会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明授权
    • Apparatus and method for multiuser detection in CDMA communication system
    • CDMA通信系统中多用户检测的装置和方法
    • US07787532B2
    • 2010-08-31
    • US11482801
    • 2006-07-10
    • Kathiravetpillai SivanesanMarcos Daniel KatzChan-Byoung Chae
    • Kathiravetpillai SivanesanMarcos Daniel KatzChan-Byoung Chae
    • H03H7/40H03K5/159
    • H04B1/71055H04B1/7093
    • An apparatus and method for a multiuser receiver in a CDMA communication system are provided. The apparatus includes a plurality of White Matched Filters (WMFs) for pulse shaping received user signals, considering Multiple Access Interference (MAI), and a filter for detecting output signals of the WMFs using a Minimum Mean Square Error (MMSE) scheme, and outputting bit estimation values of the respective users. A transfer function of the WMF is determined by: adding a power spectral density function of the MAI to a power spectral density of an Additive White Gaussian Noise (AWGN); and multiplying an inverse number of the added value by a transfer function (H*(w)) of a Conventional Matched Filter (CMF). Accordingly, the SNIR can be maximized and thus the BER performance may be improved, without additional information, by using the filter in which the power spectral density of the MAI is added to the AWGN and then multiplied by the CMF function.
    • 提供了一种用于CDMA通信系统中的多用户接收机的装置和方法。 该装置包括多个白色匹配滤波器(WMF),用于考虑多址干扰(MAI)的接收用户信号的脉冲整形,以及用于使用最小均方误差(MMSE)方案检测WMF的输出信号的滤波器,并输出 各个用户的位估计值。 通过以下方式确定WMF的传递函数:将MAI的功率谱密度函数加到加性白高斯噪声(AWGN)的功率谱密度; 并将相加值的倒数乘以常规匹配滤波器(CMF)的传递函数(H *(w))。 因此,通过使用其中将MAI的功率谱密度添加到AWGN然后乘以CMF功能的滤波器,可以使SNIR最大化,从而可以提高BER性能,而无需附加信息。
    • 36. 发明申请
    • METHOD AND APPARATUS FOR RESOURCE ALLOCATION FOR DEVICE-TO-DEVICE COMMUNICATION
    • 用于设备到设备通信的资源分配的方法和装置
    • US20130322345A1
    • 2013-12-05
    • US13484863
    • 2012-05-31
    • Subramanian VasudevanKathiravetpillai Sivanesan
    • Subramanian VasudevanKathiravetpillai Sivanesan
    • H04W72/04
    • H04W72/04H04W8/005H04W28/18
    • In one embodiment, the method of allocating network resources by a base station of a network includes allocating at least two blocks of an uplink channel of the network to a direct communication link between a first user equipment (UE) and a second UE. The method further includes determining that a rate of data transfer on the direct communication link is greater than a rate of data transfer for uplink communications between one of (i) the first UE and base station and (ii) the second UE and the base station. The method further includes re-allocating, based on the determining, at least one of the at least two uplink blocks allocated to the direct communication link to at least one of uplink communications by the first UE, the second UE, or other UEs with the base station.
    • 在一个实施例中,由网络的基站分配网络资源的方法包括:将网络的上行链路信道的至少两个块分配到第一用户设备(UE)和第二UE之间的直接通信链路。 该方法还包括确定直接通信链路上的数据传输速率大于(i)第一UE与基站之间的上行链路通信的数据传输速率,以及(ii)第二UE和基站 。 该方法还包括:基于确定分配给直接通信链路的至少两个上行链路块中的至少一个至少由第一UE,第二UE或具有第一UE的上行链路通信中的至少一个重新分配 基站。