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：US20050105594A1

公开(公告)日：2005-05-19

申请号：US10952713

申请日：2004-09-29

申请人： Georgios Giannakis ,  Liuqing Yang ,  Xiliang Luo

发明人： Georgios Giannakis ,  Liuqing Yang ,  Xiliang Luo

IPC分类号： H04B1/69 ,  H04B1/713 ,  H04B1/707

CPC分类号： H04B1/7172 ,  H04B1/713 ,  H04B1/7174 ,  H04B1/719

摘要： The invention provides an ultra-wideband (UWB) transmitter and various techniques for generating digitally filtered UWB pulses that substantially maximize power and bandwidth in one or more frequency bands while allowing narrow-band interference (NBI) to be avoided, e.g. interference to and from wireless local area networks (WLANs). In particular, the UWB transmitter utilizes a digital filter to generate digitally filtered UWB pulses to substantially maximize power and bandwidth in the Federal Communications Commission (FCC) spectral mask for UWB communications. In one embodiment, the invention provides a method comprising generating digitally filtered ultra-wide band (UWB) pulses to substantially maximize power in one or more frequency bands of a UWB spectrum and to substantially reduce power in one or more NBI frequency bands of the UWB spectrum. The invention may be implemented without modifying the analog components of existing UWB transmitters.

摘要翻译： 本发明提供了一种超宽带（UWB）发射机和用于产生数字滤波的UWB脉冲的各种技术，其基本上使一个或多个频带中的功率和带宽最大化地最大化，同时允许避免窄带干扰（NBI）。 无线局域网（WLAN）的干扰。 特别地，UWB发射机利用数字滤波器来生成数字滤波的UWB脉冲，以在联邦通信委员会（FCC）频谱掩模中大幅度地最大化功率和带宽用于UWB通信。 在一个实施例中，本发明提供了一种方法，包括生成经数字滤波的超宽带（UWB）脉冲以使UWB频谱的一个或多个频带中的功率基本上最大化，并且在UWB的一个或多个NBI频带中基本上降低功率 光谱。 可以在不修改现有UWB发射机的模拟部件的情况下实现本发明。