US 10,321,336 B2Granted

Systems and methods for robustly determining time series relationships in wireless networks

AssigneeFuturewei Technologies, Inc.

InventorsYing Li, Baoling S. Sheen, Jin Yang

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Abstract

Quality of service problems in wireless networks can be identified, and in some cases resolved, autonomously using an optimization technique that adjusts parameters of the wireless network based on relationships between key quality indicators (KQIs) and key performance indicators (KPIs). A KQI may be used to gauge the quality of service/experience collectively observed by users/devices when communicating a particular type of traffic in a wireless network or wireless network area. A KPI may be any specific performance metric of a wireless network tending to have a causal or correlative relationship with a KQI. Different types of relationships between a KQI and KPIs may be used to evaluate a quality of service problem, including correlation coefficients, slopes of linear regression, hit-ratios, and others.

Claims16

Dependent claims

A method for adjusting parameters of a wireless network, the method comprising:

receiving, by a controller in the wireless network, a key quality indicator (KQI) and two or more key performance indicators (KPIs) associated with wireless transmissions in the wireless network during a first period;
identifying, by the controller, one or more subsets of discrete time intervals in the first period in which the KQI fails to satisfy quality criteria;
calculating, by the controller, relationship indicators between the KQI and the two or more KPIs during the one or more subsets of discrete time intervals, the relationship indicators include hit-ratio correlation coefficients indicating degrees to which a difference between the KQI and a quality threshold correlates to a difference between a corresponding one of the two or more KPIs and a corresponding performance threshold;
and
adjusting, by the controller, configuration parameters that are to be used to operate the wireless network during a second or subsequent period based on the relationships between the KQI and the two or more KPIs.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/072,025Filed 16 Mar 2016
Published: US 2017/0272960 A121 Sep 2017
Granted: 11 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 41/142
Network analysis or design: using statistical or mathematical methods
H04L 41/0816
Characterised by the conditions triggering a change of settings: the condition being an adaptation, e.g. in response to network events
H04L 41/0823
Configuration setting: characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
H04L 41/5009
Managing SLA; Interaction between SLA and QoS: determining service level performance parameters or violations of service level contracts, e.g.…

Family

US 2017/0272960 A1Pre-grant publication · published 21 Sep 2017
US 10,321,336 B2This patent

From the US filing history. Foreign family members aren’t listed.

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