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65 条记录 (耗时 0.032 秒)

    Seamless context switching for radio link protocol
    1.
    发明授权
    Seamless context switching for radio link protocol 有权
    无线链路协议的无缝上下文切换

    公开(公告)号：US08611303B2

    公开(公告)日：2013-12-17

    申请号：US12012786

    申请日：2008-02-04

    申请人： Ramin Rezaiifar ,  Peter Black

    发明人： Ramin Rezaiifar ,  Peter Black

    IPC分类号： H04W4/00

    CPC分类号： H04W36/02 ,  H04W36/14 ,  H04W76/20 ,  H04W80/06

    摘要： Techniques to support handover of a terminal from a source base station to a target base station are described. In one design, a determination is made whether a change in personality is requested by the terminal. If the answer is ‘Yes’, then the personality of the terminal may be switched by sending one or more appropriate messages. The connection and RLP for the terminal may be reset due to the change in personality. A buffer of data reported by the source base station as being served to the terminal (e.g., no NAK was sent) may be saved by a BSC/PCF. The buffer of data may be sent to the target base station when handover occurs. New data may thereafter be sent to the target base station. This buffer of duplicate data may avoid both loss of data and retransmission timeout by TCP during the handover.

    摘要翻译： 描述了支持终端从源基站到目标基站的切换的技术。 在一种设计中，确定终端是否请求个性的改变。 如果答案是“是”，则可以通过发送一个或多个适当的消息来切换终端的个性。 由于个性的变化，终端的连接和RLP可能被重置。 由BSC / PCF可以保存由源基站向终端提供的数据的缓冲器（例如没有发送NAK）。 当切换发生时，数据的缓冲器可以被发送到目标基站。 此后可将新数据发送到目标基站。 这种重复数据缓冲器可以避免在切换过程中TCP的数据丢失和重传超时。

    Artificial reef and a method of constructing an artificial reef
    2.
    发明申请
    Artificial reef and a method of constructing an artificial reef 审中-公开
    人造礁石和构造人造礁石的方法

    公开(公告)号：US20090297270A1

    公开(公告)日：2009-12-03

    申请号：US11997277

    申请日：2006-07-28

    申请人： Kerry Peter Black ,  Shaw Trevor Mead

    发明人： Kerry Peter Black ,  Shaw Trevor Mead

    IPC分类号： E02B3/04

    CPC分类号： E02B3/046 ,  Y02A10/26

    摘要： A method of constructing an artificial reef. The method includes attaching a reef element (2) to a support structure (100). The support structure (100) and the attached reef element (2) are then transported to a location on the surface of a body of water above an installation location on the seabed. The support structure (100) is secured to the seabed using a coupling means (4) while the support structure (100) and the reef element (2) are at the surface location. The support structure (100) and the reef element (2) are then moved from the surface to the installation location on the seabed using the coupling means (4).

    摘要翻译： 构造人造礁石的方法。 该方法包括将礁元件（2）附接到支撑结构（100）。 然后将支撑结构（100）和附接的礁元件（2）运送到海床上的安装位置上方的水体表面上的位置。 支撑结构（100）使用联接装置（4）固定到海底，同时支撑结构（100）和珊瑚礁元件（2）处于表面位置。 然后使用联接装置（4）将支撑结构（100）和珊瑚礁元件（2）从表面移动到海床上的安装位置。

    Method and apparatus for near-optimal scaling of log-likelihood ratio (LLR) computation in turbo decoding for hybrid automatic repeat request (ARQ)
    3.
    发明授权
    Method and apparatus for near-optimal scaling of log-likelihood ratio (LLR) computation in turbo decoding for hybrid automatic repeat request (ARQ) 失效
    用于混合自动重复请求（ARQ）的turbo解码中对数似然比（LLR）计算近似最优缩放的方法和装置

    公开(公告)号：US07376209B2

    公开(公告)日：2008-05-20

    申请号：US10456148

    申请日：2003-06-06

    申请人： June Namgoong ,  Jun Ma ,  Mingxi Fan ,  Naga Bhushan ,  Peter Black

    发明人： June Namgoong ,  Jun Ma ,  Mingxi Fan ,  Naga Bhushan ,  Peter Black

    IPC分类号： H03D1/00 ,  H04L27/06

    CPC分类号： H03M13/3927 ,  H03M13/2957 ,  H03M13/658 ,  H04L1/0045 ,  H04L1/0066 ,  H04L1/1812 ,  H04L1/1825 ,  Y10S370/912

    摘要： A method and an apparatus for scaling demodulated data symbols contained in a packet to generate scaled log-likelihood ratios for Turbo decoding are disclosed. A packet consists of one or more subpackets depending on the type of packet. Each subpacket is identified by a subpacket identification number. The payload size of the packet and the subpacket identification number may be determined by decoding a reverse rate indicator (RRI) channel. A scale factor which is associated with a specific subpacket identification number and a specific payload size results in a performance measure that is closest to an expected performance measure. The scale factor is used for scaling the demodulated data symbols to generate scaled log-likelihood ratios for Turbo decoding.

    摘要翻译： 公开了一种用于缩放分组中包含的解调数据符号以产生用于Turbo解码的缩放对数似然比的方法和装置。 数据包由一个或多个子数据包组成，具体取决于数据包的类型。 每个子分组由子分组标识号码标识。 可以通过解码反向速率指示符（RRI）信道来确定分组的有效载荷大小和子分组标识号码。 与特定子分组标识号和特定有效载荷大小相关联的比例因子导致最接近预期性能测量的性能度量。 缩放因子用于缩放解调的数据符号以产生用于Turbo解码的缩放的对数似然比。

    PILOT REFERENCE TRANSMISSION FOR A WIRELESS COMMUNICATION SYSTEM
    4.
    发明申请
    PILOT REFERENCE TRANSMISSION FOR A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统的引导参考传输

    公开(公告)号：US20080008136A1

    公开(公告)日：2008-01-10

    申请号：US11858840

    申请日：2007-09-20

    申请人： Roberto Padovani ,  Peter Black ,  Nagabhushana Sindhushayana

    发明人： Roberto Padovani ,  Peter Black ,  Nagabhushana Sindhushayana

    IPC分类号： H04J3/00

    CPC分类号： H04B7/2687 ,  H04B1/707 ,  H04B2201/70701 ,  H04J3/0644 ,  H04W52/325

    摘要： A pilot reference transmission scheme well suited for high data rate wireless communication systems is disclosed. To maximize the amount of interference from transmissions from neighboring transmission sources (e.g., access points or base stations) during the pilot interval, and hence minimize the amount of interference from non-transmitting sources during the data intervals, the pilot references are transmitted in bursts at predetermined time intervals, and the pilot bursts from the access points are synchronized. This results in maximum interference contributions from non-transmitting neighboring access points, facilitating reliable estimation of worst case carrier-to-interference (C/I), and further allows the receiving devices (e.g., access terminals) to easily recognize the bursts as pilot reference. In one embodiment, each access point transmits the pilot bursts at or near its maximum transmit power level and no user-specific data is transmitted during the pilot bursts.

    摘要翻译： 公开了一种非常适合高数据速率无线通信系统的导频参考传输方案。 为了在导频间隔期间使来自相邻传输源（例如，接入点或基站）的传输的干扰量最大化，并且因此在数据间隔期间最小化来自非发射源的干扰量，导频参考以突发 并且来自接入点的导频突发是同步的。 这导致来自非发射相邻接入点的最大干扰贡献，促进对最差情况下的载波干扰（C / I）的可靠估计，并且还允许接收设备（例如，接入终端）容易地将突发识别为导频 参考。 在一个实施例中，每个接入点在其最大发射功率电平处或其附近发射导频脉冲串，并且在导频突发期间不发送用户特定数据。

    Asymmetric mode of operation in multi-carrier communication systems
    6.
    发明申请
    Asymmetric mode of operation in multi-carrier communication systems 有权
    多载波通信系统中的不对称操作模式

    公开(公告)号：US20070060165A1

    公开(公告)日：2007-03-15

    申请号：US11486513

    申请日：2006-07-13

    申请人： Peter Black ,  Rashid Attar ,  Ramin Rezaiifar ,  Parag Agashe ,  Mingxi Fan ,  Roberto Rimini ,  Jun Ma

    发明人： Peter Black ,  Rashid Attar ,  Ramin Rezaiifar ,  Parag Agashe ,  Mingxi Fan ,  Roberto Rimini ,  Jun Ma

    IPC分类号： H04Q7/20

    CPC分类号： H04B7/264 ,  H04L1/16 ,  H04L5/023

    摘要： A method and system for providing asymmetric modes of operation in multi-carrier wireless communication systems. A method may assign a long code mask (LCM) to an information channel associated with a plurality of forward link carriers to transmit data from an access network to an access terminal; and multiplex the information channel on a reverse link carrier. The information channel may include one of data source channel (DSC), data rate control (DRC) and acknowledgment (ACK) information, and the multiplexing may be code division multiplexing (CDM). The AN may instruct the AT on whether to multiplex the DSC information based on feedback from the AT. The method may further offset the ACK information on the reverse link to reduce the reverse link peak to average, CDM the information channel on an I-branch and on a Q-branch, and transmit the code division multiplexed information channel on the reverse link carrier.

    摘要翻译： 一种用于在多载波无线通信系统中提供不对称操作模式的方法和系统。 方法可以将长码掩码（LCM）分配给与多个前向链路载波相关联的信息信道，以将数据从接入网络传输到接入终端; 并在反向链路载波上复用信息信道。 信息信道可以包括数据源信道（DSC），数据速率控制（DRC）和确认（ACK）信息之一，并且复用可以是码分复用（CDM）。 AN可以根据AT的反馈来指示AT是否复用DSC信息。 该方法还可以抵消反向链路上的ACK信息，以减少反向链路峰值平均，CDM在I分支和Q分支上的信道，并在反向链路载波上发送码分多路复用信息信道 。

    Delay lock loops for wireless communication systems
    8.
    发明申请
    Delay lock loops for wireless communication systems 有权

    公开(公告)号：US20060146918A1

    公开(公告)日：2006-07-06

    申请号：US11368115

    申请日：2006-03-03

    申请人： Peter Black ,  Nagabhushana Sindhushayana

    发明人： Peter Black ,  Nagabhushana Sindhushayana

    IPC分类号： H04B1/707

    CPC分类号： H04B7/082 ,  H03L7/089 ,  H03L7/091 ,  H03L7/093

    摘要： Techniques for deriving sample timing for multiple signal instances received on multiple antennas for a given propagation path. In one scheme, a DLL is maintained for each path, and each DLL tracks the timing of the best signal instance for the assigned path. In another scheme, a DLL is maintained for each path, and each DLL tracks the average timing of the multiple signal instances for the assigned path. To reduce timing jitter, the SINR of a signal instance may be estimated for a number of different time offsets. The loop filter for the DLL is initially updated in the normal manner. If a change in the time offset used for the sample timing is detected, then the SINRs for the new and prior offsets are compared. The new time offset is used if the associated SINR is better. Otherwise, the prior time offset is retained and used.

    Synchronized broadcast/multicast communication
    10.
    发明申请
    Synchronized broadcast/multicast communication 有权
    同步广播/组播通信

    公开(公告)号：US20050175070A1

    公开(公告)日：2005-08-11

    申请号：US11041136

    申请日：2005-01-20

    申请人： Matthew Grob ,  Peter Black ,  Srikant Jayaraman ,  Paul Jacobs

    发明人： Matthew Grob ,  Peter Black ,  Srikant Jayaraman ,  Paul Jacobs

    IPC分类号： H04L5/02 ,  H04L27/26 ,  H04B1/707

    CPC分类号： H04L5/026 ,  H04L27/2607

    摘要： Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.

    摘要翻译： 同步广播使用来自多个发射机的相同波形发送相同的广播内容。 发射机各自对广播传输应用相同的扩展码。 在具有时分多路复用前向链路的扩频通信系统中，将同步的广播传输插入广播时隙。 一个实施例采用用于同步广播的正交频分复用（OFDM）波形。 然后使用OFDM接收机来处理所接收的同步广播传输。 替代实施例实现广播伪随机噪声（PN）码，供多个发射机使用。 然后使用均衡器来估计同步的广播传输。