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公开(公告)号：US11050496B2
公开(公告)日：2021-06-29
申请号：US16168650
申请日：2018-10-23
IPC分类号： H04B17/27 , H04B17/17 , H04B17/336 , H01Q3/26 , G01R1/04 , G01R31/28 , G01R31/319 , H04B17/12
摘要： Testing devices such as integrated circuits (IC) with integrated antennas configured for millimeter wave (mmW) transmission and/or reception. A DUT may be mounted to an interface in a measurement fixture (e.g., a socket, anechoic chamber, etc.). Power and data connections of the DUT may be tested over the interface, which may also provide connections (e.g., wired) for input/output signals, power, and control and may also provide positioning. Radio frequency (RF) characteristics of the DUT may be tested over-the-air using an array of antennas or probes in the radiating Fresnel zone of the DUT's antennas. Each of the antennas or probes of the array may incorporate a power detector (e.g., a diode) so that the RF radiating pattern may be measured using DC voltage measurements. Measured voltage measurements may be compared to an ideal signature, e.g., voltage measurements expected from an ideal or model DUT.
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公开(公告)号：US10181913B2
公开(公告)日：2019-01-15
申请号：US15821473
申请日：2017-11-22
摘要： Techniques are disclosed related to calibrating and operating a multiple input multiple output (MIMO) radio system. In some embodiments, a dual mode calibration may be employed to calibrate a remote transmitter (RT). During a first, Sparse Full System Calibration (SFSC) mode, the RT may be physically connected to the MIMO radio system. In some embodiments, first and second equalizers may be derived for each of the RT and a local transmitter (LT), respectively. During a subsequent, Real-time Calibration (RTC) mode, the RT may be located remotely from the MIMO radio system, and the RT may be configured to communicate with the MIMO radio system over the air via an antenna. In the RTC mode, third equalizers may be derived for the LT. The RT may then be calibrated based on an equalizer that is derived from each of the first, second, and third equalizers. As one non-limiting example, the techniques described herein may enable real-time calibration for the RT even while the RT is located remotely from the MIMO radio system. In different embodiments, the calibration may be achieved by deriving either fractionally spaced frequency domain equalizers, or time domain equalizers.
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3.发明申请公开(公告)号：US20180159640A1
公开(公告)日：2018-06-07
申请号：US15821270
申请日：2017-11-22
IPC分类号： H04B17/21 , H04B7/0413 , H04L25/02 , H04L25/03
摘要： Techniques are disclosed related to calibrating and operating a multiple input multiple output (MIMO) radio system. Some embodiments comprise a method wherein a single calibration signal is used to calibrate a MIMO radio system by performing each of time synchronization, phase synchronization, and frequency response correction for multiple receivers. In different embodiments, the calibration may be achieved by deriving either a fractionally spaced frequency domain equalizer, or a time domain equalizer.
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公开(公告)号：US20170141886A1
公开(公告)日：2017-05-18
申请号：US14941158
申请日：2015-11-13
发明人： MinKeun Chung , Jaeweon Kim , James W. McCoy , Ahsan Aziz
CPC分类号： H04L5/006 , H04L1/0003 , H04L1/0026 , H04L5/14 , H04L5/1461 , H04W72/0406 , H04W72/082
摘要： Techniques are disclosed relating to channel quality reporting for full-duplex (FD) wireless communications. In some embodiments an apparatus (e.g., a mobile device) is configured to receive a reference signal in a wireless communication and determine an effective signal to interference plus noise ratio (SINR) for FD communications based on a measured SINR of the reference signal and one or more self-interference cancelation levels. The apparatus may determine the one or more self-interference cancelation levels based on the transmit power of signals transmitted by the apparatus and residual power after SIC. The SIC levels may include both analog and digital SIC levels, which may be separately determined. One or more modulation and coding schemes may be determined based on the effective SINR. In some embodiments, multiple effective SINRs are determined for multiple different transmission modulation orders used by the apparatus.
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公开(公告)号：US11595109B2
公开(公告)日：2023-02-28
申请号：US17741188
申请日：2022-05-10
IPC分类号： H04B7/06 , H04W16/28 , H04W72/04 , H04B17/318 , H04W24/10 , H04B17/336 , H04W80/02
摘要： A user equipment device (UE) determines a beam coherence interval metric, which is a measure of stability of a beam pair over time based on a set of beam coherence intervals measured by the UE. The beam pair comprises a receive beam of the UE and a transmit beam of a base station transmitting to the UE. A beam coherence interval comprises a time duration within which a quality of a signal received on the UE receive beam remains within one of a plurality of signal quality bins. The UE also determines a hysteresis value based on the beam coherence interval metric and uses the hysteresis value to decide to switch from an active receive beam to a different receive beam that has a signal quality higher than the active receive beam by at least the hysteresis value. Alternatively, the base station determines and sends the UE the hysteresis value.
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公开(公告)号：US20190356397A1
公开(公告)日：2019-11-21
申请号：US16179578
申请日：2018-11-02
IPC分类号： H04B17/17 , H01Q3/26 , H04B17/336
摘要： Various embodiments are presented of a system and method for testing (e.g., rapidly and cheaply) devices with antennas configured for radio frequency (RF) and/or millimeter wave (mmW) transmission and/or reception. A device to be tested (e.g., the device under test (DUT)) may be mounted to an interface in a measurement fixture (e.g., a socket, anechoic chamber, etc.). Power and data connections of the DUT may be tested over the interface, which may also provide connections for input/output signals, power, and control and may also provide positioning. RF characteristics (e.g., including transmission, reception, and/or beamforming) of the DUT may be tested over-the-air using an array of antennas or probes.
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公开(公告)号：US10257329B2
公开(公告)日：2019-04-09
申请号：US15700050
申请日：2017-09-08
发明人： Ahsan Aziz , Amal Ekbal , Vincent Kotzsch
摘要： A wireless communications apparatus includes first/second data source/sinks that respectively source/sink PDCP SDU and MAC PDU for transfer to/from a memory unit and hardware accelerators controlled by a control processor (CP). In response to sourcing transmit PDCP SDU for transfer to the memory unit, the CP controls the hardware accelerators to generate and write PDCP, RLC, MAC headers to the memory unit and assemble the generated headers and the transmit PDCP SDU from the memory unit into transmit MAC PDU for provision to the second data sink. In response to sourcing receive MAC PDU for transfer to the memory unit, the CP controls the hardware accelerators to decode PDCP, RLC MAC headers of the receive MAC PDU in the memory unit to determine locations of receive PDCP SDU in the memory unit and fetch the receive PDCP SDU from the determined locations for provision to the first data sink.
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8.发明申请Systems and Methods for High Throughput Signal Processing Using Interleaved Data Converters 有权使用交错数据转换器进行高吞吐量信号处理的系统和方法公开(公告)号：US20150303936A1
公开(公告)日：2015-10-22
申请号：US14257944
申请日：2014-04-21
发明人： Yong Rao , Ahsan Aziz , James W. McCoy
IPC分类号： H03M1/12 , G06F3/0484 , G06F3/0481 , H03K19/177 , H03K19/173
CPC分类号： G06F3/04842 , G06F3/04817 , H03K19/1733 , H03K19/17748 , H03M1/1215
摘要： Various embodiments of methods and associated devices for increasing throughput in a programmable hardware element using interleaved data converters are disclosed. A device comprising a programmable hardware element may be configured to comprise a plurality N of processing portions. The device may receive an input signal, and sample the signal in an interleaved fashion, on a per sample basis, at an effective rate K, to produce N parallel data streams. The N parallel data streams may be processed in parallel by the plurality N of processing portions. Outputs of the plurality N of processing portions may be combined to produce output data. The effective rate K and/or the number N of parallel data streams may be specified by user input. Alternatively, these values may be determined automatically. For example, the effective rate K may be determined automatically based on a bandwidth of the input signal.
摘要翻译： 公开了用于增加使用交错数据转换器的可编程硬件元件中的吞吐量的方法和相关装置的各种实施例。 包括可编程硬件元件的装置可以被配置为包括多个N个处理部分。 设备可以接收输入信号，并且以有效速率K以每个采样的方式以交织的方式对信号进行采样，以产生N个并行数据流。 N个并行数据流可以由多个处理部分并行处理。 可以组合多个N个处理部分的输出以产生输出数据。 并行数据流的有效速率K和/或数量N可以由用户输入来指定。 或者，可以自动确定这些值。 例如，可以基于输入信号的带宽自动确定有效速率K.
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公开(公告)号：US20220376764A1
公开(公告)日：2022-11-24
申请号：US17741188
申请日：2022-05-10
IPC分类号： H04B7/06 , H04W72/04 , H04B17/318 , H04W24/10 , H04B17/336 , H04W80/02 , H04W16/28
摘要： A user equipment device (UE) determines a beam coherence interval metric, which is a measure of stability of a beam pair over time based on a set of beam coherence intervals measured by the UE. The beam pair comprises a receive beam of the UE and a transmit beam of a base station transmitting to the UE. A beam coherence interval comprises a time duration within which a quality of a signal received on the UE receive beam remains within one of a plurality of signal quality bins. The UE also determines a hysteresis value based on the beam coherence interval metric and uses the hysteresis value to decide to switch from an active receive beam to a different receive beam that has a signal quality higher than the active receive beam by at least the hysteresis value. Alternatively, the base station determines and sends the UE the hysteresis value.
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公开(公告)号：US11381297B2
公开(公告)日：2022-07-05
申请号：US16600495
申请日：2019-10-12
IPC分类号： H04W16/28 , H04B7/06 , H04W72/04 , H04B17/318 , H04W24/10 , H04B17/336 , H04W80/02
摘要： A UE determines a beam coherence interval metric that is a measure of stability of a beam pair over time based on a set of beam coherence intervals measured by the UE. The beam pair comprises a UE receive beam and a base station transmit beam. A beam coherence interval comprises a time duration within which a quality of a signal received on the UE receive beam remains within one of a plurality of signal quality bins. The UE reports the metric to the base station. The base station may update beam management resource and reporting configurations to the UE based on the metric. The UE may also use the metric to determine a hysteresis value useable by the UE to decide to switch from an active receive beam to a different receive beam having a higher signal quality by at least the hysteresis value.
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