Method and device for allocating IP address to DU in integrated access and backhaul system
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
1. A method performed by a mobile-termination (MT), the method comprising:
transmitting, to a donor central unit (CU), a first message related to an allocation of an IP address, the first message including information associated with IP version 4 or IP version 6;
receiving, from the donor CU, a second message including a first IP address for secondary cell group (SCG) in a multi-radio dual connectivity (MR-DC); and
adding the first IP address for the SCG.
2. The method of claim 1 , wherein the second message is a radio resource control (RRC) message.
3. The method of claim 1 , further comprising:
changing the current IAB-MT configuration associated with the first IP address in case that the first IP address for the SCG is part of the current IAB-MT configuration.
4. The method of claim 1 , wherein the first message is a ULInformationTransferMRDC message in case that the first message is transmitted via a node associated with MR-DC.
5. A method performed by a donor central unit (CU), the method comprising:
receiving, from a mobile-termination (MT), a first message related to an allocation of an IP address, the first message including information indicating one of associated with IP version 4 or IP version 6; and
transmitting, to the MT, a second message including a first IP address for secondary cell group (SCG) in a multi-radio dual connectivity (MR-DC),
wherein the first IP address for the SCG is added.
6. The method of claim 5 , wherein the second message is a radio resource control (RRC) message.
7. The method of claim 5 , wherein the current IAB-MT configuration associated with the first IP address is changed in case that the first IP address for the SCG is part of the current IAB-MT configuration.
8. The method of claim 5 , wherein the first message is a ULInformationTransferMRDC message in case that the first message is received via a node associated with MR-DC.
9. A mobile-termination (MT), the MT comprising:
a transceiver capable of transmitting and receiving at least one signal; and
a controller coupled to the transceiver,
wherein the controller is configured to:
transmit, to a donor central unit (CU), a first message related to an allocation of an IP address, the first message including information associated with IP version 4 or IP version 6,
receive, from the donor CU, a second message including a first IP address for secondary cell group (SCG) in a multi-radio dual connectivity (MR-DC), and
add the first IP address for the SCG.
10. The MT of claim 9 , wherein the second message is a radio resource control (RRC) message.
11. The MT of claim 9 , wherein the controller is further configured to:
change the current IAB-MT configuration associated with the first IP address in case that the first IP address for the SCG is part of the current IAB-MT configuration.
12. The MT of claim 9 , wherein the first message is a ULInformationTransferMRDC message in case that the first message is transmitted via a node associated with MR-DC.
13. A donor central unit (CU), the donor CU comprising:
a transceiver capable of transmitting and receiving at least one signal; and
a controller coupled to the transceiver,
wherein the controller is configured to:
receive, from a mobile-termination (MT), a first message related to an allocation of an IP address, the first message including information associated with IP version 4 or IP version 6, and
transmit, to the MT, a second message including a first IP address for secondary cell group (SCG) in a multi-radio dual connectivity (MR-DC),
wherein the first IP address for the SCG is added.
14. The donor CU of claim 13 , wherein the second message is a radio resource control (RRC).
15. The donor CU of claim 13 ,
wherein current IAB-MT configuration associated with the first IP address in accordance with the information is changed in case that the first IP address for the SCG is part of the current IAB-MT configuration, and
wherein the first message is a ULInformationTransferMRDC message in case that the first message is received via a node associated with MR-DC.