公开(公告)号：US20210226687A1

公开(公告)日：2021-07-22

申请号：US16749879

申请日：2020-01-22

Applicant: Qualcomm Incorporated

Inventor： Parisa Cheraghi ,  Veljko Boljanovic ,  Alexei Yurievitch Gorokhov

IPC: H04B7/08 ,  H04B7/0495 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a digital simulation to determining a precoding matrix indicator (PMI) associated with a digital reception beam. A base station may send, to the UE, a reference signal, and the UE may generate digital sector beams spanning a set of oversampled digital reception beams. The digital sector beams may be generated based on the number of antennas of the UE and a Kaiser Window configuration. The UE may perform a coarse beam search procedure on the reference signal using the set of digital sector beams and select a digital sector beam for a refined beam search used to determine a PMI for reporting to the base station.

公开(公告)号：US11071160B2

公开(公告)日：2021-07-20

申请号：US15808541

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Vasanthan Raghavan ,  Sundar Subramanian ,  Alexei Yurievitch Gorokhov ,  Juergen Cezanne ,  Junyi Li

IPC: H04W76/19 ,  H04B7/0408 ,  H04B7/06 ,  H04B7/0456 ,  H04L7/00 ,  H04L7/04 ,  H04W16/28 ,  H04B1/3827

Abstract: Certain aspects of the present disclosure provide techniques for signaling information regarding beams used for data and control transmissions to a UE. For example, a method for wireless communications by a user equipment (UE), may generally include signaling information to a base station (BS) that the UE is seeking recovery of a beamformed link between the BS and the UE, and participating in recovery of the beamformed link in accordance with the information. A method for wireless communications by a base station (BS), may generally include receiving information from a user equipment (UE) that the UE is seeking recovery of a beamformed link between the BS and the UE, and participating in recovery of the beamformed link in accordance with the information.

公开(公告)号：US11050465B2

公开(公告)日：2021-06-29

申请号：US16449293

申请日：2019-06-21

Applicant: QUALCOMM Incorporated

Inventor： Parisa Cheraghi ,  Alexei Yurievitch Gorokhov

IPC: H04B7/0417 ,  H04B17/336 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06

Abstract: Aspects are provided allowing a UE configured for Type II channel state feedback (CSF) to determine based on one or more antenna configurations or channel conditions whether to use the Type II codebook or to revert to a Type I codebook when computing CSF. Based on this determination, the UE may compute CSF based on the Type I codebook in situations where the performance gain of Type II codebooks may be reduced, thereby saving computational power, transmission power, and/or overhead when computing and reporting CSI feedback. The UE may subsequently transmit the CSF computed based on the Type I codebook in the allocated resources for Type II CSI feedback without the need for a separate signaling format, thereby simplifying and enabling reuse of the CSI feedback procedure.

公开(公告)号：US11038621B2

公开(公告)日：2021-06-15

申请号：US16578183

申请日：2019-09-20

Applicant: QUALCOMM Incorporated

Inventor： Igor Gutman ,  Parisa Cheraghi ,  Michael Levitsky ,  Alexei Yurievitch Gorokhov

IPC: H04L12/26 ,  H04L1/00 ,  H04L25/02

Abstract: Aspects of the disclosure relate to dynamically adapting the mapping between spectral efficiencies and channel quality indicators in real-time based on the channel conditions. In some examples, a scheduled entity (e.g., a UE) may maintain two or more predefined tables or other mappings, each including a respective mapping between spectral efficiency threshold values and channel quality indicators for a respective channel type. The UE may then calculate respective weighted sums of the spectral efficiency threshold values across the two or more predefined tables based on the current wireless channel. For example, the UE may estimate the wireless channel and determine respective weights to be applied to the spectral efficiency threshold values across the two or more predefined tables based on the channel estimate. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US11019620B2

公开(公告)日：2021-05-25

申请号：US14567993

申请日：2014-12-11

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Krishna Kiran Mukkavilli ,  Peter Ang ,  Michael Alexander Howard ,  Rotem Cooper

IPC: H04W72/04 ,  H04L5/26 ,  H04B7/26 ,  H04L5/00 ,  H04W72/12 ,  H04L5/14 ,  H04W76/15

Abstract: Aspects of the present disclosure provide for the pairing of an inter-band carrier with a time division duplex (TDD) carrier. If the paired band is a frequency division duplex (FDD) band, then base stations and mobile devices may transmit and receive additional thin control channels on FDD carriers to enable full duplex operations. If the paired band is a TDD band, then a conjugate or inverse carrier may be used such that full duplex, or a close approximation thereto, is achieved. With the introduction of a paired channel and fast control channels, rapid uplink/downlink switching may be achieved for TDD carriers efficiently and effectively. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11018787B2

公开(公告)日：2021-05-25

申请号：US15608851

申请日：2017-05-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Tao Luo ,  Sundar Subramanian ,  Juergen Cezanne ,  Ashwin Sampath ,  Alexei Yurievitch Gorokhov ,  Junyi Li ,  Bilal Sadiq

IPC: H04J4/00 ,  H04J1/06 ,  H04L27/26 ,  H04B7/26 ,  H04L1/08 ,  H01Q3/26 ,  H04B7/06 ,  H04B7/216 ,  H04J11/00 ,  H04L5/00 ,  H04L25/02 ,  H04L1/00

Abstract: The apparatus may be a base station. The apparatus processes a first group of synchronization signals. The apparatus processes a second group of synchronization signals. The apparatus performs a first transmission by transmitting the processed first group of the synchronization signals in a first synchronization subframe. The apparatus performs a second transmission by transmitting the processed second group of the synchronization signals in a second synchronization subframe.

公开(公告)号：US10972920B2

公开(公告)日：2021-04-06

申请号：US13753213

申请日：2013-01-29

Applicant: QUALCOMM Incorporated

Inventor： Valentin Alexandru Gheorghiu ,  Masato Kitazoe ,  Brian Clarke Banister ,  Alexei Yurievitch Gorokhov ,  Tingfang Ji ,  Shivratna Giri Srinivasan ,  Amir Farajidana

IPC: H04W24/00 ,  H04L5/00 ,  H04W24/10 ,  H04L1/00

Abstract: Methods and apparatus for performing reference signal (RS) metric measurements in different parts of a channel bandwidth are described. One example method generally includes receiving signaling indicating one or more frequency bands within an operating frequency band of a current serving cell for performing reference signal (RS) metric measurements, performing the measurements on the one or more frequency bands, and reporting the measurements.

公开(公告)号：US10958379B2

公开(公告)日：2021-03-23

申请号：US15973365

申请日：2018-05-07

Applicant: QUALCOMM Incorporated

Inventor： Hobin Kim ,  Hari Sankar ,  Alexei Yurievitch Gorokhov ,  Michael Lee McCloud ,  Joseph Binamira Soriaga

IPC: H04L1/08 ,  H04L1/18 ,  H04L1/00 ,  H04W92/10 ,  H04L5/00 ,  H03M13/00 ,  H04L27/34

Abstract: Aspects of the present disclosure relate to retransmissions of data within wireless communication networks. For a retransmission, at least a portion of the encoded bits of an original transmission may be mapped to different bit locations in one or more modulated symbols based on a non-random mapping rule. In some examples, the encoded bits of a symbol may be reversed within the symbol for a retransmission. In other examples, the first and last encoded bits within a symbol may be switched for a retransmission. Other non-random mapping rules, such as a bit location offset, may also be used to map encoded bits to different bit locations in the modulated symbol within a retransmission.

公开(公告)号：US10887035B2

公开(公告)日：2021-01-05

申请号：US15608799

申请日：2017-05-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Tao Luo ,  Sundar Subramanian ,  Juergen Cezanne ,  Ashwin Sampath ,  Alexei Yurievitch Gorokhov ,  Junyi Li ,  Bilal Sadiq

IPC: H01Q3/26 ,  H04B7/06 ,  H04B7/26 ,  H04J1/06 ,  H04L5/00 ,  H04B7/216 ,  H04J11/00 ,  H04L25/02 ,  H04L27/26 ,  H04W56/00 ,  H04L1/08 ,  H04L1/00

Abstract: The apparatus may be a base station. The apparatus processes a plurality of synchronization signals by performing time-division multiplexing (TDM) of at least one of a plurality of first synchronization signals of different types and at least one of the plurality of second synchronization signals of different types, the plurality of synchronization signals including the plurality of first synchronization signals and the plurality of second synchronization signals. The apparatus transmits the processed synchronization signals to a user equipment (UE).

公开(公告)号：US20200267700A1

公开(公告)日：2020-08-20

申请号：US16790716

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Yi Huang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Amir Aminzadeh Gohari ,  Aamod Khandekar

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. Techniques are described herein for performing out-of-order processing. The UE may receive a first downlink channel at a first time and a second downlink channel at a second time. The UE may determine that a priority of the second downlink channel is different (e.g., higher) than a priority of the first downlink channel. The UE may determine that a first uplink transmission associated with the first downlink channel is to be transmitted after a second uplink transmission associated with the second channel based on the different priorities. The UE may set one or more operations based on these determinations. In some cases, the UE may suspend processing the of the first downlink channel to process the second downlink channel.