User Equipment Demodulation Performance Testing
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Solution Overview
Problem
User equipment with lower demodulation performance than standard requirements may require higher transmit power, leading to excess interference and adverse effects on other users and communication parties.
Innovation Solution
An apparatus and method for performing a performance test involving demodulation of input signals by user equipment, which includes providing two wireless input signals to separate receive chains, updating the power levels and modulation and coding schemes (MCS) of these signals in response to changing conditions, and assessing the user equipment's performance over a sequence of time intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If user equipment has lower demodulation performance than standard requirements, then the user equipment can operate with simpler hardware or lower manufacturing costs, but the network must increase transmit power which causes excess interference to other users
Solution Approach 1:
The patent performs demodulation performance testing during the manufacturing process to identify user equipment that does not meet standard requirements. By detecting performance issues before deployment, the system can prevent problematic devices from entering service, thereby avoiding the interference problem without requiring higher manufacturing costs.
Solution Approach 2:
The patent implements a feedback mechanism where test results from demodulation performance measurements are used to determine whether user equipment meets standard criteria. This feedback loop enables automatic identification and exclusion of non-compliant devices, resolving the contradiction between manufacturing simplicity and interference prevention.
2Device complexity
If user equipment has lower demodulation performance than standard requirements, then the user equipment can be manufactured more simply, but network transmit power must be increased which adversely affects a large number of other users
Solution Approach 1:
The patent performs demodulation performance testing during manufacturing to identify user equipment with insufficient performance before deployment. This preliminary detection prevents low-performance devices from entering service, eliminating the need to increase network transmit power and avoiding adverse effects on other communication parties.
Solution Approach 2:
The patent uses feedback from test measurements to automatically determine whether user equipment meets standard demodulation performance criteria. This feedback mechanism enables the system to reject non-compliant devices, resolving the contradiction between device simplicity and interference prevention.
3Ease of manufacture
If user equipment does not conform to standard demodulation performance criteria, then manufacturing costs may be reduced, but the network must compensate with higher power which creates excess interference
Solution Approach 1:
The patent performs demodulation performance testing during manufacturing to identify user equipment that fails to meet standard criteria. By detecting performance deficiencies before deployment, the system prevents the need for compensatory power increases, thereby avoiding excess energy loss while maintaining manufacturing efficiency.
Solution Approach 2:
The patent implements feedback based on test measurements to determine whether user equipment meets standard demodulation performance requirements. This feedback enables automatic rejection of non-compliant devices, resolving the contradiction between manufacturing cost and energy efficiency.
Data Source
AI summary
An apparatus configured to perform a performance test involving demodulation of input signals by a user equipment, the test including a sequence of consecutive time intervals and the test including providing to a first receive chain of the user equipment a first wireless input signal and providing to a second receive chain of the user equipment a second wireless input signal, and update the first and second wireless input signals for each time interval, the updating including updating a power level of the first and second wireless input signals and, responsive to a determination that a modulation and coding scheme, MCS, update condition is fulfilled, the updating also comprises updating the MCS of at least one of the first or the second wireless input signal.