CN108959143A - A kind of Optical Transmission Network OTN equipment and method for processing business - Google Patents
A kind of Optical Transmission Network OTN equipment and method for processing business Download PDFInfo
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- CN108959143A CN108959143A CN201710363500.5A CN201710363500A CN108959143A CN 108959143 A CN108959143 A CN 108959143A CN 201710363500 A CN201710363500 A CN 201710363500A CN 108959143 A CN108959143 A CN 108959143A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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Abstract
The embodiment of the invention discloses a kind of Optical Transmission Network OTN equipment and method for processing business.Optical Transmission Network OTN (OTN) equipment in the embodiment of the present invention includes: multiple fifo queues (FIFO) module, and the FIFO being separately connected with each fifo module monitors adjustment module；FIFO monitors adjustment module, for monitoring the water level monitoring value of each fifo module in OTN equipment, sends water level regulation instruction to corresponding fifo module according to monitoring result；Fifo module, for carrying out water level regulation to this fifo module according to from the received water level regulation instruction of FIFO monitoring adjustment module.The embodiment of the present invention in the scene of wireless forward pass, extends to the performance requirement of symmetrical time delay in use OTN equipment carrying C-RAN network to realize when meeting CPRI interface business to low time delay, stabilization.
Description
Technical field
The present invention relates to, but not limited to Optical Transmission Network OTN (Optical Transport Network, referred to as are as follows: OTN) communications
Technical field, espespecially a kind of Optical Transmission Network OTN equipment and method for processing business.
Background technique
As radio communication service is in the 5th third-generation mobile communication technology (5th-Generation Mobile
Communication, referred to as are as follows: 5G) in development, OTN equipment carrying concentrate Radio Access Network (Central Radio
Access Network, referred to as are as follows: C-RAN) application demand it is more more and more intense.
OTN equipment carries the mode of C-RAN network service, carries for wireless forward pass (Fronthaul), i.e., in centralization base
The new network framework and remote radio unit (RRU) of tape controller (Building Baseband Unit, referred to as are as follows: BBU) composition
Connection between (Remote Radio Unit, referred to as are as follows: RRH), it is seen then that wireless forward pass is the networking for realizing distributed base station
One of model, that is, the element of C-RAN network.Traditional C-RAN network is by the way of fiber direct connection BBU and RRH, optical fiber
Bandwidth low (usually in 4G to 7G), transmission range is short；In order to meet, cordless communication network covering closeness is higher and data pass
Defeated faster demand, and meet the demands such as construction cost, power consumption and the maintenance cost for reducing C-RAN network, it proposes to use
OTN equipment replaces wireless forward pass in bearing optical fiber C-RAN network.In addition, OTN equipment carries the scheme of wireless forward pass, Ke Yirang
C-RAN network is more attractive, while also will certainly bring completely new chance for optic communication.
An important interface involved in the carrying of wireless forward pass, i.e. general radio interface (Common Public
Radio Interface, referred to as are as follows: CPRI), the CPRI interface be baseband controller (BBU) and remote radio unit (RRU) (RRU) it
Between an interface, the CPRI interface protocol to low time delay, stablize when extend to symmetrical time delay performance have very high requirement.Cause
This is extended to when how to improve CPRI interface business to low time delay, stabilization in the scene that use OTN equipment carries wireless forward pass
The problem of performance requirement of symmetrical time delay is current urgent need to resolve.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of Optical Transmission Network OTN equipment and business processing sides
Method, to realize in using OTN equipment carrying C-RAN network in the scene of wireless forward pass, meet CPRI interface business to it is low when
The performance requirement of symmetrical time delay is extended to when prolonging, stablizing.
In a first aspect, the embodiment of the present invention provides a kind of Optical Transmission Network OTN equipment, comprising: multiple fifo queue FIFO moulds
Block, and the FIFO being separately connected with each fifo module monitor adjustment module；
Wherein, FIFO monitors adjustment module, for monitoring the water level monitoring of each fifo module in the OTN equipment
Value sends water level regulation instruction to corresponding fifo module according to monitoring result；
The fifo module, it is right for being instructed according to from the received water level regulation of FIFO monitoring adjustment module
This fifo module carries out water level regulation.
In the first possible implementation of the first aspect, the fifo module include: status control unit and
Cell fifo；
The status control unit, the water level regulation instruction sent for receiving the FIFO monitoring adjustment module, and will
The water level regulation instruction is sent to the cell fifo；
The cell fifo is used for according to written request signal or reading request signal, and the water level regulation received
Instruction carries out water level regulation to this cell fifo.
According to the first possible implementation of first aspect, in the second possible implementation, the FIFO
Module further includes the first logic gate and the second logic gate, and the water level regulation instruction, which is used to indicate, adjusts direction and adjusting number,
The water level regulation instruction and the written request signal are connected to the input terminal of first logic gate, the water level regulation instruction
The input terminal of second logic gate, the output end of first logic gate and described second are connected to the reading request signal
The output end of logic gate is connected respectively to the cell fifo, and the written request signal and the reading request signal are connected respectively to
The status control unit；
The status control unit is also used to monitor adjusting mould to the FIFO after receiving the water level regulation instruction
Block issues governing response signal, and when receiving the written request signal, by the output end of first logic gate to
The cell fifo transmits the first water level regulation signal and passes through second logic gate when receiving the reading request signal
Output end to the cell fifo transmit the second water level regulation signal；
The cell fifo carries out water level regulation to this cell fifo, comprising:
Referred to according to the first water level regulation signal or the second water level regulation signal and the water level regulation
The instruction shown adjusts direction and adjusts number, adjusts corresponding number downward or upward to the water level of this cell fifo；
The status control unit is also used to cancel the governing response letter after the cell fifo completes water level regulation
Number.
In a third possible implementation of the first aspect, the FIFO monitoring adjustment module includes:
Measuring unit, the peak level value and most for the fifo module each in OTN equipment described in periodic measurement
Low water level value；
Monitoring unit, the peak level value of each fifo module and minimum water in the period for monitoring preset quantity
The difference of the difference of place value；
Unit is adjusted, the difference of the difference for the peak level value and lowest water level value in each fifo module is less than
Or when being equal to preset water level difference, water level regulation instruction is sent to corresponding fifo module.
According to the third possible implementation of first aspect, in the fourth possible implementation, the OTN is set
Default lowest water level value is provided in standby, the fifo module carries out water level regulation to this fifo module, comprising:
The peak level value, lowest water level value of this fifo module that adjustment module measures are monitored according to the FIFO, and
The default lowest water level value and water level regulation instruction, the lowest water level value of this fifo module is adjusted to described and is preset
Lowest water level value is equal.
According to the third or the 4th kind of possible implementation of first aspect, in a fifth possible implementation,
Default peak level value, the OTN equipment are provided in the OTN equipment further include: with the FIFO monitor adjustment module and
The delay compensation module that each fifo module is separately connected；
The delay compensation module, for being surveyed according to the default peak level value and FIFO monitoring adjustment module
The peak level value and lowest water level value of each fifo module obtained send the instruction of the first delay compensation to corresponding fifo module；
The fifo module, first delay compensation instruction for being also used to be sent according to the delay compensation module, will
The peak level value of this fifo module is adjusted to equal with the default peak level value.
According to the third or the 4th kind of possible implementation of first aspect, in a sixth possible implementation,
The OTN equipment further include: the time delay transfer module being connect with FIFO monitoring adjustment module, and monitored with the FIFO
The delay compensation module that adjustment module and each fifo module are separately connected, the time delay transfer module also with opposite end OTN
Equipment connection；
Time delay transfer module, it is each described in the OTN equipment that adjustment module measures for monitoring the FIFO
The peak level value of fifo module is sent to opposite end OTN equipment, and receives the opposite end OTN that the opposite end OTN equipment is sent
The peak level value of each fifo module in equipment；
The delay compensation module, for compare in the OTN equipment peak level value of each fifo module with
The peak level value that fifo module is corresponded in the opposite end OTN equipment sends the to corresponding fifo module according to comparing result
The instruction of two delay compensations；
The fifo module, second delay compensation instruction for being also used to be sent according to the delay compensation module, is adjusted
The peak level value of abridged edition fifo module is equal with the peak level value of the corresponding fifo module.
Second aspect, the embodiment of the present invention provide a kind of method for processing business, comprising:
Monitor the water level monitoring value of each fifo queue fifo module in OTN equipment；
According to the water level monitoring value of each fifo module, to the carry out water level regulation of corresponding fifo module.
In the first possible implementation of the second aspect, the water level monitoring according to each fifo module
Value, the carry out water level regulation of described pair of corresponding fifo module, comprising:
According to the water level monitoring value of each fifo module, water level regulation instruction is sent to corresponding fifo module；
The fifo module is according to written request signal or reading request signal, and the water level regulation instruction received,
Water level regulation is carried out to this fifo module.
According to the first possible implementation of the third aspect, in the second possible implementation, the water level
Regulating command, which is used to indicate, to be adjusted direction and adjusts number, before the fifo module carries out water level regulation to this fifo module,
The method also includes:
The fifo module issues governing response signal；
The fifo module carries out water level regulation to this fifo module, comprising:
The fifo module is when receiving the written request signal or the reading request signal, according to the water level regulation
Adjusting direction described in instruction and number is adjusted, corresponding number adjusted downward or upward to the water level of this fifo module, and
Cancel the governing response signal after completing water level regulation.
In the third possible implementation of the second aspect, each fifo queue in the monitoring OTN equipment
The water level monitoring value of fifo module, comprising:
The peak level value and lowest water level value of each fifo module in OTN equipment described in periodic measurement；
Monitor the difference of the difference of the peak level value and lowest water level value of each fifo module in the period of preset quantity
Value；
It is less than or equal to default water in the difference of the difference of the peak level value and lowest water level value of each fifo module
When potential difference value, the water level for adjusting corresponding fifo module is determined.
According to the third possible implementation of second aspect, in the fourth possible implementation, the OTN is set
Default lowest water level value, the carry out water level regulation of described pair of corresponding fifo module are provided in standby, comprising:
It, will be described according to the peak level value of the fifo module, lowest water level value and the default lowest water level value
The lowest water level value of fifo module is adjusted to equal with the default lowest water level value.
According to the third or the 4th kind of possible implementation of second aspect, in a fifth possible implementation,
Default peak level value is provided in the OTN equipment, the method also includes:
It, will be described according to the default peak level value and the peak level value and lowest water level value of the fifo module
The peak level value of fifo module is adjusted to equal with the default peak level value.
According to the third or the 4th kind of possible implementation of second aspect, in a sixth possible implementation,
The method also includes:
The peak level value of the fifo module each in the OTN equipment is sent to opposite end OTN equipment, and receives institute
State the peak level value of each fifo module in the opposite end OTN equipment of opposite end OTN equipment transmission；
It is corresponding with the opposite end OTN equipment to compare the peak level value of each fifo module in the OTN equipment
The peak level value of fifo module, according to comparing result adjust in the OTN equipment peak level value of fifo module with it is described
The peak level value of corresponding fifo module is equal.
Optical Transmission Network OTN equipment provided in an embodiment of the present invention and method for processing business monitor adjustment module monitoring by FIFO
The water level monitoring value of each fifo module being connect in OTN equipment with FIFO monitoring adjustment module, according to monitoring result to right
Fifo module is answered to send water level regulation instruction, then, fifo module can be according to received described from FIFO monitoring adjustment module
Water level regulation instruction, is adjusted the water level of this fifo module；In OTN equipment provided in an embodiment of the present invention, above-mentioned water level
Monitor value can reflect whether corresponding fifo module meets the condition for carrying out water level regulation, i.e. FIFO monitors adjustment module can be with
When the water level monitoring value of a certain fifo module meets default monitoring condition, indicate that the fifo module carries out water level regulation, with reality
Now in the scene using wireless forward pass in OTN equipment carrying C-RAN network, meet CPRI interface business to low time delay and stabilization
The performance requirement of time delay.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.
Fig. 1 is the schematic diagram for the application scenarios that OTN equipment carries CPRI business in C-RAN network；
Fig. 2 is a kind of structural schematic diagram of OTN equipment provided in an embodiment of the present invention；
Fig. 3 is a kind of operation principle schematic diagram of OTN equipment provided in an embodiment of the present invention；
Fig. 4 is the water level schematic diagram of fifo module in OTN equipment provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of fifo module in OTN equipment provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another kind OTN equipment provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another OTN equipment provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another OTN equipment provided in an embodiment of the present invention；
Fig. 9 is a kind of application scenarios schematic diagram that OTN equipment provided in an embodiment of the present invention carries CPRI interface business；
Figure 10 is the flow chart that water level regulation is carried out using OTN equipment provided in an embodiment of the present invention；
Figure 11 is a kind of flow chart of method for processing business provided in an embodiment of the present invention；
Figure 12 is the flow chart of another method for processing business provided in an embodiment of the present invention；
Figure 13 is the flow chart of another method for processing business provided in an embodiment of the present invention；
Figure 14 is the flow chart of another method for processing business provided in an embodiment of the present invention；
Figure 15 is the flow chart of another method for processing business provided in an embodiment of the present invention；
Figure 16 is a kind of flow chart for carrying out delay compensation in method for processing business provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
Step shown in the flowchart of the accompanying drawings can be in a computer system such as a set of computer executable instructions
It executes.Also, although logical order is shown in flow charts, and it in some cases, can be to be different from herein suitable
Sequence executes shown or described step.
Before describing OTN equipment provided in an embodiment of the present invention and method for processing business, first simply introduces OTN equipment and hold
The application scenarios of wireless forward pass in C-RAN network are carried, OTN equipment realizes the carrying to CPRI business, as shown in Figure 1, being C-RAN
The schematic diagram of the application scenarios of OTN equipment carrying CPRI business in network.In the network architecture of distributed base station, RRU and BBU
Separation, and is communicated by CPRI interface, and the business of CPRI interface is carried using OTN setting, can allow cordless communication network
Cover it is more dense, data transmit faster.
But CPRI interface business has very high requirement to delay performance, generally includes: low time delay, stablize time delay and
Symmetrical time delay etc..The bearing method of OTN equipment is difficult to meet the delay requirement of CPRI interface business in the prior art.Therefore, exist
In the scene for carrying wireless forward pass using OTN equipment, when extending to symmetrical when how to improve CPRI interface business to low time delay, stabilization
The problem of performance requirement prolonged is current urgent need to resolve.
Technical solution of the present invention is described in detail below by specific embodiment, the following embodiment of the present invention
In OTN equipment be used to carry wireless forward pass in C-RAN network, and carry the CPRI interface industry in wireless forward pass networking scene
Business.The present invention provides following specific embodiment and can be combined with each other, may for the same or similar concept or process
It is repeated no more in some embodiments.
Fig. 2 is a kind of structural schematic diagram of OTN equipment provided in an embodiment of the present invention.OTN equipment provided in this embodiment
In the case where suitable for carrying wireless forward pass C-RAN network, the OTN equipment hardware and software in conjunction with by way of come real
It is existing.As shown in Fig. 2, OTN equipment 10 provided in an embodiment of the present invention may include: multiple fifo queues (First Input
First Output, referred to as are as follows: FIFO) module 110, and the FIFO monitoring adjusting being separately connected with each fifo module 110
Module 120.
Wherein, FIFO monitors adjustment module 120, for monitoring the water level monitoring of each fifo module 110 in OTN equipment 10
Value sends water level regulation instruction to corresponding fifo module 110 according to monitoring result.
OTN equipment provided in an embodiment of the present invention, for the equipment for carrying the wireless forward pass in C-RAN network, this is set
The standby business that can be carried in C-RAN network, such as the business of OTN equipment carrying is, for example, CPRI interface business.The present invention
Usually there are multiple fifo modules, these fifo modules are (or right for receiving previous fifo module in the OTN equipment of embodiment
Hold OTN equipment) business data flow of transmitting, and business data flow is passed into next fifo module (or opposite end OTN equipment).
As shown in figure 3, being a kind of operation principle schematic diagram of OTN equipment provided in an embodiment of the present invention, can be seen in conjunction with Fig. 1 and Fig. 3
Out, the CPRI interface business between BBU and RRU is carried by OTN equipment, and data can be carried out between two OTN equipment 1 and 2
Interactive, the data transmission inside each OTN equipment has directionality, the i.e. direction A and the direction B, and Fig. 3 is to include 3 on the direction A
Fifo module (i.e. fifo module A1, fifo module A2, fifo module A3) includes 3 fifo module (i.e. FIFO moulds on the direction B
Block B1, fifo module B2, fifo module B3) for shown.For OTN equipment 1, on the direction A, fifo module A1
Business is received in customer side, and business is sent in line side by fifo module A3 by opposite end OTN equipment (i.e. OTN in Fig. 3
Equipment 2) line side；In directionb, fifo module B3 receives the business that OTN equipment in opposite end is sent in line side, and passes through
Fifo module B1 is sent in customer side.
In embodiments of the present invention, the working principle of fifo module is the read/write operation of business datum, i.e. fifo module exists
During business is transmitted, the data being first written first read data, and when executing write operation, the water level of fifo module rises, and execute
When read operation, the water level decreasing of fifo module, it can be seen that the rate of the water level height and read operation and write operation of fifo module
Correlation, the i.e. rate of read/write operation influence the peak level value and lowest water level value of fifo module.In the embodiment of the present invention
FIFO monitoring adjustment module can be monitored the water level monitoring value of each fifo module in OTN equipment, the water level monitoring value
Can be designer according to fifo module performance requirement determine, for example including peak level value, lowest water level value and
The difference of the two；When FIFO monitoring adjustment module monitors that the water level monitoring value of some fifo module meets preset condition, recognize
For water level regulation can be carried out to the fifo module, water level regulation instruction can be sent to the fifo module.
It should be noted that carrying due to the signal of BBU and RRU by OTN equipment, OTN equipment in both direction is needed
Time delay it is consistent.The water level of fifo module represents delay in the embodiment of the present invention, it can by adjusting fifo module
Water level adjusts the time delay of OTN equipment.
Fifo module 110, for being instructed according to from the FIFO monitoring received water level regulation of adjustment module 120, to this FIFO
Module 110 carries out water level regulation.
Fifo module in the embodiment of the present invention has the function of carrying out water level regulation, common FIFO mould in the prior art
The water level of block is usually determined by the rate of read/write operation, and flexibly the water level of fifo module can not be adjusted.In this hair
In bright embodiment, any one fifo module in OTN equipment receives the water level regulation that FIFO monitoring adjustment module is sent and refers to
When enabling, illustrate that the fifo module meets the condition for carrying out water level regulation, the mode of instruction can be instructed to carry out according to water level regulation
Water level regulation.
OTN equipment provided in an embodiment of the present invention carries in the scene of wireless forward pass, needs to meet CPRI interface business pair
The requirement of delay performance, the CPRI interface business is to low time delay and stablizes time delay requirement with higher.The water level of fifo module
The height of value indicate storing data in the fifo module number, since the clock of different fifo modules may be inconsistent, caching
Data volume it is also different, therefore, it is necessary to monitoring OTN equipment in each fifo module water level monitoring value after, to corresponding
Fifo module carry out water level adjustment.As shown in figure 4, for the water level of fifo module in OTN equipment provided in an embodiment of the present invention
Schematic diagram has peak level value (Max_level) and lowest water level value (Min_ during the read-write of fifo module 110
Level), wherein Min_level is smaller, and the requirement for meeting low time delay is better, and still, Min_level is smaller, resists clock
Change reduced performance, since the stability of CPRI interface business itself is preferable,, can when adjusting the water level of fifo module
Adjusting Min_level to a relatively small value, for example, a default lowest water level can be arranged in OTN equipment
It is worth (Preset-Min-level), in addition, the water level regulation instruction that FIFO monitoring adjustment module is sent can be basis and monitor
Water level monitoring value combination Preset-Min-level, the instruction of water level regulation is made to fifo module, in the water of fifo module
After position monitor value is stablized, it is adjusted with reference to water level of the Preset-Min-level to this fifo module, to meet CPRI
Business is to low time delay and the requirement for stablizing time delay.
OTN equipment provided in an embodiment of the present invention is monitored in adjustment module monitoring OTN equipment by FIFO and is supervised with the FIFO
The water level monitoring value for controlling each fifo module of adjustment module connection sends water level tune to corresponding fifo module according to monitoring result
Section instruction, then, fifo module can be instructed according to from the received water level regulation of FIFO monitoring adjustment module, to this FIFO
The water level of module is adjusted；In OTN equipment provided in an embodiment of the present invention, above-mentioned water level monitoring value can reflect correspondence
Whether fifo module meets the condition for carrying out water level regulation, i.e. FIFO monitors adjustment module can be in the water level of a certain fifo module
It when monitor value meets default monitoring condition, indicates that the fifo module carries out water level regulation, C- is being carried using OTN equipment to realize
In RAN network in the scene of wireless forward pass, meet CPRI interface business to low time delay and the performance requirement for stablizing time delay.
Optionally, Fig. 5 is a kind of structural schematic diagram of fifo module in OTN equipment provided in an embodiment of the present invention.This hair
Fifo module 110 in bright embodiment may include: status control unit 111 and cell fifo 112.
Wherein, status control unit 111, the water level regulation instruction sent for receiving FIFO monitoring adjustment module 120, and
Water level regulation instruction is sent to cell fifo 112；
Cell fifo 112 is used for according to written request signal or reading request signal, and the water level regulation instruction received,
Water level regulation is carried out to this cell fifo 112.
Fifo module in the embodiment of the present invention increases state control compared with fifo module common in the prior art
Unit, the status control unit are, for example, a water level control state machine (Finite StateMachine, referred to as are as follows: FSM),
That is (Level Control FSM), the status control unit can receive the water level regulation from FIFO monitoring adjustment module and refer to
It enables, and transmits the instruction to cell fifo；In addition, cell fifo can receive external written request signal or read request simultaneously
Signal instructs, to this cell fifo when the cell fifo receives written request signal or reading request signal in conjunction with water level regulation
Carry out water level regulation.
Further, in embodiments of the present invention, fifo module 110 further includes the first logic gate 113 and the second logic gate
114, water level regulation instruction, which is used to indicate, to be adjusted direction and adjusts number, and OTN equipment further includes the first logic gate and the second logic
Door, water level regulation instruction and written request signal are connected to the input terminal of the first logic gate 113, and water level regulation instruction and reading are asked
Ask the input terminal for being signally attached to the second logic gate 114, the output of the output end of the first logic gate 113 and the second logic gate 114
End is connected respectively to cell fifo 112, and written request signal and reading request signal are connected respectively to status control unit 111.This hair
In bright embodiment FIFO monitoring adjustment module 120 can UP/DOWN/REQ/NUM signal in the form of instructing to state
Control unit sends water level regulation instruction, and water level regulation instruction for example can be { DOWN, N, REQ }, indicates request by FIFO
The water level of module adjusts downwards n times.
Status control unit 111 is also used to after receiving water level regulation instruction issue to FIFO monitoring adjustment module 120
Governing response signal, and when receiving written request signal, by the output end of the first logic gate 113 to cell fifo 112
The first water level regulation signal is transmitted, when receiving reading request signal, by the output end of the second logic gate 114 to cell fifo
112 the second water level regulation signals of transmission.
112 pairs of this cell fifos 112 of cell fifo carry out the implementation of water level regulation in the embodiment of the present invention, can wrap
It includes: direction is adjusted according to the instruction of the first water level regulation signal or the second water level regulation signal and water level regulation instruction instruction
With adjusting number, corresponding number is adjusted downward or upward to the water level of this cell fifo 112.
Status control unit 111 is also used to cancel governing response signal after cell fifo 113 completes water level regulation.
In embodiments of the present invention, write request/reading request signal is interfered to realize water level regulation by status control unit,
Water level is adjusted according to Writing/Reading opportunity, fifo module is constantly in busy (BUSY) state and no longer receives new water level during adjustment
Adjustment instruction, therefore, after FIFO monitoring adjustment module sends water level regulation instruction to status control unit by pin, state control
Unit processed issues governing response signal (for example, BUSY signal) expression and receives regulating command；Also, pass through first/second logic
Door carrys out masked-write request/reading request signal.
For example, if water level regulation instruction is { DOWN, N, REQ }, expression needs to adjust water level into n times downwards, that is, exists
When receiving written request signal, refusal n times write-in adjusts downwards n times；In practical applications, it once writes and asks whenever collecting
Ask signal (Write_req), it is meant that the water level of cell fifo adjusts downwards one, and state becomes { DOWN, N-1, REQ }, according to
It is secondary analogize know that N is decremented to 0, i.e. the regulative mode of completion water level regulation instruction instruction, state control is single after completing water level regulation
Member cancels BUSY instruction.If water level regulation instruction is { UP, N, REQ }, expression is needed for water level to be adjusted up n times, that is, is being received
When to reading request signal (Read_req), refusal n times are read, the regulative mode of specific regulative mode and above-mentioned written request signal
Principle is identical, therefore details are not described herein.
Optionally, Fig. 6 is the structural schematic diagram of another kind OTN equipment provided in an embodiment of the present invention.OTN shown in Fig. 2
In the structure basis of equipment, the FIFO monitoring adjustment module 120 in the present embodiment may include:
Measuring unit 121, for the peak level value of each fifo module 110 in periodic measurement OTN equipment and minimum
Water level value；
Monitoring unit 122, in the period for monitoring preset quantity the peak level value of each fifo module 110 with it is minimum
The difference of the difference of water level value；
Unit 123 is adjusted, the difference of the difference for the peak level value and lowest water level value in each fifo module 110 is small
When preset water level difference, water level regulation instruction is sent to corresponding fifo module 110.
In embodiments of the present invention, with reference to the water level schematic diagram of fifo module shown in Fig. 4, the characteristics of according to OTN equipment,
With the stabilization of access service after OTN device power, (Max_level-Min_level) also can be a metastable value,
The especially highly stable business of this kind of rate of CRPI interface business, the value (Max_level-Min_level) are had by OTN equipment
The service logic implementation and business feature of body are determined.After OTN device power, which is periodically monitored, and
And judge whether the value reaches stable state, basis is provided for subsequent operation.
Optionally, in embodiments of the present invention, monitoring cycle is, for example, T, and the period of preset quantity is, for example, M cycle T,
Preset water level difference is △, and cycle T can choose as OTN frame period multiple, in each cycle T only measurement Max_level and
Min_level, the difference of the difference of Max_level and Min_level is delta (Max_level- in each and every one cycle T of continuous N
Min_level), in difference delta (Max_level-Min_level)≤△, the stable level of fifo module is indicated；Its
In, cycle T, preset quantity M and preset water level difference △ can be configured by designer, such as according to OTN equipment clock synchronization
The performance of the demand and fifo module prolonged is configured.
Optionally, in embodiments of the present invention, default lowest water level value is provided in OTN equipment 10, in OTN equipment 10
110 pairs of this fifo modules 110 of fifo module carry out the implementation of water level regulation, may include:
The peak level value, lowest water level value of this fifo module 110 that adjustment module 120 measures are monitored according to FIFO, with
And default lowest water level value and water level regulation instruction, by the lowest water level value of this fifo module 110 adjust to preset minimum water
Place value is equal, and keeps the difference of peak level value and lowest water level value constant.It should be noted that adjust lowest water level when
It waits, corresponding peak level can change therewith, it can keeping the difference of peak level value and lowest water level value is stationary value.
In embodiments of the present invention, the main variable time delay inside OTN equipment derives from the use of fifo module, therefore right
The water level regulation that fifo module carries out is the adjusting to OTN equipment inner time delay.Wherein, Max_level represents business warp
The time delay index of corresponding fifo module is crossed, delta (Max_level-Min_level) reflects the shake of business clock, in conjunction with
Above-mentioned to obtain, on the one hand Min_level represents the ability that the fifo module resists clock jitter, on the other hand also represents and works as
The preceding potentiality for reducing the fifo module time delay.In practical applications, after OTN device power, how each fifo module
Min_level is adjusted to a reasonable preset value, i.e., default lowest water level value (Preset-Min-level) seems especially heavy
It wants, which is that should guarantee the low time delay of CPRI interface business, and be unable to traffic affecting
Stability.According to power on stablize after fifo module lowest water level value (Min_level), FIFO monitor adjustment module issue it is corresponding
Water level regulation instruction the original of water level regulation carries out fifo module to the progress first time water level regulation of corresponding fifo module
Then are as follows: Min_level is adjusted to equal with Preset-Min-level, and corresponding according to Max_level-Min_level
Adjusting Max_level so that Max_level-Min_level after adjusting with adjust it is preceding equal.Carrying out first time water level
After adjusting, the Min_level of each fifo module in OTN equipment has met the requirement of Preset-Min-level, can
It is almost the same with the state of the fifo module of multiple OTN equipment in estimated C-RAN network, it can to meet to a certain extent
Low time delay and the requirement for stablizing time delay inside OTN equipment.
Optionally, in embodiments of the present invention, presetting lowest water level value (Preset-Min-level) can be by designer
Member's configuration, it is contemplated that the jitter of CPRI interface business is very low, and Preset-Min-level is for example configured to 2, when can resist
Clock shakes the influence to business, can also meet low time delay and stablize the requirement of time delay.It should be noted that the embodiment of the present invention is not
Limit the specific value of Preset-Min-level, the empirical value that statistics can also be selected to obtain, alternatively, according to OTN equipment and
The actual conditions of CPRI business are configured.
Further, in embodiments of the present invention, after fifo module carries out first time water level regulation in OTN equipment,
When can satisfy OTN equipment bearer service, to low time delay and the requirement for stablizing time delay.However, CPRI interface business to it is symmetrical when
The requirement prolonged is also very high, in order to further increase the delay performance of OTN equipment, it is also necessary to right when guaranteeing OTN equipment bearer service
The requirement of symmetrical time delay, this hair embodiment realize the demand of symmetrical time delay by following two mode.
Optionally, in an implementation of the embodiment of the present invention, default peak level value is provided in OTN equipment 10
(Preset-Max-level), as shown in fig. 7, being the structural schematic diagram of another OTN equipment provided in an embodiment of the present invention.?
In the structure basis of OTN equipment shown in Fig. 6, OTN equipment 10 provided in an embodiment of the present invention can also include: to monitor to adjust with FIFO
The delay compensation module 130 that section module 120 and each fifo module 110 are separately connected.
Wherein, delay compensation module 130, for presetting peak level value and FIFO monitoring adjustment module 120 according to this
The peak level value and lowest water level value of each fifo module 110 measured send the first time delay to corresponding fifo module 110 and mend
Repay instruction；
Fifo module 110, the first delay compensation instruction for being also used to be sent according to delay compensation module 130, by this FIFO
The peak level value of module 110 is adjusted to equal with default peak level value, and keep peak level value and lowest water level value it
Difference is constant.It should be noted that corresponding lowest water level can change therewith when adjusting peak level, it can keep
The difference of peak level value and lowest water level value is stationary value.
The embodiment of the present invention is using the default peak level value (Preset- that each fifo module in OTN equipment is directly arranged
Max-level mode) in practical applications needs that identical Preset-Max- is arranged to two OTN equipment of docking
The Max-level of level, that is, the two OTN equipment docked are adjusted to a certain about definite value (i.e. Preset-Max-level).It needs
Illustrate, water in the mode and above-described embodiment that the content and instruction that the first delay compensation instructs in the embodiment of the present invention are adjusted
Position regulating command is similar, therefore details are not described herein.
Optionally, in another implementation of the embodiment of the present invention, as shown in figure 8, being provided for the embodiment of the present invention
Another OTN equipment structural schematic diagram.It is provided in an embodiment of the present invention in the structure basis of OTN equipment shown in Fig. 6
It can also include: the time delay transfer module 140 being connect with FIFO monitoring adjustment module 120 in OTN equipment 10, and supervised with FIFO
Control adjustment module 120 and the delay compensation module 130 that is separately connected of each fifo module 110, the time delay transfer module 140 also with
Opposite end OTN equipment 20 connects；
Wherein, time delay transfer module 140, it is each in the OTN equipment 10 that adjustment module 120 measures for monitoring FIFO
The peak level value of fifo module 110 is sent to opposite end OTN equipment 20, and the opposite end OTN for receiving the transmission of opposite end OTN equipment 20 is set
The peak level value of each fifo module in standby 20.
Delay compensation module 130, for comparing the peak level value of each fifo module 110 and opposite end in OTN equipment 10
The peak level value that fifo module is corresponded in OTN equipment 20, when sending second to corresponding fifo module 110 according to comparing result
Prolong compensating instruction；
Fifo module 110 in the embodiment of the present invention, when being also used to described second according to the transmission of delay compensation module 130
Prolong compensating instruction, the peak level value for adjusting this fifo module 110 is equal with the peak level value of corresponding fifo module, and keeps
The difference of peak level value and lowest water level value is constant.It should be noted that when adjusting peak level, corresponding minimum water
Position can change therewith, it can keeping the difference of peak level value and lowest water level value is stationary value.
In order to further increase the delay performance of OTN equipment, OTN can be set on the basal layer of first time water level regulation
Standby internal time delay is quantified, i.e. transmitting and compensation.After fifo module carries out first time water level regulation, fifo module
Max_level reflects the time delay degree that business passes through the fifo module, and time delay transfer module is extracted each inside this OTN equipment
The Max_level of fifo module quantifies the time delay degree inside this OTN equipment on this basis, and passes to opposite end OTN and set
It is standby, while the Max_level of each fifo module in the OTN equipment of opposite end is obtained, these values will prepare for delay compensation, with full
The requirement of sufficient time delay symmetry.
In practical applications, there are diversified forms with transmitting for the quantization of OTN equipment inner time delay, such as: mode one directly passes
Pass the Max_level of each fifo module；Mode two calculates practical time delay using Max_level combination clock frequency and passes
It passs；Mode three sorts out fifo module, and the Max_level of similar fifo module is summed and transmitted.It should be noted that this
Inventive embodiments do not limit the concrete mode of transmitting Max_level, as long as can be used as the foundation of symmetrical time delay, to both sides
OTN equipment carries out the transfer mode of time delay supplement, can be used as the mode that Max_level is transmitted in the embodiment of the present invention.It needs
It is noted that in the content of the second delay compensation instruction and instruction are adjusted in the embodiment of the present invention mode and above-described embodiment
Water level regulation instruction is similar, therefore details are not described herein.
For example, the Max_level that can directly transmit each fifo module inside this OTN equipment, can also use
The mode that OTN equipment retains expense transmits Max_level.Refering to what is shown in Fig. 3, the acquisition of OTN equipment 1 local terminal fifo module A1,
A2, A3 ... An, B1, B2, B3 ... Bn } Max_level after first time water level regulation is carried out, and opened by line side using reservation
The mode of pin is transmitted to OTN equipment 2, while receiving the corresponding value of the transmission of OTN equipment 2.
Local terminal OTN equipment transmit Max_level, and receive opposite end OTN equipment transmitting Max_level after, that is, obtain
After local terminal time delay quantized value and opposite end time delay quantized value, it can be carried out second according to the Max_level of corresponding fifo module
Water level regulation, the principle of adjusting can be with are as follows: when the Max_level of local terminal fifo module is less than the Max_ that opposite end corresponds to fifo module
When level, the water level of local terminal fifo module is adjusted up, until the time delay of corresponding two fifo modules is equal,
Without water level regulation in the case of him.
The above two mode for carrying out second of water level regulation, can meet requirement of the OTN equipment to time delay symmetry
, select which kind of mode that can be determined according to practical application scene.That is, the mode of second of water level regulation can be selected
It selects, such as can be according to Preset-Max-level, it can also be according to the time delay quantized value of transmitting, wherein Preset-Max-
Level can be configured by designer.
OTN equipment provided in an embodiment of the present invention, after powering on stabilization, by carrying out first time water level tune to fifo module
Section, it is ensured that the Min_level value of corresponding fifo module can both reduce OTN near Preset-Min-level in this way
The propagation delay time of equipment bearer service, and can guarantee to reach relatively steady state after the water level of fifo module powers on every time,
The needs of meeting low time delay and stablizing time delay.In addition, to the quantization of OTN equipment inner time delay value and transmitting or foundation
Preset-Max-level carries out second of water level regulation to carry out the compensation of OTN equipment inner time delay, favorably to fifo module
In the requirement for meeting propagation delay time symmetry.Fifo module may be that the compensation of other asymmetric time delays provides interface, convenient
It is subsequent to further expand, especially suitable in wireless forward pass networking scene, transmission of the OTN equipment to CPRI interface business meets
Performance requirement problem of the CPRI interface business to low time delay, stable time delay and symmetrical time delay in transmission process.
When implementing to illustrate OTN equipment carrying CPRI interface business provided in an embodiment of the present invention with one below, lead to
Overregulate fifo module carrys out demand of the CPRI interface business to delay performance.
Since CPRI interface business has very high requirement to delay performance, for example, low time delay stablizes time delay and right
Claim time delay etc..The mode of OTN equipment carrying CPRI interface business is difficult to meet above-mentioned delay requirement in the prior art.Therefore, it adopts
With OTN equipment application provided in an embodiment of the present invention in wireless forward pass scene shown in FIG. 1, it is ensured that inside OTN equipment
Delay performance, while providing delay compensation method and interface, extension can also be provided for other asymmetric time delays and supported.
As shown in figure 9, showing for a kind of application scenarios that OTN equipment provided in an embodiment of the present invention carries CPRI interface business
It is intended to.Scene shown in Fig. 9 is with 2 carrying CPRI of optical conversion element (Optical Transform Unit, referred to as are as follows: OTU)
Illustrate the mode for executing water level regulation for the embodiment of Option-4.According to the explanation of ITU-T G.709 agreement, first
CPRI is mapped to by bit synchronization mapping program (Bit-synchronous Mapping Procedure, referred to as are as follows: BMP)
ODUflex, then ODUflex passes through general mapping program (Generic Mapping Procedure, referred to as are as follows: GMP) mapping
To Optical Channel Data Unit-k (Optical Channel Data Unit, referred to as are as follows: OUD) 2, then it is logical to be packaged into OTU2 for mapping
Cross optical fiber transmission.Fifo module on the service path of OTN equipment is mainly used for the mapping/demapping and cross clock domain of business
Processing.
As shown in Figure 9.Mapping relations on the direction A are as follows:
1, Cpri4 is mapped to A_FIFO_1 used in ODUflex；
2, ODUflex is mapped to A_FIFO_2 used in ODU2；
3, ODU2 is mapped to A_FIFO_3 used in OTU2.
Mapping relations in directionb are as follows:
1, B_FIFO_1 used in OTU2 demapping to ODU2；
2, B_FIFO_2 used in ODU2 demapping to ODUflex；
3, B_FIFO_3 used in ODUflex demapping to Cpri4.
Figure 10 is the flow chart that water level regulation is carried out using OTN equipment provided in an embodiment of the present invention.The present embodiment provides
Method include the following steps, i.e. S110~S140:
After S110, OTN equipment 1 powers on, the water level monitoring value of each fifo module in OTN equipment 1 is monitored.
Wherein, the fifo module in OTN equipment 1 includes: A_FIFO_X, B_FIFO_X, that is, monitors these fifo modules
Max_level-Min_level value, such as be monitored within continuous 16 OTU2 frame period, the variation of value table within 1
Show that CPRI interface business reaches stable；Wherein, T=OTU2 frame period, M=16, △=1.Although powering on rear Max_ every time
The value of level, Min_level are all not fixed, but as the stabilization of business (Max_level-Min_level) is relatively fixed,
Certain once powers on and after business stabilization, and the water level value of each fifo module is as shown in table 1 in OTN equipment 1:
Water level value after 1 OTN equipment of table, 1 business is stable
After the business of each fifo module is stablized in S120, OTN equipment, by the Min_ of fifo module each in OTN equipment
Level is adjusted to 2 (i.e. Preset-Min-level).It should be noted that keep (the Max_level-Min_ after adjusting
Level) identical as before adjusting, Max_level can be adjusted accordingly.By above-mentioned first time water level regulation, do not influencing
On the basis of CPRI interface business, available lower propagation delay time, while also can guarantee the stability for powering on time delay.By
After current water level adjustment, the water level value of each fifo module is as shown in table 2 in OTN equipment 1:
2 OTN equipment 1 of table carries out the water level value after first time water level regulation
S130, OTN equipment carry out delay compensation.The present embodiment OTN equipment carries out delay compensation for example including following two
Mode.
Mode one: S131 is that each fifo module configures identical Preset-Max- in OTN equipment 1 and OTN equipment 2
Level adjusts the Max_level of each fifo module to equal with Preset-Max-level, and keeps Max_level-
Min_level is constant.The water level value for carrying out each fifo module in OTN equipment 1 after this is adjusted is as shown in table 3:
3 OTN equipment 1 of table carries out the water level value after second of water level regulation
In the regulative mode, after OTN equipment 2 equally executes above-mentioned S110~S130, it can guarantee in two OTN equipment
The Max_level of each fifo module is all the same, while being unable to traffic affecting other performance.To reach OTN equipment 1 and 2
Requirement of the propagation delay time to stability and symmetry.
Mode two:
S132, OTN equipment 1 passes to the Max_level of each fifo module of local terminal { A_FIFO_X, B_FIFO_X }
OTN equipment 2, and receive the Max_level of each of which fifo module of the transmitting of OTN equipment 2.Above-mentioned value can for example pass through
The expense of ODU2/ODUflex is transmitted.
S133, on the basis of the Max_level of fifo module is transmitted in completing S130, OTN equipment 1 and OTN equipment 2 are divided
Not Dui Bi local terminal (proximal end) and opposite end (distal end) Max_level difference, and complete to be adjusted up and (be worth small one side to value greatly
Adjusting on one side)；It is finally reached the Max_level of the FIFO of two OTN equipment of docking purpose all the same, to reach
Requirement of the propagation delay time of OTN equipment 1 and 2 to stability and symmetry.For example, OTN equipment 2 is executing S110, S120
After S132, wherein the water level value of each fifo module is as shown in table 4:
4 OTN equipment 2 of table carries out the water level value after first time water level regulation
According to table 2 and table 4, the Max_level of each fifo module of the interaction of OTN equipment 1 and 2, and according to interactive Max_
The Max_level of level and local terminal is compared, and carries out second of water level regulation.Carry out OTN equipment after second of water level regulation
1 and 2 water level value difference is as shown in table 5 and table 6.
5 OTN equipment 1 of table carries out the water level value after second of water level regulation
6 OTN equipment 2 of table carries out the water level value after second of water level regulation
It should be noted that S131 in process shown in Figure 10 and S132~S133 are selectively executed, S131 with
S132~S133 is two kinds of implementations that fifo module compensates adjusting in OTN equipment, usually selects an execution.
Figure 11 is a kind of flow chart of method for processing business provided in an embodiment of the present invention.At business provided in this embodiment
Reason method suitable for OTN equipment carry wireless forward pass C-RAN network in the case where, the method for processing business is by OTN equipment
It executes, which is realized in conjunction with by way of hardware and software.As shown in figure 11, the business processing side of the present embodiment
Method may include steps of, i.e. S210~S220:
S210 monitors the water level monitoring value of each fifo module in OTN equipment.
Method for processing business provided in an embodiment of the present invention, for OTN equipment carry C-RAN network in wireless forward pass when at
The method of reason business, such as the business of OTN equipment carrying is, for example, CPRI interface business.The OTN equipment of the embodiment of the present invention
In usually have multiple fifo modules, these fifo modules for receive previous fifo module (or opposite end OTN equipment) transmitting
Business data flow, and business data flow is passed into next fifo module (or opposite end OTN equipment).Fig. 3 institute can be referred to
Show that the working principle of OTN equipment is shown, the bearer service and working principle of OTN equipment have been described in detail in the above-described embodiments,
Therefore details are not described herein.
In embodiments of the present invention, the working principle of fifo module is the read/write operation of business datum, i.e. fifo module exists
During business is transmitted, the data being first written first read data, and when executing write operation, the water level of fifo module rises, and execute
When read operation, the water level decreasing of fifo module, it can be seen that the rate of the water level height and read operation and write operation of fifo module
Correlation, the i.e. rate of read/write operation influence the peak level value and lowest water level value of fifo module.It is provided in the embodiment of the present invention
Method the water level monitoring value of each fifo module in OTN equipment can be monitored, which can be design
Personnel are according to the performance requirement determination to fifo module, the difference for example including peak level value, lowest water level value and the two；?
When monitoring that the water level monitoring value of some fifo module in OTN equipment meets preset condition, it is believed that can be to the fifo module
Carry out water level regulation.
It should be noted that being carried in OTN equipment carrying C-RAN network in the scene of wireless forward pass, due to BBU and RRU
Two sides all have OTN equipment, in order in business transmission process, the symmetry of time delay, and the FIFO mould in OTN equipment in both direction
The quantity of block is identical；Namely illustrating, the fifo module in the OTN equipment of the embodiment of the present invention is even number, and
The quantity of fifo module in each direction is equal.
S220, according to the water level monitoring value of each fifo module, to the carry out water level regulation of corresponding fifo module.
Fifo module in the embodiment of the present invention has the function of carrying out water level regulation, common FIFO mould in the prior art
The water level of block is usually determined by the rate of read/write operation, and flexibly the water level of fifo module can not be adjusted.In this hair
In bright embodiment, any one fifo module in OTN equipment can know the FIFO mould according to the water level monitoring value monitored
Whether block meets the condition for carrying out water level regulation, is to carry out water level regulation to the fifo module in the condition of satisfaction.
OTN equipment provided in an embodiment of the present invention carries in the scene of wireless forward pass, needs to meet CPRI interface business pair
The requirement of delay performance, the CPRI interface business is to low time delay and stablizes time delay requirement with higher.The water level of fifo module
The height of value indicate storing data in the fifo module number, since the clock of different fifo modules may be inconsistent, caching
Data volume it is also different, therefore, it is necessary to monitoring OTN equipment in each fifo module water level monitoring value after, to corresponding
Fifo module carry out water level adjustment.The water level schematic diagram that fifo module shown in Fig. 4 can be referred to, in the read-write of fifo module
In the process, there is peak level value (Max_level) and lowest water level value (Min_level), wherein Min_level is smaller, full
The requirement of sufficient low time delay is better, and still, Min_level is smaller, the variation reduced performance of clock is resisted, due to CPRI interface business
The stability of itself is preferable, therefore, when adjusting the water level of fifo module, Min_level can be adjusted to one relatively
Small value, for example, a default lowest water level value (Preset-Min-level) can be arranged in OTN equipment, in addition, FIFO
When module carries out water level regulation, it can be using the water level monitoring value combination Preset-Min-level monitored as foundation,
After the water level monitoring value of fifo module is stablized, it is adjusted with reference to water level of the Preset-Min-level to this fifo module,
To meet CPRI business to low time delay and the requirement for stablizing time delay.
Method for processing business provided in an embodiment of the present invention is the place for the OTN equipment that embodiment illustrated in fig. 2 of the present invention provides
Reason method has corresponding method and step, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, Figure 12 is the flow chart of another method for processing business provided in an embodiment of the present invention.Shown in Figure 11
On the basis of process, the S220 in the embodiment of the present invention may include:
S221 sends water level regulation instruction to corresponding fifo module according to the water level monitoring value of each fifo module；
S222, fifo module is according to written request signal or reading request signal, and the water level regulation instruction received, to this
Fifo module carries out water level regulation.
Fifo module in the embodiment of the present invention increases control water level compared with fifo module common in the prior art
Function, which can for example be realized by a water level control state machine (Level ControlFSM), with reference to shown in Fig. 5
The structure of fifo module, the Level Control FSM can be according to the water level monitoring values of each fifo module, to corresponding FIFO
Module sends water level regulation instruction, so that fifo module can receive external written request signal or reading request signal
When, it is instructed in conjunction with water level regulation, water level regulation is carried out to this fifo module.
Further, in embodiments of the present invention, water level regulation instruction, which is used to indicate, adjusts direction and adjusting number, this hair
The method that bright embodiment provides can also include: before S222
Fifo module issues governing response signal；
The implementation of S222 in the embodiment of the present invention may include: that fifo module is receiving written request signal or reading
When request signal, according to water level regulation instruct in adjust direction and adjust number, downward or upward to the water level of this fifo module
Corresponding number is adjusted, and cancels governing response signal after completing water level regulation.
It should be noted that the structure of fifo module is referred in above-mentioned embodiment illustrated in fig. 5 in the embodiment of the present invention
The structure of fifo module；In addition, content and FIFO mould that water level regulation instructs in this hair embodiment form and instruction are adjusted
Root tuber carries out the mode of water level regulation according to instruction, has been described in detail in above-described embodiment, therefore details are not described herein.
Method for processing business provided in an embodiment of the present invention is the place for the OTN equipment that embodiment illustrated in fig. 5 of the present invention provides
Reason method has corresponding method and step, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, Figure 13 is the flow chart of another method for processing business provided in an embodiment of the present invention.Shown in Figure 11
On the basis of process, the implementation of S210 in the embodiment of the present invention may include:
S211, the peak level value and lowest water level value of each fifo module in periodic measurement OTN equipment；
S212 monitors the difference of the peak level value of each fifo module in the period of preset quantity and the difference of lowest water level value
Value；
S213 is less than or equal to default water in the difference of the difference of the peak level value and lowest water level value of each fifo module
When potential difference value, the water level for adjusting corresponding fifo module is determined.
Optionally, in embodiments of the present invention, monitoring cycle is, for example, T, and the period of preset quantity is, for example, M cycle T,
Preset water level difference is △, and cycle T can choose as OTN frame period multiple, in each cycle T only measurement Max_level and
Min_level, the difference of the difference of Max_level and Min_level is delta (Max_level- in each and every one cycle T of continuous N
Min_level), in difference delta (Max_level-Min_level)≤△, the stable level of fifo module is indicated；Its
In, cycle T, preset quantity M and preset water level difference △ can be configured by designer, such as according to OTN equipment clock synchronization
The performance of the demand and fifo module prolonged is configured.
Optionally, in embodiments of the present invention, it is provided with default lowest water level value in OTN equipment, the implementation of S220,
May include:
According to the peak level value of fifo module, lowest water level value and default lowest water level value, most by the fifo module
Low water level value is adjusted to equal with default lowest water level value, and keeps the difference of peak level value and lowest water level value constant.It needs
Illustrate, when adjusting lowest water level, corresponding peak level can change therewith, it can keep peak level value with
The difference of lowest water level value is stationary value.Fifo module carries out the principle and foundation of water level regulation in the embodiment of the present invention, and adjusts
Section mode and the effect after adjusting, have been described in above-described embodiment, therefore details are not described herein.
It should be noted that the default lowest water level value (Preset-Min-level) in the embodiment of the present invention can be by setting
Count personnel depaly, it is contemplated that the jitter of CPRI interface business is very low, and Preset-Min-level is for example configured to 2, can support
Imperial influence of the clock jitter to business, can also meet low time delay and stablize the requirement of time delay.It should be noted that the present invention is implemented
Example does not limit the specific value of Preset-Min-level, the empirical value that statistics can also be selected to obtain, alternatively, setting according to OTN
Standby and CPRI business actual conditions are configured.
Method for processing business provided in an embodiment of the present invention is the place for the OTN equipment that embodiment illustrated in fig. 6 of the present invention provides
Reason method has corresponding method and step, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Further, in embodiments of the present invention, after fifo module carries out first time water level regulation in OTN equipment,
When can satisfy OTN equipment bearer service, to low time delay and the requirement for stablizing time delay.However, CPRI interface business to it is symmetrical when
The requirement prolonged is also very high, in order to further increase the delay performance of OTN equipment, it is also necessary to right when guaranteeing OTN equipment bearer service
The requirement of symmetrical time delay, this hair embodiment realize the demand of symmetrical time delay by following two mode.
Optionally, in an implementation of the embodiment of the present invention, default peak level value is provided in OTN equipment
It (Preset-Max-level), as shown in figure 14, is the flow chart of another method for processing business provided in an embodiment of the present invention.
On the basis of the process shown in Figure 11, method provided in an embodiment of the present invention can also include:
S230, according to default peak level value and the peak level value and lowest water level value of fifo module, by FIFO mould
The peak level value of block is adjusted to equal with default peak level value, and keeps the difference of peak level value and lowest water level value not
Become.It should be noted that corresponding lowest water level can change therewith when adjusting peak level, it can keep highest
The difference of water level value and lowest water level value is stationary value.
The embodiment of the present invention is using the default peak level value (Preset- that each fifo module in OTN equipment is directly arranged
Max-level mode) in practical applications needs that identical Preset-Max- is arranged to two OTN equipment of docking
The Max-level of level, that is, the two OTN equipment docked are adjusted to a certain about definite value (i.e. Preset-Max-level).
Method for processing business provided in an embodiment of the present invention is the place for the OTN equipment that embodiment illustrated in fig. 7 of the present invention provides
Reason method has corresponding method and step, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, it in another implementation of the embodiment of the present invention, as shown in figure 15, is provided for the embodiment of the present invention
Another method for processing business flow chart.On the basis of the process shown in Figure 11, method provided in an embodiment of the present invention is also
May include:
The peak level value of fifo module each in OTN equipment is sent to opposite end OTN equipment, and receives opposite end by S240
The peak level value of each fifo module in the opposite end OTN equipment that OTN equipment is sent；
S250 is compared in OTN equipment and is corresponded to fifo module in the peak level value and opposite end OTN equipment of each fifo module
Peak level value, peak level value and the corresponding fifo module of fifo module in OTN equipment are adjusted most according to comparing result
High watermark value is equal, and keeps the difference of peak level value and lowest water level value constant.It should be noted that adjusting peak level
When, corresponding lowest water level can change therewith, it can keeping the difference of peak level value and lowest water level value is stationary value.
Local terminal OTN equipment transmit Max_level, and receive opposite end OTN equipment transmitting Max_level after, that is, obtain
After local terminal time delay quantized value and opposite end time delay quantized value, it can be carried out second according to the Max_level of corresponding fifo module
The method of water level regulation, adjusting is as shown in figure 16, is a kind of carry out time delay in method for processing business provided in an embodiment of the present invention
The flow chart of compensation, includes the following steps:
S310, judges whether the Max_level of local terminal fifo module is less than the Max_level that opposite end corresponds to fifo module；
S320, when the Max_level of local terminal fifo module, which is less than opposite end, corresponds to the Max_level of fifo module, to this
The water level of end fifo module is adjusted up；Then, S310~S320 is continued to execute, until corresponding two fifo modules
Max_level is equal.
In addition, when the Max_level of local terminal fifo module is greater than or equal to the Max_level that opposite end corresponds to fifo module
When, terminate process, i.e., without water level regulation.
Method for processing business provided in an embodiment of the present invention is the place for the OTN equipment that embodiment illustrated in fig. 8 of the present invention provides
Reason method has corresponding method and step, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, which has meter
Calculation machine executable instruction proceeds as follows when the processor executes the computer executable instructions:
S41 monitors the water level monitoring value of each fifo module in OTN equipment；
S42, according to the water level monitoring value of each fifo module, to the carry out water level regulation of corresponding fifo module.
Optionally, in embodiments of the present invention, when which executes the computer executable instructions, operation S42 is executed
Implementation, may include:
S421 sends water level regulation instruction to corresponding fifo module according to the water level monitoring value of each fifo module；
S422, fifo module is according to written request signal or reading request signal, and the water level regulation instruction received, to this
Fifo module carries out water level regulation.
Optionally, in embodiments of the present invention, water level regulation instruction, which is used to indicate, adjusts direction and adjusting number, the processing
Device executes the computer executable instructions, before executing operation S422, can also proceed as follows:
S4211, fifo module issue governing response signal；
S4212, fifo module carry out water level regulation to this fifo module, comprising:
S4213, fifo module when receiving written request signal or reading request signal, according to water level regulation instruct in adjust
Direction and adjusting number, adjust corresponding number to the water level of this fifo module, and after completing water level regulation downward or upward
Cancel governing response signal.
Optionally, in embodiments of the present invention, when which executes the computer executable instructions, operation S41 is executed
Implementation, may include:
S411, the peak level value and lowest water level value of each fifo module in periodic measurement OTN equipment；
S412 monitors the difference of the peak level value of each fifo module in the period of preset quantity and the difference of lowest water level value
Value；
S413 is less than or equal to default water in the difference of the difference of the peak level value and lowest water level value of each fifo module
When potential difference value, the water level for adjusting corresponding fifo module is determined.
Optionally, in embodiments of the present invention, default lowest water level value is provided in OTN equipment, which executes should
When computer executable instructions, the implementation of operation S42 is executed, may include:
According to the peak level value of fifo module, lowest water level value and default lowest water level value, by the minimum of fifo module
Water level value is adjusted to equal with default lowest water level value.
In a kind of possible implementation of the embodiment of the present invention, default peak level value is provided in OTN equipment, it should
When processor executes the computer executable instructions, it can also proceed as follows:
S43, according to default peak level value and the peak level value and lowest water level value of fifo module, by fifo module
Peak level value adjust to equal with default peak level value.
In the alternatively possible implementation of the embodiment of the present invention, which executes the computer executable instructions
When, it can also proceed as follows:
The peak level value of fifo module each in OTN equipment is sent to opposite end OTN equipment, and receives opposite end by S44
The peak level value of each fifo module in the opposite end OTN equipment that OTN equipment is sent；
S45 is compared in OTN equipment and is corresponded to fifo module in the peak level value and opposite end OTN equipment of each fifo module
Peak level value, peak level value and the corresponding fifo module of fifo module in OTN equipment are adjusted most according to comparing result
High watermark value is equal.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be referred to by program
Related hardware (such as processor) is enabled to complete, described program can store in computer readable storage medium, such as read-only storage
Device, disk or CD etc..Optionally, one or more integrated circuits also can be used in all or part of the steps of above-described embodiment
To realize.Correspondingly, each module/unit in above-described embodiment can take the form of hardware realization, such as pass through integrated electricity
Its corresponding function is realized on road, can also be realized in the form of software function module, such as is stored in by processor execution
Program/instruction in memory realizes its corresponding function.The embodiment of the present invention be not limited to any particular form hardware and
The combination of software.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (14)
1. a kind of Optical Transmission Network OTN equipment, which is characterized in that the Optical Transmission Network OTN OTN equipment includes: multiple fifo queues
Fifo module, and the FIFO being separately connected with each fifo module monitor adjustment module；
Wherein, FIFO monitors adjustment module, for monitoring the water level monitoring value of each fifo module in the OTN equipment,
Water level regulation instruction is sent to corresponding fifo module according to monitoring result；
The fifo module, for being instructed according to from the received water level regulation of FIFO monitoring adjustment module, to this
Fifo module carries out water level regulation.
2. Optical Transmission Network OTN equipment according to claim 1, which is characterized in that the fifo module includes: that state control is single
Member and cell fifo；
The status control unit, the water level regulation instruction sent for receiving the FIFO monitoring adjustment module, and will be described
Water level regulation instruction is sent to the cell fifo；
The cell fifo is used for according to written request signal or reading request signal, and the water level regulation instruction received,
Water level regulation is carried out to this cell fifo.
3. Optical Transmission Network OTN equipment according to claim 2, which is characterized in that the fifo module further includes the first logic gate
With the second logic gate, the water level regulation instruction, which is used to indicate, to be adjusted direction and adjusts number, and the water level regulation instructs and institute
The input terminal that written request signal is connected to first logic gate is stated, the water level regulation instruction is connected with the reading request signal
To the input terminal of second logic gate, the output end of the output end of first logic gate and second logic gate connects respectively
It is connected to the cell fifo, the written request signal and the reading request signal are connected respectively to the status control unit；
The status control unit is also used to after receiving the water level regulation instruction to FIFO monitoring adjustment module hair
Governing response signal out, and when receiving the written request signal, by the output end of first logic gate to described
Cell fifo transmits the first water level regulation signal and passes through the defeated of second logic gate when receiving the reading request signal
Outlet transmits the second water level regulation signal to the cell fifo；
The cell fifo carries out water level regulation to this cell fifo, comprising:
It is indicated according to the first water level regulation signal or the second water level regulation signal and water level regulation instruction
Instruction adjusts direction and adjusts number, adjusts corresponding number downward or upward to the water level of this cell fifo；
The status control unit is also used to cancel the governing response signal after the cell fifo completes water level regulation.
4. Optical Transmission Network OTN equipment according to claim 1, which is characterized in that the FIFO monitors adjustment module and includes:
Measuring unit, peak level value and minimum water for the fifo module each in OTN equipment described in periodic measurement
Place value；
Monitoring unit, the peak level value Yu lowest water level value of each fifo module in the period for monitoring preset quantity
Difference difference；
Unit is adjusted, the difference of the difference for the peak level value and lowest water level value in each fifo module is less than or waits
When preset water level difference, water level regulation instruction is sent to corresponding fifo module.
5. Optical Transmission Network OTN equipment according to claim 4, which is characterized in that be provided in the OTN equipment preset it is minimum
Water level value, the fifo module carry out water level regulation to this fifo module, comprising:
The peak level value of this fifo module for measuring of adjustment module, lowest water level value and described are monitored according to the FIFO
Default lowest water level value and water level regulation instruction, by the lowest water level value of this fifo module adjust to it is described preset it is minimum
Water level value is equal.
6. Optical Transmission Network OTN equipment according to claim 4 or 5, which is characterized in that be provided with and preset most in the OTN equipment
High watermark value, the OTN equipment further include: be separately connected with FIFO monitoring adjustment module and each fifo module
Delay compensation module；
The delay compensation module, for what is measured according to the default peak level value and FIFO monitoring adjustment module
The peak level value and lowest water level value of each fifo module send the instruction of the first delay compensation to corresponding fifo module；
The fifo module, first delay compensation instruction for being also used to be sent according to the delay compensation module, incite somebody to action this
The peak level value of fifo module is adjusted to equal with the default peak level value.
7. Optical Transmission Network OTN equipment according to claim 4 or 5, which is characterized in that the OTN equipment further include: with it is described
FIFO monitors the time delay transfer module of adjustment module connection, and monitors adjustment module and each FIFO mould with the FIFO
The delay compensation module that block is separately connected, the time delay transfer module are also connect with opposite end OTN equipment；
Time delay transfer module, for the FIFO to be monitored each FIFO mould in the OTN equipment that adjustment module measures
The peak level value of block is sent to opposite end OTN equipment, and receives in the opposite end OTN equipment that the opposite end OTN equipment is sent
The peak level value of each fifo module；
The delay compensation module, for compare in the OTN equipment peak level value of each fifo module with it is described
The peak level value that fifo module is corresponded in the OTN equipment of opposite end, when sending second to corresponding fifo module according to comparing result
Prolong compensating instruction；
The fifo module, second delay compensation instruction for being also used to be sent according to the delay compensation module, adjusts this
The peak level value of fifo module is equal with the peak level value of the corresponding fifo module.
8. a kind of method for processing business characterized by comprising
Monitor the water level monitoring value of each fifo queue fifo module in OTN equipment；
According to the water level monitoring value of each fifo module, to the carry out water level regulation of corresponding fifo module.
9. method for processing business according to claim 8, which is characterized in that the water according to each fifo module
Position monitor value, the carry out water level regulation of described pair of corresponding fifo module, comprising:
According to the water level monitoring value of each fifo module, water level regulation instruction is sent to corresponding fifo module；
The fifo module is according to written request signal or reading request signal, and the water level regulation instruction received, to this
Fifo module carries out water level regulation.
10. method for processing business according to claim 9, which is characterized in that the water level regulation instruction is used to indicate tune
It saves direction and adjusts number, before the fifo module carries out water level regulation to this fifo module, the method also includes:
The fifo module issues governing response signal；
The fifo module carries out water level regulation to this fifo module, comprising:
The fifo module is instructed when receiving the written request signal or the reading request signal according to the water level regulation
Described in adjusting direction and adjust number, corresponding number is adjusted downward or upward to the water level of this fifo module, and complete
Cancel the governing response signal after water level regulation.
11. method for processing business according to claim 8, which is characterized in that each advanced elder generation in the monitoring OTN equipment
The water level monitoring value of dequeue fifo module, comprising:
The peak level value and lowest water level value of each fifo module in OTN equipment described in periodic measurement；
Monitor the difference of the difference of the peak level value and lowest water level value of each fifo module in the period of preset quantity；
It is poor to be less than or equal to preset water level in the difference of the difference of the peak level value and lowest water level value of each fifo module
When value, the water level for adjusting corresponding fifo module is determined.
12. method for processing business according to claim 11, which is characterized in that be provided with and preset most in the OTN equipment
Low water level value, the carry out water level regulation of described pair of corresponding fifo module, comprising:
According to the peak level value of the fifo module, lowest water level value and the default lowest water level value, by the FIFO mould
The lowest water level value of block is adjusted to equal with the default lowest water level value.
13. method for processing business according to claim 11 or 12, which is characterized in that be provided in the OTN equipment pre-
If peak level value, the method also includes:
According to the default peak level value and the peak level value and lowest water level value of the fifo module, by the FIFO
The peak level value of module is adjusted to equal with the default peak level value.
14. method for processing business according to claim 11 or 12, which is characterized in that the method also includes:
The peak level value of the fifo module each in the OTN equipment is sent to opposite end OTN equipment, and receive it is described right
The peak level value of each fifo module in the opposite end OTN equipment for holding OTN equipment to send；
It compares in the OTN equipment and corresponds to FIFO in the peak level value of each fifo module and the opposite end OTN equipment
The peak level value of module, according to comparing result adjust in the OTN equipment peak level value of fifo module with it is described corresponding
The peak level value of fifo module is equal.
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| CN113473267A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Data transmission method, device and communication device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771356A (en) * | 1995-01-04 | 1998-06-23 | Cirrus Logic, Inc. | Apparatus for controlling FIFO buffer data transfer by monitoring bus status and FIFO buffer thresholds |
| US20040156325A1 (en) * | 2002-11-18 | 2004-08-12 | Perkins Drew D. | Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same |
| CN101374030A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Synchronizing system and method for virtual cascade of light transportation network |
| CN101645749A (en) * | 2009-09-04 | 2010-02-10 | 中兴通讯股份有限公司 | Device and method for demapping optical transport data unit |
| CN101707506A (en) * | 2009-11-06 | 2010-05-12 | 中兴通讯股份有限公司 | Business clock transparent transmission method and system in optical transport network |
| CN101727422A (en) * | 2008-10-29 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and system for controlling unibus equipment |
| WO2011085587A1 (en) * | 2010-08-10 | 2011-07-21 | 华为技术有限公司 | Method, system and device for transmitting synchronous digital hierarchy signals by microwave |
| CN102687526A (en) * | 2012-02-14 | 2012-09-19 | 华为技术有限公司 | Delay measurement method and optical transport network device |
| CN203825802U (en) * | 2014-03-25 | 2014-09-10 | 河海大学 | Awakenable wireless sensor network node module for water level monitoring |
| CN204373741U (en) * | 2015-01-21 | 2015-06-03 | 安徽工程大学 | A kind of water level detecting system |
| WO2016000423A1 (en) * | 2014-06-30 | 2016-01-07 | 中兴通讯股份有限公司 | Delay compensation method and device |
-
2017
- 2017-05-22 CN CN201710363500.5A patent/CN108959143B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771356A (en) * | 1995-01-04 | 1998-06-23 | Cirrus Logic, Inc. | Apparatus for controlling FIFO buffer data transfer by monitoring bus status and FIFO buffer thresholds |
| US20040156325A1 (en) * | 2002-11-18 | 2004-08-12 | Perkins Drew D. | Optical transmission network with asynchronous mapping and demapping and digital wrapper frame for the same |
| CN101374030A (en) * | 2007-08-24 | 2009-02-25 | 华为技术有限公司 | Synchronizing system and method for virtual cascade of light transportation network |
| CN101727422A (en) * | 2008-10-29 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and system for controlling unibus equipment |
| CN101645749A (en) * | 2009-09-04 | 2010-02-10 | 中兴通讯股份有限公司 | Device and method for demapping optical transport data unit |
| CN101707506A (en) * | 2009-11-06 | 2010-05-12 | 中兴通讯股份有限公司 | Business clock transparent transmission method and system in optical transport network |
| WO2011085587A1 (en) * | 2010-08-10 | 2011-07-21 | 华为技术有限公司 | Method, system and device for transmitting synchronous digital hierarchy signals by microwave |
| CN102687526A (en) * | 2012-02-14 | 2012-09-19 | 华为技术有限公司 | Delay measurement method and optical transport network device |
| US20130266323A1 (en) * | 2012-02-14 | 2013-10-10 | Huawei Technologies Co., Ltd. | Delay measurement method and optical transport network device |
| CN203825802U (en) * | 2014-03-25 | 2014-09-10 | 河海大学 | Awakenable wireless sensor network node module for water level monitoring |
| WO2016000423A1 (en) * | 2014-06-30 | 2016-01-07 | 中兴通讯股份有限公司 | Delay compensation method and device |
| CN204373741U (en) * | 2015-01-21 | 2015-06-03 | 安徽工程大学 | A kind of water level detecting system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113473267A (en) * | 2020-03-31 | 2021-10-01 | 华为技术有限公司 | Data transmission method, device and communication device |
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