Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2007-09-05
2011-10-18
Nguyen, Hanh (Department: 2473)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S328000
Reexamination Certificate
active
08040898
ABSTRACT:
A wireless LAN communications system with high transmission efficiency is provided. When a first wireless terminal normally receives a Data1 signal from an access point, the wireless terminal transmits an ACK signal. In the case where the wireless terminal has transmission data, the client transmits a Data2 signal to the access point after an SIFS interval. Meanwhile, when the access point or a second wireless terminal receives the ACK signal from the first wireless terminal, the second client waits a (DIFS+random number) interval, in accordance with the IEEE 802.11 standard. As a result, the first wireless terminal is able to transmit the Data2 signal with priority, without interference from signals from other devices.
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“Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications” Institute of Electrical and Electronics Engineers, ANSI/IEEE Std 802.11, 1999 Edition.
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Nguyen Hanh
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