PRACH Repetition Beam Configuration for 5G Coverage
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Solution Overview
Problem
The random access procedure in future radio communication systems, such as 5G and beyond, lacks a definite configuration for PRACH repetition, leading to uncertain communication throughput and coverage.
Innovation Solution
A terminal and base station configuration that includes a receiving section for PRACH configuration and a control section to determine resources for repetition accompanied by the same beam, enhancing coverage by optimizing PRACH resources and repetition patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PRACH repetition is implemented to improve coverage, then coverage is improved, but communication throughput may be reduced due to indefinite procedure
Solution Approach 1:
The patent applies parameter changes by configuring specific repetition numbers (e.g., 2, 4, or 8 repetitions) for PRACH transmissions based on coverage requirements. The terminal determines resources for repetition accompanied by the same beam, transforming the indefinite repetition procedure into a defined parameter-based approach that balances coverage improvement with throughput maintenance.
2Reliability
If PRACH repetition with same beam is determined, then coverage is improved, but device complexity increases due to configuration requirements
Solution Approach 1:
The base station performs preliminary action by providing advance configuration information about PRACH repetition to the terminal before the actual random access procedure. This includes pre-defining repetition numbers and resource allocations, which simplifies the terminal's processing during execution and reduces overall system complexity despite the enhanced coverage capability.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives a configuration related to repetition of a physical random access channel, and a control section that determines a plurality of resources for the repetition accompanied by a same beam. According to one aspect of the present disclosure, it is possible to improve coverage in a random access procedure.