公开(公告)号：US10111167B2

公开(公告)日：2018-10-23

申请号：US15148071

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  Simone Merlin ,  George Cherian

IPC: H04W52/02 ,  H04L29/12 ,  H04W48/16 ,  H04W84/12 ,  H04W88/08

Abstract: Methods, systems, and devices are described for wireless communication. A wireless node may detect and resolve collisions in reduced version of basic service set identifiers (BSSIDs). The collisions may be the result of multiple basic service sets (BSSs) using the same values for reduced versions of BSSIDs. For example, the BSSs may use the same value for X-bit color indicators which results in a color collision if the BSSs are neighbor BSSs. When such a scenario occurs, the node may detect the collision by referencing reduced version BSSID information from broadcasts or backhaul communications with one of the involved BSSs. Alternatively, the node may determine that frames from two different BSSs include the same color bits. The node may resolve the detected color collision by triggering a change in the reduced version BSSID for one of the involved BSSs.

公开(公告)号：US20180263045A1

公开(公告)日：2018-09-13

申请号：US15916195

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Venkata Ramanan Venkatachalam Jayaraman

IPC: H04W72/12 ,  H04B7/0413

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, selected stations may be triggered to communicate with respective access points.

公开(公告)号：US20180263044A1

公开(公告)日：2018-09-13

申请号：US15916181

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod Patil ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W72/12 ,  H04B7/0413 ,  H04B7/06

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

公开(公告)号：US20180263043A1

公开(公告)日：2018-09-13

申请号：US15916163

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod Patil ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W72/12 ,  H04L5/00 ,  H04B7/0413

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule sounding operations by the wireless nodes (e.g., access points and/or stations) operating within the cluster.

公开(公告)号：US20180091632A1

公开(公告)日：2018-03-29

申请号：US15826541

申请日：2017-11-29

Applicant: QUALCOMM Incorporated

Inventor： Dung Ngoc Doan ,  Tao Tian ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Eric Pierre Rebeiz ,  Rahul Tandra ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou

IPC: H04L29/06 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04L69/22 ,  H04L27/261 ,  H04W72/04

Abstract: A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.

公开(公告)号：US09838513B2

公开(公告)日：2017-12-05

申请号：US14856351

申请日：2015-09-16

Applicant: QUALCOMM Incorporated

Inventor： Dung Ngoc Doan ,  Tao Tian ,  Sameer Vermani ,  Bin Tian ,  Lin Yang ,  Eric Pierre Rebeiz ,  Rahul Tandra ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou

IPC: H04L29/06 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L69/22 ,  H04L27/261 ,  H04W72/04

Abstract: A method of wirelessly communicating a packet includes generating, at a first wireless device, a first packet including a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field. The second preamble includes a first training field. The method further includes transmitting the first packet concurrently with one or more second packets to be transmitted by wireless devices other than the first wireless device.

公开(公告)号：US20170244476A1

公开(公告)日：2017-08-24

申请号：US15589924

申请日：2017-05-08

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani ,  Bin Tian ,  Yan Zhou ,  Rahul Tandra

IPC: H04B7/26 ,  H04J1/14 ,  H04L1/16 ,  H04W52/02 ,  H04W74/02 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04B7/2621 ,  H04B7/26 ,  H04J1/02 ,  H04J1/14 ,  H04L1/1685 ,  H04L1/18 ,  H04L1/1861 ,  H04L5/0005 ,  H04L5/0007 ,  H04L5/0012 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0055 ,  H04L5/006 ,  H04L5/0069 ,  H04L5/0073 ,  H04L5/0094 ,  H04L2001/0093 ,  H04W52/0212 ,  H04W52/0219 ,  H04W74/002 ,  H04W74/02 ,  H04W74/0816 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/449

Abstract: Systems, methods, and devices for high-efficiency wireless frequency division multiplexing are provided. A method includes exchanging, at an access point, at least one frame reserving a wireless medium with at least one of a first and second wireless device. The method further includes receiving a first communication on a first set of wireless frequencies from the first wireless device. The method further includes receiving a second communication, at least partially concurrent with the first communication, on a second set of wireless frequencies from the second wireless device. The method further includes transmitting at least one acknowledgment of the first and second communication. The first set and the second set are mutually exclusive subsets of a set of wireless frequencies available for use by both the first and second wireless device.

公开(公告)号：US09729299B2

公开(公告)日：2017-08-08

申请号：US14265132

申请日：2014-04-29

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Simone Merlin ,  Rahul Tandra ,  Sameer Vermani ,  Yan Zhou ,  Bin Tian ,  Hemanth Sampath

IPC: H04L5/00 ,  H04J1/14 ,  H04J1/16 ,  H04W24/08 ,  H04W72/08 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04L5/0073 ,  H04J1/14 ,  H04J1/16 ,  H04L5/0005 ,  H04W24/08 ,  H04W72/042 ,  H04W72/082 ,  H04W74/0808

Abstract: Systems, methods, and computer readable storage media communicate with a wireless device within a dense wireless environment. In one aspect, a method includes determining whether a wireless device is subject to interference, adjusting a transmission attribute based on the determining, and transmitting a message to the wireless device based on the adjusted transmission attribute. In some aspects, adjusting a transmission attribute may include selecting one or more of time division multiplexing or frequency division multiplexing when communicating with the wireless device. In some aspects, particular time periods and/or particular frequency bands may be selected for communication with the device depending on whether the device is subject to interference.

公开(公告)号：US09723623B2

公开(公告)日：2017-08-01

申请号：US14850779

申请日：2015-09-10

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Gwendolyn Denise Barriac ,  Simone Merlin ,  George Cherian

IPC: H04W4/00 ,  H04W72/12 ,  H04W76/02 ,  H04W74/08

CPC classification number: H04W72/1263 ,  H04W4/70 ,  H04W72/121 ,  H04W74/0808 ,  H04W76/14

Abstract: An access point may schedule concurrent peer-to-peer transmissions for different stations in a basic service set (BSS) of an Institute of Electrical and Electronics Engineers (IEEE) 802.11 architecture.

公开(公告)号：US20170215228A1

公开(公告)日：2017-07-27

申请号：US15482503

申请日：2017-04-07

Applicant: QUALCOMM Incorporated

Inventor： ANDREI RADULESCU ,  Vinay Chande ,  Jen Chen ,  Christophe Chevallier ,  Farhad Meshkati ,  Sanjiv Nanda ,  Damanjit Singh ,  Mehmet Yavuz ,  Sumeeth Nagaraja ,  Yan Zhou

IPC: H04W84/04 ,  H04W84/10 ,  H04W36/08 ,  H04W36/00 ,  H04W36/04 ,  H04W36/06 ,  H04W92/12 ,  H04W28/18

Abstract: Methods and apparatuses are provided for causing active hand-in of a device from a macrocell base station to a femto node, which can be an inter-frequency hand-in. The femto node can broadcast a beacon, which can be received and reported by a device to a source base station along with one or more parameters. The source base station can communicate a handover message to the femto node or a related femto gateway along with the one or more parameters. The femto node or femto gateway can disambiguate the intended target femto node based in part on the one or more parameters, which can include applying one or more filters. Applying the one or more filters may include applying an UL RSSI filter to the one or more femto nodes to determine whether presence of the device causes a rise in UL RSSI measured at the one or more femto nodes.