Communication system
AssigneeMitsubishi Electric Corporation
InventorsMitsuru Mochizuki, Noriyuki Fukui
Life of this patent
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Abstract
A communication system capable of a stable communication operation between a base station device and a communication terminal device. A UE is configured to communicate with an MeNB directly or through a SeNB. The UE is set to transmit, to the MeNB and the SeNB, transmission data addressed to the MeNB when an amount of the transmission data exceeds a predetermined threshold. The UE is set to transmit the transmission data not to the SeNB but to the MeNB when the amount is smaller than or equal to the threshold. The threshold is changed so that the transmission data is transmitted to the MeNB and the SeNB, when the SeNB is set to communicate with the UE with radio resources periodically allocated and the amount of the transmission data is smaller than or equal to the threshold.
Claims8
A communication system comprising:
- a first base station device,
- a second base station device, and
- a communication terminal device capable of radio communication with the first base station device and the second base station device, wherein
- the communication terminal device is configured to communicate with the first base station device via a first path for direct communication with the first base station device and via a second path for communication with the first base station device through the second base station device,
- the communication terminal device is configured to:
- transmit transmission data addressed to the first base station device to the first base station device and the second base station device when an amount of the transmission data exceeds a threshold, and
- transmit the transmission data not to the second base station device but to the first base station device when the amount of the transmission data is smaller than or equal to the threshold, and
- the second base station is configured to:
- at a time when the second base station device is set to communicate with the communication terminal device with radio resources that are periodically allocated, change the threshold so that the communication terminal device transmits the transmission data to the first base station device and the second base station device, and
- notify the communication terminal of the changed threshold.
A communication system comprising:
- a first base station device,
- a second base station device, and
- a communication terminal device capable of radio communication with the first base station device and the second base station device, wherein
- the communication terminal device is configured to communicate with the first base station device via a first path for direct communication with the first base station device and via a second path for communication with the first base station device through the second base station device,
- the communication terminal device is configured to
- transmit transmission data addressed to the first base station device to the first base station device and the second base station device when an amount of the transmission data is larger than or equal to a threshold, and
- transmit the transmission data not to the second base station device but to the first base station device when the amount of the transmission data is smaller than the threshold, and
- the second base station is configured to:
- at a time when the second base station device is set to communicate with the communication terminal device with radio resources that are periodically allocated, change the threshold so that the communication terminal device transmits the transmission data to the first base station device and the second base station device, and
- notify the communication terminal of the changed threshold.
A communication system comprising:
- a first base station device,
- a second base station device, and
- a communication terminal device capable of radio communication with the first base station device and the second base station device, wherein
- the communication terminal device is configured to communicate with the first base station device via a first path for direct communication with the first base station device and via a second path for communication with the first base station device through the second base station device,
- the communication terminal device is configured to:
- transmit transmission data addressed to the first base station device to the first base station device and the second base station device when an amount of the transmission data exceeds a threshold, and
- transmit the transmission data not to the second base station device but to the first base station device when the amount of the transmission data is smaller than or equal to the threshold,
- the communication terminal device is configured to, at a time when the second base station device is set to communicate with the communication terminal device with radio resources that are periodically allocated and the amount of the transmission data is smaller than or equal to the threshold:
- transmit the transmission data to the first base station device, and
- transmit an end signal to the second base station device, and
- the end signal represents an end of the communication with the communication terminal device with the radio resources that are periodically allocated.
A communication system comprising:
- a first base station device,
- a second base station device, and
- a communication terminal device capable of radio communication with the first base station device and the second base station device, wherein
- the communication terminal device is configured to communicate with the first base station device via a first path for direct communication with the first base station device and via a second path for communication with the first base station device through the second base station device,
- the communication terminal device is configured to:
- transmit transmission data addressed to the first base station device to the first base station device and the second base station device when an amount of the transmission data is larger than or equal to a threshold, and
- transmit the transmission data not to the second base station device but to the first base station device when the amount of the transmission data is smaller than the threshold,
- the communication terminal device is configured to, at a time when the second base station device is set to communicate with the communication terminal device with radio resources that are periodically allocated and the amount of the transmission data is smaller than the threshold:
- transmit the transmission data to the first base station device, and
- transmit an end signal to the second base station device, and
- the end signal represents an end of the communication with the communication terminal device with the radio resources that are periodically allocated.
Dependencies are inferred from the claim text.