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1. 发明授权

US06216003B1 Method of handover control in mobile radio communication realizing reduced control load 失效
标题翻译：移动无线电通信中的切换控制方法实现了减少的控制负载
公开(公告)号：US06216003B1
公开(公告)日：2001-04-10
申请号：US09088715
申请日：1998-06-02
申请人： Takuya Hamajima , Takaaki Sato , Katsuhiko Yamagata , Takehiro Nakamura
发明人： Takuya Hamajima , Takaaki Sato , Katsuhiko Yamagata , Takehiro Nakamura
IPC分类号： H04Q720
CPC分类号： H04W36/0055
摘要： In the method of handover control, when a mobile station recognizes that the mobile station has moved to an overlapping area, the mobile station notifies this fact to a network side and in response the network side sets up only a communication channel between a handover target base station and an exchange station for controlling that handover target base station, without setting up a radio channel between the handover target base station and the mobile station, while continuing the communication by not releasing the communication channel between the currently located base station and the exchange station and the radio channel between the currently located base station and the mobile station, so that it becomes possible to reduce a transmission control load for transmission between the base station and the exchange station as well as a control load for controlling the exchange station itself.
摘要翻译：在切换控制的方法中，当移动台识别出移动台已经移动到重叠区域时，移动台向网络侧通知该事实，作为响应，网络侧仅设置切换对象基站站和用于控制切换目标基站的交换站，而不在切换目标基站和移动站之间建立无线电信道，同时通过不释放当前所在的基站和交换站之间的通信信道来继续通信以及当前所在的基站与移动台之间的无线电信道，从而可以减少基站与交换站之间的传输的传输控制负载以及用于控制交换站本身的控制负载。

2. 发明授权

US08542835B2 Method and system for mobile communications 有权
公开(公告)号：US08542835B2
公开(公告)日：2013-09-24
申请号：US12366384
申请日：2009-02-05
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04L29/06
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

3. 发明申请

US20090154702A1 METHOD AND SYSTEM FOR MOBILE COMMUNICATIONS 有权
公开(公告)号：US20090154702A1
公开(公告)日：2009-06-18
申请号：US12366384
申请日：2009-02-05
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04L9/00
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

4. 发明授权

US08275133B2 Method and system for mobile communications 有权
标题翻译：移动通信方法与系统
公开(公告)号：US08275133B2
公开(公告)日：2012-09-25
申请号：US11396103
申请日：2006-03-30
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： G06F21/00
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.
摘要翻译：当网络寻找移动台的临时用户移动标识符时，移动台向网络发送响应。接下来，网络使用对应于临时用户移动标识符和随机数的加密密钥来检查用户的真实性。如果临时用户移动标识符被认证，则执行正常的来电接受过程。如果临时用户移动标识符错误地移动台被认证，则网络将新的临时用户移动标识符重新分配给移动台并停止当前通信。在通信中，网络和移动台相互通知加密起始时间，并协商加密方式。此外，在呼叫尝试时开始分集越区切换。此外，如果需要分支替换，则当前分支被能够执行分集越区切换的新分支替换。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，移动台对所有呼叫使用相同的分支结构和相同的通信频带。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，选择并使用可以继续所有呼叫的分支结构和通信频带。因此，根据多媒体的发展，移动通信系统适合于传输各种数据。

5. 发明授权

US07630716B2 Method and system for mobile communications 有权
标题翻译：移动通信方法与系统
公开(公告)号：US07630716B2
公开(公告)日：2009-12-08
申请号：US11712539
申请日：2007-02-28
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04Q7/20
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.
摘要翻译：当网络寻找移动台的临时用户移动标识符时，移动台向网络发送响应。接下来，网络使用对应于临时用户移动标识符和随机数的加密密钥来检查用户的真实性。如果临时用户移动标识符被认证，则执行正常的来电接受过程。如果临时用户移动标识符错误地移动台被认证，则网络将新的临时用户移动标识符重新分配给移动台并停止当前通信。在通信中，网络和移动台相互通知加密起始时间，并协商加密方式。此外，在呼叫尝试时开始分集越区切换。此外，如果需要分支替换，则当前分支被能够执行分集越区切换的新分支替换。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，移动台对所有呼叫使用相同的分支结构和相同的通信频带。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，选择并使用可以继续所有呼叫的分支结构和通信频带。因此，根据多媒体的发展，移动通信系统适合于传输各种数据。

6. 发明申请

US20080108356A1 Method and system for mobile communications 有权
标题翻译：移动通信方法与系统
公开(公告)号：US20080108356A1
公开(公告)日：2008-05-08
申请号：US11807825
申请日：2007-05-30
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04Q7/00
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.
摘要翻译：当网络寻找移动台的临时用户移动标识符时，移动台向网络发送响应。接下来，网络使用对应于临时用户移动标识符和随机数的加密密钥来检查用户的真实性。如果临时用户移动标识符被认证，则执行正常的来电接受过程。如果临时用户移动标识符错误地移动台被认证，则网络将新的临时用户移动标识符重新分配给移动台并停止当前通信。在通信中，网络和移动台相互通知加密起始时间，并协商加密方式。此外，在呼叫尝试时开始分集越区切换。此外，如果需要分支替换，则当前分支被能够执行分集越区切换的新分支替换。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，移动台对所有呼叫使用相同的分支结构和相同的通信频带。此外，当能够同时处理多个呼叫的移动台发生新呼叫时，选择并使用可以继续所有呼叫的分支结构和通信频带。因此，根据多媒体的发展，移动通信系统适合于传输各种数据。

7. 发明申请

US20060251038A1 Method and system for mobile communications 失效
公开(公告)号：US20060251038A1
公开(公告)日：2006-11-09
申请号：US11399674
申请日：2006-04-06
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04B7/216
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

8. 发明授权

US08259675B2 Method and system for mobile communications 有权
公开(公告)号：US08259675B2
公开(公告)日：2012-09-04
申请号：US12365647
申请日：2009-02-04
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04W4/00
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

9. 发明授权

US08185158B2 Method and system for mobile communications 失效
公开(公告)号：US08185158B2
公开(公告)日：2012-05-22
申请号：US12421197
申请日：2009-04-09
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04B1/38
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

10. 发明授权

US07907730B2 Method and system for mobile communications 有权
公开(公告)号：US07907730B2
公开(公告)日：2011-03-15
申请号：US12367026
申请日：2009-02-06
申请人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
发明人： Motoshi Tamura , Mutsumaru Miki , Akiko Okamoto , Kenya Kusunose , Akihiro Uchikoshi , Daisuke Igarashi , Katsuhiko Yamagata , Takaaki Sato , Junichiro Hagiwara , Yasuyuki Watanabe , Takuya Hamajima , Masafumi Hata , Nobutaka Ishikawa , Yoshiyuki Yasuda , Kazufumi Yunoki , Nobuhide Uchiyama
IPC分类号： H04K1/00
CPC分类号： H04B7/022 , H04W12/02 , H04W12/06 , H04W36/08 , H04W36/18 , H04W52/04 , H04W52/12 , H04W80/04 , H04W84/042 , H04W88/06 , H04W88/12
摘要： When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and a random number. If the temporary user mobile identifier is authenticated, a normal incoming call acceptance procedure is executed. If the mobile station is authenticated although the temporary user mobile identifier is wrong, the network reassigns a new temporary user mobile identifier to the mobile station and stops the current communication. In communication, the network and the mobile station mutually notify encipherment-onset time and negotiate about encipherment manner with each other. In addition, diversity handover is commenced upon a call attempt. Furthermore, if a branch replacement is necessary, the current branch is replaced by new branches capable of executing the diversity handover. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, the mobile station uses the same branch structure and the same communication frequency band for all of calls. Additionally, when a new call occurs to or from the mobile station capable of treating a plurality of calls simultaneously, a branch structure and a communication frequency band, which can continue all of the calls, are selected and used. Therefore, the mobile communications system is suitable for transmission of various sorts of data in accordance with the development of multimedia.

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