公开(公告)号：US20190059056A1

公开(公告)日：2019-02-21

申请号：US16104014

申请日：2018-08-16

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Ashwin Sampath ,  Vasanthan Raghavan

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception (DRX) mode. The base station may transmit, based at least in part on the data being available, a first wakeup message using a first band supported by the UE. The base station may transmit, based at least in part on the data being available, a second wakeup message using a second band supported by the UE, the second band being different from the first band.

公开(公告)号：US20190053321A1

公开(公告)日：2019-02-14

申请号：US16058706

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Ashwin Sampath ,  Vasanthan Raghavan ,  Jianghong Luo ,  Sundar Subramanian ,  Sumeeth Nagaraja

IPC: H04W76/28 ,  H04L29/08 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may initiate a beam management procedure, including reference signal transmission to a user equipment (UE) and receive beam training. A base station may configure a UE to monitor a set of beams for reference signals. Based on the received reference signals, the UE may optionally select one or more transmit beams for wakeup signal reception, and may transmit an indication of the selected beams to the base station. The base station may transmit a wakeup signal over the originally configured or the UE-selected transmit beams to initiate wake-up procedure at the UE. The base station and UE may subsequently perform a refined beam management procedure, providing a refined reference signal transmission from the base station. Based on the received transmission, the UE may select a refined beam for downlink transmissions.

公开(公告)号：US10097321B2

公开(公告)日：2018-10-09

申请号：US14273421

申请日：2014-05-08

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Junyi Li ,  Ashwin Sampath

IPC: H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives first information from a base station, determines, based on the first information, a position of resources for receiving a signal transmitted from a connection point, detects the signal via at least one beam receiving direction based on the resources, determines a beam transmitting direction of the connection point and a beam receiving direction of the UE based on the signal, identifies a beam receiving direction of the connection point based on the beam transmitting direction of the connection point, and provides the connection point with second information based on the beam receiving direction of the connection point, wherein the second information may comprise an intent to establish a millimeter-wave (mmW) link with the connection point, the beam receiving direction of the UE, and/or the beam transmitting direction of the connection point.

公开(公告)号：US10039076B2

公开(公告)日：2018-07-31

申请号：US15443449

申请日：2017-02-27

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tingfang Ji ,  Yu Zhang ,  Navid Abedini ,  Bilal Sadiq ,  Ashwin Sampath

IPC: H04W64/00 ,  H04W72/04 ,  H04W88/08 ,  H04W88/02 ,  H04B7/024 ,  H04L5/00

CPC classification number: H04W64/006 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/063 ,  H04L5/0035 ,  H04L5/0091 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/02 ,  H04W88/08

Abstract: Antenna ports on wireless devices may be QCL. QCL antenna ports may be useful in improving channel statistics related to the antenna ports. UEs and base stations may be able to determine candidate QCL ports, transmit information identifying the candidate QCL ports, and receive feedback indicating whether the candidate QCL ports are QCL at the receiving device such as a UE or a base station.

公开(公告)号：US20180139036A1

公开(公告)日：2018-05-17

申请号：US15713225

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Juergen Cezanne ,  Sundar Subramanian ,  Bilal Sadiq ,  Ashwin Sampath ,  Junyi Li

IPC: H04L7/04 ,  H04W56/00 ,  H04W52/36 ,  H04J1/02

CPC classification number: H04L7/041 ,  H04J1/02 ,  H04L5/001 ,  H04L5/0048 ,  H04L27/2614 ,  H04L27/2621 ,  H04W52/36 ,  H04W56/001 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Methods, systems, and devices for wireless communication are described. Synchronization signals may be transmitted using a set of phase offsets over different component carriers or using a single component carrier for each antenna port. For example, a base station may identify a set of synchronization signals (e.g., a set of primary synchronization signals (PSSs)) to be transmitted over one or multiple component carriers. In some cases, each PSS may be associated with a different component carrier, and the base station may apply a different phase offset to each PSS when transmitting the set of PSSs on the component carriers. In some examples, the base station may transmit the PSSs on the component carriers using a different antenna port for each component carrier.

公开(公告)号：US09872296B2

公开(公告)日：2018-01-16

申请号：US14822681

申请日：2015-08-10

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W72/08 ,  H04B7/0456

CPC classification number: H04W72/0466 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0874 ,  H04W72/085

Abstract: Methods, systems, and devices are described for wireless communication at a user equipment (UE). A wireless communications system may improve UE discovery latency by dynamically selecting and switching beam forming codebooks at the millimeter wave base station and the wireless device. Selecting an optimal beam forming codebook may allow the wireless communication system to improve link margins between the base station without compromising resources. In some examples, a wireless device may determine whether the received signals from the millimeter wave base station satisfy established signal to noise (SNR) thresholds, and select an optimal beam codebook to establish communication. Additionally or alternately, the wireless device may further signal the selected beam codebook to the millimeter wave base station and direct the millimeter wave base station to adjust its codebook based on the selection.

公开(公告)号：US09854585B2

公开(公告)日：2017-12-26

申请号：US14952005

申请日：2015-11-25

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sundar Subramanian ,  Ashwin Sampath ,  Junyi Li

IPC: H04W74/00 ,  H04B1/10 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04W72/0486 ,  H04B1/10 ,  H04L1/0001 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/14 ,  H04W72/0413 ,  H04W72/046 ,  H04W74/006

Abstract: Methods, systems, and devices are describe for dynamic medium access control (MAC) algorithm selection in a wireless communication system. A device, e.g., a user equipment or base station, may identify a channel parameter associated with a first channel used for communications in the wireless communication system. The device may dynamically select, based at least in part on the channel parameter, a first MAC algorithm from a plurality of MAC algorithms available for communications using the first channel. The wireless communication system may be a millimeter wave wireless communication system and may, in some examples, use directional or beamformed transmissions.

公开(公告)号：US20170290042A1

公开(公告)日：2017-10-05

申请号：US15478933

申请日：2017-04-04

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Juergen Cezanne ,  Junyi Li ,  Ashwin Sampath ,  Tao Luo

IPC: H04W72/12 ,  H04L5/00 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04W72/1252 ,  H04B7/0695 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04W72/0413 ,  H04W72/1278 ,  H04W74/0833

Abstract: A UE may receive a reference signal or directional synchronization subframe from a base station and transmit a scheduling request to the base station using a resource based on the reference signal or directional synchronization subframe. The scheduling request may enable a base station to grant the UE resources to send a buffer status report (BSR). The resource may be associated with a random access channel (RACH) time period. The UE may also transmit a scheduling request within a frequency region of the RACH time period. The scheduling request may be transmitted based on a received indication of a set of subcarrier, a cyclic shift, or a sequence index. In some examples, the resources used by the UE to send the BSR may include physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) resources.

公开(公告)号：US20170279553A1

公开(公告)日：2017-09-28

申请号：US15270879

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Tao Luo ,  Juergen Cezanne ,  Navid Abedini ,  Krishna Kiran Mukkavilli ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Ashwin Sampath

IPC: H04J11/00 ,  H04W56/00

CPC classification number: H04J11/0073 ,  H04J11/0069 ,  H04L25/03866 ,  H04L27/261 ,  H04L27/2675 ,  H04W56/001

Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.

公开(公告)号：US20170055281A1

公开(公告)日：2017-02-23

申请号：US14964101

申请日：2015-12-09

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Sundar Subramanian ,  Jung Ho Ryu ,  Ashwin Sampath ,  Junyi Li

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1284 ,  H04B7/0617 ,  H04L5/0016 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/121 ,  H04W72/1231 ,  H04W72/1289

Abstract: A base station may transmit scheduling information comprising one or more first downlink messages to a first user equipment (UE) in a first beam. The base station may transmit one or more second downlink messages to a second UE in a second beam. In response to the transmission of the one or more first downlink messages, the base station may receive one or more first uplink control messages from the first UE in a time slot. In response to the transmission of the one or more second downlink messages, the base station may receive one or more second uplink control messages from the second UE in the same time slot. The one or more second uplink control messages may be frequency-orthogonal or spreading code-orthogonal to the one or more first uplink control messages.

Abstract translation: 基站可以在第一波束中向第一用户设备（UE）发送包括一个或多个第一下行链路消息的调度信息。 基站可以在第二波束中向第二UE发送一个或多个第二下行链路消息。 响应于一个或多个第一下行链路消息的传输，基站可以在时隙中从第一UE接收一个或多个第一上行链路控制消息。 响应于一个或多个第二下行链路消息的传输，基站可以在相同的时隙中从第二UE接收一个或多个第二上行链路控制消息。 一个或多个第二上行链路控制消息可以是与一个或多个第一上行链路控制消息正交的频率正交或扩展码。