SERDES ARCHITECTURE WITH A HIDDEN BACKCHANNEL PROTOCOL

An illustrative multi-lane communication method implements a hidden backchannel to communicate equalization information and/or other link-related data without impinging on the user bandwidth allocatedby the relevant articles of IEEE Std 802.3. One embodiment is implemented by a transceiver: (a) rece...

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Bibliographic Details
Main Author SUN JUNQING
Format Patent
LanguageChinese
English
Published 29.01.2019
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:An illustrative multi-lane communication method implements a hidden backchannel to communicate equalization information and/or other link-related data without impinging on the user bandwidth allocatedby the relevant articles of IEEE Std 802.3. One embodiment is implemented by a transceiver: (a) receiving signals from different receive channels; (b) converting each receive channel signal into a lane of a multi-lane receive data stream via demodulation and error measurement; (c) deriving outgoing backchannel information based at least in part on the error measurement; (d) detecting alignment markers in each lane of the multi-lane receive data stream; (e) extracting incoming backchannel information from a backchannel field following each alignment marker in at least one lane of the multi-lane receive data stream; and (f) modifying the multi-lane receive data stream to obtain a modified multi-lane receive data stream by replacing backchannel fields with PCS (Physical Coding Sublayer) alignment markers, thereby cr
Bibliography:Application Number: CN201810796112