Terminal Device Capability Reporting for Carrier Aggregation
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Solution Overview
Problem
Current carrier aggregation methods in communications systems result in high signaling overheads due to the need for terminal devices to report detailed baseband capabilities for each carrier aggregation group, which increases computational complexity and resource usage.
Innovation Solution
Decoupling baseband capabilities from carrier aggregation capabilities, allowing terminal devices to report them separately, enabling network devices to determine target baseband capabilities based on both, thereby reducing signaling overheads and improving resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices report detailed baseband capabilities for each carrier aggregation group, then network devices can accurately configure terminal capabilities, but signaling overheads increase
Solution Approach 1:
The patent segments the capability reporting into two independent parts: carrier aggregation capability (reported once at terminal level) and baseband capability (reported separately). This segmentation allows the network to obtain necessary information without requiring detailed baseband capability reporting for each carrier aggregation group, thereby reducing signaling overhead while maintaining configuration accuracy.
Solution Approach 2:
The patent extracts the baseband capability reporting from the carrier aggregation capability reporting process. By taking out the baseband capability as a separate, terminal-level attribute, the system eliminates the need to repeat baseband capability information for each carrier aggregation group, thus reducing redundant signaling while preserving the ability to accurately configure terminal capabilities.
2Reliability
If terminal devices report baseband capabilities for each carrier aggregation group, then network devices can determine target capabilities, but computational complexity increases
Solution Approach 1:
The patent segments the capability determination process into two independent steps: first determining carrier aggregation capability (which is reported once), then determining baseband capability (which is reported separately). This segmentation simplifies the network's computational task by avoiding the need to process and cross-reference baseband capabilities across multiple carrier aggregation groups, thereby reducing computational complexity while maintaining accurate target capability determination.
Solution Approach 2:
The patent extracts baseband capability information from the carrier aggregation group-level reporting structure and places it at the terminal level. This extraction allows the network to determine target capabilities by simply combining the carrier aggregation capability with the terminal's baseband capability, eliminating complex processing that would be required if baseband capabilities were reported for each carrier aggregation group.
3Reliability
If detailed baseband capability reporting is required for each carrier, then accurate configuration is achieved, but resource usage increases
Solution Approach 1:
The patent segments the capability information into carrier aggregation capability (reported once) and baseband capability (reported separately). This segmentation reduces the quantity of capability information that needs to be processed and stored, as the baseband capability is not repeated for each carrier aggregation group, thereby reducing resource usage while maintaining configuration accuracy through the separate reporting mechanism.
Solution Approach 2:
The patent extracts baseband capability from the carrier aggregation group-level data structure and reports it as a terminal-level attribute. This extraction reduces the overall volume of capability information that the network must process and store, as it eliminates redundant baseband capability repetitions across multiple carrier aggregation groups, while still enabling accurate configuration through the extracted baseband capability information.
Data Source
AI summary
A method includes: determining, by a terminal device, a carrier aggregation capability and baseband capabilities of the terminal device, where the carrier aggregation capability includes a quantity of carriers and a bandwidth of a carrier in a carrier aggregation group supported by the terminal device, and the baseband capabilities include a multiple-input multiple-output (MIMO) capability; sending, by the terminal device, the information of the carrier aggregation capability and the baseband capabilities to a network device; and receiving, by the terminal device, configuration information.