公开(公告)号：US10432284B2

公开(公告)日：2019-10-01

申请号：US16242520

申请日：2019-01-08

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Junyi Li ,  Assaf Touboul

IPC: G06F1/20 ,  H04B7/06 ,  H04W72/14 ,  H04W72/04 ,  H04W88/02

Abstract: Systems and methods herein remedy thermal constraints experienced by wireless communication systems operating in the millimeter wave spectrum. User equipment (UE) having a plurality of antenna subarrays controlled by respective RFICs monitor temperature gradients of respective sectors of the UE. Upon the thermal gradient of a sector reaching a temperature threshold, the UE performs thermal management steps to prevent hardware of a respective sector from damage due to overshoot.

公开(公告)号：US10425779B2

公开(公告)日：2019-09-24

申请号：US15675366

申请日：2017-08-11

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta

IPC: H04W4/12 ,  H04W76/14 ,  H04W74/08 ,  H04W52/38 ,  H04W52/32 ,  H04L29/08 ,  H04W52/28 ,  H04W52/26 ,  H04W52/24 ,  H04W52/22 ,  H04W52/16 ,  H04L25/02 ,  H04W92/18 ,  H04W52/50

Abstract: Methods, systems, and devices for wireless communication are described. A first UE and a second UE may coordinate to establish a sidelink connection. The first UE may identify data to transmit to the second UE, and the first UE may transmit a request to send (RTS) message to the second UE with a first transmit power. The first UE may then determine to refrain from using the first transmit power for the data transmission, and the first UE may transmit the data to the second UE with a second transmit power that is different from the first transmit power. The UE may determine the second transmit power for the data transmission based on instantaneous channel quality information (CQI) received in a clear to send (CTS) message, a modulation and coding scheme (MCS) selected for the data transmission, a threshold power, etc.

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：US10404433B2

公开(公告)日：2019-09-03

申请号：US15826612

申请日：2017-11-29

Applicant: QUALCOMM Incorporated

Inventor： Juergen Cezanne ,  Vasanthan Raghavan ,  Bilal Sadiq ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/0408

Abstract: Techniques are described for wireless communication. A method of wireless communication at a first wireless device includes identifying a template mapping of a plurality of ports to a first plurality of frequency subcarriers and a first plurality of time periods of a template time-frequency resource grid; mapping a plurality of resource elements of an orthogonal frequency-division multiplexing (OFDM) time-frequency resource grid to the plurality of ports based at least in part on the template mapping; receiving a reference signal from a second wireless device, on a subset of the plurality of ports, based at least in part on the mapping; and decoding the reference signal from a subset of the plurality of resource elements based at least in part on the mapping. In some cases, each port of the plurality of ports is associated with a corresponding radio frequency (RF) chain.

公开(公告)号：US20190268918A1

公开(公告)日：2019-08-29

申请号：US16281380

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Zhibin Wu ,  Hong Cheng ,  Kapil Gulati ,  Junyi Li ,  Michaela Vanderveen

IPC: H04W72/12 ,  H04W4/40 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a method includes receiving broadcast information from a base station that identifies types of resources for vehicle-based sidelink communications that are supported by the base station and transmitting a request to the base station for resource scheduling information to perform a vehicle-based sidelink communication based on the broadcast information. In some cases, the request includes an indication of a type of resources for the vehicle-based sidelink communication supported by the base station and a quality of service (QoS) metric associated with the vehicle-based sidelink communication. In some cases, the method further includes receiving, in response to the request, a response from the base station that comprises the resource scheduling information to perform the vehicle-based sidelink communication.

公开(公告)号：US10396962B2

公开(公告)日：2019-08-27

申请号：US15703867

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Hao Xu ,  Jing Jiang

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04L1/18

Abstract: An apparatus may configure x subframes with a subslot configuration that includes y subslots, y being greater than x. In an aspect, each subslot of the y subslots may include a first portion having one or more symbols for carrying at least one of data or control information, a second portion having a gap, and a third portion for carrying ACK/NACK information associated with the first portion. In an aspect, the second portion may be between the first portion and the third portion. In an aspect, the second portion and the third portion may include at most one symbol. The apparatus may send information indicating the subslot configuration to at least one neighboring base station. The apparatus may communicate content with a user equipment (UE) during at least one of the y subslots.

公开(公告)号：US20190254062A1

公开(公告)日：2019-08-15

申请号：US16270542

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Sudhir Kumar Baghel ,  Hong Cheng ,  Michaela Vanderveen ,  Junyi Li ,  Kapil Gulati

IPC: H04W72/14 ,  H04W4/46 ,  H04L5/00 ,  H04W76/14 ,  H04W76/15 ,  H04W72/12

CPC classification number: H04W72/14 ,  H04L5/001 ,  H04W4/46 ,  H04W72/1284 ,  H04W76/14 ,  H04W76/15

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that a profile for vehicle-based sidelink communications supports packet duplication using a set of carrier frequencies. The UE may transmit a message to a base station that identifies the profile and the set of carrier frequencies. The UE may receive a configuration message from the base station that identifies a packet duplication configuration. The UE may transmit, based on the packet duplication configuration, a request to the base station for resources to perform the vehicle-based sidelink communications, the request comprising one or more buffer status report (BSRs), wherein each BSR identifies a carrier frequency for the BSR and a logical channel group identifier that identifies the BSR as being for packet duplication.

公开(公告)号：US20190254057A1

公开(公告)日：2019-08-15

申请号：US16272647

申请日：2019-02-11

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Junyi Li ,  Rajat Prakash ,  Peerapol Tinnakornsrisuphap ,  Satashu Goel

IPC: H04W72/12 ,  H04W56/00 ,  H04J3/06 ,  H04L12/835 ,  H04L12/851 ,  H04W28/02

CPC classification number: H04W72/1289 ,  H04J3/0635 ,  H04L47/24 ,  H04L47/30 ,  H04W28/0278 ,  H04W56/001 ,  H04W72/1242

Abstract: Apparatus and methods of wireless communications include, at a receiving node, receiving timing information corresponding to a traffic class identifier. The timing information being associated with a time interval for communicating data of a traffic class corresponding to the traffic class identifier. Aspects include receiving traffic data pertaining to the traffic class, determining that the traffic data was transmitted or is received outside the time interval, and then buffering the traffic data. Additionally, aspects include forwarding the traffic data in response to a next occurrence of the time interval. A transmitting node may be configured with complimentary functions.

公开(公告)号：US20190253866A1

公开(公告)日：2019-08-15

申请号：US16239383

申请日：2019-01-03

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Zhibin Wu ,  Junyi Li ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Libin Jiang

IPC: H04W8/00 ,  H04L27/26 ,  H04W72/00 ,  H04L5/00

CPC classification number: H04W8/005 ,  H04L5/0037 ,  H04L5/0069 ,  H04L27/2607 ,  H04W72/005

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may broadcast a discovery preamble to identify a receiving device or to identify a suitable beam for communicating with a receiving device prior to broadcasting a discovery message to the receiving device. In such systems, the wireless device may use the techniques described herein to generate the discovery preamble and to reduce interference between discovery preamble transmissions and avoid data loss. In one example, a wireless device may append a cyclic prefix (CP) to a discovery preamble with a suitable length to protect the discovery preamble from interference from another transmission. In another example, the wireless device may generate a cyclically periodic signal including multiple copies of the discovery preamble so a receiving device may be able to receive a portion of the signal and identify the discovery preamble.

公开(公告)号：US10367616B2

公开(公告)日：2019-07-30

申请号：US15357812

申请日：2016-11-21

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tao Luo ,  Juergen Cezanne ,  Bilal Sadiq ,  Junyi Li

IPC: H04L5/00 ,  H04W52/36 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a sounding reference signal (SRS) configuration for user equipment (UE). The base station may transmit an SRS grant message to a UE indicating the SRS configuration. An indication of SRS parameters may be included in the SRS grant message, and may include the SRS parameters or a location of the SRS parameters. That is, SRS parameters may be transmitted in a control channel with the SRS grant message or may be separately sent in a data channel as indicated by the indication of SRS parameters. In some cases, SRS parameters may be determined based on previously received UE feedback regarding channel conditions or power limitations. Alternatively, the base station may make its own environment measurements or assign SRS parameters autonomously. The UE may signal SRS transmissions to the base station according to the SRS grant message.