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1. 发明申请

US20190089408A1 METHOD AND APPARATUS FOR TRANSMITTING DATA OVER A PLURALITY OF PAIRS OF WIRES 审中-公开
公开(公告)号：US20190089408A1
公开(公告)日：2019-03-21
申请号：US16088588
申请日：2017-03-30
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Leslie HUMPHREY , Anas AL RAWI
IPC分类号： H04B3/50 , H04L25/02 , H04B3/32
摘要： 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.

2. 发明申请

US20170244446A1 METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNALS OVER PAIRS OF WIRES 审中-公开
公开(公告)号：US20170244446A1
公开(公告)日：2017-08-24
申请号：US15515403
申请日：2015-09-29
申请人： British Telecommunications Public Limited Company
发明人： Anas AL RAWI , Leslie HUMPHREY , Trevor LINNEY , Ian HORSLEY
IPC分类号： H04B3/32 , H04L5/00
CPC分类号： H04B3/32 , H04J2013/0081 , H04L5/0007 , H04L5/0048 , H04L27/2602 , H04M11/062
摘要： 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.

3. 发明申请

US20210111754A1 METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER WIRE CONNECTIONS 有权
公开(公告)号：US20210111754A1
公开(公告)日：2021-04-15
申请号：US16497539
申请日：2018-03-28
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Anas AL RAWI , Ian HORSLEY
IPC分类号： H04B3/32 , H04M11/06
摘要： 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.

4. 发明申请

US20190288744A1 METHOD AND APPARATUS FOR OPERATING A DIGITAL SUBSCRIBER LINE ARRANGEMENT 审中-公开
公开(公告)号：US20190288744A1
公开(公告)日：2019-09-19
申请号：US16348043
申请日：2017-11-07
申请人： British Telecommunications Public Limited Company
发明人： Ian HORSLEY , Trevor LINNEY , Leslie HUMPHREY , Anas AL RAWI
IPC分类号： H04B3/54 , H04B3/56 , H04B3/32 , H04M11/06
摘要： 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.

5. 发明申请

US20200350951A1 METHOD AND APPARATUS FOR TRANSMITTING DATA IN A COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20200350951A1
公开(公告)日：2020-11-05
申请号：US15733353
申请日：2019-01-02
申请人： British Telecommunications Public Limited Company
发明人： Liam STIGANT , Anas AL RAWI , Trevor LINNEY , Leslie HUMPHREY
IPC分类号： H04B3/32 , H04M3/34 , H04B3/487 , H04M11/06
摘要： 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.

6. 发明申请

US20200028660A1 METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER A WIRE CONNECTION 审中-公开
公开(公告)号：US20200028660A1
公开(公告)日：2020-01-23
申请号：US16497549
申请日：2018-03-28
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Anas AL RAWI , Ian HORSLEY
IPC分类号： H04L5/20 , H04B3/32 , H04M11/06
摘要： 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.

7. 发明申请

US20180062700A1 METHOD AND APPARATUS FOR TRANSMITTING DATA IN DIFFERENTIAL AND PHANTOM MODE IN VECTORING DSL 审中-公开
公开(公告)号：US20180062700A1
公开(公告)日：2018-03-01
申请号：US15552957
申请日：2016-02-26
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Anas AL RAWI , Leslie HUMPHREY
IPC分类号： H04B3/32 , H04L25/03
CPC分类号： H04B3/32 , H04J1/12 , H04J3/10 , H04L25/0228 , H04L25/03006 , H04L25/03885
摘要： 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.

8. 发明申请

US20210111755A1 METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER WIRE CONNECTIONS 有权
公开(公告)号：US20210111755A1
公开(公告)日：2021-04-15
申请号：US16497576
申请日：2018-04-03
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Anas AL RAWI , Leslie HUMPHREY , Trevor LINNEY
IPC分类号： H04B3/32 , H04B3/487 , H04B3/04 , H04L5/14 , H04M11/06
摘要： A method and apparatus for transmitting data from a transmitter device to one or more receiver devices connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections and a further wire connection at different tones, the method comprising: for each tone, measuring electromagnetic coupling between the further wire connection and each of the wire connections and using the measurements, identifying a wire connection that most strongly receives crosstalk interference from the further wire connection; based on the identifications, for each tones, allocating signals transmitted on the further wire connection as supporting signals for a particular wire connection; transmitting a first signal onto the particular wire connection that has been allocated a supporting signal; and transmitting a second signal onto the further wire connection, thereby to cause crosstalk interference in the particular wire connection transmitting the first signal.

9. 发明申请

US20200021331A1 METHOD AND APPARATUS FOR TRANSMITTING SIGNALS OVER WIRE CONNECTIONS 审中-公开
公开(公告)号：US20200021331A1
公开(公告)日：2020-01-16
申请号：US16497599
申请日：2018-04-03
申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人： Anas AL RAWI , Leslie HUMPHREY , Trevor LINNEY
IPC分类号： H04B3/32 , H04B3/487 , H04M11/06 , H04L5/20
摘要： A method and apparatus for transmitting data from a transmitter device to one or more receiver devices connected to the transmitter device via a respective wire connection, the transmitter device being operable to transmit signals onto the wire connections and a further wire connection at different tones, the method comprising: for each tone, allocating signals transmitted on the further wire connection as supporting signals for a particular wire connection, and measuring electromagnetic coupling between the further wire connection and that particular wire connection; using the measurements, determining a power allocation for transmitting a supporting signal on the further wire connection; for one or more of the tones: transmitting a signal onto the particular wire connection, and transmitting a supporting signal onto the further wire connection at the determined transmission power, thereby to cause crosstalk interference in the particular wire connection.

10. 发明申请

US20190222257A1 METHOD AND APPARATUS FOR TRANSMITTING DATA OVER METALLIC WIRE PAIRS 审中-公开
公开(公告)号：US20190222257A1
公开(公告)日：2019-07-18
申请号：US16329523
申请日：2017-08-29
申请人： British Telecommunications Public Limited Company
发明人： Anas AL RAWI , Christopher BOTHAM
IPC分类号： H04B3/32 , H04B3/487 , H04L5/20 , H04L5/14
CPC分类号： H04B3/32 , H04B3/487 , H04B3/50 , H04B7/02 , H04L5/14 , H04L5/20 , H04L25/085
摘要： A method of transmitting, using a discrete multi-tone technique, data between a first and a second transceiver over a plurality of metallic pairs connected between the first and second transceivers, providing a plurality of transmission channels, is disclosed.

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