Mobile Station RRC Message Priority Management
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Solution Overview
Problem
In LTE networks, mobile stations face challenges in processing multiple RRC messages from different radio base stations during Inter-eNB CA, leading to potential delays in important configuration settings, which can result in unfavorable connectivity situations.
Innovation Solution
A mobile station is configured with a receiving unit, an RRC message processing unit, and a priority management unit that processes RRC messages based on predetermined priorities set for each radio base station, cell, or message, ensuring that higher priority messages are processed first, thereby avoiding delays in critical configuration settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile station processes multiple RRC messages from different radio base stations simultaneously, then the Inter-eNB CA functionality is achieved, but the processing delay increases and connectivity reliability deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-defining priority levels for different RRC messages and radio base stations before processing occurs. The mobile station stores priority information associated with each radio base station and message type in advance, allowing it to immediately apply the correct processing order when multiple messages arrive simultaneously, thus preventing connectivity delays without sacrificing Inter-eNB CA functionality
Solution Approach 2:
The patent segments the RRC message processing into distinct priority levels and queues. Instead of treating all RRC messages uniformly, the system divides them into multiple processing streams based on priority, allowing critical connectivity messages to be handled separately from less urgent configuration messages, thereby resolving the contradiction between handling multiple messages and maintaining reliability
2Productivity
If the mobile station processes multiple RRC messages in parallel, then the processing speed increases, but the processing accuracy deteriorates due to implementation complexity
Solution Approach 1:
The patent applies preliminary action by pre-defining priority levels for different RRC messages and radio base stations before processing occurs. The mobile station stores priority information associated with each radio base station and message type in advance, allowing it to immediately apply the correct processing order when multiple messages arrive simultaneously, thus preventing connectivity delays without sacrificing Inter-eNB CA functionality
Solution Approach 2:
The patent applies local quality by assigning different processing characteristics to different RRC messages based on their specific priority and type. Instead of applying a uniform processing method to all messages, the system tailors the processing approach locally to each message's requirements, ensuring that critical configuration settings receive appropriate attention while maintaining overall processing efficiency
3Adaptability or versatility
If the mobile station receives RRC messages from multiple radio base stations, then the network flexibility improves, but the device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining priority levels for different RRC messages and radio base stations before processing occurs. The mobile station stores priority information associated with each radio base station and message type in advance, allowing it to immediately apply the correct processing order when multiple messages arrive simultaneously, thus preventing connectivity delays without sacrificing Inter-eNB CA functionality
Solution Approach 2:
The patent applies parameter changes by introducing priority levels as a new parameter that characterizes RRC messages and radio base stations. This additional parameter allows the mobile station to differentiate between messages and apply appropriate processing rules, managing the complexity introduced by multiple base stations through a systematic parameter-based approach rather than ad-hoc processing
Data Source
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AI summary
A situation where the important configuration setting is delayed is avoided during execution of "Inter-eNB CA". A mobile station UE according to the present invention includes: a priority management unit 13 configured to manage a priority of each radio base station, each cell or each RRC message; and an RRC message processing unit 12 configured to, when RRC messages are received from a radio base station eNB#1 and a radio base station eNB#2, process the RRC messages based on the priorities.