Wireless terminal and wireless communication method
First Claim
1. A wireless terminal constituting an ad-hoc network to perform communication, comprising:
- a frame transmitter to transmit a data frame wirelessly, the data frame containing a frame identifier and a variable that is to be modified according to a predetermined rule when the data frame directly received by a first subsequent wireless terminal is forwarded from the first subsequent wireless terminal to a second subsequent wireless terminal, as well as when the data frame is forwarded from the second subsequent wireless terminal to yet another subsequent wireless terminal;
a memory to store a record of the variable at the time of transmission of the data frame by the frame transmitter;
a frame receiver to receive a data frame wirelessly transmitted from one of the first and second subsequent wireless terminals which have forwarded the data frame originally transmitted by the frame transmitter, the received data frame having the same frame identifier as the data frame transmitted by the frame transmitter; and
a frame reception recognizer to recognize that the first subsequent wireless terminal has received the data frame transmitted by the frame transmitter, when a difference between the variable contained in the received data frame and the variable stored in the memory is one, and that the second subsequent wireless terminal has received the data frame transmitted by the transmitting, when the difference between the variable contained in the received data frame and the variable stored in the memory is two.
1 Assignment
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Accused Products
Abstract
A wireless terminal and wireless communication method that can improve data transfer efficiency and reduce traffic. A frame transmitter of a wireless terminal transmits a frame by wireless. A wireless terminal receives the frame transmitted from the frame transmitter and transmits the received frame by wireless to a wireless terminal. A frame receiver receives the frame transmitted from the succeeding wireless terminal to the wireless terminal. When the frame is received by the frame receiver, a frame reception recognizer recognizes that the frame has been received by the succeeding wireless terminal. It is therefore unnecessary for the wireless terminal to receive, from the succeeding wireless terminal, a frame indicative of reception of the frame, so that the data transfer efficiency improves and the traffic reduces.
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Citations
11 Claims
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1. A wireless terminal constituting an ad-hoc network to perform communication, comprising:
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a frame transmitter to transmit a data frame wirelessly, the data frame containing a frame identifier and a variable that is to be modified according to a predetermined rule when the data frame directly received by a first subsequent wireless terminal is forwarded from the first subsequent wireless terminal to a second subsequent wireless terminal, as well as when the data frame is forwarded from the second subsequent wireless terminal to yet another subsequent wireless terminal; a memory to store a record of the variable at the time of transmission of the data frame by the frame transmitter; a frame receiver to receive a data frame wirelessly transmitted from one of the first and second subsequent wireless terminals which have forwarded the data frame originally transmitted by the frame transmitter, the received data frame having the same frame identifier as the data frame transmitted by the frame transmitter; and a frame reception recognizer to recognize that the first subsequent wireless terminal has received the data frame transmitted by the frame transmitter, when a difference between the variable contained in the received data frame and the variable stored in the memory is one, and that the second subsequent wireless terminal has received the data frame transmitted by the transmitting, when the difference between the variable contained in the received data frame and the variable stored in the memory is two. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless communication method for a wireless terminal constituting an ad-hoc network to perform communication, the method comprising:
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transmitting a data frame wirelessly, the data frame containing a frame identifier and a variable that is to be modified according to a predetermined rule when the data frame directly received by a first subsequent wireless terminal is forwarded from the first subsequent wireless terminal to a second subsequent wireless terminal, as well as when the data frame is forwarded from the second subsequent wireless terminal to yet another subsequent wireless terminal; storing in a memory a record of the variable at the time of transmission of the data frame by the transmitting; receiving a data frame wirelessly transmitted from one of the first and second subsequent wireless terminals which have forwarded the data frame originally transmitted by the transmitting, the received data frame having the same frame identifier as the data frame transmitted by the transmitting; recognizing that the first subsequent wireless terminal has received the data frame transmitted by the transmitting, when a difference between the variable contained in the received data frame and the variable stored in the memory is one; and recognizing that the second subsequent wireless terminal has received the data frame transmitted by the transmitting, when the difference between the variable contained in the received data frame and the variable stored in the memory is two.
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Specification