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US 8,942,702 B2Granted
Inter-radio access technology (IRAT) handover
AssigneeQUALCOMM Incorporated
InventorsTom Chin, Guangming Shi, Kuo-Chun Lee
Life of this patent
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Abstract
A user equipment (UE) acquires a time of a first cell of a first RAT and receives instructions to handover from a source RAT to the first cell of a first target RAT. The handover is delayed based on the acquired timing and the UE communicates on the source RAT during the delay.
Claims18
A method of wireless communication, comprising:
- storing timing of a first cell of a first target radio access technology (RAT);
- receiving instructions to handover from a source RAT to the first cell of the first target RAT after storing the timing of the first cell of the first RAT;
- delaying the handover based on the stored timing for a delay period;
- and
- communicating on the source RAT during the delay period.
2 more elements
An apparatus for wireless communication, comprising:
- a memory;
- and
- at least one processor coupled to the memory, the at least one processor being configured:
- to store timing of a first cell of a first target radio access technology (RAT);
- to receive instructions to handover from a source RAT to the first cell of the first target RAT after storing the timing of the first cell of the first RAT;
- to delay the handover based on the stored timing for a delay period;
- and
- to communicate on the source RAT during the delay period.
5 more elements
A computer program product for wireless communication in a wireless network, comprising:
- a non-transitory computer-readable medium having non-transitory program code recorded thereon, the program code comprising:
- program code to store timing of a first cell of a first target radio access technology (RAT);
- program code to receive instructions to handover from a source RAT to the first cell of the first target RAT after storing the timing of the first cell of the first RAT;
- program code to delay the handover based on the stored timing for a delay period;
- and
- program code to communicate on the source RAT during the delay period.
3 more elements
An apparatus for wireless communication, comprising:
- means for storing timing of a first cell of a first target radio access technology (RAT);
- means for receiving instructions to handover from a source RAT to the first cell of the first target RAT after storing the timing of the first cell of the first RAT;
- means for delaying the handover based on the stored timing for a delay period;
- and
- means for communicating on the source RAT during the delay period.
2 more elements
Dependencies are inferred from the claim text.