CN102549952A - Method, system and device for bandwidth resource management - Google Patents
Method, system and device for bandwidth resource management Download PDFInfo
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- CN102549952A CN102549952A CN2011800030232A CN201180003023A CN102549952A CN 102549952 A CN102549952 A CN 102549952A CN 2011800030232 A CN2011800030232 A CN 2011800030232A CN 201180003023 A CN201180003023 A CN 201180003023A CN 102549952 A CN102549952 A CN 102549952A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L47/00—Traffic control in data switching networks
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- H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
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Abstract
The invention discloses a method for bandwidth resource management which has the characteristics of, including, getting bandwidth resource information of a coaxial channel between a photoelectric converter OEC and a coaxial network unit CNU; sending the bandwidth resource information of the coaxial channel to an optical line terminal OLT; receiving bandwidth allocation indicating information of the coaxial channel sent by the OLT according to the bandwidth resource information of the coaxial channel; providing coaxial channel bandwidth to the CNU according to the bandwidth allocation indicating information of the coaxial channel. Furthermore, the invention discloses a system and a device for bandwidth resource management. The invention further discloses a system and a device for bandwidth resource management.
Description
Technical field
The present invention relates to the communication technology, especially, relate to a kind of bandwidth management mthods, systems and devices.
Background technology
The mode of FTTB (Fiber To The Building, FTTB) and FTTC (Fiber To The Curb, Fiber To The Curb) is to satisfy the main flow access way of user's high bandwidth business demand in the present communications field.The network architecture that the FTTC/B access way is suitable for is as shown in Figure 1.Wherein, Between OLT (Optical Line Terminal, optical line terminal) and the OEC (Optical Electronic Converter, optical-electrical converter) is fiber optic network; Between OEC and the CNU (Coaxial Network Unit, coaxial network unit) is coaxial network.
Carry out mutual communication through OEC between fiber optic network and the coaxial network.OLT will give OEC through fiber optic network from the business of SNI (Service Node Interface, SNI) with the form of light signal, and OEC termination should business, and be transformed into the signal of telecommunication that is fit to the coaxial network transmission to business and issue each CNU.
In the prior art, OLT is responsible for the first order bandwidth resources scheduling of fiber optic network, and the CLT (Coaxial Line Terminal, coaxial line terminal) at OEC place is responsible for the second level bandwidth resources scheduling of coaxial network.The fiber bandwidth resource management mechanism of OLT terminates at CLT, and CLT and each CNU pass through the bandwidth management that the mutual coaxial dielectric resource management of approving realizes coaxial network again.But, adopt the system bandwidth resource management level of such scheme too many, this will cause the operation management efficient of system lower and cost is higher.
Summary of the invention
The embodiment of the invention provides a kind of bandwidth management mthods, systems and devices, is intended to improve system's operation management efficient, the operation management cost.
A kind of bandwidth management method that the embodiment of the invention provides is characterized in that, comprising: the bandwidth resources information of obtaining coaxial channel between optical-electrical converter OEC and the coaxial network unit CNU; The bandwidth resources information of said coaxial channel is sent to optical line terminal OLT; Receive the coaxial channel allocated bandwidth indication information that said OLT issues according to the bandwidth resources information of said coaxial channel; The coaxial channel bandwidth is provided for said CNU according to said coaxial channel allocated bandwidth indication information.
A kind of bandwidth management system that the embodiment of the invention provides; It is characterized in that; Comprise: optical line terminal OLT, at least one optical-electrical converter OEC and a plurality of coaxial network unit CNU, wherein, said OLT connects said a plurality of CNU through said OEC with the mode of putting multiple spot; Adopt fiber channel to communicate between said OLT and the said OEC, adopt coaxial channel to communicate between said OEC and the CNU; Said OEC; Be used to obtain the bandwidth resources information of said coaxial channel; The bandwidth resources information of said coaxial channel is sent to said OLT; Receiving the coaxial channel allocated bandwidth indication information that said OLT issues, is that said CNU provides the coaxial channel bandwidth according to said coaxial channel allocated bandwidth indication information; Said OLT is used for the bandwidth resources information according to the coaxial channel of said OEC transmission, and said coaxial channel allocated bandwidth indication information is handed down to said OEC.
The embodiment of the invention also provides a kind of access device, it is characterized in that, comprising: coaxial channel bandwidth resources information acquisition module, sending module, receiver module and coaxial channel bandwidth provide module; Said coaxial channel bandwidth resources information acquisition module is used to obtain the bandwidth resources information of the coaxial channel between said access device and the coaxial network unit CNU; Said sending module is used for said coaxial channel bandwidth resources information is sent to optical line terminal OLT; Said receiver module is used to receive the coaxial channel allocated bandwidth indication information that said OLT issues according to said coaxial channel bandwidth resources information; Said coaxial channel bandwidth provides module, is used for according to said coaxial channel allocated bandwidth indication information, the coaxial channel bandwidth is provided for said CNU.
The method of a kind of bandwidth management that the invention described above embodiment provides, system and device; Through giving OLT with the bandwidth resources information reporting of coaxial channel; OLT directly carries out allocated bandwidth to the coaxial channel bandwidth; Can reduce OLT CNU is carried out the machine-processed level of operation management, the operation management efficient of elevator system, the cost of reduction operation management.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To make brief account to needed accompanying drawing in embodiment or the description of the Prior Art below; Clearly, the accompanying drawing in describing below only is the explanation and the some embodiments of the present invention of prior art, for the person of ordinary skill of the art; Under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The sketch map of the network system that the bandwidth management method that Fig. 1 provides for the embodiment of the invention is suitable for;
The flow chart of the bandwidth management method method that Fig. 2 provides for the embodiment of the invention;
The flow chart of the downlink bandwidth resource management that Fig. 3 provides for the embodiment of the invention;
The flow chart that Fig. 4 manages for the uplink bandwidth resource that the embodiment of the invention provides;
The structural representation of the access device that Fig. 5 provides for the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below; Technical scheme of the present invention is known intactly description; Obviously; Described embodiment only is a part of embodiment of the present invention rather than whole embodiment. based on embodiments of the invention, those of ordinary skill in the art all belongs to protection scope of the present invention at other embodiment that do not have to obtain under the prerequisite of creative work.
The embodiment of the invention provides a kind of bandwidth management method; Said bandwidth management method goes for optical fiber/coaxial mixed access system; Such as FTTC/B as shown in Figure 1 system; Wherein, optical line terminal OLT connects a plurality of coaxial network unit CNU through optical-electrical converter OEC with the mode of putting multiple spot.Be based on the fiber optic network of optical transmission medium between said OLT and the said OEC; Be also referred to as the light areas of dielectric, adopt fiber channel to communicate, be based on the coaxial network of copper transmission medium between said OEC and the CNU; Be also referred to as the copper areas of dielectric, adopt coaxial channel to communicate.In specific embodiment, said OLT can connect a plurality of OEC through fiber optic network, and further is connected respectively to the CNU of each coaxial network through said a plurality of OEC.On coaxial channel, communicate by letter, need to obtain the bandwidth resources information on the coaxial channel through technical approach such as channel measurement, bit loadings earlier, distribute suitable coaxial channel bandwidth could improve the information transfer efficiency of coaxial channel to coaxial channel then.The bandwidth management method that the embodiment of the invention provides;, above-mentioned fiber optic network and coaxial network earlier the coaxial channel between EOC and the CNU is carried out channel measurement and bit loading before carrying out normal service communication; Obtain the bandwidth resources information of said coaxial channel, OLT carries out bandwidth management to CNU according to said bandwidth resources information more uniformly, thereby reduces the bandwidth management level; Raising system operation management efficient, and then the communication efficiency of raising coaxial channel.
EPON that the embodiment of the invention provides and coaxial network method for communicating; Comprise: OEC obtains the bandwidth resources information of coaxial channel; And the up OLT that passes to of the bandwidth resources information of said coaxial channel, OLT carries out allocated bandwidth to the fiber channel between itself and the OEC, and the allocated bandwidth indication information that issues coaxial channel is given OEC; OEC is according to the allocated bandwidth indication information of said coaxial channel, for CNU provides the coaxial channel bandwidth.
Particularly, a kind of EPON that the embodiment of the invention provides and coaxial network method for communicating, as shown in Figure 2, comprising:
Specifically, OEC can be through carrying out the bandwidth resources information that modes such as channel measurement, bit loading are obtained coaxial channel with CNU.Said bandwidth information resource information can comprise the bandwidth resources of subchannel number and each subchannel.
Wherein, when CNU request downlink business, the coaxial bandwidth resources information that OLT can report according to the required bandwidth of said downlink business and OEC is carried out allocated bandwidth to coaxial channel, and is sent to OEC to the allocated bandwidth indication information of said coaxial channel.If OLT will carry out (the Quality of Service such as QoS to CNU; Service quality) operation management such as; So at this moment; The coaxial bandwidth resources information that OLT can report according to the shared bandwidth of relevant QoS mechanism, bandwidth that said downlink business takies and OEC is carried out allocated bandwidth to coaxial channel, and is sent to OEC to the final allocated bandwidth indication information of said coaxial channel.
When CNU request uplink service, OEC is sent to OLT to the upstream bandwidth application, and OLT sends to OEC according to the coaxial bandwidth resources information that the bandwidth and the OEC of said uplink service application reports OLT with coaxial channel allocated bandwidth indication information.Specifically; The coaxial bandwidth resources information that OLT reports according to the bandwidth and the OEC of said uplink service bandwidth application; Through DBA (Dynamic Band Allocation; Dynamic Bandwidth Allocation) algorithm computation goes out the allocated bandwidth indication information of coaxial channel, and coaxial channel allocated bandwidth indication information is sent to OEC through GATE message.
The bandwidth management method that provides of embodiment for a better understanding of the present invention; Below in conjunction with EPoC (EPON over Coaxial Distribution Network; Coaxial distribution network based on EPON) system sets forth as concrete application example, and said EPoC system also can adopt the network architecture as shown in Figure 1, wherein; Fiber optic network between OLT and the OEC is Ethernet passive optical network EPON, and is coaxial network between OEC and the CNU.The bandwidth management method that the embodiment of the invention provides, as shown in Figure 3, comprising:
Wherein, the functional module of OLT is identical with the EPON standard code, and the PHY module of OEC is identical with the EPON standard code also.Here, the MAC of OEC can be reduced to one and act on behalf of MAC, i.e. Agent MAC, and this acts on behalf of MAC can realize the basic functions such as distribution such as range finding and fibre channel bandwidth resource.COX (the Coaxial of OEC; Coaxial) PHY can adopt present DOCSIS (Data Over Cable Service Interface Specification; Wire transmission data-interface business norms) QAM (the Quadrature Amplitude Modulation of standard employing; Quadrature amplitude modulation) demodulation mechanism or other OFDM (Orthogonal Frequency Division Multiplexing that adopts like plug-in alliance of family voice and video standard (HomePlugAV) standard; OFDM) modulation mechanism; The MAC of OEC can be the simplification of the MAC of DOCSIS, such as only keep in DOCSIS or the HomePlugAV standard channel measurement and with the closely-related part of channel.
The tasks such as channel measurement and Bit Allocation in Discrete that OEC and CNU utilize COX PHY and COX MAC to accomplish coaxial channel are obtained the bandwidth resources information capable of using of coaxial channel.
Through above-mentioned steps, OLT has obtained the bandwidth resources information of coaxial channel, and dividing two kinds of situation below is that downlink business and uplink service are further set forth OLT and how uniformly CNU to be carried out bandwidth management.
For downlink business A:
Step 304, as CNU during to OEC request downlink business A, OEC sends on the coaxial channel and carries out the needed bandwidth information of downlink business A to OLT.
Step 305, (Dynamic Band Allocation DBA), comprises fiber channel and coaxial signal is carried out bandwidth resource allocation, and will indicate the DBA information of coaxial channel allocated bandwidth to send to OEC through GATE message for OLT and OEC completion Dynamic Bandwidth Allocation.
The DBA that OLT and OEC carry out has accomplished the bandwidth resource allocation to fiber channel and coaxial channel simultaneously according to communication bandwidth needs, fibre channel bandwidth resource information and the coaxial channel bandwidth resources information of downlink business A.Step 306, OEC is translating into coaxial channel allocated bandwidth indication information from acting on behalf of the DBA information that MAC obtains, and is that CNU provides the coaxial channel of carrying out downlink business A bandwidth according to said coaxial channel allocated bandwidth indication information.
Step 307, OLT carries out the communicating by letter of downlink business A according to the above-mentioned fiber channel of giving with the bandwidth that coaxial channel is distributed respectively with CNU.
For uplink service A ', as shown in Figure 4:
Step 304-1, when CNU to OEC request uplink service A ' time, the EPON MAC of CNU sends request OLT to OEC and is distributed in the message of carrying out the required bandwidth of uplink service A ' on the coaxial channel.
Step 305-1, OEC is distributed in the EPON DBA that the forwards of carrying out the required bandwidth of uplink service A ' on the coaxial channel is given OLT to described request OLT.
Step 306-1, the EPON DBA among the OLT carries out allocated bandwidth to fiber channel and coaxial channel, and will indicate the DBA information of coaxial channel allocated bandwidth to send to the MAC that acts on behalf of of OEC through GATE message.
EPON DBA among the OLT can carry out allocated bandwidth to fiber channel and coaxial channel according to the bandwidth resources information of its fiber channel of grasping and the bandwidth resources information of coaxial channel.
Step 307-1, OEC be translating into coaxial channel allocated bandwidth indication information from acting on behalf of the DBA information that MAC obtains, and be that CNU provides the coaxial channel of carrying out uplink service A ' bandwidth according to said coaxial channel allocated bandwidth indication information.
Method for communicating between above-mentioned a kind of EPON that provides for the embodiment of the invention and the coaxial network; Through giving OLT with the bandwidth resources information reporting of coaxial channel, OLT directly carries out allocated bandwidth to fiber channel and coaxial channel bandwidth, realizes that OLT carries out bandwidth management to CNU uniformly; Thereby reduce OLT carries out bandwidth management mechanism to CNU level; The efficient of elevator system operation management reduces the cost of operation management, and then improves the communication efficiency of coaxial channel.
Based on EPON and the coaxial network method for communicating that above embodiment provides, the embodiment of the invention also provides a kind of bandwidth management system, and said system can be a kind of optical fiber/coaxial mixed access system, adopts the network architecture shown in Figure 1.
Particularly; The bandwidth management system that the embodiment of the invention provides comprises optical line terminal OLT, optical-electrical converter OEC and coaxial network unit CNU; Wherein, Said OLT connects a plurality of CNU through OEC with the mode of putting multiple spot, adopts fiber channel to communicate between said OLT and the said OEC, adopts coaxial channel to communicate between said OEC and the CNU.
Said OEC; Be used to obtain the bandwidth resources information of said coaxial channel; The professional required bandwidth information that said coaxial channel bandwidth resources information and said CNU request is carried out sends to said OLT; And receive the coaxial channel allocated bandwidth indication information that said OLT issues, be that said CNU provides the coaxial channel bandwidth according to said coaxial channel allocated bandwidth indication information.
Said OLT; The professional required bandwidth information that coaxial channel bandwidth resources information that is used for sending according to said OEC and said CNU request are carried out; Said fiber channel and coaxial channel are carried out allocated bandwidth, and coaxial channel allocated bandwidth indication information is handed down to said OEC.
Said CNU is used to cooperate OEC to accomplish obtaining of coaxial channel bandwidth resources information, and carries out corresponding business according to the coaxial channel bandwidth that said OEC provides.
Wherein, Said coaxial channel bandwidth resources information comprises the bandwidth of subchannel number and each subchannel, and said coaxial channel bandwidth resources information is said optical-electrical converter and coaxial network unit carries out channel measurement through coaxial physical layer and coaxial MAC layer and the Bit Allocation in Discrete task is obtained; OEC is sent to said optical line terminal through acting on behalf of MAC layer with said coaxial channel bandwidth resources information.When concrete the application, other courses of work of said bandwidth management system can be with reference to the specific descriptions of above-mentioned said bandwidth management method.
Can find out through above explanation; The bandwidth management system that the embodiment of the invention provides can realize that OLT carries out bandwidth management to CNU uniformly; Reduce OLT carries out bandwidth management mechanism to CNU level; The efficient of elevator system operation management and reduction operation management cost, and then the communication efficiency of raising coaxial channel.
The bandwidth management method and system that provides based on above embodiment; The embodiment of the invention also provides a kind of access device; Said access device can be positioned at the fiber optic network of optical fiber/coaxial mixed access system and the edge of coaxial network, and the described OEC of the foregoing description is set to realize bandwidth management.As shown in Figure 5, the access device that the embodiment of the invention provides comprises that coaxial channel bandwidth resources information acquisition module 501, sending module 502, receiver module 503 and coaxial channel bandwidth provide module 504.
Wherein, coaxial channel bandwidth resources information acquisition module 501 is used to obtain the bandwidth resources information of the coaxial channel between said access device and the CNU;
The coaxial channel bandwidth provides module 504, is used for according to said coaxial channel allocated bandwidth indication information, the coaxial channel bandwidth is provided for said CNU.
Wherein, Said coaxial channel bandwidth resources information comprises the bandwidth of subchannel number and each subchannel, and said coaxial channel bandwidth resources information is through the coaxial physical layer on the said coaxial channel bandwidth resources information acquisition module and coaxial MAC layer carries out channel measurement and the Bit Allocation in Discrete task is obtained; Sending module 502 sends said coaxial channel bandwidth resources information through acting on behalf of MAC layer.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement through hardware.Based on such understanding; All or part of can the coming out that technical scheme of the present invention contributes to background technology with the embodied of software product; This computer software product can be stored in the storage medium, like ROM/RAM, magnetic disc, CD etc., comprises 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 some part of each embodiment of the present invention or embodiment.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (14)
1. a bandwidth management method is characterized in that, comprising:
Obtain the bandwidth resources information of coaxial channel between optical-electrical converter OEC and the coaxial network unit CNU;
The bandwidth resources information of said coaxial channel is sent to optical line terminal OLT;
Receive the coaxial channel allocated bandwidth indication information that said OLT issues according to the bandwidth resources information of said coaxial channel;
The coaxial channel bandwidth is provided for said CNU according to said coaxial channel allocated bandwidth indication information.
2. bandwidth management method as claimed in claim 1 is characterized in that, the bandwidth resources information of said coaxial channel comprises the subchannel number of said coaxial channel and the bandwidth resources of each subchannel.
3. bandwidth management method as claimed in claim 1; It is characterized in that; The MAC layer MAC of said OEC is configured to act on behalf of MAC, and said bandwidth resources information with coaxial channel sends to said OLT and comprises: through the said MAC of agency the bandwidth resources information of said coaxial channel is sent to said OLT.
4. bandwidth management method as claimed in claim 3 is characterized in that, the coaxial physical layer PHY of said OEC adopts quadrature amplitude modulation or OFDM modulation mechanism;
The coaxial MAC layer MAC of said OEC adopts and comprises the channel measurement content among wire transmission data-interface business norms DOCSIS or the voice and video standard HomePlugAV of plug-in alliance of family.
5. bandwidth management method as claimed in claim 1 is characterized in that, also comprises:
The professional required bandwidth information that said OEC carries out said CNU request sends to said OLT;
The professional required bandwidth information that said OLT carries out according to the bandwidth resources information of said coaxial channel and said CNU request is carried out fiber channel and the allocated bandwidth of the coaxial channel between said OEC and the said CNU between said OLT and the said OEC;
Said OLT is handed down to said OEC with coaxial channel allocated bandwidth indication information.
6. bandwidth management system; It is characterized in that; Comprise: optical line terminal OLT, at least one optical-electrical converter OEC and a plurality of coaxial network unit CNU, wherein, said OLT connects said a plurality of CNU through said OEC with the mode of putting multiple spot; Adopt fiber channel to communicate between said OLT and the said OEC, adopt coaxial channel to communicate between said OEC and the CNU;
Said OEC; Be used to obtain the bandwidth resources information of said coaxial channel; The bandwidth resources information of said coaxial channel is sent to said OLT; Receiving the coaxial channel allocated bandwidth indication information that said OLT issues, is that said CNU provides the coaxial channel bandwidth according to said coaxial channel allocated bandwidth indication information;
Said OLT is used for the bandwidth resources information according to the coaxial channel of said OEC transmission, and said coaxial channel allocated bandwidth indication information is handed down to said OEC.
7. bandwidth management as claimed in claim 6 system; It is characterized in that; The bandwidth resources information of said coaxial channel comprises the subchannel number of said coaxial channel and the bandwidth resources of each subchannel, and the bandwidth resources information of said coaxial channel is through coaxial physical layer PHY with coaxial MAC layer MAC carries out channel measurement and Bit Allocation in Discrete is obtained between said OEC and the CNU.
8. bandwidth management as claimed in claim 6 system is characterized in that the MAC layer MAC of said OEC is configured to act on behalf of MAC, and said OEC is sent to said OLT through the said MAC of agency with the bandwidth resources information of said coaxial channel.
9. bandwidth management as claimed in claim 8 system is characterized in that, the coaxial PHY of said OEC adopts quadrature amplitude modulation or OFDM modulation mechanism;
The coaxial MAC of said OEC adopts and comprises the channel measurement content among wire transmission data-interface business norms DOCSIS or the voice and video standard HomePlugAV of plug-in alliance of family.
10. bandwidth management as claimed in claim 6 system is characterized in that, said OEC also is used for the professional required bandwidth information that said CNU request is carried out is sent to said OLT;
Said OLT also is used for the professional required bandwidth information that request is carried out according to the bandwidth resources information of said coaxial channel and said CNU; Carry out fiber channel and the allocated bandwidth of the coaxial channel between said OEC and the said CNU between said OLT and the said OEC, obtain said coaxial channel allocated bandwidth indication information.
11. an access device is characterized in that, comprising: coaxial channel bandwidth resources information acquisition module, sending module, receiver module and coaxial channel bandwidth provide module;
Said coaxial channel bandwidth resources information acquisition module is used to obtain the bandwidth resources information of the coaxial channel between said access device and the coaxial network unit CNU;
Said sending module is used for said coaxial channel bandwidth resources information is sent to optical line terminal OLT;
Said receiver module is used to receive the coaxial channel allocated bandwidth indication information that said OLT issues according to said coaxial channel bandwidth resources information;
Said coaxial channel bandwidth provides module, is used for according to said coaxial channel allocated bandwidth indication information, the coaxial channel bandwidth is provided for said CNU.
12. access device as claimed in claim 11; It is characterized in that; The bandwidth resources information of said coaxial channel comprises the subchannel number of said coaxial channel and the bandwidth resources of each subchannel, and said coaxial channel bandwidth resources information is through the coaxial physical layer on the said coaxial channel bandwidth resources information acquisition module and coaxial MAC layer carries out channel measurement and the Bit Allocation in Discrete task is obtained.
13. access device as claimed in claim 11 is characterized in that, the MAC layer MAC of said access device is configured to act on behalf of MAC, and said sending module sends said OLT through acting on behalf of MAC with the bandwidth resources information of said coaxial channel.
14. access device as claimed in claim 13 is characterized in that, the coaxial physical layer PHY of said access device adopts quadrature amplitude modulation or OFDM modulation mechanism;
The coaxial MAC layer MAC of said access device adopts and comprises the channel measurement content among wire transmission data-interface business norms DOCSIS or the voice and video standard HomePlugAV of plug-in alliance of family.
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| PCT/CN2011/083775 WO2013082813A1 (en) | 2011-12-09 | 2011-12-09 | Bandwidth resource management method, system, and device |
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| WO2014139172A1 (en) * | 2013-03-15 | 2014-09-18 | 华为技术有限公司 | Dynamic bandwidth allocation method, device, and system |
| CN103534981B (en) * | 2013-03-15 | 2017-04-19 | 华为技术有限公司 | Dynamic bandwidth allocation method, apparatus and system |
| CN105027482B (en) * | 2013-04-05 | 2017-11-24 | 华为技术有限公司 | Certification in Ethernet passive optical network and initial key exchange on coaxial network |
| US9838363B2 (en) | 2013-04-05 | 2017-12-05 | Futurewei Technologies, Inc. | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| CN105027482A (en) * | 2013-04-05 | 2015-11-04 | 华为技术有限公司 | Authentication and initial key exchange in ethernet passive optical network over coaxial network |
| CN104685847B (en) * | 2013-08-05 | 2017-11-28 | 华为技术有限公司 | Bandwidth allocation methods, apparatus and system |
| CN104685847A (en) * | 2013-08-05 | 2015-06-03 | 华为技术有限公司 | Bandwidth allocation method, device and system |
| WO2015017969A1 (en) * | 2013-08-05 | 2015-02-12 | 华为技术有限公司 | Bandwidth allocation method, device and system |
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| WO2013082813A1 (en) | 2013-06-13 |
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