Method for dropping packet data, radio communication device, and mobile communication system
AssigneeFujitsu Limited
InventorsYoshiaki Ohta, Yoshiharu Tajima, Kazuhisa Obuchi, Ryuichi Takechi, Naotoshi Watanabe, Yoshinori Tanaka
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Abstract
A control method in a mobile communication system, that includes configuring a timer corresponding to packet data for discarding the packet data according to a value of the timer; maintaining the value of the timer corresponding to the packet data when a handover is performed without restarting or resetting the value of the timer; and discarding the corresponding packet data when the maintained value of the timer reaches a given value.
Claims18
A control method in a mobile communication system, comprising:
- configuring a timer corresponding to packet data for discarding the packet data according to a value of the timer;
- taking over the value of the timer corresponding to the packet data when a handover is performed;
- and
- discarding the corresponding packet data when the maintained value of the timer, starting at reception of the packet data, reaches a given value.
A control method in a mobile communication system, comprising:
- storing packet data to be sent;
- discarding the packet data according to a value of a timer corresponding to the packet data;
- transferring the packet data from a source base station to a target base station and transferring the value of the timer corresponding to the packet data to be transferred when a handover is performed;
- wherein the target base station sets a new value of the timer for the transferred packet data with the transferred value of the timer or the transferred value of the timer corrected with a transfer delay time, and when the new value of the timer, starting at handover from the new value, reaches a given value, discards the corresponding packet data.
A control method in a mobile communication system, comprising:
- storing packet data to be sent;
- discarding the packet data according to a value of a timer corresponding to the packet data;
- transferring the packet data from a source base station to a target base station, and correcting the value of the timer corresponding to the packet data to be transferred with a transfer delay time and then transferring the value of the timer when a handover is performed,
- wherein the target base station sets a new value of the timer for the corresponding packet data with the corrected value of the timer transferred thereto, and when the value of the timer, starting at handover from the new value, reaches a given value, discards the corresponding packet data.
A radio communication device comprising:
- a buffer configured to store packet data to be sent;
- and
- a controller configured to take over a value of a timer corresponding to the packet data when a handover is performed, and to discard the corresponding packet data when the value of the timer, starting at reception of the packet data, reaches a given value, wherein the radio communication device discards the packet data stored in the buffer according to the value of the timer corresponding to the packet data.
A base station comprising:
- a transmitter configured to transmit control information relating to a timer for discarding packet data stored in a radio communication device;
- and
- a controller configured to control the timer for the radio communication device by transmitting the control information, the radio communication device including
- a buffer configured to store the packet data to be sent to the base station, and
- a controller configured to take over a value of the timer corresponding to the packet data when a handover is performed, and to discard the corresponding packet data when the value of the timer, starting at reception of the packet data, reaches a given value, wherein the radio communication device discards the packet data stored in the buffer according to the value of the timer corresponding to the packet data.
Dependencies are inferred from the claim text.