Resource Block Time Alignment in Mixed Channel Occupancy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing resource block sets and cyclic prefix extensions to align transmissions across different channel occupancy times, leading to inefficiencies in resource utilization and interference.
Innovation Solution
The method involves receiving indications of available resource block sets and associated cyclic prefix extension configurations, modifying these configurations to time-align the sets, and transmitting communications via these sets, thereby optimizing channel occupancy time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different WCDs use different cyclic prefix extension configurations for their channel occupancy times, then each WCD can optimize its own transmission, but resource block sets become misaligned causing interference and reduced spectral efficiency
Solution Approach 1:
The patent modifies cyclic prefix extension configurations by changing temporal parameters to align resource block sets across different WCDs. Specifically, WCDs adjust their CPE configurations so that resource block sets occupy the same time resources, transforming the parameter structure from independent to coordinated timing.
Solution Approach 2:
The patent creates equipotential timing conditions by ensuring all WCDs operate with synchronized resource block set boundaries. By aligning the start and end times of resource block sets across different WCDs, the system eliminates timing disparities that cause interference, making all transmitters operate at equivalent temporal positions.
2Productivity
If resource block sets are not time-aligned across mixed channel occupancy times, then WCDs maintain independent transmission schedules, but resource utilization efficiency decreases
Solution Approach 1:
The patent merges previously separate and misaligned resource block sets from different WCDs into coordinated, time-aligned sets. By combining the timing structures of multiple WCDs and adjusting their CPE configurations, the system creates unified resource utilization where resource block sets from different WCDs occupy synchronized time intervals, eliminating gaps and overlaps.
3Device complexity
If WCDs use independent cyclic prefix extension configurations, then device complexity remains low, but spectral efficiency is reduced due to misaligned transmissions
Solution Approach 1:
The patent applies preliminary action by having WCDs pre-coordinate and align their cyclic prefix extension configurations before actual data transmission begins. The alignment of resource block sets is established in advance through configuration exchange and adjustment, ensuring that when transmissions occur, they are already time-synchronized, thereby achieving high spectral efficiency without complex real-time coordination.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may receive, from one or more additional WCDs, one or more indications of available resource block sets and associated cyclic prefix extension (CPE) configurations, the available resource block sets associated with a mixed channel-occupancy time (COT). The WCD may modify at least one of the CPE configurations to time-align the available resource block sets for transmission of one or more communications. The WCD may transmit the one or more communications via the available resource block sets. Numerous other aspects are described.