公开(公告)号：US11569877B2

公开(公告)日：2023-01-31

申请号：US17255134

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Gokul Sridharan ,  Wei Yang ,  Taesang Yoo ,  Peter Gaal

IPC: H04B7/0456 ,  H04W52/08 ,  H04B7/06 ,  H04B7/0491

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) having partially coherent antennas may be configured for simultaneous transmissions on groups of antennas. To achieve the benefits of simultaneous transmissions using groups of antenna that are partially coherent, without having the transmissions affect each other, the UE may apply a hybrid closed-loop multiple-input multiple-output (MIMO) scheme among each antenna in the antenna groups where phase coherence can be maintained Following the hybrid closed-loop MIMO scheme, the UE may apply a transparent diversity scheme across each antenna of the groups. Alternatively, the UE may first apply the transparent diversity scheme and next apply the hybrid closed-loop MIMO scheme. By applying a hybrid closed-loop MIMO scheme, and a transparent diversity scheme, the UE may fully realize its resources and contribute to an improved spatial diversity for a MIMO system.

公开(公告)号：US20220376756A1

公开(公告)日：2022-11-24

申请号：US17326747

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Gokul Sridharan ,  Krishna Kiran Mukkavilli

IPC: H04B7/06 ,  H04W72/04 ,  H04L1/00 ,  H04W24/10 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A first device (e.g., a user equipment (UE)) may receive signaling indicating a set of channel state information (CSI) report configurations for sidelink communications between the first device and a second device. The first device may then receive a request from the second device for a CSI report according to a first CSI report configuration from the set of CSI report configurations. The first device may perform channel measurements based on receiving the request and may generate the CSI report using the channel measurements according to the first CSI configuration. In some cases, the first device may determine whether to additionally generate the CSI report using one or more previous channel measurements based on whether the previous channel measurements were taken according to the same CSI report. The first device may then transmit the generated CSI report to the second device.

公开(公告)号：US20220369245A1

公开(公告)日：2022-11-17

申请号：US17322748

申请日：2021-05-17

Applicant: QUALCOMM Incorporated

Inventor： Kazuki Takeda ,  Peter Gaal ,  Juan Montojo ,  Alberto Rico Alvarino ,  Gokul Sridharan ,  Gene Fong ,  Wanshi Chen ,  Tao Luo

IPC: H04W52/36 ,  H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use dynamic power aggregation techniques to perform instantaneous transmit power adjustments in an uplink carrier aggregation configuration. For example, the UE may dynamically adjust the instantaneous transmit power with network assistance. In some cases, the base station may configure a set of power aggregation parameters to control the instantaneous transmit power behavior of the UE. The UE may adjust the instantaneous transmit power in accordance with the power aggregation parameters. In some other cases, the base station may configure the UE to report one or more parameters. Based on the report, the base station may determine a power aggregation configuration for the UE in a time interval. In some other cases, the UE may be configured to scale the instantaneous transmit power for individual component carriers in the carrier aggregation configuration.

公开(公告)号：US20220322332A1

公开(公告)日：2022-10-06

申请号：US17222753

申请日：2021-04-05

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Tao Luo ,  Xiaoxia Zhang ,  Jing Sun ,  Junyi Li ,  Juan Montojo ,  Gokul Sridharan

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

Abstract: Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may receive, from a base station, a control message including an indication of a reference signal configuration associated with one or more physical channels scheduled during a set of time intervals. The UE may identify that demodulation reference signal is absent in a first time interval. In some examples, the UE may determine, based on the control message, a location for transmitting a phase tracking reference signal in the first time interval of the set of time intervals. The UE may then transmit the phase tracking reference signal in the first time interval at the determined location.

公开(公告)号：US20220312442A1

公开(公告)日：2022-09-29

申请号：US17210193

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Gokul Sridharan ,  Hung Dinh Ly ,  Peter Gaal

IPC: H04W72/12 ,  H04W72/14 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may be configured with periodic uplink grants that provide a number of repetitions and a redundancy version (RV) sequence for the repetitions. Prior to the start of an uplink grant period, the UE may determine a set of slots that are available for uplink transmissions in the uplink grant period. Based on the set of slots, the UE may determine a corresponding RV for repetitions of the uplink communication associated with each slot. The slots with uplink transmissions within the uplink grant period may be non-contiguous. Repetitions of an uplink communication may be configured to be transmitted across multiple uplink grant periods, which may be triggered based on a threshold value associated with the repetitions.

公开(公告)号：US20220312383A1

公开(公告)日：2022-09-29

申请号：US17216402

申请日：2021-03-29

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Gokul Sridharan ,  Yi Huang

IPC: H04W72/02 ,  H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control message identifying a frequency hop configuration that configures the UE to use frequency hopping when transmitting repetitions of an uplink shared channel transmission. The UE, the base station, or both may determine, based on the UE being configured with the frequency hop configuration, a frequency hop for each repetition of the uplink shared channel transmission. Each frequency hop may be determined based on a corresponding uplink shared channel index for a respective repetition a frequency hop for each repetition of the uplink shared channel transmission. The uplink shared channel index may be an uplink transmission occasion index, or a repetition index. The UE may transmit the repetitions of the uplink shared channel transmission using respective frequency hops in accordance with the determination and the frequency hop configuration.

公开(公告)号：US11438862B2

公开(公告)日：2022-09-06

申请号：US17307796

申请日：2021-05-04

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Gokul Sridharan ,  Jay Kumar Sundararajan ,  Hwan Joon Kwon ,  Wanshi Chen ,  Krishna Kiran Mukkavilli

IPC: H04W64/00 ,  H04L5/00 ,  H04W72/04 ,  H04W28/16

Abstract: In a positioning session for a user equipment (UE), one or more base stations may receive and derive positioning measurements from uplink (UL) transmission from the UE that include a physical resource block (PRB) interlaced waveform based on at least one of interlaced physical uplink control channel (PUCCH) resource blocks, interlaced physical uplink shared channel (PUSCH) RBs resource blocks, interlaced sounding reference signal (SRS), interlaced uplink (UL) positioning reference signal (PRS), or a combination thereof. The interlaced waveforms span a greater wavelength than if interlacing were not used, and an enhanced accuracy requirement for the positioning measurements based on the span may be used for the positioning measurements. The UL interlaced PRBs may be used for UL positioning measurements for combined downlink (DL) and UL positioning measurements. The base station may report the positioning measurements along with the channel used and enhanced accuracy requirements to a location server for positioning.

公开(公告)号：US11424973B2

公开(公告)日：2022-08-23

申请号：US17306759

申请日：2021-05-03

Applicant: QUALCOMM Incorporated

Inventor： Saeid Sahraei ,  Gokul Sridharan ,  Hung Dinh Ly ,  June Namgoong ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Peter Gaal ,  Taesang Yoo ,  Shimman Arvind Patel

IPC: H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a resource allocation indicating a set of transmission tones comprising a set of data tones and a set of peak reduction tones (PRTs), wherein the resource allocation indicates locations for the set of data tones and locations for the set of PRTs within a particular bandwidth, wherein the locations for the set of PRTs are arranged relative to the locations for the set of data tones according to a PRT sequence, and wherein the PRT sequence comprises a plurality of contiguous PRTs arranged relative to a plurality of contiguous data tones or a pseudo-random pattern generated using a pseudo-random number generator; and transmit a data transmission using a waveform based at least in part on the resource allocation. Numerous other aspects are provided.

公开(公告)号：US11424887B2

公开(公告)日：2022-08-23

申请号：US16991513

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Gabi Sarkis ,  Wei Yang ,  Muhammad Sayed Khairy Abdelghaffar ,  Gokul Sridharan ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. According to one or more aspects, a device, such as a user equipment (UE), may receive, from one or more base stations during a first time unit, a control signal including an indication of a reference signal bundling configuration associated with one or more physical channel types which may be potentially scheduled during a set of time units after the first time unit. The UE may determine the set of time units based on the indication of the reference signal bundling configuration. Additionally or alternatively, the UE may receive scheduling configuration of one or more physical channels, and the one or more physical channels during one or more second time units of the set of time units. The UE may then bundle the one or more physical channels based on the reference signal bundling configuration.

公开(公告)号：US20220248476A1

公开(公告)日：2022-08-04

申请号：US17647439

申请日：2022-01-07

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud TAHERZADEH BOROUJENI ,  Hung Dinh Ly ,  Tao Luo ,  Gokul Sridharan

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L5/00

Abstract: Aspects of the present disclosure provide apparatuses, methods, processing systems, and computer readable mediums for determining, such as by a user equipment (UE), a bundle size for demodulation reference signal (DMRS) bundling for an uplink random access channel (RACH) message sent with repetition and transmitting the uplink RACH message with DMRS bundling according to the determined bundle size. For example, in some aspects of the present disclosure, the uplink RACH message is sent with a number of repetitions and the bundle size is determined as a function of the number of repetitions. In some aspects, the bundle size is determined based on operation band. In some aspects, the bundle size is determined, based on a duplexing mode in which the UE is operating. In some aspects, the bundle size is determined, at least in part, based on signaling from the base station.