NAN Terminal Coordinated Cluster Joining

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing wireless communication systems face inefficiencies in the process of a NAN terminal joining a coordinated NAN cluster, particularly in determining master and anchor master ranks and transmitting beacon frames, which can lead to unnecessary procedures and power consumption.

Innovation Solution

A method and apparatus for a NAN terminal to receive NAN synchronization and discovery beacon frames, allowing it to join a coordinated NAN cluster by omitting certain procedures such as master and anchor master comparisons, and maintaining a Non-Master Non-Sync state, thereby reducing power consumption and operational inefficiencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a NAN terminal performs master and anchor master rank comparisons when joining a NAN cluster, then the cluster can maintain proper hierarchy and synchronization, but the terminal consumes more power and experiences increased operational complexity

Engineering Contradiction:

Improvecluster hierarchy maintenanceVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the master rank comparison and anchor master rank comparison procedures from the terminal's joining process. When a terminal receives a NAN discovery beacon frame indicating a coordinated NAN cluster, it omits these comparison steps entirely, thereby reducing power consumption while still maintaining cluster hierarchy through the coordinated cluster's pre-established structure.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The coordinated NAN cluster performs preliminary actions by pre-establishing the master and anchor master hierarchies before terminals join. The cluster coordinator pre-configures the hierarchy structure, so when terminals join, they simply follow the pre-established hierarchy rather than performing comparisons themselves, thus saving terminal power.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a NAN terminal transmits beacon frames when joining a NAN cluster, then the terminal can establish its presence and synchronize with the cluster, but this increases power consumption and operational overhead

Engineering Contradiction:

Improvesynchronization establishmentVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent removes the beacon frame transmission requirement from terminals joining coordinated NAN clusters. Terminals omit transmitting NAN synchronization beacon frames and NAN discovery beacon frames when joining, as the coordinated cluster already has established synchronization and hierarchy, thereby significantly reducing terminal power consumption.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Terminals skip the beacon transmission phase entirely when joining coordinated NAN clusters. Instead of performing the full sequence of beacon transmissions for synchronization establishment, terminals directly join the cluster using received beacon frames from the coordinator, rushing through the joining process with minimal power expenditure.

Inventive Principle:

Principle #21Skipping (Rushing through)

3Adaptability or versatility

If a NAN terminal performs cluster scans after joining a NAN cluster, then the terminal can discover other clusters and maintain network awareness, but this increases operational complexity and power consumption

Engineering Contradiction:

Improvenetwork awarenessVSAvoidterminal power consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the post-joining cluster scan procedure from terminals joining coordinated NAN clusters. Since the coordinated cluster already provides comprehensive network awareness through its coordinator structure, individual terminals omit subsequent cluster scans, reducing power consumption while maintaining adequate network awareness through the coordinator's information.

Inventive Principle:

Principle #2Taking out (Extraction)

4Ease of operation

If a NAN terminal performs master and anchor master rank comparisons when joining a NAN cluster, then the terminal can determine its role in the cluster, but this increases device complexity and operational overhead

Engineering Contradiction:

Improverole determinationVSAvoidjoining procedure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes the complex rank comparison logic from terminal devices. Terminals no longer need to implement master rank comparison algorithms or anchor master rank comparison algorithms when joining coordinated NAN clusters, simplifying device complexity while still enabling proper role determination through the coordinator's pre-established hierarchy.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10142950B2Method and device for transreceiving signals through NAN terminal in wireless communication system

Publication Date: 2018.11.27 LG ELECTRONICS INC

AI summary

One embodiment of the present invention relates to a method for transreceiving signals through a neighbor awareness networking (NAN) terminal in a wireless communication system, comprising the steps of: receiving a NAN synchronization beacon frame and/or a NAN discovery beacon frame; and accessing a NAN cluster which has transmitted the NAN discovery beacon frame, wherein when the NAN cluster is a coordinated NAN cluster, the NAN terminal maintains the state at the time of accessing the NAN cluster.