Redundancy Version Sequences for Wireless Signal Repetition

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Solution Overview

Problem

Next-generation mobile communication systems face challenges in accommodating explosive data traffic, requiring advanced technologies to support increased transfer rates, a large number of connected devices, ultra-low latency, and high energy efficiency, while existing methods struggle with determining and estimating redundancy versions for wireless signal transmission effectively.

Innovation Solution

A method for configuring and determining a redundancy version (RV) sequence for repetition transmission of wireless signals in a wireless communication system, where a base station semi-statically configures resources for terminals, allowing pre-configured RV values to be used for specific resources, and estimating RV values based on pre-configured sequences and indices, enabling efficient transmission and reception without additional signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If repetition transmission is used to improve reliability, then transmission reliability is improved, but transmission time and latency increase

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidtransmission time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-configuring redundancy version sequences and mapping rules before transmission occurs. The base station and terminal agree in advance on which redundancy versions to use for each repetition, eliminating the need for real-time signaling and decision-making during transmission, thus reducing latency while maintaining reliability benefits of repetition.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent utilizes feedback mechanisms where the base station monitors transmission status and uses this information to determine when to stop repetition transmission. The terminal sends acknowledgment information about received redundancy versions, allowing the base station to adjust transmission duration dynamically, optimizing the balance between reliability and time efficiency.

Inventive Principle:

Principle #23Feedback

2Adaptability or versatility

If dynamic determination of redundancy version is used, then transmission adaptability is improved, but system complexity and processing overhead increase

Engineering Contradiction:

Improvetransmission adaptabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent reduces system complexity by pre-configuring redundancy version sequences and establishing fixed mapping rules between resource indices and redundancy versions. This eliminates the need for complex real-time calculations and dynamic decision-making algorithms, while still providing adaptability through the pre-planned sequences that can accommodate different transmission scenarios.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system performs self-service by automatically determining redundancy versions based on pre-established mapping rules and resource indices without requiring complex external control or manual configuration. The terminal and base station independently follow predetermined sequences, reducing processing overhead and system complexity while maintaining transmission adaptability.

Inventive Principle:

Principle #25Self-service

3Measurement precision

If additional signaling is used to indicate redundancy version, then transmission precision is improved, but energy consumption and overhead increase

Engineering Contradiction:

Improvetransmission precisionVSAvoidenergy consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent extracts the redundancy version indication function from separate signaling messages and integrates it into the existing resource allocation and mapping framework. By embedding redundancy version information within the resource index mapping and pre-configured sequences, the system eliminates redundant signaling while maintaining precise control over which redundancy versions are transmitted, thus reducing energy consumption.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent achieves multi-functionality by making the resource index mapping serve dual purposes: it simultaneously identifies transmission resources and determines redundancy versions. This universal approach eliminates the need for separate signaling messages dedicated to redundancy version indication, reducing overhead and energy consumption while preserving transmission precision.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11239951B2Method for transmitting or receiving wireless signal in wireless communication system and apparatus therefor

Publication Date: 2022.02.01 LG ELECTRONICS INC

AI summary

The present disclosure discloses a method for controlling transmission power in a wireless communication system and an apparatus therefor. Specifically, in a method for performing repetition transmission of a wireless signal by a terminal in a wireless communication system, the method comprises receiving a configuration of multiple resources for repetition transmission of the wireless signal semi-statically by a base station; wherein a redundancy version sequence for repetition transmission of the wireless signal is pre-configured, performing repetition transmission of the wireless signal based on the redundancy version sequence on the remaining resources except for at least one particular resource among the multiple resources; and performing repetition transmission of the wireless signal on the at least one particular resource based on a redundancy version value pre-configured for the at least one particular resource.