Multi-Panel PUSCH Transmission With Spatial Domain Multiplexing
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Solution Overview
Problem
There is a need for enhanced techniques to support multi-panel simultaneous physical uplink shared channel (PUSCH) transmission with spatial domain multiplexing (SDM) in 5G new radio (NR) networks.
Innovation Solution
A user equipment (UE) and base station are configured to perform operations involving simultaneous transmission and reception of beams using multiple panels, utilizing sounding reference signals (SRS) and physical uplink shared channel (PUSCH) with spatial domain multiplexing, including beam management, power control, and scheduling mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-panel simultaneous PUSCH transmission with SDM is implemented, then network capacity and performance are enhanced, but device complexity and coordination requirements increase
Solution Approach 1:
The UE divides its antenna array into multiple independent panels, where each panel can independently transmit PUSCH signals with its own beamforming configuration. This segmentation enables simultaneous spatial multiplexing while managing complexity through modular panel design, allowing the network to achieve higher capacity without requiring monolithic complex hardware architecture.
Solution Approach 2:
The patent introduces spatial dimensionality by enabling transmissions from multiple panels simultaneously in different spatial directions. This multi-dimensional approach allows the system to multiplex multiple PUSCH transmissions in the spatial domain, significantly increasing network capacity and throughput by utilizing three-dimensional spatial resources rather than relying solely on temporal or frequency multiplexing.
2Productivity
If multiple beams are transmitted simultaneously from different panels, then spectral efficiency is improved, but interference management and coordination become more difficult
Solution Approach 1:
Each panel is configured with independent beamforming parameters, spatial filters, and transmission settings optimized for its specific spatial characteristics. This local quality approach allows each panel to transmit with tailored beam patterns that maximize spectral efficiency in their respective spatial directions while minimizing mutual interference, thereby improving overall system productivity without excessive coordination overhead.
Solution Approach 2:
The system employs feedback mechanisms where the network receives channel state information and transmission quality metrics from each panel independently. Based on this feedback, the network dynamically adjusts beamforming parameters, power allocation, and resource assignment for each panel to optimize spectral efficiency while managing interference, thereby resolving the coordination complexity through intelligent adaptive control.
Data Source
AI summary
A user equipment (UE) configured with multi-panel simultaneous physical uplink shared channel (PUSCH) transmission with spatial domain multiplexing (SDM). The UE is configured to receive sounding reference signal (SRS) configuration information from a base station, transmit a first beam using a first panel of the UE, wherein the first beam comprises at least one of SRS or PUSCH and transmit a second beam using a second panel of the UE, wherein the second beam comprises at least one of SRS or PUSCH and wherein the first beam and the second beam are transmitted simultaneously.