Patent ID: 8423077

Claim:
A multi-mode wireless communication device, comprising: a first baseband co-processor configured to execute low-level stack operations of a first wireless communications protocol employed within a first wireless communications network; a host baseband processor configured to execute a set of protocol stack operations of a second wireless communications protocol employed within a second wireless communications network and higher-level stack operations of said first wireless communications protocol, wherein said higher-level stack operations of said first wireless communications protocol have lower processing requirements than said low-level stack operations of said first wireless communications protocol; a data communication channel between said host baseband processor and said first baseband co-processor capable of carrying data received by said multi-mode wireless communication device from said first wireless communications network or sent by said multi-mode wireless communication device through said first wireless communications network; and one or both of said first baseband co-processor and said host baseband processor enabling switching between bearers utilizing said low-level stack operations and said set of protocol stack operations and maintaining bearer connections during said switching.