Wireless Data Transmission Scheduling via Frequency Hopping
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Solution Overview
Problem
Current MTC technologies face challenges in simultaneously scheduling repeated transmissions and frequency hopping of multiple transmission blocks, which affects time diversity and transmission efficiency, and lacks a standard for configuring the number of repeated transmissions in alternating transmission units.
Innovation Solution
A method and apparatus for a terminal and base station to perform alternating frequency hopping transmission of multiple transmission blocks by receiving and sending schedule information in a physical downlink control channel (PDCCH), obtaining a transmission narrow-band set and size parameter for alternating transmission units, and executing alternating frequency hopping based on these parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repeated transmissions of multiple transmission blocks are scheduled to improve time diversity and transmission efficiency, then transmission reliability is improved, but device complexity increases due to lack of standardized scheduling mechanism
Solution Approach 1:
The patent segments the transmission blocks into multiple groups, where each group contains multiple transmission blocks that can be independently scheduled. This segmentation allows the system to apply different scheduling strategies to different groups, reducing overall scheduling complexity while maintaining transmission reliability through repeated transmissions across groups.
Solution Approach 2:
The patent introduces dynamic scheduling parameters including alternating transmission units with configurable sizes, frequency hopping patterns, and narrowband assignments that can be adapted based on channel conditions. This dynamic approach enables the system to optimize transmission reliability without requiring complex static scheduling mechanisms.
2Productivity
If frequency hopping transmission is implemented to improve time diversity, then transmission efficiency is improved, but device complexity increases due to lack of coordination between repeated transmissions and frequency hopping
Solution Approach 1:
The patent implements periodic frequency hopping patterns where transmission blocks are transmitted at regular intervals across different frequencies. The alternating transmission units create a periodic structure that simplifies coordination between repeated transmissions and frequency hopping, allowing the system to achieve time diversity without complex real-time coordination mechanisms.
Solution Approach 2:
The patent introduces an intermediary scheduling mechanism that mediates between repeated transmissions and frequency hopping by defining alternating transmission units. These units act as intermediaries that organize the transmission structure, making it easier to coordinate frequency hopping across multiple repeated transmissions without requiring direct complex interaction between all transmission parameters.
3Productivity
If alternating transmission mechanism is used to improve time diversity effect, then transmission efficiency is improved, but manufacturing precision decreases due to lack of standard for configuring repeated transmission count
Solution Approach 1:
The patent defines specific parameters for alternating transmission units including the number of repeated transmissions per unit, frequency hopping intervals, and narrowband assignments. By standardizing these parameters, the system achieves precise configuration control while maintaining high transmission efficiency through the alternating transmission mechanism.
Data Source
AI summary
Disclosed is a data transmission method, belonging to the technical field of wireless communications. The method comprises: receiving scheduling information sent by a base station in one PDCCH, wherein the scheduling information is used to schedule the transmission of at least two data blocks; acquiring a narrowband transmission set; acquiring a size parameter of an alternative transmission unit; and according to the narrowband transmission set and the size parameter of the alternative transmission unit, performing frequency hopping alternative transmission of at least two data blocks with the base station. The present disclosure simultaneously realizes the scheduling of repeated transmission and frequency hopping to transmission of multiple data blocks between a terminal and a base station by means of scheduling information in one PDCCH.