公开(公告)号：US10834665B2

公开(公告)日：2020-11-10

申请号：US16038888

申请日：2018-07-18

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Tao Luo ,  Xiaoxia Zhang

IPC: H04W48/16 ,  H04L5/00 ,  H04W24/02 ,  H04W64/00 ,  H04W24/10 ,  H04W36/00

Abstract: Methods, systems, and devices for wireless communication are described. Some wireless systems may benefit from estimation of location of a user equipment (UE) within the system. Such estimations may be based at least in part on pilot signals received from one or more reference points (e.g., base stations, access points, etc.). However, in some cases, the communication range of the pilot signals may be too small to support location estimation for at least some UEs in the system. Further, the pilot signals may consume time-frequency resources, which may reduce throughput for the system. In accordance with the described techniques, highly detectable pilot signals may coexist with synchronization signal (SS) block transmissions. Such coexistence may improve accuracy of location estimations for some, or all UEs in the system, or otherwise benefit the system.

公开(公告)号：US20200322824A1

公开(公告)日：2020-10-08

申请号：US16903998

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Taesang Yoo ,  Tao Luo

IPC: H04W24/08 ,  H04L5/00 ,  H04B7/0413 ,  H04L27/26 ,  H04L23/00

Abstract: A base station may determine a Doppler metric associated with a wireless channel and a user equipment (UE). The Doppler metric may be determined from received information related to Doppler effects measured by the UE or from directly measured Doppler effects associated with uplink data received from the UE. Based on the determined Doppler metric, the base station may select one or both of a reference signal (RS) density and a channel estimation technique for the wireless channel and associated UE. The base station may transmit an indication of the RS density to the UE. Downlink data bursts and uplink data bursts may include RSs and data according to the indicated RS density. Further, the base station may transmit to the UE, an indication to communicate using the selected wireless channel estimation technique.

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：US20200313803A1

公开(公告)日：2020-10-01

申请号：US16825364

申请日：2020-03-20

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04W72/04

Abstract: Hybrid automatic repeat request (HARQ)-acknowledgement (ACK) feedback codebook enhancements are disclosed. A size of feedback codebook may be reduced explicitly or implicitly. For example, an indicator may be identified by a corresponding field of a downlink control message. In some aspects, the indicator may indicate that multiple Physical Downlink or Uplink Shared Channels (PDSCHs/PUSCHs) are actually scheduled during one or more slots of a window corresponding to the feedback codebook. Responsive to receiving the indicator, a device may refrain from reducing the size of the feedback codebook to exclude acknowledgement feedback for additional possible PDSCH/PUSCH occasions of the slots of the window. In some aspects, a device identifies possible PDSCH/PUSCH occasions that occur outside of one or more Channel Occupancy Times (COTs) of a window. The device may generate a reduced size feedback codebook by excluding the possible PDSCH/PUSCH occasions that occur outside of the COTs of the window.

公开(公告)号：US10791567B2

公开(公告)日：2020-09-29

申请号：US16045524

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Heechoon Lee

IPC: H04L5/00 ,  H04W24/02 ,  H04W24/04 ,  H04W72/10 ,  H04L12/24 ,  H04L12/26 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. One method may include receiving, at user equipment (UE), a control resource set configuration message from a base station; identifying an overlap between a first control resource set and a second control resource set of a wireless channel; identifying a priority level of the first control resource set and a priority level of the second control resource set based on the control resource set configuration message; and monitoring the first control resource set based on the identified overlap, the priority level of the first control resource set, and the priority level of the second control resource set.

公开(公告)号：US20200304232A1

公开(公告)日：2020-09-24

申请号：US16805623

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Tao Luo ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Jing Sun ,  Wooseok Nam

IPC: H04L1/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. A UE may communicate with a set of transceiver nodes (e.g., transmission reception points (TRPs)) in a first transceiver node operation mode (e.g., a multi-TRP mode). A first transceiver node of the set of transceiver nodes may receive, from a second of the set of transceiver nodes, an indication to switch between rate matching states. The first transceiver node may switch from a first rate matching state to a second rate matching state and may transmit a downlink shared channel based on a resource configuration associated with the second rate matching state. The UE may receive the shared channel based on an antenna port configuration determined by the UE based on the first transceiver node operation and rate matching information. The rate matching information may be provided by the first transceiver node.

公开(公告)号：US20200288399A1

公开(公告)日：2020-09-10

申请号：US16802445

申请日：2020-02-26

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo Park ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Wooseok Nam

IPC: H04W52/02 ,  H04W76/28 ,  H04W80/02 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently monitoring for wake-up signaling from one or more transmission and reception points (TRPs), the wake-up signaling indicating the presence of data or control information in an on-duration state of a discontinuous reception (DRX) cycle. In particular, select TRPs may be used to transmit wake-up signaling to a user equipment (UE), and the UE may be configured to monitor for wake-up signaling from the select TRPs. Once the UE receives wake-up signaling prior to an on-duration state of a DRX cycle from any of the select TRPs, the UE may then determine the TRPs scheduled to transmit data or control information in the on-duration state (e.g., based on the WUS or based on further control signaling), and the UE may receive the data or control information from the TRPs in the on-duration state.

公开(公告)号：US10772132B2

公开(公告)日：2020-09-08

申请号：US16268249

申请日：2019-02-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Tamer Kadous

IPC: H04W74/08 ,  H04W74/00

Abstract: Physical random access channel (PRACH) configuration on new radio unlicensed (NR-U) networks is disclosed. A UE may perform PRACH transmission either with a transmission opportunity (TXOP) or outside of a TXOP. The UE monitors for a control signal, such as a preamble or common control signal, identifying a TXOP. The UE may obtain an autonomous random access configuration for communications outside of the current TXOP that identifies a random access slot includes a plurality of random access occasions. If the UE fails to detect the control signal, it transmits an autonomous random access signal in a random access occasion corresponding to a beam direction of its location in relation to the base station. Otherwise, upon detection of the control signal and receipt of a trigger signal, the UE may transmit a random access request within the TXOP.

公开(公告)号：US10757691B2

公开(公告)日：2020-08-25

申请号：US15994535

申请日：2018-05-31

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Jing Sun

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

Abstract: Certain aspects of the present disclosure provide techniques for downlink retransmission of Code Block Groups (CBGs) in the event of preemption.