Abstract: In an aspect, the disclosure provides a method for distributing uplink data flow between different access networks in a 5G communication system. The method would include not limited to maintaining an ATSSS rules table; receiving a request to establish an uplink data flow to a DN; determining from the ATSSS rule table whether the DN is in the ATSSS rule table in response to receiving the request to establish the uplink data flow to the DN; selecting a first PDU session from the ATSSS rule table for the uplink data flow to the DN in response to having been determined that the DN is in the ATSSS rule table; and creating a second PDU session for the uplink data flow to the DN and recording the second PDU session in the ATSSS rule table in response to having been determined that the DN is not in the ATSSS rule table.

Abstract: The disclosure proposes a hierarchical registration method and related apparatus. In an aspect, the method would include registering to the 5G communication network; establishing a connection with the UE after registering to the 5G communication network; receiving a service request message of the UE for registering to the 5G communication network after establishing the connection with the UE; transmitting a first user plane message which includes the service request message of the UE to the 5G communication network; receiving from the 5G communication network an authentication response message which corresponds to the service request message of the UE and forwarding the authentication response message to the UE; and transmitting to the 5G communication network a second user plane message which includes user data of the UE after the authentication response message indicates that the UE is authorized by the 5G communication network.

Abstract: A user equipment registration method for network slice selection, and a network controller and a network communication system are provided.

Abstract: The method for location tracking used by a base station includes the following steps. Receive LADN information from AMF. Generate a radio access network (RAN) notification area of the base station based on LADN service areas according to the LADN information. Generate a LADN timer according to the LADN information. Assign the LADN timer and the RAN notification area to UE. Send the UE to RRC inactive state. Track location of the UE when the UE is in the RRC inactive state.

Abstract: A user equipment registration method for network slice selection, and a network controller and a network communication system are provided.

Abstract: A method for network sharing of multiple network operators includes steps of: providing a network sharing management proxy device adapted to be disposed between a sharing access point (AP) and a plurality of core networks of the network operators, wherein the sharing AP allows one or more end user equipment (UE) of the network operators to access; receiving a control message by the network sharing management proxy device, wherein the control message is corresponding to an UE, and the UE is an end UE of a first network operator of the network operators; checking the control message to determine that the UE is corresponding to which one of the network operators, and generating tunneling information accordingly; and transmitting the control message to a first core network of the first network operator according to the tunneling information.

Abstract: A method of sharing network resource and associated network coordination apparatus are provided. The method includes following steps. Firstly, a resource sharing request from a tenant is received. Then, a controller is requested to determine whether resource of a shared transport network is satisfied with the resource sharing request. A tenant ID is generated for the tenant when the controller determines the resource of the shared transport network is satisfied with the resource sharing request. The tenant ID is transmitted to the tenant. The controller is requested to generate at least one packet header for at least one transport service type corresponding to the each of at least one group ID, and further update a plurality of flow tables of the plurality of forward devices according to the at least one packet header.

Abstract: A method of handover is provided. It includes: performing a mobile base station tracking area update procedure; performing a mobile device tracking area update procedure; transmitting a mobile base station identity of the mobile base station to a mobile device mobility management entity corresponding to the mobile device by a fixed base station; transmitting a request for setting the mobile base station ID to the mobile device by the MD mobility management entity; writing the mobile device ID into a mobile network ID list of the mobile device by the mobile device; when the mobile device receives from the fixed base station a handover message indicating the mobile device to hand over to the mobile base station and the mobile device determines the mobile network ID list includes the mobile base station ID of the mobile base station, then, the mobile device hands over to the mobile base station.

Abstract: The disclosure provides a method of network slicing and related apparatuses using the same. According to one of the exemplary embodiments, the disclosure provides a method of network slicing used by a user equipment, and the method would include not limited to: transmitting a network slice instance (NSI) request to request a network slice instance of a plurality of network slice instances as each of the plurality of network slice instances is linked to a unique NSI identifier (ID); receiving a NSI service reply comprising a configuration information to a first network slice instance of the plurality of network slice instances in response to transmitting the NSI request; completing a setup procedure by using the configuration information; and transmitting data by using the first network slice instance.

Abstract: Accordingly, the disclosure provides a handover optimization method used by a network controller of a transport network and a network controller using the same method.

Abstract: A method for network sharing of multiple network operators includes steps of: providing a network sharing management proxy device adapted to be disposed between a sharing access point (AP) and a plurality of core networks of the network operators, wherein the sharing AP allows one or more end user equipment (UE) of the network operators to access; receiving a control message by the network sharing management proxy device, wherein the control message is corresponding to an UE, and the UE is an end UE of a first network operator of the network operators; checking the control message to determine that the UE is corresponding to which one of the network operators, and generating tunneling information accordingly; and transmitting the control message to a first core network of the first network operator according to the tunneling information.

Abstract: The present disclosure illustrates a method for PET attenuation correction, and the method includes the steps: computing linear attenuation coefficients and mean CT numbers of water, various iodine contrasts and a plant oil-based phantom, to generate energy-mapping curve data by ANN; providing an object to be detected, and reconstructing CT data to generate a CT image after the object is scanned by CT and PET respectively; introducing the CT numbers of pixels the CT image into the energy-mapping curve to generate an attenuation map; computing the attenuation map to generate an attenuation correction factor; multiplying the PET image by the attenuation correction factor to generate a corrected PET sinogram, and reconstructing the corrected PET sinogram to generate a corrected PET image.