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    • 2. 发明授权
    • Establishment of a connection between a base station and a mobile station using random access channels
    • 使用随机接入信道建立基站与移动台之间的连接
    • US06539236B2
    • 2003-03-25
    • US09117923
    • 1998-12-09
    • Hannu HäkkinenSeppo GranlundSeppo Hämäläinen
    • Hannu HäkkinenSeppo GranlundSeppo Hämäläinen
    • H04B700
    • H04W74/0833H04B7/022H04W36/18H04W36/36H04W48/20H04W52/40H04W74/0866
    • A connection establishment method for establishing a random access type connection using a random access channel, which is used in a radio system having several subscriber terminal equipments (37 to 38) and base stations (33 to 36) where one or more transceiver units (40 to 47) operate, and in which system connection establishment between one of the subscriber terminal equipments (37 to 38) and the base station (33 to 36) is possible when the one subscriber terminal equip nt (37 to 38) is situated in the coverage area of one or more transceiver units (40 to 47) of the base station, where the one subscriber terminal equipment (3 to 38) evaluates the quality of the connections to be established. Starting from a condition in which no connection is established with the one subscriber terminal equipment, the one subscriber terminal equipment (37 to 38) forms a random access type connection to more than one base station transceiver unit (40 to 47) included in one or more base stations (33 to 38). m
    • 一种连接建立方法,用于使用随机接入信道建立随机接入型连接,所述随机接入信道用于具有若干用户终端设备(37至38)和基站(33至36)的无线电系统中,其中一个或多个收发器单元(40 并且当一个用户终端设备(37至38)位于该用户终端设备(37至38)中时,可以在其中一个用户终端设备(37至38)和基站(33至36)之间进行系统连接建立 所述基站的一个或多个收发器单元(40至47)的覆盖区域,其中所述一个用户终端设备(3至38)评估要建立的连接的质量。 从与一个用户终端设备不建立连接的条件开始,一个用户终端设备(37至38)形成随机接入型连接到多于一个的基站收发器单元(40至47),其包括在一个或多个 更多的基站(33到38)。 m
    • 3. 发明授权
    • Power control method of discontinuous transmission
    • 不连续传输的功率控制方法
    • US08543153B2
    • 2013-09-24
    • US12854575
    • 2010-08-11
    • Seppo HämäläinenAntti Lappeteläinen
    • Seppo HämäläinenAntti Lappeteläinen
    • H04B7/00
    • H04W52/267H04W52/44H04W52/60
    • According to the proposed method, the frequency of power control commands transmitted on a power control channel is changed according to the traffic. When the traffic becomes slower in at least one direction due to a DTX state, a slower transfer rate, asymmetric data transfer or for any other reason, the frequency of power control commands is lowered. Both the base station and the personal station may lower the frequency of the commands which they send. An alternative to changing the frequency of power control commands is to change the energy of power control bits. The duration of power control bits must hereby be extended, if a standard bit error ration is desired. If the system is frequency-divided and/or time-divided and uses frequency control command of several bits, the length of the command word may be shortened in addition to or as an alternative to the change in frequency. The power control algorithm may be changed several times during a traffic connection.
    • 根据所提出的方法,在功率控制信道上发送的功率控制命令的频率根据流量而改变。 当由于DTX状态,较慢的传输速率,不对称数据传输或由于任何其它原因,当至少一个方向的业务变得较慢时,功率控制命令的频率降低。 基站和个人站都可能降低发送命令的频率。 改变功率控制命令频率的替代方案是改变功率控制位的能量。 必须延长功率控制位的持续时间,如果需要标准误码率。 如果系统被分频和/或分时,并且使用几位的频率控制命令,除了频率变化之外或作为频率变化的替代,可以缩短命令字的长度。 功率控制算法可能在流量连接期间被改变多次。
    • 6. 发明授权
    • Method for minimizing effect of interference, and radio system
    • 减少干扰影响的方法和无线电系统
    • US06438356B1
    • 2002-08-20
    • US09974828
    • 2001-10-12
    • Harri LiljaSeppo Hämäläinen
    • Harri LiljaSeppo Hämäläinen
    • H04B100
    • H04W52/18H04W52/54
    • A method for minimizing the effect of interference in a radio system including a radio system comprises a measuring means which is adapted to measure the transmission frequency of the power control requests transmitted by a base transceiver station to each subscriber terminal. The radio system comprises an attenuation means which is adapted to alter the attenuation of the signals arriving at the reception band of the base transceiver station and which are transmitted by the subscriber terminal, the transmission frequency of power control requests transmitted to which has exceeded a predefined transmission frequency of power control requests.
    • 一种用于最小化包括无线电系统在内的无线电系统中的干扰影响的方法,包括测量装置,该测量装置适于测量由基站收发器发送给每个用户终端的功率控制请求的传输频率。 无线电系统包括衰减装置,该衰减装置适于改变到达基站收发台的接收频带并由用户终端发射的信号的衰减,发送的超过预定义的功率控制请求的发射频率 功率控制请求的传输频率。
    • 8. 发明授权
    • Power control method of discontinuous transmission
    • 不连续传输的功率控制方法
    • US07263077B1
    • 2007-08-28
    • US09155231
    • 1998-01-21
    • Seppo HämäläinenAntti Lappeteläinen
    • Seppo HämäläinenAntti Lappeteläinen
    • H04B7/26
    • H04W52/267H04W52/44H04W52/60
    • According to the proposed method, the frequency of power control commands transmitted on a power control channel is changed according to the traffic. When the traffic becomes slower in at least one direction due to a DTX state, a slower transfer rate, asymmetric data transfer or for any other reason, the frequency of power control commands is lowered. Both the base station and the personal station may lower the frequency of the commands which they send. An alternative to changing the frequency of power control commands is to change the energy of power control bits. The duration of power control bits must hereby be extended, if a standard bit error ratio is desired. If the system is frequency-divided and/or time-divided and uses frequency control command of several bits, the length of the command word may be shortened in addition to or as an alternative to the change in frequency. The power control algorithm may be changed several times during a traffic connection.
    • 根据所提出的方法,在功率控制信道上发送的功率控制命令的频率根据流量而改变。 当由于DTX状态,较慢的传输速率,不对称数据传输或由于任何其它原因,当至少一个方向的业务变得较慢时,功率控制命令的频率降低。 基站和个人站都可能降低发送命令的频率。 改变功率控制命令频率的替代方案是改变功率控制位的能量。 必须延长功率控制位的持续时间,如果需要标准误码率。 如果系统被分频和/或分时,并且使用几位的频率控制命令,除了频率变化之外或作为频率变化的替代,可以缩短命令字的长度。 功率控制算法可能在流量连接期间被改变多次。
    • 9. 发明授权
    • Making measurements on parallel frequencies in a radio communications device
    • 在无线电通信设备中对并行频率进行测量
    • US07133434B1
    • 2006-11-07
    • US09424623
    • 1998-05-29
    • Antti ToskalaHarri HolmaSeppo Hämäläinen
    • Antti ToskalaHarri HolmaSeppo Hämäläinen
    • H04B1/69H04L27/06
    • H04W52/42H04B7/0817
    • A diversity receiver in a radio apparatus has at least two reception branches and a RAKE receiver to combine signal received by the different reception branches as well as a measuring receiver to make frequency specific measurements. The radio apparatus includes a switch connected with at least one reception branch and has at least two states in the first of which the switch is arranged to direct a signal received by a reception branch to the RAKE receiver and in the second of which the switch is arranged to direct a signal received by a reception branch to the measuring receiver. The radio apparatus makes measurements at other than the operating frequency without the reception at the operating frequency being interrupted. In a communications system the measurements may be associated with a handover.
    • 无线电设备中的分集接收机具有至少两个接收分支和RAKE接收机,以组合由不同接收分支接收的信号以及测量接收机以进行频率特定测量。 无线电设备包括与至少一个接收分支相连的开关,并且具有至少两个状态,第一个开关被布置成将由接收支路接收到的信号引导到RAKE接收器,其中第二个开关是 被布置成将由接收分支接收的信号引导到测量接收器。 无线电设备在工作频率以外进行测量,而不会在工作频率中断接收。 在通信系统中,测量可以与切换相关联。
    • 10. 发明授权
    • Method for determining whether to perform link adaptation in WCDMA communications
    • 用于确定是否在WCDMA通信中执行链路自适应的方法
    • US07027420B2
    • 2006-04-11
    • US09912227
    • 2001-07-24
    • Seppo Hämäläinen
    • Seppo Hämäläinen
    • H04B7/216
    • H04L1/0015H04L1/0009H04L1/0034H04L1/16H04L1/20H04W52/241
    • An apparatus and corresponding method for deciding whether to perform link adaptation for communication transmitted from a first communication device to a second communication device, where the second communication device examines a signal received from the first communication device and provides a first indication of the quality of the signal. The method includes the steps of: recording at least one first indication of the quality of the signal as received by the second communication device; providing a second indication of the quality of the signal based on the at least one first indication of the quality of the signal; and deciding to perform link adaptation based on the second indication of the quality of the signal. The first indication of the quality of the signal is for example a signal to interference ratio (SIR) estimate. Often, the second indication of the quality of the signal is a changed SIR target value.
    • 一种用于决定是否对从第一通信设备发送到第二通信设备的通信进行链路自适应的设备和相应方法,其中第二通信设备检查从第一通信设备接收的信号,并且提供第一通信设备的质量的第一指示 信号。 该方法包括以下步骤:记录由第二通信设备接收的信号质量的至少一个第一指示; 基于所述信号的质量的所述至少一个第一指示,提供所述信号的质量的第二指示; 并且基于信号的质量的第二指示来决定执行链路自适应。 信号质量的第一个指示是例如信号干扰比(SIR)估计。 通常,信号质量的第二指示是改变的SIR目标值。