In a method, an IAB donor obtains configuration information of a backhaul radio link control channel BH RLC CH, where the configuration information of the BH RLC CH is configuration information of a BH RLC CH between a first integrated access and backhaul IAB node and a source parent node of the first IAB node. Then, the IAB donor sends the configuration information of the BH RLC CH to a target parent node of the first IAB node.

A method, communication device, and computer readable medium for data inactivity timer control in order to improve the reliability of data transmission. The reliability of the data transmission is improved by: determining an operation for starting a data inactivity timer according to whether a terminal is in a dual active protocol stack (DAPS) handover process in response to the occurrence of a data inactivity timer starting event.

A method and a device for recovering a call service in a mobile communication system are provided. The method includes the following steps determining whether a second cell satisfies a condition for a terminal to perform an IP multimedia subsystem (IMS) registration when detecting that the terminal enters the second cell during a period in which the terminal waits for a next IMS registration due to an IMS registration failure in a first cell, initiating an initial IMS registration when determining that the second cell satisfies the condition, and recovering a call service of the terminal after the initial IMS registration is successful.

The present disclosure proposes a method and a device for reporting information related to handover in a next generation mobile communication system. A method performed by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of acquiring configuration information related to dual active protocol stack (DAPS) handover, after execution of the DAPS handover is triggered on the basis of the configuration information, identifying failure in a radio link between the terminal and a source cell, and transmitting information on the failure in the radio link.

A technique for performing a context transfer from a first session management entity to a second session management entity in a mobile communication system is provided, wherein the context transfer concerns a data session associated with a User Equipment, UE, wherein the data session is handled by the first session management entity via a first gateway entity and wherein, after the context transfer, the data session is to be handled by the second session management entity via a second gateway entity. A method implementation of the technique is performed by the second session management entity and comprises, while the UE is in an inactive state, triggering (S302) sending, to the second gateway entity, a session establishment request to establish a new session handling the data session via the second gateway entity, and triggering (S304) providing, to the second gateway entity, an old Internet Protocol, IP, address assigned to the UE as part of an old session handling the data session via the first gateway entity, requesting the second gateway entity to assign the old IP address to the UE as part of the new session, besides a new IP address assigned to the UE as part of the new session, and, when the UE enters an active state from the inactive state, triggering (S306) providing the new IP address to the UE.

A connection recovery method for recovering a connection between a communications apparatus and a data network includes: receiving a first message indicating a non-3GPP access from the 3GPP network device in a CM-IDLE state in the non-3GPP access network; transmitting a second message to the 3GPP network device via 5GMM protocol over 3GPP control plane to establish the user plane resources for the non-3GPP PDU session; receiving a third message indicating that the user plane resources cannot be reestablished; and transmitting to the 3GPP network device a service request message via the 5GMM protocol over the 3GPP Internet PDU session of 3GPP user plane to reestablish the user plane resources, or a PDU session establishment request message via 5GSM protocol over the 3GPP control plane to handover the non-3GPP PDU session from the non-3GPP access network to the 3GPP access network in response to the third message.

A method is disclosed for providing IP access across packet data network gateways (PGWs), comprising: receiving, from a UE, at a coordinating node, an attach request; sending a request to create a first new session to a first PGW; sending a request to create a second new session to a second PGW; receiving, from the first PGW and at the coordinating node, a first request for policies for the UE; receiving, from the second PGW and at the coordinating node, a second request for policies for the UE; opening a first data tunnel from the coordinating node to the first PGW; opening a second data tunnel from the coordinating node to the second PGW without closing the first data tunnel; and opening a data tunnel between the UE and the coordinating node for providing IP access to both the first PGW and the second PGW.

A method of data communication includes receiving, by a first wireless access gateway (WAG), at least a first data packet corresponding to a first data flow transmitted from user equipment (UE) and receiving, by a second WAG, at least a second data packet transmitted from the UE. In response to receiving the second data packet, the second WAG determines an identity of the first WAG, and in response to determining the identity of the first WAG, the method includes establishing a tunnel connection between the first WAG and the second WAG. After establishing the tunnel connection, the method includes receiving by the second WAG at least a third data packet corresponding to the first data flow transmitted from the UE, and the second WAG transmits to the first WAG, via the tunnel connection, the third data packet.

Disclosed are methods, circuits, devices, systems and functionally associated computer executable code to Facilitate Edge Computing on a mobile communication network. According to some embodiments, there may be provided a mobile data communication network comprising two or more Mobile Edge Computing MEC Zones, wherein a first MEC Zone is communicatively coupled to a first set of network access points which are adapted to communicated with User Equipment (UE) and includes at least one Edge Processing Host adapted to run a server-side application accessible to a client application running on an EU communicating with a network access point of the first set of network access points. The network may include an Edge Processing Connectivity Manager (EPCM) to provide application session continuity for the client application and the server-side application when the UE switches its network connection from an access point of said first MEC zone to an access point communicatively coupled to an access point coupled to a second MEC zone.

The present application is at least directed an apparatus including a non-transitory memory and a processor that is operably coupled to the non-transitory memory for managing a server transition with a service for user equipment (UE). The processor is configured to perform the instructions of receiving, at a core network, a first request from a first server to switch responsibility of the service to a second server to communicate with the UE. The processor is also configured to perform the instructions of determining a first core network terminating point needs updating to a second core network terminating point. The processor is further configured to perform the instructions of selecting the second core network terminating point sends a result of the determination to the user equipment. The processor is still further configured to perform the instructions of sending, to the service, a notification the user equipment is associated with the second core network terminating point. The processor is still yet even further configured to perform the instructions of transmitting, to the UE, a second message notifying the UE characteristics of a session have changed.