公开(公告)号：US20060251151A1

公开(公告)日：2006-11-09

申请号：US11456827

申请日：2006-07-11

申请人： Takehiro Nakamura ,  Junichiro Hagiwara ,  Etsuhiro Nakano ,  Koji Ohno ,  Seizo Onoe ,  Akihiro Higashi ,  Motoshi Tamura ,  Masatomo Nakano ,  Hiroshi Kawakami ,  Hiroki Morikawa

发明人： Takehiro Nakamura ,  Junichiro Hagiwara ,  Etsuhiro Nakano ,  Koji Ohno ,  Seizo Onoe ,  Akihiro Higashi ,  Motoshi Tamura ,  Masatomo Nakano ,  Hiroshi Kawakami ,  Hiroki Morikawa

IPC分类号： H04B1/00

CPC分类号： H04W88/08 ,  H04B7/2618 ,  H04B7/2628 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J13/00 ,  H04J13/0022 ,  H04J13/0029 ,  H04J13/0077 ,  H04J13/10 ,  H04J13/16 ,  H04W52/08 ,  H04W52/12 ,  H04W52/16 ,  H04W52/24 ,  H04W52/241 ,  H04W52/248 ,  H04W52/322 ,  H04W52/325 ,  H04W52/40 ,  H04W52/50 ,  H04W52/56 ,  H04W52/60 ,  H04W92/10 ,  H04W92/12

摘要： A base station including a transmitting and receiving amplifier for amplifying CDMA signals exchanged with a mobile station; a radio stage connected to the transmitting and receiving amplifier for carrying out D/A conversion of a transmitted signal that undergoes baseband spreading, followed by quadrature modulation, and for carrying out quasi-coherent detection of a received signal, followed by A/D conversion; a baseband signal processor connected with the radio stage for carrying out baseband signal processing of the transmitted signal and the received signal; a transmission interface connected with the baseband signal processor for implementing interface with external channels; and a base station controller for carrying out control such as management of radio channels and establishment and release of the radio channels. The base station communicates with the external channels by mapping logical channels into physical channels. The CDMA signals are spread using a short code and a long code.

摘要翻译： 一种基站，包括用于放大与移动台交换的CDMA信号的发射和接收放大器; 连接到发射和接收放大器的无线电台，用于对经历基带扩频的发送信号进行D / A转换，随后进行正交调制，并进行接收信号的准相干检测，然后进行A / D转换 ; 与无线电台连接的基带信号处理器，用于对发射信号和接收信号进行基带信号处理; 与基带信号处理器连接的传输接口，用于实现与外部信道的接口; 以及用于执行无线电信道的管理和无线电信道的建立和释放的控制的基站控制器。 基站通过将逻辑信道映射到物理信道中与外部信道进行通信。 CDMA信号使用短码和长码进行传播。

公开(公告)号：US06697370B1

公开(公告)日：2004-02-24

申请号：US09343488

申请日：1999-06-30

申请人： Tokuro Doi ,  Masatomo Nakano ,  Motoshi Tamura ,  Teruki Niwa

发明人： Tokuro Doi ,  Masatomo Nakano ,  Motoshi Tamura ,  Teruki Niwa

IPC分类号： H04L1228

CPC分类号： H04L12/5601 ,  H04L2012/5624 ,  H04L2012/5632 ,  H04L2012/5634

摘要： Efficient use of an ATM transmission path becomes possible by multiplexing, into a bandwidth in the bandwidth-assured individual VP, a plurality of users whose traffic volumes are beyond a predetermined value. Installing a bandwidth-unassured common VP for low traffic users makes it possible to switch from the common VP to the individual VP or vice versa under the following conditions. (1) When the user traffic volume, monitored at fixed intervals during the communications through an individual VP, drops below a predetermined threshold value, the individual VP is switched to a common VP. (2) When the user traffic volume, monitored at fixed intervals during the communications through a common VP, exceeds a predetermined threshold value, the common VP is switched to an individual VP. (3) In addition to condition (2), when bandwidth shortage takes place in common VPs, the common VPs of heavy traffic users are switched to individual VPs.

摘要翻译： 通过将带宽保证的个人VP中的带宽多路复用到其业务量超过预定值的多个用户，可以有效地利用ATM传输路径。 为低流量用户安装带宽不通用的公用VP可以在以下条件下从公共VP切换到单独的VP，反之亦然。 （1）当在通过个人VP通信期间以固定间隔监视的用户业务量下降到预定阈值以下时，个别VP切换到公共VP。 （2）当通过公共VP通信期间以固定间隔监视的用户业务量超过预定阈值时，将公共VP切换到单独的VP。 （3）除条件（2）外，在普通VP中发生带宽短缺的情况下，大量用户的普通VP切换到各个VP。

公开(公告)号：US06574226B1

公开(公告)日：2003-06-03

申请号：US09125960

申请日：2000-02-14

申请人： Masatomo Nakano ,  Hisakazu Tsuboya ,  Hiroshi Nakamura

发明人： Masatomo Nakano ,  Hisakazu Tsuboya ,  Hiroshi Nakamura

IPC分类号： H04L1228

CPC分类号： H04Q11/0478 ,  H04L2012/5649 ,  H04L2012/5652 ,  H04L2012/5656 ,  H04L2012/5671

摘要： In a device and method for minimizing transmission delay of low-rate data such as voice data and for enhancing the transmission efficiency in multiplexed data communication using AAL type 2 protocol the SSCS of the high-rate data side of an AAL type 2 converter is responsible for addition and elimination of a dummy code field, error correction, and division and reassembly of data unit. A dummy code field and restorative code field are attached to a user data unit which is supplied from the higher layer in a source device, whereby a data unit is prepared. The data unit is then divided into segments 1 to m of a fixed-length, 45 octets. Successive code fields 1 to m are attached to the segments 1 to m, whereby data blocks 1 to m are prepared. The data blocks 1 to m are successively transferred to the AAL-2 converter. In a destination device, from the data blocks 1 to m, the user data unit is reassembled.

摘要翻译： 在用于最小化诸如语音数据的低速率数据的传输延迟的装置和方法中，并且为了提高使用AAL类型2协议的复用数据通信中的传输效率，AAL类​​型2转换器的高速率数据侧的SSCS负责 用于添加和消除虚拟代码字段，纠错以及数据单元的划分和重组。 虚拟代码字段和修复代码字段附加到从源设备中的较高层提供的用户数据单元，由此准备数据单元。 然后将数据单元分成固定长度为45个八位位组的段1至m。 连续代码字段1至m附加到段1至m，从而准备数据块1至m。 数据块1〜m依次传送到AAL-2转换器。 在目的地设备中，从数据块1到m，重新组合用户数据单元。

公开(公告)号：US5615210A

公开(公告)日：1997-03-25

申请号：US371547

申请日：1995-01-11

申请人： Akira Kaiyama ,  Noriteru Shinagawa ,  Masatomo Nakano

发明人： Akira Kaiyama ,  Noriteru Shinagawa ,  Masatomo Nakano

IPC分类号： H04W4/18 ,  H04W28/06 ,  H04W88/08 ,  H04W88/14 ,  H04W92/04 ,  H04L12/56 ,  H04Q7/22

CPC分类号： H04W92/04 ,  H04W28/06 ,  H04W4/18 ,  H04W88/08 ,  H04W88/14

摘要： Transmission quality and throughput are improved when communication is carried out using fixed-length packets in wire circuits between radio base stations and a mobile switching center in mobile radio communications systems. Low bit-rate digital information signals are converted to short packets by a plurality of information data assembly/disassembly circuits provided in parallel. A plurality of these short packets are transmitted after being inserted into a long fixed-length packet by means of a fixed-length packet assembly/disassembly circuit, and a plurality of short packets are extracted from the fixed-length packet and then restored to the low bit-rate digital information signals by information data assembly/disassembly circuits. This enables high throughput, economical communication paths to be constructed.

摘要翻译： 在无线电基站和移动无线电通信系统中的移动交换中心之间的有线电路中使用固定长度分组进行通信时，传输质量和吞吐量得到改善。 通过并行提供的多个信息数据组装/拆卸电路将低比特率数字信息信号转换成短分组。 在通过固定长度的分组组合/分解电路插入到长的固定长度分组之后，发送多个这些短分组，并且从固定长度分组中提取多个短分组，然后恢复到 信息数据组装/拆卸电路的低比特率数字信息信号。 这样可以构建高通量，经济的通信路径。