Overlapping System Information Windows for LTE Message Acquisition
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Solution Overview
Problem
In LTE wireless communication systems, user equipment typically acquires only one system information message per window, leading to ambiguity and loss of information when multiple SI messages overlap, necessitating a method to acquire multiple messages efficiently without ambiguity.
Innovation Solution
The method involves overlapping system information windows by transmitting a scheduling configuration, calculating start frames, and determining overlaps to acquire multiple messages in a single window, ensuring all messages are processed without missing transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If user equipment acquires only one system information message per window, then the acquisition process is simple, but information loss and ambiguity occur when multiple SI messages overlap
Solution Approach 1:
The patent applies dynamics by making the SI window configuration flexible and adjustable. The network can dynamically configure the length and positioning of SI windows through SIB1 parameters, allowing the system to adapt to different scenarios. When multiple SI messages need to be transmitted, the windows can be configured to overlap or be adjacent, enabling the UE to acquire multiple messages without information loss while managing complexity through standardized procedures.
2Productivity
If multiple system information messages are transmitted in separate non-overlapping windows, then each message is acquired clearly, but the scheduling flexibility is reduced and transmission efficiency decreases
Solution Approach 1:
The patent merges multiple SI message transmissions into a coordinated window structure. By allowing SI windows to overlap or be adjacent, multiple SI messages can be transmitted in close temporal proximity, improving transmission efficiency. The merging is managed through standardized UE acquisition procedures that can handle overlapping windows, thus maintaining clarity while enhancing productivity.
Solution Approach 2:
The network can dynamically adjust the configuration of SI windows through SIB1 parameters, allowing flexible scheduling of multiple SI messages. This dynamic configuration enables the system to optimize transmission efficiency by placing messages in overlapping or adjacent windows while maintaining adaptability to different network conditions and message priorities.
3Loss of information
If system information windows are configured to overlap, then multiple messages can be acquired in a single window, but ambiguity may occur without proper identification mechanisms
Solution Approach 1:
The patent segments the system information transmission into distinct, identifiable messages within the window structure. Each SI message is clearly defined and can be independently identified by the UE even when windows overlap. This segmentation ensures that while multiple messages are acquired in a single window, each message remains distinct and unambiguous, maintaining acquisition accuracy.
Solution Approach 2:
The UE uses feedback mechanisms to verify successful acquisition of SI messages. By monitoring the content and structure of received messages within overlapping windows, the UE can confirm accurate reception and distinguish between different SI messages, ensuring reliability while benefiting from the information completeness of overlapping window acquisition.
Data Source
AI summary
The embodiments herein provide a method of acquiring a plurality of system information messages in a radio communication network. The method comprises the steps of overlapping a plurality of system information windows and acquiring the plurality of system information messages for which the system information window overlaps in the user equipment. The method of overlapping the system information windows comprises of transmitting system information scheduling configuration containing scheduling information list, calculating start sub-frame and start radio frame of the system information window for the system information messages from the scheduling information, determining occurrence of system information window overlap of the system information messages and acquiring a plurality of system information messages in the overlapped system information windows. The system information acquisition is performed until the plurality of system information messages in the overlapped system information widow is acquired.