PDCP Duplication RLC Entity Selection
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently selecting and managing radio link control (RLC) entities for transmitting packet data convergence protocol (PDCP) control protocol data units (PDUs), particularly in 5G networks.
Innovation Solution
A method is disclosed for selecting RLC entities by accessing data representing an index of RLC entities and their activation state information, allowing for the selection of a subset of activated RLC entities based on index position and assistance information for PDCP Control PDU transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple RLC entities are configured for PDCP duplication, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic activation and deactivation of RLC entities based on transmission needs. The network can activate specific RLC entities from a configured set when PDCP duplication is required, and deactivate them when not needed, transforming a static configuration into a dynamic resource allocation mechanism that balances reliability and complexity.
Solution Approach 2:
Different RLC entities can be selectively activated based on local transmission requirements and conditions. Each RLC entity can be independently controlled for activation/deactivation, allowing fine-grained management of duplication resources rather than treating all RLC entities uniformly, thus reducing overall system complexity.
2Productivity
If RLC entities are dynamically activated and deactivated, then resource efficiency is improved, but control complexity increases
Solution Approach 1:
RLC entities are pre-configured with activation states and identification information before actual transmission occurs. This preliminary setup allows the network to quickly activate or deactivate specific entities without complex real-time configuration, improving resource efficiency while limiting control complexity to pre-established parameters.
Solution Approach 2:
The network monitors transmission conditions and uses feedback information to determine which RLC entities should be activated or deactivated. This feedback-driven approach ensures optimal resource utilization by adjusting RLC entity states based on actual network conditions, while the automated feedback mechanism reduces manual control complexity.
Data Source
AI summary
Methods, systems, apparatus, and computer programs, for selecting radio link control (RLC) entities to transmit packet data convergence protocol (PDCP) control protocol data unit (PDU). In one aspect, the method includes actions of accessing, by a device in a wireless communication system, data representing an index of RLC entities of a data radio bearer (DRB)/PDCP entity and RLC activation state information, the activation state information indicating whether one or more RLC entities of the DRB/PDCP entity in the index of RLC entities is activated or deactivated, selecting, by the device in the wireless communication system, a subset of the RLC entities of the DRB/PDCP entity based on an index position in the index and the activation state information for each of the RLC entities, and using the selected subset of RLC entities of the DRB/PDCP entity to transmit the PDCP Control PDU.