Indicating radio access technology information to mobile stations system and method
AssigneeBlackBerry Limited
InventorsJohanna L. Dwyer, David P. Hole, Takashi Suzuki, Venkata Ratnakar Rayavarapu, Andrew M. Earnshaw, Maiyuran Wijayanathan, Richard Burbidge, Gordon Young
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Abstract
An access node. The access node includes a component configured to communicate with a mobile station operating on one of a first radio access technology (RAT) and a second RAT. The component is configured to communicate a permission to the mobile station to attempt to identify a cell of the first RAT in the absence of communicating to the mobile station a first radio access type neighbour cell list for a serving cell of the second RAT.
Claims32
An access node, comprising:
- a network connectivity device configured to communicate with a mobile station operating on a second radio access technology (RAT) and being unaware of a cell of a first RAT, wherein the network connectivity device is configured to communicate a permission to the mobile station to attempt to identify a cell of the first RAT in the absence of communicating to the mobile station a first radio access type neighbour cell list for a serving cell of the second RAT, the permission being communicated after the mobile station terminates a circuit switched (CS) service that was established as a result of a CS fallback operation from a cell of the first RAT, wherein the first RAT comprises an evolved universal terrestrial radio access network (E-UTRAN), the network connectivity device further configured to communicate an E-UTRAN configuration status bit that in one state indicates an absence of neighbouring E-UTRAN cells when no E-UTRAN cells are available to the mobile station.
A method implemented in an access node comprising a network connectivity device configured to communicate with a mobile station operating on a second radio access technology (RAT) and being unaware of a cell of a first RAT, the method comprising:
- communicating a permission to the mobile station to attempt to identify a cell of the first RAT in the absence of communicating to the mobile station a first radio access type neighbour cell list for a serving cell of the second RAT, the permission being communicated after the mobile station terminates a circuit switched (CS) service that was established as a result of a CS fallback operation from a cell of the first RAT, wherein the first radio access type neighbour cell list is an evolved universal mobile telecommunications system terrestrial radio access network (EUTRAN) neighbour cell list, and wherein the second RAT comprises one of a universal terrestrial radio access network (UTRAN) and a GSM/EDGE radio access network (GERAN);
- and
- transmitting an E-UTRAN configuration status bit that in one state indicates an absence of neighbouring E-UTRAN cells when no E-UTRAN cells are available to the mobile station.
A non-transitory computer readable storage medium storing a computer program, wherein execution of the computer program in an access node comprising a network connectivity device configured to communicate with a mobile station operating on a second radio access technology (RAT) and being unaware of a cell of a first RAT, is for:
- communicating a permission to the mobile station to attempt to identify a cell of the first RAT in the absence of communicating to the mobile station a first radio access type neighbour cell list for a serving cell of the second RAT, the permission being communicated after the mobile station terminates a circuit switched (CS) service that was established as a result of a CS fallback operation from a cell of the first RAT, wherein the first radio access type neighbour cell list is an evolved universal mobile telecommunications system terrestrial radio access network (E-UTRAN) neighbour cell list, and wherein the second RAT comprises one of a universal terrestrial radio access network (UTRAN) and a GSM/EDGE radio access network (GERAN);
- and
- transmitting an E-UTRAN configuration status bit that in one state indicates an absence of neighbouring E-UTRAN cells when no E-UTRAN cells are available to the mobile station.
Dependencies are inferred from the claim text.