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21. 发明申请

US20090180459A1 OFDMA Frame Structures for Uplinks in MIMO Networks 审中-公开
标题翻译： OFDMA帧结构在MIMO网络中的上行链路
公开(公告)号：US20090180459A1
公开(公告)日：2009-07-16
申请号：US12240164
申请日：2008-09-29
申请人： Philip V. Orlik , Andreas F. Molisch , Zhifeng Tao , Jinyun Zhang
发明人： Philip V. Orlik , Andreas F. Molisch , Zhifeng Tao , Jinyun Zhang
IPC分类号： H04B7/208 , H04L27/28
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0037 , H04L5/0044 , H04L5/0089
摘要： A method communicates symbols in a cell of a multiple-input multiple-output (MIMO) network that includes a set of mobile station and a base station. The symbols are communicated using orthogonal frequency division multiplexing (OFDM) and time division duplex (TDM). A frame for communicating the symbols between the base station and the mobile station is constructed. The frame is partitioned into a downlink subframe and an uplink subframe. The uplink subframe is partitioned into a first zone and a second zone, wherein the first zone uses orthogonal frequency division multiple access (OFDMA) and the second zone uses single carrier frequency division multiple access (SC-FDMA).
摘要翻译：一种方法在包括一组移动台和基站的多输入多输出（MIMO）网络的小区中传送符号。使用正交频分复用（OFDM）和时分双工（TDM）来传送符号。构建用于在基站和移动站之间传送符号的帧。帧被划分为下行链路子帧和上行链路子帧。上行链路子帧被划分为第一区域和第二区域，其中第一区域使用正交频分多址（OFDMA），第二区域使用单载波频分多址（SC-FDMA）。

22. 发明申请

US20080165670A1 Method and System for Enabling HARQ Operations on Channels between Stations in Wireless Communication Networks 失效
标题翻译：用于在无线通信网络中的站之间的信道上进行HARQ操作的方法和系统
公开(公告)号：US20080165670A1
公开(公告)日：2008-07-10
申请号：US11620123
申请日：2007-01-05
申请人： Zhifeng Tao , Toshiyuki Kuze , Shigeru Uchida , Kentarou Sawa , Koon Hoo Teo , Jinyun Zhang
发明人： Zhifeng Tao , Toshiyuki Kuze , Shigeru Uchida , Kentarou Sawa , Koon Hoo Teo , Jinyun Zhang
IPC分类号： H04J11/00
CPC分类号： H04L5/0053 , H04L1/1812 , H04L1/1822 , H04L5/0007 , H04L5/0091 , H04L47/10 , H04L47/14 , H04L47/34
摘要： A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.
摘要翻译：一种方法和系统能够在正交频分多址（OFDMA）无线通信网络的站之间的信道上实现并提高混合自动重传请求（HARQ）操作的性能。在此，自适应地增加并行HARQ信道的数量，并且使用一个连接标识符来明确地标识通过并行HARQ信道传送的一组MAC协议数据单元（MPDU）。当MPDU通过并行HARQ信道发送时，序列号用于避免无序MPDU传送。 MPDU可以级联或封装。并行HARQ信道的最大数量可以增加到256，并且当站进入或重新进入网络时可以协商。

23. 发明申请

US20080107061A1 Communicating packets in a wireless multi-user multi-hop relay networks 有权
标题翻译：在无线多用户多跳中继网络中通信数据包
公开(公告)号：US20080107061A1
公开(公告)日：2008-05-08
申请号：US11593358
申请日：2006-11-06
申请人： Zhifeng Tao , Koon Hoo Teo , Toshiyuki Kuze , Jinyun Zhang
发明人： Zhifeng Tao , Koon Hoo Teo , Toshiyuki Kuze , Jinyun Zhang
IPC分类号： H04J3/08
CPC分类号： H04L47/10 , H04B7/2606 , H04L47/12 , H04L47/14 , H04W16/26 , H04W28/06 , H04W84/047
摘要： A method communicates packets in a relay network. Multiple packets are communicated between a set of mobile stations and a relay station using a set of connections. There is one connection between each mobile station and the relay station. The multiple packets are aggregated on single connection between the relay station and a base station.
摘要翻译：一种方法在中继网络中传送数据包。使用一组连接在一组移动站和中继站之间传送多个分组。每个移动台和中继站之间有一个连接。多个分组在中继站和基站之间的单个连接上聚合。

24. 发明申请

US20060034219A1 Signaling in a wireless network with sequential coordinated channel access 有权
标题翻译：在具有顺序协调通道访问的无线网络中进行信令
公开(公告)号：US20060034219A1
公开(公告)日：2006-02-16
申请号：US10915801
申请日：2004-08-11
申请人： Daqing Gu , Zhifeng Tao , Jinyun Zhang
发明人： Daqing Gu , Zhifeng Tao , Jinyun Zhang
IPC分类号： H04L12/413
CPC分类号： H04L47/824 , H04L47/14 , H04L47/15 , H04L47/70 , H04L47/72 , H04L47/765 , H04L47/788 , H04W28/20 , H04W74/04 , H04W74/0808 , H04W74/0866
摘要： A method signals data in a channel of a network including multiple stations and an access point connected by a wireless channel. A station first requests access to the channel using a sequential coordinated channel access method of an access point. After the station receives permission to access the channel during a contention free period at a time corresponding to a sequence index value received by the station from the access point, the station transmits a resource request message to the access point to obtain a bandwidth allocation. In response, the station receives the bandwidth allocation, and the station can then transmit data during the contention free period according to the bandwidth allocation.
摘要翻译：一种方法是在包括多个站的网络的信道中的信号和由无线信道连接的接入点的信号。首先，使用接入点的顺序协调信道接入方法请求接入信道。在与站点从接入点接收到的序列索引值相对应的时间段内，在无竞争阶段期间接收到访问信道的许可之后，站向接入点发送资源请求消息以获得带宽分配。作为响应，站接收带宽分配，然后站可以根据带宽分配在无竞争期间发送数据。

25. 发明授权

US08274930B2 Analog beamforming to reduce interference in WiMAX networks 有权
标题翻译：模拟波束成形，以减少WiMAX网络的干扰
公开(公告)号：US08274930B2
公开(公告)日：2012-09-25
申请号：US12403025
申请日：2009-03-12
申请人： Philip V. Orlik , Toshiyuki Kuze , Andreas F. Molisch , Zhifeng Tao , Jinyun Zhang
发明人： Philip V. Orlik , Toshiyuki Kuze , Andreas F. Molisch , Zhifeng Tao , Jinyun Zhang
IPC分类号： H04W4/00
CPC分类号： H04W72/046 , H04W4/08 , H04W24/10 , H04W72/085
摘要： A base station transmits a set of sounding requests to a set of mobile station (MS) in a cell, using a set of beams, wherein there is one beam for each sounding request. Qualities of sounding signals transmitted by the set of MSs in response to receiving the sounding request are measured, and the set of MSs are grouped into subsets according to the qualities, wherein there is one subset of MSs associated with each beam.
摘要翻译：基站使用一组波束向小区中的一组移动台（MS）发送一组探测请求，其中对于每个探测请求存在一个波束。测量响应于接收到探测请求的MS组发送的探测信号的质量，并且根据质量将MS组合成子集，其中存在与每个波束相关联的MS的一个子集。

26. 发明申请

US20120236780A1 Protocol Data Units and Header in Multihop Relay Network 失效
标题翻译：多跳中继网络中的协议数据单元和报头
公开(公告)号：US20120236780A1
公开(公告)日：2012-09-20
申请号：US13422922
申请日：2012-03-16
申请人： Zhifeng Tao , Jinyun Zhang
发明人： Zhifeng Tao , Jinyun Zhang
IPC分类号： H04W80/00
CPC分类号： H04L69/324 , H04L69/22 , H04W88/04
摘要： The invention provides a data structure embodied in a computer readable media. The data structure is a protocol data packet (PDU) communicated in a mobile multihop network between stations. The data structure includes a relay media access header, a payload and an optional cyclical redundancy checksum for the protocol data unit, and an indication whether the PDU is a relay media access protocol data unit or not.
摘要翻译：本发明提供一种体现在计算机可读介质中的数据结构。数据结构是在站之间的移动多跳网络中通信的协议数据分组（PDU）。数据结构包括用于协议数据单元的中继媒体接入报头，有效载荷和可选的循环冗余校验和，以及PDU是否是中继媒体接入协议数据单元的指示。

27. 发明授权

US08270313B2 Ranking nodes in networks with topologies arranged as directed acyclic graphs 有权
标题翻译：将拓扑中的节点排列为有向无环图
公开(公告)号：US08270313B2
公开(公告)日：2012-09-18
申请号：US12618235
申请日：2009-11-13
申请人： Zhifeng Tao , Di Wang , Jinyun Zhang
发明人： Zhifeng Tao , Di Wang , Jinyun Zhang
IPC分类号： H04L12/28
CPC分类号： H04W40/22 , H04L45/18 , H04W40/125 , H04W40/248
摘要： Embodiments of the invention disclose a system and a method for determining a rank of a node in a multi-hop wireless network, wherein the network includes a gateway node, client nodes, and relay nodes, wherein a node p(i) is a default parent of the node i having a rank, and the network uses a directed acyclic graph (DAG) topology. The method comprises steps of transmitting at least one data packet from the node to the default parent node over a wireless link; counting a number of successful transmissions of most recent transmissions of data packets; determining an expected transmission time (ETX) for the wireless link based on the number of successful transmissions in the most recent transmissions; and assigning a rank R(i) to the node based on the rank of the parent node and the ETX.
摘要翻译：本发明的实施例公开了一种用于确定多跳无线网络中的节点的等级的系统和方法，其中所述网络包括网关节点，客户端节点和中继节点，其中节点p（i）是默认的具有等级的节点的父节点，并且网络使用有向非循环图（DAG）拓扑。该方法包括以下步骤：通过无线链路将来自节点的至少一个数据分组发送到默认父节点; 计数数据分组的最近传输的成功传输的数量; 基于最近传输中成功传输的数量确定无线链路的预期传输时间（ETX）; 并且基于父节点和ETX的等级将节点R（i）分配给节点。

28. 发明授权

US08023462B2 Graph-based method for dynamic fractional frequency reuse 有权
$Graph-based method for dynamic fractional frequency reuse$
标题翻译：用于动态分数次频率重用的基于图形的方法
公开(公告)号：US08023462B2
公开(公告)日：2011-09-20
申请号：US12205554
申请日：2008-09-05
申请人： Zhifeng Tao , Yu-Jung Chang , Jinyun Zhang
发明人： Zhifeng Tao , Yu-Jung Chang , Jinyun Zhang
IPC分类号： H04W4/00
CPC分类号： H04L5/0007 , H04L5/003 , H04L5/0032 , H04L5/0067 , H04W16/12 , H04W72/0453
摘要： A method allocates frequency subchannels in an orthogonal frequency-division multiple access (OFDMA) network including a set of base stations and a set of mobile stations for each base station. A graph of nodes and edges is constructed, in which the nodes represent the mobile stations in the network, and the edges connecting the nodes represent subchannel allocation constraints to be satisfied for the mobile stations represented by the nodes. The nodes are colored with colors selected from a set of colors such that subchannel allocation constraints of a pair of nodes connected by one of the edges are satisfied. The subchannels are allocated to the mobile stations according to the colors of the corresponding the nodes.
摘要翻译：一种方法在包括一组基站和每个基站的一组移动台的正交频分多址（OFDMA）网络中分配频率子信道。构建节点和边缘的图，其中节点表示网络中的移动站，并且连接节点的边表示子节点分配约束，以便为由节点表示的移动站满足。节点用从一组颜色中选择的颜色着色，使得由一个边缘连接的一对节点的子信道分配约束得到满足。子信道根据相应节点的颜色分配给移动台。

29. 发明授权

US07630355B2 Method and system for enabling HARQ operations on channels between stations in wireless communication networks 失效
标题翻译：用于在无线通信网络中的站之间的信道上实现HARQ操作的方法和系统
公开(公告)号：US07630355B2
公开(公告)日：2009-12-08
申请号：US11620123
申请日：2007-01-05
申请人： Zhifeng Tao , Toshiyuki Kuze , Shigeru Uchida , Kentarou Sawa , Koon Hoo Teo , Jinyun Zhang
发明人： Zhifeng Tao , Toshiyuki Kuze , Shigeru Uchida , Kentarou Sawa , Koon Hoo Teo , Jinyun Zhang
IPC分类号： H04J1/00
CPC分类号： H04L5/0053 , H04L1/1812 , H04L1/1822 , H04L5/0007 , H04L5/0091 , H04L47/10 , H04L47/14 , H04L47/34
摘要： A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.
摘要翻译：一种方法和系统能够在正交频分多址（OFDMA）无线通信网络的站之间的信道上实现并提高混合自动重传请求（HARQ）操作的性能。在此，自适应地增加并行HARQ信道的数量，并且使用一个连接标识符来明确地标识通过并行HARQ信道传送的一组MAC协议数据单元（MPDU）。当MPDU通过并行HARQ信道发送时，序列号用于避免无序MPDU传送。 MPDU可以级联或封装。并行HARQ信道的最大数量可以增加到256，并且当站进入或重新进入网络时可以协商。

30. 发明申请

US20090225728A1 Analogue Beamforming 审中-公开
标题翻译：模拟波束成形
公开(公告)号：US20090225728A1
公开(公告)日：2009-09-10
申请号：US12358467
申请日：2009-01-23
申请人： Zhifeng Tao , Andreas F. Molisch , Philip V. Orlik , Jinyun Zhang , Toshiyuki Kuze
发明人： Zhifeng Tao , Andreas F. Molisch , Philip V. Orlik , Jinyun Zhang , Toshiyuki Kuze
IPC分类号： H04B7/212 , H04W4/00
CPC分类号： H04W16/28 , H04B7/043 , H04B7/0634 , H04B7/0671
摘要： An orthogonal frequency division multiple access (OFDMA) network including a base station (BS) associated with a set of mobile stations (MS) in a cell. The set of MS are grouped into sets of active MS, wherein each set of active MS corresponds to a beam formed at the BS. The BS transmits a down link (DL) subframe using analog beam forming (ABF), wherein the DL subframe has one ABF zone for each set of active MS and each corresponding beam.
摘要翻译：一种正交频分多址（OFDMA）网络，包括与小区中的一组移动站（MS）相关联的基站（BS）。该组MS被分组成活动MS集合，其中每组有效MS对应于在BS处形成的一个波束。 BS使用模拟波束形成（ABF）发送下行链路（DL）子帧，其中DL子帧对于每组有效MS和每个对应的波束具有一个ABF区。

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