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1. 发明申请

US20070121777A1 Methods to resolve tsf timer ambiguity of ieee 802.11e schedule element 有权
标题翻译：解决ieee 802.11e调度元素的tsf定时器模糊度的方法
公开(公告)号：US20070121777A1
公开(公告)日：2007-05-31
申请号：US10572925
申请日：2004-09-20
申请人： Javier Del Prado Pavon , Amjad Soomro , Sai Nandagopalan , Stefan Mangold , Zhun Zhong
发明人： Javier Del Prado Pavon , Amjad Soomro , Sai Nandagopalan , Stefan Mangold , Zhun Zhong
IPC分类号： G04F10/04
CPC分类号： H04W56/00 , H04W72/12
摘要： A plurality of methods, computer program product, and apparatus that use a lower 32 bit field of a 64-bit 802.11 TSF timer, so as to encode the reference time instant without the ambiguity as to whether there the reference time is referring to a future time or a past time. According to an aspect of the present invention, the fact that the low order 32 bits of the TSF timer wraps over in about 71 minutes is exploited to remove any ambiguity in the reference times contained in the Schedule Element frame. One method employs an algorithm base on distance between two reference points to determine whether the timer has wrapped around a time period, and another method uses a delay interval or a timeout to determine whether or not the TSF timer is wrapped or unwrapped. Another method includes determining whether an absolute value of X−O is less than, or greater than or equal to maximum value M/2.
摘要翻译：使用64位802.11 TSF定时器的低32位字段的多种方法，计算机程序产品和装置，以便对参考时刻进行编码，而不存在关于参考时间是指未来的歧义时间或过去的时间。根据本发明的一个方面，利用了大约71分钟内TSF定时器的低阶32位包裹的事实来消除包含在时间表元素帧中的参考时间中的任何歧义。一种方法采用基于两个参考点之间的距离的算法来确定定时器是否已经缠绕了一段时间，另一种方法使用延迟间隔或超时来确定TSF定时器是否被包装或解包。另一方法包括确定X-O的绝对值是否小于或大于或等于最大值M / 2。

2. 发明申请

US20060120341A1 Transmitting data frames with less interframe space (ifs) time 无效
标题翻译：发送具有较少帧间间隔（ifs）时间的数据帧
公开(公告)号：US20060120341A1
公开(公告)日：2006-06-08
申请号：US10559902
申请日：2004-07-13
申请人： Javier Del Prado Pavon , Sai Nandagopalan
发明人： Javier Del Prado Pavon , Sai Nandagopalan
IPC分类号： H04J3/00
CPC分类号： H04J3/0682
摘要： A method of transmitting data frames over a data network comprises a step of sending said data frames from a transmitter to a receiver with an Inter Frame Space (IFS) time, which does not include a time (T2) that the transmitter needs to change from a receiver state to a transmitter state, thus substantially increasing the transmission efficiency.
摘要翻译：一种通过数据网络发送数据帧的方法包括以下步骤：将发射机发送到具有帧间隔（IFS）时间的接收机的所述数据帧，其不包括发射机需要改变的时间（T 2）从接收机状态到发射机状态，从而显着提高传输效率。

3. 发明申请

US20060014492A1 Ieee 802.11e mac signaling to support schedule qos 有权
标题翻译： Ieee 802.11e mac信令支持时间表qos
公开(公告)号：US20060014492A1
公开(公告)日：2006-01-19
申请号：US10534418
申请日：2003-10-27
申请人： Javier Del Prado Pavon , Sai Nandagopalan
发明人： Javier Del Prado Pavon , Sai Nandagopalan
IPC分类号： H04B7/00
CPC分类号： H04W72/1278 , H04L47/14 , H04L47/24 , H04W72/1236 , H04W74/02 , H04W84/12 , H04W88/14
摘要： The Station Management Entity (SME) 202 and/or Media Access Control (MAC) SubLayer Management Entity (MLME) 201 within a Hybrid Controller (HC) or wireless station (WSTA) 106, 109 for an IEEE 802.11 wireless data communications system 100 employ primitives in connection with a Schedule Quality of Service (QoS) Action frame. The primitives include: a request primitive formulated by the HC's SME 202 using the WSTA 106, 109 address and the Schedule Element from the Schedule QoS Action frame for transmission to the HC's MLME 201; a confirm primitive formulated by the HC's MLME 201 using a result code for transmission to the HC's SME 202; and an indication primitive formulated by the WSTA's MLME 201 using the Schedule Element for transmission to the WSTA's SME 202.
摘要翻译：用于IEEE 802.11无线数据通信系统100的混合控制器（HC）或无线站（WSTA）106,109内的站管理实体（SME）202和/或媒体访问控制（MAC）子层管理实体（MLME）201使用与计划服务质量（QoS）行动框架相关的原语。原语包括：由HC的SME 202使用WSTA 106,109地址和来自“调度QoS动作”框架的调度元素制定的请求原语，以传输到HC的MLME 201; 由HC的MLME 201制定的确认原则，使用结果代码传输给HC的SME 202; 以及由WSTA的MLME 201使用附表要素提交给WSTA的SME 202的指示原语。

4. 发明申请

US20070019591A1 Fair rate allocation on an ieee 802.11e communication medium 有权
标题翻译：在802.11e通信媒体上公平分配费率
公开(公告)号：US20070019591A1
公开(公告)日：2007-01-25
申请号：US10570538
申请日：2004-08-23
申请人： Chun Chou , Sai Nandagopalan , Javier Del Prado Pavon
发明人： Chun Chou , Sai Nandagopalan , Javier Del Prado Pavon
IPC分类号： H04B7/212
CPC分类号： H04W74/0816 , H04W28/10 , H04W74/08 , H04W84/12
摘要： Wireless stations (108-1-108-N) contending for exclusive access for a predetermined period of time (S232) to transmit on a communication medium (112) are regulated by a common external controller (104) using a single timing parameter (S204). Attempts at transmission access are preceded by respective delays that are expired simultaneously and at a common rate by the stations at times when the stations sense the medium to be idle (S224). The delays are pseudo-randomly selected to avoid collisions among stations in their respective access attempts (S208). Default, initial values of the respective delays (S204) applied to the stations, when multiplied by the respective expected number of transmission attempts by the stations over the long term over periods of time when no transmission attempt is unsuccessful, yield respective products equal to a constant value common to all stations (S312). The default values therefore serve as a knob by which the controller regulates air time opportunity.
摘要翻译：在通信介质（112）上传送预定时间段（S 232）的争用独占访问的无线站（108-1-108-N）由公共外部控制器（104）使用单个定时参数 S 204）。在传输接入的尝试之前是相应的延迟，这些延迟在站感测到介质空闲的时候同时和以站的通用速率通过（S 224）。延迟是伪随机选择的，以避免各个接入尝试中的站间的冲突（S 208）。默认情况下，应用于站的相应延迟的初始值（S 204）当乘以在不发送尝试不成功的时间段内长时间站的相应预期发送次数时，产生等于所有站共用的常数值（S 312）。因此，默认值用作控制器调节空气时间机会的旋钮。

5. 发明申请

US20060153203A1 Concatenated frame structure for data transmission 有权
公开(公告)号：US20060153203A1
公开(公告)日：2006-07-13
申请号：US10559840
申请日：2004-06-10
申请人： Javier Del Prado Pavon , Sai Nandagopalan
发明人： Javier Del Prado Pavon , Sai Nandagopalan
IPC分类号： H04L12/56
CPC分类号： H04W28/06 , H04W80/02 , H04W84/12
摘要： A method of transmitting data frames over a data network with a MAC protocol, such as a wireless network using IEEE 802.11 protocol, in which a plural number of MAC (Media Access Control) data frames are transmitted with only a single PLCP (Physical Layer Control Procedure) overhead including PLCP preamble and header. In the frame structure used in the method, a single concatenated MAC header is added to the plurality of MAC data frames.

6. 发明申请

US20060056296A1 System and method for using a scheduler based on virtual frames 审中-公开
标题翻译：基于虚拟帧使用调度器的系统和方法
公开(公告)号：US20060056296A1
公开(公告)日：2006-03-16
申请号：US10537594
申请日：2003-12-03
申请人： Sai Nandagopalan , Sunghyun Choi , Atul Garg
发明人： Sai Nandagopalan , Sunghyun Choi , Atul Garg
IPC分类号： H04L12/26
CPC分类号： H04W72/1236 , H04W28/24 , H04W72/12 , H04W74/06
摘要： Disclosed is a method and system based on virtual frames for enabling a QAP to seamlessly operate between granting polls for upstream and sidestream traffic while sending downstream frames. A key feature of the scheduling method of the invention is that the scheduling method generates virtual frames to create transmission opportunity durations for granting polls for the upstream and sidestream traffic.
摘要翻译：公开了一种基于虚拟帧的方法和系统，用于使QAP能够在发送下游帧的同时为上游和侧流业务轮询提供无缝操作。本发明的调度方法的一个关键特征在于，调度方法生成虚拟帧，以创建用于为上游和侧流业务进行轮询的发送机会持续时间。

7. 发明申请

US20070223508A1 Method and Apparatus to Provide Fair Spectrum Sharing in Multiple Physical Transmission Rate Wireless Systems 审中-公开
标题翻译：在多个物理传输速率无线系统中提供公平频谱共享的方法和装置
公开(公告)号：US20070223508A1
公开(公告)日：2007-09-27
申请号：US11572961
申请日：2005-07-25
申请人： Sai Nandagopalan
发明人： Sai Nandagopalan
IPC分类号： H04L12/28 , H04Q7/36
CPC分类号： H04W16/14 , H04W16/16 , H04W28/20
摘要： A method of providing spectrum allocation fairness in a wireless network includes providing an unlicensed communication spectrum. The method also includes co-locating a plurality of wireless systems (101, 102, 103), wherein at least two of the subsystems have different bandwidth requirements and channel capacities. In addition, the method includes determining the bandwidth requirements of each of the systems and allocating a bandwidth (303, 304, 305) or a communication period (311, 312, 313) to each of the systems for a particular interval. A wireless system (100) that provides spectrum allocation fairness is also described.
摘要翻译：在无线网络中提供频谱分配公平性的方法包括提供未许可的通信频谱。该方法还包括共同定位多个无线系统（101,102,103），其中至少两个子系统具有不同的带宽要求和信道容量。此外，该方法包括确定每个系统的带宽要求，并且为特定间隔向每个系统分配带宽（303,304,305）或通信周期（311,312,313）。还描述了提供频谱分配公平性的无线系统（100）。

8. 发明申请

US20060187895A1 Method access point and program product for providing bandwidth and airtime fairness in wireless networks 有权
标题翻译：方法接入点和程序产品，用于在无线网络中提供带宽和通话时间公平性
公开(公告)号：US20060187895A1
公开(公告)日：2006-08-24
申请号：US10566513
申请日：2004-07-29
申请人： Sai Nandagopalan
发明人： Sai Nandagopalan
IPC分类号： H04J3/00
CPC分类号： H04W72/1257 , H04L47/14 , H04W28/06 , H04W28/065 , H04W72/1273 , H04W84/12
摘要： The present invention provides a method (100), access point (20) and program product (35) for providing airtime and bandwidth fairness in wireless networks. To provide bandwidth fairness, a more fragment bit is set in a set of packets (46C) received by an access point (20) so that the packets of the set of packets (46C) can be transmitted to its destination (46C) successively (i.e., without back-off). To provide airtime fairness, upon receiving a packet (34) destined for a wireless station (22A), the access point (20) will calculate an airtime requirement for transmitting the packet (34), set a time counter (50) based on the airtime requirement. Thereafter, it will be determined whether the packet (34) can be transmitted to wireless station 22A before the time counter (50) expires. If not, transmission of the packet (34) will either not occur, or the packet (34) will be split into a set of fragments (48) for transmission.
摘要翻译：本发明提供一种在无线网络中提供通话时间和带宽公平性的方法（100），接入点（20）和节目产品（35）。为了提供带宽公平性，在由接入点（20）接收的一组分组（46C）中设置更多的分段比特，使得该组分组（46C）中的分组可以被发送到其目的地（46C ）（即不退货）。为了提供广播时间公平性，接收点（20）在接收到去往无线站（22A）的分组（34）时，将计算发送分组（34）的通话时间要求，基于通话时间要求。此后，将确定在时间计数器（50）到期之前是否可以将数据包（34）发送到无线站点22A。如果不是，则分组（34）的传输将不会发生，或者分组（34）将被分割成用于传输的一组分段（48）。

9. 发明申请

US20070025289A1 Method and apparatus to provide air time fairness in multiple physical transmission rate wireless systems 有权
标题翻译：在多个物理传输速率无线系统中提供空中时间公平的方法和装置
公开(公告)号：US20070025289A1
公开(公告)日：2007-02-01
申请号：US10565664
申请日：2004-07-22
申请人： Sai Nandagopalan
发明人： Sai Nandagopalan
IPC分类号： H04Q7/00
CPC分类号： H04W72/1236 , H04W28/065 , H04W28/10 , H04W28/20
摘要： A method for providing bandwidth fairness in a wireless network includes determining bandwidth requirement for a particular service interval for each of a plurality wireless stations in a network. The method also includes determining an allocated transmission time for each of the plurality of wireless stations based on a minimum physical transmission rate. Additionally the illustrative method includes fragmenting a packet of at least one of the wireless stations if the at least one wireless station transmits at other transmission rates that are less than the minimum physical transmission rate. An apparatus is adapted to effect the illustrative method.
摘要翻译：一种用于在无线网络中提供带宽公平性的方法包括确定网络中的多个无线站中的每一个的特定服务间隔的带宽需求。该方法还包括基于最小物理传输速率来确定多个无线站中的每一个的分配的传输时间。另外，如果至少一个无线站以小于最小物理传输速率的其他传输速率传输，则说明性方法包括分段至少一个无线站的分组。适于实现说明性方法的装置。

10. 发明申请

US20060052088A1 Scheduler system and method thereof 有权
公开(公告)号：US20060052088A1
公开(公告)日：2006-03-09
申请号：US10532748
申请日：2003-10-10
申请人： Javier Pavon , Sai Nandagopalan , Amjad Soomro
发明人： Javier Pavon , Sai Nandagopalan , Amjad Soomro
IPC分类号： H04Q7/38
CPC分类号： H04W72/1284 , H04L47/10 , H04W72/1205 , H04W84/12
摘要： Disclosed is a method and system based on MAC frames for enabling a QAP to seamlessly operate between granting polls for upstream and sidestream traffic while sending downstream frames. The inventive scheduling method uses a minimum set of mandatory TSPEC parameters to generate a schedule, which provides minimum performance requirement in wireless local area networks (WLANs).

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