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公开(公告)号：JP2009022015A
公开(公告)日：2009-01-29
申请号：JP2008189130
申请日：2008-07-22
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： LUNDBY STEIN A , TIEDEMANN EDWARD G JR , HOLTZMAN JACK M , TERASAWA DAISUKE
IPC: H04W52/30 , H04B1/04 , H04B1/707 , H04B1/7097 , H04B7/005
CPC classification number: H04B1/707 , H04B1/7097 , H04B2201/70701 , H04B2201/70706 , H04B2201/70709 , H04W52/30
Abstract: PROBLEM TO BE SOLVED: To provide a time offset technique for increasing the capacity of a CDMA system.
SOLUTION: In a method for limiting a peak transmission power region in a CDMA communication system by transmitting a first communication signal having a first high transmission power region and transmitting a second communication signal having a second high transmission power region, the first and second communication signals are time offset to prevent the first and second high transmission power regions from occurring simultaneously. Time shifting of only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmission power regions. The time offset can be selected to align one of the first and second high transmission power regions with one of the first and second low transmission power regions. The total transmission power signal can be determined and the time offset can be selected to minimize the peak level of the total transmission power signal.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供用于增加CDMA系统的容量的时间偏移技术。 解决方案：在通过发送具有第一高发射功率区域的第一通信信号并发送具有第二高发射功率区域的第二通信信号来限制CDMA通信系统中的峰值发射功率区域的方法中，第一和 第二通信信号是时间偏移的，以防止第一和第二高发射功率区域同时发生。 还教导了仅第一和第二通信信号的一部分的时移。 第一和第二通信信号还可以包括相应的第一和第二低发射功率区域。 可以选择时间偏移以使第一和第二高发射功率区域中的一个与第一和第二低发射功率区域中的一个对准。 可以确定总发射功率信号，并且可以选择时间偏移以使总发射功率信号的峰值电平最小化。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2013176123A
公开(公告)日：2013-09-05
申请号：JP2013085870
申请日：2013-04-16
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： TERASAWA DAISUKE , FRANCESCO GRILLI , WILLENEGGER SERGE
CPC classification number: H04W56/0065 , H04B7/2668 , H04W24/08 , H04W36/18 , H04W56/001
Abstract: PROBLEM TO BE SOLVED: To provide a method of correctly soft combining each downlink signal transmitted by each cell involved in a soft handoff operation.SOLUTION: A mobile station 101 is informed of a downlink data frame time offset by transmitting the downlink data frame time offset via an active set update message transmitted from a cell (102 or 103) to the mobile station 101. Once the active set update message is received, the data frame time offset information is provided to a timing block which may determine a data frame boundary of each downlink signal. The timing block adjusts the PN sequence timing corresponding to the downlink signal associated with the data frame time offset such that corresponding data symbols in each data frame are correctly soft combined in a combiner.
Abstract translation: 要解决的问题：提供一种正确软组合由软切换操作涉及的每个小区所发送的每个下行链路信号的方法。解决方案：通过发送下行链路数据帧时间偏移来向移动台101通知下行链路数据帧时间偏移 经由从小区（102或103）发送到移动台101的活动集更新消息。一旦接收到活动集更新消息，则将数据帧时间偏移信息提供给定时块，该定时块可以确定数据帧边界 每个下行链路信号。 定时块调整对应于与数据帧时间偏移相关联的下行链路信号的PN序列定时，使得每个数据帧中的相应数据符号在组合器中被正确地软组合。
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公开(公告)号：JP2009027697A
公开(公告)日：2009-02-05
申请号：JP2008152812
申请日：2008-06-11
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： TERASAWA DAISUKE , GRILLI FRANCESCO , WILLENEGGER SERGE
CPC classification number: H04W56/0065 , H04B7/2668 , H04W24/08 , H04W36/18 , H04W56/001
Abstract: PROBLEM TO BE SOLVED: To make it possible to trust in arrival timing of a symbol from each cell and determine which symbol should be compounded at the time of software hand-off operation.
SOLUTION: After down link data frame time offset is determined, a mobile station 101 is informed about the down link data frame time offset, by transmitting the down link data frame time offset through an active set renewal message, which is transmitted from a cell 102 or a cell 103 to the mobile station 101. Once the active set renewal message is received, the data frame time offset information is fed to a timing block, and thereby data frame border of each down link signal is determined. The timing block adjusts PN sequence timing corresponding to the down link signal in relation to the data frame time offset so that the corresponding data symbol in each data frame can be subjected to software composition correctly in a compositor.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：使得可以信任来自每个小区的符号的到达定时，并确定在软件切换操作时哪个符号应该被复合。 解决方案：确定下行链路数据帧时间偏移后，通过从主动集合更新消息中发送下行链路数据帧时间偏移，向移动台101通知下行链路数据帧时间偏移， 小区102或小区103到移动站101.一旦接收到活动集更新消息，则将数据帧时间偏移信息馈送到定时块，从而确定每个下行链路信号的数据帧边界。 定时块相对于数据帧时间偏移调整与下行链路信号相对应的PN序列定时，使得每个数据帧中的相应数据符号可以在合成器中正确地进行软件组合。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：BRPI0111011B1
公开(公告)日：2016-06-07
申请号：BR0111011
申请日：2001-05-18
Applicant: QUALCOMM INC
Inventor： TERASAWA DAISUKE , GRILLI FRANCESCO , WILLENEGGER SERGE
Abstract: "método e equipamento para soft handoff em um sistema de comunicação cdma". trata-se de um método e um equipamento inéditos e aperfeiçoados, em um sistema de comunicação wcdma (100), para informar uma estação móvel (101) de um deslocamento de tempo de frame de dados de downlink pela determinação do deslocamento de tempo de frame de dados de downlink e pela transmissão do deslocamento de tempo de frame de dados de downlink por meio de uma mensagem de atualização do conjunto ativo transmitida a partir de uma célula (102 ou 103) para uma estação móvel (101). uma vez recebida uma mensagem de atualização do conjunto ativo, as informações referentes ao deslocamento de tempo de frame de dados são enviadas a um bloco de temporização (201), que pode determinar o limite de frame de dados de dada sinal de downlink. o bloco de temporização (201) pode então ajustar a temporização da seqüência pn correspondente ao sinal de downlink relacionado com o deslocamento de tempo de frame de dados, de modo que os símbolos de dados correspondentes em cada frame de dados sejam corretamente combinados de maneira suave em um combinador (210).
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公开(公告)号：DE60330176D1
公开(公告)日：2009-12-31
申请号：DE60330176
申请日：2003-10-24
Applicant: QUALCOMM INC
Inventor： SHIU DA-SHAN , TERASAWA DAISUKE
Abstract: A method and apparatus for determining an operational mode for use in a wireless communication system based on a location, a velocity, or both, of a wireless communication device (WCD) in relation to a wireless network infrastructure is described. The selected mode can be used by various devices within the communication system. Modes that are selected include transmit diversity and site selection diversity.
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Patent Agency Ranking
公开(公告)号：DE60324434D1
公开(公告)日：2008-12-11
申请号：DE60324434
申请日：2003-08-29
Applicant: QUALCOMM INC
Inventor： SENDONARIS ANDREW , SHIU DA-SHAN , PATTERSON DAVID M , SUBRAHMANYA PARVATHANATHAN , TERASAWA DAISUKE
Abstract: A method and apparatus for using information about a mobile terminal's location relative to a base station can improve performance of a communication system. In addition, information about the mobile terminal's velocity relative to the base station may be used to improve performance of the communication system. The location information may be used to estimate a nominal PN offset, and a set of PN offset to use, for processing communication signals. The velocity information may be used to estimate a nominal frequency of the communication signals.
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公开(公告)号：NO325815B1
公开(公告)日：2008-07-21
申请号：NO20010828
申请日：2001-02-19
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , TIEDEMANN JR EDWARD G , HOLTZMAN JACK M , TERASAWA DAISUKE
IPC: H04B7/005 , H04B1/707 , H04B1/7097
Abstract: A method for limiting peak transmit power in a CDMA communication system by transmitting a first communication signal having a first high transmit power region, and transmitting a second communication signal having a second high transmit power region. A first and a second communication signal are time offset to prevent the first and second high transmit power regions from occurring simultaneously. Time shifting only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmit power regions. The time offset can be selected to align one of the first and second high transmit power regions with one of the first and second low transmit power regions. The total transmit power signal can be determined and the time offset can be selected to minimize a peak level of the total transmit power signal. The communication signals are separated into a plurality of portions and portions of the first and second communication signals are time offset to re-order the sequence of transmission of the plurality of portions.
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公开(公告)号：ES2251221T3
公开(公告)日：2006-04-16
申请号：ES99942536
申请日：1999-08-30
Applicant: QUALCOMM INC
Inventor： HOLTZMAN JACK , TERASAWA DAISUKE , RAZOUMOV LEONID
IPC: H04B1/707 , H04B1/7103 , H04B7/005 , H04B7/26 , H04J11/00 , H04J13/00 , H04J13/12 , H04L25/03 , H04L27/26 , H04W52/04
Abstract: Procedimiento para reducir la potencia de transmisión de señal de las señales de comunicación transmitidas para ser utilizado en un sistema de comunicación que presenta una estación base y una pluralidad de estaciones de usuario que intercambian señales de comunicación con la estación base, estando caracterizado el procedimiento porque comprende las etapas siguientes: recibir datos de canales para la transmisión en una pluralidad de canales, incluyendo los datos de canales datos de símbolos piloto; combinar códigos ortogonales con los datos de canales recibidos, presentando cada código ortogonal por lo menos una posición de segmento común, y presentando la posición de segmento común un mismo valor para cada código ortogonal; y antes de transmitir los datos de canales combinados con los códigos ortogonales, alterar la posición de segmento común de por lo menos uno de los códigos ortogonales para reducir la amplitud combinada resultante de la transmisión y la suma simultáneas de la posición de segmento común de la pluralidad de canales.
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公开(公告)号：AT355659T
公开(公告)日：2006-03-15
申请号：AT01937580
申请日：2001-05-18
Applicant: QUALCOMM INC
Inventor： TERASAWA DAISUKE , GRILLI FRANCESCO , WILLENEGGER SERGE
Abstract: A novel and improved method and apparatus, in a WCDMA communication system, for informing a mobile station of a downlink data frame time offset by determining the downlink data frame time offset, and transmitting the downlink data frame time offset via an Active Set Update message transmitted from a cell to mobile station. Once an Active Set Update message is received, the data frame time offset information is provided to a timing block which may determine data frame boundary of each downlink signal. Timing block may then adjust the PN sequence timing corresponding to the downlink signal associated with the data frame time offset such that corresponding data symbols in each data frame are correctly soft combined in a combiner.
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公开(公告)号：AU2002325056A1
公开(公告)日：2003-04-01
申请号：AU2002325056
申请日：2002-09-19
Applicant: QUALCOMM INC
Inventor： RAO SUBRAMANYA P , TERASAWA DAISUKE , VENKATESAN SIVARAMA , GHO GWANG-HYUN , AGRAWAL AVNEESH
IPC: H04B1/7073 , H04B1/7075 , H04B1/7077 , H04B1/7083 , H04B1/709 , H04B1/7093 , H04Q7/38 , H04B1/707 , H04B7/26
Abstract: Techniques for searching in asynchronous systems are disclosed. In one aspect, a plurality of codes, such as SSCs, are correlated with a received signal at a plurality of offsets to produce a code/slot energy corresponding to each code/slot boundary pair. Unique subsets of the code/slot energies are summed to produce code sequence energies, the maximum of which indicates a located code sequence and slot boundary. In another aspect, the correlation is performed by sub-correlating the received signal with a common sequence, and performing a Fast Hadamard Transform (FHT) on the results. In yet another aspect, one sub-correlator can be used to search a plurality of peaks simultaneously. Various other aspects of the invention are also presented. These aspects collectively have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
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