公开(公告)号：AU2017247134B2

公开(公告)日：2021-06-24

申请号：AU2017247134

申请日：2017-03-06

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SUBRAMANIAN SUNDAR ,  LUO TAO ,  CEZANNE JUERGEN ,  SADIQ BILAL ,  LI JUNYI

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a sounding reference signal (SRS) configuration for user equipment (UE). The base station may transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant message, and may include the SRS parameters or a location of the SRS parameters. That is, SRS parameters may be transmitted in a control channel with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS parameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base station may make its own environment measurements or assign SRS parameters autonomously. The UE may signal SRS transmissions to the base station according to the SRS grant message.

公开(公告)号：CA3016716C

公开(公告)日：2021-06-01

申请号：CA3016716

申请日：2017-04-03

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  SADIQ BILAL ,  LI JUNYI

IPC: H04W74/00 ,  H04B7/04 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08 ,  H04W72/54

Abstract: One apparatus may be configured to detect a set of beams from a base station. The apparatus may be further configured to select a beam of the set of beams. The apparatus may be further configured to determine at least one resource based on the selected beam. The apparatus may be further configured to transmit, on the at least one determined resource, a beam adjustment request to the base station. The request may indicate an index associated with the selected beam. Another apparatus may be configured to transmit a first set of beams. The other apparatus may be further configured to receive a beam adjustment request on at least one resource. The other apparatus may be further configured to determine a beam index of a beam in the first set of beams based on the request and the at least one resource.

公开(公告)号：AU2017252176B2

公开(公告)日：2021-05-13

申请号：AU2017252176

申请日：2017-03-27

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  LUO TAO ,  SADIQ BILAL ,  CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/08

Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals. The apparatus transmits, to the base station, a feedback signal including information about one or more beams selected from the plurality of beams, the feedback signal further including one or more candidate uplink precoders.

公开(公告)号：AU2017221142B2

公开(公告)日：2021-04-01

申请号：AU2017221142

申请日：2017-01-20

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SUBRAMANIAN SUNDAR ,  SAMPATH ASHWIN ,  CEZANNE JUERGEN ,  SADIQ BILAL ,  LI JUNYI ,  LUO TAO

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/08 ,  H04W24/10

Abstract: Various aspects of the disclosure relate to communicating uplink control information. As one example, a user equipment may send uplink control information to a base station. In some aspects, the number of symbols used to communicate the uplink control information may be based on a link gain associated with the UE and/or based on a payload size of the uplink control information. As another example, the user equipment may send channel information for a number of beams to the base station. In some aspects, the number of beams may be based on the type of channel that is used to send the uplink control information.

公开(公告)号：AU2017334457B2

公开(公告)日：2021-03-04

申请号：AU2017334457

申请日：2017-08-31

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  ABEDINI NAVID ,  SADIQ BILAL ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04W74/08

Abstract: A RACH preamble is transmitted from a UE using multiple antenna ports. A UE splits a data stream containing a RACH preamble into multiple streams corresponding to a same number of antenna ports of the UE. The UE multiplexes the copies of the RACH preamble according to a multiplexing scheme that enables a receiving eNB to discern the different channels used to transmit the signal from the different antenna ports. A RACH procedure is further accomplished in two steps instead of four by the UE then splitting a RACH payload to the same number of streams and multiplexing the RACH payload for transmission to the eNB. The eNB receives both transmissions, and may use the RACH preamble as a reference signal, and responds with a combined message with control information, random access response, and contention resolution information.

公开(公告)号：ES2805429T3

公开(公告)日：2021-02-12

申请号：ES17729985

申请日：2017-05-31

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  ABEDINI NAVID ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  CEZANNE JUERGEN ,  SAMPATH ASHWIN ,  GOROKHOV ALEXEI YURIEVITCH ,  LI JUNYI ,  SADIQ BILAL

IPC: H04B7/26 ,  H04W56/00

Abstract: Un procedimiento de comunicación inalámbrica por una estación base, que comprende: procesar (2202) una pluralidad de señales de sincronización realizando multiplexación por división de tiempo, TDM, de al menos una de una pluralidad de primeras señales de sincronización de diferentes tipos y al menos una de la pluralidad de segundas señales de sincronización de diferentes tipos, incluyendo la pluralidad de señales de sincronización la pluralidad de primeras señales de sincronización y la pluralidad de segundas señales de sincronización; y transmitir (2204) las señales de sincronización procesadas a un equipo de usuario, UE, en el que la pluralidad de primeras señales de sincronización incluye al menos una de una señal de sincronización primaria, PSS, una señal de sincronización secundaria, SSS, una señal de referencia de haz, BRS, una señal de sincronización extendida, ESS, o una señal de canal físico de radiodifusión, PBCH, y en el que al menos una de la ESS o una señal de referencia de desmodulación, DMRS, de la señal de PBCH se usa para transmitir al menos una parte de un índice de bloque de señal de sincronización.

公开(公告)号：SG11202009220YA

公开(公告)日：2020-11-27

申请号：SG11202009220Y

申请日：2019-02-25

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  ABEDINI NAVID ,  LEE HEECHOON ,  LUO TAO

IPC: H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a random access (RACH) procedure based on a selected synchronization signal block (SSB). During this RACH procedure, a base station may transmit physical downlink control channel (PDCCH) messages for UE RACH message handling. To receive PDCCH signaling for RACH Messages 2, 3, or 4 (Msg 2/3/4), the UE may identify a set of time resources used by the base station for transmitting SSBs that are not quasi-co-located (QCL) with the selected SSB. The UE may identify a Msg 2/3/4 search space that does not overlap with this identified set of resources, and may monitor this identified search space. The search space may correspond to a modified remaining minimum system information (RMSI) search space indicated by the base station, or a valid RMSI search space not indicated by the base station.

公开(公告)号：AU2017277570B2

公开(公告)日：2020-09-17

申请号：AU2017277570

申请日：2017-05-12

Applicant: QUALCOMM INC

Inventor： AKKARAKARAN SONY ,  LUO TAO ,  ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL

IPC: H04W74/08 ,  H04B7/00

Abstract: In a mmW network, a UE and a base station may establish a link using a RACH procedure. Because mmW and other band communications may rely on accurate beamforming to overcome link attention, the UE may need to provide beam information feedback to the base station. In particular, the UE may receive a beam-formed message from the base station during the RACH procedure. The UE may determine beam information based on the received beam-formed message during the RACH procedure. The UE may transmit a message to the base station during the RACH procedure, and the message may include the determined beam information.

公开(公告)号：AU2017271954B2

公开(公告)日：2020-09-17

申请号：AU2017271954

申请日：2017-04-17

Applicant: QUALCOMM INC

Inventor： ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  LUO TAO ,  SUBRAMANIAN SUNDAR ,  LI JUNYI

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W74/08

Abstract: A UE may receive, from a base station, a message requesting BSI. The UE may determine a number N of BSI reports to send to the base station, and each BSI report may indicate a beam index corresponding to a beam and a received power associated with the beam. The UE may send, to the base station, N BSI reports based on the message requesting BSI. The UE may receive, from the base station, a set of signals through a set of beams, and determine the received power for each signal of the set of signals received through each beam of the set of beams, each received power may be associated with a beam of the set of beams.

公开(公告)号：AU2019222468A1

公开(公告)日：2020-08-13

申请号：AU2019222468

申请日：2019-02-14

Applicant: QUALCOMM INC

Inventor： AKKARAKARAN SONY ,  LUO TAO ,  WANG XIAO FENG ,  SADIQ BILAL ,  JOHN WILSON MAKESH PRAVIN ,  NAM WOOSEOK ,  ZHOU YAN

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide a mechanism for a user equipment (UE) to identify an uplink transmit beam to be used for communicating with a base station. In some cases, the uplink transmit beam may be based on a recent uplink (or downlink) transmission or set of allocated resources. A base station may allocate communication resources for a UE. The UE may determine, based on the allocated communication resources, a default transmit beam for communicating with the base station. The UE and base station may (e.g., independently) identify a triggering condition for using the default transmit beam. The UE may transmit an uplink communication to the base station using the default transmit beam based on the triggering condition.