Method and apparatus to support virtual network in wireless communication network
The disclosure relates to a 5 th generation (5G) or 6 th generation (6G) communication system for supporting a higher data transmission rate. A method performed by a first network entity in a wireless communication network is provided. The method includes transmitting, to a second network entity, a first message including data to be used in a plurality of networks included in a virtual network (VN) group, a VN identifier (ID), group data, and receiving, from the second network entity in response to the first message, a second message including the data to be used in the plurality of networks, the VN ID, the group data, information indicating a processing result related to the first message.
1 . A method performed by an application function (AF) in a wireless communication network, the method comprising:
transmitting, to a network exposure function (NEF), a first message including data to be used in a plurality of networks included in a virtual network (VN) group, a VN identifier (ID), and group data; and
receiving, from the NEF in response to the first message, a second message including the data to be used in the plurality of networks, the VN ID, the group data, a first single network slice selection assistance information (S-NSSAI) used for a VN within a first network in which the NEF belongs, and information indicating a processing result related to the first message,
wherein the data to be used in the plurality of networks includes a VN network ID indicating an ID of a second network in which a user plane function (UPF) to which traffic to be used in the plurality of networks is to be transmitted is located, and a second S-NSSAI of used for the VN across the plurality of networks including the second network in which the UPF is located, and
wherein the first S-NSSAI is mapped to the second S-NSSAI.
2 . The method of claim 1 , wherein the data to be used in the plurality of networks further includes at least one of:
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.
3 . The method of claim 2 , wherein the application descriptor includes a plurality of information instances.
4 . The method of claim 2 , wherein the information related to the secondary authentication and authorization includes a data network (DN)-authentication/authorization/accounting (AAA) server address.
5 . A method performed by a network exposure function (NEF) in a wireless communication network, the method comprising:
receiving, from an application function (AF), a first message including data to be used in a plurality of networks included in a virtual network (VN) group, a VN identifier (ID), and group data;
transmitting, to a unified data management (UDM), a second message including information related to a network including the NEF, a network ID of the network, and data to be used in the plurality of networks;
receiving, from the UDM in response to the second message, a third message including the data to be used in the plurality of networks, the information related to the network, and a processing result related to the second message; and
transmitting, to the AF, a fourth message including the data to be used in the plurality of networks, the VN ID, the group data, a first single network slice selection assistance information (S-NSSAI) used in for a VN within a first network in which the NEF belongs, and information indicating a processing result related to the first message,
wherein the data to be used in the plurality of networks includes a VN network ID indicating an ID of a second network in which a user plane function (UPF) to which traffic to be used in the plurality of networks is to be transmitted is located, and a second S-NSSAI used for the VN across the plurality of networks including the second network in which the UPF is located, and
wherein the first S-NSSAI is mapped to the second S-NSSAI.
6 . The method of claim 5 , wherein the data to be used in the plurality of networks further includes at least one of:
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.
7 . The method of claim 6 , wherein the application descriptor includes a plurality of information instances.
8 . The method of claim 6 , wherein the information related to the secondary authentication and authorization includes a data network (DN)-authentication/authorization/accounting (AAA) server address.
9 . The method of claim 6 , wherein the information related to the network includes group data, and the group data includes at least one of:
a data network name (DNN);
the second S-NSSAI;
a protocol data unit (PDU) session type;
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.
10 . An application function (AF) in a wireless communication network, the AF comprising:
a transceiver; and
at least one processor,
wherein the at least one processor is configured to:
transmit, to a network exposure function (NEF) via the transceiver, a first message including data to be used in a plurality of networks included in a virtual network (VN) group, a VN identifier (ID), and group data, and
receive, from the NEF via the transceiver, in response to the first message, a second message including the data to be used in the plurality of networks, the VN ID, the group data, a first single network slice selection assistance information (S-NSSAI) used for a VN within a first network in which the NEF belongs, and information indicating a processing result related to the first message,
wherein the data to be used in the plurality of networks includes a VN network ID indicating an ID of a second network in which a user plane function (UPF) to which traffic to be used in the plurality of networks is to be transmitted is located, and a second S-NSSAI used for the VN across the plurality of networks including the second network in which the UPF is located, and
wherein the first S-NSSAI is mapped to the second S-NSSAI.
11 . The AF of claim 10 , wherein the data to be used in the plurality of networks further includes at least one of:
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.
12 . The AF of claim 11 , wherein the application descriptor includes a plurality of information instances.
13 . The AF of claim 11 , wherein the information related to the secondary authentication and authorization includes a data network (DN)-authentication/authorization/accounting (AAA) server address.
14 . A network exposure function (NEF) in a wireless communication network, the NEF comprising:
a transceiver; and
at least one processor,
wherein the at least one processor is configured to:
receive, from an application function (AF) via the transceiver, a first message including data to be used in a plurality of networks included in a virtual network (VN) group, a VN identifier (ID), and group data,
transmit, to a unified data management (UDM) via the transceiver, a second message including information related to a network including the second network entity NEF, a network ID of the network, and data to be used in the plurality of networks,
receive, from the UDM via the transceiver, in response to the second message, a third message including the data to be used in the plurality of networks, the information related to the network, and a processing result related to the second message, and
transmit, to the AF via the transceiver, a fourth message including the data to be used in the plurality of networks, the VN ID, the group data, a first single network slice selection assistance information (S-NSSAI) used for a VN within a first network in which the NEF belongs, and information indicating a processing result related to the first message,
wherein the data to be used in the plurality of networks includes a VN network ID indicating an ID of a second network in which a user plane function (UPF) to which traffic to be used in the plurality of networks is to be transmitted is located, and a second S-NSSAI used for the VN across the plurality of networks including the second network in which the UPF is located, and
wherein the first S-NSSAI is mapped to the second S-NSSAI.
15 . The NEF of claim 14 , wherein the data to be used in the plurality of networks further includes at least one of:
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.
16 . The NEF of claim 15 , wherein the application descriptor includes a plurality of information instances.
17 . The NEF of claim 15 , wherein the information related to the secondary authentication and authorization includes a data network (DN)-authentication/authorization/accounting (AAA) server address.
18 . The NEF of claim 15 , wherein the information related to the network includes group data, and the group data includes at least one of:
a data network name (DNN);
the second S-NSSAI;
a protocol data unit (PDU) session type;
an application descriptor indicating application characteristic information to be used to generate a user routing selection policy (URSP) to be transmitted to group members included in the VN group; or
information related to secondary authentication and authorization.