MULTI-USER MULTIPLEXING OF ORTHOGONAL TIME FREQUENCY SPACE SIGNALS

    公开(公告)号:US20210126750A1

    公开(公告)日:2021-04-29

    申请号:US17139478

    申请日:2020-12-31

    摘要: A method for performing downlink transmissions from a transmitting device to multiple user devices using transmission resources from a multi-dimensional grid of resources is described. The method includes logically partitioning the transmission resources into multiple segments, assigning, to a given user device of the multiple user devices, transmission resources of one or more of the multiple segments, and performing, using at least some of the assigned transmission resources for the given user device, a downlink transmission using an orthogonal time frequency space (OTFS) transformation on data or signals to be transmitted to the given user device.

    Signal transmitting/receiving method and apparatus

    公开(公告)号:US10952169B2

    公开(公告)日:2021-03-16

    申请号:US15511621

    申请日:2015-09-15

    摘要: The present invention relates to a 5th-generation (5G) or pre-5G communication system to be provided in order to support a higher data transmission rate than a beyond 4th-generation (4G) communication system such as long term evolution (LTE). The present invention relates to a signal transmission method of a radio frequency (RF) processing device, the method comprising the steps of: generating a pulse signal including a control signal and a clock signal for obtaining synchronization with another RF processing device, which is connected through an interface; and transmitting, to the another RF processing device, at least one from among the pulse signal, a RF signal for communication with a base station, and a power signal for supplying power to the another RF processing device, wherein the clock signal and the control signal are assigned to different time units, and the pulse signal, the RF signal and the power signal are signals of different frequency bands.

    MODULAR CHANNELIZER
    4.
    发明申请

    公开(公告)号:US20210044351A1

    公开(公告)日:2021-02-11

    申请号:US17084066

    申请日:2020-10-29

    IPC分类号: H04B7/204 H04J4/00 H04B7/185

    摘要: An example of a channelizer includes a plurality of receiver circuits, an individual receiver circuit including a frequency demultiplexer that is configured to demultiplex a plurality of subchannels and a time-division demultiplexer coupled to the frequency demultiplexer, the time-division demultiplexer configured to time-division demultiplex the plurality of subchannels to provide a plurality of time-division outputs, an individual time-division output including portions of data from each of the plurality of subchannels; and a plurality of switch circuits, each configured to receive a different time-division output of the plurality of time-division outputs from the individual receiver.

    Apparatus and methods for moving relay interference mitigation in mobile e.g. cellular communication networks

    公开(公告)号:US10560955B2

    公开(公告)日:2020-02-11

    申请号:US14396282

    申请日:2013-04-22

    申请人: ELTA SYSTEMS LTD.

    摘要: A system for multicarrier cellular communication in a cellular network including a multiplicity of nodes, the system comprising, at an individual moving relay from among the multiplicity of nodes, an rBS having downlink communication, according to a protocol, with UEs served thereby; and a co-located rRM (relay Resource Manager) having a controller; wherein the controller is operative to induce the rBS to generate a selective minimally interfered region in a domain and/or to coordinate between schedulers in the relay to ensure that each user has its own time and/or frequency such that channels do not overlap because time and/or frequency are shifted to prevent the overlap.

    Method and apparatus of controlling periodic CSI reporting

    公开(公告)号:US10348385B2

    公开(公告)日:2019-07-09

    申请号:US15718177

    申请日:2017-09-28

    发明人: Dong Hyun Park

    摘要: Exemplary embodiments of the present invention relates to an apparatus and method for performing periodic CSI reporting available in a system supporting a TDD-FDD aggregation operation and an FDD-TDD aggregation operation. A periodicity and an offset for periodic reporting of channel quality indicator and precoding matrix inidcator may be determined based on the cell type of a primary serving cell for a TDD-FDD carrier aggregation and an FDD-TDD carrier aggregation.

    Passive frequency multiplexer
    9.
    发明授权

    公开(公告)号:US10199742B2

    公开(公告)日:2019-02-05

    申请号:US15133060

    申请日:2016-04-19

    申请人: RAYTHEON COMPANY

    摘要: A passive frequency multiplexer includes a beam forming network lens including a plurality of input terminals and a plurality of output terminals; a transmission line for transmitting a signal to the beam forming lens; and a plurality of couplers arranged in series along the transmission line, each of the plurality of couplers comprising an input terminal, an output terminal, and a coupled output terminal, each of the coupled output terminals of the plurality of couplers being coupled to a respective one of the input terminals of the beam forming network lens.