Logical Channel Limits for Dynamic Grant Transmission on Active BWP
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Solution Overview
Problem
Existing wireless communication systems fail to efficiently apply or change logical channels in wireless communication systems, specifically addressing the challenge of configuring logical channel restrictions when a Bandwidth Part (BWP) is configured for each cell and data transmission according to the logical channel restrictions is not configured on the active BWP.
Innovation Solution
A method and apparatus for a terminal in a wireless communication system to receive configuration information for logical channels, identify physical layer priorities, and transmit data using allocated uplink resources, even if the logical channel restrictions are not configured on the active BWP, by utilizing dynamic grants or changing the logical channel restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If logical channel restrictions are configured on the active BWP, then data transmission quality is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic logical channel restrictions that are activated only when dynamic grants are allocated, rather than being statically configured. The MAC entity dynamically adjusts the logical channel prioritization function based on the presence of physical layer priority indicators in DCI formats, enabling flexible adaptation to different transmission scenarios without permanent configuration overhead.
Solution Approach 2:
The patent changes the operational parameters of logical channel restrictions based on the allocation type. When dynamic grants are allocated with physical layer priority indicators, the system transitions from standard logical channel prioritization to a modified version that incorporates physical layer priority, effectively changing the prioritization parameters without requiring complete reconfiguration.
2Adaptability or versatility
If logical channel restrictions are dynamically changed, then adaptability is improved, but device complexity increases
Solution Approach 1:
The MAC entity automatically detects the allocation type and adjusts its logical channel prioritization behavior without external control signals. When the MAC entity receives a DCI format with a physical layer priority indicator, it autonomously activates the modified prioritization function, eliminating the need for separate activation commands or complex control mechanisms.
Solution Approach 2:
The patent extracts the dynamic adjustment mechanism from the overall configuration system, making it an independent feature that operates based on the presence of physical layer priority indicators. This separation allows the dynamic restriction feature to be added without fundamentally redesigning the existing logical channel prioritization framework.
3Productivity
If physical layer priority is indicated in control information, then productivity is improved, but measurement precision requirements increase
Solution Approach 1:
The patent applies physical layer priority indicators selectively only to dynamic grant allocations, rather than to all resource allocations. This partial application approach improves productivity for time-sensitive transmissions without requiring the system to maintain high precision priority indication mechanisms for all allocation types, reducing the overall measurement precision burden.
Data Source
AI summary
The present disclosure relates to a communication technique for combining an IoT technology with a 5G communication system for supporting a higher data rate than a beyond 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety-related services, and the like) on the basis of 5G communication technologies and IoT-related technologies. Disclosed are a method and apparatus for applying or changing a logical channel limit in a wireless communication system.