公开(公告)号：US10477538B2

公开(公告)日：2019-11-12

申请号：US14645852

申请日：2015-03-12

Applicant: QUALCOMM Incorporated

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

IPC: H04B1/69 ,  H04W72/04 ,  H04L5/00 ,  H04W48/10 ,  H04W52/02 ,  H04L1/18 ,  H04L1/00

Abstract: Apparatuses, systems, and devices are described for transmissions and retransmissions of device-to-device (D2D) communications. A D2D message may be transmitted during an initial communications period, followed by one or more retransmissions. A device may transmit an initial transmission, determine a time hopping pattern for the retransmission(s), and determine a transmission resource for the retransmission(s) based at least in part on a resource of the initial transmission and the time hopping pattern. The messages may include, for example, a scheduling assignment (SA) for data transmission, or data transmissions from a transmitting device. Time hopping patterns may be determined based on times and/or frequencies of the initial transmission. A base station may transmit a message to a transmitting device that indicates one or more time hopping patterns that are to be used for the transmissions.

公开(公告)号：US10412571B2

公开(公告)日：2019-09-10

申请号：US15061896

申请日：2016-03-04

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Hong Cheng ,  Michaela Vanderveen ,  Haris Zisimopoulos ,  Bilal Sadiq ,  Kapil Gulati

IPC: H04W8/00 ,  H04W24/10 ,  H04B17/318 ,  H04W76/14 ,  H04W88/04 ,  H04W48/16 ,  H04W48/12 ,  H04W48/08

Abstract: A method, a computer-readable medium, and an apparatus are provided. The apparatus may be a user equipment (UE). The apparatus may transmit, to a base station, information indicating a capability to communicate with one or more relay UEs. In addition, the apparatus may receive, from the base station, configuration information associated with a discovery procedure for identifying the one or more relay UEs. Further, the apparatus may perform the discovery procedure based on the configuration information.

公开(公告)号：US10237904B2

公开(公告)日：2019-03-19

申请号：US15048463

申请日：2016-02-19

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Sudhir Kumar Baghel ,  Michaela Vanderveen ,  Saurabha Rangrao Tavildar ,  Haris Zisimopoulos ,  Shailesh Patil ,  Bilal Sadiq ,  Kapil Gulati

IPC: H04W4/02 ,  H04W4/08 ,  H04W4/80 ,  H04W4/90 ,  H04W8/00 ,  H04W76/14 ,  H04W76/34 ,  H04W88/04

Abstract: Methods, systems, and devices are describe for signaling protocols for proximity service functions in a wireless communication system. A first wireless device may identify a wireless relay requirement associated with the first wireless device. A proximity service protocol may be initiated between the first wireless device and a second wireless device based at least in part on the identified wireless relay requirement. The proximity service protocol may be initiated prior to an initiation of a communication data exchange between the first wireless device and the second wireless device. A relay link may be established, via the ProSe protocol, between the first wireless device and the second wireless device based at least in part on the identified wireless relay requirement.

公开(公告)号：US10219269B2

公开(公告)日：2019-02-26

申请号：US14168266

申请日：2014-01-30

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Shailesh Patil ,  Saurabha Rangrao Tavildar ,  Junyi Li

IPC: H04W72/04 ,  H04L5/00 ,  H04W8/00

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE determines a second set of resource block pairs on which to transmit a peer discovery message in a second time cycle based on a mapping of a first set of resource block pairs in a first time cycle to the second set of resource block pairs in the second time cycle. The mapping is a one-to-one mapping between each resource block pair in the first set of resource block pairs to a corresponding resource block pair in the second set of resource block pairs. Resource block pairs in the first set of resource block pairs may be in adjacent allocated resources. The UE transmits the peer discovery message in the determined second set of resource block pairs.

公开(公告)号：US10212651B2

公开(公告)日：2019-02-19

申请号：US15086814

申请日：2016-03-31

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/14 ,  H04W48/00 ,  H04W76/14 ,  H04B7/155 ,  H04W24/10 ,  H04W8/00 ,  H04W88/04 ,  H04W48/12 ,  H04W40/12

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a first link quality. The first link quality indicates a link quality of a first link between a first potential relay UE and the remote UE. The apparatus determines a second link quality. The second link quality indicates a link quality of a second link between the first potential relay UE and a first base station. The apparatus ranks the first potential relay UE relative to a second potential relay UE. The ranking of the first potential relay UE is based on a combination of the first link quality and the second link quality. The apparatus selects one of the first potential relay UE and the second potential relay UE for a relay connection based on the ranking of the first potential relay UE relative to the second potential relay UE.

公开(公告)号：US10111204B2

公开(公告)日：2018-10-23

申请号：US15181204

申请日：2016-06-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Techniques for scheduling assignment (SA) transmissions in device-to-device (D2D) communications are described. A D2D user equipment (UE) may use a block of time resources for SA transmissions. A D2D UE may transmit an SA transmission relatively quickly after determining that D2D data is to be transmitted to another D2D UE, relative to having to wait for specified time resources to send an SA transmission. The D2D data may then be transmitted following the SA transmission, reducing latency for transmission of the D2D data. It may be desirable for vehicle-to-vehicle (V2V) transmissions to have a relatively low latency to provide data from one vehicle to another with sufficient time for a vehicle to take action while moving at relatively high rates of speed.

公开(公告)号：US09883513B2

公开(公告)日：2018-01-30

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: H04W4/00 ,  H04W72/04 ,  H04W52/38 ,  H04W72/12 ,  H04W76/02 ,  H04W88/06 ,  H04W72/14

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.

公开(公告)号：US09848454B2

公开(公告)日：2017-12-19

申请号：US14599254

申请日：2015-01-16

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Sudhir Kumar Baghel ,  Peter Gaal ,  Saurabha Rangrao Tavildar

IPC: H04W72/00 ,  H04W76/02 ,  H04W72/12 ,  H04W72/02

CPC classification number: H04W76/14 ,  H04W72/02 ,  H04W72/1263

Abstract: Methods, systems, and devices are described for switching a mode of operations in device to device (D2D) communications. A UE within the coverage area of a base station may communicate directly with other UEs using a centralized transmission resource schedule. Prior to experiencing radio link failure (RLF), the UE may determine that switching parameters have been met and transition to an intermediate mode based on a distributed transmission schedule using a pool of resources established by the base station. In one example, the switching parameters may be received from the base station in a connection response message. In another example, the UE may send a switching request to the base station prior to initiating the transition to the intermediate mode. In some cases, after the transition to the intermediate mode, the UE may experience a radio link failure and transition to a distributed mode using a predetermined pool of resources.

公开(公告)号：US09826460B2

公开(公告)日：2017-11-21

申请号：US15093483

申请日：2016-04-07

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/00 ,  H04W40/22 ,  H04L5/00 ,  H04W24/08 ,  H04W4/02 ,  H04W8/00 ,  H04W72/04 ,  H04W76/02 ,  H04W88/04

CPC classification number: H04W40/22 ,  H04B7/2606 ,  H04L5/0048 ,  H04W4/02 ,  H04W8/005 ,  H04W24/08 ,  H04W72/0426 ,  H04W76/14 ,  H04W88/04

Abstract: An efficient approach for a mobile device apparatus that is out of network coverage to communicate with the network is desired. The apparatus may be a user equipment (UE). The apparatus receives one or more device-to-device (D2D) signals respectively from one or more proximate UEs. The apparatus measures signal strength of the one or more D2D signals based on signal strength of one or more resource elements used for receiving one and/or more reference signals of the one or more D2D signals or signal strength of one or more resource elements used for receiving one or more data parts of the one or more D2D signals. The apparatus selects one of the one or more proximate UEs as a relay UE based on the measurement of the signal strength of the one or more D2D signals, to communicate with the base station via the selected relay UE.

公开(公告)号：US09668232B2

公开(公告)日：2017-05-30

申请号：US15061263

申请日：2016-03-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W60/00 ,  H04W8/00 ,  H04W88/02 ,  H04W76/02

CPC classification number: H04W60/005 ,  H04W8/005 ,  H04W72/0453 ,  H04W76/14 ,  H04W88/02

Abstract: Methods, systems, and devices are describe for signaling protocols for device-to-device discovery operations in a wireless communication system. A user equipment (UE) may be communicating with a serving base station using a first frequency in a first frequency band. The UE may transmit, to the serving base station, information associated with performing a discovery scan procedure on a second frequency in a second frequency band during a discovery scan interval. The first frequency may be different from the second frequency. The UE may identify a capability to skip one or more downlink transmissions from the serving base station during the discovery scan interval.