Interdigital Patent Holdings, Inc.

Anuj Sethi

Saad Ahmad

Michael F Starsinic

Ulises Olvera-Hernandez

Guanzhou Wang

Samir Ferdi

Atle Monrad

Tezcan Cogalan

Alain Mourad

Alec Brusilovsky

Mohamad Kenan Al-Hares

A method implemented in a Wireless Transmit/Receive Unit, WTRU, for selecting a local network for the WTRU to join includes storing steering of roaming, SoR, information for a plurality of local service hosting networks, wherein the SoR information includes an indication of a priority order in a list of network identifiers, switching to an access mode for network searching, searching for a local service hosting network to join from among the plurality of local service hosting networks, and selecting a local service hosting network to join based on the indication of the priority order in the list of network identifiers. The method may further include updating the SoR information during any one or more of a periodic procedure or a mobility registration procedure.

Methods and apparatus for steering a wireless/transmit receive unit between multiple wireless networks

A device (e.g., a WTRU, network device, such as a device comprising an access and mobility function (AMF)) may perform one or more of the following actions. The device may send a registration request via non-access stratus signaling. The registration request may include a first duration. The device may receive a registration accept message. The registration accept message may indicate whether the device is to inform the network entity when the WTRU is available. The device may determine that an unavailability event has ended. The WTRU may determine whether to inform the network entity that the WTRU is available. The device may send a registration update request, for example, based on a determination that the unavailability event has ended and a determination that the WTRU is to inform the network entity when the WTRU is available. The registration update request may indicate that the WTRU is available.

Unavailability period support associated with congestion

A reader device may receive a request including a permanent device identifier (PDI) for an ambient-power-enabled internet of things (AIoT) device. The reader device may generate an encrypted temporary device identifier (ETDI) based on application of an encryption algorithm to the PDI. Further, the reader device may obtain a short-ETDI based on application of a bitmask to the ETDI. Also, the reader device may transmit, over a radio interface, a trigger message including the short-ETDI to the AIoT device. Moreover, the reader device may receive, over the radio interface, a random access (RA) response message including the short-ETDI from the AIoT device. In an example, the request may be an inventory request, and the inventory request may be received from an AIoT function. Further, the request may include an indication that encryption is supported by the AIoT device.

Methods and apparatus for an ambient internet of things (IoT) temporary identifier at a reader

The device may be a multi-universal subscriber identity module (MUSIM) device. The device may send a first registration request to a first network, for example, to enable an unavailability period feature with the second network. The registration request may indicate a first unavailability duration. The device may determine that an unavailability event is triggered. The device may determine that the device will be unavailable for a period of time. The device may receive a first registration response, for example, a first registration accept message. The first registration response may indicate a first registration duration. The device may determine a second unavailability duration. The device may send a second registration request to a second network, for example, indicate the second unavailability duration. The device may receive a second registration response. The second registration response may be a second registration accept message. The second registration response may indicate a second registration duration.

Unavailability period support for MUSIM devices

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products for a wireless transmit/receive unit (WTRU) to determine slice availability in tracking areas (TAs) of a registration area (RA). In a representative example, the WTRU may use determined slice availability to detect changes in slice availability among different TAs. For example, the WTRU may move from a first TA of a RA where access to a first slice is unavailable to a second TA of the RA where access to the first slice is available. The WTRU may receive information during a registration procedure in the first TA that indicates the first slice is available in less than all TAs of the RA. Upon moving to the second TA, the WTRU may (e.g., again) perform a registration procedure in the second TA of the RA in order to access the first slice in the second TA.

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Ottawa, Canada

Anuj Sethi