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    OPERATIONS AND MAINTENANCE OF RADIO BASE STATIONS IN MOBILE TELECOMMUNICATION SYSTEMS
    2.
    发明公开
    OPERATIONS AND MAINTENANCE OF RADIO BASE STATIONS IN MOBILE TELECOMMUNICATION SYSTEMS 有权
    操作和无线电基站维护，在移动电信系统

    公开(公告)号：EP1285551A1

    公开(公告)日：2003-02-26

    申请号：EP01934729.3

    申请日：2001-05-11

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： LUNDH, Peter ,  RUUSKA, Tauno

    IPC分类号： H04Q7/34 ,  H04Q3/00

    CPC分类号： H04W24/00 ,  H04Q3/0079 ,  H04W88/085

    摘要： A method and system are disclosed for improving the Operations and Maintenance (OAM) of base stations (102, 104, 106, 108) in a mobile communication system (100), whereby an OAM connection can be made with a base station (102, 104, 106, 108) over a radio air interface (214) so that failures that occur in the base station can be detected, analyzed and corrected (if possible), even if the normal transmission link (103, 105, 107, 109) to the base station (102, 104, 106, 108) has gone down or become otherwise inoperable. For one embodiment, a Test Mobile Station (TMS) (116) is co-located with or located nearby a radio base station (104) (RBS) (104). The TMS (116) monitors the RBS' operations, and can provide base station operability information to a Radio Network Controller (RNC)(110) and/or OAM unit via an existing radio air interface (214). For a second embodiment, a TMS (116, 120, 124, 128) for remote control of OAM (112) functions is co-located or located nearby a radio base station's mast-mounted equipment.

    SYNCHRONIZATION FOR CELLULAR TELECOMMUNICATIONS NETWORK
    4.
    发明公开
    SYNCHRONIZATION FOR CELLULAR TELECOMMUNICATIONS NETWORK 审中-公开
    同步之后，蜂窝电信网

    公开(公告)号：EP1040609A1

    公开(公告)日：2000-10-04

    申请号：EP98964607.0

    申请日：1998-12-15

    申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ)

    发明人： LUNDH, Peter ,  NESIC, Jasmina

    IPC分类号： H04J3/06 ,  H04B7/26

    CPC分类号： H04J3/0667 ,  H04B7/269 ,  H04J3/0697

    摘要： Synchronization is effected in a cellular telecommunications network (20) between a master timing unit (60) located at control node (30) of the network and a slave timing unit (STU) located either at the control node or a controlled node, e.g., base station (22), of the network. In accomplishing the synchronization, one of the master timing unit or the slave timing unit serves as an initiating timing unit for transmitting a synchronization analysis command message including a first parameter (t1) to the other of the timing units which serves as a responding timing unit. In response, the responding timing unit sends a synchronization analysis response message which includes at least second parameter (t2) and preferably a third parameter (t3) to the initiating timing unit. The initiating unit uses e.g. parameters extracted from the synchronization analysis response message to determine a synchronization adjustment value for the slave timing unit. When the master timing unit is the initiating timing unit, the master timing unit transmits the synchronization adjustment value in a synchronization updating command message to the slave timing unit.

    SYSTEM AND METHOD FOR IMPLEMENTING MULTIPLE CARRIERS IN CELLULAR NETWORKS
    7.
    发明公开
    SYSTEM AND METHOD FOR IMPLEMENTING MULTIPLE CARRIERS IN CELLULAR NETWORKS 有权
    装置和方法创造蜂窝网络中的几个承运人

    公开(公告)号：EP1192732A2

    公开(公告)日：2002-04-03

    申请号：EP00925827.8

    申请日：2000-04-18

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： ANDERSSON, Rutger ,  HANSSON, Bert ,  KARLSSON, Patrik ,  LUNDH, Peter

    IPC分类号： H04B7/005 ,  H04J13/00

    CPC分类号： H04W52/322 ,  H04B7/264 ,  H04W16/00 ,  H04W16/24 ,  H04W72/04 ,  H04W84/042

    摘要： A telecommunications system and method is disclosed for efficient and flexible usage of bandwidth within a code division multiple access (CDMA) cell. Multiple carriers can be included within a CDMA cell, in which a different number of carriers can be allocated to downlink transmissions and uplink transmissions. In addition, a mobile station (MS) can allocate downlink bandwidth from different carriers to contribute to a Traffic channel, making it possible to form high user bit-rates, e.g., 4 Mbps. A CDMA cell can contain a Primary carrier with all channel types and at least one Secondary carrier with only dedicated channels and optionally power controlled common channels. The Primary carrier has a primary scrambling code and zero or more secondary scrambling codes associated therewith, while the Secondary carrier has one or more secondary scrambling codes associated therewith.

    A METHOD AND AN APPARATUS FOR CLIPPING SIGNALS IN A CDMA SYSTEM
    8.
    发明公开
    A METHOD AND AN APPARATUS FOR CLIPPING SIGNALS IN A CDMA SYSTEM 有权
    在CDMA系统中的方法和用于信号限制装置

    公开(公告)号：EP1147633A1

    公开(公告)日：2001-10-24

    申请号：EP00905510.4

    申请日：2000-01-25

    申请人： Telefonaktiebolaget L M Ericsson (Publ)

    发明人： LUNDH, Peter ,  SKOOG, Göran

    IPC分类号： H04J13/02 ,  H04B1/69

    CPC分类号： H04B1/707 ,  H04B2201/70706 ,  H04L5/026 ,  H04L27/262

    摘要： In a method and an apparatus for clipping CDMA carriers clipping for each CDMA carrier is performed on separate circuit boards and the clipping circuit has access to information regarding all carriers to be amplified by the same amplifier. Thus, since each carrier is clipped separately from all other carriers fed to the same amplifier, but having knowledge of the other carriers, a malfunction of the circuit board comprising the clipping circuit and/or clipping evaluation logic, will only affect that particular carrier and the other carriers can still be transmitted. Also, since clipping is carried out for each carrier separately, but taking into account information regarding the other carriers to be amplified by the same power amplifier, the clipping can take phase information into account when determining the clipping factor.