Protocol expansion of a signaling message
US8457313B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/122
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A bit sequence, which is contained in a signalling message and which is known to a network unit and to a communications terminal which receives the signalling message from the network unit, informs the communications terminal that a test value is contained in a signalling message. The test value received by the communications terminal is compared with a test value computed by the communications terminal, and the communications terminal defines a signalling message as being unmodified only in the event that the bit sequence contained in a signalling message has been received and the comparison of both test values yields a positive result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.