Data unit detection including antenna diversity

Details Data unit detection including antenna diversity Data unit detection including antenna diversity

2004-12-07

2008-11-11

Nguyen, Tony T (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S232100, C455S245100, C342S437000, C342S445000

Reexamination Certificate

active

07450922

ABSTRACT:
A system adjusts a receiving device in response to sensing symbols. An automatic gain control is adjusted in response to receiving a first symbol of a data unit from a first antenna. After adjusting the automatic gain control at least a second and a third symbol of the data unit are received. The automatic gain control in response to receiving a fourth symbol of the data unit from a second antenna is received. After adjusting the automatic gain control at least a fifth and a sixth symbol of the data unit is received. At least one of the first and second antenna is selected based upon a function of a first and second energy, calculated using the second and third symbol, and the fifth and sixth symbol, respectively.

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Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High-speed Physical Layer in the 5 GHZ Band; IEE Std 802.11a-1999, 91 pages.

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