Dynamic LCP for Delay-Sensitive Uplink Traffic
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Solution Overview
Problem
Existing logical channel prioritization (LCP) procedures in wireless communication are poorly suited to handle dynamic traffic flows and varying types of traffic, leading to inefficient allocation of network resources and failure to meet intended quality of service (QoS) requirements, resulting in poor user experience and high overhead.
Innovation Solution
An enhanced LCP procedure that incorporates delay-specific information and PDU-set-related information to dynamically allocate uplink resources, allowing the network to flexibly prioritize traffic based on delay status reports (DSR) and protocol data unit set importance (PSI) parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing logical channel prioritization procedures are used, then the system is simple to operate, but it fails to meet quality of service requirements for dynamic traffic flows
Solution Approach 1:
The LCP procedure is enhanced to dynamically adapt to varying traffic conditions by incorporating delay status reports and PDU set importance information. The prioritization parameters are no longer static but are adjusted based on real-time delay thresholds and traffic flow characteristics, enabling the system to meet QoS requirements for dynamic traffic flows while maintaining operational simplicity through automated adjustments.
2Productivity
If traditional LCP procedures are used, then the overhead is low, but network resource allocation is inefficient for varying traffic types
Solution Approach 1:
The invention introduces new parameters including delay status report parameters indicating whether delay thresholds are exceeded, and PDU set importance parameters differentiating between important and non-important data. These parameter changes enable more efficient network resource allocation by allowing the network to identify and prioritize traffic flows that require immediate attention, while the parameters are compactly encoded to minimize overhead.
3Reliability
If existing LCP procedures are used, then the system is easy to operate, but it cannot handle delay-sensitive traffic effectively
Solution Approach 1:
The LCP procedure incorporates feedback mechanisms through delay status reports that provide information about whether delay thresholds have been exceeded for various traffic flows. This feedback enables the system to automatically adjust prioritization decisions to handle delay-sensitive traffic effectively, while the feedback is generated and processed through standardized procedures that maintain operational simplicity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may allocate uplink resources to one or more logical channels based at least in part on a logical channel prioritization (LCP) procedure, wherein the LCP procedure is based at least in part on a logical channel priority parameter and at least one of a delay status report parameter or a protocol data unit set importance parameter. The UE may transmit a medium access control transport block using the uplink resources based at least in part on allocating the uplink resources to the one or more logical channels. Numerous other aspects are described.