Unified Beam Configuration Across NR Component Carriers
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Solution Overview
Problem
In the NR system, configuring different component carriers (CCs) for various transmission modes results in significant signaling overhead due to the need for separate beam information configurations, which is inefficient and delays communication performance.
Innovation Solution
A method and apparatus that allow a terminal device to receive and a network device to transmit unified beam information applicable to multiple CCs supporting multiple transmission modes, reducing signaling overhead and delay by enabling a common beam configuration across different CCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate beam information configurations are used for different CCs in different transmission modes, then each CC can be configured with appropriate beam information, but signaling overhead becomes significant
Solution Approach 1:
The patent applies universality by designing a unified beam information configuration mechanism that serves multiple CCs across different transmission modes (sTRP, sDCI-mTRP, mDCI-mTRP) through a single configuration. The network device transmits one set of beam information that is applicable to all CCs, eliminating the need for separate configurations for each CC and transmission mode combination, thus significantly reducing signaling overhead while maintaining configuration accuracy.
Solution Approach 2:
The patent merges the beam information configuration for multiple CCs and transmission modes into a single unified configuration. Instead of configuring beam information separately for each CC and transmission mode combination, the system combines all these configurations into one common beam information set that applies universally across all CCs, thereby reducing the total signaling overhead.
2Reliability
If separate beam information configurations are used for different CCs, then each CC receives dedicated configuration, but beam indication delay increases
Solution Approach 1:
The unified beam information configuration serves all CCs simultaneously, eliminating the sequential configuration process. The network device transmits one set of beam information that applies to all CCs, allowing the terminal device to determine beam information for multiple CCs at once rather than sequentially, thus reducing beam indication delay while maintaining configuration precision.
Solution Approach 2:
The patent implements preliminary action by configuring beam information in advance for all CCs through a single unified configuration before actual communication begins. This advance configuration eliminates the need for repeated beam indication signals during communication, reducing the time delay associated with beam switching and adaptation.
3Loss of energy
If unified beam information is configured for multiple CCs, then signaling overhead is reduced, but the system must handle multiple transmission modes
Solution Approach 1:
The patent applies universality by designing a beam information configuration that is universally applicable across multiple transmission modes (sTRP, sDCI-mTRP, mDCI-mTRP). The unified configuration mechanism handles all transmission modes through a single common configuration approach, simplifying the system's management of multiple transmission modes while reducing signaling overhead.
Solution Approach 2:
The patent utilizes parameter changes by allowing the terminal device to determine beam information for different transmission modes based on the unified configuration and specific transmission mode parameters. The system maintains flexibility in handling different transmission modes by adjusting parameters such as TCI state indications and beam indication signals according to the specific transmission mode, while maintaining a unified configuration structure.
Data Source
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Figure 2B~3
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AI summary
Provided are a configuration method and apparatus, a terminal device, and a network device. The method includes: the terminal device receives first information, the first information being used to configure beam information of a plurality of component carriers (CCs), the beam information being suitable for the plurality of CCs, and the plurality of CCs supporting a plurality of transmission modes.