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US 7,460,501 B2Granted
Method for enabling interoperability between data transmission systems conforming to IEEE 802.11 and HIPERLAN standards
AssigneeAT&T Intellectual Property II, L.P.
InventorMatthew J. Sherman
Life of this patent
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Abstract
Mechanisms, in a transmission channel shared by 802.11 systems and HIPERLAN/2 systems are provided to prevent 802.11 terminals from transmitting during time periods allocated to HIPERLAN, so that a single channel can be shared between the two standards. In a particular embodiment, a “super frame” format is used where HIPERLAN transmissions are offered the highest level of protection possible within 802.11, which is needed within the 802.11 Contention Free Period (CFP).
Claims11
A method comprising:
- in a wireless network comprising a first device and a second device, the first device adapted to transmit a first wireless signal using a first access protocol, the second device adapted to transmit a second wireless signal using a second access protocol:
- assembling a spoofing frame sequence from an RTS frame and a CTS frame, the RTS frame transmitted by an access point associated with the first access protocol, the CTS frame transmitted by the first device;
- and
- transmitting the spoofing frame sequence to restrict data transmissions from the first device to the wireless network.
1 more element
Dependencies are inferred from the claim text.