公开(公告)号：US10742238B2

公开(公告)日：2020-08-11

申请号：US15967592

申请日：2018-04-30

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Gabi Sarkis ,  Yang Yang

IPC: H03M13/37 ,  H04L1/00 ,  H03M13/13 ,  H03M13/11 ,  H03M13/00 ,  H03M13/45 ,  H03M13/15 ,  H03M13/29

Abstract: Methods, systems, and devices for wireless communication are described. The examples described herein may enable a decoder to determine path metrics for various decoding paths based on identified frozen bit locations of a polar code. The path metric for a decoding path may be based on bit metrics determined for the identified frozen bit locations along the decoding path. Once the path metrics and bit metrics are determined, the decoder may compare these metrics to threshold criteria and determine whether to discard decoding paths based on the comparison. The techniques described herein for discarding decoding paths may allow the decoder to discard, prune, or disqualify certain decoding paths that are unlikely to provide an accurate representation of bits received from another device. Consequently, the decoder may be able to save power by terminating a decoding process early (i.e., early termination) if all paths are discarded, pruned, or disqualified.

公开(公告)号：US10721044B2

公开(公告)日：2020-07-21

申请号：US15070694

申请日：2016-03-15

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  John Edward Smee ,  Jamie Menjay Lin ,  Rotem Cooper ,  Michael Alexander Howard

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16

Abstract: Systems and methods are disclosed for minimizing latency between receipt of a NACK at a base station from a user equipment (UE) and retransmission of data to the UE. Time constraints for processing the ACK/NACK are relaxed so the base station can decode the ACK/NACK to determine whether a NACK has been received and then prepare for transmission of the appropriate data to the UE in the immediately following transmission time interval (TTI). These constraints are relaxed by separating download data indicator (DDI) from the PDCCH control data and delaying transmission of the DDI until decoding of the ACK/NACK.

公开(公告)号：US10601447B2

公开(公告)日：2020-03-24

申请号：US15976676

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Krishna Kiran Mukkavilli ,  Gabi Sarkis ,  Peter Pui Lok Ang

IPC: H03M13/13 ,  H04L5/00 ,  H04L1/00 ,  H03M13/35 ,  H04W72/10 ,  H03M13/09

Abstract: Methods, systems, and devices for wireless communication are described. In a new radio (NR) system, a wireless device may encode control information into a codeword using a polar code. The device may prioritize certain information within the codeword due to the time criticalness of that information for processing at a receiving device. For example, information related to frequency allocation may be encoded such that the receiving device may decode the frequency allocation information early in the decoding process. The device may include partial parity checks throughout the codeword, so that the receiving device may test whether the decoded bits for the prioritized information pass a parity check, and may then send these decoded bits for processing before completing decoding of the codeword. In some cases, the device may encode the information to be transmitted using multiple evenized codewords, or using a single consolidated codeword.

公开(公告)号：US10313057B2

公开(公告)日：2019-06-04

申请号：US15607161

申请日：2017-05-26

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Joseph Binamira Soriaga

IPC: H03M13/00 ,  H04L1/00 ,  H03M13/29 ,  H03M13/39 ,  H03M13/09

Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for increasing decoding performance and/or reducing decoding complexity. An exemplary method generally includes obtaining a payload to be transmitted, partitioning the payload into a plurality of payload sections, deriving redundancy check information for each respective payload section of the plurality of payload sections, merging the redundancy check information for each payload section with the plurality of payload sections to form a sequence of bits, and generating a codeword by encoding the sequence of bits using an encoder. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180270017A1

公开(公告)日：2018-09-20

申请号：US15920276

申请日：2018-03-13

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Gabi Sarkis

IPC: H04L1/00 ,  H03M13/37 ,  H03M13/13

Abstract: A wireless device may decode a polar coded codeword using a successive cancellation list (SCL) decoder. The decoder may implement a distributed feedback architecture, where the decoder stores one or more state maps and a set of bit arrays in memory for each layer of decoding. For different phases of decoding in a layer, the decoder may update the state maps and sets of bit arrays to limit the resources used. Additionally, when performing bit updating following the decoding of a bit of the codeword, the decoder may not update each layer of the decoding process. Instead, each sub-decoder may send a state map up to the calling layer for bit updating when the sub-decoder has completed its invocation, and may not return any intermediate state maps prior to completing invocation. Thus, each decoder and sub-decoder may perform bit updating just twice, reducing the complexity and latency of decoding.

公开(公告)号：US10075194B2

公开(公告)日：2018-09-11

申请号：US15358960

申请日：2016-11-22

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Yang Yang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Tingfang Ji

IPC: H03M13/41 ,  H04B7/0413 ,  H04L1/00

CPC classification number: H03M13/4115 ,  H03M13/413 ,  H03M13/4169 ,  H03M13/6502 ,  H04B7/0413 ,  H04L1/0054

Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for enhanced decoding, for example, by providing a multi-phase tail biting convolutional code (TBCC) decoding algorithm. An exemplary method generally includes obtaining, via a wireless medium, a codeword encoded with a TBCC encoding scheme, generating metrics for candidate paths through trellis stages of a decoder, propagating information from at least one of the trellis stages to a later trellis stage, while generating the metrics, selecting a set of the candidate paths based on the propagated information, and decoding the encoded codeword by evaluating the selected set of candidate paths based, at least in part, on the generated metrics. Other aspects, embodiments, and features are claimed and described.

公开(公告)号：US20170150486A1

公开(公告)日：2017-05-25

申请号：US15359541

申请日：2016-11-22

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tao Luo ,  Tingfang Ji ,  Jing Jiang ,  Jamie Menjay Lin ,  Yang Yang

IPC: H04W72/04 ,  H04B7/04 ,  H04J1/02

CPC classification number: H04W72/044 ,  H04B7/0452 ,  H04J1/02 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0094

Abstract: Transmission of user equipment (UE) specific control information within a resource allocation including resource blocks allocated for downlink transmissions to the UE is disclosed. Common control information may be provided in a first transmission time interval (TTI)-level control region, and UE-specific control information, specific to a particular UE, may be provided along with data in allocated downlink resources to the UE. A base station may identify a resource block (RB) for transmission of data to a UE along with UE-specific control information to be included in the RB. The control information may include, for example, parameters for use by the receiver in demodulating the RB. The base station may multiplex the control information with the data within the RB and transmit the RB and control information.

公开(公告)号：US20160323909A1

公开(公告)日：2016-11-03

申请号：US15085602

申请日：2016-03-30

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Jing Jiang ,  Naga Bhushan ,  Rotem Cooper

IPC: H04W72/12 ,  H04J3/16 ,  H04L1/16 ,  H04W72/14

CPC classification number: H04W72/1263 ,  H04J3/1694 ,  H04L1/16 ,  H04L47/14 ,  H04L47/24 ,  H04L47/522 ,  H04W72/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The method includes scheduling at a scheduling entity, a first frame for transmission over a wireless network that supports time division duplexing (TDD), where the first frame includes a first duplex symbol that includes a first bandwidth to be used for uplink transmission to the scheduling entity and a second bandwidth to be used for downlink transmission from the scheduling entity, and using the second bandwidth to transmit scheduling information while the first frame is being transmitted. The scheduling information may be related to a second frame that is scheduled to be transmitted immediately after the first frame. The scheduling information includes an uplink grant or a downlink grant.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该方法包括在调度实体处调度第一帧以用于支持时分双工（TDD）的无线网络上的传输，其中第一帧包括第一双工符号，该第一双工符号包括要用于上行链路传输到调度的第一带宽 实体和用于来自调度实体的下行链路传输的第二带宽，并且在发送第一帧时使用第二带宽来发送调度信息。 调度信息可以与被调度为在第一帧之后立即发送的第二帧有关。 调度信息包括上行链路许可或下行链路许可。

公开(公告)号：US20160270046A1

公开(公告)日：2016-09-15

申请号：US15048629

申请日：2016-02-19

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Tingfang Ji

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0055 ,  H04L5/0053

Abstract: The present disclosure provides a data-carried control signaling mode (DCM) for communication of control information and associated data and associated switching mechanism for switching between DCM and the known legacy control signaling mode (LCM). Associated methods, devices, and systems are disclosed. For example, in some implementations a method includes embedding control information into a data frame including associated data corresponding to the control information; jointly encoding the control information and the associated data; and jointly transmitting the control information and the associated data.

Abstract translation: 本公开提供了用于通信控制信息和相关联的数据的数据携带控制信令模式（DCM）以及用于在DCM和已知传统控制信令模式（LCM）之间切换的相关联的切换机制。 公开了相关方法，设备和系统。 例如，在一些实现中，一种方法包括将控制信息嵌入到包括与控制信息对应的相关联的数据的数据帧中; 联合编码控制信息和相关数据; 并共同发送控制信息和相关联的数据。

公开(公告)号：US12039742B2

公开(公告)日：2024-07-16

申请号：US17510763

申请日：2021-10-26

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Jisoo Jeong ,  Fatih Murat Porikli

IPC: G06K9/00 ,  G06N3/08 ,  G06T3/60 ,  G06T7/246

CPC classification number: G06T7/248 ,  G06N3/08 ,  G06T3/60 ,  G06T2207/10016 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: Systems and techniques are described for performing supervised learning (e.g., semi-supervised learning, self-supervised learning, and/or mixed supervision learning) for optical flow estimation. For example, a method can include obtaining an image associated with a sequence of images and generating an occluded image. The occluded image can include at least one of the image with an occlusion applied to the image and a different image of the sequence of images with the occlusion applied. The method can include determining a matching map based at least on matching areas of the image and the occluded image and, based on the matching map, determining a loss term associated with an optical flow loss prediction associated with the image and the occluded image. The loss term may include a matched loss and/or other loss. Based on the loss term, the method can include training a network configured to determine an optical flow between images.