System and method for mobile communication avoiding delay in data transmission
US6798763B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A partner appliance that communicates with a mobile node is connected via a communication network with a home agent and a foreign agent that relay the communication between the mobile node and the partner appliance. When the mobile node, moving during the communication, comes to be connected to a foreign link of the foreign agent, a moved address is assigned thereto. If the mobile node receives call setup request information regarding data transmission from the partner appliance via the home agent while moving, it determines, based on the received call setup request information, whether real-time transmission is required for the data. If so, the mobile node notifies the partner appliance of the moved address assigned thereto. When the moved address is notified, a communication path is established between the mobile node and the partner appliance, and the partner appliance sends the data to the mobile node via the communication path based on the moved address notified. Since the communication path includes the communication network and the foreign agent but does not include the home agent, transmission delay is avoided for the data requiring real-time transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.