Relay Node Cell Access via Signal Forwarding
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Solution Overview
Problem
Terminals face difficulty accessing a cell served by a base station due to unavailable direct communication, as they cannot receive the synchronization signal and transmit the access signal directly.
Innovation Solution
A method involving sending a first request message to a relay node to relay signals between the terminal and the base station, receiving the synchronization signal, and then using the relay node to send an access signal to the base station, enabling the terminal to access the cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a relay node is used to relay signals between the base station and terminal, then signal strength is improved, but direct communication between terminal and base station becomes unavailable
Solution Approach 1:
The relay node acts as an intermediary to forward signals between the terminal and base station. The terminal sends a first request message to the relay node, which then relays the synchronization signal from the base station to the terminal and forwards the access signal from the terminal to the base station, enabling cell access through indirect communication.
2Reliability
If the terminal cannot directly receive synchronization signal and transmit access signal, then direct communication is blocked, but cell access procedure cannot be completed
Solution Approach 1:
The relay node serves as a mediator that receives the synchronization signal from the base station and forwards it to the terminal, and also receives the access signal from the terminal and forwards it to the base station, enabling the terminal to complete the cell access procedure indirectly.
Solution Approach 2:
The terminal sends a first request message to the relay node before attempting cell access, requesting the relay node to relay signals. This preliminary action establishes the relay communication path before the actual synchronization and access procedures occur.
Data Source
AI summary
Provided in embodiments of the present disclosure are a method and apparatus for accessing a cell served by a base station, a storage medium, and an electronic device. The method includes: a first request message is sent to a relay node, wherein the first request message is used for requesting the relay node to relay a signal between a terminal and the base station; a synchronization signal of the base station relayed by the relay node is received; and an access signal is sent to the base station by the relay node after receiving the synchronization signal, wherein the access signal is used for accessing the cell served by the base station.