Tone Classification for Multiplexed Wireless Control Channels
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in extracting multiple types of control information multiplexed in a single message, leading to increased computational time and latency, especially when dealing with large numbers of tones carrying various control information types.
Innovation Solution
A method and apparatus for a wireless device to receive a shared channel message with multiplexed tones, determine extraction parameters such as the total number of tones and distance between them, and dynamically classify and extract subsets of tones corresponding to different types of control information, allowing for simultaneous extraction of multiple types of control information without storing tone allocations, thereby reducing latency and computational time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple types of control information are multiplexed in a single shared channel message, then communication efficiency is improved, but extraction complexity and computational time increase
Solution Approach 1:
The patent segments the shared channel message into multiple subsets, where each subset corresponds to a specific type of control information. This segmentation is achieved by determining extraction parameters such as the number of subsets, tones per subset, and tone offsets. By dividing the multiplexed message into distinct segments, the system enables parallel extraction of different control information types, thereby reducing extraction complexity while maintaining communication efficiency.
2Measurement precision
If traditional sequential extraction methods are used for multiplexed control information, then extraction accuracy is maintained, but latency and computational time increase
Solution Approach 1:
The patent performs preliminary actions by determining all extraction parameters (number of subsets, tones per subset, tone offsets, and modulation schemes) before actually extracting the control information. This preliminary parameter determination enables the receiver to prepare extraction templates and structures in advance, allowing subsequent parallel extraction of multiple control information types without sequential processing delays, thus reducing latency while maintaining accuracy.
3Measurement precision
If tone allocations are stored for classification, then tone classification accuracy is improved, but memory usage and processing overhead increase
Solution Approach 1:
The patent implements a self-service mechanism where the extraction parameters themselves contain the classification information needed for tone identification. By determining parameters such as tone offsets, number of tones per subset, and modulation schemes directly from the message structure, the system enables the receiver to classify tones without requiring external stored allocation tables. This self-contained parameter determination reduces memory usage while maintaining classification accuracy.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A shared channel may include a set of tones carrying multiple types of control information multiplexed together. A wireless device may perform a tone classification method to determine individual subsets of tones from the set of tones for each type of control information to extract each type of control information. The wireless device may determine multiple subsets of tones correspond to multiple types of control information simultaneously based on different extraction parameters. For example, the wireless device may determine a total number of tones in a set of tones, a distance between any given two tones in the set of tones, an offset value, or any combination thereof for the extraction parameters. The wireless device may then use these extraction parameters to determine or extract two or more subsets of tones for two or more corresponding types of control information.