A method includes determining whether user equipment (UE) in a telecommunication network is configured to support evolved universal terrestrial radio access network dual connectivity (ENDC). Responsive to the UE being determined as configured to support the ENDC determining whether a source cell and a target cell are configured to support the ENDC. Performing on processing circuitry a first mobility modification in response to determining the source cell is an ENDC source cell and the target cell is a non-ENDC target cell. Performing on the processing circuitry a second mobility modification in response to determining the target cell is an ENDC target cell and the source cell is a non-ENDC source cell. The second mobility modification is different from the first mobility modification. Performing a handover from the source cell to the target cell in response to both the source cell and the target cell being configured for ENDC or non-ENDC.

Various aspects of the present disclosure generally relate to wireless communication and more particularly to hybrid measurements and reporting for Layer 1 (L1)/Layer 2 (L2) triggered mobility (LTM). Some aspects more specifically relate to a UE performing filtered measurements of one or more LTM candidate cells. In some aspects, the hybrid measurements and reporting may be associated with measurements using Layer 3 type measurements and reporting using L1 type reports for LTM. In some aspects, one or more cells, from the one or more LTM candidate cells, may be selected (for example, by the UE or by a network node) for L1 measurement or reporting associated with the filtered measurement values. In some aspects, the UE may transmit an L1 measurement report indicating L1 measurement values of the one or more cells. A network node may perform one or more operations in response to the L1 measurement values.

The disclosure is directed to a cell re-selection method used by a user equipment and a user equipment using the same method. In an aspect, the disclosure is direct to a cell re-selection method which is used by a user equipment and includes obtaining a recommended cell list; storing one or more first cells after a signal quality measurement; determining a second cell from the first cells based on the signal quality measurement; determining whether the second cell belongs to the recommended cell list; and performing cell reselection to the second cell in response to having determined that the second cell belongs to the recommended cell list.

The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). An operating method of a user equipment (UE) in a mobile communication system is provided. The operating method includes receiving a service through a first enhanced node B (eNB) for a first time interval period from a first timing point; and receiving the service through a second eNB for a second time interval period from a second timing point, wherein the first timing point is different from the second timing point.

Disclosed are a control method for supporting multiple connections in a mobile communication system and an apparatus for supporting multiple connections. In the method for supporting the multiple connections to be performed in first and second base stations, a first base station receives the measured results for multiple connections from a terminal, determines whether the plurality of connections are set on the basis of the measured results, transmits the information for setting the multiple connections to the second base station when setting the multiple results, and the second base station generates the control information for setting the multiple connections of the terminal on the basis of the information for setting the multiple connections received from the first base station. Thus, the multiple connections can be easily supported and the performance of the mobile communication system can be improved therethrough.

An LTE base station facilitates handoffs in an LTE communication system. The LTE base station is configured to exchange session communications with a UE and receive session information transmitted from an LTE communication control system, the session information including a media type of the communication session and a vector associated with the UE. The LTE base station is further configured to identify a plurality of candidate base stations within a proximity threshold to a path of the vector associated with the UE, poll the plurality of candidate base stations for capability information, process the capability information to determine a set of the candidate base stations that support the media type of the communication session, select a target base station for a handoff from the set of the candidate base stations that support the media type, and instruct the UE to initiate the handoff to the target base station.

A Method and Apparatus for multi-SIM operation during handover is provided. The method includes receiving an RRC reconfiguration message from a base station including configuration of terminal assistance information related to an RRC state transition; initiating a terminal assistance information process based on said configuration information in said RRC control message; and initiating one of T1 and T2 based on UEAssistanceInformation, receiving an RRCReconfiguration message including a ReconfigWithSync for a target SpCell, sending an RRCReconfigurationComplete message from said target SpCell, initiating transmission of a UEAssistanceInformation after successful completion of a random access procedure at the target SpCell, and initiating T2 after initiating transmission of the UEAssistanceInformation if said UEAssistanceInformation includes a musim-PreferredRRC-State IE.

A method and apparatus for secondary base station change in a mobile communication system with multiple are provided. Method for secondary node change includes transmitting to a target SN a control message requesting conditional secondary node change, receiving from the target SN a Xn message including conditional secondary node change information, transmitting to a terminal LTE DL message for conditional secondary node change, receiving from the terminal a 1st LTE UL message including a transaction identifier, receiving from the terminal a conditional reconfiguration identifier and transmitting to a source SN a control message for data forwarding.

Embodiments of a user equipment (UE), an access node and a slice-based handover method are provided. In an embodiment of the method, a service request is sent from a UE to an access node. Multiple candidate slice instances provided by cells of the access node and its neighbor nodes that support the service request are then selected. Various measurement objects with respect to each candidate slice instance are measured and a measurement report is sent to the access node by the UE. A target cell with at least one slice instance that supports the service request is decided from the candidate slice instances according to the measurement report. Finally, a control command is sent to the UE by the access node to configure a connection between the UE and the target cell.

A system that incorporates the subject disclosure may include, for example, determining a mobility speed group assignment for a mobile communication device having a radio resource control connection with a wireless network where the mobility speed group assignment is selected from among a plurality of mobility speed groups according to a speed of the mobile communication device, determining a cell size for a serving cell of the wireless network that is providing the radio resource control connection, and selecting a handover policy based on the mobility speed group assignment and the cell size. Other embodiments are disclosed.