Power Saving Profiles for 5G User Equipment
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Solution Overview
Problem
Managing power consumption in 5G NR standalone and non-standalone technology is more challenging than in 4G LTE due to increased power consumption from superfast speeds and stringent requirements for ultra-reliable low latency communication, especially when both LTE and NR modems need to be kept on, leading to inefficiencies in power saving features like PSM and eDRX.
Innovation Solution
A base station provides power saving profiles to user equipment (UE) based on network services and operation modes, defining sets of features and parameter settings that can be enabled or combined to optimize power usage, including options for voice-only, URLLC, eMBB, and network slices, allowing for efficient management of power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If superfast speeds and ultra-reliable low latency communication are implemented in 5G NR, then communication performance and reliability are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic power management by enabling the UE to transition between different operation modes (connected mode and power saving mode) based on network conditions and service requirements. This allows the system to adaptively adjust power consumption levels while maintaining communication reliability when needed.
Solution Approach 2:
The patent changes operational parameters by introducing configurable power saving profiles with different parameter sets that can be activated based on service type. This allows optimization of power consumption parameters (such as DRX cycles, measurement frequencies) without compromising the reliability parameters for critical services like URLLC.
2Adaptability or versatility
If both LTE and NR modems are kept on for non-standalone operation, then service coverage and compatibility are improved, but power consumption increases
Solution Approach 1:
The patent extracts and separates the power management control for each modem independently. The network can configure the UE to use only the necessary modem (LTE or NR) based on the specific service being accessed, allowing the unnecessary modem to be powered down or placed in a lower power state, thus reducing overall power consumption while maintaining service coverage.
3Use of energy by moving object
If traditional power saving features like PSM and eDRX are used in 5G NR, then power consumption is reduced, but service responsiveness and network connectivity are worsened
Solution Approach 1:
The patent segments power saving configurations into service-specific profiles. Different power saving parameters can be applied to different services (e.g., voice, data, URLLC) simultaneously. This allows critical services to maintain higher responsiveness while non-critical services can use more aggressive power saving measures, resolving the contradiction between power consumption and service responsiveness.
Data Source
AI summary
A base station may define power saving profiles, and may define, for the power saving profiles, sets of features and parameter settings for each feature of the sets of features. The base station may store the power saving profiles, the sets of features, and the parameter settings in a data structure, and may receive, from a user equipment, data identifying a service utilized by the user equipment or an operation mode of the user equipment. The base station may retrieve, from the data structure, a single power saving profile based on the data identifying the service utilized by the user equipment or the operation mode of the user equipment, and may enable, for the user equipment, a corresponding set of features and corresponding parameter settings of the single power saving profile based on the single power saving profile being retrieved from the data structure.