公开(公告)号：US07903768B2

公开(公告)日：2011-03-08

申请号：US11815206

申请日：2006-01-19

Applicant: Xia Zhu ,  Yan Li

Inventor： Xia Zhu ,  Yan Li

IPC: H03D1/00

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：US07809411B2

公开(公告)日：2010-10-05

申请号：US11469302

申请日：2006-08-31

Applicant: Kazuhiro Arimitsu

Inventor： Kazuhiro Arimitsu

IPC: H04M1/00 ,  H04B1/38 ,  H04B1/16

CPC classification number: H04W52/029 ,  H04B2201/70709 ,  H04W52/0261 ,  Y02D70/1262 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/24

Abstract: In a CDMA mobile terminal, the power supply voltage of the mobile terminal is compared with a first threshold voltage, and frequency monitor is performed at a normal rate if the power supply voltage is higher than the first threshold voltage, and frequency monitor is performed at 1/N of the normal rate if the power supply voltage is lower than the first threshold voltage, where N is equal to or greater than 2. Additionally, the power level of an RF signal received by the mobile terminal is compared with a first reference level, and frequency monitor is performed at the normal rate if the power level of the RF signal is lower than the first reference level, and frequency monitor is performed at 1/N of the normal rate if the power level of the RF signal is higher than the first reference level.

Abstract translation: 在CDMA移动终端中，将移动终端的电源电压与第一阈值电压进行比较，并且如果电源电压高于第一阈值电压，则以正常速率执行频率监视，并且在 如果电源电压低于第一阈值电压，其中N等于或大于2，则为正常速率的1 / N。此外，将移动终端接收的RF信号的功率电平与第一参考 如果RF信号的功率电平低于第一参考电平，则以正常速率执行电平和频率监视，并且如果RF信号的功率电平更高，则以正常速率的1 / N执行频率监视 比第一个参考水平。

公开(公告)号：US07782820B2

公开(公告)日：2010-08-24

申请号：US11526725

申请日：2006-09-26

Applicant: Francis Dominique ,  Hongwei Kong

Inventor： Francis Dominique ,  Hongwei Kong

IPC: H04W4/00

CPC classification number: H04L1/005 ,  H04B2201/70709 ,  H04L1/0072 ,  H04L1/20 ,  H04L1/201 ,  H04W52/12 ,  H04W52/20 ,  H04W52/44

Abstract: In a method of detecting whether a transmitted data frame is a discontinuous transmission (DTX) frame, a signal metric corresponding to the transmitted data frame is generated in a decoding operation used to decode the data frame from a signal carrying the frame that is received by a base station receiver. A signal energy of the transmitted data frame is determined based on the signal metric, and used for determining whether the transmitted data frame is a DTX frame.

Abstract translation: 在检测发送的数据帧是不连续发送（DTX）帧的方法中，在用于从携带有帧的信号解码数据帧的解码操作中生成对应于发送的数据帧的信号量度，该信号承载由 基站接收机。 基于信号度量来确定所发送的数据帧的信号能量，并且用于确定发送的数据帧是否是DTX帧。

公开(公告)号：US07768953B2

公开(公告)日：2010-08-03

申请号：US10273478

申请日：2002-10-18

Applicant: Stephen E. Terry ,  Robert A. DiFazio

Inventor： Stephen E. Terry ,  Robert A. DiFazio

IPC: G08C17/00

CPC classification number: H04B7/2618 ,  H04B7/2643 ,  H04B2201/70709 ,  H04J13/00 ,  H04W52/0216 ,  Y02D70/25 ,  Y02D70/449

Abstract: A system and method that achieve power savings by turning off all or some of the baseband processing for codes and timeslots that have not been transmitted due to full DTX. When full DTX is detected by reception of a Special Burst (SB), the receiver is turned off for all timeslots and frames for the duration of the Special Burst Scheduling Period (SBSP). The transmitter schedules transmissions following any idle period to start on the boundary of the SBSP. The receiver determines the SBSP and if the transmitter initiates transmissions according to SBSP by reception of several initial full DTX cycles.

Abstract translation: 通过关闭由于完整的DTX而未被发送的代码和时隙的全部或部分基带处理来实现功率节省的系统和方法。 当通过接收到特殊突发（SB）检测到完整的DTX时，在特殊突发调度周期（SBSP）的持续时间内，接收机关闭所有时隙和帧。 发射机在任何空闲时段之后调度传输，以在SBSP的边界开始。 接收机确定SBSP，并且发射机通过接收几个初始的完整DTX周期，根据SBSP发起发射。

公开(公告)号：US07746830B2

公开(公告)日：2010-06-29

申请号：US11183520

申请日：2005-07-18

Applicant: James A. Proctor, Jr.

Inventor： James A. Proctor, Jr.

IPC: H04B7/216

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 subscriber access unit includes a transceiver for providing wireless communication of digital signals. The digital signals are communicated to a base station using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals defined by orthogonal codes. Orthogonal subchannels are made available by the base station within each CDMA RF channel. A bandwidth manager is connected to the transceiver, and when the transceiver is actively sending data, at least one orthogonal subchannel is allocated by the base station on an as-needed basis. The number of orthogonal subchannels being allocated changes during a given session. The transceiver, when powered on but not actively sending data, provides an idling mode connection on a reverse link. The idling mode connection is based on an orthogonal subchannel shared with at least one other subscriber access unit, but utilizes different time slots of the shared orthogonal subchannel.

Abstract translation: 用户接入单元包括用于提供数字信号的无线通信的收发器。 使用由正交码定义的码分多址（CDMA）调制无线电信号，使用至少一个射频（RF）信道将数字信号传送到基站。 正交子信道由每个CDMA RF信道内的基站提供。 带宽管理器连接到收发器，并且当收发器正在主动发送数据时，基站根据需要分配至少一个正交子信道。 被分配的正交子信道的数量在给定会话期间改变。 收发器在上电但不主动发送数据时，在反向链路上提供空闲模式连接。 空闲模式连接基于与至少一个其他用户接入单元共享的正交子信道，但是利用共享正交子信道的不同时隙。

公开(公告)号：US20100062739A1

公开(公告)日：2010-03-11

申请号：US12535226

申请日：2009-08-04

Applicant: Kanji HOZUMI ,  Yukihiro OKADA ,  Yuichi KOMAGATA

Inventor： Kanji HOZUMI ,  Yukihiro OKADA ,  Yuichi KOMAGATA

IPC: H04B1/16

CPC classification number: H04B1/7073 ,  H04B1/7075 ,  H04B1/7113 ,  H04B1/7117 ,  H04B2201/70709

Abstract: A receiving apparatus for stopping intermittently reception processing including path detection, the receiving apparatus includes a control portion for shifting a window having a predetermined time width indicating a section in which the path detection is performed from a position before a reception stop in accordance with a state of travel of the receiving apparatus before the reception stop, and a path detecting portion for performing the path detection processing on a receive signal within the section expressed by the window after shifted by the control portion, after a lapse of the reception stop period.

Abstract translation: 一种用于停止包括路径检测的间歇接收处理的接收装置，所述接收装置包括控制部分，用于根据状态从接收停止之前的位置移动具有指示进行路径检测的部分的具有预定时间宽度的窗口 接收停止之后的接收装置的行进的路径检测处理;以及路径检测部分，用于在经过接收停止时段之后，通过由控制部分移位之后由窗口表示的部分内的接收信号执行路径检测处理。

公开(公告)号：US20090209272A1

公开(公告)日：2009-08-20

申请号：US12032467

申请日：2008-02-15

Applicant: Ravi Palanki ,  Jeremy H. Lin ,  Hemanth Sampath

Inventor： Ravi Palanki ,  Jeremy H. Lin ,  Hemanth Sampath

IPC: H04B1/50

CPC classification number: H04L27/2655 ,  H04B2201/70709 ,  H04L27/2649 ,  H04W52/0235 ,  Y02D70/00

Abstract: A communications system and method for a wireless mobile device is provided. The method includes performing sleep mode operations in a device and performing wake-up operations with one or more base stations in view of the sleep mode operations in the device. The method also includes demodulating a communications channel for the device during sleep mode operations in the device and prior to synchronizing with the base stations.

Abstract translation: 提供了一种用于无线移动设备的通信系统和方法。 该方法包括在设备中执行休眠模式操作并且考虑到设备中的睡眠模式操作来执行与一个或多个基站的唤醒操作。 该方法还包括在设备中的睡眠模式操作期间以及在与基站同步之前解调设备的通信信道。

公开(公告)号：US20090023392A1

公开(公告)日：2009-01-22

申请号：US11814585

申请日：2006-01-23

Applicant: Yousuke Iizuka ,  Shinsuke Ogawa ,  Takeshi Nakamori

Inventor： Yousuke Iizuka ,  Shinsuke Ogawa ,  Takeshi Nakamori

IPC: H04B15/00

CPC classification number: H04L25/03038 ,  H04B1/7113 ,  H04B2201/70709 ,  H04B2201/7071 ,  H04L2025/03726 ,  H04W52/0225 ,  Y02D70/1244 ,  Y02D70/40

Abstract: An increase in the power consumption and deterioration of the reception characteristic which can arise as a result of installing a multi-path interference removing apparatus are suppressed. The multi-path interference removing apparatus is operated only in the following cases: a case where a mobile communication terminal is in a communication active state, a case where communication takes place via a base station to which the adaptive modulation and coding technology is applied, a case where the number of reception paths of the mobile communication terminal is two or more paths, a case where the speed of motion of the mobile communication terminal is 60 km/h or less, and a case where the Signal to Interference power Ratio is 8 dB or more.

Abstract translation: 能够抑制作为安装多路径干扰去除装置而导致的功率消耗的增加和接收特性的劣化。 多路径干扰去除装置仅在以下情况下操作：移动通信终端处于通信活动状态的情况，通过应用自适应调制和编码技术的基站进行通信的情况， 移动通信终端的接收路径的数量是两条以上路径的情况，移动通信终端的移动速度为60km / h以下的情况，信号干扰功率比为 8 dB以上。

公开(公告)号：US07480280B2

公开(公告)日：2009-01-20

申请号：US11183677

申请日：2005-07-18

Applicant: James A. Proctor, Jr.

Inventor： James A. Proctor, Jr.

IPC: H04B7/216 ,  H04J3/216

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 subscriber access unit includes a transceiver for providing wireless communication of digital signals. The digital signals are communicated to a base station using at least one radio frequency (RF) channel via Code Division Multiple Access (CDMA) modulated radio signals. Subchannels are made available by the base station within each CDMA RF channel. A bandwidth manager is connected to the transceiver, and is allocated available subchannels by the base station on an as-needed basis, with a number of allocated subchannels changing during a given session. The transceiver, when powered on but not actively sending data, provides an idling mode connection on a reverse link to the base station. The idling mode connection enables subchannels to be reallocated without reestablishing a bit synchronization with the base station.

Abstract translation: 用户接入单元包括用于提供数字信号的无线通信的收发器。 通过码分多址（CDMA）调制的无线电信号，使用至少一个射频（RF）信道将数字信号传送到基站。 每个CDMA RF信道内的基站使子信道可用。 带宽管理器连接到收发器，并且由基站根据需要分配可用的子信道，在给定会话期间多个分配的子信道改变。 收发器在上电但不主动发送数据时，在与基站的反向链路上提供空闲模式连接。 空闲模式连接使得子信道被重新分配，而不重新建立与基站的位同步。

公开(公告)号：US07400667B2

公开(公告)日：2008-07-15

申请号：US11808607

申请日：2007-06-12

Applicant: Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

Inventor： Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

IPC: H04L27/00

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

Abstract: A receiver for the CDMA system which reduces power consumption during a suspension period of intermittent receiving operation by monitoring a suspension period by a low-power timer so that a VC-TCXO, reference signal group generation and receiving units are turned off and a modem unit is set to a sleep state. Upon resumption of receiving operation, a high-accuracy timer is started to count a time period and part of a received signal is stored. A PN code phase of stored data is calculated during the time period to obtain an indication value for phase deviation. State vectors for short and long codes and a further reception time are calculated based on the indication value. When the high-accuracy timer counts the time period and produces 0V(d), demodulation operation by a rake demodulation, demultiplexing, and descrambler units is started and is continued during the reception time.