Terminal Type Identification via Message A PUSCH in 5G Random Access
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Solution Overview
Problem
In 5G systems, identifying the type of terminal during the random access procedure is challenging, which affects resource utilization, as existing methods lack efficient mechanisms to distinguish between different types of terminals, such as RedCap and ordinary UE, leading to suboptimal scheduling and potential capacity reduction.
Innovation Solution
The method involves using a physical uplink shared channel (PUSCH) to transmit terminal type indication information, allowing network devices to differentiate between terminals based on distinct resource allocations and demodulation reference signals, enabling targeted scheduling without dividing resource sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminal type identification is not implemented during random access, then resource sets can be shared among all terminals, but the network device cannot perform targeted scheduling and resource utilization rate decreases
Solution Approach 1:
The terminal transmits terminal type indication information in Message A PUSCH during the random access procedure, allowing the network device to identify the terminal type in advance before scheduling resources. This preliminary identification enables the network device to perform targeted scheduling for different terminal types (RedCap and non-RedCap), improving resource utilization without requiring complex post-access differentiation mechanisms
Solution Approach 2:
The patent introduces terminal type indication information as an intermediary element carried in Message A PUSCH. This indication information acts as a mediator that conveys terminal type characteristics to the network device, enabling differentiated scheduling decisions without requiring direct complex interaction or additional signaling exchanges between the network device and terminals of different types
2Productivity
If resource sets are divided for different terminal types, then targeted scheduling can be performed, but system capacity is reduced due to resource segmentation
Solution Approach 1:
The patent applies local quality by configuring different PUSCH parameters (such as transform enablement, beta values for UCI multiplication, and other transmission characteristics) specifically for RedCap terminals versus non-RedCap terminals. This allows the network device to perform targeted scheduling with differentiated parameter sets for different terminal types while maintaining a unified resource pool, thus achieving localized optimization without global resource segmentation
Solution Approach 2:
The Message A PUSCH serves multiple functions simultaneously: it carries uplink data, transmits terminal type indication information, and enables differentiated scheduling for both RedCap and non-RedCap terminals within the same resource pool. This multi-functionality allows the system to maintain high capacity while achieving targeted scheduling through parameter differentiation rather than resource division
3Productivity
If terminal type identification is delayed, then resource allocation can be simplified, but scheduling efficiency and communication performance deteriorate
Solution Approach 1:
The patent merges the terminal type indication information transmission with the existing Message A PUSCH transmission in the random access procedure. By combining these functions into a single transmission step, the patent achieves terminal type identification without adding separate signaling procedures or increasing random access complexity, thereby maintaining scheduling efficiency while avoiding procedural overhead
Data Source
AI summary
The present application provides an information processing method, an access method, an apparatus and a storage medium. The method includes: receiving a physical uplink shared channel of a message A transmitted by a terminal; and determining a type of the terminal according to the physical uplink shared channel of the message A, to realize the identification of the type of the terminal in a random access procedure.