Dynamic Tone Reservation for Uplink Spectral Efficiency
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing uplink communications due to interference and resource allocation inefficiencies, particularly in dynamic environments where bandwidth capacities vary.
Innovation Solution
Implementing dynamic location tone reservation techniques, where UEs and network nodes exchange signaling to identify bandwidth locations that meet certain capacity thresholds, allowing for the application of tone reservation signals to optimize uplink communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic location tone reservation is implemented, then spectral efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic location tone reservation where the network node determines and signals the specific locations of reserved tones based on current channel conditions and traffic requirements. This dynamic approach allows the system to adapt tone reservation configurations in real-time, improving spectral efficiency by optimizing resource allocation according to actual network state rather than using fixed static configurations.
Solution Approach 2:
The system changes multiple parameters dynamically including the locations of reserved tones, the number of reserved tones, and the association between reserved tones and physical resources. The network node adjusts these parameters based on channel quality indicators, traffic load, and other operational conditions, enabling flexible optimization of spectral efficiency while managing device complexity through centralized control.
2Reliability
If tone reservation signals are transmitted continuously, then communication quality is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic tone reservation where the network node determines whether to transmit tone reservation signals in each uplink communication opportunity based on current conditions. Instead of continuous transmission, the system periodically assesses the need for tone reservation and activates it only when channel conditions warrant such protection, thereby maintaining communication quality while reducing unnecessary power consumption during periods when tone reservation is not beneficial.
Solution Approach 2:
The UE autonomously applies tone reservation at designated locations based on received signaling from the network node, without requiring continuous control signals. The UE uses its own processing capabilities to implement the tone reservation scheme locally, reducing the need for continuous network node involvement and thereby reducing overall system power consumption while maintaining communication reliability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, signaling that indicates locations of a bandwidth having capacities that satisfy a threshold. The UE may receive, from the network node and based at least in part on the signaling, an indication of tone reservation signals for application of dynamic location tone reservation for one or more uplink communications. Numerous other aspects are described.