Example embodiments of the present disclosure relate to switching over without disconnection of access network. In an example method, a core network device receives a sensing request from a terminal device. The first apparatus receives an internal indication of the switchover from a second apparatus of the terminal device separable from the first apparatus; switches from a first context associated with the first traffic to a second context associated with the second traffic; and sends a response to the second apparatus of the terminal device to indicate that the switching is completed. In this way, the first apparatus of the terminal device can switch from the first context to the second context, without disconnection with the access network, and without interrupt of the service.

A method and apparatus are disclosed. The apparatus comprises a wireless transceiver and a processor. The apparatus transmits a data packet via a primary cell and a non-primary cell, the primary cell and the non-primary cell, wherein the data packet is sent via the primary cell and the non-primary cell over an enhanced uplink (EU) channel. On a condition that the transmitted data packet is not successfully decoded by the primary cell and also not successfully decoded by the non-primary cell, the apparatus receives a negative acknowledgement (NACK) signal from the primary cell and not receiving the NACK signal from the non-primary cell and retransmits the data packet in response to receiving the NACK signal from the primary cell even though the NACK signal was not received from the non-primary cell.

A method and base station are disclosed. The base station comprises a wireless transceiver and a processor. The base station performs wireless communications with a wireless transmit/receive unit (WTRU) via a primary cell, transmits a message via a shared channel of the primary cell, wherein the message includes information identifying a plurality of non-primary cells, and transmits, to the WTRU, data over a downlink channel of at least one of the plurality of non-primary cells identified by the message.

A method and apparatus are disclosed. The apparatus comprises a wireless transceiver and a processor. The apparatus performs wireless communications with a primary cell, receives a message via a shared channel of the primary cell, wherein the received message includes information identifying a plurality of non-primary cells, monitors downlink channels of the identified plurality of non-primary cells based on the received message, and receives data over a downlink channel of at least one of the identified plurality of non-primary cells based on the monitored downlink channels.

A method comprising: storing a received first and machine learning model instance and a received second machine learning model instance in a cache of a terminal, wherein the first machine learning model instance is associated to a first cell and configured to make, if activated, a first prediction for the terminal, and the second machine learning model instance is associated to a second cell different from the first cell and configured to make, if activated, a second prediction for the terminal; checking if a predefined first requirement is fulfilled; activating the first machine learning model instance to make the first prediction if the predefined first requirement is fulfilled; inferring a decision involving the terminal based on the first prediction if the predefined first requirement is fulfilled; inhibiting to infer the decision involving the terminal based on the second prediction if the predefined first requirement is fulfilled.

A wireless transmit/receive unit (WTRU) and a method comprising monitoring a plurality of cells for ACK/NACK information, each of the plurality of cells including a plurality of downlink channels, for each of the plurality of cells, determining a subset of the downlink channels for the cell, and, for each of the plurality of cells, monitoring the subset of downlink channels for one or more downlink messages.

User equipment included in a wireless communication system wirelessly connects to a donor base-station to establish a macro link, wirelessly connects to a mobile relay to establish an access link, and simultaneously maintains connections with the donor base-station and the mobile relay coexisting in the same coverage area, wherein a first pre-established frequency band can be used for the access link and a second pre-established frequency band can be used for the macro link. Furthermore, the user equipment can wirelessly connect to the mobile relay to establish an access link, be assigned, from the mobile relay, a wireless resource for device-to-device communication with at least one other user equipment within the same mobile relay cell, and perform device-to-device communication with the at least one other user equipment using the assigned wireless resource.

A method, wireless transmit/receive unit (WTRU), and a wireless network node configured for wireless communications comprising receiving, by the WTRU, configuration information for a primary cell and one or more non-primary cells, receiving, by the WTRU, a message on the primary cell, the received message including indication of at least one of the one or more non-primary cells from which the WTRU is to receive a downlink shared channel transmission, and in response to the received message, receiving and processing, by the WTRU, the downlink shared channel transmission from the indicated at least one of the one or more non-primary cells.

A method and a device for maintaining an emergency call service through a packet network in a mobile communication network are provided. UE using VoLTE receives identification information indicating whether an IMS Voice over PS (VoPS) is supported from a network to determine whether the IMS VoPS of the network is supported, and processes paging for a CS voice call according to the determination result if the emergency call service continues through the packet network.

A system and method of communication, comprising establishing a first connection between the user equipment and a first non-public packet switched network which assigns a first non-public packet switched network address to user equipment; establishing an open signaling channel which communicates between the user equipment and a remote server through a cellular telephone network according to a public switched telephone network address associated with an International mobile subscriber identity; communicating an identification of the first non-public network and the first non-public packet switched network address over the open signaling channel to the remote server; and establishing a real time voice communication from the remote server to the user equipment through the first connection based on a call routed through the remote server to the public switched telephone network address.