Logical Channel Prioritization for Uplink Shared Channel Resources
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Solution Overview
Problem
Wireless communication systems face inefficiencies in assigning data from logical channels to multiple uplink shared channel resources, leading to suboptimal throughput, reliability, and resource utilization when receiving a multi-TB DCI, as existing techniques lack clear methods for prioritization and ordering.
Innovation Solution
Implementing logical channel prioritization (LCP) policies at user equipment (UE) to order and assign data from logical channels to uplink shared channel resources based on scheduling, TB size, modulation order, or presence of uplink control information, enabling efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data from logical channels is assigned to multiple uplink shared channel resources without a defined prioritization method, then the system maintains flexibility in resource allocation, but throughput and resource utilization become suboptimal
Solution Approach 1:
The patent applies parameter changes by introducing multiple ordering criteria (chronological order, TB size order, modulation order, uplink control information presence) to transform the data assignment process. Each criterion changes the parameter used for prioritization, allowing the system to optimize throughput under different channel conditions and traffic types without requiring a fundamentally complex new mechanism
Solution Approach 2:
The patent segments the data assignment process into distinct ordering criteria that can be independently selected and applied. By dividing the prioritization task into separate dimensions (time, size, modulation, control information), the system achieves optimal throughput through structured segmentation rather than through overall system complexity
2Productivity
If existing techniques are used for assigning data to multiple uplink grants, then the system maintains simplicity in operation, but resource utilization and reliability deteriorate
Solution Approach 1:
The patent introduces dynamic ordering criteria that can be adapted to different transmission scenarios. The system dynamically selects among chronological order, TB size order, modulation order, and uplink control information presence based on current channel conditions and traffic requirements, improving resource utilization while maintaining operational simplicity through adaptive rather than static rules
3Loss of time
If data assignment follows no specific ordering policy, then the system maintains ease of implementation, but latency and processing time increase
Solution Approach 1:
The patent applies preliminary action by establishing ordering policies in advance (chronological, TB size, modulation, uplink control information) that guide data assignment before transmission occurs. This pre-defined structure reduces processing time during actual data assignment while avoiding the need for complex real-time decision-making, effectively preparing the system ahead of time
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with a policy for ordering multiple uplink shared channel resources granted for transmission of multiple transport blocks (TBs). The UE may assign data from one or more logical channels to multiple uplink shared channel resources in an order specified by the configured policy. In some examples, the UE may assign data from logical channels to uplink shared channel resources in a chronological order in which the uplink shared channel resources are scheduled, in a transport block size order of transport blocks to be carried in the uplink shared channel resources, in a modulation size order of the modulation orders associated with the uplink shared channel resources, or based on which uplink shared channel resources include uplink control information.