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公开(公告)号:US20210345239A1
公开(公告)日:2021-11-04
申请号:US17204530
申请日:2021-03-17
Applicant: QUALCOMM Incorporated
Inventor: Nathaniel David HOUGHTON , Xiaolong HUANG , Ruiqing YE
Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communication. In some implementations, a wireless communication device obtains one or more indications that a wireless station (STA) will enter a power-save mode, selects, for each respective STA of a plurality of STAs, a duration associated with the respective STA entering the power-save mode, and adjusts one or more parameters of a multi-user channel access mechanism for transmitting uplink data associated with the selected duration. In some other implementations, a wireless communication device outputs one or more indications that the device will enter a power-save mode, outputs or obtains data at each of a plurality of first instances, enters the power-save mode at each of a plurality of second instances, and obtains a beacon indicating one or more parameters to be used for a multi-user channel access mechanism for transmitting uplink data.
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公开(公告)号:US20240163911A1
公开(公告)日:2024-05-16
申请号:US18382639
申请日:2023-10-23
Applicant: QUALCOMM Incorporated
Inventor: Nathaniel David HOUGHTON , Xiaolong Huang , Naveen Gangadharan
IPC: H04W72/52 , H04W72/1268 , H04W72/23
CPC classification number: H04W72/52 , H04W72/1268 , H04W72/23 , H04W84/12
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for adjusting a packet duration for triggered uplink (UL) transmissions to an access point (AP) from one or more stations (STAs). In one aspect, the AP may estimate an amount of data that a STA has queued for UL transmission and select the packet duration based on the estimated amount of queued UL data. The AP may transmit a trigger frame that solicits UL data from the STA and indicates the selected packet duration. In response, the AP may receive an UL packet from the STA and determine an amount of UL data queued in the STA based on the UL packet. In some implementations, the AP may selectively adjust the packet duration for UL transmissions based on the UL packet, the determined amount of UL data queued in the STA, or both.
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公开(公告)号:US20230337059A1
公开(公告)日:2023-10-19
申请号:US17722564
申请日:2022-04-18
Applicant: QUALCOMM Incorporated
Inventor: Ahmed Ragab ELSHERIF , Nicholas KUCHAREWSKI , Simon Jan BRAND , Srinivas KATAR , Xiaolong HUANG , Sandip HOMCHAUDHURI , Nathaniel David HOUGHTON , Aravind SEETHARAMAN
IPC: H04W28/10 , H04W28/24 , H04B7/0452
CPC classification number: H04W28/10 , H04W28/24 , H04B7/0452 , H04W84/12
Abstract: Systems and methods for selectively enabling multi-user (MU) communications are disclosed. In some implementations, an access point (AP) obtains packets associated with a traffic flow, and obtains at least one of service-level agreement (SLA) parameters associated with the traffic flow, attributes of the traffic flow, or network parameters associated with a basic service set (BSS) that includes the AP. The AP provides an indication of whether the traffic flow is suitable for transmission as a single-user (SU) multiple-input multiple output (MIMO) (SU-MIMO) communication, as an MU-MIMO communication, as an orthogonal frequency division multiple access (OFDMA) communication, or as a partial bandwidth (BW) MU-MIMO communication to a WLAN subsystem of the AP, the indication being based on one or more of the SLA parameters, the traffic flow attributes, or the network parameters. The AP initiates transmission of the one or more packets based on the indication.
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公开(公告)号:US20170373789A1
公开(公告)日:2017-12-28
申请号:US15594430
申请日:2017-05-12
Applicant: QUALCOMM Incorporated
Inventor: Xiaolong HUANG , Hao ZHU , Srinivas KATAR , Naveen GANGADHARAN , Madhan JAGANATHAN , Nathaniel David HOUGHTON , Sabita NAHATA , Raja BANERJEA , Alireza RAISSINIA , James CHO , Chao CHENG
IPC: H04L1/00 , H04B7/06 , H04B1/38 , H04L27/26 , H04B7/0452
CPC classification number: H04L1/0003 , H04B1/38 , H04B7/0452 , H04B7/0632 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L27/2601
Abstract: A device includes a memory, a processor, and a transceiver. The memory is configured to store capability data corresponding to a set of stations. The processor is configured to select, based at least in part on the capability data, one of a multi-user multiple-input multiple-output (MU-MIMO) mode or an orthogonal frequency-division multiple access (OFDMA) mode for wireless communication with a subset of the set of stations. The transceiver is configured to wirelessly communicate with the subset in the selected one of the MU-MIMO mode or the OFDMA mode.
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公开(公告)号:US20170170884A1
公开(公告)日:2017-06-15
申请号:US15372267
申请日:2016-12-07
Applicant: QUALCOMM Incorporated
Inventor: Ahmed Ragab ELSHERIF , Nathaniel David HOUGHTON , Ehab TAHIR
CPC classification number: H04B7/0452 , H04B7/0689 , H04L1/0003 , H04L1/0015
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may include a processing system configured to determine whether to initiate scheduler probing based on a condition and to perform scheduler probing by determining whether to transmit in SU mode and by determining a set of transmission parameters. The apparatus may include an interface configured to, when the scheduler probing is initiated, output a frame for transmission based on the set of transmission parameters.
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公开(公告)号:US20220369329A1
公开(公告)日:2022-11-17
申请号:US17751991
申请日:2022-05-24
Applicant: QUALCOMM Incorporated
Inventor: Nathaniel David HOUGHTON , Xiaolong HUANG , Naveen GANGADHARAN
IPC: H04W72/12
Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for adjusting a packet duration for triggered uplink (UL) transmissions to an access point (AP) from one or more stations (STAs). In one aspect, the AP may estimate an amount of data that a STA has queued for UL transmission and select the packet duration based on the estimated amount of queued UL data. The AP may transmit a trigger frame that solicits UL data from the STA and indicates the selected packet duration. In response, the AP may receive an UL packet from the STA and determine an amount of UL data queued in the STA based on the UL packet. In some implementations, the AP may selectively adjust the packet duration for UL transmissions based on the UL packet, the determined amount of UL data queued in the STA, or both.
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公开(公告)号:US20210099212A1
公开(公告)日:2021-04-01
申请号:US16587450
申请日:2019-09-30
Applicant: QUALCOMM Incorporated
Inventor: Xiaolong HUANG , Nathaniel David HOUGHTON , Ahmed Ragab ELSHERIF , Madhavan NAIR , Chao ZOU
IPC: H04B7/06 , H04B7/0452 , H04L5/00 , H04B7/0426
Abstract: This disclosure provides methods, apparatuses, wireless nodes and computer-readable mediums for wireless communications. In one aspect, a method is provide for dynamic selection and triggering of uplink (UL) transmission (TX) modes. A method that may be performed by an access point (AP) includes dynamically selecting an UL single user (SU) TX mode, an UL multiple user (MU) multiple input multiple output (MIMO) TX mode, or an UL orthogonal frequency division multiple access (OFDMA) TX mode. The AP communicates with one or more stations (STAs) based on the dynamically selected UL TX mode.
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公开(公告)号:US20190208041A1
公开(公告)日:2019-07-04
申请号:US15862505
申请日:2018-01-04
Applicant: QUALCOMM Incorporated
Inventor: Madhan JAGANATHAN , Xiaolong HUANG , Srinivas KATAR , Nathaniel David HOUGHTON , Madhavan NAIR , Hao ZHU , Chao ZOU
IPC: H04L29/06 , H04L12/801 , H04L12/853 , H04L1/18
CPC classification number: H04L69/163 , H04L1/1854 , H04L47/193 , H04L47/2416 , H04L2001/125
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a plurality of TCP ACKs, and at least one of TCP data or UDP data for a multi-user transmission to a set of STAs. The apparatus may allocate the plurality of TCP ACKs to a PPDU before allocating the at least one of the TCP data and the UDP data to the PPDU. In certain aspects, the plurality of TCP ACKs may be frequency division multiplexed in the PPDU. In certain other aspects, the apparatus may transmit, to the set of STAs, the multi-user transmission including at least the plurality of frequency division multiplexed TCP ACKs.
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公开(公告)号:US20170118631A1
公开(公告)日:2017-04-27
申请号:US14920651
申请日:2015-10-22
Applicant: QUALCOMM INCORPORATED
Inventor: Chao ZOU , Guido Robert FREDERIKS , Srinivas KATAR , Xiaolong HUANG , Qinghai GAO , Naveen GANGADHARAN , Nathaniel David HOUGHTON , BadriSrinivasan SAMPATHKUMAR , James Simon CHO
IPC: H04W8/24 , H04L12/26 , H04L12/861
CPC classification number: H04W8/245 , G06F13/00 , H04L43/0864 , H04L47/56 , H04L47/58 , H04L47/621 , H04L47/622 , H04L49/901 , H04W28/02 , H04W88/08
Abstract: Aspects of the present disclosure relate to a pre-fetching architecture and scheduler for multi-station APs. An example method generally includes fetching, from a plurality of host buffers, descriptive information for a set of packets based, at least in part, on an amount of descriptive information already cached for transmission to one or more target devices; using the fetched descriptive information to obtain the set of packets; and transmitting the set of packets to the one or more target devices.
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