公开(公告)号：US20240214304A1

公开(公告)日：2024-06-27

申请号：US18598914

申请日：2024-03-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey ,  Yumeng Yang

IPC: H04L45/24 ,  H04L12/40

CPC classification number: H04L45/24 ,  H04L12/4013 ,  H04L2012/40273

Abstract: A communication interface for use at a first end of a communication link including a number of communication lanes greater or equal to two. The communication interface includes a logic configured to cooperate with another communication interface at a second end of the communication link to send a data frame to the second end over the communication lanes. The logic is configured to store a communication lane status for each of the communication lanes, and when detecting that the communication lane status for a specific communication lane has changed to a determined status. The logic is configured to send the changed communication lane status for the specific communication lane to the communication interface at the second end and split a data frame accordingly. The communication interface provides seamless data communication between the first end and the second end of the communication link, even in case of a lane failure.

公开(公告)号：US20240406042A1

公开(公告)日：2024-12-05

申请号：US18799699

申请日：2024-08-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04L25/08 ,  H04L25/03

Abstract: An apparatus for reduction of transmitter originated common mode signal in a wired data communication link includes a digital front-end configured to generate a differential transmit signal based on transmit data, and pulse-shape the differential transmit signal by a pulse-shaping filter to obtain a pulse-shaped differential transmit signal. The digital front-end includes a compensation filter configured to filter the differential transmit signal in order to reduce a common mode signal distortion. The apparatus further includes an analog front-end configured to convert the pulse-shaped differential transmit signal into an analog signal for transmission over the wired data communication link, a common mode signal detector configured to detect the common mode signal in the analog signal, and a filter coefficient determiner configured to determine filter coefficients of the compensation filter based on the detected common mode signal for common mode signal reduction and provide the filter coefficients to the compensation filter.

公开(公告)号：US20240405799A1

公开(公告)日：2024-12-05

申请号：US18799827

申请日：2024-08-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04B3/23

Abstract: The disclosure relates to techniques for power efficient and smart echo cancellation. An apparatus is provided that comprises a finite impulse response filter having a set of M+1 filter coefficients for filtering values of a reference signal to obtain a first filtered reference signal. The apparatus comprises an interval selector for selecting values of the reference signal associated with a k-th time interval of an echo impulse response having N time intervals. The apparatus comprises M delay elements arranged after the interval selector for successively delaying the selected values. The apparatus comprises M+1 error estimators. A first error estimator is coupled to an output of the interval selector. Each of the remaining M error estimators is coupled to an output of a respective delay element. The M+1 error estimators are configured to determine the M+1 filter coefficients to minimize deviation between the first filtered reference signal and the received signal.

公开(公告)号：US20240097936A1

公开(公告)日：2024-03-21

申请号：US18525330

申请日：2023-11-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04L12/40 ,  H04L12/46

CPC classification number: H04L12/40182 ,  H04L12/4645

Abstract: A communication interface is used at a first end of a communication link and includes a number of communication lanes. The communication interface includes a logic configured to cooperate with another communication interface at a second end of the communication link to send data to the second end over the communication lanes. The logic is configured to store a communication lane status for an awake communication lane, and upon detecting that the communication lane status for the awake communication lane is changed to a first determined status: to stop sending data over the awake communication lane, change an asleep communication lane into a new awake communication lane, and inform the communication interface at the second end.

公开(公告)号：US20230387964A1

公开(公告)日：2023-11-30

申请号：US18449504

申请日：2023-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04B3/54 ,  H04B3/48 ,  H04L12/10

CPC classification number: H04B3/54 ,  H04L12/10 ,  H04B3/48

Abstract: A power line data transceiver is for transmitting or receiving data over a power line. The power line is adapted to distribute electric power. The power line transmitter has a data transceiver coupled to the at least two wires of the shielded cable via a capacitive coupling network. The data transceiver is configured to transmit or receive a data signal over the at least two wires of the shielded cable. A power supply is coupled to the shielded cable over an inductive coupling network. The power supply is configured to inject a feeding current on the at least two wires of the shielded cable for feeding the electric load with electric power, and to receive a return current from the electric load over the conductive shield of the shielded cable.

公开(公告)号：US20250150313A1

公开(公告)日：2025-05-08

申请号：US19011048

申请日：2025-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04L25/03

Abstract: The present disclosure relates to an apparatus for increasing randomness among different communication lanes of a multilane wired data communication link. The apparatus comprises a multilane data transmitter configured to simultaneously transmit data over a first communication lane and a second communication lane of the multilane wired data communication link. The apparatus comprises a set of data scramblers configured to scramble the data before transmission by the multilane data transmitter. A first data scrambler is configured to scramble data starting with a first seed signal specifying an initial state of the first data scrambler. A second data scrambler is configured to scramble data starting with a second seed signal specifying an initial state of the second data scrambler. The first seed signal and the second seed signal differ from each other by a predetermined signal distance measure that increases the randomness among the data from the set of data scramblers.

公开(公告)号：US20240063846A1

公开(公告)日：2024-02-22

申请号：US18493528

申请日：2023-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sujan Pandey

IPC: H04B3/32 ,  H04B1/04

CPC classification number: H04B3/32 ,  H04B1/0475

Abstract: An apparatus and method are provided for cancellation of RF interference coupling into a wired data communication link. The apparatus comprises: an input configured to provide an input signal, the input signal forming a digital representation of a signal received via the wired data communication link; an adaptive feed forward digital filter configured to filter the input signal in order to provide a feed forward filtered input signal; an adaptive feedback digital filter configured to filter a superposition signal in order to provide a feedback filtered output signal, the superposition signal representing an addition of the feed forward filtered input signal and the feedback filtered output signal; and an adjuster, configured to adjust the adaptive feed forward digital filter and the adaptive feedback digital filter based on an error signal, the error signal representing a difference between the input signal and the superposition signal.