Sidelink Scheduling via Time Window Segmentation
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Solution Overview
Problem
Wireless communication systems face challenges in managing and optimizing finite wireless channel resources due to signal attenuation and blocking in complex environments, which undermines established channel measuring and reporting mechanisms.
Innovation Solution
The method involves transmitting and receiving control information with indicators of starting times and durations for data transmissions over sidelinks, allowing for efficient use of time and frequency resources, enabling rapid feedback and improved throughput in mission-critical communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional channel measuring and reporting mechanisms are used in complex environments, then signal quality deteriorates due to attenuation and blocking, but resource management complexity increases
Solution Approach 1:
The patent segments the communication resource into distinct time periods within a time window: first time period for control information, second time period for data transmission, and third time period for feedback. This segmentation allows each segment to be optimized independently, improving reliability without requiring complex integrated mechanisms.
Solution Approach 2:
The patent implements preliminary action by having the first UE transmit control information indicating the time interval for data transmission before the actual data transmission occurs. This advance scheduling allows the second UE to prepare for reception and enables efficient resource allocation without requiring complex real-time negotiation.
2Reliability
If more time periods are allocated for control information and feedback, then communication reliability improves, but time resource consumption increases
Solution Approach 1:
The patent structures communication as periodic action by organizing transmissions into repeating time windows with fixed periods for control information, data, and feedback. This periodic structure ensures reliable communication phases are maintained while keeping the overall time window duration controlled and predictable.
Solution Approach 2:
The patent merges multiple communication functions (control information exchange, data transmission, and feedback) into a single integrated time window structure. By combining these functions that would traditionally require separate time allocations, the system achieves reliable communication while minimizing total time consumption.
3Productivity
If sidelink communications are scheduled without structured time windows, then time resource utilization is inefficient, but implementing structured time windows increases scheduling complexity
Solution Approach 1:
The patent implements dynamics by allowing flexible configuration of the time interval duration and positioning within the time window while maintaining the structured three-period format. This dynamic adaptability enables efficient resource utilization for different traffic patterns without requiring complex scheduling algorithms, as the basic structure remains simple and configurable.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for communicating and scheduling communications over sidelink. Certain aspects of the disclosure relate to a method for wireless communication by a user equipment (UE). In some examples, the method includes transmitting, to one or more other UEs, first control information comprising an indicator of a starting time and a duration of a first time interval for communication of a first data transmission over a sidelink, wherein the first time interval comprises one or more time periods of a first time window. In some examples, the method includes transmitting the first data transmission to at least one of the one or more other UEs during the first time interval.