公开(公告)号：US07969957B2

公开(公告)日：2011-06-28

申请号：US11722144

申请日：2005-12-08

申请人： Katsuyoshi Naka ,  Daichi Imamura ,  Tomohiro Imai ,  Junya Yamazaki

发明人： Katsuyoshi Naka ,  Daichi Imamura ,  Tomohiro Imai ,  Junya Yamazaki

IPC分类号： H04J1/00

CPC分类号： H04L5/006 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/0046

摘要： An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave apparatus, a data holding part (1021) two-dimensionally arranges and holds bit sequences. A first index calculating part (1022) sequentially calculates first indexes to be used for reading, in a column direction, the bit sequences arranged in a row direction. A second index calculating part (1023) sequentially calculates second indexes to be used for reversing the order of the upper-order and lower-order bits to be read from the even-numbered columns when the bit sequences are read in accordance with the first indexes. A third index calculating part (1024) sequentially calculates third indexes to be used for reading the bit sequences from a different start position in accordance with the number of retransmissions. A reading part (1025) reads the bit sequences in the order that is in accordance with the third indexes. A mapping part (103) maps the read bit sequences to the respectively corresponding subcarriers.

摘要翻译： 一种交织装置和交织方法，用于防止重传次数的增加以提高吞吐量。 在具有交织装置的无线通信装置中，数据保持部（1021）二维排列并保持比特序列。 第一索引计算部（1022）依次计算用于沿列方向读取沿行方向排列的位序列的第一索引。 第二索引计算部分（1023）根据第一索引顺序地计算用于反转从偶数列读取的高阶和低位比特的顺序的第二索引 。 第三索引计算部分（1024）根据重发次数顺序地计算用于从不同起始位置读取比特序列的第三索引。 读取部分（1025）按照与第三索引相符的顺序读取比特序列。 映射部分（103）将读取的比特序列映射到分别对应的子载波。

公开(公告)号：US20090092118A1

公开(公告)日：2009-04-09

申请号：US11722144

申请日：2005-12-08

申请人： Katsuyoshi Naka ,  Daichi Imamura ,  Tomohiro Imai ,  Junya Yamazaki

发明人： Katsuyoshi Naka ,  Daichi Imamura ,  Tomohiro Imai ,  Junya Yamazaki

IPC分类号： H04J1/00

CPC分类号： H04L5/006 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/0046

摘要： An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave apparatus, a data holding part (1021) two-dimensionally arranges and holds bit sequences. A first index calculating part (1022) sequentially calculates first indexes to be used for reading, in a column direction, the bit sequences arranged in a row direction. A second index calculating part (1023) sequentially calculates second indexes to be used for reversing the order of the upper-order and lower-order bits to be read from the even-numbered columns when the bit sequences are read in accordance with the first indexes. A third index calculating part (1024) sequentially calculates third indexes to be used for reading the bit sequences from a different start position in accordance with the number of retransmissions. A reading part (1025) reads the bit sequences in the order that is in accordance with the third indexes. A mapping part (103) maps the read bit sequences to the respectively corresponding subcarriers.

摘要翻译： 一种交织装置和交织方法，用于防止重传次数的增加以提高吞吐量。 在具有交织装置的无线通信装置中，数据保持部（1021）二维排列并保持比特序列。 第一索引计算部（1022）依次计算用于沿列方向读取沿行方向排列的位序列的第一索引。 第二索引计算部分（1023）根据第一索引顺序地计算用于反转从偶数列读取的高阶和低位比特的顺序的第二索引 。 第三索引计算部分（1024）根据重发次数顺序地计算用于从不同起始位置读取比特序列的第三索引。 读取部分（1025）按照与第三索引相符的顺序读取比特序列。 映射部分（103）将读取的比特序列映射到分别对应的子载波。

公开(公告)号：US20070171876A1

公开(公告)日：2007-07-26

申请号：US10591600

申请日：2005-03-08

申请人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Junya Yamazaki ,  Katsuyoshi Naka

发明人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Junya Yamazaki ,  Katsuyoshi Naka

IPC分类号： H04J3/00

CPC分类号： H04W28/06 ,  H04W84/12

摘要： The invention includes methods for achieving efficient channel access in a wireless communications system. The invention is embodied in a wireless network adapter that is present in all stations belonging to the network. The invention describes methods by which access overheads may be reduced by introducing the concept of context sensitive frame timing—using which stations redefine and interpret frame timing depending on context and signaling. The result of realizing the invention is an improvement in medium utilization efficiency and consequently, an overall improvement in network throughput.

摘要翻译： 本发明包括在无线通信系统中实现有效的信道接入的方法。 本发明体现在存在于属于网络的所有站中的无线网络适配器中。 本发明描述了通过引入上下文敏感帧定时的概念来降低接入开销的方法，其中哪些站根据上下文和信令重新定义和解释帧定时。 实现本发明的结果是提高了介质利用效率，从而提高了网络吞吐量。

公开(公告)号：US07773577B2

公开(公告)日：2010-08-10

申请号：US10591600

申请日：2005-03-08

申请人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Junya Yamazaki ,  Katsuyoshi Naka

发明人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Junya Yamazaki ,  Katsuyoshi Naka

IPC分类号： H04W72/08 ,  H04W72/02 ,  H04W72/04

CPC分类号： H04W28/06 ,  H04W84/12

摘要： The invention includes methods for achieving efficient channel access in a wireless communications system. The invention is embodied in a wireless network adapter that is present in all stations belonging to the network. The invention describes methods by which access overheads may be reduced by introducing the concept of context sensitive frame timing—using which stations redefine and interpret frame timing depending on context and signaling. The result of realizing the invention is an improvement in medium utilization efficiency and consequently, an overall improvement in network throughput.

摘要翻译： 本发明包括在无线通信系统中实现有效的信道接入的方法。 本发明体现在存在于属于网络的所有站中的无线网络适配器中。 本发明描述了通过引入上下文敏感帧定时的概念来降低接入开销的方法，其中哪些站根据上下文和信令重新定义和解释帧定时。 实现本发明的结果是提高了介质利用效率，从而提高了网络吞吐量。

公开(公告)号：US07545791B2

公开(公告)日：2009-06-09

申请号：US10584495

申请日：2004-12-20

申请人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Katsuyoshi Naka

发明人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Katsuyoshi Naka

IPC分类号： H04J1/00

CPC分类号： H04L5/06 ,  H04L27/2602

摘要： A wireless transmission apparatus that improves throughput in a wireless communication network system. In this apparatus, MT units of transmission/reception sections (122-1 to 122-MT) respectively correspond to MT units of antennas (121-1 to 121-MT) and transmit a preamble signal and a data signal via corresponding antennas (121-1 to 121-MT). MT units of transmission/reception sections (122-1 to 122-MT) use subcarriers allocated per antennas (121-1 to 121-MT) out of subcarriers (141, 142, 143 and 144) in preamble signal transmission. Furthermore, MT units of transmission/reception section (122-1 to 122-MT) use a subcarrier (140) having a frequency different from subcarriers (141, 142, 143 and 144) in data signal transmission.

摘要翻译： 一种提高无线通信网络系统中的吞吐量的无线传输装置。 在该装置中，发送/接收部分（122-1至122-MT）的MT单元分别对应于MT单元天线（121-1至121-MT），并通过相应的天线（121）发送前导码信号和数据信号 -1至121-MT）。 发送/接收部分（122-1至122-MT）的MT单元在前导码信号传输中使用子载波（141,142,143和144）中每天分配的子载波（121-1至121-MT）。 此外，发送/接收部分（122-1至122-MT）的MT单元在数据信号传输中使用具有与子载波（141,142,143和144）不同的频率的副载波（140）。

公开(公告)号：US20070165521A1

公开(公告)日：2007-07-19

申请号：US10584495

申请日：2004-12-20

申请人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Katsuyoshi Naka

发明人： Rahul Malik ,  Pek Yew Tan ,  Daichi Imamura ,  Katsuyoshi Naka

IPC分类号： H04L12/26 ,  H04Q7/00

CPC分类号： H04L5/06 ,  H04L27/2602

摘要： A wireless transmission apparatus that improves throughput in a wireless communication network system. In this apparatus, MT units of transmission/reception sections (122-1 to 122-MT) respectively correspond to MT units of antennas (121-1 to 121-MT) and transmit a preamble signal and a data signal via corresponding antennas (121-1 to 121-MT). MT units of transmission/reception sections (122-1 to 122-MT) use subcarriers allocated per antennas (121-1 to 121-MT) out of subcarriers (141, 142, 143 and 144) in preamble signal transmission. Furthermore, MT units of transmission/reception section (122-1 to 122-MT) use a subcarrier (140) having a frequency different from subcarriers (141, 142, 143 and 144) in data signal transmission.

摘要翻译： 一种提高无线通信网络系统中的吞吐量的无线传输装置。 在该装置中，发送/接收部分（122-1至122-M＆lt; T＆gt; T＆gt; T＆gt;）的M T T个单元分别对应于 天线（121-1至121-M SUB），并且经由相应的天线（121-1至121-M SUB）发送前导码信号和数据信号。 发送/接收部分（122-1至122-M＆lt; T＆gt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; T＆lt; / SUB>）在子载波（141,142,143和144）中。 此外，发送/接收部分（122-1至122-M SUB）的M T T个单元使用具有与子载波（141,142）不同的频率的子载波（140） ，143和144）。

公开(公告)号：US20080279210A1

公开(公告)日：2008-11-13

申请号：US11718377

申请日：2005-11-01

申请人： Katsuyoshi Naka ,  Daichi Imamura

发明人： Katsuyoshi Naka ,  Daichi Imamura

IPC分类号： H04L12/413

CPC分类号： H04W28/18 ,  H04W74/08 ,  H04W84/12

摘要： A communication apparatus exhibiting improved certainty and stability in communication. In a wireless terminal (100) serving as the communication apparatus, a transmission possibility determining part (186) uses an AIFS and a backoff value to control the transmission timing of transport data, and an AIFS managing part (181) adjusts the AIFS value related to the transport data in accordance with an elapsed time from the occurrence of a transmission request of the transport data. In this way, the AIFS value related to any transport data having a long elapsed time from the occurrence of a transmission request of the transport data can be reduced, and a predetermined wait time determined by the AIFS and backoff values also can be reduced. Accordingly, the probability of the transport data being transmitted with a higher priority than the other ones can be raised, whereby the possibility of the transport data being abandoned because of a timeout can be reduced. As a result, the certainty and stability in communication can be improved.

摘要翻译： 一种在通信中具有提高的确定性和稳定性的通信装置。 在作为通信装置的无线终端（100）中，发送可能性确定部（186）使用AIFS和退避值来控制传输数据的发送定时，AIFS管理部（181）调整AIFS值 根据从传送数据的发送请求的发生所经过的时间到传输数据。 以这种方式，可以减少与发送传输数据的发送请求的经过时间长的任何传输数据相关的AIFS值，并且还可以减少由AIFS和退避值确定的预定等待时间。 因此，可以提高传输数据的优先级高于其他传输数据的概率，由此可以减少由于超时而丢弃传输数据的可能性。 结果可以提高沟通的确定性和稳定性。

公开(公告)号：US20090274167A1

公开(公告)日：2009-11-05

申请号：US11995307

申请日：2006-07-11

申请人： Junya Yamazaki ,  Katsuyoshi Naka

发明人： Junya Yamazaki ,  Katsuyoshi Naka

IPC分类号： H04L12/413

CPC分类号： H04L12/413 ,  H04W28/06 ,  H04W74/08

摘要： A communication terminal apparatus capable of suppressing communication delay independently of the packet size, efficiently performing communication, and further solving the problem of hidden terminals. In this apparatus, a number-of-STAs holding part (107) counts, based on a received signal inputted from an STA determining part (105), the other STAs in the same cell. A back-off establishing part (108), which stores a table or a back-off value calculation formula in accordance with the number of the STAs in the cell, uses the number of the STAs in the information about the number of registered terminals in the cell to select or calculate the corresponding back-off value, thereby establishing the back-off value. A packet generating part (109) generates a packet including both number-of-terminals information and transport data. A transmission standby part (112) establishes a transmission standby time such that only the back-off value is on transmission-standby. The transmission standby part (112) then causes the packet to be on transmission-standby by the established transmission standby time and be outputted after a lapse of the transmission standby time.

摘要翻译： 一种能够独立于分组大小来抑制通信延迟，有效地进行通信并进一步解决隐藏终端的问题的通信终端装置。 在该装置中，STA数保持部（107）根据从STA判定部（105）输入的接收信号计数同一小区中的其他STA。 根据小区中的STA的数量存储表或退避值计算公式的退避建立部（108）使用关于登记终端的数量的信息中的STA的数量 该单元格选择或计算相应的退避值，从而建立退避值。 分组生成部（109）生成包括终端数信息和传送数据的分组。 发送待机部分（112）建立传输待机时间，使得只有退避值处于传输待机状态。 发送待机部分（112）然后通过建立的发送待机时间使分组处于发送待机状态，并且在传输待机时间过去之后被输出。

公开(公告)号：US20090052392A1

公开(公告)日：2009-02-26

申请号：US11816166

申请日：2006-01-19

申请人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

发明人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

IPC分类号： H04W36/02

CPC分类号： H04L1/1887 ,  H04W36/02

摘要： A base station, a mobile station and a retransmission control method for enabling communication to be more efficiently performed. In a communication system comprising a base station (100) and a mobile station (200), a time period required for the retransmission of a transport packet to complete is determined, and a retransmission control is performed, based on the required time period, to change the order of executing the retransmission of the transport packet and a handover. In this way, when it is estimated that the retransmission will complete soon, the retransmission is caused to complete in a handover source system, thereby avoiding waste of communication resources used in the preceding transmission and retransmission processes. When it is estimated that the retransmission will continue for a while, the communication resources used in the preceding transmission and retransmission processes are wasted, but a more appropriate MCS can be assigned, in a handover destination system, so as to perform a retransmission, thereby enabling communication to be efficiently performed.

摘要翻译： 基站，移动站和重发控制方法，能够更有效地进行通信。 在包括基站（100）和移动站（200）的通信系统中，确定传输分组完成重传所需的时间段，并根据所需时间进行重发控制， 改变执行传输分组的重传的顺序和切换。 以这种方式，当估计重传将很快完成时，在切换源系统中重新发送完成，从而避免浪费在前面的传输和重传过程中使用的通信资源。 当估计重传将持续一段时间时，在先前的传输和重传过程中使用的通信资源被浪费，但是在切换目的地系统中可以分配更适合的MCS以便执行重传，由此 使得能够有效地执行通信。

公开(公告)号：US08711804B2

公开(公告)日：2014-04-29

申请号：US11816166

申请日：2006-01-19

申请人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

发明人： Atsushi Sumasu ,  Hidenori Kayama ,  Hiroki Haga ,  Masayuki Hoshino ,  Katsuyoshi Naka ,  Junya Yamazaki ,  Ryohei Kimura

IPC分类号： H04W36/02

CPC分类号： H04L1/1887 ,  H04W36/02

摘要： A base station, a mobile station and a retransmission control method for enabling communication to be more efficiently performed. In a communication system comprising a base station (100) and a mobile station (200), a time period required for the retransmission of a transport packet to complete is determined, and a retransmission control is performed, based on the required time period, to change the order of executing the retransmission of the transport packet and a handover. In this way, when it is estimated that the retransmission will complete soon, the retransmission is caused to complete in a handover source system, thereby avoiding waste of communication resources used in the preceding transmission and retransmission processes. When it is estimated that the retransmission will continue for a while, the communication resources used in the preceding transmission and retransmission processes are wasted, but a more appropriate MCS can be assigned, in a handover destination system, so as to perform a retransmission, thereby enabling communication to be efficiently performed.

摘要翻译： 基站，移动站和重发控制方法，能够更有效地进行通信。 在包括基站（100）和移动站（200）的通信系统中，确定传输分组完成重传所需的时间段，并根据所需时间进行重发控制， 改变执行传输分组的重传的顺序和切换。 以这种方式，当估计重传将很快完成时，在切换源系统中重新发送完成，从而避免浪费在前面的传输和重传过程中使用的通信资源。 当估计重传将持续一段时间时，在先前的传输和重传过程中使用的通信资源被浪费，但是在切换目的地系统中可以分配更适合的MCS以便执行重传，由此 使得能够有效地执行通信。