CN-122029892-A - Communication method, user equipment and network node

Abstract

A communication method for use in a mobile communication system includes performing, at a user equipment, wireless communication with a network node using one or more network slices, and transmitting, at the user equipment, slice-related information for performing mobility control of the user equipment to the network node. The slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices.

Inventors

• FUJISHIRO MASATO

Assignees

• 京瓷株式会社

Dates

Publication Date

20260512

Application Date

20240808

Priority Date

20230818

Claims (13)

1. 1. A communication method for use in a mobile communication system, the communication method comprising: Performing wireless communications with a network node using one or more network slices at a user equipment, and At the user equipment, transmitting slice related information for performing mobility control of the user equipment to the network node, Wherein the slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices.
2. 2. The communication method according to claim 1, further comprising: at the user equipment, signaling is received from the network node requesting or configuring to send the slice-related information, Wherein transmitting the slice-related information comprises transmitting the slice-related information to the network node in response to the signaling.
3. 3. The communication method according to claim 1, further comprising: At the user equipment, deriving at least one item selected from the group consisting of the first information, the second information and the third information by statistical processing based on a tracking record of the user equipment using each of the network slices.
4. 4. The communication method according to claim 1, further comprising: at the user device, at least one selected from the group consisting of the first information, the second information, and the third information is derived by an inference process based on a trace record of the user device using each of the network slices by using an artificial intelligence or machine learning AI/ML model.
5. 5. The communication method according to any one of claims 1 to 4, wherein at least one selected from the group consisting of the first information, the second information and the third information is information in a single network slice selection assistance information S-NSSAI unit or information in a network slice AS group NSAG unit.
6. 6. The communication method according to claim 1, further comprising: receiving, at the network node, the slice-related information from the user equipment; acquiring slice load information at the network node, the slice load information being obtained from another network node and indicating a load status of each of the network slices of the other network node, and At the network node, mobility control from the network node to the other network node is performed based on the slice-related information and the slice load information.
7. 7. The communication method of claim 6, wherein the slice load information comprises information about the number of user equipments in a radio resource control, RRC, connected state for each network slice.
8. 8. The communication method of claim 6, wherein the slice load information comprises information about a number of user equipments in a radio resource control, RRC, connected state and in an active state for each network slice.
9. 9. The communication method according to claim 6, wherein the slice load information includes information on a communication load of each user equipment for each network slice.
10. 10. The communication method of claim 6, wherein performing mobility control comprises determining a handover target for the user equipment based on the slice-related information and the slice load information.
11. 11. A user equipment for use in a mobile communication system, the user equipment comprising: a controller configured to perform wireless communications with the network nodes using one or more network slices, and A transmitter configured to transmit slice related information for performing mobility control of the user equipment to the network node, Wherein the slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices.
12. 12. A network node for use in a mobile communication system, the network node comprising: a controller configured to perform wireless communication with the user device using one or more network slices, and A receiver configured to receive slice related information for performing mobility control of the user equipment from the user equipment, Wherein the slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices.
13. 13. A network node for use in a mobile communication system, the network node comprising: A communicator configured to send slice load information indicating a load status of each of the network slices to another network node, Wherein the slice load information comprises at least one item selected from the group consisting of information on the number of user equipments in a radio resource control, RRC, connected state, information on the number of user equipments in a radio resource control, RRC, connected state and in an active state, and information on a communication load of each user equipment for each of the network slices.

Description

Communication method, user equipment and network node Technical Field The present disclosure relates to a communication method, a user equipment and a network node for use in a mobile communication system. Background In the third generation partnership project (3 GPP), which is a standardization project for mobile communication systems, a technology of artificial intelligence or machine learning, also referred to as artificial intelligence/machine learning (AI/ML), has been studied to be applied to an air interface in a mobile communication system. List of references Non-patent literature Non-patent document 1:3GPP technical report ：TR 38.843 V0.1.0（2023-05）,"Study on Artificial Intelligence (AI)/Machine Learning (ML) for NR air interface (Release 18)" Disclosure of Invention In a first aspect, the communication method is a method used in a mobile communication system. The communication method comprises performing, at a user equipment, wireless communication with a network node using one or more network slices, and transmitting, at the user equipment, slice related information for performing mobility control of the user equipment to the network node. The slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices. In a second aspect, the user equipment is a device for use in a mobile communication system. The user equipment includes a controller configured to perform wireless communication with a network node using one or more network slices, and a transmitter configured to transmit slice related information for performing mobility control of the user equipment to the network node. The slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices. In a third aspect, the network node is a node for use in a mobile communication system. The network node comprises a controller configured to perform wireless communication with a user equipment using one or more network slices, and a receiver configured to receive slice related information from the user equipment for performing mobility control of the user equipment. The slice-related information includes at least one selected from the group consisting of first information indicating a probability of use of each of the network slices, second information indicating a priority of each of the network slices, and third information indicating a traffic pattern of each of the network slices. In a fourth aspect, the network node is a node for use in a mobile communication system. The network node comprises a communicator configured to send slice load information indicating a load status of each of the network slices to another network node. The slice load information includes at least one item selected from the group consisting of information about the number of user equipments in a Radio Resource Control (RRC) connected state, information about the number of user equipments in a Radio Resource Control (RRC) connected state and in an active state, and information about a communication load of each of the network slices for each of the user equipments. Drawings Fig. 1 is a diagram showing a configuration of a mobile communication system according to an embodiment. Fig. 2 is a diagram showing a configuration of a User Equipment (UE) according to an embodiment. Fig. 3 is a diagram showing a configuration of a gNB (network node) according to an embodiment. Fig. 4 is a diagram showing a configuration of a protocol stack of a radio interface of a user plane that processes data. Fig. 5 is a diagram showing a configuration of a protocol stack of a radio interface of a control plane that processes signaling (control signals). Fig. 6 is a diagram showing a functional block configuration of AI/ML technology in a mobile communication system according to an embodiment. Fig. 7 is a diagram for describing an overview of network slicing techniques. Fig. 8 is a diagram for describing an example of an operation scenario of the mobile communication system according to the embodiment. Fig. 9 is a diagram for describing a first operation mode of the mobile communication system according to the embodiment. Fig. 10 is a diagram illustrating an example of a first operation mode of the mobile communication system according to the embodiment. Fig. 11 is a diagram for describing a second operation mode of the mobile communication system according to the embodiment. Fig. 12 is a diagram illustrating an example of a second operation mode of the mobile communication system according to the e