Support of physical layer security in wireless local area networks
    21.
    发明授权
    Support of physical layer security in wireless local area networks 有权
    支持无线局域网中的物理层安全

    公开(公告)号:US08433894B2

    公开(公告)日:2013-04-30

    申请号:US12499530

    申请日:2009-07-08

    IPC分类号: H04L29/06

    摘要: 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.

    摘要翻译: 公开了一种用于执行物理层安全操作的方法和装置。 物理层连续执行测量,并将测量结果报告给介质访问控制(MAC)层。 MAC层处理测量,并且在基于测量检测到异常状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实施对抗措施。 测量包括信道脉冲响应(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/或短前同步码匹配滤波器输出。 在接收到安全警报时,安全管理器可以切换信道,切换信道跳频策略,改变退避协议或改变波束成形向量。

    METHOD AND APPARATUS FOR PERFORMING JRNSO IN FDD, TDD AND MIMO COMMUNICATIONS
    22.
    发明申请
    METHOD AND APPARATUS FOR PERFORMING JRNSO IN FDD, TDD AND MIMO COMMUNICATIONS 有权
    在FDD,TDD和MIMO通信中执行JRNSO的方法和装置

    公开(公告)号:US20080259825A1

    公开(公告)日:2008-10-23

    申请号:US12106926

    申请日:2008-04-21

    摘要: A method and apparatus for performing Joint Randomness Not Shared by Others (JRNSO) is disclosed. In one embodiment, JRNSO is determined in Frequency Division Duplex (FDD) using a baseband signal loop back and private pilots. In another embodiment, JRNSO is determined in Time Division Duplex (TDD) using a baseband signal loop back and combinations of private pilots, private gain functions and Kalman filtering directional processing. In one example, the FDD and TDD JRSNO embodiments are performed in Single-Input-Single-Output (SISO) and Single-Input-Multiple-Output (SIMO) communications. In other examples, the FDD and TDD embodiments are performed in Multiple-Input-Multiple-Output (MIMO) and Multiple-Input-Single-Output (MISO) communications. JRNSO is determined by reducing MIMO and MISO communications to SISO or SIMO communications. JRNSO is also determined using determinants of MIMO channel products. Channel restrictions are removed by exploiting symmetric properties of matrix products.

    摘要翻译: 公开了一种用于执行其他人未共享的联合随机(JRNSO)的方法和装置。 在一个实施例中,使用基带信号回送和专用导频在频分双工(FDD)中确定JRNSO。 在另一个实施例中,使用基带信号回路和专用导频,私有增益函数和卡尔曼滤波定向处理的组合,在时分双工(TDD)中确定JRNSO。 在一个示例中,FDD和TDD JRSNO实施例在单输入单输出(SISO)和单输入多输出(SIMO)通信中执行。 在其他示例中,FDD和TDD实施例在多输入多输出(MIMO)和多输入 - 单输出(MISO)通信中执行。 通过将MIMO和MISO通信减少到SISO或SIMO通信来确定JRNSO。 还使用MIMO信道产品的决定因素来确定JRNSO。 通过利用矩阵产品的对称性来消除通道限制。

    Method and apparatus for performing JRNSO in FDD, TDD and MIMO communications
    23.
    发明授权
    Method and apparatus for performing JRNSO in FDD, TDD and MIMO communications 有权
    在FDD,TDD和MIMO通信中执行JRNSO的方法和装置

    公开(公告)号:US08401196B2

    公开(公告)日:2013-03-19

    申请号:US12106926

    申请日:2008-04-21

    摘要: A method and apparatus for performing Joint Randomness Not Shared by Others (JRNSO) is disclosed. In one embodiment, JRNSO is determined in Frequency Division Duplex (FDD) using a baseband signal loop back and private pilots. In another embodiment, JRNSO is determined in Time Division Duplex (TDD) using a baseband signal loop back and combinations of private pilots, private gain functions and Kalman filtering directional processing. In one example, the FDD and TDD JRSNO embodiments are performed in Single-Input-Single-Output (SISO) and Single-Input-Multiple-Output (SIMO) communications. In other examples, the FDD and TDD embodiments are performed in Multiple-Input-Multiple-Output (MIMO) and Multiple-Input-Single-Output (MISO) communications. JRNSO is determined by reducing MIMO and MISO communications to SISO or SIMO communications. JRNSO is also determined using determinants of MIMO channel products. Channel restrictions are removed by exploiting symmetric properties of matrix products.

    摘要翻译: 公开了一种用于执行其他人未共享的联合随机(JRNSO)的方法和装置。 在一个实施例中,使用基带信号回送和专用导频在频分双工(FDD)中确定JRNSO。 在另一个实施例中,使用基带信号回路和专用导频,私有增益函数和卡尔曼滤波定向处理的组合,在时分双工(TDD)中确定JRNSO。 在一个示例中,FDD和TDD JRSNO实施例在单输入单输出(SISO)和单输入多输出(SIMO)通信中执行。 在其他示例中,FDD和TDD实施例在多输入多输出(MIMO)和多输入 - 单输出(MISO)通信中执行。 通过将MIMO和MISO通信减少到SISO或SIMO通信来确定JRNSO。 还使用MIMO信道产品的决定因素来确定JRNSO。 通过利用矩阵产品的对称性来消除通道限制。

    Network coding relay operations
    24.
    发明授权
    Network coding relay operations 有权
    网络编码中继操作

    公开(公告)号:US08737297B2

    公开(公告)日:2014-05-27

    申请号:US12708947

    申请日:2010-02-19

    IPC分类号: H04W4/00 H04B7/155 H04L1/00

    摘要: A method for network coding of packets between End Nodes (ENs) and a Relay Node (RN) in wireless communications can be performed at the RN. This method may include: receiving a new packet at the RN from one of the ENs; determining the source node of the new packet at the RN; providing a buffer for each EN; determining whether the buffer associated with the EN that is not the source of the new packet (non-source buffer) has the new packet buffered and based upon such determination, either: (1) storing the new packet in the EN buffer that is the source of the new packet on a condition that the non-source buffer is empty; or (2) network coding the new packet with an existing packet in the non-source buffer.

    摘要翻译: 可以在RN处执行用于在无线通信中的终端(EN)和中继节点(RN)之间的分组的网络编码的方法。 该方法可以包括:在RN处从EN之一接收新分组; 确定RN处的新分组的源节点; 为每个EN提供一个缓冲区; 确定与不是新分组(非源缓冲器)的源的EN相关联的缓冲器是否具有缓冲的新分组并且基于这样的确定:(1)将新分组存储在EN缓冲器中 在非源缓冲区为空的条件下,新数据包的源; 或(2)使用非源缓冲区中的现有数据包对新数据包进行网络编码。

    Method and system for generating a secret key from joint randomness
    26.
    发明授权
    Method and system for generating a secret key from joint randomness 有权
    从联合随机产生秘密密钥的方法和系统

    公开(公告)号:US08090101B2

    公开(公告)日:2012-01-03

    申请号:US11612671

    申请日:2006-12-19

    IPC分类号: H04L9/00

    摘要: A method and system for generating a secret key from joint randomness shared by wireless transmit/receive units (WTRUs) are disclosed. A first WTRU and a second WTRU perform channel estimation to generate a sampled channel impulse response (CIR) on a channel between the first WTRU and the second WTRU. The first WTRU generates a set of bits from the sampled CIR and generates a secret key and a syndrome, (or parity bits), from the set of bits. The first WTRU sends the syndrome, (or parity bits), to the second WTRU. The second WTRU reconstructs the set of bits from the syndrome, (or parity bits), and its own sampled CIR, and generates the secret key from the reconstructed set of bits.

    摘要翻译: 公开了一种由无线发射/接收单元(WTRU)共享的联合随机生成秘密密钥的方法和系统。 第一WTRU和第二WTRU执行信道估计,以在第一WTRU和第二WTRU之间的信道上生成采样信道脉冲响应(CIR)。 第一WTRU从采样的CIR生成一组比特,并从该比特组生成秘密密钥和校正子(或奇偶校验位)。 第一WTRU将该校验子(或奇偶校验位)发送到第二WTRU。 第二WTRU从校验子(或奇偶校验位)重构比特组,并且自己采样CIR,并从重构的比特组生成秘密密钥。

    Method and system for securing wireless communications
    27.
    发明授权
    Method and system for securing wireless communications 有权
    用于确保无线通信的方法和系统

    公开(公告)号:US07991160B2

    公开(公告)日:2011-08-02

    申请号:US11736830

    申请日:2007-04-18

    IPC分类号: H04K1/00

    摘要: A wireless transmit/receive unit (WTRU) and a Node B, respectively, perform joint randomness not shared by others (JRNSO) measurement to generate JRNSO bits based on a channel estimate between the WTRU and the Node B. The WTRU and the Node B then perform a reconciliation procedure to generate a common JRNSO bits. The Node B sends the common JRNSO bits to a serving network. The WTRU and the SN secure a session key (such as an integrity key, a cipher key and an anonymity key), using the common JRNSO bits. The JRNSO measurements are performed on an on-going basis, and the session key is updated using a new set of common JRNSO bits. The JRNSO bits may be expanded by using a pseudorandom number generator (PNG) or a windowing technique. A handover may be intentionally induced to increase the JRNSO bits generation rate.

    摘要翻译: 无线发送/接收单元(WTRU)和节点B分别基于WTRU和节点B之间的信道估计来执行其他人不共享的联合随机(JRNSO)测量以生成JRNSO比特。WTRU和节点B 然后执行协调过程以生成一个常见的JRNSO位。 节点B将公共JRNSO比特发送到服务网络。 WTRU和SN使用公共JRNSO比特来保护会话密钥(诸如完整性密钥,加密密钥和匿名密钥)。 JRNSO测量是在持续的基础上执行的,会话密钥使用一组常见的JRNSO位进行更新。 可以通过使用伪随机数生成器(PNG)或开窗技术来扩展JRNSO比特。 可以有意地引起切换以增加JRNSO比特生成速率。