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21. 发明授权

US07414986B2 System and method for controlling wireless LAN bandwidth allocation 有权
标题翻译：用于控制无线LAN带宽分配的系统和方法
公开(公告)号：US07414986B2
公开(公告)日：2008-08-19
申请号：US10497573
申请日：2003-07-31
申请人： Srinivas Kandala , John Kowalski , Yoshihiro Ohtani , Shugong Xu
发明人： Srinivas Kandala , John Kowalski , Yoshihiro Ohtani , Shugong Xu
IPC分类号： H04J3/00 , H04Q7/24
CPC分类号： H04W74/06 , H04W24/00 , H04W52/0216 , H04W52/287 , H04W52/50 , H04W74/002 , H04W84/12 , Y02D70/142
摘要： A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to the time-based bandwidth allocation; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC). Then, de-energizing devices in response to the polling schedule includes disengaging transmission and receiving functions in the minimum TXOP intervals between polling events, where the minimum TXOP interval is the inter-TXOP interval minus the TXOP jitter.
摘要翻译：提供了一种用于控制无线局域网（wLAN）中的带宽分配的系统和方法。该方法包括：以时基表示设备带宽分配; 响应于以时基表示带宽分配，监视网络通信; 并测量分配的带宽。该方法还可以包括：响应于基于时间的带宽分配来建立轮询调度; 并且响应于轮询时间表而使装置断电。表示基于时基的设备带宽分配包括建立：传输间机会（TXOP）间隔; 和TXOP抖动。这些字段以IEEE 802.11e发送规范（TSPEC）提供。然后，响应于轮询时间表去激活装置包括在轮询事件之间的最小TXOP间隔中分离发送和接收功能，其中最小TXOP间隔是TXOP间隔减去TXOP抖动。

22. 发明授权

US07330877B2 Devices, softwares and methods for rescheduling multi-party sessions upon premature termination of session 有权
标题翻译：在会话提前终止时重新安排多方会议的设备，软件和方法
公开(公告)号：US07330877B2
公开(公告)日：2008-02-12
申请号：US09823511
申请日：2001-03-30
申请人： Srinivas Kandala
发明人： Srinivas Kandala
IPC分类号： G06F15/16 , G06F15/173
CPC分类号： H04W72/1289
摘要： Devices, softwares and methods reschedule multi-party sessions upon premature termination of a wireless communication session. Upon sensing a premature termination, an access point transmits a rescheduling frame. All sessions are advanced in time, which saves time in the end, without leaving quiet times. In addition, the invention avoids a hidden node problem.
摘要翻译：设备，软件和方法在提前终止无线通信会话时重新安排多方会话。一旦检测到过早终止，接入点就发送一个重新安排的帧。所有会议都及时提前，节省时间到最后，不需要安静的时间。另外，本发明避免了隐藏节点的问题。

23. 发明授权

US07304973B2 IEEE 802.11 burst acknowledgement interface 有权
标题翻译： IEEE 802.11突发确认接口
公开(公告)号：US07304973B2
公开(公告)日：2007-12-04
申请号：US10610172
申请日：2003-06-30
申请人： Srinivas Kandala
发明人： Srinivas Kandala
IPC分类号： H04Q7/24 , H04J3/16
CPC分类号： H04L1/1854 , H04W28/18 , H04W80/02 , H04W84/12
摘要： A system and method are provided for defining a Burst ACK interface in an IEEE 802.11 network. The method comprising: using Burst ACK primitives to negotiate between peer station management entities (SMEs); establishing an interface between peer MAC entities associated with the SMEs; and, in response to negotiating with the Burst ACK primitives, using a Burst ACK protocol to communicate information between peer Quality of Service (QoS) stations (QSTAs) associated with the SMEs. Using a Burst ACK protocol to communicate information between peer QSTAs includes communicating between the peer MAC entities. In some aspects, establishing an interface between peer MAC entities includes each MAC entity: transceiving Burst ACK primitives with an associated SME; converting between Burst ACK primitives and physical layer communication MAC frames; and, transceiving communication physical layer MAC frames with a peer MAC entity, via the physical layer communication MAC frames.
摘要翻译：提供了一种用于在IEEE 802.11网络中定义突发ACK接口的系统和方法。该方法包括：使用突发ACK原语在对等站管理实体（SME）之间进行协商; 建立与中小企业关联的对等MAC实体之间的接口; 并且响应于与突发ACK原语进行协商，使用突发ACK协议在与中小型企业相关联的对等服务质量（QoS）站（QSTAs）之间传送信息。使用突发ACK协议在对等QST之间传送信息包括对等体MAC实体之间的通信。在一些方面，建立对等MAC实体之间的接口包括每个MAC实体：与关联的SME收发突发ACK原语; 在Burst ACK原语和物理层通信MAC帧之间进行转换; 以及经由物理层通信MAC帧与对等MAC实体收发通信物理层MAC帧。

24. 发明授权

US07239626B2 System clock synchronization in an ad hoc and infrastructure wireless networks 失效
标题翻译：在自组织和基础设施无线网络中的系统时钟同步
公开(公告)号：US07239626B2
公开(公告)日：2007-07-03
申请号：US10882918
申请日：2004-06-30
申请人： Srinivas Kandala , John Michael Kowalski , Richard Thomas Bennett
发明人： Srinivas Kandala , John Michael Kowalski , Richard Thomas Bennett
IPC分类号： H04Q7/24
CPC分类号： H04W56/001 , H04B1/7183 , H04J3/0664 , H04J3/067 , H04J3/0676 , H04N21/4305 , H04W84/18
摘要： A method of synchronizing clocks in the stations of ad hoc and infrastructure networks includes providing a time stamp field in a header; reading the header by all stations in a network; extracting the time stamp information from the header by each station in the network as time information; sending extracted time information to a station clock; and adjusting the station clock as a function of the extracted time information. A system for synchronizing clocks in the stations of ad hoc and infrastructure networks includes a DLL having a comparator for receiving the time stamp information and a low-pass filter having a long time-constant for adjusting the station clock in a gradual manner; a time stamp field in a header; and time information extracted from the time stamp information of the header by each station in the network.
摘要翻译：在同步和基础设施网络的站中同步时钟的方法包括：在报头中提供时间标记字段; 在网络中读取所有站点的标题; 从网络中的每个站的头部提取时间戳信息作为时间信息; 将提取的时间信息发送到站时钟; 以及根据提取的时间信息调整站时钟。用于同步自组织和基础设施网络的站中的时钟的系统包括具有用于接收时间戳信息的比较器的DLL和具有用于逐渐调整站时钟的长时间常数的低通滤波器; 标题中的时间戳字段; 以及从网络中的每个站从标题的时间戳信息中提取的时间信息。

25. 发明申请

US20050169233A1 System clock synchronization in an ad hoc and infrastructure wireless networks 失效
标题翻译：在自组织和基础设施无线网络中的系统时钟同步
公开(公告)号：US20050169233A1
公开(公告)日：2005-08-04
申请号：US10882918
申请日：2004-06-30
申请人： Srinivas Kandala , John Kowalski , Richard Bennett
发明人： Srinivas Kandala , John Kowalski , Richard Bennett
IPC分类号： H04B1/69 , H04J3/06 , H04L12/28 , H04L12/56 , H04W56/00 , H04W84/18 , H04J3/24
CPC分类号： H04W56/001 , H04B1/7183 , H04J3/0664 , H04J3/067 , H04J3/0676 , H04N21/4305 , H04W84/18
摘要： A method of synchronizing clocks in the stations of ad hoc and infrastructure networks includes providing a time stamp field in a header; reading the header by all stations in a network; extracting the time stamp information from the header by each station in the network as time information; sending extracted time information to a station clock; and adjusting the station clock as a function of the extracted time information. A system for synchronizing clocks in the stations of ad hoc and infrastructure networks includes a DLL having a comparator for receiving the time stamp information and a low-pass filter having a long time-constant for adjusting the station clock in a gradual manner; a time stamp field in a header; and time information extracted from the time stamp information of the header by each station in the network.
摘要翻译：在同步和基础设施网络的站中同步时钟的方法包括：在报头中提供时间标记字段; 在网络中读取所有站点的标题; 从网络中的每个站的头部提取时间戳信息作为时间信息; 将提取的时间信息发送到站时钟; 以及根据提取的时间信息调整站时钟。用于同步自组织和基础设施网络的站中的时钟的系统包括具有用于接收时间戳信息的比较器的DLL和具有用于逐渐调整站时钟的长时间常数的低通滤波器; 标题中的时间戳字段; 以及从网络中的每个站从标题的时间戳信息中提取的时间信息。

26. 发明申请

US20050096001A1 Data unit detection including antenna diversity 有权
公开(公告)号：US20050096001A1
公开(公告)日：2005-05-05
申请号：US11006855
申请日：2004-12-07
申请人： Srinivas Kandala
发明人： Srinivas Kandala
IPC分类号： H04B7/08 , H04B1/06 , H04B7/00 , H04B7/10 , H04L1/02
CPC分类号： H04B7/0808
摘要： A system adjusts a receiving device in response to sensing symbols. An automatic gain control is adjusted in response receiving a first symbol of a data unit from a first antenna. After adjusting the automatic gain control at least a second and a third symbol of the data unit are received, and in response thereto (1) a first energy of at least one of the second and third symbols is calculated, (2) a first frequency offset of at least one of the second and third symbols is calculated, and (3) a first temporal offset of at least one of the second and third symbols is calculated. The automatic gain control in response receiving a fourth symbol of the data unit from a second antenna is received. After adjusting the automatic gain control at least a fifth and a sixth symbol of the data unit is calculated, and in response thereto (1) a second energy of at least one of the fifth and sixth symbols is calculated, (2) a second frequency offset of at least one of the fifth and sixth symbols is calculated, and (3) a second temporal offset of at least one of the fifth and sixth symbols is calculated. At least one of the first and second antenna is selected based upon a comparison between the first and second energy. In this manner, antenna diversity selection may be performed within a limited duration of available symbols.

27. 发明授权

US09450711B2 Method and apparatus for extended reverse direction grant in a wireless local area network (WLAN) 有权
标题翻译：在无线局域网（WLAN）中扩展反向授权的方法和装置
公开(公告)号：US09450711B2
公开(公告)日：2016-09-20
申请号：US12361773
申请日：2009-01-29
申请人： Vinay Sridhara , Sanjiv Nanda , Santosh P. Abraham , Srinivas Kandala
发明人： Vinay Sridhara , Sanjiv Nanda , Santosh P. Abraham , Srinivas Kandala
IPC分类号： H04W74/06 , H04W84/12 , H04L1/16 , H04L1/18 , H04L1/00
CPC分类号： H04L1/1854 , H04L1/1614 , H04L2001/0093 , H04W74/06 , H04W84/12
摘要： Systems, methods, and apparatus for extended reverse direction grant in a WLAN are provided. In one aspect, a method for communication using a channel that is common to a plurality of nodes is provided. The method includes transmitting first data to the plurality of nodes using a first transmission resource. The first data is transmitted within a transmit opportunity time interval and comprises a first indicator. The method further includes receiving, in response to the first indicator, at least one data transmission from at least one of the nodes, respectively. The at least one data transmitted using at least one second transmission resource, respectively, and is received within the transmit opportunity time interval.
摘要翻译：提供了在WLAN中用于扩展反向授权的系统，方法和装置。一方面，提供了使用多个节点共有的信道进行通信的方法。所述方法包括使用第一传输资源向所述多个节点发送第一数据。第一数据在发送机会时间间隔内发送并且包括第一指示符。该方法还包括分别响应于第一指示符从至少一个节点接收至少一个数据传输。所述至少一个数据分别使用至少一个第二传输资源传输，并在发送机会时间间隔内被接收。

28. 发明授权

US09203560B2 Methods and apparatus for delayed block acknowledgement in a wireless local area network (WLAN) 有权
标题翻译：用于无线局域网（WLAN）中延迟块确认的方法和装置
公开(公告)号：US09203560B2
公开(公告)日：2015-12-01
申请号：US12277770
申请日：2008-11-25
申请人： Vinay Sridhara , Sanjiv Nanda , Srinivas Kandala
发明人： Vinay Sridhara , Sanjiv Nanda , Srinivas Kandala
IPC分类号： H04J3/00 , H04L1/16 , H04L1/18 , H04L1/00
CPC分类号： H04L1/1685 , H04L1/1635 , H04L1/1854 , H04L1/1887 , H04L2001/0093
摘要： Methods and apparatus for delayed block acknowledgments in a WLAN. In an aspect, a method is provided for communication with one or more nodes. The method includes transmitting to the one or more nodes a block comprising data and a first bit indicating no acknowledgements for the data are to be transmitted from the one or more nodes. The method also includes determining whether a selected time location within a transmit time duration has been reached, wherein if the selected time location has been reached, transmitting to the one or more nodes a second bit indicating that the one or more nodes are to transmit one or more acknowledgements, respectively, for the data. The method also includes receiving at least one acknowledgment for the data within a remaining portion of the transmit time duration.
摘要翻译： WLAN中延迟块确认的方法和装置。在一方面，提供了一种用于与一个或多个节点进行通信的方法。该方法包括向一个或多个节点发送包含数据的块，并且从一个或多个节点发送指示不对数据进行确认的第一比特。该方法还包括确定是否已经达到发送持续时间内的所选择的时间位置，其中如果已经到达所选择的时间位置，则向一个或多个节点发送指示一个或多个节点要发送一个的第二比特或更多的确认数据。该方法还包括在传输持续时间的剩余部分内接收数据的至少一个确认。

29. 发明申请

US20130070668A1 APPARATUS AND METHOD FOR TRANSMISSION AND RECOVERY MODES FOR AN RTS/CTS SYSTEM THAT UTILIZES MULTICHANNELS 有权
标题翻译：用于使用多通道的RTS / CTS系统的传输和恢复模式的装置和方法
公开(公告)号：US20130070668A1
公开(公告)日：2013-03-21
申请号：US13235078
申请日：2011-09-16
申请人： Simone Merlin , Guido Robert Frederiks , Srinivas Kandala , Vincent Knowles Jones, IV
发明人： Simone Merlin , Guido Robert Frederiks , Srinivas Kandala , Vincent Knowles Jones, IV
IPC分类号： H04W4/00
CPC分类号： H04W74/0816 , H04L12/413 , H04W74/08 , H04W84/12
摘要： A method, apparatus and computer readable medium for an RTS/CTS system that utilizes a plurality of channels for data transfer, includes sending, by a first device, an RTS frame over the plurality of channels; receiving, by a second device, the RTS frame and outputting a CTS frame to the first device based on receipt of the RTS frame, the CTS frame being output over at least one of the plurality of channels; setting, by each device within a network that receives the RTS frame, a network allocation vector (NAV) to a time duration that is based in part on information included in the RTS frame; and transmitting, by the first device, data to the second device within the time duration set by the NAV using the at least one of the plurality of channels.
摘要翻译：一种利用多个信道进行数据传输的RTS / CTS系统的方法，装置和计算机可读介质，包括由第一设备在多个信道上发送RTS帧; 由第二设备接收RTS帧，并且基于接收到所述RTS帧向所述第一设备输出CTS帧，所述CTS帧通过所述多个信道中的至少一个信道被输出; 将接收到RTS帧的网络内的每个设备的网络分配向量（NAV）设置为部分基于包括在RTS帧中的信息的持续时间; 以及由所述第一设备在由所述NAV使用所述多个信道中的所述至少一个信道设置的持续时间内将数据发送到所述第二设备。

30. 发明授权

US07852823B2 Communication management method, communication terminal, communication management program, recording medium containing the communication management program, and communication system 失效
标题翻译：通信管理方法，通信终端，通信管理程序，包含通信管理程序的记录介质和通信系统
公开(公告)号：US07852823B2
公开(公告)日：2010-12-14
申请号：US10489731
申请日：2002-09-12
申请人： Ken Nakashima , Yoshihiro Ohtani , Toru Ueda , Srinivas Kandala
发明人： Ken Nakashima , Yoshihiro Ohtani , Toru Ueda , Srinivas Kandala
IPC分类号： H04B7/212
CPC分类号： H04L1/18 , H04W72/1278 , H04W74/002 , H04W84/12
摘要： When a transmission station having a voluntary transmission right transmits FINALL FRAME as a TXOP ending frame to HC, the HC transmits an acknowledgement frame ACK after SIFS following the reception of FINAL FRAME. Here, when the transmitting station has detected that no frame transmission is performed over the communication network from any other ESTAs in PIFS after the transmission of FINAL FRAME, FINAL FRAME is retransmitted in DIFS after the transmission of FINAL FRAME. By performing such a communication management, it is possible to accurately manage a voluntary transmission right even when the communication medium has a low reliability in a network in which one network pathway is time-shared by a plurality of communication apparatuses.
摘要翻译：当具有自愿发送权限的发送站发送FINALL FRAME作为TXOP结束帧到HC时，HC在接收到FINAL FRAME之后在SIFS之后发送确认帧ACK。这里，当发送站检测到在发送FINAL FRAME之后，PIFS中的任何其他ESTAs在通信网络上没有执行帧传输时，在FINAL FRAME传输之后，在DIFS中重新发送FINAL FRAME。通过进行这样的通信管理，即使通信介质在多个通信装置中共享一个网络路径的网络中的可靠性低的情况下，也能够正确地管理自愿发送权。

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