Device and method for display and reverse display in optical transport network

FIELD: information technologies.

SUBSTANCE: in the method a unit of optical channel data transfer is built according to number of time slots of a higher order optical channel payload unit (HO OPU), identified for a unit of lower order optical channel data unit (LO ODU); LO ODU is displayed into a payload area of ODTU with M-byte granularity; information of service load is encapsulated into a payload area of ODTU; and ODTU is multiplexed, produced by display of LO ODU and encapsulation of service load information, into HO OPU, to ensure highly efficient and universal mode to display LO ODU into HO OPU.

EFFECT: expansion of application field due to provision of display for various speeds of transfer of lower order optical channel data units.

15 cl, 12 dwg

 

The technical field

The present invention relates to the field of communications technologies, and in particular, to techniques for the display in the optical transport network.

The level of technology

With the rapid development of communication technology optical transport network (OTN), by taking advantage of flexible scheduling and administration of a large capacity, becomes the dominant technology of the backbone transport network. In OTN client data is encapsulated in a unit of payload optical channel (OPU), some utility load (HE) is added to the OPU with the formation of unit optical data channel (ODU), HE and some direct code error correction (FEC) is added to the ODU with the formation of the transport unit optical channel (OTU), and, finally, transmitted in the form of OTU.

With the rapid development of data services, more and more customers adopt Ethernet as a physical interface on the client side. We can predict that in the coming years service Ethernet will develop as rapidly. However, modern technology OTN built on the basis of voice services, such as synchronous digital hierarchy (SDH), and may not fully support such a development data services such as Ethernet, and therefore research with the aim of building a network OTN new pollen is I (NG OTN). NG OTN must not only meet the requirements of new services, but also be backward compatible with modern OTN. Thus, how to display the data unit of an optical channel of a lower order (LO ODU) in a data unit of an optical channel of a higher order (BUT ODU) is a key issue in the development of this industry. LO ODU can be a Protection (k=0, 1, 2, 2e, 3, 3F), existing in modern OTN and presented here as Protection LO (k=0, 1, 2, 2e, 3, 3F); BUT ODU can be considered as a unit of data transfer at a higher speed, which belongs to the category of NG OTN and is used to transfer the LO ODU, and the corresponding OPU represented as BUT OPUk (k=1, 2, 3, 3E, 4).

Traditional technical solution provides for the display of standard ODUj (j=1, 2) (for the valid bit error 20 ppm) in the OPUk (k=2, 3) in asynchronous mode. Asynchronous mode provides for mapping ODUj signal in the OPUk according to the policy of regulation-1/0/+1/+2. In asynchronous mode, the maximum allowable bit error between the ODU1 and OPU2 is from -113 to +83 ppm, the maximum allowable bit error between the ODU1 and OPU3 is from -96 to +101 ppm, and the maximum allowable bit error between ODU2 and OPU3 is from -95 to +101 ppm.

In the process of implementation of the present invention, the inventor found the following problems inherent in the prior art:

<> The method is not suitable for mapping the LO ODU in BUT ODU, for example, ODU2e (valid bit error 100 ppm), etc. Acceptable bit error oduflex support or above can take place in the future, and regulatory policy-1/0/+1/+2, corresponding to the prior art, does not meet the requirements of mapping the LO ODU in BUT ODU.

The invention

Embodiments of the present invention provide a method and apparatus for mapping and reverse mapping in OTN, for example, for universal and effective mapping the LO ODU in BUT ODU.

Embodiments of the present invention provide a display method in OTN, comprising the steps are:

build ODTU according to the number M of time slots BUT OPU allocated for LO ODU;

show LO ODU in the area of the ODTU payload with the M-byte granularity of the display method in the framework of the General procedure display (GMP); encapsulate information service load in the area of service load ODTU; and

multiplexer ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

Embodiments of the present invention provide a return path display in OTN, comprising the steps are:

analyze OPU BUT to determine ODTU and the number M of time slots allocated to ODTU; and

perform the inverse is th mapping the LO ODU from the area ODTU payload with M-byte granularity.

Embodiments of the present invention additionally provide a display device in OTN, including:

the construction module, able to build ODTU according to the number M of time slots BUT OPU allocated for LO ODU;

the display unit capable of displaying LO ODU in the area of the ODTU payload with the M-byte granularity of the display method in the framework of the General procedure display (GMP);

the unit of encapsulation that can encapsulate information service load in the area of service load ODTU; and

block multiplexing, capable of multiplexing ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

Embodiments of the present invention additionally provide for the back of the device display in the OTN, which includes: the unit of analysis is able to analyze BUT OPU to determine ODTU and the number M of time slots allocated to ODTU; and block reverse display, capable of performing inverse mapping the LO ODU from the area ODTU payload with M-byte granularity.

Technical solutions of embodiments of the present invention provide the following benefits: ensuring efficient and versatile mode to display the LO ODU BUT in OPU.

Brief description of drawings

For b the more detailed description of the technical solutions of embodiments of the present invention the drawings, required for describing the embodiments are briefly listed below. Obviously, the following drawings are only some embodiments of the present invention, and a specialist in the art can create other drawings based on these drawings, without departing from the scope of the present invention.

Figure 1 is a logical block diagram of a display method in an OTN according to a variant implementation of the present invention.

2 is a block diagram showing the division BUT OPU eight time slots of 1.25 G according to a variant implementation of the present invention.

Figure 3 is a diagram illustrating a display mode according to a variant implementation of the present invention.

4 is a diagram showing another display mode according to a variant implementation of the present invention.

5 is a diagram showing the mapping from the LO ODU in BUT OPU2 according to a variant implementation of the present invention.

6 is a diagram showing another display of LO ODU in BUT OPU2 according to a variant implementation of the present invention.

7 is a diagram illustrating another display of LO ODU in BUT OPU2 according to a variant implementation of the present invention.

Fig diagram showing information coding "SM-base+C8M-delta+C8-delta" according to a variant implementation of the crust is asego of the invention.

Figure 9 is a logical block diagram of the method of the inverse mappings in the OTN according to a variant implementation of the present invention.

Figure 10 is a display device in an OTN according to a variant implementation of the present invention.

11 is a display device in an OTN according to another variant implementation of the present invention.

Fig - the back of the device display in the OTN according to a variant implementation of the present invention.

Detailed description of embodiments

Technical solutions of embodiments of the present invention are described in detail below with reference to drawings showing embodiments of. It is obvious that the described embodiments of are only a part of embodiments of the present invention, not all of his options for implementation. On the basis of embodiments of the present invention a specialist in this field of technology can offer other ways to exercise without going beyond the scope of the present invention.

On the side of the transmission data, according to figure 1, the display method in an OTN according to a variant implementation of the present invention includes the steps are:

build ODTU according to the number M of time slots BUT OPU allocated LO ODU;

show LO ODU in the area of the ODTU payload with M-byte granular is thew;

encapsulate information service load in the area of the ODTU payload; and

multiplexer ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU, to ensure the effective and universal mode for mapping the LO ODU BUT in OPU.

For a better understanding of embodiments of the present invention are described in detail below, the implementation processes of these embodiments in specific applications.

The display method in the OTN according to a variant implementation of the present invention includes the steps are:

S1: build ODTU according to the number M of time slots BUT OPU allocated for LO ODU;

Step includes a step in which:

S11: determine the number M of time slots BUT OPU allocated for LO ODU;

In particular, the number M of time slots BUT OPU allocated for LO ODU, can be defined according to the speed LO ODU and the speed of a single time slot BUT OPU, i.e. M=round (speed LO ODU/speed single time slot BUT OPU). For example, BUT OPU2 is divided into eight time slots of 1.25 G, and eight frames BUT OPU2 forms a large multi-shot, according to figure 2. If the speed of a certain LO ODU equal to 6 G, then there must be occupied by five time slots, and M is 5. We can distinguish five time slots of the current LO ODU according to legend the pits using time slots in BUT OPU, in this case, it is assumed that five time slots allocated to the current LO ODU, are the time slots 2, 3, 5, 7, and 8.

Of course, you can suggest other ways to determine M and the allocation of time slots. However, they are not limited to variants of implementation of the present invention, and correspond to the scope of protection of embodiments of the present invention.

S12: the construction of the ODTU;

ODTU includes M time slots and additionally includes a utility load levelling control (JC), corresponding to the position of JC BUT HE OPU. According to figure 2 ODTU includes the time slots 2, 3, 5, 7 and 8 in multicare formed by eight BUT OPU, and additionally includes position JC HE frames BUT OPU, which correspond to respective time slots. Shaded position in figure 2 form the corresponding ODTU.

S2: show LO ODU in the area of the ODTU payload with M-byte granularity;

Step includes a step in which:

S21: determine the volume of the LO ODU that is a multiple of M bytes to be displayed when displaying the M-byte granularity, according to the quantity X LO ODU to be transmitted during each period of multicade, in this case represented as SM; in another embodiment, the present invention determines the timing information according to Koli is estu X LO ODU, to be transmitted during each period of multicade, in this case represented as C8-delta. These two types of information are expressed as "SM+C8-delta".

The method of finding X is known and therefore not described in embodiments implementing the present invention.

In particular, according to a variant implementation of the present invention, it is possible to use the following method definition "C8M+C8-delta":

C8M,MAX=(speed LO ODU*maximum frequency deviation LO ODU)/(M*speed TS*minimum frequency deviation TS)*15232

C8M,MIN=(speed LO ODU*minimum frequency deviation LO ODU)/(M*speed TS*maximum frequency deviation TS)*15232.

Here SM is an integer in the range [C8M,MIN rounding down, SM,MACH rounding]. C8-delta is equal to X-M*SM and specifies timing information, where X is equal to C8, and C8 is an integer in the range [C8,MIN rounding down, C8,MACH rounding].

C8,MAX=(speed LO ODU*maximum frequency deviation LO ODU)/(speed TS*minimum frequency deviation TS)*15232

C8,MIN=(speed LO ODU*minimum frequency deviation LO ODU)/(speed TS*maximum frequency deviation TS)*15232.

Assuming for the LO ODU X=76111, and that it takes M=5 time slots received SM=(X/M) round down=15222, C8-delta=X-M*C8M=1. Otherwise, SM=(X/M) rounded down+1=15223, C8-delta=X-M*C8M=-4. the information displayed data and information synchronization can be completely reflected by the information transmission "C8M+C8-delta", ie (15222, 1) or (15223, -4). The receiving party may feel, according to (15222, 1) or (15223, -4)that the losing party should transmit client data 76111 bytes within one period of multicade for exact recovery client synchronization on the receiving side.

According to the present invention it is also possible to use other methods for determining "C8M+C8-delta". However, they are not limited to variants of implementation of the present invention, and correspond to the scope of protection of the above embodiments.

S22: displays the amount of LO ODU that is a multiple of M bytes, in the area of the ODTU payload with M-byte granularity.

Display with M-byte granularity means that every time the operation display is carried out on a group of M bytes of client data; according to the above example displays the size of LO ODU that is a multiple of M bytes, in the area of the ODTU payload with M-byte granularity means displaying 15222 or 15223 LO ODU 5 bytes in the region ODTU payload, with the implementation of the operation display for each 5 byte LO ODU, and the entire display is performed 15222 or 15223 time.

In particular, the algorithm of the Sigma-Delta or other ways to display within the General procedure display (GMP) can be used to display the LO ODU in the area of the ODTU payload, and the other way the display GMP meet the following requirements:

1. the ability to automatically determine the amount of fill according to the displayed signals and speed of the target container;

2. the ability to automatically determine the distribution of the positions of the signals populate and display in the target container according to the displayed signals and speed of the target container; and

3. transportation information items, the carrier signals populate and display, in the service load of the target container.

Information requirements for the display method according to GMP variants of implementation of the present invention is additionally described with reference to the following two display modes, but is not limited to these two display modes.

Display mode 1: uniform distribution of data and filling data signal display area of the payload according to the algorithm of the Sigma-Delta. Information such as position signals populate and display, is transferred and transported in the service load of the target container;

the resulting display is shown in figure 3, where S is the data fill, and D - signal data display, and data fill data signal display evenly distributed in the area of payload.

Mode 2: the concentrated placement of padding data in a fixed position pane helpful the second load, and determining which areas in the field of payload designed to fill-in data, and what areas in the field of the payload intended for the data signal of the display, according to the volume of fill. Information such as position signals populate and display, is transferred and transported in the service load of the target container;

the resulting display is shown in figure 4, where S is the data fill, and the D - data signal display.

S3: encapsulate information service load in the area of service load ODTU;

According to a variant implementation of the present invention, the information service load includes information volume of the LO ODU that is a multiple of M bytes, and the step of encapsulating information service load in the area of service load ODTU:

encapsulate the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU;

in particular, at the stage of encapsulation of data volume LO ODU that is a multiple of M bytes, in the area of service load ODTU

directly encapsulate the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU, and you can use the form "SM"; or

divide the volume information of the LO ODU that is a multiple of M bytes, on a fixed part of the information volume of the LO ODU that is a multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes, and incaps leraut a fixed part of the information volume of the LO ODU, multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU;

transportation in the form of this information service load can also achieve the same effect.

In particular, you can use the form "C8M-base+C8M-delta", where C8M-base+C8M-delta equivalent SM, specifies the number of groups of M bytes in the LO ODU displayed in the area of the ODTU payload; C8M-base is the number of groups of M bytes in the fixed part, and C8M-delta is the number of groups of M bytes in the variable part; and

determine the volume information of the LO ODU that is a multiple of M bytes to be filled, according to the volume of the LO ODU that is a multiple of M bytes, and encapsulate the information volume of the LO ODU that is a multiple of M bytes to be filled, in the area of service load ODTU; transportation in the form of this information service load can also achieve the same effect; in particular, you can use the form "S8M, where S represents the data fill, S8M specifies the number of filled bytes in ODTU after mapping the LO ODU in ODTU, and S8M=15232-C8M.

In another embodiment of the invention, the information service load includes information volume of the LO ODU that is a multiple of M bytes, and timing information,

at the stage of encapsulation information service load in the area of the ODTU payload:

encapsulate inform the tion of the volume of LO ODU, multiple of M bytes, and timing information in the area of service load ODTU.

In particular, at the stage of encapsulation of data volume LO ODU that is a multiple of M bytes, and the synchronization information in the area of service load ODTU:

directly encapsulate the information volume of the LO ODU that is a multiple of M bytes, and timing information in the area of service load ODTU, and you can use the form "SM+C8-delta"; or

divide the volume information of the LO ODU that is a multiple of M bytes, on a fixed part of the information volume of the LO ODU that is a multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes, and encapsulate a fixed part of the information volume of the LO ODU that is a multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU;

transportation in the form of this information service load can also achieve the same effect; in particular, you can use the form "C8M-base+C8M-delta+C8-delta", where the sum of the C8M-base+C8M-delta equivalent SM, specifies the number of groups of M bytes in the LO ODU displayed in the area of the ODTU payload; SM-base is the number of groups of M bytes in the fixed part, and C8M-delta is the number of groups of M bytes in the variable part;

or

determine the volume information of the LO ODU that is a multiple of M bytes to be filled, according to the volume of the LO ODU that is a multiple of M bytes, and encapsulate and the formation volume of the LO ODU, multiple of M bytes to be filled, in the area of service load ODTU; transportation in the form of this information service load can also achieve the same effect; in particular, you can use the form "S8M+S8-delta", where S represents the data fill, S8M specifies the number of filled bytes in ODTU after mapping the LO ODU in ODTU, S8M=15232-C8M, and S8-delta specifies timing information.

At the stage of encapsulation information service load in the area of service load ODTU:

encapsulate information service load service load corresponding to the first time slot or the last time slot in ODTU.

Information service load specifies timing information and the amount of LO ODU that is a multiple of M bytes, displayed in the ODTU in the following n multiquadric, or specifies timing information and the amount of LO ODU that is a multiple of M bytes, displayed in the ODTU in the next n frames, where n is a natural number.

According to a variant implementation of the present invention information "SM+C8-delta" specifies the terms of the synchronization information and the number of groups of M bytes in the LO ODU displayed in the ODTU in the following multicare.

If the information is "C8M+C8-delta" is encapsulated in JC IT appropriate the first time slot in ODTU, i.e. the position of JC IT for the 2nd frame BUT OPU corresponding to the time slot 2 in the current multicad is e, the mapping is performed according to figure 5. If the information is "C8M+C8-delta" is encapsulated in JC IT that corresponds to the last time slot in ODTU, i.e. the position of JC IT for the 8th frame BUT OPU corresponding to the time slot 8 in the current multicare, the display is carried out according to Fig.6.

According to another variant embodiment of the invention information "C8M-base+C8M-delta+C8-delta" specifies the terms of the synchronization information and the number of groups of M bytes in the LO ODU displayed in the ODTU in the next shot, BUT OPU.

Considering as an example BUT OPU2, according to a variant implementation presented on Fig.7, encapsulation "C8M-base+C8M-delta+C8-delta" is in the position of JC IT for 2 nd, 3 rd, 5 th, 7 th and 8-th frame BUT OPU2 corresponding to time slots 2, 3, 5, 7 and 8 in the current multicare, respectively. Information "C8M-base+C8M-delta+C8-delta" in the 2nd, 3rd, 5th, 7th and 8th frames BUT OPU2 is timing information and the number of groups of M bytes in the LO ODU displayed in the area of the ODTU payload in the next shot, BUT OPU2, respectively. The number of groups of M bytes in the LO ODU displayed in the area of the ODTU payload in other frames BUT OPU2 is C8M-base; that specifies the display C8M-base+C8M-delta M-byte data LO ODU with M-byte granularity in the area of the ODTU payload in the 3rd, 4th, 6th and 8th frames BUT OPU current multicade and in the area of the useful load the ODTU in the 1st frame BUT OPU next multicade. Displaying C8M-base M-byte data LO ODU with M-byte granularity in the area of the ODTU payload in the 2nd, 5th and 7th frames BUT OPU.

According to a variant implementation of the present invention information "C8M-base+C8M-delta+C8-delta" can be encapsulated in the following modes are shown Fig, but this is optional.

In this case C8M-base is 13 bits, C8M-delta occupies 3 bits, C8-delta occupies 8 bits, and the FEC is 8 bits; here, the function added error correction FEC, and the encoding mode VSN (16, 12) can be used to achieve the effect of correction of error in 1 bit, and increase the accuracy of the information "C8M-base+C8M-delta+C8-delta" during transportation. In addition, the FEC may also be replaced with CRC, and reliability of the information "C8M-base+C8M-delta+C8-delta", adopted at the receiving side, is guaranteed by checking the CRC.

S4: multiplexer ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

The display method in the OTN according to a variant implementation of the present invention not only provides a highly efficient and versatile mode for mapping the LO ODU BUT in OPU, compatible with the processes of mapping the LO ODU in OPU BUT with different degrees of granularity for ease of interconnection, but also allows you to separate the information data from the information synchronization for a display with a large granularity and transfers the information to sync with byte granularity to solve low characteristics synchronization restored on the receiving side due to displaying only with great granularity.

Accordingly, the receive-side data, according to Fig.9, a variant of implementation of the present invention additionally provides a method of reverse mappings in the OTN, for analysis BUT OPU to determine ODTU and the number M of time slots allocated to ODTU; and perform a reverse mapping the LO ODU from the area ODTU payload with M-byte granularity.

Inverse mapping the LO ODU from the area ODTU payload with M-byte granularity includes the steps are:

get information volume of the LO ODU that is a multiple of M bytes, of the service load ODTU; and

perform inverse mapping volume LO ODU that is a multiple of M bytes from the payload ODTU with M-byte granularity.

Return display volume LO ODU that is a multiple of M bytes from the payload ODTU with M-byte granularity additionally includes the steps are:

receive timing information from the service load ODTU, and restore the clock client services according to the synchronization information.

According to figure 10 variant implementation of the present invention additionally provides a display device in OTN, including:

the construction module, able to build ODTU according the kolichestvo M time slots BUT OPU, allocated LO ODU;

the display unit capable of displaying LO ODU in the area of the ODTU payload with M-byte granularity; the unit of encapsulation that can encapsulate information service load in the area of the ODTU payload; and

block multiplexing, capable of multiplexing ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

According to 11 another variant implementation of the present invention provides a display device in OTN, which includes the construction module, the display unit, the unit of encapsulation and multiplexing unit according to figure 10, where the display unit includes:

the determining module capable of determining the amount of LO ODU that is a multiple of M bytes to be displayed when displaying the M-byte granularity, according to the quantity X LO ODU to be transmitted during each period of multicade;

a display module capable of displaying the amount of LO ODU that is a multiple of M bytes, in the area of the ODTU payload with M-byte granularity; and

the unit of encapsulation is able to encapsulate the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU.

In another embodiment of the present invention the determining module is additionally designed to determine the information synchronization is according to the quantity X LO ODU, to be transmitted during each period of multicade; and

the unit of encapsulation is additionally able to encapsulate timing information in the area of service load ODTU.

According Fig variant implementation of the present invention additionally provides for the back of the device display in OTN, including:

the unit of analysis is able to analyze BUT OPU to determine ODTU and the number M of time slots allocated to ODTU; and

block reverse display, capable of performing inverse mapping the LO ODU from the area ODTU payload with M-byte granularity.

Detailed information about the signal processing and the operation of the components of the above devices is based on embodiments of the method of the present invention, see the description of embodiments of the method of the present invention, and is not shown here.

The above is a description of some illustrative embodiments of the present invention, are not intended to limit the scope of protection of the present invention. Any modifications and substitutions that can offer the specialist in the art within the technical scope set forth by this invention should be covered by the scope of protection of the present invention. Thus, the scope of protection of this is bretania determined by the claims.

1. The display method in an optical transport network (OTN), comprising stages on which to build a unit of data transmission optical channel (ODTU) according to the number M of time slots of the unit payload optical channel of a higher order (BUT OPU)to be allocated for the data unit of an optical channel of the lower order (LO ODU), show LO ODU in the area of the ODTU payload with the M-byte granularity of the display method in the framework of the General procedure display (GMP), encapsulate information service load in the area of service load ODTU and multiplexers ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

2. The method according to claim 1, in which at the stage of mapping the LO ODU way of displaying GMP in the area of the ODTU payload with M-byte granularity: determine the volume of the LO ODU that is a multiple of M bytes to be displayed when displaying the M-byte granularity, according to the quantity X LO ODU to be transmitted during each period of multicare and display the amount of LO ODU that is a multiple of M bytes, in the area of the ODTU payload with M-byte granularity.

3. The method according to claim 2, in which the information service load contains information volume of the LO ODU that is a multiple of M bytes, at the stage of encapsulating information service load in the area of service load ODTU;
encapsulate info is the information volume of the LO ODU, multiple of M bytes, in the area of service load ODTU.

4. The method according to claim 2, additionally containing phases in which
determine timing information according to the quantity X LO ODU to be transmitted during each period of multicade,
moreover, the information service load contains information volume of the LO ODU that is a multiple of M bytes, and timing information,
at the stage of encapsulating information service load in the area of service load ODTU encapsulate the information volume of the LO ODU that is a multiple of M bytes, and timing information in the area of service load ODTU.

5. The method according to claim 3 or 4, in which the step of encapsulating the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU directly encapsulate the information volume of the LO ODU that is a multiple of M bytes, in the area of service load ODTU or share the information volume of the LO ODU that is a multiple of M bytes, on a fixed part of the information volume of the LO ODU that is a multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes, and encapsulate a fixed part of the information volume of the LO ODU that is a multiple of M bytes, and a variable part of the information volume of the LO ODU that is a multiple of M bytes in the area of service load ODTU or specify the information volume of the LO ODU that is a multiple of M bytes to be filled, according to the volume of the LO ODU that is a multiple of M bytes, and encapsulate information the volume of the LO ODU, multiple of M bytes to be filled, in the area of service load ODTU.

6. The method according to claim 1 or 3, or 4 in which the step of encapsulating information service load in the area of service load ODTU encapsulate information service load service load corresponding to the first time slot or the last time slot in ODTU.

7. The method according to claim 1 or 3, or 4, in which information service load specifies timing information and the amount of LO ODU that is a multiple of M bytes, displayed in the ODTU in the following n multiquadric, or specifies timing information and the amount of LO ODU that is a multiple of M bytes, displayed in the ODTU in the next n frames, where n is a natural number.

8. The method according to claim 1 or 2, in which the display method GMP meets the following requirements: the ability to automatically determine the amount of fill according to the displayed signals and speed of the target container;
the ability to automatically determine the distribution of the positions of the signals populate and display in the target container according to the displayed signals and speed of the target container; and transportation information items, the carrier signals populate and display, in the service load of the target container.

9. Way back display in the optical transport network (OTN), comprising stages, which analyze unit p. the useful load of an optical channel of a higher order (BUT OPU) to determine the unit of data transmission optical channel (ODTU) and the number M of time slots, allocated ODTU, and perform the inverse mapping data unit optical channel of the lower order (LO ODU) from the field ODTU payload with M-byte granularity.

10. The method according to claim 9, in which at the stage reverse mapping the LO ODU from the area ODTU payload with M-byte granularity receive the information volume of the LO ODU that is a multiple of M bytes, of the service load ODTU and perform the inverse mapping of the volume of the LO ODU that is a multiple of M bytes from the payload ODTU with M-byte granularity.

11. The method according to claim 10, in which at the stage reverse mapping the LO ODU from the area ODTU payload with M-byte granularity additionally receive timing information from the service load ODTU.

12. The display device in the optical transport network (OTN)that contains the module build made with the possibility of building units data transmission optical channel (ODTU) according to the number M of time slots of the unit payload optical channel of a higher order (BUT OPU)to be allocated for the data unit of an optical channel of the lower order (LO ODU), the display unit to display the LO ODU in the area of the ODTU payload with the M-byte granularity of the display method in the framework of the General procedure display (GMP), the unit of encapsulation that can encapsulate information service load in the sphere of the service load ODTU, and block multiplexing, capable of multiplexing ODTU obtained by mapping the LO ODU and encapsulation information service load, BUT OPU.

13. The device according to item 12, in which the display unit includes a determining module, configured to determine the amount of LO ODU that is a multiple of M bytes to be displayed when displaying the M-byte granularity, according to the quantity X LO ODU to be transmitted during each period of multicare, and a displaying module, configured to display the amount of LO ODU that is a multiple of M bytes, in the area of the ODTU payload with M-byte granularity, and the unit of encapsulation is configured to encapsulate the data volume LO ODU that is a multiple of M bytes, in the area of service load ODTU.

14. The device according to item 13, in which determining module is additionally able to determine timing information according to the quantity X LO ODU to be transmitted during each period of multicare, and
the unit of encapsulation is additionally able to encapsulate timing information in the area of service load ODTU.

15. The back of the device display in the optical transport network (OTN)that contains the unit of analysis, performed with analyzing unit payload optical channel of a higher order (BUT OPU) to determine what denizy data transmission optical channel (ODTU) and the number M of time slots, allocated ODTU, and block reverse display, configured to perform a reverse display units optical data channel of the lower order (LO ODU) from the field ODTU payload with M-byte granularity.



 

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FIELD: physics, communications.

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FIELD: silicon compounds technology.

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24 cl, 1 dwg, 1 tbl, 9 ex

FIELD: silicon compounds technology.

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24 cl, 1 dwg, 1 tbl, 9 ex

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15 cl, 12 dwg

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FIELD: physics, communications.

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7 dwg

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3 dwg, 1 tbl

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