CN103209185B - A kind of transmitting message at optical interface and device - Google Patents
A kind of transmitting message at optical interface and device Download PDFInfo
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- CN103209185B CN103209185B CN201310117220.8A CN201310117220A CN103209185B CN 103209185 B CN103209185 B CN 103209185B CN 201310117220 A CN201310117220 A CN 201310117220A CN 103209185 B CN103209185 B CN 103209185B
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Abstract
The invention discloses a kind of transmitting message at optical interface and device, in order to save the transmission bandwidth of Ir interface, and reduce the process load of RRU.The method is: BBU sidelight slogan and RRU ID are encoded to RRU MAC Address by BBU, make BBU can determine which root optical fiber is Ethernet message to be dealt into easily, and multiple RRU of concatenation under the light mouth of BBU can be further discriminated between, so, BBU is made accurately RRU to be addressed, just can realize accurately sending of Ethernet message from without by Ethernet message broadcast to all light mouths, and then effectively save the transmission bandwidth of Ir interface, namely improve RRU and manage bandwidth chahnel；Accordingly, RRU just can obtain, without processing substantial amounts of broadcasting packet, the Ethernet message that self should process, thus effectively reducing the process load of RRU.
Description
Technical field
The present invention relates to the communications field, particularly to a kind of transmitting message at optical interface and device.
Background technology
In a communications system, network management data is generally at BBU(BaseBandUnit, Base Band Unit) and RRU(RemoteRadioUnit, Remote Radio Unit) between IR interface on to transmit.Consult shown in Fig. 1, the Ir interface between BBU and RRU, adopt optical fiber to connect, a usual BBU can pick out 6 optical interfaces to connect RRU, further, consults shown in Fig. 2, according to the standard-required of Ir, an optical interface can concatenate multiple RRU, can meet at most 6 grades of RRU.
BBU sends out management message to RRU, is packaged in being transmitted in Ethernet message, as shown in Figure 3.Management message is encapsulated in Ethernet message by the CPU in BBU, issue the FPGA(FieldProgrammableGateArray of this locality, field programmable gate array), Ethernet message is encapsulated into CPRI(TheCommonPublicRadioInterface by FPGA again, general radio interface) frame, and it is transferred to RRU in the optical fiber of Ir interface.BBU adopts MAC(MediumAccessControl at ether layer, medium education) address is addressed, and FPGA mainly realizes wireless data service and processes, there is no ether function of exchange, if realizing this function, need to change the FPGA that disposal ability is higher, internal memory is bigger, and this will increase product cost, therefore in existing scheme, FPGA does not differentiate between which RRU is Ethernet message to issue, FPGA can by the Ethernet message that receives all transmission primaries in every optical fiber, shown in Fig. 3.
Adopting such scheme, FPGA will not distinguish which RRU is Ethernet message go to, place Ethernet message can all be transmitted portion on every optical fiber, thus the serious waste transmission bandwidth of Ir interface.Such as, the management bandwidth chahnel assuming every optical fiber on Ir interface is 10Mbps, and a RRU can exclusively enjoy the bandwidth of 10Mbps originally, but, as shown in Figure 3, assume BBU on four optical fiber all to RRU transfer management message, then management message can repeat on multifiber transmission, then, the actual bandwidth that can only enjoy 2.5Mbps of RRU, thus the serious waste resource of Ir interface, this point is when BBU is to RRU updating software release, contradiction is especially prominent.
On the other hand, if RRU have received useless management message, the disposal ability of RRU can be wasted, because substantial amounts of management message is transferred to RRU by Ir interface, RRU can judge that whether the target MAC (Media Access Control) address of management message is the MAC Address of this RRU, thus judging that the management message received is forwarded to high level or abandons, owing to repeating that the management message sent much is not intended for this RRU in a large number, thus the disposal ability of RRU can be wasted.
Summary of the invention
The embodiment of the present invention provides a kind of transmitting message at optical interface and device, in order to save the transmission bandwidth of Ir interface, and reduces the process load of RRU.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A kind of light mouth message method, including:
Generate to the RRU message carrying RRUMAC address sent, described RRUMAC address at least includes the BBU sidelight slogan of described RRU concatenation and the RRUID of described RRU；
According to the BBU sidelight slogan of instruction in described RRUMAC address, described message is transported to described RRU by corresponding light oral instructions.
A kind of light mouth message receival method, including:
Receive the BBU message carrying RRUMAC address sent, described RRUMAC address at least includes BBU sidelight slogan and RRUID；
Determine when the BBU sidelight slogan indicated in the RRUMAC address carried in described message and RRUID mate with local information, described message is carried out dissection process.
A kind of light mouth message dispensing device, including:
Main control unit, for generating to the RRU message carrying RRUMAC address sent, at least includes the BBU sidelight slogan of described RRU concatenation and the RRUID of described RRU in described RRUMAC address；
Communication unit, for transporting to described RRU by described message by corresponding light oral instructions according to the BBU sidelight slogan of instruction in described RRUMAC address.
A kind of light mouth message receiving apparatus, including:
Communication unit, for receiving the BBU message carrying RRUMAC address sent, at least includes BBU sidelight slogan and RRUID in described RRUMAC address；
Processing unit, when the BBU sidelight slogan and RRUID for determining instruction in the RRUMAC address carried in described message mates with local information, carries out dissection process to described message.
In the embodiment of the present invention, BBU sidelight slogan and RRUID are encoded to RRUMAC address by BBU, make BBU can determine which root optical fiber is Ethernet message to be dealt into easily, and multiple RRU of concatenation under the light mouth of BBU can be further discriminated between, so, BBU is made accurately RRU to be addressed, from without the accurate transmission that Ethernet message broadcast to all light mouths just can realize Ethernet message, and then effectively save the transmission bandwidth of Ir interface, namely improve RRU and manage bandwidth chahnel；Accordingly, RRU just can obtain, without processing substantial amounts of broadcasting packet, the Ethernet message that self should process, thus effectively reducing the process load of RRU.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is BBU and RRU annexation schematic diagram under prior art；
Fig. 3 is that under prior art, BBU sends Ethernet message schematic diagram；
Fig. 4 is RRUMAC address structure schematic diagram in the embodiment of the present invention in the embodiment of the present invention；
Fig. 5 is RRU access BBU flow chart state in the embodiment of the present invention；
Fig. 6 is that in the embodiment of the present invention, BBU adopts RRUMAC address to send message flow chart at light mouth；Fig. 7 is that in the embodiment of the present invention, RRU adopts RRUMAC address to receive message flow chart at light mouth；
Fig. 8 is BBU illustrative view of functional configuration in the embodiment of the present invention；
Fig. 9 is RRU illustrative view of functional configuration in the embodiment of the present invention.
Detailed description of the invention
In order to save the transmission bandwidth of Ir interface, and reduce the process load of RRU, in the embodiment of the present invention, compound RRUID is adopted to replace MAC Address to carry out RRU addressing, so, both the transmission means of management message can have been changed into by broadcast on multifiber and specify clean culture on optical fiber, the operand that addressing processes can have been reduced again.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Consult shown in Fig. 4, in the embodiment of the present invention, adopt combined type RRUID as RRUMAC address, each RRU to be addressed.Consult shown in Fig. 4, new RRUMAC address includes the RRUID of BBU sidelight slogan and distribution, adopt in this way, RRUMAC address can no longer adopt the unique discernible MAC Address in the whole world, and between different Ir interfaces (between namely different BBU sidelight mouths), RRUID can reuse.
Such as, RRUMAC address can be designated as: A+1, and wherein, A is BBU sidelight slogan, and 1 is the RRUID of first RRU of concatenation on light mouth A；
Again such as, RRUMAC address can be designated as: A+2, and wherein, A is BBU sidelight slogan, and 2 is the RRUID being serially connected in second RRU after first RRU on light mouth A；
Again such as, RRUMAC address can be designated as: B+1, and wherein, B is BBU sidelight slogan, and 1 is the RRUID of first RRU of concatenation on light slogan B.
In the embodiment of the present invention, BBU sidelight slogan and RRUID are notified RRU by BBU in handshake phase.Such as, before transfer management message, shaken hands by CPRI frame between BBU and RRU, in handshake phase, BBU carries BBU sidelight slogan (1 byte) and RRUID(1 byte in the physical layer control word in the CPRI frame of transmission), so, RRU can obtain BBU sidelight slogan (1 byte) and RRUID(1 byte).
Accordingly, RRU does not first configure mac controller upon actuation.And after being to wait for being shaken hands by CPRI frame on optical fiber with BBU, by RRUMAC address new to the BBU sidelight slogan obtained and RRUID composition, then, further according to new RRUMAC address configuration mac controller.After treating RRUMAC address configuration, when BBU sends management message to RRU, management message is dealt on the light mouth specified by the FPGA in BBU according to the BBU sidelight slogan managed in the RRUMAC address that message is carried, and on this light mouth, the RRU of concatenation determines whether the management message processing reception according to the RRUID carried in management message.
Consult shown in Fig. 5, in the embodiment of the present invention, in the pre-configured stage, BBU can be that concatenation is respectively configured uniquely to identify the RRUMAC address of RRU to each local RRU, and carrying out CPRI handshake phase with RRU side, the RRUMAC address of configuration is sent to each RRU, and when receiving each RRU access request message sent, access each RRU, and set up the corresponding relation between the RRUMAC address of each RRU and BBU sidelight slogan respectively.Detailed process is as follows:
Step 500:RRU starts.
After RRU starts, first do not configure mac controller, namely first do not configure RRUMAC address.
Being shaken hands by fiber-optic transfer CPRI frame between step 510:BBU and RRU, BBU sidelight slogan and RRUID are distributed to each RRU by BBU.
In the embodiment of the present invention, if being serially connected with multiple RRU on certain light mouth, then BBU can distribute multiple RRUID, and the string limit each RRU on this light mouth can be successively read a RRUID, generates respective RRUMAC address in conjunction with unified BBU sidelight slogan.In subsequent embodiment, for ease of describing, only illustrate concatenating a RRU.
BBU sidelight slogan and the RRUID of acquisition are defined as new RRUMAC address by step 520:RRU, and adopt this RRUMAC address configuration mac controller.
Step 530:RRU sends access request message to BBU, and in this access request message, the source MAC of encapsulation is new RRUMAC address.
After step 540:BBU receives the access request message of RRU, BBU sets up the corresponding relation between the RRUMAC address of each RRU and BBU sidelight slogan, and replys access response message to RRU.
After configuring new RRUMAC address and RRU access BBU, BBU just can adopt newly configured RRUMAC address to transmit message at Ir interface in follow-up flow process, and idiographic flow is consulted shown in Fig. 6:
Step 600:BBU generates to the RRU message carrying RRUMAC address sent, and wherein, this RRUMAC address at least includes the BBU sidelight slogan of above-mentioned RRU concatenation and the RRIID of above-mentioned RRU.
Concrete, the Ethernet message of the CPU generation message in BBU, and the target MAC (Media Access Control) address of this Ethernet message is extended this as the new RRUMAC address that BBU is above-mentioned RRU configuration.
Step 610:BBU according to the BBU sidelight slogan of instruction in above-mentioned RRUMAC address by the message that generates by corresponding light port transmission to above-mentioned RRU.
Such as: the CPU in BBU is after generating Ethernet message, this Ethernet message is sent to the FPGA on BBU, according to second byte of the target MAC (Media Access Control) address of Ethernet message, namely FPGA would know that Ethernet message needs to be transferred to which light mouth on which root optical fiber, then this Ethernet message will be packaged in CPRI frame in the optical fiber determined and transmit.
Consulting shown in Fig. 7, corresponding with above-described embodiment, the detailed process that RRU receives the BBU message sent according to newly configured RRUMAC address is as follows:
Step 700:RRU receives the BBU message carrying RRUMAC address sent, and at least includes BBU sidelight slogan and RRUID in this RRUMAC address.
Step 710:RRU determines when the BBU sidelight slogan indicated in the RRUMAC address carried in the message of reception and RRUID mate with local information, and this message is carried out dissection process.
Particularly as follows: when RRU receives the BBU message sent, if it is determined that the target MAC (Media Access Control) address carried in corresponding Ethernet message is newly configured RRUMAC address, then judge whether this message should send the light mouth to this RRU BBU side concatenated according to the BBU sidelight slogan of instruction in this RRUMAC address, to determine whether this message should be processed by this RRU according to the RRUID of instruction in this RRUMAC address.If the BBU sidelight slogan indicated in above-mentioned RRUMAC address and RRUID, the BBU sidelight slogan concatenated with this locality and RRUID all mate, namely in RRUMAC address, the BBU sidelight slogan of instruction is the light slogan of local concatenation, and the RRUID of RRUMAC address instruction is local RRUID, then the message received is resolved and subsequent treatment by RRU.
Certainly, if cascade is serially connected with multiple RRU on a BBU sidelight slogan, then the message that BBU sends can be transmitted one by one between each RRU, until finding correct RRU process.
It is also preferred that the left mac controller in RRU decision message should by processing locality time, upper application software can be transferred to process the message of reception, not repeat them here.
Based on above-described embodiment, consulting shown in Fig. 8, in the embodiment of the present invention, BBU includes main control unit 80 and communication unit 81, wherein,
Main control unit 80, for generating to the RRU message carrying RRUMAC address sent, at least includes the BBU sidelight slogan of above-mentioned RRU concatenation and the RRUID of above-mentioned RRU in this RRUMAC address；Specifically, main control unit 80 can be the CPU in BBU.
Communication unit 81, for according to the BBU sidelight slogan of instruction in above-mentioned RRUMAC address by the message that generates by corresponding light port transmission to above-mentioned RRU；Concrete, communication unit 81 can be the FPGA in BBU.
In the present embodiment, main control unit 80 and other operations performed by communication unit 81 have elaborated in embodiment before, do not repeat them here.
Consulting shown in Fig. 9, in the embodiment of the present invention, RRU includes communication unit 90 and processing unit 91, wherein,
Communication unit 90, for receiving the BBU message carrying RRUMAC address sent, at least includes BBU sidelight slogan and RRUID in this RRUMAC address；Concrete, communication unit 90 can be the MAC distributor on RRU；
Processing unit 91, when the BBU sidelight slogan and RRUID for determining instruction in the RRUMAC address carried in the message of reception mates with local information, carries out dissection process to this message；Concrete, processing unit 91 can be the CPU on RRU.
In the present embodiment, communication unit 90 and other operations performed by processing unit 91 have elaborated in embodiment before, do not repeat them here.
In sum, in the embodiment of the present invention, BBU sidelight slogan and RRUID are encoded to RRUMAC address by BBU, make BBU can determine which root optical fiber is Ethernet message to be dealt into easily, and multiple RRU of concatenation under the light mouth of BBU can be further discriminated between, so, BBU is made accurately RRU to be addressed, from without the accurate transmission that Ethernet message broadcast to all light mouths just can be realized Ethernet message, and then effectively save the transmission bandwidth of Ir interface, namely improve RRU and manage bandwidth chahnel；Simultaneously, by BBU sidelight slogan coding in RRUMAC address, it is also possible to make the FPGA in BBU need not realize the ethernet switch function of complexity, Ethernet message just can be realized to the forwarding determining optical fiber, thus saving disposal ability and the memory requirements of FPGA, reduce product cost；Accordingly, RRU just can obtain, without processing substantial amounts of broadcasting packet, the Ethernet message that self should process, thus effectively reducing the process load of RRU.
Further, in the embodiment of the present invention, RRUMAC address can carry out CPRI handshake phase at optical fiber link and configure, and RRUMAC address is not globally unique, and this makes the RRUMAC address between the RRU of BBU to reuse.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect.And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art are once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, the embodiment of the present invention can be carried out various change and the modification spirit and scope without deviating from the embodiment of the present invention by those skilled in the art.So, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a light mouth message method, it is characterised in that including:
It is respectively configured uniquely to identify the RRU MAC address of RRU for concatenation to each local radio frequency remote unit RRU；
Carrying out general radio interface CPRI frame handshake phase with RRU side, the RRUMAC address of configuration is being sent to each RRU；
When receiving each RRU access request message sent, access each RRU, and set up the corresponding relation between each RRUMAC address and Base Band Unit BBU sidelight slogan respectively；
Generate to the RRU message carrying RRUMAC address sent, described RRUMAC address at least includes the BBU sidelight slogan of described RRU concatenation and the RRUID of described RRU；
According to the BBU sidelight slogan of instruction in described RRUMAC address, described message is transported to described RRU by corresponding light oral instructions.
2. the method for claim 1, it is characterised in that generate to the RRU message carrying RRUMAC address sent, including:
Generate to the RRU Ethernet message sent, the target MAC (Media Access Control) address of this Ethernet message is extended this as described RRUMAC address.
3. method as claimed in claim 2, it is characterised in that described message is transported to described RRU by corresponding light oral instructions according to the BBU sidelight slogan of instruction in described RRUMAC address, including:
Target MAC (Media Access Control) address according to the Ethernet message generated determines Guang Kou position；
Described Ethernet message is encapsulated in CPRI frame and transports to described RRU by described smooth oral instructions.
4. a light mouth message receival method, it is characterised in that including:
Carrying out general radio interface CPRI frame handshake phase with Base Band Unit BBU side, receiving the BBU BBU sidelight slogan sent and radio frequency remote unit RRU ID, and it can be used as local RRU MAC address；
Access request message is sent, to access BBU to BBU；
Receive the BBU message carrying RRUMAC address sent, described RRUMAC address at least includes BBU sidelight slogan and RRUID；
Determine when the BBU sidelight slogan indicated in the RRUMAC address carried in described message and RRUID mate with local information, described message is carried out dissection process.
5. method as claimed in claim 4, it is characterised in that determine when the BBU sidelight slogan indicated in the RRUMAC address carried in described message and RRUID mate with local information, described message is carried out dissection process, including:
Determine that in the RRUMAC address carried in described message, the BBU sidelight slogan of instruction is the BBU sidelight slogan of local concatenation, and determine when the RRUID that the RRUMAC address carried in described message indicates is local RRUID, described message is carried out dissection process.
6. a light mouth message dispensing device, it is characterised in that including:
Main control unit, for being respectively configured uniquely to identify the RRU MAC address of RRU for concatenation to each local radio frequency remote unit RRU；Carrying out general radio interface CPRI frame handshake phase with RRU side, the RRUMAC address of configuration is being sent to each RRU；When receiving each RRU access request message sent, access each RRU, and set up the corresponding relation between each RRUMAC address and Base Band Unit BBU sidelight slogan respectively；Generate the message carrying RRU MAC address sent to radio frequency remote unit RRU, described RRUMAC address at least includes the Base Band Unit BBU sidelight slogan of described RRU concatenation and the RRUID of described RRU；
Communication unit, for transporting to described RRU by described message by corresponding light oral instructions according to the BBU sidelight slogan of instruction in described RRUMAC address.
7. device as claimed in claim 6, it is characterised in that described main control unit generates to the RRU message carrying RRUMAC address sent, including:
Generate to the RRU Ethernet message sent, the target MAC (Media Access Control) address of this Ethernet message is extended this as described RRUMAC address.
8. device as claimed in claim 7, it is characterised in that described message is transported to described RRU by corresponding light oral instructions according to the BBU sidelight slogan of instruction in described RRUMAC address by described communication unit, including:
Target MAC (Media Access Control) address according to the Ethernet message generated determines Guang Kou position；
Described Ethernet message is encapsulated in CPRI frame and transports to described RRU by described smooth oral instructions.
9. a light mouth message receiving apparatus, it is characterised in that including:
Communication unit, for carrying out general radio interface CPRI frame handshake phase with Base Band Unit BBU side, receives the BBU BBU sidelight slogan sent and radio frequency remote unit RRU ID, and it can be used as local RRU MAC address；Access request message is sent, to access BBU to BBU；Receive the Base Band Unit BBU message carrying Remote Radio Unit medium education RRUMAC address sent, described RRUMAC address at least includes BBU sidelight slogan and RRUID；
Processing unit, when the BBU sidelight slogan and RRUID for determining instruction in the RRUMAC address carried in described message mates with local information, carries out dissection process to described message.
10. device as claimed in claim 9, it is characterised in that described processing unit is determined when the BBU sidelight slogan indicated in the RRUMAC address carried in described message and RRUID mate with local information, and described message is carried out dissection process, including:
Determine that in the RRUMAC address carried in described message, the BBU sidelight slogan of instruction is the BBU sidelight slogan of local concatenation, and determine when the RRUID that the RRUMAC address carried in described message indicates is local RRUID, described message is carried out dissection process.
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| CN103607242B (en) * | 2013-11-22 | 2016-03-02 | 大唐移动通信设备有限公司 | The cut-in method of a kind of RRU and equipment |
| WO2017035806A1 (en) * | 2015-09-02 | 2017-03-09 | 华为技术有限公司 | Method for transmitting data, forward transmission device and cascaded networking |
| CN107438257B (en) * | 2016-05-26 | 2020-04-17 | 大唐移动通信设备有限公司 | IR frame format conversion method and device for BBU interface board of baseband processing unit |
| CN107888713B (en) * | 2016-09-30 | 2021-10-01 | 中兴通讯股份有限公司 | Method and device for dynamically allocating MAC address and access equipment |
| CN112954721B (en) * | 2019-11-26 | 2023-05-16 | 中兴通讯股份有限公司 | Backhaul method and unit, data distribution method and controller, network system and medium |
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