Power control for wireless LAN stations

    公开(公告)号:US20150230187A1

    公开(公告)日:2015-08-13

    申请号:US14690656

    申请日:2015-04-20

    Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.

    Post-deployment calibration of wireless base stations for wireless position determination
    4.
    发明授权
    Post-deployment calibration of wireless base stations for wireless position determination 有权
    无线基站的部署后校准用于无线位置确定

    公开(公告)号:US08831594B2

    公开(公告)日:2014-09-09

    申请号:US13671367

    申请日:2012-11-07

    CPC classification number: H04W24/04 G01S5/021 G01S5/0242

    Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.

    Abstract translation: 方法和装置旨在校准错误配置的无线接入点。 一种方法可以包括接收移动台的位置和从在移动台和多个无线接入点之间交换的分组导出的无线信号模型测量,接收多个无线接入点的位置和/或身份 用于确定移动台的位置,将移动站的位置与无线信号模型测量进行比较,以及基于比较来识别错误配置的无线接入点。 另一种方法可以包括接收与多个无线接入点相关联的位置,基于无线信号模型确定移动台的位置,将移动台的位置与无线信号模型与与多个无线接入相关联的位置进行比较 接入点,以及确定至少一个无线接入点是否配置错误。

    Post-deployment calibration for wireless position determination
    5.
    发明授权
    Post-deployment calibration for wireless position determination 有权
    无线位置确定后的部署后校准

    公开(公告)号:US09002349B2

    公开(公告)日:2015-04-07

    申请号:US14027024

    申请日:2013-09-13

    CPC classification number: H04W24/04 G01S5/021 G01S5/0242

    Abstract: Methods and apparatuses are directed to calibrating a misconfigured wireless access point. One method may include receiving a position of mobile station(s) and wireless signal model measurements derived from packets exchanged between the mobile station(s) and a plurality of wireless access points, receiving positions and/or identities of the plurality of wireless access points used in determining the position of the mobile station(s), comparing a position of the mobile station(s) with wireless signal model measurements, and identifying a misconfigured wireless access point based upon the comparing. Another method may include receiving positions associated with a plurality of wireless access points, determining a position of a mobile station based upon a wireless signal model, comparing the position of the mobile station and the wireless signal model with the positions associated with the plurality of wireless access points, and determining whether at least one wireless access point is misconfigured.

    Abstract translation: 方法和装置旨在校准错误配置的无线接入点。 一种方法可以包括接收移动台的位置和从在移动台和多个无线接入点之间交换的分组导出的无线信号模型测量,接收多个无线接入点的位置和/或身份 用于确定移动台的位置,将移动站的位置与无线信号模型测量进行比较,以及基于比较来识别错误配置的无线接入点。 另一种方法可以包括接收与多个无线接入点相关联的位置,基于无线信号模型确定移动台的位置,将移动台的位置与无线信号模型与与多个无线接入相关联的位置进行比较 接入点,以及确定至少一个无线接入点是否配置错误。

    Radio model updating
    6.
    发明申请
    Radio model updating 有权
    无线电模型更新

    公开(公告)号:US20130184012A1

    公开(公告)日:2013-07-18

    申请号:US13781414

    申请日:2013-02-28

    CPC classification number: H04W4/023 H04W4/043 H04W64/00

    Abstract: The subject matter disclosed herein relates to systems, methods, apparatuses, devices, articles, and means for updating radio models. For certain example implementations, a method for one or more server devices may comprise receiving at one or more communication interfaces at least one measurement that corresponds to a position of a first mobile device within an indoor environment. At least one radio model that is stored in one or more memories may be updated based, at least in part, on the at least one measurement to produce at least one updated radio model. The at least one radio model and the at least one updated radio model may correspond to the indoor environment. The at least one updated radio model may be transmitted to enable a second mobile device to use the at least one updated radio model for positioning within the indoor environment. Other example implementations are described herein.

    Abstract translation: 本文公开的主题涉及用于更新无线电模型的系统,方法,装置,装置,物品和装置。 对于某些示例实现,用于一个或多个服务器设备的方法可以包括在一个或多个通信接口处接收与室内环境中的第一移动设备的位置相对应的至少一个测量。 至少一个存储在一个或多个存储器中的无线电模型可以至少部分地基于所述至少一个测量来更新,以产生至少一个更新的无线电模型。 所述至少一个无线电模型和所述至少一个更新的无线电模型可以对应于室内环境。 可以发送所述至少一个更新的无线电模型以使得第二移动设备能够使用至少一个更新的无线电模型来在室内环境内定位。 本文描述了其他示例实现。

    Power control for wireless LAN stations

    公开(公告)号:US09629100B2

    公开(公告)日:2017-04-18

    申请号:US14690656

    申请日:2015-04-20

    Abstract: Techniques and apparatus for controlling the transmit power of an uplink (UL) signal from a user terminal in a wireless communications system in an effort to achieve some target characteristic, such as a target carrier-to-interference (C/I) ratio, at an access point (AP) are provided. In this manner, such a user terminal may help avoid or compensate for imbalances in received radio frequency (RF) power between UL signals received from multiple user terminals by the AP. For example, the transmit power at each user terminal may be controlled in an effort to achieve a target post-processing C/I ratio of 28 dB per spatial stream in an effort to reduce large power imbalances and optimize throughput per user terminal. The user terminal and the AP may compose part of a multiple-input multiple-output (MIMO) communication system utilizing spatial-division multiple access (SDMA) techniques.

    Wireless-based positioning adjustments using a motion sensor
    8.
    发明授权
    Wireless-based positioning adjustments using a motion sensor 有权
    使用运动传感器进行基于无线的定位调整

    公开(公告)号:US09291704B2

    公开(公告)日:2016-03-22

    申请号:US14515076

    申请日:2014-10-15

    Abstract: Apparatuses and methods for adjusting wireless-derived positions of a mobile station using a motion sensor are presented. One method includes estimating a position of a mobile station based upon wireless signal measurements and measuring a movement of the mobile station using a relative motion sensor. The method further includes detecting a displacement of the mobile station based upon the measured movement, determining that the displacement is below a threshold and then adjusting the estimated position of the mobile station using information from the relative motion sensor. An apparatus includes a wireless transceiver, a relative motion sensor, a processor coupled to the wireless transceiver and the relative motion sensor, and a memory coupled to the processor. The memory stores executable instructions and data for causing the processor to execute methods for adjusting wireless-derived positions using a motion sensor.

    Abstract translation: 提出了使用运动传感器来调整移动台的无线来源位置的装置和方法。 一种方法包括基于无线信号测量来估计移动台的位置,并且使用相对运动传感器来测量移动台的移动。 该方法还包括基于测量的移动来检测移动站的位移,确定位移低于阈值,然后使用来自相对运动传感器的信息来调整移动站的估计位置。 一种装置包括无线收发器,相对运动传感器,耦合到无线收发器和相对运动传感器的处理器以及耦合到处理器的存储器。 存储器存储用于使处理器执行使用运动传感器来调整无线来源位置的方法的可执行指令和数据。

    Mobile station use of round trip time measurements
    9.
    发明授权
    Mobile station use of round trip time measurements 有权
    移动台使用往返时间测量

    公开(公告)号:US09247446B2

    公开(公告)日:2016-01-26

    申请号:US14822441

    申请日:2015-08-10

    Abstract: Techniques are provided in which a mobile station may determine a first round-trip time (RTT) for a first measurement related communication between the transceiver and a first network device, wherein the first RTT comprises a uniform delay of time applied during the first measurement related communication by the first network device; Determine a second RTT for a second measurement related communication between the transceiver and a second network device, wherein the second RTT comprises the uniform delay of time applied during the second measurement related communication by the second network device; and determine, at least in part, a position of the mobile station with regard to at least the first and second network devices based, at least in part, on the first RTT and the second RTT.

    Abstract translation: 提供了一种技术,其中移动台可以确定收发器和第一网络设备之间的第一测量相关通信的第一往返时间(RTT),其中第一RTT包括在第一测量期间应用的时间的均匀延迟 由第一网络设备通信; 确定所述收发器和第二网络设备之间的第二测量相关通信的第二RTT,其中所述第二RTT包括由所述第二网络设备在所述第二测量相关通信期间施加的时间的均匀延迟; 并且至少部分地至少部分地基于第一RTT和第二RTT至少部分地确定关于至少第一和第二网络设备的移动站的位置。

    Processing time determination for wireless position determination
    10.
    发明授权
    Processing time determination for wireless position determination 有权
    无线位置确定的处理时间确定

    公开(公告)号:US09213082B2

    公开(公告)日:2015-12-15

    申请号:US13859652

    申请日:2013-04-09

    Abstract: An example method for determining a processing time for wirelessly determining a position of a mobile station includes: measuring a round trip time delay to each of multiple wireless access points; estimating an initial processing time for each of the wireless access points; calculating the position of the mobile station based upon the measured round trip time delays and estimated processing times; and updating the initial processing time for each of the wireless access points based upon the calculated position of the mobile station.

    Abstract translation: 用于确定用于无线地确定移动站的位置的处理时间的示例性方法包括:测量到多个无线接入点中的每一个的往返时间延迟; 估计每个无线接入点的初始处理时间; 基于测量的往返时间延迟和估计的处理时间来计算移动台的位置; 以及基于所计算的所述移动站的位置来更新所述无线接入点中的每一个的初始处理时间。

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