Methods and apparatus for performing time interleaved multiplexe

Details Methods and apparatus for performing time interleaved multiplexe Methods and apparatus for performing time interleaved multiplexe

1989-02-09

1991-01-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370112, 370 99, H04J 307

Patent

active

049875701

ABSTRACT:
Methods and apparatus are set forth which improved the sub-rate channel carrying capacity and the efficiency of bandwidth usage, over the CCITT I.463 standard, for switching systems having a switching "granularity", defined as the smallest channel size that can be switched through the system, of better then 64 Kbps (e.g. a switching system that can switch 8 Kbps fragments). These methods and apparatus are capable of performing rate adaptation for multiple synchronized subrate channels in accordance with a predefined multiplexing protocol. The protocol calls for "time interleaved" multiplexed rate adaptation to be performed, i.e., multiple sub-rate channel data is packaged into fragment size envelopes (or integer multiples thereof). The width of a fragment is also matched (ideally equal) to the granularity of the system's switch. As a result of using the time interleaved multiplexed rate adaptation scheme, the rate adaptation process, the channel carrying capacity of the system at large, and the use of the system's switching and bandwidth capacity are all improved.

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