Apparatus and method for deciding on vertical handoff
    34.
    发明授权
    Apparatus and method for deciding on vertical handoff 有权
    用于决定垂直切换的装置和方法

    公开(公告)号:US07773563B2

    公开(公告)日:2010-08-10

    申请号:US11451881

    申请日:2006-06-12

    IPC分类号: H04W4/00

    CPC分类号: H04W36/26 H04W36/14 H04W36/38

    摘要: An apparatus and method for determining a vertical handoff for a node supporting a WLAN and an IEEE 802.16 communication system are provided. Reception of a handoff request message from the node is monitored, an expected change in the total throughput of the WLAN in the case where the node is connected to the WLAN is calculated and compared with zero, and if the throughput change is equal to or greater than zero, the handoff request of the node is acknowledged and the node is handed off to the WLAN.

    摘要翻译: 提供了一种用于确定支持WLAN和IEEE 802.16通信系统的节点的垂直切换的装置和方法。 监视来自节点的切换请求消息的接收,计算节点连接到WLAN的情况下的WLAN的总吞吐量的预期变化并与0进行比较,并且如果吞吐量变化等于或等于 超过零,节点的切换请求被确认,节点被切换到WLAN。

    STFBC CODING/DECODING APPARATUS AND METHOD IN AN OFDM MOBILE COMMUNICATION SYSTEM
    38.
    发明申请
    STFBC CODING/DECODING APPARATUS AND METHOD IN AN OFDM MOBILE COMMUNICATION SYSTEM 有权
    STFBC编码/解码装置和方法在OFDM移动通信系统中

    公开(公告)号:US20080095039A1

    公开(公告)日:2008-04-24

    申请号:US11873251

    申请日:2007-10-16

    IPC分类号: H04J11/00 H04L27/28

    CPC分类号: H04L27/2607 H04L1/0618

    摘要: A mobile communication system for modulating input data with a specific size into an OFDM (Orthogonal Frequency Division Multiplexing) symbol and transmitting the OFDM symbol through at least two different antennas. A replica generator generates replica data by cyclically-circulating the input data. An encoder generates a first antenna signal and a second antenna signal by encoding the input data and the replica data. A first IFFT (Inverse Fast Fourier Transform) block generates a first OFDM symbol by performing IFFT on the first antenna signal, and a second IFFT block generates a second OFDM symbol by performing IFFT on the second antenna signal. A first antenna transmits the first OFDM symbol, and a second antenna transmits the second OFDM symbol.

    摘要翻译: 一种用于将具有特定尺寸的输入数据调制成OFDM(正交频分复用)符号并通过至少两个不同天线发送OFDM符号的移动通信系统。 复制生成器通过循环输入数据来生成副本数据。 编码器通过对输入数据和副本数据进行编码来生成第一天线信号和第二天线信号。 第一IFFT(快速傅里叶逆变换)块通过对第一天线信号执行IFFT产生第一OFDM符号,并且第二IFFT块通过对第二天线信号执行IFFT来产生第二OFDM符号。 第一天线发送第一OFDM符号,第二天线发送第二OFDM符号。