Grouped RRC Message Partial Failure Handling
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Solution Overview
Problem
Current wireless communication systems lack a method to effectively handle partial failures or partial completions of grouped Radio Resource Control (RRC) message procedures, leading to issues in determining the success or failure of combined commands, such as radio connection changes, security setups, and measurement controls.
Innovation Solution
A method and apparatus that allow a wireless transmit/receive unit (WTRU) to monitor the status of each procedure within a grouped RRC message and generate a response indicating whether the message was successfully completed, partially completed, or failed, including specific information on which procedures succeeded or failed, enabling the Node B to handle partial failures without declaring all procedures as failed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If RRC messages are grouped together to provide similar functionality, then message specification becomes more concise, but it becomes difficult to determine success or failure of individual procedures within the grouped messages
Solution Approach 1:
The patent segments the grouped RRC message procedures into individual procedure status indicators. Each procedure within the grouped message is assigned a separate status indicator that can be independently reported, allowing the system to maintain concise message specifications while preserving detailed procedure status information for failure analysis and selective reconfiguration.
2Reliability
If a separate failure message is used for each procedure, then procedure failure can be accurately reported, but message overhead and processing complexity increase
Solution Approach 1:
The patent merges multiple procedure status indicators into a single RRC message response. Instead of sending separate failure messages for each procedure, the system combines all procedure statuses into one consolidated response message, reducing message overhead and processing complexity while maintaining accurate failure reporting for each individual procedure.
3Reliability
If all procedures in a grouped message are declared failed when any single procedure fails, then system reliability is maintained, but unnecessary reconfigurations occur reducing efficiency
Solution Approach 1:
The patent applies local quality by allowing different quality outcomes for different procedures within the same grouped message. Each procedure can be independently evaluated as successful or failed, enabling selective reconfiguration of only the failed procedures rather than forcing complete reconfiguration of all procedures, thus improving reconfiguration efficiency while maintaining system reliability.
Data Source
AI summary
A method and apparatus for radio resource control (RRC) messaging. A method in a wireless communication system includes receiving, at a wireless transmit/receive unit (WTRU) an RRC change command including a plurality of commands from a Node B and receiving, at the Node B, an RRC change response from the WTRU, wherein the RRC change command includes a command for performing a measurement gap configuration procedure and a command for performing a measurement gap activation procedure.