公开(公告)号：US20210051600A1

公开(公告)日：2021-02-18

申请号：US16990587

申请日：2020-08-11

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Piyush Gupta ,  Kapil Gulati ,  Junyi Li ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic

IPC: H04W52/24 ,  H04W24/10 ,  H04B17/318 ,  H04L5/00 ,  H04W52/10 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing and reporting reference signal received power (RSRP) measurements. In particular, the techniques described herein may allow a user equipment (UE) to efficiently identify reference signals on which to perform RSRP measurements (e.g., based on signaling from a base station), identify when to report RSRP measurements (e.g., aperiodically, periodically, or semi-persistently), and identify a channel on which to report RSRP measurements (e.g., a sidelink channel or an uplink channel). In addition, the techniques described herein may also allow a UE to efficiently identify open loop parameters to use to determine an appropriate transmit power for transmitting to another UE over a sidelink.

公开(公告)号：US20200154336A1

公开(公告)日：2020-05-14

申请号：US16676847

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Piyush Gupta ,  Luca Blessent ,  Tao Luo ,  Karl Georg Hampel ,  Navid Abedini ,  Jianghong Luo ,  Junyi Li

IPC: H04W40/12 ,  H04W28/02 ,  H04W28/08 ,  H04W24/10 ,  H04B17/336 ,  H04B17/318 ,  H04W80/02 ,  H04W88/14

Abstract: Methods, systems, and devices for wireless communications are described that support resource utilization based event triggering. A wireless node in a wireless communications system may establish a connection with a core network via a path that includes one or more relay nodes. The wireless node may determine that a network load associated with one or more paths between the wireless node and the core network has changed, or that a difference between two or more network loads of different paths has changed. Based on such a determination, the wireless node may transmit a report to the network. In some cases, the network may receive the report from the wireless node, and may initiate a path change based on the report.

公开(公告)号：US20200076657A1

公开(公告)日：2020-03-05

申请号：US16550925

申请日：2019-08-26

Applicant: QUALCOMM Incorporated

Inventor： Vinay Joseph ,  Piyush Gupta ,  Junyi Li

IPC: H04L27/26 ,  H04W72/04 ,  H04W28/02 ,  H04L12/24

Abstract: Methods, systems, and devices for wireless communications are described. Autonomous transmissions between a user equipment (UE) and a base station may be configured that include at least one of a modulation and coding scheme (MCS) or resources for the transmissions. In some cases, a trigger may be detected that changes the MCS or resources to be used for the autonomous transmissions. The trigger may include the presence or absence of retransmissions or the value of a channel measurement falling below or exceeding a threshold value. Accordingly, the base station and UE may adjust the MCS or resources to be used for the autonomous transmissions based on detecting the trigger and then communicate using the adjusted MCS or resources. In some cases, the configuration for the autonomous transmissions may be signaled via a medium access control (MAC) control element (CE).

公开(公告)号：US10567986B2

公开(公告)日：2020-02-18

申请号：US15449346

申请日：2017-03-03

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W24/08 ,  H04W48/16 ,  H04W56/00

Abstract: Aspects of the disclosure relate to back-off mechanisms for fair joint access of an unlicensed sidelink channel. Each sidelink device may perform independent and asynchronous listen before talk (LBT) of the unlicensed sidelink channel with a respective back-off timer initialized with a back-off value selected to provide fair access to the unlicensed sidelink channel by both active sidelink devices and other devices utilizing the unlicensed sidelink channel. In some examples, the back-off value may be selected based on an estimated number of active sidelink devices. The estimated number of active sidelink devices may be determined, for example, by monitoring distributed handshake signaling on the unlicensed sidelink channel.

公开(公告)号：US10383137B2

公开(公告)日：2019-08-13

申请号：US15411928

申请日：2017-01-20

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li ,  Peter Gaal

IPC: H04W72/12 ,  H04W76/00 ,  H04W76/14 ,  H04W72/04 ,  H04W72/14 ,  H04W84/18

Abstract: Aspects of the present disclosure provide methods and apparatuses that can provide sidelink grant information to out-of-coverage (OoC) sidelink devices. When one or more sidelink devices are out of a coverage area of a base station, an in-coverage device receiving sidelink grant information from the base station can retransmit, relay, or rebroadcast sidelink grant information to the OoC sidelink devices to enable sidelink communication with the OoC device or facilitate sidelink communication between OoC devices.

公开(公告)号：US10306660B2

公开(公告)日：2019-05-28

申请号：US15273387

申请日：2016-09-22

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04W88/06 ,  H04L12/64 ,  H04W88/02 ,  H04W88/08

Abstract: Wireless devices in a wireless network may use multiple communication modes to perform device-to-device (D2D) communication in a mesh wide area network (WAN). For instance, one communication mode may be contention-based, while the other communication mode may be scheduled (e.g., by a relay). To facilitate co-existence between these communication modes, a wireless device may identify a set of resources set aside for D2D communications and may select and reserve a transmission time interval (e.g., a slot) of the D2D resources. Other wireless devices may determine the transmission time interval is reserved and refrain from transmitting during that transmission time interval. In another example, a base station may assign a D2D communication mode to certain sets of D2D resources.

公开(公告)号：US20190141694A1

公开(公告)日：2019-05-09

申请号：US16014799

申请日：2018-06-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li ,  Hua Wang

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04W36/00

Abstract: Methods and apparatuses are provided which may be used in a base station and/or user equipment (UE) to support or otherwise provide device-to-device (D2D) communication in a shared radio frequency spectrum between candidate UEs. For example, a base station may determine that a first UE and a second UE are candidates for D2D communication, and provide and indicate that a Grant-free Uplink (GUL) resource allocation for D2D communication between the first and second UEs. The base station may further monitor the D2D communication.

公开(公告)号：US20190037022A1

公开(公告)日：2019-01-31

申请号：US16042434

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li

IPC: H04L29/08 ,  H04W72/04 ,  H04W4/70 ,  H04W88/04

CPC classification number: H04L67/12 ,  H04W4/70 ,  H04W72/0446 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/21 ,  Y02D70/22

Abstract: Wireless communication systems and methods related to the discovery and selection of relay devices by internet of everything (IoE) devices are disclosed. For example, IoE devices with low pathloss to a base station can broadcast information during discovery frames that allow other IoE devices to discover them and select them as a relay, if appropriate. The discovery broadcast message from an IoE device can include information to allow a listening IoE device to select a suitable IoE device for relaying its data that satisfies latency parameters while minimizing the energy impact of relaying. Signaling structures are also provided to allow different IoE devices to select slots for broadcasting within the discovery frame in a distributed manner without disrupting existing periodic broadcasts. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180070252A1

公开(公告)日：2018-03-08

申请号：US15449346

申请日：2017-03-03

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

IPC: H04W24/08 ,  H04W56/00 ,  H04W48/16

Abstract: Aspects of the disclosure relate to back-off mechanisms for fair joint access of an unlicensed sidelink channel. Each sidelink device may perform independent and asynchronous listen before talk (LBT) of the unlicensed sidelink channel with a respective back-off timer initialized with a back-off value selected to provide fair access to the unlicensed sidelink channel by both active sidelink devices and other devices utilizing the unlicensed sidelink channel. In some examples, the back-off value may be selected based on an estimated number of active sidelink devices. The estimated number of active sidelink devices may be determined, for example, by monitoring distributed handshake signaling on the unlicensed sidelink channel.

公开(公告)号：US20170150481A1

公开(公告)日：2017-05-25

申请号：US15192556

申请日：2016-06-24

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Saurabha Rangrao Tavildar

IPC: H04W72/04 ,  H04L1/18 ,  H04W28/02

Abstract: Methods, systems, and devices for wireless communication are described. The methods, systems, and devices may include receiving control information from a serving station, synchronizing with an end device based at least in part on the control information received from the serving station, and receiving an acknowledgement (ACK) from the end device in response to the synchronizing, the ACK indicating the end device is synchronized with the relay device. The methods, systems, and devices may also include receiving a data packet from the end device subsequent to the synchronizing, and transmitting, to the serving station, the data packet received from the end device, the transmitting based at least in part on the control information received from the serving station.