专利名称：Providing information on the support of a
service in the preferred roaming list of amobile device and choosing/acquiringnetworks supporting such service
发明人：Xue, Hao,Islam, M. Khaledul,Willey, William
Daniel
申请号：EP04000460.8申请日：20040112公开号：EP1553796B8公开日：20100324
摘要：A method and system of providing a mobile data device in a wireless systemwith information about preferred networks to connect to, the mobile data device havinga preferred roaming list with a list of networks, the method comprising the steps of:adding to the preferred roaming list information about whether each network in the listof networks supports third generation data capabilities; and determining preferrednetworks based on information within the preferred roaming list including a geographicarea and whether the network supports third generation data capabilities, whereby,within the geographic area, the mobile data device prefers networks which support thirdgeneration data capabilities over networks which do not support said third generationdata capabilities. Other information that may be added to the preferred roaming listincludes whether the network supports data roaming, Mobile IP services or always-onfeatures. The preferred roaming list may also include information about the deviceservice capabilities.
申请人：RESEARCH IN MOTION LTD
地址：CA
国籍：CA
代理机构：Moore, Barry
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