CN101789856A - Method and device for automatically negotiating long-range Ethernet (LRE) working mode under condition of collineation of LRE and voice - Google Patents
Method and device for automatically negotiating long-range Ethernet (LRE) working mode under condition of collineation of LRE and voice Download PDFInfo
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- CN101789856A CN101789856A CN 201010136664 CN201010136664A CN101789856A CN 101789856 A CN101789856 A CN 101789856A CN 201010136664 CN201010136664 CN 201010136664 CN 201010136664 A CN201010136664 A CN 201010136664A CN 101789856 A CN101789856 A CN 101789856A
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Abstract
The invention provides a method and a device for automatically negotiating a long-range Ethernet (LRE) working mode under the condition of the collineation of an LRE and a voice. The method comprises the following step of: alternating the candidate LRE working mode to communicate with opposite-terminal equipment; if the communication is successful, using the current LRE working mode to communicate with the opposite-terminal equipment to accomplish the negotiation of the LRE working mode; and if the communication is failed, continuously executing the step of alternating the candidate LRE working mode to communicate with the opposite-terminal equipment. The invention realizes the automatic negotiation of the LRE working mode under the condition of collineation of the LRE and the voice when a local distribution service (LDS) can not work.
Description
Technical field
The present invention relates to the communications field, relate in particular to the method and apparatus of consulting the LRE mode of operation under the situation of a kind of LRE and speech conllinear automatically.
Background technology
LRE (Long Range Ethernet, apart from the enhancement mode Ethernet) be a kind of chip-scale ethernet technology of standard, can realize with the seamless upgrade of existing ethernet device and dock: by send, receiving terminal uses this chip simultaneously or the equipment of this chip arranged, LRE can transmit the 10M Ethernet extended distance to 1300 meter on CAT5E UTP cable, the 100M Ethernet is transmitted extended distance to 260 meter on CAT5E UTP cable.
User access networks (from local call office to the part the user) are the important component parts of telecommunications network, are the windows of telecommunications network.The LRE technology is applied to the wiring cost that user access networks can reduce user access networks greatly.With the LRE networking shown in Fig. 1 a is example, the user terminal of LRE communication and local side apparatus (for example switch of network side in the communication network) be opposite equip. each other, user terminal connects local side apparatus by ADSL (Asymmetric Digital Subscriber Line, ADSL (Asymmetric Digital Subscriber Line)) Modem (modulator-demodulator).In the prior art, LRE uses LDS (Link Discovery Signaling, the link discovery signaling) finishes the function of link negotiation, comprise determining of MASTER/SLAVE relation, estimate length of cable, determine that effective twisted-pair feeder logarithm and line to order, determine the peak work capacity that both link ends is all supported.The LDS signaling schemes uses the 1.25MHz signal to come transmission information.
With networking shown in Fig. 1 a is example, in the starting stage, the mutual transmission frequency of user terminal and local side apparatus is the tone pulse of 1.25MHz, shown in Fig. 1 b, the duration of every group of tone pulse is 1.6376ms, the quiet time between two group pulses is 14.3624ms, and the duty ratio of signal is about 10%.To only supporting the equipment of IEEE 802.3 auto-negotiation technology,,, should directly abandon when receiving the signal of this frequency less than 2MHz according to the regulation of the 14.3.1.3.2 among the IEEE 802.3-2003.If equipment is supported the LDS signaling, after receiving tone pulse, should enter the handshaking stage subsequently, as shown in Figure 2, this moment, every group of signal of LDS signaling comprised 2047 pulses, was made up of 1023 tone pulses and 1024 data pulses subsequently of front, tone pulse is used to receive synchronizing signal, the bit and each data pulse is used for encoding, its duration is 800ns, the time of rising edge and trailing edge all is 5ns.The duration of these 2047 pulses is 1.6376ms altogether, and the quiet time between two group pulses is 14.3624ms, and the duty ratio of signal is about 10%.The LDS signal should send continuously, and receiving terminal can be determined the frequency departure of each pulse position and two end signals, thus the coded data of obtaining.
Common ADSL speech separator only needs low pass just passable.But, LRE is the base band technology, both comprised that low frequency signal also comprised high-frequency signal, for fear of of the interference of low frequency LRE signal to voice signal, increased a high pass filter block in the LRE speech separator solution, signal filters the remaining voice signal in back by low pass filter blocks, signal filters the remaining LRE signal in back by high pass filter block, isolating speech signals and LRE signal filter the low frequency part in the LRE signal, avoid the purpose of LRE signal to the interference of voice signal to reach.The design parameter of low pass filter is 200Hz～4KHz, and the design parameter of high pass filter is 25KHz～60MHz, and it is that the default speech separator of industry is the highest by the frequency design parameter that this high pass stops frequency.
Because the data pulse in the LDS agreement partly need be used the following frequency spectrum of 25KHz, therefore the LDS auto-negotiation function in the LRE standard can not normally be used under the situation that LRE speech separator is arranged, promptly LRE with the situation of speech conllinear under can't use LDS auto-negotiation function to carry out the automatic negotiation of speed.
Summary of the invention
The invention provides the method and apparatus of consulting the LRE mode of operation under the situation of a kind of LRE and speech conllinear automatically, be implemented in the automatic negotiation of LRE mode of operation when LDS can not work under the situation of LRE and speech conllinear.
The invention provides a kind of method apart from the automatic LRE of negotiation mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear, this method may further comprise the steps:
Candidate's LRE mode of operation and opposite equip. communicate by turns;
If communicate by letter successfully, then use the current LRE mode of operation of communicating by letter successfully to communicate by letter with described opposite equip., finish the negotiation of LRE mode of operation;
If communication failure, continue to carry out the step that LRE mode of operation and described opposite equip. by turns communicate.
Before described candidate's by turns LRE mode of operation and opposite equip. communicate, also comprise:
The LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter;
The order and the rotation time by turns of configuration candidate's LRE mode of operation.
The rotation time difference of Different L RE mode of operation.
The described LRE mode of operation of determining the candidate according to the medium parameter under LRE and its line situation of speech and rate parameter comprises:
Among 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, 10Mbps/4pair, the 100Mbps/4pair at least one.
Described candidate's by turns LRE mode of operation and opposite equip. communicate and comprise:
Use described candidate's LRE mode of operation to send the communication request message, and receive the communication request message that described opposite equip. sends to described opposite equip.;
If the communication request message that the described opposite equip. of identification sends then sends the communication response message to described opposite equip., foundation communicates to connect with described opposite equip.;
If receive the communication response message that described opposite equip. sends, then judge and communicate by letter successfully, otherwise judge communication failure.
The invention provides a kind of device, comprising apart from the automatic LRE of negotiation mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear:
Toggle unit, being used for by turns, candidate's LRE mode of operation and opposite equip. communicate;
Pattern determining unit when being used for described toggle unit communication success, uses the current LRE mode of operation of communicating by letter successfully to communicate by letter with described opposite equip., finishes the negotiation of LRE mode of operation.
Also comprise:
The candidate pattern determining unit is used for the LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter;
Dispensing unit is used to dispose the order and the rotation time by turns of candidate's LRE mode of operation.
The rotation time difference of Different L RE mode of operation.
Described candidate pattern determining unit also is used for:
The LRE mode of operation of determining described candidate is at least one among 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, 10Mbps/4pair, the 100Mbps/4pair.
Described toggle unit by turns comprises:
The transmitting-receiving subelement, be used to use candidate's LRE mode of operation to send the communication request message to described opposite equip., and receive the communication request message that described opposite equip. sends and discern, and after discerning described communication request message, described recognin unit sends the communication response message to described opposite equip. by the recognin unit;
The recognin unit is used for the communication request message that described transmitting-receiving subelement receives is discerned;
Judgment sub-unit when being used to receive the communication response message of described opposite equip. transmission, being judged and is communicated by letter successfully, otherwise judges communication failure.
Compared with prior art, the present invention has the following advantages at least:
LRE with the situation of speech conllinear under, by candidate's LRE mode of operation and opposite equip. communicate by turns, automatically consult to communicate employed LRE mode of operation, realized under LRE and the speech conllinear situation automatic negotiation the LRE mode of operation with opposite equip..
Description of drawings
Fig. 1 a is a LRE networking structure schematic diagram in the prior art;
Fig. 1 b, the 2nd, LES link negotiation process schematic diagram in the prior art;
Fig. 3 is a schematic flow sheet of consulting the method for LRE mode of operation under the situation of LRE provided by the invention and speech conllinear automatically;
Fig. 4 is the schematic flow sheet that the method for LRE mode of operation is provided under the situation of the LRE that provides of application scenarios of the present invention and speech conllinear automatically;
Fig. 5 is an apparatus structure schematic diagram of consulting the LRE mode of operation under the situation of LRE provided by the invention and speech conllinear automatically.
Embodiment
Core concept of the present invention is: communicate by LRE mode of operation and the opposite equip. of rotating the candidate, be implemented in the automatic negotiation of LRE mode of operation under LRE and the speech conllinear situation.
The invention provides a kind of method apart from the automatic LRE of negotiation mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear, as shown in Figure 3, this method may further comprise the steps:
Step 301, candidate's LRE mode of operation communicates with opposite equip. successively by turns; If communicate by letter successfully execution in step 302; Otherwise, if communication failure continues to carry out this step.
Wherein, the equipment that carries out LRE communication is user terminal and local side apparatus.For example, when the active initiator of LRE communication was user terminal, its opposite equip. was a local side apparatus, when the masters of LRE communication is local side apparatus, its opposite equip. is a user terminal, and promptly the opposite equip. in the step 301 can be user terminal or local side apparatus, also can both sides initiate simultaneously.
Step 302 uses the current LRE mode of operation of communicating by letter successfully to communicate by letter with described opposite equip., finishes the negotiation of LRE mode of operation.
Introduce provided by the invention in detail apart from the method for consulting the LRE mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear automatically below in conjunction with concrete application scenarios.
As shown in Figure 4, this method may further comprise the steps:
Concrete, the mode of operation that LRE supports relates to two factors, and one is medium parameter, and one is rate parameter.Such as 10Mbps/1pair, what refer to is exactly 10Mbps mode of operation on 1 pair of twisted pair media.LRE with the applicable cases of speech conllinear, generally occur in the fewer situation of speech medium, such as the situation of having only a pair of line medium.According to these characteristics, can dwindle the kind of the mode of operation of LRE greatly.Because LRE can support 1/2/4 pair of line; 1/2/4 pair of twisted pair media is distinguished corresponding 10Mbps and two kinds of mode of operations of 100Mbps; and the common speech medium of situation that LRE and speech conllinear take place is fewer; the probability that LRE and speech conllinear situation promptly take place under the situation of 2/4 pair of twisted pair media is very little; should be with preferred in the scene; be selected under the situation of LRE conllinear simulated voice, LRE supports 10Mbps/1pair and two kinds of mode of operations of 100Mbps/1pair.Certainly, also can determine LRE support 10Mbps/1pair, 100Mbps/1pair, 100Mbps/2pair and four kinds of mode of operations of 10Mbps/2pair or 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, six kinds of mode of operations of 10Mbps/4pair, 100Mbps/4pair.
Concrete, this equipment can be user terminal or local side apparatus.For example, when this equipment is user terminal, its opposite equip. that need communicate by letter is a local side apparatus, on user terminal and local side apparatus, dispose the scheme by turns of LRE mode of operation respectively, the scheme by turns of this LRE mode of operation is: the order and the rotation time by turns of the LRE mode of operation of determining in the configuration step 401, rotation time is the time that equipment uses each LRE mode of operation by turns to communicate, wherein the rotation time difference of Different L RE mode of operation.Support that with LRE 10Mbps/1pair and two kinds of mode of operations of 100Mbps/1pair are example, configuration scheme by turns is: after the device power, communicate by letter according to 10Mbps/1pair in T1 (such as the 10s) time, in the ensuing T2 time (such as 15s), communicate by letter according to 100Mbps/1pair, so circulation, consult the final LRE mode of operation of consulting to determine two ends according to this order and opposite end.When this equipment was local side apparatus, its opposite equip. that need communicate by letter is a user terminal, and was similar with above-mentioned situation, disposed the scheme by turns of LRE mode of operation on user terminal and local side apparatus respectively.
Concrete, support that with LRE 10Mbps/1pair and two kinds of mode of operations of 100Mbps/1pair are example, equipment at first sends the communication request message according to the 10Mbps/1pair mode of operation to opposite equip., if opposite equip. can be discerned the communication request message of this mode of operation, then send the communication response message to equipment, the equipment judgement is communicated by letter successfully; Otherwise opposite equip. can not be discerned the communication request message of this mode of operation, and equipment can't receive the communication response message that opposite equip. sends in the given time, judges communication failure.
Carry out the automatic negotiation of LRE mode of operation after the device power with opposite equip., comprise following situation:
A, opposite equip. do not power on;
The mode of operation that B, opposite equip. use is different with equipment work at present pattern;
The mode of operation that C, opposite equip. use is identical with equipment work at present pattern.
The communication request message that opposite equip. can identification equipment sends under the C situation, thus the communication response message sent to equipment.
Need to prove, method provided by the invention not only is applicable to the user terminal and all unfixed situation of local side apparatus LRE mode of operation of LRE communication, also be applicable to the fixing situation of side's mode of operation in user terminal and the local side apparatus, for example the LRE mode of operation of user terminal is fixed as 10Mbps/1pair, at this moment, the scheme by turns that only needs local side apparatus configuration LRE mode of operation, and determine that by the by turns final of mode of operation the LRE mode of operation of local side apparatus is 10Mbps/1pair, and under this mode of operation, communicate with user terminal.LRE mode of operation for local side apparatus is fixed, the unfixed situation of the LRE mode of operation method provided by the invention of user terminal is suitable equally, does not repeat them here.
By adopting method provided by the invention, LRE with the situation of speech conllinear under, by candidate's LRE mode of operation and opposite equip. communicate by turns, automatically consult to communicate employed LRE mode of operation, realized under LRE and the speech conllinear situation automatic negotiation the LRE mode of operation with opposite equip..
The invention provides a kind of device apart from the automatic LRE of negotiation mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear, this device is arranged in user terminal and/or local side apparatus, and as shown in Figure 5, this device comprises:
Device provided by the invention also comprises:
Candidate pattern determining unit 13 is used for the LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter.Concrete, described candidate pattern determining unit 13 also is used under a pair of line medium situation, and the LRE mode of operation of determining described candidate is at least one among 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, 10Mbps/4pair or the 100Mbps/4pair.
Dispensing unit 14 is used to dispose the order and the rotation time by turns of candidate's LRE mode of operation.Concrete, the corresponding different rotation times of these dispensing unit 14 configuration Different L RE mode of operations.
By adopting device provided by the invention, LRE with the situation of speech conllinear under, by candidate's LRE mode of operation and opposite equip. communicate by turns, automatically consult to communicate employed LRE mode of operation, realized under LRE and the speech conllinear situation automatic negotiation the LRE mode of operation with opposite equip..
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (10)
1. one kind apart from the method for automatically consulting the LRE mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear, it is characterized in that this method may further comprise the steps:
Candidate's LRE mode of operation and opposite equip. communicate by turns;
If communicate by letter successfully, then use the current LRE mode of operation of communicating by letter successfully to communicate by letter with described opposite equip., finish the negotiation of LRE mode of operation;
If communication failure, continue to carry out the step that LRE mode of operation and described opposite equip. by turns communicate.
2. the method for claim 1 is characterized in that, before described candidate's by turns LRE mode of operation and opposite equip. communicate, also comprises:
The LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter;
The order and the rotation time by turns of configuration candidate's LRE mode of operation.
3. method as claimed in claim 2 is characterized in that, the described LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter comprises:
Among 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, 10Mbps/4pair, the 100Mbps/4pair at least one.
4. method as claimed in claim 2 is characterized in that, the rotation time difference of Different L RE mode of operation.
5. the method for claim 1 is characterized in that, described candidate's by turns LRE mode of operation and opposite equip. communicate and comprise:
Use described candidate's LRE mode of operation to send the communication request message, and receive the communication request message that described opposite equip. sends to described opposite equip.;
If the communication request message that the described opposite equip. of identification sends then sends the communication response message to described opposite equip., foundation communicates to connect with described opposite equip.;
If receive the communication response message that described opposite equip. sends, then judge and communicate by letter successfully, otherwise judge communication failure.
6. the device apart from automatic negotiation LRE mode of operation under the situation of enhancement mode Ethernet LRE and speech conllinear is characterized in that, comprising:
Toggle unit, being used for by turns, candidate's LRE mode of operation and opposite equip. communicate;
Pattern determining unit is connected with described toggle unit, when being used for described toggle unit communication success, uses the current LRE mode of operation of communicating by letter successfully to communicate by letter with described opposite equip., finishes the negotiation of LRE mode of operation.
7. device as claimed in claim 6 is characterized in that, also comprises:
The candidate pattern determining unit is used for the LRE mode of operation of determining the candidate according to the medium parameter under LRE and the speech conllinear situation and rate parameter;
Dispensing unit is connected with described toggle unit, is used to dispose the order and the rotation time by turns of candidate's LRE mode of operation.
8. device as claimed in claim 7 is characterized in that, described candidate pattern determining unit also is used for:
The LRE mode of operation of determining described candidate is at least one among 10Mbps/1pair, 100Mbps/1pair, 10Mbps/2pair, 100Mbps/2pair, 10Mbps/4pair, the 100Mbps/4pair.
9. device as claimed in claim 7 is characterized in that, described dispensing unit also is used for:
The corresponding different rotation times of configuration Different L RE mode of operation.
10. device as claimed in claim 6 is characterized in that, described toggle unit by turns comprises:
The transmitting-receiving subelement, be used to use candidate's LRE mode of operation to send the communication request message to described opposite equip., and receive the communication request message that described opposite equip. sends and discern, and after discerning described communication request message, described recognin unit sends the communication response message to described opposite equip. by the recognin unit;
The recognin unit is connected with described transmitting-receiving subelement, is used for the communication request message that described transmitting-receiving subelement receives is discerned;
Judgment sub-unit is connected with described transmitting-receiving subelement, when being used to receive the communication response message of described opposite equip. transmission, judging and communicates by letter successfully, otherwise judge communication failure.
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| CN 201010136664 CN101789856A (en) | 2010-03-31 | 2010-03-31 | Method and device for automatically negotiating long-range Ethernet (LRE) working mode under condition of collineation of LRE and voice |
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| CN 201010136664 CN101789856A (en) | 2010-03-31 | 2010-03-31 | Method and device for automatically negotiating long-range Ethernet (LRE) working mode under condition of collineation of LRE and voice |
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| CN110972113A (en) * | 2018-09-29 | 2020-04-07 | 通号城市轨道交通技术有限公司 | Train communication system |
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Application publication date: 20100728 |