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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。
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公开(公告)号：US06438356B1
公开(公告)日：2002-08-20
申请号：US09974828
申请日：2001-10-12
申请人： Harri Lilja , Seppo Hämäläinen
发明人： Harri Lilja , Seppo Hämäläinen
IPC分类号： H04B100
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US08543153B2
公开(公告)日：2013-09-24
申请号：US12854575
申请日：2010-08-11
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。
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公开(公告)号：US06198928B1
公开(公告)日：2001-03-06
申请号：US09043012
申请日：1998-03-02
IPC分类号： H04Q738
CPC分类号： H04W36/36
摘要： A cellular radio system and a handover method in a cellular radio system is provided. The cellular radio system includes a subscriber terminal and a base station. In the system, the subscriber terminal maintains and continuously updates an active set of base stations. One or several base stations belonging to the active set has a connection or connection set-up facilities to the subscriber terminal. The subscriber terminal controls the downlink transmission of one or several base stations of the active set by switching the transmission of the base station on or off. This method provides a fast soft handover similar to a hard handover.
摘要翻译： 提供了蜂窝无线电系统中的蜂窝无线电系统和切换方法。 蜂窝无线电系统包括用户终端和基站。 在该系统中，用户终端维护并持续地更新一组活跃的基站。 属于活动集的一个或几个基站具有到用户终端的连接或连接建立设施。 用户终端通过切换基站的传输开启或关闭来控制活动集的一个或多个基站的下行链路传输。 该方法提供类似于硬切换的快速软切换。
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公开(公告)号：US07206332B2
公开(公告)日：2007-04-17
申请号：US10184022
申请日：2002-06-25
申请人： Raymond Kwan , Eeva Poutiainen , Seppo Hämäläinen , Esa Malkamäki
发明人： Raymond Kwan , Eeva Poutiainen , Seppo Hämäläinen , Esa Malkamäki
CPC分类号： H04L1/0016 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0025 , H04L1/0066 , H04L1/0071 , H04L1/16 , H04L1/1819 , H04L1/20 , Y02D50/10
摘要： A two-dimensional optimization between adaptive modulation and coding (AMC) and multi-code transmission targets the best bit rate at which a highest useable modulation and coding scheme (MCS) achieves a maximum allowed number of channelization codes or less. The optimized MCS and number of channelization codes at a best bit rate is communicated from a transmitter to a receiver, possibly also with power information for instance using a transport format combination indicator (TFCI). A user equipment may play the role of carrying out the optimization and signaling the result to the Node B or may instead receive the result as carried out by the Node B or RNC in response to a radio link quality measurement sent from the UE to the Node B.
摘要翻译： 自适应调制和编码（AMC）和多码传输之间的二维优化目标是最高可用调制和编码方案（MCS）达到最大允许数量的信道化码或更少的最佳比特率。 优化的MCS和以最佳比特率的信道化码的数量从发射机传送到接收机，可能也可以使用例如使用传输格式组合指示符（TFCI）的功率信息。 用户设备可以起到进行优化的作用，并将结果发送给节点B，或者可以接收由节点B或RNC响应于从UE发送到节点的无线电链路质量测量而执行的结果 B.
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公开(公告)号：US06788943B1
公开(公告)日：2004-09-07
申请号：US09154100
申请日：1998-09-16
IPC分类号： H04Q720
CPC分类号： H04W16/04 , H04W28/26 , H04W72/10 , H04W84/042 , H04W88/08
摘要： The base station of a cellular radio system is in radio communication with the mobile stations of the cellular radio system by using mutually essentially orthogonal channels. In order to control the use of the channels, said channels are divided into groups with different priorities, so that the base station uses primarily the channel group with the highest priority. Channels belonging to different priority groups are put to use in a selective manner as a response to the loading of the base station.
摘要翻译： 蜂窝无线电系统的基站通过使用相互基本上正交的信道与蜂窝无线电系统的移动台进行无线电通信。 为了控制信道的使用，所述信道被划分为具有不同优先级的组，使得基站主要使用具有最高优先级的信道组。 作为对基站的加载的响应，属于不同优先级组的信道被选择性地使用。
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公开(公告)号：US06289217B1
公开(公告)日：2001-09-11
申请号：US09153723
申请日：1998-09-15
IPC分类号： H04Q720
CPC分类号： H04L1/0071 , H04L1/0001 , H04L1/0003 , H04L1/0007 , H04L1/0015 , H04L1/1819 , H04L1/1845 , H04W52/24 , H04W52/50 , H04W52/54
摘要： A radio connection is adapted to an environment changing over the connection in a cellular radio system where the radio traffic between the base station and the mobile stations is arranged on a multiple access principle, according to a given frame structure (402). For a given radio connection between the transmitting device and the receiving device, there is reserved a given data transmission capacity in said frame structure. The receiving device measures the connection quality (103) during the connection, and on the bases of the measured connection quality, the size of the data transmission capacity (104, 110) reserved for said connection in said frame structure is changed.
摘要翻译： 根据给定的帧结构（402），无线电连接适用于通过蜂窝无线电系统中的连接改变的环境，其中基站和移动站之间的无线电业务被布置在多址原理上。 对于发送设备和接收设备之间的给定无线电连接，在所述帧结构中保留给定的数据传输容量。 接收装置在连接期间测量连接质量（103），并且基于测量的连接质量，改变为所述帧结构中为所述连接预留的数据传输容量（104,110）的大小。
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公开(公告)号：US07263077B1
公开(公告)日：2007-08-28
申请号：US09155231
申请日：1998-01-21
IPC分类号： H04B7/26
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 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.
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。
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9.发明授权公开(公告)号：US07133434B1
公开(公告)日：2006-11-07
申请号：US09424623
申请日：1998-05-29
申请人： Antti Toskala , Harri Holma , Seppo Hämäläinen
发明人： Antti Toskala , Harri Holma , Seppo Hämäläinen
CPC分类号： H04W52/42 , H04B7/0817
摘要： 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.
摘要翻译： 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。
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10.发明授权Method for determining whether to perform link adaptation in WCDMA communications 有权用于确定是否在WCDMA通信中执行链路自适应的方法公开(公告)号：US07027420B2
公开(公告)日：2006-04-11
申请号：US09912227
申请日：2001-07-24
申请人： Seppo Hämäläinen
发明人： Seppo Hämäläinen
IPC分类号： H04B7/216
CPC分类号： H04L1/0015 , H04L1/0009 , H04L1/0034 , H04L1/16 , H04L1/20 , H04W52/241
摘要： 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.
摘要翻译： 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。
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