公开(公告)号：WO2008127294A1

公开(公告)日：2008-10-23

申请号：PCT/US2007/022324

申请日：2007-10-19

Applicant: SCHRADER ELECTRONICS LTD. ,  REID, Ivan ,  MACKEL, Peter ,  CASKEY, David

Inventor： REID, Ivan ,  MACKEL, Peter ,  CASKEY, David

IPC: H04L1/00 ,  B60C23/04

CPC classification number: B60C23/0408 ,  B60C23/0462 ,  H03M5/12 ,  H03M13/09 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/201 ,  H04L25/4904

Abstract: Methods for detecting and correcting data errors in an RF data link include identifying valid data frames and corrupted data frames by measuring a data corruption level for each transmitted data frame, comparing the measured data corruption level for each corrupted data frame to a data corruption threshold, reconstructing the corrupted data frames having a data corruption level below the data corruption threshold, reconstructing the data block using data from valid and reconstructed data frames, and/or verifying the data in the reconstructed data block.

Abstract translation: 用于检测和校正RF数据链路中的数据错误的方法包括：通过测量每个发送的数据帧的数据损坏级别来识别有效数据帧和损坏的数据帧，将每个损坏的数据帧的测量数据损坏级别与数据损坏阈值进行比较， 重建具有低于数据破坏阈值的数据损坏级别的损坏的数据帧，使用来自有效和重建的数据帧的数据重构数据块，和/或验证重构的数据块中的数据。

公开(公告)号：WO2008105418A1

公开(公告)日：2008-09-04

申请号：PCT/JP2008/053318

申请日：2008-02-26

Applicant: 株式会社 エヌ・ティ・ティ・ドコモ ,  石井 啓之 ,  ウメシュ アニール

Inventor： 石井 啓之 ,  ウメシュ アニール

IPC: H04Q7/36 ,  H04J3/16 ,  H04J1/00 ,  H04J11/00

CPC classification number: H04W72/0406 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0035 ,  H04L1/1607 ,  H04L1/1887 ,  H04L1/201 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0082 ,  H04L5/0085 ,  H04L5/16 ,  H04W68/005 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/1273 ,  H04W74/0833 ,  H04W88/08

Abstract: 　ユーザ装置と下りリンクの共有チャネルを用いて通信を行う基地局装置に、同期信号、共通制御チャネル、報知チャネル、ページングチャネル、ＭＢＭＳチャネル、ランダムアクセス応答チャネルの少なくとも１つに無線リソースブロックを割り当てた後に、前記共有チャネルに対して無線リソースブロックを割り当てる無線リソース割り当て手段を備えることにより達成される。

Abstract translation: 用于通过使用下行链路共享信道与用户设备通信的基站设备包括无线资源分配装置，用于将无线资源块分配给同步信号信道，公共控制信道，报告信道，寻呼信道， MBMS信道和随机接入响应信道，然后将无线资源块分配给共享信道。

公开(公告)号：WO2007049016A1

公开(公告)日：2007-05-03

申请号：PCT/GB2006/003934

申请日：2006-10-23

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  HUMPHREY, Leslie, Derek ,  WALLACE, Andrew, David

Inventor： HUMPHREY, Leslie, Derek ,  WALLACE, Andrew, David

IPC: H04L5/14 ,  H04L1/00

CPC classification number: H04L1/0009 ,  H04L1/0054 ,  H04L1/0071 ,  H04L1/201 ,  H04L1/206 ,  H04L27/2602

Abstract: Following a transmission comprising a plurality of symbols, an error measurement is generated for each symbol, so that one may distinguish between symbols having a relatively low error and symbols having a relatively high error. A bit rate to be used for subsequent transmission is determined as a function of error measurements of those symbols that have relatively low error and as a function also of the proportion of symbols having a relatively high error, such that the bit rate reduces as the proportion increases. Measurement of the error rate and/or the durations of high and low error conditions may also be used to set other transmission parameters such as error-correcting code and interleaver settings.

Abstract translation: 在包括多个符号的传输之后，对每个符号产生误差测量，使得可以区分具有相对低的误差的符号和具有相对高的误差的符号。 用于后续发送的比特率被确定为具有相对低的误差的那些符号的误差测量的函数，并且还具有具有相对高的误差的符号的比例的函数，使得比特率随着比例而降低 增加。 错误率和/或高和低误差条件的持续时间的测量也可用于设置其他传输参数，例如纠错码和交织器设置。

公开(公告)号：WO2006107556A1

公开(公告)日：2006-10-12

申请号：PCT/US2006/009395

申请日：2006-03-16

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： LEONARD, Eric, David

IPC: H04L1/20 ,  H04L1/00

CPC classification number: H04L1/20 ,  H04L1/201 ,  H04W52/44

Abstract: A method of adaptively determining a threshold for determining whether an error associated with a frame is an erasure or the result of a discontinuous transmission (DTX) uses a sample set of recently received frames yet avoids undesirable influences on the threshold that otherwise might be caused by the number of erasures in the sample set. A disclosed example uses a histogram-based approach and a simulated sort through the histogram to determine an appropriate threshold value. In a disclosed example the lesser of a bad frame threshold guideline value and a good frame threshold guideline value provide the threshold used to distinguish between a DTX and an erasure.

Abstract translation: 一种自适应地确定用于确定与帧相关联的错误是否为擦除或不连续传输（DTX）的结果的阈值的方法，其使用最近接收到的帧的采样集合，但是避免了对阈值的不期望的影响，否则可能由 样本集中的擦除次数。 公开的示例使用基于直方图的方法和通过直方图的模拟排序来确定适当的阈值。 在公开的示例中，较差的帧阈值准则值和良好的帧阈值准则值提供用于区分DTX和擦除的阈值。

公开(公告)号：WO2004075496A3

公开(公告)日：2005-06-09

申请号：PCT/US2004004790

申请日：2004-02-18

Applicant: QUALCOMM INC ,  MALLADI DURGA PRASAD ,  CHEN TAO ,  WEI YONGBIN

Inventor： MALLADI DURGA PRASAD ,  CHEN TAO ,  WEI YONGBIN

IPC: H04B7/00 ,  H04B7/216 ,  H04B17/00 ,  H04L1/00 ,  H04L12/56 ,  H04Q7/38

CPC classification number: H04L1/0039 ,  H04L1/201

Abstract: Systems and methods for evaluating packets and frames in a wireless communication system having multiple reverse-link channels including a spontaneous, burst oriented transmission channel and its corresponding rate indicator channel. One embodiment comprises a base station monitoring the rate indicator channel(510), decoding the rate indicator channel using a maximum likelihood decoder and detecting the presence of a packet on the rate indicator channel by comparing a likelihood with a threshold(520), and analyzing the validity of a frame on the burst oriented channel based on the presence and content of packets received on the rate indicator channel (530).

Abstract translation: 在具有多个反向链路信道的无线通信系统中评估分组和帧的系统和方法，包括自发的突发定向传输信道及其对应的速率指示信道。 一个实施例包括监视速率指示符信道（510）的基站，使用最大似然解码器解码速率指示符信道，并通过将似然率与阈值（520）进行比较来检测速率指示符信道上的分组的存在（520） 基于在速率指示信道（530）上接收到的分组的存在和内容，基于突发定向信道上的帧的有效性。

公开(公告)号：WO2004054311A3

公开(公告)日：2004-08-26

申请号：PCT/US0339497

申请日：2003-12-10

Applicant: QUALCOMM INC

Inventor： CHEN QINGXIN ,  PATEL SHIMMAN

IPC: H04W24/02 ,  H04L1/00 ,  H04L1/20 ,  H04Q7/38

CPC classification number: H04L1/0061 ,  H04L1/0072 ,  H04L1/20 ,  H04L1/201

Abstract: Techniques to detect for DTX frames in a "primary" transmission that may be sent in a non-continuous manner using a "secondary" transmission that is sent during periods of no transmission for the primary transmission. The primary and secondary transmissions may be the ones sent on the F-DCCH and Forward Power Control Subchannel, respectively, in an IS-2000 system. In one method, a determination is first made whether or not a frame received for the primary transmission in a particular frame interval is a good frame (e.g., based on CRC). If the received frame is not a good frame, then a determination is next made whether the received frame is a DTX frame or an erased frame based on a number of metrics determined for the primary and secondary transmissions. The metrics may include symbol error rate of the received frame, secondary transmission (e.g., PC bit) energy, and received frame energy.

Abstract translation: 在“主”传输中检测可以以非连续方式发送的DTX帧的技术，使用在主传输的无传输期间发送的“次”传输。 主要和次要传输可以分别是在IS-2000系统中在F-DCCH和前向功率控制子信道上发送的。 在一种方法中，首先确定在特定帧间隔中为主传输接收的帧是否是良好帧（例如，基于CRC）。 如果接收到的帧不是良好的帧，则接着确定接收到的帧是否是基于针对主传输和次传输确定的度量的数目的DTX帧或已擦除的帧。 度量可以包括接收到的帧的符号错误率，二次传输（例如，PC位）能量和接收到的帧能量。

公开(公告)号：WO2004066546A1

公开(公告)日：2004-08-05

申请号：PCT/IB2004/000048

申请日：2004-01-05

Applicant: SONY ERICSSON MOBILE COMMUNICATIONS AB ,  JOHNSON, Phillip, Marc ,  ASOKAN, Ramanathan

Inventor： JOHNSON, Phillip, Marc ,  ASOKAN, Ramanathan

IPC: H04L1/00

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：WO2004054311A2

公开(公告)日：2004-06-24

申请号：PCT/US2003/039497

申请日：2003-12-10

Applicant: QUALCOMM, INCORPORATED

Inventor： CHEN, Qingxin ,  PATEL, Shimman

IPC: H04Q7/38

CPC classification number: H04L1/0061 ,  H04L1/0072 ,  H04L1/20 ,  H04L1/201

Abstract: Techniques to detect for DTX frames in a "primary" transmission that may be sent in a non-continuous manner using a "secondary" transmission that is sent during periods of no transmission for the primary transmission. The primary and secondary transmissions may be the ones sent on the F-DCCH and Forward Power Control Subchannel, respectively, in an IS-2000 system. In one method, a determination is first made whether or not a frame received for the primary transmission in a particular frame interval is a good frame (e.g., based on CRC). If the received frame is not a good frame, then a determination is next made whether the received frame is a DTX frame or an erased frame based on a number of metrics determined for the primary and secondary transmissions. The metrics may include symbol error rate of the received frame, secondary transmission (e.g., PC bit) energy, and received frame energy.

Abstract translation: 在“主”传输中检测可以以非连续方式发送的DTX帧的技术，使用在主传输的无传输期间发送的“次”传输。 主要和次要传输可以分别是在IS-2000系统中在F-DCCH和前向功率控制子信道上发送的。 在一种方法中，首先确定在特定帧间隔中为主传输接收的帧是否是良好帧（例如，基于CRC）。 如果接收到的帧不是良好的帧，则接着确定接收到的帧是否是基于针对主传输和次传输确定的度量的数目的DTX帧或已擦除的帧。 度量可以包括接收到的帧的符号错误率，二次传输（例如，PC位）能量和接收到的帧能量。

公开(公告)号：WO2003065613A1

公开(公告)日：2003-08-07

申请号：PCT/US2003/002914

申请日：2003-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： LIN, Yu-Chuan

IPC: H04B7/005

CPC classification number: H04L1/20 ,  H04B1/7115 ,  H04L1/201 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0245 ,  H04W52/286 ,  H04W52/288 ,  H04W52/44 ,  Y02D70/25 ,  Y02D70/40

Abstract: Novel techniques are disclosed for detecting discontinuous transmission (DTX) over a communication channel. A received data frame is characterized as one of a Good frame, Erasure, or DTX. If a Good frame is not initially detected, a multi-dimensional quality metric is used to characterize the received frame as either an Erasure or DTX. A two dimensional quality metric may be generated using energy per bit to noise power ratio as a first dimension and re-encoded symbol error count as a second dimension. Alternatively, re-encoded symbol energy may be used as the second dimension of the quality metric. The communication channel may be a CDMA wireless communication channel capable of DTX and the device may be a base station, base station controller, or mobile station.

Abstract translation: 公开了用于通过通信信道检测不连续传输（DTX）的新技术。 接收到的数据帧被表征为Good帧，Erasure或DTX之一。 如果最初没有检测到好的帧，则使用多维质量度量来将接收的帧表征为擦除或DTX。 可以使用每比特噪声功率比的能量作为第一维度并且将重新编码的符号错误计数作为第二维度来生成二维质量度量。 或者，重新编码的符号能量可以用作质量度量的第二维度。 通信信道可以是能够进行DTX的CDMA无线通信信道，并且设备可以是基站，基站控制器或移动台。

公开(公告)号：WO02003588A2

公开(公告)日：2002-01-10

申请号：PCT/US2001/020819

申请日：2001-06-28

IPC: H04B7/26 ,  H04J3/14 ,  H04J3/17 ,  H04L1/20 ,  H04Q7/38

CPC classification number: H04L1/20 ,  H04J3/14 ,  H04J3/17 ,  H04L1/201

Abstract: A system and method for dectecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a pluralitz of frames (62); classifzing each of the frames (63); analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame (66). In the illustrative embodiment, the step of classifzing includes the step of error checking the frames using a cyclic redundancz check (CRC) error checking protocol. The received frames are classified as good frames (G), erasureframes (E), or discontinuous frames (D). A numerical value is assigned toe ach of the frames based on the classification thereof. Next, the frames are filtered tp provice an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmisson frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames of a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.

Abstract translation: 一种用于检测不连续传输（DTX）帧的系统和方法。 本发明的方法包括以多比特帧（62）发送的数据的步骤。 对每个框架进行分类（63）; 分析所接收数据的连续帧的数目的分类并提供与之相关的度量; 以及响应于所述度量，确定帧是不连续帧（66）。 在说明性实施例中，分类步骤包括使用循环冗余校验（CRC）错误检查协议对帧进行错误校验的步骤。 所接收的帧被分类为好帧（G），擦除帧（E）或不连续帧（D）。 基于其分类，将数值分配给帧。 接下来，对帧进行滤波处理，输出Yn = Yn-1 + Xn，其中'n'是帧号，Yn是给定帧n的滤波器输出，Yn-1是前一帧的滤波器输出，以及 Xn是输入帧流。 设置输出Yn的阈值以便于检测不连续的帧。 也就是说，当帧被分类为“擦除”并且滤波器输出超过阈值时，指示不连续传输帧的检测。 在不连续帧的检测中，帧的分类从“擦除”改变为“不连续”。 通过重新分类不正确分类的擦除帧，禁止移动接收机请求重发传输功率电平变化的帧。 因此，网络吞吐量和容量得到优化，系统功耗得以节省。