HARQ Entity Mapping for Multi-Carrier Wireless Transmission
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Solution Overview
Problem
In wireless network communications, the limited number of HARQ entities in terminals restricts the simultaneous reception of data blocks across multiple carriers or channels configured by the base station, leading to inefficient communication due to excessive forward error correction and limited bandwidth utilization.
Innovation Solution
A method and apparatus that enable terminals to determine and process HARQ data blocks using HARQ entities mapped to specific frequency resources, allowing the base station to select carriers corresponding to these entities for improved transmission efficiency, even when the number of configured frequency resources exceeds the number of supported HARQ entities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the base station configures a large quantity of frequency resources (carriers or channels) for the terminal, then the bandwidth utilization and communication efficiency are improved, but the terminal cannot simultaneously receive data blocks transmitted over all configured carriers or channels due to limited HARQ entities
Solution Approach 1:
Each HARQ entity is configured to monitor multiple PDCCHs across different frequency resources (carriers or channels). This allows a single HARQ entity to handle data blocks from multiple carriers, enabling the terminal to utilize more frequency resources than the number of HARQ entities without increasing the HARQ entity count.
2Quantity of substance
If the terminal uses multiple HARQ entities to receive data blocks from multiple carriers, then the data transmission capacity is improved, but the device complexity and cost increase
Solution Approach 1:
Each HARQ entity is configured to monitor multiple PDCCHs across different frequency resources (carriers or channels). This allows a single HARQ entity to handle data blocks from multiple carriers, enabling the terminal to utilize more frequency resources than the number of HARQ entities without increasing the HARQ entity count.
Solution Approach 2:
Multiple carriers or channels are merged into a single HARQ entity's monitoring scope. The terminal combines the reception capability for multiple frequency resources into one HARQ entity, reducing the total number of HARQ entities needed while maintaining high data transmission capacity.
3Adaptability or versatility
If the terminal monitors multiple PDCCHs for the same HARQ entity, then the flexibility in carrier selection and transmission efficiency are improved, but the processing complexity increases
Solution Approach 1:
The terminal pre-configures monitoring of multiple PDCCHs for each HARQ entity before actual data transmission. This preliminary configuration allows the terminal to efficiently handle carrier selection and PDCCH monitoring without increasing processing complexity during actual operation, as the monitoring relationships are established in advance.
Data Source
AI summary
The present application describes a data processing method used for implementing data transmission between multiple carriers and a HARQ entity. A terminal receives mapping relationship information sent from a base station, where the mapping relationship information is used to indicate a mapping relationship between a HARQ entity of the terminal and a frequency resource configured by the base station for the terminal. The terminal determines the frequency resource. The terminal determines a HARQ entity corresponding to the frequency resource according to the mapping relationship information and processes a HARQ data block transmitted on the frequency resource by using the HARQ entity. Therefore, carrier communication channels for real-time transmission between the base station and the terminal are increased, to improve transmission efficiency.