Method and cell for determining handover of PDU session
AssigneeLG Electronics Inc.
InventorsMyungjune Youn, Hyunsook Kim, Jinsook Ryu
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Abstract
A disclosed feature of the present specification provides a method for a source cell determining a handover of a packet data unit (PDU) session. The method may include a step of determining a target cell or target next generation radio access network (NG-RAN) based on a measurement report by a terminal. A handover region list can additionally be considered in the target cell or target NG-RAN determination step. The method may include a step of transmitting a handover request message that does not include context with respect to the PDU session to the target cell or target NG-RAN, based on the handover region list, if it is confirmed that the determined target cell or target NG-RAN cannot serve for the PDU session.
Claims10
A method for determining a handover of a Packet Data Unit (PDU) session, the method performed by a source cell and comprising:
- determining, by the source cell, a target cell or a target Next Generation Radio Access Network (NG-RAN) based on a measurement report of a user equipment (UE), wherein a handover region list is additionally considered in determining the target cell or the target NG-RAN;
- and
- transmitting, by the source cell, a handover request message that does not include context with respect to the PDU session to the target cell or the target NG-RAN, based on the handover region list and the determined target cell or target NG-RAN, when the determined target cell or target NG-RAN is unable to service the PDU session, in response to the PDU session not taking place within a region in which the PDU session is to be serviced,
- wherein the determining the target cell or target NG-RAN includes:
- confirming a handover region list with respect to each of a plurality of PDU sessions, based on presence of a plurality of handover region lists;
- and
- selecting a target cell or a target NG-RAN to which a plurality of PDU sessions are all handed over, based on the plurality of handover region lists.
A cell that determines handover of a Packet Data Unit (PDU) session, the cell comprising:
- a transceiver;
- and
- a processor determining a target cell or a target NG-RAN based on a measurement report of a user equipment (UE), wherein a handover region list is additionally considered in determining the target cell or the target NG-RAN,
- wherein the processor transmits a handover request message that does not include context with respect to the PDU session to the target cell or the target NG-RAN, based on the handover region list and the determined target cell or target NG-RAN, when the determined target cell or target NG-RAN is unable to service the PDU session, in response to the PDU session not taking place within a region in which the PDU session is to be serviced, and
- wherein the determining the target cell or target NG-RAN includes:
- confirming a handover region list with respect to each of a plurality of PDU sessions, based on presence of a plurality of handover region lists;
- and
- selecting a target cell or a target NG-RAN to which a plurality of PDU sessions are all handed over, based on the plurality of handover region lists.
Dependencies are inferred from the claim text.