Transmitting and receiving system, transmitting equipment, and transmitting method
First Claim
1. A transmitting and receiving system for exchanging, between a transmitter and a receiver, communication data indicating either a first data attribute or a second data attribute having a lower priority in communications than the first data attribute, wherein the transmitter includes:
- a data input section for receiving the communication data, a first analysis section for determining a data attribute of the communication data received by the data input section, and a first transmitting section in which an allowable number of retransmissions for communication data indicating the second data attribute is limited, wherein if the first analysis section determines that the communication. data indicates the first data attribute, the first transmitting section transmits that communication data and requests that an acknowledgement signal be sent back, and if the first analysis section determines that the communication data indicates the second data attribute, the first transmitting section transmits that communication data and requests that the acknowledgement signal be sent back according to the allowable number of retransmissions;
the receiver includes;
a receiving section for receiving the communication data from the transmitter, a second analysis section for, when the receiving section receives the communication data, determining whether or not an acknowledgement signal for that communication data needs to be sent back, and a second transmitting section for, if the second analysis section determines that the acknowledgement signal needs to be sent back, sending back the acknowledgement signal;
where the first transmitting section transmits the communication data indicating the first data attribute, if the acknowledgement signal is not sent back, the first transmitting section retransmits that communication data, and where the first transmitting section transmits the communication data indicating the second data attribute, the first transmitting section retransmits that communication data in accordance with the allowable number of retransmissions and presence or absence of the acknowledgement signal sent back; and
the allowable number of retransmissions for the communication data indicating the second data attribute is smaller than that for the communication data indicating the first data attribute.
2 Assignments
0 Petitions
Accused Products
Abstract
In a case where it is determined that communication data indicates a first data attribute in a transmitter, that communication data is transmitted and an acknowledgement signal is requested to be sent back from a receiver. If the acknowledgement signal is not sent back, that communication data is retransmitted. In a case where it is determined that the communication data indicates a second data attribute in the transmitter, that communication data is transmitted and an acknowledgement signal is requested to be sent back according to an allowable number of retransmissions corresponding to the second data attribute. And that communication data is retransmitted in accordance with the allowable number of retransmissions and presence or absence of the acknowledgement signal sent back. The allowable number of retransmissions corresponding to the second data attribute is smaller than that corresponding to the first data attribute.
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Citations
20 Claims
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1. A transmitting and receiving system for exchanging, between a transmitter and a receiver, communication data indicating either a first data attribute or a second data attribute having a lower priority in communications than the first data attribute,
wherein the transmitter includes: -
a data input section for receiving the communication data, a first analysis section for determining a data attribute of the communication data received by the data input section, and a first transmitting section in which an allowable number of retransmissions for communication data indicating the second data attribute is limited, wherein if the first analysis section determines that the communication. data indicates the first data attribute, the first transmitting section transmits that communication data and requests that an acknowledgement signal be sent back, and if the first analysis section determines that the communication data indicates the second data attribute, the first transmitting section transmits that communication data and requests that the acknowledgement signal be sent back according to the allowable number of retransmissions;
the receiver includes;
a receiving section for receiving the communication data from the transmitter, a second analysis section for, when the receiving section receives the communication data, determining whether or not an acknowledgement signal for that communication data needs to be sent back, and a second transmitting section for, if the second analysis section determines that the acknowledgement signal needs to be sent back, sending back the acknowledgement signal;
where the first transmitting section transmits the communication data indicating the first data attribute, if the acknowledgement signal is not sent back, the first transmitting section retransmits that communication data, and where the first transmitting section transmits the communication data indicating the second data attribute, the first transmitting section retransmits that communication data in accordance with the allowable number of retransmissions and presence or absence of the acknowledgement signal sent back; and
the allowable number of retransmissions for the communication data indicating the second data attribute is smaller than that for the communication data indicating the first data attribute. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A transmitter for transmitting communication data indicating either a first data attribute or a second data attribute having a lower priority in communications than the first data attribute and for receiving an acknowledgement signal from a receiver, the transmitter comprising:
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a data input section for receiving the communication data, an analysis section for determining a data attribute of the communication data received by the data input section, and a transmitting section in which an allowable number of retransmissions for communication data indicating the second data attribute is limited, wherein if the analysis section determines that the communication data indicates the first data attribute, the transmitting section transmits that communication data and requests that an acknowledgement signal be sent back, and if the analysis section determines that the communication data indicates the second data attribute, the transmitting section transmits that communication data and requests that the acknowledgement signal be sent back according to the allowable number of retransmissions, wherein where the transmitting section transmits the communication data indicating the first data attribute, if the acknowledgement signal is not sent back, the transmitting section retransmits that communication data, and where the transmitting section transmits the communication data indicating the second data attribute, the transmitting section retransmits that communication data in accordance with the allowable number of retransmissions and presence or absence of the acknowledgement signal sent back; and
the allowable number of retransmissions for the communication data indicating the second data attribute is smaller than that for the communication data indicating the first data attribute. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A transmitting method in which a transmitter receives communication data indicating either a first data attribute or a second data attribute having a lower priority in communications than the first data attribute and receives an acknowledgement signal from a receiver, the method comprising the steps of:
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(a) determining a data attribute of the communication data received by the transmitter;
(b) if it is determined in the step (a) that the communication data indicates the first data attribute, transmitting that communication data and requesting that an acknowledgement signal be sent back, and if it is determined in the step (a) that the communication data indicates the second data attribute, transmitting that communication data and requesting that the acknowledgement signal be sent back according to an allowable number of retransmissions for the communication data indicating the second data attribute; and
(c) where the communication data indicating the first data attribute is transmitted in the step (b), if the acknowledgement signal is not sent back, retransmitting that communication data, and where the communication data indicating the second data attribute is transmitted in the step (b), retransmitting that communication data in accordance with the allowable number of retransmissions and presence or absence of the acknowledgement signal sent back, wherein the allowable number of retransmissions for the communication data indicating the second data attribute is smaller than that for the communication data indicating the first data attribute. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification