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    • 2. 发明授权
    • Frame synchronization circuit
    • 帧同步电路
    • US06977903B1
    • 2005-12-20
    • US09125958
    • 1997-12-25
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • H04B7/26H04L7/08H04W36/00H04W36/12H04W36/14H04W36/18H04W36/36H04W36/38H04W56/00H04J1/16H04J3/16
    • H04W36/18H04B7/022H04B7/2681H04W36/12H04W56/00
    • 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.
    • 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。
    • 3. 发明授权
    • Multiplex transmission system and bandwidth control method
    • 多路传输系统和带宽控制方法
    • US06560231B1
    • 2003-05-06
    • US09147911
    • 1999-07-23
    • Hiroshi KawakamiHiroki MorikawaFumiaki Ishino
    • Hiroshi KawakamiHiroki MorikawaFumiaki Ishino
    • H04L1228
    • H04L12/5601H04L2012/5632H04L2012/5638H04L2012/5672
    • A multiplex system for multiplexing packets into ATM cells to be transmitted, which can implement effective use of channels corresponding to irregular traffic qualities in services with various types of quality conditions in an actual environment. In response to a connection establishment request (S402), current required bandwidths B1, . . . , Bm are changed to B′1, . . . , B′m by adding the new connection, which causes bandwidths X1, . . . , Xm which are assigned to the channels to be changed. When the desired bandwidth including the requested connection is less than an available bandwidth of the corresponding channel, an assigned bandwidth change processing (S406) is activated to assign new bandwidths in accordance with desired bandwidths. The bandwidth assignment change is carried out by changing ratios of extraction rates of packets from the buffers in the multiplex system.
    • 一种用于将分组复用到待发送的ATM信元的多路复用系统,其可以在实际环境中实现具有与各种类型的质量条件的服务中的不规则业务质量相对应的信道的有效使用。 响应于连接建立请求(S402),当前所需的带宽B1,。 。 。 ,Bm改为B'1,。 。 。 ,B'm通过添加新的连接,导致带宽X1。 。 。 ,分配给要更改的通道的Xm。 当包括所请求的连接的期望带宽小于相应信道的可用带宽时,分配的带宽改变处理(S406)被激活以根据期望的带宽分配新的带宽。 通过改变来自多路复用系统中的缓冲器的分组的提取速率的比率来执行带宽分配改变。
    • 5. 发明申请
    • Frame synchronization circuit
    • 帧同步电路
    • US20060171328A1
    • 2006-08-03
    • US11223450
    • 2005-09-08
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • H04J1/16
    • H04W36/18H04B7/022H04B7/2681H04W36/12H04W56/00
    • 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.
    • 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
    • Frame synchronization circuit
    • 帧同步电路
    • US07362715B2
    • 2008-04-22
    • US11223450
    • 2005-09-08
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • H04J1/16H04J3/16
    • H04W36/18H04B7/022H04B7/2681H04W36/12H04W56/00
    • 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.
    • 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。
    • 9. 发明申请
    • Frame synchronization circuit
    • 帧同步电路
    • US20070259666A1
    • 2007-11-08
    • US11825002
    • 2007-07-03
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • Tomoyuki OhtaniMotoshi TamuraTakaaki SatohHiroki MorikawaFumiaki Ishino
    • H04Q7/20
    • H04W36/18H04B7/022H04B7/2681H04W36/12H04W56/00
    • 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.
    • 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。