公开(公告)号：US20210111902A1

公开(公告)日：2021-04-15

申请号：US17066014

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

Inventor： Soo Bum Lee ,  Gavin Bernard Horn ,  Ravi Agarwal

IPC: H04L9/32 ,  H04W48/10 ,  H04W8/08 ,  H04L9/30

Abstract: Methods, systems, and devices for wireless communications are described. Private keys may be maintained upstream in a network at a more secure location. For example, when a signature is needed, a base station may transmit a signing request to a signing function within the core network and may transmit system information (SI) to be protected. The signing function may use a private key to generate a signature for the SI and returns the signature to the base station. The base station may transmit the SI and the signature to user equipment (UEs) within a coverage area of the base station. The UEs may obtain a public key corresponding to the private key and may use the public key to verify that the signature for the SI is valid and from the base station. The public key, and hence the signature, may correspond to a particular tracking area.

公开(公告)号：US10798627B2

公开(公告)日：2020-10-06

申请号：US15258555

申请日：2016-09-07

Applicant: QUALCOMM Incorporated

Inventor： Saurabha Rangrao Tavildar ,  Tingfang Ji ,  Gavin Bernard Horn ,  Keiichi Kubota ,  Ravi Agarwal

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/30

Abstract: Aspects of the present disclosure provide methods and apparatus for transmitting an uplink reference signal, receiving a keep alive (KA) command based, at least in part, on the uplink reference signal, and taking one or more actions to perform a handover to a non-serving base station (BS) in accordance with the KA command. Additionally, aspects provide methods and apparatus for receiving an uplink reference signal from a user equipment (UE), measuring the uplink reference signal, and transmitting a KA command to the UE based, at least in part, on the measured uplink reference signal. The KA command may be scrambled by an identifier associated with the UE. Additionally or alternatively, a cyclic prefix (CP) of the uplink reference signal may be longer than a CP of another type of reference signal.

公开(公告)号：US10524206B2

公开(公告)日：2019-12-31

申请号：US15188720

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn ,  Peter Pui Lok Ang

IPC: H04W52/02 ,  H04W76/28 ,  H04W72/04 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a downlink (DL) reception indication during an active duration of a discontinuous reception (DRX) configuration. The DL reception indication may indicate the presence of a reception opportunity following an inactivity interval, as well as the length of the inactivity interval. The wireless device may refrain from DL monitoring during the inactivity interval. In some cases, the wireless device may enter a sleep mode during the inactivity interval and wake up to receive a subsequent transmission during the reception opportunity. In some examples, the wireless device may use the inactivity interval to communicate using a different radio access technology (RAT).

公开(公告)号：US10484999B2

公开(公告)日：2019-11-19

申请号：US15661228

申请日：2017-07-27

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn ,  Keiichi Kubota ,  Haitong Sun ,  Tingfang Ji ,  Kambiz Azarian Yazdi

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W68/02

Abstract: Certain aspects of the present disclosure provide triggers for user equipment (UE) transmissions to support uplink based mobility in a wireless communication system. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving a configuration indicating one or more triggers for transmitting on an uplink access channel, wherein the one or more triggers comprise a first indication of mobility of the UE, determining, based at least in part on detection of one of the one or more triggers, to transmit on the uplink access channel, transmitting a signal on the uplink access channel, and receiving, in response to the transmission of the signal on the uplink access channel, a second indication of at least one of: confirmation of reception of the signal or a paging notification.

公开(公告)号：US10412014B2

公开(公告)日：2019-09-10

申请号：US15218701

申请日：2016-07-25

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Chetan Chakravarthy ,  Sharad Sambhwani ,  Sivaram Srivenkata Palakodety ,  Juha Mikko Sirkka

IPC: H04L12/859 ,  H04L12/26 ,  H04L29/06 ,  H04W76/27

Abstract: The disclosure provides for a user equipment (UE) detecting an indication of an application-specific latency reduction triggering condition that may trigger switching of a communication state of the UE. For example, the UE may be in an initial state. The UE may transition into a different state that is associated with lower latency for data transfer. In an aspect, the UE may trigger the indication for latency reduction even when the network-configured criteria for the indication has not yet been met. The UE may trigger an application-specific latency reduction triggering condition during the startup of an application, which triggers a resource request message even before the network-configured threshold value for generating such resource request messages is satisfied. The resource request message may cause the network to command the UE to transition to a state that has a latency less than that in the current state.

公开(公告)号：US10349466B2

公开(公告)日：2019-07-09

申请号：US15188798

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn

IPC: H04W52/02 ,  H04W72/10 ,  H04W76/28 ,  H04W80/08

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive data during an active duration of a discontinuous reception (DRX) configuration. The wireless device may be configured such that it identifies a transmission opportunity following the reception opportunity, so that it may transmit a response to the received data during the transmission opportunity. In another example, the wireless device may transmit data during an active duration of a discontinuous transmission (DTX) configuration. The device may be configured such that it identifies a reception opportunity following the DTX active duration, so that a response may be received during the reception opportunity. The presence of a transmission opportunity following a DRX active duration, or a reception opportunity following a DTX active duration may depend on the service type and priority of the data being communicated, and may be either semi-statically configured or dynamically signaled.

公开(公告)号：US20180279181A1

公开(公告)日：2018-09-27

申请号：US15926436

申请日：2018-03-20

Applicant: QUALCOMM Incorporated

Inventor： Karl Georg Hampel ,  Sumeeth Nagaraja ,  Ravi Agarwal ,  Bilal Sadiq ,  Tao Luo

IPC: H04W36/00 ,  H04W72/04 ,  H04B7/06 ,  H04W36/30 ,  H04W36/06 ,  H04W36/36

CPC classification number: H04W36/0033 ,  H04B7/0617 ,  H04B7/0695 ,  H04W16/28 ,  H04W36/0072 ,  H04W36/0077 ,  H04W36/06 ,  H04W36/30 ,  H04W36/36 ,  H04W72/046

Abstract: Methods, systems, and devices for wireless communication are described for a beam-aware handover procedure for multi-beam access systems. A source base station may determine that a handover request is to be sent to a target base station in preparation for handover of a user equipment (UE) from the source base station to the target base station, and transmit the handover request to the target base station with an indication of whether the handover is to be delayed. Alternatively or in addition to, either the target base station or the source base station may generate and transmit a time expiration indicator. The indication of whether the handover is to be delayed or the time expiration indicator may allow either the target base station or the UE to determine whether access parameters for the UE are valid.

公开(公告)号：US09872252B1

公开(公告)日：2018-01-16

申请号：US15459758

申请日：2017-03-15

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Amir Aminzadeh Gohari ,  Alexei Yurievitch Gorokhov ,  Raghu Narayan Challa ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Ravi Agarwal ,  Joseph Binamira Soriaga ,  Hao Xu

IPC: G08C17/00 ,  H04W52/02 ,  H04W76/04 ,  H04W72/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/0406 ,  H04W76/28 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00

Abstract: Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.

公开(公告)号：US20170171908A1

公开(公告)日：2017-06-15

申请号：US15188854

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn

IPC: H04W76/04 ,  H04W72/14

CPC classification number: H04W72/14 ,  H04W52/0216 ,  H04W72/1278 ,  H04W76/28 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive during an active duration, an indication of an opportunity to request uplink (UL) transmission. The wireless device may identify an opportunity to request UL transmission based at least in part on the indication. In some cases, the active duration may be a discontinuous transmission (DTX) configuration. The wireless device may then transmit on the UL resources during the opportunity to request UL transmission.

公开(公告)号：US20170171907A1

公开(公告)日：2017-06-15

申请号：US15188798

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Ravi Agarwal ,  Gavin Bernard Horn

IPC: H04W76/04 ,  H04W72/10 ,  H04W80/08

CPC classification number: H04W80/08 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/10 ,  H04W76/28 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/25

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive data during an active duration of a discontinuous reception (DRX) configuration. The wireless device may be configured such that it identifies a transmission opportunity following the reception opportunity, so that it may transmit a response to the received data during the transmission opportunity. In another example, the wireless device may transmit data during an active duration of a discontinuous transmission (DTX) configuration. The device may be configured such that it identifies a reception opportunity following the DTX active duration, so that a response may be received during the reception opportunity. The presence of a transmission opportunity following a DRX active duration, or a reception opportunity following a DTX active duration may depend on the service type and priority of the data being communicated, and may be either semi-statically configured or dynamically signaled.