Asymmetric Bandwidth Operation for Wireless Uplink and Downlink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face interference and increased complexity due to growing demand for mobile broadband access, leading to performance degradation and higher power consumption in devices, especially in 'lightweight' or 'super lightweight' devices that require low latency, high reliability, and high throughput.
Innovation Solution
Implementing multi-bandwidth schemes that allow user equipment (UE) to operate with asymmetric bandwidths for uplink and downlink communications, using different bandwidth amounts and duty cycles based on specific frequency ranges and channels, enabling efficient power management and reduced overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication systems increase bandwidth to meet growing demand for mobile broadband access, then data throughput is improved, but power consumption and device complexity increase
Solution Approach 1:
The system dynamically adjusts bandwidth allocation between uplink and downlink based on actual communication needs. The UE can operate with asymmetric bandwidths where the active bandwidth is dynamically determined by traffic requirements, allowing the system to provide high throughput when needed while reducing power consumption during low-activity periods.
Solution Approach 2:
The patent changes the parameter of bandwidth allocation from symmetric to asymmetric configuration. By allowing different bandwidth amounts for uplink and downlink directions, and introducing duty cycle parameters to control activation periods, the system optimizes the balance between throughput and power consumption through parameter adjustment.
2Productivity
If wireless communication systems increase bandwidth to meet growing demand, then data throughput is improved, but device complexity increases
Solution Approach 1:
The system implements dynamic bandwidth switching capabilities where the UE can transition between different bandwidth configurations. This dynamic approach allows lightweight devices to only activate complex high-bandwidth processing when actually needed, rather than maintaining constant high complexity, thus reducing overall device complexity while preserving throughput capability.
Solution Approach 2:
The patent creates a universal communication framework that can operate across multiple bandwidth configurations within a single system. The asymmetric bandwidth mechanism allows the same device to function efficiently in both low-bandwidth power-saving mode and high-bandwidth high-throughput mode, providing multi-functionality without requiring separate specialized hardware for each mode.
3Device complexity
If symmetric bandwidths are used for uplink and downlink, then system simplicity is maintained, but power consumption increases due to unnecessary high data rates
Solution Approach 1:
The patent applies asymmetry by allowing different bandwidth amounts for uplink and downlink directions. Instead of forcing symmetric bandwidth allocation, the system permits the UE to use a smaller bandwidth for one direction and a larger bandwidth for the other direction, matching actual traffic patterns and reducing power consumption without significantly complicating the system.
Solution Approach 2:
The system implements periodic activation through duty cycle mechanisms, where bandwidth is activated only during necessary time periods rather than continuously. This periodic action allows the system to maintain simplicity by using standard bandwidth allocation protocols while dramatically reducing power consumption by limiting active transmission/reception to only when data traffic requires it.
Data Source
AI summary
An apparatus for wireless communications includes a processor and a memory that includes instructions. The one or more processors are configured to execute the instructions to control reception, from a base station, of a first downlink signal using a first bandwidth amount that is based on a first frequency range associated with a particular signal transmitted by the base station. The one or more processors are further configured to execute the instructions to initiate transmission, to the base station, of a first uplink signal using a second bandwidth amount. The second bandwidth amount is less than the first bandwidth amount, and the second bandwidth amount is based on a second frequency range associated with an uplink channel.