PUSCH Multi-TRP Transmission for Reliable Uplink Beam Diversity
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring reliable uplink data transmissions while managing power consumption in user equipment devices, particularly in devices with increasing functionality and features.
Innovation Solution
The implementation of uplink data transmission techniques that configure transmissions to multiple transmission-reception-points (TRPs), allowing independent parameter settings for each TRP, leveraging beam diversity to enhance reliability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink data transmission is performed to multiple transmission-reception-points with independent parameter settings, then reliability of uplink data communications is improved, but device complexity increases
Solution Approach 1:
The patent segments the uplink transmission by dividing it into multiple transmission-reception-point (TRP) targets, where each TRP receives independently configured transmissions with separate parameter settings. This segmentation allows the system to achieve diversity gains and improved reliability by transmitting to multiple separate points rather than a single point, directly resolving the contradiction between reliability and complexity through structured division of the transmission task.
Solution Approach 2:
The patent applies local quality by enabling independent parameter configuration for each transmission-reception-point, allowing optimal local settings for each TRP based on its specific channel conditions and requirements. This localized optimization ensures that each segment of the transmission system operates at peak efficiency, improving overall reliability without requiring uniform complex configuration across the entire system.
2Reliability
If beam diversity is utilized through multiple transmission-reception-points, then reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements partial action by allowing the wireless device to transmit to multiple TRPs with independently configured parameters, where the device can selectively activate transmission to specific TRPs based on channel conditions and power availability. This partial activation approach enables the system to achieve diversity gains through multiple TRPs while consuming less power than would be required for full simultaneous transmission to all configured TRPs, thus resolving the contradiction between reliability and power consumption.
Data Source
AI summary
This disclosure relates to techniques for performing physical uplink shared channel transmissions with improved reliability in a wireless communication system. The wireless device may establish a wireless link with a cellular base station. The wireless device may receive uplink data transmission configuration information from the cellular base station. The uplink data transmission configuration information may configure an uplink data transmission to multiple transmission-reception-points. The wireless device may perform the uplink data transmission to the multiple transmission-reception-points.