公开(公告)号：US08934361B2

公开(公告)日：2015-01-13

申请号：US13264963

申请日：2009-04-17

申请人： Yuan He ,  Dengkun Xiao ,  Jian Huang ,  Chunfeng Yao ,  Yaojun Wang

发明人： Yuan He ,  Dengkun Xiao ,  Jian Huang ,  Chunfeng Yao ,  Yaojun Wang

IPC分类号： H04L12/26 ,  H04W4/00 ,  H04J4/00 ,  H04L5/00 ,  H04W16/10

CPC分类号： H04L5/0062 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0073 ,  H04L5/0091 ,  H04W16/10

摘要： Embodiments of the present invention disclose a downlink Inter-Cell Interference Coordination (ICIC) method and relate to the wireless communication field. The method includes: obtaining information about multiple carriers in a current cell; obtaining, according to the information about the multiple carriers, a downlink ICIC parameter corresponding to each carrier of the multiple carriers; and sending the downlink ICIC parameter corresponding to each carrier to a neighboring cell of the current cell so as to enable the neighboring cell to perform, according to the downlink ICIC parameter, downlink interference coordination with the first cell. The embodiments of the present invention are applicable to downlink ICIC in a multi-carrier system.

摘要翻译： 本发明的实施例公开了下行链路小区间干扰协调（ICIC）方法并涉及无线通信领域。 该方法包括：获取关于当前小区中的多个载波的信息; 根据关于所述多个载波的信息，获得与所述多载波的每个载波对应的下行ICIC参数; 并将与每个载波相对应的下行ICIC参数发送到当前小区的相邻小区，以使得相邻小区能够根据下行ICIC参数执行与第一小区的下行干扰协调。 本发明的实施例可应用于多载波系统中的下行ICIC。

公开(公告)号：US09072062B2

公开(公告)日：2015-06-30

申请号：US13446561

申请日：2012-04-13

申请人： Dengkun Xiao ,  Anjian Li ,  Yuan He ,  Jing Han ,  Wenjie Wang ,  Chunfeng Yao

发明人： Dengkun Xiao ,  Anjian Li ,  Yuan He ,  Jing Han ,  Wenjie Wang ,  Chunfeng Yao

IPC分类号： H04B7/00 ,  H04W52/30 ,  H04W52/14 ,  H04W52/34 ,  H04W52/44

CPC分类号： H04W52/30 ,  H04W52/146 ,  H04W52/34 ,  H04W52/343 ,  H04W52/44

摘要： A method for controlling uplink power of an LTE system, a base station, and a mobile terminal are disclosed according to the embodiments of the present invention. The method includes: obtaining uplink transmit power of each carrier; sending first notification signaling to a base station if a difference between the obtained uplink transmit power of each carrier exceeds a specific threshold; and sending second notification signaling to the base station if a sum of the obtained uplink transmit power of each carrier exceeds a preset threshold. Thresholds are determined according to network conditions, and uplink power of a carrier is adjusted in a balanced way, a bit error rate is reduced and a case that a low-performance carrier is forced to be interrupted is prevented.

摘要翻译： 根据本发明的实施例公开了一种用于控制LTE系统，基站和移动终端的上行链路功率的方法。 该方法包括：获取每个载波的上行发射功率; 如果所获得的每个载波的上行链路发射功率之间的差异超过特定阈值，则向基站发送第一通知信令; 以及如果所获得的每个载波的上行链路发射功率的和超过预设阈值，则向所述基站发送第二通知信令。 根据网络条件确定阈值，并且以平衡的方式调整载波的上行链路功率，减少误码率，并且防止低性能载波被强制中断的情况。

公开(公告)号：US20120196643A1

公开(公告)日：2012-08-02

申请号：US13446561

申请日：2012-04-13

申请人： Dengkun Xiao ,  Anjian Li ,  Yuan He ,  Jing Han ,  Wenjie Wang ,  Chunfeng Yao

发明人： Dengkun Xiao ,  Anjian Li ,  Yuan He ,  Jing Han ,  Wenjie Wang ,  Chunfeng Yao

IPC分类号： H04W52/38 ,  H04W68/00

CPC分类号： H04W52/30 ,  H04W52/146 ,  H04W52/34 ,  H04W52/343 ,  H04W52/44

摘要： A method for controlling uplink power of an LTE system, a base station, and a mobile terminal are disclosed according to the embodiments of the present invention. The method includes: obtaining uplink transmit power of each carrier; sending first notification signaling to a base station if a difference between the obtained uplink transmit power of each carrier exceeds a specific threshold; and sending second notification signaling to the base station if a sum of the obtained uplink transmit power of each carrier exceeds a preset threshold. Thresholds are determined according to network conditions, and uplink power of a carrier is adjusted in a balanced way, a bit error rate is reduced and a case that a low-performance carrier is forced to be interrupted is prevented.

摘要翻译： 根据本发明的实施例公开了一种用于控制LTE系统，基站和移动终端的上行链路功率的方法。 该方法包括：获取每个载波的上行发射功率; 如果所获得的每个载波的上行链路发射功率之间的差异超过特定阈值，则向基站发送第一通知信令; 以及如果所获得的每个载波的上行链路发射功率的和超过预设阈值，则向所述基站发送第二通知信令。 根据网络条件确定阈值，并且以平衡的方式调整载波的上行链路功率，减少误码率，并且防止低性能载波被强制中断的情况。

公开(公告)号：US20130010896A1

公开(公告)日：2013-01-10

申请号：US13635905

申请日：2010-05-13

申请人： Li Jiao ,  Chunfeng Yao ,  Juan Zhang

发明人： Li Jiao ,  Chunfeng Yao ,  Juan Zhang

IPC分类号： H04L25/49

CPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0009 ,  Y02D50/10

摘要： A method and a system for selecting a pre-coding matrix in a closed loop MIMO system are provided. The method includes: traversing all pre-coding matrices and respectively calculating a CINR corresponding to each pre-coding matrix; and obtaining an MCS according to a CINR corresponding to a pre-coding matrix, calculating a spectral efficiency corresponding to the MCS, and selecting a pre-coding matrix with a largest spectral efficiency. According to the method and system provided by the present disclosure, an appropriate pre-coding matrix can be selected. By using the appropriate pre-coding matrix in the closed loop MIMO system, the channel quality, the throughput of a closed loop multiplexing system in the scenario that the channel changes slowly, and the gain can be improved. Besides, the method of the present disclosure can avoid calculation of the BER formula on the premise of a large number of assumptions, and reduce the computation complexity.

摘要翻译： 提供了一种用于在闭环MIMO系统中选择预编码矩阵的方法和系统。 该方法包括：遍历所有预编码矩阵并分别计算与每个预编码矩阵相对应的CINR; 并根据与预编码矩阵相对应的CINR获得MCS，计算与MCS对应的频谱效率，以及选择具有最大频谱效率的预编码矩阵。 根据本公开提供的方法和系统，可以选择适当的预编码矩阵。 通过在闭环MIMO系统中使用适当的预编码矩阵，可以提高信道质量，信道变化缓慢的情况下闭环复用系统的吞吐量和增益。 此外，本公开的方法可以在大量假设的前提下避免计算BER公式，并降低计算复杂度。

公开(公告)号：US20120033570A1

公开(公告)日：2012-02-09

申请号：US13264963

申请日：2009-04-17

申请人： Yuan He ,  Dengkun Xiao ,  Jian Huang ,  Chunfeng Yao ,  Yaojun Wang

发明人： Yuan He ,  Dengkun Xiao ,  Jian Huang ,  Chunfeng Yao ,  Yaojun Wang

IPC分类号： H04W24/00

CPC分类号： H04L5/0062 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0073 ,  H04L5/0091 ,  H04W16/10

摘要： Embodiments of the present invention disclose a downlink Inter-Cell Interference Coordination (ICIC) method and relate to the wireless communication field. The method includes: obtaining information about multiple carriers in a current cell; obtaining, according to the information about the multiple carriers, a downlink ICIC parameter corresponding to each carrier of the multiple carriers; and sending the downlink ICIC parameter corresponding to each carrier to a neighboring cell of the current cell so as to enable the neighboring cell to perform, according to the downlink ICIC parameter, downlink interference coordination with the first cell. The embodiments of the present invention are applicable to downlink ICIC in a multi-carrier system.

摘要翻译： 本发明的实施例公开了下行链路小区间干扰协调（ICIC）方法并涉及无线通信领域。 该方法包括：获取关于当前小区中的多个载波的信息; 根据关于所述多个载波的信息，获得与所述多载波的每个载波对应的下行ICIC参数; 并将与每个载波相对应的下行ICIC参数发送到当前小区的相邻小区，以使得相邻小区能够根据下行ICIC参数执行与第一小区的下行干扰协调。 本发明的实施例可应用于多载波系统中的下行ICIC。

公开(公告)号：US08787482B2

公开(公告)日：2014-07-22

申请号：US13635905

申请日：2010-05-13

申请人： Li Jiao ,  Chunfeng Yao ,  Juan Zhang

发明人： Li Jiao ,  Chunfeng Yao ,  Juan Zhang

IPC分类号： H04B7/02 ,  H04B7/04 ,  H04L1/00 ,  H04B7/06

CPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/0639 ,  H04L1/0003 ,  H04L1/0009 ,  Y02D50/10

摘要： A method and a system for selecting a pre-coding matrix in a closed loop MIMO system are provided. The method includes: traversing all pre-coding matrices and respectively calculating a CINR corresponding to each pre-coding matrix; and obtaining an MCS according to a CINR corresponding to a pre-coding matrix, calculating a spectral efficiency corresponding to the MCS, and selecting a pre-coding matrix with a largest spectral efficiency. According to the method and system provided by the present disclosure, an appropriate pre-coding matrix can be selected. By using the appropriate pre-coding matrix in the closed loop MIMO system, the channel quality, the throughput of a closed loop multiplexing system in the scenario that the channel changes slowly, and the gain can be improved. Besides, the method of the present disclosure can avoid calculation of the BER formula on the premise of a large number of assumptions, and reduce the computation complexity.

摘要翻译： 提供了一种用于在闭环MIMO系统中选择预编码矩阵的方法和系统。 该方法包括：遍历所有预编码矩阵并分别计算与每个预编码矩阵相对应的CINR; 并根据与预编码矩阵相对应的CINR获得MCS，计算与MCS对应的频谱效率，以及选择具有最大频谱效率的预编码矩阵。 根据本公开提供的方法和系统，可以选择适当的预编码矩阵。 通过在闭环MIMO系统中使用适当的预编码矩阵，可以提高信道质量，信道变化缓慢的情况下闭环复用系统的吞吐量和增益。 此外，本公开的方法可以在大量假设的前提下避免计算BER公式，并降低计算复杂度。