Differentiated Random Access Parameter Sets for 5G Service Adaptability
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Solution Overview
Problem
The 5G communications system requires a new random access method that can meet the higher rate, lower latency, and ultra-reliability demands, as well as support for a larger scale of machine-type communication devices with lower costs, which existing methods fail to address effectively.
Innovation Solution
The proposed solution involves a communication method where a base station sends multiple random access parameter sets to terminals, allowing differentiated random access processes based on service types, network slices, or access groups, and allocates uplink resources and backoff indicators accordingly to meet various requirements in different scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single random access parameter set is used for all terminals, then the system complexity is low, but it cannot meet the differentiated requirements of different service types (URLLC vs eMBB) and network slices
Solution Approach 1:
The patent segments the random access parameters into multiple parameter sets, each corresponding to a specific service type or network slice. The base station transmits different random access parameter sets for different services (e.g., URLLC and eMBB), allowing terminals to select the appropriate parameter set based on their service requirements. This segmentation enables differentiated random access configurations without requiring a completely separate system for each service type.
Solution Approach 2:
The patent applies local quality by configuring specific random access parameters (such as preamble sequences, time-frequency resources, and power settings) differently for different service types and network slices. Each local configuration is optimized for its specific service requirements, allowing URLLC to have low-latency parameters while eMBB has high-throughput parameters, thereby achieving service-specific optimization within a unified system.
2Reliability
If multiple random access parameter sets are transmitted to meet differentiated service requirements, then service adaptability improves, but the signaling overhead and system complexity increase
Solution Approach 1:
The patent merges the transmission of multiple random access parameter sets into a unified signaling structure. Instead of transmitting separate configurations for each service type independently, the base station combines multiple parameter sets into a single broadcast message or dedicated signaling format, allowing terminals to efficiently receive and select from multiple configurations without proportionally increasing signaling overhead.
Solution Approach 2:
The patent creates a universal random access parameter configuration framework that serves multiple service types and network slices through a single system design. The same physical channels and signaling mechanisms are used to convey different parameter sets for different services, making the system multi-functional without requiring separate dedicated resources for each service type, thereby reducing overall signaling overhead.
3Productivity
If random access parameters are customized for different network slices and service types, then service-specific performance improves, but the configuration and management complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple random access parameter sets in advance, each optimized for specific service types or network slices. These parameter sets are prepared and made available to terminals before actual random access occurs, allowing terminals to quickly select the appropriate configuration based on their service requirements without real-time computation or complex decision-making during the random access process.
Data Source
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AI summary
This application discloses a communication method and an apparatus. In a solution of this application, a base station sends, by using dedicated signaling, at least one random access parameter set to a terminal in a connected mode or an inactive mode. The base station receives a random access request of the terminal in a connected mode or an inactive mode. One of the at least one random access parameter set is used in the random access request. In this application, differentiated random access processes may be performed in different scenarios.