One embodiment of the present invention relates to a method whereby a terminal performs an operation related to public land mobile network (PLMN) selection related to ProSe direct communication in a wireless communication system, the method for performing an operation related to PLMN selection comprising the steps of: selecting a first PLMN; performing registration with the first PLMN; and selecting a second PLMN in case of failure to register with the first PLMN, wherein when selecting the second PLMN, the terminal treats a list that did not include the first PLMN at the time of selecting the first PLMN as if the list has included the first PLMN.

One embodiment of the present invention relates to a method whereby a terminal performs an operation related to public land mobile network (PLMN) selection related to ProSe direct communication in a wireless communication system, the method for performing an operation related to PLMN selection comprising the steps of: selecting a first PLMN; performing registration with the first PLMN; and selecting a second PLMN in case of failure to register with the first PLMN, wherein when selecting the second PLMN, the terminal treats a list that did not include the first PLMN at the time of selecting the first PLMN as if the list has included the first PLMN.

Apparatus and methods are provided to handle idle mode operation in the heterogeneous network with conventional macro cell and millimeter wave (mmW) small cells. In one novel aspect, the UE camps on both the macro cell and the mmW small cell. The UE receives system information that includes information of mmW small cells and paging messages from the macro cell and establishes RRC connection with one of the mmW small cell. In one embodiment, the UE performs mmW small cell discovery upon obtaining mmW small cell information. In another embodiment, the UE performs the mmW small cell discovery if the mobility status indicates low mobility and/or the traffic type is suitable for the mmW small cell. In another novel aspect, the UE receives the paging request from the macro cell and sends the paging response to the mmW small cell base station who forwards the paging response to the MME.

Connectionless data transfer is disclosed. Authentication of a device and network node may be performed when data is sent from the device to an application server of an application service provider via a selected network. The transfer of data may take place in an absence of an existing device context between the network node interacting with the device and the core network through which the data travels. State management overhead and signaling overhead may be reduced by use of the exemplary aspects disclosed herein. For example, the device does not need to perform an authentication and key agreement (AKA) procedure to transfer the data and an existing (or pre-existing) device context need not be maintained at the core network.

Connectionless data transfer is disclosed. Authentication of a device and network node may be performed when data is sent from the device to an application server of an application service provider via a selected network. The transfer of data may take place in an absence of an existing device context between the network node interacting with the device and the core network through which the data travels. State management overhead and signaling overhead may be reduced by use of the exemplary aspects disclosed herein. For example, the device does not need to perform an authentication and key agreement (AKA) procedure to transfer the data and an existing (or pre-existing) device context need not be maintained at the core network.

A communication apparatus which includes a plurality of network interfaces stores the address of the communication apparatus in a network in association with one of the plurality of network interfaces, decides, if there is a signal to be transmitted, a network interface to be used to transmit the signal out of the plurality of network interfaces, determines whether one or more first addresses associated with the decided network interface are stored, and performs control, if at least one of the first addresses is stored, so as to select the second address out of the first addresses based on a value at least used to set a communicable range, and transmit the signal to be transmitted by using the second address as a transmission source address.

Generic service request signaling is defined where a multimode terminal is allowed to request any service that it supports in any of the modes (e.g., access technology like GERAN/UTRAN/CDMA2000/Bluetooth/WLAN/ . . . ) supported by the terminal. The network may then decide to move the terminal to other system if possible and necessary in order to establish the service. Mostly existing terminal capability indication for each system mode is used.

Some demonstrative embodiments include devices, systems and/or methods to establish a connection to the Internet via a local gateway (L-GW) function for a LIPA or a SIPTO@LN. The establishment of the connection to the Internet may be performed, for example, by at least one of an E-RAB SETUP procedure, an INITIAL CONTEXT SETUP procedure, an INITIAL UE MESSAGE procedure or an UPLINK NAS TRANSPORT procedure.

Some demonstrative embodiments include devices, systems and/or methods to establish a connection to the Internet via a local gateway (L-GW) function for a LIPA or a SIPTO@LN. The establishment of the connection to the Internet may be performed, for example, by at least one of an E-RAB SETUP procedure, an INITIAL CONTEXT SETUP procedure, an INITIAL UE MESSAGE procedure or an UPLINK NAS TRANSPORT procedure.

A first network node of a first frequency layer, acquires (201) information on services that are offered by a second network node at a second, different frequency layer. The second network node is within the coverage area of the first network node. The first network node broadcasts (202) a service advertisement message to at least one terminal device (UE) for advertising the services offered by the second network node at the second frequency layer.