公开(公告)号：US20020086695A1

公开(公告)日：2002-07-04

申请号：US10086320

申请日：2002-03-01

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

IPC: H04Q007/20

CPC classification number: H04W52/36 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: A method employed by a base station for controlling transmission power during the establishment of a communication channel utilizes the reception of a short code during initial power ramp-up. The short code is a sequence for detection by the base station which has a much shorter period than a conventional access code. The ramp-up starts from a power level that is lower than the required power level for detection by the base station. The power of the short code is quickly increased until the signal is detected by the base station. Once the base station detects the short code, it transmits an indication that the short code has been detected.

Abstract translation: 在建立通信信道期间由基站用于控制发射功率的方法利用在初始功率提升期间接收短码。 短代码是用于基站检测的序列，其具有比常规访问码短得多的周期。 斜坡上升从低于基站检测所需功率电平的功率电平开始。 短码的功率快速增加，直到基站检测到信号。 一旦基站检测到短码，它就会发送一个指示已经检测到短码。

公开(公告)号：US20020082040A1

公开(公告)日：2002-06-27

申请号：US10086330

申请日：2002-03-01

Applicant: InterDigital Technology Corporation

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp

IPC: H04B017/00

CPC classification number: H04W52/36 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/7071 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: A method employed by a subscriber station for controlling transmission power during the establishment of a communication channel utilizes the transmission of a short code from a subscriber unit during initial power ramp-up. The short code is a sequence which has a much shorter period than a conventional access code. The ramp-up starts from a low initial power level, and the power is quickly increased while repeatedly transmitting the short code until the subscriber unit receives an indication that the short code has been detected.

Abstract translation: 在建立通信信道期间，用户台用于控制传输功率的方法在初始功率提升期间利用来自用户单元的短码的传输。 短代码是比常规访问代码短得多的序列。 斜坡上升从低初始功率电平开始，并且在重复发送短代码的同时快速增加功率，直到用户单元接收到已经检测到短码的指示。

公开(公告)号：US06405272B1

公开(公告)日：2002-06-11

申请号：US09079600

申请日：1998-05-15

Applicant: Robert T. Regis

Inventor： Robert T. Regis

IPC: G06F13368

CPC classification number: H04B1/7075 ,  G06F13/374 ,  G06F13/376 ,  H04B1/70753 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/708 ,  H04B2201/70702

Abstract: An arbitration system which allows communication between a plurality of competing processing modules over a shared communication bus. The system comprises an arbitration line coupled to a controller located on each processing module. When a processing module desires access to the communication bus, each controller, executing the same arbitration protocol, shifts its respective module address onto the arbitration line and monitors the arbitration line to detect for collisions.

Abstract translation: 一种允许通过共享通信总线在多个竞争处理模块之间进行通信的仲裁系统。 该系统包括耦合到位于每个处理模块上的控制器的仲裁线。 当处理模块期望访问通信总线时，执行相同仲裁协议的每个控制器将其各自的模块地址移动到仲裁线路上，并监视仲裁线路以检测冲突。

公开(公告)号：US06385259B1

公开(公告)日：2002-05-07

申请号：US09410294

申请日：1999-09-30

Applicant: Po-An Sung ,  Jin-Ghee Goh

Inventor： Po-An Sung ,  Jin-Ghee Goh

IPC: H04L2706

CPC classification number: H04B1/70735 ,  H04B1/7077 ,  H04B2201/70702

Abstract: A chip synchronization composite code match filter and a frame synchronization composite code match filter are disclosed and respectively serve as the first and second stages of a mobile terminal which also has a third stage for providing a scrambling code identification function. These three stages complete the acquisition function for the mobile terminal. The mobile terminal is particularly suited for operational interaction in the Third Generation Partnership Project (3GPP) Standard. Both the chip synchronization and frame synchronization composite code match filters utilize the hierarchial structure of the Golay code in a manner so as to reduce the components needed to accomplish the chip and frame synchronization functions for the mobile terminal operating within the 3GPP standards.

Abstract translation: 公开了一种码片同步复合码匹配滤波器和帧同步复合码匹配滤波器，并分别用作移动终端的第一和第二级，该移动终端还具有提供扰码识别功能的第三级。 这三个阶段完成了移动终端的采集功能。 移动终端特别适用于第三代合作伙伴计划（3GPP）标准中的操作交互。 芯片同步和帧同步复合码匹配滤波器都以这样的方式利用格雷码的分层结构，以便减少完成在3GPP标准中运行的移动终端的芯片和帧同步功能所需的组件。

公开(公告)号：US20020034167A1

公开(公告)日：2002-03-21

申请号：US09791025

申请日：2001-02-21

Inventor： Fatih M. Ozluturk ,  Gary R. Lomp ,  John Kowalski

IPC: H04Q007/00

CPC classification number: G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2637 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60

Abstract: A code-division-multiple-access (CDMA) system employing spread-spectrum modulation. The CDMA system has a base station (BS), and a plurality of subscriber units. The signals transmitted between the base station and subscriber unit use spread-spectrum modulation. The improvement method for adaptive forward power control (APC) from a base station (BS) to a subscriber unit (SU), comprises the steps of sending from the base station, using spread-spectrum modulation, a BS-spreading code on a forward channel. The subscriber unit despreads the BS-spreading code on the forward channel as a despread signal, determines a first power level Pd which includes power of the despread signal plus noise and a second power level PN, which includes despread-noise power. The subscriber unit determines a first error signal e1, from the first power level Pd, the second power level PN, and a required signal-to-noise ratio SNRREQ for service type, and a second error signal e2, from a measure of total received power Pr and an automatic gain control (AGC) set point Po. The subscriber unit forms a combined error signal from the first error signal e1, the second error signal e2, a first weight a1 and a second weight a2, and hard limits the combined error signal to form a single APC bit. The APC bit is transmitted to the base station. In response to the APC bit, the base station adjusts transmitter power to the subscriber unit.

Abstract translation: 采用扩频调制的码分多址（CDMA）系统。 CDMA系统具有基站（BS）和多个用户单元。 在基站和用户单元之间传输的信号使用扩频调制。 从基站（BS）到用户单元（SU）的自适应前向功率控制（APC）的改进方法包括以下步骤：使用扩频调制从前向基站发送BS扩展码 渠道。 用户单元将前向信道上的BS扩展码解扩展为解扩信号，确定包括解扩信号加噪声功率的第一功率电平Pd和包括解扩噪声功率的第二功率电平PN。 订户单元从服务类型的第一功率电平Pd，第二功率电平PN以及所需的信噪比SNRREQ和第二误差信号e2中确定第一误差信号e1 功率Pr和自动增益控制（AGC）设定点Po。 订户单元形成来自第一误差信号e1，第二误差信号e2，第一权重a1和第二权重a2的组合误差信号，并且硬限制组合误差信号以形成单个APC比特。 APC位被传送到基站。 响应于APC位，基站调整发射机功率给用户单元。

公开(公告)号：US20020027898A1

公开(公告)日：2002-03-07

申请号：US09944450

申请日：2001-08-31

Inventor： Motohiro Tanno ,  Takehiro Nakamura

IPC: H04J003/06

CPC classification number: H04B1/70735 ,  H04B1/7083 ,  H04B1/7115 ,  H04B2201/70701 ,  H04B2201/70702

Abstract: The present invention increases the detection accuracy of each of a first to a third steps of cell search to reduce the time required for detecting correct frame boundaries and scramble code. A mobile station inputs a received signal to a matched filter corresponding to a primary synchronization code PSC, and a multi-slot averaging section executes averaging over a plurality of slots in order to reduce the adverse effects of noise and interference. After the averaging over the plurality of slots, a multi-search averaging section further executes averaging over a plurality of searches. Subsequently, a peak detector selects a timing with which an average correlation value is largest, to detect slot boundaries.

Abstract translation: 本发明增加了小区搜索的第一到第三步骤中的每一个的检测精度，以减少检测正确的帧边界和扰码所需的时间。 移动台将接收的信号输入到与主同步码PSC对应的匹配滤波器，多时隙平均部对多个时隙进行平均化，以减少噪声和干扰的不良影响。 在多个时隙中的平均之后，多搜索平均部分进一步对多个搜索执行平均。 随后，峰值检测器选择平均相关值最大的定时，以检测时隙边界。

公开(公告)号：US06351486B1

公开(公告)日：2002-02-26

申请号：US09318525

申请日：1999-05-25

Applicant: Donald Brian Eidson

Inventor： Donald Brian Eidson

IPC: A61F206

CPC classification number: H04W48/20 ,  H04B2201/70701 ,  H04B2201/70702

Abstract: A mobile wireless transceiver selects one of multiple nearby base stations to facilitate communication over a wireless network. Each base station transmits a pilot signal that includes a spreading signal transmitted at one of many possible phase offsets. The wireless transceiver selects an initial one of the possible phase offsets of the spreading signal and then correlates a received signal against the spreading signal at consecutive ones of the possible phase offsets. Correlation begins at the selected initial phase offset and continues until a component of the received signal and the spreading signal are aligned, indicating the detection of the pilot signal from one of the base stations. The transceiver then selects a non-consecutive one of the possible phase offsets of the spreading signal and correlates the received signal against the spreading signal at this non-consecutive phase offset to determine whether any other component of the received signal is aligned with the spreading signal at the selected non-consecutive phase offset.

公开(公告)号：US20010051520A1

公开(公告)日：2001-12-13

申请号：US09835229

申请日：2001-04-13

Inventor： Lars Johansson ,  Walter Muller

IPC: H04Q007/20

CPC classification number: H04W52/343 ,  H04B1/711 ,  H04B1/7117 ,  H04B2201/70702 ,  H04W16/06

Abstract: A method and a system for handling resources in purpose to avoid congestion in a cellular radio system, comprising at least one mobile terminal (1) connectable to a network via at least one base station (3,5,7,9,11,13; 50). According to the invention the method comprises the steps: receiving in the at least one base station (3,5,7,9,11,13; 50) a signal sent from a mobile terminal (1), the receiving in different base stations (3,5,7) corresponding to different radio paths (uplinks) of the signal; deriving from these uplinks a resulting signal corresponding to the signal sent from the mobile terminal (1); determining the importance of each uplink to the resulting signal; deciding according to the determination which downlinks that should be given less power or be removed if there is or is about to be a shortage of resources, in purpose to free resources; controlling the power of the decided downlinks if there is or is about to be a shortage of resources.

Abstract translation: 一种用于处理资源以避免蜂窝无线电系统中的拥塞的方法和系统，包括经由至少一个基站可连接到网络的至少一个移动终端（1）（3,5,7,9,11,13 ; 50）。 根据本发明，所述方法包括以下步骤：在所述至少一个基站（3,5,7,9,11,13; 50）中接收从移动终端（1）发送的信号，所述接收在不同的基站 （3,5,7）对应于信号的不同无线电路径（上行链路）; 从所述上行链路导出对应于从所述移动终端（1）发送的信号的结果信号; 确定每个上行链路对所产生的信号的重要性; 根据确定哪些下行链路应该给予较少的权力或者如果存在或即将是资源短缺，则决定是为了释放资源; 如果存在或将要资源短缺，则控制所决定的下行链路的功率。

公开(公告)号：US20010030973A1

公开(公告)日：2001-10-18

申请号：US09840769

申请日：2001-04-24

Inventor： Gary Lomp ,  Fatih Ozluturk ,  Avi Silverberg

IPC: H04B007/216

CPC classification number: H04B7/2637 ,  G06F13/374 ,  H03H17/0226 ,  H03H17/06 ,  H04B1/707 ,  H04B1/7075 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70755 ,  H04B1/70758 ,  H04B1/7077 ,  H04B1/708 ,  H04B1/7085 ,  H04B1/709 ,  H04B1/7093 ,  H04B1/711 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/2628 ,  H04B7/264 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70703 ,  H04B2201/70707 ,  H04B2201/7071 ,  H04J13/00 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107 ,  H04J13/12 ,  H04J13/16 ,  H04J2013/0037 ,  H04L1/0001 ,  H04L1/004 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/0059 ,  H04L5/1446 ,  H04L25/0212 ,  H04L27/206 ,  H04L27/2332 ,  H04L2027/003 ,  H04L2027/0053 ,  H04N1/00912 ,  H04N1/3333 ,  H04N2201/3335 ,  H04W52/04 ,  H04W52/08 ,  H04W52/143 ,  H04W52/146 ,  H04W52/24 ,  H04W52/241 ,  H04W52/245 ,  H04W52/247 ,  H04W52/26 ,  H04W52/262 ,  H04W52/322 ,  H04W52/325 ,  H04W52/343 ,  H04W52/346 ,  H04W52/36 ,  H04W52/367 ,  H04W52/44 ,  H04W52/50 ,  H04W52/52 ,  H04W52/54 ,  H04W52/60 ,  Y02D10/14

Abstract: A spread spectrum code division multiple access communication system has a plurality of traffic channels. A plurality of traffic lights have a red state and a green state. Each traffic light is associated with a traffic channel. The state of each traffic light is based on an availability of that traffic light's associated traffic channel. The base station broadcasts each traffic light over a broadcast channel.

Abstract translation: 扩频码分多址通信系统具有多个业务信道。 多个交通信号灯具有红色状态和绿色状态。 每个交通灯都与一个交通信道相关联。 每个红绿灯的状态是基于该交通信号灯的相关业务信道的可用性。 基站通过广播频道广播每个交通信号灯。

公开(公告)号：US20010019578A1

公开(公告)日：2001-09-06

申请号：US09784031

申请日：2001-02-16

Inventor： Takenobu Arima

IPC: H04K001/00 ,  H04B015/00 ,  H04L027/30

CPC classification number: H04B1/7077 ,  H04B1/708 ,  H04B1/709 ,  H04B2201/70702

Abstract: Threshold judging circuit 151 performs a threshold judgment on a correlation value output from each of search correlators 104-1 to 104-n. Rank determining circuit 152 ranks phases output from threshold judging circuit 151 in descending order of correlation value. Candidate path determining circuit 153 determines a phase with a high correlation value in the short integration as a candidate path to assign to one of search correlators 104-1 to 104-n sequentially, and outputs a control signal for generating an operation clock based on an assignment result to clock generator 106. Demodulation phase determining circuit 154 determines a candidate path with a highest correlation value in the long integration to be optimal for use in demodulation, and outputs a control signal for generating an operation clock based on a determined result to clock generator 106. It is thereby possible to perform a cell search fast without increasing a hardware scale.

Abstract translation: 阈值判定电路151对从搜索相关器104-1〜104-n各自输出的相关值进行阈值判定。 秩确定电路152按照相关值的降序对从阈值判定电路151输出的相位进行排序。 候选路径确定电路153确定在短积分中具有高相关值的相位作为候选路径，以依次分配给搜索相关器104-1至104-n中的一个，并输出用于产生基于运算时钟的操作时钟的控制信号 分配结果到时钟发生器106.解调相位确定电路154确定长积分中具有最高相关值的候选路径对于在解调中使用是最佳的，并且基于确定的结果输出用于产生操作时钟的控制信号 从而可以在不增加硬件规模的情况下快速执行小区搜索。