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    Apparatus and method for performing initial cell search in wireless communication systems
    31.
    发明申请
    Apparatus and method for performing initial cell search in wireless communication systems 审中-公开

    公开(公告)号：US20050221848A1

    公开(公告)日：2005-10-06

    申请号：US11129789

    申请日：2005-05-16

    Applicant: Prabhakar Chitrapu ,  Louis Guccione ,  Andrew Bednarz

    Inventor： Prabhakar Chitrapu ,  Louis Guccione ,  Andrew Bednarz

    IPC: H04B1/7073 ,  H04B1/7083 ,  H04Q7/34 ,  H04B1/69

    CPC classification number: H04B1/70735 ,  H04B1/7083

    Abstract: The system and method of the present invention establishes a communication link between a user equipment (UE) and a base station in a communication system having a plurality of base stations which each transmit a common primary synchronization code (PSC) in a primary synchronization channel in conjunction with a base station specific secondary synchronization code (SSC) within a system frame, which receives with the UE an input signal including the PSC and SSC from at least one of the base stations. The UE analyzes the input signal to detect any received PSCs within a selected time period which has duration corresponding to the length of a system frame and determining a relative location of a strongest PSC within the selected time period. The input signal is then processed to remove the PSC from at least the determined PSC location. A secondary synchronization code (SSC) is then detected for the determined location from the processed signal. The communication link is then established using the detected SSCs.

    User controlled transaction archiving
    32.
    发明申请
    User controlled transaction archiving 有权
    用户控制的交易归档

    公开(公告)号：US20050192040A1

    公开(公告)日：2005-09-01

    申请号：US11022704

    申请日：2004-12-27

    Applicant: Prabhakar Chitrapu

    Inventor： Prabhakar Chitrapu

    IPC: H04M1/656 ,  H04M11/10 ,  H04W4/12 ,  H04Q7/20

    CPC classification number: H04W4/12 ,  H04M1/656 ,  H04M2250/68

    Abstract: A connection between a wireless transmit/receive unit (WTRU) and another node through a wireless network is established. The connection is used for communication. A user input is received. In response to the received user input, a communication through the connection is recoded while the WTRU still communicates the communication to a user of the WTRU. The recorded communication is retrieved and the recorded communication is communicated to the user at a later time.

    Abstract translation: 通过无线网络建立无线发射/接收单元（WTRU）与另一节点之间的连接。 连接用于通信。 接收用户输入。 响应于所接收的用户输入，通过连接的通信被重新编码，而WTRU仍然将该通信传送给WTRU的用户。 记录的通信被检索，并且记录的通信在稍后的时间被传送给用户。

    WIRELESS COMMUNICATION METHOD AND APPARATUS FOR USING FRACTIONAL CHANNELS TO SUPPORT COMMUNICATION SERVICES THAT USE HIGHER ORDER MODULATION
    36.
    发明申请
    WIRELESS COMMUNICATION METHOD AND APPARATUS FOR USING FRACTIONAL CHANNELS TO SUPPORT COMMUNICATION SERVICES THAT USE HIGHER ORDER MODULATION 审中-公开
    无线通信方法和使用分支信道支持使用更高阶调制的通信服务的设备

    公开(公告)号：US20080013486A1

    公开(公告)日：2008-01-17

    申请号：US11773595

    申请日：2007-07-05

    Applicant: Prabhakar Chitrapu ,  Paul Russell

    Inventor： Prabhakar Chitrapu ,  Paul Russell

    IPC: H04Q7/00 ,  H04J9/00 ,  H04Q7/20

    CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L27/34

    Abstract: A method and apparatus for enhancing communication services in an evolved global system for mobile communications (GSM)/enhanced data rates for GSM evolution (EDGE) radio access network (GERAN) are disclosed. At least one full rate physical channel and/or half rate physical channel are provided to support communication services that do not require higher order modulation (HOM), and at least one fractional rate physical channel is provided to support the communication services that require HOM. The fractional rate channel occupies N timeslots for every M frames of a channel, whereby N/M is less than one half. The fractional rate channel may be used when communication services are provided on a channel that uses either 16 or 32 quadrature amplitude modulation (QAM) in a dual transfer mode (DTM) session. The communications services include at least one of voice communication services, circuit switched (CS) services and supplementary services.

    Abstract translation: 公开了一种用于在演进的用于GSM演进（EDGE）无线电接入网络（GERAN）的移动通信（GSM）/增强数据速率的全球系统中增强通信服务的方法和装置。 提供至少一个全速率物理信道和/或半速率物理信道以支持不需要更高阶调制（HOM）的通信服务，并且提供至少一个分数速率物理信道以支持需要HOM的通信服务。 分数速率信道占用信道每M帧的N个时隙，由此N / M小于一半。 当在双传输模式（DTM）会话中使用16或32正交幅度调制（QAM）的信道上提供通信服务时，可以使用分数速率信道。 通信服务包括语音通信服务，电路交换（CS）服务和辅助服务中的至少一个。

    WIRELESS COMMUNICATION METHOD AND SYSTEM FOR BIT INTERLEAVED CODED MODULATION AND ITERATIVE DECODING
    37.
    发明申请
    WIRELESS COMMUNICATION METHOD AND SYSTEM FOR BIT INTERLEAVED CODED MODULATION AND ITERATIVE DECODING 有权
    用于位交互编码调制和迭代解码的无线通信方法和系统

    公开(公告)号：US20070260958A1

    公开(公告)日：2007-11-08

    申请号：US11617013

    申请日：2006-12-28

    Applicant: Yingxue Li ,  Prabhakar Chitrapu

    Inventor： Yingxue Li ,  Prabhakar Chitrapu

    IPC: H03M13/29

    CPC classification number: H04L1/0048 ,  H03M13/27 ,  H03M13/6362 ,  H04L1/005 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0023 ,  H04L27/2626 ,  H04L27/2647

    Abstract: A wireless communication method and system for performing bit-interleaved coded modulation and iterative decoding. The system includes a transmitter and a receiver. The transmitter encodes incoming bits to generate coded bits, punctures the coded bits in accordance with a predetermined puncturing pattern to generate surviving channel bits and stolen bits and interleaves the surviving bits into interleaved surviving bits. The interleaved surviving bits are mapped to channel symbols and the stolen bits are interleaved to generate interleaved stolen bits. At least one of a plurality of antennas is selected to transmit the channel symbols based on the value of the interleaved stolen bits. The receiver receives the transmitted channel symbols, estimates a posteriori probability for both the channel symbols and the stolen bits, and retrieves information of the stolen bits by determining the selected antenna used to transmit the channel symbols.

    Abstract translation: 一种用于执行比特交织的编码调制和迭代解码的无线通信方法和系统。 该系统包括发射机和接收机。 发射机对输入比特进行编码以产生编码比特，根据预定的穿孔模式对编码比特进行打孔，以产生幸存的信道比特和被盗的比特，并将幸存的比特交织到交织的幸存比特中。 交织的存活比特被映射到信道符号，并且被窃取的比特被交织以产生交织的被盗的比特。 选择多个天线中的至少一个基于交织的被盗比特的值来发送信道符号。 接收机接收所发送的信道符号，估计信道符号和被盗的比特的后验概率，并且通过确定用于发送信道符号的所选择的天线来检索被盗的比特的信息。

    Method and system for a low-overhead mobility management protocol in the internet protocol layer
    38.
    发明申请
    Method and system for a low-overhead mobility management protocol in the internet protocol layer 有权
    互联网协议层的低开销移动性管理协议的方法和系统

    公开(公告)号：US20070025366A1

    公开(公告)日：2007-02-01

    申请号：US11542842

    申请日：2006-10-04

    Applicant: Sharif Shahrier ,  Prabhakar Chitrapu

    Inventor： Sharif Shahrier ,  Prabhakar Chitrapu

    IPC: H04L12/56

    CPC classification number: H04W36/0083 ,  C07C43/313 ,  C07C69/63 ,  C07D307/79 ,  H04L29/06 ,  H04L29/12009 ,  H04L29/1233 ,  H04L29/12367 ,  H04L29/12424 ,  H04L29/12462 ,  H04L45/26 ,  H04L61/25 ,  H04L61/2514 ,  H04L61/2535 ,  H04L61/255 ,  H04W8/04 ,  H04W8/082 ,  H04W8/26 ,  H04W40/36 ,  H04W80/04 ,  H04W84/105 ,  H04W88/005

    Abstract: A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location. Accordingly, a data communication from a corresponding node (CN) to a selected MN is communicated to the selected MN by accessing the Mobile Node Location List of the selected MN's home Router to determine the communication address corresponding to the selected MN's current location and directing the data communication to that determined communication address.

    Abstract translation: 提供一种用于支持移动因特网通信的系统和方法，其采用多个路由器和多个移动节点（MN）。 每个路由器都有一个独特的通讯地址。 每个MN与归属路由器相关联。 每个路由器具有相关联的移动节点位置列表，其标识路由器是家庭路由器的每个MN，以及对应于每个这样的MN的当前位置的路由器的通信地址。 每个MN可以从MN通过一个路由器与因特网通信的旧位置移动到MN通过不同路由器与因特网通信的当前位置。 通过与MN的归属路由器通信，将不同路由器的通信地址作为与MN当前位置对应的通信地址进行通信，建立通过不同路由器在当前位置的通信。 因此，通过访问所选MN的归属路由器的移动节点位置列表来确定与所选择的MN的当前位置相对应的通信地址，并将所指示的MN的当前位置的通信地址指向 数据通信到确定的通信地址。

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