Common synchronization signal for sliced OFDM transmission

    公开(公告)号:US11057252B2

    公开(公告)日:2021-07-06

    申请号:US16267002

    申请日:2019-02-04

    Abstract: A transmitting apparatus for a wireless communication system, where the wireless communication system includes an OFDM based waveform corresponding to a plurality of pre-defined subcarrier spacing values including at least a first subcarrier spacing value Δf1 and at least a second subcarrier spacing value Δf2. The transmitting apparatus includes a processor and a transmitter where the processor is configured to generate a signal S1 that is a NSF time repetition of an another signal S2. A duration of the another signal S2 is 1/Δf2, NSF=Δf2/Δf1 is an integer greater than 1, and the transmitter is configured to transmit a symbol comprising S1.

    Method for arranging transmissions on a downlink carrier

    公开(公告)号:US10750505B2

    公开(公告)日:2020-08-18

    申请号:US16192056

    申请日:2018-11-15

    Abstract: A method is provided for arranging transmissions on a downlink carrier c, spanning a frequency range Fc, in a mobile radio communications system, wherein a bandwidth of Fc belongs to a set of predefined channel bandwidths in the communications system, and wherein the carrier c comprises a reference signal defined in the communications system. A configurable frequency range FRS comprising a set of time-frequency resources for comprising the reference signal of the carrier c is provided. Information associated with the configuration of the frequency range FRS is signaled to a receiver in the communications system, such that c can be deployed over a frequency range F smaller than Fc when the frequency range FRS is configured within F and any other transmissions on the carrier c are arranged to be within F.

    Methods and nodes in a wireless communication system

    公开(公告)号:US10575293B2

    公开(公告)日:2020-02-25

    申请号:US15876737

    申请日:2018-01-22

    Abstract: Methods and nodes for transmission of downlink control channel signals in a downlink frequency carrier of a wireless communication system, wherein at least two PRB pairs, configurable for the transmission of a downlink control channel have different numbers of time-frequency resource elements available for the transmission of said downlink control channel. The method comprises allocating at least one set S of PRB pairs; arranging time-frequency resource elements from said set S into an aggregation comprising at least one level; determining a set LS of aggregation levels supported for the transmission of a downlink control channel within the allocated set of PRB pairs, based on the number of time-frequency resource elements available for the transmission of a downlink control channel in PRB pairs of the set S; and transmitting the downlink control channel within said set S of PRB pairs.

    Apparatus and method for signalling of non-orthogonal transmissions

    公开(公告)号:US10476633B2

    公开(公告)日:2019-11-12

    申请号:US15674902

    申请日:2017-08-11

    Abstract: An apparatus for receiving non-orthogonal transmissions in a wireless communication system includes a processor configured to determine a first superposed symbol from a plurality of superposed symbols, based on superposition information and a first set of decoding information, wherein the first superposed symbol is corresponding to a first user equipment. The processor generates a residual signal based on the first superposed symbol and the superposition information, and determines a second superposed symbol based on the residual signal and a second set of decoding information, wherein the second superposed symbol is corresponding to a second user equipment. The superposition information comprises a quantity of the plurality of superposed symbols and an ordering of the plurality of superposed symbols.

    Information transmission method, user equipment, and base station

    公开(公告)号:US10270576B2

    公开(公告)日:2019-04-23

    申请号:US15185418

    申请日:2016-06-17

    Abstract: The present invention discloses an information transmission method, user equipment, and a base station. The method includes: receiving indication information sent by a base station, where the indication information is used to indicate a first downlink subframe in which a cell-specific reference signal (CRS) is transmitted; determining the first downlink subframe according to the indication information; and performing information transmission according to the first downlink subframe. According to the information transmission method, the user equipment, and the base station of embodiments of the present invention, indication information is used to indicate a downlink subframe in which a cell-specific reference signal is transmitted.

    Transmitting device and method thereof

    公开(公告)号:US10135648B2

    公开(公告)日:2018-11-20

    申请号:US15700701

    申请日:2017-09-11

    Abstract: The present invention relates to a transmitting device. The transmitting device comprises a processor, and a transmitter; wherein the processor is configured to generate a fractional Orthogonal Frequency Division Multiplexing (OFDM) symbol based on an adjacent OFDM symbol, wherein the fractional OFDM symbol is a cyclic extension of the adjacent OFDM symbol; wherein the transmitter is configured to transmit a multicarrier signal comprising the fractional OFDM symbol and the adjacent OFDM symbol. Furthermore, the present invention also relates to a corresponding method, a multicarrier wireless communication system comprising such a transmitting device, a computer program, and a computer program product.

    Facilitating Synchronization Between a Base Station and a User Equipment

    公开(公告)号:US20180124721A1

    公开(公告)日:2018-05-03

    申请号:US15856871

    申请日:2017-12-28

    Inventor: Fredrik Berggren

    Abstract: Methods and apparatus are provided for facilitating synchronization between a base station (BS) and a user equipment (UE) in a mobile communication system. The UE receives a synchronization signal originated by the BS. The synchronization signal is encoded with a selected cyclically permutable (CP) codeword. Encoding of the synchronization signal is facilitated by a repetitive cyclically permutable (RCP) codeword derivable from the selected CP codeword. The RCP codeword has a plurality of codeword elements each associated with a value, the value of at least one codeword element in the RCP codeword being repeated in another codeword element position in the RCP codeword. And the synchronization signal is decoded in accordance with repetitive structure of the RCP codeword.

    Transmitter Device, Receiver Device and Methods Thereof

    公开(公告)号:US20180076938A1

    公开(公告)日:2018-03-15

    申请号:US15806159

    申请日:2017-11-07

    Abstract: Embodiments relate to a transmitter device and a receiver device. The transmitter device comprises a processer configured to: map at least one first signal to a first subframe, map at least one second signal to a second subframe having a variable time offset in relation to the first subframe; and a transceiver configured to transmit the first signal in the first subframe, transmit the second signal in the second subframe. The receiver device comprises a receiving device configured to receive a first signal transmitted in a first subframe, and receive a second signal transmitted in a second subframe having a variable time offset in relation to the first subframe; and a processor configured to process the received first signal, and process the received second signal. Furthermore, the embodiments also relate to corresponding methods, a computer program, and a computer program product.

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