公开(公告)号：EP1402631B1

公开(公告)日：2011-05-18

申请号：EP02709570.2

申请日：2002-02-15

Applicant: QUALCOMM INCORPORATED

Inventor： LI, Tao ,  HOLENSTEIN, Christian ,  KANG, Injup ,  WALKER, Brett, C. ,  PETERZELL, Paul, E. ,  CHALLA, Raghu ,  SEVERSON, Matthew, L. ,  RAGHUPATHY, Arun ,  SIH, Gilbert C.

IPC: H03G3/30 ,  H03D3/00 ,  H04B1/40

CPC classification number: H03G3/3078 ,  H03G3/3068 ,  H03G3/3089

Abstract: A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/analog circuitry, and a serial bus interface (SBI) unit to provide controls for the RF/analog circuitry via a serial bus. The DVGA may be advantageously designed and located as described herein. The operating mode of the VGA loop may be selected based on the operating mode of the DC loop, since these two loops interact with one another. The duration of time the DC loop is operated in an acquisition mode may be selected to be inversely proportional to the DC loop bandwidth in the acquisition mode. The controls for some or all of the RF/analog circuitry may be provided via the serial bus.

公开(公告)号：EP2266053A1

公开(公告)日：2010-12-29

申请号：EP09725530.1

申请日：2009-03-07

Applicant: QUALCOMM Incorporated

Inventor： CHAUDHURI, Arunava ,  YAO, Iwen ,  LIN, Jeremy, H. ,  ROSTAMPISHEH, Ali ,  CHALLA, Raghu ,  SAMPATH, Hemanth ,  WU, Megan ,  ZANOTELLI, Joseph ,  NATH, Mrinal

IPC: G06F15/78 ,  H04M1/725

CPC classification number: G06F15/7842

Abstract: A flexible and reconfϊgurable digital system (for example, a wireless modem) includes a set of sub-circuits. Each sub-circuit includes a task manager and an amount of configurable hardware circuitry for performing a type of operation on a data stream. The task manager of a sub-circuit can configure and control the configurable hardware of the sub-circuit. A central processor configures and orchestrates operation of the sub- circuits by maintaining a set of task lists in a tightly coupled memory. Each task list includes task instructions for a corresponding sub-circuit. The task manager of a sub- circuit reads task instructions from its task list and controls its associated hardware circuitry as directed by the instructions. A timestamp task instruction and a push task instruction and the task list architecture allow modem sub-circuits to be easily reconfigured to operate in accordance with either a first air interface standard or a second air interface standard.

Abstract translation: 灵活和可重新配置的数字系统（例如，无线调制解调器）包括一组子电路。 每个子电路包括任务管理器和用于对数据流执行一种操作的可配置硬件电路的量。 子电路的任务管理器可以配置和控制子电路的可配置硬件。 中央处理器通过在紧耦合存储器中维护一组任务列表来配置和协调子电路的操作。 每个任务列表包括相应子电路的任务指令。 子电路的任务管理器从其任务列表读取任务指令，并根据指令控制其相关联的硬件电路。 时间戳任务指令和推送任务指令以及任务列表架构允许将调制解调器子电路轻松地重新配置为根据第一空中接口标准或第二空中接口标准进行操作。

公开(公告)号：EP1488512A1

公开(公告)日：2004-12-22

申请号：EP03721474.9

申请日：2003-03-26

Applicant: QUALCOMM Incorporated

Inventor： BLACK, Peter J. ,  SINDHUSHAYANA, Nagabhushana ,  CHALLA, Raghu ,  SELTMANN, Kevin

IPC: H03G3/20 ,  H04B1/38

CPC classification number: H03G3/3036 ,  H03G3/3068

Abstract: Systems and techniques for gain control include amplifying a signal with an amplifier having a gain represented by one of a plurality of gain curves depending on a value of a parameter, the signal being amplified at a first one of the parameter values, and controlling the gain of the amplified signal from a predetermined gain curve relating to the gain curve of the amplifier for a second one of the parameter values by adjusting a gain control signal corresponding to a point on the predetermined gain curve as a function of the first one of the parameter values, and applying the adjusted gain control signal to the amplifier. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

公开(公告)号：WO2019161008A1

公开(公告)日：2019-08-22

申请号：PCT/US2019/017936

申请日：2019-02-14

Applicant: QUALCOMM INCORPORATED

Inventor： ZHOU, Yan ,  LUO, Tao ,  GHEORGHIU, Valentin Alexandru ,  CHALLA, Raghu ,  HE, Ruhua ,  LI, Yong ,  VINTOLA, Timo Ville

IPC: H04B7/06 ,  H04B7/08

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing beam switch latency using communications systems operating according to new radio (NR) technologies. For example, the method generally includes determining a latency associated with a beam switch from a source antenna array module to a target antenna array module when the target module is in a low power mode; and signaling a base station to use the determined latency after sending a command for the beam switch.

公开(公告)号：WO2019156981A1

公开(公告)日：2019-08-15

申请号：PCT/US2019/016685

申请日：2019-02-05

Applicant: QUALCOMM INCORPORATED

Inventor： ISLAM, Muhammad Nazmul ,  CEZANNE, Juergen ,  LI, Junyi ,  SUBRAMANIAN, Sundar ,  LUO, Tao ,  CHALLA, Raghu ,  HE, Ruhua ,  LI, Yong ,  ZHU, Jun ,  BAI, Tianyang

IPC: H04B7/06

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.

公开(公告)号：WO2019126264A1

公开(公告)日：2019-06-27

申请号：PCT/US2018/066393

申请日：2018-12-19

Applicant: QUALCOMM INCORPORATED

Inventor： SAMPATH, Ashwin ,  BURKE, Joseph ,  CHALLA, Raghu ,  FERNANDO, Udara ,  PARTYKA, Andrzej ,  ISLAM, Muhammad Nazmul

IPC: H04B1/3827 ,  H04W24/10 ,  H04W52/14

Abstract: In order to maintain conformance with exposure limits, in band measurements may be performed. A method, a computer-readable medium, and an apparatus may be provided for wireless communication at a user equipment. The apparatus receives an indication of a cell specific resource, e.g., a cell specific resource available for MPE measurement. The apparatus then performs a measurement based on the cell specific resource and determines whether to adjust a transmission characteristic of the user equipment based on whether the measurement meets a threshold. In another aspect a base station apparatus may configure a cell specific resource in which a user equipment may perform an MPE measurement and control use of the cell specific resource for the MPE measurement.

公开(公告)号：WO2018111844A1

公开(公告)日：2018-06-21

申请号：PCT/US2017/065765

申请日：2017-12-12

Applicant: QUALCOMM INCORPORATED

Inventor： SAMPATH, Ashwin ,  PARTYKA, Andrzej ,  BURKE, Joseph ,  KOYMEN, Ozge ,  CHALLA, Raghu

IPC: H04W52/36

Abstract: Various aspects of the disclosure relate to reporting a power limit along with an indication of at least one constraint upon which the power limit is based. In some aspects, the constraint is a radio frequency (RF) exposure constraint. For example, a power headroom limit calculated by a first apparatus may be constrained by a specific absorption rate (SAR) limit or a maximum permissible exposure (MPE) limit. The first apparatus may thus report to a second apparatus the current power headroom limit of the first apparatus along with an indication of whether the power headroom limit is constrained by an SAR limit or an MPE limit (e.g., as opposed to being constrained by a maximum transmit power limit). The second apparatus may then schedule the first apparatus taking into account the power headroom limit and the corresponding constraint (e.g., maximum power or SAR/MPE).

公开(公告)号：WO2018039356A1

公开(公告)日：2018-03-01

申请号：PCT/US2017/048229

申请日：2017-08-23

Applicant: QUALCOMM INCORPORATED

Inventor： SRIPATHI, Prashant Udupa ,  VAZE, Chinmay ,  YAN, Hongbo ,  CHALLA, Raghu

IPC: H04W52/02 ,  H04L1/06 ,  H04L1/00

CPC classification number: G06F1/3278 ,  G06F1/3225 ,  H04B7/2603 ,  H04L1/00 ,  H04L1/0053 ,  H04L1/06 ,  H04L12/189 ,  H04W52/0232 ,  H04W52/0245 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/449

Abstract: A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The user equipment may identify a power consumption condition that relates to a downlink channel associated with the user equipment. The power consumption condition may correspond to a time period that is shorter than or equal to a transmission time interval of the user equipment. The user equipment may configure one or more modems of the user equipment to reduce power consumption during the time period.

Abstract translation: 提供了一种用于无线通信的方法，用户设备，装置和计算机程序产品。 用户设备可以识别与和用户设备相关联的下行链路信道有关的功耗条件。 功耗条件可以对应于短于或等于用户设备的传输时间间隔的时间段。 用户设备可以配置用户设备的一个或多个调制解调器以减少在该时间段期间的功耗。

公开(公告)号：WO2008112928A3

公开(公告)日：2008-09-18

申请号：PCT/US2008/056903

申请日：2008-03-13

Applicant: QUALCOMM Incorporated ,  GENG, Jifeng ,  CHALLA, Raghu

Inventor： GENG, Jifeng ,  CHALLA, Raghu

IPC: H04B1/12

Abstract: Techniques for detecting adjacent channel interference (ACI) in a wireless communication system are described. Input inphase (I) and quadrature (Q) samples are filtered with a first filter response to obtain filtered I and Q samples. The first filter response is designed to pass signal in an adjacent frequency channel while suppressing signals in a desired frequency channel and non-adjacent frequency channels. Correlations of the filtered I and Q samples are determined. The presence of ACI is detected based on the correlations of the filtered I and Q samples and the power of the input I and Q samples. If ACI is present, then whether the ACI is from a higher frequency channel or a lower frequency channel is determined based on one or more of the correlations. The input I and Q samples are filtered with a second filter response that is adjusted based on the detection of ACI.

公开(公告)号：WO2007025150A1

公开(公告)日：2007-03-01

申请号：PCT/US2006/033259

申请日：2006-08-24

Applicant: QUALCOMM INCORPORATED ,  CHALLA, Raghu

Inventor： CHALLA, Raghu

IPC: G06T11/40

CPC classification number: G06T11/40 ,  G06T9/00 ,  G06T15/005 ,  G06T15/80

Abstract: A graphics engine includes a setup unit and a rendering unit. The setup unit computes coefficients A , B , and C used for interpolating an attribute ν of a triangle to be rendered for a graphics image. The setup unit then derives compressed coefficients à , ~ B , and ~ C based on the coefficients A , B , and C . The compressed coefficients have a fixed-point format with R integer bits left of a binary point and T fractional bits right of the binary point, where R>1 and T≥0. R is selected based on the number of bits used for attribute ν, T is selected based on the screen dimension, and R+T is much less than the number of bits used to represent the coefficients A , B , and C . The rendering unit performs interpolation for the attribute v using the compressed coefficients à , ~ B , and ~ C , and may be implemented with a simple (R+T)-bit non-saturating accumulator.

Abstract translation: 图形引擎包括设置单元和渲染单元。 设置单元计算用于内插属性的系数A，B和C？ 的三角形要呈现给图形图像。 设置单元然后基于系数A，B和C导出压缩系数¡，〜B和〜C。压缩系数具有固定点格式，其中R个整数位是二进制点，T分数位右 二进制点，其中R> 1和T = 0。 基于用于属性α的位数选择R，基于屏幕尺寸选择T，并且R + T比用于表示系数A，B和C的位数少得多。渲染单元 使用压缩系数¡〜B和〜C对属性v执行内插，并且可以用简单（R + T）位非饱和累加器来实现。