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1. 发明授权

US08005120B2 Base station apparatus of mobile communication system 有权
标题翻译：移动通信系统基站装置
公开(公告)号：US08005120B2
公开(公告)日：2011-08-23
申请号：US10673656
申请日：2003-09-29
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： H04J3/06
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。

2. 发明授权

US07672357B2 Base station apparatus of mobile communication system 有权
公开(公告)号：US07672357B2
公开(公告)日：2010-03-02
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： H04B1/707
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.

3. 发明授权

US07443907B2 Base station apparatus of mobile communication system 有权
标题翻译：移动通信系统基站装置
公开(公告)号：US07443907B2
公开(公告)日：2008-10-28
申请号：US10673940
申请日：2003-09-29
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： H04B1/707
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。

4. 发明授权

US06782035B1 Base station apparatus of mobile communication system 有权
标题翻译：移动通信系统基站装置
公开(公告)号：US06782035B1
公开(公告)日：2004-08-24
申请号：US09403161
申请日：2000-01-31
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： H04B1713
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 using ATM cells, and with the mobile stations using the CDMA signals by mapping a plurality of logical channels into a plurality of physical channels. The CDMA signals are spreading using two types of spreading code sequences, that is, 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。基站使用ATM信元与外部信道通信，并且通过将多个逻辑信道映射到多个物理信道中，移动站使用CDMA信号。 CDMA信号是使用两种类型的扩展码序列扩展的，即短码和长码。

5. 发明授权

US6061354A Micro-frame multiplex transmitter 失效
标题翻译：微帧复用发射机
公开(公告)号：US6061354A
公开(公告)日：2000-05-09
申请号：US894585
申请日：1997-08-22
申请人： Hiroki Morikawa , Yukichi Saito , Hiroshi Kawakami , Fumiaki Ishino , Akihisa Nakajima
发明人： Hiroki Morikawa , Yukichi Saito , Hiroshi Kawakami , Fumiaki Ishino , Akihisa Nakajima
IPC分类号： H04L12/70 , H04Q11/04 , H04L12/28
CPC分类号： H04Q11/0478 , H04L2012/5649 , H04L2012/5652 , H04L2012/5661 , H04L2012/5672 , H04L2012/5679 , H04L2012/5681
摘要： A concrete circuit configuration is proposed of a multiplex transmitter for loading a standard ATM cell with multiplexed micro-frames which are each shorter than the standard ATM cell. The input micro-frames are delivered to a distributor 504 in the input order through an interface 503. The distributor 504 distributes the input micro-frames using distributing information input. The distributing information accords with the service condition of each connection or micro-frame. An extracting circuit 506 selects buffers in accordance with predetermined buffer selection logic. A cell cancellation monitor circuit 508 relinquishes micro-frames exceeding cell tolerable time periods T2-1-T2-m. A multiplexing processor 507 transfers the cell or a idle cell to a sender 511 in accordance with the cell transfer timing of the sender 511.
摘要翻译： PCT No.PCT / JP96 / 03764 Sec。 371日期1997年8月22日 102（e）日期1997年8月22日PCT 1996年12月24日PCT公布。第WO97 / 23975号公报日期1997年7月3日提出了一种多路复用发送器的具体电路配置，用于加载具有比标准ATM信元短的多路复用微帧的标准ATM信元。输入微帧通过接口503以输入顺序传送到分配器504.分配器504使用分配信息输入来分配输入微帧。分发信息符合每个连接或微框架的服务条件。提取电路506根据预定的缓冲器选择逻辑选择缓冲器。单元取消监视电路508放弃超过单元容许时间段T2-1-T2-m的微帧。复用处理器507根据发送器511的小区传输定时将小区或空闲小区传送到发送方511。

6. 发明授权

US07095780B2 Base station apparatus of mobile communication system 有权
标题翻译：移动通信系统基站装置
公开(公告)号：US07095780B2
公开(公告)日：2006-08-22
申请号：US10673685
申请日：2003-09-29
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： H04B1/707 , H04Q7/20
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。

7. 发明申请

US20060171328A1 Frame synchronization circuit 有权
标题翻译：帧同步电路
公开(公告)号：US20060171328A1
公开(公告)日：2006-08-03
申请号：US11223450
申请日：2005-09-08
申请人： Tomoyuki Ohtani , Motoshi Tamura , Takaaki Satoh , Hiroki Morikawa , Fumiaki Ishino
发明人： Tomoyuki Ohtani , Motoshi Tamura , Takaaki Satoh , Hiroki Morikawa , Fumiaki Ishino
IPC分类号： H04J1/16
CPC分类号： H04W36/18 , H04B7/022 , H04B7/2681 , H04W36/12 , H04W56/00
摘要： Disclosed is a mobile communication system including a network constituted of at least one switching center and a plurality of base stations, and a mobile station which communicates with the base stations simultaneously. The system permits varying transmission delay between the switching center and the base stations according to the type of services available to the mobile station. The object of the present invention is to propose a communication which permits varying transmission delay according to the type of service currently employed, and to promptly recover a synchronization state even if an out-of-sync state happens. To attain the object, a memory means (mobile switching center processor 32) stores transmission delay characteristics corresponding to services which are available to the mobile station. Furthermore, a communication timing setting means (diversity handover trunk 34) determines the timing of communication for the base stations according to the transmission delay characteristic selected according to the service.
摘要翻译：公开了包括由至少一个交换中心和多个基站构成的网络的移动通信系统以及与基站同时通信的移动台。该系统允许根据移动台可用的业务类型在交换中心与基站之间改变传输延迟。本发明的目的是提出一种允许根据当前使用的业务类型改变传输延迟的通信，并且即使发生不同步状态，也能及时恢复同步状态。为了实现该目的，存储装置（移动交换中心处理器32）存储与移动台可用的业务相对应的传输延迟特性。此外，通信定时设定单元（分集越区切换中继线34）根据根据业务选择的传输延迟特性确定基站的通信定时。

8. 发明授权

US06611505B1 Control signal processor and communication system 失效
标题翻译：控制信号处理器和通讯系统
公开(公告)号：US06611505B1
公开(公告)日：2003-08-26
申请号：US09230218
申请日：1999-01-19
申请人： Shin Nakamura , Hiroki Morikawa , Masatomo Nakano
发明人： Shin Nakamura , Hiroki Morikawa , Masatomo Nakano
IPC分类号： H04Q700
CPC分类号： H04W36/0016 , H04W80/02
摘要： The invention reduces an overhead operation required for re-establishment of a physical signal link. A physical signal link (layer 1 link) is switched over keeping a layer 2 link in the OSI reference model. A database 11 stores information indicating physical signal links and information indicating the maximum length of a layer 2 frame determined according to the ability of physical signal links. When a physical signal link is to be switched over, a target physical signal link is selected and a physical signal link used by the link is switched to the target physical link without releasing the single layer 2 link. The maximum length corresponding to the target physical signal link is obtained from the database 11, and layer 2 frames having the maximum length are transmitted. Switching over a physical signal link is performed in the following manner. When a physical signal link switching-over request is given, establishment of a target physical signal link is required without releasing a layer 2 link, and a multi-reception of control signals using both of the target physical signal link and an original physical signal link is started. After confirming establishment of the target physical signal link, a physical signal link used for transmitting a control signal is switched to the target physical signal link and release of the original physical signal link is required. After confirming release of the original physical signal link, a physical signal link for receiving a control signal is switched to the target physical signal link.
摘要翻译：本发明减少了重新建立物理信号链路所需的开销操作。在OSI参考模型中切换物理信号链路（第1层链路），保持层2链路。数据库11存储指示物理信号链路的信息和指示根据物理信号链路的能力确定的第2层的最大长度的信息。当要切换物理信号链路时，选择目标物理信号链路，并且将链路使用的物理信号链路切换到目标物理链路而不释放单层2链路。从数据库11获得与目标物理信号链路对应的最大长度，发送具有最大长度的层2帧。以下列方式执行切换物理信号链路。当给出物理信号链路切换请求时，需要在不释放第2层链路的情况下建立目标物理信号链路，并且使用目标物理信号链路和原始物理信号链路两者的多接收控制信号开始了在确认目标物理信号链路的建立之后，将用于发送控制信号的物理信号链路切换到目标物理信号链路，并且需要原始物理信号链路的释放。在确认原始物理信号链路的释放之后，将用于接收控制信号的物理信号链路切换到目标物理信号链路。

9. 发明授权

US07826861B2 Base station apparatus of mobile communication system 有权
标题翻译：移动通信系统基站装置
公开(公告)号：US07826861B2
公开(公告)日：2010-11-02
申请号：US10674003
申请日：2003-09-29
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： H04B7/00
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。

10. 发明申请

US20060251151A1 BASE STATION APPARATUS OF MOBILE COMMUNICATION SYSTEM 有权
标题翻译：移动通信系统的基站设备
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。

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