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1. 发明申请

US20060171326A1 Remedial actions for interference in wireless LANs 审中-公开
标题翻译：干扰无线局域网的补救措施
公开(公告)号：US20060171326A1
公开(公告)日：2006-08-03
申请号：US11103408
申请日：2005-04-11
申请人： Roger Durand , Michael Yuen
发明人： Roger Durand , Michael Yuen
IPC分类号： H04L1/00
CPC分类号： H04L1/0001 , H04L1/0007 , H04L1/0015 , H04W16/14 , H04W28/06 , H04W28/22 , H04W36/06 , H04W52/243 , H04W84/12 , H04W92/10
摘要： In a wireless network having an access point and at least one wireless end device, the access point is operable to differentiate between normal communications and interference from another device in order to capture a sample of the interference, determine whether the interference originates from a known type of device, and prompt remedial actions such as moving communications to a distant channel, increasing transmission power, changing data rate, and packet fragmentation based on whether the interference originates from a known type of device. Interference pulse duration may be used to at least initially narrow the possible sources of interference. Pulse period may be employed to differentiate between interference sources which exhibit similar pulse duration. If pulse duration and period are not sufficient to identify the interference source then other characteristics may be examined, such as pulse waveform, roll off and period in relation to local power frequency. In the case of microwave interference it is generally best to move to a distant channel. Increased transmission power and packet fragmentation can be used to maintain communications while scanning for a new channel.
摘要翻译：在具有接入点和至少一个无线终端设备的无线网络中，接入点可操作以区分正常通信和来自另一设备的干扰，以便捕获干扰样本，确定干扰是否源于已知类型的装置，并且基于来自已知类型的装置的干扰，立即采取补救措施，例如将移动通信到远距离信道，增加发送功率，改变数据速率和分组分段。干扰脉冲持续时间可以用于至少开始缩小可能的干扰源。可以采用脉冲周期来区分表现出类似脉冲持续时间的干扰源。如果脉冲持续时间和周期不足以识别干扰源，则可以检查其他特性，例如脉冲波形，滚降和与局部功率频率相关的周期。在微波干扰的情况下，通常最好移动到遥远的通道。在扫描新通道时，增加的传输功率和分组分段可用于维护通信。

2. 发明授权

US07813370B2 Facilitating wireless spectrum migration 有权
标题翻译：促进无线频谱迁移
公开(公告)号：US07813370B2
公开(公告)日：2010-10-12
申请号：US11113672
申请日：2005-04-25
申请人： Roger Durand , Michael Yuen
发明人： Roger Durand , Michael Yuen
IPC分类号： H04L12/28
CPC分类号： H04W16/02 , H04W16/00 , H04W16/14
摘要： Migrating from a legacy spectrum allocation to a target spectrum allocation can be accomplished by adding new access points and, at a selected time, activating the new access points and deactivating the legacy access points with a remote network manager. Alternatively, the new access points can initially support legacy channels and at a selected time be reconfigured to support only the target channels. Alternatively, the new access points are initially activated in a mode which supports only a subset of the target channels and at a selected time reconfigured to support only the target channels. A remote network manager may be employed to remotely monitor, reconfigure, and trigger activation and deactivation of access points in support of the technique. New access points adapted to respond to inputs from the remote network manager further facilitate the invention. For example, the new access points may be remotely configurable to activate, deactivate, support a legacy spectrum or portions thereof, support a target spectrum or portions thereof, and provide traffic load and other data to the remote network manager.
摘要翻译：从传统频谱分配迁移到目标频谱分配可以通过添加新的接入点并且在选定的时间激活新的接入点并且利用远程网络管理器去激活传统接入点来实现。或者，新的接入点可以最初支持传统信道，并且在选定的时间被重新配置为仅支持目标信道。或者，新接入点最初以仅支持目标信道子集的模式激活，并且在被选择的时间被重新配置为仅支持目标信道。可以使用远程网络管理器来远程监视，重新配置和触发支持该技术的接入点的激活和停用。适于响应来自远程网络管理员的输入的新接入点进一步促进了本发明。例如，新的接入点可以是远程可配置的，以激活，去激活，支持传统频谱或其部分，支持目标频谱或其部分，以及向远程网络管理器提供业务负载和其他数据。

3. 发明申请

US20060291401A1 Co-channel congestion method and apparatus 有权
标题翻译：同频道拥塞方法和装置
公开(公告)号：US20060291401A1
公开(公告)日：2006-12-28
申请号：US11159481
申请日：2005-06-23
申请人： Michael Yuen , David Hill , Roger Durand
发明人： Michael Yuen , David Hill , Roger Durand
IPC分类号： H04J1/16 , H04Q7/00
CPC分类号： H04W72/02 , H04W24/10 , H04W88/08
摘要： A system and method for Access Point (AP) channel selection based upon a Channel Quality Index (CQI) is described. The Channel Quality Index (CQI) is a value which quantifies a transmission quality of a channel. The transmission quality is evaluated based on a combination of different types of measured interference in the channel. In one embodiment the different types of measured interference include co-channel congestion, adjacent channel interference and in-band interference. The CQI is a value derived from the measurements, and for example may be a sum of all of the measurements. Each AP of the present invention determines the CQI of potential transmission channels, and selects a channel for use which has the ‘best’ CQI; for example if the CQI is a sum of all measured interferences, the ‘best’ AP is the one with the lowest CQI
摘要翻译：描述了基于信道质量指数（CQI）的接入点（AP）信道选择的系统和方法。信道质量指标（CQI）是量化通道的传输质量的值。基于通道中不同类型的测量干扰的组合来评估传输质量。在一个实施例中，不同类型的被测干扰包括同信道拥塞，相邻信道干扰和带内干扰。 CQI是从测量得到的值，例如可以是所有测量的总和。本发明的每个AP确定潜在传输信道的CQI，并选择具有“最佳”CQI的使用信道; 例如，如果CQI是所有测量的干扰的总和，则“最佳”AP是CQI最低的那个

4. 发明授权

US07633901B2 Co-channel congestion method and apparatus 有权
标题翻译：同频道拥塞方法和装置
公开(公告)号：US07633901B2
公开(公告)日：2009-12-15
申请号：US11159481
申请日：2005-06-23
申请人： Michael Yuen , David Hill , Roger Durand
发明人： Michael Yuen , David Hill , Roger Durand
IPC分类号： H04W4/00 , H04W72/00
CPC分类号： H04W72/02 , H04W24/10 , H04W88/08
摘要： A system and method for Access Point (AP) channel selection based upon a Channel Quality Index (CQI) is described. The Channel Quality Index (CQI) is a value which quantifies a transmission quality of a channel. The transmission quality is evaluated based on a combination of different types of measured interference in the channel. In one embodiment the different types of measured interference include co-channel congestion, adjacent channel interference and in-band interference. The CQI is a value derived from the measurements, and for example may be a sum of all of the measurements. Each AP of the present invention determines the CQI of potential transmission channels, and selects a channel for use which has the ‘best’ CQI; for example if the CQI is a sum of all measured interferences, the ‘best’ AP is the one with the lowest CQI.
摘要翻译：描述了基于信道质量指数（CQI）的接入点（AP）信道选择的系统和方法。信道质量指标（CQI）是量化通道的传输质量的值。基于通道中不同类型的测量干扰的组合来评估传输质量。在一个实施例中，不同类型的被测干扰包括同信道拥塞，相邻信道干扰和带内干扰。 CQI是从测量得到的值，例如可以是所有测量的总和。本发明的每个AP确定潜在传输信道的CQI，并选择具有“最佳”CQI的使用信道; 例如，如果CQI是所有测量的干扰的总和，则“最佳”AP是CQI最低的那个。

5. 发明申请

US20060171327A1 Interference source recognition for wireless LANs 审中-公开
标题翻译：无线局域网的干扰源识别
公开(公告)号：US20060171327A1
公开(公告)日：2006-08-03
申请号：US11103410
申请日：2005-04-11
申请人： Roger Durand , Michael Yuen
发明人： Roger Durand , Michael Yuen
IPC分类号： H04L1/00
CPC分类号： H04W16/14 , H04L1/0001 , H04W76/20 , H04W84/12
摘要： In a wireless network having an access point and/or at least one wireless end device, the access point and/or end device is operable to differentiate between normal communications and interference from another device in order to capture a sample of the interference, determine whether the interference originates from a known type of device, and prompt remedial actions based on whether the interference originates from a known type of device. One technique for differentiating between interference and normal communications is to induce a quiet interval during which normal communications are ceased. Another technique is to employ a parallel demodulation engine. The quiet interval may be assembled from temporally non-contiguous quiet gaps between normal communications. For interference sources which exhibit a pulse waveform the interference sources are analyzed based on pulse period and duration.
摘要翻译：在具有接入点和/或至少一个无线终端设备的无线网络中，接入点和/或终端设备可操作以区分来自另一设备的正常通信和干扰，以便捕获干扰样本，确定是否干扰源自已知类型的设备，并且基于来自已知类型的设备的干扰而立即采取补救措施。用于区分干扰和正常通信的一种技术是引起静止间隔，在此期间停止正常通信。另一种技术是采用并行解调引擎。安静间隔可以在正常通信之间的时间上不连续的安静间隙进行组装。对于表现脉搏波形的干扰源，根据脉冲周期和持续时间分析干扰源。

6. 发明授权

US07636550B2 System and method for determining channel quality in a wireless network 有权
标题翻译：用于确定无线网络中的信道质量的系统和方法
公开(公告)号：US07636550B2
公开(公告)日：2009-12-22
申请号：US11165007
申请日：2005-06-23
申请人： Michael Yuen , David Hill , Roger Durand
发明人： Michael Yuen , David Hill , Roger Durand
IPC分类号： H04B15/00 , H04W72/00 , H04B7/00 , H04W4/00
CPC分类号： H04L1/0026 , H04B17/373
摘要： A system and method for Access Point (AP) channel selection based upon a Channel Quality Index (CQI) is described. The Channel Quality Index (CQI) is a value which quantifies a transmission quality of a channel. The transmission quality is evaluated based on a combination of different types of measured interference in the channel. In one embodiment the different types of measured interference include co-channel congestion, adjacent channel interference and in-band interference. The CQI is a value derived from the measurements, and for example may be a sum of all of the measurements. Each AP of the present invention determines the CQI of potential transmission channels, and selects a channel for use which has the ‘best’ CQI; for example if the CQI is a sum of all measured interferences, the ‘best’ AP is the one with the lowest CQI
摘要翻译：描述了基于信道质量指数（CQI）的接入点（AP）信道选择的系统和方法。信道质量指标（CQI）是量化通道的传输质量的值。基于通道中不同类型的测量干扰的组合来评估传输质量。在一个实施例中，不同类型的被测干扰包括同信道拥塞，相邻信道干扰和带内干扰。 CQI是从测量得到的值，例如可以是所有测量的总和。本发明的每个AP确定潜在传输信道的CQI，并选择具有“最佳”CQI的使用信道; 例如，如果CQI是所有测量的干扰的总和，则“最佳”AP是CQI最低的那个

7. 发明申请

US20060292988A1 System and method for determining channel quality in a wireless network 有权
公开(公告)号：US20060292988A1
公开(公告)日：2006-12-28
申请号：US11165007
申请日：2005-06-23
申请人： Michael Yuen , David Hill , Roger Durand
发明人： Michael Yuen , David Hill , Roger Durand
IPC分类号： H04B17/00
CPC分类号： H04L1/0026 , H04B17/373
摘要： A system and method for Access Point (AP) channel selection based upon a Channel Quality Index (CQI) is described. The Channel Quality Index (CQI) is a value which quantifies a transmission quality of a channel. The transmission quality is evaluated based on a combination of different types of measured interference in the channel. In one embodiment the different types of measured interference include co-channel congestion, adjacent channel interference and in-band interference. The CQI is a value derived from the measurements, and for example may be a sum of all of the measurements. Each AP of the present invention determines the CQI of potential transmission channels, and selects a channel for use which has the ‘best’ CQI; for example if the CQI is a sum of all measured interferences, the ‘best’ AP is the one with the lowest CQI

8. 发明申请

US20060239187A1 Facilitating wireless spectrum migration 有权
标题翻译：促进无线频谱迁移
公开(公告)号：US20060239187A1
公开(公告)日：2006-10-26
申请号：US11113672
申请日：2005-04-25
申请人： Roger Durand , Michael Yuen
发明人： Roger Durand , Michael Yuen
IPC分类号： H04L12/26 , H04Q7/24
CPC分类号： H04W16/02 , H04W16/00 , H04W16/14
摘要： Migrating from a legacy spectrum allocation to a target spectrum allocation can be accomplished by adding new access points and, at a selected time, activating the new access points and deactivating the legacy access points with a remote network manager. Alternatively, the new access points can initially support legacy channels and at a selected time be reconfigured to support only the target channels. Alternatively, the new access points are initially activated in a mode which supports only a subset of the target channels and at a selected time reconfigured to support only the target channels. A remote network manager may be employed to remotely monitor, reconfigure, and trigger activation and deactivation of access points in support of the technique. New access points adapted to respond to inputs from the remote network manager further facilitate the invention. For example, the new access points may be remotely configurable to activate, deactivate, support a legacy spectrum or portions thereof, support a target spectrum or portions thereof, and provide traffic load and other data to the remote network manager.
摘要翻译：从传统频谱分配迁移到目标频谱分配可以通过添加新的接入点并且在选定的时间激活新的接入点并且利用远程网络管理器去激活传统接入点来实现。或者，新的接入点可以最初支持传统信道，并且在选定的时间被重新配置为仅支持目标信道。或者，新接入点最初以仅支持目标信道子集的模式激活，并且在被选择的时间被重新配置为仅支持目标信道。可以使用远程网络管理器来远程监视，重新配置和触发支持该技术的接入点的激活和停用。适于响应来自远程网络管理员的输入的新接入点进一步促进了本发明。例如，新的接入点可以是远程可配置的，以激活，去激活，支持传统频谱或其部分，支持目标频谱或其部分，以及向远程网络管理器提供业务负载和其他数据。

9. 发明申请

US20060182064A1 Interference counter-measures for wireless LANs 审中-公开
标题翻译：无线局域网的干扰对策
公开(公告)号：US20060182064A1
公开(公告)日：2006-08-17
申请号：US11102954
申请日：2005-04-11
申请人： Roger Durand , Michael Yuen
发明人： Roger Durand , Michael Yuen
IPC分类号： H04Q7/00
CPC分类号： H04W24/02 , H04W16/14 , H04W72/06
摘要： In a wireless network an access point and/or wireless end device is operable in response to interference from another device to capture a sample of the interference, determine whether the interference originates from a known type of device, and prompt remedial actions based on whether the interference originates from a known type of device. The access point may include a table of known interference signatures and a table of counter measure plans, each interference signature being associated with a particular counter measure plan. Remedial actions include changing to an alternate operating channel and/or changing signal transmission characteristics.
摘要翻译：在无线网络中，接入点和/或无线终端设备可响应于来自另一设备的干扰来捕获干扰样本，确定干扰是否源于已知类型的设备，并且基于是否干扰源于已知类型的设备。接入点可以包括已知干扰签名的表和对策测量计划表，每个干扰签名与特定的对策测量计划相关联。补救措施包括改变为备用操作通道和/或改变信号传输特性。

10. 发明申请

US20060171335A1 Backup channel selection in wireless LANs 审中-公开
标题翻译：在无线LAN中备份频道选择
公开(公告)号：US20060171335A1
公开(公告)日：2006-08-03
申请号：US11103403
申请日：2005-04-11
申请人： Michael Yuen , Roger Durand , David Hill
发明人： Michael Yuen , Roger Durand , David Hill
IPC分类号： H04L12/28
CPC分类号： H04W36/06 , H04W36/30
摘要： Potential alternate channels in a wireless network are periodically analyzed and ranked in terms of interference. The best ranked alternate channel is selected as the new operating channel if a decision is made to move from the current operating channel to an alternate channel. Because the potential alternate channels are pre-ranked, the move to the new channel can be executed relatively quickly, and with reduced risk of encountering unacceptable interference conditions. Various ranking categories may be used, including but not limited to a first category that is relatively free of interference, a second category that has some interference but will support degraded communications, and a third category that has an unacceptable level of interference. Within a given rank, preference may be given to channels that were most recently analyzed and ranked.
摘要翻译：定期分析无线网络中的潜在备用信道，并根据干扰进行排名。如果决定从当前操作通道转移到另一个通道，则选择最佳排名的替代通道作为新的操作通道。由于潜在的替代频道是预先排名的，因此可以相对较快地执行向新频道的移动，同时降低遇到不可接受的干扰条件的风险。可以使用各种排名类别，包括但不限于相对没有干扰的第一类别，具有一些干扰但将支持降级通信的第二类别，以及具有不可接受的干扰水平的第三类别。在给定的排名中，可以优先考虑最近分析和排名的频道。

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