RACH Preamble Partitioning for Early Feature Reporting
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Solution Overview
Problem
Existing wireless communication protocols fail to efficiently utilize and report new features such as RACH partitioning, slice-based RACH, RedCap, SDT, and NTN features introduced in 4G and 5G networks, leading to inefficient network troubleshooting and resource allocation.
Innovation Solution
Implementing methods for user equipment (UE) to receive and transmit preamble configurations associated with these features, allowing early reporting of successful and unsuccessful connections, using RACH partitioning, and logging unsupported features in a UE information response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing wireless communication protocols are used, then network compatibility is maintained, but new features such as RACH partitioning, slice-based RACH, RedCap, SDT, and NTN features cannot be efficiently utilized and reported
Solution Approach 1:
The patent applies preliminary action by having the UE log feature establishment information during the random access procedure itself, before normal data transmission begins. The UE prepares and stores feature usage data in advance, so that when the network requests feature reports, the information is already available and accurate, enabling reliable reporting of new features without waiting for subsequent communication phases.
Solution Approach 2:
The patent introduces an intermediary mechanism by using a dedicated logging structure within the UE that captures feature establishment information separately from regular communication data. This intermediary logging system acts as a bridge between the random access procedure and the feature reporting mechanism, ensuring that new feature usage is captured and reported accurately without disrupting existing protocol operations.
2Adaptability or versatility
If RACH partitioning is implemented for new features, then feature-specific random access is enabled, but the complexity of preamble configuration and feature reporting increases
Solution Approach 1:
The patent applies segmentation by dividing the random access preamble configurations into distinct groups, each associated with specific features. Different preamble configurations are allocated for different feature types (e.g., RedCap, NTN, slice-based access), allowing the UE to select appropriate preambles based on the feature being accessed. This segmentation simplifies the configuration management by organizing complex preamble settings into feature-specific categories rather than requiring a single unified configuration.
Solution Approach 2:
The patent applies preliminary action by having the network pre-configure and signal multiple preamble configurations to the UE before the random access procedure begins. The UE receives and stores these pre-configured preamble settings in advance, associated with specific features, so that during the random access procedure, the UE can quickly select the appropriate preamble without complex real-time configuration decisions, thereby reducing operational complexity.
3Stability of the object's composition
If feature reporting is delayed until after RRC connection establishment, then connection stability is maintained, but early detection of unsupported features is prevented
Solution Approach 1:
The patent applies preliminary action by having the UE log feature establishment information during the random access procedure itself, before RRC connection establishment is complete. The UE captures and stores feature usage data in advance, so that when the network requests feature reports, the information is already available. This allows early detection of unsupported features while maintaining connection stability, as the logging occurs in the background without disrupting the connection establishment process.
4Measurement precision
If comprehensive feature logging is implemented, then feature reporting accuracy is improved, but the amount of data to be processed and reported increases
Solution Approach 1:
The patent applies the taking out principle by extracting and logging only the specific feature establishment information that is relevant for reporting. Rather than logging all possible communication parameters, the UE selectively captures feature-specific data (e.g., which features were attempted, which were successfully established). This extraction approach maintains high reporting accuracy by focusing on relevant features while minimizing the overall data volume that needs to be processed and reported.
Solution Approach 2:
The patent applies discarding and recovering by selectively discarding feature logging information that is not requested or relevant, while recovering and reporting only the necessary feature data when the network requests it. The UE maintains a compact log of feature establishment information and selectively reports based on network requests, thereby maintaining accuracy for requested features while reducing unnecessary data transmission and processing overhead.
Data Source
AI summary
Methods and apparatuses are disclosed for random access channel (RACH) report enhancements. In one example embodiment, a user equipment (UE) may be configured to implement operations including: receiving a set of preamble configurations associated with features from a network; selecting a preamble from the set of preamble configurations; and transmitting the selected preamble to initiate random access with the network utilizing RACH partitioning to use a feature.