CN101998675A - Radio equipment access method and device and communication system - Google Patents
Radio equipment access method and device and communication system Download PDFInfo
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- CN101998675A CN101998675A CN2009101656572A CN200910165657A CN101998675A CN 101998675 A CN101998675 A CN 101998675A CN 2009101656572 A CN2009101656572 A CN 2009101656572A CN 200910165657 A CN200910165657 A CN 200910165657A CN 101998675 A CN101998675 A CN 101998675A
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Abstract
The embodiment of the invention discloses a radio equipment access method, a radio equipment access device and a communication system. Radio equipment (RE) with an adjustable optical module is adopted; when the RE with the adjustable optical module accesses an optical distribution network (ODN), master port equipment selects a transmission rate, sends common public radio interface (CPRI) downlink frames at the selected transmission rate and receives CPRI uplink frames carrying identifier information of slave port equipment at a rate same as the transmission rate; if the CPRI uplink frames at the rate same as the transmission rate are received in the preset time, a wavelength assignment table of the master port equipment is updated according to the identifier information of the slave port equipment; and the master port equipment informs the slave port equipment of a wavelength assignment result according to the wavelength assignment table so as to complete the access of the RE. The scheme can reduce the cost of storage and operation and maintenance.
Description
Technical field
The present invention relates to communication technical field, be specifically related to wireless device cut-in method, device and communication system.
Background technology
Common public radio interface (CPRI, Common Public Radio Interface) be radio equipment controller (REC in the wireless base station device, Radio Equipment Controller) and the interface standard between the wireless device (RE, Radio Equipment).The link of CPRI (link) is meant the two-way link between direct-connected REC and RE or two the RE nodes.The CPRI link of operating state comprises main (Master) port, two-way link and from (Slave) port.From the master port of CPRI link to being down direction from port direction; Is up direction from the CPRI link from port to the master port direction.
What REC and RE adopted is point-to-point communication.During present CPRI used, REC and RE generally used the optical module of fixed wave length and two fine, i.e. optical fiber of each direction, and only transmit the light signal of a fixed wave length (850nm or 1310nm or 1550nm) in optical fiber.
In existing Access Network,, also to realize radio communication, mobile communication etc. except realizing internet (Internet) online, phone, cable TV.If every kind of business is all laid the optical fiber of oneself, then be significant wastage to resource.For saving fiber resource, industry has proposed by existing passive optical-fiber network (PON, Passive Optical Network) optical distribution network (ODN, Optical Distribution Network) demand of transmission CPRI link data, can pass through wavelength division multiplexing (WDM, Wavelength DivisionMultiplexing) mode several CPRI links that superpose in the ODN network, wherein, each CPRI link uses a pair of wavelength to be respectively applied for uplink downlink.In the prior art, the optical module of REC and RE all needs to be equipped with the optical module with specific transmitting-receiving wavelength, and promptly the optical module of fixed wave length can make RE normally be linked in the system.But, adopt the scheme of the optical module of fixed wave length can cause storing in a warehouse higher with the cost of O﹠M.
Summary of the invention
The embodiment of the invention provides a kind of wireless device cut-in method, device and communication system, can reduce the cost of storage and O﹠M.
A kind of wireless device cut-in method comprises:
By selected transmission rate from master port equipment to sending the common public radio interface CPRI downlink frame from port device;
Receive the CPRI uplink frame that sends from port device with the described selected identical speed of transmission rate, carry described identification information in the described CPRI uplink frame from port device;
If in Preset Time, receive and this transmission rate CPRI uplink frame of same rate mutually, then according to the Wavelength Assignment table of described update of identification information master port equipment from port device, then according to the Wavelength Assignment table with the Wavelength Assignment result notification from port device.
A kind of wireless device cut-in method comprises:
Configuration is from the reception wavelength of port device;
Receive the CPRI downlink frame by a selected transmission rate, carry up wavelength information, downstream wavelength information and wavelength user mode information in the described CPRI downlink frame;
If in Preset Time, receive and this transmission rate CPRI downlink frame of same rate mutually, judge then whether the up wavelength and the downstream wavelength that receive up wavelength information and downstream wavelength information correspondence are assigned with;
When described up wavelength and downstream wavelength are not assigned with, according to the described up wavelength information configuration emission wavelength that receives, and send and to carry from the CPRI uplink frame of the identification information of port device, with its inner Wavelength Assignment table of notice master port renewal of the equipment.
A kind of master port equipment comprises master port transmitter, master port receiver and processing unit;
The master port transmitter is used to select a transmission rate, and with described transmission rate to send the CPRI downlink frame from port device;
The master port receiver, the transmission rate that is used for selecting with the master port transmitter receives the CPRI uplink frame that sends from port device, carries described identification information from port device in the described CPRI uplink frame;
Processing unit, be used in Preset Time, receiving and this transmission rate mutually during the CPRI uplink frame of same rate when the master port receiver, according to the Wavelength Assignment table of described update of identification information self from port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then.
A kind of from port device, comprise the wavelength configuration unit, from end receiver and processing unit;
The wavelength configuration unit is used to dispose the operation wavelength from end receiver;
From end receiver, be used to select a transmission rate, and receive the CPRI downlink frame with the transmission rate of this selection, carry up wavelength information, downstream wavelength information and wavelength user mode information in the described CPRI downlink frame;
Processing unit, be used for when receiving in Preset Time from end receiver and this transmission rate CPRI downlink frame of same rate mutually, and when the wavelength of up wavelength information of determining to receive and downstream wavelength information correspondence is not assigned with, according to the operation wavelength of the up wavelength information configuration that receives from the port transmitter, and notice sends the CPRI uplink frame carry from the port device identification information from the port transmitter, with its inner Wavelength Assignment table of notice master port renewal of the equipment.
A kind of communication system comprises master port equipment and from port device;
Described master port equipment, be used for carrying up wavelength information by selected first transmission rate transmission, the CPRI downlink frame of downstream wavelength information and wavelength user mode information is given from port device, receive from carrying that port device sends with described first transmission rate from the CPRI uplink frame of the identification information of port device, and when in first Preset Time, receiving and this first transmission rate mutually during the CPRI uplink frame of same rate, according to the Wavelength Assignment table of described update of identification information self from port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then;
Described from port device, be used to select one second transmission rate, and with described transmission rate reception master port equipment transmission CPRI downlink frame, and when in second Preset Time, receiving and this second transmission rate mutually during the CPRI downlink frame of same rate, dispose its emission wavelength and send the CPRI uplink frame of carrying from the identification information of port device to master port equipment according to the described up wavelength information that receives.
The embodiment of the invention has adopted the tunable optical module in RE, then when this RE with tunable optical module inserts the ODN network, by transmission rate of master port choice of equipment, transmission rate with this selection sends the CPRI downlink frame on the one hand, receive the CPRI uplink frame with the identical speed of described transmission rate on the other hand, wherein, carry identification information in the CPRI uplink frame from port device, if in Preset Time, receive and this transmission rate CPRI uplink frame of same rate mutually, then basis is from the Wavelength Assignment table of the update of identification information master port equipment of port device, then according to the Wavelength Assignment table with the Wavelength Assignment result notification from port device, to finish the access of wireless device.Because the RE in this scheme has adopted the tunable optical module, thus do not need for each wavelength all provides an optical module, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram of the RE cut-in method that provides of the invention process one;
Fig. 2 is the method flow diagram of the RE cut-in method that provides of the invention process two;
System's scene schematic diagram when Fig. 3 is the Wavelength Assignment module as module of REC;
System's scene schematic diagram when Fig. 4 is the Wavelength Assignment module as the equipment that is independent of REC;
Another system's scene schematic diagram when Fig. 5 is the Wavelength Assignment module as the equipment that is independent of REC;
Fig. 6 is the method flow diagram of the RE cut-in method that provides of the invention process two;
Fig. 7 is the method flow diagram of the RE cut-in method that provides of the invention process two;
Fig. 8 sets up the scene schematic diagram that the CPRI link carries out the wave division multiplex mode transmission between REC and the RE;
Fig. 9 sets up the scene schematic diagram that the CPRI link carries out the wave division multiplex mode transmission between RE and the RE;
Figure 10 is the structural representation of the master port equipment that provides of the embodiment of the invention;
Figure 11 is the structural representation from port device that the embodiment of the invention provides;
Figure 12 is the structural representation of the communication equipment that provides of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention provides a kind of wireless device cut-in method, device and communication system.Below be elaborated respectively.
Embodiment one,
This example will be described from the angle of master port equipment.This master port equipment is specifically as follows RE, also can be REC.Optical module in the master port equipment can be the optical module of fixed wave length, also can be the tunable optical module, comprises master port transmitter and master port receiver in the optical module.
The wireless device cut-in method that present embodiment provides can comprise: select a transmission rate, and send the CPRI downlink frame with the transmission rate of this selection by the master port transmitter; With identical speed, promptly receive the CPRI uplink frame by the master port receiver with this transmission rate, wherein, carry identification information in the CPRI uplink frame from port device; If in preset time T 1, receive correct CPRI uplink frame, promptly with this transmission rate CPRI uplink frame of same rate mutually, according to the Wavelength Assignment table in the CPRI uplink frame that receives from the update of identification information self of port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then, to finish the access of the RE with tunable optical module.
Particularly, see also Fig. 1, the idiographic flow of the wireless device cut-in method that present embodiment provides can comprise:
101, select a transmission rate, and send the CPRI downlink frame by the master port transmitter with the transmission rate of this selection;
It should be noted that, can carry up wavelength information, downstream wavelength information and wavelength user mode information in this CPRI downlink frame.Described up wavelength information, downstream wavelength information and wavelength user mode information can be determined according to pre-configured Wavelength Assignment table.Wherein,
Described downstream wavelength information is corresponding to the operation wavelength (being also referred to as the emission wavelength of master port equipment) of master port transmitter and from the operation wavelength (being also referred to as the reception wavelength from port device) of end receiver;
Described up wavelength information is corresponding to the operation wavelength (being also referred to as the reception wavelength of master port equipment) of master port receiver and from the operation wavelength (being also referred to as the emission wavelength from port device) of port transmitter;
Described wavelength user mode information refers to the user mode information of up wavelength and downstream wavelength, and (a up wavelength always has its corresponding downstream wavelength, promptly, up wavelength and downstream wavelength always exist in pairs, general, can be called as corresponding up wavelength and downstream wavelength a pair of wavelength or wavelength to), the initial value of this wavelength user mode information can be set to unallocated state.
In addition, before step 101, if master port equipment is REC, and what should use as the REC of master port equipment is the tunable optical module, then can be up wavelength of tunable optical module assignment and downstream wavelength, dispose the operation wavelength of master port transmitter then according to the downstream wavelength of distributing earlier for this optical module distributes a pair of untapped wavelength, and according to the operation wavelength of the up wavelength configuration master port receiver that distributes, and upgrade the Wavelength Assignment table.If use the optical module (being nonadjustable optical module) of fixed wave length as the REC of master port equipment, then this step can be skipped.
102, receive the CPRI uplink frame with the speed identical with this transmission rate by the master port receiver, if receive correct CPRI uplink frame in preset time T 1, then execution in step 103; If do not receive correct CPRI uplink frame in the time at T1, then execution in step 104.
Wherein, described correct CPRI uplink frame is meant and this transmission rate CPRI uplink frame of same rate mutually; Described preset time T 1 can be rule of thumb or standard code determine, such as, 0.9～1.1s need adjust according to the wavelength regulation time.It should be noted that, can carry identification information in the CPRI uplink frame, such as sequence number from port device from port device.If described is RE from port device, then described CPRI uplink frame portability RE sequence number (SN, Serial Number); Certainly, if be REC from port device, then can carry in the CPRI uplink frame this moment sequence number or the REC of REC sign (ID, Identity).This RE sequence number (RE-SN) is used to identify RE, and REC sequence number or REC-ID are used to identify REC.
In the specific implementation, can be by in the CPRI uplink frame, keeping the sequence number that (reserved) field is carried RE or REC, this reserved field need be pre-defined in the CPRI agreement, certainly, also can carry by increase new field in the CPRI uplink frame.
103, can determine earlier at this up wavelength inserts whether conflict is arranged, such as, by REC uplink optical signal is detected as master port equipment, if detect the uplink optical signal conflict, as detect dropout (LOS, Loss of Signal) signal, then showing has two or more RE to apply for that this wavelength is to (being the up wavelength and the downstream wavelength of distributing in the step 101), the synchronous regime that need turn back to the starting state machine is restarted rate consulation, promptly re-executes step 101; Otherwise, represent that then up wavelength inserts not conflict.
Insert not conflict if determine up wavelength, then according to the identification information in the CPRI uplink frame that receives from port device, Wavelength Assignment table such as RE sequence number update self, then according to the Wavelength Assignment table with Wavelength Assignment result notification RE, the synchronization negotiation that can carry on an agreement subsequently operation is to finish the access of the RE with tunable optical module.
For example, RE sequence number in the CPRI uplink frame that receives is write in the Wavelength Assignment table and up wavelength and the corresponding field of downstream wavelength, and described up wavelength and the pairing wavelength user mode of downstream wavelength are set to distribution state, and then, according to this Wavelength Assignment table configuration CPRI downlink frame, promptly in the CPRI downlink frame, carry up wavelength information and downstream wavelength information, and the wavelength user mode information in the renewal CPRI downlink frame, then this CPRI downlink frame is sent to RE, enter next step state then, the synchronization negotiation that promptly carries on an agreement operation is to finish the access of the RE with tunable optical module.
Be to be understood that, in the described step 103, determine up wavelength inserts whether conflict is arranged for optional, in specific embodiment, when in Preset Time, receiving and this transmission rate mutually during the CPRI uplink frame of same rate, can be directly according to the Wavelength Assignment table of described update of identification information self from port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then.
It should be noted that, in specific embodiment, master port equipment also can be safeguarded described Wavelength Assignment table according to actual needs, such as when losing from port device synchronously or rolling off the production line, the wavelength of correspondence is set to unallocated state to (up wavelength and downstream wavelength) pairing wavelength user mode, and removes corresponding to the port device sequence number.
104, reselect a transmission rate, return the step of execution, promptly return execution in step 101 with the transmission rate transmission CPRI downlink frame of this selection.
Wherein, the system of selection of the transmission rate in step 101 and the step 104 is: begin to select from the highest speed, gradually changing down.If minimum speed does not realize that the highest speed is returned in redirect, restarts the rate consulation process synchronously yet.
When carrying out rate consulation, Z.2.0, master port equipment is writing the highest CPRI version that it is supported, Z.66.0 and Z.194.0 writing High-Level Data Link Control (HDLC, High LevelData Link Control protocol) and the Ethernet speed that it is supported respectively.
It should be noted that, more than operation all is under the synchronous regime at CPRI major state machine and carries out, about other states of required experience when port device inserts,, can operate referring to existing technology such as follow-up protocol synchronization negotiation, C/M rate consulation state etc.
As from the foregoing, when master port equipment is REC, when port device is RE, by at REC internal configurations Wavelength Assignment table, and REC determines wavelength and wavelength user mode information and sends to RE by the CPRI downlink frame according to described Wavelength Assignment table, and when RE inserts, upgrade described Wavelength Assignment table, thereby allow to have the smooth connecting system of RE of tunable optical module.As seen, because the RE in this scheme can adopt the tunable optical module, so do not need all to prepare a specific optical module, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M for each wavelength.
Embodiment two,
This example will be described from the angle from port device.Should can be RE from port device, and the optical module from port device can be the tunable optical module, comprises from the port transmitter with from end receiver in this tunable optical module.
The wireless device cut-in method that present embodiment provides can comprise: configuration from the reception wavelength of port device (such as, from the operation wavelength of end receiver); Select a transmission rate, and pass through to receive the CPRI downlink frame, wherein, can carry up wavelength information, downstream wavelength information and wavelength user mode information that master port equipment provides in the CPRI downlink frame from end receiver with the transmission rate of this selection; If in preset time T 2, receive correct CPRI downlink frame,, judge whether the up wavelength information that receives and the up wavelength and the downstream wavelength of downstream wavelength information correspondence are assigned with promptly with the described transmission rate CPRI downlink frame of same rate mutually; When described up wavelength and downstream wavelength are not assigned with, according to the up wavelength information configuration that receives from the emission wavelength of port device (such as, operation wavelength from the port transmitter), and send the CPRI uplink frame that carries from the port device sign, with its inner Wavelength Assignment table of notice master port renewal of the equipment.Thus, can realize from port device, such as the access of the RE with tunable optical module.
Particularly, see also Fig. 2, the idiographic flow of the wireless device cut-in method that present embodiment provides can comprise:
201, configuration is from the operation wavelength of end receiver; Specifically can be according to the operation wavelength of the algorithm configuration that presets from end receiver; Perhaps, in the wavelength that can receive downlink optical signal, select the operation wavelength of a wavelength configuration from end receiver.
For example, if from port device is the RE with tunable optical module, then RE can be according to the operation wavelength of the algorithm configuration that presets from end receiver, such as according to certain wavelength of selective sequential from small to large of wavelength and with it as operation wavelength from end receiver; Perhaps, RE also can be according to the operation wavelength of the wavelength configuration that receives downlink optical signal from end receiver, such as, if the wavelength that uses from the descending REC that does not set up the CPRI link that receives activation is to information, then can therefrom select a pair of untapped wavelength as operation wavelength, can improve the speed of Wavelength Assignment like this from end receiver.
202, select a transmission rate,, promptly select a transmission rate, carry out rate consulation with master port equipment with the transmission rate of this selection and by receiving the CPRI downlink frame from end receiver.
If 203 receive correct CPRI downlink frame in preset time T 2, promptly receive with step 201 in the transmission rate the selected CPRI downlink frame of same rate mutually, then represent the rate consulation success, enter synchronous regime, so execution in step 204; If in described preset time T 2, do not receive correct CPRI downlink frame, then represent the rate consulation failure, fail to enter synchronous regime, so execution in step 205; Wherein, described preset time T 2 can be rule of thumb or standard code determine, such as, 3.9～4.1s need adjust according to the wavelength regulation time.
Wherein, can carry up wavelength information, downstream wavelength information and wavelength user mode information that master port equipment provides according to its corresponding Wavelength Assignment table in the CPRI downlink frame, during concrete enforcement, can carry up wavelength information, downstream wavelength information and wavelength user mode information by reserved field in the CPRI downlink frame, this reserved field can be pre-defined in the CPRI agreement.
204, when the pairing up wavelength of the up wavelength information of determining to receive and downstream wavelength are not assigned with, according to the operation wavelength of the up wavelength information configuration that receives, pass through to send the CPRI uplink frame from the port transmitter with the transmission rate of selecting from the port transmitter.Wherein, described CPRI uplink frame portability has the identification information from port device, such as when described when port device is RE, described identification information can be RE-SN; If from port device is REC, described identification information can be REC-SN or REC-ID.This RE-SN is used to identify RE, and REC-SN or REC-ID are used to identify REC.
After this, can determine further described up wavelength inserts whether conflict is arranged according to the up wavelength information in the CPRI downlink frame, downstream wavelength information and user mode information.If up wavelength inserts not conflict, then continue the negotiation that carries on an agreement, to finish the access of the RE with tunable optical module.If up wavelength has access to conflict, random wait after a period of time then judges once more whether the up wavelength information that receives and the pairing up wavelength of downstream wavelength information and downstream wavelength are assigned with.If be assigned with, then upgrade the user mode information of this uplink and downlink wavelength in the local wavelength state table, return then and carry out the step of configuration from the operation wavelength of end receiver, promptly execution in step 201; If also be not assigned with, then return execution and pass through from the step of port transmitter transmission CPRI uplink frame with the transmission rate of selecting, promptly execution in step 204.
It should be noted that, can be according to actual needs from port device, the local wavelength state table that its inside is pre-configured is safeguarded, such as described when port device loses synchronously or roll off the production line, perhaps when the timer of wavelength state table surpasses the time of presetting, with the user mode information zero clearing of wavelength state table medium wavelength or be set to not use state.
205, reselect a transmission rate, return the step of execution with the transmission rate reception CPRI downlink frame of this selection, promptly execution in step 202.
Certainly, can also judge before reselecting a transmission rate whether this transmission rate of reselecting is minimum speed limit, if not, return the step of execution, i.e. step 202 with the transmission rate reception CPRI downlink frame of this selection; If return and carry out the step of configuration from the operation wavelength of end receiver, i.e. step 201.
Wherein, the system of selection of the transmission rate in step 202 and the step 205 is: begin to select from the highest speed, gradually changing down.If minimum speed does not realize that the highest speed is returned in redirect, restarts the rate consulation process synchronously yet.
When carrying out rate consulation, Z.2.0 master port equipment writing the highest CPRI version that it is supported, Z.66.0 and Z.194.0 writing HDLC and the Ethernet speed that it is supported respectively.
It should be noted that more than operation all is under the synchronous regime at CPRI major state machine and carries out, and is when this state, from the transmitter that port device should be closed it, promptly said from the port transmitter in the embodiment of the invention.In addition, also it should be noted that,,, can operate referring to existing technology such as follow-up protocol synchronization negotiation, C/M rate consulation state etc. about other states of required experience when port device inserts.
As from the foregoing, present embodiment can be according to the operation wavelength of the up wavelength information configuration that receives from the port transmitter from port device, and by sending the CPRI uplink frame from the port transmitter with its inner Wavelength Assignment table of notice master port renewal of the equipment, therefore, the scheme that provides of present embodiment can realize adopting the tunable optical module from smooth connecting system of port device and operate as normal.Therefore, the technical scheme that adopts present embodiment to provide does not need all to prepare a specific optical module for each wavelength, but also can transmit both direction and multi-wavelength's light signal in an optical fiber, therefore can reduce the cost of storage and O﹠M.
Embodiment three,
In order to implement above method better, following examples are REC with master port equipment, are that RE is that example elaborates from port device.
In order to solve the Wavelength Assignment of the RE that adopts the tunable optical module, and RE and REC set up the CPRI link and enter the problem of normal operating conditions, need improve existing REC and RE.
Particularly, REC comprises the Wavelength Assignment module, and this Wavelength Assignment module can be with the independently form realization of module or equipment, and referring to Fig. 3, a newly-increased functional module that also can be used as existing equipment realizes, referring to Fig. 4 and Fig. 5.The Wavelength Assignment module can also comprise a Wavelength Assignment table, preserve downstream wavelength information, up wavelength information, wavelength user mode information, RE sequence number (RE-SN), REC sequence number (REC-SN) or REC sign information such as (REC-ID), referring to table one.The optical module that REC sets up the CPRI link can be fixed wave length optical module (referring to Fig. 4), also can be tunable optical module (referring to Fig. 5).
Table one (Wavelength Assignment table):
And, the RE end comprises a wavelength negotiation module, this wavelength negotiation module can be with the independently form realization of module or equipment, a newly-increased functional module that also can be used as existing equipment realizes, certainly, can also be by other implementation, but easy to use for the user, generally the what's new module as RE realizes when implementing.The wavelength negotiation module can also comprise a wavelength state table, as shown in Table 2, preserves information such as downstream wavelength information, up wavelength information and wavelength user mode information.The optical module that RE sets up the CPRI link is the tunable optical module.
Table two (wavelength state table):
| Downstream wavelength | Up wavelength | The wavelength user mode |
| ...... | ...... | ...... |
It should be noted that, give control subsystem, transmission subsystem, baseband subsystems and power module among Fig. 5, wherein, control subsystem comprises the Wavelength Assignment module that clock module, signaling processing module, operating maintenance module and the embodiment of the invention increase newly, except the Wavelength Assignment module, when specifically implementing, other modules can not repeat them here referring to existing technology.
In addition, owing to when distributing wavelength, always realize with the right form of wavelength, therefore, do not define corresponding wavelength user mode field respectively to write down up user mode information and descending user mode information in table one and the table two at up wavelength and downstream wavelength, but only provide the field of a called after " wavelength user mode ", that is to say that what said in the embodiment of the invention " the wavelength user mode of up wavelength " or " the wavelength user mode of downstream wavelength " referred to is exactly the right wavelength user mode of their pairing wavelength.
Because the embodiment of the invention replaces with the tunable optical module of wavelength-tunable with the optical module of the fixed wave length among the existing RE, therefore, in order to make the RE with tunable optical module can normally dock with REC, the scheme that present embodiment provides can be taked following steps:
1, transmission rate of master port choice of equipment, and send the CPRI downlink frame by the master port transmitter with the transmission rate of this selection.The field of making an appointment in the described downlink frame comprises downstream wavelength information and up wavelength information, and this user mode information to wavelength, such as field value be 0 expression this wavelength is not also dispensed, be that this is occupied to wavelength in 1 expression.
2, regulate the reception wavelength from port device according to downlink optical signal, to select one downstream signal light wavelength passage is arranged, and select one, carry out rate consulation as receiving velocity.If can receive correct CPRI downlink frame (the CPRI downlink frame that sends in the step 1) with this receiving velocity, then mean the rate consulation success.Can from the CPRI downlink frame that receives, obtain up-downgoing wavelength information and user mode information thereof from port device, if this does not also dispense wavelength, then according to the operation wavelength of the up wavelength information setting of receiving from port transmitter (getting final product the transmitter of light-adjusting module), and start from the port transmitter, can in CPRI uplink frame to be sent, carry simultaneously from the sequence number of port device place RE, for example, the field of making an appointment with master port equipment in the CPRI uplink frame to be sent is set to from the sequence number of port device place RE.
3, master port equipment is received the CPRI uplink frame that sends from port device in the step 2 with the transmission rate of selecting in the step 1 in official hour.If satisfy the Wavelength Assignment condition then confirm, upgrade the Wavelength Assignment table, the user mode of revising downstream wavelength is for distributing, such as being revised as, distributes the user mode information field in the CPRI downlink frame, and in the CPRI downlink frame, carry the sequence number of the RE that receives, such as the sequence number that writes the RE that receives in the respective field in the CPRI downlink frame, continue next step negotiations process of CPRI agreement then.If do not satisfy the Wavelength Assignment condition, then ignore described field information.
If 4 do not receive correct response message at the appointed time from port device from downlink frame, represent that then this is used wavelength, then closer is from the port transmitter, from other untapped wavelength, select a pair of wavelength, it is set from end receiver with from the operation wavelength of port transmitter, again carry out the rate consulation process, up to successfully applying for a pair of idle wavelength.
In order to describe clearlyer, below will be respectively describe from master port equipment with from the angle of port device.
(1) master port equipment
Supposing that at this this master port equipment is REC, is RE from port device.
As shown in Figure 6, under synchronous regime, the rate consulation step of CPRI agreement master port equipment (is example with REC) can comprise:
After A301, master port device power start, if what REC used is the tunable optical module, then be a pair of untapped wavelength of this tunable optical module assignment (comprising up wavelength and downstream wavelength), the operation wavelength of configuration master port transmitter and master port receiver, and renewal Wavelength Assignment table, execution in step A302 then.If REC uses the laser of fixed wave length, this step can be skipped.
A302, select a transmission rate, and send the CPRI downlink frame to from port device RE by the master port transmitter with the transmission rate of this selection; Wherein, need to carry up wavelength information and downstream wavelength information in the CPRI downlink frame, and this is to the wavelength user mode information of wavelength (up wavelength and downstream wavelength), such as carrying by reserved field in the CPRI downlink frame, wherein, field value be 0 expression this wavelength is not also dispensed, be 1 expression this is occupied to wavelength, or the like.
The system of selection of speed is: begin to select from the highest speed, gradually changing down.
A303, by the master port receiver, with the phase same rate, promptly receive the CPRI uplink frame that sends by RE with the speed identical with the transmission rate of selection in the steps A 302, (this is because REC may receive the CPRI uplink frame that a plurality of RE send simultaneously to carry the RE sequence number in this CPRI uplink frame, therefore need come RE is discerned according to the RE sequence number), represent that this RE need ask certain to wavelength; If in preset time T 1, receive correct CPRI uplink frame, show that then this RE and REC are synchronous, so execution in step A304; If do not receive correct CPRI uplink frame in the time, show that then this RE and REC also not synchronously, need reselect another transmission rate, i.e. execution in step A306 at T1; Wherein, T1 can be 0.9～1.1s, need adjust according to the wavelength regulation time.
A304, determine up wavelength inserts whether conflict is arranged, such as, by REC uplink optical signal is detected as master port equipment, if detect the uplink optical signal conflict, as detect the LOS signal, promptly showing has two or more RE to apply for that this to wavelength (be distribute in the steps A 301 that to wavelength), restarts rate consulation so turn back to the synchronous regime of starting state machine, and promptly steps A 302; Otherwise,, represent that then up wavelength inserts not conflict, so execution in step A305 if do not detect the uplink optical signal conflict.
The RE sequence number that comprises in the CPRI uplink frame that A305, REC record is received, feed back to the Wavelength Assignment module, and the Wavelength Assignment table in the renewal Wavelength Assignment module, such as, RE sequence number in the CPRI uplink frame that receives is write in the Wavelength Assignment table and this field corresponding to wavelength, and this wavelength user mode to wavelength is set to distribution state; I.e. expression has been distributed to the pairing RE of this RE sequence number with this wavelength to (comprising up wavelength and downstream wavelength).Meanwhile, the wavelength user mode information of master port apparatus modifications CPRI downlink frame specific field to inform this user mode to wavelength of RE, avoids RE once more this to be filed an application to ask to wavelength.After this, REC sends and confirms that bag (ACK bag) to RE, enters next step state, and the synchronization negotiation that promptly carries on an agreement operation is to finish the access of the RE with tunable optical module.
Certainly, REC also need be at the highest CPRI version that Z.2.0 writes its support of downlink frame, Z.66.0 and Z.194.0 writing HDLC and the Ethernet speed that it is supported respectively, in addition, in order to improve the efficient of Wavelength Assignment, can also write other wavelength available to information in the CPRI downlink frame, the wavelength that REC promptly that activate, that do not set up the CPRI link uses is to information.
It should be noted that, REC can safeguard the Wavelength Assignment table according to actual needs, such as losing at RE synchronously or when rolling off the production line, wavelength that need correspondence is set to unallocated state to the wavelength user mode of (being up wavelength and up wavelength), and removes this to the pairing RE-SN of wavelength and REC-SN or REC-ID field.
A306, reselect another transmission rate, return execution and send the step of CPRI downlink frame, promptly return execution in step A301 with the transmission rate of this selection.Wherein, the system of selection of transmission rate is: begin to select from the highest speed, gradually changing down.If minimum speed does not realize that the highest speed is returned in redirect, restarts the rate consulation process, promptly re-executes above step synchronously yet.
(2) from port device
In this hypothesis should be RE from port device, and master port equipment is REC.
As shown in Figure 7, under synchronous regime, the CPRI agreement can be as follows from the rate consulation step of port device (is example with RE), it should be noted that, when this state, the transmitter that should close it from port, the not luminance that promptly powers on is up to receiving the CPRI downlink frame identical with selecting speed.
B301, RE configuration is from end receiver operation wavelength (be in closed condition from the port transmitter this moment); For example, can be as follows:
RE regulates from the end receiver operation wavelength according to certain algorithm that presets, such as according to certain wavelength of selective sequential from small to large of wavelength and with it as operation wavelength from end receiver; Perhaps,
If descending optical information is arranged, the reception wavelength that RE also can be provided with the tunable optical module is the operation wavelength from end receiver, for example, if the wavelength that uses from the descending REC that does not set up the CPRI link that receives activation is to information, then can therefrom select a pair of untapped wavelength as operation wavelength, can improve the speed of Wavelength Assignment like this from end receiver.
B302, select a transmission rate, and with the transmission rate of this selection by receiving the CPRI downlink frame from end receiver, if in preset time T 2, receive the CPRI downlink frame of phase same rate, show that then RE and REC are synchronous, can execution in step B303; If the CPRI downlink frame in that T2 does not receive the phase same rate in the time then shows RE and REC also not synchronously, so need reselect a transmission rate, i.e. execution in step B308; Wherein, T2 can be 3.9～4.1s, need adjust according to the wavelength regulation time;
Wherein, the system of selection of transmission rate is: begin to select from the highest speed, gradually changing down.
In addition, need to carry up wavelength information and downstream wavelength information in the CPRI downlink frame, and this is to the wavelength user mode information of wavelength; Such as carrying these information by reserved field in the CPRI downlink frame, certainly, this reserved field need be made an appointment in the CPRI agreement.
Wherein, user mode information can realize in the following way:
Field value be 0 expression this wavelength is not also dispensed, be 1 expression this is occupied to wavelength, be 2 expression wavelength access interferences.
B303, determine whether the pairing up wavelength of the up wavelength information that receives is assigned with, in other words, determine its pairing wavelength to whether being assigned with according to the up wavelength information that receives and downstream wavelength information, if, execution in step B304 then; If not, execution in step B305 then.
The wavelength user mode information (i.e. the right wavelength user mode information of this wavelength) of this up wavelength correspondence in B304, the local wavelength state table of renewal, its wavelength user mode information of being about to is recorded as distributes, return then and carry out the step of configuration, promptly return execution in step B301 from the operation wavelength of end receiver.
It should be noted that, RE can safeguard the wavelength state table according to actual needs, such as losing at RE synchronously or when rolling off the production line, perhaps when the timer of wavelength state table surpasses the time of presetting, when perhaps RE reenters synchronous regime at every turn, all need the zero clearing of wavelength state table medium wavelength user mode information promptly is set to not use state.
The up wavelength information configuration that B305, basis receive starts from the port transmitter from the operation wavelength of port transmitter, and with identical speed, promptly the transmission rate of Xuan Zeing is by sending the CPRI uplink frame to master port equipment from the port transmitter; Execution in step B306 then; Wherein, RE need write this RE sequence number in the predefined field in the CPRI uplink frame, and expression uses this to wavelength to the REC request.
B306, determine according to downstream wavelength information and wavelength user mode information downstream wavelength inserts whether conflict is arranged, if downstream wavelength inserts not conflict, then receive affirmation bag (ACK bag) that REC sends afterwards at RE, enter next step state, the synchronization negotiation that promptly carries on an agreement operation is to finish the access of the REC with tunable optical module; If inserting, downstream wavelength has conflict, then execution in step B307.
B307, random wait a period of time (length of time can be decided by the strategy of operator), suspend the transmission wavelength and insert request, promptly time-out sends the CPRI uplink frame, and continuation simultaneously monitors the wavelength information of CPRI downlink frame.Distribute if detect this wavelength, then upgrade the pairing wavelength user mode of this up wavelength in the local wavelength state table, select next wavelength then, the ingress rate negotiation state is promptly returned and is carried out the step (return execution in step B301) of configuration from the operation wavelength of end receiver.If detect this wavelength and also be not assigned with, then when the time of waiting for expires, resend wavelength and insert request, promptly return execution with the transmission rate selected by step (returning execution in step B305) from port transmitter transmission CPRI uplink frame.
B308, judge whether this transmission rate of reselecting is minimum speed limit, if not, then reselects a transmission rate, return execution and receive the step of CPRI downlink frame, promptly return and carry out B302 with this transmission rate of reselecting; If, return and carry out the step of configuration from the operation wavelength of end receiver, promptly return execution in step B301.Wherein, can begin from the highest speed when selecting transmission rate to select, gradually changing down.If minimum speed does not realize synchronously yet, then reselect one and receive wavelength, begin to select from the highest speed again, changing down carries out rate consulation gradually.
It should be noted that the embodiment of the invention is to be the master port equipment of CPRI agreement with REC, RE is describing from port device of CPRI agreement.In specific implementation process, the master port equipment of CPRI agreement may be REC or RE, and the CPRI agreement may be REC or RE from port device equally, but each CPRI link has only a master port equipment, and one from port device.That is to say that what set up the CPRI link can be any two nodes of REC or RE.Referring to Fig. 8 and Fig. 9, Fig. 8 carries out the scene schematic diagram that the WDM mode is transmitted for setting up the CPRI link between REC and the RE, and Fig. 9 is for setting up the scene schematic diagram that the CPRI link carries out the transmission of WDM multiplex mode between RE and the RE.
As from the foregoing, present embodiment replaces with the optical module of the fixed wave length among the RE tunable optical module of wavelength-tunable, promptly increase the Wavelength Assignment module at the REC end, increase the wavelength negotiation module at the RE end, and carry the RE sequence number in the CPRI uplink frame that RE sends to REC, in sending to the CPRI uplink frame of RE, REC carries right wavelength information of wavelength and wavelength user mode information, can recognize the distribution condition that wavelength is right so that allow mutually between RE and the REC, make RE can normally dock with REC with tunable optical module.Because the RE in this scheme has adopted the tunable optical module, thus do not need for each wavelength all provides an optical module, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M.
Embodiment four,
In order to implement above method better, the embodiment of the invention also correspondingly provides a kind of master port equipment, and as shown in figure 10, this master port equipment comprises master port transmitter 401, master port receiver 402 and processing unit 403; It should be noted that, for convenience, give among Figure 10, should be understood that, do not belong to master port equipment from port device 500 from port device 500.
Master port processing unit 403, be used in preset time T 1, receiving correct CPRI uplink frame when master port receiver 402, promptly with described transmission rate mutually during the CPRI uplink frame of same rate, and when determining that up wavelength access does not conflict, according to the Wavelength Assignment table in the CPRI uplink frame that receives from port device update of identification information self, then according to the Wavelength Assignment table with the described wireless device of Wavelength Assignment result notification, for example, according to this Wavelength Assignment table configuration CPRI downlink frame, promptly in the CPRI downlink frame, carry up wavelength information and downstream wavelength information, and the wavelength user mode information in the renewal CPRI downlink frame, then this CPRI downlink frame is sent to RE, after this synchronization negotiation that can carry on an agreement operation is to finish the access of the RE with tunable optical module.Wherein, T1 can be rule of thumb or standard code determine, such as, 0.9～1.1s need adjust according to the wavelength regulation time.
Wherein, described master port transmitter 401, can also be used in preset time T 1, not receiving and described transmission rate mutually during the CPRI uplink frame of same rate, reselect a transmission rate, send the CPRI downlink frame with this transmission rate of reselecting then when master port receiver 402.
Described master port processing unit 403 also is used for the Wavelength Assignment table is safeguarded, such as losing at RE synchronously or when rolling off the production line, need should the pairing wavelength user mode of up wavelength be set to unallocated state, and removing RE sequence number.
Can comprise the Wavelength Assignment module in this master port processing unit 403, and described Wavelength Assignment table is configured in described Wavelength Assignment module.
This master port equipment can be RE or the REC with tunable optical module.
If master port equipment is REC, and what should use as the REC of master port equipment is the tunable optical module, then before master port transmitter 401 is selected transmission rate, described master port processing unit 403 can also distribute a pair of untapped wavelength for this optical module, be up wavelength of tunable optical module assignment and downstream wavelength, dispose the operation wavelength of master port transmitter then according to the downstream wavelength of distributing, according to the operation wavelength of the up wavelength configuration master port receiver that distributes, and upgrade the Wavelength Assignment table.
More than the concrete enforcement of each unit can not repeat them here referring to method embodiment.
It should be noted that the embodiment of the invention is to be the master port equipment of CPRI agreement with REC, RE is describing from port device of CPRI agreement.In specific implementation process, the master port equipment of CPRI agreement may be REC or RE, and the CPRI agreement may be REC or RE from port device equally, but each CPRI link has only a master port equipment, and one from port device.
This scheme can realize allowing to adopt the RE of tunable optical module to insert, so therefore do not need all to prepare a specific optical module for each wavelength, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M.
Embodiment five,
In order to implement above method better, it is a kind of from port device that the embodiment of the invention also correspondingly provides, as shown in figure 11, should from port device comprise wavelength configuration unit 503, from end receiver 501 with from port processing unit 502;
From end receiver 501, be used to select a transmission rate, and receive the CPRI downlink frame with the transmission rate of this selection, wherein, can carry up wavelength information, downstream wavelength information and user mode information in the CPRI downlink frame;
From port processing unit 502, be used for when in preset time T 2, receiving correct CPRI downlink frame from end receiver 501, promptly with described transmission rate mutually during the CPRI downlink frame of same rate, determine whether the downstream wavelength information that receives and the up wavelength and the downstream wavelength of up wavelength information correspondence are assigned with, if described up wavelength and downstream wavelength are not assigned with, according to the operation wavelength of the up wavelength information configuration that receives from the port transmitter, with the transmission rate selected by sending the CPRI uplink frame that carries from the port device identification information, with its inner Wavelength Assignment table of notice master port renewal of the equipment from the port transmitter.Wherein, described preset time T 2 can be rule of thumb or standard code determine, such as 3.9～4.1s, need adjust according to the wavelength regulation time.
Described from port processing unit 502, also be used for when descending wavelength access has conflict, random wait is after a period of time, judge once more whether the downstream wavelength and the up wavelength that receive are assigned with, if be assigned with, then upgrade the user mode information of this downstream wavelength and up wavelength in the local wavelength state table, return then and carry out the step of configuration from the operation wavelength of end receiver; If also be not assigned with, then return execution passes through to send from the port transmitter CPRI uplink frame with the transmission rate of selecting step.
Described from port processing unit 502, also be used for the wavelength state table is safeguarded, such as losing at RE synchronously or when rolling off the production line, perhaps when the timer of wavelength state table surpasses the time of presetting, with user mode information zero clearing in the wavelength state table or be set to not use state.
Should from port processing unit 502, can comprise the wavelength negotiation module.
Described from end receiver 501, also be used for reselecting a transmission rate when in preset time T 2, not receiving and described transmission rate mutually during the CPRI downlink frame of same rate, return execution receives the CPRI downlink frame with the transmission rate of this selection step.
This master port equipment can be RE or the REC with tunable optical module.
From port device is the RE with tunable optical module, wavelength configuration unit 503 particularly can be according to the operation wavelength of the algorithm configuration that presets from end receiver, such as according to certain wavelength of selective sequential from small to large of wavelength and with it as operation wavelength from end receiver; Perhaps, also can be according to the operation wavelength of the wavelength configuration that receives downlink optical signal from end receiver, such as, if the wavelength that uses from the descending REC that does not set up the CPRI link that receives activation is to information, then can therefrom select a pair of untapped wavelength as operation wavelength, can improve the speed of Wavelength Assignment like this from end receiver.
More than the concrete enforcement of each unit can not repeat them here referring to method embodiment.
The scheme that present embodiment provides can realize adopting the RE of tunable optical module to insert smoothly and work, so do not need all to prepare a specific optical module for each wavelength, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M.
Embodiment six,
Correspondingly, the embodiment of the invention also provides a kind of communication system, and as shown in figure 12, this communication system comprises master port equipment 601 and from port device 602;
Described master port equipment 601, be used to select one first transmission rate, and send the CPRI downlink frame that carries up wavelength information, downstream wavelength information and wavelength user mode information by the master port transmitter with first transmission rate of this selection to from port device 602, receive the CPRI uplink frame that sends from port device 602 with described transmission rate by the master port receiver, carry described identification information in the described CPRI uplink frame from port device 602; If in first preset time T 1, receive correct CPRI uplink frame, promptly with the described transmission rate CPRI uplink frame of same rate mutually, then when determining that up wavelength access does not conflict, according to establishing by the Wavelength Assignment table of update of identification information self in the CPRI uplink frame that receives from port, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device 602 then, for example, according to this Wavelength Assignment table configuration CPRI downlink frame, promptly in the CPRI downlink frame, carry up wavelength information and downstream wavelength information, and the wavelength user mode information in the renewal CPRI downlink frame, then this CPRI downlink frame is sent to from port device 602, after this synchronization negotiation that can carry on an agreement operation is to finish the access from port device 602 with tunable optical module; Wherein, described preset time T 1 can be rule of thumb or standard code determine, such as 0.9～1.1s, need adjust according to the wavelength regulation time;
Described from port device 602, be used to dispose operation wavelength from end receiver, select one second transmission rate, and send the CPRI downlink frame by receive master port equipment 601 from end receiver with second transmission rate of this selection, carry up wavelength information, downstream wavelength information and wavelength user mode information in the described CPRI downlink frame; If receive correct CPRI uplink frame in 2 times in preset time T, promptly with the described transmission rate CPRI downlink frame of same rate mutually, according to the operation wavelength of the up wavelength information configuration that receives from the port transmitter, with the transmission rate selected by sending the CPRI uplink frame that carries from the port device identification information from the port transmitter to master port equipment 601, with its inner Wavelength Assignment table of notice master port renewal of the equipment.After this, can be after determining that according to downstream wavelength information and wavelength user mode information downstream wavelength inserts conflict, the synchronization negotiation that carries on an agreement operation is to finish the access of the RE with tunable optical module.Wherein, described preset time T 2 can be rule of thumb or standard code determine, such as 3.9～4.1s, need adjust according to the wavelength regulation time.
Described master port equipment 601, also be used for not receiving correct CPRI uplink frame in the time at T1 when the master port receiver, promptly, reselect a transmission rate, send the CPRI downlink frame with this transmission rate of reselecting then with described transmission rate mutually during the CPRI uplink frame of same rate.
Described from port device 602, also be used for reselecting a transmission rate when not receiving in the time at T2 and described transmission rate mutually during the CPRI downlink frame of same rate, return execution receives the CPRI downlink frame with the transmission rate of this selection step.
Wherein, master port equipment 601 can comprise master port transmitter 401, master port receiver 402 and master port processing unit 403; From end equipment 602 can comprise dispensing unit 503, from end receiver 501 with from port processing unit 502.
More than the concrete enforcement of each unit can not repeat them here referring to embodiment one to five.
Below will do explanation briefly to master port equipment 601 with from the rate consulation between the port device 602 for example.
Step 2, master port equipment 601 carry downstream wavelength information and up wavelength information in the specific fields (can be pre-defined in the CPRI agreement) of the CPRI downlink frame that sends, and this wavelength user mode information to wavelength (as field value be 0 expression this wavelength is not also dispensed, be that this is occupied to wavelength in 1 expression).
Step 3, select corresponding reception wavelength, and select one downstream signal light wavelength passage is arranged, enter synchronous regime, consult transmission rate from port device 602.After transmission rate is consulted successfully, from the CPRI downlink frame that master port equipment 601 sends, obtain downstream wavelength information and up wavelength information, with and wavelength user mode information, if this does not also dispense wavelength, then according to the up wavelength information setting of receiving from the port transmitter, and start from the port transmitter, simultaneously write (can be pre-defined in the CPRI agreement) in the specific fields of the CPRI uplink frame that sends to master port equipment 601 and be the sequence number (such as the sequence number of RE or REC) from port device 602, the expression request uses this to wavelength.
After step 4, master port equipment 601 are received this CPRI uplink frame, if agree this request then confirm, the wavelength user mode information field of revising the CPRI downlink frame is for distributing, upgrade the Wavelength Assignment table, and in the respective field of CPRI downlink frame, write the sequence number that receives from port device 602, and, should continue the CPRI protocol synchronization negotiations process of back from port device 602 and master port equipment 601 then according to the wavelength user mode (promptly being updated to " distributing " state) in the record renewal CPRI downlink frame of Wavelength Assignment table at this.
If step 5 does not successfully apply for that from port device 602 this is to wavelength, maybe this is used wavelength, then from other untapped wavelength, select a pair of wavelength, setting is from end receiver with from the operation wavelength of port transmitter, restart the rate consulation process, up to successfully applying for a pair of wavelength and entering run mode.
Wherein, master port equipment 601 is specifically as follows RE or REC, also can be RE or REC from port device 602.
As from the foregoing, present embodiment replaces with the optical module of the fixed wave length the RE (can be used as from port device 602 or master port equipment 601) the tunable optical module of wavelength-tunable, correspondingly existing C PRI agreement is made amendment then, promptly increase the Wavelength Assignment module in master port equipment 601 sides, increasing the wavelength negotiation module from port device 602 sides, and carry the RE sequence number in the CPRI uplink frame that sends to REC from port device 602, send at master port equipment 601 and from the CPRI uplink frame of port device 602, to carry right wavelength information of wavelength and wavelength user mode information, can recognize the distribution condition that wavelength is right so that allow mutually between port device 602 and the master port equipment 601, make to have can normally docking with master port equipment 601 of tunable optical module from port device 602; Concrete modification can be referring to the embodiment of front, because the RE in this scheme has adopted the tunable optical module, so not needing all provides an optical module for each wavelength, but also can in an optical fiber, transmit both direction and multi-wavelength's light signal, therefore can reduce the cost of storage and O﹠M.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of the foregoing description is to instruct relevant hardware to finish by program, this program can be stored in the computer-readable recording medium, storage medium can comprise: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
More than wireless device cut-in method, device and communication system that the embodiment of the invention provided are described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (14)
1. a wireless device cut-in method is characterized in that, comprising:
By selected transmission rate from master port equipment to sending the common public radio interface CPRI downlink frame from port device;
Receive the CPRI uplink frame that sends from port device with the described selected identical speed of transmission rate, carry described identification information in the described CPRI uplink frame from port device;
If in Preset Time, receive and this transmission rate CPRI uplink frame of same rate mutually, then according to the Wavelength Assignment table of described update of identification information master port equipment from port device, then according to the Wavelength Assignment table with the Wavelength Assignment result notification from port device.
2. method according to claim 1 is characterized in that, also comprises:
If in described Preset Time, do not receive correct CPRI uplink frame, then reselect a transmission rate, return the step that execution sends the CPRI downlink frame with described transmission rate and receives the CPRI uplink frame.
3. method according to claim 1 is characterized in that, described CPRI downlink frame comprises downstream wavelength information, up wavelength information and the wavelength user mode information of determining according to the Wavelength Assignment table.
4. according to each described method in the claim 1 to 3, it is characterized in that described Wavelength Assignment table according to described update of identification information master port equipment from port device comprises:
Described sequence number from port device is write the Wavelength Assignment table and up wavelength and the corresponding field of downstream wavelength, and described up wavelength and the pairing wavelength user mode of downstream wavelength field are set to distribution state.
5. method according to claim 4 is characterized in that, also comprises:
, be set to unallocated state with described up wavelength and the pairing wavelength user mode of downstream wavelength in the described Wavelength Assignment table, and remove described identification information when port device loses synchronously or roll off the production line described from port device.
6. a wireless device cut-in method is characterized in that, comprising:
Configuration is from the reception wavelength of port device;
Receive the CPRI downlink frame by a selected transmission rate, carry up wavelength information, downstream wavelength information and wavelength user mode information in the described CPRI downlink frame;
If in Preset Time, receive and this transmission rate CPRI downlink frame of same rate mutually, judge then whether the up wavelength and the downstream wavelength that receive up wavelength information and downstream wavelength information correspondence are assigned with;
When described up wavelength and downstream wavelength are not assigned with, according to the described up wavelength information configuration emission wavelength that receives, and send and to carry from the CPRI uplink frame of the identification information of port device, with its inner Wavelength Assignment table of notice master port renewal of the equipment.
7. method according to claim 6 is characterized in that, described configuration comprises from the reception wavelength of port device:
According to the reception wavelength of the algorithm configuration that presets from port device; Perhaps,
Select a wavelength receiving downlink optical signal, and be reception wavelength from port device with selected wavelength configuration.
8. according to the method for claim 6 or 7, it is characterized in that, also comprise:
When the up wavelength information of determining to receive and the pairing up wavelength of downstream wavelength information and downstream wavelength have been assigned with, upgrade up wavelength described in the local wavelength state table and the pairing wavelength user mode of downstream wavelength information, and return and carry out the step of configuration from the reception of port device.
9. method according to claim 8 is characterized in that, also comprises:
When losing synchronously or rolling off the production line, perhaps when the timer of wavelength state table surpasses the time of presetting, with user mode information zero clearing in the wavelength state table or be set to not use state.
10. a master port equipment is characterized in that, comprises master port transmitter, master port receiver and processing unit;
The master port transmitter is used to select a transmission rate, and with described transmission rate to send the CPRI downlink frame from port device;
The master port receiver, the transmission rate that is used for selecting with the master port transmitter receives the CPRI uplink frame that sends from port device, carries described identification information from port device in the described CPRI uplink frame;
Processing unit, be used in Preset Time, receiving and this transmission rate mutually during the CPRI uplink frame of same rate when the master port receiver, according to the Wavelength Assignment table of described update of identification information self from port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then.
11. master port equipment according to claim 10 is characterized in that:
Described processing unit also is used for when losing from port device synchronously or rolling off the production line, and will be unallocated state with the pairing wavelength user mode of described up wavelength information setting in the described Wavelength Assignment table, and removes described identification information from port device.
12. one kind from port device, it is characterized in that, comprises the wavelength configuration unit, from end receiver and processing unit;
The wavelength configuration unit is used to dispose the operation wavelength from end receiver;
From end receiver, be used to select a transmission rate, and receive the CPRI downlink frame with the transmission rate of this selection, carry up wavelength information, downstream wavelength information and wavelength user mode information in the described CPRI downlink frame;
Processing unit, be used for when receiving in Preset Time from end receiver and this transmission rate CPRI downlink frame of same rate mutually, and when the wavelength of up wavelength information of determining to receive and downstream wavelength information correspondence is not assigned with, according to the operation wavelength of the up wavelength information configuration that receives from the port transmitter, and notice sends the CPRI uplink frame carry from the port device identification information from the port transmitter, with its inner Wavelength Assignment table of notice master port renewal of the equipment.
13. according to claim 12 from port device, it is characterized in that:
Described is wireless device or the radio equipment controller with tunable optical module from port device.
14. a communication system is characterized in that, comprises master port equipment and from port device;
Described master port equipment, be used for carrying up wavelength information by selected first transmission rate transmission, the CPRI downlink frame of downstream wavelength information and wavelength user mode information is given from port device, receive from carrying that port device sends with described first transmission rate from the CPRI uplink frame of the identification information of port device, and when in first Preset Time, receiving and this first transmission rate mutually during the CPRI uplink frame of same rate, according to the Wavelength Assignment table of described update of identification information self from port device, according to the Wavelength Assignment table that the Wavelength Assignment result notification is described from port device then;
Described from port device, be used to select one second transmission rate, and with described transmission rate reception master port equipment transmission CPRI downlink frame, and when in second Preset Time, receiving and this second transmission rate mutually during the CPRI downlink frame of same rate, dispose its emission wavelength and send the CPRI uplink frame of carrying from the identification information of port device to master port equipment according to the described up wavelength information that receives.
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| WO2017016304A1 (en) * | 2015-07-30 | 2017-02-02 | 深圳市中兴微电子技术有限公司 | Data transmission method and apparatus, and computer-readable medium |
| CN107222405A (en) * | 2017-06-26 | 2017-09-29 | 杭州绿湾网络科技有限公司 | Data transmission method and system |
| CN107528663A (en) * | 2016-06-20 | 2017-12-29 | 华为技术有限公司 | The transmission method and device of control information |
| CN113064919A (en) * | 2021-03-31 | 2021-07-02 | 北京达佳互联信息技术有限公司 | Data processing method, data storage system, computer device and storage medium |
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| CN106412991A (en) * | 2015-07-30 | 2017-02-15 | 深圳市中兴微电子技术有限公司 | Data transmission method, sending device, and receiving device |
| CN106412991B (en) * | 2015-07-30 | 2019-07-19 | 深圳市中兴微电子技术有限公司 | A kind of data transmission method, sending device and reception device |
| CN107528663A (en) * | 2016-06-20 | 2017-12-29 | 华为技术有限公司 | The transmission method and device of control information |
| CN107528663B (en) * | 2016-06-20 | 2019-03-19 | 华为技术有限公司 | Control the transmission method and device of information |
| CN107222405A (en) * | 2017-06-26 | 2017-09-29 | 杭州绿湾网络科技有限公司 | Data transmission method and system |
| CN107222405B (en) * | 2017-06-26 | 2020-06-02 | 杭州绿湾网络科技有限公司 | Data transmission method and system |
| CN113064919A (en) * | 2021-03-31 | 2021-07-02 | 北京达佳互联信息技术有限公司 | Data processing method, data storage system, computer device and storage medium |
| CN113064919B (en) * | 2021-03-31 | 2022-11-22 | 北京达佳互联信息技术有限公司 | Data processing method, data storage system, computer device and storage medium |
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