公开(公告)号：US08155229B2

公开(公告)日：2012-04-10

申请号：US11603859

申请日：2006-11-22

申请人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Jordi Diaz

发明人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Jordi Diaz

IPC分类号： H04B7/02

CPC分类号： H04L1/0618 ,  H04L27/2626

摘要： An apparatus is provided for transmitting a signal in a communication system. Upon receipt of an information vector, the apparatus includes converting the information vector into a plurality of sub-information vectors; performing coding and modulation on each of the sub-information vectors according to a corresponding mode thereby generating a modulation symbol; interleaving the modulation symbol generated for each of the sub-information vectors; allocating power to the interleaved modulation symbol for each individual mode; and beamforming the modulation symbols power-allocated for each individual mode, and transmitting the beamforming symbols.

摘要翻译： 提供一种用于在通信系统中发送信号的装置。 在接收到信息向量时，该装置包括将信息向量转换成多个子信息向量; 根据对应模式对每个子信息向量执行编码和调制，从而生成调制符号; 交织对每个子信息向量生成的调制符号; 为每个单独模式分配交织调制符号的功率; 以及波束成形为每个单独模式功率分配的调制符号，以及发送波束形成符号。

公开(公告)号：US20070127593A1

公开(公告)日：2007-06-07

申请号：US11603859

申请日：2006-11-22

申请人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Jordi Diaz

发明人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Jordi Diaz

IPC分类号： H04L27/00 ,  H04K1/10

CPC分类号： H04L1/0618 ,  H04L27/2626

摘要： An apparatus is provided for transmitting a signal in a communication system. Upon receipt of an information vector, the apparatus includes converting the information vector into a plurality of sub-information vectors; performing coding and modulation on each of the sub-information vectors according to a corresponding mode thereby generating a modulation symbol; interleaving the modulation symbol generated for each of the sub-information vectors; allocating power to the interleaved modulation symbol for each individual mode; and beamforming the modulation symbols power-allocated for each individual mode, and transmitting the beamforming symbols.

摘要翻译： 提供一种用于在通信系统中发送信号的装置。 在接收到信息向量时，该装置包括将信息向量转换成多个子信息向量; 根据对应模式对每个子信息向量执行编码和调制，从而生成调制符号; 交织对每个子信息向量生成的调制符号; 为每个单独模式分配交织调制符号的功率; 以及波束成形为每个单独模式功率分配的调制符号，以及发送波束形成符号。

公开(公告)号：US20070127592A1

公开(公告)日：2007-06-07

申请号：US11603857

申请日：2006-11-22

申请人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Kodzovi Acolatse

发明人： Ye-Hoon Lee ,  Dong-Ho Kim ,  Yeheskel Bar-Ness ,  Kodzovi Acolatse

IPC分类号： H04L27/00 ,  H04K1/10

CPC分类号： H04L1/0041 ,  H04L1/0056 ,  H04L1/0643 ,  H04L1/0668 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1893

摘要： An apparatus for transmitting a signal in a communication system includes: MT number of transmission antennas; a space-time encoder for generating MT number of transmission symbol streams by space-time encoding MT number of modulation symbol streams in accordance with a space-time encoding scheme determined by a predetermined control, and transmitting each of the MT transmission symbol streams through a corresponding transmission antenna from among the MT transmission antennas; and a controller for determining the space-time encoding scheme based on an iteration number of transmission, which indicates the number of times by which an information data bit stream corresponding to the MT modulation symbol streams has been transmitted.

摘要翻译： 用于在通信系统中发送信号的装置包括：发送天线的数量; 空间编码器，用于根据确定的时空编码方案，通过调制符号流的空时编码M N T N个数来产生传输符号流的数目 通过预定的控制，并且从多个发送天线之间通过相应的发送天线发送每个M SUB传输符号流; 以及控制器，用于基于传送的迭代次数来确定空时编码方案，所述迭代次数表示已经发送了与调制符号流对应的信息数据比特流的次数 。

公开(公告)号：US08064428B2

公开(公告)日：2011-11-22

申请号：US11503289

申请日：2006-08-11

申请人： Yeheskel Bar-Ness ,  Ye-Hoon Lee ,  Dong-Ho Kim ,  Guillem Malagarriga

发明人： Yeheskel Bar-Ness ,  Ye-Hoon Lee ,  Dong-Ho Kim ,  Guillem Malagarriga

IPC分类号： H04J3/24

CPC分类号： H04B7/0669 ,  H04B7/0623 ,  H04B7/0697 ,  H04B7/0848 ,  H04L1/0009 ,  H04L1/0625 ,  H04L1/0668 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1867

摘要： A method is provided for ordering retransmissions in a Multi-Input Multi-Output (MIMO) system using N×M antennas. A transmitter splits a coded data stream into N sub-packets, and transmits the N sub-packets to a receiver via N transmission antennas. The receiver removes interferences of the N sub-packets received via M reception antennas, and independently decodes the interference-removed sub-packets. The receiver transmits an acknowledgement (ACK) or a negative acknowledgement (NACK) to the transmitter based on errors included in the decoded sub-packets. Upon receipt of the NACK, the transmitter retransmits to the receiver a sub-packet retransmission using ordering based on an Alamouti space-time coding scheme.

摘要翻译： 提供了一种使用N×M个天线在多输入多输出（MIMO）系统中排序重传的方法。 发送器将编码数据流分解成N个子分组，并且经由N个发送天线将N个子分组发送到接收机。 接收器去除经由M个接收天线接收到的N个子分组的干扰，并且独立地解码干扰消除的子分组。 接收机基于解码的子分组中包含的错误向发射机发送确认（ACK）或否定确认（NACK）。 在接收到NACK时，发射机基于Alamouti时空编码方案使用排序向接收机重发子分组。

公开(公告)号：US20070115864A1

公开(公告)日：2007-05-24

申请号：US11503289

申请日：2006-08-11

申请人： Yeheskel Bar-Ness ,  Ye-Hoon Lee ,  Dong-Ho Kim ,  Guillem Malagarriga

发明人： Yeheskel Bar-Ness ,  Ye-Hoon Lee ,  Dong-Ho Kim ,  Guillem Malagarriga

IPC分类号： H04B7/005 ,  H04Q7/00

CPC分类号： H04B7/0669 ,  H04B7/0623 ,  H04B7/0697 ,  H04B7/0848 ,  H04L1/0009 ,  H04L1/0625 ,  H04L1/0668 ,  H04L1/1607 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1867

摘要： A method is provided for ordering retransmissions in a Multi-Input Multi-Output (MIMO) system using N×M antennas. A transmitter splits a coded data stream into N sub-packets, and transmits the N sub-packets to a receiver via N transmission antennas. The receiver removes interferences of the N sub-packets received via M reception antennas, and independently decodes the interference-removed sub-packets. The receiver transmits an acknowledgement (ACK) or a negative acknowledgement (NACK) to the transmitter based on errors included in the decoded sub-packets. Upon receipt of the NACK, the transmitter retransmits to the receiver a sub-packet retransmission using ordering based on an Alamouti space-time coding scheme.

摘要翻译： 提供了一种用于使用N×M个天线在多输入多输出（MIMO）系统中排序重传的方法。 发送器将编码数据流分解成N个子分组，并且经由N个发送天线将N个子分组发送到接收机。 接收器去除经由M个接收天线接收到的N个子分组的干扰，并且独立地解码干扰消除的子分组。 接收机基于解码的子分组中包含的错误向发射机发送确认（ACK）或否定确认（NACK）。 在接收到NACK时，发射机基于Alamouti时空编码方案使用排序向接收机重发子分组。

公开(公告)号：US07408975B2

公开(公告)日：2008-08-05

申请号：US11076751

申请日：2005-03-10

申请人： Yeheskel Bar-Ness ,  Ye Hoon Lee

发明人： Yeheskel Bar-Ness ,  Ye Hoon Lee

IPC分类号： H04B1/00

CPC分类号： H04B1/71072 ,  H04B2201/70706 ,  H04W52/16 ,  H04W52/248

摘要： Transmit power adaptation for DS/CDMA systems is disclosed for a CDMA system that utilizes a successive interference cancellation receiver on fading channels. The transmission power is adapted in response to channel variations to achieve an arbitrary power profile for received signal powers at the system base station. That is, the received signal powers are distributed with some factor xi's given as: SRi=SR(1)xi, (i=2, 3, . . . , K and x1=1) where K is the number of users and SR(i) is the received signal power of the user having the ith strength, and wherein user strengths are ranked in the order of estimated channel gains. The factor xi gives a measure of the disparity between the received power levels. The channel is estimated at both the transmitter and receiver. In one embodiment, the factors, xi, for distributing the signal powers are selected such that the average BER for each user is minimized. In another embodiment, the factors, xi, for distributing the signal powers are selected such that, after successive interference cancellation, an instantaneous BER for all users is equal.

摘要翻译： 对于在衰落信道上利用连续干扰消除接收机的CDMA系统，公开了用于DS / CDMA系统的发射功率适配。 传输功率是响应于信道变化而适应的，以实现系统基站处的接收信号功率的任意功率分布。 也就是说，接收的信号功率以给定的一些因子x分配：<？in-line-formula description =“In-line Formulas”end =“lead”？> S < （1）其中（i = 2，...，n） 3，...，K和x 1 = 1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中K是用户数， （i）是具有第i个强度的用户的接收信号功率，并且其中用户强度按照 估计渠道收益。 因子x i i给出了接收功率电平之间的差异的度量。 在发射机和接收机两者估计信道。 在一个实施例中，选择用于分配信号功率的因子，使得每个用户的平均BER被最小化。 在另一个实施例中，选择用于分配信号功率的因子，使得在连续干扰消除之后，所有用户的瞬时BER相等。

公开(公告)号：US20050201446A1

公开(公告)日：2005-09-15

申请号：US11075254

申请日：2005-03-08

申请人： Yeheskel Bar-Ness ,  Jordi Diaz

发明人： Yeheskel Bar-Ness ,  Jordi Diaz

IPC分类号： H04B1/69

CPC分类号： H04B1/7183 ,  H04B1/7176 ,  H04B1/719

摘要： Optimum usage of time diversity and significantly higher data rates are achieved by utilizing an adaptive Ultra-wideband impulse radio (UWB IR) transmission scheme based upon information about the channel state at a particular time instant. Through the use of channel state information, the transmission scheme is adjusted for the particular channel state. In particular, the system is adapted dynamically for each user by varying the number of pulses transmitted per bit in response to the channel state. The channel state is a dynamic parameter of the transmission system that is typically measured or estimated by the receiver. An adaptation element responds to the channel state information to determine a desired number of pulses per bit to be utilized in a transmission channel for subsequent UWB IR communication. This desired number of pulses per bit is then supplied to and used by an adaptive transmitter for subsequent transmission by a particular mobile station.

摘要翻译： 通过利用基于在特定时刻的信道状态的信息的自适应超宽带脉冲无线电（UWB IR）传输方案来实现时间分集和显着更高数据速率的最佳使用。 通过使用信道状态信息，针对特定信道状态调整传输方案。 特别地，通过响应于信道状态改变每比特发送的脉冲数，系统针对每个用户动态地适配。 信道状态是通常由接收机测量或估计的传输系统的动态参数。 适应元件响应于信道状态信息，以确定用于随后的UWB IR通信的传输信道中要利用的每个位的所需脉冲数。 然后将每个位的所需数量的脉冲提供给自适应发射机并由特定移动台进行后续传输。

公开(公告)号：US07386045B2

公开(公告)日：2008-06-10

申请号：US11075254

申请日：2005-03-08

申请人： Yeheskel Bar-Ness ,  Jordi Diaz

发明人： Yeheskel Bar-Ness ,  Jordi Diaz

IPC分类号： H03K7/08 ,  H03K7/04

CPC分类号： H04B1/7183 ,  H04B1/7176 ,  H04B1/719

摘要： Optimum usage of time diversity and significantly higher data rates are achieved by utilizing an adaptive Ultra-wideband impulse radio (UWB IR) transmission scheme based upon information about the channel state at a particular time instant. Through the use of channel state information, the transmission scheme is adjusted for the particular channel state. In particular, the system is adapted dynamically for each user by varying the number of pulses transmitted per bit in response to the channel state. The channel state is a dynamic parameter of the transmission system that is typically measured or estimated by the receiver. An adaptation element responds to the channel state information to determine a desired number of pulses per bit to be utilized in a transmission channel for subsequent UWB IR communication. This desired number of pulses per bit is then supplied to and used by an adaptive transmitter for subsequent transmission by a particular mobile station.

摘要翻译： 通过利用基于在特定时刻的信道状态的信息的自适应超宽带脉冲无线电（UWB IR）传输方案来实现时间分集和显着更高数据速率的最佳使用。 通过使用信道状态信息，针对特定信道状态调整传输方案。 特别地，通过响应于信道状态改变每比特发送的脉冲数，系统针对每个用户动态地适配。 信道状态是通常由接收机测量或估计的传输系统的动态参数。 适应元件响应于信道状态信息，以确定用于随后的UWB IR通信的传输信道中要利用的每个位的所需脉冲数。 然后将每个位的所需数量的脉冲提供给自适应发射机并由特定移动台进行后续传输。

公开(公告)号：US07483493B2

公开(公告)日：2009-01-27

申请号：US11077435

申请日：2005-03-10

申请人： Yeheskel Bar-Ness ,  Ye Hoon Lee

发明人： Yeheskel Bar-Ness ,  Ye Hoon Lee

IPC分类号： H04L1/02

CPC分类号： H04W52/42 ,  H04L27/2608

摘要： Practical transmission power adaptation in multicarrier code division multiple access (MC-CDMA) communications is using either a frequency domain technique or a time domain technique or a combined frequency and time domain technique in response to channel variations. With frequency domain power adaptation, the transmission power is allocated over the N′ (1≦N′≦N) strongest subcarriers rather than over all possible N subcarriers, where the strongest subcarriers are understood to exhibit the highest channel gains. A substantially optimal N′ can be chosen so that the average bit error rate (BER) is minimized. In the time domain power adaptation technique, transmission power is adapted so that the desired signal strength at the receiver output is maintained at a fixed level. In the combined time and frequency domain adaptation technique, the transmission power is first allocated over the N′ (1≦N′≦N) strongest subcarriers rather than over all possible N subcarriers and then it is adapted so that the desired signal strength at the receiver output is maintained at a fixed level.

摘要翻译： 多载波码分多址（MC-CDMA）通信中的实际发射功率适配采用频域技术或时域技术，或者采用组合频域和时域技术来响应信道变化。 通过频域功率自适应，发射功率分配在N'（1 <= N'<= N）个最强子载波上，而不是在所有可能的N个子载波上分配，其中最强子载波被理解为呈现最高信道增益。 可以选择基本上最佳的N'，使得平均误码率（BER）被最小化。 在时域功率自适应技术中，发射功率被适配成使得接收机输出端的期望信号强度保持在固定的水平。 在组合的时域和频域适应技术中，首先在N'（1 <= N'<= N）个最强子载波上分配发射功率，而不是在所有可能的N个子载波上分配发射功率，然后适配使得所需的信号强度 在接收机输出端保持固定的电平。

公开(公告)号：US07860179B2

公开(公告)日：2010-12-28

申请号：US12349219

申请日：2009-01-06

申请人： Yeheskel Bar-Ness ,  Ye-Hoon Lee

发明人： Yeheskel Bar-Ness ,  Ye-Hoon Lee

IPC分类号： H04L1/02 ,  H04B7/00

CPC分类号： H04W52/42 ,  H04L27/2608

摘要： Practical transmission power adaptation in multicarrier code division multiple access (MC-CDMA) communications is using either a frequency domain technique or a time domain technique or a combined frequency and time domain technique in response to channel variations. With frequency domain power adaptation, the transmission power is allocated over the N′ (1≦N′≦N) strongest subcarriers rather than over all possible N subcarriers, where the strongest subcarriers are understood to exhibit the highest channel gains. A substantially optimal N′ can be chosen so that the average bit error rate (BER) is minimized. In the time domain power adaptation technique, transmission power is adapted so that the desired signal strength at the receiver output is maintained at a fixed level. In the combined time and frequency domain adaptation technique, the transmission power is first allocated over the N′ (1≦N′≦N) strongest subcarriers rather than over all possible N subcarriers and then it is adapted so that the desired signal strength at the receiver output is maintained at a fixed level.

摘要翻译： 多载波码分多址（MC-CDMA）通信中的实际发射功率适配采用频域技术或时域技术，或者采用组合频域和时域技术来响应信道变化。 通过频域功率自适应，发射功率分配在N'（1＆nlE; N'和nlE; N）个最强子载波上，而不是在所有可能的N个子载波上分配，其中最强子载波被理解为呈现最高信道增益。 可以选择基本上最佳的N'，使得平均误码率（BER）被最小化。 在时域功率自适应技术中，发射功率被适配成使得接收机输出端的期望信号强度保持在固定的水平。 在组合的时域和频域自适应技术中，首先在N'（1＆nlE; N'和nlE; N）个最强子载波上分配发射功率，而不是在所有可能的N个子载波上分配发射功率，然后将其适应于 接收机输出保持在固定的水平。