发明名称 |
SYSTEM SUPPORTING DATA/FAX CONNECTION WITH A DUAL MODE MOBILE TELEPHONE |
摘要 |
An interface (66) between a dual mode mobile station (60) and a piece of data terminal equipment (64) supports both a logical digital interface (66(1)) and a logical analog interface (66(2)), with the analog interface passing through a modem. At set-up of either a mobile originated or mobile terminated data/fax call, a supporting dual mode communications network (62) determines whether a digital traffic channel (52) is available on an air interface. If so, the channel is allocated to the mobile station, and data/fax communication with the data terminal equipment occurs using the logical digital interface. Otherwise, an analog voice channel is allocated, and the data/fax communication with the data terminal equipment occurs using the logical analog interface and modem. Within the supporting network, data/fax communications via the digital traffic channel are routed through an interworking functionality (72) that terminates a radio link protocol utilized for communicating over the digital air interface. Analog voice channel data/fax communications are instead routed through a modem pool (70) that terminates a selected modem protocol utilized by the modem for communicating over the analog air interface.
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申请公布号 |
WO0013439(A1) |
申请公布日期 |
2000.03.09 |
申请号 |
WO1999SE01345 |
申请日期 |
1999.08.06 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
SICHER, ALAN, E.;JOONG, DONALD |
分类号 |
H04W76/02;H04W88/06;H04W92/18;H04W92/24;(IPC1-7):H04Q7/22 |
主分类号 |
H04W76/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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