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公开(公告)号：US20140341099A1
公开(公告)日：2014-11-20
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.
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公开(公告)号：US20140269655A1
公开(公告)日：2014-09-18
申请号：US13921860
申请日：2013-06-19
Applicant: QUALCOMM Incorporated
Inventor： Shu Du , Zhanfeng Jia , Chin-Hung Chen , Ning Zhang, IV
IPC: H04W28/02
CPC classification number: H04W28/0231 , H04L1/0002 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0016 , H04L5/0023 , H04L5/0046 , H04L5/006
Abstract: A wireless device is configured to switch data rates to account for temporary channel conditions or device configuration errors. Pre-selected data rates, more likely to achieve maximum goodput, are stored in a data rate table. The data rate table contains candidate data rates for each pre-selected data rate in the data rate table. When probe transmissions using the preselected data rates fail, dynamic rate probing is utilized to determine a possible cause and extent of the problem. The dynamic rate probing scheme transmits probe transmissions using the candidate data rates and tracks success or failure of these probe transmissions. An analysis of the probe transmissions is used to indicate a possible cause and/or extent of the problematic condition and to determine whether there is a need to reconfigure the data rates in the data rate table.
Abstract translation: 无线设备被配置为切换数据速率以考虑临时信道状况或设备配置错误。 预先选择的数据速率，更有可能实现最大的吞吐量，被存储在数据速率表中。 数据速率表包含数据速率表中每个预先选择的数据速率的候选数据速率。 当使用预选数据速率的探头传输失败时，利用动态速率探测来确定问题的可能原因和程度。 动态速率探测方案使用候选数据速率传输探测传输并跟踪这些探测传输的成功或失败。 探针传输的分析用于指示问题状况的可能的原因和/或程度，并且确定是否需要重新配置数据速率表中的数据速率。
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23.发明申请SYSTEMS AND METHODS FOR STATISTICALLY PROFILING CHANNELS IN MIMO COMMUNICATIONS 有权MIMO通信中统计分析通道的系统和方法公开(公告)号：US20140269358A1
公开(公告)日：2014-09-18
申请号：US13829272
申请日：2013-03-14
Applicant: QUALCOMM INCORPORATED
Inventor： Qinghai Gao , Balaji Srinivasan Babu , Shu Du
CPC classification number: H04L43/0888 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/0689
Abstract: Systems and methods are disclosed for generating a statistical profile of a MIMO channel. Packets of information may be transmitted over an interval of time to a plurality of stations using a plurality of MIMO modes. Each packet may be binned and a goodput value corresponding to the bin, the station and the MIMO mode may be determined stored.
Abstract translation: 公开了用于生成MIMO信道的统计简档的系统和方法。 信息包可以使用多个MIMO模式通过时间间隔传送到多个站。 可以对每个分组进行分组，并且可以确定存储对应于bin，站和MIMO模式的有效输入值。
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24.发明申请Method And System for Unified Rate Adaptation For SU-BF And MU-MIMO Operation 有权用于SU-BF和MU-MIMO操作的统一速率适配方法和系统公开(公告)号：US20140160947A1
公开(公告)日：2014-06-12
申请号：US13707511
申请日：2012-12-06
Applicant: QUALCOMM INCORPORATED
Inventor： Shu Du , Zhanfeng Jia , Ning Zhang , Guido Robert Frederiks , Vincent Knowles Jones, IV , Qinghai Gao
IPC: H04W24/02
CPC classification number: H04W24/02 , H04B7/0452 , H04B7/0617 , H04B7/0626 , H04J9/00 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0026 , H04L1/06 , H04L1/203 , H04W28/06 , Y02D50/10
Abstract: A method of providing rate adaptation in a multi-user wireless communication system including single-user beamforming (SU-BF) and multi-user multiple-input multiple-output (MU-MIMO) is described. In this method, a master rate, which is a modulation and coding scheme (MCS) for the SU-BF, is determined. An MCS for each transmit mode is derived from the master rate using a rate mapping. Using the results from the mapping, the master rate, instead of the MCS for each transmit mode, is tracked. In one embodiment, a mapping calibration is periodically performed.
Abstract translation: 描述了在包括单用户波束成形（SU-BF）和多用户多输入多输出（MU-MIMO）的多用户无线通信系统中提供速率适配的方法。 在该方法中，确定作为SU-BF的调制和编码方案（MCS）的主速率。 使用速率映射从主速率导出每个发送模式的MCS。 使用映射的结果，跟踪每个传输模式的主速率而不是MCS。 在一个实施例中，定期执行映射校准。
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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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Patent Agency Ranking
公开(公告)号：US09749874B2
公开(公告)日：2017-08-29
申请号：US13943872
申请日：2013-07-17
Applicant: QUALCOMM Incorporated
Inventor： Shu Du , Ning Zhang , Zhen Xie , James Simon Cho , Chin-Hung Chen , Kai Shi
IPC: H04W16/26 , H04W76/02 , H04L12/725 , H04L12/851 , H04W28/02 , H04W88/10 , H04W84/04 , H04W84/12
CPC classification number: H04W16/26 , H04L45/304 , H04L47/24 , H04W28/0205 , H04W76/15 , H04W84/047 , H04W84/12 , H04W88/10
Abstract: Methods, systems, devices, and apparatuses are described for wireless communications in which first type of traffic may be transmitted from a gateway access point (AP) directly to a station. Beacon signals transmitted to the station are transmitted as part of the first type of traffic. A second type of traffic may be transmitted from the gateway AP to the station via at least one relay AP. The first type of traffic may include low-throughput traffic and may be transmitted over a long-range radio link (e.g., 2 GHz band link or sub-1 GHz band link). The second type of traffic may include high-throughput traffic and may be transmitted over at least one short-range radio link (e.g., 5 GHz band link). The gateway AP may receive low-throughput traffic directly from the station and high-throughput traffic from the station via the at least one relay AP.
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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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28.发明授权Systems and methods for seamless data stream transfer during band switch between wireless stations 有权无线站之间频段切换期间无缝数据流传输的系统和方法公开(公告)号：US09420490B2
公开(公告)日：2016-08-16
申请号：US13791786
申请日：2013-03-08
Applicant: QUALCOMM Incorporated
Inventor： Zhanfeng Jia , Shu Du , Sandip HomChaudhuri
IPC: H04W28/04 , H04W28/02 , H04B7/02 , H04L1/04 , H04L12/893 , H04L12/801 , H04L5/00 , H04W88/06 , H04L12/707 , H04W40/12
CPC classification number: H04L5/0055 , H04B7/02 , H04B7/022 , H04L1/04 , H04L1/1835 , H04L5/001 , H04L5/0037 , H04L45/24 , H04L47/34 , H04L47/40 , H04W28/0252 , H04W28/04 , H04W40/125 , H04W88/06
Abstract: One innovation includes an apparatus, for wirelessly communicating with a communication system via a first wireless channel and a second wireless channel, including a memory unit that is configured to store a first data packet and a second data packet, the first data packet and the second data packet have consecutive sequence numbers. The apparatus further includes a processor configured to retrieve the first data packet and the second data packet from the memory unit, a transceiver that is configured to transmit the first data packet to the communication system via the first channel, to receive a first acknowledgement from the communication system and to transmit the second data packet to the communication system via the second channel after the processor detects that the first acknowledgement comprises a positive acknowledgement of the first reception information.
Abstract translation: 一个创新包括一种用于经由第一无线信道和第二无线信道与通信系统进行无线通信的装置，包括被配置为存储第一数据分组和第二数据分组的存储器单元，第一数据分组和第二数据分组 数据包具有连续的序列号。 该装置还包括处理器，其被配置为从存储器单元检索第一数据分组和第二数据分组;收发器，被配置为经由第一信道将第一数据分组发送到通信系统，以从第一信道接收第一数据分组 通信系统，并且在处理器检测到第一确认包括第一接收信息的肯定确认之后，经由第二信道将第二数据分组发送到通信系统。
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公开(公告)号：US20160234770A1
公开(公告)日：2016-08-11
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.
Abstract translation: 描述了与用于漫游的多维算法相关联的无线通信的方法和设备。 在一个方面，接入点（或类似设备）发送信标信号。 接入点从接收到信标信号的站接收包括至少一个度量的探测信号。 所述接入点至少部分地基于所接收的探测信号发送响应信号，所述响应信号包括与所述至少一个度量相关联的信息。
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公开(公告)号：US09363755B2
公开(公告)日：2016-06-07
申请号：US13899521
申请日：2013-05-21
Applicant: QUALCOMM Incorporated
Inventor： Sarvesh Shrivastava , Sandip Homchaudhuri , Shu Du , Zhanfeng Jia , Veerendra Bhora
CPC classification number: H04W52/0258 , H04W52/0225 , H04W52/0229 , H04W56/00 , H04W76/28 , Y02D70/122 , Y02D70/142 , Y02D70/144
Abstract: Various aspects of apparatus for accessing a network through a wireless access point and methods of power savings for such apparatus include autonomously alternating between a listen state and the sleep state during a time period in which no data is detected from the remote apparatus, and progressively increase the sleep state interval during the time period for at least a portion of the time period.
Abstract translation: 通过无线接入点访问网络的装置的各个方面以及这种装置的功率节省方法包括在没有从远程装置检测到数据的时间段期间自主地在收听状态和休眠状态之间交替，并逐渐增加 在该时间段内的至少一部分时间段的睡眠状态间隔。
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