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    Method and apparatus for base station and mobile station time calibration
    24.
    发明公开
    Method and apparatus for base station and mobile station time calibration 审中-公开
    Verfahren undGerätfürZeitkalibration einer Basisstation und einer Mobilstation

    公开(公告)号：EP1596509A2

    公开(公告)日：2005-11-16

    申请号：EP05107489.6

    申请日：2001-08-07

    申请人： Qualcomm, Incorporated

    发明人： YOUNIS, Saed

    IPC分类号： H04B7/26

    CPC分类号： H04W56/009 ,  H04B7/2668

    摘要： A method and apparatus for calibrating a Base Station and Mobile Station for use in systems that use round trip delay and systems that do net use round trip delay.

    摘要翻译： 一种用于校准基站和移动台以用于使用往返延迟的系统以及不使用往返延迟的系统的方法和装置。 使用接收和发送天线的位置的知识来确定基站与基站的发送天线之间的延迟量。

    SYNCHRONIZATION OF TRANSMITTER AND RECEIVER FREQUENCIES IN MULTIACCESS NETWORKS
    27.
    发明公开
    SYNCHRONIZATION OF TRANSMITTER AND RECEIVER FREQUENCIES IN MULTIACCESS NETWORKS 有权
    过程用于无线电网络和相应的装置的集成

    公开(公告)号：EP1527622A2

    公开(公告)日：2005-05-04

    申请号：EP03740866.3

    申请日：2003-06-30

    申请人： Nokia Corporation

    发明人： YLA-JAASKI, Antti ,  GRUNDSTOM, Mikai ,  AALTONEN, Janne

    IPC分类号： H04Q7/20

    CPC分类号： H04W16/14 ,  H04B7/2668 ,  H04B7/2693 ,  H04J3/0644 ,  H04W56/0035 ,  H04W88/06 ,  H04W88/10

    摘要： The present invention provides methods and apparatus for integrating the operation of a plurality of radio networks. The plurality of radio networks may utilize a common frequency spectrum. The radio center frequencies are adjusted so that frequency drift in relation to each radio network is reduced. Also, system information about the plurality of radio networks may be sent on a radio channel that is associated with one of the radio networks. An oscillator synchronizer (517) synchronizes a first reference oscillator (505) that is associated with a first radio network (501) and a second reference oscillator (509) that is associated with a second radio network (503) in order to adjust radio center frequencies. With a variation of the embodiment (519), a reference oscillator (509) of one of the radio network (503) adjusts center frequencies for radios (507) that are associated with the other radio network (501).

    A cell search method and a base station for a code division multiple access mobile communication system
    28.
    发明公开
    A cell search method and a base station for a code division multiple access mobile communication system 有权
    一种码分多址移动通信系统的小区搜索方法和基站

    公开(公告)号：EP1473854A2

    公开(公告)日：2004-11-03

    申请号：EP04017498.9

    申请日：1999-02-26

    申请人： Hitachi, Ltd.

    发明人： Suzuki, May ,  Doi, Nobukazu ,  Yano, Takashi

    IPC分类号： H04B7/26

    CPC分类号： H04B1/70735 ,  H04B1/7075 ,  H04B1/708 ,  H04B1/7083 ,  H04B7/2628 ,  H04B7/2668

    摘要： The present invention relates to a cell search method for a code division multiple access mobile communication system, comprising:

    transmitting, from a base station, a control signal via perch channels (106, 107), said perch channels being formed such that a long period code assigned to said base station and a first short period code are mapped in a first section (102) of one slot of said perch channel; and
    transmitting, from said base station, a predetermined short period code mapped in a second section (131) of said one slot.

    Said predetermined short period code is provided for use by a mobile terminal for performing cell search by calculating a correlation value for said second section of said one slot.
    Said predetermined short period code is transmitted plural times within said second section of said one slot.

    摘要翻译： 本发明涉及一种用于码分多址移动通信系统的小区搜索方法，包括：经由导频信道（106,107）从基站发送控制信号，所述导频信道被形成为使得长周期 分配给所述基站的代码和第一短周期代码被映射到所述共用信道的一个时隙的第一部分（102）中; 以及从所述基站发射映射在所述一个时隙的第二部分（131）中的预定短周期代码。 所述预定短周期代码被提供供移动终端用于通过计算所述一个时隙的所述第二部分的相关值来执行小区搜索。 所述预定短周期代码在所述一个时隙的所述第二部分内被多次传输。

    Method and base station for transmitting information on a common packet data channel
    29.
    发明公开
    Method and base station for transmitting information on a common packet data channel 有权
    Verfahren und Feststation zurInformationsübertragungübereinen gemeinsamen Paketdatenkanal

    公开(公告)号：EP1443679A2

    公开(公告)日：2004-08-04

    申请号：EP04007965.9

    申请日：2000-03-21

    申请人： Golden Bridge Technology, Inc.

    发明人： Kanterakis, Emmanuel ,  Parsa, Kourosh

    IPC分类号： H04B7/005 ,  H04B7/26

    CPC分类号： H04W52/48 ,  H04B7/2668 ,  H04J13/0029 ,  H04J13/10 ,  H04W52/50 ,  H04W52/54

    摘要： A method of transferring data for one of a plurality of base stations (BS) of a wireless telecommunication network, the one base station comprising a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver, the method comprising the steps of:

    transmitting a frame-timing signal from said BS-spread-spectrum transmitter over a broadcast common-synchronization channel having a common chip-sequence signal;
    receiving from a remote station at least one segment comprising a preamble with sufficient power level of an access-burst signal at said BS spread-spectrum receiver at a detected-power level, the access-burst comprising a plurality of segments, each comprising a predefined preamble and a pilot signal, in such a way that the segments are transmitted at a step wise sequentially increasing power levels, the access burst signal starting at the beginning of an access slot, as defined by a frame timing derived from the frame-timing signal;
    transmitting an acknowledgment from said BS-spread-spectrum transmitter to the remote station, in response to the receipt of the at least one segment of the access-burst signal and corresponding to the detected preamble; and
    receiving from the remote station a spread-spectrum signal comprising any of data and power control information at said BS-spread-spectrum receiver.

    摘要翻译： 一种用于传送无线电信网络的多个基站（BS）之一的数据的方法，所述一个基站包括BS扩频发射机和BS扩频接收机，所述方法包括以下步骤： 通过具有公共芯片序列信号的广播公共同步信道从所述BS扩频发射机发送帧定时信号; 从远程站接收至少一个段，所述至少一个段包括具有在所述BS扩频接收机处于检测功率级的接入突发信号的足够功率电平的前同步码，所述接入突发包括多个段，每个段包括预定义的 前导码和导频信号，以这样一种方式，按照从帧定时信号得到的帧定时定义的，以逐步顺序地增加功率电平的接收脉冲串信号从接入时隙的开始开始， ; 响应于所述接入突发信号的所述至少一个段的接收并对应于所检测到的前导码，将来自所述BS-扩展频谱发射机的确认发送到所述远程站; 以及从所述远端站接收包括所述BS扩展频谱接收机中的数据和功率控制信息中的任何一个的扩频信号。

    System and method for measuring propagation delay in an narrowband TDD CDMA mobile communication system
    30.
    发明公开
    System and method for measuring propagation delay in an narrowband TDD CDMA mobile communication system 有权
    装置和方法，用于测量在一个窄带TDD CDMA移动通信系统中的空气的时间延迟

    公开(公告)号：EP1389028A3

    公开(公告)日：2004-05-19

    申请号：EP03019983.0

    申请日：2001-11-19

    申请人： SAMSUNG ELECTRONICS CO. LTD.

    发明人： Lee, Hyun-Woo ,  Choi, Sung-Ho ,  Lee, Kook-Heui ,  Kwak, Byung-Jae, Samsung Electronics Co., Ltd. ,  Kim, Do-Young ,  Hwang, Sung-Oh

    IPC分类号： H04Q7/38 ,  H04B7/26 ,  H04L12/56

    CPC分类号： H04W56/001 ,  H04B7/2618 ,  H04B7/2668 ,  H04B7/2681 ,  H04W56/0045 ,  H04W56/0065 ,  H04W92/10

    摘要： Disclosed is a method for measuring a propagation delay value of a frame transmitted by a UE to a Node B in a TDD mobile communication system. The UE acquires synchronization with the Node B based on a downlink pilot channel signal transmitted in a period of a downlink pilot time slot, and determines an estimated round trip delay value T1 by comparing transmission power of a physical common channel signal in a first time slot with reception power of the physical common channel signal. Further, the UE transmits an uplink pilot channel signal by applying the estimated round trip delay value T1 to a desired transmission point of the uplink pilot channel signal. The UE receives a transmission point correcting value T2 through a forward physical access channel (FPACH) signal transmitted from the Node B in a period of one downlink time slot among the time slots, and transmits a physical random access channel (PRACH) message with the estimated round trip delay value T1 at a transmission point determined based on the transmission point correcting value T2 and the estimated round trip delay value T1, so that the PRACH message is received at the Node B at a start point of a period of one uplink time slot among the time slots.