公开(公告)号：US20050169198A1

公开(公告)日：2005-08-04

申请号：US11098733

申请日：2005-04-04

Applicant: Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen Terry

Inventor： Ariela Zeira ,  Eldad Zeira ,  Alexander Reznik ,  Stephen Terry

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7093 ,  H04B1/7103 ,  H04B1/7105 ,  H04B7/00 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04Q7/38 ,  H04B1/69

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7105 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04J13/00 ,  H04J13/16

Abstract: Midamble codes are selected in a wireless time division duplex communication system. At least one channelization code is assigned to a user equipment. A mapping is provided between midamble codes and channelization codes. At least one midamble code is mapped to a plurality of channelization codes having a same spreading factor. The midamble code mapped to the at least one channelization code to the user equipment is selected. A communication burst is formed with the assigned at least one channelization code and the selected midamble code.

Abstract translation: 在无线时分双工通信系统中选择Midamble码。 至少一个信道化码被分配给用户设备。 在中间码和信道化码之间提供映射。 至少一个中间码代码被映射到具有相同扩频因子的多个信道化码。 选择映射到用户设备的至少一个信道化码的中间码。 形成具有分配的至少一个信道化码和所选择的中置码的通信突发。

公开(公告)号：US20050147154A1

公开(公告)日：2005-07-07

申请号：US11054439

申请日：2005-02-10

Applicant: Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

Inventor： Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

IPC: H04J13/00 ,  H04B1/16 ,  H04B1/707 ,  H04B1/7075 ,  H04B7/26 ,  H04W52/02 ,  H04K1/00

CPC classification number: H04B1/70756 ,  H04B1/707 ,  H04B1/7075 ,  H04B2201/70709 ,  H04W52/029 ,  Y02D70/26 ,  Y02D70/40

Abstract: A receiver for the CDMA system, in order to reduce a power consumption during a suspension period of intermittent receiving operation, monitors a suspension period t1 by means of a low-power timer 51 so that a VC-TCXO 1, a reference signal group generation unit 2 and a receiving unit 3 are turned off and a modem unit 4 is set to a sleep state. Upon resumption of receiving operation, a high-accuracy timer 44 is supplied with a start (d) to require counting of time t3 and a part of a received signal is stored. A PN code phase of stored data is calculated in a PN code phase calculator 46 during a period t3 to obtain an indication value i for a phase deviation. State vectors for short code and long code and further a reception time t4 are calculated on the basis of the indication value i to be set. When the high-accuracy timer 44 counts t3 and produces 0V(d), demodulation operation by a rake demodulation unit 40, a demultiplexing unit 41 and a descrambler unit 42 is started in accordance with the setting and is continued during the reception time t4.

Abstract translation: CDMA系统的接收机为了在间歇接收操作的暂停期间降低功耗，借助于低功率定时器51监视暂停时段t 1，使得VC-TCXO 1，参考信号组 生成单元2和接收单元3被关闭，并且调制解调器单元4被设置为睡眠状态。 在恢复接收操作时，高精度定时器44被提供有开始（d），以需要计数时间t 3，并且存储接收信号的一部分。 在时间段t 3期间，在PN码相位计算器46中计算存储数据的PN码相位，以获得相位偏差的指示值i。 基于要设定的指示值i计算短码和长码的状态向量以及进一步的接收时间t 4。 当高精度定时器44计数t 3并产生0V（d）时，根据该设置启动由前置解调单元40，解复用单元41和解扰单元42进行的解调操作，并且在接收时间期间继续 t 4。

公开(公告)号：US20050094716A1

公开(公告)日：2005-05-05

申请号：US10661376

申请日：2003-09-12

Applicant: Timo Hakasalo ,  Risto Paatelma

Inventor： Timo Hakasalo ,  Risto Paatelma

IPC: H04B1/707

CPC classification number: H04B1/70756 ,  H04B2201/70701 ,  H04B2201/70709

Abstract: The invention relates to a method for synchronizing the phase of a code available at a receiving unit with the phase of a corresponding code of which samples are received at said receiving unit. The synchronization comprises comparing a received code sample with different samples of the available code, the respective sample of the available code being shifted in phase for each comparison by a predetermined amount until a correspondence with the received code sample is determined or until an interrupt of the synchronization occurs. In order to accelerate the synchronization, it is proposed to continue the synchronization after an interrupt with a newly received code sample and with available code samples proceeding from the code phase of the available code reached in the synchronization before the interrupt. The invention relates equally to a corresponding receiving unit and to a communication system comprising such a receiving unit.

Abstract translation: 本发明涉及一种用于使在接收单元处可用的代码的相位与在所述接收单元处接收到采样的相应代码的相位同步的方法。 同步包括将接收到的代码样本与可用代码的不同样本进行比较，可用代码的相应样本在每个比较期间被相位移位预定量，直到与接收到的代码样本的对应被确定或直到中断 同步发生。 为了加速同步，建议在新接收到的代码样本的中断之后继续同步，并且可以从中断之前的同步中达到的可用代码的代码阶段继续执行可用的代码示例。 本发明同样涉及相应的接收单元和涉及包括这种接收单元的通信系统。

公开(公告)号：US20050047358A1

公开(公告)日：2005-03-03

申请号：US10964104

申请日：2004-10-12

Applicant: Ganesh Pattabiraman ,  John Burke

Inventor： Ganesh Pattabiraman ,  John Burke

IPC: H04B1/38 ,  H04B1/16 ,  H04B1/40 ,  H04B1/707 ,  H04B1/713 ,  H04M1/00 ,  H04M1/73 ,  H04W52/02 ,  G08C17/00

CPC classification number: H04W56/0015 ,  G06F1/3203 ,  H04B1/707 ,  H04B1/713 ,  H04B2201/70709 ,  H04W52/0216 ,  H04W52/0229 ,  H04W56/00 ,  H04W84/18 ,  H04W88/06 ,  Y02D10/126 ,  Y02D70/1224 ,  Y02D70/144 ,  Y02D70/40

Abstract: Techniques are provided for synchronizing a wakeup schedule for a first module and a wakeup schedule for a CDMA module in a wireless mobile unit operable in a synchronous communication system. In one embodiment, a next CDMA wakeup time is determined. A new wakeup time for the first module can then be synchronized to a next CDMA wakeup time when a next CDMA wakeup time is earlier than a next wakeup time for the first module

Abstract translation: 提供了用于同步用于第一模块的唤醒调度和用于在同步通信系统中操作的无线移动单元中的CDMA模块的唤醒调度的技术。 在一个实施例中，确定下一个CDMA唤醒时间。 然后，当下一个CDMA唤醒时间早于第一模块的下一个唤醒时间时，第一模块的新的唤醒时间可以被同步到下一个CDMA唤醒时间

公开(公告)号：US06717978B1

公开(公告)日：2004-04-06

申请号：US09575923

申请日：2000-05-23

Applicant: Roy Xun Yang ,  Stefan Paun ,  Jiangnan Jason Chen

Inventor： Roy Xun Yang ,  Stefan Paun ,  Jiangnan Jason Chen

IPC: H04B169

CPC classification number: H04W56/008 ,  H04B1/707 ,  H04B1/7117 ,  H04B2201/70709 ,  H04W52/0216 ,  Y02D70/40

Abstract: A method and apparatus for system time alignment is provided. The method and apparatus for a system time alignment provides synchronization between system components even when one or more system components remains in a quiescent mode for an extended period of time. Compensation for changes in propagation delay between system components is provided, even when such changes in propagation delay occur while one or more system components is in a quiescent mode. A searcher (402) searches a raw data signal for a maximal energy, and a shifter (403) shifts a spreading sequence a plurality of times. An accumulator (408) accumulates a plurality of sets of symbols to produce a plurality of symbol energies. A time offset calculator (410) calculates an updated time offset value and an updated system time value and updates a reference position counter (202) and a system time counter (205), respectively, with these values.

Abstract translation: 提供了一种用于系统时间对准的方法和装置。 用于系统时间对准的方法和装置提供系统组件之间的同步，即使一个或多个系统组件在长时间内保持静止模式。 即使当一个或多个系统组件处于静态模式时，传播延迟的这种变化也会发生，系统组件之间的传播延迟的变化的补偿。 搜索器（402）在原始数据信号中搜索最大能量，并且移位器（403）多次移位扩频序列。 累加器（408）累积多组符号以产生多个符号能量。 时间偏移计算器（410）计算更新的时间偏移值和更新的系统时间值，并用这些值分别更新参考位置计数器（202）和系统时间计数器（205）。

公开(公告)号：US06707842B2

公开(公告)日：2004-03-16

申请号：US09255032

申请日：1999-02-22

Applicant: Roland R. Rick ,  Brian C. Banister ,  Mark Davis

Inventor： Roland R. Rick ,  Brian C. Banister ,  Mark Davis

IPC: H04L2730

CPC classification number: H04B1/707 ,  H04B2201/70702 ,  H04B2201/70709

Abstract: A method and apparatus for searching for neighboring base stations by waking from a power-saving sleep mode to receive an incoming signal. The incoming signal is received and at least a portion of the incoming signal is stored. The stored information signal is then processed with each of several different codes to determine a power level corresponding to each of the different codes.

Abstract translation: 一种用于通过从省电休眠模式唤醒以接收输入信号来搜索相邻基站的方法和装置。 输入信号被接收并且至少一部分输入信号被存储。 然后利用几个不同的代码中的每一个处理所存储的信息信号，以确定与每个不同代码对应的功率电平。

公开(公告)号：US20040043798A1

公开(公告)日：2004-03-04

申请号：US10318695

申请日：2002-12-12

Inventor： Messay Amerga ,  Sudhir Halbhavi

IPC: H04Q007/20 ,  H04M001/00 ,  H04B001/38

CPC classification number: H04W48/20 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70756 ,  H04B2201/70702 ,  H04B2201/70709 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0245 ,  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：US06678260B2

公开(公告)日：2004-01-13

申请号：US09997621

申请日：2001-11-29

Applicant: James A. Proctor, Jr.

Inventor： James A. Proctor, Jr.

IPC: H04B7216

CPC classification number: H04B7/2628 ,  H04B1/7075 ,  H04B1/70754 ,  H04B2001/70706 ,  H04B2201/70703 ,  H04B2201/70709 ,  H04B2201/70715 ,  H04J13/0022 ,  H04J13/004 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L7/06 ,  H04L25/14 ,  H04L27/2601 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/20 ,  H04W28/22 ,  H04W56/00 ,  H04W56/0045 ,  H04W56/0075 ,  H04W72/0413 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/04 ,  H04W76/28 ,  H04W84/14

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance subchannel.

公开(公告)号：US20040004996A1

公开(公告)日：2004-01-08

申请号：US10241484

申请日：2002-09-12

Applicant: Kabushiki Kaisha Toshiba

Inventor： Eiji Iimori ,  Masami Morimoto

IPC: H04B001/69 ,  H04B001/707

CPC classification number: H04W52/029 ,  H04B1/707 ,  H04B1/7117 ,  H04B2201/70709 ,  Y02D70/12 ,  Y02D70/24 ,  Y02D70/40

Abstract: Ending of a sleeping period is managed by, for one portion thereof, first clock signals being counted by a first clocking section, and for a remaining portion thereof, second clock signals being counted by a second clocking section. At this time, a count number by which the first clock signals are counted and a count number by which the second clock signals are counted are corrected on the basis of changes of a center of gravity in a distribution of timings of a plurality of paths.

Abstract translation: 休眠期的结束由其第一时钟部分由第一时钟部分计数的第一时钟信号管理，并且其余部分由第二计时部分计数第二时钟信号。 此时，基于多个路径的定时分布中的重心的变化来校正第一时钟信号的计数次数和计数第二时钟信号的计数。

公开(公告)号：US06618434B2

公开(公告)日：2003-09-09

申请号：US09871049

申请日：2001-05-31

Applicant: Ghobad Heidari-Bateni ,  Robert Thomas Plunkett

Inventor： Ghobad Heidari-Bateni ,  Robert Thomas Plunkett

IPC: H04B1707

CPC classification number: H04B1/711 ,  H04B1/7113 ,  H04B1/7117 ,  H04B1/712 ,  H04B2201/70709

Abstract: The present invention concerns a new type of rake receiver, namely, a multimode rake receiver, which may be included within either a mobile station or a base station, and which has dynamic pilot signal searching and multipath reception and combining capability, for CDMA, cdma2000, W-CDMA, or other mobile communication systems. The adaptive, multimode rake receiver includes a network interface, a plurality of adaptive multimode rake fingers, and a multimode processor. Each adaptive multimode rake finger and the multimode processor are responsive to first configuration information (a first mode signal) to configure for a path reception functional mode and are further responsive to second configuration information (a second mode signal) to configure for a searcher functional mode, providing the multimode rake receiver with acquisition, traffic, and idle modes. In the preferred embodiment, the multimode rake receiver is implemented using a new category of integrated circuitry for adaptive or reconfigurable computing, providing a plurality of heterogeneous computational elements coupled to an interconnection network, to form adaptive and reconfigurable multimode rake fingers and a multimode processor, for a plurality of different functional modes, including pilot signal searching and multipath reception and combination.