PDCP Entity Retention for Inactive Multicast Reception
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile communication systems, when a terminal switches from a connected state to an inactive state, the packet data convergence protocol (PDCP) entity is suspended or released, preventing the reception of multicast services.
Innovation Solution
The terminal retains the PDCP entity for receiving inactive multicast services by determining to do so based on configuration or indication information, ensuring continued service reception and communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PDCP entity is suspended or released when switching from connected state to inactive state, then device complexity is reduced and energy consumption is lowered, but the ability to receive multicast service is lost
Solution Approach 1:
The patent applies dynamics by making the PDCP entity state configurable rather than fixed. The network device can dynamically control whether the terminal suspends or releases the PDCP entity through indication information, allowing the system to adapt between connectivity and energy saving modes based on service requirements
Solution Approach 2:
The patent changes the state parameter of the PDCP entity from a fixed suspended/released state to a configurable state. By introducing indication information that modifies the PDCP entity's operational status, the system enables multicast service reception in inactive state while maintaining the ability to suspend or release based on network conditions
2Duration of action of stationary object
If the PDCP entity is retained for inactive multicast service reception, then service continuity is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent implements periodic action by allowing the terminal to selectively retain or suspend the PDCP entity based on periodic network indications. The network device sends indication information at appropriate intervals to control PDCP entity retention, enabling energy-efficient operation while maintaining service continuity when needed
Solution Approach 2:
The terminal autonomously decides whether to retain or suspend the PDCP entity based on received indication information from the network. This self-service mechanism allows the terminal to manage its own PDCP entity state without continuous network control, reducing energy consumption while maintaining service capability
Data Source
AI summary
A packet data convergence protocol (PDCP) entity processing method, performed by a terminal, includes: in a case of receiving a service which is not an inactive multicast service, suspending a PDCP entity.