公开(公告)号：US10334586B2

公开(公告)日：2019-06-25

申请号：US15399157

申请日：2017-01-05

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Hua Chen

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

Abstract: One problem with current D2D communications is that there is no physical layer feedback (e.g., HARQ feedback) for unicast sidelink communications. That is, the transmitting UE does not know if the receiving UE receives and/or properly decodes the unicast transmission. Instead, current D2D communications require that a transmitting UE send a unicast sidelink communication multiple times to increase the chances that the unicast sidelink communication is received by the receiving UE. By blindly transmitting unicast sidelink communications multiple times, the spectral efficiency and radio resource utilization of the network is decreased. The present disclosure provides a solution to this problem by enabling HARQ feedback for unicast sidelink communications that improves the spectral efficiency and also enables better radio resource utilization for the network.

公开(公告)号：US20190110325A1

公开(公告)日：2019-04-11

申请号：US16156646

申请日：2018-10-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Shailesh Patil ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel

IPC: H04W76/14 ,  H04W72/04

Abstract: Wireless communication apparatus and methods related to wireless communication, for example, device-to-device feedback are described. In aspects, a method of wireless communication may include communicating a sidelink traffic communication using a sidelink communication structure, and communicating an allotting for sidelink feedback using at least one feedback symbol of the sidelink communication structure. In aspects, the method includes communicating, by a first wireless communication device, a sidelink feedback communication using at least one feedback symbol of the sidelink communication structure, wherein the sidelink feedback communication is associated with the sidelink traffic communication. Numerous other aspects are provided.

公开(公告)号：US10257677B2

公开(公告)日：2019-04-09

申请号：US15253701

申请日：2016-08-31

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Kapil Gulati ,  Hong Cheng ,  Shailesh Patil ,  Junyi Li ,  Georgios Tsirtsis ,  Bilal Sadiq

IPC: H04W4/70 ,  H04W48/16 ,  H04L29/06 ,  H04L5/00 ,  H04W76/14 ,  H04W76/27 ,  H04W12/06 ,  H04W84/04 ,  H04W88/04

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In an exemplary embodiment, the apparatus can receive a packet at a Uu protocol stack of a first user equipment (UE), the packet intended for a base station. In addition, the apparatus can transfer the packet from the Uu protocol stack of the first UE to a PC5 interface protocol stack of the first UE. Furthermore, the apparatus can modify a header of the packet at the PC5 interface protocol stack to identify the packet as relayed uplink traffic intended for the base station from the first UE. Moreover, the apparatus can transmit the packet including the modified header to a second UE for relaying to the base station.

公开(公告)号：US20190020440A1

公开(公告)日：2019-01-17

申请号：US16018478

申请日：2018-06-26

Applicant: QUALCOMM Incorporated

Inventor： Arvind Vardarajan Santhanam ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shailesh Patil ,  Zhibin Wu

IPC: H04L1/00 ,  H04L1/06 ,  H04L1/16 ,  H04W4/40 ,  H04W4/70 ,  H04W8/24

Abstract: Advertising wireless devices (e.g., user equipments (UEs)) within a distributed wireless network may indicate radio frequency and/or baseband capabilities (e.g., via transmitting capabilities messages). A responding UE may receive one or more capabilities messages, and identify radio frequency (RF) capabilities (e.g., indicated via a bitmap) and/or baseband capabilities of the advertising UEs. The responding UE may then determine a transmission scheduling policy based on the one or more received capabilities messages. For example, the responding UE may generate a combined list of frequencies based on the one or more received capabilities messages, and distribute transmissions over the list of frequencies. Additionally or alternatively, the responding UE may determine block decoding baseband capabilities of the one or more advertising UEs, and may accordingly enable block coding schemes for transmissions on frequencies supported by the advertising UEs with such block decoding baseband capabilities.

公开(公告)号：US10172172B2

公开(公告)日：2019-01-01

申请号：US14819843

申请日：2015-08-06

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Peter Gaal ,  Kapil Gulati ,  Amir Aminzadeh Gohari

IPC: H04W4/80 ,  H04W8/00 ,  H04W8/24 ,  H04W4/021 ,  H04W76/14 ,  H04W72/02

Abstract: Methods, systems, and devices are described for signaling device-to-device (D2D) capability information. A user equipment (UE) may determine a frequency band list of frequency bands supported for D2D proximity service communications. Based on the frequency band list, the UE may determine a proximity service record for a frequency band combination parameter, the frequency band combination parameter associated with non-D2D communications. The proximity service record may include a reduced capabilities record for the frequency band combination parameter that indicates reduced capabilities for non-D2D communications when D2D proximity service communications are active.

公开(公告)号：US09854506B2

公开(公告)日：2017-12-26

申请号：US14329606

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Libin Jiang ,  Kapil Gulati

IPC: H04W4/00 ,  H04W48/12 ,  H04L5/00 ,  H04W76/02 ,  H04W56/00 ,  H04W88/10

CPC classification number: H04W48/12 ,  H04L5/0037 ,  H04W56/0015 ,  H04W56/002 ,  H04W76/14 ,  H04W88/10

Abstract: Methods and devices are described for forwarding, managing, and/or detecting timing information for device-to-device discovery. Timing information may be received from a base station. A timing signal including the timing information may be transmitted. The timing signal may be transmitted during a sub-frame reserved for device-to-device discovery. Timing information for a base station may be transmitted to a user equipment (UE). Instructions to transmit a timing signal including the timing information during a sub-frame reserved for device-to-device discovery are also transmitted to the UE. Information indicating a timing of sub-frames reserved for device-to-device discovery by a neighboring base station may be received from a serving base station. A timing signal may be detected during at least one of the sub-frames reserved for device-to-device discovery. The timing signal may include timing information for the neighboring base station.

公开(公告)号：US20150271807A1

公开(公告)日：2015-09-24

申请号：US14607383

申请日：2015-01-28

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Sudhir Kumar Baghel ,  Kapil Gulati

IPC: H04W72/04 ,  H04W72/12 ,  H04W52/38 ,  H04W76/02

CPC classification number: H04W72/048 ,  H04W52/383 ,  H04W72/042 ,  H04W72/1215 ,  H04W72/1294 ,  H04W72/14 ,  H04W76/14 ,  H04W88/06

Abstract: Methods, systems, and devices are described for transmitting or receiving at least one grant to a device. The at least one grant may identify one or more scheduling assignment (SA) resources on which an SA is to be transmitted by the device for device-to-device (D2D) communications. The at least one grant may also identify one or more data resources on which data is to be transmitted by the device for D2D communications.

Abstract translation: 描述了用于向设备发送或接收至少一个授权的方法，系统和设备。 所述至少一个授权可以识别所述设备将要在其上发送设备到设备（D2D）通信的一个或多个调度分配（SA）资源。 所述至少一个授权还可以识别所述设备将要在D2D通信上发送数据的一个或多个数据资源。

公开(公告)号：US12302094B2

公开(公告)日：2025-05-13

申请号：US17645155

申请日：2021-12-20

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Hong Cheng ,  Shuanshuan Wu ,  Junyi Li ,  Kapil Gulati

IPC: H04W12/0431 ,  H04W12/041 ,  H04W72/30 ,  H04W72/40 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a node, a request for a security key for sidelink connectionless groupcast communication that is performed without a radio resource control connection between UEs. The request may indicate a distance from the UE for using the security key. The UE may receive, from the node, information that indicates the security key. Numerous other aspects are described.

公开(公告)号：US12289612B2

公开(公告)日：2025-04-29

申请号：US17381525

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Shuanshuan Wu ,  Kapil Gulati ,  Navid Abedini

IPC: H04W16/28 ,  H04B17/336 ,  H04L5/14 ,  H04W24/10 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described that provide for cooperative full-duplex techniques for sidelink communications. A first device that supports full-duplex communications may transmit a first message to a second device while concurrently receiving a second message from a third device. The first device may determine a set of parameters that indicate a presence of one or more objects that cause interference at the first device based on communicating with the second and third devices. The set of parameters may include location information, directional beam information, main beam information, and null interference beam information, or velocity information, or any combination thereof. The first device may broadcast an indication of the set of parameters to other devices. In some examples, a device that receives the set of parameters may determine communications parameters for communication with other devices that accounts for the indicated objects.

公开(公告)号：US12273793B2

公开(公告)日：2025-04-08

申请号：US18420475

申请日：2024-01-23

Applicant: QUALCOMM Incorporated

Inventor： Libin Jiang ,  Sudhir Kumar Baghel ,  Junyi Li ,  Kapil Gulati

IPC: G01S5/00 ,  G01S5/02 ,  H04W4/029 ,  H04W4/90

Abstract: Disclosed are techniques for using ranging signals to determine a position of a pedestrian user equipment (P-UE). In an aspect, a UE receives a plurality of ranging signals transmitted by one or more UEs, measures one or more properties of each of the plurality of ranging signals, and calculates an estimate of the position of the P-UE based on the one or more properties of each of the plurality of ranging signals. In an aspect, the P-UE transmits a plurality of ranging signals, receives a first message and a second message from first and second vehicle UEs (V-UEs), the first and second messages including first and second estimated positions of the P-UE and associated first and second confidences, and calculates an estimate of the position of the P-UE based on the first estimated position, the first confidence, the second estimated position, the second confidence, or a combination thereof.