PUSCH Resource Release Criteria for 2-Step Random Access
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Solution Overview
Problem
The existing 5G wireless communication systems lack defined criteria for releasing physical uplink shared channel (PUSCH) resources assigned for 2-step contention free random access, leading to inefficient resource management and network limitations.
Innovation Solution
A method and system for releasing PUSCH resources assigned for 2-step contention free random access in 5G wireless communication systems, based on predefined criteria such as successful completion of random access procedures or expiration of transmission limits, to ensure efficient resource reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUSCH resources are assigned for 2-step contention free random access, then random access success rate is improved, but resource management efficiency deteriorates due to lack of release criteria
Solution Approach 1:
The patent applies parameter changes by introducing specific conditions (parameter thresholds) that trigger resource release. When the random access procedure completes successfully or when a maximum transmission counter reaches its limit, the PUSCH resource allocation parameters are changed from 'allocated' to 'released', enabling efficient resource recycling while maintaining access reliability
Solution Approach 2:
The patent implements feedback mechanisms where the network monitors the status of random access procedures and provides feedback through counter values and completion status. This feedback loop enables the network to determine when to release PUSCH resources, balancing between maintaining resources for potential retransmissions and freeing them for other uses
2Reliability
If PUSCH resources are retained for potential retransmissions, then random access reliability is improved, but resource wastage increases
Solution Approach 1:
The patent applies the discarding and recovering principle by establishing clear criteria for when PUSCH resources should be discarded (released) versus retained. Resources are discarded when the random access procedure is successfully completed or when the maximum transmission counter is reached, and recovered (made available for reuse) for other purposes, thus eliminating resource wastage while maintaining necessary reliability
3Reliability
If maximum transmission counter is set high, then random access success rate is improved, but resource occupation time increases
Solution Approach 1:
The patent applies dynamics by making the resource occupation duration flexible rather than fixed. The maximum transmission counter provides a dynamic limit that can be adjusted based on network conditions and service requirements, allowing the system to adapt the resource occupation time to balance between achieving successful access and freeing resources promptly
Data Source
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AI summary
A communication method and a system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as a smart home, a smart building, a smart city, a smart car, a connected car, health care, digital education, a smart retail, security and safety services. The disclosure provides method and an apparatus for releasing physical uplink shared channel (PUSCH) resources assigned for random access procedure.