Comtech Ef Data Corporation

Nms Communications Corporation

Verso Backhaul Solutions, Inc.

Andrei E Toma

R Brough Turner

Charles C Linton

Aram Falsafi

Michael R Matatia

Svetlana O Sokolova

Kevin J Bruemmer

Daniel F Daly

James M Van Donsel

Kevin J Breummer

Murtaza Amiji

Benoit Delorme

Paul Trudel

David Ouellet

Jean-Hugues Deschenes

A data stream encoder eliminates duplicate transmission units in a transmitted data stream in which the detected duplicate may not be the immediately preceding transmission unit. A data aggregator transmits a stream of data by identifying a frame interval, or timing interval, corresponding to the time to send a frame of data in the stream. Each of the frames includes a predetermined number of blocks. Configurations identify repetition patterns in the blocks of successive frames, thus looking backward a frame interval to identify a previous corresponding block in the preceding frame. The corresponding transmission block need not be the immediately preceding block or transmission unit. For certain types of data, successive frames exhibit the same or similar patterns in the blocks of data defining the frame. Therefore, the encoder identifies duplicate blocks in successive frames, and transmits only the blocks that differ from a counterpart block in the previous frame.

Methods and apparatus for differential encoding

Wireless network demands continually increase as wireless service providers pursue additional service capabilities. In a cellular communication system, leased lines between remote cell sites and the corresponding Mobile Switching Offices (MSOs) remain a major operating cost. Bandwidth reduction by identification and elimination of payload data and control information which need not be fully replicated because it can be deduced from information accessible or previously transmitted allows fewer lines to support the same bandwidth. A wireless access gateway is operable to aggregate such redundant and regenerable data on a backhaul link between a wireless cell site and the corresponding mobile switching office (MSO) to provide low-latency, type specific lossless bandwidth reduction. The wireless access gateway identifies regenerable information and eliminates portions of the data which the device need not transmit because the data is redundant, or accessible or recreatable, at the receiving side. In this manner, the access device allows fewer lines to carry the reduced message traffic by transmitting only the non-recreatable data and eliminating message traffic for regenerable information.

Methods and apparatus for low latency signal aggregation and bandwidth reduction

Methods and apparatus for network signal aggregation and bandwidth reduction

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Framingham, MA, United States of America

Andrei E Toma