LLDP Agent Service List Acquisition Without IP Allocation

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Solution Overview

Problem

The existing methods for acquiring a service list in wireless networks require IP address allocation, leading to unnecessary network traffic and power consumption in mobile communication terminals.

Innovation Solution

A method and apparatus for transmitting a service list without completing the IP address allocation process, using a Link Layer Discovery Protocol (LLDP) agent that can be directly controlled in an upper layer to request and forward service lists between terminals and service list provision apparatuses, allowing service list transmission in the data link layer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If IP address allocation is performed for service list acquisition, then service discovery can be achieved, but unnecessary network traffic is generated and terminal power is consumed

Engineering Contradiction:

Improveservice discovery capabilityVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent extracts the service list transmission function from the IP layer and relocates it to the data link layer. By using LLDP protocol at the data link layer, the service list can be transmitted without requiring IP address allocation, thereby eliminating unnecessary network traffic and reducing terminal power consumption while maintaining service discovery capability

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an LLDP agent as an intermediary component that operates at the data link layer. This agent enables direct communication between terminals and service list provision apparatuses without involving the IP layer, thus avoiding IP address allocation overhead and reducing energy consumption while ensuring reliable service list delivery

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If IP address allocation is performed for service list acquisition, then service discovery can be achieved, but network traffic increases

Engineering Contradiction:

Improveservice discovery capabilityVSAvoidnetwork traffic

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Inventive Principle:

Principle #2Taking out (Extraction)

3Loss of energy

If LLDP is used for service list transmission, then IP address allocation is eliminated, but the protocol operates at a lower layer with limited functionality

Engineering Contradiction:

Improveterminal power consumptionVSAvoidprotocol functionality

Core Design Contradiction:

Loss of energyVSAdaptability or versatility

Solution Approach 1:

The patent extends the LLDP protocol's functionality by enabling it to carry service list information in addition to traditional device discovery functions. The LLDP agent is designed to handle both standard LLDP operations and service list transmission, making the protocol multi-functional and adaptable to service discovery requirements while operating at the data link layer

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8644820B2Apparatus and method for acquiring service information in wireless network

Publication Date: 2014.02.04 SAMSUNG ELECTRONICS CO LTD

AI summary

A service list acquisition apparatus is provided for acquiring, from at least one service list provision apparatus located in a wireless network coverage area, a service list related to a wireless network which can embody a portion where a service list is exchanged with the service list provision apparatus in a layer lower than an Internet protocol (IP) layer, thereby acquiring the service list without an additional IP address allocation procedure.