Wireless Resource Allocation via Terminal-Base Station MCOT Coordination
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, there is a challenge in efficiently allocating resources when transmitting signals through unlicensed bands, as existing methods struggle to optimize channel access procedures to avoid interference and maximize resource utilization.
Innovation Solution
The method involves a terminal and a base station collaborating to determine a maximum channel occupancy time (MCOT) within an unlicensed band, where the terminal acquires and shares this time with the base station to configure a time interval for downlink signal transmission, allowing efficient use of resources by aligning scheduling information and channel access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal acquires and shares MCOT information with the base station to configure time intervals for downlink signal transmission, then resource allocation efficiency is improved, but the complexity of channel access procedures increases
Solution Approach 1:
The terminal performs channel access procedure in advance to acquire MCOT information before downlink signal transmission, and shares this information with the base station. This preliminary action allows the base station to configure appropriate time intervals for downlink transmission without requiring real-time channel access decisions, thereby improving resource allocation efficiency while managing procedure complexity through advance preparation
Solution Approach 2:
MCOT information acts as an intermediary between the terminal's channel access procedure and the base station's downlink signal transmission. The terminal shares MCOT information with the base station, which then uses this intermediate data to determine optimal time intervals for downlink transmission, facilitating coordinated resource allocation without direct real-time interaction between channel access and signal transmission decisions
2Object-affected harmful factors
If the base station transmits downlink signals during configured time intervals within MCOT, then interference is reduced, but the flexibility in signal transmission scheduling decreases
Solution Approach 1:
The base station configures time intervals for downlink signal transmission dynamically based on the received MCOT information from the terminal. Rather than using fixed intervals, the base station adapts the time interval configuration to match the actual channel occupancy characteristics, thereby reducing interference while maintaining scheduling flexibility through dynamic adjustment rather than static allocation
Solution Approach 2:
The base station changes the time interval parameter for downlink signal transmission based on the MCOT information received from the terminal. By adjusting this critical parameter according to actual channel conditions and terminal capabilities, the system reduces interference through optimized timing while preserving flexibility to adapt to different transmission scenarios and service requirements
Data Source
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AI summary
An apparatus and a method for allocating resources in a wireless communication system is provided. More specifically, a method of determining an uplink transmission resource region for performing a channel access procedure of the BS through a channel access procedure type and subcarrier spacing and determining configuration of downlink resources of the BS through scheduling information and slot structure information is proposed. A method of operating a terminal in a wireless communication system includes acquiring a maximum channel occupancy time(MCOT) of the terminal within an unlicensed band, determining a time interval which a base station(BS) can use for downlink signal transmission in the maximum channel occupancy time, transmitting the maximum channel occupancy time and time information related to the time interval to the BS and receiving a downlink signal from the BS during the time interval in the maximum channel occupancy time.