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    Multiple analog and digital downconversion
    2.
    发明专利
    Multiple analog and digital downconversion 有权
    多种模拟和数字显示

    公开(公告)号：JP2010154553A

    公开(公告)日：2010-07-08

    申请号：JP2010036368

    申请日：2010-02-22

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： FERNANDEZ CORBATON IVAN JESUS ,  SMEE JOHN ,  JAYARAMAN SRIKANT

    IPC: H03D7/00 ,  H04B1/26 ,  H03D1/00 ,  H03J7/04 ,  H04B1/707 ,  H04L27/00

    CPC classification number: H04L27/0014 ,  H03J7/04 ,  H04B1/707 ,  H04L2027/0028 ,  H04L2027/0055 ,  H04L2027/0067 ,  H04L2027/0095

    Abstract: PROBLEM TO BE SOLVED: To provide multiple analog and digital downconversion. SOLUTION: In a carrier recovery method using multiple stages of carrier frequency recovery, a receiver uses multiple frequency generation sources to generate carrier signals used to downconvert a received signal. An analog frequency reference 114 having a wide frequency range and coarse frequency resolution is used in conjunction with a digital frequency reference 110 having a narrow frequency range and fine frequency resolution. The multiple carrier signals are multiplied by a received signal to effect a multi-stage downconversion, resulting in a baseband signal. A frequency tracking module 108 measures the residual frequency error present in the baseband signal. The measured residual frequency error is then used to adjust the frequencies of the carrier signals generated by the multiple frequency generation sources 114 and 110 through a processor. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供多种模拟和数字下变频。 解决方案：在使用多级载波频率恢复的载波恢复方法中，接收机使用多个频率发生源来产生用于下变频接收信号的载波信号。 结合具有窄频率范围和精细频率分辨率的数字频率参考110，使用具有宽频率范围和粗略频率分辨率的模拟频率参考114。 多载波信号乘以接收信号以进行多级下变频，产生基带信号。 频率跟踪模块108测量基带信号中存在的残余频率误差。 然后，测量的残余频率误差用于通过处理器调整由多个频率发生源114和110产生的载波信号的频率。 版权所有（C）2010，JPO＆INPIT

    SIGNALING AND DETERMINATION OF SLOT AND MINI-SLOT STRUCTURE
    3.
    发明专利
    SIGNALING AND DETERMINATION OF SLOT AND MINI-SLOT STRUCTURE 未知

    公开(公告)号：AU2021261888A1

    公开(公告)日：2021-12-02

    申请号：AU2021261888

    申请日：2021-11-03

    Applicant: QUALCOMM INC

    Inventor： JI TINGFANG ,  SORIAGA JOSEPH ,  GAAL PETER ,  JIANG JING ,  SMEE JOHN

    IPC: H04L5/00

    Abstract: Wireless communications systems, methods, and techniques related to signaling and determining slot and mini-slot structures are provided. A first wireless communication device transmits a first signal according to a first numerology including at least a first tone spacing. The first signal indicates a second numerology including at least a second tone spacing. The first wireless communication device transmits a second signal according to the second numerology. The first signal includes a physical broadcast channel (PBCH) signal. The second numerology is independent from the first numerology. Different slot/mini-slot structures may be utilized for varying channel types to support mixed numerology arrangements. Embodiments may utilize single and varied slot structures; single slot structures may be decoupled from transmission numerology and varied slot structures may be defined based on reference numerology. Other aspects, embodiments, and features are also claimed and described.

    ULTRA RELIABLE LINK DESIGN
    6.
    发明专利
    ULTRA RELIABLE LINK DESIGN 未知

    公开(公告)号：SG10201902385PA

    公开(公告)日：2019-04-29

    申请号：SG10201902385P

    申请日：2015-07-15

    Applicant: QUALCOMM INC

    Inventor： JI TINGFANG ,  SMEE JOHN ,  SORIAGA JOSEPH ,  BHUSHAN NAGA ,  AZARIAN YAZDI KAMBIZ ,  MUKKAVILLI KRISHNA ,  GOROKHOV ALEXEI ,  GAAL PETER

    Abstract: ULTRA RELIABLE LINK DESIGN Techniques are described for wireless communication. A first method includes measuring, by a first device, a condition of a wireless channel; and generating at least one channel side information feedback message based on the measured condition of the wireless channel. The at least one channel side information feedback message provides information on a relationship of a set of parameters, including a data rate parameter, an error probability parameter, and at least one of a deadline parameter or a transmission link parameter. A second method includes measuring, by a first device, interference on a wireless channel; identifying an interfering device for the wireless channel based on the measurement; and generating a channel side information feedback message based on the measured interference on the wireless channel The channel side information feedback message indicates the interfering device for the wireless channel and a correlation of interference from the interfering device with time or frequency. Fig. 4

    8.
    发明专利
    未知

    公开(公告)号：AT418195T

    公开(公告)日：2009-01-15

    申请号：AT03729592

    申请日：2003-01-07

    Applicant: QUALCOMM INC

    Inventor： JAYARAMAN SRIKANT ,  CORBATON IVAN ,  SMEE JOHN

    IPC: H03M13/01 ,  H04L1/00 ,  H04B1/7105 ,  H04B1/712 ,  H04L1/02

    Abstract: Methods and apparatus are presented herein for determining log likelihood ratios (LLRs) for code symbols. Pilot and code symbols are transmitted over diversity channels, which can be modeled as a slowly time varying system. A formulation for a multipath gain vector is derived herein based on the slowly time varying model. The multipath gain vector is then solved using iterative procedures. Using the solved multipath gain vector, the LLRs for code symbols are computed.

    Multiple analog and digital downconversion
    9.
    发明专利
    Multiple analog and digital downconversion 未知

    公开(公告)号：AU2002363722C1

    公开(公告)日：2008-12-11

    申请号：AU2002363722

    申请日：2002-11-08

    Applicant: QUALCOMM INC

    Inventor： FERNANDEZ-CORBATON IVAN JESUS ,  SMEE JOHN ,  JAYARAMAN SRIKANT

    IPC: H03D7/00 ,  H03D1/00 ,  H03J7/04 ,  H04B1/26 ,  H04B1/707 ,  H04L27/00

    Abstract: A carrier recovery method and apparatus using multiple stages of carrier frequency recovery are disclosed. A receiver uses multiple frequency generation sources to generate carrier signals used to downconvert a received signal. An analog frequency reference having a wide frequency range and coarse frequency resolution is used in conjunction with a digital frequency reference having a narrow frequency range and fine frequency resolution. The multiple carrier signals are multiplied by a received signal to effect a multi-stage downconversion, resulting in a baseband signal. A frequency tracking module measures the residual frequency error present in the baseband signal. The measured residual frequency error is then used to adjust the frequencies of the carrier signals generated by the multiple frequency generation sources.

    Configuración de símbolo de ráfaga común de enlace ascendente
    10.
    发明专利
    Configuración de símbolo de ráfaga común de enlace ascendente 未知

    公开(公告)号：ES2874625T3

    公开(公告)日：2021-11-05

    申请号：ES17757640

    申请日：2017-08-11

    Applicant: QUALCOMM INC

    Inventor： WANG RENQIU ,  XU HAO ,  GAAL PETER ,  CHEN WANSHI ,  JI TINGFANG ,  PATEL SHIMMAN ,  SMEE JOHN

    IPC: H04L5/00

    Abstract: Un procedimiento (1900) para comunicación inalámbrica, que comprende: identificar (1905) un símbolo de ráfaga común de enlace ascendente para transmisión de uno o más tipos de información en una subtrama de comunicación inalámbrica autónoma; determinar (1910) uno o más tipos de información que se va a transmitir en el símbolo de ráfaga común de enlace ascendente; seleccionar (1915) una de una forma de onda de transmisión de multiplexación por división de frecuencia de portadora única, SC­FDM, una forma de onda de transmisión de multiplexación por división ortogonal de frecuencia, OFDM, o una forma de onda de transmisión mixta de SC­FDM y OFDM para transmisión del símbolo de ráfaga común de enlace ascendente en base al menos en parte al uno o más tipos de información que se va a transmitir en el símbolo de ráfaga común de enlace ascendente, en el que cuando se selecciona la forma de onda de transmisión de SC­FDM para transmisión del símbolo de ráfaga común de enlace ascendente, la transmisión comprende seleccionar una secuencia (505) de un conjunto de secuencias (505, 510, 515, 520) en base al menos en parte a la información que se va a transmitir en el símbolo de ráfaga común de enlace ascendente, identificando dicha secuencia (505) dicha información, y en el que las diferentes secuencias del conjunto de secuencias (505, 510, 515, 520) corresponden a diferentes desplazamientos cíclicos de una secuencia básica; y transmitir el símbolo de ráfaga común de enlace ascendente.

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