Wireless Paging Mechanism With Dedicated Connection Identifier
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Solution Overview
Problem
Current paging mechanisms in wireless communications networks are inefficient, particularly when transitioning from idle mode, as they require lengthy identifiers and multiple message exchanges to re-establish connections, increasing network overhead and complexity, especially for low-complexity IoT devices.
Innovation Solution
A method where a device maintains a dedicated connection identifier (DCID) and an always-on connection, allowing it to transition between active and standby states while periodically monitoring for paging messages, including a relay indicator, and retransmitting messages as necessary, reducing the need for reconnection and minimizing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a device enters idle mode to conserve energy, then energy consumption is reduced, but connection re-establishment requires multiple message exchanges and increases network overhead
Solution Approach 1:
The device performs preliminary actions by maintaining its DCID and connection state information in memory while in idle mode, rather than completely disconnecting. This allows the device to quickly resume communications by simply reactivating the existing connection identifier without requiring full re-establishment procedures, thus reducing both energy consumption and complexity when transitioning between active and idle states
Solution Approach 2:
The invention uses a dedicated connection identifier (DCID) that acts as a simplified copy or reference to the full connection state. Instead of maintaining complete connection information in idle mode, the device retains only the DCID, which can be quickly reactivated to restore the full connection, reducing memory requirements and simplifying the idle state while enabling fast reconnection
2Measurement precision
If the network uses traditional paging mechanisms with lengthy identifiers, then device identification is accurate, but network overhead increases significantly
Solution Approach 1:
The invention extracts only the essential identifying information from the full device identity into a compact DCID format. Instead of transmitting lengthy identifiers like IMSI or full device addresses in paging messages, the network uses the shortened DCID which uniquely identifies the device within the network context, thereby maintaining identification accuracy while dramatically reducing the quantity of data transmitted and the associated network overhead
Solution Approach 2:
The invention changes the parameter of identifier length from lengthy traditional identifiers to a compact DCID format. This parameter change allows the same device identification function to be achieved with fewer bits, reducing the size of paging messages and decreasing network overhead while preserving the ability to accurately identify and reach the intended device
3Speed
If a device maintains always-on connection to enable quick data transmission, then data transmission speed is improved, but energy consumption increases
Solution Approach 1:
The invention implements a dynamic connection state management system where the device can transition between active and idle states while maintaining its DCID. In active state, the device has full connectivity for fast data transmission. When transitioning to idle state, the device conserves energy by reducing radio activity while preserving its DCID in memory. The connection can be quickly reactivated by reusing the existing DCID without full re-establishment procedures, thus achieving a dynamic balance between transmission speed and energy consumption
Data Source
Figure 1
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Figure 4A~4B
AI summary
A paging method and system in a wireless network for a target device that is enabled to transition between an active state and a standby state, including: tracking a location of a target device within the network while the target device is in the standby state based on a periodic identifying signal from the target device; determining a serving transmission point for the target device based on the tracking; and instructing the serving transmission point to transmit a paging message to the target device.