Title:
LOCAL AREA NETWORK CARRIER DETECTING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP3136309
Kind Code:
B2
Abstract:
PURPOSE: To obtain a local area network station capable of attaining high speed and reliable carrier detection.
CONSTITUTION: A local area network uses a radio communication link and includes a network station that separately has two different polarization antennas 14 and 16. Data communication uses a spread spectrum code. A receiver uses an output of a correlating device for an integrator and register circuit 54 and gives a correlating device output sample which is integrated for a plurality of symbol periods. These values are stored in the register, and a peak value and a sum total value are decided from the contents. The calculated values are applied to a spike quality deciding circuit 78 that includes a read table. A spike quality output value that is acquired as a result represents the quality of a received signal and are used for carrier detection and antenna selection.
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Inventors:
Adrien Cummerman
Hans Van Dorist
Hans Van Dorist
Application Number:
JP25285991A
Publication Date:
February 19, 2001
Filing Date:
September 05, 1991
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
H04J13/00; H04B1/709; H04L12/28; H04W74/08; H04W84/12; H04W88/02; (IPC1-7): H04L12/28
Attorney, Agent or Firm:
Hirofumi Mitsumata