公开(公告)号：US20050201283A1

公开(公告)日：2005-09-15

申请号：US11066551

申请日：2005-02-28

Applicant: Su-Jin Yoon ,  Hoon-Geun Song ,  Dong-Wook Park ,  Gin-Kyu Choi ,  Yong-Suk Moon

Inventor： Su-Jin Yoon ,  Hoon-Geun Song ,  Dong-Wook Park ,  Gin-Kyu Choi ,  Yong-Suk Moon

IPC: H04L1/00

CPC classification number: H04B1/707 ,  H04B2201/70705 ,  H04B2201/70722 ,  H04L1/0067 ,  H04L1/1819 ,  H04L1/1845

Abstract: A de-rate matching method and apparatus in a High Speed Downlink Packet Access (HSDPA) system are provided. In the de-rate matching apparatus and method, a collection buffer temporarily stores a received packet, a combining buffer stores the packet received from the collection buffer according to predetermined memory address information including information indicating the positions of bits punctured during the rate matching, a controller decodes high-speed shared common control channel (HS-SCCH) information including a predetermined hybrid automatic repeat request (HARQ) parameter received from the transmitter and provides overall control to de-rate matching between the collection buffer and the combining buffer, an address generator generates the memory address information based on the decoded HARQ parameter, an address buffer stores the memory address information, and a zero inserter initializes at least one of data stored at memory addresses of the combining buffer including memory addresses for the punctured, before the de-rate matching.

Abstract translation: 提供了一种高速下行链路分组接入（HSDPA）系统中的去速率匹配方法和装置。 在解速率匹配装置和方法中，收集缓冲器临时存储接收到的分组，组合缓冲器根据预定的存储器地址信息存储从收集缓冲器接收到的分组，该存储器地址信息包括指示在速率匹配期间打孔的位置的信息， 控制器解码包括从发送器接收的预定的混合自动重传请求（HARQ）参数的高速共享公共控制信道（HS-SCCH）信息，并提供对收集缓冲器和组合缓冲器之间的匹配进行去速率的总体控制，地址 发生器基于解码的HARQ参数产生存储器地址信息，地址缓冲器存储存储器地址信息，并且零插入器初始化存储在组合缓冲器的存储器地址处的数据中的至少一个，包括用于被删截的被删除的存储器地址 - 匹配。

公开(公告)号：US20050083901A1

公开(公告)日：2005-04-21

申请号：US11006388

申请日：2004-12-07

Applicant: Jae-Yoel Kim ,  Hee-Won Kang

Inventor： Jae-Yoel Kim ,  Hee-Won Kang

IPC: H03M13/00 ,  H04B1/707 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04J13/12 ,  H04L1/00 ,  H04L9/06 ,  H04Q7/38 ,  H04B7/216

CPC classification number: H04L1/0072 ,  H03M13/136 ,  H03M13/47 ,  H03M13/618 ,  H04B1/707 ,  H04B2201/70705 ,  H04J13/0048 ,  H04J13/12 ,  H04L1/0025 ,  H04L1/0028 ,  H04L1/0039 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057

Abstract: An apparatus and method for encoding/decoding a transport format combination indicator (TFCI) in a CDMA mobile communication system. In the TFCI encoding apparatus, a one-bit generator generates a sequence having the same symbols. A basis orthogonal sequence generator generates a plurality of basis orthogonal sequences. A basis mask sequence generator generates a plurality of basis mask sequences. An operation unit receives TFCI bits that are divided into a first information part representing biorthogonal sequence conversion, a second information part representing orthogonal sequence conversion, and a third information part representing mask sequence conversion and combines an orthogonal sequence selected from the basis orthogonal sequence based on the second information, a biorthogonal sequence obtained by combining the selected orthogonal sequence with the same symbols selected based on the first information part, and a mask sequence selected based on the biorthogonal sequence and the third information part, thereby generating a TFCI sequence.

公开(公告)号：US20040125864A1

公开(公告)日：2004-07-01

申请号：US10334292

申请日：2002-12-31

Inventor： Colin D. Frank

IPC: H04B001/69

CPC classification number: H04B1/707 ,  H04B2201/70705

Abstract: A spread spectrum receiver (124) for receiving and decoding a data frame having one of a plurality of coding rates is coupled to a rate determination device (132). The rate determination device (132) is coupled to receive a data frame coded at one of the plurality of coding rates and to receive symbol data from the receiver (124). The rate determination device (132) is adapted to determine a probability based at least upon an rate-based symbol repetition constraints within the data frame, wherein the probability is an indication of the rate at which the data frame is encoded.

Abstract translation: 用于接收和解码具有多个编码率中的一个的数据帧的扩展频谱接收机（124）被耦合到速率确定装置（132）。 速率确定装置（132）被耦合以接收以多个编码率之一编码的数据帧，并从接收器（124）接收符号数据。 速率确定装置（132）适于至少基于数据帧内的基于速率的符号重复约束来确定概率，其中概率是对数据帧进行编码的速率的指示。

公开(公告)号：US20040001534A1

公开(公告)日：2004-01-01

申请号：US10180188

申请日：2002-06-26

Inventor： George L. Yang

IPC: H04B001/707

CPC classification number: H04B1/707 ,  H04B1/7117 ,  H04B2201/70705

Abstract: A multi-channel direct sequence spread-spectrum communication system with the capability of automatic rate detection consists of a plurality of signal channels and a plurality of data channels. During signaling period, only the signaling channels corresponding to the desired symbol repetition and the data channels corresponding to the highest index among the indexes of all active data channels will be allowed to transmit. During data transmission period, only the active data channels will be allowed to transmit. Receiver will use the information provided in preamble signal and mid-amble signal to obtain the number of symbol repetition, the set of active data channels and etc, and to set up initial synchronization.

Abstract translation: 具有自动速率检测能力的多通道直接序列扩频通信系统由多个信道和多个数据信道组成。 在信令期间，仅允许对应于所需符号重复的信令信道和对应于所有活动数据信道的索引中的最高索引的数据信道进行发送。 在数据传输期间，只允许有效的数据信道进行传输。 接收机将使用前导信号和中置信号中提供的信息来获得码元重复次数，活动数据信道组等，并设置初始同步。

公开(公告)号：US06658076B1

公开(公告)日：2003-12-02

申请号：US09487892

申请日：2000-01-19

Applicant: Toshihiro Hayata

Inventor： Toshihiro Hayata

IPC: H04L2300

CPC classification number: H04B1/709 ,  H04B1/707 ,  H04B2201/70705

Abstract: In a spread spectrum receiver, a first despread signal is produced by a despreading circuit corresponding to a first symbol rate. The despreading circuit is responsive to a command signal for subsequently producing a second despread signal corresponding to the second symbol rate. A symbol rate estimation circuit is provided for estimating, from the first despread signal, the transmitted symbol rate of the spread spectrum signal as one of the first and second symbol rates. If the transmitted symbol rate is estimated as the first symbol rate, the despreading circuit continues producing the first despread signal. If the transmitted symbol rate is estimated as the second symbol rate, the estimation circuit supplies the command signal to the despreading circuit to produce the second despread signal. A decoding circuit decodes the first and second despread signals.

Abstract translation: 在扩频接收机中，第一解扩信号由对应于第一符号率的解扩电路产生。 解扩电路响应于命令信号，随后产生对应于第二符号率的第二解扩信号。 提供符号率估计电路，用于从第一去扩展信号估计作为第一和第二符号率之一的扩展频谱信号的传输符号率。 如果发送的符号率被估计为第一符号率，则解扩电路继续产生第一解扩信号。 如果发送的符号率被估计为第二符号率，则估计电路将该命令信号提供给解扩电路以产生第二解扩信号。 解码电路对第一和第二解扩信号进行解码。

公开(公告)号：US20030198210A1

公开(公告)日：2003-10-23

申请号：US10417586

申请日：2003-04-17

Applicant: InterDigital Technology Corporation

Inventor： John W. Haim

IPC: H04B007/216

CPC classification number: H04B7/2618 ,  H04B1/70735 ,  H04B7/2628 ,  H04B2201/70705 ,  H04J13/14

Abstract: In a communication station, such as a UE or Node B of a 3GPP system, where channelization coded signals are received on physical channels of at least one coded composite transport channel (CCTrCh) within timeslots of a system time frame, the actual number of channelization codes transmitted for the CCTrCh within a system time frame is determined. The transmitted channelization codes are then identified by performing a channelization code identification algorithm based on the determined number.

Abstract translation: 在诸如系统时间帧的时隙内的至少一个编码复合传输信道（CCTrCh）的物理信道上接收信道化编码信号的通信站（例如3GPP系统的UE或节点B）中，实际的信道化数目 确定在系统时间范围内为CCTrCh发送的代码。 然后通过基于确定的数量执行信道化码识别算法来识别发送的信道化码。

公开(公告)号：US06633601B1

公开(公告)日：2003-10-14

申请号：US09321699

申请日：1999-05-28

Applicant: Gordon Guowen Yang

Inventor： Gordon Guowen Yang

IPC: H04B169

CPC classification number: H04B1/707 ,  H04B2201/70705 ,  H04L1/0002

Abstract: A method and device for determining a frame rate of a data fame transmitted over a variable rate communication system. In one embodiment, the present invention receives demodulated soft symbols representing a data frame transmitted at a certain frame rate. The present invention then generates a plurality of decoded bit streams from the demodulated soft symbols, where each of the plurality of decoded bit streams is for testing one of a plurality of rate hypotheses for the frame rate of the data frame. The present invention next re-encodes each of the plurality of decoded bit streams to generate a plurality of re-encoded bit streams, each of which corresponds to a plurality of decoded bit streams.

Abstract translation: 一种用于确定通过可变速率通信系统传输的数据名称的帧速率的方法和装置。 在一个实施例中，本发明接收表示以某一帧速率发送的数据帧的解调的软符号。 然后，本发明从解调的软符号生成多个解码比特流，其中多个解码比特流中的每一个用于测试数据帧的帧速率的多个速率假设之一。 本发明接着重新编码多个解码比特流中的每一个，以产生多个重新编码的比特流，每个重新编码比特流对应于多个解码的比特流。

公开(公告)号：US20030128742A1

公开(公告)日：2003-07-10

申请号：US10220337

申请日：2002-12-09

Inventor： David Johnson

IPC: H04B001/69 ,  H04B001/707

CPC classification number: H04B1/7105 ,  H04B2201/70705 ,  H04J13/0044

Abstract: In mobile telecommunications systems, such as UMTS, user communications can be transmitted in parallel within a single timeslot by spreading the different user communications amongst a plurality of orthogonal spreading codes. Each spreading code has a characteristic spreading factor. The communications transmitted in each timeslot are joint detected and de-spread into the original user communications by a joint detection algorithm. There is provided a method of post-processing the results of the joint detection algorithm when the spreading factors are unknown. The method of post-processing operates without the need to apply the joint detection algorithm more than once. Consequently, spreading codes with different spreading factors can be used in one timeslot

Abstract translation: 在诸如UMTS的移动电信系统中，可以在单个时隙内并行发送用户通信，通过在多个正交扩展码之间扩展不同的用户通信。 每个扩展码具有特征扩展因子。 在每个时隙中发送的通信通过联合检测算法被联合检测和解扩展成原始用户通信。 提供了当扩频因子未知时，对联合检测算法的结果进行后处理的方法。 后处理的方法不需要多次应用联合检测算法。 因此，可以在一个时隙中使用具有不同扩频因子的扩展码

公开(公告)号：US06567466B1

公开(公告)日：2003-05-20

申请号：US09250744

申请日：1999-02-16

Applicant: Sameer V. Ovalekar ,  Xiao-An Wang

Inventor： Sameer V. Ovalekar ,  Xiao-An Wang

IPC: H04B1700

CPC classification number: H04L25/0262 ,  H04B1/707 ,  H04B2201/70705

Abstract: A method and apparatus are disclosed for determining the data rate of a received signal in a communication system utilizing code division multiple access (CDMA) techniques. The well-known Viterbi decoding-based rate detection approach is combined with the conventional repetition pattern-based rate detection approach. The hybrid approach possesses the advantages of both prior approaches, without their disadvantages. The computationally efficient repetition pattern-based data rate detection approach, while not as reliable as the Viterbi decoder-based data rate detection approach, provides reliable data rate detection most of the time. The repetition-pattern data rate detection approach is used as long as a predefined reliability metric is satisfied, and only uses the more computationally intensive Viterbi decoder-based data rate detection approach when detection reliability may be compromised. Under the hybrid rate detection scheme, a decision variable based on repetition patterns is initially formed and a decision is made on the data rate if the decision variable is in a reliable region. Otherwise, the Viterbi decoding-based rate detection scheme is employed.

Abstract translation: 公开了一种用于在利用码分多址（CDMA）技术的通信系统中确定接收信号的数据速率的方法和装置。 众所周知的基于维特比解码的速率检测方法与传统的基于重复模式的速率检测方法相结合。 混合方法具有两种现有方法的优点，没有其缺点。 基于计算效率的基于重复模式的数据速率检测方法虽然不如基于维特比解码器的数据速率检测方法那样可靠，但大多数时间提供了可靠的数据速率检测。 只要满足预定的可靠性度量，就使用重复模式数据速率检测方法，并且当检测可靠性可能受到损害时，仅使用基于维特比解码器的数据速率检测方法。 在混合速率检测方案下，最初形成基于重复模式的决策变量，并且如果判决变量在可靠区域中，则决定数据速率。 否则，采用基于维特比解码的速率检测方案。

公开(公告)号：US06542536B1

公开(公告)日：2003-04-01

申请号：US09441013

申请日：1999-11-16

Applicant: John Erik Hershey ,  John Anderson Fergus Ross ,  Naofal Mohammed Wassel Al-Dhahir ,  Mark Lewis Grabb ,  Michael James Hartman ,  Richard Louis Frey ,  John Anthony Esposito ,  Roy Marion LaRosa

Inventor： John Erik Hershey ,  John Anderson Fergus Ross ,  Naofal Mohammed Wassel Al-Dhahir ,  Mark Lewis Grabb ,  Michael James Hartman ,  Richard Louis Frey ,  John Anthony Esposito ,  Roy Marion LaRosa

IPC: H04B169

CPC classification number: H04L27/2608 ,  H04B1/707 ,  H04B2201/70705

Abstract: A spread spectrum communications system that is operable to provide user-selectable data transfer rates comprises a user station for generating an access request and a gateway server for receiving the access request. The gateway server includes a rate unit for comparing a requested rate to assigned rates, a selector for selecting an available user channel and an available signaling alphabet, and an allocation unit for assigning the carrier, user channel, and alphabet to the access request. One of several offered transfer rates is assigned to the available user channel. Each offered rate corresponds to a set of signaling alphabets with low cross-correlation for data transfer.

Abstract translation: 可操作以提供用户可选择的数据传输速率的扩频通信系统包括用于生成接入请求的用户站和用于接收接入请求的网关服务器。 网关服务器包括用于将请求速率与分配速率进行比较的速率单元，用于选择可用用户信道的选择器和可用信令字母表，以及用于将载波，用户信道和字母表分配给接入请求的分配单元。 几个提供的传输速率之一被分配给可用的用户信道。 每个提供的速率对应于用于数据传输的具有低互相关的一组信令字母。