公开(公告)号：CA3015382A1

公开(公告)日：2017-09-28

申请号：CA3015382

申请日：2017-03-24

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  DAMNJANOVIC ALEKSANDAR ,  GAAL PETER ,  MONTOJO JUAN

IPC: H04W74/08

Abstract: Techniques are described for wireless communication. One method for wireless communication at a user equipment (UE) includes receiving, over the air, information indicative of at least one type of LBT procedure to perform for an uplink transmission; identifying, from the received information, the at least one type of LBT procedure to perform for the uplink transmission; and performing, for a shared spectrum, the at least one type of LBT procedure for the uplink transmission. One method for wireless communication at a network access device includes scheduling an uplink transmission of a UE in a shared spectrum, and transmitting, over the air, information indicative of at least one type of LBT procedure to perform for the uplink transmission.

公开(公告)号：CL2017000262A1

公开(公告)日：2017-09-08

申请号：CL2017000262

申请日：2017-01-31

Applicant: QUALCOMM INC

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

IPC: H04W16/14 ,  H04W72/04 ,  H04W72/12

Abstract: TÉCNICAS PARA COMUNICACIONES INALÁMBRICAS SOBRE UNA BANDA DE ESPECTRO DE RADIOFRECUENCIA COMPARTIDA PUEDEN INCLUIR TÉCNICAS PARA TRANSMITIR TRANSMISIONES DE DATOS DE ENLACE ASCENDENTE UTILIZANDO RECURSOS DE ENLACE ASCENDENTE ASIGNADOS: LOS RECURSOS DE ENLACE ASCENDENTE ASIGNADOS PUEDEN INCLUIR UN CANAL DE ENLACE ASCENDENTE QUE COMPRENDE UN NÚMERO DE ENTRELAZADOS ASIGNADOS DE BLOQUES DE RECURSOS (RBs) PARA USO POR UN EQUIPO DO USUARIO (UE); UNA CORRIENTE DE DATOS ENTRANTE PUEDE SER PROCESADA Y LOS DATOS PUEDEN SER SEPARADOS EN CADA UNO DE LOS ENTRELAZADOS ASIGNADOS DE RBs PARA EL UE: DICHA SEPARACIÓN PUEDE SER A TRAVÉS DE LA DESMULTIPLEXIÓN DE LA CORRIENTE DE DATOS PARA OBTENER DATOS PARA LOS ENTRELAZADOS ASIGNADOS DE RBs; LOS DATOS DESMULTIPLEXADOS PUEDEN SER MAPEADOS SOBRE ELEMENTOS DE RECURSOS ASOCIADOS CON LOS ENTRELAZADOS ASIGNADOS DE LOS RBs, Y PUEDEN SER TRANSMITIDOS; DIFERENTES TIPOS DE CANALES DE ENLACE ASCENDENTE, TAL COMO UN CANAL DE CONTROL DE ENLACE ASCENDENTE FÍSICO (PUSCH), CANAL COMPARTIDO DE ENLACE ASCENDENTE FÍSICO (PUSCH) Y/O, UN CANAL DE ACCESO ALEATORIO FÍSICO (PRACH) PUEDEN SER ASIGNADOS A ENTRELAZADOS DE RBs EN UNA O MÁS SUBTRAMAS DE UNA TRAMA DE RADIO TRANSMITIDA.

公开(公告)号：BR112016020301A2

公开(公告)日：2017-08-15

申请号：BR112016020301

申请日：2015-02-11

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  CHEN WANSHI ,  LUO TAO

公开(公告)号：AU2016211216A1

公开(公告)日：2017-07-06

申请号：AU2016211216

申请日：2016-01-29

Applicant: QUALCOMM INC

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

IPC: H04W48/08 ,  H04W74/08

Abstract: Apparatus and methods for transmitting and discovering timing information during wireless communications are described herein. In an aspect, the systems and methods include monitoring at a user equipment (UE) over an unlicensed radio frequency spectrum band for a discovery signal from a network entity; receiving the discovery signal during a subframe from the network entity; and determining a current subframe location of the network entity based on the discovery signal, wherein the discovery signal includes timing information corresponding to the current subframe location.

公开(公告)号：AU2015298599A1

公开(公告)日：2017-02-02

申请号：AU2015298599

申请日：2015-07-24

Applicant: QUALCOMM INC

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

IPC: H04W72/12 ,  H04W16/14 ,  H04W72/04

Abstract: Techniques for wireless communications over a shared radio frequency spectrum band, may include techniques for transmitting uplink data transmissions using allocated uplink resources. Allocated uplink resources may include an uplink channel comprising a number of allocated interlaces of resource blocks (RBs) for use by a user equipment (UE). An incoming data stream may be processed and data separated into each of the allocated interlaces of RBs for the UE. Such separation may be through demultiplexing the data stream to obtain data for the allocated interlaces of RBs. The demultiplexed data may be mapped onto associated resource elements associated with the allocated interlaces of RBs, and transmitted. Different types of uplink channels, such as a physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH) and/or a physical random access channel (PRACH) may be allocated to interlaces of RBs in one or more subframes of a transmitted radio frame.

公开(公告)号：CA2979073A1

公开(公告)日：2016-10-20

申请号：CA2979073

申请日：2016-04-14

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  DAMNJANOVIC ALEKSANDAR

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. An eNB determines a CCA parameter for use by a UE in performing a CCA procedure for UL transmission and transmits an indication of the CCA parameter to the UE. The UE receives an indication of the CCA parameter for UL transmission from the eNB and performs the CCA procedure for UL transmission using the indicated CCA parameter. The UE may transmit to the eNB prior to receiving the indication of the CCA parameter. The eNB may use the report in determining the CCA parameter for use by the UE.

公开(公告)号：PH12016500086B1

公开(公告)日：2016-04-18

申请号：PH12016500086

申请日：2016-01-13

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  BHUSHAN NAGA ,  GAAL PETER

IPC: H04W74/08

Abstract: Methods, systems, and devices are described for wireless communications. In one method, a clear channel assessment (CCA) may be performed at a base station to determine availability of an unlicensed spectrum. A first waveform may be transmitted to a set of user equipments (UEs) over the unlicensed spectrum when available. The first waveform may indicate a first time period and a second time period during which the base station has channel access over the unlicensed spectrum. A second waveform may be received from one or more UEs responsive to the first waveform. Each second waveform may be received over the unlicensed spectrum during the first time period and may indicate that the respective UE has channel access over the unlicensed spectrum to receive data from the base station during the second time period.

公开(公告)号：AU2014290696A1

公开(公告)日：2016-03-03

申请号：AU2014290696

申请日：2014-06-30

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  BHUSHAN NAGA ,  GAAL PETER

IPC: H04W74/08

Abstract: Methods, systems, and devices are described for wireless communications. In one method, a clear channel assessment (CCA) may be performed at a base station to determine availability of an unlicensed spectrum. A first waveform may be transmitted to a set of user equipments (UEs) over the unlicensed spectrum when available. The first waveform may indicate a first time period and a second time period during which the base station has channel access over the unlicensed spectrum. A second waveform may be received from one or more UEs responsive to the first waveform. Each second waveform may be received over the unlicensed spectrum during the first time period and may indicate that the respective UE has channel access over the unlicensed spectrum to receive data from the base station during the second time period.

公开(公告)号：SG11201510113RA

公开(公告)日：2016-01-28

申请号：SG11201510113R

申请日：2014-06-30

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  BHUSHAN NAGA ,  GAAL PETER

IPC: H04W74/08

Abstract: Methods, systems, and devices are described for wireless communications. In one method, a clear channel assessment (CCA) may be performed at a base station to determine availability of an unlicensed spectrum. A first waveform may be transmitted to a set of user equipments (UEs) over the unlicensed spectrum when available. The first waveform may indicate a first time period and a second time period during which the base station has channel access over the unlicensed spectrum. A second waveform may be received from one or more UEs responsive to the first waveform. Each second waveform may be received over the unlicensed spectrum during the first time period and may indicate that the respective UE has channel access over the unlicensed spectrum to receive data from the base station during the second time period.

公开(公告)号：CA2952644A1

公开(公告)日：2015-12-23

申请号：CA2952644

申请日：2015-06-19

Applicant: QUALCOMM INC

Inventor： YERRAMALLI SRINIVAS ,  LUO TAO ,  SOMASUNDARAM KIRAN KUMAR ,  MALLADI DURGA PRASAD ,  BHUSHAN NAGA ,  WEI YONGBIN ,  DAMNJANOVIC ALEKSANDAR ,  CHEN WANSHI ,  ZHANG XIAOXIA ,  XU HAO ,  SUKHAVASI RAVI TEJA

IPC: H04W74/02 ,  H04W72/12

Abstract: The present disclosure provides methods and apparatuses for multi-carrier transmissions over adjacent channels that reduce self-jamming due to asymmetric interference. In an aspect, a large bandwidth load-base equipment (LBE) carrier may be provided such that CCA is performed jointly over the entire bandwidth. In another aspect, additional CCA timeslots may be used to synchronize the two carriers. In a further aspect, an extended CCA may be performed on a primary unlicensed carrier while a simple CCA may be performed on a secondary unlicensed carrier. In yet another aspect, LBE may be deployed on some carriers while frame-base equipment (FBE) may be deployed on other carriers.