Reliable information service message delivery system
US5398021A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/022
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reliably delivering information service messages (300) from a central terminal (106) to a communication receiver (118) in a wireless message communication system (100). The communication receiver (118) receives information service messages including an information group identifier and data updates corresponding thereto. The communication receiver (118) receives disable messages (400) including an expiration time. The communication receiver (118) decodes received data updates (306) when the information group identifier (226) is determined as enabled. It does not decode received data updates (306) when the information group identifier (220) is determined as disabled (222). The communication receiver (118) determines enabled status as a default condition, and determines disabled status when a disable message (400) was received. The received disable message (400) includes an expiration time (408) for maintaining the information group identifier (220) disabled until the expiration time (224) expires and then enables the information group identifier (220).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.