UE Transmit Capability Reporting for Coverage and Throughput
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Solution Overview
Problem
Existing wireless communication systems face challenges in enhancing user equipment (UE) transmit (TX) coverage and throughput due to regulatory requirements and high UE TX power backoff, which is not optimized for UEs with advanced TX designs, leading to reduced performance and coverage.
Innovation Solution
A method and apparatus for UE to report enhanced TX performance to a base station (BS) through a message indicating improved properties such as A-MPR, MPR, ACLR, or TX output power, allowing the BS to adjust configurations and resources accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE applies higher TX power backoff (A-MPR and/or MPR) to meet regulatory requirements and ACLR spectrum mask, then UE TX ACLR performance is improved, but UE TX coverage is reduced
Solution Approach 1:
The patent changes the parameter of TX power backoff by allowing UEs with advanced TX designs to report their enhanced capabilities to the network. This enables the network to adjust A-MPR and MPR parameters dynamically based on actual UE capabilities rather than applying uniform conservative settings to all UEs.
2Productivity
If UE uses high-order modulation to achieve higher data rates, then UE TX throughput is improved, but UE TX MPR increases leading to weaker coverage
Solution Approach 1:
The patent enables dynamic adjustment of modulation parameters and MPR settings based on reported UE TX performance enhancement capabilities. The network can configure appropriate MPR values for high-order modulation schemes when the UE reports advanced TX design capabilities, optimizing the trade-off between throughput and coverage.
3Reliability
If BS applies minimum specification requirements to all UEs to ensure compliance, then regulatory requirements are met, but UEs with advanced TX designs cannot benefit from enhanced performance
Solution Approach 1:
The patent implements local quality by allowing different TX performance configurations for different UEs based on their individual capabilities. UEs with advanced TX designs can be configured with more aggressive power backoff settings while UEs with conventional designs maintain conservative settings, ensuring each UE operates at its optimal performance level while maintaining overall regulatory compliance.
Solution Approach 2:
The patent introduces feedback mechanisms where UEs report their TX performance enhancement capabilities to the network. This feedback enables the network to make informed decisions about configuration parameters, adjusting A-MPR and MPR settings based on actual UE capabilities rather than applying uniform minimum requirements.
Data Source
AI summary
A wireless communication method employed by a user equipment (UE) includes: generating a message, wherein the message includes at least one bit indicative of UE transmit (TX) performance enhancement; and sending the message to a base station (BS). The UE includes a wireless communication circuit and a control circuit. The control circuit is configured to generate the message, and instruct the wireless communication circuit to send the message to the BS.