Radio Terminal Connection Timing Control
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Solution Overview
Problem
In mobile communication systems, especially those conforming to the 3GPP standard, the sudden increase in burden due to transmission and reception of connection request signals from multiple radio terminals poses a challenge, particularly with the rise of IoT technologies, as existing methods do not effectively distribute connection request timings to avoid overlaps and manage load efficiently.
Innovation Solution
A radio terminal is configured to determine the timing of making a connection request to a base station using an identifier allocated to it, thereby distributing connection request timings to reduce overlaps and manage load effectively, even in scenarios where access restriction information is not broadcast by the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple radio terminals transmit connection request signals simultaneously when data is generated in standby state, then communication connectivity is established quickly, but the burden on the base station increases abruptly
Solution Approach 1:
The patent segments the connection request transmission process by dividing terminals into different groups based on their identifiers (such as IMSI or TMSI). Each group is assigned a specific time slot or transmission window, which segments the simultaneous transmission burden into distributed time intervals. This ensures that connection requests are not transmitted all at once but rather in organized batches, reducing the abrupt load increase on the base station while maintaining efficient connection establishment.
2Quantity of substance
If connection request timings are distributed to reduce base station burden, then load management is improved, but connection establishment time increases
Solution Approach 1:
The patent applies preliminary action by having terminals pre-configure their transmission timing based on their identifiers before actually needing to establish communication. The terminal determines its optimal transmission time slot in advance using its assigned identifier (IMSI, TMSI, or random value), so when connection is needed, it can immediately transmit at the predetermined optimal time without requiring base station coordination or causing delays. This pre-planned timing distribution reduces both the burden on the base station and the overall connection establishment time.
3Quantity of substance
If access restriction information is broadcast by the base station to manage terminal access, then base station load is controlled, but system complexity and overhead increase
Solution Approach 1:
The patent implements self-service by enabling each terminal to autonomously determine its own optimal transmission timing based on its assigned identifier without requiring base station control or broadcast of access restriction information. The terminal uses its identifier (IMSI, TMSI, or random value) to calculate when it should transmit its connection request, making the access control mechanism distributed and terminal-driven rather than base station-driven. This eliminates the need for complex base station management and broadcast messages while effectively controlling the connection request volume.
Data Source
AI summary
A UE comprises: a controller configured to determine a timing of making a connection request to the base station when there is a need to start communication with the base station while the UE is in a RRC idle state; and a transmitter configured to transmit a connection request signal to the base station at the determined timing. The controller is configured to determine the timing using an identifier allocated to the radio terminal.