HARQ Packet Segmentation for Low-Power Wireless Memory Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing and storing Hybrid Automatic Repeat Request (HARQ) packets due to large memory requirements, which are power-intensive and inefficient, especially in portable devices, as they need to handle variable-sized packets and error correction, leading to memory fragmentation.
Innovation Solution
Dividing HARQ packets into sub-packets and recording their storage locations for efficient storage and retrieval, allowing for compact and low-power memory usage, compatible with various ARQ protocols and HARQ methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HARQ packets are stored in full form in volatile memory, then reliable error correction and retransmission capability are improved, but memory size and power consumption increase excessively
Solution Approach 1:
The patent segments HARQ packets into multiple sub-packets before storage. Instead of storing complete HARQ packets, the system divides each packet into smaller sub-packets and stores only the necessary portions in volatile memory. This segmentation reduces the memory footprint while preserving the essential information needed for error correction and retransmission operations.
2Reliability
If HARQ packets are stored in full form in volatile memory, then reliable error correction and retransmission capability are improved, but power consumption increases excessively
Solution Approach 1:
By segmenting HARQ packets into sub-packets and storing only essential portions, the system reduces the amount of data that needs to be maintained in volatile memory. This reduction directly decreases the power consumption associated with memory operations while preserving error correction capability through selective storage of critical packet components.
3Quantity of substance
If HARQ packets are divided into sub-packets and stored selectively, then memory size and power consumption are reduced, but storage management complexity increases
Solution Approach 1:
The system performs preliminary segmentation of HARQ packets into sub-packets before storage, and pre-records the storage locations and ordering information. This preliminary organization simplifies subsequent retrieval operations, as the system already has the mapping information needed to reconstruct packets without requiring complex real-time management decisions.
Solution Approach 2:
The patent introduces an intermediary data structure or metadata system that records the storage locations and ordering of sub-packets. This intermediary layer acts as a mediator between the segmented sub-packets and the reconstruction process, simplifying the management complexity by providing a clear mapping mechanism without requiring complex real-time management logic.
4Quantity of substance
If HARQ packets are divided into sub-packets, then memory efficiency is improved, but retrieval and recombination processes become more complex
Solution Approach 1:
The system performs preliminary recording of storage locations and sub-packet ordering information during the storage phase. This preliminary action ensures that when retrieval is needed, the system already has the necessary mapping data to efficiently recombine sub-packets without requiring complex real-time analysis or decision-making processes.
Data Source
AI summary
Apparatuses of wireless subscribers that manage storage of HARQ packets are disclosed. One embodiment of a wireless subscriber includes receiver circuitry for wirelessly receiving HARQ packets. CRC processing circuitry checks an error status of the received HARQ packets. A HARQ memory controller divides the HARQ packets into HARQ sub-packets for storage in HARQ memory. The HARQ memory controller records storage locations and a storage order of each of the HARQ sub-packets.