Bandwidth reservation apparatus, bandwidth reservation method, communication apparatus, and communication system
US8908629B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 6, 2011 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/824
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bandwidth reservation apparatus and bandwidth reservation method that enable a communication apparatus to quickly begin and stably carry out a data transmission, and a communication apparatus and communication system including the bandwidth reservation apparatus. The bandwidth reservation apparatus includes: a transmit data buffer unit; a bit rate reporting unit; a first reserved bandwidth quantity calculating unit that calculates a first reserved bandwidth quantity required for the transmission on the communication network; a second reserved bandwidth quantity calculating unit that calculates a second reserved bandwidth quantity that is additionally acquired so as to compensate for a shortage of transmission bandwidth that occurs during an interval from a time when the bit rate of the transmit data changes until the first reserved bandwidth quantity can be reserved; and a bandwidth reservation control unit that reserves a combined reserved bandwidth quantity obtained by combining the first and second reserved bandwidth quantities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.