Random Access Report Forwarding in Dual-Connectivity Systems
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Solution Overview
Problem
In dual-connectivity scenarios, there is a challenge in efficiently transmitting random access reports related to secondary base stations from terminals to the secondary base stations, leading to potential random access failures due to improper configuration.
Innovation Solution
A method where terminals send random access reports to primary base stations along with identifiers of corresponding secondary cells, allowing the primary base stations to forward these reports directly to the correct secondary base stations without parsing the content, thereby reducing signaling overheads and simplifying operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal sends random access reports to the secondary base station directly, then the random access report can be transmitted accurately, but the signaling overhead increases and the operation complexity increases
Solution Approach 1:
The patent introduces the primary base station as an intermediary to receive random access reports from the terminal and forward them to the secondary base station. This mediator approach allows the terminal to send reports to a single known entity (primary base station) rather than directly to the secondary base station, reducing terminal operation complexity while maintaining transmission accuracy through the standardized forwarding process.
Solution Approach 2:
The patent segments the random access report transmission process into two distinct phases: (1) terminal to primary base station transmission, and (2) primary base station to secondary base station forwarding. This segmentation allows each phase to be optimized independently, with the terminal using simplified procedures and the network side handling the complex routing and forwarding logic.
2Productivity
If the primary base station forwards the container to the secondary base station without parsing content, then the forwarding efficiency is improved, but the ability to verify report integrity is reduced
Solution Approach 1:
The patent applies preliminary action by having the terminal include necessary identification information and integrity check elements within the random access report container before forwarding. The primary base station can then forward the container efficiently without parsing its content, as the verification capabilities are already embedded in the pre-packaged report structure.
Solution Approach 2:
The patent creates a self-contained copy of the random access report information within the container, including all necessary identification and verification data. This allows the container to be forwarded as a complete unit without requiring the primary base station to parse or verify the content, maintaining both forwarding efficiency and integrity verification capabilities.
Data Source
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AI summary
This application provides a random access report transmission method and a communication apparatus. A terminal may record a random access report of a secondary base station (in other words, a secondary cell group) by using a container, and indicate, when sending the container to a primary base station, a primary secondary cell identifier corresponding to the container to the primary base station, so that the primary base station can forward the container to a corresponding secondary base station without parsing the container. One container may include one random access report, all random access reports that can be recorded by the terminal, or one or more random access reports of one primary secondary cell.