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    • 5. 发明申请
    • ENHANCED SECURITY FOR DIRECT LINK COMMUNICATIONS
    • 增强了直接链接通信的安全性
    • WO2010077910A3
    • 2010-12-02
    • PCT/US2009068177
    • 2009-12-16
    • INTERDIGITAL PATENT HOLDINGSREZNIK ALEXANDERSHAH YOGENDRA C
    • REZNIK ALEXANDERSHAH YOGENDRA C
    • H04W12/04H04L29/06
    • H04W12/04H04L9/0822H04L9/0841H04L9/321H04L63/162H04L2209/80H04W12/08H04W76/023
    • A method for secure direct link communications between multiple wireless transmit/receive units (WTRUs). The WTRUs exchange nonces that are used for generating a common nonce. A group identification information element (GIIE) is generated from at least the common nonce and is forwarded to an authentication server. The authentication server generates a group direct link master key (GDLMK) from the GIIE to match WTRUs as part of a key agreement group. Group key encryption key (GKEK) and a group key confirmation key (GKCK) are also generated based on the common nonce and are used to encrypt and sign the GDLMK so that base stations do not have access to the GDLMK. Also disclosed is a method for selecting a key management suite (KMS) to generate temporal keys. A KMS index (KMSI) may be set according to a selected KMS, transmitted to another WTRU and used to establish a direct link.
    • 一种用于多个无线发射/接收单元(WTRU)之间的安全直接链路通信的方法。 WTRU交换用于生成通用随机数的随机数。 组标识信息元素(GIIE)至少从公共随机数生成并被转发到认证服务器。 认证服务器从GIIE生成组直接链路主密钥(GDLMK),以作为密钥协议组的一部分匹配WTRU。 组密钥加密密钥(GKEK)和组密钥确认密钥(GKCK)也是基于公共nonce生成的,用于对GDLMK进行加密和签名,以便基站无法访问GDLMK。 还公开了一种用于选择密钥管理套件(KMS)以生成临时密钥的方法。 KMS索引(KMSI)可以根据选择的KMS来设置,发送给另一个WTRU并用于建立直接链接。
    • 6. 发明申请
    • SUPPORT OF PHYSICAL LAYER SECURITY IN WIRELESS LOCAL AREA NETWORKS
    • 支持无线局域网中的物理层安全
    • WO2010006035A3
    • 2010-03-04
    • PCT/US2009049917
    • 2009-07-08
    • INTERDIGITAL PATENT HOLDINGSREZNIK ALEXANDERLEVY JOSEPH SSHAH YOGENDRA CMATHUR SUHAS
    • REZNIK ALEXANDERLEVY JOSEPH SSHAH YOGENDRA CMATHUR SUHAS
    • H04W12/12H04L29/06
    • H04W12/12H04L63/1408H04L63/16H04W24/10H04W84/12
    • A method and an apparatus for performing physical layer security operation are disclosed. A physical layer performs measurements continuously, and reports the measurements to a medium access control (MAC) layer. The MAC layer processes the measurements, and sends a security alert to a security manager upon detection of an abnormal condition based on the measurements. The security manager implements a counter-measure upon receipt of the security alert. The measurements include channel impulse response (CIR), physical medium power measurement, automatic gain control (AGC) value and status, automatic frequency control (AFC) gain and status, analog-to-digital converter (ADC) gain, Doppler spread estimate, and/or short preamble matched filter output. The security manager may switch a channel, switch a channel hopping policy, change a back-off protocol, or change a beamforming vector upon reception of the security alert.
    • 公开了一种用于执行物理层安全操作的方法和设备。 物理层连续执行测量,并将测量结果报告给媒体访问控制(MAC)层。 MAC层处理测量结果,并在基于测量结果检测到异常情况时向安全管理器发送安全警报。 安全管理员在收到安全警报后执行反措施。 测量包括信道冲击响应(CIR),物理介质功率测量,自动增益控制(AGC)值和状态,自动频率控制(AFC)增益和状态,模数转换器(ADC)增益,多普勒扩展估计, 和/或短前导匹配滤波器输出。 安全管理器可以在接收到安全警报时切换信道,切换信道跳跃策略,改变退避协议或改变波束形成向量。