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公开(公告)号：US09148816B2
公开(公告)日：2015-09-29
申请号：US13921860
申请日：2013-06-19
Applicant: QUALCOMM Incorporated
Inventor： Shu Du , Zhanfeng Jia , Chin-Hung Chen , Ning Zhang
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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公开(公告)号：US20150023245A1
公开(公告)日：2015-01-22
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
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.
Abstract translation: 对无线通信描述了方法，系统，设备和装置，其中可以将第一类型的业务从网关接入点（AP）直接发送到站。 发送到站的信标信号作为第一类型的业务的一部分被传输。 第二类型的业务可以经由至少一个中继AP从网关AP发送到站。 第一类型的业务可以包括低吞吐量业务，并且可以通过远程无线电链路（例如，2GHz频带链路或子1GHz频带链路）来传输。 第二类型的业务可以包括高吞吐量业务，并且可以通过至少一个短距离无线电链路（例如，5GHz频带链路）来传送。 网关AP可以直接从站接收低吞吐量业务，并经由至少一个中继AP接收来自站的高吞吐量流量。
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13.发明申请Method And System For Dynamic AMPDU Duration Control In A Wireless Communication System 有权无线通信系统中动态AMPDU持续时间控制的方法与系统公开(公告)号：US20140219110A1
公开(公告)日：2014-08-07
申请号：US13762338
申请日：2013-02-07
Applicant: QUALCOMM INCORPORATED
Inventor： Shu Du , Zhanfeng Jia , Ning Zhang , Chin-Hung Chen , James S. Cho , Rahul Tandra , Qinghai Gao
IPC: H04W24/02
CPC classification number: H04W24/02 , H04B7/0452 , H04L1/0007
Abstract: A method of providing aggregated MAC protocol data unit (AMPDU) duration control in a wireless communication device includes setting an AMPDU duration. Pass/fail statistics are collected for each MPDU of an AMPDU in a time window, W. A packet error rate (PER) difference is calculated between first and last sets of MPDUs for each AMPDU in the window. An average PER difference is calculated across all AMPDUs in the window. When the average PER difference is greater than a first threshold, then the AMPDU duration is decreased. When the difference is less than a second threshold, then the AMPDU duration is increased. When the difference is within the first and the second thresholds, then the method returns to the step of collecting for a next time window. The AMPDU duration can also be adjusted based on detected Doppler and line-of-sight transmissions.
Abstract translation: 在无线通信设备中提供聚合MAC协议数据单元（AMPDU）持续时间控制的方法包括设置AMPDU持续时间。 在时间窗口W中收集AMPDU的每个MPDU的通过/失败统计信息。在窗口中的每个AMPDU的第一组和最后一组MPDU之间计算分组错误率（PER）差异。 在窗口中的所有AMPDU之间计算平均PER差异。 当平均PER差大于第一阈值时，AMPDU持续时间减小。 当差值小于第二阈值时，AMPDU持续时间增加。 当差异在第一和第二阈值内时，该方法返回到下一个时间窗口的收集步骤。 AMPDU持续时间也可以根据检测到的多普勒和视线传输进行调整。
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公开(公告)号：US20170134187A1
公开(公告)日：2017-05-11
申请号：US15260144
申请日：2016-09-08
Applicant: QUALCOMM Incorporated
Inventor： Chin-Hung Chen , Ning Zhang , Youhan Kim
CPC classification number: H04L25/0202 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04B7/0619 , H04B7/0626 , H04L27/2601 , H04W72/0413 , H04W72/042 , H04W84/12
Abstract: A method for sending data includes receiving, at a first station of a plurality of stations, a trigger frame from an access point of a wireless network. The method also includes determining a downlink channel estimation based on the trigger frame and sending the downlink channel estimation to the access point. The method further includes receiving uplink channel data from the access point in response to sending the downlink channel estimation. The method also includes sending data to the access point based on the uplink channel data.
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Patent Agency Ranking
公开(公告)号：US20160149727A1
公开(公告)日：2016-05-26
申请号：US14553854
申请日：2014-11-25
Applicant: QUALCOMM Incorporated
Inventor： Zixia Hu , Kai Shi , Chin-Hung Chen , Ning Zhang
CPC classification number: H04L25/0204 , H04L25/0212 , H04L25/0226
Abstract: A method of determining a channel response of a communications channel. A computing device receives a data packet via the communications channel and generates a first channel estimation based on a first portion of a preamble of the received data packet. The computing device further generates a second channel estimation based on a second portion of the preamble and determines the channel response of the communications channel based, at least in part, on an average of the first and second channel estimations. For example, the first portion of the preamble may correspond with a Long Training Field (LTF), and the second portion of the preamble may correspond with a Very High Throughput Signal B (VHT-SIG-B) field.
Abstract translation: 一种确定通信信道的信道响应的方法。 计算设备经由通信信道接收数据分组，并且基于接收到的数据分组的前导码的第一部分生成第一信道估计。 所述计算设备还基于所述前导码的第二部分生成第二信道估计，并且至少部分地基于所述第一和第二信道估计的平均值来确定所述通信信道的信道响应。 例如，前导码的第一部分可以对应于长训练场（LTF），并且前同步码的第二部分可以对应于极高吞吐量信号B（VHT-SIG-B）字段。
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16.发明申请公开(公告)号：US20160028457A1
公开(公告)日：2016-01-28
申请号：US14871834
申请日：2015-09-30
Applicant: QUALCOMM Incorporated
Inventor： Youhan Kim , Ning Zhang , Chin-Hung Chen
CPC classification number: H04B7/0456 , H03M13/6312 , H04B7/0413 , H04L1/0071 , H04L1/0606 , H04L5/0023 , H04L5/0046 , H04L5/0064 , H04L27/2626 , H04L27/2647
Abstract: A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter can include encoding components for receiving transmit data and generating encoded data. A multiple-input multiple-output (MIMO) stream parser can receive the encoded data and generate a plurality of MIMO streams. A first module parser coupled to a first MIMO stream can generate a first plurality of partial MIMO streams. A first bandwidth module can include a first interleaver that interleaves bits of the first partial MIMO stream and generates first interleaved data. A second bandwidth module can include a second interleaver that interleaves bits of the second partial MIMO stream and generates second interleaved data. A first inverse fast Fourier transform (IFFT) unit can combine and process the first and second interleaved data and generate a first transmission MIMO stream.
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17.发明授权Method and apparatus for coding and interleaving for very high throughput wireless communications 有权用于非常高吞吐量无线通信的编码和交织的方法和装置公开(公告)号：US09178581B2
公开(公告)日：2015-11-03
申请号：US13956254
申请日：2013-07-31
Applicant: QUALCOMM Incorporated
Inventor： Youhan Kim , Ning Zhang , Chin-Hung Chen
CPC classification number: H04B7/0456 , H03M13/6312 , H04B7/0413 , H04L1/0071 , H04L1/0606 , H04L5/0023 , H04L5/0046 , H04L5/0064 , H04L27/2626 , H04L27/2647
Abstract: A wireless transmitter can include a plurality of bandwidth modules, each bandwidth module processing data based on a predetermined frequency band. In one embodiment, such a wireless transmitter can include encoding components for receiving transmit data and generating encoded data. A multiple-input multiple-output (MIMO) stream parser can receive the encoded data and generate a plurality of MIMO streams. A first module parser coupled to a first MIMO stream can generate a first plurality of partial MIMO streams. A first bandwidth module can include a first interleaver that interleaves bits of the first partial MIMO stream and generates first interleaved data. A second bandwidth module can include a second interleaver that interleaves bits of the second partial MIMO stream and generates second interleaved data. A first inverse fast Fourier transform (IFFT) unit can combine and process the first and second interleaved data and generate a first transmission MIMO stream.
Abstract translation: 无线发射机可以包括多个带宽模块，每个带宽模块基于预定频带处理数据。 在一个实施例中，这样的无线发射机可以包括用于接收发送数据和生成编码数据的编码组件。 多输入多输出（MIMO）流解析器可以接收编码数据并产生多个MIMO流。 耦合到第一MIMO流的第一模块解析器可以生成第一多个部分MIMO流。 第一带宽模块可以包括交织第一部分MIMO流的比特并产生第一交织数据的第一交织器。 第二带宽模块可以包括交织第二部分MIMO流的比特并产生第二交织数据的第二交织器。 第一逆快速傅里叶变换（IFFT）单元可以组合并处理第一和第二交错数据并生成第一传输MIMO流。
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18.发明授权Method and system for dynamic AMPDU duration control in a wireless communication system 有权无线通信系统中动态AMPDU持续时间控制的方法和系统公开(公告)号：US09055458B2
公开(公告)日：2015-06-09
申请号：US13762338
申请日：2013-02-07
Applicant: QUALCOMM Incorporated
Inventor： Shu Du , Zhanfeng Jia , Ning Zhang , Chin-Hung Chen , James S. Cho , Rahul Tandra , Qinghai Gao
CPC classification number: H04W24/02 , H04B7/0452 , H04L1/0007
Abstract: A method of providing aggregated MAC protocol data unit (AMPDU) duration control in a wireless communication device includes setting an AMPDU duration. Pass/fail statistics are collected for each MPDU of an AMPDU in a time window, W. A packet error rate (PER) difference is calculated between first and last sets of MPDUs for each AMPDU in the window. An average PER difference is calculated across all AMPDUs in the window. When the average PER difference is greater than a first threshold, then the AMPDU duration is decreased. When the difference is less than a second threshold, then the AMPDU duration is increased. When the difference is within the first and the second thresholds, then the method returns to the step of collecting for a next time window. The AMPDU duration can also be adjusted based on detected Doppler and line-of-sight transmissions.
Abstract translation: 在无线通信设备中提供聚合MAC协议数据单元（AMPDU）持续时间控制的方法包括设置AMPDU持续时间。 在时间窗口W中收集AMPDU的每个MPDU的通过/失败统计信息。在窗口中的每个AMPDU的第一组和最后一组MPDU之间计算分组错误率（PER）差异。 在窗口中的所有AMPDU之间计算平均PER差异。 当平均PER差大于第一阈值时，AMPDU持续时间减小。 当差值小于第二阈值时，AMPDU持续时间增加。 当差异在第一和第二阈值内时，该方法返回到下一个时间窗口的收集步骤。 AMPDU持续时间也可以根据检测到的多普勒和视线传输进行调整。
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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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