Method and system for expanding the data payload of data messages transported via a cellular network control channel
US6738647B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2000 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Apr 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile station having the capability of inserting data content into the dialed digits field of a Call Origination signal issues a Call Origination signal to the mobile switching center (“MSC”) servicing the cell in which the mobile station is located. In response to receiving the Call Origination signal, the MSC issues an Origination Request message to a visitor location register system (“VLR”). The MSC issues an Origination Request message rather than a Qualification Request message because of the prior setting of one or more appropriate call processing trigger(s) at the switch. The dialed digits field of the Origination Request message comprises data content from the dialed digits field of the Call Origination signal received by the MSC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.