Adaptive Configured Grant Parameter Selection for Wireless Power Saving
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Solution Overview
Problem
Wireless communication systems, particularly in XR applications, face challenges in adapting to changing channel conditions, leading to reduced reliability and increased power consumption due to the use of a single set of parameters for downlink and uplink transmissions.
Innovation Solution
Configuring communication devices with a grant configuration that includes multiple sets of parameters, allowing the UE to select the optimal set based on current channel conditions for improved reliability and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single set of parameters is used for downlink and uplink transmissions, then device complexity is reduced, but reliability deteriorates under changing channel conditions
Solution Approach 1:
The patent implements dynamic parameter selection by configuring multiple parameter sets (first, second, and third sets) that can be adaptively chosen based on channel conditions. The UE determines channel quality and selects the appropriate parameter set, transforming the static single-parameter approach into a dynamic multi-parameter system that adapts to changing environmental conditions, thereby resolving the contradiction between simplicity and reliability.
Solution Approach 2:
The patent applies parameter changes by defining multiple distinct parameter sets with different configurations (e.g., different modulation schemes, coding rates, or transmission power levels). Instead of using a fixed parameter set, the system changes parameters based on channel conditions, allowing the transmission to maintain reliability across varying channel qualities while managing complexity through structured parameter configurations.
2Device complexity
If a single set of parameters is used for transmissions, then device complexity is reduced, but power consumption increases due to retransmissions
Solution Approach 1:
The patent implements dynamic parameter selection by configuring multiple parameter sets (first, second, and third sets) that can be adaptively chosen based on channel conditions. The UE determines channel quality and selects the appropriate parameter set, transforming the static single-parameter approach into a dynamic multi-parameter system that adapts to changing environmental conditions, thereby resolving the contradiction between simplicity and reliability.
Solution Approach 2:
The patent applies parameter changes by defining multiple distinct parameter sets with different configurations (e.g., different modulation schemes, coding rates, or transmission power levels). Instead of using a fixed parameter set, the system changes parameters based on channel conditions, allowing the transmission to maintain reliability across varying channel qualities while managing complexity through structured parameter configurations.
3Adaptability or versatility
If multiple sets of parameters are configured, then adaptability to channel conditions improves, but device complexity increases
Solution Approach 1:
The patent segments the parameter space by dividing the configuration into multiple distinct parameter sets (first, second, and third sets), each optimized for specific channel conditions. This segmentation allows the system to manage complexity by organizing parameters into discrete, manageable groups rather than handling a continuous, unstructured parameter space, enabling adaptability while controlling complexity through structured segmentation.
Solution Approach 2:
The patent implements dynamic parameter selection by configuring multiple parameter sets (first, second, and third sets) that can be adaptively chosen based on channel conditions. The UE determines channel quality and selects the appropriate parameter set, transforming the static single-parameter approach into a dynamic multi-parameter system that adapts to changing environmental conditions, thereby resolving the contradiction between simplicity and reliability.
4Reliability
If adaptive parameter selection is implemented, then transmission reliability improves, but processing requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple parameter sets (first, second, and third sets) before transmission occurs. The UE is provided with all necessary parameter configurations in advance, so when channel conditions change, the UE can quickly select from pre-prepared options rather than calculating new parameters in real-time. This preliminary configuration reduces processing complexity during actual transmission while maintaining reliability through adaptive selection.
Solution Approach 2:
The patent implements dynamic parameter selection by configuring multiple parameter sets (first, second, and third sets) that can be adaptively chosen based on channel conditions. The UE determines channel quality and selects the appropriate parameter set, transforming the static single-parameter approach into a dynamic multi-parameter system that adapts to changing environmental conditions, thereby resolving the contradiction between simplicity and reliability.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be receive a grant configuration including multiple set of parameters, and the UE may select a set of parameters from the configured grant based on a channel condition. In some examples, the UE may be configured to signal to a network (e.g., a base station) the selected set of parameters and their corresponding parameter values. For example, the UE may be configured to signal the selected set of parameters over semi-static signaling (e.g., radio resource control (RRC) messaging) or dynamic signaling (e.g., medium access control-control element (MAC-CE) messaging, uplink control information (UCI) messaging, or the like). By configuring the UE with multiple set of parameters, the UE may adapt to changing channel conditions, which may provide higher reliability and lower latency for wireless communications, as well as reduce power consumption for the UE.