Communication control method, transmission device and computer program
First Claim
1. A communication control method causing a transmission device for transmitting a data unit to a reception device to perform processes comprising:
- a count process of counting transmission request times that are times of a request that is made by the reception device for transmission of the data unit; and
a control information transmission process of transmitting, to the reception device, control information to the effect that a process of receiving the data unit should be skipped when the number of the transmission request times for the data unit reaches a threshold value.
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Accused Products
Abstract
A method for controlling radio communication such as mobile phone communication is provided for preventing an endless loop of a request for retransmission that is issued by a device on a reception side to a device on a transmission side. The transmission device performs processes of counting, for each RLC-PDU, the number of times when a request for retransmission is issued by the reception device (#524), and transmitting control information indicating that a process of receiving the RLC-PDU should be skipped to the reception device when the number of times of the request for retransmission of the RLC-PDU reaches a threshold value (#528).
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Citations
12 Claims
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1. A communication control method causing a transmission device for transmitting a data unit to a reception device to perform processes comprising:
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a count process of counting transmission request times that are times of a request that is made by the reception device for transmission of the data unit; and a control information transmission process of transmitting, to the reception device, control information to the effect that a process of receiving the data unit should be skipped when the number of the transmission request times for the data unit reaches a threshold value. - View Dependent Claims (2, 3, 4, 5)
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6. A method for counting transmission times used in a transmission device that can transmit, to a reception device, a plurality of second data units obtained by dividing a first data unit, one by one, and can transmit, to the reception device, a plurality of third data units obtained by dividing a part or a whole of the first data unit, one by one, the method comprising;
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preparing a counter that indicates the transmission times; a first step of increasing the transmission times every time when the transmission device transmits the first data unit; a second step of determining whether or not the transmission times should be increased when the transmission device transmits the third data unit based on a first position, in the first data unit, of the third data unit transmitted by the transmission device, or a second position, in the first data unit, of each of the second data units transmitted by the transmission device; and a third step of increasing the transmission times every time when it is determined, in the second step, that the transmission times should be increased. - View Dependent Claims (7, 8, 9)
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10. A transmission device for transmitting a data unit to a reception device, the transmission device comprising:
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a count portion that counts transmission request times that are times of a request that is made by the reception device for transmission of the data unit; and a control information transmission portion that transmits, to the reception device, control information to the effect that a process of receiving the data unit should be skipped when the number of the transmission request times for the data unit reaches a threshold value.
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11. A transmission device for transmitting a first data unit to a reception device, the transmission device comprising:
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a first transmission portion that transmits, to the reception device, a plurality of second data units obtained by dividing the first data unit, one by one; a second transmission portion that transmits, to the reception device, a plurality of third data units obtained by dividing a part or a whole of the first data unit that has not been received by the reception device, one by one; a counter that counts transmission times; a first increasing portion that increases the transmission times every time when the first data unit is transmitted; a determination portion that determines whether or not the transmission times should be increased when the third data unit is transmitted based on a first position, in the first data unit, of the third data unit transmitted by the transmission device, or a second position, in the first data unit, of each of the second data units transmitted by the transmission device; and a second increasing portion that increases the transmission times every time when the determination portion determines that the transmission times should be increased.
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12. A computer program for use in a transmission device for transmitting a data unit to a reception device, the computer program making the transmission device execute processes comprising:
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a count process of counting transmission request times that are times of a request that is made by the reception device for transmission of the data unit; and a control information transmission process of transmitting, to the reception device, control information to the effect that a process of receiving the data unit should be skipped when the number of the transmission request times for the data unit reaches a threshold value.
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Specification