On-Demand System Information Signaling with Dual CORESET Monitoring
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing the transmission of system information, particularly in 5G/NR systems, due to the need for periodic signaling that consumes energy without demand-based requirements.
Innovation Solution
Implementing a mechanism for on-demand system information transmission, where system information blocks like SIB0 and SIB1 are transmitted only when requested by the user equipment (UE), reducing unnecessary energy consumption by base stations and UEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If system information is transmitted periodically, then system information is reliably delivered to UEs, but energy consumption increases due to unnecessary signaling
Solution Approach 1:
The patent implements dynamic transmission mechanisms where system information is transmitted on-demand based on UE requests rather than fixed periodic schedules. The base station adjusts transmission timing and frequency according to actual UE needs, transforming static periodic transmission into dynamic demand-driven transmission to eliminate energy waste from unnecessary signaling.
Solution Approach 2:
The patent employs feedback mechanisms where UEs send requests for system information blocks (SIBs) to the base station, and the base station responds with scheduling information. This feedback loop ensures information is transmitted only when needed, balancing reliability of information delivery with energy efficiency by eliminating blind periodic transmissions.
2Use of energy by moving object
If system information is transmitted on-demand, then energy consumption is reduced, but transmission delay increases
Solution Approach 1:
The patent implements preliminary actions by having the base station prepare and configure multiple system information blocks in advance, and by establishing pre-configured transmission channels and scheduling frameworks. When a UE sends a request, the base station can quickly transmit the required SIBs without significant delay because the infrastructure is already in place and configured.
Solution Approach 2:
The patent uses dynamic scheduling mechanisms that can rapidly allocate transmission resources when a UE requests system information. The base station dynamically adjusts transmission timing and resource allocation to minimize delay while maintaining energy efficiency, allowing on-demand transmission to occur with minimal waiting time through flexible scheduling.
3Productivity
If multiple CORESETs are configured for monitoring different PDCCHs, then system information can be transmitted efficiently, but device complexity increases
Solution Approach 1:
The patent segments the control channel monitoring function by configuring separate CORESETs for different PDCCH types (e.g., first CORESET for initial PDCCH monitoring, second CORESET for scheduling PDCCH). This segmentation allows independent optimization of each control channel function, improving overall system information transmission efficiency while managing complexity through modular configuration.
Solution Approach 2:
The patent implements multi-functional CORESET configurations where the same CORESET structure can be used for multiple purposes (monitoring different PDCCHs, receiving different system information blocks). This universality reduces the need for entirely separate dedicated channels for each function, thereby improving efficiency without proportionally increasing complexity.
Data Source
AI summary
Methods and apparatuses for communication of system information. A method of a user equipment (UE) in a wireless communication system includes receiving a synchronization signals and physical broadcast channel (SS/PBCH) block including a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), determining, based on the SS/PBCH block, configurations for a first control resource set (CORESET) to monitor a first physical downlink control channel (PDCCH), and receiving the first PDCCH based on the first CORESET. The method further includes determining, based on the first PDCCH, configurations related to a request for a system information block, and configurations for a second CORESET to monitor a second PDCCH, transmitting the request for the system information block, receiving the second PDCCH based on the second CORESET, and receiving a physical downlink shared channel (PDSCH) scheduled by the second PDCCH, wherein the PDSCH includes the system information block.