5G SIB Transmission via MIB and SSB Indicators
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Solution Overview
Problem
Current 5G communication systems face challenges in efficiently transmitting and receiving system information blocks, particularly for machine type communication (MTC) services, which require flexible scheduling and resource allocation to support massive terminal access and low-latency communication.
Innovation Solution
A method and apparatus that involve obtaining a synchronization signal block (SSB) and a master information block (MIB) to identify and transmit system information blocks (SIB) related to MTC, using information from the MIB or SSB to determine resource regions and scheduling details for efficient transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If system information blocks are transmitted using conventional methods in 5G systems, then various services (eMBB, mMTC, URLLC) can be supported, but terminal coverage is limited and operational complexity increases
Solution Approach 1:
The system information is segmented into different types (minisystem information, normal system information) and transmitted through different channels (physical broadcast channel, downlink shared channel). This segmentation allows efficient organization and transmission of service-specific information, reducing operational complexity while maintaining versatility in supporting multiple services including eMBB, mMTC, and URLLC
Solution Approach 2:
The patent introduces a new dimension in system information transmission by using indicator fields in the physical broadcast channel to point to specific downlink shared channel resources. This dimensional change from direct transmission to indicator-based indirect transmission reduces complexity and improves efficiency in transmitting system information for various services
2Reliability
If system information blocks are transmitted with detailed resource allocation for each service, then service quality improves, but transmission overhead and processing complexity increase
Solution Approach 1:
The downlink shared channel serves multiple functions by carrying both minisystem information and normal system information for different services (mMTC, eMBB, URLLC). A single channel structure with service-specific indicator fields reduces transmission overhead while maintaining the ability to provide quality service information for multiple service types simultaneously
Solution Approach 2:
Instead of transmitting complete system information for each service separately, the patent uses indicator fields that copy or reference the location of detailed system information. This copying approach significantly reduces transmission overhead while ensuring terminals can access the complete service-specific system information when needed, maintaining service quality without excessive overhead
Data Source
AI summary
The present disclosure relates to a communication technique for combining, with IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. According to the present disclosure, in a method for obtaining a system information block (SIB) of a terminal in a wireless communication system, a base station may obtain a transmitted synchronization signal block (SSB), obtain a master information block (SIB) from the SSB, obtain a master information block (MIB), and obtain an SIB related to machine type communication (MTC) on the basis of information obtained from at least one of the MIB or SSB related resource.