Wireless communication method, wireless communication apparatus, and wireless communication system
First Claim
1. A wireless communication method of a wireless communication system having a wireless base station, wireless terminal stations belonging to a first group and which are capable of performing wireless communication by using both a first frequency channel and a second frequency channel, and wireless terminal stations belonging to a second group and which are capable of performing wireless communication by using only the first frequency channel, the method comprising:
- communicating between at least one wireless terminal station belonging to the first group and the wireless base station by using both the first frequency channel and the second frequency channel in a first communication period;
communicating between at least one wireless terminal station belonging to the second group and the wireless base station by using the first frequency channel in a second communication period; and
at least two wireless terminal stations belonging to the first group performing direct communication by using the second frequency channel without communicating through the wireless base station in the second communication period.
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Abstract
In a wireless communication system having a wireless base station, wireless terminal stations belonging to a first group which performs wireless communication while sharing different frequency channels, and wireless terminal stations belonging to a second group which performs wireless communication by using one frequency channel, a first communication period and a second communication period is alternately repeated. In this system, a wireless terminal station belonging to the first or the second group communicates with the wireless base station by using a first frequency channel in the first communication period. Direct communication between two wireless terminal stations belonging to the first group by using a second frequency channel without through the wireless base station is performed in the first communication period. Then, a wireless terminal station belonging to the first group communicates with the wireless base station by using both the first and the second frequency channels.
21 Citations
12 Claims
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1. A wireless communication method of a wireless communication system having a wireless base station, wireless terminal stations belonging to a first group and which are capable of performing wireless communication by using both a first frequency channel and a second frequency channel, and wireless terminal stations belonging to a second group and which are capable of performing wireless communication by using only the first frequency channel, the method comprising:
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communicating between at least one wireless terminal station belonging to the first group and the wireless base station by using both the first frequency channel and the second frequency channel in a first communication period; communicating between at least one wireless terminal station belonging to the second group and the wireless base station by using the first frequency channel in a second communication period; and at least two wireless terminal stations belonging to the first group performing direct communication by using the second frequency channel without communicating through the wireless base station in the second communication period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless communication system, comprising:
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a wireless base station, wireless terminal stations belonging to a first group and which are capable of performing wireless communication by using both a first frequency channel and a second frequency channel, and wireless terminal stations belonging to a second group and which are capable of performing wireless communication by using only the first frequency channel, wherein at least one wireless terminal station belonging to the first group is configured to communicate with the wireless base station by using both the first frequency channel and the second frequency channel in a first communication period, at least one wireless terminal station belonging to the second group is configured to communicate with the wireless base station by using a first frequency channel in a second communication period, and at least two wireless terminal stations belonging to the first group are configured to perform direct communication by using the second frequency channel without communicating through the wireless base station in the second communication period.
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Specification