Relay-Assisted Cellular Terminal Connection Establishment
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Solution Overview
Problem
The existing random access procedures in cellular networks are prone to collisions, leading to resource wastage and increased transmission delays due to the random selection of mobile radio resources by terminal devices, especially in scenarios with a large number of devices attempting to access the network simultaneously.
Innovation Solution
A terminal and method that generate a request for radio network resources, transmit this request to a relay device, which forwards it to the base station, allowing the terminal to establish a cellular network connection using assigned resources, thereby avoiding contention-based random access procedures and reducing RACH overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If random access procedures are used for network connection establishment, then terminals can access the network independently, but collisions occur leading to resource wastage and increased transmission delays
Solution Approach 1:
The patent introduces a relay device as an intermediary between the terminal and base station. The relay device receives connection requests from terminals and forwards them to the base station, eliminating the need for terminals to perform random access procedures directly with the base station. This mediator approach resolves the collision problem while maintaining independent access capability.
2Ease of operation
If random access procedures are used for network connection establishment, then terminals can access the network independently, but resource wastage increases due to collisions
Solution Approach 1:
The relay device acts as an intermediary that consolidates multiple terminal connection requests before forwarding to the base station. This approach eliminates the need for multiple terminals to simultaneously compete for the same random access resources, thereby preventing resource wastage caused by collisions while maintaining independent access capability.
Solution Approach 2:
The patent combines multiple terminal connection requests into a single relayed message transmitted through the relay device. By merging these requests, the system avoids the resource wastage that would occur if each terminal independently performed random access procedures that could collide.
3Productivity
If relay device is introduced for connection establishment, then collisions are reduced and network efficiency improves, but device complexity increases
Solution Approach 1:
The relay device, while adding a component to the system, leverages existing cellular network infrastructure and protocols. The relay device can be implemented using standard cellular communication capabilities, which minimizes the increase in overall system complexity while achieving improved network connection efficiency.
Data Source
AI summary
A terminal may include a generator configured to generate a request for radio network resources from a cellular network; a transmitter configured to transmit the request for radio network resources to a relay device, wherein the request for radio network resources may be configured to be forwarded by the relay device to a base station of the cellular network; and a controller configured to establish a cellular network connection between the terminal and the base station of the cellular network using radio network resources assigned to the terminal by the cellular network.