RRC Message Prioritization in RLC Queue for 3GPP Compliance

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Solution Overview

Problem

Wireless communication networks face network timeouts due to delayed transmission of Radio Resource Control (RRC) signaling messages, leading to failed signaling procedures as they do not meet the time frames set by 3GPP RRC standards, which affects call success and sustainability rates.

Innovation Solution

A method and apparatus for prioritizing RRC signaling messages in a radio link control (RLC) queue based on message type, ensuring timely delivery by reordering them according to a prioritization schedule, thereby prioritizing certain message types over others to meet the 3GPP RRC standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If RRC signaling messages are transmitted in the order they are received (FIFO queue), then the transmission process is simple and straightforward, but the transmission time for critical messages may exceed the time frame limits set by 3GPP RRC standards, causing network timeouts

Engineering Contradiction:
ImproveRRC signaling procedure reliabilityVSAvoidTransmission time for RRC messages
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-establishing a prioritization schedule that classifies RRC messages into different categories (e.g., connection establishment messages, measurement messages, other signaling messages) before transmission occurs. This pre-defined hierarchy ensures that critical messages are automatically transmitted first without requiring real-time analysis or complex decision-making during the transmission process, thus meeting time frame requirements while maintaining simple implementation.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If RRC messages are prioritized based on message type, then the transmission time is reduced and reliability is improved, but the device complexity increases due to the need for message classification and reordering mechanisms

Engineering Contradiction:
ImproveRRC message transmission efficiencyVSAvoidMessage processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent reduces device complexity by pre-defining the prioritization schedule and message classification criteria before the transmission process begins. The device only needs to implement the reordering mechanism based on this pre-established schedule, rather than implementing complex real-time analysis algorithms. This approach maintains high transmission efficiency while keeping the implementation relatively simple.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies parameter changes by modifying the transmission parameter from simple FIFO ordering to priority-based ordering. The device changes the queue management parameter to reflect the prioritization schedule, which allows different message types to be transmitted in different orders based on their importance. This parameter change enables efficient transmission without requiring complex processing logic, as the prioritization rules are embedded in the queue management mechanism itself.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If all RRC messages are treated equally without prioritization, then the implementation is simple and straightforward, but critical signaling procedures may fail to meet the time frame requirements set by 3GPP RRC standards

Engineering Contradiction:
ImproveCall success rateVSAvoidQueue management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent ensures reliable call establishment by pre-establishing a prioritization schedule that classifies RRC messages into different categories (connection establishment messages, measurement messages, other signaling messages) before transmission occurs. This pre-defined hierarchy ensures that critical messages are automatically transmitted first without requiring real-time analysis or complex decision-making during the transmission process, thus meeting time frame requirements while maintaining simple implementation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS8977279B2Apparatus and method of prioritizing RRC signaling messages
Publication Date: 2015.03.10 QUALCOMM INC
  • US8977279B2 patent drawing
  • US8977279B2 patent drawing
  • US8977279B2 patent drawing

AI summary

Apparatus and methods of communicating in a communication network include the actions of and components for receiving one or more radio resource control (RRC) messages in a radio link control (RLC) queue, determining a RRC message type of the one or more RRC messages located in the RLC queue, prioritizing the one or more RRC messages located in the RLC queue according to the corresponding RRC message type, and transmitting the prioritized one or more of RRC messages in order of priority.