公开(公告)号：WO2007024963A2

公开(公告)日：2007-03-01

申请号：PCT/US2006032937

申请日：2006-08-22

Applicant: QUALCOMM INC ,  SMEE JOHN EDWARD ,  HOU JILEI ,  PADOVANI ROBERTO ,  BLACK PETER JOHN ,  EASTON KENNETH DAVID

Inventor： SMEE JOHN EDWARD ,  HOU JILEI ,  PADOVANI ROBERTO ,  BLACK PETER JOHN ,  EASTON KENNETH DAVID

IPC: H04W52/12

CPC classification number: H04B1/7107 ,  H04W52/12

Abstract: A method and system for reverse link interference cancellation. One method comprises demodulating and decoding at least one signal sent from at least one access terminal and received by a first base station, sending demodulated, decoded information of the signal to a second base station, reconstructing the signal at the second base station, and subtracting the reconstructed signal from a buffer at the second base station.

Abstract translation: 一种用于反向链路干扰消除的方法和系统。 一种方法包括对从至少一个接入终端发送并由第一基站接收的至少一个信号进行解调和解码，向第二基站发送解调后的解码的信号信息，重构第二基站的信号，以及减去 来自第二基站的缓冲器的重建信号。

公开(公告)号：WO0156172A3

公开(公告)日：2002-02-21

申请号：PCT/US0103243

申请日：2001-01-31

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR

IPC: H03K3/84 ,  H04B1/707 ,  H04J13/00 ,  H04J13/10 ,  H04Q7/38 ,  H04B7/26

CPC classification number: H04J13/10 ,  H03K3/84 ,  H04B1/707 ,  H04J13/0022

Abstract: Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. By using uncorrelated PN sequences, the likehood of detecting a pilot signal from an undesired system is reduced or minimized, and the mean time to acquisition of the pilot signal from the desired system is improved. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set. The PN sequences for the first set can be generated based on the characteristic polynomials defined by IS-95-A, and the PN sequences for the second set can be the reverse of the PN sequences for the first set.

Abstract translation: 在扩展频谱环境中改进采集过程的技术。 来自不同CDMA系统的信号用不同的PN序列集合扩展，每组中的PN序列与其他集合中的PN序列不相关。 通过使用不相关的PN序列，检测来自不需要的系统的导频信号的相似性被减少或最小化，并且提高了从所需系统获取导频信号的平均时间。 移动台可以通过用对应于所获取的特定信号的第一假设的第一组PN序列处理接收到的信号来尝试获取导频信号。 如果导频信号的获取失败，则选择对应于第二假设的第二组PN序列来处理接收到的信号。 第二组中的PN序列与第一组中的PN序列不相关。 可以基于由IS-95-A定义的特征多项式来生成第一组的PN序列，并且第二组的PN序列可以是第一组的PN序列的相反。

公开(公告)号：WO9943101A9

公开(公告)日：1999-11-04

申请号：PCT/US9903683

申请日：1999-02-19

Applicant: QUALCOMM INC ,  BENDER PAUL E ,  PADOVANI ROBERTO

Inventor： BENDER PAUL E ,  PADOVANI ROBERTO

IPC: H04B1/04 ,  H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04W36/08 ,  H04W36/18 ,  H04W36/30 ,  H04W52/00 ,  H04W52/24 ,  H04W52/40 ,  H04W52/44 ,  H04W52/58 ,  H04W52/60 ,  H04W56/00 ,  H04W68/00 ,  H04B17/00

CPC classification number: H04L1/0071 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0059 ,  H04L1/0068 ,  H04L1/208 ,  H04W36/18 ,  H04W36/30 ,  H04W52/24 ,  H04W52/241 ,  H04W52/40 ,  H04W52/44 ,  H04W52/58 ,  H04W52/60 ,  H04W56/00 ,  H04W68/00

Abstract: A system and method is taught for controlling the power level of transmissions within a communication system having a base station, a mobile station, a communication channel, and a pilot channel. The mobile station determines a signal strength value according to a communication signal received by way of the communication channel. A pilot channel signal is determined according to a pilot signal transmitted by way of the pilot channel. The signal to noise ratio of the communication signal is determined according to the determined signal strength value and the pilot channel signal. The power level of a transmission is controlled according to the signal to noise ratio. The noise level in a communication channel within the communication system is estimated. The pilot channel signal includes pilot energy and pilot noise components. The pilot energy component is removed to provide a remaining pilot signal. Communication system operations are controlled according to the remaining pilot signal. The power levels of transmissions are controlled by determining the signal to noise ratio of a signal within the communication channel and determining a difference signal. The difference signal is formed by determining the difference between determined and desired signal to noise ratios. The difference signal is transmitted between the base station and the mobile station. The pilot channel has at least one frame and the power control signal is inserted into the frame. Thus, information representing the strength of the communication signal is transmitted to the base by way of the pilot channel within the frame. The pilot channel can have two information frames for transmitting the power control signal a plurality of times.

Abstract translation: 教导了一种用于控制具有基站，移动台，通信信道和导频信道的通信系统内的传输功率电平的系统和方法。 移动台根据通过通信信道接收到的通信信号来确定信号强度值。 根据通过导频信道发送的导频信号来确定导频信道信号。 通信信号的信噪比根据确定的信号强度值和导频信道信号来确定。 传输的功率电平根据信噪比进行控制。 估计通信系统内的通信信道中的噪声电平。 导频信道信号包括导频能量和导频噪声分量。 导频能量分量被去除以提供剩余的导频信号。 通信系统操作根据剩余的导频信号进行控制。 通过确定通信信道内的信号的信噪比并确定差分信号来控制传输的功率电平。 通过确定确定的和期望的信噪比之间的差异来形成差分信号。 差分信号在基站和移动台之间传输。 导频信道具有至少一个帧，并且功率控制信号被插入到帧中。 因此，表示通信信号的强度的信息通过帧内的导频信道发送到基站。 导频信道可以具有用于多次发送功率控制信号的两个信息帧。

公开(公告)号：WO9853621A3

公开(公告)日：1999-02-25

申请号：PCT/US9810180

申请日：1998-05-19

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO

IPC: H04W24/00 ,  H04W24/02 ,  H04Q7/00

CPC classification number: H04W24/02 ,  H04W24/00

Abstract: A method and apparatus for optimizing system parameters in a cellular communication network. Pilot strength measurement messages (PSMMs) that are received by base stations (4a-4s) of the network to be optimized are saved in a database. The database accumulates the raw data contained in the pilot strength measurement messages. After a sufficient amount of data has been collected, a report generator (23) compiles a statistics report for each base station based on the raw PSMM data. The present invention then provides a method for applying the information in the report in order to optimize the network parameters of the cellular system. The neighbor list which is transmitted on the paging or traffic channel is revised in accordance with the compiled statistics. The antenna tilt of base stations (4a-4s) is adjusted in accordance with the compiled statistics.

公开(公告)号：WO0203721A3

公开(公告)日：2002-09-06

申请号：PCT/US0141050

申请日：2001-06-18

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO ,  BENDER PAUL E ,  JALALI AHMAD ,  JUDSON BRUCE ,  WHEATLEY CHARLES E III

IPC: H04J15/00 ,  H04W16/02 ,  H04W16/12 ,  H04Q7/36 ,  H04B7/26

CPC classification number: H04W16/12 ,  H04W16/02

Abstract: In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.

Abstract translation: 在能够进行可变速率传输的CDMA数据通信系统中，利用波束切换技术减少了由基站向小区内的用户站以及相邻小区的传输引起的平均干扰。 基站利用多个发射天线，每个发射天线以受控的幅度和相位发射信号，以形成对应于扇区划分的发射信号。 数据和参考信号沿着根据固定时隙交替的扇区划分波束传输，以便通过最大化用户站处测量的载波干扰比（C / I）来增加系统容量和数据速率。

公开(公告)号：WO0033475A3

公开(公告)日：2002-01-10

申请号：PCT/US9928624

申请日：1999-12-02

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO

IPC: H04B7/005 ,  H04B7/26 ,  H04W52/22 ,  H04W52/28 ,  H04W52/34 ,  H04W52/36

CPC classification number: H04W52/283 ,  H04W52/221 ,  H04W52/343 ,  H04W52/36

Abstract: In a wireless communication system, in order to determine a level of loading, the system enters a period of silence during which a designated remote unit (42) continues to transmit but other remote unit transmissions are interrupted. The base station (40) and designated remote unit (42) perform closed loop power control on a reverse link signal received from the designated remote. A first series of power control commands accumulated and a first corresponding transmit gain adjustment value is stored. Normal operation is resumed. Once again, the base station (40) and designated remote unit perform closed loop power control on the reverse link signal received from the designated remote unit (42). A second series of power control commands are accumulated and a second corresponding transmit gain adjustment value is stored. A level of loading is determined based upon the first and second transmit gain adjustment values.

Abstract translation: 在无线通信系统中，为了确定加载水平，系统进入静默期间，在此期间，指定的远程单元（42）继续发送，而其他远程单元传输被中断。 基站（40）和指定的远程单元（42）对从指定的远程接收的反向链路信号执行闭环功率控制。 存储第一系列功率控制命令并存储第一对应的发射增益调整值。 恢复正常操作。 再次，基站（40）和指定的远程单元对从指定的远程单元（42）接收的反向链路信号执行闭环功率控制。 累积第二系列功率控制命令，并存储第二对应的发射增益调整值。 基于第一和第二发射增益调整值来确定负载水平。

公开(公告)号：WO9833288A3

公开(公告)日：1998-11-12

申请号：PCT/US9801058

申请日：1998-01-27

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO ,  QUICK ROY F

IPC: H04W36/18 ,  H04B7/26 ,  H04W48/20 ,  H04J

CPC classification number: H04W36/18 ,  H04W48/20

Abstract: A method and apparatus for providing soft hand-off in a mobile communication system. In current systems, members of an active set of base stations (4, 4A, 4B, 4C) are determined by comparing measured pilot energy with fixed thresholds. The value of providing a redundant communication link to a mobile station (2) primarily depends on the energy of other signals being provided to the mobile station (2). In the present invention, the signal strength of each signal transmitted by other base stations (4, 4A, 4B, 4C) in communication with a mobile station (2) is considered when determining whether to add a base station to the set of base stations (4, 4A, 4B, 4C) in communication with the remote station. A base station is added only if the signal received from that base station provides sufficient added value to justify the impact on system capacity.

公开(公告)号：WO9744984A3

公开(公告)日：1997-12-31

申请号：PCT/US9709305

申请日：1997-05-23

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  MUNSINGER DAVID B ,  PADOVANI ROBERTO ,  ZIV NOAM A ,  KARMI GADI ,  GILHOUSEN KLEIN S

IPC: H04W24/02 ,  H04W36/14 ,  H04Q7/38 ,  H04B7/26

CPC classification number: H04W36/30 ,  H04W36/0083

Abstract: In a communications network, a network user communicates through a remote unit (30) with another user via at least one base station (100). The communications network includes a first mobile switching center (MSC-I) which controls communications through a first set of base stations including a first base station (100). The remote unit (30) stores a list of active base stations which has an entry corresponding to each base station with which active communication is established. The first base station (100) has an entry on the list of active base stations. The first base station (100) measures a round trip delay of an active communication signal between the first base station (100) and the remote unit (30). A handoff of the active communication signal is initiated if the round trip delay of the active communication exceeds a threshold if the first base station (100) is designated as a reference base station. Alternatively, the remote unit (30) also stores a list of candidate base stations comprising an entry corresponding to each base station through which active communication may be possible but is not established. A handoff of the active communication signal is initiated if the list of candidate base stations comprises an entry corresponding to a triggering pilot signal.

公开(公告)号：WO9515038A3

公开(公告)日：1995-06-15

申请号：PCT/US9413595

申请日：1994-11-22

Applicant: QUALCOMM INC

Inventor： WHEATLEY CHARLES E III ,  PADOVANI ROBERTO ,  ZEHAVI EPHRAIM

IPC: H04J13/04 ,  H03M13/23 ,  H04B20060101 ,  H04B7/005 ,  H04B7/216 ,  H04B7/24 ,  H04L1/00 ,  H04L1/08

CPC classification number: H04L1/0059 ,  H03M13/23 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0025 ,  H04L1/0027 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/0071 ,  H04L1/08 ,  H04W52/20 ,  H04W52/267

Abstract: The process of the present invention enables a communication link to have a higher data rate input signal while maintaining a constant data rate output signal. The method first convolutionally encodes the input data signal to produce a plurality of convolutionally encoded signals. Each of the convolutionally encoded signals are comprised of a plurality of data symbols. Each data symbol is repeated a predetermined number of times to produce a code repetition data sequence at a predetermined and fixed rate. The data sequence is then punctured such that symbols in predetermined locations of the data sequence are deleted thus generating a data sequence at a predetermined and fixed rate which is lower than that of the original data sequence. The encoded signals with the repeated data symbols are multiplexed to produce a data sequence.

Abstract translation: 本发明的功率控制过程使得移动无线电话机能够在所需的功率输出上持续更新基站。 基站以特定的速率向移动台发送帧。 如果移动台正确地接收并解码帧，则在下一帧中设置要发送到基站的功率控制位。 基于接收到的功率控制比特的错误率，基站确定是否增加或减少发送功率。

公开(公告)号：PT103941B

公开(公告)日：2015-06-19

申请号：PT10394198

申请日：1998-11-03

Applicant: QUALCOMM INC UMA SOCIEDADE ORGANIZADA E EXISTINDO SEGUNDO AS LEIS DO ESTADO DE DELAWARE E U A

Inventor： HINDERLING JURG K ,  PADOVANI ROBERTO ,  BLACK PETER J ,  BENDER PAUL E ,  WHEATLEY CHARLES E III ,  GROB MATTHEW S ,  NAGABHUSHANA T SINDHUSHAYANA

IPC: H04L12/70 ,  H04L1/00 ,  H04W99/00

Abstract: NUM SISTEMA DE COMUNICAÇÃO DE DADOS, CAPAZ DE TRANSMISSÃO COM VELOCIDADE DE TRANSMISSÃO VARIADA, A TRANSMISSÃO DE DADOS POR PACOTES A VELOCIDADE ELEVADA MELHORA A UTILIZAÇÃO DA VIA DE LIGAÇÃO DE IDA E DIMINUI O ATRASO DA TRANSMISSÃO. A TRANSMISSÃO DOS DADOS NA VIA DE LIGAÇÃO DE IDA É FEITA PELO PROCESSO MULTIPLEX POR DIVISÃO DO TEMPO E A ESTAÇÃO DE BASE EMITE COM A VELOCIDADE DE TRANSMISSÃO DE DADOS MAIS ELEVADA SUPORTADA PELA VIA DE LIGAÇÃO DE IDA, EM CADA FAIXA DE TEMPO (SLOT) , PARA UMA ESTAÇÃO MÓVEL, O SISTEMA DE COMUNICAÇÃO TRANSMITE PERIODICAMENTE UM MENSAGEM DE PEDIDO DE DADOS (MENSAGENS DRC) E É AUXILIADO POR PROGRAMAS DE COMPUTADOR INCLUSIVE PARA TAXA DE ERRO NOS BITS.