公开(公告)号：US10278146B2

公开(公告)日：2019-04-30

申请号：US15412362

申请日：2017-01-23

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Sundar Subramanian ,  Junyi Li ,  Muhammad Nazmul Islam ,  Navid Abedini

IPC: H04B7/00 ,  H04W56/00 ,  H04W76/15 ,  H04W72/04 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08 ,  H04W92/04 ,  H04W92/10 ,  H04W92/20

Abstract: The use of a radio access technology (RAT) may enable wireless communication using one or more node functions at a wireless node, such as a base station or access node. Additionally, multiple wireless nodes may communicate in a network using a schedule that is aligned with a frame structure. For example, a wireless node may establish a link with different wireless nodes using a RAT that supports a synchronized frame structure, such as a millimeter wave (mmW) RAT. The wireless nodes may instantiate one or more node functions, such as an access node function (ANF) and a user equipment function (UEF). The wireless nodes may then communicate according to active and suspended modes using the node functions, where the communication is based on a schedule aligned with the frame structure.

公开(公告)号：US20190109625A1

公开(公告)日：2019-04-11

申请号：US16133205

申请日：2018-09-17

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Juergen Cezanne ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Navid Abedini ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0408 ,  H04W16/28 ,  H04W72/04

Abstract: Wireless communication techniques that include beam training performed to aid mobile devices in identifying beams for use in communications (e.g., uplink communications) are discussed. A mobile device may transmit to a base station an indication of a level of beamforming reciprocity of the mobile device. A base station/gNB may transmit an indication of one or more transmission beams to be used by the mobile device for uplink wireless communication based on the level of beamforming reciprocity. The one or more transmission beams to be used by the mobile device for uplink communication may include a reciprocal transmission beam. A mobile device not capable of full beamforming reciprocity may determine a transmission beam through uplink beam training. A mobile device may transmit to a base station information using at least one of the one or more transmission beams. Other aspects and features are also claimed and discussed.

公开(公告)号：US10244492B2

公开(公告)日：2019-03-26

申请号：US15336330

申请日：2016-10-27

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Bilal Sadiq

IPC: H04W56/00 ,  H04W74/08 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. The method may include transmitting a first synchronization signal in a set of beam directions during a first symbol period of a synchronization subframe and transmitting a second synchronization signal in another set of beam directions during a second symbol period of the synchronization subframe. The second set of beam directions may be spatially interleaved with the first set of beam directions. Additionally, the method may include monitoring a first and second set of beam directions during a first and second symbol period of a random access subframe, respectively. Additionally, the method may include receiving, from a base station, first and second synchronization signals in a synchronization subframe, decoding the first synchronization signal, and transmitting an access request based at least in part on the decoded first synchronization signal.

公开(公告)号：US10219270B2

公开(公告)日：2019-02-26

申请号：US15176484

申请日：2016-06-08

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Junyi Li ,  Ashwin Sampath ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04W16/28 ,  H04W56/00 ,  H04W72/08 ,  H04L5/00 ,  H04L5/16

Abstract: Aspects of the present disclosure provided techniques for wireless communications by a base station. An exemplary method generally includes transmitting, on a narrowband region within a wider system bandwidth, a directional primary synchronization signal (DPSS), receiving feedback information from one or more user equipments (UEs) based on the DPSS, wherein the feedback information comprises an indication of a bandwidth capability of a UE that transmitted the feedback information, and allocating resources to the one or more UEs within at least one of the wider system bandwidth or the narrowband region based, at least in part, on the feedback information.

公开(公告)号：US20190014500A1

公开(公告)日：2019-01-10

申请号：US15988844

申请日：2018-05-24

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Karl Georg Hampel ,  Junyi Li ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne

IPC: H04W28/08 ,  H04L27/26 ,  H04B7/06 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may establish a wireless connection between the wireless node and a second wireless node in a wireless backhaul communications network. The wireless node may identify a first set of common resources for use in at least one of access communications or backhaul communications. The first set of common resources is allocated for common use by the wireless nodes of the wireless backhaul communications network. The wireless node may identify a second set of partitioned resources available for at least one of access communications or backhaul communications. The second set partitioned into a plurality of subsets each allocated for use by selected subsets of one or more of the wireless nodes of the wireless backhaul communications network.

公开(公告)号：US10172071B2

公开(公告)日：2019-01-01

申请号：US15789633

申请日：2017-10-20

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Junyi Li

IPC: H04W48/12 ,  H04W76/10 ,  H04B7/06 ,  H04L27/26 ,  H04L5/00 ,  H04W56/00 ,  H04W74/00 ,  H04W36/00 ,  H04W76/15 ,  H04W72/04 ,  H04W52/04 ,  H04W16/28

Abstract: Certain aspects of the present disclosure provide techniques for assisted power control for an uplink signal transmitted during a RACH procedure. A UE may determine a transmit power for transmitting a message during a RACH procedure with a secondary BS, based at least in part, on communication between the UE and a primary BS. The UE may transmit the message to the second BS during the RACH procedure based, at least in part, on the determined transmit power.

公开(公告)号：US20180376429A1

公开(公告)日：2018-12-27

申请号：US16015021

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Bilal Sadiq ,  Navid Abedini

IPC: H04W52/14 ,  H04W16/28 ,  H04W74/08 ,  H04W76/27 ,  H04W72/04

CPC classification number: H04W52/146 ,  H04B7/0617 ,  H04W16/28 ,  H04W52/16 ,  H04W52/242 ,  H04W52/325 ,  H04W52/42 ,  H04W72/042 ,  H04W72/0473 ,  H04W74/008 ,  H04W74/0833 ,  H04W76/27

Abstract: A transmit beamforming gain and a receive beamforming gain may be used when adjusting an uplink transmit power. For example, a user equipment (UE) may receive downlink communications from a base station on a receive beam having a beamforming gain that is different from a beamforming gain for an uplink transmit beam. The UE may adjust an uplink transmit power (e.g., for transmitting a random access channel (RACH)) based on a difference in the beamforming gains. For example, a parameter representing the difference in the beamforming gains, in addition to a maximum allowed transmit power, a target preamble received power, and an estimated path loss, may be used when determining an adjusted uplink transmit power for a RACH transmission. The adjustment may result in a higher or lower transmit power depending on the difference in the receive beamforming gain and the transmit beamforming gain.

公开(公告)号：US20180367270A1

公开(公告)日：2018-12-20

申请号：US15996811

申请日：2018-06-04

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Miguel Rodrigo Castellanos Llorca ,  Jung Ryu ,  Sundar Subramanian ,  Juergen Cezanne ,  Junyi Li

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

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a first set of transmit beams and an associated first set of receive beams having a channel characteristic that is below a first threshold. The UE may identify, for each receive beam in the first set of receive beams, a transmit beam in a second set of transmit beams having a channel characteristic above a second threshold. The UE may identify a relative channel characteristic value between each transmit beam in the first set of transmit beams and each transmit beam in the second set of transmit beams. The UE may transmit a message that identifies the beams in the first and second set of transmit beams, the identified receive beam from the first set of receive beams for each beam in the first set of transmit beams, and the relative channel characteristic value.

公开(公告)号：US20180343628A1

公开(公告)日：2018-11-29

申请号：US16035314

申请日：2018-07-13

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Hung Ly ,  Tao Luo ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Sundar Subramanian

IPC: H04W56/00 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.

公开(公告)号：US10116483B2

公开(公告)日：2018-10-30

申请号：US15370266

申请日：2016-12-06

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Krishna Kiran Mukkavilli ,  Sundar Subramanian ,  Junyi Li

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: DM-RS symbols may be inserted in the beginning of a subframe, or in two parts of the subframe. In one aspect, a method, a computer-readable medium, and an apparatus for dynamically conveying DM-RS information are provided. The apparatus may be a base station. The apparatus may determine the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols. The apparatus may transmit the number of the DM-RS symbols and/or the locations within the subframe for transmission of the DM-RS symbols to a UE. In another aspect, a UE may receive the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols from a base station. The UE may decode the DM-RS symbols from the subframe based on the number of the DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols.