A method for gathering small cells is provided. In the method, an instruction gathering device gathers connections of the small cells for transmitting control packets, and provides at least two virtual cells to process the connections. When a user device switches the connection to another small cell, the instruction gathering device also assigns another virtual cell to process the control packets related to the user device. The virtual cells partially replace contents of the control packets before forwarding the control packets.

The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting higher data rates. A method performed by a terminal performing a slice-based cell reselection in a wireless communication system is provided. The method includes obtaining information on a network slice access stratum group (NSAG) from a non-access stratum (NAS), in case that a cell in a frequency fulfils cell reselection criteria and does not support the NSAG, identifying whether the cell supports at least one NSAG other than the NSAG, and rederiving a reselection priority for the frequency based on a result of the identification.

A method for gathering small cells is provided. In the method, an instruction gathering device gathers connections of the small cells for transmitting control packets, and provides at least two virtual cells to process the connections. When a user device switches the connection to another small cell, the instruction gathering device also assigns another virtual cell to process the control packets related to the user device. The virtual cells partially replace contents of the control packets before forwarding the control packets.

The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4.sup.th-Generation (4G) communication system such as Long Term Evolution (LTE). A handover method for a terminal according to one embodiment of the present disclosure may include: receiving, from a source cell, a message including information on one or more target cells for performing a fast handover; and performing a fast handover by reusing a radio bearer based on the received information.

Aspects of the present disclosure relate to a mechanism to enable interworking between fifth generation system (5GS) network slicing and evolved packet core (EPC) connectivity. In an example, techniques are provided for existing packet data unit (PDU) sessions that provide connectivity to a network slice from a set of network slices. Connectivity to the network slice is in response to a user equipment (UE), that uses network slices, moving between a 5G network and a 4G network. The existing PDU sessions are connected to a dedicated EPC core network that supports the same services provided by the network slice.

Provided is a user equipment maximum bandwidth control method and device, and computer storage medium. The method includes that a gNodeB acquires a first user equipment-aggregated maximum bit rate (UE-AMBR) and an aggregated maximum bit rate (AMBR) corresponding to all established protocol data unit (PDU) sessions from a core network; the gNodeB calculates a second UE-AMBR based on the first UE-AMBR and the AMBR corresponding to all the established PDU sessions; and the gNodeB executes bandwidth control on a Non-Guaranteed Bit Rate (Non GBR) service of a user equipment (UE) in accordance with the second UE-AMBR.

A wireless communication network receives a first Subscriber Identity Module (SIM) profile from a User Equipment (UE) and authenticates the UE based on the first SIM profile. The network receives a first slice request from the UE and authorizes a first wireless network slice for the UE based on the authentication of the first SIM profile and the first slice request. The network receives a second SIM profile from the UE and authenticates the UE based on the second SIM profile. The network receives a second slice request from the UE and authorizes a second wireless network slice for the UE based on the authentication of the second SIM profile and the second slice request. The network wirelessly exchanges first slice data with the UE over the first wireless network slice, and simultaneously, exchanges second slice data with the UE over the second wireless network slice.

Techniques for enhancing subscription authorization in a communications network are provided. For example, a method in a source network function service producer or an apparatus for a source network function service provider is disclosed. The method comprises: receiving a subscription request including access authorization information from a network function service consumer for a subscription to receive a notification upon occurrence of a specific event; verifying that the network function service consumer is authorized to create the subscription to the source network function service producer; storing subscription context and access authorization information granted for the subscription if the subscription request is authorized.

Various embodiments generally may relate to Load Balancing Optimization (LBO) and Mobility Robustness Optimization (MRO). Some embodiments of this disclosure are directed to the following 5G SON solutions: use cases and requirements for the management of distributed LBO and centralized LBO; procedures for the management of distributed LBO and centralized LBO; and management services and information needed to support the management of distributed LBO and centralized LBO.

A Hybrid Automatic Repeat reQuest (HARQ) method and an apparatus in a communication system are provided. The method includes receiving, by a Subscriber Station (SS), first data from at least one first member Base Station (BS) among member BSs of a cooperative cell, when the cooperative cell is configured with the member BSs to provide a communication service to the SS, generating a response signal indicating a reception result of the first data, and transmitting the response signal to at least one predefined second member BS from among the member BSs. The member BSs include a master BS for controlling communication of the member BSs and at least one slave BS for communicating with the SS under the control of the master BS.