System Information Transmission Resource Configuration for MTC
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Solution Overview
Problem
Machine Type Communication (MTC) user equipment requires efficient configuration of transmission resources for system information, particularly in scenarios where extended coverage is needed, as existing methods may lead to insufficient PDSCH transmission resources for Dedicated Traffic Channel transmission.
Innovation Solution
Configuring a system bandwidth with two or more physical resource blocks to define subbands, allowing at least one remaining physical resource block to be located in the center, enabling efficient resource allocation and scheduling for transmitting system information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information is repeatedly transmitted in most downlink subframes for MTC user equipment with extended coverage, then system information transmission reliability is improved, but PDSCH transmission resource for DTCH transmission becomes insufficient
Solution Approach 1:
The patent segments the system information transmission by dividing the system bandwidth into multiple subbands (first subband and second subband). System information is transmitted in the first subband during first subframes and in the second subband during second subframes. This segmentation allows the base station to transmit system information reliably across multiple subframes while distributing the transmission load across different frequency resources, thereby preventing complete depletion of PDSCH transmission resources for DTCH.
Solution Approach 2:
The patent introduces a frequency domain dimension by utilizing multiple subbands within the system bandwidth. Instead of concentrating all system information transmissions in a single subband, the method spreads transmissions across multiple subbands (first subband and second subband) with different resource block allocations. This dimensional expansion allows reliable system information delivery while preserving PDSCH resources for other purposes.
2Quantity of substance
If system information is transmitted using intermittent repetitive transmission method in predetermined subframe or transmission period, then PDSCH transmission resource is sufficient, but system information transmission reliability may be compromised
Solution Approach 1:
The patent segments system information transmission across multiple subbands and subframes. The first subband transmits system information in first subframes while the second subband transmits system information in second subframes. This segmentation ensures that system information is transmitted repeatedly across multiple time-frequency resources, maintaining reliability while preserving PDSCH resources through efficient resource utilization.
Solution Approach 2:
The patent applies different transmission strategies to different subbands. The first subband and second subband have different resource block configurations and transmission timing. This local differentiation allows optimized transmission where each subband can serve specific coverage needs, ensuring reliable system information delivery to MTC user equipment with extended coverage requirements while managing PDSCH resource allocation efficiently.
Data Source
AI summary
Disclosed are a method and an apparatus for configuring a system information transmission resource for an MTC terminal. The method may include configuring a system bandwidth including two or more physical resource blocks with one or more subbands defined by two or more physical resource blocks to enable at least one remaining physical resource block to be located in a center of the system bandwidth and transmitting the system information to a predetermined user equipment (UE) using the subband.