MsgA PUSCH Resource Overhead for Adaptive Random Access TBS
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Solution Overview
Problem
Existing wireless communication networks face challenges in efficiently determining the transport block size (TBS) for msgA PUSCH transmission during random access procedures, particularly in different connection states and RA types, leading to inefficiencies in resource utilization.
Innovation Solution
A method and apparatus for determining flexible resource overhead configuration for msgA PUSCH transmission based on connection states and RA types, using common or dedicated RRC signaling to adaptively set the TBS, enabling efficient resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed resource overhead configuration is used for msgA PUSCH transmission, then the system complexity is reduced, but the resource utilization efficiency deteriorates across different connection states and RA types
Solution Approach 1:
The patent implements dynamic resource overhead configuration for msgA PUSCH transmission by introducing multiple overhead values (first, second, and third overhead configurations) that are selectively applied based on connection states and RA types. The network device determines which overhead configuration to use according to the UE's specific state, transforming the static configuration into a dynamic adaptation mechanism that optimizes resource utilization for different scenarios without requiring complex per-scenario configurations.
Solution Approach 2:
The patent changes the resource overhead parameter values based on connection states and RA types. By defining different overhead configurations (first overhead for idle/inactive states, second overhead for connected state with CFRA, third overhead for connected state with CBRA), the system adapts the resource allocation parameters to match the specific operational context, thereby improving resource utilization efficiency without significantly increasing system complexity.
2Productivity
If adaptive TBS determination is implemented for different connection states and RA types, then resource utilization efficiency is improved, but the determination complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple resource overhead values (first, second, and third overhead configurations) that correspond to different connection states and RA types. Instead of calculating the optimal overhead dynamically during TBS determination, the system prepares the overhead configurations in advance and simply selects the appropriate one based on the current state, thereby achieving adaptive resource allocation without significantly increasing the computational complexity of TBS determination.
3Adaptability or versatility
If flexible resource overhead configuration is used for msgA PUSCH, then the adaptability to different connection states and RA types is improved, but the signaling overhead increases
Solution Approach 1:
The patent implements a universal resource overhead configuration mechanism that serves multiple connection states and RA types through a single framework. By defining a set of overhead configurations that can be applied across different scenarios (idle/inactive states, connected state with CFRA, connected state with CBRA), the system achieves high adaptability without requiring separate configuration mechanisms for each state, thereby minimizing signaling overhead while maintaining versatility.
Data Source
AI summary
Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises determining a resource overhead for transmission of an uplink shared channel of a message. The message includes data on the uplink shared channel and a random access preamble. The method further comprises transmitting the data on the uplink shared channel of the message to a network node, based at least in part on the determined resource overhead. According to various embodiments of the present disclosure, the resource overhead for message A physical uplink shared channel transmission may be configured flexibly, and the transport block size for message A physical uplink shared channel transmission can be determined adaptively.