Apparatus and method for delivering key information of a channel request message from a user terminal to a network
US6249677A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Feb 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/2125
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus and method, for use with the satellite-based communications network, for improving the reliability and speed at which communication between a user terminal and the network is established. The apparatus and method arranges data of a channel request message transmitted from a user terminal to a satellite in the satellite-based network to insure that the most critical data for establishing communication between the user terminal and the satellite-based network is received at the satellite during the appropriate receiving time frame window. The channel request message includes a first data group necessary for establishing a communication link for which information is transmitted between the apparatus and the network, and a second data group including information for decreasing the amount time necessary to establish the communication link. The first data group is positioned at the center of the channel request message, with portions of the second data group at opposite ends of the channel request message. The time at which the user terminal transmits the channel request message is set based on a location of the apparatus within a spot beam, to take into account the appropri…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.