Autonomous Wireless Transmission Mechanism for IoT
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Solution Overview
Problem
Current wireless communication systems, particularly those based on LTE, face challenges with high scheduling overhead, limited coverage, and low battery life for short packet access in Machine Type Communications (MTCs) and IoT applications, which are not effectively addressed by existing technologies.
Innovation Solution
An autonomous wireless transmission mechanism that allows wireless end devices to transmit data to a wireless access node without establishing a connection, using pre-defined resource chunks and preamble transmission zones, enabling connectionless communication and reducing the need for scheduled transmission modes, thereby conserving resources and power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scheduled transmission mode is used for broadband packet data access, then data throughput is improved, but scheduling overhead increases and battery life decreases
Solution Approach 1:
The patent extracts and removes the connection establishment and scheduled transmission components from the communication process. Devices transmit data autonomously without requiring network scheduling or connection management, eliminating the energy-consuming overhead while maintaining data transmission capability
Solution Approach 2:
The patent enables devices to self-manage their data transmissions without network coordination. Each device independently selects resources and transmits data autonomously, removing the need for energy-intensive scheduling interactions with the network
2Reliability
If connection establishment is required for data transmission, then transmission reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent removes the connection establishment phase entirely from the data transmission process. Devices can directly transmit data using pre-configured autonomous resources without performing RRC connection setup, state transitions, or other connection management procedures
Solution Approach 2:
The patent performs connection-related configurations in advance during network initialization, where the network pre-allocates autonomous transmission resources and devices are configured with the necessary parameters before actual data transmission begins
3Ease of operation
If random access channel procedure is used for uplink transmission, then connection establishment is achieved, but access delay and overhead increase
Solution Approach 1:
The patent extracts the random access channel (RACH) procedure from the uplink transmission process. Devices transmit data directly on uplink resources without performing the multi-step RACH sequence, significantly reducing access delay and procedural overhead
Solution Approach 2:
The patent pre- configures uplink transmission resources and device parameters during network initialization, so that when data needs to be transmitted, devices can immediately use the pre-prepared resources without undergoing access procedures
Data Source
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AI summary
The present disclosure generally discloses an autonomous wireless transmission mechanism. The autonomous wireless transmission mechanism may be configured to support autonomous transmissions by wireless end devices to wireless access nodes in a connectionless manner. In general, an autonomous wireless transmission by a wireless end device may include transmission of a preamble in a preamble transmission zone and autonomous transmission of a payload over one or more resource units of one or more payload transmission zones without requiring establishment of a connection between the wireless end device and the wireless access node. The autonomous wireless transmission mechanism, by obviating the need for a wireless end device to establish a connection with a wireless access node in order to transmit data to the wireless access node, also obviates a need for the wireless end device to operate in a scheduled transmission mode.