公开(公告)号：US20180324306A1

公开(公告)日：2018-11-08

申请号：US16038023

申请日：2018-07-17

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Simone Merlin ,  George Cherian ,  Santosh Paul Abraham ,  Gwendolyn Denise Barriac ,  Hemanth Sampath

IPC: H04M3/56 ,  H04L12/18 ,  H04L5/00

CPC classification number: H04M3/567 ,  H04L5/0055 ,  H04L12/189 ,  H04M2203/205 ,  H04M2203/356

Abstract: Devices and methods for synchronized group messaging in a wireless communication system are described. Multicast transmissions, such as those in a dense network, can cause significant medium usage because same multicast packet is likely sent by multiple APs at different time. Medium usage in such implementations may be redundant. As such, the transmission medium is not used optimally. Devices and methods which coordinate and align group messages (e.g., multicast packets) amongst APs are described. Each AP may be configured to transmit identical packets at the same time. Therefore, medium usage can be reduced, while the range can be extended due to accumulated energy from APs.

公开(公告)号：US10091817B2

公开(公告)日：2018-10-02

申请号：US15342906

申请日：2016-11-03

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  George Cherian ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou ,  Qingjiang Tian

IPC: H04W74/08 ,  H04W72/04 ,  H04W52/50 ,  H04W52/28

Abstract: A wireless first device may receive a packet from another device from an overlapping basic service set (OBSS). A received power of the packet may be greater than a threshold for transmitting during the time of the packet. If the first device reduces its transmit power, the first device may increase the threshold. If the received power is less than the increased threshold, the first device may count down a backoff count during a transmission time or transmission opportunity of the packet. In some cases, after the transmission time or transmission opportunity, the first device may increase its transmission power. In some cases, the condition for counting down a backoff count may also include initiating or finishing the transmission during the transmission time or the transmission opportunity of the packet, or transmitting at the reduced power.

公开(公告)号：US20180262936A1

公开(公告)日：2018-09-13

申请号：US15916141

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04B17/318 ,  H04B17/373 ,  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 determine each wireless node (e.g., station) in the cluster that needs to be nulled by another wireless node (e.g., an access point). For example, one of the wireless nodes may obtain signal measurement information from the other wireless nodes and thereby generate a list of wireless nodes (e.g., access points) that need to null one or more wireless nodes (e.g., stations).

公开(公告)号：US20180206143A1

公开(公告)日：2018-07-19

申请号：US15872744

申请日：2018-01-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/02 ,  H04W76/15 ,  H04L29/08 ,  H04W72/08

CPC classification number: H04W40/02 ,  H04B1/0483 ,  H04B1/1615 ,  H04L1/1621 ,  H04L1/1628 ,  H04L5/0053 ,  H04L5/0055 ,  H04L45/245 ,  H04L47/34 ,  H04L47/41 ,  H04L61/6022 ,  H04L65/607 ,  H04L67/14 ,  H04W8/22 ,  H04W28/0215 ,  H04W28/0221 ,  H04W28/06 ,  H04W48/16 ,  H04W52/0216 ,  H04W52/0229 ,  H04W72/085 ,  H04W76/00 ,  H04W76/15 ,  H04W76/20 ,  H04W84/12 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/40

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques may increase throughput of a wireless network, improve utilization of available channels, or provide other benefits. For example, the ability for a single traffic flow to span across different channels may increase the capacity of the network, may reduce communication latency, etc. In accordance with aspects of the present disclosure, a wireless device supporting multi-link communication may identify an anchor link and one or more supplementary links. For example, the anchor link may provide reliable communications while the supplementary links may provide increased throughput relative to the anchor link As an example, the anchor link may be dedicated for use to communicate management or control information, as well as data, while the supplementary links in the multi-link session may be used to communicate data according to the control and management information transmitted on the anchor link.

公开(公告)号：US20180205434A1

公开(公告)日：2018-07-19

申请号：US15835231

申请日：2017-12-07

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/26

CPC classification number: H04B7/0613 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/2665 ,  H04B7/2668 ,  H04B7/2671 ,  H04B7/2684 ,  H04W52/0216 ,  H04W72/121 ,  H04W74/0808 ,  H04W74/0816 ,  H04W74/0825 ,  H04W84/12

Abstract: Methods and systems for coordinating simultaneous transmission by two or more access points over a single channel of a wireless medium are disclosed. In one aspect, a method includes determining, by a first access point, a time when the first access point and a second access point will transmit simultaneously over the channel, and transmitting, by the first access point, over the channel at the time.

公开(公告)号：US09998930B2

公开(公告)日：2018-06-12

申请号：US14714115

申请日：2015-05-15

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian ,  Simone Merlin

IPC: H04W24/02 ,  H04W36/00 ,  H04W8/00

CPC classification number: H04W24/02 ,  H04W8/005 ,  H04W36/0061

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one implementation, an apparatus includes a processing system configured to receive information related to a first device, wherein the information includes an indication that the first device is configured to change its operating channel, exclude the first device from an available device list in a neighbor report in response to receiving the indication that the first device is configured to change its operating channel, and output the neighbor report for transmission to a second device.

公开(公告)号：US09949181B2

公开(公告)日：2018-04-17

申请号：US13767637

申请日：2013-02-14

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian ,  Hemanth Sampath

IPC: H04W36/00 ,  H04W36/36

CPC classification number: H04W36/0083 ,  H04W36/36

Abstract: An access terminal adapts (e.g., self-optimizes) at least one handover parameter used by the access terminal for determining whether and/or how to handover from one access point to another access point. In addition, the access terminal uses different handover parameters for handover between different pairs of access points. For each of the access point pairs, the access terminal maintains a record of any handover issues that occur during handover of the access terminal between the access points. In the event a handover issue arises for a given pair of access points, the access terminal may adapt the handover parameter(s) associated with that access point pair in an attempt to mitigate the handover issue. In the event handover parameter adaptation occurs or occurs too frequently, the access terminal may store the adapted handover parameters for use during a subsequent handover operation and/or handover parameter adaptation operation.

公开(公告)号：US09894641B2

公开(公告)日：2018-02-13

申请号：US14864734

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Gang Ding ,  Simone Merlin ,  Gwendolyn Denise Barriac ,  George Cherian ,  Yan Zhou ,  Qingjiang Tian ,  Vinay Praneeth Boda

IPC: H04W72/04 ,  H04B7/04 ,  H04W72/02 ,  H04W72/12 ,  H04W28/26 ,  H04B7/0452 ,  H04L5/00 ,  H04W28/04 ,  H04W74/06 ,  H04W74/04 ,  H04W84/12

CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04L5/0055 ,  H04W28/04 ,  H04W28/26 ,  H04W72/02 ,  H04W72/121 ,  H04W72/1278 ,  H04W74/04 ,  H04W74/06 ,  H04W84/12

Abstract: A user terminal for multiple-user wireless communication is provided, comprising a transmit buffer configured to store uplink data for transmission. The user terminal comprises a processor configured to generate a request to transmit frame in response to uplink data being present in the transmit buffer, and initiate a transmit timer for determining when to transmit the request to transmit frame. The user terminal comprises a transmitter configured to transmit the request to transmit frame when the transmit timer expires or when the uplink data present in the transmit buffer exceeds a threshold amount. The user terminal comprises a receiver configured to receive a clear to transmit frame from an access point based on the transmitted request to transmit frame. The transmitter is further configured to transmit the uplink data present in the transmit buffer, concurrently with at least one other user terminal transmitting uplink data, to the access point at a specified time based on receiving the clear to transmit frame addressed to the user terminal.

公开(公告)号：US09839050B2

公开(公告)日：2017-12-05

申请号：US15000900

申请日：2016-01-19

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian

IPC: H04W72/12 ,  H04W8/00 ,  H04W48/12 ,  H04W88/08

CPC classification number: H04W72/1273 ,  H04W8/005 ,  H04W48/12 ,  H04W72/1284 ,  H04W88/08

Abstract: A method includes receiving data at a first access point. The method also includes generating, at the first access point, a transmission schedule based on the data. The transmission schedule indicates when the first access point is to transmit a fast initial link setup discovery (FD) frame. The method further includes selectively transmitting, from the first access point, FD frames based on the transmission schedule.

公开(公告)号：US09838940B2

公开(公告)日：2017-12-05

申请号：US14487019

申请日：2014-09-15

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Simone Merlin ,  Hao Zhu ,  Srinivas Katar ,  Lawrence Winston Yonge, III ,  Chao Zou ,  Bin Tian ,  Yan Zhou ,  Hemanth Sampath

IPC: H04W4/00 ,  H04W40/02 ,  H04W88/08 ,  H04W74/00 ,  H04W48/08 ,  H04W74/08 ,  H04W84/12 ,  H04W48/16

CPC classification number: H04W40/02 ,  H04W48/08 ,  H04W48/16 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/08

Abstract: Aspects of the present disclosure provide techniques and apparatus for deferral based on basic service set identification (BSSID) information. According to certain aspects, a method for wireless communications is provided. The method generally includes receiving, on a shared access medium, a packet having at least one deferral-related parameter and deciding whether to defer transmission on the shared access medium based, at least in part, on the deferral-related parameter. Another method may generally include generating a packet comprising at least one deferral-related parameter to be used by another apparatus for deciding whether or not the other apparatus should defer transmitting on a shared access medium and providing the packet to the other apparatus.