公开(公告)号：US20220216966A1

公开(公告)日：2022-07-07

申请号：US17646042

申请日：2021-12-27

Applicant: QUALCOMM Incorporated

Inventor： Alexei Yurievitch GOROKHOV ,  Levent AYDIN

IPC: H04L5/00 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a first sounding reference signal (SRS) configuration, wherein the first SRS configuration indicates a number of antenna ports on which an SRS is to be transmitted. The UE may determine that the number of antenna ports indicated by the first SRS configuration exceeds an antenna capability of the UE. The UE may transmit one or more SRSs using a second SRS configuration based at least in part on determining that the first SRS configuration exceeds the antenna capability of the UE. Numerous other aspects are described.

公开(公告)号：US20220086844A1

公开(公告)日：2022-03-17

申请号：US17478026

申请日：2021-09-17

Applicant: QUALCOMM Incorporated

Inventor： Faris RASSAM ,  Hobin KIM ,  Hari SANKAR ,  Alexei Yurievitch GOROKHOV

IPC: H04W72/08 ,  H04L5/00

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for mitigating interference caused by legacy reference signals from neighbor cells (e.g., LTE cell-specific reference signals) to non-legacy downlink transmissions in a serving cell (e.g., NR/5G PDSCH transmissions).

公开(公告)号：US20210168701A1

公开(公告)日：2021-06-03

申请号：US17105430

申请日：2020-11-25

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Satashu GOEL ,  Arvind Vardarajan SANTHANAM ,  Chinmay Shankar VAZE ,  Alexei Yurievitch GOROKHOV ,  Brian Clarke BANISTER ,  Daniel AMERGA ,  Huan XU

IPC: H04W48/16 ,  H04B17/336

Abstract: A cell acquisition technique for 5G and other RATs is provided in which shallow scans are interleaved with deep scans. In each shallow scan, a UE determines whether a synchronization signal is received with sufficient signal quality over one period for the synchronization signal. In each deep scan, the UE determines whether the synchronization signal is received with sufficient signal quality over multiple periods for the synchronization signal.

公开(公告)号：US20210105749A1

公开(公告)日：2021-04-08

申请号：US17028714

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Ruhua HE ,  Raghu Narayan CHALLA ,  Yong LI ,  Parisa CHERAGHI ,  Peter GAAL ,  Juan MONTOJO ,  Alexandros MANOLAKOS ,  Alexei Yurievitch GOROKHOV

IPC: H04W72/04 ,  H04W48/12 ,  H04L5/00 ,  H04W76/27 ,  H04W72/12

Abstract: A UE determines a default beam for a physical downlink shared channel (PDSCH) that is independent of a beam for a physical downlink control channel (PDCCH). The default PDSCH beam may be determined based on information received in a medium access control-control element (MAC-CE), or a radio resource control (RRC) message, a downlink control information (DCI). The default PDSCH beam may be determined based on at least one active transmission configuration indication (TCI) state for the PDSCH.

公开(公告)号：US20210028900A1

公开(公告)日：2021-01-28

申请号：US16947166

申请日：2020-07-21

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Parisa CHERAGHI ,  Peter GAAL ,  Alexei Yurievitch GOROKHOV

IPC: H04L5/00 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, for a first radio access technology, signaling identifying a set of physical resource blocks for a tracking reference signal transmission configured in a bandwidth part of a system bandwidth. The UE may determine that a collision condition is satisfied for a first one or more physical resource blocks of the set of physical resource blocks. The UE may receive the tracking reference signal transmission in a second one or more physical resource blocks of the set of physical resource blocks based at least in part on determining that the collision condition is satisfied for the first one or more physical resource blocks. Numerous other aspects are provided.

公开(公告)号：US20200092809A1

公开(公告)日：2020-03-19

申请号：US16684965

申请日：2019-11-15

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Yang YANG ,  Tingfang JI ,  Alexei Yurievitch GOROKHOV

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/04

Abstract: Tracking reference signal designs for deployments without continuous reference signal transmission are described. The tracking reference signals may be extended in the frequency domain from a synchronization signal block and may occupy a subset or all of the symbol periods of the synchronization signal block. The tracking reference signals may have the same subcarrier spacing as synchronization signals and may be punctured in the frequency domain. Alternatively, the tracking reference signals may include common control reference signals transmitted periodically with paired reference signals in a data channel. The common control reference signals and paired reference signals may be transmitted regardless of the presence of control or data. For improved tracking after a transition to a connected mode or a long discontinuous reception (DRX) cycle, a slot including tracking reference signals may be repeated or an additional tracking reference signal pattern may be transmitted.

公开(公告)号：US20200015247A1

公开(公告)日：2020-01-09

申请号：US16578139

申请日：2019-09-20

Applicant: QUALCOMM Incorporated

Inventor： Tingfang JI ,  John Edward SMEE ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Peter GAAL ,  Alexei Yurievitch GOROKHOV ,  Krishna Kiran MUKKAVILLI ,  Michael Alexander HOWARD ,  Rotem COOPER ,  Peter ANG

IPC: H04W72/12 ,  H04W72/04 ,  H04W56/00

Abstract: Aspects of the disclosure provide for a thin control channel structure that can be utilized to enable multiplexing of two or more data transmission formats. For example, a thin control channel may carry information that enables ongoing transmissions utilizing a first, relatively long transmission time interval (TTI) to be punctured, and during the punctured portion of the long TTI, a transmission utilizing a second, relatively short TTI may be inserted. This puncturing is enabled by virtue of a thin channel structure wherein a control channel can carry scheduling information, grants, etc., informing receiving devices of the puncturing that is occurring or will occur. Furthermore, the thin control channel can be utilized to carry other control information, not being limited to puncturing information. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20190058538A1

公开(公告)日：2019-02-21

申请号：US16007704

申请日：2018-06-13

Applicant: QUALCOMM Incorporated

Inventor： Haitong SUN ,  Hung LY ,  Tingfang JI ,  Peter GAAL ,  Alexei Yurievitch GOROKHOV ,  Tao LUO ,  Muhammad Nazmul ISLAM

IPC: H04J1/06 ,  H04W74/08 ,  H04B7/0413

Abstract: Aspects of the present disclosure relate to techniques for transmitting and processing synchronization signals (SS) for different purposes. In some cases, transmitting multiple SS blocks simultaneously using frequency division multiplexing (FDM), and possibly different beams, may allow a UE to reduce a measurement window.

公开(公告)号：US20180331788A1

公开(公告)日：2018-11-15

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 ,  H04L5/00

CPC classification number: H04L1/08 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/1893 ,  H04L5/0046 ,  H04L5/0055 ,  H04W92/10

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：US20180007575A1

公开(公告)日：2018-01-04

申请号：US15635547

申请日：2017-06-28

Applicant: QUALCOMM Incorporated

Inventor： Vaibhav SINGHAL ,  Heechoon LEE ,  Alexei Yurievitch GOROKHOV ,  Sarabjot Singh KHANGURA ,  Chengjin ZHANG ,  Amir FARAJIDANA ,  Amir AMINZADEH GOHARI ,  Wenshu ZHANG

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W24/08 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0085 ,  H04L27/26 ,  H04W24/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/15 ,  H04W76/19 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

Abstract: In wireless communication networks using carrier aggregation including a secondary component carrier in unlicensed spectrum, a user equipment (UE) may monitor a downlink radio link quality of secondary cells for an event indicating failure of a communication link in the unlicensed spectrum with a secondary cell. The UE detects one or more failure events based on the downlink radio link quality. When a designated set of failure events is detected, the UE declares a failure state on the secondary cell. In response to the failure state, the UE may adjust operations related to the secondary component carrier in the unlicensed spectrum in order to save power and resources.