Terminal Device Logical Channel Multiplexing for 5G Resource Utilization
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Solution Overview
Problem
In 5G New Radio (NR) mobile communication technology, the configuration/restriction of mapping logical channels to resources ensures ultra-reliable low-latency services, but leaves unused resources unutilized when specific resources are used, and inefficiently handles situations where the configuration/restriction is not configured.
Innovation Solution
A wireless communication method where a terminal device determines available resources and performs media access control (MAC) physical data unit (PDU) packaging or information multiplexing on configured or dynamic grant resources, even when the correspondence between logical channels and resources is not configured, by prioritizing logical channels based on attributes like subcarrier spacing, maximum PUSCH duration, and allowed CG type 1 resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If configuration/restriction of mapping logical channels to resources is applied, then reliability of ultra-reliable low-latency services is improved, but resource utilization rate deteriorates due to unused resources
Solution Approach 1:
The patent applies partial action by allowing logical channels to be mapped to resources beyond their strict configuration restrictions when resources are available. The terminal device determines whether to perform MAC PDU packaging or information multiplexing based on resource availability and configured conditions, enabling selective utilization of resources without compromising the reliability of configured services.
2Adaptability or versatility
If configuration/restriction of mapping logical channels to resources is not configured, then resource utilization flexibility is improved, but transmission reliability deteriorates
Solution Approach 1:
The patent implements dynamics by making the resource mapping behavior adaptive rather than static. The terminal device dynamically determines whether to perform MAC PDU packaging or information multiplexing based on real-time resource availability and configured conditions, allowing the system to flexibly adapt between strict mapping and flexible resource utilization depending on the configured scenario.
3Reliability
If terminal device ignores unavailable resources, then transmission reliability is improved, but resource utilization rate deteriorates
Solution Approach 1:
The patent applies feedback by implementing a decision mechanism where the terminal device evaluates resource availability and configured conditions to determine whether to perform MAC PDU packaging or information multiplexing. This feedback-based approach ensures that resources are utilized only when appropriate conditions are met, maintaining reliability while improving overall resource utilization.
Data Source
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AI summary
Provided in the embodiments of the present application are a wireless communication method and a terminal device, which can use resources as much as possible to transmit more valid data, thus increasing the utilization rate of resources. The wireless communication method comprises: a terminal device determines at least one logical channel that can be transmitted on available first resources; the terminal device multiplexes to the first resources data to be sent in the at least one logical channel; and when a remaining resource is present among the first resources, the terminal device sends first information on the remaining resource.