公开(公告)号：US10980051B2

公开(公告)日：2021-04-13

申请号：US16250377

申请日：2019-01-17

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Jing Jiang

IPC: H04W72/12 ,  H04L1/18 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate generally to wireless communications systems, and more particularly, to soft combining of control information. For example, certain aspects provide a method for wireless communication. The method generally includes monitoring for control information in each of a plurality of physical downlink control channel (PDCCHs) during a different one of a plurality of time intervals, wherein the PDCCHs contain the same control information that indicates a resource allocation within a respective one of the time intervals for receiving one of a plurality of physical downlink shared channels (PDSCHs), wherein data in each of the plurality of PDSCHs is the same. In certain aspects, the method also includes soft-combining the plurality of PDCCHs to decode the control information, and decoding the control information based on the soft-combination of the plurality of PDCCHs.

公开(公告)号：US10972219B2

公开(公告)日：2021-04-06

申请号：US16576338

申请日：2019-09-19

Applicant: QUALCOMM Incorporated

Inventor： Ying Wang ,  Jing Jiang ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Jing Lei ,  Seyong Park

IPC: H04L27/36 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for low density parity check (LDPC) interleaving with improved error floor performance. A method for wireless communications that may be provided by a transmitting device is provided. The method generally includes encoding one or more information bits using a LDPC code to produce a coded bit sequence comprising systematic bits and parity bits. The transmitting device stores the coded bit sequence in a circular buffer. The transmitting device performs rate matching on the coded bit sequence. The rate matching includes interleaving the parity bits with a partial interleaver and interleaving the systematic bits and interleaved parity bits with a systematic bit priority mapping (SBPM) interleaver. The transmitting device maps the SBPM interleaved bit sequence to constellation points according to a modulation scheme and transmits the modulated bit sequence.

公开(公告)号：US10959233B2

公开(公告)日：2021-03-23

申请号：US15808637

申请日：2017-11-09

Applicant: QUALCOMM Incorporated

Inventor： Hari Sankar ,  Alexei Yurievitch Gorokhov ,  Paolo Minero ,  Hobin Kim ,  Raghu Challa ,  Jing Jiang ,  Joseph Binamira Soriaga

IPC: H04W72/04 ,  H04L1/00 ,  H04W24/02 ,  H04W24/08 ,  H04W72/08

Abstract: Systems, methods and apparatus select a code book based on channel conditions and performance of a demodulator or demapper in a wireless receiver. The method may include determining that the receiver in a first wireless communication apparatus is configured for iteratively processing signals received from a channel, selecting a code book for use in communicating over the channel based on conditions affecting transmission of the signals through the channel and performance information associated with a demapper in the receiver, and identifying the selected code book in one or more control channels transmitted to a second wireless communication apparatus.

公开(公告)号：US20210076363A1

公开(公告)日：2021-03-11

申请号：US17102170

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Jing Jiang ,  Yang Yang ,  Peter Gaal ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Heechoon Lee

IPC: H04W72/04 ,  H04W28/04

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a communication that includes downlink control information (DCI), wherein a size of the DCI affects a cyclic redundancy check (CRC) value associated with the communication; and determine the DCI or the size of the DCI based at least in part on the CRC value. Numerous other aspects are provided.

公开(公告)号：US10938496B2

公开(公告)日：2021-03-02

申请号：US16453821

申请日：2019-06-26

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Yang Yang ,  June Namgoong ,  Jing Jiang

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04J13/00 ,  H04B7/06 ,  H04W56/00

Abstract: Wireless communication devices are adapted to facilitate multiplexing of signals. According to one example, a wireless communication device can multiplex a first signal and a second signal for transmission across a first resource element and a second resource element. The first resource element may utilize a first subcarrier in a first symbol employing a first numerology. The second resource element may utilize a second subcarrier in a second symbol employing a second numerology that is different from the first numerology, where the second subcarrier overlaps in frequency at least a portion of the first subcarrier. The first and second symbols including the multiplexed first and second signals may subsequently be transmitted. Other aspects, embodiments, and features are also included.

公开(公告)号：US10931420B2

公开(公告)日：2021-02-23

申请号：US16526478

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Huilin Xu ,  Naga Bhushan ,  Raghuraman Krishnamoorthi ,  Peter Pui Lok Ang ,  John Edward Smee

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04L25/02 ,  H04L12/801

Abstract: Systems and techniques are disclosed to reduce pilot overhead by providing common reference signals coded with cover codes that are orthogonal in time and frequency domains. Common reference signals that are coded by cover codes orthogonal in both domains can be de-spread in both the time and frequency domains for improved resolution and larger pull-in windows for both. Also disclosed is semi-uniform pilot spacing in both the frequency and time domains. In a time domain, a first pilot symbol pair is spaced by a first time interval from each other and a second pilot symbol pair is spaced by a second time interval from the first pair, the second interval being greater than the first. In a frequency domain, a first set of pilot symbols is densely placed in a selected frequency band and a second set of pilot symbols is sparsely placed surrounding and including the selected frequency band.

公开(公告)号：US10904871B2

公开(公告)日：2021-01-26

申请号：US16201844

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Yang Yang ,  Jing Jiang ,  Jing Sun ,  Tao Luo ,  Peter Gaal ,  Gabi Sarkis ,  Joseph Binamira Soriaga ,  Heechoon Lee ,  Wanshi Chen

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for aggregation level specific PDCCH modification.

公开(公告)号：US10833836B2

公开(公告)日：2020-11-10

申请号：US16220405

申请日：2018-12-14

Applicant: QUALCOMM Incorporated

Inventor： Chih-Ping Li ,  Jing Jiang ,  Linhai He ,  Peter PuiLok Ang ,  Peter Gaal

IPC: H04L5/00 ,  H04W76/27 ,  H04W76/38 ,  H04W76/34 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a bandwidth part configuration for a plurality of bandwidth parts, wherein a first bandwidth part of the plurality of bandwidth parts is identified as being activated and is associated with first resources allocated for uplink grant-free transmissions by the UE on the first bandwidth part. The UE may receive determine to deactivate the first bandwidth part and activate a second bandwidth part, and may determine to reactivate the first bandwidth part. The UE may identify second resources for uplink grant-free transmissions by the UE on the first bandwidth part based at least in part on the bandwidth part configuration. Numerous other aspects are provided.

公开(公告)号：US10813069B2

公开(公告)日：2020-10-20

申请号：US16024417

申请日：2018-06-29

Applicant: QUALCOMM Incorporated

Inventor： Chih-Ping Li ,  Jing Jiang ,  Wanshi Chen ,  Tingfang Ji ,  Peter Gaal

IPC: H04W56/00 ,  H04W76/27 ,  H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a timing advance (TA) command that includes a timing value for calculating a timing offset to be applied to adjust a timing of an uplink transmission; determine a numerology to be used to calculate the timing offset from the timing value; and calculate the timing offset using the timing value and the numerology, wherein the timing value corresponds to different timing offsets for different numerologies. Numerous other aspects are provided.

公开(公告)号：US10764833B2

公开(公告)日：2020-09-01

申请号：US16384833

申请日：2019-04-15

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Xiao Feng Wang ,  Chih-Ping Li ,  Jing Jiang

IPC: H04W76/27 ,  H04W52/14 ,  H04W72/12 ,  H04W72/04

Abstract: Some wireless communications systems may support mobile broadband (MBB) communications and low latency communications. To facilitate low latency communications, a base station may assign resources allocated for an MBB transmission for a low latency transmission. As described herein, to limit interference between an MBB transmission and a low latency transmission while maximizing the chances that the MBB transmission is received, an MBB user equipment (UE) may be configured to adjust a transmit power for the MBB transmission to limit the impact on a low latency transmission without preempting the MBB transmission. However, if the MBB UE is unable to adjust the transmit power for the MBB transmission prior to the MBB transmission, the MBB UE may determine whether to drop a portion of the MBB transmission on the resources assigned for the low latency transmission (e.g., based on whether a received power of the MBB transmission exceeds a threshold).