公开(公告)号：US20180097582A1

公开(公告)日：2018-04-05

申请号：US15564893

申请日：2016-04-22

Applicant: Alcatel Lucent

Inventor： Fred BUCHALI ,  Laurent SCHMALEN ,  Roman DISCHLER ,  Lars DEMBECK ,  Andreas LEVEN

IPC: H04L1/00 ,  H04B10/29

CPC classification number: H04L1/0045 ,  H04B10/29 ,  H04L1/0013 ,  H04L1/0043

Abstract: Embodiments relate to an apparatus for a regenerative network node between a first and a second link portion. The apparatus comprises an input configured to receive, from the first link portion, a signal impaired by the first link portion, the signal including a data packet with a Forward Error Correction (FEC) encoded payload portion and a header portion. The apparatus comprises a signal regeneration unit configured to mitigate signal impairments of the first link portion to provide a regenerated FEC encoded payload portion. The apparatus comprises a processing unit configured to extract destination information in the data packet's header portion. If extracted destination information indicates that the data packet's destination is the regenerative network node, the data packet's regenerated FEC encoded payload portion is forwarded to a decoding unit of the regenerative network node. Else, the data packet's regenerated FEC encoded payload portion is forwarded to the second link portion.

公开(公告)号：US20160197752A1

公开(公告)日：2016-07-07

申请号：US14909492

申请日：2014-08-14

Applicant: ALCATEL LUCENT

Inventor： Laurent SCHMALEN

IPC: H04L27/20 ,  H04L5/00 ,  H04L27/34

CPC classification number: H04L27/2085 ,  H04L5/0048 ,  H04L25/0228 ,  H04L25/0238 ,  H04L27/3455 ,  H04L27/3483

Abstract: Embodiments relate to a transmitter (71) for transmitting a signal comprising data symbols and non-deterministic pilot symbols. The transmitter includes a mapper (712) operable to map one or more non-deterministic bits (u) to a non-deterministic pilot symbol having a pilot symbol phase in a predetermined pilot symbol phase range; and a pilot symbol inserter (115) operable to insert the pilot symbol into a stream of data symbols. Further, embodiments also relate to a corresponding receiver (73) for receiving a stream of data and pilot symbols. The receiver includes a phase estimator (737) operable to estimate a phase of a transmission channel based on a comparison of a received symbol corresponding to a pilot symbol position with a hypothetical pilot symbol, the hypothetical pilot symbol corresponding to one or more hypothetical non-deterministic bits (u) and having a pilot symbol phase in a predetermined pilot symbol phase range.

Abstract translation: 实施例涉及用于发送包括数据符号和非确定性导频符号的信号的发射机（71）。 发射机包括映射器（712），其可操作以将一个或多个非确定性比特（u）映射到在预定导频符号相位范围内具有导频符号相位的非确定性导频符号; 以及导频符号插入器（115），其可操作以将导频符号插入到数据符号流中。 此外，实施例还涉及用于接收数据流和导频符号的相应接收机（73）。 接收机包括相位估计器（737），其可操作以基于对应于导频符号位置的接收符号与假想导频符号的比较来估计传输信道的相位，假想导频符号对应于一个或多个假想非导频符号， 确定性比特（u），并且在预定导频符号相位范围内具有导频符号相位。

公开(公告)号：US20180278367A1

公开(公告)日：2018-09-27

申请号：US15762306

申请日：2016-10-10

Applicant: Alcatel Lucent

Inventor： Ulrich GEBHARD ,  Laurent SCHMALEN

IPC: H04L1/00 ,  H04B10/27 ,  H04L12/801

Abstract: A technique is provided for providing control messages to one or more nodes included in an optical transmission network. The technique includes receiving, at a node, a container comprising a container header and a container payload portion. The container header comprises information regarding a destination node of the container, and the container payload portion includes one or more data portions comprising information associated with one or more client data packets and a control data portion. The control data portion is associated with one or more control messages and a forward error correction (FEC) information to protect the one or more control messages against transmission errors. The control data portion is decoded taking into account the FEC information. The one or more control messages included in the decoded control data portion are provided at the node.

公开(公告)号：US20180076930A1

公开(公告)日：2018-03-15

申请号：US15565272

申请日：2016-04-22

Applicant: Alcatel Lucent

Inventor： Fred BUCHALI ,  Laurent SCHMALEN ,  Roman DISCHLER ,  Ulrich GEBHARD

IPC: H04L1/00

CPC classification number: H04L1/0072 ,  H04B10/5161 ,  H04L1/0005 ,  H04L1/007 ,  H04L1/0083 ,  H04L1/0084

Abstract: Embodiments relate to a method for generating a second data packet for a second network layer from a first data packet including a first header portion with information related to a first network layer higher than the second network layer. The method comprises generating, based on the first header portion, a second header portion including information related to the second network layer and generating a payload portion including the first data packet. The method further comprises generating the second data packet for the second network layer by linking the second header portion and the payload portion.