Apparatus and method for slice control and cell control in wireless communication system

1 . A method performed by a distributed unit (DU), the method comprising:

transmitting, to a near-real time (near-RT) radio access network (RAN) intelligent controller (RIC), an E2 report message including resource policy information related to a shared resource, a prioritized resource, and a dedicated resource of a radio resource for a radio resource management (RRM) policy member list (rRMPolicyMemberList);

receiving, from the RT RIC, an E2 control message generated based on the resource policy information; and

performing a resource allocation based on the E2 control message,

wherein the resource policy information includes an RRM policy maximum ratio (rRMPolicyMaxRatio), an RRM policy minimum ratio (rRMPolicyMinRatio) and an RRM policy dedicated ratio (rRMPolicyDedicatedRatio),

wherein each of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio are indicated with an integer between 0 and 100,

wherein the shared resource is determined based on a difference between the rRMPolicyMaxRatio and the rRMPolicyMinRatio,

wherein the prioritized resource is determined based on a difference between the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio, and

wherein the dedicated resource is determined based on the rRMPolicyDedicatedRatio.

2 . The method of claim 1 ,

wherein the rRMPolicyMemberList are subject to the resource policy information;

wherein the rRMPolicyMaxRatio indicates a maximum percentage of radio resources that can be used by the rRMPolicyMemberList;

wherein the rRMPolicyMinRatio indicates a minimum percentage of the radio resources that can be used by the rRMPolicyMemberList; and

wherein the rRMPolicyDedicatedRatio indicates a percentage of radio resources that can be dedicatedly used by the rRMPolicyMemberList.

3 . The method of claim 1 , wherein the E2 control message includes at least one of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio.

4 . The method of claim 1 , further comprising,

transmitting, to the near-RT RIC, information related to O1 interface configuration.

5 . A method performed by a near-real time (near-RT) radio access network (RAN) intelligent controller (RIC), the method comprising:

receiving, from a distributed unit (DU), an E2 report message including resource policy information related to a shared resource, a prioritized resource, and a dedicated resource of a radio resource for a radio resource management (RRM) policy member list (RMPolicyMemberList); and

transmitting, to the DU, an E2 control message generated based on the resource policy information,

wherein the resource policy information includes an RRM policy maximum ratio (RMPolicyMaxRatio), an RRM policy minimum ratio (rRMPolicyMinRatio) and an RRM policy dedicated ratio (rRMPolicyDedicatedRatio),

wherein each of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio are indicated with an integer between 0 and 100,

wherein the shared resource is determined based on a difference between the rRMPolicyMaxRatio and the rRMPolicyMinRatio,

wherein the prioritized resource is determined based on a difference between the rRMPolicyMinRatio and the rRMPolicy DedicatedRatio, and

wherein the dedicated resource is determined based on the rRMPolicyDedicatedRatio.

6 . The method of claim 5 ,

wherein the rRMPolicyMemberList are subject to the resource policy information;

wherein the rRMPolicyMaxRatio indicates a maximum percentage of radio resources that can be used by the rRMPolicyMemberList;

wherein the rRMPolicyMinRatio indicates a minimum percentage of the radio resources that can be used by the rRMPolicyMemberList; and

wherein the rRMPolicyDedicatedRatio indicates a percentage of radio resources that can be dedicatedly used by the rRMPolicyMemberList.

7 . The method of claim 5 , wherein the E2 control message includes at least one of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio.

8 . The method of claim 5 , further comprising,

receiving, from the DU, information related to O1 interface configuration.

9 . A device of a distributed unit (DU), the device comprising:

at least one transceiver comprising circuitry; and

at least one processor comprising circuitry, wherein the at least one processor is individually and/or collectively configured to:

transmit, to a near-real time (near-RT) radio access network (RAN) intelligent controller (RIC), an E2 report message including resource policy information related to a shared resource, a prioritized resource, and a dedicated resource of a radio resource for a radio resource management (RRM) policy member list (rRMPolicyMemberList);

receive, from the RT RIC, an E2 control message generated based on the resource policy information; and

perform a resource allocation based on the E2 control message,

wherein the resource policy information includes an RRM policy maximum ratio (rRMPolicyMaxRatio), an RRM policy minimum ratio (rRMPolicyMinRatio) and an RRM policy dedicated ratio (rRMPolicyDedicatedRatio),

wherein each of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio are indicated with an integer between 0 and 100,

wherein the shared resource is determined based on a difference between the rRMPolicyMaxRatio and the rRMPolicyMinRatio,

wherein the prioritized resource is determined based on a difference between the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio, and

wherein the dedicated resource is determined based on the rRMPolicy DedicatedRatio.

10 . The device of claim 9 ,

wherein the rRMPolicyMemberList are subject to the resource policy information;

wherein the rRMPolicyMaxRatio indicates a maximum percentage of radio resources that can be used by the rRMPolicyMemberList;

wherein the rRMPolicyMinRatio indicates a minimum percentage of the radio resources that can be used by the rRMPolicyMemberList; and

wherein the rRMPolicyDedicatedRatio indicates a percentage of radio resources that can be dedicatedly used by the rRMPolicyMemberList.

11 . The device of claim 9 , wherein the E2 control message includes at least one of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio.

12 . The device of claim 9 , wherein the at least one processor is further configured to:

transmit, to the RT RIC, information related to O1 interface configuration.

13 . A device of a near-real time (near-RT) radio access network (RAN) intelligent controller (RIC), the device comprising:

at least one transceiver comprising circuitry; and

at least one processor comprising circuitry,

wherein the at least one processor is individually and/or collectively configured to:

receive, from a distributed unit (DU), an E2 report message including resource policy information related to a shared resource, a prioritized resource, and a dedicated resource of a radio resource for a radio resource management (RRM) policy member list (rRMPolicyMemberList); and

transmit, to the DU, an E2 control message generated based on the resource policy information,

wherein the resource policy information includes an RRM policy maximum ratio (rRMPolicyMaxRatio), an RRM policy minimum ratio (rRMPolicyMinRatio) and an RRM policy dedicated ratio (rRMPolicyDedicatedRatio),

wherein each of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio are indicated with an integer between 0 and 100,

wherein the shared resource is determined based on a difference between the rRMPolicyMaxRatio and the rRMPolicy MinRatio,

wherein the prioritized resource is determined based on a difference between the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio, and

wherein the dedicated resource is determined based on the rRMPolicyDedicatedRatio.

14 . The device of claim 13 ,

wherein the rRMPolicyMemberList are subject to the resource policy information;

wherein the rRMPolicyMaxRatio indicates a maximum percentage of radio resources that can be used by the rRMPolicyMemberList;

wherein the rRMPolicyMinRatio indicates a minimum percentage of the radio resources that can be used by the rRMPolicyMemberList; and

wherein the rRMPolicyDedicatedRatio indicates a percentage of radio resources that can be dedicatedly used by the rRMPolicyMemberList.

15 . The device of claim 13 , wherein the E2 control message includes at least one of the rRMPolicyMaxRatio, the rRMPolicyMinRatio and the rRMPolicyDedicatedRatio.

16 . The device of claim 13 , wherein the at least one processor is further configured to:

receive, from the DU, information related to O1 interface configuration.