公开(公告)号：US20080056169A1

公开(公告)日：2008-03-06

申请号：US11759610

申请日：2007-06-07

Applicant: Ganesh Pattabiraman ,  John Burke

Inventor： Ganesh Pattabiraman ,  John Burke

IPC: 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：US20070264962A1

公开(公告)日：2007-11-15

申请号：US10586672

申请日：2005-01-21

Applicant: Tetsuo Ueno ,  Shigetaka Noguchi

Inventor： Tetsuo Ueno ,  Shigetaka Noguchi

IPC: H04B17/00 ,  H04B1/16 ,  H04B1/38

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

Abstract: A wireless communication apparatus receives an external signal, and includes (i) a received signal level determination section for detecting a power level of the received signal and (ii) a correlation detection/determination section for detecting a correlation associated with the received signal. Moreover, the wireless communication apparatus switches between reception standby states as required, the reception standby states, including: (a) a normal operation mode in which a shift to a reception state is determined in accordance with whether or not the correlation is detected by the correlation detection/determination section; and (b) a low power consumption mode in which the shift to the reception state is determined in accordance with whether or not a received signal power level is detected by the received signal level determination section. With this, power consumption can be reduced, but a range of reception power of a signal that can be received is not narrowed. That is, the power consumption of the communication apparatus can be reduced, and the communication apparatus is allowed to receive a signal whose reception power falls within a wide range.

Abstract translation: 无线通信装置接收外部信号，并且包括（i）用于检测接收信号的功率电平的接收信号电平确定部分和（ii）用于检测与接收信号相关联的相关性的相关检测/确定部分。 此外，无线通信装置根据需要切换接收待机状态，接收待机状态，包括：（a）根据是否检测到相关性来确定对接收状态的转移的正常操作模式 相关检测/确定部分; 以及（b）低功耗模式，其中根据接收信号电平确定部分是否检测到接收信号功率电平来确定向接收状态的转换。 由此，可以降低功耗，但是可以接收的信号的接收功率的范围不会变窄。 也就是说，可以减少通信装置的功耗，并且允许通信装置接收接收功率落在宽范围内的信号。

公开(公告)号：US07269203B2

公开(公告)日：2007-09-11

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: 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, 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t 4。

公开(公告)号：US20070060095A1

公开(公告)日：2007-03-15

申请号：US11228045

申请日：2005-09-15

Applicant: Parvathanathan Subrahmanya ,  Thejaswi Bharadwaj Madapushi Sheshadri ,  Vivek Chawla

Inventor： Parvathanathan Subrahmanya ,  Thejaswi Bharadwaj Madapushi Sheshadri ,  Vivek Chawla

IPC: H04B1/16 ,  H04B1/38 ,  H04M1/00

CPC classification number: H04L27/2278 ,  H04B1/7085 ,  H04B2201/70709 ,  H04L2027/003 ,  H04L2027/0034 ,  H04L2027/0065 ,  H04W52/0229 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/166 ,  Y02D70/24 ,  Y02D70/40

Abstract: Quick frequency tracking (QFT), quick time tracking (QTT), and non-causal pilot filtering (NCP) are used to detect sporadically transmitted signaling, e.g., paging indicators. For QFT, multiple hypothesized frequency errors are applied to an input signal to obtain multiple rotated signals. The energies of the rotated signals are computed. The hypothesized frequency error with the largest energy is provided as a frequency error estimate. For QTT, coherent accumulation is performed on the input signal for a first set of time offsets, e.g., early, on-time, and late. Interpolation, energy computation, and non-coherent accumulation are then performed to obtain a timing error estimate with higher time resolution. For NCP, pilot symbols are filtered with a non-causal filter to obtain pilot estimates for one antenna for non-STTD and for two antennas for STTD. The frequency and timing error estimates and the pilot estimates are used to detect the signaling.

Abstract translation: 使用快速频率跟踪（QFT），快速时间跟踪（QTT）和非因果导频滤波（NCP）来检测偶发地发送的信令，例如寻呼指示符。 对于QFT，将多个假设频率误差应用于输入信号以获得多个旋转信号。 计算旋转信号的能量。 提供具有最大能量的假设频率误差作为频率误差估计。 对于QTT，对于第一组时间偏移的输入信号执行相干累加，例如早，时，晚。 然后执行插值，能量计算和非相干累加，以获得具有更高时间分辨率的定时误差估计。 对于NCP，使用非因果滤波器对导频符号进行滤波，以获得用于非STTD的一个天线和用于STTD的两个天线的导频估计。 频率和定时误差估计和导频估计用于检测信令。

公开(公告)号：US07146151B2

公开(公告)日：2006-12-05

申请号：US10306492

申请日：2002-11-27

Applicant: Kazuhiro Arimitsu

Inventor： Kazuhiro Arimitsu

IPC: 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.

公开(公告)号：US07085312B2

公开(公告)日：2006-08-01

申请号：US10241484

申请日：2002-09-12

Applicant: Eiji Iimori ,  Masami Morimoto

Inventor： Eiji Iimori ,  Masami Morimoto

IPC: H04B1/69

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：US07035309B2

公开(公告)日：2006-04-25

申请号：US10026798

申请日：2001-12-27

Applicant: Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

Inventor： Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

IPC: H04Q7/20

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系统的接收机为了降低间歇接收操作的暂停时间段期间的功率消耗，通过低功率定时器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：US20060013163A1

公开(公告)日：2006-01-19

申请号：US11180789

申请日：2005-07-14

Applicant: Ji-Ha Lee ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Sung-Hwan Ong

Inventor： Ji-Ha Lee ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Sung-Hwan Ong

IPC: H04Q7/00

CPC classification number: H04B1/7115 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/70709

Abstract: An apparatus and a method for detecting traffic channel signal transmission in a rake receiver may advantageously ensure stable and accurate detection performance in performing continuous/discontinuous transmission detection of traffic channels with a rake receiver in a mobile communication system based upon CDMA 2000 standards by making sufficiently spaced distribution in traffic channel signal-to-noise ratios estimated in continuous/discontinuous transmission. The method includes compensating traffic channel signals according to fingers, respectively, by using estimated pilot channel signals; combining the compensated finger-based traffic channel signals and estimating signal-to-noise ratios for traffic channels; and comparing the estimated signal-to-noise ratios with a preset threshold value, respectively, to detect continuous or discontinuous transmission of the traffic channels based upon comparison results.

公开(公告)号：US20050164637A1

公开(公告)日：2005-07-28

申请号：US11086893

申请日：2005-03-21

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 ,  H04B7/00

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: Method for reducing power consumption in Bluetooth and CDMA modes of operation is disclosed. According to a disclosed embodiment, the time for a next scheduled CDMA wakeup process to be performed by a CDMA module is established. Thereafter, if the next CDMA wakeup process is scheduled to be performed before the next Bluetooth wakeup process, a Bluetooth wakeup process is synchronized to be performed by a Bluetooth module at the same time as the next CDMA wakeup process. Following, when the time arrives for the CDMA module to perform the next CDMA wakeup process, the Bluetooth module also performs the Bluetooth wakeup process.

Abstract translation: 公开了降低蓝牙和CDMA操作模式的功耗的方法。 根据所公开的实施例，建立由CDMA模块执行的下一个调度的CDMA唤醒过程的时间。 此后，如果下一个CDMA唤醒处理被调度为在下一个蓝牙唤醒处理之前执行，则蓝牙唤醒处理被同步以由蓝牙模块在下一个CDMA唤醒处理的同时进行。 以下，当CDMA模块执行下一个CDMA唤醒处理的时间到来时，蓝牙模块还执行蓝牙唤醒处理。

公开(公告)号：US20050094816A1

公开(公告)日：2005-05-05

申请号：US10700855

申请日：2003-11-04

Applicant: Bengt Lindoff ,  Johan Nilsson ,  Torgny Palenius

Inventor： Bengt Lindoff ,  Johan Nilsson ,  Torgny Palenius

IPC: H04L9/00 ,  H04K1/02

CPC classification number: H04B1/7103 ,  H04B2201/70701 ,  H04B2201/70709

Abstract: Methods and apparatus that improve interference (I) estimation in CDMA systems in which the DPCH is sorted under a scrambling code different from the scrambling code of a channel such as the CPICH are described. In such systems, DPCH I-estimation cannot be done by measuring on the CPICH and transforming to the DPCH due to the different interference situations on the two channels. Instead, the DPCH interference is estimated by using knowledge of empty channelization codes in the alternative or secondary scrambling code that can be used for I estimation, or using symbols (e.g., control symbols on the DPCCH) on the DPCH, or searching for an empty channelization code and using a found empty code for I-estimation. These techniques improve the SIR estimate in comparison to prior techniques and hence also improve the performance of power control, increasing the system's capacity.

Abstract translation: 描述了改善其中DPCH在不同于诸如CPICH之类的信道的扰码的扰码下分类的CDMA系统中的干扰（I）估计的方法和装置。 在这种系统中，DPCH I估计不能通过在CPICH上测量并且由于两个信道上的不同干扰情况而转换到DPCH来完成。 相反，通过使用可用于I估计的替代或辅助扰码中的空信道化码的知识或者使用DPCH上的符号（例如DPCCH上的控制符号）或搜索空的信道估计来估计DPCH干扰 通道化代码，并使用找到的空代码进行I估计。 与以前的技术相比，这些技术改进了SIR估计，从而也提高了功率控制的性能，从而提高了系统的容量。