公开(公告)号：US20190215884A1

公开(公告)日：2019-07-11

申请号：US16234314

申请日：2018-12-27

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Youhan Kim ,  George Cherian

IPC: H04W76/15 ,  H04W52/02 ,  H04W76/40

CPC classification number: H04W76/15 ,  H04W52/0216 ,  H04W52/0219 ,  H04W76/40 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques relate to improved methods, systems, devices, or apparatuses that support a 20 MHz station (STA) parked on a secondary channel. Without the described techniques, mechanisms to support secondary channel operation may be unable to receive management frames or broadcast traffic from an access point (AP), which may cause the STA to lose synchronization with the AP, miss a channel change or other critical announcement from the AP, etc. Considerations for providing such information to STAs parked on a secondary channel are discussed. In some examples, an AP may restrict resource unit allocation to the secondary channel on which the STA is parked. In some cases, a trigger-based random access mechanism may utilize aspects of the present disclosure to limit access to certain resource units to STAs on a given secondary channel.

公开(公告)号：US20190208470A1

公开(公告)日：2019-07-04

申请号：US16239479

申请日：2019-01-03

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  George Cherian ,  Bin Tian ,  Stephen Jay Shellhammer

IPC: H04W52/02 ,  H04L29/06 ,  H04W72/04

CPC classification number: H04W52/0229 ,  H04L69/22 ,  H04W72/0446 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for establishing communications with one or more devices. In one aspect, a first device generates a wake-up radio (WUR) frame, the WUR frame including a media access control (MAC) header and a frame check sequence (FCS) having a cyclic redundancy check (CRC) or a message integrity check (MIC). The first device may determine the FCS based, at least in part, on the MAC header and basic service set identifier (BSSID) information associated with the first device. The first device may output the WUR frame for transmission to one or more devices. A second device may receive the WUR frame from the first device and determine whether the WUR frame is directed to the second device based, at least in part, on comparing the FCS of the WUR frame with a calculated FCS.

公开(公告)号：US10285187B2

公开(公告)日：2019-05-07

申请号：US15145729

申请日：2016-05-03

Applicant: QUALCOMM Incorporated

Inventor： Gang Ding ,  Simone Merlin ,  Alfred Asterjadhi ,  George Cherian ,  Gwendolyn Denise Barriac ,  Bin Tian

IPC: H04W24/08 ,  H04W72/12 ,  H04W74/04 ,  H04W52/02

Abstract: Systems and methods are disclosed that may provide for selective multi-user uplink (UL) of data for wireless devices. For example, a first wireless device may request permission to initiate a UL transmission to a second wireless device. The first wireless device may then receive, from the second wireless device, permission to initiate the UL transmission according to a multi-user (MU) UL protocol, determine a threshold duration for the UL transmission, and transmit UL data to the second wireless device according to the MU UL protocol and the threshold duration.

公开(公告)号：US10225866B2

公开(公告)日：2019-03-05

申请号：US15182536

申请日：2016-06-14

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Alfred Asterjadhi ,  Simone Merlin ,  George Cherian

IPC: H04W4/00 ,  H04W74/08 ,  H04L27/26 ,  H04L5/00 ,  H04W72/00

Abstract: Systems, methods, and apparatuses for signaling and generating an enhanced random access frame in a wireless network are provided. One aspect of this disclosure provides a method of wireless communication. The method includes receiving, at a first device, a first frame from a second device indicating one or more frequency bandwidths available for random access by the first device. The method further includes transmitting, at the first device, a second frame to the second device in response to the first frame, the second frame comprising an indication of an identifier of the first device and indicating a selection of at least one frequency bandwidth of the one or more frequency bandwidths, the second frame not including a medium access control (MAC) payload data portion.

公开(公告)号：US20190037058A1

公开(公告)日：2019-01-31

申请号：US16152309

申请日：2018-10-04

Applicant: QUALCOMM Incorporated

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

IPC: H04L29/08

Abstract: Methods, devices, and computer program products for traffic information signaling in a wireless communications network are disclosed. In one aspect, a method of wireless communication network is disclosed. The method includes selecting, from a variable number of control fields, one or more control fields for inclusion in a frame. The method further includes generating the frame comprising the selected number of control fields, each control field comprising an end of control field, the end of control field storing an indicator indicative of an end of the selected number of control fields or a presence of another control field in the frame. The method further includes transmitting the frame.

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：US10159093B2

公开(公告)日：2018-12-18

申请号：US15244537

申请日：2016-08-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: The present disclosure provides techniques for configuring the utilization of request-to-send/clear-to-send (RTS/CTS) protocol procedures based on varying conditions at the STA. For example, an AP may identify one or more conditions, when satisfied, may trigger the STA to either enable or disable uplink (UL) transmissions associated with a RTS/CTS protocol procedure. In some aspects, an AP may determine a transmit opportunity (TXOP) threshold for an STA and may determine whether to broadcast a message having the TXOP threshold to multiple STAs including the STA or unicast the message to the STA. An STA may receive a message from an AP having a TXOP threshold and may replace, based on an indication in the received message, a current TXOP threshold in the STA with the TXOP threshold in the received message. The STA may transmit an UL RTS frame in response to a determination that a planned TXOP duration satisfies the TXOP threshold.

公开(公告)号：US10158474B2

公开(公告)日：2018-12-18

申请号：US15145756

申请日：2016-05-03

Applicant: QUALCOMM Incorporated

Inventor： George Cherian ,  Simone Merlin ,  Gwendolyn Denise Barriac ,  Alfred Asterjadhi

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0452

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first user terminal. The first user terminal receives, on a first DL communication channel of multiple DL communication channels, a DL MU PPDU includes MPDUs transmitted from an access point to multiple user terminals including the first user terminal on the multiple DL communication channels. The first user terminal obtains an UL channel indication and a BA indication. The first user terminal transmits, on a first UL communication channel of multiple UL communication channels, a first BA to the access point based on the UL channel indication and the BA indication simultaneously or concurrently with a BA transmission from the rest of the multiple user terminals to the access point on the rest of the multiple UL communication channels. The first BA acknowledges one or more of the MPDUs.

公开(公告)号：US10111132B2

公开(公告)日：2018-10-23

申请号：US15052827

申请日：2016-02-24

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Youhan Kim ,  Bin Tian ,  George Cherian ,  Alfred Asterjadhi ,  Sameer Vermani ,  Gwendolyn Denise Barriac

IPC: H04W4/00 ,  H04W28/06 ,  H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04B7/06 ,  H04B7/0452

Abstract: Methods and apparatus for channel state information feedback are provided. In various aspects, a message is transmitted requesting channel feedback information. In some aspects, a first portion of the message is transmitted according to a first or second, and contains first information intended for a first or second set of wireless communication devices compatible with the first or second format respectively. In some aspects, a second portion of the first message is transmitted according to the second format, and contains second information intended for the second set of wireless communication devices compatible with the second format. In some aspects, the second message comprises a number of tones or spatial streams for which channel feedback information is requested, or other channel feedback information parameters.

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.