Transmitting device and buffer control method
AssigneeFujitsu Limited
InventorsYoshiaki Ohta, Takayoshi Ode, Yoshihiro Kawasaki, Nobuhisa Aoki
Life of this patent
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Abstract
A transmitting device includes: a first layer processor configured to include a buffer to store therein transmission data, the first layer processor configured to execute processing for a first layer on the transmission data; a second layer processor configured to execute processing for a second layer that differs from the first layer on the transmission data; and a transmitter configured to transmit the transmission data processed by the first layer processor and the second layer processor. The first layer processor discards the transmission data stored in the buffer in accordance with a parameter used for transmission control in the processing for the second layer.
Claims7
A transmitting device comprising:
- a first layer processor configured to include a buffer to store therein transmission data, the first layer processor configured to execute processing for a first layer on the transmission data;
- a second layer processor configured to execute processing for a second layer that differs from the first layer on the transmission data;
- and
- a transmitter configured to transmit the transmission data processed by the first layer processor and the second layer processor, wherein
- the second layer processor executes processing for a medium access control (MAC) layer on the transmission data, and
- the first layer processor executes processing for a packet data convergence protocol (PDCP) layer on the transmission data, and discards the transmission data stored in the buffer, when a time corresponding to a maximum transmission time for a physical uplink shared channel (PUSCH) used for priority control for the MAC layer expires after the transmission data has been stored in the buffer, the time being shorter than a discard time that is predetermined in the PDCP layer.
A buffer control method comprising:
- executing processing for a packet data convergence protocol (PDCP) layer on transmission data stored in a buffer;
- executing processing for a medium access control (MAC) layer on the transmission data;
- and
- discarding the transmission data stored in the buffer, when a time corresponding to a maximum transmission time for a physical uplink shared channel (PUSCH) used for priority control for the MAC layer expires after the transmission data has been stored in the buffer, the time being shorter than a discard time that is predetermined in the PDCP layer.
A base station device that controls a terminal device by radio resource control (RRC) signaling, the base station device comprising:
- a controller configured to notify the terminal device, by the RRC signaling, of a time corresponding to a maximum transmission time for a physical uplink shared channel (PUSCH) used for priority control for a medium access control (MAC) layer expires after transmission data has been stored in a buffer of the terminal device, the time being shorter than a discard time that is predetermined in a packet data convergence protocol (PDCP) layer.
A wireless communication system comprising a terminal device and a base station device that controls the terminal device by radio resource control (RRC) signaling, wherein
- the terminal device comprises:
- a first layer processor that includes a buffer configured to store therein transmission data, the first layer processor being configured to execute processing for a first layer on the transmission data;
- a second layer processor configured to execute processing for a second layer that differs from the first layer on the transmission data;
- and
- a transmitter configured to transmit the transmission data processed by the first layer processor and the second layer processor, wherein
- the second layer processor executes processing for a medium access control (MAC) layer on the transmission data, and
- the first layer processor executes processing for a packet data convergence protocol (PDCP) layer on the transmission data, and discards the transmission data stored in the buffer, when a time notified from the base station device by the RRC signaling and corresponding to a maximum transmission time for a physical uplink shared channel (PUSCH) used for priority control for the MAC layer expires after the transmission data has been stored in the buffer, the time being shorter than a discard time that is predetermined in the PDCP layer.
Dependencies are inferred from the claim text.