Wireless Device Reordering Delay Reporting for Split Bearer Optimization
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Solution Overview
Problem
Current wireless communication systems face challenges in effectively reporting and measuring processing delay-related information, particularly in the context of PDCP reordering, which affects communication performance and can lead to improper traffic split configurations and channel state changes.
Innovation Solution
A method and apparatus for a wireless device to receive configuration settings, measure reordering delay, calculate reordering statistics, and send Radio Resource Control (RRC) messages with these statistics based on predefined conditions, enabling the network to adjust bearer configurations and assess split bearer usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PDCP reordering is performed to ensure in-order delivery of packets, then delivery reliability is improved, but communication delay increases
Solution Approach 1:
The patent implements a feedback mechanism where the wireless device measures reordering delay, calculates reordering statistics (including reordering intensity, frequency, and delay metrics), and reports these statistics to the network. The network uses this feedback to dynamically adjust reordering configuration parameters, thereby optimizing the balance between delivery reliability and communication delay based on actual channel conditions.
Solution Approach 2:
The patent introduces dynamic adjustment of reordering parameters based on measured statistics. Instead of using fixed reordering delay values, the system dynamically modifies reordering configuration according to calculated metrics such as reordering intensity (ratio of reordering time to total time) and reordering frequency, allowing the system to adapt to changing channel conditions and traffic patterns.
2Adaptability or versatility
If reordering statistics measurement and reporting is implemented, then network optimization capability is improved, but device complexity increases
Solution Approach 1:
The patent segments the reordering statistics measurement and reporting process into distinct, manageable components: (1) reordering delay measurement, (2) reordering statistics calculation (intensity, frequency, delay metrics), and (3) conditional reporting. This segmentation simplifies implementation by breaking down the complex task into modular functions that can be independently managed and optimized.
Solution Approach 2:
The patent changes the approach from complex continuous monitoring to parameter-based reporting. Instead of reporting all raw measurement data, the system calculates key parameters (reordering intensity, frequency, and delay statistics) and reports only when predefined conditions are met. This parameter transformation reduces the complexity of data handling while preserving essential optimization information.
3Productivity
If split bearer configuration is used to balance traffic load, then system capacity is improved, but packet transmission delay becomes unstable
Solution Approach 1:
The patent implements feedback reporting of reordering statistics to the network when predefined conditions are satisfied. This feedback mechanism provides the network with information about delay stability issues in split bearer configurations, enabling the network to adjust traffic split ratios or reordering parameters to improve delay stability while maintaining system capacity.
Solution Approach 2:
The patent replaces manual or static configuration of split bearer parameters with an automated system based on measured reordering statistics. The wireless device automatically measures, calculates, and reports statistics that trigger configuration adjustments, substituting complex manual optimization with an automated measurement-reporting-adjustment mechanism.
Data Source
AI summary
The present disclosure relates to method and apparatus for reporting processing delay related information in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving a configuration on measurements and reporting of reordering statistics; measuring a reordering delay (RD); calculating the reordering statistics; and sending a radio resource control (RRC) message including the reordering statistics based on a pre-defined condition.