公开(公告)号：US20210351870A1

公开(公告)日：2021-11-11

申请号：US17381493

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

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

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

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：US11171745B2

公开(公告)日：2021-11-09

申请号：US16894542

申请日：2020-06-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/04

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：US11134509B2

公开(公告)日：2021-09-28

申请号：US16662984

申请日：2019-10-24

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W72/12 ,  H04W16/14 ,  H04W74/08 ,  H04W72/14

Abstract: Wireless communications systems and methods related to uplink (UL) communications in a wireless network are provided. In one embodiment, a first wireless communication device receives a transmission grant indicating a transmission period. The first wireless communication device selects a starting location for transmitting a communication signal from among a plurality of starting locations within the transmission period. The first wireless communication device transmits the communication signal during the transmission period based on the selected starting location. In one embodiment, a first wireless communication device transmits, to a second wireless communication device, a transmission grant indicating a transmission period. The first wireless communication device monitors for a communication signal from the second wireless communication device in the transmission period. The first wireless communication device identifies, upon detection of the communication signal, a starting location of the communication signal from among a plurality of starting locations within the transmission period.

公开(公告)号：US11115175B2

公开(公告)日：2021-09-07

申请号：US16563612

申请日：2019-09-06

Applicant: QUALCOMM Incorporated

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

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

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband 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 determine a narrowband TDD frame structure for narrowband communications. The apparatus may also determine a PUSCH format of a group of PUSCH formats for allocating at least one RU to a UE for a NPUCCH. In addition, the apparatus may allocate the at least one RU to the UE using the determined PUSCH format. In one aspect, the RU may include one or more subcarriers in each of one or more slots.

公开(公告)号：US20210274469A1

公开(公告)日：2021-09-02

申请号：US17326235

申请日：2021-05-20

Applicant: QUALCOMM Incorporated

Inventor： Alberto Rico Alvarino ,  Miguel Griot ,  Kapil Bhattad ,  Haris Zisimopoulos ,  Lenaig Genevieve Chaponniere ,  Mungal Singh Dhanda

IPC: H04W72/00 ,  H04W28/02 ,  H04W72/04 ,  H04W72/08

Abstract: Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support a determination of user equipment (UE) capabilities, such as a category or a coverage level for broadcast or multicast content. In some cases, a radio interface may be configured to account for an indicated capability of a target UE. For example, a base station may receive an indication of a capability of a particular targeted UE. The capability of the targeted UE may be specified by a service provider to deliver multicast or broadcast content, and subsequently associated with a radio interface between the base station and the target UE. The radio interface may then be configured based on the indicated capability of the target UE, for example, by configuring a transport block size or bandwidth. The base station may then transmit broadcast or multicast content to the UE using the configured radio interface.

公开(公告)号：US20210195638A1

公开(公告)日：2021-06-24

申请号：US17249586

申请日：2021-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W74/08 ,  H04W72/14 ,  H04L5/00 ,  H04L5/10 ,  H04W72/12

Abstract: Wireless communications systems and methods related to sharing a channel occupancy time (COT) associated with a scheduled UL transmission in a frequency spectrum shared by multiple network operating entities are provided. A first wireless communication device communicates, with a second wireless communication device, a first uplink (UL) scheduling grant. The first wireless communication device communicates, with second wireless communication device, a first UL communication signal based on the first UL scheduling grant during a first COT, the first COT based on an extended clear channel assessment (eCCA) associated with the first UL communication signal. The first wireless communication device communicates, with the second wireless communication device, a downlink (DL) communication signal during the first COT based on COT sharing information associated with the first COT.

公开(公告)号：US11032818B2

公开(公告)日：2021-06-08

申请号：US16658762

申请日：2019-10-21

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

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

Abstract: Wireless communications systems and methods related to channel reservations and channel monitoring in a channel shared by multiple network operating entities are provided. A first wireless communication device transmits a first configuration indicating a first set of channel monitoring occasions for a channel. Each channel monitoring occasion of the first set of channel monitoring occasions is aligned to a start of a transmission slot. The first wireless communication device transmits, based on a first listen-before-talk (LBT) in the channel, a first channel reservation signal to reserve a first transmission opportunity (TXOP) in the channel, the first channel reservation signal transmitted during a first channel monitoring occasion of the first set of channel monitoring occasions that is within the first TXOP. The first wireless communication device communicates, with a second wireless communication device, a first communication signal in the channel during the first TXOP.

公开(公告)号：US10958337B2

公开(公告)日：2021-03-23

申请号：US15707003

申请日：2017-09-18

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/26 ,  H04J3/06 ,  H04L5/14 ,  H04L5/02 ,  H04L5/00 ,  H04W4/70 ,  H04L1/08 ,  H04L5/24 ,  H04W72/04 ,  H04L1/04 ,  H04W56/00

Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband 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 determine a narrowband communication frame structure comprising a FDD mode or a TDD mode and a particular TDD frame structure for narrowband communications from a group of narrowband TDD frame structures. The apparatus may determine a periodicity, subframe number, and transmission sequence associated with a SSS based at least in part on the narrowband TDD frame structure. The apparatus may transmit the SSS using the narrowband TDD frame structure determined for the narrowband communications. In one aspect, the SSS may be transmitted in a same subframe within a frame and at a periodicity of 2 or more frames.

公开(公告)号：US10939441B2

公开(公告)日：2021-03-02

申请号：US16258938

申请日：2019-01-28

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing Sun ,  Xiaoxia Zhang ,  Yongbin Wei ,  Tamer Kadous ,  Srinivas Yerramalli ,  Tao Luo

IPC: H04W36/30 ,  H04W72/04 ,  H04W76/11 ,  H04W24/08 ,  H04L1/00 ,  H04W76/27 ,  H04L5/00 ,  H04W74/08 ,  H04W74/00 ,  H04B7/08 ,  H04B7/06

Abstract: A base station may configure a set of autonomous uplink (AUL) resources for a specific base station receive beam, or the AUL resources may be configured for specific user equipment (UEs) or user groups. Additionally, the AUL resources may be configured to include a sensing portion, a data portion, or both. As an example, a UE may receive an AUL configuration that includes an indication of a set of AUL resources that are specific to a base station receive beam. The UE may then determine that the set of AUL resources is available and perform an AUL transmission of uplink data using the set of beam-specific AUL resources. Additionally or alternatively, the UE may perform the AUL transmission with respective portions that include a sensing signal and the uplink data. The base station may use the sensing signal to determine a receive beam on which to receive the uplink data.

公开(公告)号：US20210051709A1

公开(公告)日：2021-02-18

申请号：US16993192

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Jing Sun ,  Xiaoxia Zhang

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

Abstract: Methods, systems, and devices for wireless communications are described that support listen before talk (LBT) for uplink transmissions using multiple subbands. A base station may support communication with a user equipment (UE) via multiple subbands and may transmit an uplink grant to the UE that allocates resources of the multiple subbands for transmission of a shared data channel by the UE. The base station may include an indication within the uplink grant that indicates to the UE to perform a given type of LBT for each subband. After transmitting the uplink grant, the base station may transmit control information or other signaling (e.g., channel occupancy time system information (COT-SI)) that indicates subbands on which the UE is to perform a given type of LBT or other subbands on which the UE is to perform a different type of LBT.