公开(公告)号：US20200084770A1

公开(公告)日：2020-03-12

申请号：US16681389

申请日：2019-11-12

Applicant: QUALCOMM Incorporated

Inventor： Gowrisankar SOMICHETTY ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Manikandan Chandrasekar

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

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：US10575336B2

公开(公告)日：2020-02-25

申请号：US16032517

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Kapil Bhattad ,  Jing Sun ,  Tao Luo ,  Yi Huang

IPC: H04W74/08 ,  H04B14/02 ,  H04L27/26 ,  H04B7/17 ,  H04L5/00

Abstract: Wireless communications systems and methods related to communicating a sequence-based signal in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a sequence-based signal in the frequency spectrum. The configuration indicates resources in a frequency spectrum and a frequency distribution mode of the resources. The first wireless communication device communicates the sequence-based signal with a second wireless communication device in the frequency spectrum based on the configuration. The sequence-based signal includes at least one of a physical uplink control channel (PUCCH) signal or a physical random access channel (PRACH) signal. The frequency distribution mode indicates at least one of a frequency interlaced structure, a frequency comb structure, or a frequency mini-interlaced structure.

公开(公告)号：US10542538B2

公开(公告)日：2020-01-21

申请号：US15724068

申请日：2017-10-03

Applicant: QUALCOMM Incorporated

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

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

Abstract: A method, computer-readable medium, and apparatus are provided. The apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.

公开(公告)号：US20200008107A1

公开(公告)日：2020-01-02

申请号：US16426943

申请日：2019-05-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Tamer Kadous ,  Taesang Yoo ,  Jing Sun ,  Kapil Bhattad

IPC: H04W28/26 ,  H04W74/08 ,  H04W8/24 ,  H04W24/08 ,  H04L5/00

Abstract: Wireless communications systems and methods related to communicating in a shared communication medium with flexible scheduling are provided. A first wireless communication device communicates, with a second wireless communication device during a reservation period, a channel reservation request for a first transmission opportunity (TXOP) in a spectrum. The first wireless communication device communicates, with the second wireless communication device during a response period in response to the channel reservation request, a channel reservation response. The first wireless communication device communicates, with a third wireless communication device during a first time period between the reservation period and the response period, a first communication signal.

公开(公告)号：US10448421B2

公开(公告)日：2019-10-15

申请号：US15719030

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04W72/12 ,  H04W72/14 ,  H04W72/04 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communication are described for cross-carrier scheduling for wireless devices. In an example, a wireless device may monitor a control channel on a first carrier of a plurality of carriers to obtain a grant allocating resources to the wireless device within a shared data channel. In some cases, a time duration between the grant and the allocated resources within the shared data channel is based at least in part on which carrier of the plurality of carriers transports the shared data channel. The wireless device may transmit or receive over the shared data channel using the allocated resources and based at least in part on the time duration.

公开(公告)号：US20190280836A1

公开(公告)日：2019-09-12

申请号：US16292293

申请日：2019-03-04

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W74/08 ,  H04W56/00 ,  H04W72/14 ,  H04W24/10

Abstract: Beam-specific autonomous uplink (AUL) resources may be configured with an associated reference signal for beam management. For example, a base station may configure respective sets of AUL resources that are specific to one or more base station receive beams. These sets of beam-specific AUL resources may be configured to be associated (e.g., quasi co-located (QCL)) with a reference signal, such as a channel state information reference signal (CSI-RS), a synchronization signal burst (SSB), or the like. The base station may periodically transmit the reference signals that are associated with the AUL resources. A user equipment (UE), upon detecting one or more of the reference signals, may identify which set of AUL resources are available for an AUL transmission of uplink data. In such cases, the UE may select a set of AUL resources based on a signal strength of the reference signal associated with that set of AUL resources.

公开(公告)号：US20190239202A1

公开(公告)日：2019-08-01

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: H04W72/04 ,  H04W76/11 ,  H04W24/08 ,  H04L5/00 ,  H04L1/00 ,  H04W76/27

CPC classification number: H04W72/046 ,  H04L1/0003 ,  H04L5/005 ,  H04W24/08 ,  H04W72/042 ,  H04W76/11 ,  H04W76/27

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：US20190053280A1

公开(公告)日：2019-02-14

申请号：US16031851

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Alberto RICO ALVARINO ,  Achaleshwar Sahai ,  Kapil Bhattad ,  Sven Fischer ,  Mungal Singh Dhanda ,  Wanshi Chen ,  Peter Gaal

IPC: H04W74/08 ,  H04L5/00 ,  H04W64/00 ,  H04W4/70

Abstract: A user equipment (UE) may determine that a channel, such as a downlink channel or an uplink channel, and a positioning reference signal (PRS) occasion are scheduled for a common set of resources, such as a common frequency, a common time, and/or the like. This may result in the UE being unable to receive the PRS and/or process the PRS as a result of receiving the channel. In some aspects, the UE may determine that a PRS collides with a channel, and may perform a collision response action, such as dropping at least a portion of the channel, based at least in part on determining that the PRS occasion collides with the channel.

公开(公告)号：US20190045548A1

公开(公告)日：2019-02-07

申请号：US16032517

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Taesang Yoo ,  Kapil Bhattad ,  Jing Sun ,  Tao Luo ,  Yi Huang

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04B14/02

CPC classification number: H04W74/0833 ,  H04B7/17 ,  H04B14/026 ,  H04L5/0007 ,  H04L5/0017 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2613

Abstract: Wireless communications systems and methods related to communicating a sequence-based signal in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a sequence-based signal in the frequency spectrum. The configuration indicates resources in a frequency spectrum and a frequency distribution mode of the resources. The first wireless communication device communicates the sequence-based signal with a second wireless communication device in the frequency spectrum based on the configuration. The sequence-based signal includes at least one of a physical uplink control channel (PUCCH) signal or a physical random access channel (PRACH) signal. The frequency distribution mode indicates at least one of a frequency interlaced structure, a frequency comb structure, or a frequency mini-interlaced structure.

公开(公告)号：US20180376498A1

公开(公告)日：2018-12-27

申请号：US16000624

申请日：2018-06-05

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Hao Xu ,  Alberto Rico Alvarino ,  Xiao Feng Wang ,  Peter Gaal ,  Nerrie Zohn

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/18 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive data in a downlink transmission from a base station. After the UE successfully processes the data, the UE may select a transmit time interval (TTI) in which to send an acknowledgement (ACK) of the data to the base station. In some examples, the UE may select the TTI based on a delay that is a function of the processing abilities of the UE. Additionally or alternatively, the UE may select the TTI based on a delay that is a function of the transmission parameters of the downlink transmission. After selecting the TTI, the UE may send the ACK to the base station in the selected TTI.