Wireless T/E transceiver frame and signaling controller

• US 20060268775A1
• Filed: 05/23/2006
• Published: 11/30/2006
• Est. Priority Date: 11/14/1997
• Status: Active Grant

• Current Assignee: Hanger Solutions, LLC (IP Investments Group LLC)
• Original Assignee: Wireless Facilities Incorporated (Kratos Defense & Security Solutions Incorporated)
• Inventors: Safavi, Saeid, O'Shea, Deirdre, Lakkis, Ismail, Bui, Hoang Xuan, Roy, Joseph J., Tayebi, Masood K., O'Scolai, Cathal, Hatim, Baya
• Granted Patent: US 7,990,918 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04J 3/0685 Clock or time synchronisation in a node; Intranode synchronisation
• CPC Class Codes: H04J 3/1623 Plesiochronous digital hierarchy [PDH]
• CPC Class Codes: H04W 84/14 WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Abstract

A system and method providing a frame structure to received channel data sent over an air interface of a wireless communication system. The system and method may allow compensation for transmitting and receiving frequency variations, synchronization at the receiver, and provides a virtual signaling channel which may be used for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.

Claims

1. A virtual channel system for wireless, multi-channel signaling, comprising:

a framer receiving a multiple channel signal, comprising;

a framing circuit configured to frame the received multiple channel signal to form channel frames that each have a plurality of overhead bits and a plurality of data bits including data from one of the received channels, and to incorporate a virtual channel which is communicated via a plurality of channel frames, the framing circuit including a timing logic circuit to provide clock signals for the insertion of at least the overhead bits into the channel frames, and

a signaling controller configured to provide virtual channel signals to the framing circuit, wherein a plurality of virtual channel signals form a message for sending on the virtual channel;

a wireless transmitting system converting the overhead and data bits of the channel frames into transmitted wireless signals;

a wireless receiving system converting the transmitted wireless signals back into the channel frames; and

a deframer receiving the channel frames, extracting the virtual channel signals therefrom, and forming the multiple channel signals as received by the framer.