公开(公告)号：US20180375696A1

公开(公告)日：2018-12-27

申请号：US16014492

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Bilal SADIQ ,  Navid ABEDINI ,  Xiao Feng WANG ,  Haitong SUN ,  Juergen CEZANNE ,  Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Alberto RICO ALVARINO

IPC: H04L25/03 ,  H04L1/00

Abstract: Aspects of the present disclosure include systems and methods that transmit masked data by designating one or more selected bits in a bit stream containing data bits, selecting a mask for the bit stream based on the one or more selected bits, masking the bit stream without altering the one or more selected bits, encoding the masked bit stream into one or more codewords, and transmitting the one or more codewords.

公开(公告)号：US20180054340A1

公开(公告)日：2018-02-22

申请号：US15445263

申请日：2017-02-28

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Chun-Hao HSU ,  Xiao Feng WANG ,  Peter GAAL ,  Lei XIAO

IPC: H04L27/20 ,  H04W4/00

CPC classification number: H04L27/2082 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/0202 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2657 ,  H04W4/70

Abstract: In order to enable a UE receiving a narrowband signal transmitted using in-band resources to use the LTE reference signals to assist the UE in receiving the narrowband signal using an in-band deployment, a phase rotation employed by the base station may be fixed relative to a known reference position in time. An apparatus for wireless communication at a base station may determine a phase offset for a narrowband signal for transmission using wideband resources, the phase offset having a relationship to a reference point in time and transmit the narrowband signal using the determined phase offset. An apparatus for wireless communication at a UE may receive a narrowband signal having a frequency location within a wideband signal and rotate a symbol of the wideband signal by a per symbol phase offset having a relationship of the phase offset to a reference point in time.

公开(公告)号：US20170339658A1

公开(公告)日：2017-11-23

申请号：US15493247

申请日：2017-04-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wanshi CHEN ,  Xiao Feng WANG ,  Peter GAAL ,  Alberto RICO ALVARINO ,  Juan MONTOJO ,  Jing LEI ,  Seyed Ali Akbar FAKOORIAN

IPC: H04W64/00 ,  G01S5/02 ,  H04L5/00

CPC classification number: H04W64/00 ,  G01S5/021 ,  G01S5/0236 ,  H04L5/0048

Abstract: Certain aspects of the present disclosure generally relate to downlink (DL) based and uplink (UL) based positioning reference signal (PRS) techniques that may help facilitate positioning procedures in systems deploying narrowband devices, such as narrowband Internet of Things (NB-IoT) devices. An exemplary method that may be performed by a node includes monitoring for positioning reference signals (PRS) transmitted from one or more base stations within a narrowband region of a wider system bandwidth, wherein tones of the PRS are repeated across at least one of multiple symbols within a same subframe, or multiple consecutive subframes, and estimating timing from the one or more base stations based on the PRS.

公开(公告)号：US20170332404A1

公开(公告)日：2017-11-16

申请号：US15591082

申请日：2017-05-09

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Xiao Feng WANG ,  Hao XU

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12 ,  H04W4/00

CPC classification number: H04W74/085 ,  H04W4/70 ,  H04W72/0453 ,  H04W72/1289 ,  H04W74/06

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and more specifically to transmission resource management for ordered physical random access channel (PRACH) signals. An example method performed by a base station generally includes providing an indication of a set of transmission resources, within a narrowband region of a wider system bandwidth, for transmitting scheduled physical random access channel (PRACH) signals by a first user equipment (UE) and transmitting a command to the first UE to transmit a scheduled PRACH.

公开(公告)号：US20170264419A1

公开(公告)日：2017-09-14

申请号：US15341775

申请日：2016-11-02

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Hao XU ,  Juan MONTOJO ,  Wanshi CHEN ,  Renqiu WANG ,  Xiao Feng WANG

IPC: H04L5/14 ,  H04L1/18 ,  H04W4/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04L1/1621 ,  H04L1/1685 ,  H04L1/1822 ,  H04L1/1858 ,  H04L1/1861 ,  H04L5/0055 ,  H04W4/70 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453

Abstract: The apparatus improves HD-FDD data transmission rates, e.g., for eMTC by using a self subframe scheduling PDSCH that overlaps a M-PDCCH transmission in time. The apparatus may communicate using ACK(s)/NACK(s) for multiple HARQs that are bundled and/or multiplexed within a subframe in order to increase a number of HARQs.

公开(公告)号：US20170207894A1

公开(公告)日：2017-07-20

申请号：US15272246

申请日：2016-09-21

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Seyed Ali Akbar FAKOORIAN ,  Jing LEI

IPC: H04L5/00

CPC classification number: H04L5/0055 ,  H04J13/16 ,  H04J2013/165 ,  H04L1/1664 ,  H04L1/1685 ,  H04L1/1692

Abstract: The present disclosure provides various modifications to existing techniques for transmitting ACK and/or NACK in an narrow band communications system. For example, in a first aspect, an apparatus receives a downlink transmission and transmits a single tone ACK on an ACK channel using time-spreading. In another aspect, an apparatus determines whether an ACK has been received from a UE within a threshold amount of time, and when an ACK has not been received from the UE for at least the threshold amount of time, transmitting an indication to the UE to transmit regarding the ACK

公开(公告)号：US20250126584A1

公开(公告)日：2025-04-17

申请号：US19002636

申请日：2024-12-26

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Kianoush HOSSEINI ,  Xiao Feng WANG ,  Liangping MA ,  Ayan SENGUPTA ,  Jun MA ,  Huilin XU ,  Peter GAAL ,  Bharat SHRESTHA

IPC: H04W56/00 ,  H04L1/1812 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/23 ,  H04W74/0833 ,  H04W84/06

Abstract: A scheduling offset between an uplink and downlink radio frame timing structure of a user equipment (UE) may be updated to provide for more efficient utilization of hybrid automatic repeat request (HARQ) processes in a non-terrestrial network. For instance, different UEs may experience different round trip delays (RTDs) with a non-terrestrial cell. Different UEs may be configured with different scheduling offsets such that scheduling delays may be reduced and HARQ processes identifiers may be reused more rapidly. Additionally or alternatively, wireless communications systems may define one or more separation distances (or timing thresholds) for timing between communications and HARQ processes may be reused based on the separation distance threshold (e.g., such that a satellite may reuse a HARQ process ID for two scheduled communications that have not yet been performed by the UE).

公开(公告)号：US20250119915A1

公开(公告)日：2025-04-10

申请号：US18472701

申请日：2023-09-22

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA ,  Syed Hashim Ali SHAH ,  Peter GAAL ,  Gokul SRIDHARAN

IPC: H04W72/21 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may map uplink control information (UCI) bits and uplink shared channel (UL-SCH) data bits to a first subset of resources associated with a physical uplink shared channel (PUSCH). The UE may copy symbols associated with the UCI bits and the UL-SCH data bits from the first subset of resources to one or more remaining subsets of resources. The UE may apply an orthogonal cover code (OCC) across a plurality of subsets of resources, including the first subset of resources and the one or more remaining subsets of resources, associated with the PUSCH. The UE may transmit, based at least in part on the OCC applied across the plurality of subsets of resources, multiplexed UCI bits and UL-SCH data bits. Numerous other aspects are described.

公开(公告)号：US20250106842A1

公开(公告)日：2025-03-27

申请号：US18473114

申请日：2023-09-22

Applicant: QUALCOMM Incorporated

Inventor： Liangping MA ,  Xiao Feng WANG ,  Alberto RICO ALVARINO ,  Ayan SENGUPTA ,  Wanshi CHEN ,  Syed Hashim Ali SHAH

IPC: H04W72/1268 ,  H04L5/00 ,  H04W72/232

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may account for the application of orthogonal cover coding (OCC) to an uplink transmission when determining the transport block size (TBS) for the uplink transmission. OCC may be used to multiplex transmissions from multiple UEs and may involve spreading information. Described techniques may involve accounting for the spreading of information bits when determining the TBS for the uplink transmission to which OCC is applied. Sub-physical resource block (sub-PRB) frequency allocations may be provided for uplink transmissions. The UE may account for the allocated quantity of sub-carriers when determining the quantity of information bits. To indicate a sub-PRB, the UE may be configured to reinterpret one or more fields of an existing downlink control information (DCI) format as indicating the allocated sub-carriers, or a new DCI format may be configured that includes fields for indicating a sub-PRB allocation.

公开(公告)号：US20250081161A1

公开(公告)日：2025-03-06

申请号：US18459410

申请日：2023-08-31

Applicant: Qualcomm Incorporated

Inventor： Chiranjib SAHA ,  Umesh PHUYAL ,  Geetha Priya RAJENDRAN ,  Bharat SHRESTHA ,  Xiao Feng WANG

IPC: H04W68/02 ,  H04W76/30

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may establish a first user equipment (UE) identifier (ID) associated with pre-paging. The first network entity may transmit, with information associated with the first UE ID, a request associated with paging to a second network entity. Numerous other aspects are described.