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公开(公告)号：US20190089408A1
公开(公告)日：2019-03-21
申请号：US16088588
申请日：2017-03-30
Inventor： Leslie HUMPHREY , Anas AL RAWI
Abstract: A system for transmitting data between two transceivers comprises a first transceiver (100e) connected to a second transceiver (100f) by means of a connection 41b comprising a plurality of pairs of wires. Each transceiver comprises a transmitter portion and a receiver portion. The transmitter portion comprises a transmitter for transmitting a set of data signals over the pairs of wires each pair of wires having a nearside end and a distal end, the nearside ends being connected to the transmitter and at least some of the distal ends being connected to the receiver portion of the other transmitter (100e), the data signals comprising a first subset of data signals and a second subset of data signals. The transmitter comprises: an orthogonal discrete coding transformation unit and an inverse fast Fourier transformation unit, the orthogonal discrete coding transformation unit being operable to generate, in combination with the inverse fast Fourier transformation unit, a first set of transmission signals, by combining the data signals in the first subset of data signals using an orthogonal discrete coding transformation and then transforming these into corresponding time domain signals using an inverse fast Fourier transformation, the inverse fast Fourier transformation unit being additionally operable to generate a second set of transmission signals by transforming each data signal in the second subset of data signals into the time domain to form the second set of transmission signals; wherein the transmitter further comprises an analogue front end unit for generating wire driving signals derived from the transmission signals and a series of driving transformers, each of which is connected to the near ends of the wires of a respective one of the pairs of wires, and each driving transformer includes a centre tap connected to receive a driving signal derived from a respective one of the first set of transmission signals, whereby each of the transmission signals in the first set of transmission signals is transmitted in a common mode over a respective one of the plurality of pairs of wires and each of the transmission signals in the second set of transmission signals is transmitted over a respective one of the plurality of pairs of wires in a differential mode.
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公开(公告)号：US20170244446A1
公开(公告)日：2017-08-24
申请号：US15515403
申请日：2015-09-29
Inventor： Anas AL RAWI , Leslie HUMPHREY , Trevor LINNEY , Ian HORSLEY
CPC classification number: H04B3/32 , H04J2013/0081 , H04L5/0007 , H04L5/0048 , H04L27/2602 , H04M11/062
Abstract: A method of transmitting data from a transmitter device to a plurality of receiver devices each of which is connected to the transmitter device via a respective wire connection the method comprising transmitting a common signal onto all or both of the respective wire connections and using a multiple access technique to enable respective virtual data channels to be generated for transmitting data from the transmitter device to each of the receiver devices via its own respective virtual data channel.
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公开(公告)号：US20210111754A1
公开(公告)日：2021-04-15
申请号：US16497539
申请日：2018-03-28
Inventor： Anas AL RAWI , Ian HORSLEY
Abstract: A method and apparatus for transmitting data from a transmitter device to one or more receiver devices, each of which is connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections over different channels, the method comprising, for each channel: determining a value of a first function which is a function of a power mask for transmitting the data over the channels; determining a value of a second function which is a function of an upper bound for a channel capacity of the channel; determining a value of a third function, the third function being a function of the first and second functions; using the determined value of the third function, determining a transmission power for that channel; and transmitting, by the transmitter device, data over that channel at the transmission power determined for that channel.
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公开(公告)号：US20190288744A1
公开(公告)日：2019-09-19
申请号：US16348043
申请日：2017-11-07
Inventor： Ian HORSLEY , Trevor LINNEY , Leslie HUMPHREY , Anas AL RAWI
Abstract: An aggregation device is arranged to receive a plurality of lines each of which is connected to a user premises and wherein one of the user premises is a multi-terminating-point enabled premises and includes a splitter device connected to the line and at least two distinct terminating points each of which is connected to the splitter device via an in-premises connection and is operable to terminate a two part connection between the respective terminating point and the aggregation device via the splitter device, and the aggregation device includes a transmitter portion, a memory, determination means, and selection means.
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公开(公告)号：US20240061096A1
公开(公告)日：2024-02-22
申请号：US18260509
申请日：2021-12-17
Inventor： Anas AL RAWI , Christopher BOTHAM , Francis SCAHILL , Simon RINGLAND
Abstract: There is herein provided a provided a method of wireless sensing that can include, at a transmitter which is a component of a transceiver device, transmitting a wireless signal such that the transmitted wireless signal is scattered by an object so as to produce a scattered signal, at a receiver which is a component of the transceiver device, receiving the scattered signal, performing processing on the wireless signal before it is transmitted and/or on the received scattered signal, the processing including an indication of self-coupling occurring at the transceiver device, following the processing, using the received signal to determine information relating to the object, the information including one or more of: a location of the object; a direction of movement of the object; or a speed of the object.
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公开(公告)号：US20200350951A1
公开(公告)日：2020-11-05
申请号：US15733353
申请日：2019-01-02
Inventor： Liam STIGANT , Anas AL RAWI , Trevor LINNEY , Leslie HUMPHREY
Abstract: A method and apparatus for transmitting data in a communication system including a transmitter and receivers, each receiver being connected to the transmitter via a communication channel, the method including: precoding the data for transmission on the channels to provide first precoded data; using the first precoded data, for each channel, computing a number of bits to be allocated to that channel; determining that the bit allocation does not satisfy one or more criteria; ranking the channels in an order based on channel properties; discarding for use as a direct channel, one or more channels based on the ranking; precoding the data for transmission on the channels accounting for the discarded channels to provide second precoded data; and transmitting, by the transmitter, the second precoded data on the channels.
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公开(公告)号：US20200028660A1
公开(公告)日：2020-01-23
申请号：US16497549
申请日：2018-03-28
Inventor： Anas AL RAWI , Ian HORSLEY
Abstract: A method and apparatus for transmitting data from a transmitter device to one or more receiver devices, each of the one or more receiver devices being connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections over one or more different channels, the method comprising, for each of the one or more different channels: determining a value of a function S˜mj,j, dependent on an upper bound for a channel capacity of the one or more channels and a channel gain of the jth channel; determining a transmission power Smj,j, for transmitting data along that channel based on S˜mj,j; and transmitting, by the transmitter device, data over that channel to one or more of the receiver devices, the data being transmitted at the transmission power Smj,j determined for that channel.
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8.发明申请
公开(公告)号：US20180062700A1
公开(公告)日：2018-03-01
申请号：US15552957
申请日：2016-02-26
Inventor： Anas AL RAWI , Leslie HUMPHREY
CPC classification number: H04B3/32 , H04J1/12 , H04J3/10 , H04L25/0228 , H04L25/03006 , H04L25/03885
Abstract: A transmitter device 16 for transmitting data to a plurality of receiver devices 51, 52, 53, each of which is connected to the transmitter device via at least one respective pair of wires 21, 22, 23, each receiver device being operable to receive signals detected as a change over time in the potential difference across the local ends of each respective pair of wires extending between the receiver device and the transmitter device, the transmitter device being operable to transmit signals onto the wires extending between the transmitter device and the plurality of receiver devices in a plurality of different modes, over a plurality of different channels, the different modes including phantom and differential modes and the different channels including a first set of phantom channels, the transmitter comprising a phantom channel selector 1690 for selecting a second set of one or more phantom channels from the first set, the second set being a proper subset of the first set comprising one or more of the phantom channels of the first set, the selection being made in dependence upon the cross-talk coupling between the phantom channels of the first set and the reception of signals at each of the receivers detected as a change over time in the potential difference across the local ends of the respective pair of wires extending between the respective receiver device and the transmitter device; and a connector 1670 for connecting the selected phantom channels to the transmitter such that the transmitter is able to transmit signals from the transmitter onto the phantom channel or channels of the second set of phantom channels.
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公开(公告)号：US20240305340A1
公开(公告)日：2024-09-12
申请号：US18262601
申请日：2021-12-24
Inventor： Anas AL RAWI , Yangyishi ZHANG
IPC: H04B7/0456 , H04B7/06
CPC classification number: H04B7/0456 , H04B7/0608
Abstract: There is herein disclosed a method of processing data for transmission over a communication system including a transmitter including a plurality of transmitter antennas and a plurality of receiver antennas, each of the plurality of receiver antennas connected to the transmitter via a respective communication channel, the method including precoding the data prior to transmission to generate precoded data, wherein precoding the data includes precoding the data to reduce an amplitude of a data element of the data, for receipt by a receiver antenna of the plurality of receiver antennas, to a predefined numerical value, so as to reduce an amplitude of the precoded data received at the receiver antenna.
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公开(公告)号：US20210105042A1
公开(公告)日：2021-04-08
申请号：US16497557
申请日：2018-03-28
Inventor： Anas AL RAWI , Ian HORSLEY
Abstract: A method and apparatus of transmitting data from a transmitter device to one or more receiver devices, each of the one or more receiver devices being connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections over one or more different channels, the method comprising: iteratively performing steps (i) to (iii) until one or more criteria are satisfied, thereby determining current transmission powers for transmitting data, wherein: step (i) comprises determining values of a first function depending on one or more channel properties; step (ii) comprises, using the determined value of the first function, determining transmission powers for transmitting data; and step (iii) comprises determining whether or not the determined transmission powers satisfy one or more criteria; and thereafter transmitting data at the current transmission powers.
