AIoT Paging Message Format for Low-Power Reliable Access
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Solution Overview
Problem
Current AIoT systems lack standardized formats and procedures for AIoT paging messages, which are crucial for communication between power-limited devices and readers, especially in scenarios where devices may not have batteries and rely on energy harvesting, necessitating efficient and low-cost communication protocols.
Innovation Solution
The proposed solution involves defining a format for AIoT paging messages that include a message header with a PDU type, device identifiers, record count, and payload, along with specific fields like device ID, record length, cause code, and response indicators, enabling devices to process and respond appropriately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If devices use energy harvesting without batteries, then power consumption is reduced, but communication reliability deteriorates due to power limitations
Solution Approach 1:
The reader performs preliminary actions by transmitting paging messages with predetermined formats and structures before actual data communication begins. The paging message includes pre-formatted fields for device identification, message type indication, and control information, allowing devices to process communication parameters in advance without requiring additional processing power during the actual data transfer.
Solution Approach 2:
The patent applies parameter changes by defining specific message formats with predetermined fields and structures that optimize communication for low-power devices. The paging message format includes specific parameter settings for message type indicators, device ID fields, and control information that enable reliable communication while minimizing power consumption requirements for energy-harvesting devices.
2Productivity
If standardized paging message formats are implemented, then communication efficiency is improved, but device complexity increases due to protocol requirements
Solution Approach 1:
The paging message is segmented into distinct fields and structures including message type indicator, device ID, record length, cause code, and payload sections. This segmentation allows devices to process and interpret specific portions of the message independently, reducing the overall complexity of protocol implementation while maintaining communication efficiency through standardized formatting.
Solution Approach 2:
The standardized paging message format serves multiple functions simultaneously: device identification, message type indication, control information transmission, and data payload delivery. By making the message format universal and multi-functional, the patent reduces device complexity by eliminating the need for multiple separate communication protocols while maintaining high communication efficiency across different scenarios.
3Reliability
If paging messages include comprehensive device information, then communication reliability is improved, but message size increases consuming more energy
Solution Approach 1:
The paging message applies local quality by including comprehensive device information only in specific fields where needed, such as device ID and cause code, while keeping other fields concise or optional. The message structure allows selective inclusion of information based on the specific communication scenario, ensuring reliability when needed while minimizing message size and energy consumption when full information is not required.
Data Source
AI summary
Various techniques pertaining to ambient Internet of Things (AIoT) paging procedures and signaling in wireless communications are described. In a method of processing a paging message in an AIoT system, a device receives the paging message and processes at least one paging record contained in the paging message by: (a) matching a device identifier (ID) in the paging record to at least one identifier assigned to the device; (b) determining whether the paging record requests a response; and (c) responsive to determining that the paging record requests the response, initiating an AIoT random access procedure on one or more radio resources determined in accordance with a content of the paging message.