公开(公告)号：US07894380B2

公开(公告)日：2011-02-22

申请号：US11915114

申请日：2006-05-15

申请人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

发明人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

IPC分类号： H04B7/216 ,  H04W4/00

CPC分类号： H04W52/24 ,  H04W52/343

摘要： A power control method for a terminal, including: obtaining, by the terminal, a quality parameter of a received signal, a receiving power of a code channel occupied by the terminal and a power of code channels in a cell having the same carrier frequency and the same time slot as those of the code channel occupied by the terminal respectively, according to a received signal quality; determining the minimum receiving power which is permitted by the code channel occupied by the terminal according to the power of the code channels in the cell having the same carrier frequency and the same time slot as those of the code channel occupied by the terminal; and generating a power control command according to a determined minimum receiving power, the receiving power of the code channel occupied by the terminal and the quality parameter of the received signal.

摘要翻译： 一种终端的功率控制方法，包括：由终端获得接收信号的质量参数，终端占用的码信道的接收功率和具有相同载波频率的小区中的码信道的功率，以及 根据接收到的信号质量分别与终端占用的码信道相同的时隙; 根据与所述终端占用的所述码信道相同的载波频率和相同时隙的小区中的码信道的功率，确定由所述终端占用的所述码信道所允许的所述码信道所允许的最小接收功率; 以及根据所确定的最小接收功率，所述终端所占用的码信道的接收功率和接收到的信号的质量参数来产生功率控制命令。

公开(公告)号：US08418015B2

公开(公告)日：2013-04-09

申请号：US12663665

申请日：2008-06-06

申请人： Yanbo Cao ,  Hongqiang Li ,  Lu An ,  Yuanxin Qiao ,  Jianxun Sun ,  Yuxin Dong

发明人： Yanbo Cao ,  Hongqiang Li ,  Lu An ,  Yuanxin Qiao ,  Jianxun Sun ,  Yuxin Dong

IPC分类号： H04L1/18

CPC分类号： H03M13/1102 ,  H03M13/6306 ,  H04L1/0057 ,  H04L1/1819

摘要： The present invention discloses a method, an apparatus and a system for low-density parity-check (LDPC) coding and decoding. The coding method includes the following steps: constructing each layer of a check matrix of a layered LDPC code used as an error correcting code; when data is initially sent by a data transmitting terminal, performing first-layer-coding of the data to be sent by using the first layer of a check matrix of the LDPC code, sending the first-layer-coded data; when data for (n−1)th retransmission is sent by the data transmitting terminal, performing nth-layer-coding of the data by using the nth layer of a check matrix of the LDPC code, sending the nth-layer-coded data, wherein n is an integer no less than 2. It is possible to reduce the system overhead, decrease the decoding delay, and improve the decoding performance by using the technical solution of the present invention which is also adapted to high-speed data services.

摘要翻译： 本发明公开了一种用于低密度奇偶校验（LDPC）编码和解码的方法，装置和系统。 编码方法包括以下步骤：构建用作纠错码的分层LDPC码的校验矩阵的每一层; 当数据最初由数据发送终端发送时，通过使用LDPC码的校验矩阵的第一层对要发送的数据进行第一层编码，发送第一层编码数据; 当由数据发送终端发送第（n-1）次重发的数据时，通过使用LDPC码的校验矩阵的第n层进行数据的第n层编码，发送第n层编码数据， 其中n是不小于2的整数。通过使用也适用于高速数据业务的本发明的技术方案，可以减少系统开销，降低解码延迟并提高解码性能。

公开(公告)号：US20080194281A1

公开(公告)日：2008-08-14

申请号：US11915103

申请日：2006-05-15

申请人： Jianxun Sun ,  Tiezhu Xu

发明人： Jianxun Sun ,  Tiezhu Xu

IPC分类号： H04B7/00

CPC分类号： H04W52/346

摘要： A downlink power control method for base station, includes following steps: according to the received power control command, base station obtains the transmission power of each terminal occupying code channel; according to the transmission power of each terminal occupying code channel, determines the allowable minimum code channel power of each terminal; according to the determined minimum code channel power of each terminal, amends the transmission power of each terminal occupying code channel; according to the amended transmission power of each terminal occupying code channel, sends signals to the corresponding terminal respectively. Present invention could control the difference of signal power between different users, increase the stability of wireless link, and assure the quality of system communication.

摘要翻译： 一种用于基站的下行链路功率控制方法，包括以下步骤：根据接收到的功率控制命令，基站获取每个终端占用码信道的发射功率; 根据每个终端占用码信道的发射功率，确定每个终端的允许最小码信道功率; 根据确定的每个终端的最小码信道功率，修改每个终端占用码信道的发射功率; 根据每个终端占用代码信道的修改发送功率，分别向对应的终端发送信号。 本发明可以控制不同用户之间的信号功率差异，增加无线链路的稳定性，保证系统通信的质量。

公开(公告)号：US08116794B2

公开(公告)日：2012-02-14

申请号：US11969790

申请日：2008-01-04

申请人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

发明人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

IPC分类号： H04B7/00

CPC分类号： H04W28/18 ,  H04B1/7105 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04L25/0202 ,  H04W24/00

摘要： Finding a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell is disclosed. This can serve to mitigate interference caused by mobile terminals in neighboring cells in and among communications ongoing in a current cell. In one example, a method for A method for determining such a channel impulse response estimation window includes presetting, in the neighboring cell, at least two channel impulse response peak locations of respective mobile terminals in first and second predetermined periods with a predetermined peak location change pattern, and then upon receiving communication from a mobile terminal of the neighboring cell, analyzing channel impulse responses to identify the peak location change pattern with regard to first and second peak locations. The method further includes identifying a variation range for a channel impulse response of a primary path of the mobile terminal, and determining a channel impulse response estimation window for the mobile terminal based on the identified variation range and a preferred estimation window size.

摘要翻译： 公开了在相邻小区中的至少一个移动终端的当前小区中的信道脉冲响应估计窗口。 这可以用于减轻当前小区中正在进行的通信中的相邻小区中的移动终端造成的干扰。 在一个示例中，用于确定这样的信道脉冲响应估计窗口的A方法的方法包括在相邻小区中预定在第一和第二预定时段中各个移动终端的至少两个信道脉冲响应峰值位置具有预定的峰值位置变化 然后在从相邻小区的移动终端接收到通信时，分析信道脉冲响应以识别关于第一和第二峰位置的峰位置改变模式。 该方法还包括识别移动终端的主要路径的信道脉冲响应的变化范围，以及基于所识别的变化范围和优选估计窗口大小来确定移动终端的信道脉冲响应估计窗口。

公开(公告)号：US20080212548A1

公开(公告)日：2008-09-04

申请号：US11915114

申请日：2006-05-15

申请人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

发明人： Jianxun Sun ,  Yong Fan ,  Tiezhu Xu ,  Gang Niu

IPC分类号： H04B7/216

CPC分类号： H04W52/24 ,  H04W52/343

摘要： A terminal power control method includes following steps according to the quality of received signal, the terminal obtains quality parameter of received signal, received power of terminal occupying channel, and all the channel power in present cell which have the same carrier frequency and time slot with terminal occupying channel respectively; according to all the channel power in present cell which have the same carrier frequency and time slot with terminal occupying channel, determines the allowable received power minimum of terminal occupying channel; according to the allowable received power minimum of terminal occupying channel, received power of said terminal occupying channel and said received signal quality parameters, generates power control command. Present invention could control powers of signals in different channels, increase the demodulation performance of terminal and the stability of wireless link, and assure the quality of system communication.

摘要翻译： 终端功率控制方法包括根据接收信号质量的以下步骤，终端获取接收信号的质量参数，终端占用信道的接收功率，以及具有相同载波频率和时隙的当前小区中的所有信道功率， 终端占用通道; 根据具有终端占用信道相同载波频率和时隙的本小区的所有信道功率，确定终端占用信道的允许接收功率最小值; 根据终端占用信道的允许接收功率最小值，所述终端占用信道的接收功率和接收到的信号质量参数，生成功率控制命令。 本发明可以控制不同信道的信号功率，提高终端的解调性能和无线链路的稳定性，保证系统通信的质量。

公开(公告)号：US07917165B2

公开(公告)日：2011-03-29

申请号：US11915103

申请日：2006-05-15

申请人： Jianxun Sun ,  Tiezhu Xu

发明人： Jianxun Sun ,  Tiezhu Xu

IPC分类号： H04B7/00

CPC分类号： H04W52/346

摘要： The present invention discloses a power control method for a base station, including: adjusting, by the base station, a transmit power of a code-channel occupied by a terminal according to a power control command from the terminal; determining a permitted minimum code-channel power according to an adjusted transmit power of the code-channel occupied by the terminal; correcting the transmit power of the code-channel occupied by the terminal according to the minimum code-channel power; and transmitting signals to the terminal according to a corrected transmit power of the code-channel occupied by each terminal. By the present invention, the signal power difference between different users is controlled, the stability of the wireless link is improved, and the quality of system communication is guaranteed.

摘要翻译： 本发明公开了一种基站的功率控制方法，包括：基站根据来自终端的功率控制命令调整终端占用的码信道的发射功率; 根据由所述终端占用的所述码信道的经调整的发射功率确定允许的最小码信道功率; 根据最小码信道功率校正终端占用的码信道的发射功率; 以及根据每个终端所占用的码信道的校正发送功率向终端发送信号。 通过本发明，控制不同用户之间的信号功率差异，提高无线链路的稳定性，保证系统通信的质量。

公开(公告)号：US20100211841A1

公开(公告)日：2010-08-19

申请号：US12663665

申请日：2008-06-06

申请人： Yanbo Cao ,  Hongqiang Li ,  Lu An ,  Yuanxin Qiao ,  Jianxun Sun ,  Yuxin Dong

发明人： Yanbo Cao ,  Hongqiang Li ,  Lu An ,  Yuanxin Qiao ,  Jianxun Sun ,  Yuxin Dong

IPC分类号： H03M13/05 ,  G06F11/10 ,  H04L1/18 ,  G06F11/14

CPC分类号： H03M13/1102 ,  H03M13/6306 ,  H04L1/0057 ,  H04L1/1819

摘要： The present invention discloses a method, an apparatus and a system for low-density parity-check (LDPC) coding and decoding. The coding method includes the following steps: constructing each layer of a check matrix of a layered LDPC code used as an error correcting code; when data is initially sent by a data transmitting terminal, performing first-layer-coding of the data to be sent by using the first layer of a check matrix of the LDPC code, sending the first-layer-coded data; when data for (n−1)th retransmission is sent by the data transmitting terminal, performing nth-layer-coding of the data by using the nth layer of a check matrix of the LDPC code, sending the nth-layer-coded data, wherein n is an integer no less than 2. It is possible to reduce the system overhead, decrease the decoding delay, and improve the decoding performance by using the technical solution of the present invention which is also adapted to high-speed data services.

摘要翻译： 本发明公开了一种用于低密度奇偶校验（LDPC）编码和解码的方法，装置和系统。 编码方法包括以下步骤：构建用作纠错码的分层LDPC码的校验矩阵的每一层; 当数据最初由数据发送终端发送时，通过使用LDPC码的校验矩阵的第一层对要发送的数据进行第一层编码，发送第一层编码数据; 当由数据发送终端发送第（n-1）次重发的数据时，通过使用LDPC码的校验矩阵的第n层进行数据的第n层编码，发送第n层编码数据， 其中n是不小于2的整数。通过使用也适用于高速数据业务的本发明的技术方案，可以减少系统开销，降低解码延迟并提高解码性能。

公开(公告)号：US20080167030A1

公开(公告)日：2008-07-10

申请号：US11969790

申请日：2008-01-04

申请人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

发明人： Feng Li ,  Jianxun Sun ,  Yingmin Wang ,  Guiliang Yang ,  Tiezhu Xu

IPC分类号： H04Q7/20

CPC分类号： H04W28/18 ,  H04B1/7105 ,  H04B2201/70702 ,  H04B2201/709709 ,  H04L25/0202 ,  H04W24/00

摘要： Finding a channel impulse response estimation window in a current cell for at least one mobile terminal in a neighboring cell is disclosed. This can serve to mitigate interference caused by mobile terminals in neighboring cells in and among communications ongoing in a current cell. In one example, a method for A method for determining such a channel impulse response estimation window includes presetting, in the neighboring cell, at least two channel impulse response peak locations of respective mobile terminals in first and second predetermined periods with a predetermined peak location change pattern, and then upon receiving communication from a mobile terminal of the neighboring cell, analyzing channel impulse responses to identify the peak location change pattern with regard to first and second peak locations. The method further includes identifying a variation range for a channel impulse response of a primary path of the mobile terminal, and determining a channel impulse response estimation window for the mobile terminal based on the identified variation range and a preferred estimation window size.

摘要翻译： 公开了在相邻小区中的至少一个移动终端的当前小区中的信道脉冲响应估计窗口。 这可以用于减轻当前小区中正在进行的通信中的相邻小区中的移动终端造成的干扰。 在一个示例中，用于确定这样的信道脉冲响应估计窗口的A方法的方法包括在相邻小区中预定在第一和第二预定时段中各个移动终端的至少两个信道脉冲响应峰值位置具有预定的峰值位置变化 然后在从相邻小区的移动终端接收到通信时，分析信道脉冲响应以识别关于第一和第二峰位置的峰位置改变模式。 该方法还包括识别移动终端的主要路径的信道脉冲响应的变化范围，以及基于所识别的变化范围和优选估计窗口大小来确定移动终端的信道脉冲响应估计窗口。