Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2011-04-05
2011-04-05
Nguyen, Brian D (Department: 2472)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S410000
Reexamination Certificate
active
07920591
ABSTRACT:
A method and a device for realizing dynamic adjustment of data bandwidth of the invention are disclosed. The method comprises adding a control channel in a PCM trunk link to describe occupancy condition of time slots for current services. The device comprises a control word process circuit, a time slot distribution circuit and a CPU interface circuit, wherein the control word process circuit is designed to complete abstraction and insertion of control information in a control channel of E1/T1 link, the time slot distribution circuit completes separating voice time slots from Ethernet data time slots and rebuilding the data, and the CPU interface circuit implements time slot distribution control. The method and the device can implement dynamic adjustment of Ethernet data bandwidth while ensuring voice services, to make effective use of trunk bandwidth and enhance user's data service bandwidth, without error code and interruption of data service during bandwidth adjustment.
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Office Actions issued by European Patent Office and Russian Patent Office for corresponding applications based on PCT/CN2003/001032.
Liu Qingliang
Liu Rong
Zhou Chang
Nguyen Brian D
Thomas Kayden Horstemeyer & Risley LLP
ZTE Corporation
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