公开(公告)号：EP0951190A3

公开(公告)日：2000-04-19

申请号：EP99302975.0

申请日：1999-04-16

Applicant: NORTEL NETWORKS CORPORATION

Inventor： Chang, Jue ,  Lo, Wing F. ,  Kim, Won S.

IPC: H04Q7/32 ,  H04Q7/38 ,  H04B7/185

CPC classification number: H04W36/12 ,  H04B7/18545 ,  H04B7/18563 ,  H04W88/06

Abstract: Methods for switching a mobile between operation in an mobile satellite system mode and a terrestrial wireless mode. When operating in the terrestrial wireless mode, the mobile terminal will initiate an attempt to switch into the MSS mode when it nears the boundary of the coverage area for a terrestrial wireless system to which it is registered. Conversely, a mobile terminal operating in the MSS mode will regularly attempt to switch into the terrestrial wireless mode. For both, a switch between modes is contingent on the mobile terminal identifying a suitable system for registration therewith upon completing the switch between modes. The criteria for identifying a suitable system for selection purposes include the following (1) the selected system is available, i.e., the mobile terminal is physically located within a coverage area for the selected system; (2) the mobile terminal is compatible with the selected system; and (3) the selected system is willing to accept the mobile terminal. If multiple systems meet these criteria, the mobile terminal will utilize a stored list of preferred systems to select therefrom. When switching into the terrestrial wireless mode, the MSS system provides the mobile terminal with switch-over information for the underlying terrestrial wireless systems and, when switching into the MSS mode, the terrestrial wireless system provides the mobile terminal with switch-over information for the overlying MSS systems.

公开(公告)号：EP0951190A2

公开(公告)日：1999-10-20

申请号：EP99302975.0

申请日：1999-04-16

Applicant: NORTEL NETWORKS CORPORATION

Inventor： Chang, Jue ,  Lo, Wing F. ,  Kim, Won S.

IPC: H04Q7/32

CPC classification number: H04W36/12 ,  H04B7/18545 ,  H04B7/18563 ,  H04W88/06

Abstract: Methods for switching a mobile between operation in an mobile satellite system mode and a terrestrial wireless mode. When operating in the terrestrial wireless mode, the mobile terminal will initiate an attempt to switch into the MSS mode when it nears the boundary of the coverage area for a terrestrial wireless system to which it is registered. Conversely, a mobile terminal operating in the MSS mode will regularly attempt to switch into the terrestrial wireless mode. For both, a switch between modes is contingent on the mobile terminal identifying a suitable system for registration therewith upon completing the switch between modes. The criteria for identifying a suitable system for selection purposes include the following (1) the selected system is available, i.e., the mobile terminal is physically located within a coverage area for the selected system; (2) the mobile terminal is compatible with the selected system; and (3) the selected system is willing to accept the mobile terminal. If multiple systems meet these criteria, the mobile terminal will utilize a stored list of preferred systems to select therefrom. When switching into the terrestrial wireless mode, the MSS system provides the mobile terminal with switch-over information for the underlying terrestrial wireless systems and, when switching into the MSS mode, the terrestrial wireless system provides the mobile terminal with switch-over information for the overlying MSS systems.

Abstract translation: 用于在移动卫星系统模式和地面无线模式的操作之间切换移动站的方法。 当在陆地无线模式下操作时，当移动终端接近用于其登记的地面无线系统的覆盖区域的边界时，移动终端将发起切换到MSS模式的尝试。 相反，以MSS模式工作的移动终端将定期地尝试切换到地面无线模式。 对于两者，模式之间的切换取决于移动终端在完成模式之间的切换时识别用于登记的适当系统。 用于识别用于选择目的的合适系统的标准包括以下（1）所选择的系统是可用的，即移动终端物理上位于所选择的系统的覆盖区域内; （2）移动终端与所选系统兼容; （3）所选系统愿意接受移动终端。 如果多个系统满足这些标准，则移动终端将利用存储的优选系统列表来从中选择。 当切换到地面无线模式时，MSS系统为移动终端提供用于底层地面无线系统的切换信息，并且当切换到MSS模式时，地面无线系统向移动终端提供切换信息 覆盖MSS系统。