Uplink Channel Transmission Layer Indication Method
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Solution Overview
Problem
In 5G New Radio (NR) systems, network devices are limited in indicating different numbers of transmission layers for various uplink channels, constraining the terminal device's uplink channel transmission capabilities.
Innovation Solution
The method involves a terminal device and network device exchanging indication information to specify a combination of transmission layers for each uplink channel, allowing for distinct numbers of transmission layers to be indicated based on spatial parameters, enabling flexible uplink channel configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network device indicates the same number of transmission layers for all uplink channels, then the indication method is simple, but the uplink channel transmission flexibility is limited
Solution Approach 1:
The patent segments the transmission layer indication into multiple independent indication fields, each corresponding to a specific uplink channel type (PUSCH, PUCCH, SRS). This allows the network device to independently configure the number of transmission layers for each channel type, achieving flexible adaptation to different channel requirements while maintaining a structured and manageable indication framework
Solution Approach 2:
The patent introduces a new dimension of granularity in the indication mechanism by moving from a single unified indication to multiple channel-specific indications. This dimensional expansion enables the system to differentiate and optimize transmission parameters for each uplink channel type, thereby improving adaptability without overwhelming complexity
2Productivity
If different numbers of transmission layers are indicated for different uplink channels, then transmission flexibility improves, but the indication information complexity increases
Solution Approach 1:
The patent applies local quality by assigning different transmission layer configurations to different uplink channel types based on their specific requirements. Each channel (PUSCH, PUCCH, SRS) can have its own optimized number of transmission layers, allowing the system to maximize transmission efficiency for each channel type while avoiding the need to over-provision all channels uniformly
Solution Approach 2:
The patent changes the parameter of transmission layer indication from a single unified value to multiple channel-specific values. This parameter differentiation enables the system to optimize uplink transmission efficiency for each channel type independently, achieving higher overall productivity while the structured parameter management keeps information overhead controlled
3Adaptability or versatility
If unified transmission layer indication is used for all uplink channels, then the system is easy to implement, but it cannot adapt to diverse channel conditions
Solution Approach 1:
The patent segments the uplink channel indications into distinct fields for different channel types (PUSCH, PUCCH, SRS), enabling the network device to independently configure transmission layers for each channel based on its specific conditions and requirements. This segmentation provides adaptability to diverse channel conditions while maintaining a systematic implementation approach
Solution Approach 2:
The patent creates a universal indication framework that handles multiple uplink channel types through a consistent mechanism. The same indication structure and processing logic apply across different channel types, making the system easy to implement while achieving adaptability to diverse channel conditions through channel-specific parameter values
Data Source
AI summary
An indication method includes: receiving, by a terminal device, indication information, and the indication information is used for indicating a combination of a number of transmission layers of at least one uplink channel.