PDSCH Resource Allocation for 5G System Information Block Coverage
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Solution Overview
Problem
Current 5G communication systems face challenges in efficiently transmitting and receiving system information blocks, particularly in enhancing coverage for various services like mMTC and URLLC, due to limited time resources and restrictive relationships between synchronization signal blocks and control channels.
Innovation Solution
The method involves dynamically and flexibly allocating resources for the physical downlink shared channel (PDSCH) to transmit system information blocks, allowing for increased time resources and repeated transmissions to enhance coverage, by configuring offsets between CORESET and PDSCH through L1 signaling or MIB, and using agreed or preset values for optimal beam matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the relationship between synchronization signal blocks and control channels is restricted, then the system structure is simplified, but the coverage for system information block transmission is limited
Solution Approach 1:
The patent applies dynamics by making the offset between CORESET and PDSCH configurable through L1 signaling rather than fixed. This allows the system to adapt the time relationship between control and data channels dynamically, enabling flexible resource allocation that enhances coverage for system information blocks while maintaining implementation simplicity through standardized signaling mechanisms.
2Reliability
If time resources for system information block transmission are limited, then the scheduling is efficient, but the coverage and reliability are insufficient
Solution Approach 1:
The patent implements periodic action by allowing repeated transmissions of system information blocks through the PDSCH. The terminal can receive multiple copies of the same system information block at different time instances, which enhances decoding reliability and coverage. This periodic repetition mechanism balances time efficiency with reliability by distributing transmissions across multiple time slots rather than requiring continuous time allocation.
3Adaptability or versatility
If the PDSCH transmission is scheduled with fixed offset from CORESET, then the resource allocation is simple, but the adaptability for different services is reduced
Solution Approach 1:
The patent applies parameter changes by making the offset between CORESET and PDSCH a variable parameter that can be configured through L1 signaling. Instead of a fixed offset, the system allows dynamic adjustment of this time parameter to optimize resource allocation for different services and coverage scenarios. This configurability enhances adaptability while keeping the allocation mechanism simple by using standard signaling procedures.
Data Source
AI summary
The present disclosure relates to: a communication technique for merging IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems; and a system therefor. The present disclosure can be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) on the basis of 5G communication technology and IoT-related technologies. The present disclosure relates to a method for transmitting and receiving a data channel.