US 10,075,336 B2Granted

Parameter adjustment method and apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorsShuicai Rao, Deping Dong, Qinxue Wu, Mincai Wang

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Abstract

A parameter adjustment method and apparatus are provided. The parameter adjustment method for a communication device with a SerDes link includes: acquiring, by the communication device, a current ambient temperature of the communication device; and if according to a preset correspondence between a temperature range and a parameter, the current ambient temperature is determined to be not corresponding to a SerDes parameter of the communication device, adjusting the SerDes parameter of the communication device according to the correspondence. The SerDes parameter of the communication device is adjusted in real time, thereby improving reliability of a SerDes link of the communication device, and reducing a bit error rate of the SerDes link.

Claims8

Dependent claims

A parameter adjustment method, applicable to a communication device comprising a serializer/deserializer (SerDes) link, wherein the method comprises:

monitoring, by the communication device, a packet loss rate of the SerDes link;
if the packet loss rate is greater than a set threshold, acquiring, by the communication device, a current ambient temperature of the communication device;
and
if it is determined, according to a preset correspondence between a temperature range and a parameter, that the current ambient temperature does not match a SerDes parameter of the communication device, adjusting the SerDes parameter of the communication device according to the preset correspondence,
wherein the SerDes parameter of the communication device comprises a pre-emphasis coefficient and a pre-equalization coefficient, a transmit end of the SerDes link pre-processes a to-be-sent serial signal by using the pre-emphasis coefficient, and a receive end of the SerDes link performs compensation for a received serial signal by using the pre-equalization coefficient.

2 more elements

A parameter adjustment apparatus, applicable to a communication device comprising a serializer/deserializer (SerDes) link, wherein the apparatus comprises:

an acquiring module configured to monitor a packet loss rate of the SerDes link of the communication device;
and if the packet loss rate is greater than a set threshold, acquire a current ambient temperature of the communication device;
and
a processing module configured to:
if it is determined, according to a preset correspondence between a temperature range and a parameter, that the current ambient temperature does not match a SerDes parameter of the communication device, adjust the SerDes parameter of the communication device according to the preset correspondence,
wherein the SerDes parameter of the communication device comprises a pre-emphasis coefficient and a pre-equalization coefficient, a transmit end of the SerDes link pre-processes a to-be-sent serial signal by using the pre-emphasis coefficient, and a receive end of the SerDes link performs compensation for a received serial signal by using the pre-equalization coefficient.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/522,406Filed 23 Oct 2014
Priority: CN 2013 1 05390184 Nov 2013
Published: US 2015/0124580 A17 May 2015
Granted: 11 Sep 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 41/0816
Characterised by the conditions triggering a change of settings: the condition being an adaptation, e.g. in response to network events
H04B 3/04
Details: control of transmission; Equalising
H04L 1/0001
Arrangements for detecting or preventing errors in the information received: systems modifying transmission characteristics according to link…
H04L 1/241
Testing correct operation: using pseudo-errors