Terminal Access Stratum Parameter Configuration for Wireless Reliability
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Solution Overview
Problem
In the Internet of Vehicles system, changes in Access Stratum parameters due to varying cellular network coverage and device states lead to data transmission errors, as existing technologies fail to update parameters in real time, causing inconsistencies between sender and receiver devices.
Innovation Solution
A wireless communication method where a terminal device sends first indication information to trigger the configuration of Access Stratum parameters, such as PDCP reconstruction, RLC reconstruction, MAC resetting, or full configuration processes, to ensure consistent parameter settings between sender and receiver devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Access Stratum parameters are updated in real-time to maintain consistency between sender and receiver devices, then data transmission reliability is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring Access Stratum parameters in the terminal device before actual data transmission occurs. When the device enters different states (RRC connected, RRC inactive, RRC idle) or scenarios (network coverage, out of coverage), the parameters are proactively updated and stored, so that when transmission is needed, the correct parameters are already in place, eliminating the need for complex real-time updates during active transmission.
Solution Approach 2:
The patent implements feedback mechanisms where the terminal device monitors its own state changes (between RRC states and coverage scenarios) and automatically triggers parameter updates based on these state feedbacks. The network side also provides feedback through configuration information that the terminal uses to adjust its Access Stratum parameters, ensuring consistency without requiring complex bidirectional real-time negotiation.
2Manufacturing precision
If multiple configuration processes (PDCP reconstruction, RLC reconstruction, MAC resetting, full configuration) are implemented to ensure parameter consistency, then transmission parameter accuracy is improved, but processing time and system overhead increase
Solution Approach 1:
The patent applies dynamics by making the parameter configuration process adaptive and state-dependent. Instead of always performing full configuration processes, the system dynamically selects the appropriate configuration level (PDCP reconstruction, RLC reconstruction, MAC resetting, or full configuration) based on the current state transition. For example, when transitioning from RRC connected to RRC inactive, only necessary parameters are updated, avoiding unnecessary full reconfigurations and reducing processing time while maintaining accuracy.
3Speed
If the terminal device autonomously updates Access Stratum parameters based on state changes, then transmission delay is reduced, but parameter configuration reliability may decrease
Solution Approach 1:
The patent uses the terminal device's state machine and pre-configured parameter sets as intermediaries between the network side and the actual transmission process. When state changes occur, the terminal autonomously selects and applies appropriate parameters from pre-configured sets, which were originally provided by the network. This intermediary mechanism allows fast autonomous updates while maintaining reliability because the parameters themselves are network-authenticated and the selection logic follows standardized state transition rules.
Data Source
AI summary
A wireless communication method and a terminal device. The method comprises: a first terminal triggering, according to first indication information sent by a second terminal, at least one of the following items to perform configuration of parameters: a packet data convergence protocol (PDCP) reconstruction process or a PDCP data recovery process, a radio link control (RIX) reconstruction process, a media access control (MAC) resetting process, and a full configuration process.