RECEIVER AND METHOD OF RECEIVING
    12.
    发明申请

    公开(公告)号:US20170026221A1

    公开(公告)日:2017-01-26

    申请号:US15215983

    申请日:2016-07-21

    Abstract: A receiver for detecting and recovering payload data from a received signal comprises a radio frequency demodulation circuit configured to detect the received signal. The received signal has been formed and transmitted by a transmitter to carry the payload data as Orthogonal Frequency Division Multiplexed (OFDM) symbols in one or more of a plurality of time divided frames, each frame including a preamble including a plurality of bootstrap OFDM symbols. One or more of the bootstrap OFDM symbols of the preamble carrying signalling data represented as a relative cyclic shift of a signature sequence which has been combined with the one or more of the bootstrap OFDM symbols. A bootstrap processor is configured to detect the signalling data from the bootstrap OFDM symbols using an estimate of the channel transfer function determined from one or more of the bootstrap OFDM symbols, and a demodulator circuit is configured to recover the payload data from the payload OFDM symbols using the signalling data. The bootstrap processor comprises a channel shaper, which is configured to convolve a time domain copy of the signature sequence with the estimate of the channel impulse response to generate a channel shaped signature sequence, a cross-correlator and a cyclic shift detector. A cross-correlator is configured to cross-correlate the useful part of each of the one or more bootstrap OFDM symbols with the channel shaped copy of the signature sequence, and the cyclic shift detector is configured to estimate the signalling data conveyed by each of the one or more bootstrap OFDM symbols by detecting a cyclic shift of the signature sequence present in each of the one or more bootstrap OFDM symbols from a peak of the samples representing a result of the cross-correlation. Accordingly the signalling data can be detected by identifying the cyclic shift of the signature sequence by cross-correlating the signature sequence with the bootstrap OFDM symbols carrying the signature sequence in the time domain, which can provide a more efficient implementation.

    WIRELESS COMMUNICATIONS APPARATUS AND METHODS

    公开(公告)号:US20210227422A1

    公开(公告)日:2021-07-22

    申请号:US17055135

    申请日:2019-05-03

    Abstract: A method of transmitting data by a communications device, the method comprising receiving a plurality of service data units including a first service data unit and a second service data unit at a Service Data Adaptation Protocol (SDAP), service access point (SAP) according to one or more quality of service (QoS) flows, each of the QoS flows defining a quality of service for the data received from the service data units, mapping the service data units received according to the one or more QoS flows on to one or more radio bearers, each of the one or more radio bearers being defined by a packet data convergence protocol (PDCP) entity within a PDCP layer, forming the service data units into protocol data units for transmission via the radio bearer to which the corresponding QoS flow has been mapped, and transmitting the protocol data units via the corresponding radio bearer.

    METHODS AND INFRASTRUCTURE EQUIPMENT

    公开(公告)号:US20210226696A1

    公开(公告)日:2021-07-22

    申请号:US17056002

    申请日:2019-05-01

    Abstract: A method of operating a first infrastructure equipment of a wireless communications network comprising a core network part, the first infrastructure equipment, a second infrastructure equipment acting as a backhaul relay node between the first infrastructure equipment and the core network part, and a downstream wireless communications device. The method comprising receiving from the second infrastructure equipment an indication of a first set of communications resources, allocating resource elements of the first set of communications resources for receiving first data for transmission to the core network part from the downstream wireless communications device, and receiving second data transmitted by the second infrastructure equipment on one or more resource elements within a second set of communications resources, the second set of communications resources different from the first set of communications resources.

    METHODS, WIRELESS COMMUNICATIONS NETWORKS AND INFRASTRUCTURE EQUIPMENT

    公开(公告)号:US20210153296A1

    公开(公告)日:2021-05-20

    申请号:US17046325

    申请日:2019-04-12

    Abstract: A method of controlling communications within a wireless communications network is provided. The method comprises receiving, at a first infrastructure equipment acting as a donor node connected to a core network part of a wireless communications network, signals representing data from one or more others of infrastructure equipment, the data having been received at the one or more others of the infrastructure equipment from one or more communications devices or from other infrastructure equipment, and transmitting, by the first infrastructure equipment, the data from the one or more others of the infrastructure equipment to the core network part of the wireless communications network. At least one of the infrastructure equipment uses at least one spectral efficiency enhancing technique to receive the signals, the at least one spectral efficiency enhancing technique allowing the at least one infrastructure equipment to receive the signals in the backhaul communications link.

    METHODS AND INFRASTRUCTURE EQUIPMENT

    公开(公告)号:US20210099914A1

    公开(公告)日:2021-04-01

    申请号:US17040986

    申请日:2019-03-11

    Abstract: An infrastructure equipment of a wireless communications network is configured to act as a first relay node by determining an allocation of a first set of communications resources by the infrastructure equipment acting as a first relay node for another infrastructure equipment acting as a second relay node, the communications resources for transmitting uplink data from a first communications device to an infrastructure equipment connected to a core network part of the wireless communications network acting as a donor node, the allocation of the first set of communications resources for the other infrastructure equipment acting as the second relay node being based upon a donor set of communications resources allocated by the donor node for communicating the uplink data from the first communications device to the donor node via the infrastructure equipment acting as the first relay node.

    INFRASTRUCTURE EQUIPMENT, WIRELESS COMMUNICATIONS SYSTEM, COMMUNICATIONS DEVICE AND METHODS

    公开(公告)号:US20200351807A1

    公开(公告)日:2020-11-05

    申请号:US16760047

    申请日:2018-11-14

    Abstract: An infrastructure equipment for use in a wireless communications system comprising the infrastmcture equipment and one or more communications devices is provided. The infrastmcture equipment comprises controller circuitry and transceiver circuitry which are configured in combination to broadcast one or more synchronisation signals for use by the one or more communications devices to achieve synchronisation with a cell provided by the infrastmcture equipment, and to broadcast an additional synchronisation signal, the additional synchronisation signal including an indication of a status of a first communications parameter selected from a plurality of communications parameters in accordance with conditions determined by the controller circuitry.

    TELECOMMUNICATIONS APPARATUS AND METHODS
    18.
    发明申请

    公开(公告)号:US20200351779A1

    公开(公告)日:2020-11-05

    申请号:US16760044

    申请日:2018-11-08

    Abstract: A method of operating a terminal device in a wireless telecommunications system comprising the terminal device and a plurality of network access nodes, wherein the method comprises: establishing first wake-up signalling configuration information for a first network access node covering a current location for the terminal device, wherein the first wake-up signalling configuration information comprises an indication of a first wake-up signalling format to be transmitted by the first network access node in advance of transmitting a paging message to indicate the terminal device should seek to decode the paging message, and an indication of an associated first wake-up signalling validity period for the first wake-up signalling format.

    TRANSMITTER, RECEIVER AND METHODS
    19.
    发明申请

    公开(公告)号:US20200220658A1

    公开(公告)日:2020-07-09

    申请号:US16820720

    申请日:2020-03-17

    Abstract: A transmitter for transmitting data to communications devices via a wireless access. The transmitter including modulator circuitry configured to receive modulation symbols of a segment and to rotate each modulation symbol by an angle dependent on a choice of modulation scheme, and receive each of the segments of rotated modulation symbols and for each segment to separate real and imaginary components of the rotated modulation symbols for the segment and to interleave the real components of the rotated modulation symbols of the segment differently to the imaginary components of the rotated modulation symbols of the segment. The circuitry also is configured to recombine the real and imaginary interleaved components of the rotated modulation symbols of each segment and to form from the real and imaginary components modulation cells.

    COMMUNICATION DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODS

    公开(公告)号:US20200044789A1

    公开(公告)日:2020-02-06

    申请号:US16476306

    申请日:2017-12-20

    Abstract: A communications device comprising receiver circuitry, transmitter circuitry and controller circuitry controlling the transmitter circuitry and the receiver circuitry to receive data in accordance with an automatic repeat request (ARQ) type protocol in which the data is received as a plurality of encoded data packets encoded with an error correction code and the transmitter circuitry transmits a feedback signal depending on whether each of the data encoded packets is estimated as having been decoded successfully by the receiver circuitry. The controller circuitry is configured to evaluate a quality measure of each encoded data packet and in response to the evaluated quality measure to transmit an early indication of the feedback signal to the wireless communications network, before the encoded data packet has been decoded by the error correction decoder.

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