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。

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。

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。

公开(公告)号：US08009580B2

公开(公告)日：2011-08-30

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： H04W4/00

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。