CN115297073A - E1 service transmission method and device - Google Patents
E1 service transmission method and device Download PDFInfo
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- CN115297073A CN115297073A CN202210873409.9A CN202210873409A CN115297073A CN 115297073 A CN115297073 A CN 115297073A CN 202210873409 A CN202210873409 A CN 202210873409A CN 115297073 A CN115297073 A CN 115297073A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005538 encapsulation Methods 0.000 claims abstract description 10
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 230000006798 recombination Effects 0.000 claims description 2
- 238000005215 recombination Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004088 simulation Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/9057—Arrangements for supporting packet reassembly or resequencing
Abstract
The invention provides an E1 service transmission method and device. The E1 service transmission method comprises the following steps: slicing the data frame of the E1 service according to the preset byte number to obtain a data frame slice; recombining each data frame slice according to a preset format; and carrying out Ethernet encapsulation on the recombined data frame slices of a preset number. The invention slices the data frame of the E1 service by selecting the specific byte number and encapsulates each obtained data frame slice in a specific format, thereby realizing the beneficial effects of reducing the transmission delay of the E1 service and improving the bandwidth utilization rate.
Description
Technical Field
The present invention relates to the field of data processing, and in particular, to a method and an apparatus for transmitting an E1 service.
Background
With the rapid development of data services, 5G networks gradually become mainstream, but the traditional E1 services still need to be transmitted in the network.
In general, when the E1 service accesses the packet-switched network, a circuit emulation technique is used. The bandwidth of the E1 service after circuit simulation is about 2Mbps, a hard slicing technology is introduced into a 5G network, and the minimum granularity is 10Mbps. Therefore, when the E1 service enters the small-granule slice network, there is a problem of transmission efficiency, which is only about 20% of bandwidth utilization; meanwhile, the simulation processing delay of the E1 service itself is not consistent with the delay requirement in the 5G network, and a method for improving the E1 service delay and optimizing the transmission efficiency is needed.
Disclosure of Invention
In order to solve the above technical problem, the present invention provides an E1 service transmission method and apparatus.
In a first aspect, the present invention provides an E1 service transmission method, where the E1 service transmission method includes:
slicing the data frame of the E1 service according to the preset byte number to obtain data frame slices;
recombining each data frame slice according to a preset format;
and carrying out Ethernet encapsulation on the recombined data frame slices of the preset number.
Optionally, the preset number of bytes is 22 bytes.
Optionally, the step of reconstructing each data frame slice according to a preset format includes:
an overhead of 6 bits is added for each slice of data frames.
Optionally, the overhead of 6 bits includes:
2-bit synchronization code overhead, 2-bit E1 indication overhead, 1-bit adjustment indication overhead and 1-bit reservation overhead.
Optionally, the preset number is 4.
In a second aspect, the present invention further provides an E1 service transmission apparatus, where the E1 service transmission apparatus includes:
the slicing module is used for slicing the data frame of the E1 service according to the preset byte number to obtain data frame slices;
the recombination module is used for recombining each data frame slice according to a preset format;
and the packaging module is used for carrying out Ethernet packaging on the recombined data frame slices with the preset number.
Optionally, the preset number of bytes is 22 bytes.
Optionally, the reassembly module is configured to:
an overhead of 6 bits is added for each slice of data frames.
Optionally, the overhead of 6 bits includes:
a 2-bit synchronization code overhead, a 2-bit E1 indication overhead, a 1-bit adjustment indication overhead, and a 1-bit reservation overhead.
Optionally, the preset number is 4.
In the invention, a data frame of the E1 service is sliced according to a preset byte number to obtain a data frame slice; recombining each data frame slice according to a preset format; and carrying out Ethernet encapsulation on the recombined data frame slices of the preset number. The invention slices the data frame of the E1 service by selecting the specific byte number and packages each obtained data frame slice in a specific format, thereby realizing the beneficial effects of reducing the transmission delay of the E1 service and improving the bandwidth utilization rate.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of an E1 service transmission method according to the present invention;
fig. 2 is a schematic diagram of a format of a reassembled data frame slice in an embodiment of the E1 service transmission method according to the present invention;
fig. 3 is a schematic diagram illustrating ethernet encapsulation in an embodiment of the E1 service transmission method according to the present invention;
fig. 4 is a functional module diagram of an E1 service transmission apparatus according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
In a first aspect, an embodiment of the present invention provides an E1 service transmission method.
In an embodiment, referring to fig. 1, fig. 1 is a flowchart illustrating an embodiment of an E1 service transmission method according to the present invention. As shown in fig. 1, the E1 service transmission method includes:
s10, slicing the data frame of the E1 service according to a preset byte number to obtain data frame slices;
in this embodiment, 1E 1 service data frame has 32 bytes in total, slices with different byte numbers will affect the delay, and selecting appropriate slice words can balance the delay reduction and the reasonable packet length setting.
Specifically, when the preset byte number is 24 bytes, each code rate is adjusted to 2.12m,2.12m × 125us =265bit, that is, 256bit is adjusted to 265bit, one frame is provided every 199bit, the number of padding bits per frame is =199 × (265-256)/265 =6.75bit, the payload has 24 bytes and is 192bit, the frame frequency is 93.75us, and the required bandwidth is:
(8+2+2+100+4＝116)×8×10666＝9.89Mbps
9.89Mbps is less than 10.101Mbps (FGU rate).
Specifically, when the preset number of bytes is 23 bytes, the code rate of each path is adjusted to 2.12m,2.12m × 125us =265bit, that is, 256bit is adjusted to 265bit, one frame is provided every 191 bits, the number of padding bits is =191 × 265-256)/265 =6.48bit per frame, (note: 191=23 byte × 8bit, and the like later), the payload has 23 bytes and is 184 bits in total, the frame frequency is 89.84us, and the required bandwidth is:
(8+2+2+96+4＝112)×8×11130＝9.97Mbps
9.97Mbps less than 10.101Mbps (FGU rate)
(Note: 96= (23 + 1) bytes 8bit, similar later)
Specifically, when the preset number of bytes is 22 bytes, each code rate is adjusted to 2.12m,2.12m × 125us =265bit, that is, 256bit is adjusted to 265bit, one frame is provided every 183bit, the number of padding bits per frame is =183 × (265-256)/265 =6.2bit, the payload has 22 bytes and 176bit in total, the frame frequency is 85.93us, and the required bandwidth is:
(8+2+2+92+4＝108)×8×11637＝10.05Mbps
10.05Mbps is less than 10.101Mbps (FGU rate).
Specifically, when the preset number of bytes is 21 bytes, each code rate is adjusted to 2.12m,2.12m × 125us =265bit, that is, 256bit is adjusted to 265bit, one frame is provided every 174bit, the number of padding bits per frame is =174 × (265-256)/265 =5.9bit, the payload has 21 bytes and 168 bits in total, the frame frequency is 82.03us, and the required bandwidth is:
(8+2+2+88+4＝104)×8×12190＝10.142Mbps
10.142Mbps is greater than 10.101Mbps (FGU rate)
It can be seen that slicing the data frames of the E1 service by 22 bytes is the optimal way.
Further, in an embodiment, the preset number of bytes is 22 bytes.
In this embodiment, the data frame of the E1 service is sliced by 22 bytes.
The existing packet is cut according to 32 bytes, and the transmission delay of E1 service is 125us; in this embodiment, packets are cut by 22 bytes, and the transmission delay of E1 service is 86us. Therefore, the transmission delay of the E1 service can be effectively reduced through the embodiment.
S20, recombining each data frame slice according to a preset format;
in this embodiment, a frame reassembly format is preset, and after the data frame slices are obtained, each data frame slice can be reassembled according to the preset format.
Further, in an embodiment, the step S20 includes:
an overhead of 6 bits is added for each slice of data frames.
In this embodiment, the overhead of 6 bits is added to each data frame slice, which is determined according to actual needs.
Further, in an embodiment, the overhead of 6 bits includes:
a 2-bit synchronization code overhead, a 2-bit E1 indication overhead, a 1-bit adjustment indication overhead, and a 1-bit reservation overhead.
In this embodiment, referring to fig. 2, fig. 2 is a schematic diagram of a format of a data frame slice after being reassembled in an embodiment of the E1 service transmission method of the present invention. As shown in fig. 2, the reorganized slice of the data frame includes:
2bit of synchronization code overhead;
e1 of 2 bits indicates the overhead, and the specific value of the E1 indicates the overhead is 0-3;
1bit adjustment indicates overhead, and E1 indicates the specific value of the overhead to be 0 or 1;
and a 1-bit reservation overhead, which can be used to buffer the rate deviation of each E1 service due to its own frequency offset (within an allowable range) by adjusting the specific value of the reservation overhead; or without using reserved overhead, for buffering the rate offset of each E1 service due to its own frequency offset (within the allowed range) by displaying the corresponding value within the adjustment indication overhead.
And step S30, carrying out Ethernet encapsulation on the recombined data frame slices of the preset number.
In this embodiment, the preset number is set according to time requirements, so that the finally obtained ethernet frames can be transmitted in a switching network, and the overall packet length can be reasonably controlled, thereby realizing the maximum bandwidth utilization rate. Referring to fig. 3, fig. 3 is a schematic diagram illustrating ethernet encapsulation performed in an embodiment of the E1 service transmission method of the present invention. As shown in fig. 3, an ethernet synchronization header field, an ethernet type field, and a PW label field (a physical link (optical fiber) may create a plurality of tunnels, a plurality of PWs may be created in one tunnel, and a PW label is used to distinguish each PW in the same tunnel) are added before a preset number of slices of the reassembled data frame, and a PCS field is added after a preset number of slices of the reassembled data frame to identify a specific value of the preset number.
Further, in an embodiment, the predetermined number is 4.
In this embodiment, ethernet encapsulation is performed on 4 recombined data frame slices, that is, every 4 recombined data frame slices are encapsulated into an ethernet frame, which can increase the bandwidth utilization to about 80%.
In the embodiment, the data frame of the E1 service is sliced according to the preset number of bytes to obtain data frame slices; recombining each data frame slice according to a preset format; and carrying out Ethernet encapsulation on the recombined data frame slices of the preset number. In this embodiment, the data frame of the E1 service is sliced by selecting a specific number of bytes, and each obtained slice of the data frame is encapsulated in a specific format, so that the beneficial effects of reducing the transmission delay of the E1 service and improving the bandwidth utilization rate are achieved.
In a second aspect, an embodiment of the present invention further provides an E1 service transmission apparatus.
In an embodiment, referring to fig. 4, fig. 4 is a functional module schematic diagram of an embodiment of an E1 service transmission apparatus of the present invention. As shown in fig. 4, the E1 service transmission apparatus includes:
the slicing module 10 is configured to slice the data frame of the E1 service according to a preset number of bytes to obtain a data frame slice;
a reorganization module 20, configured to reorganize each data frame slice according to a preset format;
and the encapsulating module 30 is configured to perform ethernet encapsulation on a preset number of the recombined data frame slices.
Further, in an embodiment, the preset number of bytes is 22 bytes.
Further, in an embodiment, the restructuring module 20 is configured to:
an overhead of 6 bits is added for each slice of data frames.
Further, in an embodiment, the overhead of 6 bits includes:
a 2-bit synchronization code overhead, a 2-bit E1 indication overhead, a 1-bit adjustment indication overhead, and a 1-bit reservation overhead.
Further, in an embodiment, the preset number is 4.
The function implementation of each module in the E1 service transmission apparatus corresponds to each step in the embodiment of the E1 service transmission method, and the function and implementation process thereof are not described in detail here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing a terminal device to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An E1 service transmission method, wherein the E1 service transmission method includes:
slicing the data frame of the E1 service according to the preset byte number to obtain data frame slices;
recombining each data frame slice according to a preset format;
and carrying out Ethernet encapsulation on the recombined data frame slices of the preset number.
2. The E1 service transmission method according to claim 1, wherein the preset number of bytes is 22 bytes.
3. The E1 service transmission method of claim 1, wherein the step of reassembling each data frame slice according to a preset format comprises:
an overhead of 6 bits is added for each slice of data frames.
4. The E1 service transmission method of claim 3, wherein the 6-bit overhead comprises:
a 2-bit synchronization code overhead, a 2-bit E1 indication overhead, a 1-bit adjustment indication overhead, and a 1-bit reservation overhead.
5. The E1 service transmission method according to claim 1, wherein the preset number is 4.
6. An E1 service transmission apparatus, wherein the E1 service transmission apparatus comprises:
the slicing module is used for slicing the data frame of the E1 service according to the preset byte number to obtain data frame slices;
the recombination module is used for recombining each data frame slice according to a preset format;
and the packaging module is used for carrying out Ethernet packaging on the recombined data frame slices with the preset number.
7. The E1 traffic transmitting device as claimed in claim 6, wherein the predetermined number of bytes is 22 bytes.
8. The apparatus for E1 traffic transmission according to claim 6, wherein the reassembly module is configured to:
an overhead of 6 bits is added for each slice of data frames.
9. The apparatus for E1 traffic transmission according to claim 6, wherein the 6-bit overhead comprises:
2-bit synchronization code overhead, 2-bit E1 indication overhead, 1-bit adjustment indication overhead and 1-bit reservation overhead.
10. The E1 traffic transmitting device of claim 6, wherein the preset number is 4.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795605A (en) * | 2014-01-14 | 2014-05-14 | 烽火通信科技股份有限公司 | Method and system for converting OTN signals into Ethernet payloads |
| CN105634647A (en) * | 2016-01-07 | 2016-06-01 | 烽火通信科技股份有限公司 | Method and system for realizing forward compatibility of MSTP (Multi-Service Transfer Platform) equipment to PTN (Packet Transport Network) equipment platform |
| CN106961390A (en) * | 2016-01-08 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of method and device of E1 structurings slot compressed mode packet transmission |
| CN108880733A (en) * | 2018-05-30 | 2018-11-23 | 烽火通信科技股份有限公司 | The method and device of low speed TDM business transmission is realized on unified load bearing equipment |
| WO2021115452A1 (en) * | 2019-12-12 | 2021-06-17 | 中兴通讯股份有限公司 | Flexible ethernet overhead multiframe receiving method, apparatus, device, and medium |
| EP3968586A1 (en) * | 2019-07-09 | 2022-03-16 | ZTE Corporation | Packet processing method and related apparatus |
-
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- 2022-07-22 CN CN202210873409.9A patent/CN115297073B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795605A (en) * | 2014-01-14 | 2014-05-14 | 烽火通信科技股份有限公司 | Method and system for converting OTN signals into Ethernet payloads |
| CN105634647A (en) * | 2016-01-07 | 2016-06-01 | 烽火通信科技股份有限公司 | Method and system for realizing forward compatibility of MSTP (Multi-Service Transfer Platform) equipment to PTN (Packet Transport Network) equipment platform |
| CN106961390A (en) * | 2016-01-08 | 2017-07-18 | 中兴通讯股份有限公司 | A kind of method and device of E1 structurings slot compressed mode packet transmission |
| CN108880733A (en) * | 2018-05-30 | 2018-11-23 | 烽火通信科技股份有限公司 | The method and device of low speed TDM business transmission is realized on unified load bearing equipment |
| EP3968586A1 (en) * | 2019-07-09 | 2022-03-16 | ZTE Corporation | Packet processing method and related apparatus |
| WO2021115452A1 (en) * | 2019-12-12 | 2021-06-17 | 中兴通讯股份有限公司 | Flexible ethernet overhead multiframe receiving method, apparatus, device, and medium |
Non-Patent Citations (2)
| Title |
|---|
| CHUNYANG: "E1成/解帧器的设计", pages 2, Retrieved from the Internet <URL:https://www.dzsc.com/data/2009-11-30/80497.html> * |
| 杨雪等: "分组传送网对E1业务的承载性能研究", 电力信息与通信技术, vol. 14, no. 7, pages 132 - 137 * |
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