Logical Channel Prioritization Adaptive Grant Selection
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Solution Overview
Problem
Existing logical channel prioritization (LCP) mechanisms in wireless communication systems are inflexible, leading to suboptimal performance in managing uplink resources across multiple logical channels and control information.
Innovation Solution
Implementing a method where a terminal device selects from a plurality of logical channel prioritization settings based on predetermined policies related to uplink grants, allowing for dynamic and adaptive prioritization of uplink data and control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed logical channel prioritization setting is used for all uplink grants, then the system is simple to implement, but the logical channel prioritization performance is suboptimal and inflexible
Solution Approach 1:
The patent divides the single prioritization setting into multiple distinct prioritization settings (first prioritization setting, second prioritization setting, etc.), each tailored for different uplink grant scenarios. This segmentation allows the system to select appropriate prioritization parameters based on specific grant conditions, thereby improving flexibility without requiring complete redesign of the prioritization mechanism.
Solution Approach 2:
The patent introduces dynamic selection among multiple prioritization settings based on uplink grant characteristics. Instead of using a static prioritization configuration, the system dynamically chooses the appropriate prioritization setting for each uplink grant, enabling adaptive resource allocation that responds to varying channel conditions and traffic requirements.
2Productivity
If multiple logical channel prioritization settings are implemented with grant-dependent selection, then the adaptability and performance improve, but the system complexity increases
Solution Approach 1:
The patent pre-configures multiple prioritization settings before actual uplink transmission occurs. Each prioritization setting is prepared in advance with specific parameter configurations suitable for different grant scenarios. This preliminary preparation eliminates the need for complex real-time calculations during transmission, reducing processing overhead while maintaining high adaptability.
Solution Approach 2:
The patent varies prioritization parameters (such as logical channel priorities, resource allocation ratios, etc.) across different prioritization settings based on uplink grant characteristics. By changing these parameters according to specific grant conditions, the system optimizes resource utilization efficiency without requiring complete system redesign.
Data Source
AI summary
Example embodiments of the present disclosure relate to logical channel prioritization. A method includes obtaining an uplink grant from a network device, the uplink grant indicating uplink resources for transmission to the network device and selecting a logical channel prioritization setting from a plurality of logical channel prioritization settings based on a predetermined policy related to the uplink grant, the logical channel prioritization settings defining different sets of prioritization parameters for uplink data in at least one logical channel and uplink control information in occupying the uplink resources. The method further includes generating, based on the logical channel prioritization setting, a packet data unit including at least one of the uplink control information or at least one part of the uplink data for transmission to the network device using the uplink resources. In this way, adaptive and dynamic prioritization across logical channels can be achieved at the terminal device.