A Home Subscriber Server (HSS) determines whether roaming of voice communication via an IP Multimedia Subsystem (IMS) is supported in the Visited Public Land Mobile Network (VPLMN) or not, and transmits to a mobility management entity (MME) a signal that includes a ‘voice supported’ or ‘voice not supported’ indicator that indicates whether the roaming is supported or not. The MME receives the indicator from the HSS, and transmits to a User Equipment (UE) an ‘Attach Accept’ as a response to an ‘Attach Request’ for the VPLMN. The MME then transmits to the UE, based on the indicator received from the HSS, the ‘Attach Accept’ that includes an indicator that indicates whether the roaming is supported or not.

A method and device for acquiring a response message, a method and device for routing the response message, and a system for acquiring the response message and routing the response message are disclosed. The method includes steps that: a source node sends a service request message to a second group of nodes via a first group of DRA nodes; and the source node acquires the service response message returned by the destination node via the second group of DRA nodes.

Methods and systems are provided for supporting efficient and secure “Machine-to-Machine” (M2M) communications using a module, a server, and an application. A module can communicate with the server by accessing the Internet, and the module can include a sensor and/or an actuator. The module, server, and application can utilize public key infrastructure (PKI) such as public keys and private keys. The module can internally derive pairs of private/public keys using cryptographic algorithms and a first set of parameters. A server can authenticate the submission of derived public keys and an associated module identity. The server can use a first server private key and a second set of parameters to (i) send module data to the application and (ii) receive module instructions from the application. The server can use a second server private key and the first set of parameters to communicate with the module.

A wireless communications system includes a packet core network and a wireless access network that includes a base station and a terminal. The wireless communications system is capable of communications between terminals through a first path that includes the packet core network and communications between terminals through a second path that does not include the packet core network. The wireless communications system includes plural terminals; and a control station configured to be capable of processing related to proximity-based communications services between the plural terminals, obtaining identifiers of the plural terminals and position information related to positions of the plural terminals, by the processing related to the proximity-based communications services, and causing communication between the plural terminals to be executed by the second path, based on the identifiers of the plural terminals and the position information related to the positions of the plural terminals.

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may establish connectivity to a local area network using cellular radio access technology (RAT). The UE may establish a signaling radio link with a cellular access node (AN) via a cellular RAT. The UE may transmit a connectivity request to a network node via the signaling radio link. The connectivity request may specify a connectivity type for establishing connectivity to a LAN. Based at least in part on an acceptance of the connectivity request, the UE may establish a data radio link with the cellular AN. In an example, the acceptance of the connectivity request may include at least one parameter for configuring the connectivity to the LAN. The UE may then establish a data flow for exchanging data link layer packets with the LAN via the data radio link.

The invention relates to a method, network ad network entity for establishing a communication session between a calling subscriber residing in a first Visited IMS network and a called subscriber roaming in a second Visited IMS network. The method includes routing a first Invite request for the communication session via a media path extending from the first Visited IMS network via a Home IMS network of the called subscriber to the second Visited IMS network, and establishing the communication session. The method further includes inserting an additional IMS network entity, residing in the second Visited IMS network, in the part of the media path extending from the first Visited IMS network to the Home IMS network of the called subscriber and removing the Home IMS network of the called subscriber from the media path.

A mobile telecommunications network includes a core network (2020) having content processing means (2060, 2070) operable to provide a core network service relating to content, and a radio access network (700, 2003) having radio means for wireless communication with terminals (10) registered with the network, wherein the radio access network (700, 2003) includes a local source of content (741, 1100). The network is arranged to provide the content processing means (2060, 2070) core network service in relation to the content of the local source.

A method and apparatus are described for performing a selected Internet protocol (IP) traffic offload (SIPTO) procedure. A network node, (e.g., a mobility management entity (MME) or a serving general packet radio service (GPRS) support node (SGSN)), may receive a packet data network (PDN) connectivity request from a wireless transmit/receive unit (WTRU). A determination may be made to perform SIPTO at a local network, and the WTRU may perform a PDN release and reconnection procedure. The determination may be based on at least one of a closed subscriber group (CSG) identity (ID), a home evolved Node-B (HeNB) ID or a local network ID. An access network discovery and selection function (ANDSF) may be queried for IP interface selection (OPIIS) rules, a local access point name (APN) that supports per flow SIPTO at a local network, and IP flows that may be routed to the local APN.

Systems and methods are provided for routing internet protocol (IP) traffic flows when connected to a mobile network and a local network. A wireless transmit and receive unit (WTRU) determines whether to offload an IP traffic flow from the mobile network to the local network based on the destination address of the IP traffic flow. When the destination address is local, the WTRU routes the IP traffic flow through local network. The WTRU determines whether to offload IP traffic to the local network based on the stability state of the local network When the local network connection is sufficiently stable for the application associated with the IP traffic, the IP traffic is offloaded to the local network by selecting the local IP address as the source IP address.

A method of authenticating a mobile station on an alternate communications network is disclosed, the mobile station being associated with a default communications network. The mobile station comprises a baseband processor to manage the antenna-related functions and a SIM card to accommodate a default SIM associated with the default communications network for receiving network credentials from the baseband processor. The method comprises providing a SIM card device to intercept communications between the baseband processor and the SIM card, monitoring the network credentials in respect of the network that the mobile station is actively in communication with, determining whether the mobile station needs to switch to an alternate network, and identifying or receiving from a user the alternate network, consulting a SIM bank, comprising at least one alternate SIM, and selecting an alternate SIM having a mobile station identification variable compatible with the alternate network, receiving a network authentication request on the mobile station from the alternate network, and allocating the selected mobile station identification variable to the mobile station so as to identify the user of the mobile station on the alternate network.