M2M UE Access Delay Control for Congestion Management
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Solution Overview
Problem
Existing mobile communication systems face congestion issues when multiple M2M UEs attempt system access simultaneously, as current congestion control schemes are inadequate to handle the unique characteristics of M2M communication devices.
Innovation Solution
Implementing a system access method where M2M UEs receive access delay information from a base station, allowing them to wait for a predetermined or randomly selected access delay time before attempting system access, thereby controlling access attempts and reducing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple M2M UEs attempt system access simultaneously according to existing access procedures, then system access capability is maintained, but communication congestion occurs
Solution Approach 1:
The base station performs preliminary congestion assessment before M2M UEs attempt system access. Access delay information is pre-calculated and provided to M2M UEs based on current system load conditions, allowing them to delay access attempts proactively before congestion occurs, rather than reacting after congestion has developed.
Solution Approach 2:
The access delay time is made dynamic rather than fixed. The base station continuously assesses system congestion conditions and adjusts the access delay information provided to M2M UEs in real-time, allowing the system to adapt access control parameters dynamically based on current traffic conditions and network load.
2Object-affected harmful factors
If access delay control is implemented for M2M UEs, then congestion is reduced, but system access time increases
Solution Approach 1:
Access delay control is applied selectively rather than universally. The base station assesses whether congestion control is actually needed based on current system conditions, and only imposes delays on M2M UEs when congestion is detected or predicted. When the system is not congested, M2M UEs can access immediately without delay, minimizing unnecessary time loss.
Solution Approach 2:
The system implements feedback mechanisms where the base station continuously monitors system access patterns and congestion conditions, then provides updated access delay information to M2M UEs based on real-time conditions. This feedback loop ensures that delays are adjusted optimally - long enough to prevent congestion when needed, but minimized when the system can handle the load.
Data Source
AI summary
According to an embodiment of the present invention, a system access method for a user equipment performing machine-to-machine (M2M) communication with a system may include: awaiting, when the user equipment detects a need for system access, reception of access delay information from a base station for a preset delay information wait time; obtaining, when access delay information is received from the base station within the delay information wait time, an access delay time from the access delay information; and awaiting expiration of the access delay time while not attempting system access. Hence, system access attempts made by many M2M user equipments can be efficiently handled in the present invention.