Wireless Scheduling Flexibility for Multiple Transport Blocks
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Solution Overview
Problem
Current wireless communication systems, particularly in MTC and NB-IoT scenarios, face inefficiencies in scheduling multiple transport blocks, leading to high overhead and low transmission efficiency due to the lack of flexibility and slower configuration update rates in existing Semi-Persistent Scheduling (SPS) mechanisms, resulting in wasted downlink resources and suboptimal performance.
Innovation Solution
A method is introduced that allows for efficient scheduling of multiple transport blocks using Downlink Control Information (DCI), enabling flexible scheduling with reduced overhead and shorter delays, by utilizing techniques such as bundling or multiplexing ACK/NACK feedback and optimizing time domain resource allocation, which can include using the LTE control region for downlink transmission even in non-LTE frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Semi-Persistent Scheduling (SPS) is used for scheduling multiple transport blocks, then configuration stability is maintained, but scheduling flexibility is reduced and overhead increases
Solution Approach 1:
The patent segments the scheduling process into two parts: SPS provides periodic resource allocation for stable traffic patterns, while dynamic scheduling handles variable traffic demands. This segmentation allows the system to benefit from both SPS efficiency and dynamic flexibility without paying the full overhead of pure dynamic scheduling for all traffic.
Solution Approach 2:
The patent introduces dynamic scheduling mechanisms that can adjust resource allocation in real-time based on traffic conditions, complementing the static SPS approach. This dynamic component enables flexible adaptation to changing traffic patterns while maintaining the efficiency of SPS for predictable traffic.
2Productivity
If SPS mechanism is used for scheduling, then resource allocation is simplified, but configuration update rate decreases and transmission efficiency is reduced
Solution Approach 1:
The patent uses SPS to pre-allocate resources for periodic traffic patterns, eliminating the need for repeated scheduling decisions for predictable traffic. This preliminary action reduces the configuration update rate requirement while maintaining high transmission efficiency for regular traffic flows.
Solution Approach 2:
The patent introduces dynamic scheduling as an intermediary mechanism that bridges the gap between static SPS and real-time traffic demands. This intermediary handles configuration updates for variable traffic without requiring complete re-scheduling, thus improving update rate while maintaining efficiency.
3Productivity
If multiple transport blocks are scheduled using traditional methods, then resource allocation is straightforward, but downlink resource utilization is suboptimal
Solution Approach 1:
The patent merges SPS and dynamic scheduling into a unified framework where both mechanisms can operate simultaneously on different transport blocks or different time periods. This merging enables better downlink resource utilization by allocating resources through SPS for stable traffic and dynamic scheduling for variable traffic, without significantly increasing allocation complexity.
Data Source
AI summary
The present disclosure provides a method of transmitting and/or receiving a transport block. The method includes: receiving and/or transmitting a transport block according to information for scheduling multiple transport blocks. The present disclosure also provides a method for downlink transmission, a method of receiving an NRS on a non-anchor carrier, and corresponding UE, base station, and computer readable medium.