Asymmetric Bandwidth Allocation for Wireless Devices
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently managing asymmetric uplink and downlink bandwidth, particularly for devices with limited communication capabilities, such as smart watches and other wearable devices, which often have limited battery life and power constraints, leading to inefficient power consumption and resource allocation.
Innovation Solution
Implementing dynamic and asymmetric bandwidth allocation techniques that allow wireless devices and cellular base stations to adjust uplink and downlink bandwidths based on current communication needs, enabling devices to operate in narrow or wide band modes as necessary, and optimizing resource allocation to balance power efficiency and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If symmetric bandwidth allocation is used in wireless communication systems, then system simplicity and ease of management are improved, but power efficiency and resource utilization deteriorate for devices with varying communication needs
Solution Approach 1:
The patent implements dynamic bandwidth allocation where the base station and wireless device can adjust uplink and downlink bandwidths in real-time based on communication needs. The base station determines bandwidth allocations and notifies the wireless device, which then configures its radio components accordingly. This dynamic adjustment allows the system to optimize power efficiency by reducing bandwidth when communication activity is low while maintaining simplicity through automated base station control.
2Ease of operation
If fixed bandwidth allocation is used, then system stability and ease of operation are improved, but adaptability to varying communication characteristics deteriorates
Solution Approach 1:
The system transitions from fixed to dynamic bandwidth allocation where the base station determines appropriate bandwidths based on observed communication patterns and notifies the wireless device. This allows the system to maintain operational stability through automated management while achieving adaptability to varying communication characteristics such as data volume and traffic patterns.
Solution Approach 2:
The wireless device autonomously configures its radio components based on bandwidth allocation notifications from the base station. The device monitors its own communication needs and automatically adjusts its bandwidth configuration without requiring manual intervention, achieving both ease of operation and adaptability.
3Productivity
If wide bandwidth is allocated to all devices, then throughput is improved, but power consumption and resource efficiency deteriorate for devices with limited capabilities
Solution Approach 1:
The patent applies different bandwidth allocations to different devices based on their specific communication needs and capabilities. The base station evaluates each device's requirements and assigns appropriate bandwidths, allowing high-throughput devices to use wide bandwidth while power-constrained devices use narrower bandwidth, optimizing both productivity and energy efficiency at the local device level.
Solution Approach 2:
The system dynamically changes the bandwidth parameter for each wireless device based on communication activity and device capabilities. The base station adjusts bandwidth allocations and notifies devices, which reconfigure their radio components accordingly. This parameter adjustment allows the system to optimize throughput for capable devices while reducing power consumption for devices with limited capabilities.
4Productivity
If asymmetric bandwidth support is implemented, then resource allocation efficiency is improved, but device complexity and configuration difficulty increase
Solution Approach 1:
The wireless device automatically configures its radio components based on bandwidth allocation notifications from the base station. The device monitors asymmetric bandwidth allocations for uplink and downlink and adjusts its configuration accordingly without requiring manual setup or complex user intervention, maintaining ease of operation despite asymmetric allocation.
Solution Approach 2:
The base station acts as an intermediary that manages asymmetric bandwidth allocations and communicates them to wireless devices. This centralized control simplifies the configuration process for devices, as they only need to receive and implement notifications from the base station rather than independently managing complex asymmetric bandwidth settings.
Data Source
AI summary
This disclosure relates to techniques for supporting asymmetric uplink and downlink bandwidth allocations for a wireless device, and for dynamically modifying the bandwidth allocations for a wireless device, in a wireless communication system. A cellular communication link may be established between a base station and a wireless device. The base station may determine an uplink bandwidth allocation and a downlink bandwidth allocation for the wireless device. The uplink bandwidth allocation and the downlink bandwidth allocation may be selected based on different criteria and may include different amounts of bandwidth. Indications of the uplink bandwidth allocation and the downlink bandwidth allocation may be provided to the wireless device. The base station and wireless device may communicate according to the uplink bandwidth allocation and the downlink bandwidth allocation.