公开(公告)号：US10178582B2

公开(公告)日：2019-01-08

申请号：US13957366

申请日：2013-08-01

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Simone Merlin ,  Santosh Paul Abraham ,  Maarten Menzo Wentink ,  Hemanth Sampath

IPC: H04W28/06 ,  H04L1/18

Abstract: Systems, methods, and devices for communicating packets having a plurality of types are described herein. In some aspects, the packets include a MAC header with a frame control field. The sub-fields included in a particular frame control field may be based on the type of information to be communicated to the receiving device.

公开(公告)号：US10051516B2

公开(公告)日：2018-08-14

申请号：US14994604

申请日：2016-01-13

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink

IPC: H04W74/08 ,  H04W28/04 ,  H04W16/14 ,  H04W84/12 ,  H04W88/02

Abstract: Systems and methods are disclosed that may ensure equal medium access between a first wireless device associated with a load based equipment (LBE) protocol and a number of second wireless devices associated with an enhanced distributed channel access (EDCA). The first wireless device may determine a level of contention associated with gaining access to a wireless medium, select a contention window size based, at least in part, on the determined level of contention, and select, for a medium access contention operation, a random back-off number from a range of numbers defined by the selected contention window size.

公开(公告)号：US09936492B2

公开(公告)日：2018-04-03

申请号：US14795833

申请日：2015-07-09

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Simone Merlin ,  Albert Van Zelst

IPC: H04W4/00 ,  H04W72/04 ,  H04L29/08 ,  H04L1/00 ,  H04W28/22 ,  H04W72/12 ,  H04W84/12

CPC classification number: H04W72/042 ,  H04L1/007 ,  H04L69/323 ,  H04W28/22 ,  H04W72/048 ,  H04W72/1268 ,  H04W72/1289 ,  H04W84/12

Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of transmitting a physical layer convergence protocol data unit on a wireless medium includes generating a first portion and a second portion of the physical layer convergence protocol data unit, transmitting the first portion at a first data rate, the first portion decodable by a first and second sets of devices, and transmitting the second portion at a second data rate higher than the first data rate, the second portion decodable by the second set of devices.

公开(公告)号：US09906444B2

公开(公告)日：2018-02-27

申请号：US13840166

申请日：2013-03-15

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Maarten Menzo Wentink ,  Simone Merlin

IPC: H04L12/28 ,  H04L12/741 ,  H04W12/02 ,  H04W12/10 ,  H04W28/06

CPC classification number: H04L45/74 ,  H04W12/02 ,  H04W12/10 ,  H04W28/06

Abstract: Certain aspects of the present disclosure provide methods and apparatus for applying security to packets, for example, packets utilizing short MAC headers.

公开(公告)号：US09839008B2

公开(公告)日：2017-12-05

申请号：US14622580

申请日：2015-02-13

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W72/04 ,  H04L5/0055 ,  H04W74/08 ,  H04W74/0833 ,  H04W84/12

Abstract: Methods, systems, and devices are described for avoiding extended interframe space (EIFS) in a wireless local area network (WLAN). A wireless device may transmit a message during a transmit opportunity (TXOP) that includes a first portion transmitted at a first data rate and a second portion transmitted at a second rate that is higher than the first. The wireless device may then transmit a terminating message at the first data rate. The wireless device may also receive a second message prior to transmitting the terminating message. The terminating message may be a clear-to-send message (CTS) or an acknowledgement (ACK) message. The first message may be an aggregate media access control packet data unit (A-MPDU) in which the first portion is a preamble and the second portion is an MPDU.

公开(公告)号：US09794796B2

公开(公告)日：2017-10-17

申请号：US13837597

申请日：2013-03-15

Applicant: Qualcomm Incorporated

Inventor： Santosh Paul Abraham ,  Alfred Asterjadhi ,  Simone Merlin ,  Maarten Menzo Wentink

IPC: H04J3/08 ,  H04W16/26 ,  H04B7/155 ,  H04B7/26 ,  H04L1/16 ,  H04L1/18 ,  H04L1/00

CPC classification number: H04W16/26 ,  H04B7/155 ,  H04B7/2606 ,  H04L1/1628 ,  H04L1/1867 ,  H04L2001/0097

Abstract: Systems, methods, and devices for communicating data in a wireless communications network are described herein. In some aspects, a relay provides relay services for network communication between a first station and a second station. In one aspect, the relay may receive data packets sent to the second station by the first station, and retransmit the data packets if it determines that the second station has not acknowledged the data packet. In one other aspect, the first station may be configured to transmit a relay-able acknowledgement that includes a sequence number identifying data being acknowledged. The relay may be configured to receive a transmission of a first relay-able acknowledgement by the first station and retransmit a second relay-able acknowledgement if it determines the second station did not receive the first relay-able acknowledgement sent by the first station. In some aspects, the second station is an access point.

公开(公告)号：US09781671B2

公开(公告)日：2017-10-03

申请号：US14286843

申请日：2014-05-23

Applicant: Qualcomm Incorporated

Inventor： Maarten Menzo Wentink ,  Hemanth Sampath

IPC: G08C17/00 ,  H04W52/02 ,  H04W74/06 ,  H04L1/16 ,  H04W74/00 ,  H04W28/02 ,  H04B1/38

CPC classification number: H04W52/0225 ,  H04L1/1685 ,  H04W28/0278 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0235 ,  H04W74/006 ,  H04W74/06 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23

Abstract: A particular method includes receiving a first frame from a station at an access point indicating that the station is to enter a power save mode. The method also includes transmitting one or more data frames from the access point to the station. The one or more data frames were buffered for transmission prior to receipt of the first frame. The method further includes transmitting an end of data frame to the station. Another particular method includes transmitting a first frame from the station to the access point indicating that the station is to enter the power save mode. The method also includes refraining from entering the power save mode until an end of data frame is received from the access point.

公开(公告)号：US09781235B2

公开(公告)日：2017-10-03

申请号：US14208808

申请日：2014-03-13

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Alfred Asterjadhi

IPC: H04L29/08 ,  H04W28/06

CPC classification number: H04L69/324 ,  H04W28/06

Abstract: Certain aspects of the present disclosure provide methods and apparatus for indicating a subframe format. For example, the apparatus may generally include a processing system configured to generate a subframe of a data unit, the subframe comprising a first field that indicates a presence or absence of at least one of a source address (SA) or destination address (DA) in the subframe. The apparatus may also include a transmitter configured to transmit the subframe to another apparatus using frame aggregation.

公开(公告)号：US09750057B2

公开(公告)日：2017-08-29

申请号：US14292006

申请日：2014-05-30

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink

IPC: H04W74/08

CPC classification number: H04W74/085 ,  H04W74/08

Abstract: Methods, systems, and devices are described for enhanced network utilization between an access point and a number of wireless stations. A station (STA), following a transmit opportunity (TXOP), may determine a utilization of the TXOP. Based on the determination, the STA may adjust a delay time for a subsequent transmission. The adjustment of the delay time may include increasing an initial contention window (CW), increasing a backoff value, and/or increasing a number of backoffs for TXOPs following an underutilized TXOP. The increased delay time may result in, on average, increased backoff times in such situations. The delay time may be reduced to a minimum delay time following a certain number of TXOPs that more fully utilize the TXOP. Utilization of the TXOP may be determined based on an amount of time used for the TXOP relative to a TXOP limit that may be set by an access point.

公开(公告)号：US09699667B2

公开(公告)日：2017-07-04

申请号：US13735956

申请日：2013-01-07

Applicant: Qualcomm Incorporated

Inventor： Hemanth Sampath ,  Maarten Menzo Wentink ,  Simone Merlin

IPC: H04W24/02 ,  H04W52/02 ,  H04W72/04 ,  H04L25/02 ,  H04L25/03

CPC classification number: H04W24/02 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03159 ,  H04W52/0209 ,  H04W72/042

Abstract: A particular method includes transmitting a frame from a station to an access point. The frame includes a beacon sequence number related to a configuration of the access point. The method also includes, in response to transmitting the frame, receiving an update frame from the access point. The update frame indicates at least one change in the configuration of the access point.