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：US11825482B2

公开(公告)日：2023-11-21

申请号：US15663154

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Peter Pui Lok Ang ,  Wanshi Chen ,  Heechoon Lee ,  Jing Jiang ,  Tingfang Ji ,  Tao Luo

IPC: H04W72/23 ,  H04W76/27 ,  H04W88/08 ,  H04L5/00 ,  H04L25/02 ,  H04W72/0446 ,  H04W88/02

CPC classification number: H04W72/23 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/024 ,  H04W72/0446 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. A method may include receiving a control transmission from a base station, identifying a control channel search space organized according to a nested structure, the control channel search space including a plurality of control channel candidates associated with one or more control channel elements (CCEs) and an aggregation level, and searching the received control transmission to identify a control channel for the UE using the plurality of control channel candidates. Another method may include determining whether to reorder resource element group (REG) indices for a received control channel transmission based, at least in part, on a transmission mode associated with the control channel transmission. Another method may include decoding a received control channel transmission, where the downlink control information (DCI) formats may be constrained to an integer multiple of a predetermined base number of bits N.

公开(公告)号：US11798197B2

公开(公告)日：2023-10-24

申请号：US17200694

申请日：2021-03-12

Applicant: QUALCOMM Incorporated

Inventor： Hoang Cong Minh Le ,  Reza Pourreza ,  Yang Yang ,  Yinhao Zhu ,  Amir Said ,  Yizhe Zhang ,  Taco Sebastiaan Cohen

IPC: G06T9/00 ,  G06N3/08 ,  G06T3/40

CPC classification number: G06T9/002 ,  G06N3/08 ,  G06T3/4046

Abstract: A method of image compression includes receiving an image. Multiple quantized latent representations are generated to represent features of the image. Each of the quantized latent representations has a different resolution and is generated at staggered timings. Each of the later generated quantized latent representations is conditioned on each of the prior generated quantized latent representations. The multiple quantized latent representations are decoded to reconstruct the image.

公开(公告)号：US11737059B2

公开(公告)日：2023-08-22

申请号：US16255779

申请日：2019-01-23

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Sun ,  Wanshi Chen ,  Heechoon Lee ,  Peter Gaal ,  Alexandros Manolakos ,  Yang Yang

IPC: H04W4/00 ,  H04W72/0446 ,  H04L1/1812 ,  H04L5/00 ,  H04L1/08 ,  H04L1/1867 ,  H04W72/23

CPC classification number: H04W72/0446 ,  H04L1/08 ,  H04L1/1812 ,  H04L1/1896 ,  H04L5/0051 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide techniques for slot aggregation in new radio (NR) systems. A method of wireless communication by a user equipment (UE) includes receiving radio resource control (RRC) signaling providing a semi-static configuration for transmission and/or reception of a repeated transport block (TB) and/or a different TB in each of a plurality of aggregated slots. The UE transmits or receives the TBs in the plurality of aggregated slots based on the semi-static configuration. Another method is provided in which the UE transmits and/or receives a demodulation reference signal (DMRS) in each of a plurality of aggregated slots, each DMRS associated with a repeated TB or a different TB in the slot. The UE determines, based on received signaling, whether the DMRS use a same precoder or a different precoder and modulates and/or demodulates the TBs in the plurality of aggregated slots based on the determination.

公开(公告)号：US11638025B2

公开(公告)日：2023-04-25

申请号：US17207244

申请日：2021-03-19

Applicant: QUALCOMM Incorporated

Inventor： Reza Pourreza ,  Amir Said ,  Yang Yang ,  Yinhao Zhu ,  Taco Sebastiaan Cohen

IPC: H04N19/51 ,  H04N19/172 ,  H04N19/137 ,  H04N19/107 ,  H04N19/593 ,  G06N3/08

Abstract: Systems and techniques are described for encoding and/or decoding data based on motion estimation that applies variable-scale warping. An encoding device can receive an input frame and a reference frame that depict a scene at different times. The encoding device can generate an optical flow identifying movements in the scene between the two frames. The encoding device can generate a weight map identifying how finely or coarsely the reference frame can be warped for input frame prediction. The encoding device can generate encoded video data based on the optical flow and the weight map. A decoding device can generate a reconstructed optical flow and a reconstructed weight map from the encoded data. A decoding device can generate a prediction frame by warping the reference frame based on the reconstructed optical flow and the reconstructed weight map. The decoding device can generate a reconstructed input frame based on the prediction frame.

公开(公告)号：US11570698B2

公开(公告)日：2023-01-31

申请号：US17161162

申请日：2021-01-28

Applicant: QUALCOMM Incorporated

Inventor： Hung Ly ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Jing Jiang ,  Yang Yang ,  June Namgoong

IPC: H04W48/16 ,  H04W48/00 ,  H04W48/14 ,  H04L5/00 ,  H04J11/00 ,  H04W8/00 ,  H04W48/08 ,  H04W48/10

Abstract: Aspects of the present disclosure describe receiving, from at least one cell of a zone of multiple cells, a zone-specific signal related to the zone of multiple cells, wherein the zone of multiple cells operate using synchronized timing, acquiring, based on the zone-specific signal, a timing synchronization with a cell of the zone of multiple cells, and communicating with the cell based on the timing synchronization.

公开(公告)号：US11489625B2

公开(公告)日：2022-11-01

申请号：US16604060

申请日：2018-04-06

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Chao Wei ,  Jing Jiang ,  Jilei Hou ,  Yang Yang ,  Gabi Sarkis

IPC: H04L1/00 ,  H04L1/08

Abstract: Aspects of the disclosure relate to rate-matching a stream of bits encoded using polar codes. An exemplary method generally includes determining a mother code size (N) for transmitting an encoded stream of bits based, at least in part, on a minimum supported code rate for transmitting the encoded stream of bits (Rmin), a control information size of the encoded stream of bits (K), a number of coded bits for transmission (E), and a maximum mother code size (Nmax), encoding a stream of bits using a polar code of size (N, K) and storing the encoded stream of bits in a circular buffer, and performing rate-matching on the stored encoded stream of bits based, at least in part, on a comparison among the mother code size (N), the control information size of the encoded stream of bits (K), and the number of coded bits for transmission (E).

公开(公告)号：US20220190958A1

公开(公告)日：2022-06-16

申请号：US17645243

申请日：2021-12-20

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Shrinivas Kudekar ,  Joseph Binamira Soriaga ,  Hari Sankar ,  Changlong 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：US11349606B2

公开(公告)日：2022-05-31

申请号：US16885774

申请日：2020-05-28

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Yang Yang

IPC: G06F11/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04

Abstract: Aspects of the present disclosure relate to techniques for retransmission of code block groups when code block group (CBG) level feedback is unreliable. A user equipment (UE), in a first slot, transmits a first CBG feedback corresponding to a first set of CBGs received from a base station. In a second slot after the first slot, the UE receives downlink control information (DCI) and a first cyclic redundancy check (CRC). The first CRC is generated based on the DCI and further scrambled by a first concatenation of CBG feedbacks as decoded by the base station. The UE generates a second CRC based on the DCI and further scrambled by a second concatenation of CBG feedbacks including the first CBG feedback. The UE determines that the base station correctly decoded the first CBG feedback based on a comparison of the first CRC and the second CRC.