公开(公告)号：US12101144B2

公开(公告)日：2024-09-24

申请号：US17648590

申请日：2022-01-21

Applicant: QUALCOMM Incorporated

Inventor： Navin Dunichand Anwani ,  Supratik Bhattacharjee ,  Pouriya Sadeghi ,  Sanaz Barghi ,  Gautham Hariharan ,  Ashutosh Vinod Agrawal ,  Alexandre Pierrot ,  Ali Koochakzadeh

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/0456

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：US11152953B2

公开(公告)日：2021-10-19

申请号：US16805636

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Afshin Haftbaradaran ,  Ming Ta Lin ,  Shravan Kumar Reddy Garlapati ,  Alessandro Risso ,  Alexandre Pierrot ,  Harsha Narasimha Acharya ,  Subramanya Rao ,  Li Zhang

IPC: H03M13/09 ,  G06F1/3287 ,  H03M13/27 ,  H03M13/13

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device may transmit a signal to a second device including a number of error detection bits interleaved with a number of information bits. The second device may use the error detection bits to determine if the signal was received correctly, where each error detection bit may be associated with a set of information bits. The second device may progressively decode the signal and continuously perform an error detection calculation based on a first set of information bits associated with a first error detection bit. Based on the error detection calculation, the second device may calculate an expected error detection bit corresponding to the first error detection bit. The second device may compare the first error detection bit to the expected error detection bit. Other aspects and features are also claimed and described.

公开(公告)号：US20240113917A1

公开(公告)日：2024-04-04

申请号：US17952203

申请日：2022-09-23

Applicant: QUALCOMM Incorporated

Inventor： Kumar Pratik ,  Arash Behboodi ,  Pouriya Sadeghi ,  Tharun Adithya Srikrishnan ,  Alexandre Pierrot ,  Joseph Binamira Soriaga ,  Supratik Bhattacharjee

IPC: H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0224 ,  H04L5/0051

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive an assignment of a set of resources associated with a channel where the set of resources includes a first subset of resources allocated for data transmission and a second subset of resources allocated for a reference signal. The wireless device may generate multiple channel estimations per layer of the channel and perform a refinement operation utilizing the estimations to generate a channel estimation associated with multiple layers. Each iteration of the refinement operation may include generating respective gradients associated with each per layer channel estimation; generating a current set of values of a latent variable; and modifying the channel estimations.

公开(公告)号：US20210273651A1

公开(公告)日：2021-09-02

申请号：US16805636

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Afshin Haftbaradaran ,  Ming Ta Lin ,  Shravan Kumar Reddy Garlapati ,  Alessandro Risso ,  Alexandre Pierrot ,  Harsha Narasimha Acharya ,  Subramanya Rao ,  Li Zhang

IPC: H03M13/09 ,  H03M13/13 ,  H03M13/27 ,  G06F1/3287

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a first device may transmit a signal to a second device including a number of error detection bits interleaved with a number of information bits. The second device may use the error detection bits to determine if the signal was received correctly, where each error detection bit may be associated with a set of information bits. The second device may progressively decode the signal and continuously perform an error detection calculation based on a first set of information bits associated with a first error detection bit. Based on the error detection calculation, the second device may calculate an expected error detection bit corresponding to the first error detection bit. The second device may compare the first error detection bit to the expected error detection bit. Other aspects and features are also claimed and described.

公开(公告)号：US10887053B1

公开(公告)日：2021-01-05

申请号：US16522350

申请日：2019-07-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandre Pierrot ,  Hari Sankar ,  Shravan Kumar Reddy Garlapati ,  Afshin Haftbaradaran ,  Alessandro Risso ,  Jae Ho Ryu ,  Ashok Mantravadi

IPC: H04B7/00 ,  H04L1/00 ,  H04B17/336

Abstract: Aspects described herein relate to decoding downlink control information (DCI) based on multiple DCI sizes. A first hypothesis of multiple hypotheses for decoding a communication received in a control channel search space, wherein the multiple hypotheses are based on different corresponding DCI sizes can be determined. The communication received in the control channel search space can be decoded based on the first hypothesis. For each of the multiple hypotheses and based on the different corresponding DCI sizes, information bits can be extracted from the communication as decoded. For each extracting of the information bits, cyclic redundancy check (CRC) can be performed based on one of the different corresponding DCI sizes to determine whether extracting of the information bits yields DCI.

公开(公告)号：US20160072531A1

公开(公告)日：2016-03-10

申请号：US14849568

申请日：2015-09-09

Applicant: QUALCOMM Incorporated

Inventor： Farrokh ABRISHAMKAR ,  Alexandre Pierrot ,  Sheng-Yuan Tu

IPC: H04B1/10

CPC classification number: G06N3/04 ,  G05B13/027 ,  G06N3/08 ,  H04B1/1036 ,  H04B1/1081 ,  H04B1/123 ,  H04B1/406 ,  H04B1/525 ,  H04B1/7107 ,  H04L25/03159 ,  H04W88/06

Abstract: The various embodiments include methods and apparatuses for canceling nonlinear interference during concurrent communication of multi-technology wireless communication devices. Nonlinear interference may be estimated using a support vector regression interference filter by generating one or more aggressor kernels, augmenting the one or more kernels by weight factors, and executing a regression function of the augmented components, to produce an estimated jammer signals. At an output layer, estimated jammer signals may be linearly combined to produce an estimated nonlinear interference used to cancel the nonlinear interference of a victim signal.

Abstract translation: 各种实施例包括用于在多技术无线通信设备的并发通信期间消除非线性干扰的方法和装置。 可以使用支持向量回归干扰滤波器通过生成一个或多个攻击者内核，通过加权因子来增加一个或多个内核并执行增强的分量的回归函数来估计非线性干扰，以产生估计的干扰信号。 在输出层，估计的干扰信号可以被线性组合以产生用于消除受害信号的非线性干扰的估计的非线性干扰。

公开(公告)号：US10700829B2

公开(公告)日：2020-06-30

申请号：US16268186

申请日：2019-02-05

Applicant: QUALCOMM Incorporated

Inventor： Shravan Kumar Reddy Garlapati ,  Afshin Haftbaradaran ,  Alessandro Risso ,  Alexandre Pierrot ,  Chinmay Vaze ,  Hari Sankar ,  Li Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H03M13/13 ,  H03M13/29 ,  H04L1/18 ,  H03M13/09 ,  H04J11/00 ,  H04L25/03

Abstract: Certain aspects of the present disclosure generally relate to techniques for combining a plurality of decision metrics of a scrambled payload in a 5G wireless communications system. For example, in some cases, combining decision metrics of a scrambled payload may generally involve receiving a first payload at a receiver that was scrambled both before and after encoding, generating a second payload at the receiver with selectively set payload mask bits, and using the selectively-set payload mask bits in the second payload to descramble the first payload.

公开(公告)号：US10470143B2

公开(公告)日：2019-11-05

申请号：US15919622

申请日：2018-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Michael Corley ,  Arvind Vardarajan Santhanam ,  Scott Hoover ,  Aamod Khandekar ,  Subramanya Rao ,  Prabhu Kandasamy ,  Alexandre Pierrot

IPC: H04W56/00 ,  H04W4/46 ,  H04B1/7073 ,  H04W72/04 ,  H04B1/7083 ,  G08G1/16 ,  H04W4/44 ,  H04W72/08

Abstract: A method for communication includes obtaining a timing signal from a timing synchronization reference source, computing a system frame number (SFN)—direct frame number (DFN) offset, creating a timing fingerprint using the timing signal and the SFN-DFN offset, the timing fingerprint also comprising additional timing information, entering the timing fingerprint into a database, continually updating the timing fingerprint, determining whether the timing signal remains within a threshold, if the timing signal exceeds the threshold, iterating the timing fingerprint, verifying the timing fingerprint to determine whether there is a timing inconsistency between a most recent timing fingerprint and current time, if the timing fingerprint is verified, using the SFN-DFN offset to derive current DFN timing to decode a sidelink control information (SCI) communication, and if the SCI communication is decoded, using the timing signal for communicating over a sidelink communication channel.

公开(公告)号：US20190261326A1

公开(公告)日：2019-08-22

申请号：US16275228

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Huilin Xu ,  Heechoon Lee ,  Jing Sun ,  Alexandre Pierrot

IPC: H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may identify a hash value index associated with searching for a physical downlink control channel. The hash value index may be identified based at least in part on an index of an interval of a plurality of intervals within a periodicity. The user equipment may configure, based at least in part on the hash value index, a hash function associated with determining the hash value. Numerous other aspects are provided.