公开(公告)号：AU2016233808B2

公开(公告)日：2020-07-30

申请号：AU2016233808

申请日：2016-02-29

Applicant: QUALCOMM INC

Inventor： JIANG JING ,  MUKKAVILLI KRISHNA ,  SORIAGA JOSEPH BINAMIRA ,  JI TINGFANG ,  LI CHIH PING ,  SMEE JOHN ,  BHUSHAN NAGA

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04L5/14 ,  H04W72/12

Abstract: The disclosure relates in some aspects to a scalable transmission time interval (TTI) and hybrid automatic repeat request (HARQ) design. The TTI is scalable to, for example, achieve latency and/or efficiency tradeoffs for different types of traffic (e.g., mission critical traffic versus traffic with more relaxed latency requirements). In the event a longer TTI is employed, various techniques are disclosed for ensuring a fast turn-around HARQ, thereby maintaining a high level of communication performance.

公开(公告)号：NZ725291A

公开(公告)日：2020-01-31

申请号：NZ72529115

申请日：2015-05-07

Applicant: QUALCOMM INC

Inventor： JI TINGFANG ,  SMEE JOHN ,  SORIAGA JOSEPH ,  BHUSHAN NAGA ,  GAAL PETER ,  GOROKHOV ALEXEI ,  MUKKAVILLI KRISHNA ,  HOWARD MICHAEL ,  COOPER ROTEM ,  ANG PETER

IPC: H04W72/12 ,  H04W76/25

Abstract: Aspects of the disclosure provide for a thin control channel structure that can be utilized to enable multiplexing of two or more data transmission formats. For example, a thin control channel may carry information that enables ongoing transmissions utilizing a first, relatively long transmission time interval (TTI) to be punctured, and during the punctured portion of the long TTI, a transmission utilizing a second, relatively short TTI may be inserted. This puncturing is enabled by virtue of a thin channel structure wherein a control channel can carry scheduling information, grants, etc., informing receiving devices of the puncturing that is occurring or will occur. Furthermore, the thin control channel can be utilized to carry other control information, not being limited to puncturing information. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：ES2729491T3

公开(公告)日：2019-11-04

申请号：ES15784835

申请日：2015-10-06

Applicant: QUALCOMM INC

Inventor： JIANG JING ,  SORIAGA JOSEPH ,  JI TINGFANG ,  SMEE JOHN ,  GAAL PETER ,  MUKKAVILLI KRISHNA ,  BHUSHAN NAGA ,  GOROKHOV ALEXEI

IPC: H04L5/00 ,  H04W72/06

Abstract: Un procedimiento de comunicación inalámbrica en un equipo de usuario, UE (115; 115-a; 115-b), que comprende: recibir un primer conjunto de señales piloto (210) basadas, al menos en parte, en una configuración de transmisión piloto periódica; recibir una ráfaga de baja latencia que comprende un segundo conjunto integrado de señales piloto (215) basadas al menos en parte en una configuración de transmisión piloto de ráfaga y que comprende una o más transmisiones de canal de control (315-a), en el que la configuración de transmisión piloto de ráfaga es diferente de la configuración de transmisión piloto periódica; y convertir las una o más transmisiones del canal de control (315-a) en datos piloto para la desmodulación de la ráfaga de baja latencia.

公开(公告)号：AU2017335607A1

公开(公告)日：2019-03-14

申请号：AU2017335607

申请日：2017-09-23

Applicant: QUALCOMM INC

Inventor： JI TINGFANG ,  SORIAGA JOSEPH BINAMIRA ,  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.

公开(公告)号：AT507639T

公开(公告)日：2011-05-15

申请号：AT03765773

申请日：2003-07-18

Applicant: QUALCOMM INC

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

IPC: H04L25/03 ,  H04L27/01 ,  H04B7/005 ,  H04L25/00

Abstract: A method and apparatus for a decision feedback equalizer wherein a correction term is used to compensate for slicer errors, thus avoiding error propagation. Filter coefficients for the equalizer are selected so as to minimize a cost function for the equalizer, including a correction term as a function of the energy of the filter coefficients. The equalizer includes a coefficient generator responsive to the correction term. One embodiment estimates a transmitted symbol from a received sample as a function of Signal-to-Interference and Noise Ratio (SINR) of the received sample. The received sample is quantized and mapped to a region of a grid overlaid on the transmitted symbol constellation. The region may correspond to a symbol estimate value or may be processed further to obtain a symbol estimate value.

公开(公告)号：AT446625T

公开(公告)日：2009-11-15

申请号：AT05798731

申请日：2005-09-20

Applicant: QUALCOMM INC

Inventor： SMEE JOHN ,  HOU JILEI ,  KIRAN KIRAN ,  BHUSHAN NAGA ,  ATTAR RASHID

IPC: H04L1/18 ,  H04B7/26

Abstract: Methods and apparatuses to selectively assign interlace preference factors to a plurality of user terminals to use a plurality of interlaces. These methods and apparatuses may improve capacity compared to a system that allows each user terminal to transmit data in every interlace.

公开(公告)号：BRPI0519547A2

公开(公告)日：2009-01-27

申请号：BRPI0519547

申请日：2005-12-22

Applicant: QUALCOMM INC

Inventor： SMEE JOHN ,  HOU JILEI ,  PFISTER HENRY ,  TOMASIN STEFANO

IPC: H04B1/707

Abstract: A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

公开(公告)号：BR0213986A

公开(公告)日：2005-04-19

申请号：BR0213986

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 ,  H03D7/16

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.

公开(公告)号：WO2008005917A3

公开(公告)日：2008-02-21

申请号：PCT/US2007072636

申请日：2007-07-02

Applicant: QUALCOMM INC ,  GREGORY SHERMAN A ,  SMEE JOHN

Inventor： GREGORY SHERMAN A ,  SMEE JOHN

IPC: H04B7/06 ,  H04B7/04 ,  H04B7/08 ,  H04W16/24 ,  H04W84/00

CPC classification number: H04B7/0613 ,  H04B7/0491 ,  H04B7/0837 ,  H04W16/24 ,  H04W84/005 ,  Y02D70/00 ,  Y02D70/444

Abstract: A base station for establishing a picocell is configured so as to provide multiple sectors, with spatial diversity between sectors. The combination of the multiple sectors and the spatial diversity reduces signal power requirements in the air interface within a confined space and provides improvements in quality of service.

Abstract translation: 用于建立微微小区的基站被配置为提供多个扇区，在扇区之间具有空间分集。 多个扇区和空间分集的组合降低了在限制空间内的空中接口中的信号功率需求，并提供了服务质量的改进。

公开(公告)号：WO0219563A3

公开(公告)日：2003-01-23

申请号：PCT/US0127234

申请日：2001-08-31

Applicant: QUALCOMM INC

Inventor： JALALI AHMAD ,  SMEE JOHN ,  AGASHE PARAG

IPC: H04B7/005 ,  H04B7/06 ,  H04B7/26 ,  H04L1/00 ,  H04L25/03

CPC classification number: H04W52/343 ,  H04B7/005 ,  H04B7/0617 ,  H04W52/40

Abstract: In a CDMA data communication system capable of variable rate data transmission, a time-division power assignment cyclically reduces the carrier power level to at least one sector to reduce interference in neighboring sectors. The base station determines a time-division power assignment for each sector and generates signals according to the power assignment. The mobile unit (700) generates filter coefficients corresponding to each power level. The mobile unit estimates Carrier Signal-to-Interference (C/I) to determine a data rate for each power level. Previous iterations of the equalizer (710) are stored and used to refine future estimates.

Abstract translation: 在能够进行可变速率数据传输的CDMA数据通信系统中，时分功率分配循环地将载波功率电平降低到至少一个扇区，以减少相邻扇区中的干扰。 基站确定每个扇区的时分功率分配，并根据功率分配产生信号。 移动单元（700）产生对应于每个功率电平的滤波器系数。 移动单元估计载波信号到干扰（C / I）以确定每个功率电平的数据速率。 均衡器（710）的先前迭代被存储并用于改进未来的估计。