Wireless UE Context Retention Grouping for Low Latency
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Solution Overview
Problem
Current mobile communication systems face challenges in managing data traffic, achieving high data rates, handling a large number of connected devices, maintaining low latency, and ensuring energy efficiency, particularly in retaining and configuring user equipment (UE) context effectively.
Innovation Solution
A method is proposed for grouping UE context retention based on UE context retention attributes, involving the transmission of relevant information to UE, verifying UE context, and performing connection configurations accordingly, utilizing UE context retention attributes to manage data transmission and reception efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If UE context retention information is transmitted to UE, then data transmission delay is reduced, but network signaling overhead increases
Solution Approach 1:
The patent extracts only the essential UE context retention attributes (retention indication and change possibility indication) from the complete UE context information and transmits them to the UE. This selective extraction reduces signaling overhead while providing sufficient information for the UE to optimize data transmission by identifying suitable target nodes for direct data forwarding.
Solution Approach 2:
The network performs preliminary verification of UE context at the target node before actual data transmission occurs. By pre-checking whether the target node has retained necessary UE context and whether changes are possible, the system avoids unnecessary data transmission delays and reduces redundant signaling that would occur during actual data transfer.
2Reliability
If UE context verification is performed, then connection reliability is improved, but processing time increases
Solution Approach 1:
The patent implements partial verification by checking only the critical UE context attributes (retention status and change possibility) rather than verifying the entire UE context. This partial verification approach maintains sufficient connection reliability for data transmission while significantly reducing processing time compared to complete context verification.
3Productivity
If network nodes group UEs by context retention attributes, then data transmission efficiency is improved, but network complexity increases
Solution Approach 1:
The patent segments the network into groups based on UE context retention attributes, creating distinct categories of UEs with similar characteristics. This segmentation enables targeted data transmission strategies for different groups, improving overall transmission efficiency while keeping the complexity manageable through attribute-based classification rather than individual UE management.
Data Source
AI summary
With regard to a method for transmitting and receiving data in a wireless communication system in the present specification, a method implemented by a first network node is characterized by comprising: transmitting a control message, including information pertaining to terminal context retention properties, to a terminal; receiving a first message including a first information block from the terminal; carrying out a verification process on the terminal on the basis of the received first message; and transmitting a second message to the terminal according to the results of the verification of the terminal, wherein the terminal context retention properties represent at least one of whether terminal context is retained or whether terminal context can be changed.