CN105323053A - Business clock transparent transmission method and apparatus - Google Patents
Business clock transparent transmission method and apparatus Download PDFInfo
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- CN105323053A CN105323053A CN201410282726.9A CN201410282726A CN105323053A CN 105323053 A CN105323053 A CN 105323053A CN 201410282726 A CN201410282726 A CN 201410282726A CN 105323053 A CN105323053 A CN 105323053A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
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Abstract
The present invention discloses a business clock transparent transmission method and apparatus. The business clock transparent transmission method includes the steps as follows: sampling business data and acquiring the amount of effective sampling points of the business data when the business data needs to be transmitted; calculating out characterization data corresponding to the clock information of the business clock according to a preset algorithm and the amount of the acquired effective sampling points; transmitting the characterization data to objective equipment so that the objective equipment acquires the clock information of the business data according to the characterization data. The present invention also discloses a business clock transparent transmission apparatus. According to the invention, the precision of the clock after transparent transmission following the clock to be transparently transmitted reaches to Bit level, jitter phenomenon of the clock after transparent transmission is reduced, the quantity of the clock after transparent transmission is improved, the clock after transparent transmission can directly meet the practical use requirement, and therefore, the cost of clock synchronization is reduced.
Description
Technical field
The present invention relates to technical field of photo communication, particularly relate to method and the device of business clock transparent transmission.
Background technology
Along with the development of optical communication technique, a lot of application (as 1588 agreements) just needs to be based upon on the clock synchronous of the whole network.Therefore, transmission equipment of today not only needs service data transmission itself in the transmitting procedure of carrying out business datum, also need to transmit the clock information (namely needing to carry out business clock transparent transmission) characterizing traffic data rate, can ensure that the business of the whole network keeps clock synchronous like this.
At present, in order to realize clock transparent transmission, the JC value during relevant service in G.709 agreement can be adopted to map, Cn (t), Cm (t) and ∑ CnD (t) value.These values have reacted business from low order to high-order ODUK (OpticalChannelDataUnit, Optical Channel Data Unit-k) map in clock information, wherein, the n in Cn (t) represents the precision of business clock transparent transmission, and n is less, clock quality and precision higher.The process of concrete clock information transparent transmission is: at mapping end, mapping block generates these values according to business datum, and is inserted in the overhead data of business; At demapping end, De-mapping module extracts these values, and just can recover the clock frequency of former business by certain means, has namely accomplished the clock transparent transmission of business.
But G.709 do not provide the scheme how producing Cn (t) value, for Low-rate traffic, as STM1, no matter existing technology is utilize Valid (effectively) to count or FIFO (FirstInFirstOut, first-in first-out) water level only can obtain Cn (t) value of n=8, and this has been accurate to byte.The transmission clock shake using this accuracy resumption to go out is excessive, must add that special clock devices is as phase-locked loop, could meet actual application requirement after filter processes.Improve the cost of clock synchronous.
Foregoing, only for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Main purpose of the present invention is the precision improving clock transparent transmission, and then reduces the cost of clock synchronous.
For achieving the above object, the method for a kind of business clock transparent transmission provided by the invention, the method for described business clock transparent transmission comprises the following steps:
When there is business datum and needing to transmit, over-sampling is carried out to described business datum, and obtains the quantity of the effective sampling points of described business datum;
According to the quantity of the effective sampling points of preset algorithm and acquisition, calculate the characterization data that the clock information of described business datum is corresponding;
Described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to described characterization data.
Preferably, described the step that described business datum carries out over-sampling to be comprised:
Obtain the service rate of described business datum, and according to the multiple of described service rate determination over-sampling;
According to the over-sampling multiple determined, over-sampling is carried out to described business datum.
Preferably, described described characterization data is sent to object equipment, the step obtaining the clock information of described business datum for described object equipment according to described characterization data comprises:
Described characterization data is added in the overhead data of described business datum;
Overhead data after adding described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to the overhead data adding described characterization data.
Preferably, the step of the quantity of the described business datum effective sampling points of described acquisition comprises:
Determine the ODU type that described business datum is corresponding, and obtain ODU frame period corresponding to the ODU type determined;
Obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.
Preferably, described characterization data comprises the first data and the second data, and the method for described business clock transparent transmission also comprises step:
Business datum corresponding for described first data is sent to described object equipment;
Obtain the business datum that described second data are corresponding, after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged, be sent to described object equipment.
In addition, for achieving the above object, the present invention also provides a kind of device of business clock transparent transmission, and the device of described business clock transparent transmission comprises:
Over-sampling module, for when there is business datum and needing to transmit, carries out over-sampling to described business datum;
Acquisition module, for obtaining the quantity of the effective sampling points of described business datum;
Computing module, for the quantity of the effective sampling points according to preset algorithm and acquisition, calculates the characterization data that the clock information of described business datum is corresponding;
Sending and receiving module, for described characterization data is sent to object equipment, obtains the clock information of described business datum according to described characterization data for described object equipment.
Preferably, described acquisition module, also for:
Obtain the service rate of described business datum;
Described over-sampling module, also for the multiple according to described service rate determination over-sampling; According to the over-sampling multiple determined, over-sampling is carried out to described business datum.
Preferably, the device of described business clock transparent transmission also comprises: processing module,
Described processing module, for being added in the overhead data of described business datum by described characterization data;
Described sending and receiving module, also for the overhead data after the described characterization data of interpolation is sent to object equipment, obtains the clock information of described business datum according to the overhead data adding described characterization data for described object equipment.
Preferably, described acquisition module, also for:
Determine the ODU type that described business datum is corresponding; Obtain the ODU frame period that the ODU type determined is corresponding; Obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.
Preferably, the device of described business clock transparent transmission also comprises merging module,
Described sending and receiving module, also for business datum corresponding for described first data is sent to described object equipment;
Described acquisition module, also for obtaining business datum corresponding to described second data;
Described merging module, is sent to described object equipment by sending and receiving module after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged.
The present invention is by carrying out over-sampling to business datum, obtain the Bit information of described business datum, and get the quantity of the effective sampling points of described business datum, the characterization data of clock information corresponding to described business datum is obtained according to the quantity (being accurate to Bit) of the effective sampling points obtained, described characterization data is sent to object equipment, to realize described business datum clock transparent transmission.By adopting over-sampling and realizing clock transparent transmission to be accurate to Bit to the mode that effective sampling points after over-sampling counts, shake after reducing clock transparent transmission, improve the precision of clock transparent transmission, clock after transparent transmission directly can meet application request, and then reduces the cost of clock synchronous.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the first embodiment of the method for business clock transparent transmission of the present invention;
Fig. 2 is the schematic flow sheet of the second embodiment of the method for business clock transparent transmission of the present invention;
Fig. 3 is the high-level schematic functional block diagram of the first embodiment of the device of business clock transparent transmission of the present invention;
Fig. 4 is the high-level schematic functional block diagram of the second embodiment of the device of business clock transparent transmission of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of method of business clock transparent transmission.
With reference to the schematic flow sheet that Fig. 1, Fig. 1 are the first embodiment of the method for business clock transparent transmission of the present invention.
In one embodiment, the method for described business clock transparent transmission comprises:
Step S10, when there is business datum and needing to transmit, carries out over-sampling to described business datum, and obtains the quantity of the effective sampling points of described business datum;
Described business datum comprises low-speed service data and high speed business data, is preferably low-speed service data in the present embodiment.The main body of execution technical solution of the present invention can be the equipment in optical communication network, also can be the control appliance etc. that the business datum controlled in optical communication network transmits.Be preferably the equipment (using " equipment " as follow-up description in the description below the present invention) in optical communication network in the present embodiment.When there is business datum and needing to transmit, namely in optical communication network, according to service needed, equipment exist business datum need transmit time, over-sampling is carried out to described business datum, namely get Bit (bit) information of described business datum, and obtain the quantity of the effective sampling points of described business datum, namely get effective Bit information that described business datum is corresponding.The quantity of effective sampling points obtained be G.709 in agreement for representing the Cn (t) of clock information, and after over-sampling, the n=1 in described Cn (t), namely clock information has been accurate to Bit.
Described equipment is previously stored with over-sampling mode corresponding to each service rate, is namely previously stored with the corresponding relation of service rate and over-sampling multiple, can stores in the form of a list.Described equipment comprises the process that described business datum carries out over-sampling: obtain the service rate that described business datum is corresponding, and according to the multiple of described service rate determination over-sampling, carries out over-sampling according to the over-sampling multiple determined to described business datum.Such as, the multiple of over-sampling comprises 4 times, the mode such as 8 times of over-samplings.The process that described equipment obtains the quantity of the effective sampling points of described business datum comprises: described equipment determines the ODU type that described business datum is corresponding, and obtain ODU frame period corresponding to the ODU type determined, obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.Described ODU type comprises ODU0, ODU1, ODU2 etc., different and carry out the division of ODU type according to the speed of business datum.Concrete sampling process can be that the business datum after over-sampling is input to logical internal by described equipment, the Bit of described business datum there will be repetition, such as, when taking 4 times of over-samplings to described business datum, the situation of sample error is there will be at adjacent Bit, this mistake can occur in the position of Bit reversion, therefore, is invalid in the business datum of the position of reversion.Reverse simultaneously and also include the rate information of data Bit, reversion illustrates that the speed of former serial data stream is faster sooner.So utilize the mask reversing and pre-set can judge have how many Bit to be effective in the business datum of each bat over-sampling, the quantity of the effective sampling points of described business datum can be got.
Step S20, according to the quantity of the effective sampling points of preset algorithm and acquisition, calculates the characterization data that the clock information of described business datum is corresponding;
In the present embodiment, described equipment is carrying out over-sampling to described business datum, and when obtaining the quantity of the effective sampling points of described business datum, according to the quantity of the effective sampling points of preset algorithm and acquisition, calculate the characterization data that the clock information of described business datum is corresponding.Described preset algorithm is divided by 8 by the quantity of the effective sampling points of acquisition.The quantity of described equipment to the effective sampling points obtained processes: the quantity of the effective sampling points of acquisition is obtained quotient and the remainder divided by 8, and described quotient and the remainder are characterization data.Described characterization data comprises the first data and the second data, and described first data are business in the present embodiment, and described second data are remainder.Described first data and described second data are respectively the Cm (t) and ∑ CnD (t) that represent clock information in G.709 agreement.I.e. described Cm (t) be business value, the value that described ∑ CnD (t) is remainder.
Step S30, is sent to object equipment by described characterization data, obtains the clock information of described business datum for described object equipment according to described characterization data.
Described characterization data, when the characterization data that the clock information calculating described business datum is corresponding, is sent to object equipment by described equipment, obtains the clock information of described business datum for described object equipment according to described characterization data.Such as, the Cm (t) and ∑ CnD (t) that represent clock information in G.709 agreement are sent to object equipment.Described object equipment obtains the clock information of described business datum process according to described characterization data comprises: if described characterization data is for Cm (t) and ∑ CnD (t), then described object equipment extracts Cm (t) value and ∑ CnD (t) value from the characterization data received.According to formula Cn (t)=8Cm (t)+∑ CnD (t), calculate Cn (t) value, according to Cn (t), frequency division is carried out to the Valid based on Bit of ODU type, obtain the clock that accuracy is the described business datum of Bit.Namely the clock transparent transmission of described business datum is achieved, synchronous by described object equipment clock and described equipment.
Further, in order to transmit described characterization data, described characterization data is added in the overhead data of described business datum by described equipment; Overhead data after adding described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to the overhead data adding described characterization data.
The present embodiment is by carrying out over-sampling to business datum, obtain the Bit information of described business datum, and get the quantity of the effective sampling points of described business datum, the characterization data of clock information corresponding to described business datum is obtained according to the quantity (being accurate to Bit) of the effective sampling points obtained, described characterization data is sent to object equipment, to realize described business datum clock transparent transmission.By adopting over-sampling and realizing clock transparent transmission to be accurate to Bit to the mode that effective sampling points after over-sampling counts, shake after reducing clock transparent transmission, improve the precision of clock transparent transmission, clock after transparent transmission directly can meet application request, and then reduces the cost of clock synchronous.
With reference to the schematic flow sheet that Fig. 2, Fig. 2 are the second embodiment of the method for business clock transparent transmission of the present invention.Based on the first embodiment of the method for above-mentioned business clock transparent transmission, described characterization data comprises the first data and the second data, and the method for described business clock transparent transmission also comprises step:
Step S40, is sent to described object equipment by business datum corresponding for described first data;
Step S50, obtains the business datum that described second data are corresponding, is sent to described object equipment after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged.
In the present embodiment, on the data path in optical communication network, the bit wide of logical internal transmission data is minimum is 8 (8bit), i.e. a byte.Described equipment, in the quantity of the effective sampling points according to preset algorithm and acquisition, when calculating characterization data corresponding to the clock information of described business datum, gets described first data and described second data from described characterization data.In G.709 agreement, described characterization data is for Cm (t) and ∑ CnD (t), and wherein said first data are the value of Cm (t), and described second data are the value of ∑ CnD (t).Business datum corresponding to described first data is the data of complete bytes, and therefore, described equipment directly can be sent to described object equipment; And the inadequate byte of business datum that described second data are corresponding, described equipment directly cannot be sent to described object equipment, therefore, described equipment obtains business datum corresponding to described second data, is sent to described object equipment after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged.Namely described equipment obtains business datum corresponding with the second data in this frame business datum current, is sent to described object equipment after the business datum obtained being merged with part corresponding with its (next frame business datum) second data in next frame business datum.Concrete process can be: if the business datum still inadequate byte after merging, then the business datum after merging is merged with part corresponding with its second data in lower next frame business datum and transmit again, namely until business datum corresponding to the second data meets transmits when requiring (being a complete bytes), business datum corresponding for the second data is sent to described object equipment by side; If the business datum after merging is greater than a byte, then transmit forming a byte with this frame business datum current in this frame business datum current and next frame business datum, part unnecessary in next frame business datum transmits with lower next frame data.Such as, second data of this frame business datum current are 4, representing business datum corresponding to current service data second data is 4Bit, second data of next frame business datum are 3, representing business datum corresponding to next frame business datum second data is 3Bit, both be only also 7Bit after merging, and the inadequate byte needs part corresponding with the second data of lower next frame business datum merges and transmit, and transmits after gathering enough a byte (8Bit).Again such as, second data of this frame business datum current are 4, representing business datum corresponding to current service data second data is 4Bit, second data of next frame business datum are 5, representing business datum corresponding to next frame business datum second data is 5Bit, both are only also 9Bit after merging, before the business datum extraction that next frame business datum second data are corresponding, the 4Bit data of 4Bit data and these frame data current are sent to described object equipment after merging, and those remaining for next frame business datum 1Bit data and lower next frame business datum are merged.Described object equipment, according to the characterization data transmitted, gets the distribution of the business datum of transmission, namely can obtain each complete frame business datum according to the distribution of the business datum obtained.In the present embodiment, be incorporated in next frame data by the business datum that can not directly transmit and carry out combination transmission, ensure that the completing property of business datum, improve the reliability of service delivery.
The present invention further provides a kind of device of business clock transparent transmission.
With reference to the high-level schematic functional block diagram that Fig. 3, Fig. 3 are the first embodiment of the device of business clock transparent transmission of the present invention.
In one embodiment, the device of described business clock transparent transmission comprises: over-sampling module 10, acquisition module 20, computing module 30, sending and receiving module 40 and processing module 50.
Described over-sampling module 10, for when there is business datum and needing to transmit, carries out over-sampling to described business datum;
Described acquisition module 20, for obtaining the quantity of the effective sampling points of described business datum;
Described business datum comprises low-speed service data and high speed business data, is preferably low-speed service data in the present embodiment.When there is business datum and needing to transmit, namely in optical communication network, according to service needed, equipment exist business datum need transmit time, over-sampling is carried out to described business datum, namely get the Bit information of described business datum, and obtain the quantity of the effective sampling points of described business datum, namely get effective Bit information that described business datum is corresponding.The quantity of effective sampling points obtained be G.709 in agreement for representing the Cn (t) of clock information, and after over-sampling, the n=1 in described Cn (t), namely clock information has been accurate to Bit.
Described equipment is previously stored with over-sampling mode corresponding to each service rate, is namely previously stored with the corresponding relation of service rate and over-sampling multiple, can stores in the form of a list.Described equipment comprises the process that described business datum carries out over-sampling: obtain the service rate that described business datum is corresponding, and according to the multiple of described service rate determination over-sampling, carries out over-sampling according to the over-sampling multiple determined to described business datum.Such as, the multiple of over-sampling comprises 4 times, the mode such as 8 times of over-samplings.The process that described equipment obtains the quantity of the effective sampling points of described business datum comprises: described equipment determines the ODU type that described business datum is corresponding, and obtain ODU frame period corresponding to the ODU type determined, obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.Described ODU type comprises ODU0, ODU1, ODU2 etc., different and carry out the division of ODU type according to the speed of business datum.Concrete sampling process can be that the business datum after over-sampling is input to logical internal by described equipment, the Bit of described business datum there will be repetition, such as, when taking 4 times of over-samplings to described business datum, the situation of sample error is there will be at adjacent Bit, this mistake can occur in the position of Bit reversion, therefore, is invalid in the business datum of the position of reversion.Reverse simultaneously and also include the rate information of data Bit, reversion illustrates that the speed of former serial data stream is faster sooner.So utilize the mask reversing and pre-set can judge have how many Bit to be effective in the business datum of each bat over-sampling, the quantity of the effective sampling points of described business datum can be got.
Described computing module 30, for the quantity of the effective sampling points according to preset algorithm and acquisition, calculates the characterization data that the clock information of described business datum is corresponding;
In the present embodiment, described equipment is carrying out over-sampling to described business datum, and when obtaining the quantity of the effective sampling points of described business datum, according to the quantity of the effective sampling points of preset algorithm and acquisition, calculate the characterization data that the clock information of described business datum is corresponding.Described preset algorithm is divided by 8 by the quantity of the effective sampling points of acquisition.The quantity of described equipment to the effective sampling points obtained processes: the quantity of the effective sampling points of acquisition is obtained quotient and the remainder divided by 8, and described quotient and the remainder are characterization data.Described characterization data comprises the first data and the second data, and described first data are business in the present embodiment, and described second data are remainder.Described first data and described second data are respectively the Cm (t) and ∑ CnD (t) that represent clock information in G.709 agreement.I.e. described Cm (t) be business value, the value that described ∑ CnD (t) is remainder.
Described sending and receiving module 40, for described characterization data is sent to object equipment, obtains the clock information of described business datum according to described characterization data for described object equipment.
Described characterization data, when the characterization data that the clock information calculating described business datum is corresponding, is sent to object equipment by described equipment, obtains the clock information of described business datum for described object equipment according to described characterization data.Such as, the Cm (t) and ∑ CnD (t) that represent clock information in G.709 agreement are sent to object equipment.Described object equipment obtains the clock information of described business datum process according to described characterization data comprises: if described characterization data is for Cm (t) and ∑ CnD (t), then described object equipment extracts Cm (t) value and ∑ CnD (t) value from the characterization data received.According to formula Cn (t)=8Cm (t)+∑ CnD (t), calculate Cn (t) value, according to Cn (t), frequency division is carried out to the Valid based on Bit of ODU type, obtain the clock that accuracy is the described business datum of Bit.Namely the clock transparent transmission of described business datum is achieved, synchronous by described object equipment clock and described equipment.
Further, in order to transmit described characterization data, described processing module 50, for being added in the overhead data of described business datum by described characterization data; Overhead data after adding described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to the overhead data adding described characterization data.
The present embodiment is by carrying out over-sampling to business datum, obtain the Bit information of described business datum, and get the quantity of the effective sampling points of described business datum, the characterization data of clock information corresponding to described business datum is obtained according to the quantity (being accurate to Bit) of the effective sampling points obtained, described characterization data is sent to object equipment, to realize described business datum clock transparent transmission.By adopting over-sampling and realizing time clock tracking after transparent transmission to be accurate to Bit by the precision of transmission clock to the mode that effective sampling points after over-sampling counts, shake after reducing clock transparent transmission, improve the quality of clock after transparent transmission, clock after transparent transmission directly can meet application request, and then reduces the cost of clock synchronous.
With reference to the high-level schematic functional block diagram that Fig. 4, Fig. 4 are the second embodiment of the device of business clock transparent transmission of the present invention.The device of described business clock transparent transmission also comprises: merge module 60.
Described sending and receiving module 40, is also sent to described object equipment by business datum corresponding for described first data;
Described acquisition module 20, also for obtaining business datum corresponding to described second data;
Described merging module 60, is sent to described object equipment by sending and receiving module 40 after the part of corresponding with next frame business datum for the business number of acquisition the second data being merged.
In the present embodiment, on the data path in optical communication network, the bit wide of logical internal transmission data is minimum is 8 (8bit), i.e. a byte.Described equipment, in the quantity of the effective sampling points according to preset algorithm and acquisition, when calculating characterization data corresponding to the clock information of described business datum, gets described first data and described second data from described characterization data.In G.709 agreement, described characterization data is for Cm (t) and ∑ CnD (t), and wherein said first data are the value of Cm (t), and described second data are the value of ∑ CnD (t).Business datum corresponding to described first data is the data of complete bytes, and therefore, described equipment directly can be sent to described object equipment; And the inadequate byte of business datum that described second data are corresponding, described equipment directly cannot be sent to described object equipment, therefore, described equipment obtains business datum corresponding to described second data, is sent to described object equipment after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged.Namely described equipment obtains business datum corresponding with the second data in this frame business datum current, is sent to described object equipment after the business datum obtained being merged with part corresponding with its (next frame business datum) second data in next frame business datum.Concrete process can be: if the business datum still inadequate byte after merging, then the business datum after merging is merged with part corresponding with its second data in lower next frame business datum and transmit again, namely until business datum corresponding to the second data meets transmits when requiring (being a complete bytes), business datum corresponding for the second data is sent to described object equipment by side; If the business datum after merging is greater than a byte, then transmit forming a byte with this frame business datum current in this frame business datum current and next frame business datum, part unnecessary in next frame business datum transmits with lower next frame data.Such as, second data of this frame business datum current are 4, representing business datum corresponding to current service data second data is 4Bit, second data of next frame business datum are 3, representing business datum corresponding to next frame business datum second data is 3Bit, both be only also 7Bit after merging, and the inadequate byte needs part corresponding with the second data of lower next frame business datum merges and transmit, and transmits after gathering enough a byte (8Bit).Again such as, second data of this frame business datum current are 4, representing business datum corresponding to current service data second data is 4Bit, second data of next frame business datum are 5, representing business datum corresponding to next frame business datum second data is 5Bit, both are only also 9Bit after merging, before the business datum extraction that next frame business datum second data are corresponding, the 4Bit data of 4Bit data and these frame data current are sent to described object equipment after merging, and those remaining for next frame business datum 1Bit data and lower next frame business datum are merged.Described object equipment, according to the characterization data transmitted, gets the distribution of the business datum of transmission, namely can obtain each complete frame business datum according to the distribution of the business datum obtained.In the present embodiment, be incorporated in next frame data by the business datum that can not directly transmit and carry out combination transmission, ensure that the completing property of business datum, improve the reliability of service delivery.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as flash memory/internal memory, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a method for business clock transparent transmission, is characterized in that, the method for described business clock transparent transmission comprises the following steps:
When there is business datum and needing to transmit, over-sampling is carried out to described business datum, and obtains the quantity of the effective sampling points of described business datum;
According to the quantity of the effective sampling points of preset algorithm and acquisition, calculate the characterization data that the clock information of described business datum is corresponding;
Described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to described characterization data.
2. the method for business clock transparent transmission as claimed in claim 1, is characterized in that, describedly comprises the step that described business datum carries out over-sampling:
Obtain the service rate of described business datum, and according to the multiple of described service rate determination over-sampling;
According to the over-sampling multiple determined, over-sampling is carried out to described business datum.
3. the method for business clock transparent transmission as claimed in claim 2, is characterized in that, described described characterization data is sent to object equipment, and the step obtaining the clock information of described business datum for described object equipment according to described characterization data comprises:
Described characterization data is added in the overhead data of described business datum;
Overhead data after adding described characterization data is sent to object equipment, obtains the clock information of described business datum for described object equipment according to the overhead data adding described characterization data.
4. the method for the business clock transparent transmission as described in any one of claims 1 to 3, is characterized in that, the step of the quantity of the described business datum effective sampling points of described acquisition comprises:
Determine the ODU type that described business datum is corresponding, and obtain ODU frame period corresponding to the ODU type determined;
Obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.
5. the method for the business clock transparent transmission as described in any one of claims 1 to 3, is characterized in that, described characterization data comprises the first data and the second data, and the method for described business clock transparent transmission also comprises step:
Business datum corresponding for described first data is sent to described object equipment;
Obtain the business datum that described second data are corresponding, after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged, be sent to described object equipment.
6. a device for business clock transparent transmission, is characterized in that, the device of described business clock transparent transmission comprises:
Over-sampling module, for when there is business datum and needing to transmit, carries out over-sampling to described business datum;
Acquisition module, for obtaining the quantity of the effective sampling points of described business datum;
Computing module, for the quantity of the effective sampling points according to preset algorithm and acquisition, calculates the characterization data that the clock information of described business datum is corresponding;
Sending and receiving module, for described characterization data is sent to object equipment, obtains the clock information of described business datum according to described characterization data for described object equipment.
7. the device of business clock transparent transmission as claimed in claim 6, is characterized in that, described acquisition module, also for:
Obtain the service rate of described business datum;
Described over-sampling module, also for the multiple according to described service rate determination over-sampling; According to the over-sampling multiple determined, over-sampling is carried out to described business datum.
8. the device of business clock transparent transmission as claimed in claim 7, it is characterized in that, the device of described business clock transparent transmission also comprises: processing module,
Described processing module, for being added in the overhead data of described business datum by described characterization data;
Described sending and receiving module, also for the overhead data after the described characterization data of interpolation is sent to object equipment, obtains the clock information of described business datum according to the overhead data adding described characterization data for described object equipment.
9. the device of the business clock transparent transmission as described in any one of claim 6 to 8, is characterized in that, described acquisition module, also for:
Determine the ODU type that described business datum is corresponding; Obtain the ODU frame period that the ODU type determined is corresponding; Obtain the quantity of the effective sampling points of described business datum in the described ODU frame period.
10. the device of the business clock transparent transmission as described in any one of claim 6 to 8, is characterized in that, the device of described business clock transparent transmission also comprises merging module,
Described sending and receiving module, also for business datum corresponding for described first data is sent to described object equipment;
Described acquisition module, also for obtaining business datum corresponding to described second data;
Described merging module, is sent to described object equipment by sending and receiving module after the part of corresponding with next frame business datum for the business datum of acquisition the second data being merged.
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| CN201410282726.9A CN105323053B (en) | 2014-06-23 | 2014-06-23 | The method and device of business clock transparent transmission |
| PCT/CN2014/088576 WO2015196637A1 (en) | 2014-06-23 | 2014-10-14 | Method and apparatus for service clock passthrough |
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| CN201410282726.9A CN105323053B (en) | 2014-06-23 | 2014-06-23 | The method and device of business clock transparent transmission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786299A (en) * | 2016-08-25 | 2018-03-09 | 华为技术有限公司 | A kind of method, apparatus and network system for sending and receiving business |
| CN108347317A (en) * | 2017-01-22 | 2018-07-31 | 华为技术有限公司 | A kind of transmission method of business, the network equipment and network system |
| CN114157383A (en) * | 2021-12-03 | 2022-03-08 | 安徽皖通邮电股份有限公司 | Cm clock recovery algorithm, system, storage medium and equipment based on FPGA |
| CN115941120A (en) * | 2023-01-10 | 2023-04-07 | 北京东远润兴科技有限公司 | Data synchronization method, device, equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489157A (en) * | 2009-02-13 | 2009-07-22 | 华为技术有限公司 | Method and apparatus for mapping service integration onto optical channel delivery unit |
| CN102480415A (en) * | 2010-11-26 | 2012-05-30 | 中兴通讯股份有限公司 | Method and device for recovering optical transport network clock by reference clock |
| CN102761792A (en) * | 2011-04-27 | 2012-10-31 | 中兴通讯股份有限公司 | GMP mapping device and method in OTNs |
| US20130188964A1 (en) * | 2012-01-19 | 2013-07-25 | Ciena Corporation | Transparent timing of a stratum synchronized ethernet signal using standard optical tranport network rates |
| CN103384178A (en) * | 2012-05-02 | 2013-11-06 | 中兴通讯股份有限公司 | ODU frame-like mapping method and device |
-
2014
- 2014-06-23 CN CN201410282726.9A patent/CN105323053B/en active Active
- 2014-10-14 WO PCT/CN2014/088576 patent/WO2015196637A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101489157A (en) * | 2009-02-13 | 2009-07-22 | 华为技术有限公司 | Method and apparatus for mapping service integration onto optical channel delivery unit |
| CN102480415A (en) * | 2010-11-26 | 2012-05-30 | 中兴通讯股份有限公司 | Method and device for recovering optical transport network clock by reference clock |
| CN102761792A (en) * | 2011-04-27 | 2012-10-31 | 中兴通讯股份有限公司 | GMP mapping device and method in OTNs |
| US20130188964A1 (en) * | 2012-01-19 | 2013-07-25 | Ciena Corporation | Transparent timing of a stratum synchronized ethernet signal using standard optical tranport network rates |
| CN103384178A (en) * | 2012-05-02 | 2013-11-06 | 中兴通讯股份有限公司 | ODU frame-like mapping method and device |
Non-Patent Citations (1)
| Title |
|---|
| 周振安等: "《数据采集系统的设计与实践》", 31 July 2005, 北京：地震出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786299A (en) * | 2016-08-25 | 2018-03-09 | 华为技术有限公司 | A kind of method, apparatus and network system for sending and receiving business |
| US11140079B2 (en) | 2016-08-25 | 2021-10-05 | Huawei Technologies Co., Ltd. | Service sending method and apparatus, service receiving method and apparatus, and network system |
| CN108347317A (en) * | 2017-01-22 | 2018-07-31 | 华为技术有限公司 | A kind of transmission method of business, the network equipment and network system |
| CN108347317B (en) * | 2017-01-22 | 2020-11-10 | 华为技术有限公司 | Service transmission method, network equipment and network system |
| US11223438B2 (en) | 2017-01-22 | 2022-01-11 | Huawei Technologies Co., Ltd. | Service transmission method, network device, and network system |
| CN114157383A (en) * | 2021-12-03 | 2022-03-08 | 安徽皖通邮电股份有限公司 | Cm clock recovery algorithm, system, storage medium and equipment based on FPGA |
| CN114157383B (en) * | 2021-12-03 | 2023-04-28 | 安徽皖通邮电股份有限公司 | Cm clock recovery algorithm, system, storage medium and equipment based on FPGA |
| CN115941120A (en) * | 2023-01-10 | 2023-04-07 | 北京东远润兴科技有限公司 | Data synchronization method, device, equipment and storage medium |
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| Publication number | Publication date |
|---|---|
| CN105323053B (en) | 2019-11-05 |
| WO2015196637A1 (en) | 2015-12-30 |
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