Wireless Control Information Multiplexing via Segmentation

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Solution Overview

Problem

In wireless mobile communication systems, existing methods for multiplexing data and control sequences face challenges in efficiently mapping control information, particularly when multiple types are present, leading to potential errors and increased power consumption due to delayed error detection and puncturing schemes.

Innovation Solution

A method is introduced for mapping control information by separating it into distinct types and allocating them to specific resource elements in a matrix structure, ensuring that data information is not overwritten and maintaining efficient error detection by avoiding corruption of cyclic buffers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If control information is multiplexed with data information using existing methods, then transmission capability is maintained, but errors occur and power consumption increases due to delayed error detection and puncturing schemes

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments control information into different types (first control information and second control information) and applies different multiplexing strategies to each type. First control information is rate-matched with data information, while second control information punctures the data information. This segmentation allows for more reliable error detection and reduces power consumption by avoiding the need to process entire corrupted blocks.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different quality treatments to different parts of the control information. By identifying and separating critical control information (first type) from less critical control information (second type), the system maintains high reliability for essential control data while allowing some flexibility in less critical areas, thereby reducing overall power consumption without sacrificing essential transmission reliability.

Inventive Principle:

Principle #3Local quality

2Productivity

If control information is multiplexed with data information, then transmission capability is maintained, but data information may be overwritten leading to errors

Engineering Contradiction:

Improvetransmission capabilityVSAvoiderror rate

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent divides control information into two segments: first control information that is rate-matched with data information (preventing overwriting) and second control information that punctures data information. This segmentation ensures that critical control information does not overwrite data information, thereby maintaining both transmission capability and reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent performs preliminary classification of control information before multiplexing. By identifying which control information should be rate-matched versus which should puncture, the system prevents potential overwriting errors before they occur, maintaining transmission capability while reducing error rates.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If puncturing schemes are used for control information multiplexing, then transmission flexibility is improved, but error detection is delayed and power consumption increases

Engineering Contradiction:

Improvetransmission flexibilityVSAvoiderror detection delay

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent segments control information so that only second control information (non-critical) punctures the data information, while first control information (critical) is rate-matched. This allows the system to maintain transmission flexibility through puncturing where appropriate while avoiding error detection delays for critical control information that uses rate-matching.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different error detection qualities to different parts of the control information. Critical control information receives enhanced protection through rate-matching with earlier error detection, while less critical information allows for puncturing. This local differentiation reduces overall error detection delay while maintaining necessary flexibility.

Inventive Principle:

Principle #3Local quality

4Productivity

If control information is multiplexed with data information, then resource utilization is improved, but cyclic buffers may be corrupted

Engineering Contradiction:

Improveresource utilizationVSAvoidbuffer corruption

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent segments control information into first control information (rate-matched) and second control information (puncturing). This segmentation prevents buffer corruption by ensuring that critical control information is processed through rate-matching which maintains buffer integrity, while allowing resource utilization benefits from puncturing less critical information.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10159064B2Method for multiplexing data and control information

Publication Date: 2018.12.18 LG ELECTRONICS INC

AI summary

A method for multiplexing a data information stream, including a systematic symbol and a non-systematic symbol, and a control information stream of at least three types in a wireless mobile communication system is disclosed. The method includes mapping the data information stream to a resource area so that the systematic symbol is not mapped to a specific resource area to which the control information stream is mapped, and mapping the control information stream to the specific resource area.