公开(公告)号：US20190141754A1

公开(公告)日：2019-05-09

申请号：US16177055

申请日：2018-10-31

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Navid ABEDINI ,  Juergen CEZANNE ,  Muhammad Nazmul ISLAM ,  Junyi LI

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

Abstract: Aspects of the present disclosure provide for random access channel (RACH) configuration in wireless communication systems. In some examples, a RACH configuration may be selected for use by a scheduled entity in transmitting a RACH signal to a scheduling entity based on an estimated timing advance value. The RACH configuration may include, for example, a transmission time of the RACH signal and/or a RACH waveform configuration identifying at least a cyclic prefix (CP) length and a guard time (GT) for the RACH signal. In some examples, the CP and GT length may each be set to the difference between an estimated maximum round-trip time (RTT) and an estimated minimum RTT between the scheduled entity and the scheduling entity. In some examples, the timing advance value may be estimated as the estimated minimum RTT.

公开(公告)号：US20190132847A1

公开(公告)日：2019-05-02

申请号：US16149994

申请日：2018-10-02

Applicant: QUALCOMM Incorporated

Inventor： Navid ABEDINI ,  Junyi LI ,  Karl Georg HAMPEL

IPC: H04W72/04

CPC classification number: H04W72/0473 ,  H04B7/0456 ,  H04B7/0617 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0048 ,  H04W52/28 ,  H04W52/38 ,  H04W52/383 ,  H04W52/386 ,  H04W56/00 ,  H04W72/10 ,  H04W72/1242

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a control node may determine at least one of a transmission power or a reception power for at least one of a first signal or a second signal to be communicated between a target wireless node and at least one other wireless node based at least in part on a priority level of the first signal relative to the second signal, wherein the transmission power or the reception power is based at least in part on at least one of an identity or state of the target wireless node or the at least one other wireless node, or a type of the first signal or the second signal; and configure the transmission power or the reception power to be used for the first signal or the second signal. Numerous other aspects are provided.

公开(公告)号：US20190109749A1

公开(公告)日：2019-04-11

申请号：US15975112

申请日：2018-05-09

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Juergen CEZANNE ,  Sundar SUBRAMANIAN ,  Junyi LI

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/18

Abstract: At a receiver, errors may occur in estimating phase trajectory based on PT-RS due to a window effect. In order to address the problem of such errors, a transmitter determines at least one location for inserting PT-RS samples into a sequence of a plurality of samples, wherein a first set of the samples comprises a first number of samples at a beginning of the sequence and/or a second number of samples at an end of the sequence, and wherein the at least one location for the PT-RS samples is within a second set of the plurality of samples. The apparatus inserts the PT-RS samples into the sequence based on the determined at least one location and transmits a signal based on the inserted PT-RS samples. A receiver extracts the PT-RS samples and estimates phase errors for data samples in the received transmission based on the extracted PT-RS samples.

公开(公告)号：US20190053301A1

公开(公告)日：2019-02-14

申请号：US16055878

申请日：2018-08-06

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg HAMPEL ,  Hong CHENG ,  Junyi LI ,  Navid ABEDINI ,  Sundar SUBRAMANIAN ,  Muhammad Nazmul ISLAM

IPC: H04W76/12 ,  H04W80/02 ,  H04W76/27

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for communicating remote and local data in a wireless fronthaul of a wireless communication system. The method includes terminating a lower portion of a radio bearer for the UE, wherein the radio bearer comprises an upper portion and a lower portion. The method further includes forwarding the upper portion of the radio bearer for the UE to a network node over a wireless link. The method further includes carrying a lower portion of a second radio bearer with the BS and a multiplexing layer indicating whether the lower portion of the second radio bearer includes an upper portion of the second radio bearer corresponding to local data or a tunnel with the upper portion of the radio bearer for the UE corresponding to remote data.

公开(公告)号：US20180368086A1

公开(公告)日：2018-12-20

申请号：US15961183

申请日：2018-04-24

Applicant: QUALCOMM Incorporated

Inventor： Tianyang BAI ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Sundar SUBRAMANIAN ,  Ruhua HE ,  Raghu Narayan CHALLA ,  Alexei Yurievitch GOROKHOV ,  Junyi LI

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

Abstract: A UE may identify a first indication associated with a first signaling to be received in a time interval and identify a second indication associated with a second signaling to be received in the time interval. The UE may select to receive and receive, in the time interval, at least one of the first signaling or the second signaling based on at least one of the first or second indications. One or more of the first and second indications may be received from a BS or determined by the UE via predefined or other means. A BS may convey indications of the first and/or second signaling. The first and second indications may be transmitted sufficiently before the signaling in an effort to allow the UE to select and tune its receiver beam in the direction of the signaling to be received.

公开(公告)号：US20180324743A1

公开(公告)日：2018-11-08

申请号：US15925020

申请日：2018-03-19

Applicant: QUALCOMM Incorporated

Inventor： Junyi LI ,  Ashwin SAMPATH ,  Ozge KOYMEN

IPC: H04W64/00 ,  H04B7/06

CPC classification number: H04W64/006 ,  H04B7/022 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0695 ,  H04B7/0834 ,  H04B7/088 ,  H04W16/28

Abstract: A wireless device of the present disclosure may be able to reduce the time needed to determine a subarray and/or beamforming direction used for mmW communication. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. In one aspect, the apparatus may maintain first information associated with a correlation between each of a plurality of wireless device positions and wireless device orientations and a plurality of nodes, at least one subarray, and a corresponding beamforming direction. In another aspect, the apparatus may transmit the first information associated with the correlation to a plurality of nodes.

公开(公告)号：US20180317214A1

公开(公告)日：2018-11-01

申请号：US15965351

申请日：2018-04-27

Applicant: QUALCOMM Incorporated

Inventor： Ling DING ,  Jianghong LUO ,  Raghu Narayan CHALLA ,  Gideon Shlomo KUTZ ,  Vasanthan RAGHAVAN ,  Assaf TOUBOUL ,  Junyi LI

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

Abstract: Certain aspects of the present disclosure provide techniques for beam refinement. The techniques presented herein may allow for beam refinement using an existing frame structure and utilizing resources (receive antenna ports) that may otherwise be idle.

公开(公告)号：US20180270816A1

公开(公告)日：2018-09-20

申请号：US15921148

申请日：2018-03-14

Applicant: QUALCOMM Incorporated

Inventor： Chong LI ,  Jing JIANG ,  Junyi LI ,  Karl Georg HAMPEL

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/0446 ,  H04B7/2656 ,  H04W72/005 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/1273

Abstract: Aspects of the present disclosure describe receiving control data for a slot of a first wireless service, where the control data indicates one or more partial slots of the slot that are intended for communications of the first wireless service. An indicator indicating whether data of the first wireless service is transmitted over at least one of the one or more partial slots can be received at a different time than the control data. The data of the first wireless service over the at least one of the one or more partial slots can be decoded based at least in part on the indicator.

公开(公告)号：US20180217613A1

公开(公告)日：2018-08-02

申请号：US15671263

申请日：2017-08-08

Applicant: QUALCOMM INCORPORATED

Inventor： Libin JIANG ,  Shailesh PATIL ,  Jubin JOSE ,  Junyi LI

IPC: G05D1/02 ,  G01S19/42 ,  G08G1/16 ,  G01S19/41

CPC classification number: G05D1/0278 ,  G01S5/0072 ,  G01S5/0284 ,  G01S19/14 ,  G01S19/41 ,  G01S19/42 ,  G01S19/51 ,  G01S19/53 ,  G05D2201/0213 ,  G08G1/163

Abstract: A method for developing and reporting enhanced user equipment (UE) location information includes obtaining a global positioning system (GPS) location for a user equipment (UE), determining a location of at least one radio frequency (RF) antenna relative to the GPS location, developing a reference frame based at least in part on the location of the at least one RF antenna, determining a location of a structural element of the UE, and transmitting the GPS location, the location of the at least one RF antenna, and the location of the structural element of the UE.

公开(公告)号：US20180199332A1

公开(公告)日：2018-07-12

申请号：US15722261

申请日：2017-10-02

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul ISLAM ,  Junyi LI ,  Raghu CHALLA

IPC: H04W72/04 ,  H04W74/08 ,  H04W52/14

Abstract: In one aspect, a method, a computer-readable medium, and an apparatus for wireless communication are provided. The apparatus may be a base station. The apparatus may determine a duration of an uplink message that is to be sent from a UE. The apparatus may inform the UE regarding the duration of the uplink message through a random-access response message.