Patent · US Expired

Cordless telecommunications system

US6490447B2 · kind B2 · utility

4Cited by

12References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Rolf Biedermann · Hamminkeln, DE
Josef Baumeister · Borken, DE

Key dates

Filing date	Mar 26, 1998
Grant date	Dec 3, 2002
Priority date	—
Expiry date	Mar 26, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2250/08
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

In a cordless telecommunications system with assured interoperability of cordless telecommunications applications, in particular a GAP-specific DECT system, having a cordless base station and having cordless mobile parts which are capable of telecommunication with the cordless base station via a radio interface wherein the number of mobile points exceeds the number of telecommunications channels which are available in parallel at the cordless base station, collective/group calls being possible while the interoperability of the cordless telecommunications applications remains ensured, mixed operation is implemented including a connection-based virtual-collective/group call and a connectionless collective/group call.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.