Group Representative Random Access Resource Management
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Solution Overview
Problem
Current mobile networks face signaling congestion and overload due to bursty traffic from machine-to-machine (M2M) communications, particularly when a large number of devices simultaneously attempt to access the central unit, leading to collisions and inefficient use of RA resources.
Innovation Solution
The method involves forming device groups with a group representative that has priority access to RA resources, allowing the representative to send a primary event message and manage access for group members, thereby reducing collisions and optimizing resource use by reserving RA resources for the representative and scheduling access for group members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RA resources are allocated to all devices equally, then device access opportunity is improved, but signaling congestion probability increases
Solution Approach 1:
The patent segments devices into two categories: M2M devices and human-based devices. This segmentation allows different RA resource allocation strategies for each category, preventing signaling congestion from M2M devices while maintaining access opportunities for human-based devices.
Solution Approach 2:
The patent applies local quality by providing priority access to RA resources specifically for M2M devices. This means M2M devices receive enhanced service in terms of RA resource allocation, while human-based devices use standard allocation, creating differentiated quality of service based on device type.
2Reliability
If priority access is provided to M2M devices, then M2M communication reliability is improved, but human-based device access may be restricted
Solution Approach 1:
By segmenting devices into M2M and human-based categories, the system can provide priority access to M2M devices without completely blocking human-based devices. The segmentation enables selective prioritization while maintaining overall system accessibility.
Solution Approach 2:
The patent applies partial action by providing priority access only to M2M devices for critical communications, while human-based devices retain standard access rights. This partial prioritization ensures M2M reliability without excessively restricting human-based device access.
3Reliability
If redundant messages are transmitted by multiple devices, then message delivery reliability is improved, but network overload increases
Solution Approach 1:
The patent merges the messaging functions of multiple M2M devices by having them transmit redundant messages through a coordinated approach. The network receives and processes these redundant messages efficiently, combining their information while managing network load through structured handling.
Solution Approach 2:
The patent implements feedback mechanisms where the network responds to M2M device messages with acknowledgment signals. This feedback allows devices to understand when their messages have been received, enabling them to suppress redundant transmissions and reducing network overload while maintaining delivery reliability.
Data Source
AI summary
A method for organizing random access (RA) resources, comprising: forming a device group including a plurality of group members and at least one group representative; providing the at least one group representative with priority access to RA resources; sending, by the at least one group representative, a primary event message to a central unit in said RA resources; and sending, by the central unit, a response message, responsive to the primary event message, to the group members for managing access of the group members to the RA resources.