公开(公告)号：US20210159991A1

公开(公告)日：2021-05-27

申请号：US17082748

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO

IPC: H04B17/309 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W24/10 ,  H04W24/06

Abstract: A method, a computer-readable medium, and an apparatus are provided for wireless communication at a user equipment. The UE receives an indication from a base station that a medium access control-control element (MAC-CE) activation of a pathloss reference signal is enabled. The UE receives a MAC-CE activating the pathloss reference signal. The UE determines the pathloss reference signal based on the MAC-CE and the indication that indicates that the MAC-CE activation of the pathloss reference signal is enabled. Then, the UE estimates a downlink pathloss based on the pathloss reference signal that is activated by the MAC-CE.

公开(公告)号：US20210153284A1

公开(公告)日：2021-05-20

申请号：US17096873

申请日：2020-11-12

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Hamed PEZESHKI ,  Tao LUO

IPC: H04W76/18 ,  H04L12/24 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for reporting and responding to beam failure events based on a receiving cell restriction rule. An example method includes detecting an occurrence of a threshold number of beam failures for a connection between a UE and a set of cells; identifying a candidate beam for restoring the connection between the UE and the set of cells in response to detecting the occurrence of the threshold number of beam failures; transmitting, to one or more cells in the set of cells, a beam failure recovery (BFR) request including an identification of the candidate beam; receiving, from a cell in the set of cells, a BFR response in response to transmitting the BFR request, wherein the BFR response is received according to a restriction rule; and resuming communications with the set of cells based on the BFR response.

公开(公告)号：US20210152234A1

公开(公告)日：2021-05-20

申请号：US17096874

申请日：2020-11-12

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Hamed PEZESHKI ,  Tao LUO

IPC: H04B7/08 ,  H04W76/19 ,  H04L1/18 ,  H04W76/11 ,  H04W74/08 ,  H04L5/00

Abstract: Aspects relate to mechanisms for wireless communication devices to report a beam failure. A UE detects a beam failure with a cell. The UE transmits a beam failure recovery request including an indication of a candidate beam to a base station in response to detecting the beam failure. The base station transmits a beam failure recovery response to the UE indicating whether the beam failure recovery request is received. The UE applies the candidate beam indicated in the beam failure recovery request for a downlink channel following a predetermined number of symbols after an end of the beam failure recovery response. The UE transmits an acknowledgment (ACK) message to the base station when the beam failure recovery response is decoded. The UE applies the candidate beam indicated in the beam failure recovery request for a downlink channel following a predetermined number of symbols after an end of the ACK message.

公开(公告)号：US20210152230A1

公开(公告)日：2021-05-20

申请号：US17092085

申请日：2020-11-06

Applicant: QUALCOMM Incorporated

Inventor： Awlok Singh JOSAN ,  Valentin Alexandru GHEORGHIU ,  Yan ZHOU ,  Tao LUO

IPC: H04B7/06 ,  H04L5/00

Abstract: A configuration to enable a UE to switch beams of respective CCs based on certain factors (e.g., RTD or TCI states), and not switch the beams simultaneously. The apparatus receives, from a base station, a transmission including an indication to change at least one of a TCI state for multiple CCs, a spatial relation for the multiple CCs, or a PL RS for the multiple CCs. The apparatus switches beams in response to the transmission, where timing of the switching is based on a grouping of the multiple CCs.

公开(公告)号：US20210144740A1

公开(公告)日：2021-05-13

申请号：US16805383

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Wei YANG ,  Seyedkianoush HOSSEINI ,  Yan ZHOU

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may combine an indication of a beam failure recovery request or one or more scheduling requests with uplink control information that is to be transmitted in a resource. The UE may transmit the uplink control information combined with the indication in the resource. Numerous other aspects are provided.

公开(公告)号：US20210144563A1

公开(公告)日：2021-05-13

申请号：US16948011

申请日：2020-08-27

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Yan ZHOU

IPC: H04W16/28 ,  H04B7/06 ,  H04L5/00 ,  H04W52/24 ,  H04W72/04 ,  H04L25/02 ,  H04L5/10 ,  H04W56/00 ,  H04W24/10 ,  H04W76/28 ,  H04B17/336

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit a message, to a user equipment (UE), instructing the UE to activate or update a reference signal (RS) corresponding to an uplink communication transmitted by the UE. The base station may communicate with the UE, after a time period, using a beam configuration of the base station that corresponds to a beam configuration of the UE for transmitting the RS, the time period being based at least in part on a determination of whether the UE identified the beam configuration of the base station. Numerous other aspects are provided.

公开(公告)号：US20210136604A1

公开(公告)日：2021-05-06

申请号：US16949410

申请日：2020-10-28

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Mostafa KHOSHNEVISAN ,  Hamed PEZESHKI

IPC: H04W24/04 ,  H04L5/00 ,  H04W72/04

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A component carrier group may be configured for beam management, such that beam management on a first component carrier is applied to one or more second component carriers to reduce signaling overhead associated with controlling a defined group of component carriers. A user equipment may be configured to identify a group of component carriers and, when a beam failure detection reference signal is received from a base station on a first component carrier, identify a beam failure condition for the first component carrier and one or more second component carriers of the group of component carriers.

公开(公告)号：US20210135740A1

公开(公告)日：2021-05-06

申请号：US16803593

申请日：2020-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Seyedkianoush HOSSEINI ,  Yi HUANG ,  Tao LUO

IPC: H04B7/08 ,  H04W72/04 ,  H04W72/12 ,  H04W72/10 ,  H04W76/27 ,  H04W80/02 ,  H04L1/18

Abstract: Certain aspects of the present disclosure provide techniques for managing beam failure recovery operations. A method that may be performed by a user equipment (UE) generally includes selecting a priority associated with an uplink (UL) control channel for indicating a beam failure recovery request (BFRQ), detecting that the UL control channel is scheduled for transmission using first resources at least partially overlapped with second resources scheduled for transmission of another UL signal, determining, in response to the detection, whether to transmit the UL control channel based on the priority associated with the UL control channel, and transmitting or dropping the UL control channel in accordance with the determination.

公开(公告)号：US20210120500A1

公开(公告)日：2021-04-22

申请号：US17071911

申请日：2020-10-15

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Hamed PEZESHKI ,  Xiao Feng WANG ,  Tao LUO

IPC: H04W52/24 ,  H04W80/02 ,  H04W52/14 ,  H04L5/00 ,  H04L25/02 ,  H04B17/309

Abstract: Aspects relate to wireless communication on multiple component carriers. In some examples, a user equipment (UE) may apply pathloss reference signal information received via a medium access control-control element (MAC-CE) to a set of component carriers for transmitting uplink information. Examples of such transmissions of uplink information include a physical uplink shared channel transmission, a physical uplink control channel transmission, and a sounding reference signal transmission. In some examples, the UE may identify the set of component carriers based on a component carrier identified by the MAC-CE.

公开(公告)号：US20210111787A1

公开(公告)日：2021-04-15

申请号：US17067318

申请日：2020-10-09

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04W80/02 ,  H04W72/14 ,  H04W16/28 ,  H04W72/04 ,  H04W76/11

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for performing beam failure recovery involving a secondary cell.