8-Alkyl and alkenyl-10-hydroxy-5H[1]benzopyranopyridine derivatives
having polyphagic activity
    93.
    发明授权
    8-Alkyl and alkenyl-10-hydroxy-5H[1]benzopyranopyridine derivatives having polyphagic activity 失效
    8-烷基和链烯基-10-羟基-5H- {具有多肽活性的{8 1 {9-苯并吡喃并吡啶衍生物

    公开(公告)号:US3962448A

    公开(公告)日:1976-06-08

    申请号:US570130

    申请日:1975-04-21

    IPC分类号: C07D491/04 A61K31/44

    CPC分类号: C07D491/04

    摘要: 8-Alkyl and alkenyl-10-hydroxy-5H[1]benzopyranopyridines are prepared by dehydrogenation of the corresponding N-benzyl or N-hydrogen-8-alkyl or alkenyl-1,2,3,4-tetrahydro-5H[1]benzopyranopyridines in a high boiling solvent in the presence of a noble metal dehydrogenation catalyst. Alkyl derivatives of 5-11 carbon atoms are particularly useful. Also the O-acetyl derivatives are very useful. The compounds are central nervous system depressants and animal polyphagic agents.

    摘要翻译: 8-烷基和链烯基-10-羟基-5H [1]苯并吡喃并吡啶通过相应的N-苄基或N-氢-8-烷基或链烯基-1,2,3,4-四氢-5H- [1] 苯并吡喃并吡啶在高沸点溶剂中,在贵金属脱氢催化剂存在下进行。 5-11个碳原子的烷基衍生物是特别有用的。 O-乙酰基衍生物也是非常有用的。 这些化合物是中枢神经系统抑制剂和动物多药剂。

    Systems and methods for key management for wireless communications systems
    94.
    发明授权
    Systems and methods for key management for wireless communications systems 有权
    无线通信系统密钥管理的系统和方法

    公开(公告)号:US08948395B2

    公开(公告)日:2015-02-03

    申请号:US11843583

    申请日:2007-08-22

    摘要: A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.

    摘要翻译: 提供了一种新颖的密钥管理方法,用于保证接入终端与两个接入点之间的通信切换。 这种方法提供了安全地切断接入终端和接入点之间的通信,而不会冒着接入终端的主密钥的风险。 派生临时主密钥用于低延迟切换和新接入点与接入终端之间的安全认证。 一方面,提供一种分配密钥管理方案,其中当前接入点生成由接入终端与之通信的下一个接入点使用的新的安全密钥(基于其自身的安全密钥)。 在另一方面,提供一种集中式密钥管理方案,其中中央认证器维护,生成和分发新的安全密钥(基于与接入终端相关联的主安全密钥)到接入点。

    Method and apparatus for canceling pilot interference in a wireless communication system
    95.
    发明授权
    Method and apparatus for canceling pilot interference in a wireless communication system 有权
    用于消除无线通信系统中的导频干扰的方法和装置

    公开(公告)号:US08644264B2

    公开(公告)日:2014-02-04

    申请号:US12900394

    申请日:2010-10-07

    IPC分类号: H03D1/04

    CPC分类号: H04B1/7107 H04B2201/70701

    摘要: Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.

    摘要翻译: 用于估计和消除无线(例如,CDMA)通信系统中的导频干扰的方法和系统。 在一种方法中,最初处理包括多个信号实例(每个包括导频)的接收信号以提供数据样本。 每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计,对解扩数据进行信道化以提供导频符号,对导频符号进行滤波以估计信号实例的信道响应,并将估计信道 响应与扩展序列。 由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰,其从数据样本中减去以提供导频取消的数据采样。 然后处理这些样本以便为接收信号中的至少一个(期望的)信号实例中的每一个导出解调数据。

    Method and apparatus for robust handoff in wireless communication systems
    96.
    发明授权
    Method and apparatus for robust handoff in wireless communication systems 有权
    无线通信系统中鲁棒切换的方法和装置

    公开(公告)号:US08588777B2

    公开(公告)日:2013-11-19

    申请号:US11619550

    申请日:2007-01-03

    IPC分类号: H04W36/00

    摘要: A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station is in communication with, referred to as an “Active Set”. In addition, the mobile station maintains another list of base stations that are proximate to the base stations in the active set. This list is referred to as the “Neighbor Set”. In accordance with the disclosed method and apparatus, the mobile station places a base station in the active set upon including the base station in a pilot strength measurement message (PSMM). The mobile station monitors transmissions from all of the base stations on the active set to receive a handoff direction message (HDM).

    摘要翻译: 即使在移动台已经接收到切换方向消息之前,即使当活动基站和移动台之间的通信链路恶化时,也能够完成软越区切换的通信系统。 移动台保持移动台与之通信的基站的列表,称为“活动集”。 此外,移动站维护在活动集合中靠近基站的另一个基站列表。 该列表被称为“邻居集”。 根据所公开的方法和装置,移动台在将基站包括在导频强度测量消息(PSMM)中时将基站放置在活动集中。 移动站监视来自主动集合上的所有基站的传输以接收切换方向消息(HDM)。

    Methods and apparatus for supporting tunneling related to wireless uplink signaling flows
    97.
    发明授权
    Methods and apparatus for supporting tunneling related to wireless uplink signaling flows 失效
    支持与无线上行信令流相关的隧道的方法和装置

    公开(公告)号:US08565216B2

    公开(公告)日:2013-10-22

    申请号:US11781934

    申请日:2007-07-23

    摘要: Methods and apparatus for communicating packets of information from an access terminal to a remote access node assembly by way of a serving access node assembly are described. An inter-route tunneling protocol module which interfaces with a radio link protocol module is used to tunnel route protocol packets. A first radio link protocol stream is associated with an application resident on the access terminal. A second radio link protocol stream is associated with an inter-route tunneling protocol module. Information to be communicated to a remote access node assembly by way of a serving access node assembly is subjected to two different radio link protocol processing operations. A first one of the RLP processing operations corresponds to the remote access node assembly while the second RLP processing operation corresponds to the serving access node assembly.

    摘要翻译: 描述了通过服务接入节点组件将信息分组从接入终端传送到远程接入节点组件的方法和装置。 与无线链路协议模块接口的路由间隧道协议模块用于隧道路由协议报文。 第一无线电链路协议流与驻留在接入终端上的应用相关联。 第二无线电链路协议流与路由间隧道协议模块相关联。 要通过服务接入节点组件传送到远程接入节点组件的信息经受两种不同的无线电链路协议处理操作。 RLP处理操作中的第一个对应于远程访问节点组件,而第二RLP处理操作对应于服务接入节点组件。