Dynamic switching between SU-MIMO and MU-MIMO transmission

    公开(公告)号:US11121746B2

    公开(公告)日:2021-09-14

    申请号:US16023607

    申请日:2018-06-29

    Applicant: Apple Inc.

    Abstract: Disclosed herein are system, method, and computer program product embodiments for indicating a preference to receive a single-user multiple input multiple output (SU-MIMO) or multi-user multiple input multiple output (MU-MIMO) transmission from an access point (AP). Embodiments include generating a standard action frame that contains an action field that species a preference to receive a SU-MIMO or MU-MIMO transmission from the AP. A station (STA) can transmit the generated action frame to the AP. The STA can receive an acknowledgement frame from the AP that indicates the AP is configured to use the requested transmission method. The STA can then receive data from the AP using the requested transmission method.

    Adaptive Wifi roaming
    12.
    发明授权

    公开(公告)号:US10986563B2

    公开(公告)日:2021-04-20

    申请号:US15618276

    申请日:2017-06-09

    Applicant: Apple Inc.

    Abstract: The present disclosure describes a method for adaptive WiFi roaming, where an electronic device and an access point advertise their networking capability. The networking capability may be, for example, the capability to support at least one enterprise feature. Based on the advertisements transmitted by the electronic device, the access point can determine that the electronic device can support the at least one enterprise feature and may selectively enable the at least one enterprise feature. Additionally, based on advertisements transmitted by the access point, the electronic device can determine that the access point can support the at least one enterprise feature. Based on this mutual determination, the access point and electronic device may continue an association process based on the at least one enterprise feature.

    Device and Method for Opportunistic Roaming
    13.
    发明申请
    Device and Method for Opportunistic Roaming 有权
    机会漫游的设备和方法

    公开(公告)号:US20150350993A1

    公开(公告)日:2015-12-03

    申请号:US14292620

    申请日:2014-05-30

    Applicant: APPLE INC.

    CPC classification number: H04W48/16 H04W8/18 H04W48/20

    Abstract: A method, station and computer readable storage medium used to perform opportunistic roaming procedures. A station joined to a basic service set (BSS) of an access point (AP) performs a method including determining a roam profile for the station, the roam profile indicating at least one of available operating bands or available APs for the station, determining a first value associated with a network parameter of the joined AP, determining at least one roam candidate AP having a second value associated with the network parameter corresponding to the roam candidate AP, wherein the first and second values are a received signal strength indicator, determining whether a predetermined criteria value is satisfied based upon the first and second values, wherein the predetermined criteria value is a minimum difference between the first value and second value and roaming to the roam candidate AP when the predetermined criteria value is satisfied.

    Abstract translation: 用于执行机会性漫游过程的方法,站和计算机可读存储介质。 加入接入点(AP)的基本服务集(BSS)的站执行包括确定站的漫游简档的漫游配置文件,指示站的可用操作频带或可用AP中的至少一个的漫游配置文件,确定 与所连接的AP的网络参数相关联的第一值,确定具有与对应于漫游候选AP的网络参数相关联的第二值的至少一个漫游候选AP,其中第一和第二值是接收信号强度指示符,确定是否 基于第一和第二值来满足预定标准值,其中,当满足预定标准值时,预定标准值是第一值和第二值之间的最小差值,并且漫游到漫游候选AP。

    Device and Method for Basic Service Set Transition Management
    14.
    发明申请
    Device and Method for Basic Service Set Transition Management 有权
    基本服务集转换管理的设备与方法

    公开(公告)号:US20150350875A1

    公开(公告)日:2015-12-03

    申请号:US14292052

    申请日:2014-05-30

    Applicant: APPLE INC.

    CPC classification number: H04W36/0083 H04W36/0061 H04W36/08 H04W36/22

    Abstract: A method, station and computer readable storage medium used to perform a roaming procedure. The method performed by the station including determining whether a roam is to be performed, the station being associated with a first access point (AP), receiving network related information for at least one second AP, determining a score value for each of the at least one second AP based upon the network related information, the score value being either a quantitative score calculated as a function of a respective received signal strength indicator (RSSI) value and a respective load value or a qualitative score calculated as a function of a preference value and the RSSI value, selecting one of the at least one second AP based upon the score values and roaming from the first AP to the selected one of the at least one second AP.

    Abstract translation: 用于执行漫游过程的方法,站和计算机可读存储介质。 由所述站执行的所述方法包括确定是否要执行漫游,所述站与第一接入点(AP)相关联,接收至少一个第二AP的网络相关信息,至少为每个AP确定得分值 基于网络相关信息的第二AP,得分值是作为相应接收信号强度指示符(RSSI)值的函数计算的定量分数以及作为偏好值的函数计算的相应负载值或定性分数 和所述RSSI值,基于所述分数值选择所述至少一个第二AP中的一个,并且从所述第一AP漫游到所述至少一个第二AP中的所选择的一个。

    Fast Return to Wi-Fi
    17.
    发明申请

    公开(公告)号:US20180332506A1

    公开(公告)日:2018-11-15

    申请号:US15593686

    申请日:2017-05-12

    Applicant: Apple Inc.

    CPC classification number: H04W36/0022 H04W48/16 H04W84/12 H04W88/06

    Abstract: Embodiments for performing a fast return to Wi-Fi following completion of a cellular voice call are provided. These embodiments include detecting that a device has switched from communicating over a Wi-Fi interface to communicating over a cellular interface; determining the earliest time that the device can switch back to Wi-Fi; and instituting the switch. In some embodiments, the process of performing a fast return to Wi-Fi is carried out by devices having small form factors, such as smartwatches and other wearables, which may be susceptible to coexistence and peak power problems. The fast return to Wi-Fi embodiments disclosed herein allow a device to perform a voice call over a cellular interface when Wi-Fi calling is not available, and switch over to a Wi-Fi interface immediately upon completion of the voice call in order to conserve battery life, achieve higher data speeds, and avoid high costs associated with cellular data transmissions.

    Device and method for basic service set transition management

    公开(公告)号:US09807653B2

    公开(公告)日:2017-10-31

    申请号:US14292052

    申请日:2014-05-30

    Applicant: APPLE INC.

    CPC classification number: H04W36/0083 H04W36/0061 H04W36/08 H04W36/22

    Abstract: A method, station and computer readable storage medium used to perform a roaming procedure. The method performed by the station including determining whether a roam is to be performed, the station being associated with a first access point (AP), receiving network related information for at least one second AP, determining a score value for each of the at least one second AP based upon the network related information, the score value being either a quantitative score calculated as a function of a respective received signal strength indicator (RSSI) value and a respective load value or a qualitative score calculated as a function of a preference value and the RSSI value, selecting one of the at least one second AP based upon the score values and roaming from the first AP to the selected one of the at least one second AP.

    INTERNET PROTOCOL ADDRESS IPv4/IPv6 BASED PACKET FILTERING IN WoWLAN MODE
    20.
    发明申请
    INTERNET PROTOCOL ADDRESS IPv4/IPv6 BASED PACKET FILTERING IN WoWLAN MODE 审中-公开
    互联网协议地址WoWLAN模式下的基于IPv4 / IPv6的分组过滤

    公开(公告)号:US20130332598A1

    公开(公告)日:2013-12-12

    申请号:US13627961

    申请日:2012-09-26

    Applicant: APPLE INC.

    CPC classification number: H04L43/04 H04L12/12 H04L43/028

    Abstract: One embodiment of the present invention provides a system configured to apply Internet Protocol (IP) address based packet filtering prior to entering Wake on Wireless LAN (WoWLAN) mode. During operation, the system receives a request to enter WoWLAN mode. In response to this request, the system collects a set of active IP addresses, as well as a set of active ports. Next, the system filters out packets destined to IP addresses that are not members of the set of active IP addresses, and ports that are not members of the set of active ports. Finally, the system enters WoWLAN mode.

    Abstract translation: 本发明的一个实施例提供一种被配置为在进入无线LAN唤醒(WoWLAN)模式之前应用基于因特网协议(IP)地址的分组过滤的系统。 在操作过程中,系统收到进入WoWLAN模式的请求。 响应于此请求,系统收集一组活动IP地址以及一组活动端口。 接下来,系统将过滤掉不属于该组活动IP地址的IP地址的数据包,以及不是该组活动端口成员的端口。 最后,系统进入WoWLAN模式。

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