HARQ Data Cache Selective Storage for Power Optimization

Solution Overview

Problem

Existing HARQ data storage management solutions lead to reduced utilization rates and increased power consumption due to the storage of both correctly and incorrectly decoded data in HARQ data caches, resulting in inefficient bandwidth usage and excessive power consumption.

Innovation Solution

An HARQ data storage management method and device that selectively stores only incorrectly decoded HARQ data during transmissions and retransmissions, using a read/write arbitration mechanism to optimize cache utilization and reduce power consumption by avoiding the storage of correctly decoded data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all HARQ data (including correctly decoded data) is stored in the HARQ data cache, then data retransmission can be supported, but the utilization rate of the HARQ data cache decreases and power consumption increases

Engineering Contradiction:

Improvedata retransmission capabilityVSAvoidpower consumption of HARQ data cache

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The patent extracts only the necessary data (incorrectly decoded HARQ data) from the complete set of HARQ data for storage in the cache. By using extraction, the system stores only the subset of data that actually requires retransmission, eliminating the storage of correctly decoded data that would consume cache resources and power unnecessarily.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by differentiating between correctly decoded and incorrectly decoded HARQ data, assigning different storage treatments to each. Only incorrectly decoded data receives the storage function, while correctly decoded data is excluded. This localized application of the storage function optimizes both cache utilization and power consumption.

Inventive Principle:

Principle #3Local quality

2Reliability

If all HARQ data is stored in the HARQ data cache, then complete data availability is ensured, but the utilization rate of the HARQ data cache is reduced

Engineering Contradiction:

Improvedata availabilityVSAvoidutilization rate of HARQ data cache

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent extracts only the necessary data (incorrectly decoded HARQ data) from the complete set of HARQ data for storage in the cache. By using extraction, the system stores only the subset of data that actually requires retransmission, eliminating the storage of correctly decoded data that would consume cache resources and power unnecessarily.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by differentiating between correctly decoded and incorrectly decoded HARQ data, assigning different storage treatments to each. Only incorrectly decoded data receives the storage function, while correctly decoded data is excluded. This localized application of the storage function optimizes both cache utilization and power consumption.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP3896881B1HARQ data storage management method and device and HARQ data buffer

Publication Date: 2023.08.30 SANECHIPS TECH CO LTD

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AI summary

Provided are an HARQ data storage management method and device, and an HARQ data cache. The method includes: when first transmission or retransmission is performed based on an HARQ, receiving operation control information, wherein when performing first transmission or non-last retransmission based on the HARQ, the received operation control information comprises a write command and write data, and the write data received each time is HARQ data incorrectly decoded; when performing the first retransmission or the non-last retransmission based on the HARQ, storing the write data according to the write command.