公开(公告)号：US09949227B2

公开(公告)日：2018-04-17

申请号：US14214209

申请日：2014-03-14

Applicant: Apple Inc.

Inventor： Christopher J. Hansen ,  Stuart K. Neubarth

IPC: H04W64/00 ,  G01S5/02 ,  G01S5/14 ,  G01S13/74

CPC classification number: H04W64/003 ,  G01S5/0205 ,  G01S5/0236 ,  G01S5/14 ,  G01S13/74

Abstract: A method and apparatus for location determination by a WLAN station is disclosed. The method can include a first WLAN station receiving a packet sent by a second WLAN station, deriving a channel quality metric for a channel between the first WLAN station and the second WLAN station, comparing the channel quality metric to a threshold, and calculating a distance between the first WLAN station and the second WLAN station in an instance in which the channel quality metric satisfies the threshold.

公开(公告)号：US20150207578A1

公开(公告)日：2015-07-23

申请号：US14502780

申请日：2014-09-30

Applicant: Apple Inc.

Inventor： Harish Ramamurthy ,  Joonsuk Kim ,  Yong Liu ,  Christopher J. Hansen

IPC: H04J1/08

CPC classification number: H04W72/0453 ,  H04W84/12 ,  H04W88/08

Abstract: A multichannel wireless local area network (WLAN) using multiple radio frequency (RF) channels simultaneously for a basic service set (BSS) is described. The multichannel WLAN provides efficient use of RF bandwidth and improves throughput. An access point of the multichannel WLAN communicates with client devices using at least two parallel RF channels, which can be located in two different RF bands. The access point supports connections to client devices using a “legacy” mode over a single logical channel mapped to a single RF channel and includes data traffic, control traffic, and management frames combined. The access point also supports connections to client devices using a high efficiency WLAN mode having multiple logical channels, each logical channel associated with one or more physical RF channels. The multiple logical channels include a management channel for management frames and a separate high efficiency WLAN data channel to carry data traffic and control traffic.

Abstract translation: 描述了为基本服务集（BSS）同时使用多个射频（RF）信道的多信道无线局域网（WLAN）。 多通道WLAN提供有效利用RF带宽并提高吞吐量。 多通道WLAN的接入点使用至少两个可以位于两个不同RF频带中的并行RF信道与客户端设备进行通信。 接入点支持通过映射到单个RF信道的单个逻辑信道上的“传统”模式连接到客户端设备，并且包括组合的数据业务，控制业务和管理帧。 接入点还支持使用具有多个逻辑信道的高效率WLAN模式到每个逻辑信道与一个或多个物理RF信道相关联的客户端设备的连接。 多个逻辑信道包括用于管理帧的管理信道和单独的高效率WLAN数据信道来承载数据业务并控制业务。

公开(公告)号：US20140233550A1

公开(公告)日：2014-08-21

申请号：US14181501

申请日：2014-02-14

Applicant: Apple Inc.

Inventor： Christopher J. Hansen

IPC: H04W4/02

CPC classification number: H04W4/023

Abstract: Method and apparatus for location determination by a wireless communication device is disclosed. The method includes a wireless communication device at least formatting a message defined to trigger initiation of a timing measurement exchange; sending the message to trigger initiation of the timing measurement exchange; monitoring a timing measurement exchange between a plurality of access points as part of the timing measurement exchange initiated in response to the message; and determining a location of the wireless communication device based on the timing measurement exchange.

Abstract translation: 公开了一种由无线通信设备进行位置确定的方法和装置。 该方法包括至少格式化定义为触发定时测量交换的启动的消息的无线通信设备; 发送消息以触发定时测量交换的启动; 监视作为响应于所述消息而发起的定时测量交换的一部分的多个接入点之间的定时测量交换; 以及基于所述定时测量交换来确定所述无线通信设备的位置。

公开(公告)号：US09960865B2

公开(公告)日：2018-05-01

申请号：US14152739

申请日：2014-01-10

Applicant: Apple Inc.

Inventor： Xiaowen Wang ,  Vinay R. Majjigi ,  Syed A. Mujtaba ,  Christopher J. Hansen

IPC: H04B17/318 ,  H04W48/16 ,  H04B17/26

CPC classification number: H04B17/318 ,  H04B17/26 ,  H04W48/16

Abstract: A station (STA) can receive messages (e.g., beacon frames) at a regular interval, and perform measurements on the received messages. The STA maintains a running average of recent measurement values, and updates the running average after each new measurement interval. At some measurement opportunities, the expected messages cannot be received by the STA, and so the STA cannot perform a measurement; when this occurs, the STA can choose substitute values to use for the missed measurements when next calculating the running average. As one example, the STA can substitute the value for a previously-performed measurement for the missed measurements. As another example, the STA can substitute a predetermined low value for the missed measurements. Based on the value of the running average at a given point in time, the STA can take actions such as initiating a roaming scan or switching to a different wireless interface.

公开(公告)号：US20140269391A1

公开(公告)日：2014-09-18

申请号：US14214209

申请日：2014-03-14

Applicant: APPLE INC.

Inventor： Christopher J. Hansen ,  Stuart K. Neubarth

IPC: H04W64/00

CPC classification number: H04W64/003 ,  G01S5/0205 ,  G01S5/0236 ,  G01S5/14 ,  G01S13/74

Abstract: A method and apparatus for location determination by a WLAN station is disclosed. The method can include a first WLAN station receiving a packet sent by a second WLAN station, deriving a channel quality metric for a channel between the first WLAN station and the second WLAN station, comparing the channel quality metric to a threshold, and calculating a distance between the first WLAN station and the second WLAN station in an instance in which the channel quality metric satisfies the threshold.

Abstract translation: 公开了一种用于WLAN站的位置确定的方法和装置。 该方法可以包括：接收由第二WLAN站发送的分组的第一WLAN站，导出第一WLAN站和第二WLAN站之间的信道的信道质量度量，将信道质量度量与阈值进行比较，以及计算距离 在信道质量度量满足阈值的情况下，在第一WLAN站和第二WLAN站之间。

公开(公告)号：US20140192669A1

公开(公告)日：2014-07-10

申请号：US14152739

申请日：2014-01-10

Applicant: Apple Inc.

Inventor： Xiaowen Wang ,  Vinay R. Majjigi ,  Syed A. Mujtaba ,  Christopher J. Hansen

IPC: H04W24/00

CPC classification number: H04B17/318 ,  H04B17/26 ,  H04W48/16

Abstract: A station (STA) can receive messages (e.g., beacon frames) at a regular interval, and perform measurements on the received messages. The STA maintains a running average of recent measurement values, and updates the running average after each new measurement interval. At some measurement opportunities, the expected messages cannot be received by the STA, and so the STA cannot perform a measurement; when this occurs, the STA can choose substitute values to use for the missed measurements when next calculating the running average. As one example, the STA can substitute the value for a previously-performed measurement for the missed measurements. As another example, the STA can substitute a predetermined low value for the missed measurements. Based on the value of the running average at a given point in time, the STA can take actions such as initiating a roaming scan or switching to a different wireless interface.

Abstract translation: 站（STA）可以以规则的间隔接收消息（例如，信标帧），并对所接收的消息执行测量。 STA保持最近测量值的运行平均值，并在每个新的测量间隔之后更新运行平均值。 在某些测量机会中，STA不能接收预期的消息，因此STA不能执行测量; 当发生这种情况时，STA可以选择替代值，用于下次计算运行平均值时的错过测量。 作为一个示例，STA可以将该值替换为先前执行的测量用于错过测量。 作为另一示例，STA可以将预定的低值替换为错过的测量。 基于给定时间点的运行平均值，STA可以采取行动，例如启动漫游扫描或切换到不同的无线接口。

公开(公告)号：US09596637B2

公开(公告)日：2017-03-14

申请号：US13855600

申请日：2013-04-02

Applicant: Apple Inc.

Inventor： Christopher J. Hansen ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Vinay R. Majjigi ,  Xiaowen Wang

IPC: H04W36/30 ,  H04W76/02

CPC classification number: H04W36/30 ,  H04W76/15

Abstract: In order to facilitate communication between an electronic device and another electronic device, the electronic device determines communication-quality metrics for a first connection in a wireless network based on received information from the other electronic device. Then, the electronic device calculates an overall communication-quality indicator for the first connection based on at least some of the communication-quality metrics. Moreover, the electronic device dynamically adapts the communication with the other electronic device based on the overall communication-quality indicator. For example, the electronic device may establish a second connection in a cellular-telephone network and may use the second connection to communicate with the other electronic device. Alternatively, the electronic device may provide the overall communication-quality indicator to the other electronic device and may at least partially transition the communication from the second connection in the cellular-telephone network to the first connection in the wireless network.

Abstract translation: 为了促进电子设备与另一电子设备之间的通信，电子设备基于来自另一电子设备的接收信息来确定无线网络中的第一连接的通信质量度量。 然后，电子设备基于至少一些通信质量度量来计算用于第一连接的整体通信质量指示符。 此外，电子设备基于总体通信质量指示符动态地适应与另一电子设备的通信。 例如，电子设备可以在蜂窝电话网络中建立第二连接，并且可以使用第二连接来与另一个电子设备进行通信。 或者，电子设备可以将整体通信质量指示符提供给另一电子设备，并且可以至少部分地将通信从蜂窝电话网络中的第二连接转移到无线网络中的第一连接。

公开(公告)号：US20140126397A1

公开(公告)日：2014-05-08

申请号：US13855600

申请日：2013-04-02

Applicant: APPLE, INC.

Inventor： Christopher J. Hansen ,  Kee-Bong Song ,  Syed A. Mujtaba ,  Vinay R. Majjigi ,  Xiaowen Wang

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W76/15

Abstract: In order to facilitate communication between an electronic device and another electronic device, the electronic device determines communication-quality metrics for a first connection in a wireless network based on received information from the other electronic device. Then, the electronic device calculates an overall communication-quality indicator for the first connection based on at least some of the communication-quality metrics. Moreover, the electronic device dynamically adapts the communication with the other electronic device based on the overall communication-quality indicator. For example, the electronic device may establish a second connection in a cellular-telephone network and may use the second connection to communicate with the other electronic device. Alternatively, the electronic device may provide the overall communication-quality indicator to the other electronic device and may at least partially transition the communication from the second connection in the cellular-telephone network to the first connection in the wireless network.

Abstract translation: 为了促进电子设备与另一电子设备之间的通信，电子设备基于来自另一电子设备的接收信息来确定无线网络中的第一连接的通信质量度量。 然后，电子设备基于至少一些通信质量度量来计算用于第一连接的总体通信质量指示符。 此外，电子设备基于总体通信质量指示符动态地适应与另一电子设备的通信。 例如，电子设备可以在蜂窝电话网络中建立第二连接，并且可以使用第二连接来与另一个电子设备进行通信。 或者，电子设备可以将整体通信质量指示符提供给另一电子设备，并且可以至少部分地将通信从蜂窝电话网络中的第二连接转移到无线网络中的第一连接。