公开(公告)号：US20160080017A1

公开(公告)日：2016-03-17

申请号：US14486113

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Jibing Wang ,  Brian Clarke Banister

IPC: H04B1/10

CPC classification number: H04B1/1036 ,  H04B1/005 ,  H04B1/1027 ,  H04B2001/1045 ,  H04B2001/1072 ,  H04W84/12

Abstract: Methods, systems, and devices are described for adaptively or dynamically tuning a radio frequency (RF) local oscillator (LO) for wireless communications. In one example, a radio may receive an RF signal and the LO of a radio may be tuned to a frequency that is an offset from its reception (RX) center frequency to deal with interference from another signal, such as one being transmitted using a different radio access technology (RAT) than that of the radio. The offset may be determined based upon an effect of the tuning on an attribute of the RF signal. In addition, the offset may be determined based on interference caused by the other signal.

Abstract translation: 描述用于自适应或动态地调谐用于无线通信的射频（RF）本地振荡器（LO）的方法，系统和设备。 在一个示例中，无线电可以接收RF信号，并且无线电的LO可以被调谐到与其接收（RX）中心频率偏移的频率，以处理来自另一个信号的干扰，例如使用 不同于无线电接入技术（RAT）。 可以基于调谐对RF信号的属性的影响来确定偏移。 此外，可以基于由其他信号引起的干扰来确定偏移。

公开(公告)号：US20160072591A1

公开(公告)日：2016-03-10

申请号：US14849544

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan TU ,  Farrokh Abrishamkar ,  Brian Clarke Banister ,  Roberto Rimini ,  Nicholas Michael Carbone ,  Insung Kang

IPC: H04B15/00

CPC classification number: H04B1/0475 ,  H04B1/525 ,  H04W88/06

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a block least squares function interference filter by generating aggressor kernel matrices from the aggressor signals, augmenting the aggressor kernel matrices by weight factors and executing a linear combination of the augmented output, at an intermediate layer to produce intermediate layer outputs. At an output layer, a linear filter function may be executed on the intermediate layer outputs to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用块最小二乘函数干扰滤波器通过从侵扰者信号产生侵略者核心矩阵来估计非线性干扰，通过权重因子增加侵略者核心矩阵并在中间层执行增强输出的线性组合以产生中间层输出 。 在输出层，可以对中间层输出执行线性滤波函数，以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US08954055B2

公开(公告)日：2015-02-10

申请号：US13671680

申请日：2012-11-08

Applicant: QUALCOMM Incorporated

Inventor： Shivratna Giri Srinivasan ,  Brian Clarke Banister ,  Supratik Bhattacharjee

IPC: H04W24/00 ,  H04J11/00 ,  H04L27/26

CPC classification number: H04J11/0073 ,  H04J11/00 ,  H04J11/0076 ,  H04L27/26 ,  H04L27/2657 ,  H04L27/2666 ,  H04L27/2675

Abstract: In a wireless network, a base station (BS) may send a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The synchronization signals may be used by user equipments (UEs) for cell detection and acquisition. A typical searching operation may involve first locating the PSS sequences transmitted by neighboring BSs, followed by SSS detection. Described further herein are algorithms that result in the detection of the PSS and the SSS from a BS. A method for detecting a BS generally includes sampling a received signal from receiver antennas to obtain a sampled sequence, analyzing the sampled sequence to detect a PSS in a current half-frame (HF), calculating signal-to-noise ratio (SNR) metrics based on the detected PSS, combining the calculated SNR metrics with SNR metrics from previous HFs, analyzing the combined SNR metrics to obtain timing information, and analyzing the sampled sequence using the timing information to detect a SSS.

Abstract translation: 在无线网络中，基站（BS）可以发送主同步信号（PSS）和辅同步信号（SSS）。 同步信号可以由用户设备（UE）用于小区检测和获取。 典型的搜索操作可以包括首先定位由相邻BS发送的PSS序列，随后进行SSS检测。 这里进一步描述了导致从BS检测PSS和SSS的算法。 用于检测BS的方法通常包括对来自接收机天线的接收信号进行采样以获得采样序列，分析采样序列以检测当前半帧（HF）中的PSS，计算信噪比（SNR）度量 基于检测到的PSS，将计算的SNR度量与来自先前HF的SNR度量相结合，分析组合SNR度量以获得定时信息，以及使用定时信息分析采样序列以检测SSS。

公开(公告)号：US08903341B2

公开(公告)日：2014-12-02

申请号：US13705878

申请日：2012-12-05

Applicant: QUALCOMM Incorporated

Inventor： Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04B17/00 ,  H04B1/10 ,  H04L25/03 ,  H04J11/00

CPC classification number: H04B1/1027 ,  H04J11/0043 ,  H04L25/03891 ,  H04L2025/03426

Abstract: Certain aspects of the present disclosure provide ordering techniques for a Successive Interference Cancellation (SIC) receiver which may be used to robustly choose a correct stream for first decode under varying data rates, SNR and mobile propagation conditions in Multiple Input Multiple Output (MIMO) systems. The SIC ordering techniques discussed in the disclosure include SNR and/or Rate based information theoretic approach. For example, the SIC receiver may evaluate an SNR based or RATE-based information theoretic metric for the MIMO streams and choose one stream with a higher value of the metric for decoding first. A speculative single code block based approach is may also be used for selecting a stream for first decode, by leveraging the presence of per code block Cyclic Redundancy Check (CRC) and the lack of time diversity in LTE systems.

Abstract translation: 本公开的某些方面提供了用于连续干扰消除（SIC）接收机的排序技术，其可用于在变化的数据速率，多输入多输出（MIMO）系统中的SNR和移动传播条件下）稳健地选择用于第一解码的正确流 。 在本公开中讨论的SIC排序技术包括基于SNR和/或速率的信息理论方法。 例如，SIC接收机可以评估用于MIMO流的基于SNR的或基于RATE的信息理论度量，并且选择具有较高值的​​度量的一个流，以便首先进行解码。 通过利用每个码块循环冗余校验（CRC）的存在和LTE系统中的时间分集的缺乏，也可以使用基于猜测的基于单码块的方法来选择用于第一解码的流。

公开(公告)号：US20140301262A1

公开(公告)日：2014-10-09

申请号：US14074455

申请日：2013-11-07

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Ali Raissinia ,  Brian Clarke Banister ,  Alexei Yurievitch Gorokhov

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24

Abstract: Methods, apparatuses, systems, and devices are described for wireless communication. In one configuration, an allocation of physical resources to be utilized by a wireless communication device during one or more portions of a subframe may be received at the wireless communication device. There may then be determined, based on the received allocation of physical resources, one or more bandwidths to be utilized at the wireless communication device during the one or more portions of the subframe. At least one of a voltage level or a clock frequency of the wireless communication device may be adjusted to process the one or more portions of the subframe. The at least one of the voltage level or the clock frequency may be adjusted based on the determined one or more bandwidths.

Abstract translation: 描述了用于无线通信的方法，设备，系统和设备。 在一种配置中，可以在无线通信设备处接收在子帧的一个或多个部分期间由无线通信设备使用的物理资源的分配。 然后可以基于物理资源的接收分配来确定在子帧的一个或多个部分期间在无线通信设备处要使用的一个或多个带宽。 可以调整无线通信设备的电压电平或时钟频率中的至少一个以处理子帧的一个或多个部分。 可以基于所确定的一个或多个带宽来调整电压电平或时钟频率中的至少一个。

公开(公告)号：US20140155010A1

公开(公告)日：2014-06-05

申请号：US13705878

申请日：2012-12-05

Applicant: QUALCOMM INCORPORATED

Inventor： Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H04J11/0043 ,  H04L25/03891 ,  H04L2025/03426

Abstract: Certain aspects of the present disclosure provide ordering techniques for a Successive Interference Cancellation (SIC) receiver which may be used to robustly choose a correct stream for first decode under varying data rates, SNR and mobile propagation conditions in Multiple Input Multiple Output (MIMO) systems. The SIC ordering techniques discussed in the disclosure include SNR and/or Rate based information theoretic approach. For example, the SIC receiver may evaluate an SNR based or RATE-based information theoretic metric for the MIMO streams and choose one stream with a higher value of the metric for decoding first. A speculative single code block based approach is may also be used for selecting a stream for first decode, by leveraging the presence of per code block Cyclic Redundancy Check (CRC) and the lack of time diversity in LTE systems.

Abstract translation: 本公开的某些方面提供了用于连续干扰消除（SIC）接收机的排序技术，其可用于在变化的数据速率，多输入多输出（MIMO）系统中的SNR和移动传播条件下）稳健地选择用于第一解码的正确流 。 在本公开中讨论的SIC排序技术包括基于SNR和/或速率的信息理论方法。 例如，SIC接收机可以评估用于MIMO流的基于SNR的或基于RATE的信息理论度量，并且选择具有较高值的​​度量的一个流，以便首先进行解码。 通过利用每个码块循环冗余校验（CRC）的存在和LTE系统中的时间分集的缺乏，也可以使用基于猜测的基于单码块的方法来选择用于第一解码的流。

公开(公告)号：US08670734B2

公开(公告)日：2014-03-11

申请号：US13670580

申请日：2012-11-07

Applicant: QUALCOMM Incorporated

Inventor： Shivratna Giri Srinivasan ,  Raghu Narayan Challa ,  Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04B1/10

CPC classification number: H04W56/00 ,  H04B1/7083 ,  H04J11/0069 ,  H04L27/2663

Abstract: Methods and apparatus for determining a reference sequence and timing based on normalized correlations are described. One example method generally includes receiving, at a first antenna of an apparatus, a first signal comprising a reference sequence; receiving, at a second antenna of the apparatus, a second signal comprising the same reference sequence; sampling the first and second signals to form first and second signal sequences; correlating the first and second signal sequences with each of one or more candidate sequences for the reference sequence using normalization; and determining the reference sequence and timing for the first and second signals based on the normalized correlations.

Abstract translation: 描述了基于归一化相关性来确定参考序列和定时的方法和装置。 一个示例性方法通常包括在装置的第一天线处接收包括参考序列的第一信号; 在装置的第二天线处接收包括相同参考序列的第二信号; 对第一和​​第二信号进行采样以形成第一和第二信号序列; 使用归一化将第一和第二信号序列与用于参考序列的一个或多个候选序列中的每一个相关; 以及基于所述归一化相关性来确定所述第一和第二信号的参考序列和定时。

公开(公告)号：US20130121187A1

公开(公告)日：2013-05-16

申请号：US13671017

申请日：2012-11-07

Applicant: Qualcomm Incorporated

Inventor： Sibasish Das ,  Shivratna Giri Srinivasan ,  Supratik Bhattacharjee ,  Brian Clarke Banister

IPC: H04W24/10

CPC classification number: H04W36/0083 ,  H04B17/309 ,  H04B17/318 ,  H04W24/10 ,  H04W36/0088

Abstract: Methods and apparatus for computing measurement metrics in a wireless communications network are provided. One example method generally includes obtaining a channel impulse response (CIR) from one or more reference signals (RSs) transmitted from one or more antennas of a base station (BS); calculating an absolute square per element of the CIR to generate channel energy response (CER) elements; calculating a threshold value based on a noise variance estimated from a portion of the CER elements; selecting CER elements that exceed the threshold value; and computing a reference signal received power (RSRP) value based on the selected CER elements.

Abstract translation: 提供了用于计算无线通信网络中的测量度量的方法和装置。 一个示例性方法通常包括从从基站（BS）的一个或多个天线发送的一个或多个参考信号（RS）获得信道脉冲响应（CIR）; 计算CIR的每个元素的绝对平方，以产生信道能量响应（CER）元素; 基于从所述CER元素的一部分估计的噪声方差来计算阈值; 选择超过阈值的CER元素; 以及基于所选择的CER元素计算参考信号接收功率（RSRP）值。

公开(公告)号：US12207243B2

公开(公告)日：2025-01-21

申请号：US17513585

申请日：2021-10-28

Applicant: QUALCOMM Incorporated

Inventor： Amodh Kant Saxena ,  Mihir Vijay Laghate ,  Raghu Narayan Challa ,  Brian Clarke Banister

IPC: H04W72/04 ,  H04B7/06 ,  H04W72/044 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to select a set of beams to generate energy in a first coverage region (e.g., an out-of-coverage (OOC) region) to reduce the effects of a distorted electric field. The UE may select the set of beams based on gain parameters associated with a set of antennas at the UE, where the gain parameters are determined for communications in a second coverage region (e.g., an in-coverage (INC) region). In some examples, the UE may use iterative techniques to select the beams. In some examples, the UE may select the set of beams based on calculations using a set of codebook beams associated with the second coverage region. In some examples, the UE may additionally select the set of beams for communications in the second coverage region.

公开(公告)号：US12114180B2

公开(公告)日：2024-10-08

申请号：US17648789

申请日：2022-01-24

Applicant: QUALCOMM Incorporated

Inventor： Danlu Zhang ,  Brian Momeyer ,  Brian Clarke Banister ,  Udara Fernando ,  Eyosias Yoseph Imana ,  Raghu Narayan Challa ,  Jiaying Pan ,  Xiaoxin Zhang ,  Bala Ramasamy

IPC: H04W16/28 ,  H04W52/36

CPC classification number: H04W16/28 ,  H04W52/367

Abstract: A method for wireless communication performed by a head-mounted user equipment (UE), the method includes determining a first spatial relationship between an eye of a human user of the head-mounted UE and physical transmission and reception ports of the head-mounted UE; based on the first spatial relationship, determining a second spatial relationship between a plurality of radio frequency (RF) beam directions of the head-mounted UE and the eye of the human user; selecting a first RF beam direction from among the plurality of RF beam directions based at least in part on the second spatial relationship with respect to the first RF beam direction; and transmitting or receiving RF radiation using a first RF beam conforming to the first RF beam direction.