| 摘要 |
<p>The invention relates to a method for receiving a signal used in a synchronous digital telecommunication system, such as the SDH or SONET system. In order that frame synchronization could be found as quickly as possible after information about a change of the pointer value has been received e.g. as a result of transmission errors, a certain number of pointers following the change are checked, and the old pointer value is restored if at least half of said number of pointers following the change have the old pointer value. At least in the cases where exactly half of said number of pointers following the change have the old pointer value, the return is effected only if the number of new pointer values in said number of pointers is smaller than a certain predetermined number.</p> |
