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Data transfer method and communication nodes

A communication node and node technology, applied in the field of communication, can solve the problems of allocating network bandwidth resources, reducing the utilization rate of network bandwidth resources, and the existence of time slot fragments in OPUCn signals, so as to avoid the existence of time slot fragments and improve the utilization of network bandwidth resources rate effect

Active Publication Date: 2014-01-22
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

The occupancy of various low-order services to the OPUCn time slot (Tributary Slot, TS) is arbitrary, so it will cause time slot fragments in the OPUCn signal, or, when some low-order services are withdrawn, it will also cause the presence of OPUCn signals Gap debris
The existence of these time slot fragments makes it impossible to allocate network bandwidth resources according to the actual requirements of low-order ODU services carried, thereby reducing the utilization of network bandwidth resources

Method used

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  • Data transfer method and communication nodes

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0053] figure 1 is a schematic diagram of an OTUCn signal frame structure according to an embodiment of the present invention.

[0054] Such as figure 1 As shown, the OTUCn signal frame structure is 4 rows and 4080×n columns. Among them, 1 row 1~7n column is the frame header indication overhead, 1 row 7n+1~14n column is the OTUCn overhead (Overhead, OH) area, 2~4 rows 1~14n column is the ODUCn overhead area, 1~4 row 14n+ Columns 1 to 16n are OPUCn overh...

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Abstract

The embodiment of the invention provides a data transfer method and communication nodes. The data transfer method comprises the following steps that a first node determines a second time slot corresponding to a first time slot in an optical channel payload unit-Cn (OPUCn) signal, wherein the second time slot is an idle time slot; the first node transfers first low-order optical channel data unit (ODU) service from the first time slot to the second time slot. According to the embodiment of the invention, by transferring the first low-order ODU service of the first time slot into the second idle time slot in the OPUCn signal, time slot fragments can be eliminated, so that the utilization rate of network bandwidth resources can be improved.

Description

technical field [0001] The present invention relates to the field of communication, and in particular, to a method of migrating data and a communication node. Background technique [0002] As the core technology of the next-generation transport network, Optical Transport Network (OTN) has rich capabilities of operation management and maintenance and powerful series connection monitoring, and can realize flexible scheduling and management of large-capacity services. [0003] OTN technology defines a standard frame structure to map various customer services. First, add the customer service to the Optical Channel Payload Unit (OPU) overhead to form an Optical Channel Payload Unit-k (Optical Channel Payload Unit-k, OPUk), then encapsulate the OPUk, and add the Optical Channel Data Unit (Optical Channel Payload Unit-k, OPUk). Channel Data Unit (ODU) overhead forms Optical Channel Data Unit k (Optical Channel Data Unit-k, ODUk), and then adds Optical Channel Transport Unit (Optic...

Claims

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Application Information

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IPC IPC(8): H04Q11/00
CPCH04J3/1652H04J2203/0069H04J2203/0091H04Q11/0066H04Q2011/0086
Inventor 苏伟吴秋游董立民
Owner HUAWEI TECH CO LTD
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