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Method of using Ethernet channel to transmit service signal and communication device

A technology of business signals and communication equipment, applied in the field of communication, can solve problems such as low utilization rate of link resources, space in multiple computer rooms, and maintenance and management of multiple sets of personnel, so as to improve the utilization rate of link resources and reduce the number of devices Effect

Active Publication Date: 2016-08-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the metropolitan area network, business requirements are complex, and often multiple devices compete with each other and complement each other, resulting in multiple sets of parallel or parallel running multiple sets of equipment in the metropolitan area network, for example, there is even one set of SDH in one computer room. Equipment, a set of OTN equipment, a set of Ethernet switches or routers and other grouping equipment, correspondingly equipped with multiple links, but the resource utilization rate of equipment and links is not high, generally around 30% or even lower, multiple sets The equipment takes up a lot of space in the computer room, introduces a relatively large power consumption, and consumes multiple sets of personnel for maintenance and management, which has become a problem that needs to be considered and solved in the metropolitan area network

Method used

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  • Method of using Ethernet channel to transmit service signal and communication device
  • Method of using Ethernet channel to transmit service signal and communication device
  • Method of using Ethernet channel to transmit service signal and communication device

Examples

Experimental program
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Effect test

Embodiment 1

[0105] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0106] The 100GE Ethernet physical interface is divided into 20 physical coding sublayer logical lanes (PCS Lane). Each logical channel periodically contains an alignment marker (AlignmentMarker: AM) every 16384 64 / 66b code blocks. AM is used for the synchronization and alignment of all parallel physical coding sublayer logical channels to restore a single 100GE data stream. Therefore, its interface physical layer has a typical data frame periodic structure of 20 rows and 16384 columns. This periodic data frame structure of 20 rows and 16384 columns is equivalent to dividing 20 time slots.

[0107] The situation of 40GE is similar. It has four physical coding sublayer logical channels (PCS Lane), and its interface physical layer has a typical data frame periodic structure of 4 rows and 16384 columns, which is equivalent to dividing 4 time slots.

[0...

Embodiment 2

[0147] The following will introduce the situation that CPRI-10 is mixedly carried in the bit multiplexing time slot opened by the 100GE Ethernet link.

[0148] The frame synchronization header of CPRI-20 was originally 20 0x50 bytes. In order to cooperate with the use of 64 / 66b encoding, its adaptation sublayer uses the end of frame character / T / =0xFD and the start character of frame / S / =0xFB to replace The 20 0x50 bytes of the synchronization head are the 8th and 9th bytes (#Z.0.7, #Z.0.8), and on the MII interface, TXC=1 is indicated as a control character, and the character / S / appears 64 / 66b Encodes the first byte of the available block bandwidth. There are also three types of 4 / 66b coding blocks involved.

[0149] CPRI-10 can also adopt the same processing method as the frame synchronization header of CPRI-20. Originally, it is 10 0x50 bytes. In order to cooperate with it, it is also 8 / 10b encoded and replaced with the first and second bytes of 0xBC, 0x50 / C5 It i...

Embodiment 3

[0158] How the OTN data utilizes the multiplexing technology provided by the embodiment of the present invention will be described below.

[0159] The pre-coding information rate of the OTN OTU2 / ODU2 interface is higher than the pre-coding information rate of the 10GE Ethernet interface, and is also higher than the pre-coding information rate of a 10G bandwidth physical coding sublayer channel in 40GE, and the two 5G The total pre-coding information rate of the physical coding sublayer channel of the bandwidth is high. As a result, ODU2 or OTU2 cannot be multiplexed to a 10G bandwidth physical coding sublayer channel in the nominal rate of 40GE, nor can it be reused for transmission by the nominal rate of 10GE physical interface, which requires speed-up or other processing. In this embodiment, two physical coding sublayer channels in 40GE are used.

[0160] Table 9

[0161]

[0162] The OTU2 signal is a typical TDM signal. This embodiment describes sharing and ...

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Abstract

The embodiment of the invention provides a communication method and a device, which can bear multiple service signals to the same bearing area of the same Ethernet PCS channel. Thus, multiple service signals can share the Ethernet channel, the multiple service signals can share link resources and interface module resources, a basis is provided for device integration and fusion of a multi-technology system, the link resource utilization rate can be improved, and the device number, the occupancy, the power consumption, the maintenance cost and the like of a metropolitan area network are reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and communication equipment for transmitting service signals by using an Ethernet channel. Background technique [0002] With the development of communication technology, different systems such as synchronous digital system SDH, optical transport network OTN, common public radio interface CPRI, and Ethernet have emerged successively. In the metropolitan area network, the business requirements are complex, and often multiple devices compete with each other and complement each other, resulting in multiple sets of parallel or parallel running multiple sets of equipment in the metropolitan area network, for example, there is even one set of SDH in one computer room. Equipment, a set of OTN equipment, a set of Ethernet switches or routers and other grouping equipment, correspondingly equipped with multiple links, but the resource utilization rate of equipment and links...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/008H04L1/0086H04L1/00H04L1/0011H04L43/028H04L45/66H04L69/323
Inventor 钟其文
Owner HUAWEI TECH CO LTD