Handover method in a wireless communication system
    2.
    发明申请
    Handover method in a wireless communication system 审中-公开
    无线通信系统中的切换方法

    公开(公告)号:US20080108326A1

    公开(公告)日:2008-05-08

    申请号:US11983104

    申请日:2007-11-07

    IPC分类号: H04M1/66 H04Q7/22

    CPC分类号: H04W36/0055 H04W16/26

    摘要: A handover method in a wireless communication system is provided, in which upon receipt of a handover request message requesting a handover from a mobile station, a serving base station transmits a handover notify message to a target base station indicated by the handover request message, receives a handover notify ACK message from the target base station, determines from the handover notify ACK message whether the target base station has accepted the handover of the mobile station, generates a handover response message indicating whether the handover of the mobile station has been accepted, transmits the handover response message to the mobile station, and terminates communications with the mobile station, upon receipt of a handover complete message from the target base station.

    摘要翻译: 提供了一种在无线通信系统中的切换方法,其中,在接收到从移动台请求切换的切换请求消息时,服务基站向切换请求消息指示的目标基站发送切换通知消息,接收 来自目标基站的切换通知ACK消息,从切换通知ACK消息确定目标基站是否已经接受移动台的切换,生成指示移动台的切换是否已被接受的切换响应消息,发送 切换响应消息发送到移动站,并且在从目标基站接收到切换完成消息时终止与移动站的通信。

    Authentication method in communication system
    3.
    发明申请
    Authentication method in communication system 有权
    通信系统中的认证方式

    公开(公告)号:US20090041250A1

    公开(公告)日:2009-02-12

    申请号:US12221866

    申请日:2008-08-07

    IPC分类号: H04L9/14 H04M1/66

    摘要: An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.

    摘要翻译: 提供了一种认证方法,其中第一便携式设备在第一便携式设备中生成并向第一USIM发送第一随机数和第一时间戳; 第一USIM计算第一便携式设备的第一符号; 第一便携式设备通过将第一随机数,第一时间戳和第一符号发送到第二便携式设备来请求来自第二便携式设备的认证通信的认证; 第二便携式设备生成第二随机数和第二时间戳,并将该信息发送到第二便携式设备中的第二USIM; 第二USIM生成用于第二便携式设备的第二符号和第二便携式设备向第一便携式设备发送的第二个人密钥; 第一便携式设备然后将信息发送到生成用于认证通信的第一个人密钥的第一USIM。

    Authentication method in communication system
    4.
    发明授权
    Authentication method in communication system 有权
    通信系统中的认证方式

    公开(公告)号:US08243928B2

    公开(公告)日:2012-08-14

    申请号:US12221866

    申请日:2008-08-07

    IPC分类号: H04K1/00

    摘要: An authentication method is provided in which a first portable device generates and transmits a first random number and a first timestamp to a first USIM in the first portable device; the first USIM calculates a first sign for the first portable device; the first portable device requests authentication for authenticated communication from a second portable device through transmission of the first random number, the first timestamp, and the first sign to the second portable device; the second portable device generates a second random number and a second timestamp and transmits the information to a second USIM in the second portable device; the second USIM generates a second sign for the second portable device and a second personal key which the second portable device transmits to the first portable device; the first portable device then transmits the information to the first USIM which generates a first personal key for authenticated communication.

    摘要翻译: 提供了一种认证方法,其中第一便携式设备在第一便携式设备中生成并向第一USIM发送第一随机数和第一时间戳; 第一USIM计算第一便携式设备的第一符号; 第一便携式设备通过将第一随机数,第一时间戳和第一符号发送到第二便携式设备来请求来自第二便携式设备的认证通信的认证; 第二便携式设备生成第二随机数和第二时间戳,并将该信息发送到第二便携式设备中的第二USIM; 第二USIM生成用于第二便携式设备的第二符号和第二便携式设备向第一便携式设备发送的第二个人密钥; 第一便携式设备然后将信息发送到生成用于认证通信的第一个人密钥的第一USIM。

    Method for detecting and decoding a signal in a MIMO communication system
    5.
    发明申请
    Method for detecting and decoding a signal in a MIMO communication system 审中-公开
    用于在MIMO通信系统中检测和解码信号的方法

    公开(公告)号:US20060215781A1

    公开(公告)日:2006-09-28

    申请号:US11386490

    申请日:2006-03-22

    IPC分类号: H04L1/02 H04B7/02

    摘要: A method for detecting and decoding a signal in a communication system based on Multiple-Input Multiple-Output (MIMO)-Orthogonal Frequency Division Multiplexing (OFDM). A signal is received through multiple receive antennas. A decision error occurring at a symbol decision time is considered and a symbol is detected from transmitted symbols. Original data transmitted from the detected symbol is recovered. The performance of a coded bit system can be significantly improved using a new equalization matrix G considering a decision error.

    摘要翻译: 一种用于在基于多输入多输出(MIMO) - 正交频分复用(OFDM)的通信系统中检测和解码信号的方法。 通过多个接收天线接收信号。 考虑在符号决定时间发生的判定错误,并且从发送的符号检测符号。 从检测到的符号发送的原始数据被恢复。 考虑到决策误差,使用新的均衡矩阵G可以显着改善编码比特系统的性能。