For duplicating PDCP PDUs for a radio bearer, methods, apparatus, and systems are disclosed. One apparatus includes a processor and a transceiver for communicating with a network. The processor establishes a radio bearer to communicate with the network, the radio bearer including a PDCP entity, first and second RLC entities associated with said PDCP entity, and first and second logical channels associated with said first and second RLC entities, respectively. The processor receives a control signal from the network and submits a PDCP data PDU in the PDCP entity to the first RLC entity for transmission. In response to the first control signal, the processor submits the PDCP data PDU to the second RLC entity for transmission. The processor indicates to one of the first and second RLC entities to discard a duplicate PDCP data PDU corresponding to a successfully delivered PDCP data PDU.

Methods and apparatuses are provided in a wireless communication system. A service data unit (SDU) is received from an upper layer. A protocol data unit (PDU) including a header for the SDU is generated based on an expiry of a timer for the SDU or an indication obtained from the upper layer. The PDU including the header is delivered to a lower layer. The PDU includes only the header and does not include a payload.

A user communications device having active and idle states operates in a cellular communications network in which user communications devices communicate via network communications devices of cells of the network. History data identifying the cells in which the user communications device has been present whilst in the idle state is maintained. This history data is used by the user communications device or by a network communications device to enable adjustment of cell selection/reselection parameters for the user communications device in the active state.

Aspects of the subject disclosure may include, for example, authenticating, by a federated blockchain controller, a user equipment located within a cell coverage area of a network that includes heterogeneous cells. The federated blockchain controller can provide encryption data to the user equipment and corresponding authentication information to one or more multi-access edge computing (MEC) devices associated with the heterogeneous cells to enable secure and efficient handovers for the user equipment amongst the heterogeneous cells, without a need for additional handover reauthentication procedures. Other embodiments are disclosed.

A control circuit determines that a wireless portable electronic device currently being serviced via licensed wireless spectrum should also be served via unlicensed wireless spectrum and then transmits a Radio Resource Control (RRC) message to cause the wireless portable electronic device to connect to a network node operating in the unlicensed wireless spectrum. By one approach this control circuit comprises an Evolved Node-B base station in a Long Term Evolution (LTE) Radio Access Network (RAN) and the network node operating in the unlicensed wireless spectrum comprises an 802.11-compatible wireless local area network node.

Disclosed are systems, apparatuses, methods, and computer-readable media to address bearer loss during inter-radio access technology (RAT) handovers. A method includes sending a create bearer request for establishing a service for the mobile device using a first connection; receiving a create bearer response message to setup a second connection for the mobile device to continue the service; and, in response to the create bearer response message, sending an update bearer request message to provide the mobile device with the QoS information associated with the second connection, the QoS information allowing the mobile device to verify an existing QoS flow to continue the service after the handover. In some cases, a user equipment (UE) may delete a mapping between a QoS information when a previous message does not include an evolved packet core (EPC) bearer indicator (EBI) that identifies QoS policies.

A wireless device is configured to operate in first and second access networks. The first and second access networks respectively provide access to first and second core networks of different types. A first wireless communication network includes the first access network and the first core network. A second wireless communication network includes the second access network and the second core network. The wireless device is configured to receive, from the first access network, control signaling indicating that the wireless device is to suspend a connection with the first access network and indicating a notification area within which the wireless device is allowed to move without notifying either the first and second wireless communication networks. The control signaling indicates the notification area includes one or more areas of the first wireless communication network and one or more areas of the second wireless communication network.

Methods and apparatuses are provided in a wireless communication system. A service data unit (SDU) is received from an upper layer. A protocol data unit (PDU) including a header for the SDU is generated based on an expiry of a timer for the SDU or an indication obtained from the upper layer. The PDU including the header is delivered to a lower layer. The PDU includes only the header and does not include a payload.

Embodiments of the present application relate to the technical field of communication and provide a communication system handover method, a network device, an apparatus and a medium, for handover of the communication system of a terminal. The method comprises: an AMF sends a handover request carrying first indication information to an NG-RAN node corresponding to an identifier of a target NG-RAN node; and the NG-RAN node determines the address of data forwarding according to the first indication information. In this way, the first indication information about whether a source node supports direct data forwarding or not is sent to the target NG-RAN node, so that the NG-RAN node knows whether the source node supports direct data forwarding, to achieve the purpose that the decisions of a node of an EPS system and a node of a 5G system on the data forwarding mode are consistent.

An information processing apparatus comprises a communication unit configured to communicate with an external device through a mobile communication network, and comprises: a throughput measuring unit; a throughput predicting unit configured to predict a future communication throughput; a communication rate controller; a band information acquiring unit; a communication environment information storage unit by associating; and a detection unit configured to detect at least one of a handover execution and a communication band switching, wherein if the detection unit has detected at least one of a handover execution and a communication band switching, the communication rate controller switches from controlling the communication rate based on a future communication throughput predicted by the throughput predicting unit to controlling the communication rate based on band information acquired by the communication environment information storage unit and the band information acquiring unit.