Cellular Random Access Response Formatting for Radio Resource Efficiency
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Solution Overview
Problem
Existing cellular systems face inefficiencies in operational efficiency and resource utilization in transmitting Random Access (RA) response messages, particularly in managing radio resources and terminal discrimination.
Innovation Solution
A method and apparatus for RA in cellular systems that involve receiving and processing RA preambles, generating RA response messages with byte alignment and overload state information, and transmitting control information to optimize resource use and terminal identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If RA response information is transmitted using minimal radio resources, then radio resource utilization is improved, but the format complexity for terminal processing increases
Solution Approach 1:
The RA response message is segmented into distinct fields including RA preamble index, uplink resource information, and timing alignment information. Each field is independently structured to serve specific functions, allowing efficient packing into minimal radio resources while maintaining clear terminal processing through defined field boundaries and formats.
2Productivity
If RA response information contains detailed terminal-specific data, then terminal operational efficiency is improved, but the message size increases consuming more radio resources
Solution Approach 1:
The RA response message structure is designed to serve multiple functions within a compact format. The same message simultaneously provides terminal identification (RA preamble index), resource allocation (uplink resource information), and timing synchronization (timing alignment information), eliminating the need for separate messages and reducing overall radio resource consumption while maintaining comprehensive terminal support.
Data Source
AI summary
Disclosed is a method and apparatus for RA in a cellular system. The RA in the cellular system includes receiving an RA preamble from a terminal for RA, transmitting, to the terminal, an RA response message including a sequence of the received RA preamble and uplink resource information of the terminal and overload state information with respect to the RA, receiving control information generated based on the RA response message from the terminal through the uplink resource information, and transmitting control response information with respect to the received control information.