A method in a network node is disclosed. The method comprises sending one or more packet data convergence protocol (PDCP) packet data units (PDUs) to a second network node on an internode interface, each of the one or more PDUs having an associated PDCP sequence number and an associated internode interface specific sequence number, the internode interface specific sequence numbers assigned by the network node. The method further comprises receiving feedback from the second network node.

A method includes acquiring first information and second information from a terminal device, transmitting a second portion of data from the first storage device to a second storage device coupled to the second base station based on a determination to transfer the second portion of the data, determining whether to change a communication destination of a first communication of the terminal device from the first base station to the second base station based on the first information and the second information, changing the communication destination from the first base station to the second base station after the data is transmitted from the first storage device to the second storage device, and transmitting a segment of the second portion of the data from the second storage device to the terminal device after the communication destination is changed from the first base station to the second base station.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first node in a wireless communication system, including receiving, from a second node, downlink user data through a first radio bearer, the downlink user data including multicast service data; transmitting, to at least one UE, the downlink user data through a second radio bearer; and transmitting, to the second node, a downlink data delivery status including PDCP sequence number information, wherein the PDCP sequence number information includes a higher PDCP sequence number between a highest PDCP sequence number successfully delivered in sequence associated with a first transmission mode and a highest PDCP sequence number transmitted to lower layers associated with a second transmission mode.

This disclosure relates to methods for handling uplink frames in access point assisted roaming in a wireless local area network. A wireless device may establish a wireless association with a first access point. The wireless device may perform signaling to transition from the first access point to a second access point. The signaling may include an uplink reorder buffer handling request.

Techniques for wireless device roaming are disclosed. These techniques include identifying a wireless client entity for roaming from a first infrastructure entity to a second infrastructure entity. The techniques further include agreeing, between the client entity and the first infrastructure entity, on one or more roaming conditions defined using transition parameters for transition of a first data flow for the client entity from the first infrastructure entity to the second infrastructure entity, the one or more transition parameters including a sequence number relating to the dataflow. The techniques further include determining that a first condition defined in terms of a transition parameter of the agreed one or more roaming conditions is met, and, based on the determining, transitioning from providing the first dataflow from the first infrastructure entity to the client entity to providing the first data flow from the second infrastructure entity to the client entity.

A method of operating a wireless device (300) is described. The method includes providing (1001) a connection with a source access node. The method also includes receiving (1005) a handover command from the source access node while providing the connection with the source access node. The method also includes establishing (1009) a connection with a target access node responsive to receiving the handover command. The method further includes transmitting (1019) uplink data to the source access node after establishing the connection with the target access node. Related wireless devices are also discussed.

Improved capabilities are described for increasing the bandwidth in a wireless communication network, such as where host computers provide publish-subscribe broker services to a sensor device and a communicating entity. A queuing service application may provide service packet continuity when the sensor device or the communicating entity moves between two wireless RF access nodes (in the same or different wireless networks). The publish-subscribe broker network is adapted to route packets of sensor data, on behalf of the sensor device that publishes the sensor data, to a sensor-processing application, wherein the sensor-processing application subscribes to the sensor data, and wherein the sensor-processing application generates application data that is at least in part sensor data from the sensor device. The publish-subscribe broker network is adapted to route packets of the application data, on behalf of the sensor-processing application that publishes the application data, to the communicating entity if the communicating entity subscribes to the application data. The queuing service application connects to the publish/subscribe broker network and subscribes to receive packets of the application data matching the packets being sent to the communicating entity, wherein the queuing service application makes available the matching application data packets to replace application data packets that the communicating entity did not receive during a time when the sensor device or the communicating entity transitions between connections with the two wireless RF access nodes.

A method and apparatus for forwarding data in a wireless communication system is provided. A small cell receives an indication which indicates stopping serving a small cell service from a macro eNodeB (eNB). Upon receiving the indication, the small cell starts to forward data to the macro eNB together with a sequence number (SN) status transfer message. The indication may be received via a form of a message or a form of an information element (IE) in a message.

A system is proposed to provide handover in a mobile telecommunications environment, particularly applicable to 3GPP networks, which does not increase signalling overhead but minimizes user data loss during handover. In the modified system, PDCP SDUs with Sequence numbers are buffered and retransmitted as necessary. At the time of handover, SDUs not received by the user device are forwarded to the target base station for forward transmission to the UE. The handover procedure is designed to minimize packet loss while keeping to a minimum the duplication of packet transmission over the air interface.

Improved capabilities are described for increasing the bandwidth in a wireless communication network, such as where local optimization servers and centralized optimization servers are connected to a communication network, and wherein at least one wireless RF access node comprises a scheduler for providing uplink and downlink air interface access to the plurality of mobile devices that access the at least one wireless RF access node. The local optimization server may include an application priority service that interfaces with the scheduler to convey to the scheduler an air interface data rate priority value that is assigned to a first mobile device, wherein the scheduler provides uplink and downlink air interface access to the first mobile device based at least in part on the air interface data rate priority value. A topic carried in each data packet that traverses a publish-subscribe broker network may be used by first and the second publish-subscribe broker communication facilities to determine how to route each data packet, and the topic may also be used to identify the application associated with the data packet and to determine the data rate priority value corresponding to the identified application.