公开(公告)号：WO2005089384A3

公开(公告)日：2007-02-01

申请号：PCT/US2005008771

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B1/02 ,  H01Q3/00 ,  H04B1/06 ,  H04B1/38 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/0695 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/20 ,  Y02D70/444

Abstract: A smart antenna steering algorithm operates in response to different functions monitored by the media access control (MAC) layer within a client station. One function is when the MAC layer indicates that the client station has been placed in a power savings mode. In response, the antenna algorithm stores an index of the currently selected antenna. Another function is when the MAC layer indicates that the client station has not been synchronized, associated and authenticated with an access point. In response, the algorithm selects an omni-directional antenna beam as the default antenna beam. Another function is when the MAC layer provides beacon period synchronization information to the antenna steering algorithm so that the algorithm can update its own timer.

Abstract translation: 智能天线导向算法响应于由客户站内的媒体访问控制（MAC）层监视的不同功能而工作。 一个功能是当MAC层指示客户端站已经处于省电模式时。 作为响应，天线算法存储当前选择的天线的索引。 另一个功能是当MAC层指示客户端站未被同步，与接入点关联和认证时。 作为响应，该算法选择全向天线波束作为默认天线波束。 另一个功能是当MAC层向天线导向算法提供信标周期同步信息时，算法可以更新自己的定时器。

公开(公告)号：WO2005089362A3

公开(公告)日：2007-06-07

申请号：PCT/US2005008697

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04M1/00 ,  H01Q3/22 ,  H04B1/00 ,  H04B1/06 ,  H04B7/04 ,  H04B7/06 ,  H04L12/28 ,  H04W16/28 ,  H04W84/12

CPC classification number: H04B7/0408 ,  H04B7/0695 ,  H04W16/28 ,  H04W84/12 ,  Y02D70/14

Abstract: A smart antenna steering algorithm performs a periodic re-scan at an end of a sustained use period and before a next sustained use period. During a sustained use period, a re-scan of the other antenna beams is not performed. The periodic re-scan is performed on alternate antenna beams that were selected when the preferred antenna beam was selected. The steering algorithm monitors a quality metric of the alternate antenna beams as well as a quality metric for the preferred antenna beam. If the quality metric of the preferred antenna beam is less than the quality metrics of anyone of the alternate antenna beams, then the alternate antenna beam corresponding to the quality metric having a higher value is selected for the next sustained use period.

Abstract translation: 智能天线转向算法在持续使用期结束时和在下一个持续使用期之前执行周期性的重新扫描。 在持续使用期间，不执行其他天线波束的重新扫描。 在选择优选天线波束时选择的备用天线波束执行周期性重新扫描。 转向算法监视替代天线波束的质量度量以及优选天线波束的质量度量。 如果优选天线波束的质量度量小于任何替代天线波束的质量度量，则选择对应于具有较高值的​​质量度量的替代天线波束用于下一个持续使用周期。

公开(公告)号：WO2005089385A3

公开(公告)日：2007-01-25

申请号：PCT/US2005008772

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B1/06 ,  H01Q3/22 ,  H04B1/02 ,  H04B1/38 ,  H04B7/02 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L12/28 ,  H04W16/28 ,  H04W84/12

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/086 ,  H04W16/28 ,  H04W84/12 ,  Y02D70/14

Abstract: A smart antenna steering algorithm performs a self-monitored re-scan during a sustained use period after having selected a preferred antenna beam. During a sustained use period, a re-scan of the other antenna beams is not performed. The steering algorithm periodically monitors a quality metric of the ongoing radio link provided by the preferred antenna beam. The quality metric is based upon a signal quality metric and a link quality metric. If the quality metric drops below certain thresholds during the sustained use period, the steering algorithm either swaps the preferred antenna beam with an alternate antenna beam or initiates a re-scan of the available antenna beams for selecting a new preferred antenna beam.

Abstract translation: 智能天线导向算法在选择优选的天线波束之后在持续使用期间执行自我监测的重新扫描。 在持续使用期间，不执行其他天线波束的重新扫描。 导向算法周期性地监视由优选天线波束提供的正在进行的无线电链路的质量度量。 质量度量基于信号质量度量和链路质量度量。 如果在持续使用期间质量度量下降到特定阈值以下，则导向算法或者用替代天线波束交换优选的天线波束，或者启动用于选择新的优选天线波束的可用天线波束的重新扫描。

公开(公告)号：WO2005089358A3

公开(公告)日：2007-01-04

申请号：PCT/US2005008683

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04M1/00 ,  H01Q3/02 ,  H04B1/06 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/086 ,  Y02D70/14

Abstract: An antenna steering algorithm for a smart antenna uses signal quality metrics and link quality metrics for selecting a preferred antenna beam. The link quality metrics supplement the signal quality metrics for improving the antenna steering decision. The link quality metrics are based on information available from existing counters operating in the media access control (MAC) layer. Separate estimates of the frame error rates in the receive links and in the transmit links are obtained. One estimate is the downlink quality metric (DLQM) and another estimate is the uplink quality metric (ULQM). Alternative link quality metrics are based on throughput and data rates of the exchanged data.

Abstract translation: 用于智能天线的天线导向算法使用信号质量度量和链路质量度量来选择优选的天线波束。 链路质量度量补充信号质量度量以改善天线导向决策。 链路质量度量基于在媒体访问控制（MAC）层中操作的现有计数器可用的信息。 获得接收链路和发送链路中帧错误率的单独估计。 一个估计是下行链路质量度量（DLQM），另一个估计是上行链路质量度量（ULQM）。 替代链路质量度量是基于交换数据的吞吐量和数据速率。

公开(公告)号：WO2006049714A3

公开(公告)日：2007-11-15

申请号：PCT/US2005033424

申请日：2005-09-16

Applicant: INTERDIGITAL TECH CORP ,  IACONO ANA LUCIA ,  CHANDRA ARTY ,  ZHAO ZHENG

Inventor： IACONO ANA LUCIA ,  CHANDRA ARTY ,  ZHAO ZHENG

IPC: H04M1/00 ,  H04W16/28

CPC classification number: H04W16/28

Abstract: Network Allocation Vector (NAV) and "beam access control" (BAC) techniques are provided to address data collision problems in WLANs wherein APs provide wireless network access in a service area defined by multiple sectors via use of a switchable antenna system or the like. Preferably, every time the AP visits a sector and before the AP moves on to the next sector, the AP can set the NAV equal to the time it will take until its next visit. Alternatively, or in addition, a BAC bit is transmitted by an AP to control access to the AP by WTRUs disposed in a service sector in which the BAC is transmitted.

Abstract translation: 提供网络分配向量（NAV）和“波束访问控制”（BAC）技术来解决WLAN中的数据冲突问题，其中AP通过使用可切换天线系统等在由多个扇区定义的服务区域中提供无线网络接入。 优选地，每当AP访问扇区并且在AP移动到下一个扇区之前，AP可以将NAV设置为等于其下一次访问所花费的时间。 或者，或者另外，由AP发送BAC比特，以通过设置在发送BAC的服务扇区中的WTRU来控制对AP的接入。

公开(公告)号：EP1730853A4

公开(公告)日：2007-09-26

申请号：EP05729218

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B7/04 ,  H01Q3/22 ,  H04B1/02 ,  H04B1/06 ,  H04B1/38 ,  H04B7/06 ,  H04B7/08 ,  H04L12/28 ,  H04W16/28 ,  H04W84/12

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/086 ,  H04W16/28 ,  H04W84/12 ,  Y02D70/14

Abstract: A smart antenna steering algorithm performs a self-monitored re-scan during a sustained use period after having selected a preferred antenna beam. During a sustained use period, a re-scan of the other antenna beams is not performed. The steering algorithm periodically monitors a quality metric of the ongoing radio link provided by the preferred antenna beam. The quality metric is based upon a signal quality metric and a link quality metric. If the quality metric drops below certain thresholds during the sustained use period, the steering algorithm either swaps the preferred antenna beam with an alternate antenna beam or initiates a re-scan of the available antenna beams for selecting a new preferred antenna beam.

公开(公告)号：EP1730854A4

公开(公告)日：2007-09-12

申请号：EP05730212

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B7/04 ,  H01Q3/02 ,  H04B1/06 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0408 ,  H04B7/0617 ,  H04B7/086 ,  Y02D70/14

Abstract: An antenna steering algorithm for a smart antenna uses signal quality metrics and link quality metrics for selecting a preferred antenna beam. The link quality metrics supplement the signal quality metrics for improving the antenna steering decision. The link quality metrics are based on information available from existing counters operating in the media access control (MAC) layer. Separate estimates of the frame error rates in the receive links and in the transmit links are obtained. One estimate is the downlink quality metric (DLQM) and another estimate is the uplink quality metric (ULQM). Alternative link quality metrics are based on throughput and data rates of the exchanged data.

公开(公告)号：EP1730852A4

公开(公告)日：2007-11-28

申请号：EP05728325

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B7/04 ,  H01Q3/00 ,  H04B1/06 ,  H04B7/06

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/0695 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/20 ,  Y02D70/444

Abstract: A smart antenna steering algorithm operates in response to different functions monitored by the media access control (MAC) layer within a client station. One function is when the MAC layer indicates that the client station has been placed in a power savings mode. In response, the antenna algorithm stores an index of the currently selected antenna. Another function is when the MAC layer indicates that the client station has not been synchronized, associated and authenticated with an access point. In response, the algorithm selects an omni-directional antenna beam as the default antenna beam. Another function is when the MAC layer provides beacon period synchronization information to the antenna steering algorithm so that the algorithm can update its own timer.

Abstract translation: 智能天线操纵算法响应由客户站内的媒体访问控制（MAC）层监视的不同功能而操作。 一个功能是当MAC层指示客户端站已被置于省电模式时。 作为响应，天线算法存储当前选择的天线的索引。 另一个功能是当MAC层指示客户站未与接入点同步，关联和验证时。 作为响应，该算法选择全向天线波束作为默认天线波束。 另一个功能是当MAC层向天线转向算法提供信标周期同步信息时，算法可以更新自己的定时器。

公开(公告)号：EP1730851A4

公开(公告)日：2007-10-24

申请号：EP05725698

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ERIC ,  LINTELMAN ROSS L

IPC: H04B7/04 ,  H01Q3/22 ,  H04B1/02 ,  H04B1/06 ,  H04B1/38 ,  H04B7/06 ,  H04B7/08 ,  H04L12/28 ,  H04W16/28 ,  H04W84/12

CPC classification number: H04B7/0408 ,  H04B7/0695 ,  H04W16/28 ,  H04W84/12 ,  Y02D70/14

Abstract: A smart antenna steering algorithm performs a periodic re-scan at an end of a sustained use period and before a next sustained use period. During a sustained use period, a re-scan of the other antenna beams is not performed. The periodic re-scan is performed on alternate antenna beams that were selected when the preferred antenna beam was selected. The steering algorithm monitors a quality metric of the alternate antenna beams as well as a quality metric for the preferred antenna beam. If the quality metric of the preferred antenna beam is less than the quality metrics of anyone of the alternate antenna beams, then the alternate antenna beam corresponding to the quality metric having a higher value is selected for the next sustained use period.

公开(公告)号：AT433231T

公开(公告)日：2009-06-15

申请号：AT05725698

申请日：2005-03-16

Applicant: INTERDIGITAL TECH CORP

Inventor： CHA INHYOK ,  ZHAO ZHENG ,  GORSUCH THOMAS ,  LINTELMAN ROSS

IPC: H04B7/04 ,  H01Q3/22 ,  H04B1/02 ,  H04B1/06 ,  H04B1/38 ,  H04B7/06 ,  H04B7/08 ,  H04L12/28 ,  H04W16/28 ,  H04W84/12

Abstract: A smart antenna steering algorithm performs a periodic re-scan at an end of a sustained use period and before a next sustained use period. During a sustained use period, a re-scan of the other antenna beams is not performed. The periodic re-scan is performed on alternate antenna beams that were selected when the preferred antenna beam was selected. The steering algorithm monitors a quality metric of the alternate antenna beams as well as a quality metric for the preferred antenna beam. If the quality metric of the preferred antenna beam is less than the quality metrics of anyone of the alternate antenna beams, then the alternate antenna beam corresponding to the quality metric having a higher value is selected for the next sustained use period.