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：US10686469B2

公开(公告)日：2020-06-16

申请号：US15953239

申请日：2018-04-13

Applicant: QUALCOMM Incorporated

Inventor： Huang Lou ,  Jing Jiang ,  Enoch Shiao-Kuang Lu ,  Gabi Sarkis ,  Yang Yang ,  Hari Sankar

IPC: H03M13/09 ,  H03M13/15 ,  H04L1/00 ,  H03M13/13 ,  H03M13/00

Abstract: Size ambiguity and false alarm rate reduction for polar codes. A user equipment (UE) may determine a decoding candidate bit sequence for a polar-encoded codeword having a codeword size based on a decoding hypothesis for control information having a particular bit length of multiple different bit lengths for the codeword size. The UE may calculate an error detection code (EDC) value for a payload portion of the decoding candidate bit sequence using an EDC algorithm, and may initialize an EDC variable state with at least one non-zero bit value. Scrambling or interleaving of bits may also be performed prior to, or after, polar encoding and may depend on the bit length. In examples, information bits may be bit-reversed prior to generating an EDC value. In examples, the encoded bits may include multiple EDC values to assist the UE in performing early termination and to reduce a false alarm rate.

公开(公告)号：US20200099469A1

公开(公告)日：2020-03-26

申请号：US16467463

申请日：2017-12-07

Applicant: Jing JIANG ,  Gabi SARKIS ,  Yang YANG ,  Shrinivas KUDEK ,  Josph Binamira SORIAGA ,  Hari SANKAR ,  Changlong XU ,  Chao WEI ,  Shrinivas KUDEKAR ,  Qualcomm Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Shrinivas Kudekar ,  Joseph Binamira Soriaga ,  Hari Sankar ,  Changgiong Xu ,  Chao Wei

IPC: H04L1/00

Abstract: Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.

公开(公告)号：US10476525B2

公开(公告)日：2019-11-12

申请号：US15704204

申请日：2017-09-14

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Hari Sankar ,  Vincent Loncke ,  Joseph Binamira Soriaga ,  Yang Yang

IPC: H03M13/00 ,  H03M13/15 ,  H03M13/19 ,  G06F17/15 ,  H03M13/11 ,  H03M13/13 ,  G06F17/16 ,  G06F16/901

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine indices associated with m consecutive elements. In an aspect, each of the m consecutive elements may be associated with a different index. In addition, the apparatus may bit reverse a binary sequence associated with each of the m consecutive elements. In an aspect, each of the m consecutive elements may include a different binary sequence. Further, the apparatus may determine a bit-reversed order of the indices based at least in part on the bit-reversed binary sequence associated with each of the m elements. In addition, the apparatus may write each of the m consecutive elements to a different memory bank in parallel based at least in part on the bit-reversed order of the indices.

公开(公告)号：US20180019766A1

公开(公告)日：2018-01-18

申请号：US15414548

申请日：2017-01-24

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jamie Menjay Lin ,  Hari Sankar ,  Joseph Binamira Soriaga

IPC: H03M13/39 ,  H03M13/13

CPC classification number: H03M13/13

Abstract: Aspects of the present disclosure relate to pipelining two or more decoding stages during successive-cancellation polar code list decoding of a polar coded information transmission. During each cycle, the path metrics of candidate decoding paths of each of the pipelined decoding stages are compared and one of the candidate decoding paths from each pipelined decoding stage is selected for the next respective decoding stage.

公开(公告)号：US20170359146A1

公开(公告)日：2017-12-14

申请号：US15592519

申请日：2017-05-11

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jamie Menjay Lin ,  Hari Sankar ,  Joseph Binamira Soriaga

IPC: H04L1/00

CPC classification number: H04L1/0054 ,  H03M13/4115 ,  H04L1/005

Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support enhanced efficiency in list Viterbi algorithm (LVA) decoding using iterative comparison trellis construction. Iterative comparison may involve comparison and selection from ordered accumulated path metrics associated with feeding transitions by selecting, for each successive rank of an ordered path metrics list for the current stage, the best unselected accumulated path metric of the feeding transitions. The iterative comparison may be performed sequentially for each stage before processing the next stage. Alternatively, the iterative comparison may be pipelined across stages, and different ranks of the ordered path metrics lists for different stages may be concurrently computed in a single trellis search cycle using multiple comparators. Iterative comparison may be used in an inner decoder to generate an ordered path metrics list for processing according to an error checking function using an outer decoder.

公开(公告)号：US20160134317A1

公开(公告)日：2016-05-12

申请号：US14673851

申请日：2015-03-30

Applicant: QUALCOMM Incorporated

Inventor： An-swol Clement HU ,  Reza Shahidi ,  Chintan Shirish Shah ,  Jun Hu ,  Stanley Suyi Tsai ,  Parth AshwinKumar Pandya ,  Shanshan Wang ,  Qingxin Chen ,  Hari Sankar ,  Qiang Shen ,  Thawatt Gopal ,  Divaydeep Sikri

IPC: H04B1/3816 ,  H04W68/02

CPC classification number: H04B1/3816 ,  H04W8/183 ,  H04W60/005 ,  H04W68/02

Abstract: Methods and devices for implementing dynamic receive mode management to improve data throughput and paging performance on a multi-subscriber identification module (SIM) wireless communication device may include detecting, on a protocol stack associated with a first SIM, an active communication in a first network, detecting, on a protocol stack associated with a second SIM, an idle mode paging cycle in a second network, prompting entry into a selected dual receive mode on the shared RF resource, and monitoring at least one performance metric for the idle mode paging cycle associated with the second SIM while in the dual receive mode. Based on the monitored performance metric while in the dual receive mode, the wireless communication device may determine whether paging performance is degraded for the second SIM, and if so, trigger entry into a fallback mode on the shared RF resource.

Abstract translation: 用于实现动态接收模式管理以改善多用户识别模块（SIM）无线通信设备上的数据吞吐量和寻呼性能的方法和设备可以包括在与第一SIM相关联的协议栈上检测第一网络中的活动通信 在与第二SIM卡相关联的协议栈上检测第二网络中的空闲模式寻呼周期，提示在所述共享RF资源上进入所选择的双重接收模式，以及监视所述空闲模式寻呼周期的至少一个性能度量 在双重接收模式下与第二SIM卡相关联。 基于双重接收模式下的监视性能度量，无线通信设备可以确定第二SIM卡的寻呼性能是否下降，如果是，则在共享RF资源上触发进入回退模式。

公开(公告)号：US12279307B2

公开(公告)日：2025-04-15

申请号：US17939516

申请日：2022-09-07

Applicant: QUALCOMM Incorporated

Inventor： Jae Ho Ryu ,  Jing Sun ,  Vinay Chande ,  Hari Sankar

IPC: H04W74/0808 ,  H04W8/24 ,  H04W16/14

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer-readable medium for transmitting a capability signal to a network entity, wherein the capability signal indicates whether the UE is capable of supporting an uplink (UL) bandwidth that is equal to or less than a downlink (DL) bandwidth for communication over an unlicensed band; and exchanging a signal between the UE and the network entity over the unlicensed band according to the capability signal. Some alternative or additional aspects include methods, apparatuses, and computer-readable medium for receiving a signal from a network entity, wherein the signal indicates that short control signal exemption (SCSt) is applied to a synchronization signal block (SSB) transmission of one or more network entities over an unlicensed band; and skipping SSB presence detection of the one or more network entities in response to the signal.

公开(公告)号：US12213128B2

公开(公告)日：2025-01-28

申请号：US17735631

申请日：2022-05-03

Applicant: QUALCOMM Incorporated

Inventor： Xiao Feng Wang ,  Peter Gaal ,  Alberto Rico Alvarino ,  Liangping Ma ,  Alexei Yurievitch Gorokhov ,  Hari Sankar

IPC: H04W4/00 ,  H04L1/1812 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a codebook type for transmitting hybrid automatic repeat request (HARQ) feedback by the UE to a second device (e.g., a network device, a satellite, or a base station). The indication of the codebook type may indicate a HARQ feedback transmission configuration, such as a static HARQ feedback transmission configuration. The HARQ transmission configuration may be associated with a one bit or two bit HARQ codebook. The UE may receive a scheduled downlink shared channel transmission, and attempt to decode the received downlink shared channel transmission. The UE may transmit (or refrain from transmitting) the HARQ feedback based on the decoding of the scheduled downlink shared channel transmission and in accordance with the feedback mode.

公开(公告)号：US12166581B2

公开(公告)日：2024-12-10

申请号：US17664630

申请日：2022-05-23

Applicant: QUALCOMM Incorporated

Inventor： Sanghoon Kim ,  Alexei Yurievitch Gorokhov ,  Hari Sankar

IPC: H04L1/00 ,  H04W72/0446 ,  H04W72/21

Abstract: Methods, apparatuses, and computer-readable storage medium for rate matching for TBoMS are provided. An example method includes calculating a slot length for each UL slot of a plurality of UL slots, the slot length for each UL slot being associated with a plurality of rate matching output bits, each UL slot including a starting point for the plurality of rate matching output bits, the slot length for each UL slot being associated with a starting boundary, the plurality of UL slots being associated with at least one of a single TB or a single rate matching. The example method may include allocating one or more bits of the plurality of rate matching output bits for a modulation process. The example method may include refraining allocating at least one bit of the plurality of rate matching output bits for the modulation process, the at least one bit corresponding to UCI multiplexing.