Method and apparatus for controlling data transmission according to quality of service in wireless communication system

1 . A method of an access and mobility management function (AMF) in a wireless communication system, the method comprising:

receiving, from a user equipment (UE), protocol data unit (PDU) session establish request information for supporting a plurality of groups;

transmitting a first PDU session establish request message to a selected first session management function (SMF) and a second PDU session establish request message to a selected second SMF, respectively; and

receiving, from the first SMF, a first PDU session establish response message,

wherein the first SMF that matches a first group is selected among the plurality of groups and the second SMF that matches a second group is selected among the plurality of groups, respectively, based on the received PDU session establish request information,

wherein the first PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups, and

wherein the second PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups.

2 . The method of claim 1 , wherein a first quality of service (QoS) is configured for the first group and a second QoS is configured for the second group.

3 . The method of claim 1 , wherein the first PDU session establish request message further comprises first partial indication information indicating that the first SMF controls the first group, and

wherein the second PDU session establish request message further comprises second partial indication information indicating that the second SMF controls the second group.

4 . The method of claim 3 ,

wherein the first PDU session establish request message further comprises an SMF list,

wherein the second PDU session establish request message further comprises the SMF list, and

wherein the SMF list comprises information associated with the first SMF and information associated with the second SMF.

5 . The method of claim 1 , further comprising receiving, from the second SMF, a second PDU session establish response message,

wherein the first PDU session establish response message comprises information associated with the first group, and

wherein the second PDU session establish response message comprises information associated with the second group.

6 . The method of claim 5 , further comprising transmitting, to the UE, a PDU session establish response message,

wherein the PDU session establish response message comprises information associated with the received first PDU session establish response message and information associated with the received second PDU session establish response message.

7 . A method of a first session management function (SMF) in a wireless communication system, the method comprising:

receiving, from an access and mobility management function (AMF), a protocol data unit (PDU) session establish request message; and

transmitting, to the AMF, a PDU session establish response message,

wherein the first SMF and a second SMF are selected based on PDU session establish request information for supporting a plurality of groups including a first group and a second group received from a user equipment (UE) by the AMF, and the first SMF matches the first group among the plurality of groups and the second SMF matches the second group among the plurality of groups, respectively, and

wherein the PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups.

8 . The method of claim 7 , wherein a first quality of service (QoS) is configured for the first group and a second QoS is configured for the second group.

9 . The method of claim 7 , wherein the PDU session establish request message further comprises first partial indication information indicating that the first SMF controls the first group.

10 . An access and mobility management function (AMF) in a wireless communication network, the AMF comprising:

a transceiver configured to transmit or receive a signal; and

a controller operably coupled to the transceiver, the controller configured to:

receive, from a user equipment (UE), protocol data unit (PDU) session establish request information for supporting a plurality of groups,

transmit a first PDU session establish request message to a selected first session management function (SMF) and a second PDU session establish request message to a selected second SMF, respectively, and

receive, from the first SMF, a first PDU session establish response message,

wherein the first SMF that matches a first group is selected among the plurality of groups and the second SMF that matches a second group is selected among the plurality of groups, respectively, based on the received PDU session establish request information,

wherein the first PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups, and

wherein the second PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups.

11 . The AMF of claim 10 , wherein a first quality of service (QoS) is configured for the first group and a second QoS is configured for the second group.

12 . The AMF of claim 10 , wherein the first PDU session establish request message further comprises first partial indication information indicating that the first SMF controls the first group, and

wherein the second PDU session establish request message further comprises second partial indication information indicating that the second SMF controls the second group.

13 . The AMF of claim 12 ,

wherein the first PDU session establish request message further comprises an SMF list,

wherein the second PDU session establish request message further comprises the SMF list, and

wherein the SMF list comprises information associated with the first SMF and information associated with the second SMF.

14 . The AMF of claim 10 , wherein the controller is further configured to receive, from the second SMF, a second PDU session establish response message,

wherein the first PDU session establish response message comprises information associated with the first group, and

wherein the second PDU session establish response message comprises information associated with the second group.

15 . The AMF of claim 14 , wherein the controller is further configured to transmit, to the UE, a PDU session establish response message, and

wherein the PDU session establish response message comprises information associated with the received first PDU session establish response message and information associated with the received second PDU session establish response message.

16 . A first session management function (SMF) in a wireless communication network, the first SMF comprising:

a transceiver configured to transmit or receive a signal; and

a controller operably coupled to the transceiver, the controller configured to:

receive, from an access and mobility management function (AMF), a protocol data unit (PDU) session establish request message, and

transmit, to the AMF, a PDU session establish response message,

wherein the first SMF and a second SMF are selected based on PDU session establish request information for supporting a plurality of groups including a first group and a second group received from a user equipment (UE) by the AMF, and the first SMF matches the first group among the plurality of groups and the second SMF matches the second group among the plurality of groups, respectively, and

wherein the PDU session establish request message comprises information associated with the first group and the second group among the PDU session establish request information for supporting the plurality of groups.

17 . The first SMF of claim 16 , wherein a first quality of service (QoS) is configured for the first group, and a second QoS is configured for the second group.

18 . The first SMF of claim 16 , wherein the PDU session establish request message further comprises first partial indication information indicating that the first SMF controls the first group.

19 . The method of claim 1 , wherein the PDU session establish request information comprises information on a data network name (DNN) associated with the first group and the second group among the plurality of groups.

20 . The AMF of claim 10 , wherein the PDU session establish request information comprises information on a data network name (DNN) associated with the first group and the second group among the plurality of groups.