Wireless Repetition Scheduling Across Half and Full Duplex Intervals
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in efficiently managing multiple repetitions of communications in time domain intervals configured for half-duplex or full-duplex communication, leading to inefficiencies and interference issues.
Innovation Solution
A method and apparatus for wireless communication that schedules multiple repetitions of communications, where a first repetition is transmitted or received in a time domain interval configured for either half-duplex or full-duplex communication, and subsequent repetitions are adapted based on the configuration of the first repetition's interval, allowing for flexible use of resources and minimizing overlap and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple repetitions of communication are scheduled in time domain intervals configured for half-duplex or full-duplex communication, then communication reliability is improved, but interference between transmissions increases
Solution Approach 1:
The communication signal is divided into multiple repetitions transmitted in different time domain intervals. Each repetition is a segmented copy of the original communication, allowing the system to achieve reliability through diversity while managing interference by distributing repetitions across different duplexing intervals.
Solution Approach 2:
The system dynamically adapts the transmission of repetitions based on the duplexing configuration of each time domain interval. When a repetition would cause or experience interference in a full-duplex interval, the system adjusts by skipping that repetition or modifying its transmission, thereby dynamically optimizing the balance between reliability and interference avoidance.
2Area of stationary object
If multiple repetitions of communication are transmitted in different time domain intervals, then communication coverage is improved, but system complexity increases
Solution Approach 1:
The system pre-configures multiple time domain intervals with different duplexing modes (half-duplex or full-duplex) before transmission. This preliminary configuration allows the scheduler to plan repetition transmissions in advance, selecting appropriate intervals based on their duplexing characteristics, thereby reducing real-time scheduling complexity while maintaining coverage.
Solution Approach 2:
The system varies the duplexing mode parameter (half-duplex or full-duplex) across different time domain intervals to create diverse transmission opportunities. By changing this parameter, the system expands coverage area while managing complexity through structured parameter variation rather than arbitrary scheduling decisions.
3Productivity
If time domain intervals are configured for full-duplex communication, then spectral efficiency is improved, but interference management becomes more difficult
Solution Approach 1:
The system uses the duplexing configuration (half-duplex or full-duplex) as an intermediary mechanism to manage interference in full-duplex intervals. By selectively placing repetitions in intervals with appropriate duplexing modes, the system leverages the intermediary property of time domain configuration to simplify interference management while maintaining high spectral efficiency in full-duplex intervals.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a grant that schedules multiple repetitions of a communication. A first repetition, of the multiple repetitions of the communication, is to be transmitted or received in a time domain interval configured for one of half-duplex communication or full-duplex communication. A repetition, of the multiple repetitions of the communication, is to be transmitted or received in another time domain interval configured for the other of half-duplex communication or full-duplex communication. The UE may transmit or receive one or more of the multiple repetitions of the communication based at least in part on the configuration of the time domain interval of the first repetition. Numerous other aspects are provided.