公开(公告)号：US10778306B2

公开(公告)日：2020-09-15

申请号：US16192020

申请日：2018-11-15

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Xiao Feng Wang ,  Juergen Cezanne ,  Bilal Sadiq ,  Muhammad Nazmul Islam ,  Junyi Li

IPC: H04B7/06 ,  H04B7/08 ,  H04W72/12 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described that provide for signaling and switching of beam pair links (BPLs) for directional transmission beams between a base station and a user equipment (UE). A threshold value may be determined, which corresponds to an amount of time for a UE to receive and decode control information, and apply a different BPL than a current BPL that that is in use. The UE may maintain a BPL for data, which is used during data transmission time intervals (TTIs) until an indication is received to change the BPL for data. The UE and the base station may determine to change between BPLs based at least in part on the threshold value and a scheduling offset between a control channel transmission that allocates resources for a data TTI and a start of the data TTI.

公开(公告)号：US10763984B2

公开(公告)日：2020-09-01

申请号：US16007704

申请日：2018-06-13

Applicant: QUALCOMM Incorporated

Inventor： Haitong Sun ,  Hung Ly ,  Tingfang Ji ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Tao Luo ,  Muhammad Nazmul Islam

IPC: H04J1/06 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W56/00 ,  H04B7/0413 ,  H04W74/08 ,  H04B7/26

Abstract: Aspects of the present disclosure relate to techniques for transmitting and processing synchronization signals (SS) for different purposes. In some cases, transmitting multiple SS blocks simultaneously using frequency division multiplexing (FDM), and possibly different beams, may allow a UE to reduce a measurement window.

公开(公告)号：US20200267773A1

公开(公告)日：2020-08-20

申请号：US16789418

申请日：2020-02-12

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Sony Akkarakaran

IPC: H04W74/08 ,  H04W80/02 ,  H04W72/04 ,  H04W76/27 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, via a control channel, an order message instructing the UE to perform a random access channel (RACH) procedure, and selecting to perform a first RACH procedure or a second RACH procedure based on a preamble preparation time gap between the order message and a first occasion for transmitting a RACH preamble, or a payload preparation time gap between the order message and an occasion for transmitting a RACH payload, or both.

公开(公告)号：US10750476B2

公开(公告)日：2020-08-18

申请号：US16027050

申请日：2018-07-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Navid Abedini ,  Sundar Subramanian

IPC: H04W72/04 ,  H04W36/00 ,  H04W56/00 ,  H04W74/08 ,  H04W48/12

Abstract: Certain aspects of the present disclosure provide techniques for use of SS transmitted using a UE-specific configuration of time-frequency resources. A BS may assign at least one UE-specific configuration, wherein the UE-specific configuration comprises an allocation of resources for a UE-specific SS for mobility management purposes. The BS may communicate with the UE based, at least in part, on the UE-specific configuration. A UE may correspondingly receive the UE-specific configuration and communicate with a BS based, at least in part, on the configuration.

公开(公告)号：US10742287B2

公开(公告)日：2020-08-11

申请号：US16189503

申请日：2018-11-13

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Navid Abedini ,  Junyi Li ,  Karl Georg Hampel ,  Juergen Cezanne ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Jianghong Luo

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04W64/00

Abstract: Methods, systems, and devices for updating beam-based communications are described. A base station may configure a user equipment (UE) with a set of beam management configurations, which may be used to modify (e.g., dynamically or periodically) beam-based communications. For example, the base station may indicate a beam configuration for utilization by the UE and the UE may switch to the indicated beam configuration or update a currently used beam configuration based on the indication. In another example, a set of beam configurations may be sequentially ordered, and the base station may indicate to the UE to use the next beam configuration in the sequence of beam configurations. The update to the beam configuration may be triggered based on a distance change (e.g., UE and base station getting closer or farther apart) or a reference signal measurement between the UE and the base station, among other factors.

公开(公告)号：US10728885B2

公开(公告)日：2020-07-28

申请号：US16141048

申请日：2018-09-25

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Peter Pui Lok Ang ,  Peter Gaal ,  Tao Luo ,  Heechoon Lee ,  Muhammad Nazmul Islam ,  Jing Sun

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/00 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive remaining minimum system information (RMSI) from a base station (BS); determine an initial active uplink bandwidth part based at least in part on the RMSI; and use the initial active uplink bandwidth part for a random access channel (RACH) procedure between the UE and the BS. Numerous other aspects are provided.

公开(公告)号：US20200236675A1

公开(公告)日：2020-07-23

申请号：US16840040

申请日：2020-04-03

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Sundar Subramanian ,  Navid Abedini ,  Junyi Li ,  Juergen Cezanne ,  Hung Dinh Ly ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W74/08 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for different tone spacing schemes for different channels. Methods, systems, and devices also provide for different tone spacing schemes for different stages of communication between a UE and a base station. The base station may indicate, to the UE, the tone spacing scheme in a control channel, a synchronization signal, or a reference signal and the tone spacing scheme may be selected by the base station from available tone spacing schemes for communication. Tone spacing schemes may also be referred to as numerologies.

公开(公告)号：US10721712B2

公开(公告)日：2020-07-21

申请号：US16242791

申请日：2019-01-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Bilal Sadiq ,  Tao Luo ,  Makesh Pravin John Wilson

IPC: H04W68/00 ,  H04W68/02 ,  H04W88/08 ,  H04L5/00 ,  H04W24/08 ,  H04W56/00 ,  H04W72/04 ,  H04W72/14 ,  H04W48/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, for a user equipment, a configuration for a monitoring occasion for paging within a paging occasion based at least in part on a user equipment index and a reference signal index. In some aspects, the base station may provide a paging signal in accordance with the configuration based at least in part on determining the configuration for the monitoring occasion for paging within the paging occasion. Numerous other aspects are provided.

公开(公告)号：US10708089B2

公开(公告)日：2020-07-07

申请号：US16192524

申请日：2018-11-15

Applicant: QUALCOMM Incorporated

Inventor： Juergen Cezanne ,  Ruhua He ,  Sundar Subramanian ,  Tao Luo ,  Muhammad Nazmul Islam ,  Junyi Li ,  Raghu Narayan Challa

IPC: H04L25/02 ,  H04B7/08 ,  H04B7/06 ,  H04B7/0456 ,  H04B17/27 ,  H04B17/309 ,  H04B17/382 ,  H04L1/00 ,  H04L5/00 ,  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：US10674542B2

公开(公告)日：2020-06-02

申请号：US15360181

申请日：2016-11-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Junyi Li ,  Sundar Subramanian ,  Juergen Cezanne ,  Navid Abedini ,  Tao Luo

IPC: H04L12/28 ,  H04W74/08 ,  H04W52/36 ,  H04W52/42 ,  H04B7/0408 ,  H04L5/00 ,  H04W24/10 ,  H04W52/18 ,  H04W56/00 ,  H04W52/24 ,  H04B7/08 ,  H04W72/04 ,  H04W52/00 ,  H04B7/02 ,  H04B1/04

Abstract: A mechanism is proposed to reduce overhead at the expense of increasing latency for UEs with weak link gain, while the latency for most UEs may remain the same. In one aspect of this disclosure, a UE may determine the number of attempts for transmitting a RACH signal based on one or more of path loss, the transmit power of the UE, the beam correspondence at the UE, or the power of signals received during the synchronization subframe. The UE may transmit the RACH signal in the determined number of attempts. In another aspect of the disclosure, a base station may combine signals of one or more RACH attempts to decode a RACH signal. The base station may inform a UE regarding the number of RACH subframes that the base station uses for decoding the RACH signal through a random access response message.