公开(公告)号：US10798733B2

公开(公告)日：2020-10-06

申请号：US16276249

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W72/14 ,  H04W72/04 ,  H04W72/12 ,  H04L1/16 ,  H04L5/00 ,  H04L5/14 ,  H04L1/00

Abstract: Techniques for dynamically controlling long physical uplink control channel (PUCCH) transmission are described. In an aspect, the disclosure describes a method for receiving a grant to transmit a long PUCCH, determining a grant type of the grant, wherein the grant type is one of a periodic grant or an aperiodic grant, determining a slot type of the slot to transmit the long PUCCH, and transmitting the long PUCCH over one or more slots based on the grant, the determined slot type, and the determined grant type. In another aspect, the disclosure describes a method for generating a triggering signal to transmit to a user equipment (UE), the triggering signal indicating to the UE to transmit a PUCCH, transmitting the triggering signal to the UE, and receiving the long PUCCH in response to the triggering signal.

公开(公告)号：US20200313946A1

公开(公告)日：2020-10-01

申请号：US16804971

申请日：2020-02-28

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L27/26 ,  H04W74/08 ,  H04W72/04 ,  H04W56/00

Abstract: Wireless communications systems and methods related to signaling transmission starting offsets for uplink transmissions 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 cyclic prefix (CP) extension length configuration for providing a gap duration for a listen-before-talk (LBT) associated with a first communication signal. The first wireless communication device communicates, with the second wireless communication device, the first communication signal including a CP extension having a length based on the CP extension length configuration.

公开(公告)号：US20200267763A1

公开(公告)日：2020-08-20

申请号：US16790623

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Jing Sun ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W74/08 ,  H04W80/02 ,  H04W56/00 ,  H04W8/00 ,  H04L5/00

Abstract: Random access channel access and validity procedures are disclosed. In one aspect, the medium access control (MAC) indications multiple random access occasions (ROs) to user equipments (UEs) for random access transmissions. In such aspect, random access failure would only be declared if listen before talk (LBT) procedures for the random access transmission fail on all of the ROs indicated by the MAC layer. Similarly, in additional aspects, a UE will not apply a backoff value for any LBT failures for random access attempts that occur within an LBT time window. In further aspects, a UE may determine the validity of ROs that overlap with a discovery reference signal measurement timing configuration (DMTC) window. In such aspects, the UE may not use overlapping ROs or may determine a portion of the DMTC window that is not used for base station transmissions and declare the overlapping ROs with the unused portion valid.

公开(公告)号：US20200267757A1

公开(公告)日：2020-08-20

申请号：US16790664

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04W74/08 ,  H04W72/04 ,  H04L5/00 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for encoding uplink data for transmission based on control information included in a first uplink grant corresponding to a first set of uplink resources, receiving a second uplink grant associated with a second set of uplink resources, wherein the second uplink grant is associated with the encoded uplink data for transmission, determining a starting time (e.g., a first delay or a second delay) for the second set of uplink resources based at least in part on a timing of the encoding with respect to the second uplink grant, and transmitting uplink data during the second set of uplink resources based on the determined starting time.

公开(公告)号：US20200187250A1

公开(公告)日：2020-06-11

申请号：US16689963

申请日：2019-11-20

Applicant: QUALCOMM INCORPORATED

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

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

Abstract: Wireless communications systems and methods related to constraining no-listen-before-talk (LBT)-based transmissions during link direction switches 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 configuration for determining whether to perform an LBT after a link direction switch. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in a first link direction during a channel occupancy time (COT) period of the first wireless communication device or the second wireless communication device. The first wireless communication device communicates, with the second wireless communication device, a second communication signal in a second link direction different from the first link direction during the COT period based on the configuration.

公开(公告)号：US20190132829A1

公开(公告)日：2019-05-02

申请号：US16143179

申请日：2018-09-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. One method may include determining symbol level scheduling for symbols allocated to a plurality of user equipments (UEs) within a transmission time interval (TTI); transmitting, in a control channel of the TTI, control information indicating the symbol level scheduling; and communicating, in accordance with the symbol level scheduling, the symbols within the TTI in a plurality of beamformed transmissions. Another method may include receiving, by a UE, control information in a control channel of a TTI; processing the control information to determine a subset of symbols of the TTI allocated to the UE, a symbol length or duration of the subset of the symbols allocated to the UE, and symbol level scheduling for the subset of the symbols within the TTI; and receiving the subset of the symbols based on the control information.

公开(公告)号：US11849481B2

公开(公告)日：2023-12-19

申请号：US16912261

申请日：2020-06-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/0446 ,  H04L1/1607 ,  H04W24/08 ,  H04L5/00

CPC classification number: H04W74/0808 ,  H04L1/1614 ,  H04L5/0094 ,  H04W16/14 ,  H04W24/08 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications in unlicensed spectrum are described. In some wireless communications systems, a user equipment may identify a service parameter configured for the user equipment for a shared radio frequency channel, such as a subcarrier spacing or beam direction for a directional beam for communications with a base station. The base station may acquire a channel occupancy time for the shared radio frequency channel. The user equipment may monitor for and receive a control message for the channel occupancy time from the base station. The control message may include an indication of service associated with the service parameter and a remaining duration of the channel occupancy time. Based on the indications, the user equipment may adapt one or more receive parameters (e.g., a monitoring periodicity, monitoring time occasions, and whether to skip monitoring) for communicating with the base station during the channel occupancy time.

公开(公告)号：US11653388B2

公开(公告)日：2023-05-16

申请号：US16742558

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W74/08 ,  H04B17/318 ,  H04W72/0453

CPC classification number: H04W74/0833 ,  H04B17/318 ,  H04W72/0453

Abstract: Frequency division multiplex (FDM) random access configuration and selection is disclosed for new radio (NR) unlicensed (NR-U) operations. For idle mode user equipment (UEs), the network may configured multiple frequency bands for random access. The UE may then select different frequencies for random access when default frequencies experience interference. For connected mode UEs, the network may configured which of multiple configured frequency bands the connected UE may use for autonomous random access transmissions. The UE may then select any of the allowed frequency bands for autonomous random access. Contention-free random access resources may be configured on one or more of the multiple configured frequency bands. When contention-free resources are available, the UEs may initially attempt access of the contention-free resources on the default frequency band before attempting random access on other configured bands or the UE is provided a priority of bands for access by the network.

公开(公告)号：US11510227B2

公开(公告)日：2022-11-22

申请号：US16588658

申请日：2019-09-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Kapil Bhattad ,  Tao Luo ,  Pravjyot Singh Deogun ,  Ananta Narayanan Thyagarajan

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

Abstract: Wireless communications systems and methods related to transmission of discovery signals are provided. A wireless communication device communicates an indication of an uplink (UL) resource that falls within a discovery reference signal (DRS) measurement timing configuration (DMTC) window. The wireless communication device communicates an UL transmission within the UL resource during the DMTC window.

公开(公告)号：US11457376B2

公开(公告)日：2022-09-27

申请号：US16777618

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Jing Sun ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W24/10 ,  H04W72/04 ,  H04W16/14

Abstract: Design of robust radio link monitoring framework for unlicensed spectrum is disclosed. The network may configured two different types of radio link monitoring (RLM) reference signal (RS) resources: default resources, which are transmitted throughout a connection, and additional resources, which may be transmitted only when there has been failure of transmission or reception of the default resources. Various criteria may be used by the network to trigger scheduling transmission of the additional RLM-RS. Moreover, different criteria may prompt a user equipment (UE) to begin monitoring the additional RLM-RS resources, including autonomous and network-initiated criteria.