Patent · US Active

Timing transitions between wireless communication systems

US7773992B2 · kind B2 · utility

3Cited by

11References

19Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Serguei A. Glazko · San Diego, US
Subbarao Yallapragada · San Diego, US
Jiangxin Chen · San Diego, US

Key dates

Filing date	Feb 7, 2008
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Oct 3, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04W36/142
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Interoperability between wireless communication systems, such as the IS2000-1x and IS856 systems, is facilitated by using supervision timers. A wireless communication device starts one or more supervision timers and performs an intersystem transition. When the wireless communication device returns from the transition, the supervision timers are used to estimate the duration of the transition. The wireless communication device then performs a sequence of tasks appropriate to the estimated duration.

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