公开(公告)号：US20210037486A1

公开(公告)日：2021-02-04

申请号：US16927900

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Ashwin Sampath ,  Navid Abedini

IPC: H04W56/00 ,  H04W24/08 ,  H04B7/06 ,  H04B7/0408 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communications are described. A wireless repeater may monitor for transmissions from multiple base stations. For example, a wireless repeater may communicate with a first base station and forward transmissions from the first base station to various user equipment (UEs). Such transmissions may include transmitting synchronization signal blocks (SSBs) for the first base station. The first base station may instruct the wireless repeater to monitor for SSBs from other base stations, where the wireless repeater may indicate the monitoring results in a report to the first base station. Based on the report, the first base station may transmit an indication of a beam pattern to the wireless repeater. The wireless repeater may use the beam pattern for repeating transmissions of SSBs received from the first base station, SSBs received from the second base station, or any combination thereof.

公开(公告)号：US20200067585A1

公开(公告)日：2020-02-27

申请号：US16673530

申请日：2019-11-04

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Xiao Feng Wang ,  Junyi Li ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04B7/06 ,  H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In aspects of the present disclosure, a user equipment (UE) may report metrics (e.g., received signal power, beam identifier) about synchronization signal (SS) beams using the same (e.g., or a similar) framework that is used for channel state information reference signal (CSI-RS) reporting. Because SSs are intended to be broadcast across a wide coverage area in a beamformed manner, the SSs represent a promising complement to existing beam management techniques. Accordingly, beam management may be achieved at least in part based on reporting one or more metrics of beamformed SSs through a channel feedback framework.

公开(公告)号：US10554284B2

公开(公告)日：2020-02-04

申请号：US15595328

申请日：2017-05-15

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Ashwin Sampath ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Alexei Yurievitch Gorokhov ,  Shrenik Patel ,  Junyi Li

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/08 ,  H04W76/10 ,  H04B7/0408

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be communicating with a base station via beamformed transmissions on an active beam. The UE may receive from the base station refined reference signals (RRSs) that include an active beam RRS corresponding to the active beam. The UE may identify that the active beam RRS corresponds to the active beam and perform a beam state measurement on the active beam RRS. The UE may refine the active beam based at least in part on the beam state information of the active beam RRS.

公开(公告)号：US10548182B2

公开(公告)日：2020-01-28

申请号：US16104656

申请日：2018-08-17

Applicant: QUALCOMM Incorporated

Inventor： Jianghong Luo ,  Muhammad Nazmul Islam ,  Sumeeth Nagaraja ,  Ashwin Sampath ,  Sundar Subramanian

IPC: G08C17/00 ,  H04W76/28 ,  H04W72/04 ,  H04W72/14 ,  H04W56/00 ,  H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit, to a user equipment (UE) operating in a discontinuous reception mode, a wakeup signal indicating whether data is available to be transmitted to the UE, the wakeup signal transmitted using a first set of transmit beams, which may be selected from a periodic beam management procedure, in accordance with a beam sweeping configuration. The base station may receive, from the UE and based at least in part on the wakeup signal, a response signal. The base station may perform, based at least in part on the response signal, further beam update procedures to identify a second set of transmit beams for future transmissions of the wakeup signal and/or for transmission of physical downlink control channel (PDCCH) to the UE.

公开(公告)号：US10531384B2

公开(公告)日：2020-01-07

申请号：US15371795

申请日：2016-12-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Tao Luo ,  Ashwin Sampath

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/08 ,  H04W56/00 ,  H04W74/00 ,  H04W24/08

Abstract: A wireless device configured for discontinuous reception (DRX) may and operating in a system that uses directional beamforming may identify a random access time period after awaking from a DRX sleep mode. The device may then transmit a scheduling request during the random access time period. In some cases, the device may transmit the scheduling request using frequency resources also associated with random access transmissions. In other cases, the device may utilize resources that are not associated with random access. The determination of which frequency resources are used may depend on the length of the DRX. That is, if a device has been in a sleep mode for a long time, it may use random access frequency resources that are associated with a more robust transmission configuration.

公开(公告)号：US10484066B2

公开(公告)日：2019-11-19

申请号：US15943586

申请日：2018-04-02

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Xiao feng Wang ,  Junyi Li ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04L5/12 ,  H04B7/06 ,  H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In aspects of the present disclosure, a user equipment (UE) may report metrics (e.g., received signal power, beam identifier) about synchronization signal (SS) beams using the same (e.g., or a similar) framework that is used for channel state information reference signal (CSI-RS) reporting. Because SSs are intended to be broadcast across a wide coverage area in a beamformed manner, the SSs represent a promising complement to existing beam management techniques. Accordingly, beam management may be achieved at least in part based on reporting one or more metrics of beamformed SSs through a channel feedback framework.

公开(公告)号：US10425200B2

公开(公告)日：2019-09-24

申请号：US15335353

申请日：2016-10-26

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Bilal Sadiq ,  Junyi Li

IPC: H04W24/00 ,  H04L5/00 ,  H04W72/08 ,  H04B7/0408 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W74/00 ,  H04W88/08

Abstract: One apparatus may be configured to detect a set of beams from a base station. The apparatus may be further configured to select a beam of the set of beams. The apparatus may be further configured to determine at least one resource based on the selected beam. The apparatus may be further configured to transmit, on the at least one determined resource, a beam adjustment request to the base station. The request may indicate an index associated with the selected beam. Another apparatus may be configured to transmit a first set of beams. The other apparatus may be further configured to receive a beam adjustment request on at least one resource. The other apparatus may be further configured to determine a beam index of a beam in the first set of beams based on the request and the at least one resource.

公开(公告)号：US10412702B2

公开(公告)日：2019-09-10

申请号：US16044453

申请日：2018-07-24

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tingfang Ji ,  Yu Zhang ,  Navid Abedini ,  Bilal Sadiq ,  Ashwin Sampath

IPC: H04W64/00 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08 ,  H04B7/06 ,  H04B7/024 ,  H04L5/00

Abstract: Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

公开(公告)号：US10397904B2

公开(公告)日：2019-08-27

申请号：US15242194

申请日：2016-08-19

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath ,  Juergen Cezanne ,  Bilal Sadiq ,  Junyi Li ,  Tao Luo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06

Abstract: Various aspects of the disclosure relate to communicating uplink control information. As one example, a user equipment may send uplink control information to a base station. In some aspects, the number of symbols used to communicate the uplink control information may be based on a link gain associated with the UE and/or based on a payload size of the uplink control information. As another example, the user equipment may send channel information for a number of beams to the base station. In some aspects, the number of beams may be based on the type of channel that is used to send the uplink control information.

公开(公告)号：US10356789B2

公开(公告)日：2019-07-16

申请号：US15663542

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

IPC: H04W72/04 ,  H04B7/06 ,  H04W72/08 ,  H04B7/0456 ,  H04B7/08

Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.