Uplink Resource Allocation for Unlicensed Band OCB Compliance
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Solution Overview
Problem
The existing wireless communication technologies face challenges in efficiently allocating uplink resources in unlicensed frequency bands due to regulatory restrictions, particularly the 80% occupied channel bandwidth requirement, which limits flexibility and adaptability to varying bandwidth scenarios.
Innovation Solution
A network device allocates at least one resource block to a terminal based on a specified frequency hopping pattern, ensuring that the accumulated bandwidth meets the occupied channel bandwidth requirement, allowing for flexible resource allocation by shifting resource blocks across time units while maintaining the same resource structure, thereby adapting to different bandwidth scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed resource interlace structure is used for uplink transmission in unlicensed bands, then the occupied channel bandwidth requirement (80% of system bandwidth) can be met, but the adaptability to flexible bandwidth scenarios is poor
Solution Approach 1:
The patent applies dynamics by making the resource allocation structure changeable rather than fixed. The network device can dynamically adjust the quantity and distribution of resource blocks allocated to terminals based on different bandwidth scenarios and service requirements, allowing the system to adapt to flexible bandwidth configurations while maintaining compliance with the 80% occupied channel bandwidth requirement through cumulative resource allocation across multiple time units
Solution Approach 2:
The patent changes key parameters such as the quantity of resource blocks, the distribution pattern, and the time unit configuration to adapt to different bandwidth scenarios. By modifying these parameters dynamically, the system can maintain occupied channel bandwidth compliance while achieving flexibility in adapting to various bandwidth configurations and service types
2Ease of manufacture
If resource blocks are allocated in a fixed pattern, then resource allocation is simple, but scheduling granularity is coarse and flexibility is reduced
Solution Approach 1:
The patent segments the resource allocation into multiple time units, with each time unit containing a configurable quantity of resource blocks. This segmentation allows the network device to allocate resources with finer granularity by adjusting the number of resource blocks per time unit and the number of time units, thereby improving scheduling precision while maintaining allocation simplicity through standardized segment structures
Solution Approach 2:
The patent introduces dynamic configurability in resource block quantity and time unit settings, allowing the system to adjust scheduling granularity according to different service requirements. This dynamic approach enables fine-grained resource allocation when needed while maintaining simpler allocation patterns when service requirements are less demanding
Data Source
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AI summary
This application discloses a signal transmission method, a related device, and a system. The method may include: receiving, by a terminal, resource scheduling information sent by a network device, where the resource scheduling information is used to indicate a second resource set allocated by the network device to the terminal, the second resource set includes at least one resource block, the at least one resource block is from a first resource set, and the first resource set is an integer quantity of resource blocks that are evenly distributed in frequency domain; and performing, by the terminal, uplink transmission on a detected idle frequency domain resource based on the resource scheduling information, where the uplink transmission occupies a plurality of time units, a resource structure of a resource block used for the uplink transmission in each time unit is the same as a resource structure of the second resource set, and frequency locations of resource blocks used for the uplink transmission in adjacent time units are different. According to this application, an accumulated transmission bandwidth in a specific time period can meet an OCB requirement, and more flexible resource allocation can be implemented.