公开(公告)号：US11595177B2

公开(公告)日：2023-02-28

申请号：US17084621

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Ming Ta Lin ,  Afshin Haftbaradaran ,  Shravan Kumar Reddy Garlapati ,  Cunzhen Liu ,  Alessandro Risso ,  Li Zhang

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A shared channel may include a set of tones carrying multiple types of control information multiplexed together. A wireless device may perform a tone classification method to determine individual subsets of tones from the set of tones for each type of control information to extract each type of control information. The wireless device may determine multiple subsets of tones correspond to multiple types of control information simultaneously based on different extraction parameters. For example, the wireless device may determine a total number of tones in a set of tones, a distance between any given two tones in the set of tones, an offset value, or any combination thereof for the extraction parameters. The wireless device may then use these extraction parameters to determine or extract two or more subsets of tones for two or more corresponding types of control information.

公开(公告)号：US11777650B2

公开(公告)日：2023-10-03

申请号：US16985883

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Ayan Sengupta ,  Alberto Rico Alvarino ,  Qiang Shen ,  Chu-Hsiang Huang ,  Cunzhen Liu ,  Yang Sun ,  Arash Mirbagheri ,  Gabi Sarkis ,  Peter Gaal

IPC: H04L1/00 ,  H04L1/06 ,  H03M13/27 ,  H03M13/15 ,  H04L27/26 ,  H04L5/00 ,  H03M13/29

CPC classification number: H04L1/0071 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0606 ,  H04L1/0643 ,  H03M13/15 ,  H03M13/27 ,  H03M13/271 ,  H03M13/2703 ,  H03M13/2778 ,  H03M13/2789 ,  H03M13/2906 ,  H04L1/0059 ,  H04L1/065 ,  H04L5/0023 ,  H04L27/2607

Abstract: A base station maps code blocks of a transport block of a transport block size (TBS) for a channel using tone-level interleaving or resource element (RE)-level interleaving. Then, the base station can transmit the code blocks of the transport block of the TBS for the channel. A UE may receive the channel from the base station and de-interleave the received tones of the channel in a frequency domain to obtain the code blocks of the transport block having the TBS for the channel.

公开(公告)号：US10103843B1

公开(公告)日：2018-10-16

申请号：US15836309

申请日：2017-12-08

Applicant: QUALCOMM Incorporated

Inventor： Cunzhen Liu ,  Alessandro Risso ,  Li Zhang

IPC: H04L1/00 ,  H03M13/27

Abstract: In an aspect, a method of encoding data for transmission includes reading, for a block of encoded data on which interleaving and rate-matching is to be performed, the block of encoded data from a buffer, by first and second interleaving and rate matching engines operating in parallel and, starting at first and second starting points of the buffer, respectively. Encoded output data includes the interleaved and rate matched data from both engines. In another aspect, a method of decoding received data includes reading data of a log likelihood ratio (LLR) buffer, by first and second de-interleaving and de-rate matching engines, starting at first and second starting points of the LLR buffer, respectively. Decoded output data includes de-interleaved and de-rate matched data of both engines.

公开(公告)号：US11418294B2

公开(公告)日：2022-08-16

申请号：US17021361

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Cunzhen Liu ,  Alessandro Risso ,  Li Zhang

IPC: H04L1/18 ,  H04L1/00

Abstract: An apparatus (e.g., receive chain) for wireless communications may perform de-interleaving, de-rate matching, and hybrid automatic repeat request (HARQ) combining in a single step. The apparatus may include a data pool configured to store HARQ log likelihood ratio (LLR) data from previous transmissions. The apparatus may include a HARQ onload controller configured to load HARQ LLR data from the HARQ data pool into a HARQ buffer. The apparatus may include an LLR buffer configured to store received demodulated, interleaved, and rate matched LLR data. The apparatus may include a plurality of processing engines configured to, starting at different locations of the LLR buffer: receive new input data from the LLR buffer; combine the HARQ LLR data from the HARQ buffer with the new input data to generate de-interleaved, de-rate matched, and HARQ combined data; and write the de-interleaved, de-rate matched, and HARQ combined data into the HARQ buffer.

公开(公告)号：US20220140976A1

公开(公告)日：2022-05-05

申请号：US17084621

申请日：2020-10-29

Applicant: QUALCOMM Incorporated

Inventor： Ming Ta Lin ,  Afshin Haftbaradaran ,  Shravan Kumar Reddy Garlapati ,  Cunzhen Liu ,  Alessandro Risso ,  Li Zhang

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A shared channel may include a set of tones carrying multiple types of control information multiplexed together. A wireless device may perform a tone classification method to determine individual subsets of tones from the set of tones for each type of control information to extract each type of control information. The wireless device may determine multiple subsets of tones correspond to multiple types of control information simultaneously based on different extraction parameters. For example, the wireless device may determine a total number of tones in a set of tones, a distance between any given two tones in the set of tones, an offset value, or any combination thereof for the extraction parameters. The wireless device may then use these extraction parameters to determine or extract two or more subsets of tones for two or more corresponding types of control information.