| 摘要 |
There is provided a technique for ensuring that the order in which a terminal, when performing a three-party handover, receives packets is the same as the order in which a transmission terminal transmits those packets. When a terminal device successively handovers among a plurality of radio base station routers, a radio base station router serving as an anchor during the handovers buffers packets addressed to the terminal device, and forwards those packets by switching between a tunnel between a radio base station from which the terminal device moves out and the anchor radio base station and a tunnel between the anchor radio base station and a base station to which the terminal device moves.
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