Future Wei Technologies, Inc.

Huawei Technologies Co., Limited

Anni Wu

Jianhua Liu

Guozhu Long

Dong Wei

Guijin Xu

Wei Dong

An apparatus comprising a customer node configured to couple to an access node and to receive via a channel from the access node a time of day (TOD) value and a corresponding sample index (SNUM) value, wherein the TOD value and the SNUM value are used to estimate a second time of day (TOD') value based on a propagation delay of the channel (L-Delay), and wherein the TOD value and the TOD&#x2032; value are used to estimate a second SNUM value (SNUM&#x2032;) based on L-Delay and a plurality of parameters.

Method for accurate distribution of time to a receiver node in an access network

A method includes the following steps: sorting service data into retransmissive service data and non-retransmissive service data; allocating resources to the retransmissive service data and the non-retransmissive service data respectively, and encapsulating the data into DTUs according to the allocated resources; sending, by a sender, the DTU that bears the service data; receiving, by the sender, a retransmission request that is sent according to a result of judging a bit error and a type of the retransmissive service, where the retransmission request carries information about the DTU that needs to be retransmitted; and retransmitting, by the sender, a corresponding DTU that bears the retransmissive service data requested for retransmission.

Method, apparatus and system for transmitting data on digital subscriber line

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Shenzhen, China

Anni Wu