公开(公告)号：US20080031250A1

公开(公告)日：2008-02-07

申请号：US11497987

申请日：2006-08-01

申请人： Neelesh B. Mehta ,  Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Neelesh B. Mehta ,  Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04L12/56

CPC分类号： H04L45/24 ,  H04L1/08 ,  H04L2001/0096 ,  H04W40/02 ,  Y02D30/20 ,  Y02D70/22 ,  Y02D70/30

摘要： A method for transmitting packets from a source node to a destination node via relay nodes of a wireless network. Packets are transmitted from the source node, along a route of relays nodes, to the destination node in a wireless network. Energy of the packets is accumulated only in the destination node by storing multiple versions of the packet. The packets are decoded in the destination node using the accumulated energy.

摘要翻译： 一种用于经由无线网络的中继节点从源节点向目的地节点发送分组的方法。 分组从源节点沿着中继节点的路由发送到无线网络中的目的地节点。 通过存储分组的多个版本，分组的能量仅在目的地节点中累积。 使用累积的能量在目的地节点中解码分组。

公开(公告)号：US20090268641A1

公开(公告)日：2009-10-29

申请号：US12108863

申请日：2008-04-24

申请人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04B7/00

CPC分类号： H04W72/121 ,  H04W72/1289

摘要： A method switches a mobile station (MS) from a current group to a new group in a Worldwide Interoperability for Microwave Access (WiMAX) including a base station (BS). The BS operates in full duplex mode and the MS operates in half-duplex mode, such that the WiMAX network operates in semi-duplex mode. The MS receives from the BS, while the MS is in the current group, a group switching request in a downlink (DL) sub-frame. The MS also receives structural information regarding frames of the new group. The MS switches from the current group to the new group after receiving the structural information.

摘要翻译： 在包括基站（BS）的全球微波接入互操作性（WiMAX）中，一种方法将移动台（MS）从当前组切换到新组。 BS以全双工模式操作，并且MS以半双工模式操作，使得WiMAX网络以半双工模式工作。 当MS在当前组中时，MS从BS接收在下行链路（DL）子帧中的组切换请求。 MS还接收关于新组的帧的结构信息。 收到结构信息后，MS从当前组切换到新组。

公开(公告)号：US08243649B2

公开(公告)日：2012-08-14

申请号：US12324604

申请日：2008-11-26

申请人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04B7/14

CPC分类号： H04B7/15592

摘要： A method transmits an L bit packet in a relay network including a source node, a relay node and a destination node. The source node partitions the packet into first fragment of βL bits and a second fragment of (1−β) bits. The first fragment is transmitted from the source node to the relay node at a first data rate during a first phase. The second fragment is transmitted from the source node to the destination node at a second data rate during a second phase while the first fragment is retransmitted from the relay node to the destination node at a third data rate.

摘要翻译： 一种方法在包括源节点，中继节点和目的节点的中继网络中发送L比特分组。 源节点将数据包分成第一个片段（bgr; L位）和第二个片段（1-＆bgr））。 在第一阶段期间，第一片段以第一数据速率从源节点传送到中继节点。 第二片段在第二阶段期间以第二数据速率从源节点传送到目的地节点，而第一片段以第三数据速率从中继节点重传到目的地节点。

公开(公告)号：US20100128651A1

公开(公告)日：2010-05-27

申请号：US12324604

申请日：2008-11-26

申请人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Raymond Yim ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04B7/14

CPC分类号： H04B7/15592

摘要： A method transmits an L bit packet in a relay network including a source node, a relay node and a destination node. The source node partitions the packet into first fragment of βL bits and a second fragment of (1−β) bits. The first fragment is transmitted from the source node to the relay node at a first data rate during a first phase. The second fragment is transmitted from the source node to the destination node at a second data rate during a second phase while the first fragment is retransmitted from the relay node to the destination node at a third data rate.

摘要翻译： 一种方法在包括源节点，中继节点和目的节点的中继网络中发送L比特分组。 源节点将数据包分成第一个片段（bgr; L位）和第二个片段（1-＆bgr））。 在第一阶段期间，第一片段以第一数据速率从源节点传送到中继节点。 第二片段在第二阶段期间以第二数据速率从源节点传送到目的地节点，而第一片段以第三数据速率从中继节点重传到目的地节点。

公开(公告)号：US07826853B2

公开(公告)日：2010-11-02

申请号：US11934131

申请日：2007-11-02

申请人： Andreas F. Molisch ,  Lun Dong ,  Philip V. Orlik ,  Jinyun Zhang

发明人： Andreas F. Molisch ,  Lun Dong ,  Philip V. Orlik ,  Jinyun Zhang

IPC分类号： H04W72/00

CPC分类号： H04B7/0678 ,  H04B7/024 ,  H04B7/043 ,  H04B7/0443

摘要： The embodiments of the invention provide an adaptive method for base station cooperation in a wireless network. In a multi-user communications network that includes base stations, and in which each base station is associated with a cell, and in which each cell includes one or more mobile stations, each base station determines pre-coding matrices for full-cooperation, semi-cooperation and non-cooperation. Each base stations also determines a sum rate SRfull for full-cooperation, a sum rate SRsemi for semi-cooperation, and a sum rate SRnon for non-cooperation. Then, each base station selects the pre-coding for full-cooperation, the pre-coding matrices for semi cooperation, or the pre-coding matrices for non cooperation. Each base station transmits signals according to the selected pre-coding matrices.

摘要翻译： 本发明的实施例提供了一种用于无线网络中的基站协作的自适应方法。 在包括基站并且其中每个基站与小区相关联并且每个小区包括一个或多个移动站的多用户通信网络中，每个基站确定用于全协作的预编码矩阵，半 合作不合作。 每个基站还确定全面合作的总和速率，半合作的总和SRsemi和不合作的总和速率SRnon。 然后，每个基站选择用于全协作的预编码，用于半合作的预编码矩阵，或者用于非合作的预编码矩阵。 每个基站根据选择的预编码矩阵发送信号。

公开(公告)号：US20100254369A1

公开(公告)日：2010-10-07

申请号：US12419874

申请日：2009-04-07

申请人： Zhifeng Tao ,  Philip V. Orlik ,  Zafer Sahinoglu ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Philip V. Orlik ,  Zafer Sahinoglu ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04J3/16 ,  H04L27/28

CPC分类号： H04L1/1621 ,  H04L27/26 ,  H04L2001/0093 ,  H04L2001/0097

摘要： A network includes a master node (master) and a set of slave nodes (slaves). The network uses orthogonal frequency-division multiplexing (OFDM) and time division multiple access (TDMA) symbols on sub-carriers. During a first downlink transmission from the master 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 is broadcast. Each slave transmits simultaneously to the master using uplinks and the assigned sub-carriers, a first response packet after receiving the broadcast polling packet. The master then broadcasts 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 include 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： 网络包括主节点（主节点）和一组从节点（从节点）。 该网络在子载波上使用正交频分复用（OFDM）和时分多址（TDMA）符号。 在使用下行链路和所有子载波从主机到从机组的第一次下行链路传输期间，广播包括用于每个从机的数据分组的广播轮询分组和用于从机的子载波分配。 每个从设备使用上行链路和分配的子载波同时发送到主设备，第一响应分组在接收到广播轮询分组之后。 然后主机使用下行链路和所有子载波，一组确认分组广播，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，并且其中在下行链路上进行广播 并且在上行链路上的发送在时间上是不相交的。

公开(公告)号：US07673219B2

公开(公告)日：2010-03-02

申请号：US11377711

申请日：2006-03-16

申请人： Andreas F. Molisch ,  Neelesh B. Mehta ,  Jonathan S. Yedidia ,  Jinyun Zhang

发明人： Andreas F. Molisch ,  Neelesh B. Mehta ,  Jonathan S. Yedidia ,  Jinyun Zhang

IPC分类号： G11C29/00

CPC分类号： H04B7/026 ,  H04B7/15592 ,  H04L1/06 ,  H04L1/0618 ,  H04L2001/0097 ,  H04W52/46

摘要： A system and method for communicating information in a wireless cooperative relay network of nodes, the nodes including a source, a set of relays, and a destination. The source broadcasts a code word encoded as a data stream using a rateless code. The relays receive the data stream, decode the data stream to recover the code word, and reencode and transmit the recovered code word as the data stream with the rateless code. The destination receives and decodes the reencoded data streams to recover the code word.

摘要翻译： 一种用于在节点的无线协作中继网络中传送信息的系统和方法，所述节点包括源，一组中继和目的地。 源使用无码代码广播编码为数据流的码字。 继电器接收数据流，解码数据流以恢复代码字，并重新编码并发送恢复的代码字作为数据流与无码代码。 目的地接收并解码重新编码的数据流以恢复码字。

公开(公告)号：US20090290563A1

公开(公告)日：2009-11-26

申请号：US12293458

申请日：2006-03-30

申请人： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

发明人： Daqing Gu ,  Hongyuan Zhang ,  Jinyun Zhang ,  Andreas F. Molisch

IPC分类号： H04W84/12 ,  H04B7/02

CPC分类号： H04B7/0691 ,  H04B7/0608 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0636 ,  H04B7/0695 ,  H04B7/0874 ,  H04B7/088 ,  H04W84/12

摘要： A method selects antennas in a multiple-input, multiple-output (MIMO) wireless local area network (WLAN) that includes a plurality of stations, and each station includes a set of antennas. Plural consecutive packets, received at a station, include plural consecutive sounding packets. Each sounding packet corresponds to a different subset of the set of antennas, and at least one of the plural consecutive packets includes a high throughput (HT) control field including a signal to initiate antenna selection and a number N indicative of a number of sounding packets which follow the at least one packet including the HT control field and which are to be used for antenna selection. A channel matrix is estimated based on a characteristic of the channel as indicated by the received N sounding packets, and a subset of antennas is selected according to the channel matrix. Station and computer program product embodiments include similar features.

摘要翻译： 一种方法选择包括多个站的多输入多输出（MIMO）无线局域网（WLAN）中的天线，并且每个站包括一组天线。 在站处接收的多个连续分组包括多个连续的探测分组。 每个探测分组对应于该组天线的不同子集，并且多个连续分组中的至少一个分组包括高吞吐量（HT）控制字段，包括用于发起天线选择的信号和指示多个探测分组的数量N 其遵循至少一个包括HT控制字段并将用于天线选择的分组。 基于由接收的N个探测分组指示的信道的特性来估计信道矩阵，并且根据信道矩阵选择天线的子集。 站和计算机程序产品实施例包括类似的特征。

公开(公告)号：US20090129501A1

公开(公告)日：2009-05-21

申请号：US11990650

申请日：2005-08-19

申请人： Neelesh B. Mehta ,  Yabo Li ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Neelesh B. Mehta ,  Yabo Li ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H04L27/00

CPC分类号： H04B7/061

摘要： A method is provided for receiving data at a receiver via a communication channel from a transmitter having at least two transmitter antennas, the method including: receiving (S204) a codebook including an assignment of at least two respective codewords to the at least two transmitter antennas, the assignment being based at least in part on a characteristic of the communication channel; detecting a state of the communication channel by which the receiver can communicate with the transmitter; selecting (S206) at least one desired transmitter antenna from the at least two antennas based at least in part on the detected state of the communication channel; transmitting (S208) to the transmitter a codeword corresponding to the at least one desired transmitter antenna; and receiving (S210) data at the receiver transmitted by the transmitter.

摘要翻译： 提供了一种用于经由来自具有至少两个发射机天线的发射机的通信信道在接收机处接收数据的方法，所述方法包括：接收（S204）包括至少两个相应码字的分配的码本到所述至少两个发射机天线 所述分配至少部分地基于所述通信信道的特性; 检测接收机可以与发射机通信的通信信道的状态; 至少部分地基于所检测到的通信信道的状态，从所述至少两个天线中选择（S206）至少一个期望的发射机天线; 向所述发射机发送对应于所述至少一个所需发射机天线的码字（S208）; 以及在由发射机发送的接收机处接收（S210）数据。

公开(公告)号：US20090016372A1

公开(公告)日：2009-01-15

申请号：US12117219

申请日：2008-05-08

申请人： Zhifeng Tao ,  Andreas F. Molisch ,  Philip V. Orlik ,  Jinyun Zhang ,  Shigeru Uchida ,  Kentarou Sawa

发明人： Zhifeng Tao ,  Andreas F. Molisch ,  Philip V. Orlik ,  Jinyun Zhang ,  Shigeru Uchida ,  Kentarou Sawa

IPC分类号： H04J3/16

CPC分类号： H04B7/0874 ,  H04B7/063 ,  H04B7/0691 ,  H04L5/0007

摘要： A method selects antennas in an OFDMA wireless network including a base station and a mobile station. The mobile station measures a channel state of a downlink in a downlink subframe using different subsets of available antennas, and selects a subset of receive antennas for downlink reception based on the channel states between the base station and the different subsets of antennas at the mobile station. The base station measures the channel state in an uplink using an uplink subframe received in the base station from the mobile station, and selects a subset of transmit antennas for mobile station's uplink transmission based on the channel states between the base station and different subset of antennas at the mobile station.

摘要翻译： 一种方法选择包括基站和移动台的OFDMA无线网络中的天线。 移动站使用不同的可用天线子集来测量下行链路子帧中的下行链路的信道状态，并且基于移动站的基站和不同的天线子集之间的信道状态来选择用于下行链路接收的接收天线的子集 。 基站使用来自移动站的基站中接收到的上行链路子帧来测量上行链路中的信道状态，并且基于基站和不同的天线子集之间的信道状态来选择用于移动台的上行链路传输的发射天线的子集 在移动台。