Wireless communication system and wireless LAN access point
First Claim
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1. A wireless communication system comprising:
- a wireless access point comprising a table which stores segment information which represents a wireless network group to which the wireless communication terminal belongs, means for embedding the segment information of target transmission wireless communication terminal in a frame according to the table, and means for transmitting the frame; and
a wireless communication terminal comprising means for receiving the frame transmitted by said transmission means, means for determining whether the segment information embedded in the frame received by said reception means coincides with segment information of said wireless communication terminal, and means for receiving a packet which contains the frame when said determination means determines that the received segment information coincides with the segment information of said wireless communication terminal.
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Abstract
This invention provides a wireless LAN communication system capable of separating a wireless LAN network at a data link layer level. This invention adds an identifier representing a network segment to a frame used in wireless communication. A wireless LAN client receives only data having an identifier which coincides with an identifier representing its own network segment. The wireless LAN network can be separated into a plurality of networks at a data link layer level within the same radio frequency band.
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Citations
18 Claims
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1. A wireless communication system comprising:
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a wireless access point comprising a table which stores segment information which represents a wireless network group to which the wireless communication terminal belongs, means for embedding the segment information of target transmission wireless communication terminal in a frame according to the table, and means for transmitting the frame; and
a wireless communication terminal comprising means for receiving the frame transmitted by said transmission means, means for determining whether the segment information embedded in the frame received by said reception means coincides with segment information of said wireless communication terminal, and means for receiving a packet which contains the frame when said determination means determines that the received segment information coincides with the segment information of said wireless communication terminal. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless communication terminal comprising:
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means for receiving a frame which contains segment information which represents a wireless network group;
means for determining whether the segment information embedded in the frame received by said reception means coincides with segment information of said wireless communication terminal; and
packet processing means for receiving a packet which contains the frame when said determination means determines that the segment information coincides with the segment information of said wireless communication terminal. - View Dependent Claims (7, 8, 9)
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10. A wireless access point comprising:
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a table which stores segment information which represents a wireless network group to which the wireless communication terminal belongs;
means for setting in a frame the segment information of the wireless communication terminal on the basis of the table; and
means for transmitting the frame. - View Dependent Claims (11, 12)
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13. A wireless communication terminal comprising:
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means for transmitting an association request which contains a MAC address of said wireless communication terminal;
means for receiving an association response which contains segment information which represents a wireless network, in response to the association request transmitted by said transmission means; and
means for storing the segment information contained in the association response received by said reception means.
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14. A wireless communication method at a wireless LAN access point comprising a table which stores in association with each other an address of a wireless communication terminal and segment information which represents a wireless network to which the wireless communication terminal belongs, comprising:
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setting the segment information of the wireless communication terminal in a frame on the basis of the table; and
transmitting the frame. - View Dependent Claims (15)
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16. A wireless communication method in a wireless communication terminal, comprising:
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receiving from a wireless LAN access point a frame which contains segment information which represents a wireless network;
determining whether the segment information embedded in the received frame coincides with segment information of the wireless communication terminal; and
receiving a packet which contains the frame when the segment information is determined to coincide with the segment information of the wireless communication terminal, and discarding the packet which contains the frame when the segment information is not determined to coincide with the segment information of the wireless communication terminal.
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17. A wireless communication terminal comprising:
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means for wirelessly communicating with a wireless access point;
means for storing group identification information which is notified from the wireless access point, and used to identify a wireless network to which said wireless communication terminal belongs; and
means for looking up said storage means and adding the group information to transmission data when the wireless communication terminal is to transmit the transmission data through said wireless communication means.
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18. A wireless communication terminal comprising:
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means for wirelessly communicating with a wireless access point;
means for storing group identification information which is notified from the wireless access point, and used to identify a wireless network to which said wireless communication terminal belongs; and
means for receiving/discarding reception data on the basis of group identification information added to the reception data and the group identification information stored in said storage means when the wireless communication terminal is to receive the reception data through said wireless communication means.
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Specification