Multicast and Broadcast DRX Power Saving Through Selective PDCCH Monitoring
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing bandwidth and power consumption, particularly in scenarios with varying traffic loads and device capabilities.
Innovation Solution
The implementation of bandwidth parts (BWPs) and dynamic configuration of carrier aggregation, along with advanced beam management techniques, allows for adaptive bandwidth allocation and efficient power use in wireless communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth parts (BWPs) and dynamic carrier aggregation are implemented, then data rates and network flexibility are improved, but device complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic BWP configuration where the active bandwidth part can be changed based on traffic conditions and device capabilities. The system dynamically adjusts carrier aggregation configurations and beam settings rather than using fixed parameters, allowing the device to adapt to varying network conditions and optimize performance while managing complexity through automated adjustments.
Solution Approach 2:
The system changes multiple parameters including bandwidth part selection, carrier aggregation configuration, and beam directions based on traffic load and device capability. By dynamically modifying these parameters, the system achieves higher data rates for capable devices while maintaining simplicity for basic devices, thus resolving the contradiction between productivity and device complexity.
2Productivity
If advanced beam management and dynamic configuration are used, then network flexibility and data rates improve, but power consumption increases
Solution Approach 1:
The system dynamically adjusts beam directions and bandwidth parts based on real-time traffic conditions and device capabilities. For devices with high power budgets and advanced capabilities, the system uses dynamic beam management and wide bandwidth parts to maximize data rate. For power-constrained devices, the system automatically selects more power-efficient configurations, thus resolving the contradiction between productivity and power consumption.
Solution Approach 2:
The patent changes operational parameters such as active bandwidth part, carrier aggregation level, and beam configuration based on device power constraints and traffic requirements. This adaptive parameter adjustment allows the system to deliver high data rates when power is available while reducing power consumption when devices are power-constrained, effectively resolving the contradiction between productivity and energy usage.
3Productivity
If bandwidth allocation is optimized for high data rates, then productivity improves, but adaptability to diverse device capabilities deteriorates
Solution Approach 1:
The system applies different bandwidth part configurations and carrier aggregation settings tailored to specific device capabilities. Instead of a one-size-fits-all approach, the network selects appropriate parameters based on individual device abilities, ensuring high data rates for capable devices while maintaining compatibility and simplicity for basic devices, thus resolving the contradiction between productivity and adaptability.
Solution Approach 2:
The system dynamically adapts bandwidth allocation and configuration based on detected device capabilities and current traffic conditions. This dynamic adaptation allows the system to optimize for high data rates when devices support advanced features while automatically falling back to simpler, more compatible configurations when needed, thus maintaining both productivity and adaptability across diverse device populations.
Data Source
AI summary
A wireless device receives parameters, including a first discontinuous reception (DRX) configuration associated with unicast transmissions in a cell and a second DRX configuration associated with multicast and broadcast services (MBS) in the cell. The wireless device may also receive a power saving (PS) indication indicating not to start a DRX on duration timer. The PS indication may be applied for the first DRX configuration; and it may not be applied for the second DRX configuration. The wireless device may further skip monitoring, in a first DRX on duration of the first DRX configuration, first physical downlink control channels (PDCCHs) for the unicast transmissions based on receiving the PS indication. The wireless device may also monitor, in a second DRX on duration of the second DRX configuration and while skipping monitoring the first PDCCHs in the first DRX on duration, second PDCCHs for the MBS.