CN102257799B - Signal sending method, device and communication device used for measuring circuit - Google Patents
Signal sending method, device and communication device used for measuring circuit Download PDFInfo
- Publication number
- CN102257799B CN102257799B CN201180001036.6A CN201180001036A CN102257799B CN 102257799 B CN102257799 B CN 102257799B CN 201180001036 A CN201180001036 A CN 201180001036A CN 102257799 B CN102257799 B CN 102257799B
- Authority
- CN
- China
- Prior art keywords
- circuit
- activated
- signal
- noise protection
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 title claims abstract description 13
- 238000009432 framing Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 58
- 238000005259 measurement Methods 0.000 claims description 28
- 230000011664 signaling Effects 0.000 claims description 21
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 10
- 230000004913 activation Effects 0.000 description 2
- 102400001284 Vessel dilator Human genes 0.000 description 1
- 101800001899 Vessel dilator Proteins 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
- H04M3/304—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using xDSL modems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/487—Testing crosstalk effects
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Dc Digital Transmission (AREA)
Abstract
The embodiment of the invention provides a signal sending method, device and a communication device used for measuring circuit. The method comprises the steps of: collecting framing parameters corresponding to signals transmitted on a plurality of activated xDSL circuits; calculating pulse noise protection parameters corresponding to each activated circuit according to the framing parameters, and determining sending interval of sending measuring signals and the number of the measuring signals sent in the sending interval according to the pulse noise protection parameters; and sending the number of the measuring signals to each activated circuit with the determined sending intervals. According to the embodiment of the invention, the measuring signals are sent at intervals such that the crosstalk generated by the measuring signals appear interruptedly, and therefore the characteristic that the xDSL technology supports pulse noise protection can be utilized to decrease the influence of the crosstalk to other circuits.
Description
Technical field
The present invention relates to data communication field, more specifically, relate to signaling method, device and communication equipment for measurement circuitry.
Background technology
XDSL is to all DSL (Digital Subscriber Line, Digital Subscriber Line) general designation of technology, that one is utilized twisted pair telephone, the Highspeed Data Transmission Technology that UTP (Unshielded Twist Pair, unshielded twisted pair) transmits.Except IDSL is (based on ISDN (Integrated Services Digital Network, integrated services digital network) DSL) and SHDSL (Symmetric High-speed DSL, symmetrical high speed DSL) etc. outside the DSL of baseband transmission, the xDSL of passband transmission utilizes frequency multiplexing technique to make xDSL and POTS (Plain Old Telephone Service, Plain Old Telephone Service) coexist in on a pair of twisted-pair feeder, wherein xDSL occupies high band, and POTS takies the following baseband portion of 4KHz.The xDSL of passband transmission adopts DMT (Discrete Multitone, Discrete multi-tone) modulation.Provide the system of multichannel xDSL signal access to be called DSLAM (DSL Access Multiplexer, DSL couple in multiplexer).
The raising of the frequency band using along with xDSL technology, crosstalks, and especially the cross-interference issue of high band shows to such an extent that become increasingly conspicuous.Crosstalk and be conventionally divided into " near-end cross (NEXT) " and " far-end cross talk (FEXT) " by characteristic.Because xDSL up-downgoing channel adopts frequency division multiplexing, General N EXT can not produce too large harm to systematic function.But FEXT can have a strong impact on the transmission performance of circuit.In the time having multichannel user all to require to open xDSL business in a bundle cable, can, because far-end cross talk (FEXT) makes that some line speeds are low, unstable properties, even can not open etc., finally cause the line activation rate of DSLAM lower.That is to say, the user twisted-pair feeder not all in some office points can normally be opened xDSL business.And the circuit that can not open xDSL business need to carry out malfunction elimination or even thoroughly more bring the xDSL business of opening.The man power and material that this process need is a large amount of, thus the operation cost of operator is significantly improved.
In order effectively to carry out route survey in xDSL system, the technology that one is called SELT (Single Ended Loop Test, single ended line is measured) has been proposed, it measures, checks and locate fault by automatic measurement means to circuit.
But in above-mentioned SELT technology, SELT measuring-signal is generally in wider spectral range and directly sends continuously, thereby transmitted signal will produce and crosstalk near circuit, crosstalk near circuit making is produced to error code, when serious, will go offline.
Summary of the invention
The embodiment of the present invention provides a kind of signaling method for measurement circuitry, device and communication equipment, the impact of crosstalking on other users producing can reduce to send measuring-signal time.
According to the embodiment of the present invention aspect, a kind of signaling method for measurement circuitry is provided, comprising: collect the framing parameter corresponding to the signal transmitting on the circuit in multiple xDSL circuits that activated; According to described framing parameter, calculate the Impulse Noise Protection parameter of the circuit that activated corresponding to each, be identified for sending the transmission interval of measuring-signal and the quantity of the measuring-signal that sends according to described Impulse Noise Protection parameter in described transmission interval; On the circuit having activated at each with determined transmission interval, send the measuring-signal of described quantity.
According to the embodiment of the present invention on the other hand, provide a kind of sender unit for measurement circuitry, having comprised: parameter collection unit, for collecting the framing parameter of the signal transmitting on the circuit corresponding to multiple xDSL circuits that activated; Determining unit, be used for according to described framing parameter, calculate the Impulse Noise Protection parameter of the circuit that activated corresponding to each, be identified for sending the transmission interval of measuring-signal and the quantity of the measuring-signal that sends according to described Impulse Noise Protection parameter in described transmission interval; Measurement data transmitting element, for sending the measuring-signal of described quantity on the circuit having activated at each with determined transmission interval.
According to the embodiment of the present invention on the other hand, provide a kind of communication equipment, comprised the above-mentioned sender unit for measuring-signal.
The quantity of the measuring-signal of the embodiment of the present invention by being identified for sending the transmission interval of measurement data according to pulse Protection parameters and send in described transmission interval; then send the measuring-signal of institute's quantification with determined transmission interval; can realize and send discontinuously measuring-signal, thereby can utilize the Impulse Noise Protection mechanism in xDSL system to reduce the impact of crosstalking on All other routes.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, obviously, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that application is according to the schematic block diagram of the system of the signaling method for measurement circuitry of the embodiment of the present invention;
Fig. 2 is according to the flow chart of the signaling method for measurement circuitry of the embodiment of the present invention;
Fig. 3 determines according to Impulse Noise Protection parameter the schematic diagram of detailed process that sends interval in Fig. 2;
Fig. 4 is the schematic diagram that the number of the symbol diffusing to according to code word in the signal transmitting on described each circuit having activated in Fig. 3 is determined the detailed process that sends interval;
Fig. 5 determines the schematic diagram of the detailed process of the quantity of the measuring-signal sending in described transmission interval according to Impulse Noise Protection parameter in Fig. 2;
Fig. 6 is according to the schematic block diagram of the sender unit for measurement circuitry of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides the signaling method for measurement circuitry.The system of the signaling method for measurement circuitry that the mode application embodiment of the present invention provides first, by way of example.
Fig. 1 is that application is according to the schematic block diagram of the system 10 of the signaling method for measurement circuitry of the embodiment of the present invention.
With reference to figure 1, system 10 comprises DSLAM (DSL Access Multiplexer, DSL couple in multiplexer) 11, described DSLAM 11 comprise multiple port P1, P2 ..., P
n, each port in described multiple ports connects many circuit L
1, L
2..., L
nin one end of a corresponding circuit.Described circuit L
1, L
2..., L
nin the other end and multiple CPE (Customer Premises Equipment, subscriber terminal equipment) 12 of a corresponding circuit
1, CPE 12
2..., CPE 12
nin a corresponding connection, wherein n represents natural number.In system 10, DSLAM 11 sends measuring-signal via corresponding port, and described measuring-signal is transferred to corresponding CPE by corresponding circuit.
Although be described as be at and apply the signaling method for measurement circuitry that the embodiment of the present invention provides in said system at this, but the embodiment of the present invention is not limited to this, for example, above-mentioned DSLAM 11 can be replaced by xTU-C (Transceiver Unit at the Central side, at the transceiver unit of central side).
The specific embodiment of the signaling method for the measurement circuitry below embodiment of the present invention being provided is described in detail.
The signaling method for measurement circuitry that the embodiment of the present invention provides sends SELT measuring-signal discontinuously; thereby the interrupted appearance of crosstalking that SELT measuring-signal is produced; therefore, can utilize the feature of xDSL technical support Impulse Noise Protection to reduce the impact of crosstalking on All other routes.
Fig. 2 is according to the flow chart of the signaling method for measurement circuitry of the embodiment of the present invention.
With reference to figure 2, in step 201, collect the framing parameter corresponding to the signal transmitting on the circuit in multiple xDSL circuits that activated.
Particularly, before sending SELT measuring-signal, first determine the set of the circuit having activated that connects same DSLAM: L
1, L
2..., L
i..., L
n, wherein i is more than or equal to 1 natural number, and N is the number that connects the circuit having activated of same DSLAM.Although be described as in the present embodiment the set of determining the circuit having activated that connects same DSLAM, the embodiment of the present invention is not limited to this, for example, can as required, determine the set of the circuit having activated that connects two or more DSLAM.
Collect the framing parameter corresponding to the signal transmitting on each circuit in set.To those skilled in the art, the method that is collected in the framing parameter of the signal transmitting on circuit is known, is not therefore elaborated at this.
In addition, in xDSL system, framing parameter is the parameter for setting up frame, for example, at VSDL (Very High Speed Digital Subscriber Line, Very-high-speed Digital Subscriber Line) in system, described framing parameter comprises: interleave depth, at a RS (Reed-Solomon, Read-Solomon) redundancy bytes number in code word, the number of the interleaving block comprising at a RS piece, at each DMT (Discrete Multitone, Discrete multi-tone) number of the bit that comprises of symbol, the size of interleaving block, length of a RS code word etc. is (referring to ITU-T Recommendation G993.2, Very high speed digital subscriber line transceivers 2 (VSDL2)).Although mode has been enumerated above-mentioned framing parameter by way of example in the present embodiment, but the embodiment of the present invention is not limited to this, for example, except above-named parameter, the embodiment of the present invention can also comprise other framing parameter, or also can not comprise above-mentioned framing parameter, that is to say, can increase as required or reduce the framing parameter adopting.
In step 202; according to framing parameter; calculate corresponding to the Impulse Noise Protection parameter of described each circuit having activated, be identified for sending the transmission interval Q of measuring-signal and the quantity P of the measuring-signal that sends according to described Impulse Noise Protection parameter in described transmission interval.
In xDSL system; the error correcting capability of the signal transmitting on described Impulse Noise Protection Parametric Representation circuit; can utilize the number of the symbol that can be corrected a mistake completely by error correcting code in a certain size the continuous symbol in signal to represent (referring to ITU-T Recommendation G993.2, Very high speed digital subscriber line transceivers 2 (VSDL2)).
In actual applications, the NEXT signal that SELT measuring-signal produces is smaller on adjacent lines impact, therefore, can only calculate descending Impulse Noise Protection parameter.
Can calculate in several ways Impulse Noise Protection parameter.For example, in VDSL system, can calculate according to following formula (1) the Impulse Noise Protection parameter I NP_no_erasure (i) of the circuit having activated corresponding to each:
Wherein, i represents line number;
D
p(i) represent interleave depth;
R
p(i) be illustrated in a redundancy bytes number in RS code word;
Q
p(i) be illustrated in the number of the interleaving block that a RS piece comprises;
L
p(i) be illustrated in the number of the bit that each DMT symbol comprises;
I
p(i) size of expression interleaving block;
represent the length of a RS code word.
In addition, in xDSL communication system, in order to strengthen the antijamming capability of data to error burst, conventionally before transmission, with interleaving technology, a RS code word is diffused in multiple DMT symbols, for example, in VDSL system, can calculate in the signal transmitting on the circuit having activated at each according to following formula (2) the amount R S_Expend (i) of the symbol that a RS code word diffuses to:
Wherein, i, the L in formula (2)
p(i), I
pand D (i)
p(i) identical with formula (1), therefore no longer repeat specification.
By formula (2) substitution formula (1), can obtain formula (3) below:
In above-mentioned formula; INP_no_erasure (i) represents the Impulse Noise Protection parameter corresponding to the circuit i having activated; the quantity of the symbol that in the signal of the upper transmission of the circuit i that activated described in RS_Expend (i) is illustrated in, RS code word diffuses to, R
p(i)/2 represent a byte number that RS code word can be corrected a mistake,
represent the length of a code word; as can be seen from above; in xDSL system; Impulse Noise Protection parameter can be illustrated in the symbol that a code word diffuses to; in the time there is impulse noise interference, the number of the symbol that can be corrected a mistake completely by error correcting code, therefore; according to Impulse Noise Protection parameter, the number of the symbol that can diffuse to according to a code word is identified for sending the transmission interval of measuring-signal.At this, described transmission interval is represented by the number of symbol, but the embodiment of the present invention is not limited to this, and for example, described transmission interval also can represent by time span, and this can come to determine as required.
Fig. 3 determines according to Impulse Noise Protection parameter the schematic diagram of detailed process that sends interval in Fig. 2.
With reference to figure 3, in step 301, according to framing parameter, calculate in the signal that transmits the number of the symbol that a code word diffuses on described each circuit having activated.As mentioned above, can carry out the calculating of step 301 according to formula (2).
In step 302, be identified for sending the transmission interval of measuring-signal according to described number.
Fig. 4 is the schematic diagram that the number of the symbol diffusing to according to code word in the signal transmitting on described each circuit having activated in Fig. 3 is determined the detailed process that sends interval.
With reference to figure 4, in step 401, determine in the signal transmitting the maximum number RS_Expend_max in the middle of the number of the symbol that a code word is diffused on the circuit having activated at each calculating.
The process of above-mentioned definite maximum number RS_Expend_max can be expressed as:
Wherein, i represents line number, and N represents the number of the circuit having activated.
In step 402, transmission interval is defined as being more than or equal to described maximum number.
The process at above-mentioned definite transmission interval can be expressed as:
Q≥RS_Expend_max...(5)。
Fig. 5 determines the schematic diagram of the detailed process of the quantity of the measuring-signal sending in described transmission interval according to Impulse Noise Protection parameter in Fig. 2.
With reference to figure 5, in step 501, determine the minimum pulse Protection parameters INP_no_erasure_min in the middle of the Impulse Noise Protection parameter calculating, the process of above-mentioned definite minimum pulse Protection parameters can be expressed as:
Wherein, i represents line number, and N represents the number of the circuit having activated.
In step 502, determine whether INP_no_erasure_min is greater than 1, be greater than at 1 o'clock at INP_no_erasure_min, in step 503, by be defined as at the quantity P that sends the measuring-signal sending in the Q of interval 1 and (INP_no_erasure_min-1) between value, be not more than at 1 o'clock at INP_no_erasure_min, in step 504, will be defined as 1 at the quantity P that sends the measuring-signal sending in the Q of interval.The process of the above-mentioned quantity P that determines the measuring-signal sending in transmission interval Q can be expressed as:
Although this be described as the scope of described quantity P to be defined as 1 and (minimum pulse Protection parameters-1) between scope; but the embodiment of the present invention is not limited to this; for example; also the scope of described quantity P can be defined as 1 and minimum pulse Protection parameters INP_no_erasure_min between scope; or also can the scope of described quantity P be defined as 1 and be less than the scope between the value of (INP_no_erasure_min-1); aforesaid way can be realized the embodiment of the present invention, is only reached performance difference.
Return to Fig. 2, in step 203, on the circuit having activated at each with determined transmission interval Q, send the measuring-signal of described quantity P.
In the present embodiment, send interval Q and can get fixed value, send periodically measuring-signal, sending interval Q also can change, for example, transmission in the time sending is for the first time spaced apart Q1, and the transmission interval in follow-up transmission can be different from Q1, as long as within described transmission interval Q drops on the span at above-mentioned definite transmission interval.In addition, the quantity P of each measuring-signal sending both can fix, and also can change, needed only within quantity P drops on the scope of above-mentioned definite quantity forwarded.
As mentioned above; according to the signaling method for measurement circuitry of the embodiment of the present invention; the SELT measuring-signal that quantity forwarded is P on the circuit having activated in transmission interval Q; and do not send other signals; therefore; for the circuit having activated, even produce crosstalking of the data that are P to quantity in transmission interval Q, also can eliminate these impacts producing of crosstalking by the Impulse Noise Protection mechanism of xDSL system completely.Therefore, compare with traditional SELT measuring technique, the method for the embodiment of the present invention is more reliable.
The sender unit for the measurement circuitry below embodiment of the present invention being provided and the communication equipment that comprises described sender unit are described in detail.
The sender unit for measurement circuitry that the embodiment of the present invention provides sends SELT measuring-signal discontinuously; thereby the interrupted appearance of crosstalking that SELT measuring-signal is produced; therefore, can utilize the feature of xDSL technical support Impulse Noise Protection to reduce the impact of crosstalking on All other routes.
Fig. 6 is according to the schematic block diagram of the sender unit 60 for measurement circuitry of the embodiment of the present invention.
As shown in Figure 6, described sender unit 60 comprises parameter collection unit 61, determining unit 62 and measuring-signal transmitting element 63.
Parameter collection unit 61 is for collecting the framing parameter of the signal transmitting on the circuit corresponding to multiple xDSL circuits that activated.Determining unit 62, for according to described framing parameter, is calculated the Impulse Noise Protection parameter corresponding to the circuit of each activation, determines the quantity of the measuring-signal that sends interval and send in described transmission interval according to described Impulse Noise Protection parameter.Measurement data transmitting element 63 is for sending the measuring-signal of described quantity on the circuit having activated at each with determined transmission interval.
The various piece of described sender unit 60 can be carried out described each process above with reference to Fig. 2 to Fig. 5, for avoiding repetition, repeats no more.
For example, according to the embodiment of the present invention, determining unit 62 is according to Impulse Noise Protection parameter, and the number of the symbol diffusing to according to code word in the signal transmitting on the circuit having activated at each is identified for sending the transmission interval of measuring-signal.
According to the embodiment of the present invention, determining unit 62 is according to described framing parameter, calculates in the signal transmitting on the circuit having activated at each number of the symbol that a code word diffuses to, and determines described transmission interval according to described number.
According to the embodiment of the present invention, determining unit 62 is determined in the signal transmitting on the circuit having activated at each calculating the maximum number in the middle of the number of the symbol that a code word diffuses to, and described transmission interval is defined as being more than or equal to described maximum number.
According to the embodiment of the present invention, determining unit 62 is determined the quantity of the measuring-signal sending in described transmission interval according to following manner: determine the minimum pulse Protection parameters in the middle of the pulse Protection parameters calculating; In the time that described minimum pulse Protection parameters is less than or equal to 1, described quantity is defined as to 1, be greater than at 1 o'clock at described minimum pulse Protection parameters, by described quantity be defined as 1 and (minimum pulse Protection parameters-1) between value.
According to the embodiment of the present invention, determining unit 62 is calculated in the signal transmitting on the Impulse Noise Protection parameter of the circuit having activated corresponding to each and circuit that calculating has activated at each respectively the quantity of the symbol that a code word diffuses to according to formula (1) above and (2).
In addition, according to the embodiment of the present invention, the above-mentioned sender unit for measurement circuitry may be implemented as and covers communication equipment, described communication equipment includes but not limited to DSLAM, can as required the described sender unit for measurement circuitry be covered to other communication equipments.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (15)
1. for a signaling method for measurement circuitry, it is characterized in that, comprising:
Collect the framing parameter corresponding to the signal transmitting on the circuit in multiple xDSL circuits that activated;
According to described framing parameter, calculate the Impulse Noise Protection parameter of the circuit that activated corresponding to each, be identified for sending the transmission interval of measuring-signal and the quantity of the measuring-signal that sends according to described Impulse Noise Protection parameter in described transmission interval;
On the circuit having activated at each with determined transmission interval, send the measuring-signal of described quantity.
2. signaling method as claimed in claim 1; it is characterized in that; the transmission interval that is identified for sending described measuring-signal according to described Impulse Noise Protection parameter comprises: according to described Impulse Noise Protection parameter, the number of the symbol diffusing to according to code word in the signal transmitting on described each circuit having activated is identified for sending the transmission interval of measuring-signal.
3. signaling method as claimed in claim 2; it is characterized in that; according to described Impulse Noise Protection parameter, the transmission interval that the number of the symbol diffusing to according to code word in the signal transmitting on described each circuit having activated is identified for sending measuring-signal comprises:
According to described framing parameter, calculate in the signal that transmits the number of the symbol that a code word diffuses on described each circuit having activated;
Be identified for sending the transmission interval of measuring-signal according to described number.
4. signaling method as claimed in claim 3, is characterized in that, the transmission interval that is identified for sending measuring-signal according to described number comprises:
Determine in the signal transmitting calculating the maximum number in the middle of the number of the symbol that a code word diffuses on described each circuit having activated;
Described transmission interval is defined as being more than or equal to described maximum number.
5. signaling method as claimed in claim 1, is characterized in that, determines that the quantity of the measuring-signal sending in described transmission interval comprises according to described Impulse Noise Protection parameter:
Determine the minimum pulse noise Protection parameters in the middle of the Impulse Noise Protection parameter calculating;
In the time that described minimum pulse noise Protection parameters is less than or equal to 1, described quantity is defined as to 1, be greater than at 1 o'clock at described minimum pulse noise Protection parameters, by described quantity be defined as 1 and (minimum pulse noise Protection parameters-1) between value.
6. signaling method as claimed in claim 1; it is characterized in that, calculate and comprise corresponding to the Impulse Noise Protection parameter of described each circuit having activated: calculate the Impulse Noise Protection parameter I NP_no_erasure (i) corresponding to described each circuit having activated according to following formula:
Wherein, i represents line number;
D
p(i) represent interleave depth;
R
p(i) be illustrated in a redundancy bytes number in RS code word;
Q
p(i) be illustrated in the number of the interleaving block that a RS piece comprises;
L
p(i) be illustrated in the number of the bit that each DMT symbol comprises;
I
p(i) size of expression interleaving block;
represent the length of a RS code word.
7. signaling method as claimed in claim 3, it is characterized in that, the quantity of calculating in the signal that transmits the symbol that a code word diffuses on described each circuit having activated comprises: the amount R S_Expend (i) that determines in the signal transmitting the symbol that a code word diffuses to according to following formula on described each circuit having activated:
Wherein, i represents line number;
L
p(i) be illustrated in the number of the bit that each DMT symbol comprises;
I
p(i) size of expression interleaving block;
D
p(i) represent interleave depth.
8. for a sender unit for measurement circuitry, it is characterized in that, comprising:
Parameter collection unit, for collecting the framing parameter of the signal transmitting on the circuit corresponding to multiple xDSL circuits that activated;
Determining unit, be used for according to described framing parameter, calculate the Impulse Noise Protection parameter of the circuit that activated corresponding to each, be identified for sending the transmission interval of measuring-signal and the quantity of the measuring-signal that sends according to described Impulse Noise Protection parameter in described transmission interval;
Measurement data transmitting element, for sending the measuring-signal of described quantity on the circuit having activated at each with determined transmission interval.
9. sender unit as claimed in claim 8; it is characterized in that; described determining unit is according to described Impulse Noise Protection parameter, the number of the symbol diffusing to according to code word in the signal transmitting on described each circuit having activated determine described in for sending the transmission interval of measuring-signal.
10. sender unit as claimed in claim 9, it is characterized in that, described determining unit is according to described framing parameter, calculates in the signal transmitting on described each circuit having activated the number of the symbol that a code word diffuses to, and determines described transmission interval according to described number.
11. sender units as claimed in claim 10, it is characterized in that, described determining unit is determined in the signal transmitting on described each circuit having activated calculating the maximum number in the middle of the number of the symbol that a code word diffuses to, and described transmission interval is defined as being more than or equal to described maximum number.
12. sender units as claimed in claim 8, is characterized in that, described determining unit is determined the quantity of the measuring-signal sending in described transmission interval according to following manner:
Determine the minimum pulse noise Protection parameters in the middle of the Impulse Noise Protection parameter calculating;
In the time that described minimum pulse noise Protection parameters is less than or equal to 1, described quantity is defined as to 1, be greater than at 1 o'clock at described minimum pulse noise Protection parameters, by described quantity be defined as 1 and (minimum pulse noise Protection parameters-1) between value.
13. sender units as claimed in claim 8, is characterized in that, described determining unit is calculated the Impulse Noise Protection parameter I NP_no_erasure (i) corresponding to described each circuit having activated according to following formula:
Wherein, i represents line number;
D
p(i) represent interleave depth;
R
p(i) be illustrated in a redundancy bytes number in RS code word;
Q
p(i) be illustrated in the number of the interleaving block that a RS piece comprises;
L
p(i) be illustrated in the number of the bit that each DMT symbol comprises;
I
p(i) size of expression interleaving block;
represent the length of a RS code word.
14. sender units as claimed in claim 10, it is characterized in that, described determining unit is determined in the signal transmitting on described each circuit having activated the amount R S_Expend (i) of the symbol that a code word diffuses to according to following formula:
Wherein, i represents line number;
L
p(i) be illustrated in the number of the bit that each DMT symbol comprises;
I
p(i) size of expression interleaving block;
D
p(i) represent interleave depth.
15. 1 kinds of communication equipments, is characterized in that, comprise the sender unit as described in any one in claim 8-14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/075577 WO2012167439A1 (en) | 2011-06-10 | 2011-06-10 | Method, appratus and communication device for signal transmission to measure lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102257799A CN102257799A (en) | 2011-11-23 |
| CN102257799B true CN102257799B (en) | 2014-11-05 |
Family
ID=44983376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180001036.6A Expired - Fee Related CN102257799B (en) | 2011-06-10 | 2011-06-10 | Signal sending method, device and communication device used for measuring circuit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102257799B (en) |
| WO (1) | WO2012167439A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014063309A1 (en) | 2012-10-23 | 2014-05-01 | 华为技术有限公司 | Method and apparatus for sending selt measurement signal and control device |
| EP3041151B1 (en) * | 2013-09-17 | 2017-09-13 | Huawei Technologies Co., Ltd. | Method, device and system for detecting disturbing line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101543031A (en) * | 2007-01-10 | 2009-09-23 | 华为技术有限公司 | Bivariate histogram for impulse noise monitor |
| CN101917264A (en) * | 2001-10-17 | 2010-12-15 | 北方电讯网络有限公司 | In the MC-CDMA system synchronously |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863244B (en) * | 2005-10-28 | 2013-10-02 | 华为技术有限公司 | Method and apparatus for time-domain reflecting measurement of transmission line |
| US7801076B2 (en) * | 2007-05-15 | 2010-09-21 | Infineon Technologies Ag | Allocation of signal-to-noise ratio margin in multi-carrier systems |
| EP1998465A1 (en) * | 2007-05-29 | 2008-12-03 | Nokia Siemens Networks Oy | Method and device for crosstalk evaluation and communication system comprising such device |
| CN101674165A (en) * | 2008-09-09 | 2010-03-17 | 华为技术有限公司 | Method, equipment and system for feeding back signal error in multi-carrier communication system |
-
2011
- 2011-06-10 WO PCT/CN2011/075577 patent/WO2012167439A1/en active Application Filing
- 2011-06-10 CN CN201180001036.6A patent/CN102257799B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917264A (en) * | 2001-10-17 | 2010-12-15 | 北方电讯网络有限公司 | In the MC-CDMA system synchronously |
| CN101543031A (en) * | 2007-01-10 | 2009-09-23 | 华为技术有限公司 | Bivariate histogram for impulse noise monitor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012167439A1 (en) | 2012-12-13 |
| CN102257799A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103004099B (en) | Method, apparatus and system for reducing interference in digital subscriber line | |
| EP1995885B1 (en) | Method and device for obtaining crosstalk information | |
| US9014291B2 (en) | Method and apparatus for analyzing crosstalk between lines | |
| CN102396160A (en) | Method for estimating strength of crosstalk channel | |
| WO2001005135A1 (en) | Method and apparatus for combining voice line card and xdsl line card functions | |
| CN101060512B (en) | OFDM transmission symbol synchronizing method and its system | |
| CN102318302A (en) | Method, apparatus and system of signal processing | |
| US7020101B2 (en) | Method of implementing a repeater, and a transceiver unit | |
| CN102257799B (en) | Signal sending method, device and communication device used for measuring circuit | |
| HUE026208T2 (en) | System for emergency rate adjustment | |
| CN101997796B (en) | Method, device and system for eliminating aliasing noise in multi-carrier-wave modulating system | |
| CN104396149A (en) | Line initialization method, device and system | |
| CN1307816C (en) | DMT system for reducing far end crosstalk | |
| EP2169931B1 (en) | Method and device for data processing and communication system comprising such device | |
| Cioffi et al. | Digital subscriber lines | |
| CN101729094A (en) | Uplink power decreasing method, device and system in digital subscriber lines | |
| EP1851872B1 (en) | Method and device for connecting an additional subscriber to a telephone exchange | |
| CN103229472A (en) | Multiline crosstalk test method, device and system | |
| Magesacher et al. | Adaptive interference cancellation using common-mode information in DSL | |
| CN101588336B (en) | Method, system and device for realizing symbol synchronization | |
| US6963641B1 (en) | Method and apparatus for providing variable attenuation to data signals in an XDSL frequency range | |
| CN102100048A (en) | Method and device for data processing and communication system comprising such device | |
| KR100468836B1 (en) | Method for compensation bridge tap effect and for reducing interference in splitterless ADSL and DSL system | |
| CN101741426A (en) | Method, device and system for enhancing stability of DSL circuit | |
| Cioffi et al. | Digital subscriber line (DSL) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170816 Address after: 519031, Guangdong, Zhuhai province Hengqin financial industry service base building No. 5 2-I Patentee after: The International Intellectual Property Trading Center Co. Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171228 Address after: No. 059, Feng Sheng shop village, quay Town, Anci District, Langfang, Hebei Patentee after: Zhang Fang Address before: 519031, Guangdong, Zhuhai province Hengqin financial industry service base building No. 5 2-I Patentee before: The International Intellectual Property Trading Center Co. Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20180610 |