公开(公告)号：US10939431B2

公开(公告)日：2021-03-02

申请号：US16285931

申请日：2019-02-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiaoxia Zhang ,  Jing Sun ,  Ananta Narayanan Thyagarajan

IPC: H04W72/04 ,  H04W74/00 ,  H04W16/14 ,  H04W74/08

Abstract: Wireless communications systems and methods related to scheduling and communicating in an uplink direction over a medium shared by multiple network operating entities are provided. A first wireless communication device transmits, to a second wireless communication device, a message indicating an uplink allocation in a transmission slot, the uplink allocation including an allocation size based on an allowable listen-before-talk (LBT) delay in the transmission slot. The first wireless communication device receives, from the second wireless communication device, an uplink communication signal in the transmission slot, the uplink communication signal including an uplink data portion based on the allocation size and a filler portion associated with an LBT delay in the transmission slot.

公开(公告)号：US20210051631A1

公开(公告)日：2021-02-18

申请号：US16987064

申请日：2020-08-06

Applicant: QUALCOMM INCORPORATED

Inventor： Pravjyot Singh Deogun ,  Kapil Bhattad ,  Jing Sun ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Ahmed Zaki ,  Gowrisankar Somichetty

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14

Abstract: Wireless communications systems and methods related to bandwidth part (BWP) switching after data communication are provided. A user equipment (UE) receives, from a base station (BS) in a first bandwidth part (BWP), one or more data bursts and BWP switching information. The UE switches from the first BWP to a second BWP based on the BWP switching information after receiving the one or more data bursts. The UE communicates, with the BS, a communication in the second BWP after the switching.

公开(公告)号：US10897764B2

公开(公告)日：2021-01-19

申请号：US16269992

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Ananta Narayanan Thyagarajan ,  Xiaoxia Zhang ,  Jing Sun ,  Tamer Kadous

IPC: H04W72/04 ,  H04W52/36 ,  H04W16/14

Abstract: Wireless communications systems and methods related to scheduling and communicating in a frequency spectrum using interlaced frequency resources are provided. A first wireless communication device communicates, with a second wireless communication device, a first interlace configuration indicating a first set of interlaced frequency resources in a frequency band based on a power spectral density (PSD) parameter. The first wireless communication device communicates, with the second wireless communication device, a first frequency resource exclusion configuration. The first wireless communication device communicates, with the second wireless communication device, a first allocation including at least some frequency resources from the first set of interlaced frequency resources based on the first frequency resource exclusion configuration. The first wireless communication device communicates, with the second wireless communication device, a first communication signal based on the first allocation.

公开(公告)号：US20210006356A1

公开(公告)日：2021-01-07

申请号：US16894542

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04L1/16 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.

公开(公告)号：US10819495B2

公开(公告)日：2020-10-27

申请号：US16523878

申请日：2019-07-26

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Xiao Feng Wang ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04L5/14 ,  H04L5/22 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/08 ,  H04L25/02 ,  H04L1/00 ,  H04W74/08 ,  H04L5/26

Abstract: There is a need to support TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may transmit information associated with a TDD frame structure for narrowband communications. The apparatus may receive a first symbol group of a first narrowband physical random access channel (NPRACH) preamble from a UE. In one aspect, a first length of the first symbol group may be associated with the TDD frame structure.

公开(公告)号：US10674509B2

公开(公告)日：2020-06-02

申请号：US15718314

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Gowrisankar Somichetty ,  Shashidhar Vummintala ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00 ,  H04W88/08

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may allocate one or more narrowbands for at least one downlink transmission to a UE. The apparatus may transmit information associated with the one or more narrowbands and a RIV to the UE. In one aspect, the RIV may indicate a common starting RB and a common set of RBs allocated for the at least one downlink transmission in each of the one or more narrowbands.

公开(公告)号：US20200169367A1

公开(公告)日：2020-05-28

申请号：US16773546

申请日：2020-01-27

Applicant: QUALCOMM INCORPORATED

Inventor： Arul Durai Murugan Palanivelu ,  Kapil Bhattad ,  Manikandan Chandrasekar ,  Alberto Rico Alvarino

IPC: H04L5/00 ,  H04W4/70 ,  H04W64/00 ,  H04W56/00 ,  H04W72/04

Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.

公开(公告)号：US10547421B2

公开(公告)日：2020-01-28

申请号：US15718447

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Arul Durai Murugan Palanivelu ,  Kapil Bhattad ,  Manikandan Chandrasekar ,  Alberto Rico Alvarino

IPC: H04L5/00 ,  H04W72/04 ,  H04W56/00 ,  H04W4/70 ,  H04W64/00 ,  H04L29/08

Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.

公开(公告)号：US10524258B2

公开(公告)日：2019-12-31

申请号：US15724127

申请日：2017-10-03

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao feng Wang ,  Manikandan Chandrasekar

IPC: H04L5/14 ,  H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W72/14 ,  H04W88/08 ,  H04W88/02

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.

公开(公告)号：US10484147B2

公开(公告)日：2019-11-19

申请号：US15886244

申请日：2018-02-01

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino

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

Abstract: Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).