Wireless Device Network Access Using Dual Radio Technologies

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Solution Overview

Problem

Current communications networks face challenges in achieving efficient network access for wireless devices, particularly in terms of latency and response times, as they are limited by the use of a single radio access technology during the network access procedure, which does not allow for parallel setup of multiple connections or switching between different radio access technologies without causing delays.

Innovation Solution

The method involves a wireless device initiating network access using a first radio access technology and preparing to receive responses using a second, different radio access technology, allowing for simultaneous setup of multiple connections and switching between technologies based on response quality and latency, thereby enabling faster and more efficient network access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If a wireless device uses a single radio access technology for network access, then the network access procedure is simple and manageable, but the setup latency increases and response times are slower

Engineering Contradiction:
Improvesetup latencyVSAvoidnetwork access procedure complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The wireless device prepares receiving configurations for a second radio access technology in advance, before actually receiving the random access response. This preliminary preparation allows the device to immediately process responses from alternative RATs without delay, reducing setup latency while managing complexity through structured advance configuration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically switches between different radio access technologies based on which response is received first or which is most suitable. The wireless device can transition from using only the first RAT to accepting responses from the second RAT, creating a flexible and adaptive network access procedure that optimizes response time.

Inventive Principle:
Principle #15Dynamics

2Productivity

If a wireless device initiates network access using only one radio access technology, then the access procedure is straightforward, but parallel connection setup is not possible and response times are delayed

Engineering Contradiction:
Improvenetwork access efficiencyVSAvoidaccess procedure simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The network access procedure is segmented into independent parallel paths: one path handles responses from the first radio access technology while another path simultaneously handles responses from the second radio access technology. This segmentation allows both connection setup processes to occur concurrently, improving productivity while maintaining operational simplicity through structured parallel processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The wireless device is configured to universally accept random access responses from multiple different radio access technologies. By preparing receiving configurations for both the first and second RATs, the device gains multi-functionality, allowing it to process responses from either technology and select the most appropriate one, thereby enhancing network access efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Loss of time

If the wireless device waits for a response from the initiated radio access technology before preparing for alternative technologies, then the procedure remains simple, but network access latency increases

Engineering Contradiction:
Improvenetwork access latencyVSAvoidreceiving configuration complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The wireless device performs preliminary configuration for receiving random access responses from the second radio access technology immediately after initiating access via the first RAT, rather than waiting for a response timeout. This advance preparation reduces network access latency by ensuring the device is ready to process alternative responses without delay, while managing complexity through structured configuration procedures.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10893469B2Network access of a wireless device
Publication Date: 2021.01.12 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US10893469B2 patent drawing
  • US10893469B2 patent drawing
  • US10893469B2 patent drawing

AI summary

There is provided mechanisms for network access of a wireless device to a communications network. A method is performed by the wireless device. The method comprises initiating network access using a first radio access technology to the communications network. The method comprises preparing for receiving at least a response to the network access from a network node in the communications network using at least a second radio access technology different from the first radio access technology.