公开(公告)号：US20240364395A1

公开(公告)日：2024-10-31

申请号：US18770890

申请日：2024-07-12

Applicant: QUALCOMM Incorporated

Inventor： Navin Dunichand ANWANI ,  Supratik BHATTACHARJEE ,  Pouriya SADEGHI ,  Sanaz BARGHI ,  Gautham HARIHARAN ,  Ashutosh Vinod AGRAWAL ,  Alexandre PIERROT ,  Ali KOOCHAKZADEH

IPC: H04B7/0456 ,  H04B7/0417

CPC classification number: H04B7/0486 ,  H04B7/0417

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a signal. The UE may measure the signal to explore one or more inactive ranks or inactive precoders. The UE may transmit, based at least in part on the measuring, a report that includes channel state information for at least one of the one or more inactive ranks or inactive precoders. Numerous other aspects are described.

公开(公告)号：US20220400422A1

公开(公告)日：2022-12-15

申请号：US17810716

申请日：2022-07-05

Applicant: QUALCOMM Incorporated

Inventor： Karthika PALADUGU ,  Gavin Bernard HORN ,  Prashanth Haridas HANDE ,  Keiichi KUBOTA ,  Prasad Reddy KADIRI ,  Alberto RICO ALVARINO ,  Masato KITAZOE ,  Umesh PHUYAL ,  Supratik BHATTACHARJEE

IPC: H04W36/18 ,  H04W36/08 ,  H04W76/27 ,  H04W12/04 ,  H04W36/00 ,  H04W12/033 ,  H04W12/106

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.

公开(公告)号：US20180323902A1

公开(公告)日：2018-11-08

申请号：US15970312

申请日：2018-05-03

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Jae Ho RYU ,  Peter GAAL ,  Supratik BHATTACHARJEE ,  Aamod Dinkar KHANDEKAR

IPC: H04L1/00 ,  H04W72/04 ,  H04L27/34

CPC classification number: H04L1/0004 ,  H04B7/0632 ,  H04L1/0025 ,  H04L1/0031 ,  H04L5/0048 ,  H04L27/34 ,  H04W72/042

Abstract: Aspects of the present disclosure generally relate to wireless communication. For example, aspects of the present disclosure provide techniques for determining one or more modulation orders to be used for the communication of control channels and/or data channels. An exemplary method, performed by a UE, may include receiving downlink control information (DCI) that allocates resources for a communication, the DCI may include a first field that indicates a transport block size (TBS) of the communication and a second field, different from the first field, that indicates a modulation order of the communication, wherein the communication includes a transmission or a reception, and processing the communication according to the indicated modulation order. Numerous other aspects are provided.

公开(公告)号：US20180302864A1

公开(公告)日：2018-10-18

申请号：US15926934

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Gaurav NIGAM ,  Sibasish DAS ,  Supratik BHATTACHARJEE ,  Ankit VERMA ,  Hongbo YAN ,  Navid EHSAN ,  Ashok MANTRAVADI ,  Surendra BOPPANA

IPC: H04W52/32 ,  H04W52/14

CPC classification number: H04W52/325 ,  H04W52/143 ,  H04W52/50 ,  H04W72/042 ,  H04W72/0446

Abstract: Aspects of the present disclosure provide techniques for the user equipment (UE) to select a power management mode from a plurality of power management modes supported by the UE based on decoding of a portion of the downlink subframe. For example, when the UE receives a subframe from a base station, the UE may decode a control channel region of the subframe to determine whether the subframe includes a channel grant allocated to the UE. If no channel grant is included in the subframe, the UE may select a power management mode for the UE from the plurality of power management modes supported by the UE that maximizes the UE's sleep opportunities while balancing the deficient performance costs.

公开(公告)号：US20170048919A1

公开(公告)日：2017-02-16

申请号：US15232672

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Srinivas YERRAMALLI ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Alexei Yurievitch GOROKHOV ,  Brian BANISTER ,  Michael Lee MCCLOUD ,  Tao LUO ,  Supratik BHATTACHARJEE ,  Chengjin ZHANG ,  Ravi Teja SUKHAVASI

IPC: H04W76/04 ,  H04W72/00 ,  H04W72/14 ,  H04W72/04 ,  H04B7/06

Abstract: Various aspects related to techniques for harmonization between common reference signal (CRS) and demodulation reference signal (DM-RS) based transmission modes (TMs) in unlicensed spectrum are described. In one aspect, a downlink/uplink (DL/UL) subframe configuration may be signaled for each subframe. Information provided by the DL/UL subframe configuration may indicate whether the respective downlink subframe is a single-frequency network (MBSFN) subframe (associated with DM-RS-based TM) or a non-MBSFN subframe (associated with CRS-based TM). In another aspect, periodic as well as aperiodic channel state information (CSI) reporting requests may be supported. In yet another aspect, discontinued reception (DRX) wake ups for unlicensed carriers may be explicitly or implicitly indicated to a user equipment (UE) via a carrier in a licensed spectrum.

Abstract translation: 描述与非许可频谱中的公共参考信号（CRS）和基于解调参考信号（DM-RS）的传输模式（TM）之间的协调技术相关的各个方面。 在一个方面，可以为每个子帧发信号通知下行链路/上行链路（DL / UL）子帧配置。 由DL / UL子帧配置提供的信息可以指示相应的下行链路子帧是单频网络（MBSFN）子帧（与基于DM-RS的TM相关联）还是非MBSFN子帧（与基于CRS的TM相关联） 。 在另一方面，可以支持周期性和非周期性信道状态信息（CSI）报告请求。 在另一方面，可以通过许可频谱中的运营商向用户设备（UE）明确地或隐含地指示用于未授权载体的中断接收（DRX）唤醒。

公开(公告)号：US20230055613A1

公开(公告)日：2023-02-23

申请号：US17759456

申请日：2020-12-29

Applicant: QUALCOMM Incorporated

Inventor： Saisruthi KOTAMRAJU ,  Achaleshwar SAHAI ,  Timothy Paul PALS ,  Supratik BHATTACHARJEE

IPC: H04L5/00 ,  H04B17/309

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify one or more symbols, associated with downlink communication of a first radio access technology (RAT), that are Impacted by antenna switching used to transmit an uplink reference signal of a second RAT. The UE may perform a mitigation action to mitigate downlink performance degradation associated with the first RAT based at least in part on identifying the one or more symbols. Numerous other aspects are described.

公开(公告)号：US20200037264A1

公开(公告)日：2020-01-30

申请号：US16513356

申请日：2019-07-16

Applicant: QUALCOMM Incorporated

Inventor： Steven Charles CICCARELLI ,  Vikas MAHAJAN ,  Tae Min KIM ,  Supratik BHATTACHARJEE ,  Chitaranjan PELUR SUKUMAR ,  Ashok MANTRAVADI ,  Pooyan AMINI ,  Alberto RICO ALVARINO ,  Carl HARDIN

IPC: H04W52/24 ,  H04W52/14 ,  H04W52/52 ,  H04W72/04 ,  H04L5/00 ,  H04L1/20 ,  H04L1/00

Abstract: Some techniques and apparatuses described herein protect components of a user equipment (UE), such as a low noise amplifier (LNA), from internal interference. For example, the LNA may be disconnected from a receive chain during periods of high internal interference, and may be reconnected to the receive chain during periods of low internal interference. Furthermore, some techniques and apparatuses described herein improve performance by adjusting operations of the UE to account for and/or offset increased internal interference due to a receive chain that does not include a surface acoustic wave (SAW) filter to remove unwanted radio frequency signals. For example, one or more operations of a baseband processor may be modified to account for the increased internal interference. Additionally, or alternatively, reporting of channel state information may be modified to account for increased internal interference of the UE. Additional details are described herein.

公开(公告)号：US20190068260A1

公开(公告)日：2019-02-28

申请号：US16110610

申请日：2018-08-23

Applicant: QUALCOMM Incorporated

Inventor： Hongbo YAN ,  Supratik BHATTACHARJEE ,  Gregory FOERSTER ,  Prashant Udupa SRIPATHI

IPC: H04B7/06 ,  H04L5/00

Abstract: Methods and apparatuses relate to sounding reference signal (SRS) transmit antenna selection in wireless communication systems. For example, a user equipment (UE) may select, from a set of antennas, a subset of antennas for SRS transmission based on at least one antenna selection parameter. The UE may further transmit, on an uplink communication channel, the SRS using the subset of antennas to a network entity. In some aspects, the at least one antenna selection parameter may include a reference signal receive power (RSRP) value, a signal-to-noise ratio (SNR) value, a spectrum efficiency value, and/or an SNR value and a channel correlation value.

公开(公告)号：US20190052328A1

公开(公告)日：2019-02-14

申请号：US16058879

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Prashanth AKULA ,  Alberto RICO ALVARINO ,  Aamod Dinkar KHANDEKAR ,  Helena Deirdre O'SHEA ,  Supratik BHATTACHARJEE

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to improving performance for sounding reference signal (SRS) antenna switching in carrier aggregation (CA). A method is provided, that may be performed by a user equipment (UE) for wireless communications. The method includes determining one or more band combinations that share an antenna switch and sending a list of one or more bands in the one or more band combinations to a base station (BS). The BS receives the list and schedules the UE based on the received list.

公开(公告)号：US20180254797A1

公开(公告)日：2018-09-06

申请号：US15884317

申请日：2018-01-30

Applicant: QUALCOMM Incorporated

Inventor： Pooyan AMINI ,  Amir FARAJIDANA ,  Sibasish DAS ,  Wenshu ZHANG ,  Supratik BHATTACHARJEE ,  Tao LUO

IPC: H04B1/7107 ,  H04W72/04 ,  H04W36/00 ,  H04L1/16

CPC classification number: H04B1/7107 ,  H04J11/004 ,  H04J11/005 ,  H04L1/1607 ,  H04L1/1812 ,  H04L5/005 ,  H04L5/0073 ,  H04W36/0066 ,  H04W72/042 ,  H04W72/0446

Abstract: An apparatus may receive a downlink subframe from a serving base station. The downlink subframe may include interference associated with a second subframe transmitted by an intra-frequency neighboring cell (IFNC). The apparatus may detect whether there are interfering cell-specific reference signals (CRS) in one or more symbols of the second subframe. The apparatus may determine, based on whether interfering CRS are detected in the one or more symbols of the second subframe, a subframe type of the second subframe. The apparatus may cancel detected interfering CRS from the received downlink subframe based on the determined subframe type of the second subframe.