公开(公告)号：DE60315883T2

公开(公告)日：2008-05-15

申请号：DE60315883

申请日：2003-12-10

Applicant: QUALCOMM INC

Inventor： CHEN QINGXIN ,  PATEL SHIMMAN

IPC: H04W24/02 ,  H04L1/00 ,  H04L1/20

Abstract: Techniques to detect for DTX frames in a "primary" transmission that may be sent in a non-continuous manner using a "secondary" transmission that is sent during periods of no transmission for the primary transmission. The primary and secondary transmissions may be the ones sent on the F-DCCH and Forward Power Control Subchannel, respectively, in an IS-2000 system. In one method, a determination is first made whether or not a frame received for the primary transmission in a particular frame interval is a good frame (e.g., based on CRC). If the received frame is not a good frame, then a determination is next made whether the received frame is a DTX frame or an erased frame based on a number of metrics determined for the primary and secondary transmissions. The metrics may include symbol error rate of the received frame, secondary transmission (e.g., PC bit) energy, and received frame energy.

公开(公告)号：ES2282119T3

公开(公告)日：2007-10-16

申请号：ES00939822

申请日：2000-06-12

Applicant: QUALCOMM INC

Inventor： PATEL SHIMMAN ,  WILBORN THOMAS

IPC: H04L5/06 ,  H03G3/30 ,  H04B1/28 ,  H04B7/005 ,  H04B14/04 ,  H04J1/00 ,  H04J1/05

Abstract: Un procedimiento para procesar una señal multiportadora para descodificar, en el que la señal multiportadora incluye dos o más señales de espectro extendido, cada una de cuyas señales de espectro extendido está centrada en una subportadora correspondiente de la mencionada señal multiportadora, procedimiento que comprende: filtrar la señal multiportadora con un primer filtro (324) que tiene una anchura de banda mayor que una anchura de banda de una cualquiera de las señales de espectro extendido; y muestrear (330) la señal filtrada para generar muestras de tiempo discreto; filtrar las muestras de tiempo discreto con un correspondiente filtro de tiempo discreto (354) para proporcionar muestras filtradas, en el que cada filtro de tiempo discreto (354) tiene una anchura de banda adaptada a una anchura de banda de la señal particular de espectro extendido que se está procesando, escalar, con el respectivo elemento de escalamiento (412), las muestras filtradas por un factor de escalamiento, cuantificar, con el respectivo cuantificador (414), las muestras escaladas, medir, con el respectivo circuito de control de ganancia (356), una cantidad relacionada con una amplitud de las muestras cuantificadas, y ajustar el factor de escalamiento de acuerdo con la cantidad medida.

公开(公告)号：AT354222T

公开(公告)日：2007-03-15

申请号：AT00939822

申请日：2000-06-12

Applicant: QUALCOMM INC

Inventor： PATEL SHIMMAN ,  WILBORN THOMAS

IPC: H03G3/30 ,  H04B14/04 ,  H04J1/00 ,  H04J1/05 ,  H04L5/06 ,  H04B7/005 ,  H04B1/28

Abstract: A method and a receiver for processing a desired signal for decoding (i.e., by a decoder). In accordance with the method, an input signal that includes the desired signal and additional signals is received and filtered with a first filter having a bandwidth greater than a bandwidth of the desired signal. The filtered signal is then sampled to generate discrete time samples, which is then filtered with a discrete time matched filter. The filtered samples are then scaled with a scaling factor and quantized. A quantity related to an amplitude of the quantized samples (i.e., power) is measured, and the scaling factor is adjusted in accordance with the measured quantity. The quantized samples can be further processed (i.e., demodulated) and provided to a decoder. The desired signal can be a quadrature modulated signal, in which case matched filtering, scaling, and quantization are performed on the in-phase and quadrature components of the desired signal. The adjustment of the scaling factor can be performed by an automatic gain control (AGC) loop that compares the measured quantity (e.g., signal power of the quantized samples) against a predetermined value to generate error values. The AGC loop then filters the error values to generate the scaling factor. In an embodiment, the loop filtering can be performed with an integrator.

公开(公告)号：HK1066864A1

公开(公告)日：2005-04-01

申请号：HK04109624

申请日：2004-12-06

Applicant: QUALCOMM INC

Inventor： WILBORN THOMAS BRIAN ,  PATEL SHIMMAN ,  SIH GILBERT C ,  ABRISHAMKAR FARROKH

IPC: G01S11/02 ,  G01S19/25 ,  G01S19/26

Abstract: A velocity estimate is determined from a received signal by counting the number of times a signal in one multipath crosses a predetermined threshold in a given amount of time. A signal is received and a single multipath is extracted from the received signal. Instantaneous envelope values of the extracted multipath are calculated. A plurality of the instantaneous envelope values are used to calculate a running RMS value. A level crossing threshold is determined using the running RMS value. The number of times the instantaneous envelope value crosses the level crossing threshold is counted. The number of level crossings is mapped to a velocity estimate.

公开(公告)号：AU2002333608A1

公开(公告)日：2003-11-03

申请号：AU2002333608

申请日：2002-09-13

Applicant: QUALCOMM INC

Inventor： PATEL SHIMMAN ,  KAN ANDREW

IPC: H04B1/00 ,  H04B1/10 ,  H04B1/707

公开(公告)号：BR0107663A

公开(公告)日：2003-01-14

申请号：BR0107663

申请日：2001-01-17

Applicant: QUALCOMM INC

Inventor： ABRISHMKAR FARROKH ,  PATEL SHIMMAN

IPC: H04J13/00 ,  H04W52/02 ,  H04W68/00 ,  H04Q7/38

Abstract: A system for efficiently employing a quick paging channel signal to determine the presence of a forthcoming primary paging channel in a wireless communications system employing a quick paging channel and a primary paging channel. The system includes a first mechanism for selectively processing a first quick paging channel symbol and/or a second quick paging channel symbol of a received signal based on a first decision parameter and/or a second decision parameter and providing a first indication in response thereto. A second mechanism processes the first quick paging channel symbol in response to the first indication and provides a second indication in response thereto indicating whether a forthcoming primary paging channel signal should be received and processed. A third mechanism processes the second quick paging channel symbol in response to the first indication and the second indication and provides a third indication in response thereto specifying whether the primary paging channel should be received an processed. In a specific embodiment, the system is adapted for use with a mobile station and further includes a fourth mechanism for selectively employing the third mechanism when the second indication does not indicate that the forthcoming primary paging channel should be received and processed. The first decision parameter CSI1 is representative of a quality of a signal environment through which the received signal propagates and is described by the equation (I) where E pilot1 represents the normalized pilot energy of a portion of the pilot signal associated with the first quick paging symbol, and Î o1 represents a total energy of a portion of the received signal associated with the first quick paging symbol.

公开(公告)号：AU2793801A

公开(公告)日：2001-07-31

申请号：AU2793801

申请日：2001-01-17

Applicant: QUALCOMM INC

Inventor： ABRISHMKAR FARROKH ,  PATEL SHIMMAN

IPC: H04J13/00 ,  H04W52/02 ,  H04W68/00 ,  H04Q7/38

Abstract: A system for efficiently employing a quick paging channel signal to determine the presence of a forthcoming primary paging channel in a wireless communications system employing a quick paging channel and a primary paging channel. The system includes a first mechanism for selectively processing a first quick paging channel symbol and/or a second quick paging channel symbol of a received signal based on a first decision parameter and/or a second decision parameter and providing a first indication in response thereto. A second mechanism processes the first quick paging channel symbol in response to the first indication and provides a second indication in response thereto indicating whether a forthcoming primary paging channel signal should be received and processed. A third mechanism processes the second quick paging channel symbol in response to the first indication and the second indication and provides a third indication in response thereto specifying whether the primary paging channel should be received an processed. In a specific embodiment, the system is adapted for use with a mobile station and further includes a fourth mechanism for selectively employing the third mechanism when the second indication does not indicate that the forthcoming primary paging channel should be received and processed. The first decision parameter CSI1 is representative of a quality of a signal environment through which the received signal propagates and is described by the equation (I) where E pilot1 represents the normalized pilot energy of a portion of the pilot signal associated with the first quick paging symbol, and Î o1 represents a total energy of a portion of the received signal associated with the first quick paging symbol.

公开(公告)号：ES2894956T3

公开(公告)日：2022-02-16

申请号：ES16766120

申请日：2016-08-24

Applicant: QUALCOMM INC

Inventor： RICO ALVARINO ALBERTO ,  CHEN WANSHI ,  FAKOORIAN SEYED ALI AKBAR ,  GAAL PETER ,  PATEL SHIMMAN ,  VAJAPEYAM MADHAVAN ,  WANG RENQIU ,  LEI JING ,  XU HAO

IPC: H04L5/00

Abstract: Un método para un sistema de comunicación inalámbrica que admite el funcionamiento en una región de banda estrecha de un bloque de recursos único (615-a) de un ancho de banda del sistema (620), el método comprende: identificar (1105; 2705), mediante una estación base (105-c; 105), una ubicación de la región de banda estrecha (615-a) del ancho de banda del sistema (620) como un bloque de recursos único particular dentro de una región de banda ancha (610) del ancho de banda del sistema (620); y transmitir (1120; 2710), mediante la estación base (105-c; 105) a un equipo de usuario (115-c; 115), UE, una indicación de la ubicación del bloque de recursos único particular dentro de la región de banda ancha (610) del ancho de banda del sistema (620), en donde la indicación se transmite en uno o más de un bloque de información maestro, MIB o un bloque de información del sistema, SIB, que incluye la señalización de que la región de banda estrecha (615-a) está dentro del ancho de banda del sistema (620).

公开(公告)号：ES2879693T3

公开(公告)日：2021-11-22

申请号：ES17711428

申请日：2017-03-01

Applicant: QUALCOMM INC

Inventor： RICO ALVARINO ALBERTO ,  CHEN WANSHI ,  PATEL SHIMMAN ,  GRIOT MIGUEL

IPC: H04W48/16 ,  H04L12/18 ,  H04W4/90 ,  H04W52/02 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

Abstract: Un procedimiento (800) de comunicaciones inalámbricas que se realiza por un equipo de usuario "UE", que comprende: recibir (802) la información de adquisición de la célula asociada con una célula autónoma del servicio de difusión/multidifusión mejorado "eMBMS", en el que la información de adquisición de la célula se recibe en las subtramas de la red de frecuencia única de difusión sin multidifusión "no MBSFN" de la célula autónoma del eMBMS en base a la separación de la subportadora; detectar (804) un esquema para evitar el UE en base a una característica asociada con la información de adquisición de la célula; y realizar (806) la adquisición de la célula con la célula autónoma del eMBMS en base a la característica, en el que el esquema para evitar el UE se configura para hacer que un UE heredado omita la realización de la adquisición de la célula de la célula autónoma del eMBMS, en base al no reconocimiento de la característica por el UE heredado.

公开(公告)号：SG11201908819PA

公开(公告)日：2019-11-28

申请号：SG11201908819P

申请日：2018-05-03

Applicant: QUALCOMM INC

Inventor： HOSSEINI SEYEDKIANOUSH ,  CHEN WANSHI ,  PATEL SHIMMAN ,  GAAL PETER

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04

Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 November 2018 (08.11.2018) WIPO I PCT oimiolo VIII °nolo III oioim Ill num ois (10) International Publication Number WO 2018/204635 A2 (51) International Patent Classification: H04L 5/00 (2006.01) HO4W 72/04 (2009.01) (21) International Application Number: PCT/US2018/030880 (22) International Filing Date: 03 May 2018 (03.05.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/502,560 05 May 2017 (05.05.2017) US 15/969,586 02 May 2018 (02.05.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; Attn: International IP Administration, 5775 Morehouse Dri- ve, San Diego, CA 92121-1714 (US). (72) Inventors: HOSSEINI, Seyedkianoush; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). CHEN, Wanshi; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). PATEL, Shimman, Arvind; 5775 Morehouse Drive, San Diego, CA 92121-1714 (US). GAAL, Peter; 5775 More- house Drive, San Diego, CA 92121-1714 (US). (74) Agent: ANDERSON, Thomas, D.; Holland & Hart LLP, P.O. Box 11583, Salt Lake City, UT 84147 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (54) Title: SOUNDING REFERENCE SIGNAL CONFIGURATION AND TRANSPORT BLOCK SIZE SCALING IN LOW LA- TENCY SYSTEMS 115-a kr) 71' O 1 00 —1 O 205 200 FIG. 2 (57) : Methods, systems, and devices for wireless communication are described. A base station may transmit an indication of first and second configurations for sounding reference signal (SRS) transmissions during first and second transmission time intervals (TTIs) having different durations. A user equipment (UE) may identify an SRS to be transmitted and determine a configuration for the SRS transmission based on the TTI duration and the received indication of the first and second configurations. The UE may then transmit the SRS based on the configuration. A base station may receive an SRS during a TTI and may determine a channel quality based at least in part on the SRS. Additionally, a device may identify data to transmit during a TTI, determine a number of resource elements available for transmission of the data during a TTI, and determine a transport block size (TBS) for the data transmission based on the available resource elements. [Continued on next page] WO 2018/204635 A2 IMIOHOIIIMIIMENHIMIIMINIMMOIS SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: without international search report and to be republished upon receipt of that report (Rule 48.2(g))