Dynamic Time Domain Structure Indication for Unlicensed Spectrum Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems using unlicensed spectra, terminals currently need to continuously monitor control information, leading to energy loss and incorrect scheduling due to the inability to dynamically indicate uplink/downlink configurations within channel occupancy time.
Innovation Solution
A method where a network device sends indication information to a terminal to dynamically configure time domain structures, allowing the terminal to learn available time units in advance and reduce unnecessary monitoring, thereby saving energy and improving scheduling accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminals continuously monitor control information to determine available time units, then scheduling accuracy is improved, but energy consumption increases
Solution Approach 1:
The network device performs preliminary action by sending indication information before the terminal needs to determine available time units. The indication information includes time domain structure configuration that pre-specifies which time units are available for uplink/downlink transmission, allowing the terminal to acquire this information in advance without continuous monitoring.
Solution Approach 2:
The network device provides feedback through the indication information that dynamically indicates the time domain structure configuration. This feedback mechanism allows the terminal to understand the scheduled time units without needing to continuously monitor control information, resolving the contradiction between scheduling accuracy and energy consumption.
2Reliability
If terminals continuously monitor control information within channel occupancy time, then scheduling accuracy is improved, but time loss increases
Solution Approach 1:
The network device sends indication information in advance within the channel occupancy time, providing the terminal with the time domain structure configuration before the terminal would need to continuously monitor. This preliminary provision of information reduces the time the terminal spends monitoring control information while maintaining accurate scheduling.
3Adaptability or versatility
If dynamic indication of uplink/downlink configuration is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The indication information serves multiple functions: it dynamically indicates the time domain structure configuration, specifies available time units for uplink/downlink transmission, and provides the terminal with scheduling information in advance. This multi-functionality achieves dynamic adaptability without proportionally increasing system complexity.
Data Source
AI summary
An information transmission method and an apparatus, where the method includes: sending first indication information to a terminal, where the first indication information is used to indicate a format configuration of one or more time units in first time duration, where the format configuration is a time domain structure configuration of the one or more time units in a transmission direction, where the first time duration is not greater than second time duration, and where the second time duration is a maximum channel occupancy time of a network device.