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    • 1. 发明授权
    • Method and communications system for ciphering information for a radio transmission and for authenticating subscribers
    • 用于加密无线电传输信息和用于认证用户的方法和通信系统
    • US07079656B1
    • 2006-07-18
    • US09581359
    • 1998-12-02
    • Christian MenzelRalf Haferbeck
    • Christian MenzelRalf Haferbeck
    • H04L9/00H04K1/00
    • H04W12/02H04W12/06
    • The subject matter of the invention proceeds from an encryption of the information for the radio transmission in an access network (ACN) as well as an authentication in at least one core network (CON1, CON2). Inventively, public keys (PUK1-MT, PUK-BS) are mutually transmitted between a mobile station (MT) and the base station (BS) via the radio interface (AI), and the public key (PUK1-MT or PUK-BS) received by the base station (BS) or mobile station (MT) is employed for the encryption of the information to be subsequently sent via the radio interface. On the basis of a private key (PRK1-MT, PRK1-BS) that is allocated to the transmitted, public key (PUK1-MT, PUK-BS) in the mobile station (MT) or in the base station (BS), the encrypted information received by the mobile station or base station can be deciphered. Following the encryption procedure, a subscriber identity mobile card (SIM) of the mobile station implements the authentication of the respective core network (CON1, CON2), and authentication equipment (AC, AC′) of the core network implements the authentication of the subscriber on the basis of the mutually transmitted, encrypted information.
    • 本发明的主题从对接入网络(ACN)中的无线电传输的信息的加密以及至少一个核心网络(CON 1,CON 2)中的认证进行。 本发明的公钥(PUK 1 -MT,PUK-BS)经由无线接口(AI)与移动台(MT)和基站(BS)之间相互发送,而公钥(PUK 1 -MT或PUK -BS)由基站(BS)或移动台(MT)接收的信息用于通过无线电接口随后发送的信息的加密。 基于分配给移动站(MT)或基站(MTK)中的所发送的公开密钥(PUK 1 -MT,PUK-BS)的私钥(PRK 1 -MT,PRK 1 -BS) BS),可以解密由移动台或基站接收到的加密信息。 在加密过程之后,移动台的用户身份移动卡(SIM)实现各自的核心网(CON1,CON2)的认证,核心网的认证设备(AC,AC')实现认证 基于相互发送的加密信息的用户。
    • 5. 发明授权
    • Reception time of messages in access channels of TDMA mobile communication system controlled by transmitting device
    • 由发送设备控制的TDMA移动通信系统的接入信道中的消息的接收时间
    • US06707807B1
    • 2004-03-16
    • US09446059
    • 1999-12-16
    • Christian Menzel
    • Christian Menzel
    • H04J300
    • H04W56/0085H04W92/10
    • In methods for signal transmission, a first radio burst is inventively transmitted in a time slot of the radio interface, in which a transmission-side synchronization of the transmission of the first radio burst occurs, so that the first radio burst arrives at the receiving radio station at a predetermined point in time within the time slot. At least one second radio burst that can be interpreted separately from the first radio burst is transmitted in the same time slot. The invention can be utilized for designing the access method (random access) in packet data services (GPRS) of the GSM mobile radio telephone system or in a TDD transmission mode of the third mobile radio telephone generation. This method may also be used to transmit many very short messages.
    • 在信号传输方法中,在无线接口的时隙中发明地发送第一无线电突发,其中发生第一无线电突发的发送的发送侧同步,使得第一无线电突发到达接收无线电 在时隙内的预定时间点。 可以在相同的时隙中发送可以与第一无线电突发分开解释的至少一个第二无线电突发。 本发明可用于设计GSM移动无线电话系统的分组数据业务(GPRS)或第三移动无线电话生成的TDD传输模式中的接入方法(随机接入)。 该方法也可用于传送许多非常短的消息。
    • 6. 发明授权
    • Method and installation for executing a handover in mobile data transmission systems using data duplication
    • 用于在使用数据复制的移动数据传输系统中执行切换的方法和装置
    • US07197019B2
    • 2007-03-27
    • US10344106
    • 2001-08-07
    • Christian MenzelJean-Michel Traynard
    • Christian MenzelJean-Michel Traynard
    • H04Q7/00
    • H04W36/12H04W36/18
    • A method establishes a connection between a source network with a source network resource manager and a target network with a target network resource manager. According to the method, a connection control unit of the source network transmits a connection establishment signal to a connection control unit of the target network and—parallel to this—a reservation request to the target network resource manager. The target network resource reserves the requested resources and forwards the reservation request towards the target network resource manager, which also reserves the requested resources and transmits reservation information regarding the success of the resource reservations to the connection control unit of the target network.
    • 一种方法建立源网络与源网络资源管理器和目标网络与目标网络资源管理器之间的连接。 根据该方法,源网络的连接控制单元向目标网络的连接控制单元发送连接建立信号,并且将该预约请求与该目标网络资源管理器并行。 目标网络资源保留所请求的资源,并将预留请求转发给目标网络资源管理器,目标网络资源管理器还预留所请求的资源,并将关于资源预留成功的预约信息发送到目标网络的连接控制单元。
    • 9. 发明授权
    • Method and system for data transmission with a macrodiversity reception
    • 用于数据传输的方法和系统,具有宏分集接收
    • US06504837B1
    • 2003-01-07
    • US09465281
    • 1999-12-16
    • Christian Menzel
    • Christian Menzel
    • H04L1228
    • H04B7/022
    • In a method for transmitting data via a radio interface between base stations and subscriber stations in a radio communications system, the time slots in a frame are allocated to different base stations such that the base stations transmit exclusively in the time slots in the downlink direction which are allocated to them, but also receive in those time slots in the uplink direction which are not allocated to them. It is thus possible to combine the received signals from at least two base stations with one another. Without any significant additional complexity, the existing base stations, which are on standby during some time slots, can be used to provide a macrodiversity reception. The transmission quality is improved by the plurality of propagation paths which are evaluated in the uplink direction. A radio communications system is also provided.
    • 在无线电通信系统中通过基站和用户台之间的无线电接口发送数据的方法中,将帧中的时隙分配给不同的基站,使得基站在下行链路方向上的时隙中专门发送, 分配给它们,而且还在上行方向的那些时隙中接收未分配给它们的时隙。 因此,可以将来自至少两个基站的接收信号彼此组合。 没有任何显着的附加复杂性,在某些时隙期间待机的现有基站可用于提供宏分集接收。 通过在上行方向上评估的多个传播路径来提高传输质​​量。 还提供无线电通信系统。