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1. 发明授权

US08024001B2 Method, system and components for facilitating wireless communication in a sectored service area 失效
标题翻译：用于促进分区服务区域中的无线通信的方法，系统和组件
公开(公告)号：US08024001B2
公开(公告)日：2011-09-20
申请号：US11787392
申请日：2007-04-16
申请人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04M1/00 , H04W40/00 , H04W4/00
CPC分类号： H04W16/28
摘要： 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.
摘要翻译：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。

2. 发明申请

US20120008608A1 METHOD, SYSTEM AND COMPONENTS FOR FACILITATING WIRELESS COMMUNICATION IN A SECTORED SERVICE AREA 失效
标题翻译：促进服务领域无线通信的方法，系统和组件
公开(公告)号：US20120008608A1
公开(公告)日：2012-01-12
申请号：US13236348
申请日：2011-09-19
申请人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04W4/00 , H04W88/08
CPC分类号： H04W16/28
摘要： A access point (AP) during wireless communication with at least one wireless transmit/receive unit (WTRU), transmits a beacon signal periodically among a plurality of sectors, each sector having its own sector identity, the beacon signal being periodically received at least once in a beacon period and the beacon period comprising a plurality of beacon service periods for all sectors. The AP determines a scheduling value to indicate a number of inactive beacon periods for a first sector to at least one WTRU located in the first sector. The scheduling value is transmitted with the sector identity for the first sector, such that a variable beacon period is established for the first sector, enabling the at least one WTRU located in the first sector to enter a sleep mode for an adjustable period of time.
摘要翻译：在与至少一个无线发射/接收单元（WTRU）的无线通信期间的接入点（AP）在多个扇区之间周期性地发送信标信号，每个扇区具有其自己的扇区标识，所述信标信号周期性地接收至少一次在信标周期中，信标周期包括用于所有扇区的多个信标服务周期。 AP确定调度值以指示第一扇区到位于第一扇区中的至少一个WTRU的无效信标周期的数量。调度值与第一扇区的扇区标识一起发送，使得为第一扇区建立可变信标周期，使得位于第一扇区中的至少一个WTRU能够进入可调整时间段的睡眠模式。

3. 发明授权

US07206610B2 Method, system and components for facilitating wireless communication in a sectored service area 失效
公开(公告)号：US07206610B2
公开(公告)日：2007-04-17
申请号：US11023861
申请日：2004-12-28
申请人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04M1/00 , H04Q7/20 , H04Q7/00
CPC分类号： H04W16/28
摘要： 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.

4. 发明授权

US08265702B2 Method, system and components for facilitating wireless communication in a sectored service area 失效
标题翻译：用于促进分区服务区域中的无线通信的方法，系统和组件
公开(公告)号：US08265702B2
公开(公告)日：2012-09-11
申请号：US13236348
申请日：2011-09-19
申请人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Lucia Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04M1/00 , H04W40/00 , H04W4/00
CPC分类号： H04W16/28
摘要： A access point (AP) during wireless communication with at least one wireless transmit/receive unit (WTRU), transmits a beacon signal periodically among a plurality of sectors, each sector having its own sector identity, the beacon signal being periodically received at least once in a beacon period and the beacon period comprising a plurality of beacon service periods for all sectors. The AP determines a scheduling value to indicate a number of inactive beacon periods for a first sector to at least one WTRU located in the first sector. The scheduling value is transmitted with the sector identity for the first sector, such that a variable beacon period is established for the first sector, enabling the at least one WTRU located in the first sector to enter a sleep mode for an adjustable period of time.
摘要翻译：在与至少一个无线发射/接收单元（WTRU）的无线通信期间的接入点（AP）在多个扇区之间周期性地发送信标信号，每个扇区具有其自己的扇区标识，所述信标信号周期性地接收至少一次在信标周期中，信标周期包括用于所有扇区的多个信标服务周期。 AP确定调度值以指示第一扇区到位于第一扇区中的至少一个WTRU的无效信标周期的数量。调度值与第一扇区的扇区标识一起发送，使得为第一扇区建立可变信标周期，使得位于第一扇区中的至少一个WTRU能够进入可调整时间段的睡眠模式。

5. 发明申请

US20070191063A1 Method, system and components for facilitating wireless communication in a sectored service area 失效
标题翻译：用于促进分区服务区域中的无线通信的方法，系统和组件
公开(公告)号：US20070191063A1
公开(公告)日：2007-08-16
申请号：US11787392
申请日：2007-04-16
申请人： Ana Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04B1/38
CPC分类号： H04W16/28
摘要： 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.
摘要翻译：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。

6. 发明申请

US20060105771A1 Method, system and components for facilitating wireless communication in a sectored service area 失效
标题翻译：用于促进分区服务区域中的无线通信的方法，系统和组件
公开(公告)号：US20060105771A1
公开(公告)日：2006-05-18
申请号：US11023861
申请日：2004-12-28
申请人： Ana Iacono , Arty Chandra , Zheng Zhao
发明人： Ana Iacono , Arty Chandra , Zheng Zhao
IPC分类号： H04Q7/20
CPC分类号： H04W16/28
摘要： 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.
摘要翻译：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。

7. 发明授权

US09337963B2 Transmission method and apparatus for multi-antenna retransmission 有权
标题翻译：用于多天线重传的传输方法和装置
公开(公告)号：US09337963B2
公开(公告)日：2016-05-10
申请号：US13266688
申请日：2010-04-27
申请人： Zheng Zhao , Xufeng Zheng
发明人： Zheng Zhao , Xufeng Zheng
IPC分类号： H04L27/00 , H03K9/06 , H04L5/12 , H04L1/18 , H04L1/06 , H04B7/06
CPC分类号： H04L1/1893 , H04B7/0613 , H04L1/06
摘要： A transmission method for multi-antenna retransmission is provided, comprising steps of: generating the bits to be transmitted by respective antennas; mapping the bits to be transmitted by the respective antennas into symbols; and multiplying by a constant the vector constituted by the mapped symbols transmitted by multiple antennas, wherein the resulting vector is orthogonal to the matrix constituted by the symbols previously transmitted by multiple antennas, and transmitting the orthogonal symbols. According to the method of the present invention, the remapped symbols transmitted by the respective antennas and the symbols previously transmitted by the respective antennas constitute a matrix that has an orthogonal property. The orthogonal property can be used to effectively detect signals. In addition, the method has a reception algorithm with low complexity and brings about significant performance gains over conventional methods.
摘要翻译：提供了一种用于多天线重传的传输方法，包括以下步骤：产生要被各个天线发射的比特; 将由各个天线发送的比特映射成符号; 并乘以由多个天线发射的映射符号构成的矢量，其中所得到的矢量与由先前由多个天线发射的符号构成的矩阵正交，并发送正交符号。根据本发明的方法，由各天线发送的重映射符号和由各个天线先前发送的符号构成具有正交特性的矩阵。正交特性可用于有效地检测信号。此外，该方法具有低复杂度的接收算法，并且比常规方法具有显着的性能增益。

8. 发明申请

US20090034586A1 TRANSMISSION SYSTEM, TRANSMISSION METHOD, RECEPTION SYSTEM, AND RECEPTION METHOD 失效
标题翻译：传输系统，传输方法，接收系统和接收方法
公开(公告)号：US20090034586A1
公开(公告)日：2009-02-05
申请号：US11909434
申请日：2006-03-29
申请人： Zheng Zhao , Jifeng Li
发明人： Zheng Zhao , Jifeng Li
IPC分类号： H04B1/707
CPC分类号： H04B7/0669 , H04B7/0678 , H04L1/0643
摘要： First normalizing means (12) normalizes first and second code streams (s1, s2). First spreading means (13) spreads the output of the first normalizing means (12). STTD coding means (14) subjects the first and second code streams (s1, S2) to STTD coding. Second normalizing means (15) normalizes the output of the STTD coding means (14). Second spreading means (16) spreads the output of the second normalizing means (15) by means of the same spreading code as that of the first normalizing means (12). Orthogonal transforming means (17) gives the negative signs to odd chips in a second path spread sequence of each code and exchanges the orders of the odd and even chips. Combining means (18) adds first and second spread sequences of the second path produced by orthogonally transforming the first and second spread sequences of the first path. With this, by using the orthogonality of the transmitted sequences at the receiving side, the reception signal can be detected with a lower complexity.
摘要翻译：第一归一化装置（12）对第一和第二码流进行归一化（s1，s2）。第一扩展装置（13）扩展第一归一化装置（12）的输出。 STTD编码装置（14）对第一和第二码流（s1，S2）进行STTD编码。第二归一化装置（15）对STTD编码装置（14）的输出进行归一化。第二扩展装置（16）通过与第一归一化装置（12）相同的扩展码来扩展第二归一化装置（15）的输出。正交变换装置（17）在每个代码的第二路径扩展序列中给出奇数码片的负号，并交换奇数和偶数码片的顺序。组合装置（18）添加通过对第一路径的第一和第二扩展序列进行正交变换而产生的第二路径的第一和第二扩展序列。由此，通过使用发送序列在接收侧的正交性，可以以较低的复杂度来检测接收信号。

9. 发明授权

US07181182B2 Method for steering a smart antenna for a WLAN using a self-monitored re-scan 有权
标题翻译：用于使用自我监视的重新扫描来指导WLAN的智能天线的方法
公开(公告)号：US07181182B2
公开(公告)日：2007-02-20
申请号：US11080297
申请日：2005-03-15
申请人： Inhyok Cha , Zheng Zhao , Thomas Eric Gorsuch , Ross L. Lintelman
发明人： Inhyok Cha , Zheng Zhao , Thomas Eric Gorsuch , Ross L. Lintelman
IPC分类号： H04B1/06
CPC分类号： H04B7/0408 , H04B7/0617 , H04B7/0695 , H04B7/086 , H04W16/28 , H04W84/12 , Y02D70/14
摘要： 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.
摘要翻译：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。

10. 发明申请

US20050221838A1 Method for steering smart antenna beams for a WLAN using MAC layer functions 有权
标题翻译：使用MAC层功能为WLAN调整智能天线波束的方法
公开(公告)号：US20050221838A1
公开(公告)日：2005-10-06
申请号：US11080039
申请日：2005-03-15
申请人： Inhyok Cha , Zheng Zhao , Thomas Gorsuch , Ross Lintelman
发明人： Inhyok Cha , Zheng Zhao , Thomas Gorsuch , Ross Lintelman
IPC分类号： H01Q3/00 , H04B1/06 , H04B7/04 , H04B7/06
CPC分类号： H04B7/0617 , H04B7/0408 , H04B7/0695 , Y02D70/142 , Y02D70/20 , Y02D70/444
摘要： 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.
摘要翻译：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。

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