Power Saving Mode for Wireless Device Serving Cells
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Solution Overview
Problem
Current wireless communication systems face challenges in power saving when multiple serving cells are configured, particularly in scenarios where strict requirements for radio link monitoring and beam management procedures are applied, leading to increased power consumption without effective power saving mechanisms.
Innovation Solution
Implementing a power saving mode for wireless devices configured with multiple serving cells, where the device enters a relaxed measurement and reporting mode based on criteria such as speed, location, and radio conditions, allowing for reduced power consumption by extending measurement times and frequency of radio link procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If strict requirements for radio link monitoring and beam management procedures are applied in multi-cell scenarios, then measurement precision and reliability are improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the measurement mode adjustable between strict and relaxed configurations. The network node can dynamically switch between requiring precise measurements on all cells simultaneously or allowing relaxed measurements with extended timing, adapting to current power and performance requirements. This resolves the contradiction by making measurement precision controllable rather than fixed at maximum levels.
Solution Approach 2:
The patent changes key parameters including measurement timing (extending measurement periods in relaxed mode), measurement frequency (reducing frequency when relaxed), and cell grouping (organizing cells into power saving groups). These parameter changes allow the system to reduce power consumption while maintaining acceptable measurement precision through extended evaluation periods rather than continuous high-frequency measurements.
2Use of energy by moving object
If measurement timing is extended to reduce power consumption, then power saving is achieved, but productivity decreases
Solution Approach 1:
The patent implements periodic action by extending the measurement evaluation period from immediate results to longer time windows. Instead of requiring rapid continuous measurements, the system performs measurements over extended periodic intervals, allowing the wireless device to operate in lower power states between measurement epochs. This resolves the contradiction by trading measurement speed for power savings through time-based averaging.
Solution Approach 2:
The patent applies preliminary action by performing measurements over extended periods before making link quality decisions. Rather than reacting immediately to instantaneous measurements, the system accumulates measurement data over longer evaluation windows, allowing power savings during the accumulation phase while ensuring reliable decisions are made based on aggregated data.
3Use of energy by moving object
If power saving mode is implemented with relaxed measurement requirements, then power consumption is reduced, but reliability may be compromised
Solution Approach 1:
The patent merges measurements across multiple cells and time periods to compensate for relaxed individual measurement requirements. By combining information from multiple cells in power saving groups and aggregating measurements over extended evaluation periods, the system maintains overall link quality monitoring reliability even when individual measurements are performed less frequently or with relaxed criteria.
Solution Approach 2:
The patent implements feedback mechanisms where the network node receives measurement results from the wireless device and can adjust the measurement mode accordingly. If relaxed measurements indicate potential link issues, the system can transition back to strict measurement modes, providing feedback-based reliability assurance that adapts to actual link conditions while maintaining power savings during good conditions.
Data Source
AI summary
A method, system and apparatus are disclosed. According to one or more embodiments, a wireless device is provided. The wireless device includes processing circuitry configured to enter a first mode for a plurality of serving cells of a power savings group, PSG, based at least on the plurality of serving cells meeting at least a first criterion, determine a first serving cell fails to meet at least a second criterion, revert to a second mode for the first serving cell based on the determination that the first serving cell fails to meet the at least second criterion, and revert to the second mode for the remaining serving cells of the plurality of serving cells based on the determination that the first serving cell fails to meet the at least second criterion.