公开(公告)号：US12101189B2

公开(公告)日：2024-09-24

申请号：US17379977

申请日：2021-07-19

Applicant: KT CORPORATION

Inventor： Kyujin Park ,  Woo-jin Choi

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/1812 ,  H04L5/00 ,  H04L27/00 ,  H04W72/1268 ,  H04W72/21

CPC classification number: H04L1/1812 ,  H04L1/18 ,  H04L5/0055 ,  H04L27/00 ,  H04W72/1268 ,  H04W72/21

Abstract: Provided is a method for scheduling an uplink control channel (PUCCH) in a next generation/5G wireless access network. The method of a terminal for scheduling a PUCCH may include: receiving, from a base station, timing relationship setting information between a downlink data channel (PDSCH) and a PUCCH; and scheduling the PUCCH on the basis of the timing relationship setting information.

公开(公告)号：US12088436B2

公开(公告)日：2024-09-10

申请号：US18328792

申请日：2023-06-05

Applicant: Sony Group Corporation

Inventor： Ryota Kimura ,  Ryo Sawai

IPC: H04L25/03 ,  H04L25/06 ,  H04L27/00 ,  H04L27/26 ,  H04L27/34 ,  H04W28/18 ,  H04W72/04 ,  H04W72/044 ,  H04W72/20

CPC classification number: H04L25/03834 ,  H04L25/068 ,  H04L27/00 ,  H04L27/34 ,  H04W28/18 ,  H04W72/04 ,  H04W72/044 ,  H04W72/20 ,  H04L25/03006 ,  H04L27/2626

Abstract: [Object] To adaptively adjust a symbol interval in accordance with a communication environment.
[Solution] An apparatus including: a communication unit configured to perform radio communication; and a control unit configured to perform control such that control information for adjusting a symbol interval in a complex symbol sequence into which a bit sequence is converted is transmitted from the communication unit to a terminal, the control information being set on a basis of a predetermined condition.

公开(公告)号：US12074623B2

公开(公告)日：2024-08-27

申请号：US18144342

申请日：2023-05-08

Applicant: Rambus Inc.

Inventor： Masum Hossain ,  Nhat Nguyen ,  Yikui Jen Dong ,  Arash Zargaran-Yazd ,  Wendemagegnehu Beyene

IPC: H04B1/12 ,  H04L25/02 ,  H04L25/03 ,  H04L25/49 ,  H04L27/00 ,  H04L27/01 ,  H04L27/06

CPC classification number: H04B1/123 ,  H04B1/12 ,  H04L25/0264 ,  H04L25/03057 ,  H04L25/03076 ,  H04L25/03133 ,  H04L25/4917 ,  H04L27/00 ,  H04L27/01 ,  H04L27/06

Abstract: Decision feedback equalization (DFE) is used to help reduce inter-symbol interference (ISI) from a data signal received via a band-limited (or otherwise non-ideal) channel. A first PAM-4 DFE architecture has low latency from the output of the samplers to the application of the first DFE tap feedback to the input signal. This is accomplished by not decoding the sampler outputs in order to generate the feedback signal for the first DFE tap. Rather, weighted versions of the raw sampler outputs are applied directly to the input signal without further analog or digital processing. Additional PAM-4 DFE architectures use the current symbol in addition to previous symbol(s) to determine the DFE feedback signal. Another architecture transmits PAM-4 signaling using non-uniform pre-emphasis. The non-uniform pre-emphasis allows a speculative DFE receiver to resolve the transmitted PAM-4 signals with fewer comparators/samplers.

公开(公告)号：US12028729B2

公开(公告)日：2024-07-02

申请号：US18201284

申请日：2023-05-24

Applicant: Digital Global Systems, Inc.

Inventor： Daniel Carbajal ,  Ronald C. Dzierwa

IPC: H04W24/08 ,  H04L27/00 ,  H04W16/14 ,  H04W64/00 ,  H04W72/0453 ,  H04W76/11 ,  H04W24/02

CPC classification number: H04W24/08 ,  H04L27/00 ,  H04L27/0006 ,  H04W16/14 ,  H04W64/006 ,  H04W72/0453 ,  H04W76/11 ,  H04W24/02

Abstract: Systems, methods, and apparatus are provided for automated identification of baseline data and changes in state in a wireless communications spectrum, by identifying sources of signal emission in the spectrum by automatically detecting signals, analyzing signals, comparing signal data to historical and reference data, creating corresponding signal profiles, and determining information about the baseline data and changes in state based upon the measured and analyzed data in near real time, which is stored on each apparatus or device and/or on a remote server computer that aggregates data from each apparatus or device.

公开(公告)号：US20190207797A1

公开(公告)日：2019-07-04

申请号：US16332800

申请日：2017-10-18

Applicant: Zaichen ZHANG ,  Rong ZENG ,  Pen-Shun LU ,  Sony Corporation

Inventor： Zaichen ZHANG ,  Rong ZENG ,  Pen-shun LU

IPC: H04L27/26 ,  H04W56/00

CPC classification number: H04L27/2688 ,  H04L27/00 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2695 ,  H04W56/00 ,  H04W56/001

Abstract: Provided are a control apparatus, device and method for a wireless communication system, a signal processing apparatus and method for a mobile terminal, a mobile terminal and a wireless communication system. The control apparatus comprises: a control circuit, wherein the control circuit is configured to make a plurality of the wireless communication devices send, to a mobile terminal, a plurality of synchronous sequence signals which are different from each other. According to the control apparatus, device and method, the signal processing apparatus and method, the mobile terminal and the wireless communication system in the present disclosure, the influence of a large-carrier frequency offset on the performance of a timing synchronization system can be effectively suppressed and eliminated.

公开(公告)号：US20190052295A1

公开(公告)日：2019-02-14

申请号：US16160521

申请日：2018-10-15

Applicant: Innophase, Inc.

Inventor： Yang Xu ,  Sara Munoz Hermoso

IPC: H04B1/16 ,  H04J1/02 ,  H04L27/06 ,  H04L27/22 ,  H04L27/14 ,  H04L27/38 ,  H04W4/80

CPC classification number: H04B1/16 ,  H04B14/008 ,  H04J1/02 ,  H04L27/00 ,  H04L27/06 ,  H04L27/14 ,  H04L27/22 ,  H04L27/233 ,  H04L27/38 ,  H04L27/3845 ,  H04W4/80 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/144 ,  Y02D70/40

Abstract: Circuitry and methods are described for digital signal demodulation. In a configurable receiver, a method includes receiving a radio frequency signal at the configurable receiver, operating the configurable receiver in a first mode, the first mode including providing the radio frequency signal to an amplitude detection circuit to determine an amplitude, providing the radio frequency signal to a phase detection circuit to determine a phase, and providing the amplitude and phase to a coordinate rotation digital computer (CORDIC) logic circuit, and operating the configurable receiver in a low power mode upon receiving an indication to selectively disable the amplitude detection circuit, the low power mode including providing the radio frequency signal to the phase detection circuit to determine the phase, and providing the phase and a predetermined constant value in lieu of the amplitude to the CORDIC logic circuit.

公开(公告)号：US20180270012A1

公开(公告)日：2018-09-20

申请号：US15988195

申请日：2018-05-24

Applicant: KYOCERA CORPORATION

Inventor： Fangwei TONG ,  Masato FUJISHIRO ,  Chiharu YAMAZAKI

IPC: H04L1/00 ,  H04B7/06 ,  H04L27/38

CPC classification number: H04L1/0026 ,  H04B7/0626 ,  H04L1/00 ,  H04L1/0003 ,  H04L1/0045 ,  H04L1/0063 ,  H04L5/02 ,  H04L27/00 ,  H04L27/38

Abstract: A transmission device (100) transmits transmission information to a reception device (200) via a radio channel. The transmission device (100) includes: a grouping unit (110) configured to divide the transmission information into a plurality of information groups; an error detection code adding unit (120) configured to add an error detection code to each of the plurality of information groups; and a transmission processing unit (140) configured to perform a process of transmitting the plurality of information groups to the reception device (200). The transmission processing unit (140) performs, for each information group included in the plurality of information groups, a transmission process by using a method having different error tolerance on the radio channel.

公开(公告)号：US10063368B2

公开(公告)日：2018-08-28

申请号：US15642571

申请日：2017-07-06

Applicant: R.F. Architecture Co., Ltd.

Inventor： Shinichi Morisaka

IPC: H03D3/24 ,  H04L7/033 ,  H04B1/40 ,  H03L7/091 ,  H03L7/099

CPC classification number: H04L7/0331 ,  H03B21/01 ,  H03L7/06 ,  H03L7/091 ,  H03L7/099 ,  H03L7/16 ,  H03L7/185 ,  H03L2207/50 ,  H04B1/40 ,  H04B1/403 ,  H04L5/0007 ,  H04L27/00 ,  H04L2027/0024 ,  H04L2027/0026 ,  H04L2027/0053 ,  H04L2027/0065

Abstract: A phase locked loop circuit that is capable of stabilizing a frequency of an input signal even in the case where the frequency is unstable is provided. The phase locked loop circuit that corrects a frequency error of an output signal from an oscillator to a predetermined target frequency; an ADC that converts the output signal to a digital signal; reference frequency output means that outputs a reference frequency signal; frequency error detection means that detects the frequency error based on the digital signal and the reference frequency signal; correction signal generation means that generates an error correction signal based on the frequency error; a DAC that converts the error correction signal to an analog signal; and a multiplier that multiplies the output signal by the analog signal to correct the frequency error of the output signal.

公开(公告)号：US20180167243A1

公开(公告)日：2018-06-14

申请号：US15894462

申请日：2018-02-12

Applicant: TM IP HOLDINGS, LLC

Inventor： Richard C. Gerdes

IPC: H04L27/144

CPC classification number: H04L27/144 ,  H04J11/004 ,  H04L27/00 ,  H04L27/0008 ,  H04L27/0014 ,  H04L27/122

Abstract: Methods, systems, and apparatus for detecting a center frequency of an input signal, the input signal including a carrier signal modulated with a modulation signal. Detecting a frequency of a second signal. Determining a difference signal between the center frequency of the input signal and the frequency of the second signal. Modifying the frequency of the second signal based on the difference signal to provide the carrier signal. And, outputting the carrier signal.

公开(公告)号：US20180145740A1

公开(公告)日：2018-05-24

申请号：US15568512

申请日：2015-04-30

Applicant: Mitsubishi Electric Corporation

Inventor： Shigenori TANI ,  Hiroyasu SANO ,  Katsuyuki MOTOYOSHI ,  Akinori FUJIMURA ,  Futaba EJIMA ,  Kyoichiro IZUMI

IPC: H04B7/08 ,  H04L1/06 ,  H04L1/00 ,  H04B7/10 ,  H04W24/02 ,  H04W72/08

CPC classification number: H04B7/082 ,  H04B7/10 ,  H04L1/0003 ,  H04L1/06 ,  H04L27/00 ,  H04W24/02 ,  H04W72/085

Abstract: A transmitting station includes a transmitting antenna whose orientation direction is changeable, and a controller that controls the orientation direction of the transmitting antenna according to an orientation direction of the transmitting antenna determined together with receiving stations to receive data transmitted from the transmitting antenna based on estimate values of received signal quality at receiving stations that are candidates for receiving stations to receive data transmitted from the transmitting antenna. The transmitting station can maintain received signal quality at a plurality of receiving stations at a desired value or more in a data transmission system.