公开(公告)号：US20100086011A1

公开(公告)日：2010-04-08

申请号：US12265987

申请日：2008-11-06

Applicant: TSU-CHUN LIU

Inventor： TSU-CHUN LIU

IPC: H04B1/38 ,  H04L27/06 ,  H03D1/00

CPC classification number: H04L27/01 ,  H04L1/0053 ,  H04L1/201

Abstract: A transceiver apparatus, a receiver and a power saving method thereof are provided. The receiver includes an analog-to-digital converter, an equalizer, a slicer, a delay unit, a decoder, a select unit and a control unit. The analog-to-digital converter transforms a received signal into a digital signal. The equalizer adjusts the digital signal to generate an equalized signal. The slicer receives and slices the equalized signal and generates a sliced signal. The delay unit delays the sliced signal. The decoder determines whether to decode the equalized signal or not according the control signal. The select unit selects one of the output of the delayed sliced signal and the output of the decoder to be an output signal according to a second control signal. The control unit determines whether to enable the control signal and the second control signal according to the state of the sliced signal and the output signal.

Abstract translation: 提供收发器装置，接收器和省电方法。 接收机包括模数转换器，均衡器，限幅器，延迟单元，解码器，选择单元和控制单元。 模数转换器将接收的信号转换为数字信号。 均衡器调整数字信号以产生均衡的信号。 切片器接收并切片均衡信号并产生切片信号。 延迟单元延迟切片信号。 解码器根据控制信号确定是否解码均衡信号。 选择单元根据第二控制信号选择延迟分片信号的输出和解码器的输出之一作为输出信号。 控制单元根据分片信号和输出信号的状态确定是否启用控制信号和第二控制信号。

公开(公告)号：US07664190B1

公开(公告)日：2010-02-16

申请号：US12185232

申请日：2008-08-04

Applicant: Che-Li Lin

Inventor： Che-Li Lin

IPC: H04K1/10

CPC classification number: H04L27/2647 ,  H04B17/318 ,  H04L1/0041 ,  H04L1/0053 ,  H04L1/201 ,  H04L25/0204 ,  H04L25/03006

Abstract: A method for dynamically adjusting the power consumption of a multi-carrier receiver and a multi-carrier receiver with dynamically power adjustment. The method includes receiving a multi-carrier signal, wherein the multi-carrier signal comprises a plurality of sub-carriers. Channel characteristics of each sub-carrier are estimated according to the demodulated multi-carrier signal. ICI strength is estimated from the demodulated multi-carrier signal. A system performance is detected. The estimated ICI is subtracted when the ICI strength exceeds an ICI threshold and the system performance is less than a system performance threshold. The demodulated multi-carrier signal is then equalized is based on the estimated channel characteristics, and the system performance is updated according to the equalized multi-carrier signal.

Abstract translation: 一种动态调整多载波接收机和多载波接收机的功耗的方法。 该方法包括接收多载波信号，其中多载波信号包括多个子载波。 根据解调的多载波信号来估计每个子载波的信道特性。 从解调的多载波信号估计ICI强度。 检测到系统性能。 当ICI强度超过ICI阈值并且系统性能小于系统性能阈值时，减去估计的ICI。 然后，解调的多载波信号基于估计的信道特性进行均衡，并且根据均衡的多载波信号来更新系统性能。

公开(公告)号：US07606705B2

公开(公告)日：2009-10-20

申请号：US10577394

申请日：2004-01-05

Applicant: Phillip Marc Johnson ,  Ramanathan Asokan

Inventor： Phillip Marc Johnson ,  Ramanathan Asokan

IPC: G10L19/02

CPC classification number: H04L1/0046 ,  H04L1/0038 ,  H04L1/0054 ,  H04L1/0075 ,  H04L1/20 ,  H04L1/201

Abstract: Disclosed is a system and method for channel decoding speech frames in a receiver capable of multiple (M) codec modes, wherein channel encoded speech frames include an inband bit portion and a speech portion. An inband bit decoder decodes the inband bit portion (700) of a received frame to obtain confidence levels associated with each of the M codec modes. Using these confidence levels, the codec modes are ordered from most to least likely. The speech frame is then decoded by a channel decoder using the most likely codec mode (704). A frame determination check (720) is performed to determine the quality of the decoded speech frame. If the decoded speech frame is determined to be of poor quality, then the channel decoding process is repeated using the next most likely codec mode (736) corresponding to the next highest inband bit decoding confidence level. This process is repeated until a good speech frame is decoded or some exit criteria is reached.

Abstract translation: 公开了一种用于在具有多（M）个编解码器模式的接收机中对语音帧进行信道解码的系统和方法，其中信道编码语音帧包括带内比特部分和语音部分。 带内位解码器对接收到的帧的带内比特部分（700）进行解码以获得与M个编解码器模式中的每一个相关联的置信度。 使用这些置信水平，编解码器模式从大多数到最不可能排序。 然后，语音帧由使用最可能的编解码器模式（704）的信道解码器解码。 执行帧确定检查（720）以确定解码的语音帧的质量。 如果解码的语音帧被确定为质量差，则使用对应于下一个最高带内位解码置信水平的下一个最可能的编解码器模式（736）重复信道解码过程。 重复此过程，直到解码好的语音帧或达到一些退出标准。

公开(公告)号：US07590096B2

公开(公告)日：2009-09-15

申请号：US10938445

申请日：2004-09-09

Applicant: Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

Inventor： Khaled H. El-Maleh ,  Eddie-Lun Tik Choy ,  Arasanipalai K. Ananthapadmanabhan ,  Andrew P. DeJaco ,  Pengjun Huang

IPC: H04B7/216 ,  G10L19/12 ,  H04L27/06

CPC classification number: H04L1/08 ,  H04L1/0046 ,  H04L1/201

Abstract: A system and method for detection of rate determination algorithm errors in variable rate communications system receivers. The disclosed embodiments prevent rate determination algorithm errors from causing audible artifacts such as screeches or beeps. The disclosed system and method detects frames with incorrectly determined data rates and performs frame erasure processing and/or memory state clean up to prevent propagation of distortion across multiple frames. Frames with incorrectly determined data rates are detected by checking illegal rate transitions, reserved bits, validating unused filter type bit combinations and analyzing relationships between fixed code-book gains and linear prediction coefficient gains.

公开(公告)号：US07505534B1

公开(公告)日：2009-03-17

申请号：US10690604

申请日：2003-10-23

Applicant: Guoqiang Xue ,  Xixlan Chen

Inventor： Guoqiang Xue ,  Xixlan Chen

IPC: H03D1/00

CPC classification number: H04L1/20 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/201

Abstract: This invention enables determining whether a received frame is an erasure, a DTX mode frame or a CONT mode frame, using a metric m derived from the log likelihood ratio (LLR). The new metric is obtained by calculating the mean for the LLRs for a frame; a threshold T for this metric is also established. A received frame is declared a CONT frame if the CRC value indicates a successfully recovered frame, and m>T. A received frame is a DTX frame if m T. The mean absolute LLR may also be used for determining the transmission rate of the system. In this case, a voice frame is decoded for all rates available; the transmission rate is that which corresponds to a passed CRC and has the highest m.

Abstract translation: 本发明能够使用从对数似然比（LLR）导出的度量m来确定接收到的帧是否为擦除，DTX模式帧还是CONT模式帧。 通过计算帧的LLR的平均值来获得新的度量; 也建立了该度量的阈值T. 如果CRC值表示成功恢复帧，则m> T，则将接收到的帧声明为CONT帧。 如果m T，则声明一个帧被擦除。 平均绝对LLR也可用于确定系统的传输速率。 在这种情况下，对所有可利用的速率解码语音帧; 传输速率是对应于通过的CRC并且具有最高的m的传输速率。

公开(公告)号：US20060268336A1

公开(公告)日：2006-11-30

申请号：US11441713

申请日：2006-05-25

Applicant: Hidenori Sakaniwa ,  Atsushi Koike ,  Mitsuhiro Kitani

Inventor： Hidenori Sakaniwa ,  Atsushi Koike ,  Mitsuhiro Kitani

IPC: G06F3/12

CPC classification number: H04M1/72569 ,  H04L1/0045 ,  H04L1/20 ,  H04L1/201

Abstract: In a wireless communication terminal, information from a wireless communication unit is decoded by a communication control unit and analysis information is acquired. A content reception judgment unit instructs the communication control unit to terminate a content receiving process if a mobile radio environment corresponding to transmission rate information of the contents, included in the analysis information, is below a content reception threshold stored in a content reception threshold storage unit. Thus, the wireless communication terminal can judge that the possibility of a failed reception is high before content reception, and needless power consumption can be prevented and power consumption reduced by not performing reception.

Abstract translation: 在无线通信终端中，来自无线通信单元的信息由通信控制单元解码，获取分析信息。 如果与包含在分析信息中的内容的传输速率信息相对应的移动无线电环境低于存储在内容接收阈值存储单元中的内容接收阈值，则内容接收判断单元指示通信控制单元终止内容接收处理 。 因此，无线通信终端可以在内容接收之前判断接收失败的可能性高，并且可以防止不必要的功耗，并且通过不执行接收来降低功耗。

公开(公告)号：US20060234752A1

公开(公告)日：2006-10-19

申请号：US11376772

申请日：2006-03-15

Applicant: Murat Mese ,  Arak Sutivong

Inventor： Murat Mese ,  Arak Sutivong

IPC: H04B7/00

CPC classification number: H04W52/362 ,  H04L1/0045 ,  H04L1/201 ,  H04W52/243 ,  H04W52/40

Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. This may be done by combining interference information from multiple base stations.

Abstract translation: 描述了用于调整发射功率以减轻对服务基站的扇区内干扰和对邻近基站的扇区间干扰的技术。 这可以通过组合来自多个基站的干扰信息来完成。

公开(公告)号：US20060187888A1

公开(公告)日：2006-08-24

申请号：US11381040

申请日：2006-05-01

Applicant: Dayong Chen

Inventor： Dayong Chen

IPC: H04B7/216

CPC classification number: H04L1/0047 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/20 ,  H04L1/201

Abstract: A received information signal is decoded to obtain the received information and to produce at least one feature of the received information signal. The received information signal is preliminarily classified as containing a normal burst or a truncated burst based upon the at least one feature, to obtain a preliminary classification. Cyclic redundancy checking of the received information that is decoded is performed. The received information signal is then further classified as containing a normal burst or a truncated burst based upon the preliminary classification and whether the cyclic redundancy checking is valid, to obtain a further classification. The received information signal may be still further classified as containing a normal burst or a truncated burst based upon the further classification and at least one transition rule for normal bursts and truncated bursts between the received information signal and a previously received information signal.

Abstract translation: 对接收到的信息信号进行解码以获得所接收的信息并产生所接收的信息信号的至少一个特征。 所接收的信息信号基于至少一个特征被初步分类为包含正常突发或截断突发，以获得初步分类。 执行被解码的接收信息的循环冗余校验。 接收到的信息信号随后根据初步分类进一步分类为包含正常突发或截断突发，以及循环冗余校验是否有效，以获得进一步的分类。 所接收的信息信号可以进一步分类为包含基于进一步分类的正常突发或截断突发，以及用于接收的信息信号和先前接收到的信息信号之间的正常突发和截断突发的至少一个转换规则。

公开(公告)号：US20060174179A1

公开(公告)日：2006-08-03

申请号：US11049991

申请日：2005-02-02

Applicant: Arun Visvanathan ,  Amit Butala ,  Parvathanathan Subrahmanya

Inventor： Arun Visvanathan ,  Amit Butala ,  Parvathanathan Subrahmanya

IPC: H03M13/00

CPC classification number: H04W52/12 ,  H04B1/7172 ,  H04L1/20 ,  H04L1/201 ,  H04L1/208 ,  H04W52/18 ,  H04W52/20 ,  H04W52/24 ,  H04W52/44

Abstract: To perform erasure detection for an intermittently active transport channel with unknown format, a receiver determines an energy metric and a symbol error rate (SER) for a received block with CRC failure. The receiver computes uncorrelated random variables u and v for the received block based on the energy metric and SER, the estimated means and standard deviations of the energy metric and SER, and a correlation coefficient indicative of the correlation between the energy metric and SER. The receiver then evaluates the uncorrelated random variables u and v based on at least one decision criterion and declares the received block to be an erased block or a DTX block based on the result of the evaluation. The decision criterion may be defined based on a target probability of false alarm and adjusted based on another metric, such as a zero state bit, for the received block.

Abstract translation: 为了对具有未知格式的间歇活动传输信道执行擦除检测，接收机确定具有CRC故障的接收块的能量度量和符号错误率（SER）。 接收机基于能量度量和SER，能量度量和SER的估计平均值和标准偏差以及表示能量度量与SER之间的相关性的相关系数，计算接收块的不相关随机变量u和v。 然后，接收机基于至少一个决策标准来评估不相关的随机变量u和v，并且基于评估结果将接收到的块声明为擦除块或DTX块。 可以基于目标误报率概率来定义判定标准，并且基于接收块的另一个度量（例如零状态位）进行调整。

公开(公告)号：US07054284B2

公开(公告)日：2006-05-30

申请号：US09339342

申请日：1999-06-23

Applicant: Yu-Cheun Jou ,  Edward G. Tiedemann, Jr.

Inventor： Yu-Cheun Jou ,  Edward G. Tiedemann, Jr.

IPC: H04Q7/00

CPC classification number: H04W52/282 ,  H04B17/382 ,  H04L1/20 ,  H04L1/201 ,  H04W52/288

Abstract: The present invention is a novel and improved method and apparatus for supervising a potentially gated channel in a wireless communication system. The first method is an extension of the method used in IS-95 with empty frames simply ignored, but with potentially different thresholds. The mobile station maintains a counter of consecutive bad frames, COUNT1, and a counter of consecutive good frames, COUNT2. COUNT1 and COUNT2 are set to zero at the beginning of a call. For each frame received, the mobile station determines if it is a good frame, a bad frame, or an empty frame. If the received frame is a good frame, COUNT1 is reset to zero and COUNT2 is incremented by 1. If the received frame is a bad frame, COUNT1 is incremented by one and COUNT2 is reset to zero. If the received frame is an empty frame, COUNT1 and COUNT2 are unchanged. If COUNT1 reaches a threshold value, TH1, the mobile station shall disable its transmitter. Thereafter, if COUNT2 reaches a threshold value, TH2, the mobile station shall re-enable its transmitter. The mobile station resets its fade timer to X seconds whenever COUNT2 is greater than or equal to TH3.

Abstract translation: 本发明是一种用于在无线通信系统中监视潜在门控信道的新颖和改进的方法和装置。 第一种方法是在IS-95中使用的方法的扩展，其中空帧仅被忽略，但具有潜在的不同阈值。 移动台维持连续的不良帧COUNT 1的计数器和连续的良好帧的计数器COUNT 2。 在调用开始时，COUNT 1和COUNT 2设置为零。 对于接收到的每个帧，移动台确定它是否是良好帧，坏帧或空帧。 如果接收到的帧是一个好的帧，则将COUNT 1复位为零，并且COUNT 2递增1.如果接收到的帧是坏帧，则COUNT 1增加1，并且COUNT 2被重置为零。 如果接收到的帧是空帧，则COUNT 1和COUNT 2不变。 如果COUNT 1达到阈值TH1，则移动台将禁用其发射机。 此后，如果COUNT 2达到阈值TH2，则移动台应重新使能其发射机。 当COUNT 2大于或等于TH3时，移动台将其衰落定时器复位为X秒。