Network Slice Energy Control via Session Management Admission
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing and reducing energy consumption, particularly as the number of connected devices increases and the demand for higher performance and complex services grows.
Innovation Solution
The proposed solution involves a method and device for controlling energy use per network slice in a wireless communication system. This is achieved through a session management function (SMF) entity and a network function (NF) entity that communicate to manage energy resources. Specifically, the SMF receives requests for PDU session establishment and determines if the selected network slice is subject to energy control, then sends a request to the NF for admission control, which allocates energy credits if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of connected devices and service complexity increase to meet growing demand, then system capability and service performance improve, but energy consumption increases
Solution Approach 1:
The patent segments the network into multiple network slices, each independently managed for energy control. The session management function divides energy management into slice-specific admission control decisions, allowing targeted energy optimization without affecting the entire network, thus enabling service capability expansion while controlling overall energy consumption through granular slice management.
Solution Approach 2:
The patent implements local energy management by applying different energy control policies to different network slices based on their specific service requirements. Each slice receives customized admission control decisions, allowing critical services to maintain higher energy allocation while non-critical services receive reduced allocation, optimizing energy distribution locally across slices rather than uniformly across the entire network.
2Adaptability or versatility
If network slicing is implemented to provide dedicated networks for specific services, then service specialization and performance improve, but system complexity increases
Solution Approach 1:
The session management function serves multiple purposes: it handles standard PDU session establishment, modification, and release, while simultaneously performing energy control admission control for network slices. This multi-functionality allows the system to provide specialized slice management without adding separate dedicated control entities, reducing overall system complexity while maintaining service specialization capabilities.
Solution Approach 2:
The patent merges energy control admission control functionality into the existing session management function rather than implementing it as a separate entity. By combining these functions, the system achieves network slicing with service specialization while avoiding the complexity increase that would result from additional independent control planes or management entities.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. According to the disclosure, energy use per network slice can be efficiently controlled in a wireless communication system. A method performed by an SMF entity in a wireless communication system includes receiving, from an AMF entity, a first request message for a PDU session establishment including an S-NSSAI; determining whether the S-NSSAI is subject to energy control; and transmitting, to an NF entity, a second request message for an admission control including the S-NSSAI, in case that the S-NSSAI is subject to the energy control.