Radio Reserve Energy Allocation Using Spatial RF Exposure Maps
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication devices face challenges in efficiently allocating reserve energy among radios to ensure RF exposure compliance, leading to reduced throughput, increased latency, and decreased range due to inaccurate assessment of RF exposure distribution across antennas.
Innovation Solution
The method involves determining RF exposure contribution information for each antenna, using spatial contribution matrices to allocate reserve energy based on actual RF exposure patterns, ensuring compliance with RF exposure limits while maintaining optimal performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If reserve energy is allocated uniformly among all radios without considering spatial RF exposure distribution, then RF exposure compliance is ensured, but wireless communication performance deteriorates with reduced throughput, increased latency, and decreased range
Solution Approach 1:
The patent applies local quality by allocating reserve energy differently to different radios based on their specific spatial RF exposure characteristics. Each radio's reserve energy allocation is determined by its individual contribution to RF exposure in different spatial locations, rather than applying a uniform allocation across all radios. This enables each radio to operate with optimally tailored reserve energy levels that match its actual exposure profile.
Solution Approach 2:
The patent changes the parameter of reserve energy allocation from a uniform fixed value to a dynamic value that varies per radio based on spatial RF exposure measurements. The system measures RF exposure contributions from each antenna across multiple spatial locations and uses these measurements to determine customized reserve energy allocations, transforming the allocation parameter from static to adaptive.
2Object-affected harmful factors
If transmit power is reduced to ensure RF exposure compliance, then RF exposure limits are met, but signal quality and communication range deteriorate
Solution Approach 1:
The patent applies local quality by determining transmit power levels and reserve energy allocations specific to each radio's spatial RF exposure characteristics. Instead of applying a blanket power reduction across all radios, the system measures the actual RF exposure contribution of each antenna in different spatial locations and tailors the power and reserve allocation to match each radio's local exposure profile, thereby maintaining signal quality where exposure permits while ensuring compliance where exposure is high.
3Reliability
If extensive certification processes are performed to ensure RF exposure compliance, then regulatory standards are met, but device complexity and time to market increase
Solution Approach 1:
The patent applies self-service by enabling the wireless communication device to autonomously assess its own RF exposure characteristics and determine appropriate reserve energy allocations without requiring external certification. The device measures RF exposure contributions from its own antennas, processes this spatial information, and automatically configures reserve energy allocations to ensure compliance. This self-assessment capability reduces dependence on extensive external certification processes.
Solution Approach 2:
The patent implements feedback by using measured RF exposure data from spatial measurements to dynamically adjust reserve energy allocations. The system continuously monitors RF exposure contributions and uses this feedback information to optimize power distribution across radios, ensuring compliance is maintained adaptively rather than relying on static pre-certification configurations.
Data Source
AI summary
Techniques and apparatus for reserve energy allocation among radios of a wireless device based on spatial information of radio frequency (RF) exposure contributions among antennas of the wireless device are described. An example technique includes determining RF exposure contribution information associated with a plurality of antennas for radio(s) of the wireless device. The RF exposure contribution information includes, for each antenna, a respective indication of RF exposure contribution from the antenna on RF exposure contributor(s). A reserve level for each of the radio(s) is determined, based at least in part on the RF exposure contribution information. First signal(s) are transmitted using at least one of the radio(s) at a first transmit power determined based at least in part on an RF exposure limit associated with each of the radio(s) and the reserve level for each of the radio(s).