Unequal PRG Sizes for Multi-Codeword Downlink Decoding
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in multiple-codeword downlink data transmissions due to the use of uniform precoding resource block group (PRG) sizes, which can lead to suboptimal performance in terms of channel estimation accuracy and inter-device interference.
Innovation Solution
Implementing unequal PRG sizes for different codewords in multiple-codeword downlink data transmissions, allowing for dynamic or static configuration of PRG sizes based on the specific requirements of each set of layers, thereby optimizing channel estimation and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If uniform PRG sizes are used for all codewords in multiple-codeword downlink data transmissions, then system complexity is reduced and ease of operation is improved, but channel estimation accuracy deteriorates and inter-device interference increases
Solution Approach 1:
The patent applies local quality by configuring different PRG sizes for different codewords based on their specific channel conditions and requirements. Each codeword can have its own optimized PRG size, allowing the system to adapt locally to varying channel characteristics across different layers and codewords, thereby improving channel estimation accuracy without requiring uniform configuration across the entire system.
2Reliability
If unequal PRG sizes are configured for different codewords, then channel estimation accuracy and interference reduction are improved, but control signaling overhead and device complexity increase
Solution Approach 1:
The patent implements dynamics by enabling flexible and adaptive configuration of PRG sizes for different codewords. The system can dynamically adjust PRG sizes based on channel conditions, transmission requirements, and interference levels. This dynamic configuration allows the system to optimize communication reliability adaptively while managing complexity through structured configuration mechanisms.
Solution Approach 2:
The patent applies segmentation by dividing the downlink transmission into multiple codewords, each potentially associated with different sets of layers and having independent PRG size configurations. This segmentation allows the system to treat different codewords independently, enabling tailored PRG size optimization for each codeword based on its specific requirements, thereby improving overall reliability without requiring monolithic configuration.
3Productivity
If unequal PRG sizes are used for different codewords, then resource efficiency and throughput are improved, but power consumption increases due to more complex processing
Solution Approach 1:
The patent applies parameter changes by varying the PRG size parameter for different codewords based on channel conditions and transmission requirements. By changing the PRG size parameter adaptively, the system can optimize throughput for each codeword independently. This parameter optimization allows the system to achieve higher overall throughput while managing power consumption by applying different PRG sizes only where necessary rather than uniformly across all transmissions.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A receiving device may receive (e.g., from a transmitting device) one or more control messages indicating a first physical resource block (PRB) bundling size for a first set of two or more layers of a downlink shared channel and a second PRB bundling size for a second set of two or more layers of the downlink shared channel. The receiving device may receive a downlink transmission (e.g., a downlink shared channel transmission) that includes multiple codewords, such as a first codeword corresponding to the first set of two or more layers and a second codeword corresponding to the second set of two or more layers. The receiving device may receive the downlink transmission and may decode each codeword based on one or more channel estimates using the first PRB bundling size and the second PRB bundling size.