Downlink Signal Reception via Multi-Subframe Scheduling
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Solution Overview
Problem
The increasing number of user equipment (UEs) and the growing amount of data and control information in wireless communication systems pose challenges in efficiently using limited radio resources, particularly in reducing latency and supporting new radio access technologies.
Innovation Solution
A method and device for efficiently receiving and transmitting downlink signals by utilizing multiple subframes with distinct scheduling information and data channels, where each subframe includes a control region and a data region, allowing for consecutive data and control channel transmission, thereby optimizing resource utilization and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple subframes with distinct scheduling information and data channels are used, then resource utilization efficiency is improved, but system complexity increases
Solution Approach 1:
The patent segments the downlink transmission into multiple types of data channels (first type DL data channel in first subframe, second type DL data channel in second subframe) with distinct scheduling information. This segmentation allows different resource allocation strategies for different channel types, improving overall resource utilization while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent implements dynamic resource allocation by allowing the base station to flexibly assign different scheduling information and data channel types across multiple subframes based on traffic conditions. The UE adapts by receiving and processing different scheduling information formats, enabling the system to optimize resource usage dynamically without requiring complete redesign of the protocol structure.
2Loss of time
If consecutive data and control channel transmission is implemented, then latency is reduced, but signal processing complexity increases
Solution Approach 1:
The patent employs preliminary scheduling actions where the base station sends scheduling information in advance in the control region of each subframe before the actual data transmission. This allows the UE to prepare for upcoming data reception, reducing processing latency while maintaining manageable complexity through predictable, pre-announced transmission patterns.
Solution Approach 2:
The patent implements continuous transmission of control and data channels across consecutive subframes without idle gaps. The control region of one subframe seamlessly transitions to the data region, maintaining continuous useful action. This reduces latency by eliminating waiting periods while the structured continuity provides regular processing rhythms that manage complexity.
Data Source
AI summary
First downlink scheduling information for a first subframe and second downlink scheduling information for a second subframe can be transmitted and received in the first subframe. A first type downlink data channel can be transmitted and received in the first subframe according to the first downlink scheduling information, and a second type downlink data channel can be transmitted and received in the second subframe according to the second downlink scheduling information. Each of the first subframe and the second subframe may comprise a downlink control region and a data region in a time domain. The first downlink scheduling information and the second downlink scheduling information can be transmitted and received in the downlink control region of the first subframe. The first type downlink data channel is transmitted and received in the data area of the first subframe, and the second type downlink data channel can be transmitted and received in the downlink control region of the second subframe. The data area of the first subframe and the downlink control area of the second subframe can be continuous with each other.