Patent · US Active

Methods and systems for slow associated control channel signaling

US8165618B1 · kind B1 · utility

3Cited by

9References

26Claims

0Family size

Assignee

RESEARCH IN MOTION LIMITED · CA

Inventors

David Philip Hole · Southampton, GB
Eswar Vutukuri · Lo Wu, CN

Key dates

Filing date	Sep 26, 2011
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Sep 26, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/08
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Methods and systems for slow associated control channel signaling are disclosed. An example method for securing communications in a mobile network disclosed herein comprises transmitting a first variant of a message of a first type on a first slow associated control channel (SACCH) before ciphering is started on the first SACCH, and after ciphering is started on the first SACCH, transmitting a second variant of the message of the first type on the first SACCH, and subsequently transmitting the second variant of the message of the first type on the first SACCH, wherein the subsequently transmitted second variant of the message of the first type is the next transmitted message of the first type on the first SACCH.

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