公开(公告)号：ES2787123T3

公开(公告)日：2020-10-14

申请号：ES16706954

申请日：2016-02-10

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  DAMNJANOVIC ALEKSANDAR ,  PAPALEO MARCO ,  MALIK RAHUL ,  GAAL PETER

IPC: H04W74/08 ,  H04L1/18 ,  H04W16/14 ,  H04W72/12 ,  H04W88/06

Abstract: Un procedimiento para comunicación inalámbrica, que comprende: detectar (2005) una indicación de comunicaciones de primera tecnología de acceso por radio, RAT, que ocupan una banda de espectro de radiofrecuencia compartida; y configurar (2010), como respuesta a la detección, al menos un parámetro de una segunda RAT usada por un dispositivo para competir por un acceso a la banda de espectro de radiofrecuencia compartida; en el que configurar el al menos un parámetro de la segunda RAT comprende: configurar un intervalo de números a partir del cual se selecciona un número aleatorio, en el que el número aleatorio determina un número de ranuras de evaluación de disponibilidad de canal, CCA, durante las cuales el dispositivo realiza un procedimiento de CCA ampliada, caracterizado por que: la etapa de configurar el intervalo de números comprende: incrementar un límite inferior del intervalo de números.

公开(公告)号：AU2017206761B2

公开(公告)日：2020-09-10

申请号：AU2017206761

申请日：2017-01-12

Applicant: QUALCOMM INC

Inventor： CHENDAMARAI KANNAN ARUMUGAM ,  LUO TAO ,  PATEL CHIRAG ,  YERRAMALLI SRINIVAS ,  KADOUS TAMER

IPC: H04W74/00

Abstract: Techniques for performing listen before talk (LBT) channel contention procedures in a shared radio frequency spectrum band are provided. The LBT techniques may include a shortened LBT procedure that may be selected if a base station has reserved a shared channel for a duration of expected user equipment (UE) uplink transmissions, and a full LBT procedure that may be selected if the base station has not reserved the channel for the duration of expected UE uplink transmissions. The shortened LBT procedure may include detecting energy levels of the channel for a relatively short time period relative to the full LBT procedure. The shortened LBT procedure may be selected if a time period between a UE receiving a grant of uplink resources and the beginning of the uplink resources is less than a threshold time value.

公开(公告)号：AU2019225176A1

公开(公告)日：2020-08-20

申请号：AU2019225176

申请日：2019-02-22

Applicant: QUALCOMM INC

Inventor： JOHN WILSON MAKESH PRAVIN ,  YERRAMALLI SRINIVAS ,  LUO TAO ,  NAGARAJA SUMEETH ,  AKKARAKARAN SONY

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described techniques provide for the identification of a sequence of beamforming parameters that are used for communications between a user equipment (UE) and a base station using a sequence of transmission beams. A UE may measure received reference signals that are transmitted in a series of downlink transmission beams from a base station, and report measurement parameters associated with the downlink transmission beams to the base station as part of a beam tracking and beam refinement procedure. The base station may provide transmission configuration indicator (TCI) states that are associated with each transmission beam. The TCI states may be recorded over a course of a periodic movement of the UE, and may be used deterministically to identify beamforming parameters for transmission and reception of a subsequent series of downlink transmission beams when the UE makes a subsequent same periodic movement.

公开(公告)号：CA2981985C

公开(公告)日：2020-08-18

申请号：CA2981985

申请日：2016-05-10

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  DAMNJANOVIC ALEKSANDAR ,  CHEN WANSHI ,  GAAL PETER

IPC: H04W74/08 ,  H04B7/024

Abstract: Control flow enhancement for LTE-U operation. Aspects include enhancements to control flow processing for floating TTI operation for unlicensed cells including ePDCCH processing, aperiodic CSI reporting, DRX operation, and extended TTIs at the end of a transmission burst. The described aspects also include enhancements for reference signal configuration for unlicensed cells, processing of joint grants for multiple unlicensed cells, ePDCCH processing for partial subframes, and multi-channel DRS operation.

公开(公告)号：HUE048335T2

公开(公告)日：2020-07-28

申请号：HUE16724567

申请日：2016-05-10

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  DAMNJANOVIC ALEKSANDAR ,  CHEN WANSHI ,  GAAL PETER

IPC: H04L27/00 ,  H04L5/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W74/08

公开(公告)号：SG11202002996RA

公开(公告)日：2020-05-28

申请号：SG11202002996R

申请日：2018-10-31

Applicant: QUALCOMM INC

Inventor： LIU CHIH-HAO ,  YERRAMALLI SRINIVAS ,  KADOUS TAMER

IPC: H04B1/7143 ,  H04B1/7156 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may identify synchronization signals and a set of frequency hopping channels for communications as part of a discovery reference signal (DRS) in an anchor channel. The set of frequency hopping channels may include a sequence to indicate an order for utilizing each hopping channel of the set of hopping channels. In some cases, the hopping sequence may be a pseudo random sequence. Additionally, the hopping sequence may be defined such that a non-repeating hopping sequence or pattern which visits all hopping frequencies before revisiting the same frequency is utilized. As such, each hopping channel may be utilized an equal number of times within a period of time and have an approximately equal occupancy time to the other hopping channels.

公开(公告)号：ES2754202T3

公开(公告)日：2020-04-16

申请号：ES14782042

申请日：2014-09-25

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  MALLADI DURGA PRASAD ,  GAAL PETER ,  LUO TAO ,  WEI YONGBIN ,  BHUSHAN NAGA ,  XU HAO ,  JI TINGFANG ,  DAMNJANOVIC ALEKSANDAR ,  YERRAMALLI SRINIVAS

IPC: H04L5/00 ,  H04L27/00 ,  H04W16/14 ,  H04W72/04

Abstract: Un procedimiento para comunicaciones inalámbricas, que comprende: determinar (1905; 2005; 2105; 2205; 2305) una primera estructura de subtrama que tiene una primera duración de subtrama para comunicarse en una primera portadora; determinar (1910; 2010; 2110; 2210; 2310) una segunda estructura de subtrama que tiene una segunda duración de subtrama para comunicarse en una segunda portadora, siendo la segunda duración de subtrama diferente a la primera duración de subtrama; asignar (2115) recursos utilizando al menos un par de bloques de recursos, RB, adyacentes de la segunda estructura de subtrama, funcionando juntos los RB adyacentes de la segunda estructura de subtrama como un único RB de la primera estructura de subtrama; y comunicar (1915; 2020; 2120; 2220; 2315, 2320) con al menos un nodo utilizando al menos la segunda estructura de subtrama que tiene la segunda duración de subtrama, en función de la asignación.

公开(公告)号：CA2924085C

公开(公告)日：2020-04-14

申请号：CA2924085

申请日：2014-09-19

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  CHEN WANSHI ,  XU HAO

IPC: H04L5/00 ,  H04W16/14 ,  H04W74/08

Abstract: Methods, systems, apparatuses, and devices are described for wireless communication. From a plurality of physical carriers associated with a clear channel assessment (CCA) performed by a device, one of the physical carriers for which the CCA was successful may be identified. A virtual carrier associated with a wireless data transmission by the device may be mapped to the identified one of the physical carriers.

公开(公告)号：ZA201707895B

公开(公告)日：2020-01-29

申请号：ZA201707895

申请日：2017-11-21

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  DAMNJANOVIC ALEKSANDAR ,  CHEN WANSHI ,  GAAL PETER

Abstract: Control flow enhancement for LTE-U operation. Aspects include enhancements to control flow processing for floating TTI operation for unlicensed cells including ePDCCH processing, aperiodic CSI reporting, DRX operation, and extended TTIs at the end of a transmission burst. The described aspects also include enhancements for reference signal configuration for unlicensed cells, processing of joint grants for multiple unlicensed cells, ePDCCH processing for partial subframes, and multi-channel DRS operation.

公开(公告)号：AU2018299782A1

公开(公告)日：2019-12-19

申请号：AU2018299782

申请日：2018-06-07

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LIU CHIH-HAO ,  KADOUS TAMER

IPC: H04W24/00

Abstract: The extension of NB-IoT and eMTC communications into the unlicensed spectrum introduces a number of problems associated with channel quality measurement and reporting. A method, apparatus, and computer readable medium are presented that provide a technique for channel quality measurement and reporting that addressed such problems. A UE apparatus measures a CQI measurement for each of a plurality of groups of hopping frequencies, wherein a set of hopping frequencies is grouped into the plurality of groups and reports a CQI for each of the plurality of groups. A base station may configure the UE for CQI reporting and may receive a CQI for each of a plurality of groups of hopping frequencies, wherein a set of hopping frequencies is grouped into the plurality of groups. The set of hopping frequencies comprise frequencies in an unlicensed spectrum.