Radio station, routing method and radio communication system
US-9226190-B2 · Dec 29, 2015 · US
Weighted-fairness in message rate based congestion control for vehicular systems
US8948044B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948044-B2 |
| Application number | US-201213664308-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 30, 2012 |
| Priority date | Oct 30, 2012 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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A system and method for implementing congestion control for vehicles based at least in part on weighted fair message rates is disclosed. The system comprises a measurement module, a calculation module and a determination module. The measurement module measures a channel busy ratio describing a fraction of time during which a channel is busy. The calculation module calculates a ratio error by comparing the measured channel busy ratio with a target channel busy ratio. The determination module determines a first parameter value for a first vehicle based at least in part on a ratio of weights and determines a message rate for the first vehicle based at least in part on the ratio error and the first parameter value. The message rate describes a speed for transmitting messages from the first vehicle.
First claim
Opening claim text (preview).
What is claimed is: 1. A computer-implemented method, comprising: measuring a channel busy ratio describing a fraction of time during which a channel is busy; calculating a ratio error by comparing the measured channel busy ratio with a target channel busy ratio; determining a first parameter value for a first vehicle based at least in part on a ratio of weights; and determining a message rate for the first vehicle recursively based at least in part on the ratio error and th…
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- H04W28/021Primary
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US8948044B2 cover?
- A system and method for implementing congestion control for vehicles based at least in part on weighted fair message rates is disclosed. The system comprises a measurement module, a calculation module and a determination module. The measurement module measures a channel busy ratio describing a fraction of time during which a channel is busy. The calculation module calculates a ratio error by co…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04W28/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).