Multiplex communications – Communication techniques for information carried in plural... – Assembly or disassembly of messages having address headers
Reexamination Certificate
2005-01-25
2005-01-25
Chin, Wellington (Department: 2664)
Multiplex communications
Communication techniques for information carried in plural...
Assembly or disassembly of messages having address headers
C370S535000, C370S539000, C370S349000, C370S350000, C370S503000, C370S514000
Reexamination Certificate
active
06847655
ABSTRACT:
A method is described for transmitting/receiving STM-4 (SDH) or STS-12 (SONET) digital signals over two RF carriers in a radio regenerator section. The method provides for performing, in transmission, a de-interleaving operation of the standard frame to be transmitted in such a way as to subdivide it by columns into two sub-frames. The RSOH bytes of the standard frame are terminated and transmitted over the two working channels or over one service channel and one working channel so as to be protected in a 1+1 configuration: In reception, a column interleaving operation recombines together the two sub-frames and recovers and correctly rearranges the RSOH bytes so terminated as to obtain the standard frame originally received from the transmitter. The generated sub-frames are synchronized with the standard frame.
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ITU-T Recommendation G.957 dated Jun. 1999 entitled Optical interfaces for equipments and systems relating to the synchoronous digital hierachy, Series G: Transmission Systems and Media, Digital Systems and Networks.
High Capacity Digital Radio Relay Systems Carrying STM-4 in Two 40 MHz channels or 2×STM-1 in 40 MHz Channel with Alternate Channel Arrangement, Revised Feb. 9, 1999, DEN/TM-4065.
Transmission and Multiplexing (TM) Digital Radio Relay Systems (DRRS); High Capacity DRRS Transmitting STM-4 or 4×STM-1 in a 40 MHz Radio Frequency Channel Using Co-Channel Dual Polarized (CCDP) Operation, Draft EN 301 277, V1.1.1 (Aug. 1998) European Standard (Telecommunications series).
Fixed Radio Systems; Point-to-Point Equipment; High Capacity Digital Radio Relay Systems Carrying 2×STM-1, 4×STM-1 or STM-4 signals in bands with 55/56 MHz channel spacing, Draft DEN/TM 4105 (Jun. 2000), European Standard (Telecommunications series).
Colombo Claudio
Garofoli Primo
Alcatel
Chin Wellington
Ho Chuong
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