Connectionless Data Transmission via Random Access Channel

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Solution Overview

Problem

Wireless networks face signaling overloads due to the frequent establishment and termination of connections by IoT devices, leading to network resource utilization inefficiencies and traffic spikes, especially when transmitting small amounts of data.

Innovation Solution

Implementing a connectionless mode of data transmission that encodes data within LTE frame physical layer channels, utilizing random access channel messages and radio access response messages to transmit data without establishing a radio resource control connection, thereby reducing signaling overhead and maintaining connections for other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connection-oriented mode is used to ensure reliable data transmission, then data reliability is improved, but signaling overhead increases and network resources are consumed

Engineering Contradiction:

Improvedata transmission reliabilityVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the essential function of data transmission from the connection establishment process. By allowing devices to transmit data directly through random access channels without completing full RRC connection establishment, the solution separates data transmission functionality from connection management overhead, thereby reducing signaling while maintaining transmission reliability for small data packets

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the traditional connection establishment process into optional stages. Devices can perform partial connection setup (remaining in RRC idle state) rather than completing full connection establishment, allowing data transmission to proceed through segmented channels (physical uplink shared channel, random access channel) without requiring complete connection state transitions

Inventive Principle:

Principle #1Segmentation

2Reliability

If connection is established and maintained for data transmission, then data transmission reliability is improved, but network resource utilization deteriorates

Engineering Contradiction:

Improveconnection reliabilityVSAvoidnetwork resource utilization

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent implements periodic connection establishment only when necessary for data transmission. Devices transition to RRC connected state temporarily during data transmission bursts, then return to idle state, creating a periodic on-demand connection pattern rather than continuous connection maintenance, thereby improving network resource utilization while preserving reliability during active transmission periods

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent makes connection state dynamic rather than static. Devices can flexibly transition between RRC idle and RRC connected states based on real-time data transmission needs, allowing the system to adapt connection resources dynamically to actual traffic conditions rather than maintaining fixed connections, thus improving overall network resource utilization

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If frequent connection establishment and termination is performed, then adaptability to data transmission needs is improved, but signaling overload increases

Engineering Contradiction:

Improveconnection adaptabilityVSAvoidsignaling overload

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent treats connection establishment as a disposable, lightweight operation for small data packets. Rather than investing significant signaling resources in full connection setup and teardown for each small transmission, the system uses simplified random access channel procedures that can be rapidly established and discarded, making the connection process cheap and short-lived, thereby reducing signaling overload while maintaining adaptability

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent introduces the random access channel as an intermediary mechanism between idle state devices and the network. This intermediary allows devices to signal data transmission intent and exchange small amounts of data without requiring full RRC connection establishment, mediating between the need for adaptability and the harm of signaling overload by providing a middle-ground communication path

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS9832790B2Methods and apparatus to transmit data in a connectionless mode

Publication Date: 2017.11.28 AT&T INTELLECTUAL PROPERTY I L P

AI summary

Methods, apparatus, systems and articles of manufacture to transmit data in a connectionless mode are disclosed. An example method includes identifying, at a node in a wireless network, that a user equipment has indicated that the user equipment will communicate data without establishing a bearer with the wireless network. A random access channel (RACH) message transmitted to the node from the user equipment is accessed by the node. A preamble from the RACH message is extracted as the data. The data is inspected to identify a destination address of the data. The data is relayed to the destination address.