Wireless Carrier Allocation for Interference Management

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Solution Overview

Problem

Current techniques for managing simultaneous communications in wireless networks, such as those using the 60 GHz radio band, face challenges with latency and interference assessment, particularly in systems with varying antenna parameters, leading to inefficient bandwidth utilization and potential communication quality degradation.

Innovation Solution

A method that allocates distinct carriers to each device in a wireless network, allowing them to send test signals to estimate interference levels without disrupting existing communications, enabling simultaneous communications to be set up while ensuring they do not disturb the primary communication, thereby optimizing bandwidth usage and reducing latency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If each receiver device performs RSSI analysis to verify communication quality before setting up point-to-point communication, then communication quality is ensured, but latency time increases significantly

Engineering Contradiction:
Improvecommunication qualityVSAvoidlatency time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary RSSI analysis and communication quality verification during the initial network setup phase before actual data transmission begins. This allows the communication quality to be ensured in advance, while the actual data transmission can proceed without repeated quality checks, thereby reducing latency time during operation.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple devices attempt to set up simultaneous communications in a wireless network, then bandwidth utilization improves, but interference between communications increases

Engineering Contradiction:
Improvebandwidth utilizationVSAvoidinterference
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system assigns different antenna parameters (such as beamforming weights, antenna patterns, or spatial filters) to different simultaneous communications. This allows each communication to have optimized local quality characteristics tailored to its specific requirements, enabling multiple devices to communicate simultaneously while minimizing mutual interference through spatial separation and directional focusing.

Inventive Principle:
Principle #3Local quality

3Device complexity

If the system uses fixed antenna parameters for all communications, then device complexity is reduced, but adaptability to different communication scenarios deteriorates

Engineering Contradiction:
Improveantenna parameter configurationVSAvoidcommunication scenario adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The system implements dynamic antenna parameter adjustment where antenna configurations are automatically adapted based on real-time communication conditions, channel characteristics, and interference levels. This allows the system to maintain low complexity by using standardized mechanisms while achieving high adaptability through condition-based parameter optimization, enabling the same hardware to efficiently handle diverse communication scenarios.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9386592B2Method and device for managing communications in a wireless network, method for setting up a second communication, corresponding computer program product and storage means
Publication Date: 2016.07.05 CANON KK
  • US9386592B2 patent drawing
  • US9386592B2 patent drawing
  • US9386592B2 patent drawing

AI summary

A method is proposed for managing communications in a wireless network in which a first communication is set up or established on a plurality of carriers between a first sender device and a receiver device, the network comprising a set of at least one second sender device for which a second communication has to be established simultaneously with said first communication.Such a method comprises steps of:allocating a set comprising at least one carrier among said plurality of carriers to each second sender device;obtaining (, for each second sender device, a level of reception power of a predetermined signal sent by said second sender device on the set of carrier(s) that have been allocated to it;estimating a rate of disturbance of said first communication by one said or several said second communications as a function of the power level(s) obtained for the second sender device(s);authorizing the second sender device(s), for which the estimated rate(s) of disturbance is or are below a predefined threshold, to set up a said second communication on the plurality of carriers.