公开(公告)号：US08238455B2

公开(公告)日：2012-08-07

申请号：US12314239

申请日：2008-12-05

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04L27/28

CPC分类号： H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

摘要： Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, ηRS, and the plurality of T2P calculation methods is established. A user-specific T2P ratio PB,k/PRS for certain OFDM symbols, a RS overhead ratio ηRS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ηRS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio PB,k/PRS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio PB,k/PRS, and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

摘要翻译： 在通信系统中的下行链路物理下行链路共享信道（PDSCH）中发送功率设定信息的方法和装置。 在该通信系统中，建立了用于计算业务导频比（T2P）的多种方法。 另外，建立了多个开销信号与多个参考信号（RS）开销比“RS”和多个T2P计算方法之间的映射方案。 对于某些OFDM符号的用户特定T2P比PB，k / PRS，RS开销比和RS以及从多个T2P计算方法中选择的计算方法被分配给无线终端。 然后，根据映射方案选择对应于所分配的RS开销比＆amp; RS和分配的T2P计算方法的开销信号，并将其发送到无线终端。 此外，将用户特定的业务导频比PB，k / PRS发送到无线终端。 无线终端可以根据接收到的业务导频比PB，k / PRS和RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比 RS开销信号。

公开(公告)号：US20120307761A1

公开(公告)日：2012-12-06

申请号：US13541293

申请日：2012-07-03

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04W52/14

CPC分类号： H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

摘要： In a communication system, a base station transmits power setting information in a downlink Physical Downlink Shared Channel (PDSCH). A mapping scheme between overhead signals and reference signal (RS) overhead ratios, and the traffic-to-pilot ratios (T2P) calculation methods are established. A user-specific T2P ratio for certain OFDM symbols, a RS overhead ratio and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. An overhead signal corresponding to the assigned RS overhead ratio and the assigned T2P calculation method is selected in accordance with the mapping scheme and transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio is transmitted to the wireless terminal. The wireless terminal calculates the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols based on the received traffic-to-pilot ratio, the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

摘要翻译： 在通信系统中，基站在下行物理下行链路共享信道（PDSCH）中发送功率设定信息。 建立了开销信号和参考信号（RS）开销比之间的映射方案，以及业务导频比（T2P）计算方法。 将特定的OFDM符号的用户特定T2P比率，从RSP开销比和从多个T2P计算方法中选择的计算方法分配给无线终端。 根据映射方案选择与分配的RS开销比对应的开销信号和分配的T2P计算方法，并发送给无线终端。 此外，用户特定的业务导频比被发送到无线终端。 无线终端基于由RS开销信号指示的接收的业务导频比，RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比。

公开(公告)号：US20090041151A1

公开(公告)日：2009-02-12

申请号：US12155311

申请日：2008-06-02

申请人： Farooq Khan ,  Zhouyue Pi ,  Jiannan Tsai ,  Jianzhong Zhang

发明人： Farooq Khan ,  Zhouyue Pi ,  Jiannan Tsai ,  Jianzhong Zhang

IPC分类号： H04B7/14 ,  H04L27/28

CPC分类号： H04L5/0023 ,  H04L1/0606 ,  H04L1/0618 ,  H04L5/005 ,  H04L25/0204

摘要： Methods and circuits for assigning pilot boosting factors and calculating traffic to pilot ratios in a wireless communication system. The data to be transmitted is first modulated to generate a plurality of data modulation symbols. The plurality of data modulation symbols and a plurality of reference signal symbols are mapped into transmission resources of each of a plurality of antennas in accordance with a transmit diversity scheme. The transmission resources of each of the antennas are divided into a plurality of subcarriers in a frequency domain and a plurality of time units in a time domain. Then, a power scaling factor are assigned for data modulation symbols on each of the antennas in dependence upon power levels of the reference signal symbols to maintain a fixed power level across the plurality of antennas in each time unit. Finally, the data modulation symbols and the reference signal symbols are transmitted via the plurality of antennas in accordance with the mapping scheme and the assigned scaling factors.

摘要翻译： 用于在无线通信系统中分配导频升压因子和计算导频比的业务量的方法和电路。 要发送的数据首先被调制以产生多个数据调制符号。 根据发射分集方案，将多个数据调制符号和多个参考信号符号映射到多个天线中的每一个的传输资源。 每个天线的传输资源在时域中分为多个子载波和时域中的多个时间单元。 然后，根据参考信号符号的功率电平为每个天线上的数据调制符号分配功率缩放因子，以在每个时间单位中跨多个天线维持固定功率电平。 最后，根据映射方案和所分配的缩放因子，经由多个天线发送数据调制符号和参考信号符号。

公开(公告)号：US20090175371A1

公开(公告)日：2009-07-09

申请号：US12314239

申请日：2008-12-05

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04L27/28

CPC分类号： H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

摘要： Methods and apparatus for transmitting power setting information in a downlink Physical Downlink Shared Channel (PDSCH) in a communication system. In this communication system, a plurality of methods for calculating traffic-to-pilot ratios (T2P) are established. In addition, a mapping scheme between a plurality of overhead signals and a plurality of reference signal (RS) overhead ratios, ηRS, and the plurality of T2P calculation methods is established. A user-specific T2P ratio PB,k/PRS for certain OFDM symbols, a RS overhead ratio ηRS and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. Then, an overhead signal corresponding to both of the assigned RS overhead ratio ηRS and the assigned T2P calculation method is selected in accordance with the mapping scheme and is transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio PB,k/PRS is transmitted to the wireless terminal. The wireless terminal may calculate the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols in dependence upon the received traffic-to-pilot ratio PB,k/PRS, and the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

摘要翻译： 在通信系统中的下行链路物理下行链路共享信道（PDSCH）中发送功率设定信息的方法和装置。 在该通信系统中，建立了用于计算业务导频比（T2P）的多种方法。 此外，建立了多个开销信号与多个参考信号（RS）开销比，etaRS和多个T2P计算方法之间的映射方案。 对于无线终端，分配用于特定OFDM符号的用户特定T2P比率PB，k / PRS，RS开销比率etaRS以及从多个T2P计算方法中选择的计算方法。 然后，根据映射方案选择对应于所分配的RS开销比etaRS和所分配的T2P计算方法的开销信号，并将其发送到无线终端。 此外，将用户特定的业务导频比PB，k / PRS发送到无线终端。 无线终端可以根据接收到的业务导频比PB，k / PRS和RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比 RS开销信号。

公开(公告)号：US20090163142A1

公开(公告)日：2009-06-25

申请号：US12232376

申请日：2008-09-16

申请人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

发明人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04B17/00

CPC分类号： H04B7/0632 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/006 ,  H04W24/10 ,  H04W72/08

摘要： Methods and apparatus for feeding back channel quality indication in a communication system. First, a first channel quality indication index is determined in dependence upon a channel quality estimation of a first transmission channel, and a second channel quality indication index is determined in dependence upon a channel quality estimation of a second transmission channel. A differential channel quality indication index of the second channel quality indication index is determined with reference to the first channel quality indication index in dependence upon a differential compression scheme. Then, the first channel quality indication index and the differential channel quality indication index are reported.

摘要翻译： 在通信系统中反馈信道质量指示的方法和装置。 首先，根据第一传输信道的信道质量估计来确定第一信道质量指示索引，并且根据第二传输信道的信道质量估计来确定第二信道质量指示索引。 参考第一信道质量指示索引来确定第二信道质量指示索引的差分信道质量指示索引，这取决于差分压缩方案。 然后，报告第一信道质量指示索引和差分信道质量指示索引。

公开(公告)号：US08699960B2

公开(公告)日：2014-04-15

申请号：US12232376

申请日：2008-09-16

申请人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

发明人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04B1/00

CPC分类号： H04B7/0632 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/006 ,  H04W24/10 ,  H04W72/08

摘要： Methods and apparatus for feeding back channel quality indication in a communication system. First, a first channel quality indication index is determined in dependence upon a channel quality estimation of a first transmission channel, and a second channel quality indication index is determined in dependence upon a channel quality estimation of a second transmission channel. A differential channel quality indication index of the second channel quality indication index is determined with reference to the first channel quality indication index in dependence upon a differential compression scheme. Then, the first channel quality indication index and the differential channel quality indication index are reported.

摘要翻译： 在通信系统中反馈信道质量指示的方法和装置。 首先，根据第一传输信道的信道质量估计来确定第一信道质量指示索引，并且根据第二传输信道的信道质量估计来确定第二信道质量指示索引。 参考第一信道质量指示索引来确定第二信道质量指示索引的差分信道质量指示索引，这取决于差分压缩方案。 然后，报告第一信道质量指示索引和差分信道质量指示索引。

公开(公告)号：US08509350B2

公开(公告)日：2013-08-13

申请号：US13541293

申请日：2012-07-03

申请人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

发明人： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04L27/00

CPC分类号： H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

摘要： In a communication system, a base station transmits power setting information in a downlink Physical Downlink Shared Channel (PDSCH). A mapping scheme between overhead signals and reference signal (RS) overhead ratios, and the traffic-to-pilot ratios (T2P) calculation methods are established. A user-specific T2P ratio for certain OFDM symbols, a RS overhead ratio and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. An overhead signal corresponding to the assigned RS overhead ratio and the assigned T2P calculation method is selected in accordance with the mapping scheme and transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio is transmitted to the wireless terminal. The wireless terminal calculates the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols based on the received traffic-to-pilot ratio, the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

摘要翻译： 在通信系统中，基站在下行物理下行链路共享信道（PDSCH）中发送功率设定信息。 建立了开销信号和参考信号（RS）开销比之间的映射方案，以及业务导频比（T2P）计算方法。 将特定的OFDM符号的用户特定T2P比率，从RSP开销比和从多个T2P计算方法中选择的计算方法分配给无线终端。 根据映射方案选择与分配的RS开销比对应的开销信号和分配的T2P计算方法，并发送给无线终端。 此外，用户特定的业务导频比被发送到无线终端。 无线终端基于由RS开销信号指示的接收的业务导频比，RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比。

公开(公告)号：US08369450B2

公开(公告)日：2013-02-05

申请号：US12155311

申请日：2008-06-02

申请人： Farooq Khan ,  Zhouyue Pi ,  Jiannan Tsai ,  Jianzhong Zhang

发明人： Farooq Khan ,  Zhouyue Pi ,  Jiannan Tsai ,  Jianzhong Zhang

IPC分类号： H04L27/00 ,  H04B7/06

CPC分类号： H04L5/0023 ,  H04L1/0606 ,  H04L1/0618 ,  H04L5/005 ,  H04L25/0204

摘要： Methods and circuits for assigning pilot boosting factors and calculating traffic to pilot ratios in a wireless communication system. The data to be transmitted is first modulated to generate a plurality of data modulation symbols. The plurality of data modulation symbols and a plurality of reference signal symbols are mapped into transmission resources of each of a plurality of antennas in accordance with a transmit diversity scheme. The transmission resources of each of the antennas are divided into a plurality of subcarriers in a frequency domain and a plurality of time units in a time domain. Then, a power scaling factor are assigned for data modulation symbols on each of the antennas in dependence upon power levels of the reference signal symbols to maintain a fixed power level across the plurality of antennas in each time unit. Finally, the data modulation symbols and the reference signal symbols are transmitted via the plurality of antennas in accordance with the mapping scheme and the assigned scaling factors.

公开(公告)号：US20080307427A1

公开(公告)日：2008-12-11

申请号：US12155096

申请日：2008-05-29

申请人： Zhouyue Pi ,  Jiannan Tsai ,  Farooq Khan

发明人： Zhouyue Pi ,  Jiannan Tsai ,  Farooq Khan

IPC分类号： G06F9/50

CPC分类号： H04L5/0016 ,  H03M7/24 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/6306 ,  H03M13/6525 ,  H04J13/18 ,  H04L1/1819 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/0046 ,  H04L5/0064 ,  H04W72/044

摘要： A method and apparatus for channel interleaving in a wireless communication system. In one aspect of the present invention, the data resource elements are assigned to multiple code blocks, and the numbers of data resource elements assigned to each code block are substantially equal. In another aspect of the present invention, a time-domain-multiplexing-first (TDM-first) approach and a frequency-domain-multiplexing-first (FDM-first) approach are proposed. In the TDM-first approach, at least one of a plurality of code blocks are assigned with a number of consecutive data carrying OFDM symbols. In the FDM-first approach, at least one of the plurality of code blocks are assigned with all of the data carrying OFDM symbols. Either one of the TDM first approach and the FDM-first approach may be selected in dependence upon the number of the code blocks, or the transport block size, or the data rate.

摘要翻译： 一种用于无线通信系统中的信道交织的方法和装置。 在本发明的一个方面，将数据资源元素分配给多个代码块，分配给每个代码块的数据资源元素的数量基本相等。 在本发明的另一方面，提出了时域多路复用优先（TDM-first）方法和频域多路复用优先（FDM-first）方法。 在TDM第一方法中，多个码块中的至少一个被分配有携带OFDM符号的多个连续数据。 在FDM优先方法中，为所述多个码块中的至少一个分配有携带OFDM符号的所有数据。 可以根据代码块的数量或传输块大小或数据速率来选择TDM第一方法和FDM优先方法之一。

公开(公告)号：US08908632B2

公开(公告)日：2014-12-09

申请号：US12155096

申请日：2008-05-29

申请人： Zhouyue Pi ,  Jiannan Tsai ,  Farooq Khan

发明人： Zhouyue Pi ,  Jiannan Tsai ,  Farooq Khan

IPC分类号： H04W4/00 ,  H04W72/04 ,  H03M13/27 ,  H03M13/00 ,  H04L5/00 ,  H03M7/24 ,  H03M13/29 ,  H04J13/18 ,  H04L1/18

CPC分类号： H04L5/0016 ,  H03M7/24 ,  H03M13/27 ,  H03M13/2957 ,  H03M13/6306 ,  H03M13/6525 ,  H04J13/18 ,  H04L1/1819 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0041 ,  H04L5/0046 ,  H04L5/0064 ,  H04W72/044

摘要： A method and apparatus for channel interleaving in a wireless communication system. In one aspect of the present invention, the data resource elements are assigned to multiple code blocks, and the numbers of data resource elements assigned to each code block are substantially equal. In another aspect of the present invention, a time-domain-multiplexing-first (TDM-first) approach and a frequency-domain-multiplexing-first (FDM-first) approach are proposed. In the TDM-first approach, at least one of a plurality of code blocks are assigned with a number of consecutive data carrying OFDM symbols. In the FDM-first approach, at least one of the plurality of code blocks are assigned with all of the data carrying OFDM symbols. Either one of the TDM first approach and the FDM-first approach may be selected in dependence upon the number of the code blocks, or the transport block size, or the data rate.

摘要翻译： 一种用于无线通信系统中的信道交织的方法和装置。 在本发明的一个方面，将数据资源元素分配给多个代码块，分配给每个代码块的数据资源元素的数量基本相等。 在本发明的另一方面，提出了时域多路复用优先（TDM-first）方法和频域多路复用优先（FDM-first）方法。 在TDM第一方法中，多个码块中的至少一个被分配有携带OFDM符号的多个连续数据。 在FDM优先方法中，为所述多个码块中的至少一个分配有携带OFDM符号的所有数据。 可以根据代码块的数量或传输块大小或数据速率来选择TDM第一方法和FDM优先方法之一。