公开(公告)号：JPH11234235A

公开(公告)日：1999-08-27

申请号：JP28715398

申请日：1998-10-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ANDERSON JON ,  DOSHI BHARAT TARACHAND ,  DRAVIDA SUBRAHMANYAM ,  HERNANDEZ-VALENCIA ENRIQUE ,  KRISHNASWAMY MURALI ,  MANCHESTER JAMES S

IPC: H04L9/18 ,  H04J3/00 ,  H04J3/06 ,  H04J3/16 ,  H04L9/22 ,  H04L25/03 ,  H04L29/06 ,  H04Q11/04

Abstract: PROBLEM TO BE SOLVED: To prevent a pattern of a user data from being metched with a transmission scrambling pattern by scrambling a data gram before the data gram is scrambled by a transmission system again. SOLUTION: A bit which forms a data gram being processed by a simplified data link(SDL) processor 100 is scrambled before the data gram supplies a set/reset scrambler 501 used for surely maintaining synchronous state. In this case, a frame assembler 300 receives a data bit forming the data gram to be obtained, scrambles the bit of data gram based on a specific code and then assembles the result with a scrambling result and path overhead information into a pay load. Moreover, a scrambler circuit scrambles the pay load and related transfer overhead information and outputs the result as a frame of the data.

公开(公告)号：CA2248915A1

公开(公告)日：1999-04-11

申请号：CA2248915

申请日：1998-09-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRISHNASWAMY MURALI ,  MANCHESTER JAMES S ,  HERNANDEZ-VALENCIA ENRIQUE ,  ANDERSON JON ,  DOSHI BHARAT TARACHAND ,  DRAVIDA SUBRAHMANYAM

IPC: H04L9/18 ,  H04J3/00 ,  H04J3/06 ,  H04J3/16 ,  H04L9/22 ,  H04L25/03 ,  H04L29/06 ,  H04Q11/04 ,  H04L29/02 ,  H04B10/20 ,  H04L12/24

Abstract: A simplified data link protocol which may be implemented in a very high-speed transmission system, e.g., SONET, processes a datagram received from an IP facility according to QoS considerations and scrambles a datagram before it is again scrambled by a transmission system, e.g., a SONET transmitter, to ensure that the pattern of a user's data does not match the transmission scrambling pattern. The data link protocol scrambler also employs a novel synchronization scheme. We also use a pointer system which identifies the location of a datagram in a frame to eliminate flags and the need to process user data to ensure that it does not contain and a boundary flag.

公开(公告)号：AU8837998A

公开(公告)日：1999-04-29

申请号：AU8837998

申请日：1998-10-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ANDERSON JON ,  MANCHESTER JAMES S ,  KRISHNASWAMY MURALI ,  HERNANDEZ-VALENCIA ENRIQUE ,  DRAVIDA SUBRAHMANYAM ,  DOSHI BHARAT TARACHAND

IPC: H04L9/18 ,  H04J3/00 ,  H04J3/06 ,  H04J3/16 ,  H04L9/22 ,  H04L25/03 ,  H04L29/06 ,  H04Q11/04 ,  H04L7/00 ,  H04B10/00

Abstract: A simplified data link protocol which may be implemented in a very high-speed transmission system, e.g., SONET, processes a datagram received from an IP facility according to QoS considerations and scrambles a datagram before it is again scrambled by a transmission system, e.g., a SONET transmitter, to ensure that the pattern of a user's data does not match the transmission scrambling pattern. The data link protocol scrambler also employs a novel synchronization scheme. We also use a pointer system which identifies the location of a datagram in a frame to eliminate flags and the need to process user data to ensure that it does not contain and a boundary flag.