Wireless Device Bandwidth Part Configuration and Duty Cycle Indication
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing bandwidth parts and communication duty cycles, particularly in balancing power consumption with throughput and quality of service, especially under thermal and peak power conditions, which can lead to battery drain and system instability.
Innovation Solution
Implementing mechanisms for wireless devices to request and indicate preferred bandwidth parts and communication duty cycles, allowing the network to adjust scheduling and resource allocation, thereby optimizing power usage and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless devices operate with wideband cells and multiple bandwidth parts to improve throughput and quality of service, then communication performance is improved, but power consumption increases leading to battery drain
Solution Approach 1:
The system dynamically switches between different bandwidth parts based on real-time conditions. The network can activate or deactivate specific bandwidth parts for a wireless device, allowing the device to use wider bandwidth when high throughput is needed and narrower bandwidth when power saving is prioritized. This dynamic adaptation resolves the contradiction between maintaining high productivity and reducing energy consumption.
Solution Approach 2:
The patent changes the operational parameters of the wireless device by configuring multiple bandwidth parts with different bandwidth characteristics. The network can select and activate appropriate bandwidth parts based on traffic requirements, channel conditions, and power constraints, thereby adjusting the effective bandwidth parameter to balance throughput and power consumption.
2Reliability
If wireless devices increase functionality to improve communication capabilities, then transmit and receive abilities are improved, but battery life is significantly strained
Solution Approach 1:
The wideband cell bandwidth is segmented into multiple bandwidth parts, each with different resource allocations. The wireless device can be configured with multiple bandwidth parts but only activate one at a time per component carrier. This segmentation allows the device to maintain the capability to access wideband resources when needed while operating on a narrower, power-efficient bandwidth during normal operation, thus preserving battery life while maintaining communication reliability.
3Use of energy by moving object
If wireless devices implement duty cycling to reduce power consumption under thermal and peak power conditions, then power usage is optimized, but network scheduling efficiency decreases
Solution Approach 1:
The wireless device provides feedback to the network about its duty cycling requirements and preferred bandwidth parts. The network uses this feedback to adjust its scheduling decisions, aligning resource allocations with the device's power management needs. This feedback mechanism allows the network to maintain scheduling efficiency by anticipating duty cycling behavior rather than reacting to it, resolving the contradiction between power optimization and scheduling efficiency.
Data Source
AI summary
This disclosure relates to techniques for a wireless device to indicate a preferred bandwidth part and duty cycle in a cellular communication system. A wireless device and a cellular base station may establish a radio resource control connection. The wireless device may transmit an indication of a preferred bandwidth part, or a preferred communication duty cycle, or both, to the cellular base station. The cellular base station may select a bandwidth part, or communication duty cycle, or both, based at least in part on the indication provided by the wireless device, and may transmit an indication of the selected bandwidth part, communication duty cycle, or both, to the wireless device. The cellular base station and the wireless device may perform cellular communication using the selected bandwidth part, communication duty cycle, or both.