Network Node Dynamic Assistance Information Signaling for UE Power Saving
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Solution Overview
Problem
The increasing demand for data traffic in wireless communication systems, particularly in 5G NR systems, leads to higher power consumption in user equipment (UE) due to handling large bandwidths and multiple connections, necessitating effective power-saving solutions.
Innovation Solution
A network-managed approach that dynamically configures and controls the transmission of assistance information by user equipment (UE) to implement power-saving techniques, including specifying configuration information for when and what information to transmit, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE is configured to support high throughput with large bandwidths and multiple connections, then system throughput is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic configuration of assistance information transmission by the network node based on current traffic conditions and UE power status. The network node dynamically adjusts whether the UE should transmit assistance information and what type of information to transmit, allowing the system to adapt between high throughput mode and power saving mode according to real-time conditions, thus resolving the contradiction between maintaining high productivity and reducing energy consumption.
2Use of energy by moving object
If the UE transmits assistance information frequently to enable power saving adaptations, then power saving effectiveness is improved, but signaling overhead increases
Solution Approach 1:
The network node controls the transmission parameters of assistance information by configuring specific conditions under which the UE should transmit information. By changing parameters such as transmission triggers, information types, and timing based on network conditions, the system achieves effective power saving adaptations while minimizing unnecessary signaling overhead.
3Use of energy by moving object
If the network node implements dynamic configuration adjustments for power saving, then UE power consumption is reduced, but network control complexity increases
Solution Approach 1:
The system implements a feedback mechanism where the UE transmits assistance information to the network node about its power status and traffic conditions. The network node uses this feedback to make informed decisions about configuration adjustments, enabling power saving without requiring complex open-loop control algorithms. The feedback loop simplifies the control complexity by relying on real-time information from the UE about its actual state.
Data Source
AI summary
A network node (12, 17) dynamically configures and controls assistance information transmissions by wireless communications devices (14) in a wireless communications system (10). The assistance information facilitates performance of power saving adaptations for the wireless communications device (14). The network node (12, 17) configures what information to indicate in assistance information messages, how the message is sent by wireless communications devices (14), and/or when the message should be signaled. The wireless communications devices (14) transmit assistance information messages in accordance with configuration parameters signaled by the network node (12, 17).