公开(公告)号：US20110268060A1

公开(公告)日：2011-11-03

申请号：US13096885

申请日：2011-04-28

申请人： Sam HEIDARI ,  Ali Rouhi ,  Rajkumar Samuel

发明人： Sam HEIDARI ,  Ali Rouhi ,  Rajkumar Samuel

IPC分类号： H04W84/02 ,  H04W72/04

CPC分类号： H04W24/02 ,  H04B7/2606 ,  H04W16/20 ,  H04W16/26 ,  H04W84/045 ,  H04W84/12

摘要： A technique for expanding the range of coverage for a wireless local area network (WLAN) involves locating a wireless access point (WAP) away from an interworking unit (IWU) at the edges of the WLAN and a (typically) wired network. The WAP, when located away from the IWU, can be referred to as an untethered access point (UAP) because it communicates with the IWU on a wireless channel. Stations on the WLAN will be capable of communicating with the WAP, whether or not it is a UAP, via a known or convenient wireless protocol, such as Wi-Fi, and may or may not be capable of communicating with one another via a direct station-to-station protocol.

摘要翻译： 用于扩展无线局域网（WLAN）的覆盖范围的技术涉及将无线接入点（WAP）远离WLAN和（通常）有线网络的边缘处的互通单元（IWU）定位。 当远离IWU时，WAP可以被称为无限制接入点（UAP），因为它与无线信道上的IWU进行通信。 WLAN上的站将能够通过已知或方便的无线协议（例如Wi-Fi）与WAP通信，无论它是否是UAP，并且可能或可能不能够通过直接的方式彼此通信 站对站协议。

公开(公告)号：US20110096739A1

公开(公告)日：2011-04-28

申请号：US12913200

申请日：2010-10-27

申请人： Sam Heidari ,  Kapil Gulati ,  Ali Rouhi ,  Ravi Narasimhan ,  Rajkumar Samuel

发明人： Sam Heidari ,  Kapil Gulati ,  Ali Rouhi ,  Ravi Narasimhan ,  Rajkumar Samuel

IPC分类号： H04W72/04

CPC分类号： H04W72/085 ,  H04W36/06 ,  H04W48/16

摘要： A method and apparatus to select the best channel of a wireless network for data communication at any given time, during normal operation of the network, is described. The network may be an IEEE standard 802.11 compliant network. Channel scanning may be performed in any station on the wireless network, such as an access point (AP) or a mobile station, or both. Channel scanning may be performed during data communication idle time, or simultaneously with data communication on the network. The technique can be implemented in a multiple-input multiple-output (MIMO) communication system, where the antenna or antennas used for channel scanning can be selected dynamically during operation, to optimize one or more performance characteristics.

摘要翻译： 描述了在网络的正常操作期间在任何给定时间选择用于数据通信的无线网络的最佳信道的方法和装置。 网络可以是IEEE标准的802.11兼容网络。 频道扫描可以在诸如接入点（AP）或移动台之类的无线网络上的任何站中执行，或者两者。 信道扫描可以在数据通信空闲时间期间执行，或者与网络上的数据通信同时进行。 该技术可以在多输入多输出（MIMO）通信系统中实现，其中可以在操作期间动态地选择用于信道扫描的天线或天线，以优化一个或多个性能特征。

公开(公告)号：US08432826B2

公开(公告)日：2013-04-30

申请号：US12913200

申请日：2010-10-27

申请人： Sam Heidari ,  Kapil Gulati ,  Ali Rouhi ,  Ravi Narasimhan ,  Rajkumar Samuel

发明人： Sam Heidari ,  Kapil Gulati ,  Ali Rouhi ,  Ravi Narasimhan ,  Rajkumar Samuel

IPC分类号： H04L12/28 ,  H04W4/00 ,  H04W72/00 ,  H04B7/212

CPC分类号： H04W72/085 ,  H04W36/06 ,  H04W48/16

摘要： A method and apparatus to select the best channel of a wireless network for data communication at any given time, during normal operation of the network, is described. The network may be an IEEE standard 802.11 compliant network. Channel scanning may be performed in any station on the wireless network, such as an access point (AP) or a mobile station, or both. Channel scanning may be performed during data communication idle time, or simultaneously with data communication on the network. The technique can be implemented in a multiple-input multiple-output (MIMO) communication system, where the antenna or antennas used for channel scanning can be selected dynamically during operation, to optimize one or more performance characteristics.

摘要翻译： 描述了在网络的正常操作期间在任何给定时间选择用于数据通信的无线网络的最佳信道的方法和装置。 网络可以是IEEE标准的802.11兼容网络。 频道扫描可以在诸如接入点（AP）或移动台之类的无线网络上的任何站中执行，或者两者。 信道扫描可以在数据通信空闲时间期间执行，或者与网络上的数据通信同时进行。 该技术可以在多输入多输出（MIMO）通信系统中实现，其中可以在操作期间动态地选择用于信道扫描的天线或天线，以优化一个或多个性能特征。

公开(公告)号：US08599780B2

公开(公告)日：2013-12-03

申请号：US13096885

申请日：2011-04-28

申请人： Sam Heidari ,  Ali Rouhi ,  Rajkumar Samuel

发明人： Sam Heidari ,  Ali Rouhi ,  Rajkumar Samuel

IPC分类号： H04W84/02

CPC分类号： H04W24/02 ,  H04B7/2606 ,  H04W16/20 ,  H04W16/26 ,  H04W84/045 ,  H04W84/12

摘要： A technique for expanding the range of coverage for a wireless local area network (WLAN) involves locating a wireless access point (WAP) away from an interworking unit (IWU) at the edges of the WLAN and a (typically) wired network. The WAP, when located away from the IWU, can be referred to as an untethered access point (UAP) because it communicates with the IWU on a wireless channel. Stations on the WLAN will be capable of communicating with the WAP, whether or not it is a UAP, via a known or convenient wireless protocol, such as Wi-Fi, and may or may not be capable of communicating with one another via a direct station-to-station protocol.

摘要翻译： 用于扩展无线局域网（WLAN）的覆盖范围的技术涉及将无线接入点（WAP）远离WLAN和（通常）有线网络的边缘处的互通单元（IWU）定位。 当远离IWU时，WAP可以被称为无限制接入点（UAP），因为它与无线信道上的IWU进行通信。 WLAN上的站将能够通过已知或方便的无线协议（例如Wi-Fi）与WAP通信，无论它是否是UAP，并且可能或可能不能够通过直接的方式彼此通信 站对站协议。

公开(公告)号：US20120307934A1

公开(公告)日：2012-12-06

申请号：US13513191

申请日：2011-01-12

申请人： Sam Heidari ,  Rajkumar Samuel ,  Sigurd Schelstraete

发明人： Sam Heidari ,  Rajkumar Samuel ,  Sigurd Schelstraete

IPC分类号： H04L27/00

CPC分类号： H04L1/0017 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L2001/0098

摘要： Adjusting a Modulation and Coding Scheme (MCS) or more generally, Layer One parameters, for a data packet based on packet information and priority is disclosed. The packet information can typically be extracted from the packet's header. Considering packet-specific information enables cross-layer optimization that can include consideration of packet error rate (PER) constraints, delay constraints, relative importance of packets within a data stream, beamforming (e.g., off or on, implicit or explicit—longer distances are more likely to merit implicit beamforming) constraints, and aggregation as a function of MCS or channel condition (more aggregation is generally desirable for higher MCS or better channels), to name several examples. It is also possible to differentiate drop probability based on the importance of frames like anchor frames, etc.

摘要翻译： 公开了基于分组信息和优先级调整调制和编码方案（MCS）或更一般地，针对数据分组的第一层参数。 分组信息通常可以从分组报头中提取出来。 考虑到分组特定的信息使跨层优化能够包括考虑分组错误率（PER）约束，延迟约束，数据流内分组的相对重要性，波束成形（例如，关闭或接通，隐式或显式更长的距离） 更可能优于隐含波束形成）约束，并且聚合作为MCS或信道条件的函数（对于更高的MCS或更好的信道，更多的聚合通常是期望的），举出几个例子。 还可以根据帧的重要性来区分丢弃概率，例如锚帧等。

公开(公告)号：US08755455B2

公开(公告)日：2014-06-17

申请号：US13513191

申请日：2011-01-12

申请人： Sam Heidari ,  Rajkumar Samuel ,  Sigurd Schelstraete

发明人： Sam Heidari ,  Rajkumar Samuel ,  Sigurd Schelstraete

IPC分类号： H04L27/00

CPC分类号： H04L1/0017 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L2001/0098

摘要： Adjusting a Modulation and Coding Scheme (MCS) or more generally, Layer One parameters, for a data packet based on packet information and priority is disclosed. The packet information can typically be extracted from the packet's header. Considering packet-specific information enables cross-layer optimization that can include consideration of packet error rate (PER) constraints, delay constraints, relative importance of packets within a data stream, beamforming (e.g., off or on, implicit or explicit—longer distances are more likely to merit implicit beamforming) constraints, and aggregation as a function of MCS or channel condition (more aggregation is generally desirable for higher MCS or better channels), to name several examples. It is also possible to differentiate drop probability based on the importance of frames like anchor frames, etc.

摘要翻译： 公开了基于分组信息和优先级调整调制和编码方案（MCS）或更一般地，针对数据分组的第一层参数。 分组信息通常可以从分组报头中提取出来。 考虑到分组特定的信息使跨层优化能够包括考虑分组错误率（PER）约束，延迟约束，数据流内分组的相对重要性，波束成形（例如，关闭或接通，隐式或显式更长的距离） 更可能优于隐含波束形成）约束，并且聚合作为MCS或信道条件的函数（对于更高的MCS或更好的信道，更多的聚合通常是期望的），举出几个例子。 还可以根据帧的重要性来区分丢弃概率，例如锚帧等。