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    • 31. 发明申请
    • SYNCRHONIZATION TECHNIQUES FOR A WIRELESS SYSTEM
    • 无线系统的同步技术
    • WO2004019538A3
    • 2004-07-01
    • PCT/US0326630
    • 2003-08-25
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLANE FRANK ALI JUNYI
    • LAROIA RAJIVLANE FRANK ALI JUNYI
    • H04B7/005H04B7/12H04L27/26H04W52/34H04W52/42H04W56/00H04J11/00H04B7/185H04L5/12
    • H04W52/42H04B7/12H04L27/2662H04W52/34H04W52/343
    • Power control methods and apparatus for use in a sectorized cell of an OFDM communications system are described. Each sector(701, 703, 705) of a cell usees the same frequencies and transmission times and is synchronized with the other sectors in the cell in terms of tone frequencies (707) used at any given time and symbol transmission times. Tones are allocated to channels in each cell in the same manner so that each channel in a sector has a corresponding channel in another sector. Power differences between channels in different sectors are maintained to be within a pre-selected power difference. Different channels in a cell are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.
    • 描述了在OFDM通信系统的扇区化小区中使用的功率控制方法和装置。 单元的每个扇区(701,703,705)使用相同的频率和传输时间,并且根据在任何给定时间和符号传输时间使用的音调频率(707)与小区中的其他扇区同步。 以相同的方式将音调分配给每个小区中的信道,使得扇区中的每个信道在另一个扇区中具有相应的信道。 不同扇区中的信道之间的功率差被维持在预先选择的功率差之内。 单元中的不同通道被分配不同的功率电平。 基于信道反馈信息将无线终端分配给信道。 具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。 低功率通道通常每个符号时间包括比高功率通道更多的音调。
    • 32. 发明申请
    • MULTIPLE ACCESS WIRELESS COMMUNICATIONS SYSTEM USING A MULTISECTOR CONFIGURATION
    • 使用多路复用器配置的多路访问无线通信系统
    • WO2004019537A3
    • 2004-04-22
    • PCT/US0326627
    • 2003-08-25
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLANE FRANK ALI JUNYI
    • LAROIA RAJIVLANE FRANK ALI JUNYI
    • H04B7/005H04B7/12H04L27/26H04B7/00
    • H04W52/34H04B7/12H04L27/2662H04W52/343H04W52/42
    • Power control methods and apparatus for use in a sectorized cell (438) of an OFDM communications system (400) are described. Each sector (442) of a cell (438) uses the same frequencies and transmission times and is synchronized with the other sectors (444) in the cell (438) in terms of tone frequencies used at any given time and symbol transmission times. Tones are allocated to channels in each cell (438, 440) in the same manner so that each channel in a sector (442) has a corresponding channel in another sector (444). Power differences between channels in different sectors (442, 444) are maintained to be within a pre-selected power difference. Different channels in a cell (438) are assigned different power levels. Wireless terminals are assigned to channels based on channel feedback information. Wireless terminals with poor channel conditions are allocated to higher power channels than wireless terminals with good channel conditions. Lower power channels often include more tones per symbol time than high power channels.
    • 描述了在OFDM通信系统(400)的扇区小区(438)中使用的功率控制方法和装置。 按照在任何给定时间和符号传输时间使用的音调频率,单元(438)的每个扇区(442)使用相同的频率和传输时间,并且与小区(438)中的其他扇区(444)同步。 以相同的方式将音调分配给每个小区(438,440)中的信道,使得扇区(442)中的每个信道在另一个扇区(444)中具有相应的信道。 不同扇区(442,444)中的信道之间的功率差被维持在预先选择的功率差之内。 单元(438)中的不同通道被分配不同的功率电平。 基于信道反馈信息将无线终端分配给信道。 具有较差信道条件的无线终端分配给具有良好信道条件的无线终端的较高功率信道。 低功率通道通常每个符号时间包括比高功率通道更多的音调。
    • 39. 发明申请
    • METHODS AND APPARATUS OF IMPROVING INTER-SECTOR AND/OR INTER-CELL HANDOFFS IN A MULTI-CARRIER WIRELESS COMMUNICATIONS SYSTEM
    • 改善多载波无线通信系统中的扇区间和/或小区间切换的方法和装置
    • WO2005039094A3
    • 2005-09-09
    • PCT/US2004034305
    • 2004-10-15
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLANE FRANK A
    • LAROIA RAJIVLANE FRANK A
    • H04B1/38H04L20060101H04W36/00H04W36/08
    • H04W36/0072H04L5/0042H04L5/0048H04L5/0053H04L27/2602H04W36/08
    • A wireless communications system, e.g., an OFDM system, uses a plurality of carrier frequencies each with an associated frequency band. A base station sector transmitter in the system transmits ordinary signaling, e.g., user data, in its own assigned band. In addition the sector base station transmitter periodically transmits beacon signals into its own frequency band and the frequency bands used by adjacent sector transmitters for their ordinary signaling. Beacon signals, being short duration high power signals with sector transmission power concentrated on one or a few tones, are easily detectable. Each beacon signal may be identified as to the source base station sector transmitter, e.g., based on tone. A mobile node, tuned to a single carrier band, receives a plurality of beacon signals, identifies the sources of the received beacons, compares the received strength of the beacons, and makes handoff decisions, without having to switch carrier band.
    • 无线通信系统(例如OFDM系统)使用多个载波频率,每个载波频率具有关联的频带。 系统中的基站扇区发射机在其自己指定的频带中发射普通信令,例如用户数据。 另外,扇区基站发射机周期性地将信标信号发送到它自己的频带和由相邻扇区发射机用于它们的普通信令的频带。 信标信号是具有集中在一个或几个音调上的扇区发射功率的短持续时间高功率信号,很容易检测到。 例如,基于音调,可以针对源基站扇区发射机来识别每个信标信号。 调谐到单载波频带的移动节点接收多个信标信号,识别接收到的信标源,比较接收到的信标强度,并作出切换决定,而不必切换载波频带。
    • 40. 发明申请
    • BEACON SIGNALING IN A WIRELESS SYSTEM
    • 无线系统中的信号信号
    • WO2004019529A2
    • 2004-03-04
    • PCT/US0326626
    • 2003-08-25
    • FLARION TECHNOLOGIES INCLAROIA RAJIVLANE FRANK ALI JUNJI
    • LAROIA RAJIVLANE FRANK ALI JUNJI
    • H04B7/005H04B7/12H04L27/26H04W52/34H04W52/42H04W56/00H04J3/06
    • H04W52/34H04B7/12H04L27/2662H04W52/42
    • A few high power tones for synchronization and/or other purposes are transmitted in a FDM system during a period of time into a region, e.g., sector of a cell, e.g., a symbol transmission time period. During normal data transmission symbol periods signals are transmitted using at least 10 tones, e.g., per symbol time. Less than 5 high power signals are transmitted in a symbol time with at least 80 % the maximum total transmitter power used for transmitting into said region being allocated to the high power signals where the maximum total transmitter power is determined from a period of time which may includes one or more data and/or high power tone transmission periods. When the high power tones transmitted at most 20 % of transmitter power used for transmitting into the region is available for transmitting other tones with the power normally being distributed among multiple tones. Often some tones which would be transmitted in a symbol time go unused during transmission of the high power signals.
    • 用于同步和/或其他目的的几个高功率音调在FDM系统中在一段时间内被传送到诸如单元的扇区(例如符号传输时间段)的区域中。 在正常数据传输期间,使用至少10个音调,例如每个符号时间发送信号。 少于5个高功率信号以符号时间传输,其中至少80%用于发送到所述区域的最大总发射机功率被分配给高功率信号,其中最大总发射机功率是从一段时间确定的 包括一个或多个数据和/或高功率音调传输周期。 当用于发送到该区域的发射机功率的最大20%的高功率音调可用于发送其他音调时,功率通常在多个音调之间分配。 通常,在传输高功率信号期间,将以符号时间传输的一些音调将不被使用。