Resuming packet services in a mobile network
AssigneeIntel Corporation
InventorRobert Zaus
Life of this patent
Estimating the term…
Abstract
This disclosure relates generally to resuming packet services in a mobile network. A device, method, and/or system may include switching, with user equipment, from communicating with a first radio access network to communicating with a second radio access network, setting, with a processor of the user equipment, a register of the user equipment to initiate packet services with the first radio access network, and transmitting, with the user equipment, a request to a core network node of the first radio access network to resume communications with the first radio access network based, at least in part, on the register.
Claims20
A method for inter-RAT cell reselection performed by user equipment (UE) that does not support dual transfer mode, the method comprising:
- switching from packet switched (PS) services with a first radio access network to circuit switched (CS) communicating with a second radio access network, the first radio access network being a E-UTRAN network, the second radio access network being a non-E-UTRAN network;
- transmitting signaling to suspend PS services while the UE has a signaling connection with a non-E-UTRAN cell;
- setting, with a processor of the user equipment, a register of the user equipment to initiate packet switched services with the first radio access network;
- and
- transmitting, with the user equipment, a request to a core network node of the first radio access network to resume PS services with the first radio access network after returning to a E-UTRAN cell based, at least in part, on the register, the request initiating tracking area update (TAU) procedure when idle mode signaling (ISR) is active,
- wherein when resumption of PS services is unsuccessful, deactivating ISR after returning to the E-UTRAN cell and transmitting another request to initiate a TAU procedure after resetting the register to indicate a RAT that was established before inter-RAT cell reselection.
A user equipment that does not support dual transfer mode, the UE comprising:
- a transceiver configured to communicate with a first radio access network and a second radio access network, the first radio access network being a E-UTRAN network, the second radio access network being a non-E-UTRAN network;
- a register;
- and
- a processor, coupled to the transceiver and the register, configured to:
- switch the transceiver from packet switched (PS) services with the first radio access network to circuit switched (CS) communicating with the second radio access network;
- set the register to initiate packet PS services with the first radio access network;
- cause the transceiver to transmit signaling to suspend PS services while the UE has a signaling connection with a non-E-UTRAN cell;
- and
- cause the transceiver to transmit a request to a core network node of the first radio access network to resume PS services with the first radio access network based, at least in part, on the register, the request initiating a tracking area update (TAU) procedure when idle mode signaling (ISR) is active,
- wherein when resumption of PS services is unsuccessful, the UE is configured to deactivate ISR after returning to the E-UTRAN cell and transmitting another request to initiate a TAU procedure after resetting the register to indicate a RAT that was established before inter-RAT cell reselection.
Dependencies are inferred from the claim text.