HSS, subscription data including SIPTO related permissions defined on APN basis that indicate SIPTO prohibited, indicate SIPTO allowed excluding SIPTO via Local Network (SIPTO@LN), and/or indicate SIPTO allowed including SIPTO@LN. Then, the MME may obtain information about one or more local Gateways (GWs) capable of offloading selected traffic, such information indicating which of the one or more local GWs provides access to which Packet Data Networks (PDNs), with each PDN being identified by its associated APN. Finally, the MME may process PDN connections and/or PDN disconnections in order to support offloading of the selected traffic. The counterpart UE includes the appropriate means of hardware and/or software that is configured to support and perform SIPTO@LN.

Abstract: A system and method are provided for enabling a mobile device to establish a local IP access on a packet data network connection on a femto cellular access network. A local server gateway and a macro server gateway are coupled to the femto cellular access network. A mobility management entity is coupled to the femto cellular access network, the local server gateway and the macro server gateway. The mobility management entity obtains a status mode of the mobile device and a location of the mobile device transmitted on the femto cellular access network. The mobility management entity selects one of the local server gateway and the macro server gateway based on the status mode of the mobile device and the location of the mobile device.

Abstract: A method and a user equipment (UE) for routing a data packet in a wireless communication network are discussed. The method according to an embodiment includes establishing, by the UE, a packet data network (PDN) connection via a 3rd Generation Partnership Project (3GPP) cellular network; obtaining, by the UE from an Access Network Discovery and Selection Function (ANDSF) server, a routing rule including information on an access point name (APN) and a priority of the APN, the APN identifying a packet data network (PDN) connection; and performing, by the UE, an offload function by selecting a gateway via the 3GPP cellar network based on the priority of the APN. The routing rule comprises identification information in the form of an IP 5-tuple allowing the UE to route the data packet.

Abstract: When a UE in an LTE system enters the RRC_IDLE state, only the S5/S8 EPS bearer context is retained, and the S1-U, S1-AP and radio bearers are released. These bearers have to be re-established on per UE basis when the UE returns to RRC_CONNECTED state. A number of UE applications may send small data frequently, which causes the UE to toggle between IDLE and CONNECTED states. This leads to a great deal of signaling overhead as the radio bearer and the S1-U bearer must be frequently re-established as the UE transitions between IDLE to CONNECTED states. Described herein are methods and systems that provide an always-on S1-U bearer to reduce this signaling overhead.

Abstract: A node is provided that includes a home base station collocated with a local gateway (L-GW) providing access to a local Internet Protocol (IP) network. The node performs an establishment procedure with a security gateway (SeGW), and discriminates a packet. The node uses a first interface configured at the L-GW and a second interface which is configured between the home base station and a gateway for the home base station. The first and second interfaces are tunneled through a same IP security (IPsec) tunnel opened between the home base station and the SeGW. The home base station for the first interface uses a first IP address that is either same as or different from a second IP address used by the home base station for the second interface. The node uses either distinct ranges of Tunnel Endpoint Identifiers (TEIDs) or the first and second IP addresses to discriminate the packet.

Abstract: The present invention relates to a mobile communication system, and more particularly relates to a method for transmitting a small-sized control signal (also known as “small data”) using a control plane in a MTC (machine-type communication) service in a mobile communication system. In the present invention, MTC data is encapsulated in an existing control procedure or control message or the like, on a control signal, without performing packet data bearer setup, and the control signal having the encapsulated MTC data is sent between a network and a terminal, thereby optimizing network resource efficiency and reducing the wireless channel load.

Abstract: Generally discussed herein are systems, apparatuses, and methods that can provide a key authentication and identity verification in a D2D communication regime. A method can include providing a first public key of a first D2D device to a second D2D device and receiving a second public key of the second D2D device, providing a connection request packet to the second D2D device including a first attested key and a third public key, the first attested key including the first public key signed using a private key of a public key attestation service (PAS), receiving a connection accept packet from the second D2D device including a second attested public key, and a fourth public key, the second attested public key including the second public key signed using the private key of the PAS, and verifying the identity of the second D2D device using the received keys.

Abstract: A Mobility Management Entity (MME) comprises at least one entity or layer having Mobile Switching Center (MSC) functionality to support a Short Messaging Service (SMS) between a network and a mobile station by employing Machine-to-Machine (M2M) or Machine Type Communication (MTC) protocols. A first state machine entity or layer that supports relay functions to perform forwarding of SMS messages to the mobile station. A second state machine entity or layer that supports connection functions with at least an HSS/HLR (Home Subscriber Server/Home Location Register), and with an SMS-SC (Short Messaging Service -Service Center) or GMSC/IWMSC (Gateway MSC/Interworking MSC).

Abstract: A Mobility Management Entity (MME) having MSC functionality implemented therein, performs a scheme of MTC device triggering has been conceived. A PS and CS combined location update is sent to the HSS/HLR by means of piggybacking of CS domain information over an interface between the MME and the HSS/HLR as part of a “combined” EPS/IMSI attach procedure or a “combined” TA/LA update procedure. The, SMS signaling is received from an SMS-SC (GMSC/IWMSC) to transfer an SMS message for an LTE-only device or a single-mode E-UTRAN device. Here, the SMS signaling is received from the SMS-SC (GMSC/IWMSC) via an interworking function (IWF) that provides interworking between a MAP interface and a Diameter interface. As a result, M2M or MTC devices can be supported for an LTE network or the like.

Abstract: A method and a user equipment (UE) for routing a data packet in a wireless communication network are discussed. The method according to an embodiment includes establishing, by the UE, a packet data network (PDN) connection via a 3rd Generation Partnership Project (3GPP) cellular network; obtaining, by the UE from an Access Network Discovery and Selection Function (ANDSF) server, a routing rule including information on an access point name (APN) and a priority of the APN, the APN identifying a packet data network (PDN) connection; and performing, by the UE, an offload function by selecting a gateway via the 3GPP cellar network based on the priority of the APN. The routing rule comprises identification information in the form of an IP 5-tuple allowing the UE to route the data packet.

Abstract: A Mobility Management Entity (MME) comprises at least one entity or layer having Mobile Switching Center (MSC) functionality to support a Short Messaging Service (SMS) between a network and a mobile station by employing Machine-to-Machine (M2M) or Machine Type Communication (MTC) protocols. A first state machine entity or layer that supports relay functions to perform forwarding of SMS messages to the mobile station. A second state machine entity or layer that supports connection functions with at least an HSS/HLR (Home Subscriber Server/Home Location Register), and with an SMS-SC (Short Messaging Service -Service Center) or GMSC/IWMSC (Gateway MSC/Interworking MSC).

Abstract: A Mobility Management Entity (MME) having MSC functionality implemented therein, performs a scheme of MTC device triggering has been conceived. A PS and CS combined location update is sent to the HSS/HLR by means of piggybacking of CS domain information over an interface between the MME and the HSS/HLR as part of a “combined” EPS/IMSI attach procedure or a “combined” TA/LA update procedure. The, SMS signaling is received from an SMS-SC (GMSC/IWMSC) to transfer an SMS message for an LTE-only device or a single-mode E-UTRAN device. Here, the SMS signaling is received from the SMS-SC (GMSC/IWMSC) via an interworking function (IWF) that provides interworking between a MAP interface and a Diameter interface. As a result, M2M or MTC devices can be supported for an LTE network or the like.

Abstract: The invention relates to a method for traversing a NAT device residing in a backhaul IP network. A home cellular base station (HeNB) and a collocated local gateway (L-GW) providing access to a local IP network are connected to a mobile operator's packet core network through the NAT device. The method comprises the steps of opening an IPsec tunnel between the home cellular base station (HeNB) and a security gateway (SeGW) via the NAT device, and of tunneling two interfaces through the same IPsec tunnel, wherein a first interface is an interface whose local endpoint is the home cellular base station (HeNB) and whose remote endpoint is a node residing in the operator's packet core network, and a second interface is an interface whose local endpoint is the local gateway (L-GW) and whose remote endpoint is a node residing in the operator's packet core network. The invention also relates to a node comprising a home cellular base station (HeNB) and a collocated local gateway (L-GW).

Abstract: Embodiments of a UE and methods for D2D communication are generally described herein. The UE may transmit, as part of an in-network communication session, a D2D discovery status message. The D2D discovery status message may indicate an initiation or termination of a D2D discovery operation at the UE and may indicate if the UE is announcing or monitoring part of the D2D discovery operation. The D2D discovery operation may be at least partly for configuring a D2D communication session between the UE and one or more other UEs. The UE may transmit, as part of the D2D discovery operation, a D2D discovery signal for reception at one or more other UEs. The UE may transmit and receive D2D packets over a direct link to a second UE as part of the D2D communication session.

Abstract: The invention relates to a home cellular base station (HeNB), comprising a radio interface (RI), to communicate with a user equipment (UE), a local interface (LI), to communicate with a local gateway (L-GW) providing access to a local IP network, a user plane interface (S1-U), to communicate with a serving gateway (SGW), and a control plane interface (S1-MME), to communicate with a control node (MME). The home cellular base station (HeNB) further comprises a selection module (SelMod) set to obtain a first correlation ID for enabling a direct user plane path between the home cellular base station (HeNB) and the local gateway (L-GW), the first correlation ID being obtained via the control plane interface (S1-MME) upon each establishment of a bearer providing access to the local IP network. The invention also relates to a control node (MME), to a home subscriber server (HSS), to a direct path enablement method, and to a PDN management method.

Abstract: The present invention relates to a mobile communication system, and more particularly relates to a method for transmitting a small-sized control signal (also known as “small data”) using a control plane in a MTC (machine-type communication) service in a mobile communication system. In the present invention, MTC data is encapsulated in an existing control procedure or control message or the like, on a control signal, without performing packet data bearer setup, and the control signal having the encapsulated MTC data is sent between a network and a terminal, thereby optimizing network resource efficiency and reducing the wireless channel load.