公开(公告)号：US20210399780A1

公开(公告)日：2021-12-23

申请号：US17467107

申请日：2021-09-03

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Ashwin Sampath ,  Sundar Subramanian ,  Junyi Li ,  Vasanthan Raghavan

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04B7/0456 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.

公开(公告)号：US11191097B2

公开(公告)日：2021-11-30

申请号：US14964101

申请日：2015-12-09

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Sundar Subramanian ,  Jung Ho Ryu ,  Ashwin Sampath ,  Junyi Li

IPC: H04W72/12 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

Abstract: A base station may transmit scheduling information comprising one or more first downlink messages to a first user equipment (UE) in a first beam. The base station may transmit one or more second downlink messages to a second UE in a second beam. In response to the transmission of the one or more first downlink messages, the base station may receive one or more first uplink control messages from the first UE in a time slot. In response to the transmission of the one or more second downlink messages, the base station may receive one or more second uplink control messages from the second UE in the same time slot. The one or more second uplink control messages may be frequency-orthogonal or spreading code-orthogonal to the one or more first uplink control messages.

公开(公告)号：US20210359747A1

公开(公告)日：2021-11-18

申请号：US17444171

申请日：2021-07-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Bilal Sadiq ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

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

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In some aspects, a base station may send 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 base station may send, in association with the beam modification command, a reference signal using at least one transmit beam of the set of transmit beams, where a first portion of the reference signal is sent in a first set of symbols and a second portion of the reference signal is received in a second set of symbols.

公开(公告)号：US11140667B2

公开(公告)日：2021-10-05

申请号：US15921026

申请日：2018-03-14

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC: H04W72/04 ,  H04L27/26 ,  H04W56/00 ,  H04L5/00 ,  H04J11/00

Abstract: Techniques are described for wireless communication. In one method, a user equipment (UE) receives a timing synchronization signal (TSS) and a physical broadcast channel (PBCH), with the TSS based at least in part on a timing of the TSS within a broadcast channel transmission time interval (BCH TTI); determines the timing of the TSS within the BCH TTI; and demodulates the PBCH based at least in part on the TSS. In another method, a base station allocates resources for a TSS and a PBCH within a BCH TTI; determines the TSS based at least in part on a timing of the TSS within the BCH TTI; and transmits, on the resources allocated for the TSS and the PBCH, the TSS and the PBCH, with the TSS transmitted as a demodulation reference signal (DMRS) for the PBCH on at least one port used to transmit the TSS and the PBCH.

公开(公告)号：US11116006B2

公开(公告)日：2021-09-07

申请号：US15807132

申请日：2017-11-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Tao Luo ,  Bilal Sadiq ,  Junyi Li ,  Sundar Subramanian

IPC: H04W74/00 ,  H04W52/14 ,  H04W52/24 ,  H04W52/36 ,  H04L1/00 ,  H04W52/50 ,  H04W74/08 ,  H04W52/48

Abstract: Methods, systems, and devices for wireless communication are described that provide for selecting different uplink transmission parameters for transmission or retransmission of a random access message. A user equipment (UE) may retransmit a random access message to a base station during a random access procedure if an initial transmission of the random access message was unsuccessfully received by the base station. The UE may select a different transmission beam, uplink resource, or transmission power for retransmission of the random access message. The selection may be based on path loss associated with synchronization signals or previous transmissions. The selection may also be based on a maximum number of retransmissions.

公开(公告)号：US11095358B2

公开(公告)日：2021-08-17

申请号：US17001496

申请日：2020-08-24

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Tao Luo ,  Sundar Subramanian ,  Junyi Li

IPC: H04M1/00 ,  H04B7/08 ,  H04B7/06 ,  H01Q1/24 ,  H04B7/0404 ,  H04B7/0417 ,  H04W16/28 ,  H04W28/02 ,  H04W40/24 ,  H04W74/08

Abstract: Methods, apparatuses, and computer-readable mediums associated with a user equipment (UE) and a base station are provided for herein. In aspects, a UE may receive, from a base station, a beam modification command indicating at least one beam index for communicating through at least one beam on a channel and indicating the channel corresponding to the at least one beam. In an aspect, each beam index of the at least one beam index indicating at least a direction for communicating through a corresponding beam of the at least one beam, where the beam modification command may be received in a MAC CE. The UE may communicate, with the base station, through the at least one beam corresponding to the at least one beam index on the channel.

公开(公告)号：US11075682B2

公开(公告)日：2021-07-27

申请号：US16657960

申请日：2019-10-18

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Bilal Sadiq ,  Junyi Li

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: A first apparatus may send, to a base station in a first carrier frequency, a request associated with determination of a first beam used for communication between the base station and the UE. The first apparatus may communicate with the base station in a second carrier frequency based on the request associated with the determination of the first beam, the first carrier frequency being different from the second carrier frequency. A second apparatus may receive, from a base station in a first carrier frequency, a message associated with determination of a first beam used for communication between the base station and the UE. The second apparatus may communicate with the base station in a second carrier frequency based on the message associated with the determination of the first beam, the first carrier frequency being different from the second carrier frequency.

公开(公告)号：US11070335B2

公开(公告)日：2021-07-20

申请号：US16746585

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Juergen Cezanne ,  Sundar Subramanian ,  Junyi Li

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

Abstract: An apparatus for wireless communication selects a recommendation for the need. The apparatus selects the resource to transmit a phase tracking reference signal based on a condition of a communication system. The apparatus performs at least one of transmitting an indication of the selected recommendation for the resource to a second wireless communication device or transmitting at least one of information or a reference signal to the second device to assist the second device in determining the resource. In an aspect, the selection may be made based on receiving a request for a recommendation from the second wireless communication device or the transmitting the at least one of the information or the reference signal are based on a request received.

公开(公告)号：US11063733B2

公开(公告)日：2021-07-13

申请号：US16184913

申请日：2018-11-08

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/14 ,  H04L5/16 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/0408 ,  H04W52/34 ,  H04L5/00 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify a set of power configurations for a plurality of communications with at least one target device. The set of power configurations may be based at least in part on a type of signal, a type of channel, a parameter of the wireless device, a parameter of the target device, or a combination thereof. The wireless device may then determine a duplexing mode for the plurality of communications based at least in part on the set of power configurations. The duplexing mode may be, for example, a full duplex mode or a half-duplex mode. The wireless device may then transmit the plurality of communications to and/or receive the plurality of communications from the at least one target device according to the set of power configurations and the selected duplexing mode.

公开(公告)号：US20210167940A1

公开(公告)日：2021-06-03

申请号：US17166655

申请日：2021-02-03

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L7/04 ,  H04L5/00 ,  H04L27/26 ,  H04J1/02 ,  H04W52/36 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. Synchronization signals may be transmitted using a set of phase offsets over different component carriers or using a single component carrier for each antenna port. For example, a base station may identify a set of synchronization signals (e.g., a set of primary synchronization signals (PSSs)) to be transmitted over one or multiple component carriers. In some cases, each PSS may be associated with a different component carrier, and the base station may apply a different phase offset to each PSS when transmitting the set of PSSs on the component carriers. In some examples, the base station may transmit the PSSs on the component carriers using a different antenna port for each component carrier.