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    • 1. 发明申请
    • DECONVOLUTION SEARCHER FOR WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统解决方案搜索器
    • WO2005062699A3
    • 2006-08-17
    • PCT/IB2004004132
    • 2004-12-14
    • NOKIA CORPNOKIA INCTRAN JEAN-MARIE
    • TRAN JEAN-MARIE
    • H04B1/69
    • H04B1/7113H04B1/7117
    • Disclosed is a method, an apparatus and a mobile station embodiment to receive a CDMA signal from a radio channel. The method includes inputting a CDMA signal received through the radio channel to a searcher (200) and processing the received signal in the searcher to obtain a multi-path profile of the radio channel. Processing includes at least partially removing an effect of at least one of a transmit and a receive filter on the multi-path profile. In one embodiment at least partially removing the effect of at least one of the transmit and receive filter on the multi-path profile involves passing the received CDMA signal through an N-tap Finite Impulse Response filter (206A) having a filter characteristic that approximates an inverted amplitude response of the at least one of the transmit and a receive filter, while in another embodiment software external to the searcher is used to process the searcher output data.
    • 公开了一种从无线电信道接收CDMA信号的方法,装置和移动台实施例。 该方法包括将通过无线电信道接收的CDMA信号输入到搜索器(200)并处理搜索器中的接收信号以获得无线电信道的多径分布。 处理包括至少部分地去除多路径简档上的发送和接收过滤器中的至少一个的影响。 在一个实施例中,至少部分地去除多径分布图上的发射和接收滤波器中的至少一个的影响涉及将接收的CDMA信号通过具有滤波器特性的N抽头有限脉冲响应滤波器(206A),该滤波器特性近似于 发射和接收滤波器中的至少一个的反向振幅响应,而在另一个实施例中,搜索器外部的软件被用于处理搜索器输出数据。
    • 3. 发明申请
    • APPARATUS AND METHOD FOR CELL SELECTION IN HIGH RATE PACKET DATA SYSTEMS
    • 高速分组数据系统中细胞选择的装置和方法
    • WO2005034530A3
    • 2006-10-05
    • PCT/IB2004003168
    • 2004-09-29
    • NOKIA CORPNOKIA INCVISHWANATH T GTRAN JEAN-MARIE
    • VISHWANATH T GTRAN JEAN-MARIE
    • H04B1/18H04B1/02H04B1/707H04B17/40H04W36/08H04W36/18
    • H04W48/20H04B1/7117H04B2201/70702H04W48/16
    • A method is disclosed to operate a spread spectrum receiver with an active set of base stations. The method includes monitoring a current serving base station of the active set with a Set Searcher and simultaneously monitoring individual ones of remaining base stations of the active set with a C/I (carrier-to-interference ratio) Searcher. One of the remaining base stations is designated as a Candidate base station for potentially replacing the current serving base station and is monitored continuously by a first set of fingers of the C/I Searcher. The other remaining ones of the base stations of the active set are monitored in a time multiplexed manner by a second set of fingers of the C/I Searcher. The method further includes detecting that one of the remaining ones of the base stations of the active set is received with a stronger signal than the Candidate base station, and designating the detected one of the base stations as a new Candidate base station, and beginning the continuous monitoring of the new Candidate base station while monitoring the other remaining ones of the base stations of the active set, including the previous Candidate base station, in the time multiplexed manner. A spread spectrum receiver that operates in accordance with the method is also disclosed.
    • 公开了一种利用有源基站组来操作扩频接收机的方法。 该方法包括利用集合搜索器监视活动集的当前服务基站,并用C / I(载波干扰比)搜索器同时监视活动集合中的剩余基站中的各个基站。 其余的基站之一被指定为候选基站,用于潜在地替换当前的服务基站,并由C / I搜索器的第一组指针连续监视。 通过C / I搜索器的第二组手指以时间复用的方式监视活动集合中的其余剩余的基站。 所述方法还包括检测所述有源集合中的剩余基站中的一个基站是否以比所述候选基站更强的信号被接收,并且将所检测的基站之一指定为新的候选基站,并且开始 连续监视新的候选基站,同时以时间复用方式监视包括先前的候选基站的活动集的其余剩余基站。 还公开了根据该方法操作的扩频接收机。
    • 5. 发明申请
    • FORWARD LINK CLOSED LOOP POWER CONTROL BASED ON MOBILE STATION MOBILITY
    • 基于移动站移动的前向链路闭合环路功率控制
    • WO0033479A9
    • 2001-05-10
    • PCT/US9928518
    • 1999-12-02
    • NOKIA MOBILE PHONES LTDTRAN JEAN MARIEKANSAKOSKI ANTTI
    • TRAN JEAN-MARIEKANSAKOSKI ANTTI
    • H04B7/005H04B7/01
    • H04W52/286H04B7/01H04W52/08H04W52/10H04W52/12
    • A wireless telecommunications mobile station (10), which is bidirectionally coupled to a base station (30) through a communication channel (29), includes a device (64) for receiving signals over the communication channel from the base station, power control circuitry (18a) for selectively deriving power control commands, and a device (74) for transmitting the selectively derived power control commands to the base station. The power control circuitry of the mobile station provides, in cooperation with power control circuitry of the base station, closed loop power control to the communication channel. The power control circuitry includes circuitry (70, 72) for selectively deriving power control commands based on one of first power control commands or second power control commands in response to a determined mobility of the mobile station. The determined mobility can be indicative of a Doppler shift of carrier transmitted from the base station, or a velocity derived from the Doppler shift.
    • 通过通信信道(29)双向耦合到基站(30)的无线电信移动台(10)包括用于通过通信信道从基站接收信号的设备(64),功率控制电路 18a),用于选择性地导出功率控制命令;以及用于将选择性地导出的功率控制命令发送到基站的设备(74)。 移动台的功率控制电路与基站的功率控制电路协作提供对通信信道的闭环功率控制。 功率控制电路包括电路(70,72),用于响应于所确定的移动站的移动性,基于第一功率控制命令或第二功率控制命令之一来选择性地导出功率控制命令。 确定的移动性可以表示从基站发送的载波的多普勒频移,或者是从多普勒频移导出的速度。
    • 6. 发明申请
    • IMPROVED RATE DETERMINATION TECHNIQUE UTILISING MODIFIED CUMULATIVE METRICS
    • 改进的计量测量方法改进的速率测定技术
    • WO0033500A3
    • 2000-08-10
    • PCT/US9928516
    • 1999-12-02
    • NOKIA MOBILE PHONES LTDTRAN JEAN MARIE
    • TRAN JEAN-MARIE
    • H04L1/00H04L25/02H04L1/08
    • H04L1/0046H04L1/0054H04L1/08H04L25/0262
    • A method and apparatus, such as a radiotelephone, operates so as to (a) decode a signal received from a communications channel to extract data therefrom, the data being received at one of n rates and the signal being decoded at each of the n rates for generating n Cumulative Metrics; (b) defines a matrix M composed on n mean vectors derived from the n Cumulative Metrics; (c) orthogonalizes the n rates by inverting the matrix M and multiplying with an observable vector of Cumulative Metrics to obtain a discriminant vector; and (d) determining the correct rate from the discriminant vector as the row number having a maximum value. One or both of a fixed or an adaptive scaling can be applied to the soft data prior to Viterbi decoding, and the resulting Cumulative Metrics can be scaled again to undo the first scaling, prior to operation of the rate determination technique.
    • 诸如无线电话的方法和装置的操作是(a)解码从通信信道接收的信号以从其中提取数据,以n个速率之一接收数据,并且以n个速率中的每一个速率解码信号 用于生成n个累积指标; (b)定义由从n个累积指标导出的n个平均向量组成的矩阵M; (c)通过反转矩阵M并与累积度量的可观测向量相乘以使n个速率正交化,以获得判别向量; 和(d)从判别向量确定作为具有最大值的行号的正确率。 在维特比解码之前,可以将固定或自适应缩放中的一个或两个应用于软数据,并且在速率确定技术的操作之前,可以再次缩放所得到的累积度量以撤销第一缩放。
    • 7. 发明申请
    • APPARATUS, AND METHOD FOR SELECTING POWER LEVEL IN A RADIO COMMUNICATION SYSTEM
    • 用于选择无线电通信系统中的功率电平的装置和方法
    • WO03019953A3
    • 2003-10-09
    • PCT/IB0203459
    • 2002-08-27
    • NOKIA CORPNOKIA INC
    • KENNEY THOMAS JTRAN JEAN-MARIE
    • H04B7/005H04W52/14H04W52/26H04W52/34H04Q7/20
    • H04W52/267H04W52/143H04W52/343
    • Apparatus (42), and an associated method, for effectuating power control in a radio communication system (10), such as an IS-95/IS-2000 system which deploys 1xEV-DO technology. At a mobile station, a channel indicia measurer (44) measures channel conditions upon a radio link (14). Responsive thereto, a data rate selector (46) selects a data rate at which subsequent data is to be communicated to the mobile station (12). The selection is returned to the network part of the communication system. A selector (56) selects the power level at which to communicate the subsequent data to the mobile station responsive to the requested data rate. The requested data rate is used as a metric by which to select the power level at which to communicate the subsequent data to the mobile station (12).
    • 一种用于实现无线电通信系统(10)(诸如部署1xEV-DO技术的IS-95 / IS-2000系统)中的功率控制的装置(42)和相关方法。 在移动站处,信道标记测量器(44)测量无线电链路(14)上的信道状况。 响应于此,数据速率选择器(46)选择要将后续数据传送到移动台(12)的数据速率。 该选择被返回到通信系统的网络部分。 响应于所请求的数据速率,选择器(56)选择向移动台传送后续数据的功率电平。 所请求的数据速率被用作用于选择将后续数据传送到移动台(12)的功率电平的度量。