Abstract: A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.

Abstract: Embodiments of the present disclosure provide methods and apparatuses for multicast/broadcast service (MBS). A method performed by a user equipment (UE) comprises receiving a paging message comprising a first multicast/broadcast service (MBS) session identifier (ID) from a radio access network node. The method further comprises transmitting a service request to the radio access network node in response to the paging message. The service request comprises the first MBS session ID and first information indicating an identifier (ID) of a first protocol data unit (PDU) session associated to a first MBS session identified by the first MBS session ID.

Abstract: Disclosed herein is a method of operation of a wireless device to provide service gap control in a wireless communication system, comprising: receiving a service gap parameter from a network entity in a mobility management sublayer non-access stratum message, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and enforcing the service gap parameter at the wireless device in a non-access stratum layer. Also disclosed herein is a method of operation of a core network entity in a core network of a wireless communication system to provide service gap control, comprising: obtaining a service gap parameter for a wireless device, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and sending by the core network entity the service gap parameter to the wireless device via a mobility management sublayer non-access stratum message.

Abstract: According to some embodiments, a method performed by a wireless device comprises: obtaining, from a non-access stratum (NAS) communication layer, an initial NAS protocol data unit (PDU) for potential early data transmission; determining, by an access-stratum (AS) communication layer, whether the initial NAS PDU is intended to be delivered when an associated radio resource control (RRC) connection is resumed successfully; and upon determining that the initial NAS PDU is not intended to be delivered when the associated RRC connection is resumed successfully, transmitting an early data transmission including the initial NAS PDU.

Abstract: The disclosure provides a method performed by a wireless device for providing capability information. The method comprises: receiving a first message from a base station, the first message comprising an indication of a capability filter; utilizing the capability filter to generate a filtered set of capabilities of the wireless device; applying a hash function to the filtered set of capabilities to generate a hash value; and transmitting a second message to the base station, the second message comprising the hash value.

Abstract: A method performed by a user equipment, UE, and a UE is provided. The method includes obtaining tracking area codes, TACs, broadcast in a cell of a network. The method includes responsive to none of the broadcast TACs being a last previously selected TAC in the UE, selecting, by a non-access stratum, NAS, layer or an access stratum, AS, layer of the UE, one TAC of the broadcast TACs to be a current TAC of the UE.

Abstract: A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.

Abstract: According to some embodiments, a method for early data transmission performed by a wireless device comprises: obtaining, from a non-access stratum (NAS) communication layer, an initial NAS protocol data unit (PDU) for early data transmission; determining, by a radio resource control (RRC) communication layer, to initiate early data transmission based at least in part on a size of the initial NAS PDU; and transmitting an early data transmission including the initial NAS PDU.

Abstract: A method performed by a network node, for handling User Equipment, UE, capabilities of a UE in a wireless communications network is provided. The network node sends (501) to the AMF node (130), a first indication indicating whether or not the network node (110) has capabilities to store UE capabilities associated with the UE capability ID. The network node receives (502) from an AMF node, a second indication indicating whether or not UE capabilities associated with a capability identity of the UE, UE capability ID, are UE available in the AMF node. The network node decides (503) whether explicit UE capabilities associated with the UE capability ID shall be retrieved from the UE or the AMF node based on the received first and second indication.

Abstract: Disclosed herein is a method for operating a radio access network (RAN) node of a wireless communication network.

Abstract: A method may be provided at a wireless terminal to support communications with a network node of a wireless communication network. An IKE SA may be initiated to establish a NAS connection between the wireless terminal and the network node through a non-3GPP access network and a non-3GPP interworking function network node. After initiating the IKE SA, an IKE authorization request may be transmitted through the non-3GPP access network to the N3IWF network node, with the IKE authorization request including an identifier of the wireless terminal. An access network key may be derived for the NAS connection through the non-3GPP access network at the wireless terminal, with the access network key being derived based on a NAS count for the wireless terminal and an anchor key. An IKE authorization response corresponding to the IKE authorization request may be received.

Abstract: A message authentication code, for a message transmitted and received over a communications network, is formed by applying inputs to an integrity algorithm acting on the message. The inputs comprise: an integrity key; a value indicating a transfer direction; and a frame-dependent integrity input, wherein the frame-dependent integrity input is a frame-dependent modulo count value that also depends on a random value and on a frame-specific sequence number.

Abstract: Systems and methods for enabling User Equipments (UEs) to use a Public Land Mobile Network (PLMN) failing service under disaster conditions and to receive services from alternative PLMNs. In some embodiments, a method performed by a first network node comprises receiving, from a second network node, a first disaster roaming PLMN list. The method also comprises determining that a UE is to be authenticated. The method further comprises providing, to a third network node, a request including the disaster roaming PLMN list, responsive to determining that the UE is to be authenticated. In this way, an interruption of the service at the UE is minimized in case of the disaster conditions.

Abstract: A wireless device and an Access and Mobility Management Function (AMF) and methods performed by a wireless device and an AMF, respectively.

Abstract: A method performed by a target network node for interworking handover from an evolved packet system, EPS, to a fifth generation system, 5GS, in a mobile network is provided. The method includes receiving, from a source network node, a determined user plane, UP, encryption policy. The method further includes providing the determined UP encryption policy to a target radio access network node. Corresponding embodiments for methods performed by a source network node and a first target network node are also provided.

Abstract: A method may be provided at a wireless terminal to support communications with a network node of a wireless communication network. An IKE SA may be initiated to establish a NAS connection between the wireless terminal and the network node through a non-3GPP access network and a non-3GPP interworking function network node. After initiating the IKE SA, an IKE authorization request may be transmitted through the non-3GPP access network to the N3IWF network node, with the IKE authorization request including an identifier of the wireless terminal. An access network key may be derived for the NAS connection through the non-3GPP access network at the wireless terminal, with the access network key being derived based on a NAS count for the wireless terminal and an anchor key. An IKE authorization response corresponding to the IKE authorization request may be received.

Abstract: Systems and methods for enabling notification of disaster conditions and alternative Public Land Mobile Networks (PLMNs) to network nodes are disclosed. In one embodiment, a method performed by a User Equipment (UE) for responding to a disaster condition in a first PLMN, comprises determining that a first PLMN is not available; determining that a second PLMN is available for disaster roaming; and attempting to register with the second PLMN, responsive to determining that the first PLMN is not available due to the disaster condition and determining that a second PLMN is available for disaster roaming. In this way, a UE is informed of the failure of its currently used PLMN due to a disaster condition and a service may be provided in another PLMN, where the UE under normal conditions may not be allowed to receive a service from the second PLMN.

Abstract: Disclosed herein is a method performed by a network node and a network node for handling User Equipment, UE, Parameters Update, UPU, data set types which may not be supported by a UE, the method comprising one or more of: receiving an indication of UPU data set types supported by a UE; determining if a given UPU data set type is supported by the UE based on the indication; if the given UPU data set type is supported by the UE, sending a UPU message to the UE with the given UPU data set type; and if the given UPU data set type is not supported by the UE, not sending the UPU message to the UE with the given UPU data set type.

Abstract: Embodiments here in relate to methods for message handling performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE. Particularly, embodiments herein relate to methods for handling service requests performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE.

Abstract: A network node in a wireless communication system configures an operator policy to indicate whether to accept legacy user equipments, UEs, that do not support user plane integrity protection, UP IP, and it sets UP IP to be either “preferred” or “not required” of a UP security policy based on the operator policy indicating acceptance of legacy UEs and in response to a communication related to a legacy UE.