The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Oct. 30, 2009
Daniel J. Mcdonald, Cary, IL (US);
Harish Natarahjan, Steamwood, IL (US);
Daniel J. McDonald, Cary, IL (US);
Harish Natarahjan, Steamwood, IL (US);
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A method for Fixed Network Equipment (FNE) to control the three of four and one of four slow associated control channel (SACCH) pattern on an Association of Public-Safety Communications Officials (APCO) Project 25 (P25) trunked voice channel is provided. Knowledge of this pattern by both the FNE and radio allows for unique information to be signaled in each type of SACCH. According to some embodiments, an operation enables controlling the floor (inbound) while there is an independent outbound (floor) (e.g. Console takeover). The provided operation also allows each radio to differentiate inbound floor control signaling from outbound caller identification (ID). Having the infrastructure control the inbound SACCH pattern and communicate this to all radios, makes the correct detection of the transmitted pattern from the radio more reliable.