公开(公告)号：US20210068157A1

公开(公告)日：2021-03-04

申请号：US16556146

申请日：2019-08-29

Applicant: QUALCOMM Incorporated

Inventor： Ori AUSLENDER ,  Ran BERLINER ,  Ambarish TRIPATHI ,  Junsheng HAN ,  Muhammad Nazmul ISLAM ,  Michael LEVITSKY

IPC: H04W74/08 ,  H04W72/04 ,  H04W56/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine to initiate a random access channel (RACH) procedure with a base station (BS). The UE may determine, based at least in part on determining to initiate the RACH procedure, whether a timing alignment timer, associated with a timing alignment of the UE and the BS, is expired. The UE may initiate the RACH procedure using the timing alignment based at least in part on determining that the timing alignment timer is not expired. Numerous other aspects are provided.

公开(公告)号：US20210068066A1

公开(公告)日：2021-03-04

申请号：US17002560

申请日：2020-08-25

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Luca BLESSENT ,  Muhammad Nazmul ISLAM ,  Jianghong LUO ,  Karl Georg HAMPEL ,  Tao LUO ,  Junyi LI

IPC: H04W56/00

Abstract: Aspects provide for autonomous adjustment of the uplink and downlink transmission timing in wireless communication networks. A radio access network (RAN) entity (e.g., a scheduling entity, such as a base station or parent integrated access backhaul (IAB) node, or a centralized network node, such as an IAB donor node central unit) may provide support to a scheduled entity (e.g., a user equipment (UE) or child IAB node) to operate in an autonomous time adjustment (ATA) mode to autonomously adjust its uplink transmission timing to compensate for the change in downlink reception timing. The RAN entity may generate ATA mode information related to the ATA mode for the scheduled entity and transit the ATA mode information to the scheduled entity.

公开(公告)号：US20210050902A1

公开(公告)日：2021-02-18

申请号：US16993119

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Awlok Singh JOSAN ,  Arash MIRBAGHERI ,  Valentin Alexandru GHEORGHIU

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/19 ,  H04W24/08 ,  H04W24/10 ,  H04W56/00 ,  H04W48/16

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for determining, by a user equipment (UE), an evaluation time period based on a number of a plurality of reference signals that are quasi-co-located (QCL) within one or more measurement windows; measuring, by the UE, a signal quality value of one or more of reference signals within the evaluation time period; and determining, by the UE, whether the signal quality value of one or more of reference signals within the evaluation time period crosses an evaluation threshold.

公开(公告)号：US20210028968A1

公开(公告)日：2021-01-28

申请号：US17069617

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Bilal SADIQ ,  Juergen CEZANNE

IPC: H04L27/26 ,  H04W68/02 ,  H04W8/24 ,  H04W68/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for multiplexing new radio (NR) synchronization signals and paging signals. A Base Station (BS) decides whether or not to multiplex paging and synchronization signals in a set of time resources, a set of frequency resources or a combination thereof, the deciding based on at least one of a capability of the BS, a capability of at least one User Equipment (UE) served by the BS, an operating frequency band or a combination of tone spacings of the paging signals and the synchronization signals.

公开(公告)号：US20200344707A1

公开(公告)日：2020-10-29

申请号：US16927103

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Tao LUO ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Chinmay VAZE ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV

IPC: H04W56/00 ,  H04W72/04 ,  H04L5/00

Abstract: According to certain aspects of the present disclosure, indicating which neighbor cells are synchronous or asynchronous with a serving cell may allow a UE to determine whether it can derive neighbor cell RS timing based on the serving cell timing.

公开(公告)号：US20200214042A1

公开(公告)日：2020-07-02

申请号：US16631402

申请日：2018-07-25

Applicant: Sumeeth NAGARAJA ,  Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Peng CHENG ,  QUALCOMM Incorporated

Inventor： Sumeeth NAGARAJA ,  Muhammad Nazmul ISLAM ,  Sundar SUBRAMANIAN ,  Tao LUO ,  Peng CHENG

IPC: H04W74/08 ,  H04W74/02 ,  H04W76/19 ,  H04W36/08 ,  H04W16/28 ,  H04B7/06

Abstract: A user equipment (UE) may initiate a random access (RACH) procedure using an uplink resource selected based on a corresponding received synchronization signal block. The UE may detect a random access procedure trigger. The UE may configure a selection threshold time. The selection threshold time may be based at least in part on a latency requirement of the UE. The UE may select a synchronization signal block having a corresponding uplink resource within the selection threshold time. The synchronization signal block and corresponding uplink resource satisfy one or more parameters or conditions. The UE may transmit a random access preamble on the corresponding uplink resource.

公开(公告)号：US20200186211A1

公开(公告)日：2020-06-11

申请号：US16794120

申请日：2020-02-18

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Bilal SADIQ ,  Tao LUO ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04B7/0417 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0452 ,  H01Q1/24 ,  H04B7/0404 ,  H04B7/0426 ,  H04W16/28 ,  H04W28/02 ,  H04W40/08 ,  H04W52/14

Abstract: A UE may select a first beam for communication with a base station. The UE may attempt, through the selected first beam, at least one RACH procedure with the base station. The UE may determine that the at least one RACH procedure failed with the base station. The UE may send, after a successful RACH procedure with the base station, information indicating that the at least one RACH procedure failed. In an aspect, the UE may select a new beam for communication with the base station after the determination that the at least one RACH procedure failed, and at least a portion of the successful RACH procedure may be performed through the selected new beam.

公开(公告)号：US20200076659A1

公开(公告)日：2020-03-05

申请号：US16677389

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Muhammad Nazmul ISLAM ,  Bilal SADIQ ,  Peter GAAL ,  Haitong SUN

IPC: H04L27/26 ,  H04J11/00 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for generating and communicating reference signals. Certain aspects provide a method for communicating reference signals. The method includes selecting a demodulation reference sequence (DMRS) of a plurality of DMRSs for transmission in a synchronization signal block (SSB) based on a half-frame in which the SSB is transmitted. The method further includes transmitting the selected DMRS in the SSB.

公开(公告)号：US20200059926A1

公开(公告)日：2020-02-20

申请号：US16664708

申请日：2019-10-25

Applicant: QUALCOMM Incorporated

Inventor： Jing JIANG ,  Muhammad Nazmul ISLAM ,  Wei ZENG ,  Sundar SUBRAMANIAN ,  Joseph Binamira SORIAGA ,  Juergen CEZANNE ,  Tingfang JI ,  Bilal SADIQ ,  Junyi LI

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04L5/00 ,  H04W72/00 ,  H04L5/14

Abstract: Methods and apparatuses for wireless communication are provided. A transmitting apparatus receives an indication to use multiple subframes to send uplink control information, codes the uplink control information over the multiple subframes based on the indication, and sends the coded uplink control information via the multiple subframes. Sending the coded uplink control information includes transmitting acknowledgement information (ACK) of a current downlink-centric self-contained subframe in an uplink acknowledgement portion of the current downlink-centric self-contained subframe, bundling ACK bits of multiple downlink-centric self-contained subframes and encoding the bundled ACK bits to generate parity acknowledgement bits associated with systematic acknowledgement bits, transmitting the systematic acknowledgement bits in each uplink acknowledgement portion of the multiple downlink-centric self-contained subframes, and transmitting the parity acknowledgement bits associated with the acknowledgement information bits of the multiple downlink-centric self-contained subframes in an uplink-centric self-contained subframe that is sequentially subsequent to the multiple downlink-centric self-contained subframes.

公开(公告)号：US20200052765A1

公开(公告)日：2020-02-13

申请号：US16657960

申请日：2019-10-18

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Tao LUO ,  Juergen CEZANNE ,  Sundar SUBRAMANIAN ,  Ashwin SAMPATH ,  Bilal SADIQ ,  Junyi LI

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: A first apparatus may send, to a base station in a first carrier frequency, a request associated with determination of a first beam used for communication between the base station and the UE. The first apparatus may communicate with the base station in a second carrier frequency based on the request associated with the determination of the first beam, the first carrier frequency being different from the second carrier frequency. A second apparatus may receive, from a base station in a first carrier frequency, a message associated with determination of a first beam used for communication between the base station and the UE. The second apparatus may communicate with the base station in a second carrier frequency based on the message associated with the determination of the first beam, the first carrier frequency being different from the second carrier frequency.