公开(公告)号：US11799533B2

公开(公告)日：2023-10-24

申请号：US16483568

申请日：2018-07-25

Applicant: APPLE INC.

Inventor： Yushu Zhang ,  Gang Xiong ,  Guotong Wang ,  Alexei Davydov ,  Paul C Wei

IPC: H04B7/0456 ,  H04B7/06 ,  H04W76/27 ,  H04B15/06 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26 ,  H04W8/24 ,  H04W88/06 ,  H04W88/10 ,  H04W72/23

CPC classification number: H04B7/0628 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04B15/06 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2636 ,  H04W8/24 ,  H04W72/23 ,  H04W76/27 ,  H04W88/06 ,  H04W88/10 ,  H04L5/0048 ,  H04L27/2602

Abstract: The present disclosure provides apparatuses, systems, methods, and machine readable storage medium for physical uplink shared channel (PUSCH) transmission between a user equipment (UE) and a base station, based on a robust codebook. In an embodiment, a UE, including circuitry operable to: report a UE capability of the UE to a base station, wherein the UE capability comprises a number of phase tracking reference signal (PT-RS) antenna ports (NPT-RS) supported by the UE; decode control signaling received from the base station, wherein the control signaling comprises at least one parameter to indicate a precoder selected from a codebook based on at least the NPT-RS; and perform physical uplink shared channel (PUSCH) transmission according to the indicated precoder; wherein the codebook is predefined or configured based on different numbers of PT-RS antenna ports and different waveforms, in the UE and the base station.

公开(公告)号：US20230224049A1

公开(公告)日：2023-07-13

申请号：US18000898

申请日：2020-06-09

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Peter JAKOBSSON ,  Lars SUNDSTRÖM

IPC: H04B15/06 ,  H03L7/099

CPC classification number: H04B15/06 ,  H03L7/099

Abstract: An apparatus for a multi-antenna transceiver is disclosed. The multi-antenna transceiver has a plurality of antenna elements connected to respective transceiver chains. Each transceiver chain includes a frequency converter operated using a respective local oscillator signal provided by a respective phase-locked loop. The apparatus includes a controller configured to cause control of the respective phase-locked loop of one or more transceiver chain to generate the respective local oscillator signal with a respective phase offset for mitigation of local oscillator leakage through the frequency converter. In some embodiments, the controller is further configured to cause, for each transceiver chain with a non-zero respective phase offset, a corresponding phase adjustment of a signal for frequency conversion. Corresponding multi-antenna transceivers, wireless communication devices and methods are also disclosed.

公开(公告)号：US09973287B2

公开(公告)日：2018-05-15

申请号：US15218886

申请日：2016-07-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yosuke Ogasawara ,  Tsuneo Suzuki

IPC: H04B15/06 ,  G06F1/04

CPC classification number: H04B15/06 ,  G06F1/04 ,  H04B2215/067

Abstract: A clock generation circuit includes a random number generator configured to generate random numbers according to a first probability distribution, a filter configured to output random numbers according to a second probability distribution, based on the random numbers according to the first probability distribution input thereto, and a variable delay circuit configured to modulate a clock signal input thereto by delaying edges of the clock signal by amounts corresponding to values of the random numbers according to the second probability distribution. Probability of a smallest number according to the second probability distribution is smaller than probability of the smallest number according to the first probability distribution, and probability of a largest number according to the second probability distribution is smaller than probability of the largest number according to the first probability distribution.

公开(公告)号：US09912425B2

公开(公告)日：2018-03-06

申请号：US14570876

申请日：2014-12-15

Applicant: Intel Corporation

Inventor： Peter Laaser ,  Christoph Schultz ,  Christian Duerdodt

IPC: H04L12/28 ,  H04J1/12 ,  H04B1/00 ,  H04B1/04 ,  H04B1/10 ,  H04B15/06

CPC classification number: H04J1/12 ,  H04B1/005 ,  H04B1/0475 ,  H04B1/10 ,  H04B15/06

Abstract: Radio frequency (RF) communication circuitry comprises an RF transceiver and conflict detection circuitry. The RF transceiver includes a first communication path configured to down-convert received RF signals using a first local oscillator (LO) receive frequency; and a second communication path configured to down-convert received RF signals using a second LO receive frequency and to operate simultaneously with the first communication path. The conflict detection circuitry is configured to determine path crosstalk using the first and second LO receive frequencies and using a first LO transmit frequency used by the first RF transceiver or a second RF transceiver to up-convert electrical signals for RF transmission, and initiate a change of the first LO receive frequency by a first frequency shift value and a change of the second LO receive frequency by a second frequency shift value in response to the path crosstalk.

公开(公告)号：US20170366280A1

公开(公告)日：2017-12-21

申请号：US15188267

申请日：2016-06-21

Applicant: Intel IP Corporation

Inventor： Andreas Gebhard ,  Silvester Sadjina ,  Krzysztof Dufrene ,  Stefan Tertinek

IPC: H04B15/06 ,  H03D7/14

CPC classification number: H04B15/06 ,  H03D7/1441

Abstract: A transceiver includes local oscillator (LO) signal circuitry configured to output an LO signal having an LO frequency and mixer circuitry configured to input the LO signal and an information signal that encodes communication data and output a shifted signal that corresponds to the information signal shifted to a desired frequency. The LO signal circuitry includes selection circuitry and generation circuitry. The selection circuitry is configured to select a pulse pattern and a gap duration based at least on a target harmonic of the LO frequency to be suppressed. The pulse pattern includes at least two pulses spaced apart by a gap having the gap duration. The generation circuitry is configured to generate an LO signal characterized by the selected pulse pattern and gap duration.

公开(公告)号：US09755773B2

公开(公告)日：2017-09-05

申请号：US14068155

申请日：2013-10-31

Applicant: FUNAI ELECTRIC CO., LTD.

Inventor： Takuya Suzuka

IPC: H04H40/90 ,  H04W4/00 ,  H04W72/00 ,  H04B1/00 ,  H04B15/06

CPC classification number: H04H40/90 ,  H04B1/0057 ,  H04B15/06 ,  H04W4/00 ,  H04W72/00

Abstract: A receiving apparatus comprises: a plurality of tuners; and a controller that controls a frequency of a local oscillation signal from each tuner such that a frequency of a synthetic signal generated by multiplying the local oscillation signals from the plurality of tuners by each other does not fall in a frequency band of a channel selected by each tuner. Deterioration in reception quality due to the multiplication of the local oscillation signals is prevented.

公开(公告)号：US09595987B2

公开(公告)日：2017-03-14

申请号：US14300451

申请日：2014-06-10

Applicant: PC-TEL, Inc.

Inventor： Wei Lu ,  John Kyechong Kim

IPC: H04B1/10 ,  H03D7/14 ,  H03D7/16

CPC classification number: H04B1/1036 ,  H03D7/1483 ,  H03D7/161 ,  H04B1/0075 ,  H04B1/28 ,  H04B15/06 ,  H04B2001/1072

Abstract: A wide tuning range receiver is provided that includes first and second mixers, and first and second local oscillators. The first mixer can mix an input signal with a signal from the first local oscillator and output a signal having a first intermediate frequency, the second mixer can mix the signal having the first intermediate frequency with a signal from the second local oscillator and output a signal having a second intermediate frequency, and, for each input signal frequency, a relationship between the first and second local oscillators can be fixed.

Abstract translation: 提供了一种宽调谐范围接收器，其包括第一和第二混频器以及第一和第二本地振荡器。 第一混频器可以将输入信号与来自第一本地振荡器的信号混合并输出具有第一中频的信号，第二混频器可以将具有第一中频的信号与来自第二本机振荡器的信号混频，并输出信号 具有第二中频，并且对于每个输入信号频率，可以固定第一和第二本地振荡器之间的关系。

公开(公告)号：US20160218698A1

公开(公告)日：2016-07-28

申请号：US14602939

申请日：2015-01-22

Applicant: Honeywell International, Inc.

Inventor： Alok Kumar Pugalia

IPC: H03K3/013 ,  H03L7/00

CPC classification number: H03K3/013 ,  H03K19/00346 ,  H03L7/00 ,  H04B15/06

Abstract: An apparatus includes a controller configured to be coupled to a system clock that generates a clock signal for a device that generates radiated electromagnetic interference (RE). The controller is also configured to determine a frequency span associated with the system clock, where the frequency span has a minimum frequency and a maximum frequency. The controller is further configured to determine a sequence of frequency steps, where each frequency step is associated with a distinct frequency within the frequency span. In addition, the controller is configured to control the system clock to change a frequency of the clock signal through the sequence of frequency steps in order to reduce the RE generated at or by the device. In some embodiments, the frequency steps are interleaved across the frequency span to avoid large frequency jumps. In some embodiments, the frequency step duration is optimally selected to reduce quasi peak values.

Abstract translation: 一种装置包括控制器，其被配置为耦合到产生辐射电磁干扰（RE）的装置的时钟信号的系统时钟。 控制器还被配置为确定与系统时钟相关联的频率跨度，其中频率跨度具有最小频率和最大频率。 控制器还被配置为确定频率步骤的序列，其中每个频率步长与频率范围内的不同频率相关联。 此外，控制器被配置为控制系统时钟以通过频率步长序列改变时钟信号的频率，以便减少在设备处或由设备产生的RE。 在一些实施例中，频率跨越频率跨度交错以避免大的频率跳跃。 在一些实施例中，最佳地选择频率步长以减少准峰值。

公开(公告)号：US20160218673A1

公开(公告)日：2016-07-28

申请号：US14604331

申请日：2015-01-23

Applicant: Cambium Networks Limited

Inventor： Scott R. Anderson ,  Ted J. Beck

IPC: H03D7/14 ,  H04B7/04 ,  H04B1/40

CPC classification number: H03D7/14 ,  H04B1/006 ,  H04B1/40 ,  H04B7/0413 ,  H04B15/06 ,  H04L27/2626 ,  H04L27/2647

Abstract: Devices and methods are disclosed for generating, filtering, and amplifying signals that are sent and received using SOCs. These improved methods and devices advantageously provide filtering of composite RF signals such that the RF signals can be transmitted with an improved SNR. Such filtered signals can then be transmitted at a higher power. Because filtering is performed at an intermediate frequency, the higher cost of low-noise RF-transmitters and/or RF filtering components can be avoided. Accordingly, less expensive (e.g., noisier) components, such as readily available wireless transceiver SOCs, can be used for generating RF signals, filtering the signals, and then transmitting the filtered signals at higher power. As a result of these devices and methods, inexpensive SOCs may be used at higher powers and over longer ranges than would be normally expected

Abstract translation: 公开了用于生成，滤波和放大使用SOC发送和接收的信号的装置和方法。 这些改进的方法和装置有利地提供复合RF信号的滤波，使得可以以改进的SNR传输RF信号。 然后可以以更高的功率传输这样的滤波信号。 由于在中频执行滤波，因此可以避免低噪声RF发送器和/或RF滤波部件的成本较高。 因此，诸如容易获得的无线收发器SOC之类的较便宜的（例如噪声）组件可用于产生RF信号，对信号进行滤波，然后以较高功率传输滤波后的信号。 作为这些装置和方法的结果，可以在比通常预期的更高的功率和更长的范围内使用廉价的SOC

公开(公告)号：US20160204825A1

公开(公告)日：2016-07-14

申请号：US14902297

申请日：2013-07-03

Applicant: Hytera Communications Corp., Ltd.

Inventor： Lingwei Chen

IPC: H04B1/54 ,  H04B1/40

CPC classification number: H04B1/54 ,  H04B1/40 ,  H04B1/525 ,  H04B15/06

Abstract: A terminal and method for improving the terminal reception sensitivity; when the terminal works in a time division duplexing mode, the method comprises: in a transmitting time slot, using the frequency of the transmitting voltage control oscillator (VCO) of the terminal as a first frequency; and in a receiving time slot, using the frequency of the transmitting VCO of the terminal as a preset second frequency, the predetermined second frequency differs from the first frequency in the bandwidth of at least one channel. The present invention improves the reception sensitivity of a terminal, reduces the production cost of the terminal, and decreases product size.

Abstract translation: 一种用于提高终端接收灵敏度的终端和方法; 当终端以时分双工模式工作时，该方法包括：在发送时隙中，使用终端的发送压控振荡器（VCO）的频率作为第一频率; 并且在接收时隙中，使用终端的发送VCO的频率作为预设的第二频率，预定的第二频率与至少一个信道的带宽中的第一频率不同。 本发明提高了终端的接收灵敏度，降低了终端的生产成本，并且减小了产品尺寸。