公开(公告)号：US20170346545A1

公开(公告)日：2017-11-30

申请号：US15488403

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Bilal SADIQ ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04B7/08 ,  H04W28/02 ,  H04B7/0404 ,  H04B7/06 ,  H01Q1/24 ,  H04B7/0417 ,  H04W40/24 ,  H04W16/28

CPC classification number: H04B7/0814 ,  H01Q1/245 ,  H04B7/0404 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0628 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/088 ,  H04W16/28 ,  H04W28/0231 ,  H04W40/248

Abstract: A UE may receive a beam modification command that indicates a set of transmit beam indexes corresponding to a set of transmit beams of a base station, and each transmit beam index of the set of transmit beam indexes may indicate at least a transmit direction for transmitting a transmit beam by the base station. The UE may determine a set of receive beam indexes corresponding to receive beams of the UE based on the set of transmit beam indexes, and each receive beam index of the set of receive beam indexes may indicate at least a receive direction for receiving a receive beam by the UE. The UE may receive, from the base station, a signal through at least one receive beam corresponding to at least one receive beam index included in the set of receive beam indexes.

公开(公告)号：US20170346543A1

公开(公告)日：2017-11-30

申请号：US15488401

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Bilal SADIQ ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04B7/08 ,  H04W28/04 ,  H04W28/02 ,  H04B7/0404 ,  H04B7/06 ,  H01Q1/24 ,  H04B7/0417 ,  H04W40/24 ,  H04W16/28

Abstract: A user equipment (UE) may be configured to perform a random access channel (RACH) procedure with a base station. As part of the RACH procedure, the base station may transmit a contention resolution message to the UE. The UE may receive, from the base station, the contention resolution message. The contention resolution message may indicate at least a beam index corresponding to a beam, such as a transmit beam of the base station. The UE may determine whether the beam index is applicable to the UE. The UE may communicate with the base station through the beam corresponding to the beam index when the beam index is applicable to the UE. For example, the UE may send an acknowledgement message to the base station, and the base station and UE may switch to a beam corresponding to the beam index after communication of the acknowledgement message.

公开(公告)号：US20170346535A1

公开(公告)日：2017-11-30

申请号：US15488399

申请日：2017-04-14

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Bilal SADIQ ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04B7/0417 ,  H04W40/08 ,  H04W28/02 ,  H04B7/0404 ,  H01Q1/24 ,  H04B7/06 ,  H04B7/0426 ,  H04W52/14 ,  H04W16/28

CPC classification number: H04B7/0417 ,  H01Q1/245 ,  H04B7/0404 ,  H04B7/0426 ,  H04B7/0452 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0621 ,  H04B7/088 ,  H04W16/28 ,  H04W28/0221 ,  H04W40/08 ,  H04W52/146 ,  H04W74/0833

Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.

公开(公告)号：US20170303141A1

公开(公告)日：2017-10-19

申请号：US15468825

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Tao LUO ,  Bilal SADIQ ,  Juergen CEZANNE ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04W16/28 ,  H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04B17/336 ,  H04W74/08

CPC classification number: H04W72/0413 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/336 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04W16/28 ,  H04W72/02 ,  H04W72/046 ,  H04W74/0833

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：US20170302354A1

公开(公告)日：2017-10-19

申请号：US15468698

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Tao LUO ,  Bilal SADIQ ,  Juergen CEZANNE ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04B7/06 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0413 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/336 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04W16/28 ,  H04W72/02 ,  H04W72/046 ,  H04W74/0833

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 receives from the base station a number of beams whose information should be fed back to 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.

公开(公告)号：US20170289966A1

公开(公告)日：2017-10-05

申请号：US15365893

申请日：2016-11-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Bilal SADIQ ,  Juergen CEZANNE ,  Junyi LI

IPC: H04W72/04 ,  H04L5/00 ,  H04W76/04 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/1469 ,  H04W72/0413 ,  H04W72/1289 ,  H04W76/27 ,  H04W88/02

Abstract: The present disclosure relates to wireless communication in mmW networks. The apparatus may be a base station. The apparatus may be configured to determine a first symbol index and a second symbol index associated with downlink resources allocated to a UE. The first symbol index may indicate when the downlink resources begin in a subframe, and the second symbol index may indicate when the downlink resources end in the subframe. The apparatus may be configured to transmit an indication of the first symbol index and the second symbol index to the UE.

公开(公告)号：US20240324019A1

公开(公告)日：2024-09-26

申请号：US18578170

申请日：2021-08-06

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Linhai HE ,  Peter GAAL ,  Chao WEI ,  Muhammad Nazmul ISLAM ,  Tingfang JI ,  Prashant SHARMA ,  Murali MENON

IPC: H04W74/0833 ,  H04L5/14

CPC classification number: H04W74/0833 ,  H04L5/14

Abstract: In a user equipment (UE) of a wireless communication network, the UE configured to operate in half duplex frequency division duplexing (HD-FDD) mode in the network the UE configures for one or more conditions under which the UE will transmit under HD-FDD mode in uplink (UL) to the network and not receive in downlink (DL) from the network during a Random Access Channel (RACH) procedure. The UE determines whether the configured one or more conditions obtain for a particular RACH procedure. Upon determining that the configured one or more conditions obtain for the particular RACH procedure, the UE transmits under HD-FDD mode in UL during the particular RACH procedure in accordance with the configured one or more conditions.

公开(公告)号：US20240314786A1

公开(公告)日：2024-09-19

申请号：US18669164

申请日：2024-05-20

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Karl Georg HAMPEL ,  Junyi LI ,  Sundar SUBRAMANIAN ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE

IPC: H04W72/20 ,  H04W16/02 ,  H04W16/10 ,  H04W16/28 ,  H04W76/10 ,  H04W88/08 ,  H04W92/20

CPC classification number: H04W72/20 ,  H04W16/28 ,  H04W76/10 ,  H04W16/02 ,  H04W16/10 ,  H04W88/08 ,  H04W92/20

Abstract: Backhaul resources may be allocated to different wireless communication links between different base stations, and local redistribution of resources among base stations may be utilized to account for variations in signal quality and/or variations in traffic experienced by different nodes of the backhaul network. A first access node function (ANF) may determine a need for additional backhaul resources, and may transmit a request message to one or more user equipment functions (UEFs) for additional backhaul resources. A UEF that receives the request message may forward the request to an associated second ANF. The second ANF, if it has backhaul resources available that the first ANF can use, may send a response to the first ANF, via the associated UEF, and the first ANF may use the additional resources that were originally allocated to the second ANF.

公开(公告)号：US20240146449A1

公开(公告)日：2024-05-02

申请号：US18279593

申请日：2021-04-16

Applicant: QUALCOMM Incorporated

Inventor： Ori SHENTAL ,  Thomas Joseph RICHARDSON ,  Liangming WU ,  Kexin XIAO ,  Ashwin SAMPATH ,  Muhammad Nazmul ISLAM ,  Michael DIMARE ,  Michael Ethan BERKOWITZ ,  Changlong XU ,  Hao XU

IPC: H04L1/00 ,  H04W28/04

CPC classification number: H04L1/0042 ,  H04W28/04

Abstract: Apparatus, methods, and computer-readable media for facilitating distribution matching via reversed compression are disclosed herein. An example method for wireless communication at a wireless transmitter includes decompressing a first sequence of information bits for wireless transmission to output a sequence of shaped symbols. The example method also includes compressing the sequence of shaped symbols to output a second sequence of compressed information bits. The example method also includes transmitting, to a receiver, a signal comprising the sequence of shaped symbols.

公开(公告)号：US20240040609A1

公开(公告)日：2024-02-01

申请号：US17873827

申请日：2022-07-26

Applicant: QUALCOMM Incorporated

Inventor： Venkata Siva Prasad Rao GUDE ,  Muhammad Nazmul ISLAM ,  Ambarish TRIPATHI ,  Daniel Alejandro OLMOS ,  Vinesh Kisan KAVISKAR

IPC: H04W74/00 ,  H04W74/08

CPC classification number: H04W74/004 ,  H04W74/0833

Abstract: Aspects relate to random access channel procedures. In some examples, if a user equipment (UE) has not successfully received a random access channel (RACH) downlink message prior to the end of a random access window for a first RACH attempt, the UE may elect to proceed with a second RACH attempt. For example, the UE may determine whether there are any remaining downlink symbols available during the random access window to receive the RACH downlink message. If not, the UE may retransmit a physical RACH (PRACH) preamble.