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21. 发明授权

US08014326B2 Joint carrier allocation and time sharing for OFDMA/TDMA networks 有权
标题翻译： OFDMA / TDMA网络的联合载波分配和时间共享
公开(公告)号：US08014326B2
公开(公告)日：2011-09-06
申请号：US12359470
申请日：2009-01-26
申请人： Zafer Sahinoglu , Yi Huang , Qinghe Du , Zhifeng Tao , Ghulam Bhatti , Jinyun Zhang
发明人： Zafer Sahinoglu , Yi Huang , Qinghe Du , Zhifeng Tao , Ghulam Bhatti , Jinyun Zhang
IPC分类号： H04B7/185 , H04B7/24 , H04B7/00 , H04W4/00 , H04J3/24
CPC分类号： H04L5/0007 , H04L5/0037 , H04L5/006 , H04L5/0064 , H04W72/042 , H04W72/0473 , Y02D70/146
摘要： A method and system provide multiple-access control and frequency band allocation, and transmission time sharing among multiple users in orthogonal frequency-division multiple-access (OFDMA) and time-division multiple-access (TDMA) networks. The method can be applied to uplinks and downlinks of multi-user, multi-carrier communication networks. Under a total transmission-power minimization constraint, the method can allocate carriers and transmission time to users optimally, and at the same time, can guarantee a data rate or equivalently a latency requirement of each user.
摘要翻译：一种方法和系统提供多路访问控制和频带分配，以及在正交频分多址（OFDMA）和时分多址（TDMA）网络中的多个用户之间的传输时间共享。该方法可以应用于多用户，多载波通信网络的上行链路和下行链路。在总传输功率最小化约束条件下，该方法可以最佳地向用户分配载波和传输时间，同时可以保证每个用户的数据速率或等效的等待时间要求。

22. 发明授权

US07936709B2 Distributed beacon enabled wireless networks 有权
标题翻译：分布式信标启用无线网络
公开(公告)号：US07936709B2
公开(公告)日：2011-05-03
申请号：US12362217
申请日：2009-01-29
申请人： Ghulam Bhatti , Zafer Sahinoglu
发明人： Ghulam Bhatti , Zafer Sahinoglu
IPC分类号： H04J3/08 , H04B7/212
CPC分类号： H04W28/06 , H04W48/08 , H04W72/04 , H04W84/18
摘要： In a wireless network that includes multiple nodes, each periodic announcement cycle of a communication schedule is partitioned into a set of time slots, including a set of management time slots, a set of beacon time slots, and a set of superframe time slots. Management frames are broadcast during the management slot to specify beacons. Beacons are transmitted during the beacon slots to specify when to transmit the superframes during the superframe time slots.
摘要翻译：在包括多个节点的无线网络中，将通信调度的每个周期性通知周期划分成一组时隙，包括一组管理时隙，一组信标时隙和一组超帧时隙。管理帧在管理槽中广播，以指定信标。在信标时隙期间发送信标，以指定何时在超帧时隙期间发送超帧。

23. 发明授权

US07885244B2 Hybrid multiple access method and system in wireless networks with extended content free access period 有权
标题翻译：混合多址接入方式和系统在无线网络中具有扩展的内容自由访问周期
公开(公告)号：US07885244B2
公开(公告)日：2011-02-08
申请号：US12345211
申请日：2008-12-29
申请人： Ghulam Bhatti , Zafer Sahinoglu
发明人： Ghulam Bhatti , Zafer Sahinoglu
IPC分类号： H04W4/00
CPC分类号： H04W74/0808 , H04L1/1614 , H04L1/1621 , H04L1/1887 , H04W48/08 , H04W72/0446 , H04W74/02 , H04W88/06
摘要： A method for communicating in a network including a coordinator node and a set of leaf nodes transmits periodically, from the coordinator node to the set of leaf nodes, a beacon defining a superframe, wherein the supper frame includes an active period and an inactive period, and wherein the active period includes a first contention access period (CAP-1), a first contention free period (CFP-1), a first group acknowledgement (GACK-1), a second CFP-2, a second GACK-2, and a second CAP-2, and wherein each CFP includes a guaranteed time slot (GTS) assigned to each leaf node. Then, each leaf node transmits to the coordinator node only during the GTS assigned to the leaf node during each CFP.
摘要翻译：在包括协调器节点和一组叶节点的网络中进行通信的方法，从协调器节点周期性地发送定义超帧的信标，其中，所述超帧包括活动周期和非活动时段，并且其中所述活动时段包括第一争用访问时段（CAP-1），第一无争用时段（CFP-1），第一组确认（GACK-1），第二CFP-2，第二GACK-2，和第二CAP-2，并且其中每个CFP包括分配给每个叶节点的保证时隙（GTS）。然后，每个叶节点仅在每个CFP期间分配给叶节点的GTS期间传送到协调器节点。

24. 发明授权

US07822098B2 Transmitting signals for time of arrival estimation 有权
标题翻译：发送信号到达时间估计
公开(公告)号：US07822098B2
公开(公告)日：2010-10-26
申请号：US11577129
申请日：2005-04-22
申请人： Zafer Sahinoglu
发明人： Zafer Sahinoglu
IPC分类号： H04B1/00
CPC分类号： H04B1/71637 , G01S5/0221 , G01S13/76 , H04B17/318 , H04B17/336 , H04B17/345
摘要： A method generates a radio signal to be used for ranging. For each of one of multiple frames to be transmitted as a ranging symbol, a first time interval and a second time interval are allocated. The ranging symbol is then transmitted as a set of pulses in each of the frames only during the first time interval, and the second time interval has a length to reduces inter-frame interference.
摘要翻译：一种方法产生用于测距的无线电信号。对于要作为测距符号发送的多个帧中的每一个中的每一个，分配第一时间间隔和第二时间间隔。然后，测距符号仅在第一时间间隔内作为每个帧中的一组脉冲发送，并且第二时间间隔具有减小帧间干扰的长度。

25. 发明申请

US20100260276A1 Zero Correlation Zone Based Preamble for Oversampled OFDM Networks in URWIN 有权
标题翻译：基于零相关区域的URWIN中过采样OFDM网络的前导码
公开(公告)号：US20100260276A1
公开(公告)日：2010-10-14
申请号：US12420629
申请日：2009-04-08
申请人： Philip V. Orlik , Qinghe Du , Chunjie Duan , Zafer Sahinoglu
发明人： Philip V. Orlik , Qinghe Du , Chunjie Duan , Zafer Sahinoglu
IPC分类号： H04L27/28
CPC分类号： H04L27/2631 , H04J13/0055 , H04J13/14 , H04L27/2613 , H04L27/2644 , H04L27/2652 , H04L27/2663 , H04L27/2671 , H04L27/2675 , H04L27/2692
摘要： In an oversampled orthogonal frequency-division multiplexing (OFDM) orthogonal network, the preamble used for time synchronization does not have an ideal autocorrelation function due to guard bands, which degrade the accuracy of symbol timing. Therefore, a zero-correlation-zone (ZCZ) based preamble is used for time synchronization. Across correlation function (CCF) used for time synchronization is forced to 0 within a certain region around a main lobe. The length of the ZCZ is guaranteed to be larger than a cyclic prefix length of OFDM data symbols synchronization accuracy.
摘要翻译：在过采样正交频分复用（OFDM）正交网络中，用于时间同步的前导码由于保护频带而不具有理想的自相关函数，这降低了符号定时的精度。因此，基于零相关区（ZCZ）的前导码用于时间同步。用于时间同步的相关函数（CCF）在主瓣周围的某个区域内强制为0。确保ZCZ的长度大于OFDM数据符号同步精度的循环前缀长度。

26. 发明申请

US20090238293A1 OFDMA Based Medium Access Control and Frame Structure Design for Industrial Applications 有权
标题翻译：基于OFDMA的媒体访问控制和工业应用的框架结构设计
公开(公告)号：US20090238293A1
公开(公告)日：2009-09-24
申请号：US12347087
申请日：2008-12-31
申请人： Ghulam Bhatti , Zafer Sahinoglu , Yi Huang , Jinyun Zhang
发明人： Ghulam Bhatti , Zafer Sahinoglu , Yi Huang , Jinyun Zhang
IPC分类号： H04L27/28 , H04J3/00
CPC分类号： H04L1/1685 , H04L1/1614 , H04L1/1621 , H04L1/1887 , H04L5/0007 , H04L5/0037 , H04L5/0053 , H04L27/2601 , H04L2001/0093 , H04W48/08 , H04W74/0808 , H04W88/06
摘要： A network includes a master and a set of slaves that communicate orthogonal frequency-division multiplexing (OFDM) and time division multiple access (TDMA) symbols on sub-carriers. A master broadcasts to the set of slaves using downlinks and all of the sub-carriers, a broadcast polling packet including data packets for each slave and sub-carrier assignments for the slaves. Each slave, in response to receiving the downlink polling packet, transmits simultaneously a response packet to the master using uplinks and the assigned sub-carriers. The master then transmits to the set of slave using the downlinks and all of the sub-carriers, a group acknowledgement packet, wherein the broadcast polling packet, the response packet, and the group acknowledgement packet comprise one superframe in one communication cycle, and wherein the broadcasting on the downlinks and the transmitting on the uplinks are disjoint in time.
摘要翻译：网络包括在子载波上传送正交频分复用（OFDM）和时分多址（TDMA）符号的主机和一组从机。主机使用下行链路和所有子载波来广播到一组从站，包括用于每个从站的数据分组的广播轮询分组以及从站的副载波分配。响应于接收到下行链路轮询分组，每个从机使用上行链路和所分配的子载波同时向主机发送响应分组。然后，主机然后使用下行链路和所有子载波（其中广播轮询分组，响应分组和组确认分组在一个通信周期中包括一个超帧）发送到所述一组从机，并且其中在下行链路上的广播和在上行链路上的发送是不相交的。

27. 发明授权

US07414977B2 Power and delay sensitive ad-hoc communication networks 有权
标题翻译：功率和延迟敏感的自组织通信网络
公开(公告)号：US07414977B2
公开(公告)日：2008-08-19
申请号：US10722031
申请日：2003-11-25
申请人： Philip Orlik , Zafer Sahinoglu , Jinyun Zhang
发明人： Philip Orlik , Zafer Sahinoglu , Jinyun Zhang
IPC分类号： G08C17/00
CPC分类号： H04W40/10 , H04L45/02 , H04L45/121 , H04W40/28 , H04W84/18 , Y02D30/20 , Y02D70/22 , Y02D70/326
摘要： An ad-hoc wireless communication network includes multiple nodes. Each node maintains a routing table. The routing table is constructed by broadcasting route request packets from a source node. The request packet includes an address of a destination node. Intermediate nodes in the network receiving the request packet, determine power and delay cost associated with the intermediate node participating in the route. If the cost is less than a threshold value, then the intermediate node participates in the routing of packets for other nodes. The intermediate node then sends a reply packet back to the source node. The reply packet includes the intermediate node addresses, as well as the power and delay costs. The source can thus construct the routing table. The source node can select a particular node for transferring application data packets based on either the power cost, the delay cost or both costs.
摘要翻译：自组织无线通信网络包括多个节点。每个节点维护路由表。路由表是通过从源节点广播路由请求报文来构建的。请求分组包括目的地节点的地址。接收请求分组的网络中的中间节点确定与参与路由的中间节点相关联的功率和延迟成本。如果成本小于阈值，则中间节点参与其他节点的分组路由。然后，中间节点将回复分组发送回源节点。应答包包括中间节点地址，以及功率和延迟成本。因此，源可以构建路由表。源节点可以基于电力成本，延迟成本或两者成本来选择用于传送应用数据分组的特定节点。

28. 发明申请

US20060209922A1 Single-pulse and multi-pulse transmitted reference impulse radio systems with energy detecting receivers 失效
标题翻译：具有能量检测接收器的单脉冲和多脉冲发射参考脉冲无线电系统
公开(公告)号：US20060209922A1
公开(公告)日：2006-09-21
申请号：US11054318
申请日：2005-02-10
申请人： Zafer Sahinoglu , Sinan Gezici
发明人： Zafer Sahinoglu , Sinan Gezici
IPC分类号： H04B1/00
CPC分类号： H04B1/7176 , H04B1/71637 , H04B1/719
摘要： A transmitted reference ultra-wide band communication signal embodied in an electromagnetic wave and configured to communicate a data value includes a first frame having a first reference pulse and a first data pulse. The first reference pulse has a reference polarity and the first data pulse has a data polarity. The first reference pulse is separated from the first reference pulse by a delay time. The reference polarity is set based on a predetermined reference value and a first pseudo-random polarity code sequence, and the data polarity is set based on the data value and a second pseudo-random polarity code sequence. A receiver configured to receive the signal, a transmitter configured to transmit the signal, and a system of transmitters and receivers are also provided.
摘要翻译：实现在电磁波中并被配置为传送数据值的传输的参考超宽带通信信号包括具有第一参考脉冲和第一数据脉冲的第一帧。第一参考脉冲具有参考极性，并且第一数据脉冲具有数据极性。第一参考脉冲与第一参考脉冲相隔延迟时间。基于预定的参考值和第一伪随机极性代码序列来设定参考极性，并且基于数据值和第二伪随机极性代码序列来设置数据极性。还提供了被配置为接收信号的接收机，被配置为发送信号的发射机，以及发射机和接收机系统。

29. 发明申请

US20060104387A1 Method for estimating time of arrival of received signals for ultra wide band impulse radio systems 失效
标题翻译：用于估计超宽带脉冲无线电系统的接收信号的到达时间的方法
公开(公告)号：US20060104387A1
公开(公告)日：2006-05-18
申请号：US10988764
申请日：2004-11-15
申请人： Zafer Sahinoglu , Sinan Gezici , Andreas Molisch
发明人： Zafer Sahinoglu , Sinan Gezici , Andreas Molisch
IPC分类号： H04L27/06
CPC分类号： H04B1/7183
摘要： A method estimates a time of arrival of a signal received in a wireless communication system. An energy in a frame of a received signal is measured to determine a block in the frame, the block representing a coarse time of arrival of the received signal. Multiple time-delayed versions of a template signal are combined with the block of the received signal to select a particular template signal. The particular template signal identifies a particular chip representing a fine time of arrival of the received signal.
摘要翻译：方法估计在无线通信系统中接收的信号的到达时间。测量接收信号的帧中的能量以确定帧中的块，该块表示接收信号的粗略到达时间。模板信号的多个时间延迟版本与接收信号的块组合以选择特定的模板信号。特定模板信号识别表示接收信号的精确到达时间的特定芯片。

30. 发明授权

US06996368B2 System and method for reducing power consumption in a wireless communications network 有权
标题翻译：用于降低无线通信网络功耗的系统和方法
公开(公告)号：US06996368B2
公开(公告)日：2006-02-07
申请号：US10347896
申请日：2003-01-21
申请人： Philip Orlik , Zafer Sahinoglu , Jinyun Zhang
发明人： Philip Orlik , Zafer Sahinoglu , Jinyun Zhang
IPC分类号： H04B3/36 , H04B7/15
CPC分类号： H04W52/288 , H04L2001/0097 , H04W52/0277 , H04W52/20 , Y02D70/22
摘要： A method reduces power consumption in a multi-hop wireless communications network including a plurality of nodes. At a source node, a first power requirement for relaying a signal to a destination node through an intermediate node using an amplification mode is determined. A second power requirement for relaying the signal the destination node through the intermediate node using a regeneration mode is also determined at the source node. A relay request message is transmitted to the intermediate node, the relay request message including the first and second power requirements.
摘要翻译：一种方法降低了包括多个节点的多跳无线通信网络中的功耗。在源节点处，确定通过使用放大模式通过中间节点将信号中继到目的地节点的第一功率需求。在源节点处也确定通过中继节点使用再生模式中继信号的目的节点的第二功率要求。中继请求消息被发送到中间节点，中继请求消息包括第一和第二功率需求。

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