Synchronous techniques for timing recovery in BISDN

A new reconstruction approach in the srts method

“…That is, the pulse stream with interpulse intervals given by is not perfectly periodic, and hence, has jitter. It has been shown [6], [12] that this jitter is similar to the so-called waiting-time jitter, produced by justification techniques such as bit stuffing [15].…”

“…End-to-end timing transfer for CBR services carried over AAL1 [1], [6] is achieved by sending information about the associated clock, known as the service clock. Fig.…”

“…where is the minimum number of bits to represent the RTS, where it is still uniquely identifiable [1], [6]. It should be noted that the SRTS method inherently introduces jitter in the encoded representation of the divided-down service clock.…”

“…The adaptive clock method is, in fact, a class of methods [1] in which the service clock is reconstructed at the receiver by adjusting a local clock so that the level of the receive buffer is maintained at a fixed level [1], [4], [5]. The second method proposed is the synchronous residual time stamp (SRTS) method [1], [6]- [8] which has been widely implemented.…”

“…An important aspect of the SRTS method is the regeneration of the service clock at the destination. The earliest published regeneration technique appears in [6]. Other techniques for service regeneration have also appeared in patents [9]- [11].…”