Padding Duration Reallocation for Wireless Symbol Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face inefficiencies in utilizing padding duration within transmission time intervals (TTIs) due to the mismatch between symbol duration and subcarrier spacing (SCS) numerology, leading to underutilization of communication resources and increased latency.
Innovation Solution
The system configures a padding duration within TTIs based on SCS numerology, allowing for the reallocation of this duration to include additional symbols and cyclic prefixes, enabling more efficient use of communication resources and reducing latency by aligning symbol boundaries across different SCS configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If padding duration is allocated in TTI according to SCS numerology, then symbol alignment is maintained, but communication resources are underutilized and latency increases
Solution Approach 1:
The patent dynamically reallocates the padding duration within the TTI to accommodate additional symbols when the padding duration exceeds the symbol duration. This dynamic adjustment allows the system to adaptively utilize available time resources, transforming previously static padding into productive transmission time for additional symbols, thereby resolving the contradiction between maintaining symbol alignment and improving resource utilization
Solution Approach 2:
The patent changes the parameter of padding duration by comparing it with the symbol duration and conditionally allocating it for additional symbols. This parameter-based decision mechanism allows the system to maintain symbol alignment when needed while maximizing resource utilization when the padding duration permits, thus resolving the technical contradiction
2Manufacturing precision
If padding duration is allocated in TTI according to SCS numerology, then symbol alignment is maintained, but latency increases
Solution Approach 1:
The patent converts the previously harmful effect of padding duration (which caused latency) into a beneficial resource for transmitting additional symbols. By reallocate
3Productivity
If additional symbols are transmitted during padding duration, then resource utilization improves, but device complexity increases
Solution Approach 1:
The patent implements a self-service mechanism where the UE autonomously determines whether to allocate padding duration for additional symbols by comparing padding duration with symbol duration. This self-service approach reduces device complexity by eliminating the need for complex centralized scheduling, allowing each UE to independently optimize resource utilization based on local conditions
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A device may receive an indication of a subcarrier spacing (SCS) for communications in a plurality of transmission time intervals (TTIs), where a TTI include a set of symbols, a corresponding set of cyclic prefixes, and a padding duration. The device may receive a control signal indicating a configuration for the padding duration, at least a portion of which may be reallocated as one or more additional symbols with corresponding one or more additional cyclic prefixes. In some examples, the one or more additional cyclic prefixes and at least a first portion of the set of cyclic prefixes may be reduced in duration in comparison with a remaining portion of the set of cyclic prefixes. The device may communicate during the padding duration using the one or more additional symbols and the corresponding one or more additional cyclic prefixes.