公开(公告)号：US11082920B2

公开(公告)日：2021-08-03

申请号：US16509198

申请日：2019-07-11

Applicant: QUALCOMM Incorporated

Inventor： Chinmay Shankar Vaze ,  Arvind Vardarajan Santhanam ,  Yongle Wu ,  Raghu Narayan Challa

IPC: H04W52/02 ,  H04W36/00 ,  H04W48/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of base stations that are part of a synchronization group, where at least two of the base stations in the set of base stations operate on different frequencies. In some cases, the UE may identify the set of base stations based on an indication transmitted by a serving base station for the UE. Additionally, once the synchronization group is identified, the UE may schedule synchronization signals together from the set of base stations. For example, after identifying the set of base stations, the UE may identify a measurement timing window associated with the synchronization group and measure a respective synchronization signal for each base station within the measurement timing window. Accordingly, the UE may then transmit a measurement report to the serving base station that includes the synchronization signal measurements.

公开(公告)号：US11070273B2

公开(公告)日：2021-07-20

申请号：US16908561

申请日：2020-06-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Junyi Li ,  Sundar Subramanian ,  Tao Luo ,  Raghu Narayan Challa ,  Ruhua He ,  Yong Li ,  Jun Zhu ,  Tianyang Bai

IPC: H04B7/06 ,  H04B17/327 ,  H04W72/08 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00 ,  H04B7/0452

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.

公开(公告)号：US20210159990A1

公开(公告)日：2021-05-27

申请号：US17077938

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： Arnaud Meylan ,  Leena Zacharias ,  Michel Evan Chauvin ,  Raghu Narayan Challa

IPC: H04B17/309 ,  G08B7/06

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications networks, a device, such as a user equipment (UE), may be configured to detect a signal blockage affecting one or more antennas of the UE. The signal blockage may be associated with the position of a body, such as a user, relative to the one or more antennas of the UE, which may include how a user places their hand on or near the device during use. The position of the body may block one or more of the antennas of the UE, causing increased signal attenuation and decreased communications performance. The UE may be configured to signal, an indication based on detecting the signal blockage.

公开(公告)号：US10966168B1

公开(公告)日：2021-03-30

申请号：US16694787

申请日：2019-11-25

Applicant: QUALCOMM Incorporated

Inventor： Parthasarathy Krishnamoorthy ,  Tao Luo ,  Raghu Narayan Challa ,  Chetan Chakravarthy ,  Krishna Rao Mandadapu ,  Vijay Marwah ,  Mueez Ahmad

IPC: H04W74/00 ,  H04W74/08 ,  H04W56/00 ,  H04W24/08 ,  H04B17/318 ,  H04W68/00 ,  H04W4/60

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a first set of synchronization signal blocks (SSBs) for a first subscription of the UE and a second set of SSBs for a second subscription of the UE; select a first SSB, from the first set of SSBs, for communications of the first subscription; identify a third set of SSBs by modifying the second set of SSBs to remove one or more SSBs from the second set of SSBs, at least one SSB of the one or more SSBs overlapping in time with the first SSB; select a second SSB from the third set of SSBs; and monitor the second SSB for paging messages of the second subscription. Numerous other aspects are provided.

公开(公告)号：US20210006986A1

公开(公告)日：2021-01-07

申请号：US16918475

申请日：2020-07-01

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Hongbo Yan ,  Raghu Narayan Challa

IPC: H04W16/28 ,  H04W24/10 ,  H04W56/00 ,  H04W72/04 ,  H04B17/318 ,  H04B17/336 ,  H04W72/00

Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. Aspects of the described techniques may include the user equipment measuring signal aspects for a plurality of respective receive beams for receiving communications associated with a synchronization signal block transmitted by a base station on a transmit beam. From the measured signal aspects, the UE may determine that a receive beam from the plurality of receive beams is a preferred beam for receipt of communications from the base station transmitted on the transmit beam. With the determined preferred beam, the UE may initiate a beam-sweeping procedure to re-measure the plurality of UE receive beams, where the UE measures the first UE receive beam before measuring others of the plurality of UE receive beams.

公开(公告)号：US20200187185A1

公开(公告)日：2020-06-11

申请号：US16702316

申请日：2019-12-03

Applicant: QUALCOMM Incorporated

Inventor： Jun Zhu ,  Yong Li ,  Raghu Narayan Challa ,  Andrea Garavaglia ,  Yongle Wu ,  Ting Kong ,  Alexei Yurievitch Gorokhov

IPC: H04W72/04 ,  H04J11/00 ,  H04W56/00 ,  H04B17/327

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use a measurement procedure for beam detection within an existing cell. The UE perform a search procedure for a first synchronization signal block (SSB) to detect a first beam of a base station. The UE may determine a first timing offset for the first SSB based on the search procedure. The UE may estimate a second timing offset for a second SSB from the base station based on the first timing offset. The UE may perform a measurement procedure for the second SSB to detect a second beam of the base station based on the second timing offset. The UE may prune fake beams based on synchronization signals used for the measurement procedure.

公开(公告)号：US20200068493A1

公开(公告)日：2020-02-27

申请号：US16157498

申请日：2018-10-11

Applicant: QUALCOMM Incorporated

Inventor： Ling Ding ,  Junsheng Han ,  Raghu Narayan Challa ,  Junyi Li

IPC: H04W52/14 ,  H04W52/36 ,  H04W52/32

Abstract: Method and apparatus are provided for reporting and receiving actual UL transmission power. In accordance with some implementation, a UE may send a first indication of power headroom to a base station. The UE may receive one or more resources allocation for a UL transmission. The UE then may determine actual transmission power to be used in the UL transmission. Upon determination, the UE may transmit the UL transmission and send an indication of the actual transmission power to the base station. The base station, in response to receiving an indication of actual transmission power of the first UL transmission, may adjust an estimate of the link quality based on the receive indication of actual transmission power.

公开(公告)号：US10420018B2

公开(公告)日：2019-09-17

申请号：US15684861

申请日：2017-08-23

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Jianghong Luo ,  Raghu Narayan Challa ,  Qijia Liu ,  Junyi Li ,  Alexei Yurievitch Gorokhov ,  Assaf Touboul

IPC: H04W48/16 ,  H04B7/0456 ,  H04B7/06 ,  H04W16/28

Abstract: A method, an apparatus, and a computer-readable medium may be described in the present disclosure. The apparatus may be a user equipment. The apparatus may determine whether a number of unsuccessful repetitions associated with performance of a first type of scanning exceeds a repetition threshold. The apparatus may perform a second type of beam scanning based on the determination that the number of unsuccessful repetitions exceeded the repetition threshold.

公开(公告)号：US10326509B2

公开(公告)日：2019-06-18

申请号：US15158190

申请日：2016-05-18

Applicant: QUALCOMM Incorporated

Inventor： Raghu Narayan Challa ,  Messay Amerga ,  Brian Clarke Banister ,  Alexei Yurievitch Gorokhov ,  Amir Aminzadeh Gohari

IPC: H04B7/06 ,  H04W8/24 ,  H04W52/42 ,  H04L1/08 ,  H04L5/00 ,  H04W52/28 ,  H04W88/06 ,  H04B7/0413 ,  H04B1/3827 ,  H04W84/04 ,  H04W4/70 ,  H04W28/18 ,  H04W72/04

Abstract: Aspects of the present disclosure provide apparatus and techniques that may be applied in systems that may help enable efficient communication between a base station (BS) and certain devices, such as wearable devices and/or machine type communication (MTC) user equipments (UEs), having a single receiver (RX) for long term evolution (LTE). An exemplary method, performed by a BS, generally includes receiving, from a UE, an indication of a category of the UE, wherein the category of the UE indicates at least one of: a maximum throughput supported by the UE or a number of layers supported by the UE; assuming a number of receivers at the UE based on the category of the UE; determining one or more transmit parameters based on the number of receivers of the UE; and communicating with the UE according to the one or more transmit parameters.

公开(公告)号：US09986473B2

公开(公告)日：2018-05-29

申请号：US14271152

申请日：2014-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yongle Wu ,  Shivratna Giri Srinivasan ,  Won-Joon Choi ,  Raghu Narayan Challa ,  Amir Aminzadeh Gohari ,  Mariam Motamed ,  Thomas James Christol ,  Amit Mahajan

IPC: H04W76/28 ,  H04W36/00

CPC classification number: H04W36/0083 ,  H04W76/28 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to methods and apparatus that utilize one or more user equipment (UE) panic states under connected discontinuous reception (C-DRX) mode in long term evolution (LTE).