CN101765033A - Dynamic time slot allocating method applied to coaxial load-bearing Ethernet equipment - Google Patents
Dynamic time slot allocating method applied to coaxial load-bearing Ethernet equipment Download PDFInfo
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- CN101765033A CN101765033A CN200910200478A CN200910200478A CN101765033A CN 101765033 A CN101765033 A CN 101765033A CN 200910200478 A CN200910200478 A CN 200910200478A CN 200910200478 A CN200910200478 A CN 200910200478A CN 101765033 A CN101765033 A CN 101765033A
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Abstract
The invention discloses a dynamic time slot allocating method applied to coaxial load-bearing Ethernet equipment, having the advantages of high channel utilization rate, quality of service (QoS) support and fairness. The dynamic time slot allocating method has the technical scheme that the method comprises the following steps of: reporting time slot demands by each of customer premise equipment at the signal uplinking stage, uniformly allocating by central office equipment in the signal downlinking state according to the demand of each of the customer premise equipment, issuing broadcasts to notify the time slot arrangement at next uplinking moment to each of the customer premise equipment, and then transmitting the data of each priority-level array and updated total time slot demands to the central office equipment by using each of the customer premise equipment in the next uplinking stage in the condition of the priority level of the own array in strict accordance with the time slot starting and stopping moment allocated by the central office equipment .
Description
Technical field
The present invention relates to slot allocation method, relate in particular in coaxial load-bearing Ethernet (being designated hereinafter simply as EOC) technology is used at different user or professional method of carrying out dynamic time slot allocation.
Background technology
In the EOC technology, the syndeton between local side apparatus and user side are provided with as shown in Figure 1, local side apparatus is connected with a plurality of ustomer premises access equipments by splitter, distributor.Local side apparatus is a down direction to the sending direction of ustomer premises access equipment, and ustomer premises access equipment is a up direction to the sending direction of local side apparatus.
Existing exemplary dynamic slot allocation method roughly has two kinds, a kind of IPACT of being (variable cycle interleave poll) method, and another kind is the dynamic time slot allocating method of typical EOC system.
The IPACT method is summarized as follows:
Step 1: at t
0Constantly, local side apparatus know in certain ustomer premises access equipment, have how many data to send and local side apparatus and ustomer premises access equipment between information send consuming time.There is the information of poll in local side apparatus in the middle of the form, and local side apparatus sends the ascending time slot arrangement for this ustomer premises access equipment (being called ustomer premises access equipment 1) then, allows it to send the data of N byte.
Step 2: ustomer premises access equipment 1 is once receiving that this ascending time slot arrangement sends data later on, meanwhile receiving descending Frame always, generate the time slot demand and send to local side apparatus when sending fast the end, this demand tells in the local side apparatus renewal ustomer premises access equipment 1 to also have how many data to need to transmit.
Step 3: even if receive at local side apparatus before the answer of ustomer premises access equipment 1, it has just known when last bit that ustomer premises access equipment 1 transmits arrives.
Step 4: after a time, arrived from the data of ustomer premises access equipment 1.When ustomer premises access equipment 1 sends ED, have a new request comes, comprised the information that also has how many data to send in the buffer memory of ustomer premises access equipment 1 before this request sends in the middle of this request.Local side apparatus just upgrades its tabulation with the information in the middle of this request.
Step 5: similar with step 4, when last bit that local side apparatus calculates ustomer premises access equipment 2 arrives.Then, its sending time slots arrange to ustomer premises access equipment 3 make ustomer premises access equipment 3 data and then the data of ustomer premises access equipment 2 send.Again after a period of time, arrived from the data of ustomer premises access equipment 2, local side apparatus upgrades its tabulation once more, is the time inlet of ustomer premises access equipment 2 specifically.
Fig. 2 shows the sequential example of this IPACT method.The weak point of this IPACT method is that polling cycle does not add restriction, certain ustomer premises access equipment that up channel may be transmitted mass data monopolizes, channel utilization was very low when load was light, did not also have real time business QoS and guaranteed, and be only applicable to the EPON system.
Another kind method is the dynamic time slot allocating method of typical EOC system.Time slot and priority demand that local side apparatus proposes according to ustomer premises access equipment, unified dispatching down distributing allows each user side to upload the length of time slot.Up transmission information in the time slot that is arranged in regulation of ustomer premises access equipment according to local side apparatus.
In the up period or at the interval of uplink and downlink, there is one section fixing time slot to be used for allowing ustomer premises access equipment use in the period to the local side apparatus registration.
The deficiency of this a kind of dynamic time slot allocating method is that certain ustomer premises access equipment that up channel may be transmitted mass data monopolizes, and do not consider the secondary arrangement of rich time slot, local side apparatus is excessive based on the computing pressure that distributes time slot, and registration is fixing dumb etc. with slot length.
Summary of the invention
The objective of the invention is to address the above problem, a kind of dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device is provided, have the high channel utilance, support QoS and fairness.
Technical scheme of the present invention is: the present invention has disclosed a kind of dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device, comprising:
(1) start-stop of next up period of local side apparatus downlink broadcast constantly, comprising time window period that is used to apply for the registration of and the time slot arrangement of distributing to each ustomer premises access equipment;
(2) unregistered if receive the ustomer premises access equipment of broadcasting, then carry out the processing of step (3)～(5), if it is registered to receive the ustomer premises access equipment of broadcasting, then carry out the processing of step (6)～(7);
(3) unregistered ustomer premises access equipment sends application for registration to local side apparatus at the time window of applying for the registration of in the period;
(4) local side apparatus receives the mandate audit of ustomer premises access equipment being carried out after the application for registration legitimacy, and the information that audit is finished by the descending transmission registration of back local side apparatus is to ustomer premises access equipment;
(5) after ustomer premises access equipment is received and registered the information of finishing, send accreditation verification to local side apparatus, this moment, accreditation process was finished;
(6) registered ustomer premises access equipment is according to the time slot arrangement in the broadcasting, in distributed time slot to the time slot demand of local side apparatus uplink data sending and renewal;
(7) the time slot demand, the total length of next up period of distributing according to need and the time slot arrangement wherein that report according to all ustomer premises access equipments of local side apparatus.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, in step (1), if exist without any registered ustomer premises access equipment, then next up moment all is the time window period that is used to apply for the registration of.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, in step (1), first time slot arrangement is the length that the length of the up period of setting deducts the time window period of application for registration, all gives the current ustomer premises access equipment of having finished registration according to the sequencing of registration again.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, keep a segment protect between the ascending time slot of ustomer premises access equipment at interval.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, in step (3), after powering on, unregistered ustomer premises access equipment intercepts broadcasting earlier, learning the definite time window that is used to apply for the registration of after the period, the time point that begins from time window postpones up again transmission application for registration of a period of time to local side apparatus at random.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, the time slot demand that transmission in the step (6) is upgraded further is meant ustomer premises access equipment is reported local side apparatus with self remaining data formation situation at the end of assigned timeslot, with the foundation of arranging time slot in next up period as local side apparatus.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, in step (6), ustomer premises access equipment is supported the formation priority mode: after ustomer premises access equipment has sent the time slot request in receiving the time slot arrangement during this period of time that local side apparatus issues, the data of high priority unconditionally preferentially occupy transmit queue, receive time slot arrangement that local side apparatus issues up to ustomer premises access equipment begin uplink data sending during this period of time in, high-priority data haves no right preferentially to occupy transmit queue.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, in step (7), local side apparatus is dynamically adjusted the period ratio of up-downgoing according to the historical discharge record of up-downgoing, to keep suitable polling cycle; And local side apparatus is dynamically adjusted the ratio of length in the whole up period of the time window period of applying for the registration of in next up period according to the relation of the quantity upper limit of the quantity of registered ustomer premises access equipment and the ustomer premises access equipment that can support.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, this local side apparatus is provided with the upper limit for the distribution slot length of each ustomer premises access equipment, and each ustomer premises access equipment is provided with user gradation.
According to an embodiment who is applied to the dynamic time slot allocating method of coaxial load-bearing ethernet device of the present invention, local side apparatus has also carried out the secondary distribution of time slot when time slot allocation: if after the first time, time slot allocation was finished the up period still have vacant time slot not to be assigned with, then vacant time slot is accounted for the ustomer premises access equipment that the ratio of total unmet demand distributes the vacant time slot in the up period not to be met for those time slot demands according to the unmet demand of ustomer premises access equipment.
The present invention contrasts prior art following beneficial effect: technical scheme of the present invention is applicable to the half-duplex EOC system that allocates uplink and downlink signals shared channel bandwidth by the TDMA mode.By reporting the time slot demand by each ustomer premises access equipment in the signal uplink stage, carry out unified allocation of resources by local side apparatus according to the demand of each ustomer premises access equipment in the signal downlink stage then, issue broadcasting and inform of the time slot arrangement of each ustomer premises access equipment in next up moment, in the back to back up stage, each ustomer premises access equipment sends total time slot demand of the data of each priority query and renewal to local side apparatus according to the situation of self queue priority in strict accordance with the start-stop of local side apparatus distributed time slot more constantly.The contrast prior art, method of the present invention is applicable to EOC equipment, has the high channel utilance, supports QoS and fairness.
Description of drawings
Fig. 1 is the syndeton schematic diagram between local side apparatus and the ustomer premises access equipment.
Fig. 2 is the schematic diagram of an example of the sequential of IPACT.
Fig. 3 is the flow chart of embodiment of the dynamic time slot allocating method of the EOC of being applied to equipment of the present invention.
Fig. 4 is the schematic diagram of the exemplary allocations of up-downgoing period.
Fig. 5 is the schematic diagram that the time slot of initial uplink period is arranged.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Fig. 3 shows the flow process of embodiment of the dynamic time slot allocating method of the EOC of being applied to equipment of the present invention.Seeing also Fig. 3, is the detailed description to each step of the dynamic time slot allocating method of present embodiment below.
Step S10: the start-stop of next up period of local side apparatus downlink broadcast constantly, comprising time window period that is used to apply for the registration of and the time slot arrangement of distributing to each ustomer premises access equipment.
In this step; characteristic according to the EOC half-duplex network; time shaft is divided into the period arrangement that uplink and downlink replace successively; and keeping a segment protect respectively at interval between the up-downgoing, between the ascending time slot of hour of log-on window and ustomer premises access equipment and between the ascending time slot of ustomer premises access equipment, unify to dispatch the sending direction and the transmitting apparatus in a certain moment in the whole system by local side apparatus.
For example as shown in Figure 4, at first total time shaft being divided into the up-downgoing period after local side apparatus powers on replaces five equilibrium.Segment protect then was that segment protect is again that segment protect so circulates at interval when the descending period of 300ms adding 3ms at interval afterwards when the up period of 300ms adding 3ms at interval when the descending period of for example first 300ms was added 3ms.
First time slot arrangement is: the length of the up period that will set deducts the length of the time window period of application for registration, all gives the current ustomer premises access equipment of having finished registration according to the sequencing of registration again.If exist without any registered ustomer premises access equipment, the then next up moment all is used to time window period of applying for the registration of.
Step S11: whether the ustomer premises access equipment that receives broadcasting is registered, if having not yet registered then enter step S12, if registered then enter step S15.
Step S12: unregistered ustomer premises access equipment sends application for registration to local side apparatus at the time window of applying for the registration of in the period.
Furtherly, intercept broadcasting earlier after unregistered ustomer premises access equipment powers on, learning the definite time window that is used to apply for the registration of after the period, the time point that begins from the hour of log-on window postpones up again transmission application for registration of a period of time to local side apparatus at random.This measure is to bump when preventing that a plurality of ustomer premises access equipments from sending application for registration.Ustomer premises access equipment is intercepted downstream message after sending application for registration all the time, if do not receive the response of application for registration in next descending period, then can be judged as registration timeout, continue up transmission application for registration according to the hour of log-on window period of up-to-date arrangement, till succeeding in registration.
Step S13: local side apparatus receives the mandate audit of ustomer premises access equipment being carried out after the application for registration legitimacy, and the information that audit is finished by the descending transmission registration of back local side apparatus is to ustomer premises access equipment.
Step S14: after ustomer premises access equipment is received and registered the information of finishing, send accreditation verification to local side apparatus, this moment, accreditation process was finished.
This moment, whole accreditation process was finished, and ustomer premises access equipment becomes registered state.
Step S15: registered ustomer premises access equipment is according to the time slot arrangement in the broadcasting, in distributed time slot to the local side apparatus uplink data sending and the time slot demand after upgrading.
As shown in Figure 5, the time slot arrangement that the ustomer premises access equipment basis obtains, when one's own time slot arrives, uplink data sending information, and the remaining data formation situation of oneself is reported local side apparatus at the time slot end, with the foundation of arranging time slot as next up period.Meanwhile, unregistered ustomer premises access equipment continues to carry out application for registration in the period at the time window of the application for registration of stipulating.
As can be seen, one of improvement of the present invention is that the allotment task of priority has been transferred to ustomer premises access equipment from local side apparatus in this step.Ustomer premises access equipment only reports total time slot demand to local side apparatus, distinguishes the time slot allocation of priority then in the assigned timeslot that is assigned to again according to the situation of its data formation, can reduce the calculating pressure of local side apparatus like this.
Ustomer premises access equipment is supported the formation priority mode, and ustomer premises access equipment carries out the priority division to the data of self formation the inside, and the high priority data of high priority occupies formation in principle, promptly preferentially sends.But, can cause the data delay for a long time of low priority and cause the system's overall delay of ustomer premises access equipment and the increase of shake, the service quality that influence is whole if the data of high priority monopolize formation for a long time.Therefore for fear of the appearance of this situation, the data that high priority is set occupy the condition time point of formation, just after ustomer premises access equipment has sent the time slot request in receiving the time slot arrangement during this period of time that local side apparatus issues, the data of high priority can unconditionally occupy formation, but receive time slot arrangement that local side apparatus issues up to ustomer premises access equipment really begin to upload send data during this period of time in, high-priority data haves no right preferentially to occupy formation, and promptly data queue should keep original order.So both guarantee the preferential transmission of high-priority data, guaranteed again that lower-priority data also had certain send opportunity simultaneously, thereby avoided the decreased performance of system aspect time-delay and shake, taken into account priority and fairness.
Step S16: the time slot demand that local side apparatus reports according to all ustomer premises access equipments, the total length of next up period of distributing according to need and time slot arrangement wherein.
Notion during the time slot demand here and previous step are rapid is the same, is meant remaining data formation situation.
Characteristics in this step comprise:
Local side apparatus can dynamically be adjusted the period ratio of up-downgoing according to the historical discharge record of up-downgoing, according to the actual flow situation, between distribution of the up-downgoing period of symmetry and the distribution of asymmetric up-downgoing period, switch flexibly, thereby remain suitable polling cycle.
Local side apparatus can dynamically be adjusted the ratio of length in the whole up period of the hour of log-on window of next up period according to the relation of the registered users end number of devices and the number of customer premises devices upper limit that can support.
Hold the equipment up period of long-term monopolization for fear of the certain user that the mass data flow is arranged, local side apparatus is provided with the upper limit for the slot length of each ustomer premises access equipment.In addition,, each ustomer premises access equipment is provided with SLA (user gradation), is provided with such as parameters such as minimum time slot, maximum time slot, minimum communication conditions, come corresponding adjustment and customize services according to user gradation in order to realize the justice between the user.
Rationally utilize time slot to greatest extent for asking, local side apparatus can carry out the secondary distribution of time slot: after distributing for the first time, if the up period still has vacant time slot not to be assigned with, then vacant time slot is accounted for the ustomer premises access equipment that the ratio of total unmet demand distributes the vacant time slot in the up period not to be met for those time slot demands according to the unmet demand of ustomer premises access equipment.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (10)
1. dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device comprises:
(1) start-stop of next up period of local side apparatus downlink broadcast constantly, comprising time window period that is used to apply for the registration of and the time slot arrangement of distributing to each ustomer premises access equipment;
(2) unregistered if receive the ustomer premises access equipment of broadcasting, then carry out the processing of step (3)～(5), if it is registered to receive the ustomer premises access equipment of broadcasting, then carry out the processing of step (6)～(7);
(3) unregistered ustomer premises access equipment sends application for registration to local side apparatus at the time window of applying for the registration of in the period;
(4) local side apparatus receives the mandate audit of ustomer premises access equipment being carried out after the application for registration legitimacy, and the information that audit is finished by the descending transmission registration of back local side apparatus is to ustomer premises access equipment;
(5) after ustomer premises access equipment is received and registered the information of finishing, send accreditation verification to local side apparatus, this moment, accreditation process was finished;
(6) registered ustomer premises access equipment is according to the time slot arrangement in the broadcasting, in distributed time slot to the time slot demand of local side apparatus uplink data sending and renewal;
(7) the time slot demand, the total length of next up period of distributing according to need and the time slot arrangement wherein that report according to all ustomer premises access equipments of local side apparatus.
2. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, in step (1), if exist without any registered ustomer premises access equipment, then next up moment all is the time window period that is used to apply for the registration of.
3. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, in step (1), first time slot arrangement is the length that the length of the up period of setting deducts the time window period of application for registration, all gives the current ustomer premises access equipment of having finished registration according to the sequencing of registration again.
4. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 3 is characterized in that, keeps a segment protect between the ascending time slot of ustomer premises access equipment at interval.
5. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, in step (3), after powering on, unregistered ustomer premises access equipment intercepts broadcasting earlier, learning the definite time window that is used to apply for the registration of after the period, the time point that begins from time window postpones up again transmission application for registration of a period of time to local side apparatus at random.
6. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, the time slot demand that transmission in the step (6) is upgraded further is meant ustomer premises access equipment is reported local side apparatus with self remaining data formation situation at the end of assigned timeslot, with the foundation of arranging time slot in next up period as local side apparatus.
7. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, in step (6), ustomer premises access equipment is supported the formation priority mode: after ustomer premises access equipment has sent the time slot request in receiving the time slot arrangement during this period of time that local side apparatus issues, the data of high priority unconditionally preferentially occupy transmit queue, receive time slot arrangement that local side apparatus issues up to ustomer premises access equipment begin uplink data sending during this period of time in, high-priority data haves no right preferentially to occupy transmit queue.
8. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, in step (7), all end equipment is dynamically adjusted the period ratio of up-downgoing according to the historical discharge record of up-downgoing, to keep suitable polling cycle; And local side apparatus is dynamically adjusted the ratio of length in the whole up period of the time window period of applying for the registration of in next up period according to the relation of the quantity upper limit of the quantity of registered ustomer premises access equipment and the ustomer premises access equipment that can support.
9. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1 is characterized in that, this local side apparatus is provided with the upper limit for the distribution slot length of each ustomer premises access equipment, and each ustomer premises access equipment is provided with user gradation.
10. the dynamic time slot allocating method that is applied to the coaxial load-bearing ethernet device according to claim 1, it is characterized in that, local side apparatus has also carried out the secondary distribution of time slot when time slot allocation: if after the first time, time slot allocation was finished the up period still have vacant time slot not to be assigned with, then vacant time slot is accounted for the ustomer premises access equipment that the ratio of total unmet demand distributes the vacant time slot in the up period not to be met for those time slot demands according to the unmet demand of ustomer premises access equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910200478 CN101765033B (en) | 2009-12-23 | 2009-12-23 | Dynamic time slot allocating method applied to coaxial load-bearing Ethernet equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200910200478 CN101765033B (en) | 2009-12-23 | 2009-12-23 | Dynamic time slot allocating method applied to coaxial load-bearing Ethernet equipment |
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| CN101765033A true CN101765033A (en) | 2010-06-30 |
| CN101765033B CN101765033B (en) | 2012-12-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103829A2 (en) * | 2012-03-20 | 2012-08-09 | 华为技术有限公司 | Method, device and system for transmitting data in coaxial network |
| WO2014113955A1 (en) * | 2013-01-24 | 2014-07-31 | 华为技术有限公司 | Epoc system-based registration method, device and system |
| CN109802873A (en) * | 2017-11-17 | 2019-05-24 | 上海金阵半导体科技有限公司 | EoC load-balancing method and system and EoC local side apparatus |
| WO2019144775A1 (en) * | 2018-01-29 | 2019-08-01 | 京信通信系统（中国）有限公司 | Resource scheduling method and system based on tdma system |
| CN111385744A (en) * | 2018-12-27 | 2020-07-07 | 杭州潇楠科技有限公司 | Dynamic channel access method based on polling |
| US20220159458A1 (en) * | 2019-07-31 | 2022-05-19 | Huawei Technologies Co., Ltd. | Method for authenticating access network device, and related device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1897591A (en) * | 2006-04-10 | 2007-01-17 | 中国电信股份有限公司 | Multipoint-controlled protocol discovery processing method and related Ethernet passive light network |
| CN101421954A (en) * | 2006-04-11 | 2009-04-29 | 汤姆逊许可公司 | Medium access control method for data transmission through CATV access network |
| CN101242434A (en) * | 2007-02-07 | 2008-08-13 | 杭州华三通信技术有限公司 | A data transmission method and its transmission device in coaxial network |
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2009
- 2009-12-23 CN CN 200910200478 patent/CN101765033B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012103829A2 (en) * | 2012-03-20 | 2012-08-09 | 华为技术有限公司 | Method, device and system for transmitting data in coaxial network |
| CN102742203A (en) * | 2012-03-20 | 2012-10-17 | 华为技术有限公司 | Method, device and system for transmitting data in coaxial network |
| WO2012103829A3 (en) * | 2012-03-20 | 2013-02-21 | 华为技术有限公司 | Method, device and system for transmitting data in coaxial network |
| CN102742203B (en) * | 2012-03-20 | 2014-10-08 | 华为技术有限公司 | Method, device and system for transmitting data in coaxial network |
| WO2014113955A1 (en) * | 2013-01-24 | 2014-07-31 | 华为技术有限公司 | Epoc system-based registration method, device and system |
| CN109802873A (en) * | 2017-11-17 | 2019-05-24 | 上海金阵半导体科技有限公司 | EoC load-balancing method and system and EoC local side apparatus |
| WO2019144775A1 (en) * | 2018-01-29 | 2019-08-01 | 京信通信系统（中国）有限公司 | Resource scheduling method and system based on tdma system |
| CN111385744A (en) * | 2018-12-27 | 2020-07-07 | 杭州潇楠科技有限公司 | Dynamic channel access method based on polling |
| US20220159458A1 (en) * | 2019-07-31 | 2022-05-19 | Huawei Technologies Co., Ltd. | Method for authenticating access network device, and related device |
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| CN101765033B (en) | 2012-12-19 |
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