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11. 发明授权

US08160630B2 Method and arrangement for controlling transmission power and a network element 有权
标题翻译：用于控制传输功率和网元的方法和装置
公开(公告)号：US08160630B2
公开(公告)日：2012-04-17
申请号：US12008173
申请日：2008-01-08
申请人： Seppo Hämäläinen
发明人： Seppo Hämäläinen
IPC分类号： G06F15/16
CPC分类号： H04W52/12 , H04W52/24 , H04W52/36
摘要： This invention relates to a method and arrangement for controlling transmission power in a mobile communications system, and to a network element. In the method according to the invention a certain target level is defined for a value representing the quality of a signal, which target level should be reached by the received signal. According to the invention this target level is advantageously limited so as to be smaller than or equal to a first predetermined limit value and/or greater than or equal to a second predetermined limit value. In accordance with the invention the quality of the signal may be measured e.g. by means of an SIR value. In the method according to the invention the quality of the received signal is checked and, based on the check, a first SIR target level is given to a comparing element (21). By means of the comparing element (21) it is ensured that the said first SIR target level falls within predetermined limits. Based on the comparison, a final SIR target level is given to a power control element (12) which produces a power control signal in order to adjust the transmission power.
摘要翻译：本发明涉及用于控制移动通信系统中的发射功率的方法和装置，以及网络元件。在根据本发明的方法中，对于表示信号的质量的值来定义某个目标电平，该信号的质量应由接收的信号达到。根据本发明，该目标水平有利地被限制为小于或等于第一预定极限值和/或大于或等于第二预定极限值。根据本发明，信号的质量可以被测量。通过SIR值。在根据本发明的方法中，检查接收信号的质量，并且基于该检查，向比较元件（21）给出第一SIR目标电平。通过比较元件（21），确保所述第一SIR目标水平落在预定限度内。基于该比较，给功率控制元件（12）提供最终SIR目标电平，功率控制元件（12）产生功率控制信号以便调节发射功率。

12. 发明授权

US07801545B2 Power control method of discontinuous transmission 有权
标题翻译：不连续传输的功率控制方法
公开(公告)号：US07801545B2
公开(公告)日：2010-09-21
申请号：US11025014
申请日：2004-12-30
申请人： Seppo Hämäläinen , Antti Lappeteläinen
发明人： Seppo Hämäläinen , Antti Lappeteläinen
IPC分类号： H04B7/00
CPC分类号： H04W52/267 , H04W52/44 , H04W52/60
摘要： 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.
摘要翻译：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他原因，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。

13. 发明授权

US06701130B1 Timing method and arrangement for performing preparatory measurements for interfrequency handover 有权
标题翻译：用于进行接口切换的准备测量的定时方法和装置
公开(公告)号：US06701130B1
公开(公告)日：2004-03-02
申请号：US09694237
申请日：2000-10-23
申请人： Seppo Hämäläinen , Jussi Numminen
发明人： Seppo Hämäläinen , Jussi Numminen
IPC分类号： H04B1700
CPC分类号： H04W36/0083
摘要： A method and an arrangement are provided for performing a transition from a continuous communication mode (601, 701, 801) into a combined slotted communication mode and measurement mode (602, 802, 803) in a mobile station (402) of a cellular radio system. A set of criteria is provided that are to be observed during the continuous communication mode (601, 701, 801). It is observed, whether at least one of said criteria is fulfilled during the continuous communication mode (601, 701, 801). As a response to the fulfilment of at least one of said criteria during the continuous communication mode, the operation of the mobile station (402) is changed into the combined slotted communication mode and measurement mode (602, 802, 803).
摘要翻译：提供了一种方法和装置，用于执行从连续通信模式（601,701,801）到蜂窝无线电的移动台（402）中的组合时隙通信模式和测量模式（602,802,803）的转换系统。提供了在连续通信模式（601,701,801）期间观察到的一组标准。观察到，在连续通信模式（601,701,801）期间是否满足所述准则中的至少一个。作为在连续通信模式期间实现至少一个所述准则的响应，移动站（402）的操作被改变为组合的时隙通信模式和测量模式（602,802,803）。

14. 发明授权

US06567393B2 Dynamic reselection of CDMA spreading codes 失效
标题翻译： CDMA扩频码的动态重选
公开(公告)号：US06567393B2
公开(公告)日：2003-05-20
申请号：US09794934
申请日：2001-02-27
申请人： Seppo Hämäläinen , Jussi Vepsäläinen
发明人： Seppo Hämäläinen , Jussi Vepsäläinen
IPC分类号： H04J1100
CPC分类号： H04W36/06 , H04J13/004 , H04J13/18 , H04W72/02 , H04W88/08
摘要： A CDMA system transmits from a base station to a plurality of mobile stations or from mobile station to base station on a shared frequency band, each mobile station's data being spread by a different spreading code chosen from a set of orthogonal codes. Each receiver in base station or mobile station correlates for its intended data by despreading the signal using its particular one of the orthogonal codes. Under certain transmission delays, the effects of orthogonality may diminish and another mobile station's signal may cross-correlate with a mobile station's signal. If not all of the orthogonal codes are in use, the present invention determines another selection of orthogonal codes that yields lower cross-correlation under current delay conditions.
摘要翻译： CDMA系统从基站向多个移动站或从共享频带的移动台向基站发送，每个移动台的数据由从一组正交码中选择的不同的扩展码进行扩展。基站或移动站中的每个接收机通过使用其特定一个正交码解扩信号来使其预期数据相关。在某些传输延迟下，正交性的影响可能会减弱，另一个移动台的信号可能会与移动台的信号相互关联。如果不是全部使用正交码，则本发明确定在当前延迟条件下产生较低互相关的正交码的另一选择。

15. 发明授权

US06456847B1 Timing of handover 有权
标题翻译：交接时间
公开(公告)号：US06456847B1
公开(公告)日：2002-09-24
申请号：US09457918
申请日：1999-12-09
申请人： Harri Lilja , Seppo Hämäläinen , Kari Pehkonen
发明人： Harri Lilja , Seppo Hämäläinen , Kari Pehkonen
IPC分类号： H04Q720
CPC分类号： H04W36/06
摘要： The invention relates to a radio system and a method of timing an interfrequency handover in a WCDMA cellular radio system where data transmission between a terminal equipment and a base station employs several adjacent alternative frequency bands, and which comprises several different base stations the coverage areas of which overlap at least partly, the base stations utilizing frequency band groups that differ from one another and that are situated next to one another in the frequency range, in which system a terminal equipment communicates with a first base station on a first frequency band and measures the strength of a first signal it has received from the base station, and wherein the terminal equipment measures the strength of a second signal transmitted by a second base station on a second, adjacent frequency band. In order to perform a handover at a correct moment, the terminal equipment compares the measurement results of the first and the second signal, and if the second signal exceeds the first signal by a given threshold value, the terminal equipment signals a handover request to the first base station.
摘要翻译：本发明涉及无线电系统和定时在WCDMA蜂窝无线电系统中定时切换的方法，其中终端设备和基站之间的数据传输采用几个相邻的替代频带，并且其包括几个不同的基站，覆盖区域其至少部分地与所述基站利用彼此不同并且在频率范围内彼此相邻的频带组，基站在终端设备与第一频带上的第一基站进行通信，并且测量其从基站接收到的第一信号的强度，并且其中终端设备测量由第二基站在第二相邻频带上发送的第二信号的强度。为了在正确的时刻执行切换，终端设备比较第一和第二信号的测量结果，并且如果第二信号超过给定阈值的第一信号，则终端设备向切换请求发信号第一基站。

16. 发明授权

US06363252B1 Advanced method for executing handover 失效
标题翻译：执行切换的高级方法
公开(公告)号：US06363252B1
公开(公告)日：2002-03-26
申请号：US09153981
申请日：1998-09-16
申请人： Seppo Hämäläinen , Oscar Salonaho , Niina Laaksonen , Antti Lappeteläinen
发明人： Seppo Hämäläinen , Oscar Salonaho , Niina Laaksonen , Antti Lappeteläinen
IPC分类号： H04Q720
CPC分类号： H04W36/30 , H04W36/20
摘要： A cellular radio system comprises base stations and mobile stations. In order to execute handover, there is chosen a group of potential new base stations and estimated the carrier to interference ratio that each potential new base station included in said group could offer. The carrier to interference ratio can be estimated separately for real-time and for non-real-time connections and/or for uplink and downlink connections.
摘要翻译：蜂窝无线电系统包括基站和移动台。为了执行切换，选择一组潜在的新基站，并估计所述组中包括的每个潜在的新基站可以提供的载波干扰比。载波干扰比可以单独估计用于实时和非实时连接和/或上行链路和下行链路连接。

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