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    WIRELESS TELECOMMUNICATIONS NETWORK
    2.
    发明公开
    WIRELESS TELECOMMUNICATIONS NETWORK 审中-公开

    公开(公告)号：US20230308200A1

    公开(公告)日：2023-09-28

    申请号：US18251467

    申请日：2021-10-21

    Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

    Inventor： Linglong DAI ,  Hao JIANG ,  Jianjun LI ,  Mo HAO ,  Richard MACKENZIE ,  Arman SHOJAEIFARD

    IPC: H04B17/391

    CPC classification number: H04B17/3913 ,  H04B17/3912

    Abstract: A method of controlling transmission of a wireless signal in a wireless telecommunications network including a transmitting node, a receiving node, and an Intelligent Reflective Surface (IRS), the transmitting node including a processor operating a first neural network that inputs an input bit sequence and outputs the wireless signal and a transmitter to transmit the wireless signal output by the first neural network, the IRS includes a reflective surface for reflecting the wireless signal transmitted by the transmitter and further includes a processor for applying a phase change to the wireless signal according to a phase shift matrix, and the receiving node includes a receiver for receiving an accumulated wireless signal transmitted by the transmitter and reflected off the reflective surface and a processor operating a second neural network that inputs the received accumulated wireless signal and outputs an output bit sequence.

    CHANNEL ESTIMATION IN MIMO SYSTEMS
    3.
    发明申请
    CHANNEL ESTIMATION IN MIMO SYSTEMS 有权

    公开(公告)号：US20220190899A1

    公开(公告)日：2022-06-16

    申请号：US17310839

    申请日：2020-01-23

    Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

    Inventor： Linglong DAI ,  Jingbo TAN ,  Bichai WANG ,  Richard MACKENZIE ,  Mo HAO

    IPC: H04B7/06 ,  H04B7/0417 ,  H04L25/02 ,  H04B7/0456

    Abstract: A method of performing channel estimation in a multiple-input-multiple-output (MIMO) communication system comprising a downlink device and an uplink device arranged to communicate over a communication channel, the method including at the uplink device: analyzing a first channel vector representing channel gains between the downlink device and a first antenna of the uplink device in the angular domain to identify a set of angular domain support points; generating from the set of angular domain support points a value vector; and feeding back from the uplink device to the downlink device an indication of the value vector; and at the downlink device: analyzing a second channel vector representing channel gains between the downlink device and a second antenna of the uplink device; generating a transmit steering matrix; and generating an estimate of the first channel vector.

    METHOD AND APPARATUS FOR CONFIGURING MULTI-LEVEL CELLS OR CELL CLUSTERS AND COMMUNICATIONS SYSTEMS
    4.
    发明申请
    METHOD AND APPARATUS FOR CONFIGURING MULTI-LEVEL CELLS OR CELL CLUSTERS AND COMMUNICATIONS SYSTEMS 审中-公开

    公开(公告)号：US20190246284A1

    公开(公告)日：2019-08-08

    申请号：US16336256

    申请日：2017-09-22

    Applicant: British Telecommunications Public Limited Company

    Inventor： Richard MACKENZIE ,  Yang YANG ,  Mo HAO

    IPC: H04W16/10 ,  H04W16/32

    CPC classification number: H04W16/10 ,  H04W16/32 ,  H04W92/20

    Abstract: Embodiments of the present disclosure provide a method and apparatus for configuring multi-level cells or cell clusters and a communications system. The method includes: exchanging by a base station with one or more other base stations or cell cluster heads in the same level to obtain first information; receiving, by the base station, second information reported by one or more base stations or cell cluster heads in the lower level; configuring one or more cells in the lower level into a cell cluster by the base station according to the first information and the second information, and determining a cluster head of the cell cluster; and performing information transmission with the cluster head of the cell cluster. Hence, not only interference between equipment in the cell of the upper level and the cell cluster of the lower level but also interference between equipment out of the cell of the upper level and the cell cluster of the lower level are taken into account, thereby further reducing interference of the cells or cell clusters of various levels, and improving reliabilities and expandability of the cells or cell clusters.

    WIRELESS TELECOMMUNICATIONS NETWORK
    6.
    发明申请
    WIRELESS TELECOMMUNICATIONS NETWORK 有权

    公开(公告)号：US20210250938A1

    公开(公告)日：2021-08-12

    申请号：US17250175

    申请日：2019-06-04

    Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

    Inventor： Linglong DAI ,  Wenqian SHEN ,  Jianjun LI ,  Richard MACKENZIE ,  Mo HAO

    IPC: H04W72/04 ,  H04B7/06 ,  H04W16/28 ,  H04B7/0408

    Abstract: This disclosure provides a method in a wireless telecommunications network, and a wireless telecommunications network node for implementing the method, the network including a transmitter having an overall coverage area and a plurality of User Equipment (UE) within the transmitter's overall coverage area, the method including receiving data indicating a first count of UEs of the plurality of UEs disposed in a first section of the transmitter's overall coverage area and further indicating a second count of UEs of the plurality of UEs disposed in a second section of the transmitter's overall coverage area; comparing the first and second counts to a predetermined threshold; and transmitting a first data beam having a first beam coverage area and a second data beam having a second beam coverage area, wherein a magnitude of the first beam coverage area is based on the comparison of the first count to the predetermined threshold and a magnitude of the second beam coverage area is based on upon the comparison of the second count to the predetermined threshold.

    MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION AND RECEPTION
    8.
    发明申请
    MULTIPLE-INPUT MULTIPLE-OUTPUT TRANSMISSION AND RECEPTION 有权

    公开(公告)号：US20220190888A1

    公开(公告)日：2022-06-16

    申请号：US17594354

    申请日：2020-04-06

    Applicant: British Telecommunications public limited company

    Inventor： Linglong DAI ,  Talha MIR ,  Muhammad SIDDIQI ,  Mo HAO ,  Richard MACKENZIE

    IPC: H04B7/0426 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08 ,  H04W52/02 ,  H04B7/185

    Abstract: Multiple-Input Multiple-Output (MIMO) transmitters, receivers and transceivers are disclosed, as well as other associated devices, systems and methods. In particular, aspects and embodiments of the disclosure relate to MIMO transmitters, receivers and transceivers implemented as modules of relay devices for signals transmitted to and/or from base-stations and/or mobile-stations, in particular when such devices are implemented on mobile and/or aerial vehicles, and in particular for transmitting, receiving and/or forwarding wireless communication signals at frequencies in what is termed the “millimeter-wave band”. In such devices, a power control unit is configured to determine an energy availability measure and/or a power demand measure and, in response, cause a switching unit to connect a plurality of RF chains to a plurality of antenna elements in different states.

    MIMO SYSTEMS
    9.
    发明申请
    MIMO SYSTEMS 有权

    公开(公告)号：US20210344393A1

    公开(公告)日：2021-11-04

    申请号：US17250977

    申请日：2019-09-13

    Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

    Inventor： Linglong DAI ,  Bichai WANG ,  Richard MACKENZIE ,  Mo HAO ,  Xinyu GAO

    IPC: H04B7/0456 ,  H01Q3/24 ,  H01Q3/38 ,  H01Q15/02

    Abstract: According to the present disclosure there is provided a multiple-input-multiple-output (MIMO) transmitter for transmitting wireless communication signals over a communication channel to a receiver, the transmitter including a digital signal processor configured to perform pre-coding on a plurality Ns of data streams; a plurality NRF of radio-frequency (RF) chains each configured to pass a pre-coded data stream from the digital signal processor to generate a signal representing that data stream; a lens antenna array comprising an array of NT antenna elements; and a selecting unit coupled between the plurality NRF of RF chains and the lens antenna array, the selecting unit including a plurality of separate coupling units each configured to couple a respective RF chain to a selective sub-array of NTBRF antenna elements concurrently for transmitting the signal representing the data stream passed through that RF chain.

    RESOURCE ALLOCATION METHOD AND APPARATUS
    10.
    发明申请
    RESOURCE ALLOCATION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20190215829A1

    公开(公告)日：2019-07-11

    申请号：US16336304

    申请日：2017-09-22

    Applicant: British Telecommunications Public Limited Company

    Inventor： Richard MACKENZIE ,  Yang YANG ,  Mo HAO

    IPC: H04W72/04 ,  H04W72/08 ,  H04W16/12 ,  H04W16/18 ,  H04W28/16

    CPC classification number: H04W72/0426 ,  H04W16/12 ,  H04W16/18 ,  H04W16/32 ,  H04W28/16 ,  H04W72/082

    Abstract: Embodiments of the present disclosure provide a resource allocation method and apparatus for a small cell cluster and a communications system. The resource allocation method includes: exchanging by the base station of the upper level with another base station of the upper level, to obtain information on resources and/or interference of the other base station of the upper level; receiving information by the base station of the upper level at least from the cluster head of the SCC, to obtain information on resources and/or interference of the base station of the upper level; and allocating resources for the small cell cluster by the base station of the upper level based on the obtained information on resources and/or interference of the other base station of the upper level and the information on resources and/or interference of the base station of the upper level. According to the embodiments, interference coordination may be performed efficiently on a small cell cluster at an edge of the base station of the higher lever, so as to lower the interference to the small cell cluster, and the expandability of the network may be improved.

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