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    Radio communication system and base station employing CDMA
    51.
    发明申请
    Radio communication system and base station employing CDMA 有权
    无线电通信系统和采用CDMA的基站

    公开(公告)号：US20070008935A1

    公开(公告)日：2007-01-11

    申请号：US11522962

    申请日：2006-09-19

    Applicant: Keijiro Take

    Inventor： Keijiro Take

    IPC: H04B7/216

    CPC classification number: H04J13/0077 ,  H04B2201/70703 ,  H04J13/004 ,  H04J13/0044 ,  H04J13/18 ,  H04J13/20 ,  H04W24/00 ,  H04W28/18 ,  H04W28/22 ,  H04W28/26 ,  H04W36/06 ,  H04W56/00 ,  H04W72/02 ,  H04W72/0466 ,  H04W76/10 ,  H04W88/08 ,  H04W88/12

    Abstract: A base station controller selects codes corresponding to rate information included in a new starting call message from a mobile station, and further selects codes assignable to the mobile station out of the selected codes as candidate codes. Then, the base station controller detects codes which meet both the characteristics of being at upper level of the candidate codes in the tree structure and being assignable to other mobile station, and further detects levels of the detected codes. Detected levels for all the candidate codes are compared to find a candidate code whose level is the lowest and to assign the candidate code to the mobile station sending the new starting call message.

    Abstract translation: 基站控制器从移动站中选择与包括在新的起始呼叫消息中的速率信息相对应的代码，并且进一步从所选择的代码中选择可分配给移动站的代码作为候选代码。 然后，基站控制器检测符合树结构中的候选代码的上位特性并可分配给其他移动台的代码，并进一步检测检测到的代码的级别。 对所有候选代码的检测级别进行比较，以找到级别最低的候选代码，并将候选代码分配给发送新的起始呼叫消息的移动台。

    Pilot aided adaptive minimum mean square interference cancellation and detection
    52.
    发明授权
    Pilot aided adaptive minimum mean square interference cancellation and detection 失效
    导频辅助自适应最小均方干扰消除和检测

    公开(公告)号：US07161973B2

    公开(公告)日：2007-01-09

    申请号：US10320526

    申请日：2002-12-17

    Applicant: Arunabha Ghosh

    Inventor： Arunabha Ghosh

    IPC: H04B15/00 ,  H04K1/00 ,  H04L27/30

    CPC classification number: H04B1/71055 ,  H04B2201/70701 ,  H04B2201/70703

    Abstract: A modified adaptive minimum mean square error (MMSE) receiver detects a spread spectrum signal, minimizing interference among multiple users. The receiver receives multiple pilot bits and corresponding data bits. A channel is estimated using at least one of the received pilot bits and, simultaneously, the data bits are detected based on the pilot bit and an inverse of a gain of the receiver. The spectrum signal may be spread in accordance with a wideband code division multiple access (W-CDMA) format, in which the pilot bits are modified to include a predetermined bit sequence of alternating ones and negative ones.

    Abstract translation: 修改的自适应最小均方误差（MMSE）接收机检测扩频信号，使多个用户之间的干扰最小化。 接收机接收多个导频位和相应的数据位。 使用接收到的导频比特中的至少一个估计信道，并且同时，基于导频比特检测数据比特和接收机的增益的倒数。 频谱信号可以根据宽带码分多址（W-CDMA）格式扩展，其中导频比特被修改为包括交替的和负的预定比特序列。

    Convolutionally encoding and decoding multiple data streams
    53.
    发明申请
    Convolutionally encoding and decoding multiple data streams 审中-公开
    卷积编码和解码多个数据流

    公开(公告)号：US20060262832A1

    公开(公告)日：2006-11-23

    申请号：US11495352

    申请日：2006-07-28

    Applicant: John Kaewell

    Inventor： John Kaewell

    IPC: H04B1/707 ,  H04B1/00

    CPC classification number: H04L1/006 ,  H03M13/256 ,  H03M13/4107 ,  H03M13/4169 ,  H03M13/6502 ,  H04B1/707 ,  H04B2201/70703 ,  H04B2201/70705 ,  H04L1/0009 ,  H04L1/0046 ,  H04L1/0052 ,  H04L1/0054 ,  H04L1/08

    Abstract: A plurality of data streams are convolutionally encoded. Each convolutionally encoded data stream has a particular data rate. The particular data rate of each data stream is adjusted so that an adjusted data rate of that data stream matches a data rate of a CDMA transmission. When the particular data rate of one of the data streams is below the data rate of the CDMA transmission, data of the one data stream is repeated to match the data rate of the CDMA transmission. The adjusted data rate data streams is transmitted as the CDMA transmission. The adjusted data streams are transmitted together in the CDMA transmission and the CDMA transmission is quadrature modulated.

    Abstract translation: 多个数据流被卷积编码。 每个卷积编码的数据流具有特定的数据速率。 调整每个数据流的特定数据速率，使得该数据流的经调整的数据速率与CDMA传输的数据速率相匹配。 当其中一个数据流的特定数据速率低于CDMA传输的数据速率时，重复一个数据流的数据以匹配CDMA传输的数据速率。 经调整的数据速率数据流作为CDMA传输被发送。 经调整的数据流在CDMA传输中一起发送，并且CDMA传输被正交调制。

    Radio communication system and base station employing CDMA
    54.
    发明授权
    Radio communication system and base station employing CDMA 有权
    无线电通信系统和采用CDMA的基站

    公开(公告)号：US07126931B2

    公开(公告)日：2006-10-24

    申请号：US10013451

    申请日：2001-12-13

    Applicant: Keijiro Take

    Inventor： Keijiro Take

    IPC: H04B7/216 ,  H04J3/06

    CPC classification number: H04J13/0077 ,  H04B2201/70703 ,  H04J13/004 ,  H04J13/0044 ,  H04J13/18 ,  H04J13/20 ,  H04W24/00 ,  H04W28/18 ,  H04W28/22 ,  H04W28/26 ,  H04W36/06 ,  H04W56/00 ,  H04W72/02 ,  H04W72/0466 ,  H04W76/10 ,  H04W88/08 ,  H04W88/12

    Abstract: A base station controller selects codes corresponding to rate information included in a new starting call message from a mobile station, and further selects codes assignable to the mobile station from the selected codes as candidate codes. Then, the base station controller detects codes which meet both the characteristics of being at a higher level of the candidate codes in the tree structure and being assignable to other mobile station, and further detects levels of the detected codes. Detected levels for all the candidate codes are compared to find a candidate code whose level is the lowest and to assign the candidate code to the mobile station sending the new staffing call message.

    Abstract translation: 基站控制器从移动站中选择与包括在新的起始呼叫消息中的速率信息相对应的代码，并且从所选择的代码中选择可分配给移动站的代码作为候选代码。 然后，基站控制器检测符合树结构中的候选代码的较高级别的特性并可分配给其他移动台的代码，并进一步检测检测到的代码的级别。 对所有候选代码的检测级别进行比较，以找到级别最低的候选代码，并将候选代码分配给发送新的人员调用消息的移动台。

    Reception of multiple code length CDMA transmissions
    56.
    发明申请
    Reception of multiple code length CDMA transmissions 有权

    公开(公告)号：US20060209934A1

    公开(公告)日：2006-09-21

    申请号：US11091360

    申请日：2005-03-16

    Applicant: Qin Zhengdi ,  Seppo Turunen

    Inventor： Qin Zhengdi ,  Seppo Turunen

    IPC: H04B1/713

    CPC classification number: H04B1/70752 ,  H04B2201/70703

    Abstract: Code synchronization is acquired as a part of receiving and decoding a spread spectrum transmission. There are received a number of signal samples that constitute a signal sample sequence. It represents a length of a received signal spread with one full length of a pseudorandom sequence used as a spreading code. The signal sample sequence is augmented at least at one end with at least one additional symbol, which produces a padded signal sample sequence. The padded signal sample sequence is in turn correlated with a locally produced sample sequence that comprises code samples representing a known form of said spreading code. The result of said correlating is used as a basis for acquired code synchronization.

    Efficient spreader for spread spectrum communication systems
    58.
    发明授权
    Efficient spreader for spread spectrum communication systems 有权
    用于扩频通信系统的高效扩展器

    公开(公告)号：US07103088B2

    公开(公告)日：2006-09-05

    申请号：US11114397

    申请日：2005-04-26

    Applicant: Raj Mani Misra ,  Gregory S. Teal

    Inventor： Raj Mani Misra ,  Gregory S. Teal

    IPC: H04L27/30

    CPC classification number: H04J13/16 ,  H04B1/707 ,  H04B2201/70703 ,  H04B2201/70706 ,  H04J13/0074 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/107

    Abstract: A spreading system and method for CDMA applications that requires fewer integer multiplications. User data is spread using real or complex integer based spreading codes of length SF to SFmax chips. At least one of the codes is of the form jn·v[n] where v[n] is a spreading code. The invention provides increased user separation using a plurality of spreading codes.

    Abstract translation: CDMA应用的扩展系统和方法，需要较少的整数乘法。 使用长度为SF至SF最大码片的实数或复数整数扩展码扩展用户数据。 代码中的至少一个具有形式为v [n]的形式，其中v [n]是扩展码。 本发明使用多个扩展码提供增加的用户分离。

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