| 摘要 |
<p>A method for detecting a PN (Pseudo Noise) pattern for a remote loopback test in a communication system includes the following first through fifth steps. The first step receives a first n-bit pattern (n is an arbitrary number) which is a part of the PN pattern. The second step leftwardly shifts n bits of the first n-bit pattern by a first number of bits, so that a second n-bit pattern is generated. The third step executes an exclusive-OR operation on the n bits of the first n-bit pattern and n bits of the second n-bit pattern, so that a third n-bit pattern is generated. The fourth step rightwardly shifts n bits of the third n-bit pattern by a second number of bits, so that a fourth n-bit pattern is generated. The fifth step executes an exclusive-OR operation on the n bits of the third n-bit patterns and n bits of the fourth n-bit patterns, so that a fifth n-bit pattern is generated. The fifth n-bit pattern is a sixth n-bit pattern which is received after the first n-bit pattern. The first through fifth are repeatedly carried out each time n bits of the first n-bit pattern are received at the first step.</p> |
