Group transmission in a packet radio network
US6466552B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1999 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jun 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/184
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method and apparatus for transmitting group messages in a packet radio network comprising at least one support node and a plurality of group members and at least one defined area. The support node knows the identity of group members in said area. The network comprises broadcast connections and point-to-point connections. The method according to the invention comprises: keeping track of the group members that have not received the group message and determining whether or not their number exceeds a predetermined threshold; in response to a positive determination in the previous step, transmitting the group message over a broadcast connection; and in response to a negative determination, transmitting the group message to the group members over a point-to-point connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.