Idle Mode Terminal Paging Indicator for M2M Access Overhead
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In Machine to Machine (M2M) communication systems, devices in idle mode face challenges with access overhead and delay when transitioning from idle to connected states for data transmission and reception, particularly due to access collisions and the need for system access procedures.
Innovation Solution
The solution involves a method and apparatus that utilize paging messages with indicators for multicast group data, allowing devices to receive data without full system access, using identifier masks for downlink resources, and entering a paging non-listening interval when not required, thereby reducing access overhead and delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices in idle mode perform system access procedure to transition to connected state for data transmission, then data communication capability is improved, but access overhead and delay increase
Solution Approach 1:
The base station performs preliminary actions by buffering downlink data for idle mode devices and initiating paging procedures before the devices need to access the system. This allows data to be ready for transmission, reducing the time devices spend in access procedures when data is actually available.
Solution Approach 2:
The paging message serves as an intermediary mechanism between the base station and idle mode devices. Instead of devices continuously monitoring or performing access procedures, the base station uses paging messages to notify devices of available data, enabling efficient transition to connected state only when necessary.
2Productivity
If multiple devices perform system access procedure simultaneously to receive data from server, then data reception capability is improved, but access collision occurs
Solution Approach 1:
Devices operate in periodic idle mode cycles with defined listening intervals. The base station sends paging messages at specific intervals, and devices transition to connected state periodically to check for data. This periodic structure distributes access attempts over time, reducing simultaneous access collisions while maintaining data reception capability.
3Use of energy by moving object
If devices remain in idle mode to reduce power consumption, then energy efficiency is improved, but access overhead increases when data transmission is required
Solution Approach 1:
The base station performs self-service actions by proactively buffering data and initiating paging procedures for idle mode devices. This shifts the initiative from devices continuously checking for data to the base station notifying devices when data is available, reducing device complexity and access overhead while maintaining energy efficiency.
Data Source
AI summary
An apparatus for an idle mode terminal is configured to perform a method for operating the idle mode terminal in a Machine to Machine (M2M) communication system. A paging message is received from the base station during a paging listening interval. The Apparatus determines whether an indicator indicating receipt of multicast group data is included in the paging message. When the indicator indicating the receiving of multicast group data is included, data transmitted via a downlink resource that uses an identifier mask of a multicast group to which a terminal belongs is received. Thereafter, a paging non-listening interval is entered.