公开(公告)号：US20100027502A1

公开(公告)日：2010-02-04

申请号：US12443978

申请日：2007-11-01

申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

IPC分类号： H04W72/04 ,  H04L27/28

CPC分类号： H04W72/0486 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0092 ,  H04W52/248 ,  H04W52/34

摘要： A system and method for facilitating resource management in OFDM systems is provided. The system permits different and flexible resource cell metric operations levels (e.g. uplink load management, admission control, congestion control, signal handoff control) for different sub-bands. For the uplink load management, there are multiple distinct load operation points (e.g. IoT, RoT) per sub-band group instead of the same operation level across the entire available band. The sub-band groups encompass the entire band. The facilitation system also comprises a variety of transmitting protocols, command increment variable stepsize methods and robust command response methods. The system thus provides more flexible reverse link resource management and more efficient utilization of the bandwidth.

摘要翻译： 提供了一种用于促进OFDM系统中的资源管理的系统和方法。 该系统允许针对不同子带的不同且灵活的资源小区度量操作级别（例如，上行链路负载管理，准入控制，拥塞控制，信号切换控制）。 对于上行链路负载管理，每个子带组存在多个不同的负载操作点（例如，IoT，RoT），而不是跨整个可用频带的相同操作级别。 子带组包含整个频带。 促进系统还包括各种传输协议，命令增量可变步长方法和鲁棒的命令响应方法。 因此，该系统提供更灵活的反向链路资源管理和带宽的更有效利用。

公开(公告)号：US08964703B2

公开(公告)日：2015-02-24

申请号：US12443978

申请日：2007-11-01

申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

IPC分类号： H04W4/00 ,  H04B7/216 ,  H04W52/34 ,  H04L5/00 ,  H04W52/24 ,  H04W72/04

CPC分类号： H04W72/0486 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0092 ,  H04W52/248 ,  H04W52/34

摘要： A system and method for facilitating resource management in OFDM systems is provided. The system permits different and flexible resource cell metric operations levels (e.g. uplink load management, admission control, congestion control, signal handoff control) for different sub-bands. For the uplink load management, there are multiple distinct load operation points (e.g. IoT, RoT) per sub-band group instead of the same operation level across the entire available band. The sub-band groups encompass the entire band. The facilitation system also comprises a variety of transmitting protocols, command increment variable stepsize methods and robust command response methods. The system thus provides more flexible reverse link resource management and more efficient utilization of the bandwidth.

公开(公告)号：US09178640B2

公开(公告)日：2015-11-03

申请号：US13212829

申请日：2011-08-18

申请人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

发明人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

IPC分类号： H04W56/00 ,  H04J11/00 ,  H04B1/707 ,  H04L5/00 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

CPC分类号： H04J11/0083 ,  H04B1/70718 ,  H04L5/0007 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

摘要： User equipment (UE) associated with synchronous networks operate in a synchronous mode while UEs associated with asynchronous networks operate in an asynchronous mode. When operating in a synchronous mode, a UE can significantly improve performance of synchronization signal detection, data decoding, and tracking loop management by using the interference cancellation (IC) techniques that are not available in an asynchronous mode of operation. Obtaining synchronization indicators and determining the synchronization status of the current network by UE is disclosed. The determination may be based on the synchronization indicator, whether detected through signal detection, signal measurements, signal analysis, or the like.

摘要翻译： 与同步网络相关联的用户设备（UE）以同步模式工作，而与异步网络相关联的UE以异步模式工作。 当在同步模式下工作时，UE可以通过使用在异步操作模式中不可用的干扰消除（IC）技术来显着提高同步信号检测，数据解码和跟踪环路管理的性能。 公开了获取同步指示符并确定UE当前网络的同步状态。 该确定可以基于通过信号检测，信号测量，信号分析等检测的同步指示器。

公开(公告)号：US08073481B2

公开(公告)日：2011-12-06

申请号：US11933971

申请日：2007-11-01

申请人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

发明人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

IPC分类号： H04B7/00

CPC分类号： H04W52/362 ,  H04W52/16 ,  H04W52/225 ,  H04W52/24 ,  H04W52/241 ,  H04W52/243 ,  H04W52/343 ,  H04W52/367

摘要： Techniques for performing interference and power control in a wireless communication system are described. An asymmetric power control scheme adjusts the transmit power of a user equipment (UE) in an asymmetric manner, e.g., with different up and down step sizes. In one design, a parameter value may be determined based on received SINR of at least one Node B. Up and down steps may be determined based on the parameter value and may have different sizes. At least one overloading indicator from at least one neighbor Node B may be obtained. The transmit power of the UE may be adjusted based on the up and down steps and the at least one overloading indicator. For example, the transmit power may be increased by the up step if an overloading indicator from the strongest neighbor Node B is not received and may be decreased by the down step otherwise.

摘要翻译： 描述了在无线通信系统中执行干扰和功率控制的技术。 非对称功率控制方案以不对称的方式调整用户设备（UE）的发射功率，例如具有不同的上下步长。 在一种设计中，可以基于至少一个节点B的接收到的SINR来确定参数值。可以基于参数值来确定上下步骤，并且可以具有不同的大小。 可以获得来自至少一个相邻节点B的至少一个过载指示符。 可以基于上下步骤和至少一个超载指示符来调整UE的发射功率。 例如，如果没有接收到来自最强的邻居节点B的过载指示符，则可以通过向上步长来增加发射功率，否则可以通过下降步长来减小发射功率。

公开(公告)号：US20080261645A1

公开(公告)日：2008-10-23

申请号：US11933971

申请日：2007-11-01

申请人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

发明人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

IPC分类号： H04B7/00 ,  H04B17/00

CPC分类号： H04W52/362 ,  H04W52/16 ,  H04W52/225 ,  H04W52/24 ,  H04W52/241 ,  H04W52/243 ,  H04W52/343 ,  H04W52/367

摘要： Techniques for performing interference and power control in a wireless communication system are described. An asymmetric power control scheme adjusts the transmit power of a user equipment (UE) in an asymmetric manner, e.g., with different up and down step sizes. In one design, a parameter value may be determined based on received SINR of at least one Node B. Up and down steps may be determined based on the parameter value and may have different sizes. At least one overloading indicator from at least one neighbor Node B may be obtained. The transmit power of the UE may be adjusted based on the up and down steps and the at least one overloading indicator. For example, the transmit power may be increased by the up step if an overloading indicator from the strongest neighbor Node B is not received and may be decreased by the down step otherwise.

摘要翻译： 描述了在无线通信系统中执行干扰和功率控制的技术。 非对称功率控制方案以不对称的方式调整用户设备（UE）的发射功率，例如具有不同的上下步长。 在一种设计中，可以基于至少一个节点B的接收到的SINR来确定参数值。可以基于参数值来确定上下步骤，并且可以具有不同的大小。 可以获得来自至少一个相邻节点B的至少一个过载指示符。 可以基于上下步骤和至少一个超载指示符来调整UE的发射功率。 例如，如果没有接收到来自最强的邻居节点B的过载指示符，则可以通过向上步长来增加发射功率，否则可以通过下降步长来减小发射功率。

公开(公告)号：US20120044928A1

公开(公告)日：2012-02-23

申请号：US13212829

申请日：2011-08-18

申请人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

发明人： Kapil Bhattad ,  Tao Luo ,  Taesang Yoo ,  Xiaoxia Zhang ,  Xiliang Luo ,  Ke Liu ,  Durga Prasad Malladi

IPC分类号： H04J3/06

CPC分类号： H04J11/0083 ,  H04B1/70718 ,  H04L5/0007 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

摘要： User equipment (UE) associated with synchronous networks operate in a synchronous mode while UEs associated with asynchronous networks operate in an asynchronous mode. When operating in a synchronous mode, a UE can significantly improve performance of synchronization signal detection, data decoding, and tracking loop management by using the interference cancellation (IC) techniques that are not available in an asynchronous mode of operation. Obtaining synchronization indicators and determining the synchronization status of the current network by UE is disclosed. The determination may be based on the synchronization indicator, whether detected through signal detection, signal measurements, signal analysis, or the like.

摘要翻译： 与同步网络相关联的用户设备（UE）以同步模式工作，而与异步网络相关联的UE以异步模式工作。 当在同步模式下工作时，UE可以通过使用在异步操作模式中不可用的干扰消除（IC）技术来显着提高同步信号检测，数据解码和跟踪环路管理的性能。 公开了获取同步指示符并确定UE当前网络的同步状态。 该确定可以基于通过信号检测，信号测量，信号分析等检测的同步指示器。

公开(公告)号：US08712424B2

公开(公告)日：2014-04-29

申请号：US12443780

申请日：2007-10-30

申请人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

发明人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

IPC分类号： H04B15/00

CPC分类号： H04W52/24 ,  H04W16/02 ,  H04W24/02 ,  H04W52/146 ,  H04W52/225 ,  H04W52/241 ,  H04W52/247 ,  H04W52/343

摘要： System(s) and method(s) are provided for inter-cell power control in the presence of fractional frequency reuse in a wireless communication system. Transmission power control of a terminal (210); and ensuing inter-cell interference mitigation, is accomplished by receiving load indicators (23Oi) from non-serving sectors (246i), decoding those load indicators corresponding to the non-serving sectors that operate in the same frequency bands as the terminal, and adjusting the transmission power according to the states of the decoded load indicators in conjunction with the associated non-serving sector forward link signal-to-interference and-noise ratio at the terminal. The states of the load indicators reflect magnitudes of interference metrics with respect to threshold values. Load indicators can also be conveyed by the non-serving sector to a base station (260) serving the terminal through a backhaul (250) communication, and said base station can schedule an adjusted transmission power for the terminal.

摘要翻译： 在无线通信系统中存在分数次频率重用的情况下，为单元间功率控制提供系统和方法。 终端（210）的传输功率控制; 并且随后进行小区间干扰减轻，是通过从非服务扇区（246i）接收负载指示符（230i）来完成的，解码对应于与终端在相同频带中工作的非服务扇区的那些负载指示符，并且调整 根据解码的负载指示符的状态结合在终端处的相关联的非服务扇区前向链路信号与干扰噪声比的发送功率。 负载指示器的状态反映相对于阈值的干扰度量的幅度。 负载指示符也可以由非服务扇区传送到通过回程（250）通信为终端服务的基站（260），并且所述基站可以为终端调度调整的传输功率。

公开(公告)号：US20100105406A1

公开(公告)日：2010-04-29

申请号：US12443780

申请日：2007-10-30

申请人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

发明人： Xiliang Luo ,  Durga Prasad Malladi ,  Xiaoxia Zhang

IPC分类号： H04W72/12 ,  H04B17/00

CPC分类号： H04W52/24 ,  H04W16/02 ,  H04W24/02 ,  H04W52/146 ,  H04W52/225 ,  H04W52/241 ,  H04W52/247 ,  H04W52/343

摘要： System(s) and method(s) are provided for inter-cell power control in the presence of fractional frequency reuse in a wireless communication system. Transmission power control of a terminal (210); and ensuing inter-cell interference mitigation, is accomplished by receiving load indicators (23Oi) from non-serving sectors (246i), decoding those load indicators corresponding to the non-serving sectors that operate in the same frequency bands as the terminal, and adjusting the transmission power according to the states of the decoded load indicators in conjunction with the associated non-serving sector forward link signal-to-interference and-noise ratio at the terminal. The states of the load indicators reflect magnitudes of interference metrics with respect to threshold values. Load indicators can also be conveyed by the non-serving sector to a base station (260) serving the terminal through a backhaul (250) communication, and said base station can schedule an adjusted transmission power for the terminal.

摘要翻译： 在无线通信系统中存在分数次频率重用的情况下，为单元间功率控制提供系统和方法。 终端（210）的传输功率控制; 并且随后进行小区间干扰减轻，是通过从非服务扇区（246i）接收负载指示符（230i）来完成的，解码对应于与终端在相同频带中工作的非服务扇区的那些负载指示符，并且调整 根据解码的负载指示符的状态结合在终端处的相关联的非服务扇区前向链路信号与干扰噪声比的发送功率。 负载指示器的状态反映相对于阈值的干扰度量的幅度。 负载指示符也可以由非服务扇区传送到通过回程（250）通信为终端服务的基站（260），并且所述基站可以为终端调度调整后的传输功率。

公开(公告)号：US20110103498A1

公开(公告)日：2011-05-05

申请号：US12764871

申请日：2010-04-21

申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

IPC分类号： H04L27/28

CPC分类号： H04L5/0044 ,  H04B7/0404 ,  H04B7/0689 ,  H04L1/007 ,  H04L1/06 ,  H04L1/1812 ,  H04L5/0053

摘要： Systems and methodologies are described herein that facilitate control and data multiplexing for uplink (UL) multiple-input-multiple-output (MIMO) communication within a wireless communication system. As described herein, a device conducting uplink MIMO communication in a wireless communication system can multiplex control signaling and data across one or more of a plurality of layers (e.g., corresponding to spatial layers, codewords, etc.) associated with an uplink transmission. Techniques are described herein for selecting layers of a transmission on which to schedule control signaling and selecting offsets to apply to the control signaling scheduled on selected layers. Further, techniques are described herein for leveraging a multi-layer transmission to increase the efficiency of acknowledgement communication. In addition, techniques are described for selecting a modulation and coding scheme (MCS) to apply to control signaling that is combined with data in an uplink multi-layer transmission.

摘要翻译： 本文描述了便于无线通信系统内的上行链路（UL）多输入多输出（MIMO）通信的控制和数据多路复用的系统和方法。 如本文所述，在无线通信系统中进行上行链路MIMO通信的设备可以跨越与上行链路传输相关联的多个层（例如，对应于空间层，码字等）中的一个或多个层来复用控制信令和数据。 这里描述了用于选择传输的层的技术，其中调度控制信令和选择偏移以应用于在所选择的层上调度的控制信令。 此外，本文描述了用于利用多层传输来提高确认通信的效率的技术。 此外，描述了用于选择适用于与上行链路多层传输中的数据组合的控制信令的调制和编码方案（MCS）的技术。

公开(公告)号：US09236985B2

公开(公告)日：2016-01-12

申请号：US12764871

申请日：2010-04-21

申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Juan Montojo ,  Durga Prasad Malladi

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04L1/06 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04L1/18

CPC分类号： H04L5/0044 ,  H04B7/0404 ,  H04B7/0689 ,  H04L1/007 ,  H04L1/06 ,  H04L1/1812 ,  H04L5/0053

摘要： Systems and methodologies are described herein that facilitate control and data multiplexing for uplink (UL) multiple-input-multiple-output (MIMO) communication within a wireless communication system. As described herein, a device conducting uplink MIMO communication in a wireless communication system can multiplex control signaling and data across one or more of a plurality of layers (e.g., corresponding to spatial layers, codewords, etc.) associated with an uplink transmission. Techniques are described herein for selecting layers of a transmission on which to schedule control signaling and selecting offsets to apply to the control signaling scheduled on selected layers. Further, techniques are described herein for leveraging a multi-layer transmission to increase the efficiency of acknowledgement communication. In addition, techniques are described for selecting a modulation and coding scheme (MCS) to apply to control signaling that is combined with data in an uplink multi-layer transmission.

摘要翻译： 本文描述了便于无线通信系统内的上行链路（UL）多输入多输出（MIMO）通信的控制和数据多路复用的系统和方法。 如本文所述，在无线通信系统中进行上行链路MIMO通信的设备可以跨越与上行链路传输相关联的多个层（例如，对应于空间层，码字等）中的一个或多个层来复用控制信令和数据。 这里描述了用于选择传输的层的技术，其中调度控制信令和选择偏移以应用于在所选择的层上调度的控制信令。 此外，本文描述了用于利用多层传输来提高确认通信的效率的技术。 此外，描述了用于选择适用于与上行链路多层传输中的数据组合的控制信令的调制和编码方案（MCS）的技术。