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    METHOD FOR CONTROLLING RADIO COMMUNICATIONS DURING IDLE PERIODS IN A WIRELESS SYSTEM
    1.
    发明申请
    METHOD FOR CONTROLLING RADIO COMMUNICATIONS DURING IDLE PERIODS IN A WIRELESS SYSTEM 审中-公开
    无线系统中空闲时段无线电通信的控制方法

    公开(公告)号：WO2007133395A2

    公开(公告)日：2007-11-22

    申请号：PCT/US2007/009847

    申请日：2007-04-24

    Applicant: LUCENT TECHNOLOGIES INC. ,  BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  SONG, Lei

    Inventor： BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  SONG, Lei

    IPC: H04L12/28

    CPC classification number: H04L27/261 ,  H04B7/2637 ,  H04W72/1226

    Abstract: A method is provided for maintaining synchronization between an AT and a base station during an idle period. During the idle period, a reduced number of uplink reference signals for uplink channel quality estimation are sent to the base station by the AT. The uplink reference signals are sent to assist coherent demodulation and uplink channel quality estimation for scheduling. During the uplink idle period, the numbers of uplink reference signals are designed to be reduced in selective coherent bandwidths. The selection of the coherent bandwidth alternates in time and covers the entire spectrum to allow the channel quality estimation through the entire spectrum.

    Abstract translation: 提供了一种用于在空闲时段期间保持AT与基站之间的同步的方法。 在空闲期间，用于上行链路信道质量估计的上行链路参考信号的数量减少由AT发送到基站。 发送上行链路参考信号以协助相干解调和上行链路信道质量估计进行调度。 在上行链路空闲时段期间，上行链路参考信号的数量被设计为在选择性相干带宽中减少。 相干带宽的选择在时间上交替并且覆盖整个频谱以允许通过整个频谱的信道质量估计。

    RACH PREAMBLE DETECTION RECEIVER
    2.
    发明申请
    RACH PREAMBLE DETECTION RECEIVER 审中-公开
    RACH PREAMBLE检测接收器

    公开(公告)号：WO2008156588A1

    公开(公告)日：2008-12-24

    申请号：PCT/US2008/007240

    申请日：2008-06-10

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHENG, Fang-Chen ,  SONG, Lei ,  YE, Henry, Hui

    Inventor： CHENG, Fang-Chen ,  SONG, Lei ,  YE, Henry, Hui

    IPC: H04L27/26

    CPC classification number: H04L27/265 ,  H04L27/2613 ,  H04L27/2652

    Abstract: A low complexity RACH preamble detector is described herein. The RACH is filtered out of the received signal in the time domain through a low pass polyphase filter (22) and the decimated (24). By consequence the dimension of the FFT can be reduced. The RACH is extracted from the output of the FFT and it is correlated with a CAZAC frequency domain reference sequence (16). Thereafter, the signal obtained is transformed in the time domain (18) and a peak is retrieved (20).

    Abstract translation: 这里描述了低复杂度的RACH前导码检测器。 通过低通多相滤波器（22）和抽取的（24）在时域中从接收信号中滤出RACH。 由此可以减少FFT的尺寸。 从FFT的输出中提取RACH，并与CAZAC频域参考序列（16）相关。 此后，将获得的信号在时域（18）中变换，并且检索峰值（20）。

    METHOD OF USING UPLINK REFERENCE SIGNALS FOR ACCESS GRANT REQUESTS
    3.
    发明申请
    METHOD OF USING UPLINK REFERENCE SIGNALS FOR ACCESS GRANT REQUESTS 审中-公开
    使用上传参考信号获取授权要求的方法

    公开(公告)号：WO2008094429A2

    公开(公告)日：2008-08-07

    申请号：PCT/US2008/000887

    申请日：2008-01-23

    Applicant: LUCENT TECHNOLOGIES INC. ,  BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  LEE, Jung, Ah ,  SONG, Lei ,  TATESH, Said

    Inventor： BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  LEE, Jung, Ah ,  SONG, Lei ,  TATESH, Said

    IPC: H04Q7/38

    CPC classification number: H04W74/0866 ,  H04L25/0204 ,  H04L27/2613

    Abstract: The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.

    Abstract translation: 本发明提供一种使用上行链路参考信号进行接入许可请求的方法和装置。 该方法包括基于指示应用于至少一个参考信号的屏蔽序列的改变的信息来确定至少一个移动单元正在请求对至少一个上行链路信道的访问。 本发明的另一实施例包括提供由第一屏蔽序列调制的第一参考信号，以指示访问至少一个上行链路信道的请求。

    METHOD FOR SUPPORTING COORDINATED COMMUNICATION SERVICES
    4.
    发明申请
    METHOD FOR SUPPORTING COORDINATED COMMUNICATION SERVICES 审中-公开
    支持协调通信服务的方法

    公开(公告)号：WO2008024191A1

    公开(公告)日：2008-02-28

    申请号：PCT/US2007/017456

    申请日：2007-08-06

    Applicant: LUCENT TECHNOLOGIES INC. ,  CASATI, Alessio ,  CHENG, Fang-Chen ,  PALAT, Sudeep, Kumar ,  TATESH, Said

    Inventor： CASATI, Alessio ,  CHENG, Fang-Chen ,  PALAT, Sudeep, Kumar ,  TATESH, Said

    IPC: H04L12/18

    CPC classification number: H04W72/005 ,  H04L12/1881 ,  H04L12/189 ,  H04W56/00 ,  H04W56/001

    Abstract: A communication system includes a decentralized, flat architecture where a plurality of base nodes each include controller capabilities so that a centralized base node such as a radio network controller is not required. At least one of the base nodes acts as an anchor node. The anchor node associates a time stamp with at least one packet and provides that to the plurality of base nodes. In one example, a multicast approach is used by a router device for distributing the packet and the associated time stamp to the plurality of base nodes. Each base node controls a timing of a transmission of the at least one packet over a wireless interface responsive to the associated time stamp.

    Abstract translation: 通信系统包括分散的平面架构，其中多个基本节点各自包括控制器能力，使得不需要诸如无线电网络控制器的集中式基站节点。 至少一个基本节点用作锚节点。 锚节点将时间戳与至少一个分组相关联，并将其提供给多个基本节点。 在一个示例中，路由器设备使用多播方法来将分组和相关联的时间戳分发到多个基本节点。 响应于相关联的时间戳，每个基站节点通过无线接口控制至少一个分组的传输定时。

    COORDINATING TRANSMISSION SCHEDULING AMONG MULTIPLE BASE STATIONS
    5.
    发明申请
    COORDINATING TRANSMISSION SCHEDULING AMONG MULTIPLE BASE STATIONS 审中-公开

    公开(公告)号：WO2007142939A3

    公开(公告)日：2007-12-13

    申请号：PCT/US2007/012689

    申请日：2007-05-29

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHENG, Fang-Chen ,  LI, Shupeng ,  SONG, Lei

    Inventor： CHENG, Fang-Chen ,  LI, Shupeng ,  SONG, Lei

    IPC: H04Q7/38 ,  H04Q7/36

    Abstract: A method and an apparatus for scheduling transmissions of a plurality of cells in a wireless communications system including one or more base stations is provided. The method comprises providing a set of virtual channels to enable an intra-cell transmission orthogonal to another transmission within each cell of the plurality of cells and inter-cell transmissions orthogonal to other transmissions across a cluster of cells associated with the one or more base stations. The method further comprises exchanging signaling messages between two or more base stations to coordinate- scheduling of the intra-cell transmission with the inter-cell transmissions for the cluster of cells. For optimizing a parameter associated with scheduling of a plurality of users from a cluster of cells in a wireless communication system, an optimal power level for the parameter of each active user may be searched to maximize an indication of system capacity of the wireless communication system. This enables a coordinated jointly scheduling of the users active in the cluster of cells based on the optimal power levels such that the total interference within the cluster may be minimized to maximize the system throughput/capacity.

    METHOD FOR PEAK-TO-AVERAGE POWER RATIO REDUCTION IN TELECOMMUNICATION SYSTEMS
    8.
    发明申请
    METHOD FOR PEAK-TO-AVERAGE POWER RATIO REDUCTION IN TELECOMMUNICATION SYSTEMS 审中-公开
    在电信系统中平均降低功率比的方法

    公开(公告)号：WO2008042189A1

    公开(公告)日：2008-04-10

    申请号：PCT/US2007/020787

    申请日：2007-09-26

    Applicant: LUCENT TECHNOLOGIES INC. ,  BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  SONG, Lei

    Inventor： BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  SONG, Lei

    IPC: H04L27/26 ,  H04L5/02

    CPC classification number: H04L27/2614 ,  H04L5/023

    Abstract: A disclosed method of reducing peak to average power ratio (PAPR) includes selecting a PAPR reduction method dependent on a modulation scheme used for a set of sub-carriers. One type of modulation scheme is more suitable for at least one possible PAPR reduction method while another modulation scheme is more suitable for a different PAPR reduction method. Disclosed examples apply a different PAPR reduction technique to accommodate differing features of different modulation schemes.

    Abstract translation: 所公开的降低峰均功率比（PAPR）的方法包括：根据用于一组子载波的调制方案来选择PAPR降低方法。 一种类型的调制方案更适合于至少一种可能的PAPR减少方法，而另一种调制方案更适合于不同的PAPR缩减方法。 公开的示例应用不同的PAPR缩减技术来适应不同调制方案的不同特征。

    METHOD FOR INCREASING SPECTRUM EFFICIENCY IN AN OFDM BASED MULTI-BANDWIDTH WIRELESS SYSTEM
    10.
    发明公开
    METHOD FOR INCREASING SPECTRUM EFFICIENCY IN AN OFDM BASED MULTI-BANDWIDTH WIRELESS SYSTEM 审中-公开
    方法，以提高效率的范围在OFDM基于多带宽的无线系统

    公开(公告)号：EP2016793A2

    公开(公告)日：2009-01-21

    申请号：EP07776023.9

    申请日：2007-04-24

    Applicant: LUCENT TECHNOLOGIES INC.

    Inventor： BACHL, Rainer, Walter ,  CHENG, Fang-Chen ,  SEYMOUR, James, Paul ,  SONG, Lei ,  TATESH, Said

    IPC: H04Q7/36

    CPC classification number: H04L5/0037 ,  H04L5/0007 ,  H04W16/12

    Abstract: A method is provided for operating a multi-bandwidth OFDMA system that can achieve an enhanced bandwidth efficiency due to windowing without significantly impacting the underlying physical design of the receive filters. The method comprises establishing a bandwidth over which the radio resources transmit signals, the bandwidth being comprised of an edge-band and a center-band. Narrow band radio resources are assigned to a portion of the bandwidth that is at least partially within the edge-band.

    Abstract translation: 提供了一种用于因加窗操作多带宽OFDMA系统确实可以在增强带宽效率实现而不显着影响接收滤波器的底层的物理设计的方法。 该方法包括：建立在其上的无线电资源发送的信号的带宽，所述带宽由边带和中心波段。 窄带无线电资源被分配给该带宽的部分至少在边带内做部分。

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