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公开(公告)号：US11811525B2
公开(公告)日：2023-11-07
申请号：US17251572
申请日：2018-07-24
Applicant: QUALCOMM Incorporated
Inventor： Sandip Homchaudhuri , Pavankumar Veerashetty , Vincent Knowles Jones, IV , Srinivas Katar , Jian Tao , Rahul Jammula
CPC classification number: H04L1/0003 , H04L47/25 , H04W28/0289 , H04W28/0273
Abstract: The present disclosure provides techniques for rate adaptation under congestion and latency constraints. The approaches described herein focus on aspects of latency, reliability, and power consumption instead of the traditional aspect of throughput. In an example, a method for rate adaptation is disclosed. The method may include determining whether to transmit a new packet or a retry packet. The method may also include reducing a maximum rate for a rate search in response to determining to transmit the retry packet. The method may further include transmitting the retry packet based on the reduced maximum rate.
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公开(公告)号：US11778645B2
公开(公告)日：2023-10-03
申请号：US17225086
申请日：2021-04-07
Applicant: QUALCOMM Incorporated
Inventor： Abhishek Pramod Patil , George Cherian , Alfred Asterjadhi , Sai Yiu Duncan Ho , Yanjun Sun , Sandip Homchaudhuri , Yongchun Xiao
IPC: H04W72/53 , H04W72/0446 , H04W40/24 , H04W72/27 , H04W92/20
CPC classification number: H04W72/53 , H04W40/244 , H04W72/0446 , H04W72/27 , H04W92/20
Abstract: An access point (AP) of an AP multi-link device (MLD) is associated with a first communication link, and one or more secondary APs of the AP MLD are associated with one or more respective secondary communication links of the AP MLD. The first AP of the AP MLD generates a frame including a first change sequence field, one or more secondary change sequence fields, and a critical update flag subfield. The first change sequence field carries a value of the most-recent critical update for the first AP. The one or more secondary change sequence fields carry values of the most-recent critical updates for the one or more respective secondary APs. The critical update flag subfield carries an indication of a change in value of at least one of the secondary change sequence fields. The first AP transmits the frame over the first communication link of the AP MLD.
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公开(公告)号：US20220337338A1
公开(公告)日：2022-10-20
申请号：US17233341
申请日：2021-04-16
Applicant: QUALCOMM Incorporated
Inventor： Sandip Homchaudhuri , Srinivas Katar , Chao Zou , Alireza Raissinia , Lei Li , Deepak Nagawade
Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media that support station performance enhancement with multi-link operations. An example method may include determining at least one network metric related to at least one link between a station (STA) and access points (APs) and determining at least one connection parameter related to at least one application operating on the STA. The method may include selecting a mode of multi-link operations based at least in part on the network metric and the connection parameter, wherein the mode of multi-link operations comprises one or more of: a multi-link mode in which the STA operates over a first link and a second link at a same time or a single-link mode in which the STA operates over one of the first or second links and communicating with the one or more APs according to the selected mode.
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公开(公告)号：US10952139B2
公开(公告)日：2021-03-16
申请号：US15470645
申请日：2017-03-27
Applicant: QUALCOMM Incorporated
Inventor： Alfred Asterjadhi , George Cherian , Simone Merlin , Sandip Homchaudhuri , Zhanfeng Jia , Sumeet Kumar , Pradeep Kumar Yenganti
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to receive information indicating a wake time period from a STA and use the received wake time period to schedule communication with the STA. The apparatus may use the received wake time period to determine a target transmission time for transmitting a trigger frame to the STA. The apparatus may transmit a beacon to the STA and then transmit the trigger frame to the STA at the target transmission time following the beacon. The apparatus may also indicate an offset from the beacon that the apparatus will use for communication with the STA based on the wake time period of the STA.
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公开(公告)号：US20200351789A1
公开(公告)日：2020-11-05
申请号：US16824505
申请日：2020-03-19
Applicant: QUALCOMM INCORPORATED
Inventor： Sandip Homchaudhuri , Dinesh Davuluru , Vincent Knowles Jones, IV , Ravi Konda , Chun Woo Lee
IPC: H04W52/02 , H04L27/26 , H04L12/26 , H04L12/801
Abstract: Methods, systems, and devices for wireless communications are described. The method may include determining a signal strength indication from a field of a management frame associated with one or more information elements, comparing the signal strength indication to a first threshold and a second threshold, and performing a low-power operation for at least a remaining portion of the management frame based on determining that the signal strength indication is: greater than the second threshold, or less than the first threshold, or greater than the second threshold and less than the first threshold.
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Patent Agency Ranking
公开(公告)号：US10375638B1
公开(公告)日：2019-08-06
申请号：US15956683
申请日：2018-04-18
Applicant: QUALCOMM Incorporated
Inventor： Sandip Homchaudhuri , Pradeep Kumar Yenganti
IPC: H04W52/02 , H04B7/06 , H04B7/0413
Abstract: Certain aspects relate to methods, apparatuses, computer readable mediums and access terminals that effectively (1) detect leaky or rogue access points and (2) take one or more actions based on such detection.
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公开(公告)号：US20180220372A1
公开(公告)日：2018-08-02
申请号：US15885003
申请日：2018-01-31
Applicant: QUALCOMM Incorporated
Inventor： Sandip Homchaudhuri , Pradeep Kumar Yenganti , Bhasker Neti
Abstract: Methods, systems, and devices for wireless communication are described. A station may be communicating with an access point during a first active communication period. The communication may be performed in a first power mode. The station may switch to a second power mode to transition to a sleep period. The station may determine, based on traffic indicator metric(s), whether to perform a speculative wakeup and switch to the first power mode at the end of the sleep period.
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公开(公告)号：US09974013B2
公开(公告)日：2018-05-15
申请号：US15131739
申请日：2016-04-18
Applicant: QUALCOMM Incorporated
Inventor： Sandip Homchaudhuri , Shu Du , Sumeet Kumar , Sohani Ganesh Rao , Paul Husted
CPC classification number: H04W48/20 , H04L5/0055 , H04W36/14 , H04W40/244 , H04W84/12 , H04W88/08
Abstract: Methods and devices are described for wireless communications associated with a multidimensional algorithm for roaming. In one aspect, an access point (or like device) transmits a beacon signal. The access point receives, from a station in receipt of the beacon signal, a probe signal including at least one metric. The access point transmits a response signal based at least in part on the received probe signal, the response signal including information associated with the at least one metric.
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公开(公告)号：US09971014B2
公开(公告)日：2018-05-15
申请号：US14267717
申请日：2014-05-01
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxin Zhang , Sandip Homchaudhuri , Carlos Horacio Aldana
CPC classification number: G01S5/0236 , G01S5/0226 , H04W56/002 , H04W64/00
Abstract: Methods, systems, and devices are described for a wireless positioning framework in which an access point (AP) broadcasts a message within a beacon interval that identifies a transmission schedule for a set of stations. The message may include an information element identifying the stations in the set. The set may be determined based on station clock drifts and/or a ranging accuracy sought by the AP. The AP may also provide a station identifier, and frame spacing and delay parameters, which may be used to determine a distinct backoff for each station. Using distinct backoffs allow the stations to avoid collisions when sending the transmissions. The AP may receive the transmissions according to the identified schedule and may determine a range (e.g., round-trip time) for each station in the set based at least on a time at which the respective transmission is received.
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公开(公告)号：US09560594B2
公开(公告)日：2017-01-31
申请号：US14277623
申请日：2014-05-14
Applicant: QUALCOMM Incorporated
Inventor： James Simon Cho , Arunkumar Jayaraman , Guido Robert Frederiks , Zhanfeng Jia , Shu Du , Alireza Raissinia , Jibing Wang , Sandip Homchaudhuri
CPC classification number: H04W52/0238 , H04L1/08 , H04W52/0206 , H04W52/0216 , H04W52/0235 , H04W72/02 , H04W84/12 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/22
Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.
Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备，通过AP和站之间的有效传输和信息确认。 在站点确定进入节电模式并进入网络睡眠模式之间的时间可以通过AP向MPI发送确认之后的MPDU向连续的SIFS的站传输而减少 站点的PS-Poll帧。 由站点进入省电模式的时间也可以通过A-MPDU的传输来减少，其中A-MPDU的最后一个MPDU被清除以指示不发送附加数据。 在没有来自站的确认的情况下，AP可以阻止对站的MPDU的重传，以进一步提高效率。
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