Indicating Spatial Characteristic Parameter Sets in 5G Systems
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Solution Overview
Problem
In 5G communication systems, indicating spatial characteristic parameters such as beams and precoding matrices to user equipment results in significant signaling overhead, which is inefficient and can burden the communication system.
Innovation Solution
A method where a network-side device indirectly indicates a spatial characteristic parameter set to a user-side device using first indication information, such as beam indication information or precoding matrix indication, allowing the user-side device to determine the appropriate parameter set based on mapping relationships, thereby reducing the need for explicit signaling and minimizing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If explicit indication of spatial characteristic parameter sets is used, then parameter transmission accuracy is improved, but signaling overhead increases significantly
Solution Approach 1:
The patent introduces a mapping relationship as an intermediary between the spatial characteristic parameter sets and the indication information. Instead of directly transmitting the complete parameter sets, the system transmits indication information that maps to pre-configured parameter sets, thereby reducing signaling overhead while maintaining transmission accuracy through the established mapping correspondence.
Solution Approach 2:
The patent applies preliminary action by pre-configuring multiple spatial characteristic parameter sets and establishing mapping relationships before actual communication. The network-side device configures these parameter sets in advance, and the user-side device stores the corresponding mapping relationships, enabling efficient indirect indication during communication without needing to transmit the full parameter sets each time.
2Quantity of substance
If indirect indication method is used, then signaling overhead is reduced, but parameter indication precision may deteriorate
Solution Approach 1:
The patent segments the spatial characteristic parameter sets into multiple predefined groups, each associated with specific indication information. By dividing the complete parameter sets into manageable segments and assigning unique indication identifiers to each segment, the system achieves both compact signaling (reducing overhead) and precise indication (through unique mapping) simultaneously.
3Adaptability or versatility
If multiple spatial characteristic parameter sets are configured, then system adaptability is improved, but control complexity increases
Solution Approach 1:
The patent implements universality by creating a unified mapping relationship mechanism that handles multiple spatial characteristic parameter sets through a single indirect indication framework. The same mapping approach works for different parameter sets (beams, precoding matrices, etc.), allowing the system to maintain high adaptability across various configurations while using a standardized control method that reduces overall complexity.
Data Source
AI summary
A method of indicating a spatial characteristic parameter set, a user-side device and a network-side device are provided. The method includes: acquiring first indication information, wherein the first indication information indirectly indicates a spatial characteristic parameter set scheduled to the user-side device, the spatial characteristic parameter set is one of a plurality of spatial characteristic parameter sets configured for the user-side device; determining, according to the first indication information, the spatial characteristic parameter set scheduled to the user-side device.