公开(公告)号：US10390362B2

公开(公告)日：2019-08-20

申请号：US15368425

申请日：2016-12-02

Applicant: QUALCOMM Incorporated

Inventor： Piyush Gupta ,  Chong Li ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Shailesh Patil ,  Jing Jiang ,  Wei Zeng ,  Alexei Gorokhov ,  Junyi Li

IPC: H04W72/14 ,  H04W72/12 ,  H04W74/04 ,  H04W76/14

Abstract: An apparatus may receive, from a scheduling entity, sidelink grant information in a downlink control channel. After receiving the grant information in the downlink control channel, the apparatus may transmit a request-to-send (RTS) signal comprising an indication of a requested duration of time to reserve a sidelink channel for sidelink data. If the sidelink channel is available for the requested duration of time, the apparatus may receive a clear-to-send (CTS) signal configured to indicate an availability of the sidelink channel for the requested duration of time. Subsequently, the apparatus may communicate, with another apparatus different from the scheduling entity, the sidelink data using the sidelink channel during the requested duration of time. Afterwards, the apparatus may communicate acknowledgment information corresponding to the communication of the sidelink signal with the other apparatus. Various additional and alternative aspects are described herein.

公开(公告)号：US10383114B2

公开(公告)日：2019-08-13

申请号：US15400285

申请日：2017-01-06

Applicant: QUALCOMM Incorporated

Inventor： Libin Jiang ,  Shailesh Patil ,  Peter Gaal ,  Srinivas Yerramalli

IPC: H04W72/04 ,  H04L12/807 ,  H04W40/24 ,  H04W74/08

Abstract: Improvement in co-existence of the LTE device-to-device communication with another device-to-device communication method is desired. The apparatus selects a countdown number within a size of a contention window including a plurality of slots before a target subframe. The apparatus determines whether each slot of the plurality of slots is idle or utilized while waiting for the target subframe. The apparatus counts down the countdown number during each of the determined idle slots. The apparatus determines whether the countdown number has reached a threshold number before the target subframe. The apparatus performs, when the countdown number is determined to have reached the threshold number, one of: deferring from transmitting until the target subframe, or transmitting a CUBS until a next subframe or the target subframe.

公开(公告)号：US10345823B2

公开(公告)日：2019-07-09

申请号：US15671263

申请日：2017-08-08

Applicant: QUALCOMM INCORPORATED

Inventor： Libin Jiang ,  Shailesh Patil ,  Jubin Jose ,  Junyi Li

IPC: G01S19/51 ,  G05D1/02 ,  G01S19/42 ,  G08G1/16 ,  G01S19/41 ,  G01S19/14 ,  G01S5/00 ,  G01S5/02 ,  G01S19/53

Abstract: A method for developing and reporting enhanced user equipment (UE) location information includes obtaining a global positioning system (GPS) location for a user equipment (UE), determining a location of at least one radio frequency (RF) antenna relative to the GPS location, developing a reference frame based at least in part on the location of the at least one RF antenna, determining a location of a structural element of the UE, and transmitting the GPS location, the location of the at least one RF antenna, and the location of the structural element of the UE.

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：US10219279B2

公开(公告)日：2019-02-26

申请号：US14991845

申请日：2016-01-08

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil

IPC: H04W72/04 ,  H04W52/38 ,  H04W52/28 ,  H04W4/90 ,  H04W76/14

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a UE. The UE transmits a message to a base station. The message includes a status of the UE. The UE receives a DCI message from the base station based on the status. The DCI message includes transmit power control information for D2D communications. The transmit power control information indicates whether the UE can transmit at an allowed transmit power. The UE transmits data based on the transmit power control information received in the DCI message.

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：US10070462B2

公开(公告)日：2018-09-04

申请号：US15704622

申请日：2017-09-14

Applicant: QUALCOMM INCORPORATED

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Junyi Li ,  Georgios Tsirtsis

IPC: H04W4/00 ,  H04W74/08 ,  H04W84/18

Abstract: A method for communication includes accessing all sub-channels in a communication frame, generating a counter that counts down beginning with a received first listen before talk (LBT) communication symbol, determining whether the counter reaches zero before receiving a second LBT communication symbol, determining whether a desired number N of contiguous sub-channels are available, and if the desired number N of contiguous sub-channels are available, transmitting an LBT symbol.

公开(公告)号：US10027729B2

公开(公告)日：2018-07-17

申请号：US15158483

申请日：2016-05-18

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Sudhir Kumar Baghel ,  Michaela Vanderveen ,  Haris Zisimopoulos ,  Shailesh Patil ,  Zhibin Wu

IPC: H04L29/06 ,  H04W4/06 ,  H04L29/12 ,  H04W4/08 ,  H04W4/70 ,  H04W76/14

Abstract: The present disclosure enables a multicast and/or unicast transmitting UE to configure a multicast device-to-device communication and/or the unicast device-to-device communication such that UE may distinguish between the unicast and multicast device-to-device communications. The apparatus receives a unicast device-to-device communication including a destination identifier. The apparatus also receives a multicast device-to-device communication including the destination identifier. The apparatus differentiates the unicast device-to-device communication from the multicast device-to-device communication based on information provided in a header of the unicast device-to-device communication.