公开(公告)号：US12218785B2

公开(公告)日：2025-02-04

申请号：US18033670

申请日：2021-09-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joonho Cho ,  Jeonghoon Choi

IPC: H04L25/03 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26

Abstract: Provided are a discrete Fourier transform (DFT)-spread orthogonal frequency division multiplexing (OFDM) transmitter and transmission method, and a DFT-spread OFDM receiver and reception method which may receive signals transmitted thereby, in which a constellation rotation angle and a frequency domain spectrum shaping vector are designed such that a PAPR may be easily traded off with frequency efficiency even without inter-symbol interference. The DFT-spread OFDM transmitter includes a constellation rotation unit constellation-rotating a symbol vector including M pulse amplitude modulation (PAM) symbols by a constellation rotation angle to generate a constellation-rotated symbol vector, a pruned DFT-spread unit spreading the constellation-rotated symbol vector by using a pruned DFT matrix to generate a pruned DFT-spread vector, a frequency domain spectrum shaping unit performing a Hadamard product on the pruned DFT-spread vector with a shaping vector to generate a frequency domain spectrum shaped vector, and a subcarrier allocation unit allocating the frequency domain spectrum shaped vector to a subcarrier in an allocated frequency range.

公开(公告)号：US10903884B2

公开(公告)日：2021-01-26

申请号：US16727391

申请日：2019-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon Shim ,  Joonho Cho ,  Hayoung Yang ,  Eunae Lee ,  Taejun Jang ,  Jonghwan Kim

IPC: H04L1/02 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04B7/0417 ,  H04B7/08

Abstract: A base station for transmitting and receiving signals in a wireless communication system is provided. The base station includes a transceiver, and at least one processor configured to obtain reception antenna weights for the base station including an array of a plurality of antennas, and transmission antenna weights for at least one user equipment (UE), convert signals received from the at least one UE through a plurality of reception paths, into beam-domain signals, based on the transmission antenna weights and the reception antenna weights, combine the converted beam-domain signals by applying predefined combining weights to the converted beam-domain signals, and obtain data from the combined signals.

公开(公告)号：US20140045426A1

公开(公告)日：2014-02-13

申请号：US13963915

申请日：2013-08-09

Applicant: Samsung Electronics Co., Ltd

Inventor： Joonho Cho

IPC: H04B5/00

CPC classification number: H04B5/00 ,  H04B5/0031 ,  H04M1/7253 ,  H04M1/72583 ,  H04W4/029 ,  H04W4/80

Abstract: The present disclosure relates to an apparatus and a method for communicating data and, more particularly, to an apparatus and a method for communicating data enabling portable terminals to transmit and receive a message by using an NFC module. According to an exemplary embodiment of the present disclosure, a method for communicating data with an external device by using an NFC (Near Field Communication) module in a portable terminal having the NFC module includes: detecting a notification event from the NFC module notifying contact of the external device; deciding whether a preregistered message to be transmitted to the external device exists in a storage unit if the notification event is detected; and controlling the NFC module to transmit the preregistered message to the external device if the registered message exists in the storage unit.

Abstract translation: 本公开涉及一种用于传送数据的装置和方法，更具体地说，涉及用于传送数据的装置和方法，所述数据使得便携式终端能够通过使用NFC模块来发送和接收消息。 根据本公开的示例性实施例，通过在具有NFC模块的便携式终端中使用NFC（近场通信）模块来与外部设备通信数据的方法包括：检测来自NFC模块的通知事件，通知事件通知 外部设备; 如果检测到通知事件，则确定在存储单元中是否存在要发送到外部设备的预注册消息; 以及如果所述注册消息存在于所述存储单元中，则控制所述NFC模块将所述预注册消息发送到所述外部设备。