利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

169 条记录 (耗时 0.036 秒)

    Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network
    41.
    发明授权
    Method and apparatus for requesting point-to-point protocol (PPP) instances from a packet data services network 有权
    用于从分组数据服务网络请求点对点协议（PPP）实例的方法和装置

    公开(公告)号：US07773547B2

    公开(公告)日：2010-08-10

    申请号：US11404328

    申请日：2006-04-12

    申请人： Raymond Tah-Sheng Hsu ,  Ramin Rezaiifar

    发明人： Raymond Tah-Sheng Hsu ,  Ramin Rezaiifar

    IPC分类号： H04B7/00 ,  H04W4/00 ,  H04W36/00

    CPC分类号： H04W8/00 ,  H04W36/10 ,  H04W36/12 ,  H04W36/14 ,  H04W36/28 ,  H04W76/22 ,  H04W92/24

    摘要： A method and apparatus for requesting PPP instances from a packet data services network includes a mobile station configured to send an origination message to a packet data service node (PDSN) at which it has arrived upon leaving the vicinity of another PDSN. The message informs the new PDSN of the new location of the mobile station and indicates both the number of dormant PPP instances associated with the mobile station and a service reference identifier for each such PPP instance. A flag within the message may be used to indicate whether the PPP instances are dormant (i.e., whether the mobile station is engaged in a call).

    摘要翻译： 一种用于从分组数据业务网络请求PPP实例的方法和装置，包括：移动台，被配置为向离开另一个PDSN附近的分组数据业务节点（PDSN）发送发起消息。 该消息通知新的PDSN移动站的新位置，并指示与移动站相关联的休眠PPP实例的数量和每个这样的PPP实例的服务参考标识。 消息内的标志可以用于指示PPP实例是否处于休眠状态（即移动台是否进行呼叫）。

    Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames
    42.
    发明授权
    Method and apparatus for resolving ambiguity in reception of multiple retransmitted frames 有权

    公开(公告)号：US07593408B2

    公开(公告)日：2009-09-22

    申请号：US11406741

    申请日：2006-04-18

    申请人： Ramin Rezaiifar ,  Nikolai K. N. Leung

    发明人： Ramin Rezaiifar ,  Nikolai K. N. Leung

    IPC分类号： H04L12/56

    CPC分类号： H04L47/10 ,  H04L1/1841 ,  H04L47/14 ,  H04L47/17 ,  H04L47/34

    摘要： A method and apparatus for resolving ambiguity in reception of multiple retransmitted frames includes ascertaining for each data frame received from a transmitter whether the frame is a retransmitted frame. If the frame is a retransmitted frame, the frame may be stored in a resequencing buffer. If an abort timer associated with the second round of retransmission has been set for the retransmitted frame, an associated negative-acknowledgment-list (NAK-list) entry is not removed from a NAK list until the abort timer has expired. If the abort timer has not been set for the retransmitted frame, the associated NAK-list entry is removed from the NAK list. The method and apparatus may reside in a transport function in which a transmitter sends data frames to a receiver in accordance with the Radio Link Protocol interface. The transport function may reside in, e.g., a data-capable cellular or satellite-based base station and subscriber unit.

    Method and Apparatus for Determining Coverage and Switching Between Overlay Communication Systems
    43.
    发明申请
    Method and Apparatus for Determining Coverage and Switching Between Overlay Communication Systems 审中-公开
    确定叠加通信系统覆盖和切换的方法和装置

    公开(公告)号：US20090163209A1

    公开(公告)日：2009-06-25

    申请号：US12249726

    申请日：2008-10-10

    申请人： Peter J. Black ,  Ramin Rezaiifar ,  Thunyachate Ekvetchavit

    发明人： Peter J. Black ,  Ramin Rezaiifar ,  Thunyachate Ekvetchavit

    IPC分类号： H04W36/00

    CPC分类号： H04W36/30 ,  H04W36/14

    摘要： Techniques to determine whether or not a terminal is under the coverage of a current wireless communication system (e.g., a packet data system) and to switch from the current system to another wireless communication system (e.g., a voice/data system). In one method, at least one measurement of at least one parameter for at least one base station in the current system is initially obtained. The measurement(s) may be SNR measurements. A metric is derived based on the measurement(s) and used (typically along with a metric threshold and a timer) to determine whether or not the terminal is within the coverage of the current system. A switch to another system is initiated if the terminal is deemed to be outside the coverage of the current system. The two systems provide at least one common service (e.g., packet data service).

    摘要翻译： 确定终端是否处于当前无线通信系统（例如，分组数据系统）的覆盖范围内并且从当前系统切换到另一个无线通信系统（例如，语音/数据系统）的技术。 在一种方法中，首先获得当前系统中至少一个基站的至少一个参数的至少一个测量。 测量可以是SNR测量。 基于测量并使用（通常与度量阈值和定时器）来导出度量，以确定终端是否在当前系统的覆盖范围内。 如果终端被认为在当前系统的覆盖范围之外，则启动到另一个系统的切换。 两个系统提供至少一个公共服务（例如，分组数据服务）。

    METHOD AND APPARATUS FOR CALL SETUP LATENCY REDUCTION
    45.
    发明申请
    METHOD AND APPARATUS FOR CALL SETUP LATENCY REDUCTION 审中-公开
    呼叫建立减少的方法和装置

    公开(公告)号：US20070086390A1

    公开(公告)日：2007-04-19

    申请号：US11565597

    申请日：2006-11-30

    申请人： Ragulan Sinnarajah ,  Edward Tiedemann ,  Ramin Rezaiifar ,  Jun Wang ,  Duncan Ho

    发明人： Ragulan Sinnarajah ,  Edward Tiedemann ,  Ramin Rezaiifar ,  Jun Wang ,  Duncan Ho

    IPC分类号： H04B7/216

    CPC分类号： H04L1/188 ,  H04L1/1607 ,  H04L2212/00 ,  H04W28/06 ,  H04W28/18 ,  H04W72/04 ,  H04W72/042 ,  H04W76/10 ,  H04W76/11 ,  H04W76/19

    摘要： Techniques for minimizing call setup latency are disclosed. In one aspect, a channel assignment message is sent with a flag to direct the use of previously negotiated service parameters. This aspect eliminates the need for service negotiation messages. In another aspect, a channel assignment message is sent with an active set identifier instead of an active set and its parameters. This aspect reduces the transmission time of the channel assignment message. In yet another aspect, call setup without paging is facilitated by a mobile station (106) sending a pilot strength measurement message between active communication sessions, such that a channel assignment message can be used for mobile station terminated call setup without the need for mobile station paging and related messages.

    摘要翻译： 公开了用于最小化呼叫建立延迟的技术。 在一个方面，用标志发送信道分配消息，以指示使用先前协商的服务参数。 这方面消除了对服务协商消息的需要。 在另一方面，使用活动集标识符而不是活动集及其参数发送信道分配消息。 该方面减少了信道分配消息的传输时间。 在另一方面，移动台（106）在主动通信会话之间发送导频强度测量消息来促进无寻呼的呼叫建立，使得信道分配消息可用于移动台终止的呼叫建立而不需要移动台 寻呼和相关消息。

    Method and apparatus for handoff of a wireless packet data services connection
    48.
    发明申请
    Method and apparatus for handoff of a wireless packet data services connection 有权

    公开(公告)号：US20060187883A1

    公开(公告)日：2006-08-24

    申请号：US11390624

    申请日：2006-03-27

    申请人： Nischal Abrol ,  Ramin Rezaiifar

    发明人： Nischal Abrol ,  Ramin Rezaiifar

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/12

    摘要： A novel method and apparatus is disclosed for performing seamless handoff of a mobile station (MS) between Radio Access Networks (RANs) that use different types of wireless interfaces. The described embodiments enable an MS to handoff between different RANs without causing routing ambiguity, and without substantial loss of network data. Upon moving from the coverage area of a first RAN using a first wireless interface to the coverage area of a second RAN using a second wireless interface, an MS determines whether routing ambiguity may result from the change of RAN and, based on the determination, triggers a re-registration of its network address. A foreign agent (FA) within a packet data serving node (PDSN) monitors network address re-registrations in order to determine whether multiple RAN-PDSN (R-P) connections are being created for the same MS. Based on this determination, the PDSN terminates redundant R-P network connections resulting from movement of the MS between different RANs.

    Connection setup using flexible protocol configuration
    49.
    发明申请
    Connection setup using flexible protocol configuration 有权
    连接设置使用灵活的协议配置

    公开(公告)号：US20060133409A1

    公开(公告)日：2006-06-22

    申请号：US11087187

    申请日：2005-03-22

    申请人： Rajat Prakash ,  Gavin Horn ,  Nikhil Jain ,  Ramin Rezaiifar

    发明人： Rajat Prakash ,  Gavin Horn ,  Nikhil Jain ,  Ramin Rezaiifar

    IPC分类号： H04L12/42 ,  H04J3/02

    CPC分类号： H04L12/2898 ,  H04L63/0428 ,  H04L63/06 ,  H04L63/08 ,  H04L67/04 ,  H04L67/34 ,  H04L69/24 ,  H04W28/18 ,  H04W76/10

    摘要： A user terminal establishes a session with a first access point (AP0) and obtains a token associated with modem configuration information used for radio communication. The user terminal thereafter establishes a connection with a second access point (AP1) by sending the token. AP1 receives the token, obtains the modem configuration information associated with the token, and initializes an air interface protocol stack with the modem configuration information to obtain a modem-specific protocol stack for the user terminal. AP1 sends a response indicating successful connection setup. The user terminal and AP1 thereafter communicate in accordance with the modem-specific protocol stack. AP1 may attempt to fetch the session for the user terminal from AP0. If this is successful, then AP1 updates the protocol stack with the session information to obtain a complete protocol stack for the user terminal. The user terminal and AP1 thereafter communicate with the complete protocol stack.

    摘要翻译： 用户终端与第一接入点（AP 0）建立会话，并且获得与用于无线电通信的调制解调器配置信息相关联的令牌。 用户终端随后通过发送令牌建立与第二接入点（AP 1）的连接。 AP1接收令牌，获得与令牌相关联的调制解调器配置信息，并用调制解调器配置信息初始化空中接口协议栈，以获得用户终端的调制解调器专用协议栈。 AP 1发送一个响应，指示连接建立成功。 用户终端和AP 1此后根据调制解调器特定协议栈进行通信。 AP 1可以尝试从AP 0获取用户终端的会话。 如果这样成功，则AP 1使用会话信息更新协议栈，以获得用户终端的完整协议栈。 用户终端和AP 1此后与完整的协议栈进行通信。