Powered down selection of a preferable wireless communications service provider in a multi-service provider environment
摘要
<p>A powered down communication device locates a wireless service provider in a multi-service provider environment by examining frequency bands while powered down until a frequency band having a acceptable service provider is located. The frequency bands are examined in an order specified by a stored search schedule. An acceptable service provider is identified by comparing the identity of a service provider specified by an identifier received from a band being examined with a list of acceptable service providers. The communication device then registers with the acceptable service provider when powered up. <IMAGE></p>
申请公布号
EP0779751(A2)
申请公布日期
1997.06.18
申请号
EP19960120004
申请日期
1996.12.12
申请人
AT&T WIRELESS SERVICES, INC.
发明人
BAMBURAK, MICHAEL D.;DALY, JOHN J.;LAWRENCE, CHRISTOPHER GREGORY;PRISE, MICHAEL EDWARD;RAFFEL, MICHAEL ALLEN