| 摘要 |
Various methods are disclosed for operating a mobile station of a type that receives a digital traffic channel, such as an IS-136 compliant mobile station. One of the methods includes steps of (a) receiving a signal from a forward traffic channel and decoding the received signal using a first predetermined decoding technique to generate a first bit error rate (BER); (b) decoding the received signal using a second predetermined decoding technique to generate a second BER; (c) comparing the first BER to the second BER; and (d) declaring the received signal to be one of a FACCH message or user data depending on a result of the comparison. The step of declaring may include a preliminary step, for a case where the step of comparing indicates that the received signal is a FACCH message, of first verifying that the received signal contains a valid FACCH message type.
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