公开(公告)号：US20220386139A1

公开(公告)日：2022-12-01

申请号：US17303249

申请日：2021-05-25

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Raghu Narayan CHALLA ,  Yong LI ,  Ruhua HE

IPC: H04W16/28 ,  H04W80/02 ,  H04W8/24 ,  H04W56/00 ,  H04W4/021 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a base station capable of performing medium access control (MAC) based transmission configuration indication (TCI) switching. The UE may deactivate an autonomous beam switching mode based at least in part on the base station being capable of performing MAC based TCI switching. Numerous other aspects are described.

公开(公告)号：US20220225311A1

公开(公告)日：2022-07-14

申请号：US17149536

申请日：2021-01-14

Applicant: QUALCOMM Incorporated

Inventor： Michael LEVITSKY ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Assaf TOUBOUL

IPC: H04W72/04 ,  H04L5/00

Abstract: A base station may receive from a user equipment (UE) a proactive notification that the UE will perform a beam switch from a first UE beam to a second UE beam. In response, the base station may determine a beam switch slot on which the UE will perform the synchronized beam switch, and perform a link transient mitigation operation for communications with the UE after UE beam switch and until updating channel state information associated with a new UE beam. The base station may then receive from the UE channel state information feedback for a channel associated with the second UE beam, and adjust downlink data transmission parameters to be aligned with the second UE beam based on the received channel state information feedback (CSF). The base station may also adjust uplink data transmission parameters based on a sounding reference signal transmitted by the UE over the second UE beam.

公开(公告)号：US20210218461A1

公开(公告)日：2021-07-15

申请号：US17141516

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan RAGHAVAN ,  Raghu Narayan CHALLA ,  Ruhua HE ,  Mihir Vijay LAGHATE ,  Juergen CEZANNE ,  Junyi LI

IPC: H04B7/08 ,  H04B7/06 ,  H04W8/24 ,  H04B17/318 ,  H04L25/02

Abstract: Aspects of the disclosure relate to devices, systems and methods for multi-beam formation. A user equipment (UE) may determine a sampling interval for references signals to be transmitted by a base station for an upcoming control or data communication. For example, the UE may determine a maximum sampling interval tolerable for channel estimation and select the sampling interval based on the maximum. In some examples, the UE determines the sampling interval based on characteristics of its motion. The UE transmits an indication of the sampling interval to the base station. Based on the indication, the base station selects an interval for the reference signals and transmits the reference signals to the UE to enable it to perform the channel estimation for the multi-beam. The base station may determine to select the interval for the reference signals such that it is less than or equal to the sampling interval indicated by the UE.

公开(公告)号：US20210100021A1

公开(公告)日：2021-04-01

申请号：US16948485

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Peter Pui Lok ANG ,  Peter GAAL ,  Aamod KHANDEKAR ,  Yuanning YU ,  Ruhua HE ,  Alexandros MANOLAKOS ,  Tao LUO ,  Hongsan SHENG ,  Yan ZHOU

IPC: H04W72/12 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on a first carrier having a first subcarrier spacing (SCS), a scheduling indication via a physical downlink control channel (PDCCH) scheduling a downlink transmission on a second carrier having a second SCS. The UE may process the downlink transmission on the second carrier based at least in part on a delay between the PDCCH and the scheduled downlink transmission and a timing threshold having a basic term and an adjustment term. For example, the basic term may be based at least in part on a minimum delay between the PDCCH and the scheduled downlink transmission, and the adjustment term may be based at least in part on a processing time due to a difference between the first SCS and the second SCS. Numerous other aspects are provided.

公开(公告)号：US20210058930A1

公开(公告)日：2021-02-25

申请号：US16947825

申请日：2020-08-19

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Chun-Hao HSU ,  Ruhua HE

IPC: H04W72/04 ,  H04W72/12 ,  H04W56/00 ,  H04W24/10 ,  H04B17/336

Abstract: Various aspects of the present disclosure generally relate to systems, apparatuses, and methods for beam determination prior to an indication of an activated beam. A user equipment may receive a configuration for one or more transmission configuration indicator (TCI) states; receive downlink control information that schedules a downlink transmission after a time offset; determine, prior to receiving an indication of an activated TCI state of the one or more TCI states, a beam for receiving the downlink transmission; and receive the downlink transmission using the beam. Numerous other aspects are provided.

公开(公告)号：US20210045115A1

公开(公告)日：2021-02-11

申请号：US16920331

申请日：2020-07-02

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Yan ZHOU ,  Kiran VENUGOPAL ,  Jung Ho RYU ,  Tao LUO ,  Junyi LI ,  Ruhua HE

IPC: H04W72/04 ,  H04W48/16 ,  H04W76/11 ,  H04W76/15 ,  H04B7/0408

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a network entity from a user equipment (UE), a component carrier/bandwidth portion (CC/BWP) grouping capability message that indicates a capability of the UE to support CC/BWP group-based signaling; transmitting, by the network entity to the UE, a CC/BWP grouping indication that identifies at least one CC/BWP group based on the CC/BWP grouping capability message; transmitting, by the network entity to the UE, a CC/BWP configuration message that includes CC/BWP group configuration information that identifies a CC/BWP group configuration for the at least one CC/BWP group; communicating, by the network entity with the UE, on at least one CC/BWP of the at least one CC/BWP group based on one or more communication parameters configured according to the CC/BWP group configuration.

公开(公告)号：US20200244490A1

公开(公告)日：2020-07-30

申请号：US16848747

申请日：2020-04-14

Applicant: QUALCOMM Incorporated

Inventor： Juergen CEZANNE ,  Ruhua HE ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Junyi LI ,  Raghu Narayan CHALLA

IPC: H04L25/02 ,  H04B7/06 ,  H04B17/309 ,  H04B7/0456 ,  H04B17/382 ,  H04L1/00 ,  H04L5/00 ,  H04B17/27 ,  H04B7/08 ,  H04B7/0413

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication with a network. In some aspects, the scheduled entity transmits a message that requests a scheduling entity to transmit at least one reference signal. The scheduled entity obtains channel state information based on the at least one reference signal. The scheduled entity transmits a report that includes the channel state information. In other aspects, the scheduled entity transmits a message that requests a scheduling entity to schedule a reference signal transmission for the scheduled entity. The scheduled entity obtains an assignment of resources for transmission of the reference signal in response to the message. The scheduled entity transmits the reference signal based on the assignment of resources. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20200244340A1

公开(公告)日：2020-07-30

申请号：US16847515

申请日：2020-04-13

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Valentin Alexandru GHEORGHIU ,  Ruhua HE

IPC: H04B7/08 ,  H04B7/06 ,  H04W52/02 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for signaling of UE intra/inter-panel beam switch latency using communications systems operating according to new radio (NR) technologies. For example, the method generally includes determining at least a first latency associated with a beam switch across at least first and second antenna array modules, wherein the first latency is greater than or equal to a second latency associated with a beam switch within the first or second antenna module, and signaling a second device an indication of when to assume the first latency for a beam switch at the first device.

公开(公告)号：US20190260456A1

公开(公告)日：2019-08-22

申请号：US16274359

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Valentin Alexandru GHEORGHIU ,  Raghu CHALLA ,  Ruhua HE ,  Yong LI ,  Timo Ville VINTOLA

IPC: H04B7/06 ,  H04W24/08 ,  H04L1/18

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing beam switch latency using communications systems operating according to new radio (NR) technologies. For example, the method generally includes determining a latency associated with a beam switch from a source antenna array module to a target antenna array module when the target module is in a low power mode; and signaling a base station to use the determined latency after sending a command for the beam switch.

公开(公告)号：US20190245605A1

公开(公告)日：2019-08-08

申请号：US16267303

申请日：2019-02-04

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Junyi LI ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Raghu CHALLA ,  Ruhua HE ,  Yong LI ,  Jun ZHU ,  Tianyang BAI

IPC: H04B7/06 ,  H04B17/327 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08

Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.