System Information Request Determination in Wireless Networks
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Solution Overview
Problem
In wireless communication networks, multiple user equipment (UEs) sending simultaneous requests for system information lead to excessive resource usage and interference, as existing methods do not efficiently manage on-demand system information acquisition, resulting in unnecessary power consumption and resource allocation inefficiencies.
Innovation Solution
A method and apparatus for determining requests for system information, where a UE checks if the information is scheduled for broadcast or on-demand, and if not, it determines whether other UEs have requested the same information, allowing it to transmit a request only if necessary, using specific message types (e.g., PRACH preamble) and persistence checks to optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple UEs send simultaneous requests for system information, then each UE can acquire the requested information, but resource usage increases and interference occurs
Solution Approach 1:
The UE performs a persistence check before transmitting an SI request to determine whether other UEs have already requested the same system information. This preliminary action prevents redundant requests and reduces unnecessary power consumption while ensuring reliable information acquisition when needed.
Solution Approach 2:
The system uses feedback mechanisms where UEs monitor for indications of system information requests from other UEs. This feedback allows UEs to adjust their transmission decisions, avoiding simultaneous requests that cause interference and reducing overall power consumption in the network.
2Reliability
If multiple UEs send simultaneous requests for system information, then each UE can acquire the requested information, but resource usage increases and interference occurs
Solution Approach 1:
The UE performs a persistence check before transmitting an SI request to determine whether other UEs have already requested the same system information. This preliminary action prevents redundant requests and reduces unnecessary power consumption while ensuring reliable information acquisition when needed.
Solution Approach 2:
The system uses feedback mechanisms where UEs monitor for indications of system information requests from other UEs. This feedback allows UEs to adjust their transmission decisions, avoiding simultaneous requests that cause interference and reducing overall power consumption in the network.
3Ease of operation
If a UE transmits SI request whenever needed, then the UE can obtain required system information, but unnecessary transmissions increase resource allocation inefficiencies
Solution Approach 1:
The UE performs a persistence check before transmitting an SI request to determine whether other UEs have already requested the same system information. This preliminary action prevents redundant requests and reduces unnecessary power consumption while ensuring reliable information acquisition when needed.
Solution Approach 2:
The system uses feedback mechanisms where UEs monitor for indications of system information requests from other UEs. This feedback allows UEs to adjust their transmission decisions, avoiding simultaneous requests that cause interference and reducing overall power consumption in the network.
Data Source
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AI summary
Apparatuses, methods, and systems are disclosed for determining a request for system information. One apparatus (300) includes a processor (302) that: determines (702) whether system information used by the apparatus is scheduled to be transmitted; and in response to the system information not being scheduled to be transmitted, determines (704) whether the system information is requested by a second apparatus.