公开(公告)号：US10548111B2

公开(公告)日：2020-01-28

申请号：US15412291

申请日：2017-01-23

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Sameer Vermani ,  Maarten Menzo Wentink ,  Rahul Tandra ,  Hemanth Sampath

IPC: H04B7/06 ,  H04B7/0413 ,  H04B7/0452 ,  H04W72/00 ,  H04W4/08 ,  H04W72/12 ,  H04W84/12 ,  H04W8/18

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for efficiently managing groups of stations (STAs) receiving simultaneous transmissions in a multiuser multiple-input multiple-output (MU-MIMO) scheme. One example method generally includes; for a first apparatus in a number of groups of apparatuses, allocating a first spatial stream position for each of at least one first group in the number of the groups; and transmitting a first unicast message to the first apparatus, wherein the first unicast message comprises an indication of the allocated spatial stream position for each of the at least one first group and, for each group in the number of the groups, an indication of a membership status, in the group, of the first apparatus.

公开(公告)号：US20190014599A1

公开(公告)日：2019-01-10

申请号：US16029467

申请日：2018-07-06

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Maarten Menzo Wentink ,  Abhishek Pramod Patil

IPC: H04W74/08 ,  H04W72/04 ,  H04W74/04

Abstract: This disclosure provides systems, methods and apparatuses for coordinating access to a shared wireless medium among multiple master devices operating on the same frequency band. In some implementations, master devices may contend for access to the shared medium during a medium reservation window (MRW). During the MRW, master devices may advertise their intent to reserve at least a portion of the shared medium for one or more timeslots within a subsequent medium utilization period. The reservation messages may be broadcast to other master devices in the vicinity to prevent other master devices from accessing the wireless medium during a reserved timeslot. In some implementations, the owner of a timeslot may share at least a portion of its timeslot with other master devices. For example, the timeslot owner may enable other master devices to utilize an unused portion of the wireless medium, such as unused channels, spatial streams, or time.

公开(公告)号：US10153812B2

公开(公告)日：2018-12-11

申请号：US14618881

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Albert van Zelst ,  Didier Johannes Richard van Nee ,  Vincent Knowles Jones, IV ,  Simon Jan Brand ,  Patrick Daniel Kelliher ,  MeeLan Lee ,  Todd Daniel Antes ,  Maarten Menzo Wentink

IPC: H04B7/04 ,  H04B7/0413 ,  H04L5/00 ,  H04W16/06 ,  H04W28/20 ,  H04L1/06 ,  H04W72/04

Abstract: A method for wireless communication is described herein. The method may include advertising support by a wireless device for a first bandwidth mode and a second bandwidth mode, wherein the first bandwidth mode utilizes a single channel and the second bandwidth mode utilizes channel bonding between a plurality of channels. The method may also include switching a current bandwidth mode of the wireless device from one of the bandwidth modes to the other of the bandwidth modes and adjusting a number of multiple-input, multiple-output (MIMO) spatial streams supported by the wireless device in response to the switching.

公开(公告)号：US10056949B2

公开(公告)日：2018-08-21

申请号：US15076529

申请日：2016-03-21

Applicant: QUALCOMM Incorporated

Inventor： Albert van Zelst ,  Didier Johannes Richard van Nee ,  Vincent Knowles Jones, IV ,  Simon Jan Brand ,  Patrick Daniel Kelliher ,  MeeLan Lee ,  Todd Daniel Antes ,  Maarten Menzo Wentink ,  Alireza Kheirkhahi ,  Ayse Yesilyurt

IPC: H04B7/0413 ,  H04B17/12

CPC classification number: H04B7/0413 ,  H04B17/12

Abstract: In an aspect a transceiver is provided. The transceiver may include a plurality of local oscillator (LO) generators configured to generate a plurality of LO signals, respectively, for mixing with one or more communication signals. The transceiver also includes a first synthesizer configured to generate a first reference signal and a second synthesizer configured to generate a second reference signal. The transceiver also includes a distribution circuit. The distribution circuit is configured to switch an input to at least one of the LO generators between the first and second reference signals for tuning each of the at least one of the LO generators between two different LO frequencies and to input to the other ones of the LO generators the first reference signal for tuning each of the other ones of the LO generators to an LO frequency.

公开(公告)号：US10014979B2

公开(公告)日：2018-07-03

申请号：US13770423

申请日：2013-02-19

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink

IPC: H04L12/64 ,  H04L12/06 ,  H04L5/00 ,  H04B7/0452 ,  H04L1/00 ,  H04L1/06 ,  H04L1/18

CPC classification number: H04L1/0061 ,  H04B7/0452 ,  H04L1/06 ,  H04L1/1848 ,  H04L5/0023 ,  H04L12/6418

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for starting an extended idle interval in an effort to avoid collisions with transmissions from hidden wireless nodes. One example apparatus generally includes a receiver and a processing system. The receiver is typically configured to receive a multi-user (MU) transmission comprising at least one packet for the apparatus. The processing system is typically configured to determine a checksum of the at least one packet and to start an idle interval associated with the apparatus after receiving the MU transmission if the at least one packet comprises a frame check sequence (FCS) that corresponds to the checksum, wherein the idle interval includes at least enough time for transmission of an acknowledgment (ACK) frame. For certain aspects, the idle interval may comprise an extended interframe space (EIFS).

公开(公告)号：US09973314B2

公开(公告)日：2018-05-15

申请号：US15090431

申请日：2016-04-04

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Simone Merlin ,  Alfred Asterjadhi

IPC: H04L5/00 ,  H04L1/00 ,  H04L1/16

CPC classification number: H04L5/005 ,  H04L1/0079 ,  H04L1/1671

Abstract: Systems and methods are disclosed that may communicate a control aggregate frame from a first wireless device to a second wireless device. A first wireless device may form a control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame. The control aggregate frame may include a single media access control (MAC) header, a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames, and a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames. After generating the control aggregate frame, the first wireless device may transmit it to the second wireless device.

公开(公告)号：US20180103450A1

公开(公告)日：2018-04-12

申请号：US15287322

申请日：2016-10-06

Applicant: QUALCOMM Incorporated

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

IPC: H04W68/02 ,  H04W68/00 ,  H04L1/16 ,  H04W28/06

Abstract: A method for reduced overhead paging by an access point is described. The method includes assigning at least one paging identifier to at least one station. The method also includes partitioning a paging identifier space into paging identifier sets. The method further includes generating a paging message based on at least one of the paging identifier sets and the at least one paging identifier. The method additionally includes sending the paging message.

公开(公告)号：US20180054723A9

公开(公告)日：2018-02-22

申请号：US15040596

申请日：2016-02-10

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Krishnan Rajamani

IPC: H04W8/00 ,  H04W76/02 ,  H04W8/24

CPC classification number: H04W8/005 ,  H04W8/24 ,  H04W76/10 ,  H04W76/12 ,  H04W76/14 ,  H04W84/12

Abstract: There lies a challenge to develop a technique of effectively establishing a direct communication link between client devices in a communication network. In some implementations, an associated STA is a client device which is associated with a particular access point (AP). A non-associated STA is a client device which is not associated with the AP. A tunneled probe request may be transmitted by an associated STA through the AP to be broadcast to other associated STAs. In some implementations, an active scan may be combined with a tunneled probe request in order to establish a communication link between an associated STA and a non-associated STA.

公开(公告)号：US09819770B2

公开(公告)日：2017-11-14

申请号：US14562644

申请日：2014-12-05

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink

IPC: H04W72/04 ,  H04L29/06 ,  H04L29/12 ,  H04W80/02 ,  H04W8/26 ,  H04W74/08

CPC classification number: H04L69/22 ,  H04L29/0653 ,  H04L29/12839 ,  H04L61/6022 ,  H04W8/26 ,  H04W72/0406 ,  H04W74/0808 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for using different MAC addresses in frames for the same station to indicate how to process the frames. In this manner, frames for IEEE 802.11ac can carry information not present in legacy frames (e.g., frames according to IEEE 802.11a/n), but these frames may be interpreted by legacy devices in a legacy way. One example method generally includes receiving a first frame comprising an indication of a first MAC address and processing the received first frame based on the first MAC address. For certain aspects, the method further includes receiving a second frame comprising an indication of a second MAC address, wherein the second MAC address is different than the first address; and processing the received second frame based on the second MAC address, such that the processing of the second frame is different than the processing of the first frame.

公开(公告)号：US09807794B2

公开(公告)日：2017-10-31

申请号：US14520214

申请日：2014-10-21

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Maarten Menzo Wentink

IPC: H04W74/00 ,  H04W74/08

CPC classification number: H04W74/008 ,  H04W74/08

Abstract: Methods and apparatuses for wireless communication are provided. A method for wireless communication comprises receiving a first physical layer protocol data unit. The method further comprises receiving a second PPDU. The method further comprises updating a value of a response indication deferral counter to a value indicated by the second PPDU when the second PPDU is associated with a same basic service set as the first PPDU. The method further comprises updating the response indication deferral counter to the value indicated by the second PPDU when the second PPDU is associated with a different basic service set than the first PPDU and the indicated value is not less than a current value of the response indication deferral counter. The current value of the response indication deferral corresponds to a value of the response indication deferral counter when the end of the second PPDU is received.