Wireless communication system, wireless relay unit and...

Details Wireless communication system, wireless relay unit and... Wireless communication system, wireless relay unit and...

2006-03-13

2009-06-02

Anderson, Matthew D (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S013100

Reexamination Certificate

active

07542719

ABSTRACT:
When wireless terminal A and wireless terminal B respectively transmit signals (T123, T133), and Access Point (AP) in the wireless LAN system recognizes occurrence of contention, if AP successfully recognizes an address of sending source of this signal and a duration of this signal as a result of analyzing any signal from the wireless terminal A, AP transmits a CTS signal which gives a clearance for transmission to the wireless terminal A which is the source of sending the signal (T113). The wireless terminal A which is given the clearance for transmission by the CTS signal, resends a signal identical to the one previously sent (T127), whereas the wireless terminal B which is not given the clearance for transmission by the CTS signal withholds a signal transmission during the duration indicated by the CTS signal.

REFERENCES:
patent: 5152002 (1992-09-01), Leslie et al.
patent: 5845192 (1998-12-01), Saunders
patent: 6132306 (2000-10-01), Trompower
patent: 2005/0014464 (2005-01-01), Larsson
patent: 2006/0223439 (2006-10-01), Pinel et al.
“Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications” ANSI/IEEE std 802. 11, 1999 Edition p. 76-77 9.2.5.1. p. 81-82 9.2.5.6. and 9.2.5.7.

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