WO/2004/021620 is referenced by 3 patents.

A multi-mode mobile wireless communications device architecture (200) including an application layer (210), a services layer (220) interfacing the applications layer, a multi-mode layer (230) interfacing the service layer, and a hardware layer (240) interfacing the multi-mode layer. The multi-mode layer includes first and second interoperable radio access technologies, for example W-CDMA UMTS and GSM/GPRS technologies.

Title
Multi-mode interoperable mobile station communications architectures and methods
Application Number
PCT/US2003/024399
Publication Number
2004/021620
Application Date
August 5, 2003
Publication Date
March 11, 2004
Inventor
Sudini Ramesh
Spriggs Kevin Michael
Dorsey Donald Arthur
Raghuram Sharada
Vijayaprasad Krishnamurthy Srinath
Sreekrishna Maloor Ramachandra
Perepa Mahesh
Polisetty Rohini
Kosgi Rajendra K
Grube Carl
Sheynman Arnold
Agent
VAAS Randall S
Assignee
Motorola
IPC
H04Q 07/32
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