公开(公告)号：US20180049129A1

公开(公告)日：2018-02-15

申请号：US15389320

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

Inventor： Chong Li ,  Junyi Li ,  Piyush Gupta

IPC: H04W52/02 ,  H04W72/08

CPC classification number: H04W52/0235 ,  H04W52/243 ,  H04W52/245 ,  H04W52/246 ,  H04W52/265 ,  H04W52/281 ,  H04W52/325 ,  H04W52/383 ,  H04W72/08 ,  H04W74/002 ,  H04W74/0816 ,  H04W76/14 ,  H04W88/02 ,  H04W88/08 ,  H04W92/18 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26

Abstract: A first device may configure a second device, such as a sidelink receiver, so that an interference protection zone surrounding the second device may be dynamically adjusted in size based, for example, on various objectives and/or use cases recognized by the first device. The interference protection zone may be, for example, an area surrounding the second device, within which neighboring devices may be silenced. Changes to the interference protection zone may be achieved by providing a dynamic clear-to-send (CTS) transmit power scaling parameter, that is different from a pre-assigned constant parameter for CTS power control stored at the second device, to the second device from the first device. The second device may calculate CTS channel power using at least the dynamic CTS transmit power scaling parameter and the received RTS channel power. The second device may send a CTS message in a CTS channel at the calculated CTS channel power.

公开(公告)号：US20180035435A1

公开(公告)日：2018-02-01

申请号：US15411917

申请日：2017-01-20

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Junyi Li ,  Chong Li

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

CPC classification number: H04L5/0055 ,  H04L5/0023 ,  H04L5/0082 ,  H04L5/0092 ,  H04L5/14 ,  H04W72/1226

Abstract: Aspects of the present disclosure provide solutions that can mitigate interference between sidelinks. A user equipment (UE) can directly communicate with another device using a sidelink or sidelink channel without necessarily relying on a scheduling entity (e.g., a base station). The UE may transmit a direction selection signal (DSS) to another sidelink entity to indicate a requested duration of time to keep a first sidelink available for a plurality of transmission time intervals. The UE may perform various processes to mitigate interference between the first sidelink and a second sidelink established between other sidelink entities. To mitigate interference between sidelinks, for example, the UE may puncture its sidelink data during a time period that overlaps with a destination receive signal (DRS) of another sidelink. In another example, the UE may receive a retransmission of a DRS that may not be received due to sidelink interference.

公开(公告)号：US20180035427A1

公开(公告)日：2018-02-01

申请号：US15394074

申请日：2016-12-29

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Shrinivas Kudekar ,  Junyi Li

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1607 ,  H04L5/0055 ,  H04L5/0057 ,  H04W72/02 ,  H04W72/0413

Abstract: Aspects of the disclosure relate to a sidelink signal communication scheme that provides for rapid adaptation of the sidelink transmission based on feedback received during each transmission time interval (TTI). In this way, any lack of precision in interference measurements, or rapid changes in the amount of interference, which otherwise might cause a modulation and coding scheme (MCS) that was selected for the sidelink transmission to be unsuitable, may be adapted to improve the reliability of the transmission. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20170367108A1

公开(公告)日：2017-12-21

申请号：US15188016

申请日：2016-06-21

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/12 ,  H04W56/00 ,  H04W84/18

Abstract: A unified frame structure for communicating in a synchronous and slotted mesh network is provided. Nodes within the mesh network are designated as primary and secondary nodes. For each transmission, a primary node may first send scheduling information to secondary nodes associated with the primary node. The receiver of the scheduled link may send a clear-to-send signal. For uplink scheduled transmissions, the receiver is the primary node. For downlink scheduled transmissions, the receiver is a secondary node. The transmitter of the scheduled link may receive the CTS signal from one or more proximate receivers, including a receiver associated with the scheduled transmission as well as other receivers not associated with the scheduled transmission. The transmitter of the scheduled link may estimate the signal to interference-plus-noise ratio of other links that are of higher priority and may then determine whether to yield or power back off the scheduled transmission.

公开(公告)号：US09717110B1

公开(公告)日：2017-07-25

申请号：US15206031

申请日：2016-07-08

Applicant: QUALCOMM INCORPORATED

Inventor： Piyush Gupta ,  Junyi Li ,  Saurabha Tavildar

IPC: H04W28/02 ,  H04W52/02 ,  H04W76/02 ,  H04B3/36 ,  H04L12/751 ,  H04H20/38 ,  H04W72/04 ,  H04W4/00 ,  H04L12/933 ,  H04W88/02

CPC classification number: H04W76/025 ,  H04B3/36 ,  H04H20/38 ,  H04L45/026 ,  H04L49/1584 ,  H04W4/70 ,  H04W8/005 ,  H04W48/14 ,  H04W48/16 ,  H04W52/0274 ,  H04W72/0413 ,  H04W72/042 ,  H04W76/14 ,  H04W84/18 ,  H04W88/02 ,  H04W88/04 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/22 ,  Y02D70/26

Abstract: Systems and methods are disclosed for efficient signaling between devices. A leaf device initiates association with chirp signals to relay devices. Relay devices respond with keep alive signals. The leaf device selects a relay (from those that responded) and associates with it. Alternatively, selection of the relay may be offloaded to a base station. In another embodiment, an available relay device transmits a discovery broadcast to leaf devices. A leaf device responds with a chirp signal to the relay and association occurs. After association, the leaf device periodically sends a chirp signal and the relay responds with a keep alive signal. If either device fails to send its signal, link breakage is assumed. The leaf device reverts to uplink communication with a base station while searching for another relay. Downlink paging may be synchronized with the chirp/keep alive signaling. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US09324397B1

公开(公告)日：2016-04-26

申请号：US14598528

申请日：2015-01-16

Applicant: QUALCOMM Incorporated

Inventor： Kunal Mukesh Desai ,  Piyush Gupta ,  Bernie Jord Yang ,  Umesh Madhusudan Rao

IPC: G11C7/00 ,  G11C7/22 ,  G11C7/10 ,  G11C8/06 ,  G11C8/18

CPC classification number: G11C7/22 ,  G06F13/1694 ,  G11C7/10 ,  G11C8/06 ,  G11C8/18 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/15311 ,  H01L2924/00014

Abstract: A configurable die including a logic element configured to communicate a control and address (CA) signal and a data (DQ) signal, and a first generic physical interface (PHY) and a second generic PHY in communication with the logic element, wherein each of the first generic PHY and the second generic PHY is configurable as a CA PHY and as a DQ PHY, and wherein the logic element is configurable to communicate the CA signal and the DQ signal to different ones of the first and second generic PHYs.

Abstract translation: 一种可配置管芯，包括被配置为传送控制和地址（CA）信号和数据（DQ））信号的逻辑元件，以及与逻辑元件通信的第一通用物理接口（PHY）和第二通用PHY，其中每个 第一通用PHY和第二通用PHY可配置为CA PHY和DQ PHY，并且其中逻辑元件可配置为将CA信号和DQ信号传送到第一和第二通用PHY中的不同PHY。

公开(公告)号：US12302261B2

公开(公告)日：2025-05-13

申请号：US17647718

申请日：2022-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Piyush Gupta ,  Junyi Li ,  Peter Gaal ,  Hua Wang ,  Juan Montojo ,  Jing Sun ,  Wooseok Nam

IPC: H04W52/52 ,  H04W72/1263

Abstract: Aspects of the present disclosure provide techniques for using automatic gain control symbols to indicate a sidelink mini-slot. A method performed by a transmitting user equipment includes transmitting, during a first time portion of a symbol within a slot, a first beam associated with a first receiving user equipment. The first time portion of the symbol is configured to indicate that the first receiving user equipment will receive another transmission from the transmitting user equipment during a first mini-slot within the slot associated with the first time portion. The method may further include transmitting, during a second time portion of the symbol within the slot, a second beam associated with a second receiving user equipment. The second time portion of the symbol is configured to indicate that the second receiving user equipment will receive another transmission from the transmitting user equipment during a second mini-slot within the slot.

公开(公告)号：US12256398B2

公开(公告)日：2025-03-18

申请号：US17315993

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Xiaojie Wang ,  Piyush Gupta ,  Peter Gaal ,  Shuanshuan Wu ,  Sony Akkarakaran

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/1812 ,  H04W72/23 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. The method may involve a first user equipment (UE) receiving an indication of a set of sidelink resources and an indication of a set of uplink resources for transmitting sidelink feedback information. The first UE may receive a sidelink shared channel transmission from a second UE and upon receiving the sidelink shared transmission, generate feedback information regarding the sidelink shared channel transmission and transmit the feedback information directly to the base station using the set of uplink resources.

公开(公告)号：US12185363B2

公开(公告)日：2024-12-31

申请号：US17370997

申请日：2021-07-08

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Xiaoxia Zhang ,  Jing Sun ,  Yisheng Xue ,  Junyi Li ,  Rajat Prakash ,  Ozcan Ozturk ,  Peter Gaal ,  Sony Akkarakaran ,  Tao Luo ,  Gabi Sarkis

IPC: H04W72/566 ,  H04L1/1812 ,  H04W52/34 ,  H04W72/23

Abstract: Aspects relate to techniques for enhancing sidelink scheduling information to include a priority assigned to a sidelink transmission. For example, a transmitting wireless communication device may receive sidelink scheduling information scheduling a sidelink transmission from a transmitting wireless communication device to a receiving wireless communication device. The sidelink scheduling information may further include a priority indicator associated with the sidelink transmission. The transmitting wireless communication device may then transmit the sidelink transmission to the receiving wireless communication device based on the scheduling information. The priority indicator may further facilitate hybrid automatic repeat request (HARQ) codebook construction on the sidelink and uplink for the transmission of acknowledgement information of the sidelink transmission.

公开(公告)号：US12159343B2

公开(公告)日：2024-12-03

申请号：US17845864

申请日：2022-06-21

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  David Kirk McAllister

IPC: G06T15/06 ,  G06F7/24 ,  G06T17/10

Abstract: Systems and techniques are provided for accelerated shadow ray traversal for a hierarchical structure for ray tracing. For instance, a process can include obtaining a hierarchical acceleration data structure, the hierarchical acceleration data structure including one or more primitives of a scene object. Two or more nodes included in a same level of the hierarchical acceleration data structure can be sorted into a sort order, the sort order based on a sorting parameter value determined for each respective node of the two or more nodes. The sorting parameter value can be associated with a probability of determining a ray-opaque primitive intersection for each respective node of the two or more nodes. An intersection between a shadow ray and an opaque primitive included in a node of the two or more nodes can be determined based on traversing the hierarchical acceleration data structure using the sort order.