公开(公告)号：WO01026269A1

公开(公告)日：2001-04-12

申请号：PCT/KR2000/001100

申请日：2000-10-02

IPC: H04B7/005 ,  H04J3/16 ,  H04J13/00 ,  H04W16/02 ,  H04W52/16 ,  H04W52/44 ,  H04W52/56 ,  H04W52/58 ,  H04W76/02 ,  H04B1/69

CPC classification number: H04W52/56 ,  H04B2201/70709 ,  H04J13/00 ,  H04W52/16 ,  H04W52/44 ,  H04W52/58

Abstract: A method for transmitting control data on a downlink and/or uplink channel in a base station and/or mobile station in a mobile communication system. In one embodiment, the base station determines whether there is downlink channel data to transmit to a mobile station. If there is no data to be transmitted over the downlink channel for a predetermined time period, the base station drives a random gating position selector to determine a random gating slot position, gates on the control data at the determined slot position, and gates off the control data at other slot positions. The random position selector determines the gating slot position by calculating a value x by multiplying a system frame number (SFN) of a received signal by a specific integer; selecting n bits starting from a position which is at an x-chip distance from the start point of a scrambling code, which has a period equal to one frame, before a plurality of gating durations used in generating a downlink signal; and determining a gating slot position of a corresponding gating slot group by performing a modulo operation on the selected n bits, where the module operation is by the number of slots in a gating slot group.

Abstract translation: 一种用于在移动通信系统中的基站和/或移动台中的下行链路和/或上行链路信道上发送控制数据的方法。 在一个实施例中，基站确定是否存在要向移动台发送的下行链路信道数据。 如果在预定时间段内没有要通过下行链路信道发送的数据，则基站驱动随机门控位置选择器以确定随机门控时隙位置，在所确定的时隙位置对控制数据进行门控，并关闭 控制其他插槽位置的数据。 随机位置选择器通过将接收信号的系统帧号（SFN）乘以特定整数来计算值x来确定选通时隙位置; 在用于生成下行链路信号的多个选通持续时间之前，从具有周期等于一帧的扰码开始点的x码片距离的位置开始选择n个比特; 以及通过对所选择的n位执行模运算来确定对应门控时隙组的门控时隙位置，其中模块操作是通过门控时隙组中的时隙数量。

公开(公告)号：WO1998002973A1

公开(公告)日：1998-01-22

申请号：PCT/US1997013117

申请日：1997-07-03

Applicant: GENERAL ELECTRIC COMPANY ,  HARRISON, Daniel, David ,  TIEMANN, Jerome, Johnson

Inventor： GENERAL ELECTRIC COMPANY

IPC: H04B01/707

CPC classification number: H04B1/708 ,  G01S5/0027 ,  G01S5/0036 ,  G01S5/0054 ,  G01S19/29 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  G01S19/42 ,  G06F17/15 ,  H04B1/707 ,  H04B1/71075 ,  H04B2201/70709 ,  H04W52/0283 ,  Y02D70/164 ,  Y02D70/40

Abstract: A direct sequence spread spectrum receiver samples an incoming signal and stores the sample in memory. Prior to sampling and storage, the incoming signal is translated to an IF signal. Also prior to storage, the IF signal is corrected for a frequency offset signal. The frequency offset may be caused by many sources, Doppler shift or local oscillator error, for example. Once the signal is corrected for the frequency offset, the signal sample is stored in memory. The signal sample is read from memory as necessary to process the signal. Such a receiver is useful in global positioning satellite (GPS) signal processing where the incoming signal contains several satellite transmissions encoded with CDMA encoding.

Abstract translation: 直接序列扩频接收机对输入信号进行采样并将样本存储在存储器中。 在采样和存储之前，输入信号被转换为IF信号。 同样在存储之前，针对频率偏移信号校正IF信号。 频率偏移可能由许多来源引起，例如多普勒频移或本地振荡器误差。 一旦对频率偏移校正了信号，信号样本将被存储在存储器中。 根据需要从存储器读取信号采样以处理信号。 这样的接收机在全球定位卫星（GPS）信号处理中是有用的，其中输入信号包含用CDMA编码编码的几个卫星传输。

公开(公告)号：WO1993018596A1

公开(公告)日：1993-09-16

申请号：PCT/US1993001981

申请日：1993-03-04

Applicant: QUALCOMM INCORPORATED

Inventor： QUALCOMM INCORPORATED ,  TIEDEMANN, Edward, G., Jr. ,  WEAVER, Lindsay, A., Jr. ,  KERR, Richard, J. ,  GEIB, Kenneth, M.

IPC: H04J03/16

CPC classification number: H04B1/1615 ,  H04B2201/70709 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0219 ,  H04W56/00 ,  H04W68/02 ,  H04W72/04 ,  H04W72/0413 ,  H04W72/12 ,  H04W74/04 ,  Y02D70/1222 ,  Y02D70/164 ,  Y02D70/26 ,  Y02D70/40

Abstract: A system for reducing receiver power consumption in communication system having a transmitter (141) and one or more receivers (146) schedules periodic message in "slot". Each receiver is assigned a slot during which it monitors the transmission. The transmitter (141) transmits messages to the receiver only during the assigned slots. The receiver is in an "active state" during its assigned slot. During the "inactive state", which is the time period between successive occurrences of its assigned slot, the receiver may perform any action not requiring coordination with transmitter. At a time during the inactive state shortly before the assigned slot, the receiver applies power to these components and performs initialization. Such initialization may include reacquiring a pilot channel signal to which the receiver may synchronize itself if its timing signal have drifted out of synchronization with those of the transmitter during the preceding inactive state.

Abstract translation: 一种用于在具有发射机（141）和一个或多个接收机（146）的通信系统中降低接收机功率消耗的系统在“时隙”中调度周期性消息。 每个接收机都被分配一个插槽，在此时间段中它监视传输。 发送器（141）仅在分配的时隙期间向接收者发送消息。 接收机在其分配的时隙中处于“活动状态”。 在“不活动状态”期间，其是其分配时隙的连续出现之间的时间段，接收机可以执行不需要与发射机协调的任何动作。 在分配时隙之前不活动状态的时间，接收机对这些组件施加功率并执行初始化。 这样的初始化可以包括重新获取导频信道信号，如果接收机的定时信号在前一个非活动状态期间已偏移与发射机的定时信号不同步，则其可以同步其自身。

公开(公告)号：WO2006079949A1

公开(公告)日：2006-08-03

申请号：PCT/IB2006/050195

申请日：2006-01-19

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  ZHU, Xia ,  LI, Yan

Inventor： ZHU, Xia ,  LI, Yan

IPC: H04B1/707

CPC classification number: H04B1/7093 ,  H04B2201/70709

Abstract: The present invention discloses a method and apparatus for implementing matched filter in a system using QPSK modulation. In the present invention, a multiplier is changed as a multiplexer by using the characteristic of the pilot sequence (or training sequence) so as to implement the matched filter.

Abstract translation: 本发明公开了一种在使用QPSK调制的系统中实现匹配滤波器的方法和装置。 在本发明中，乘法器通过使用导频序列（或训练序列）的特性作为多路复用器而改变，以便实现匹配滤波器。

公开(公告)号：WO2005071859A1

公开(公告)日：2005-08-04

申请号：PCT/JP2005/000753

申请日：2005-01-21

Applicant: シャープ株式会社 ,  上野 哲生 ,  野口 茂孝

Inventor： 上野 哲生 ,  野口 茂孝

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04W52/0229 ,  H04W52/0245 ,  Y02D70/142 ,  Y02D70/40

Abstract: 　無線通信装置は、外部からの信号を受信し、受信信号の電力レベルを検出する受信レベル判定部と、受信信号の相関を検出する相関検出・判定部とを有する。そして、受信待ち受け状態として、相関検出・判定部において相関が検出されるか否かにより受信状態への移行を判定する通常動作モードと、受信レベル判定部において受信信号電力レベルが検出されるか否かにより受信状態への移行を判定する低消費電力モードとを備え、必要に応じて通常動作モードと低消費電力モードとを切り替える。これにより、受信可能な受信電力の範囲を狭くすることなく、低消費電力化を図ることができる。つまり、通信装置の消費電力を低減するとともに、受信可能な受信電力範囲を広くとれる。

Abstract translation: 无线通信装置包括接收电平确定部分，其接收外部信号以确定接收信号的电功率电平，并且还包括检测所接收信号的相关性的相关检测/确定部分。 无线通信装置具有作为接收待机状态的正常操作模式，其中根据相关检测/判定部分是否检测到相关性来决定向接收状态的转变，以及低功耗模式，其中 根据接收电平确定部分确定接收信号的电功率电平，决定向接收状态的转换。 根据需要，无线通信装置在正常操作模式和低功耗模式之间切换。 以这种方式，可以降低功耗，而不会缩小可以接收的接收电功率的范围。 也就是说，可以减少通信装置的功耗，并且可以扩大可以接收的接收功率的范围。

公开(公告)号：WO2004021732A3

公开(公告)日：2004-06-17

申请号：PCT/US0326898

申请日：2003-08-26

Applicant: QUALCOMM INC

Inventor： AMERGA MESSAY ,  HALBHAVI SUDHIR

IPC: H04B1/707 ,  H04W36/08 ,  H04W36/30 ,  H04W40/02 ,  H04W48/20 ,  H04W52/02 ,  H04W68/00 ,  H04Q7/32

CPC classification number: H04W48/20 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70756 ,  H04B2201/70702 ,  H04B2201/70709 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0245 ,  Y02D70/00 ,  Y02D70/24 ,  Y02D70/40

Abstract: Techniques for cell reacquisition and reselection that increases time spent in low-power mode while effectively monitoring neighbor cells are disclosed. In one aspect, one or more windows around the expected location of the serving cell are searched in the period of time prior to the page indicator. In another aspect, intra-frequency neighbor cells are searched first to determine reselection candidates. Various other aspects are also presented. These aspects have the benefit of increasing time spent in low-power mode, thereby reducing power consumption and increasing standby time.

Abstract translation: 公开了用于在有效监测相邻小区的同时增加在低功率模式下花费的时间的用于小区重新获取和重新选择的技术。 在一个方面，在页面指示符之前的时间段内搜索围绕服务小区的预期位置的一个或多个窗口。 在另一方面，首先搜索频率内相邻小区以确定重选候选。 还提出了各种其他方面。 这些方面具有增加在低功率模式下花费的时间的优点，从而降低功耗并增加待机时间。

公开(公告)号：WO03065610A2

公开(公告)日：2003-08-07

申请号：PCT/US0302912

申请日：2003-01-31

Applicant: QUALCOMM INC

Inventor： KANG INYUP ,  PATRICK CHRISTOPHER ,  MEAGHER BRUCE R ,  PATEL SHIMMAN ,  LI TAO ,  CHEUNG JOSEPH ,  SRINAVAS PILLAPPAKKAM ,  FOERSTER GREGORY B ,  VARADARAJAN SRINIVAS ,  WEI JIAN

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B1/7075 ,  H04B2201/70709

Abstract: A pilot searcher for CDMA and GPS signals. In one aspect, the searcher is operated in conjunction with a sample buffer in a "real-time" or "off-line" mode. The writing/reading of samples to/from the buffer may be performed in a TDM manner via a common port, and samples may be decimated and packed prior to storing in the buffer. In another aspect, the overall search for pilots is partitioned into a number of tasks, with each task corresponding to a search over a given sample segment and based on a particular set of parameter values. The tasks may be stored in a queue and performed one at a time based on their order in the queue. Prior to performing a new task, the parameter values for that task is downloaded to a set of configuration registers. The parameters may be ordered and linked such that only new values are downloaded.

Abstract translation: 用于CDMA和GPS信号的导频搜索器。 在一个方面，搜索器与“实时”或“离线”模式中的采样缓冲器结合操作。 可以通过公共端口以TDM方式执行对/从缓冲器的读取/从缓冲器的读取/读取，并且可以在存储在缓冲器中之前对样本进行抽取和打包。 在另一方面，对导频的总体搜索被划分成多个任务，其中每个任务对应于在给定采样段上的搜索并且基于特定参数值集合。 任务可以存储在队列中，并根据队列中的顺序一次执行一次。 在执行新任务之前，将该任务的参数值下载到一组配置寄存器。 可以对参数进行排序和链接，以便仅下载新值。

公开(公告)号：WO02009306A1

公开(公告)日：2002-01-31

申请号：PCT/US2001/022758

申请日：2001-07-17

IPC: H04B1/708 ,  H04B1/7115 ,  H04B7/02 ,  H04W68/00 ,  H04B1/707 ,  H04Q7/38

CPC classification number: H04W68/00 ,  H04B1/708 ,  H04B1/7115 ,  H04B7/022 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70709

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher (206) is used to detect spread spectrum signals. The searcher (206) searches several pilot channels associated with several base stations. A controller (210) selects at least two base stations that have associated pilot signal (501-02) energies exceeding a threshold (510). A demodulator (208) demodulates for paging channels transmitted by the at least two base stations. The paging channels are transmitted over substantially overlapping time slots. A combiner (212) combines a result of the demodulation generated by demodulating each of the paging channels.

Abstract translation: 描述了一种用于执行寻呼的新颖和改进的方法。 在本发明的一个实施例中，搜索器（206）用于检测扩频信号。 搜索器（206）搜索与几个基站相关联的几个导频信道。 控制器（210）选择具有超过阈值（510）的相关导频信号（501-02）能量的至少两个基站。 解调器（208）对由至少两个基站发送的寻呼信道进行解调。 寻呼信道在大体上重叠的时隙上传输。 组合器（212）组合通过解调每个寻呼信道而产生的解调结果。

公开(公告)号：WO01048970A1

公开(公告)日：2001-07-05

申请号：PCT/US2000/033970

申请日：2000-12-15

IPC: H04B1/692 ,  H04B1/707 ,  H04L5/02 ,  H04L5/06

CPC classification number: H04B1/707 ,  H04B1/692 ,  H04B2201/70709 ,  H04L5/026

Abstract: A signal reception method including method and apparatus for receiving a signal, downconverting the received signal through multi-tone down conversion to form an intermediatesignal, and decoding the intermediate signal to extract data. In an embodiment, the received signal may include multiple transmission bands of a multi-code (MC)- CDMA signal,each of which occupies a different spectrum. Each of the transmission bands also includes an information channel signal. When the received MC-CDMA signal is down converted through multi-tone down conversion, the intermediate signal is formed. The intermediate signalincludes a common spectrum that includes an information channel from a plurality of transmission bands. When the intermediate signal is decoded, data from a plurality ofinformation channel bands is extracted. The method and apparatus may be implemented in a multi-mode MC-CDMA/CDMA receiver.

Abstract translation: 一种信号接收方法，包括用于接收信号的方法和装置，通过多色调降频转换下变频接收的信号以形成中间信号，以及对中间信号进行解码以提取数据。 在一个实施例中，接收的信号可以包括多码（MC）-CDMA信号的多个传输频带，每个信号占用不同的频谱。 每个传输频带还包括信息信道信号。 当接收到的MC-CDMA信号通过多音调降频转换被下变频时，形成中间信号。 中间信号包括包含来自多个传输频带的信息信道的公共频谱。 当解码中间信号时，提取来自多个信息信道频带的数据。 该方法和装置可以在多模MC-CDMA / CDMA接收机中实现。

公开(公告)号：WO00067442A1

公开(公告)日：2000-11-09

申请号：PCT/IL2000/000228

申请日：2000-04-18

IPC: H04B1/707 ,  H04B1/7085 ,  H04B1/7117 ,  H04L27/30 ,  H04B7/216 ,  H04L1/02 ,  H04L7/00

CPC classification number: H04B1/7117 ,  H04B1/7085 ,  H04B2201/70709

Abstract: In a receiver having at least two fingers, the fingers tracking at least one path of a multipath channel, a method includes the steps of forming a finger block of at leat two of the two fingers and jointly tracking the fingers of said finger block. The step of jointly tracking includes the steps of generating direction metrics (12) of each of a set of possible directions of joint movement (16) of the fingers of the finger block, selecting one of the direction metrics (12) according to a predetermined criterion, and moving the fingers of the finger block in the directions indicated by the selected direction metric.

Abstract translation: 在具有至少两个手指的接收器中，手指跟踪多径信道的至少一个路径，方法包括以下步骤：形成两个手指中的两个手指的手指块，并联合跟踪所述手指块的手指。 联合跟踪的步骤包括以下步骤：产生手指块的手指的联合移动（16）的一组可能方向中的每一个的方向度量（12），根据预定的方式选择方向度量（12）之一 标准，并且沿着所选方向度量指示的方向移动手指块的手指。