Systems, devices, and techniques described herein are directed to function selection based on utilization level in mobile networks. In particular, the systems, devices, and techniques can be implemented in fifth generation (5G) mobile networks to provide intelligent selection of a user plane function (UPF) based on utilization levels, capability information, and/or locality information. UPFs can provide indications of a utilization level to a network resource function (NRF), which can manage a database of the various utilizations levels of various UPFs. Based on a current, historical, or expected utilization of one or more UPFs, and/or based on the services requested and various locations of the services in a network, the NRF can select and provide, in part, a UPF to the UE, so that the UPF can carry user traffic associated with the UE.

The present specification relates to a method by which a first terminal performs a session handover in a wireless communication system, wherein the method for performing a session handover can comprise the steps of: forming an ASP session with a second terminal by a first connecting method; transmitting a session handover request to the second terminal; receiving a session handover response from the second terminal; and transmitting a session handover confirm to the second terminal, wherein, when the session handover response is received from the second terminal, the formed ASP session can be handed over by a second connecting method.

There is provided a communication apparatus. A first communication unit communicates with an external apparatus in accordance with a first communication method. A second communication unit communicates with the external apparatus in accordance with a second communication method. A determination unit determines identification information of the second communication unit based on predetermined information related to communication with the external apparatus via the first communication unit. A control unit performs control so as to establish communication with the external apparatus via the second communication unit, using the determined identification information of the second communication unit.

A system is disclosed in which a base station performs an Automatic Neighbour Relation (ANR) operation in relation to a Wireless Local Area Network (WLAN) and obtains, from a mobile communication device (UE) or a Mobility Management Entity (MME), the Transport Network layer (TNL) address associated with a WLAN Termination node of the WLAN for establishing a connection between the base station and the WLAN Termination node.

An embodiment of this disclosure provides a user equipment (UE) for managing handovers between different networks. The UE includes a memory and at least one processor operably connected to the memory. The at least one processor is configured to establish security associations with an evolved data packet gateway (ePDG) over a Wi-Fi network. The at least one processor is also configured to indicate MOBIKE support and a specific timer value corresponding to a specific period of time for maintaining the security associations. The at least one processor is also configured to, after establishing the security associations, perform a handover from the Wi-Fi network to a long term evolution (LTE) network. The at least one processor is also configured to maintain the security associations for the specific period of time corresponding to the specific timer value after performing the Wi-Fi to LTE handover and disconnecting from the Wi-Fi network.

Techniques for establishing and implementing application-based routing policies for multi-mode wireless communication devices are described. In some examples, information particular to the profile and platform configuration of the UE, including an identifier of an operating system, is communicated to an Access Network Discovery Function (ANDSF) server. The ANDSF server may provide an inter-system routing policy (ISRP) to handle appropriate network offloading actions for the particular application and device configuration. In some examples, the ISRP may be specific to flow-based or non-seamless based traffic offloading from certain software applications and include nodes to define routing rules based on an operating system identifier and operating system-specific application identifier. The policy may be propagated from the ANDSF server and implemented in multi-mode UE mobile computing devices in connection with offloading policies established in a 3GPP LTE/LTE-A Evolved Packet Core network architecture.

A system, method and computer-readable medium for concurrent support of Voice Call Continuity (VCC) capabilities in both the enterprise space and the carrier space are provided. The enterprise VCC functionality is used when the user is located in the enterprise domain which does not impact the carrier's network while the carrier VCC capability is used when the user is located in the carrier domain to support seamless handover between the wireless networks that the carrier may offer. The carrier VCC anchoring point and the enterprise VCC anchoring point may communicate with each other to confirm and inform the other anchoring point that a call handover is occurring or will occur.

A wireless communication device (10, 10A) includes a first wireless communication unit (111), a second wireless communication unit (112), and a control unit (130). The first wireless communication unit (111) performs communication by connecting to a first communication network that permits connection in a predetermined area. The second wireless communication unit (112) performs communication by connecting to a second communication network different from the first communication network. The control unit (130) predicts communication quality of communication by the first wireless communication unit (111), and determines whether or not to perform communication by the second wireless communication unit (112) based on whether or not the predicted communication quality satisfies a desired communication quality.

A device such as a mobile device may be configured to connect to and/or communicate with one or more networks. The device may receive information indicating that there is at least one other network within a range of the device. One of the networks within range of the device may comprise a preferred cellular network. The device may then scan for the preferred cellular network and communicate with the preferred cellular network. The device may also detect the preferred cellular network based on information stored on the device. When the device is within range of the preferred cellular network, the device may detect the preferred cellular network based on the stored information and begin communicating with the preferred cellular network.

Provided are apparatus and methods for controlling a handover of a user equipment between base stations each belonging to a network different from the other. The method includes: i) determining whether the user equipment should be handed over to a target base station belonging to a heterogeneous network based on measurement information received from the user equipment, ii) transmitting a handover required message containing identification information of the target base station to a core network entity linked to the source base station, when it is determined that the user equipment should be handed over, iii) receiving a handover command message containing evolved packet system (EPS) bearer setup list information of the target base station from the core network entity, and iv) transmitting the handover command message to the user equipment.