公开(公告)号：US11212051B2

公开(公告)日：2021-12-28

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 ,  H04W24/10 ,  H04W72/14 ,  H04W56/00 ,  H04B7/08 ,  H04B7/06

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：US11129196B2

公开(公告)日：2021-09-21

申请号：US16406624

申请日：2019-05-08

Applicant: QUALCOMM incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04L1/00 ,  H04W72/14 ,  H04W72/12 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may rate match an uplink transmission around a set of resources reserved by a base station. The base station may indicate a set of reserved resources which overlaps an uplink resource allocation to the UE. The base station may transmit an indicator of the reserved resources, and the UE may identify a location of a clear channel assessment (CCA) gap in a symbol period relative to the reserved resources. By rate matching around the reserved resources and one or more CCA gaps, the UE may transmit uplink information despite the allocated uplink resources colliding with the reserved resources.

公开(公告)号：US11122592B2

公开(公告)日：2021-09-14

申请号：US16445001

申请日：2019-06-18

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Arumugam Chendamarai Kannan ,  Yisheng Xue ,  Xiaoxia Zhang ,  Tamer Kadous

IPC: H04W72/12 ,  H04W52/28 ,  H04W72/04 ,  H04W72/10 ,  H04W74/08

Abstract: Sharing between priority access license (PAL) and general authorized access (GAA) communications in 5G new radio (NR) systems in 3.5 GHz Spectrum Access System (SAS)/License Shared Access (LSA) operations is disclosed. A resource configuration may be defined that identifies a plurality of sound reference signal (SRS) resources including at least a sounding set of SRS resources and a coexistence set of SRS resources. When communication may occur between PAL entities, a base station transmits a trigger signal to a served UE. The UP transmits an SRS in response to the trigger signal using the coexistence set of SRS resources. The SRS over the coexistence set of resources may reserve communication on the shared communication channel.

公开(公告)号：US20210273675A1

公开(公告)日：2021-09-02

申请号：US17324651

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04B1/713 ,  H04W72/04 ,  H04B7/26 ,  H04L12/413 ,  H04L5/00 ,  H04L12/46

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a discovery reference signal from a base station on an anchor channel. The UE may perform a first random or pseudorandom frequency hopping procedure to identify a plurality of downlink carriers for a first time period. The UE may perform a second random or pseudorandom frequency hopping procedure within the plurality of downlink carriers to select one of the plurality of downlink carriers as the uplink channel for a second time period. The UE may then transmit an uplink communication during the second time period on the selected uplink channel. In some examples, the uplink communication may be transmitted based at least in part on time division multiplexing (TDM) information.

公开(公告)号：US11064518B2

公开(公告)日：2021-07-13

申请号：US16135500

申请日：2018-09-19

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Ahmed Kamel Sadek ,  Vinay Chande ,  Sanaz Barghi ,  Tamer Kadous

IPC: H04W74/00 ,  H04W74/08 ,  H04B7/0408 ,  H04B7/06 ,  H04W72/04 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications are described. A base station may perform a channel access procedure on a shared radio frequency spectrum band using a first beam configuration. The base station may transmit, based at least in part on successful completion of the channel access procedure, a reservation request message (RRQ) to a user equipment (UE) using a second beam configuration, the second beam configuration comprising a beam width that is equal to or narrower than a beam width of the first beam configuration. The base station may receive a reservation response message (RRS) from the UE in response to the RRQ, the RRS comprising a third beam configuration that is based at least in part on the second beam configuration.

公开(公告)号：US11064424B2

公开(公告)日：2021-07-13

申请号：US16043042

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Yongbin Wei ,  Tamer Kadous ,  Tao Luo ,  Jing Sun

IPC: H04W48/16 ,  H04L12/825 ,  H04L5/00 ,  H04W56/00 ,  H04W16/14 ,  H04L5/14 ,  H04J11/00 ,  H04L27/26 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may perform a Listen-Before-Talk (LBT) procedure to obtain access to a wireless communication channel. The base station may then determine a pattern of synchronization signal block (SSB) transmissions based on an outcome of the LBT procedure and transmit the pattern of SSB transmissions after obtaining access to the wireless communication channel. The outcome of the LBT procedure may include obtaining access to the wireless communication channel after a missed opportunity for at least one SSB transmission in a discovery reference signal (DRS) measurement timing configuration (DMTC) window. A user equipment (UE) may determine system timing based on a received SSB transmission.

公开(公告)号：US11025403B2

公开(公告)日：2021-06-01

申请号：US15991829

申请日：2018-05-29

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Chih-Hao Liu ,  Tamer Kadous

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

Abstract: A method, an apparatus, and a computer program for wireless communication that allows for greater scheduling flexibility of physical resources are disclosed. A UE receives information from a base station about a time division duplex (TDD) frame structure of a plurality of frames that include a plurality of subframes. The UE determines a control channel search space within the plurality of subframes based on the information. The UE determines a search strategy including a maximum aggregation level based on the control channel search space. The UE performs a blind decoding of the control channel search space with the search strategy to obtain control information. The control channel search space may include a size and a location of a subset of the DL subframes allowed to carry the control information. The UE may determine a plurality of UL subframes assigned for transmitting scheduled UL resources associated with a UL control signaling.

公开(公告)号：US20210160845A1

公开(公告)日：2021-05-27

申请号：US17166867

申请日：2021-02-03

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 ,  H04L1/00 ,  H04W76/27 ,  H04L5/00 ,  H04W74/08

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：US11019605B2

公开(公告)日：2021-05-25

申请号：US16144539

申请日：2018-09-27

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Sanaz Barghi ,  Aleksandar Damnjanovic ,  Tamer Kadous

IPC: H04W72/04 ,  H04W74/08 ,  H04W74/00 ,  H04L5/00 ,  H04W72/08 ,  H04W28/26 ,  H04L1/00 ,  H04L1/08 ,  H04L5/14 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A receiving wireless device may determine that a data communication is scheduled for the wireless device on a channel of a shared radio frequency spectrum band during a transmission opportunity (TxOP) spanning a plurality of slots. The receiving wireless device may identify a subset of slots from the plurality of slots, wherein the subset of slots is associated with a channel reservation signal by the wireless device. The receiving wireless device may receive the data communication at the wireless device during the TxOP using a beam configuration. The receiving wireless device may perform repeated transmissions of the channel reservation signal based at least in part on the beam configuration during the subset of slots and within a time period associated with receiving the data communication.

公开(公告)号：US11012922B2

公开(公告)日：2021-05-18

申请号：US16040098

申请日：2018-07-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04W48/12 ,  H04W48/16 ,  H04L5/00 ,  H04W52/58 ,  H04W74/08 ,  H04W72/12 ,  H04L27/26 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A base station and user equipment (UE) may utilize an enhanced physical downlink control channel (ePDCCH) within a common search space to establish a MulteFire connection. The common search space may include a common PDCCH (C-PDCCH) and a MulteFire system information block (SIB-MF1) grant. The base station may define one or more common search spaces for the SIB-MF1 grants and C-PDCCH and signal the resource allocation for the common search spaces to the UE within a master information block (MIB). Each common search space may include a fixed set of control elements that the UE monitors for decoding the SIB-MF1 grants and C-PDCCH. In some cases, the base station may hardcode resources for the SIB-MF1 grants and C-PDCCH. Alternatively, the base station may signal the resources for each of the SIB-MF1 grants and C-PDCCH via reserved bits in the MIB.