Receive Diversity Control in Wireless Devices
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multi-antenna receive diversity, as the benefits of increased link capacity and reduced power consumption are not always utilized optimally due to the high power costs associated with implementing and operating multiple receiver chains.
Innovation Solution
A control unit in a mobile device is implemented to selectively enable or disable multi-antenna receive diversity based on network capacity indicators, quality indicators, and operational state, using timers and application inputs to balance power savings with the need for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-antenna receive diversity is implemented, then link capacity and transmission quality are improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic control of receive diversity by enabling the mobile device to selectively activate or deactivate multiple receiver chains based on real-time channel conditions, network capacity indicators, and quality indicators. This dynamic adaptation allows the system to optimize the tradeoff between link capacity and power consumption by using diversity only when beneficial
Solution Approach 2:
The control unit monitors and responds to changes in operational parameters including network capacity indicators, quality indicators, and mobile device state information to dynamically adjust the configuration of receiver chains. This parameter-based control enables the system to adapt receive diversity activation to varying operational conditions
2Reliability
If multi-antenna receive diversity is continuously activated, then transmission quality and error rate are improved, but unnecessary power consumption occurs when benefits are not justified
Solution Approach 1:
The patent employs feedback mechanisms where the control unit continuously monitors network capacity indicators, quality indicators, and operational state information to determine whether activate receive diversity. This feedback-driven control ensures that diversity is activated only when channel conditions and system state justify the power consumption, avoiding unnecessary energy waste while maintaining transmission quality when needed
Data Source
AI summary
Receiver diversity in a wireless device is controlled in response to operating conditions, transmission requirements, and control settings. The control of diversity reduces power consumption by enabling receive diversity on given conditions. Operating conditions, transmission requirements, and control settings are used separately or used in conjunction to determine whether benefits of multi-antenna receive diversity, such as higher link capacity, higher data throughput, lower transmit power, and lower error rate, warrant the higher power cost of the diversity.