公开(公告)号：US10686629B2

公开(公告)日：2020-06-16

申请号：US16523631

申请日：2019-07-26

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Wanshi Chen

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02 ,  H04B7/0417 ,  H04B7/06

Abstract: Aspects of the present disclosure disclose techniques for implementing a wideband reference signal to improve the narrowband channel estimation performance associated with narrowband demodulation reference signal (DMRS) for the data channel in NR communications. Specifically, because the wideband reference signal may occupy wider bandwidth than the DMRS, the channel estimation realized may be more accurate than solely relying on the narrowband DMRS. In some examples, the wideband reference signal, which may be control reference signals (CRS), channel state information (CSI) reference signal (CSI-RS) in downlink or uplink sounding reference signal (SRS), may be associated with a corresponding narrowband DMRS in a data channel. The wideband reference signal may be either included in the control channel region or the data channel region.

公开(公告)号：US20200177323A1

公开(公告)日：2020-06-04

申请号：US16698298

申请日：2019-11-27

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Seyedkianoush Hosseini ,  Xiaoxia Zhang ,  Jing Jiang ,  Wei Yang

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

Abstract: Methods, systems, and devices for wireless communications are described that provide for unambiguous mapping between downlink control channel transmissions, downlink shared channel transmissions, and uplink acknowledgment feedback resources. The uplink acknowledgment feedback resource may be located within a same transmission time interval (TTI). A base station may configure codebook-based acknowledgment resources from a user equipment (UE), and feedback delay values may be associated with time domain resources of the downlink shared channel transmissions. In some examples, feedback delay values may be associated with particular search spaces or monitoring occasions of the downlink control channel transmissions that include resource allocations for the downlink shared channel transmissions. A UE using codebook-based acknowledgment feedback resources may thus unambiguously identify uplink resources that are to be used for transmitting the uplink acknowledgment feedback.

公开(公告)号：US20200154444A1

公开(公告)日：2020-05-14

申请号：US16743734

申请日：2020-01-15

Applicant: QUALCOMM INCORPORATED

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04W72/08 ,  H04B7/06 ,  H04B7/0417 ,  H04W72/04 ,  H04W16/28

Abstract: Systems, devices, and methods associated with interference aware sounding reference signals are provided. A method for wireless communication includes receiving, at a wireless communication device in communication with a first base station, an interfering signal from a second base station (or others); determining, at the wireless communication device, a spatial direction of the interfering signal; and transmitting, with the wireless communication device, a signal to the first base station based on the spatial direction of the interfering signal. Another method includes receiving, at a first base station, a signal from a wireless communication device, the signal based on a spatial direction of an interfering signal received by the wireless communication device from a second base station (or others); transmitting, with the first base station, a downlink communication to the wireless communication device, the downlink communication beamformed in the spatial direction based on the signal received from the wireless communication device.

公开(公告)号：US10651990B2

公开(公告)日：2020-05-12

申请号：US16171052

申请日：2018-10-25

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Jing Jiang

IPC: H04L5/00 ,  H04L1/18 ,  H04B7/06 ,  H04L25/02

Abstract: Various aspects described herein relate to techniques for improving ultra-reliable low-latency communications (URLLC) used in wireless communication systems (e.g., 5G New Radio). In an aspect, a method of wireless communications includes identifying at least a first hybrid automatic repeat request (HARQ) transmission and a second HARQ transmission, wherein at least one of the identified HARQ transmissions is for URLLC, receiving an indication including information of reference signal handling for the identified HARQ transmissions, and performing the reference signal handling based on the information.

公开(公告)号：US20200100226A1

公开(公告)日：2020-03-26

申请号：US16580950

申请日：2019-09-24

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Chih-Ping Li ,  Jing Jiang

IPC: H04W72/04 ,  H04W72/10 ,  H04W52/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station in wireless communication with the UE, an allocation of time and frequency resources for an uplink transmission of a first communication type associated with a threshold reliability or latency metric. The UE may monitor a control channel for an uplink preemption indication from the base station, the uplink preemption indication indicating whether the UE should transmit the uplink transmission using the first communication type associated with the threshold reliability or latency metric. The UE may then process the uplink transmission based on monitoring the control channel for the uplink preemption indication.

公开(公告)号：US20200053744A1

公开(公告)日：2020-02-13

申请号：US16532826

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Chih-Ping Li ,  Wanshi Chen ,  Jing Jiang

IPC: H04W72/12 ,  H04L5/00 ,  H04W28/06 ,  H04W80/10 ,  H04W76/18 ,  H04W28/10

Abstract: A wireless communications system may support a large number of user equipment (UEs) and a base station may transmit resource configuration information to a group of UEs, in which the configuration information identifies the group of UEs. In some cases, the base station may receive a data transmission from a UE of the UE group that the base station cannot decode. The base station may then transmit a group-common feedback signal to the UE group. Once the transmitting UE of the UE group receives the group-common signal, the UE may re-transmit the data to the base station. By sending a group-common feedback signal, the base station may conserve resources, improve reliability and increase successful uplink transmissions from UEs.

公开(公告)号：US20200044784A1

公开(公告)日：2020-02-06

申请号：US16523896

申请日：2019-07-26

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Seyedkianoush Hosseini ,  Jing Jiang ,  Wanshi Chen ,  Chih-Ping Li

IPC: H04L1/18 ,  H04W24/08 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Methods, systems, and devices for increasing the reliability of low latency transmissions are described. For example, multiple control messages and/or multiple data messages may be transmitted for a single transport block. Explicit and/or implicit signaling may be used to support the repetition of control and data transmissions in a low latency environment. For example, explicit signaling may be used to indicate a correspondence between repeated control and/or data messages. Additionally or alternatively, particular configurations may be used to implicitly signal a correspondence between repeated control and/or data messages.

公开(公告)号：US20200037352A1

公开(公告)日：2020-01-30

申请号：US16508843

申请日：2019-07-11

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Jing Jiang ,  Wanshi Chen ,  Peter Gaal ,  Tingfang Ji ,  Chih-Ping Li ,  Seyedkianoush Hosseini

IPC: H04W72/14 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may transmit an expiration indication to a receiving device as part of a scheduling message for a transport block. The expiration indication may provide information related to an expiration time for the transport block. If the expiration time is reached prior to successful reception by a receiving device, the receiving device may assume that the transport block has expired and may refrain from transmitting a retransmission grant, or may empty a hybrid automatic repeat request (HARM) buffer associated with the transport block. If the transmitting device fails to successfully receive an indication from the receiving device of a successful reception of the transport block prior to the expiration period, the transmitting device may also assume that the transport block has expired.

公开(公告)号：US10541791B2

公开(公告)日：2020-01-21

申请号：US14689853

申请日：2015-04-17

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Joseph Binamira Soriaga ,  Jing Jiang ,  John Edward Smee ,  Naga Bhushan ,  Kambiz Azarian Yazdi ,  Krishna Kiran Mukkavilli

IPC: H04L1/18 ,  H04W74/02 ,  H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices are described for wireless communication. In one method, a first transmission may be transmitted on a contention-based channel, and a scheduling request for the first transmission may be transmitted on a scheduled channel. The scheduling request may be transmitted prior to determining that an acknowledgment (ACK) message has been received for the first transmission. In another method, a scheduling request for a first transmission may be received on a scheduled channel from a wireless device. Upon decoding a reception of the first transmission on a contention-based channel, transmission of a transmission grant to the wireless device may be withheld. Upon failing to decode the reception of the first transmission on the contention-based channel, the transmission grant may be transmitted to the wireless device.

公开(公告)号：US20200007294A1

公开(公告)日：2020-01-02

申请号：US16451827

申请日：2019-06-25

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Alexandros Manolakos ,  Jing Jiang ,  Yi Huang

IPC: H04L5/00 ,  H04W52/14

Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a user equipment (UE) with quasi co-located (QCL) associations between a physical uplink control channel and a sounding reference signal (SRS) transmission for at least one time and frequency domain channel parameter. The UE may transmit, in accordance with the QCL association, a control channel transmission via the physical uplink control channel using an antenna port that is quasi co-located with at least one antenna port for transmitting the SRS transmission and transmit, in accordance with the QCL association, the SRS transmission via the at least one antenna port. In another example, the base station may configure the UE with an antenna port association between an SRS transmission and a physical uplink control channel. The UE may transmit the SRS transmission and a control channel transmission in accordance with the antenna port association.