CN1889725A - Adaptive rate consulting device and method - Google Patents
Adaptive rate consulting device and method Download PDFInfo
- Publication number
- CN1889725A CN1889725A CNA2005100805868A CN200510080586A CN1889725A CN 1889725 A CN1889725 A CN 1889725A CN A2005100805868 A CNA2005100805868 A CN A2005100805868A CN 200510080586 A CN200510080586 A CN 200510080586A CN 1889725 A CN1889725 A CN 1889725A
- Authority
- CN
- China
- Prior art keywords
- speed
- module
- synchronous
- receipts
- indication
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
A rate adaptive-consultation device consists of rate synchronous module for outputting synchronous command to rate regulation module and for receiving local receiving/transmitting rate from receiving/transmitting module and frame head command from high speed interface module as well as for sending synchronization-ending command from high speed interface module as well as for sending synchronization-ending command to rate regulation module when rate are synchronized, rate regulation module for receiving synchronous starting up command then outputting rate regulation command to receiving/transmitting module being used to regulate local receiving/transmitting rate as per rate regulation command. The rate adaptive consultation method utilizing said device is also disclosed.
Description
Technical field
The present invention relates to common public radio interface (CPRI, Common Public Radio Interface) protocol technology, particularly based on the adaptive rate consulting device and the method for CPRI agreement.
Background technology
The CPRI agreement is the main interface specification of inside of base station communication, its objective is that the Base-Band Processing/control section with the base station separates with radio frequency part, thereby the radio frequency part of base station can be zoomed out, satisfy and realize that under the situation that does not increase capacity radio frequency part covers the low cost of particular locality, and the base-band resource of each radio frequency part energy sharing base.Wherein, the CPRI agreement has been stipulated the interface specification between inside of base station radio equipment controller (REC) and the wireless device (RE), the corresponding RE of the radio frequency part of base station, the corresponding REC of the Base-Band Processing of base station/control section.So, by communicating by letter based on the CPRI agreement between RE and the REC, be achieved transfer of data between base station radio-frequency part and the base station baseband processing/control section, thereby the base-band resource that the base station radio-frequency of each far-end part can sharing base, and the control section of base station can partly be implemented control to each far end radio frequency.
Because REC is two kinds of different equipment with RE.Fig. 1 is the annexation schematic diagram between REC and the RE.Among Fig. 1, the receipts of REC/send out module 1 receives data and sends data to the transmitting line of REC from the receiving lines of REC by High-speed Interface Card 1; Similarly, the receipts of RE/send out module 2 receives data and sends data to the transmitting line of RE from the receiving lines of RE by High-speed Interface Card 2.Described High-speed Interface Card 1 and High-speed Interface Card 2 are mainly used in decodes and the data that will send is encoded the data that receive.From receiving/send out module 1 is called as REC to the circuit of High-speed Interface Card 1 transmitting line, from High-speed Interface Card 2 to receive/circuit of sending out module 2 is called as the receiving lines of RE, be called as the transmitting line of RE from receiving/send out module 2 to the circuit of High-speed Interface Card 2, from High-speed Interface Card 1 to receive/circuit of sending out module 1 is called as the receiving lines of REC.Because High-speed Interface Card 1 is two peer-entities with High-speed Interface Card 2, therefore, the receiving lines of REC and the transmitting line of RE can be regarded same circuit as, and the transmitting line of REC and the receiving lines of RE also can be used as same circuit.So also we can say: the receiving lines speed of REC is exactly the transmitting line speed unanimity of RE, and the transmitting line speed of REC is exactly the receiving lines speed of RE.
As everyone knows, the transmitting line speed of REC or RE is exactly its local receipts/speed, and described this locality is received/sent out speed and comprises: local transmission rate and local reception speed, following this paper all abbreviates a local receipts/speed as.Like this, if this locality of a REC and RE receipts/speed is inconsistent, when transfer of data, will go wrong, be exactly specifically: REC and RE adopt a this locality receipts/speed separately to receive and send data respectively, this locality receipts/the speed of REC is exactly the speed on the REC transmitting line, the just speed on the RE receiving lines.At this moment, if it is different with this locality receipts/speed of REC that speed is received/sent out in this locality of RE, then this locality of RE receipts/sending out speed will be inconsistent with the speed on the RE receiving lines, and problems such as loss of data will appear in RE when receiving data, equally, REC also similar problem can occur when receiving data.
Therefore, if make proper communication between REC and the RE, this locality of REC and RE is received/to send out speed to be consistent, this locality of REC or RE is received/to send out speed consistent with speed on the receiving lines.So before REC and RE operation, the very important person receives/sends out speed for identical this locality is set to REC and RE.But REC and RE may be from different producers, and speed set-up mode separately also may be different, and this locality when this just might cause REC and RE operation receives/speed is inconsistent, make REC and the RE both sides can not proper communication.And,, make troubles also for user's use in that local receipts the/when sending out speed, almost completely rely on artificial the participation is set.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of adaptive rate consulting device and method, can finish the rate consulation process between REC and the RE automatically, this locality of REC and RE is received/send out speed to be consistent.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of adaptive rate consulting device, this device is arranged among the REC or RE that comprises a receipts/module and High-speed Interface Card; When receiving speed adjustment indication, a described receipts/module adjusts a local receipts the/speed; This device also comprises:
The speed synchronization module, the speed adjusting module is given in output beginning indication synchronously, receive local receipts/transmission rate from a described receipts/module, reception is from the frame head indication of the receiving lines of High-speed Interface Card, and described speed adjusting module is given in end of output indication synchronously when the speed of judging a local receipts the/speed and receiving lines is synchronous;
The speed adjusting module, after described speed synchronization module reception beginning indication synchronously, the output speed adjustment is indicated to a described receipts/module; Receive when indicating synchronously, stop the output speed adjustment and indicate to described receipts/send out module from the end of described speed synchronization module.
Wherein, described speed synchronization module comprises:
The speed synchronous state machine, receive a local receipts the/speed from a described receipts/module, reception is from the indication of the frame head of the receiving lines of High-speed Interface Card, determines current local receipts the/send out the speed synchronous regime of speed and receiving lines speed and exports synchronous regime and indicate to the synchronous judge module of described speed;
The synchronous judge module of speed, described speed adjusting module is given in output beginning indication synchronously, receives the synchronous regime indication from the speed synchronous state machine; When judging that a local receipts the/speed and receiving lines speed are synchronous, end of output indication is synchronously given described speed adjusting module.
Wherein, described speed synchronous state machine comprises:
Coincidence counter, zero clearing when receiving the initial frame head indication from the receiving lines of High-speed Interface Card receives local receipts the/send out speed from receiving/send out module, by this local receipts/send out speed counting and the output count results is given described zero alignment comparison module;
Zero alignment comparison module receives from the frame head indication of the receiving lines of High-speed Interface Card with from the count results of coincidence counter, and described synchronous regime judge module is given in output zero alignment indication;
The synchronous regime judge module is judged described speed synchronous regime according to zero alignment indication from zero alignment comparison module, and the output synchronous regime is indicated to the synchronous judge module of described speed.
Wherein, described speed adjusting module comprises:
The timing signal module receives from after the synchronous indication of the beginning of the synchronous judge module of described speed, and the output timing signal adjusts control module for described speed; When reception is indicated synchronously from the end of the synchronous judge module of described speed, stop to export timing signal and adjust control module for described speed;
Speed is adjusted control module, receives that whenever timing signal is that the transmission rate adjustment is indicated to a described receipts/module.
Wherein, described timing signal module comprises:
Synchronous enabled generation module receives from after the synchronous indication of the beginning of the synchronous judge module of described speed, and output efficient synchronization enable signal also exports described counter to; When reception is indicated synchronously from the end of the synchronous judge module of described speed, export invalid synchronous enabled signal and export described counter to;
Counter when receiving the efficient synchronization enable signal, is counted and is exported count results and give described timing signal for generating module; Stop counting when receiving invalid synchronous enabled signal;
The timing signal for generating module receives from the count results of counter and produces timing signal, exports this timing signal to described speed and adjusts control module.
Wherein, this device is realized by programmable logic device FPGA or EPLD.
The invention also discloses a kind of adaptive rate consulting method, this method is applied to comprise in the adaptive rate consulting device of speed synchronization module and speed adjusting module; This method also comprises speed synchronizing process and speed adjustment process;
Described speed synchronizing process comprises:
A1. described speed synchronization module sends beginning indication synchronously to described speed adjusting module;
B1. this speed synchronization module is received/speed according to frame head indication and this locality of receiving lines, judges whether a current local receipts the/speed and receiving lines speed is synchronous, if then send end indication synchronously to described speed adjusting module; Otherwise return step B1
In the described speed adjustment process, described speed adjusting module receives steps A 1 described beginning and indicates back execution in step A2 synchronously:
A2. this speed adjusting module judges whether to receive described end and indicates synchronously, if then keep local receipts the/send out speed constant; Otherwise adjust a local receipts the/speed, return steps A 2.
Among the step B1, the speed synchronous regime transfer process that described speed synchronization module is pressed common public radio interface CPRI agreement regulation judges whether local receipts the/send out speed and receiving lines speed is synchronous.
Wherein, a described local receipts the/speed sets in advance the flank speed into current support; In the steps A 2, when this locality receipts/when a speed did not reach the minimum speed limit of current support, the local receipts of a described adjustment/speed is: received/speed reduction this locality; When this locality receipts/when a speed was reduced to the minimum speed limit of current support, the local receipts of a described adjustment/speed is: a this locality receipts/speed was set to described flank speed.
Wherein, the local receipts of a described adjustment/speed is: press timing cycle and adjust speed.
Wherein, when this method was applied to REC, described timing cycle was 4 seconds; When this method was applied to RE, described timing cycle was 1 second.
Wherein, described speed adjusting module is indicated to the receipts that are used to be provided with an a local receipts/speed/module by the transmission rate adjustment and is adjusted a local receipts the/speed.
By such scheme as can be seen, key of the present invention is: judge by the speed synchronization module whether current local receipts the/send out speed and receiving lines speed is synchronous; When judgement is asynchronous, by the speed adjusting module speed is received/sent out in this locality and adjust; When judgement was synchronous, the speed adjusting module stopped to adjust speed.
Therefore, adaptive rate consulting device provided by the present invention and method can be judged this locality receipts/speed of REC or RE and the synchronous regime between the receiving lines speed automatically, consult a local receipts/speed automatically and make it final consistent with receiving lines speed.Can simplify the operation of REC or RE equipment greatly behind employing the present invention, and can guarantee the accuracy of a local synchronously receipts the/speed and receiving lines speed, whole process need not artificial participation, implements simply, is highly susceptible to further expanding and extensively promotes.
Description of drawings
Fig. 1 is an annexation schematic diagram between radio equipment controller (REC) and the wireless device (RE);
Fig. 2 is apparatus of the present invention master-plan schematic diagram;
Fig. 3 is that structural representation is formed in apparatus of the present invention one preferred embodiment;
Fig. 4 is the speed synchronous regime transfer principle schematic diagram of CPRI agreement regulation;
Fig. 5 is that middle speed synchronous state machine one instantiation embodiment illustrated in fig. 3 is formed structural representation;
Fig. 6 is that middle timing signal module one instantiation embodiment illustrated in fig. 3 is formed structural representation;
Fig. 7 A is speed synchronizing process one a preferred embodiment handling process schematic diagram in the inventive method;
Fig. 7 B is speed adjustment process one a preferred embodiment handling process schematic diagram in the inventive method;
Fig. 8 A is the sequential schematic diagram of speed adjustment process in the embodiment of the invention;
Fig. 8 B is the sequential schematic diagram of speed synchronizing process in the embodiment of the invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The invention provides a kind of adaptive rate consulting device, this device can be arranged among REC or the RE, with receipts among REC or the RE/send out a module to link to each other with High-speed Interface Card, and this device mainly is made up of two modules, comprising: speed synchronization module and speed adjusting module.
Fig. 2 is apparatus of the present invention master-plan schematic diagram.Adaptive rate consulting device shown in Figure 2 comprises: speed synchronization module and speed adjusting module.Wherein, the speed synchronization module, output begins indication synchronously to the speed adjusting module when starting, receive/send out speed from receiving/send out module reception this locality, reception is from the frame head indication of the receiving lines of High-speed Interface Card, judge current local the receipts/whether a speed is synchronous with receiving lines speed, when judgement was synchronous, end of output indication was synchronously given the speed adjusting module; The speed adjusting module receives from after the beginning of the speed synchronization module indication synchronously, the output speed adjustment indicate to receive/send out module, receive and stop the output speed adjustment when indicating synchronously and indicate to receiving/send out module from the end of speed synchronization module.Wherein, according to the CPRI agreement, the transmission of synchronizing information is benchmark with the superframe, the cycle of each superframe is 66.67us, i.e. 256 chip (Chip) cycles, and the frame head of each superframe comprises sync byte K28.5, will send a frame head indication when High-speed Interface Card detects a K28.5 from receiving lines.
Based on master-plan schematic diagram shown in Figure 2, apparatus of the present invention one preferred embodiment is formed structural representation as shown in Figure 3.Among Fig. 3, adaptive rate consulting device is made of speed adjusting module 310 and speed synchronization module 320.Wherein, speed adjusting module 310 will be indicated by the adjustment of timing cycle transmission rate and be adjusted a local receipts the/speed, so speed adjusting module 310 comprises: timing signal module 311 and speed are adjusted control module 312; And speed synchronization module 320 comprises: the synchronous judge module 322 of speed synchronous state machine 321 and speed.Regulation according to the CPRI agreement, when REC and RE carry out rate consulation, REC will adjust a local receipts the/speed with 4 seconds timing cycle, RE will adjust a local receipts the/speed with 1 second timing cycle, therefore, when the present invention was applied to REC, described timing cycle was 4 seconds, and when the present invention was applied to RE, described timing cycle was 1 second.The following value to timing cycle of this paper only is described as 1 second or 4 seconds, no longer the applied environment of the different values of timing cycle is illustrated.
Wherein, speed synchronous state machine 321, receive/send out speed from receiving/send out module reception this locality, reception is from the frame head indication of the receiving lines of high speed connection module, according to CPRI agreement regulation the synchronous regime between the speed on a current local receipts the/speed and the receiving lines is judged, and the output synchronous regime is indicated to the synchronous judge module 322 of speed.The synchronous judge module 322 of speed, when starting, at first send beginning indication synchronously to timing signaling module 311, then according to from the synchronous regime of speed synchronous state machine indication judge current local receipts the/send out speed whether with receiving lines on speed synchronous, and finish to indicate to timing signaling module 311 synchronously judging to send when synchronous.Timing signal module 311 when receiving beginning indication synchronously, is pressed local system clock cycle property output timing signal and is adjusted control module 312 to speed; When receiving end indication synchronously, stop to export timing signal.Speed is adjusted control module 312, receives that whenever timing signal is that the output speed adjustment is indicated to receiving/send out module, and a receipts/module will be adjusted a local receipts/speed by the speed adjustment indication that receives.
Here, described speed adjustment indication will indicate a receipts/module to adopt which kind of local receipts the/speed.Usually, receive/send out the flank speed that module will adopt self to support after finishing initialization, after this, receipts/when sending out the minimum speed limit of module support, the speed adjustment indication rate corresponding that speed adjustment control module 312 is exported at every turn all are lower than a current this locality receipts/speed when a this locality receipts/speed does not reach; Receipts/when sending out the minimum speed limit of module support, speed is adjusted the speed adjustment of control module 312 outputs and is indicated the described flank speed of correspondence and when a local receipts the/speed reaches.Thereby, to receive/send out module and can reduce a local receipts the/speed gradually, the speed of receiving/sending out on speed and the receiving lines until this locality reaches synchronous.
For further understanding the operation principle of speed synchronous state machine 321, sketch the speed synchronous regime transfer process of CPRI agreement regulation below in conjunction with Fig. 4.Fig. 4 is the speed synchronous regime transfer principle schematic diagram of CPRI agreement regulation.Fig. 4 has described the transformational relation between five states.At first, start working from state 0, receiving initial frame head indication from receiving lines when, with the coincidence counter zero clearing, and be transformed into state 1, coincidence counter begins counting then.When the state 1 of being in,, then be transformed into state 2 if coincidence counter receives the frame head indication on the receiving lines when being zero once more; Otherwise return state 0.When the state 2 of being in,, then be transformed into state 3 if coincidence counter receives the frame head indication on the receiving lines when being zero once more; Otherwise return state 0.When the state 3 of being in,, then be transformed into synchronous regime if coincidence counter receives the frame head indication on the receiving lines when being zero once more; Otherwise return state 2.After arriving synchronous regime, the done state of the state exchange of also having arrived illustrates that a local receipts the/speed and receiving lines speed reach synchronous.
Here, described initial frame head indication refers to first frame head indication that receives; Stipulate that according to agreement described coincidence counter comprises: W, Y, three counters of X, their count cycle is respectively: W is 16, Y is 1,2 or 4, X is 256, and receive/send out speed by this locality respectively and count, in the agreement W, Y, X are referred to as coincidence counter, when coincidence counter is zero, the count results that shows W, Y, X is zero simultaneously.In addition, according to agreement regulation, each coincidence counter is zero and when receiving described frame head indication, shows that the speed of superframe on the current receiving lines and local receipts/send out speed are synchronous, i.e. frame synchronization; Therefore, by the state exchange of Fig. 4 relation as seen, state exchange each time all is determinating reference with frame synchronization, so frame synchronization is the basis of judging that current receiving lines speed and this locality receipts/transmission rate be whether synchronous.
Speed synchronous state machine 321 among Fig. 3 is handled according to the described state conversion process of above Fig. 4, the implementation of this speed synchronous state machine 321 has multiple, the present invention does not limit, and this paper only is that example is described in detail the operation principle of speed synchronous state machine 321 with Fig. 5.Fig. 5 is that middle speed synchronous state machine one instantiation embodiment illustrated in fig. 3 is formed structural representation.As shown in Figure 5, the speed synchronous state machine comprises: coincidence counter 501, zero alignment comparison module 502 and synchronous regime judge module 503.Coincidence counter 501, when receiving the initial frame head indication from the receiving lines of High-speed Interface Card,, receive from this locality of receiving/sending out module and receive/send out speed self zero clearing, and receive/send out speed by this this locality and count, the output count results is given zero alignment comparison module 502.Zero alignment comparison module 502, when whenever receiving the frame head indication from the receiving lines of High-speed Interface Card, whether the count results of promptly judging the coincidence counter 501 of current reception is zero, if then synchronous regime judge module 503 is given in the effectively zero alignment indication of output; Otherwise export zero invalid alignment indication and give synchronous regime judge module 503.Wherein, effectively zero alignment indication expression: coincidence counter is zero when receiving the frame head indication of described receiving lines; Invalid zero alignment indication expression: coincidence counter is non-vanishing when receiving the frame head indication of described receiving lines.Like this, synchronous regime judge module 503 indicates whether effectively can judge the synchronous state of present rate by state transition graph shown in Figure 4 according to zero alignment, and the output synchronous regime is indicated to the synchronous judge module of speed.Because the speed synchronous regime one of agreement regulation has five, therefore, the synchronous regime indication of three bits can be set, represent state 0, represent state 1 with bit value 001 with bit value 000, represent state 2 with bit value 010, represent state 3, represent synchronous regime with bit value 100 with bit value 011.Indicate five kinds of states about how synchronous regime specifically is set, belong to known technology, the present invention does not limit this, and this paper also is not described further.
In addition, the implementation of the timing signal module 311 among Fig. 3 also has multiple, and the present invention does not add qualification yet to this.Fig. 6 be embodiment illustrated in fig. 3 in timing signal module one instantiation form structural representation, only being example below with Fig. 6 is described in detail the operation principle of timing signal module 311.The timing signal module of Fig. 6 comprises: synchronous enabled generation module 601, counter 602 and timing signal for generating module 603.Wherein, synchronous enabled generation module 603 is exported synchronous enabled signal and is given counter 602, and when receiving beginning indication synchronously, it is effective to put described synchronous enabled signal, puts described synchronous enabled invalidating signal when receiving end indication synchronously.Counter 602 when receiving effective synchronous enabled signal, is counted by the system clock of this locality, and is exported count results to timing signal for generating module 603; When receiving invalid synchronous enabled signal, stop counting.Timing signal for generating module 603 produces timing signal by timing cycle and is sent to speed adjustment control module 312 according to the count results from counter 602.Here, about how to press the method that timing cycle produces timing signal according to count results, belong to known technology, this paper is not described in further detail.
To shown in Figure 6 as seen, apparatus of the present invention can judge automatically whether local receipts/transmission rate is synchronous with receiving lines speed according to above Fig. 2, adjust local receipts the/send out speed automatically and make local receipts the/send out speed moves closer to receiving lines speed and finally realization is synchronous.Wherein, each module in each functional module shown in each figure in the speed adjusting module will be undertaken beyond the work by the local system clock, and each functional module in the speed synchronization module will be come work by receipts/hair line road clock, and described receipts/hair line road clock is corresponding with a local receipts the/speed.How to carry out work about each functional module and belong to known technology by each self-corresponding clock, and the non-problem that the present invention relates to, therefore, the clock signal that receives for each functional module among Fig. 2 to Fig. 6 is also not shown, but does not influence validity of the present invention.
Based on device shown in Figure 3, the present invention also provides a kind of adaptive rate consulting method, and the processing of this method mainly comprises two parts: speed adjustment process and speed synchronizing process.Described speed synchronizing process is the course of work of speed synchronization module, and described speed adjustment process is the course of work of speed adjusting module.Respectively this two parts processing is elaborated below in conjunction with Fig. 3, Fig. 7 A and Fig. 7 B.
Fig. 7 A is speed synchronizing process one a preferred embodiment handling process schematic diagram in the inventive method.The speed synchronization module 320 of Fig. 3 comprises: the synchronous judge module 322 of speed synchronous state machine 321 and speed.Shown in Fig. 7 A, the concrete processing comprises:
Step 701: when apparatus of the present invention started, the synchronous judge module 322 of speed at first sent beginning indication synchronously to the timing signal module 311 in the speed adjusting module 310, receives/send out speed thereby speed adjusting module 310 can begin to adjust this locality.
Step 702: speed synchronous state machine 321 bases are received/speed from the frame head indication of the receiving lines of High-speed Interface Card and from this locality of receiving/sending out module, determine the synchronous regime of a current receiving lines speed and a local receipts the/speed, and the output synchronous regime is indicated to the synchronous judge module 322 of speed.
Realize principle existing description in Fig. 5 about the inside of speed synchronous state machine 321, therefore no longer describe in detail here.
Step 703: the synchronous regime indication that synchronous judge module 322 bases of speed receive judges whether a local receipts the/speed is synchronous with receiving lines speed, if current synchronous regime indication indication state is a synchronous regime, illustrate that present rate is synchronous, then execution in step 704; Otherwise return step 702.
Step 704: the synchronous judge module 322 of speed sends and finishes indication synchronously to timing signaling module 311, receives/send out speed thereby speed adjusting module 310 stops to adjust this locality, and the present rate negotiations process finishes.
Fig. 7 B is speed adjustment process one a preferred embodiment handling process schematic diagram in the inventive method.As shown in Figure 3, speed adjusting module 310 comprises: timing signal module 311 and speed are adjusted control module 312.Shown in Fig. 7 B, the concrete processing comprises:
Step 711: timing signal module 311 receives from the beginning of the synchronous judge module 322 of speed and starts working after the indication synchronously, judges whether to receive and finishes indication synchronously, if then execution in step 714; Otherwise execution in step 712.
Step 712: timing signal module 311 is that the timing signal of 1 second or 4 seconds is adjusted control module 312 to speed by local system clock output timing cycle.
Implementation method about timing signal module 311 output timing signals can no longer be described further here referring to Fig. 6.
Step 713: speed adjust control module 312 whenever receive a timing signal promptly export a speed adjustment indicate to receive/send out module, return step 711.
Step 714: timing signal module 311 stops to export timing signal and adjusts control module 312 to speed.
Here, the method to set up of speed adjustment indication is with receipts/adoptable local the receipts/a speed quantity is relevant to send out module.Such as: there are three kinds if receive/send out adoptable local receipts of a module/speed, the speed adjustment indication of dibit then can be set, bit value 00 expression is invalid and other bit value is represented effectively, wherein, speed 1 is adopted in bit value 01 expression, speed 2 is adopted in bit value 10 expressions, and speed 3 is adopted in bit value 11 expressions.The present invention does not limit for receiving/send out the adoptable local receipts/transmission rate quantity of module, does not just limit the concrete method to set up of speed adjustment indication yet.
Step 715: speed adjustment control module 312 stops the output speed adjustment and indicates to receiving/send out module, receive/send out module and no longer adjust a local receipts the/speed, speed on a local receipts the/speed and the receiving lines has arrived synchronously, thereby whole rate consulation process finishes.
Synchronous indication and timing signal are indicated, are finished in above-mentioned frame head indication, beginning synchronously, in fact be the pulse signal of corresponding function module output, they can be called frame head marker pulse, beginning lock-out pulse, finish lock-out pulse and timing signal pulse.For further understanding the sequential relationship of each signal among the present invention, the relation of the signal sequence in speed adjustment and the speed synchronizing process is illustrated referring to Fig. 8 A and Fig. 8 B.
Fig. 8 A is the sequential schematic diagram of speed adjustment process in the embodiment of the invention.Comprise 6 kinds of signals among Fig. 8 A: system clock, beginning lock-out pulse, finish lock-out pulse, synchronous enabled signal, timing signal pulse and speed adjustment indication, these signals synchronous enabled generation module, counter and timing signal for generating module and speed adjustment control module main and in the timing signal module is relevant.Wherein, system clock is the work clock that described synchronous enabled generation module, counter, timing signal for generating module and speed are adjusted control module work time institute's foundation.By Fig. 8 A as seen, after synchronous enabled generation module receives the beginning lock-out pulse, synchronous enabled signal is changed to high potential promptly effectively, this hour counter begins to count and export count results by the system clock of self and gives regularly signal generator module, thereby the timing signal for generating module can be every 1 second or timing signal pulse of output in 4 seconds.And speed is adjusted the speed adjustment of at first exporting when control module starts and is indicated corresponding initial rate, speed adjustment indication corresponding speed 1 when first timing signal pulse arrives, and corresponding another speed is indicated in the speed adjustment when next timing signal pulse arrives, and by that analogy, when last timing signal pulse arrives, speed adjustment indication corresponding speed i.Then, synchronous enabled generation module receives the end lock-out pulse, and it is promptly invalid that synchronous enabled signal is changed to electronegative potential.At this moment, counter stops counting, and the timing signal for generating module is also just no longer exported the timing signal pulse, makes speed adjust also no longer output speed adjustment indication of control module, thereby this locality of receipts/send out module is received/and that a speed remains speed i is constant.
Fig. 8 B is the sequential schematic diagram of speed synchronizing process in the embodiment of the invention.Comprise three kinds of signals among Fig. 8 B: the count results of frame head marker pulse, current receipts/hair line road clock, coincidence counter.Wherein, receipts/hair line road, current this locality clock is the clock signal of coincidence counter, zero alignment comparison module work time institute's foundation.According to as can be known noted earlier, frame synchronization is the basis of judging that current receiving lines speed and local receipts/transmission rate be whether synchronous, and therefore, the synchronous sequential relationship of speed is also based on the sequential relationship of frame synchronization.The first half of Fig. 8 B is depicted as the sequential relationship of present frame when synchronous, and the Lower Half of Fig. 8 B is depicted as the sequential relationship of present frame when asynchronous.
Among Fig. 8 B, when initial frame head marker pulse arrived, it was that count results is changed to 0 that coincidence counter is cleared.Then, coincidence counter is counted by a this locality receipts/speed.When another frame head marker pulse arrives, judge whether the count results of coincidence counter is zero, if illustrate that then present frame is synchronous; Otherwise illustrate that present frame is asynchronous.If judge frame synchronization and be transformed into synchronous regime by state conversion process shown in Figure 4 by the sequential relationship shown in Fig. 8 B, so just can determine that a current local receipts the/speed and receiving lines speed are synchronous, this locality receipts/the transmission rate that is to say current REC or RE is consistent with receipts/transmission rate of the RE of far-end or REC, thereby can normally communicate between REC and the RE.
The implementation of the invention described above can be waited by programmable logic device such as EPLD, FPGA and realize the present invention for which kind of device of concrete employing realizes not limiting, but all in protection scope of the present invention.
In sum, use apparatus of the present invention and method, can get rid of human factor substantially, automatically speed is received/sent out in this locality of REC or RE adjusts, judges whether current receiving lines speed is received with this locality/send out speed consistent, thereby finish the adaptive rate consulting process, be easy to realize the intercommunication of the REC or the RE equipment of various producers, make the operation of REC or RE equipment simpler, and can guarantee the accuracy of rate consulation, this programme is simple, exploitativeness is stronger.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (12)
1, a kind of adaptive rate consulting device is characterized in that, this device is arranged among the radio equipment controller REC or wireless device RE that comprises a receipts/module and High-speed Interface Card; When receiving speed adjustment indication, a described receipts/module adjusts a local receipts the/speed; This device also comprises:
The speed synchronization module, the speed adjusting module is given in output beginning indication synchronously, receive local receipts/transmission rate from a described receipts/module, reception is from the frame head indication of the receiving lines of High-speed Interface Card, and described speed adjusting module is given in end of output indication synchronously when the speed of judging a local receipts the/speed and receiving lines is synchronous;
The speed adjusting module, after described speed synchronization module reception beginning indication synchronously, the output speed adjustment is indicated to a described receipts/module; Receive when indicating synchronously, stop the output speed adjustment and indicate to described receipts/send out module from the end of described speed synchronization module.
2, method according to claim 1 is characterized in that, described speed synchronization module comprises:
The speed synchronous state machine, receive a local receipts the/speed from a described receipts/module, reception is from the indication of the frame head of the receiving lines of High-speed Interface Card, determines current local receipts the/send out the speed synchronous regime of speed and receiving lines speed and exports synchronous regime and indicate to the synchronous judge module of described speed;
The synchronous judge module of speed, described speed adjusting module is given in output beginning indication synchronously, receives the synchronous regime indication from the speed synchronous state machine; When judging that a local receipts the/speed and receiving lines speed are synchronous, end of output indication is synchronously given described speed adjusting module.
3, method according to claim 2 is characterized in that, described speed synchronous state machine comprises:
Coincidence counter, zero clearing when receiving the initial frame head indication from the receiving lines of High-speed Interface Card receives local receipts the/send out speed from receiving/send out module, by this local receipts/send out speed counting and the output count results is given described zero alignment comparison module;
Zero alignment comparison module receives from the frame head indication of the receiving lines of High-speed Interface Card with from the count results of coincidence counter, and described synchronous regime judge module is given in output zero alignment indication;
The synchronous regime judge module is judged described speed synchronous regime according to zero alignment indication from zero alignment comparison module, and the output synchronous regime is indicated to the synchronous judge module of described speed.
4, method according to claim 2 is characterized in that, described speed adjusting module comprises:
The timing signal module receives from after the synchronous indication of the beginning of the synchronous judge module of described speed, and the output timing signal adjusts control module for described speed; When reception is indicated synchronously from the end of the synchronous judge module of described speed, stop to export timing signal and adjust control module for described speed;
Speed is adjusted control module, receives that whenever timing signal is that the transmission rate adjustment is indicated to a described receipts/module.
5, method according to claim 4 is characterized in that, described timing signal module comprises:
Synchronous enabled generation module receives from after the synchronous indication of the beginning of the synchronous judge module of described speed, and output efficient synchronization enable signal also exports described counter to; When reception is indicated synchronously from the end of the synchronous judge module of described speed, export invalid synchronous enabled signal and export described counter to;
Counter when receiving the efficient synchronization enable signal, is counted and is exported count results and give described timing signal for generating module; Stop counting when receiving invalid synchronous enabled signal;
The timing signal for generating module receives from the count results of counter and produces timing signal, exports this timing signal to described speed and adjusts control module.
6, according to each described device of claim 1 to 5, it is characterized in that this device is realized by programmable logic device FPGA or EPLD.
7, a kind of adaptive rate consulting method is characterized in that, this method is applied to comprise in the adaptive rate consulting device of speed synchronization module and speed adjusting module; This method also comprises speed synchronizing process and speed adjustment process;
Described speed synchronizing process comprises:
A1. described speed synchronization module sends beginning indication synchronously to described speed adjusting module;
B1. this speed synchronization module is received/speed according to frame head indication and this locality of receiving lines, judges whether a current local receipts the/speed and receiving lines speed is synchronous, if then send end indication synchronously to described speed adjusting module; Otherwise return step B1
In the described speed adjustment process, described speed adjusting module receives steps A 1 described beginning and indicates back execution in step A2 synchronously:
A2. this speed adjusting module judges whether to receive described end and indicates synchronously, if then keep local receipts the/send out speed constant; Otherwise adjust a local receipts the/speed, return steps A 2.
8, method according to claim 7 is characterized in that, among the step B1, the speed synchronous regime transfer process that described speed synchronization module is pressed common public radio interface CPRI agreement regulation judges whether local receipts the/send out speed and receiving lines speed is synchronous.
9, method according to claim 7 is characterized in that, a described local receipts the/speed sets in advance the flank speed into current support; When this locality receipts/when a speed did not reach the minimum speed limit of current support, the local receipts of steps A 2 a described adjustment/speed are: speed is received/sent out in reduction this locality; When this locality receipts/when a speed was reduced to the minimum speed limit of current support, the local receipts of steps A 2 a described adjustment/speed are: a this locality receipts/speed was set to described flank speed.
According to each described method of claim 7 to 9, it is characterized in that 10, the local receipts of a described adjustment/speed is: press timing cycle and adjust speed.
11, method according to claim 10 is characterized in that, when this method was applied to REC, described timing cycle was 4 seconds; When this method was applied to RE, described timing cycle was 1 second.
According to each described method of claim 7 to 9, it is characterized in that 12, described speed adjusting module is indicated to the receipts that are used to be provided with an a local receipts/speed/module by the transmission rate adjustment and adjusted a local receipts the/speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100805868A CN100403822C (en) | 2005-06-30 | 2005-06-30 | Adaptive rate consulting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100805868A CN100403822C (en) | 2005-06-30 | 2005-06-30 | Adaptive rate consulting device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1889725A true CN1889725A (en) | 2007-01-03 |
| CN100403822C CN100403822C (en) | 2008-07-16 |
Family
ID=37578984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100805868A Active CN100403822C (en) | 2005-06-30 | 2005-06-30 | Adaptive rate consulting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100403822C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197831B (en) * | 2007-12-14 | 2010-09-08 | 中兴通讯股份有限公司 | Self-negotiation method for implementing high speed communication equipment velocity |
| CN101873192A (en) * | 2009-04-21 | 2010-10-27 | 华为技术有限公司 | Method and device for transmitting constant-rate data stream |
| CN102131248A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Rate negotiation method, data transmission system and related equipment |
| CN101296390B (en) * | 2007-04-28 | 2012-02-08 | 中兴通讯股份有限公司 | Communication method and address automatic allocation and recognition method for inside node of base station |
| CN102355321A (en) * | 2011-06-29 | 2012-02-15 | 中兴通讯股份有限公司 | Multi-rate self-adaption method of communication interface and system |
| CN103957078A (en) * | 2014-04-28 | 2014-07-30 | 深圳市华信天线技术有限公司 | Air rate self-adaptive method and system |
| CN104717050A (en) * | 2013-12-13 | 2015-06-17 | 通用电气公司 | Multiple frame rate system |
| CN106683694A (en) * | 2016-12-19 | 2017-05-17 | 西安微电子技术研究所 | Rate-adaptive storer interface circuit |
| CN106713179A (en) * | 2017-01-05 | 2017-05-24 | 京信通信技术(广州)有限公司 | Adaptive rate allocation method and network element |
| CN107645750A (en) * | 2016-07-21 | 2018-01-30 | 北京信威通信技术股份有限公司 | A kind of method and device of rate adaptive transmission configuration |
| CN111385065A (en) * | 2020-05-29 | 2020-07-07 | 湖南戎腾网络科技有限公司 | Interface rate self-adaption device and method |
| CN115277589A (en) * | 2022-06-30 | 2022-11-01 | 北京比特大陆科技有限公司 | Control data sending method, device, equipment and storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2673487B2 (en) * | 1993-12-27 | 1997-11-05 | 移動通信システム開発株式会社 | 8-phase PSK demodulator for mobile communication |
| JP2968706B2 (en) * | 1995-07-26 | 1999-11-02 | 日本電気エンジニアリング株式会社 | Mobile radio |
| US6289064B1 (en) * | 1996-03-07 | 2001-09-11 | Matsushita Communication Industrial Co., Ltd. | Synchronization equipment |
| JP2000101560A (en) * | 1998-09-24 | 2000-04-07 | Sumitomo Electric Ind Ltd | Clock synchronization circuit and transmitter |
| US6757367B1 (en) * | 1999-09-20 | 2004-06-29 | Broadcom Corporation | Packet based network exchange with rate synchronization |
| US6792059B2 (en) * | 2000-11-30 | 2004-09-14 | Trw Inc. | Early/on-time/late gate bit synchronizer |
| JP2003318869A (en) * | 2002-04-22 | 2003-11-07 | Matsushita Electric Ind Co Ltd | Radio equipment |
| US7856029B2 (en) * | 2003-11-17 | 2010-12-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Pre-start-up procedure for internal interface of distributed radio base station |
-
2005
- 2005-06-30 CN CNB2005100805868A patent/CN100403822C/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296390B (en) * | 2007-04-28 | 2012-02-08 | 中兴通讯股份有限公司 | Communication method and address automatic allocation and recognition method for inside node of base station |
| CN101197831B (en) * | 2007-12-14 | 2010-09-08 | 中兴通讯股份有限公司 | Self-negotiation method for implementing high speed communication equipment velocity |
| CN101873192A (en) * | 2009-04-21 | 2010-10-27 | 华为技术有限公司 | Method and device for transmitting constant-rate data stream |
| CN102131248A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Rate negotiation method, data transmission system and related equipment |
| CN102131248B (en) * | 2010-01-19 | 2013-12-04 | 华为技术有限公司 | Rate negotiation method, data transmission system and related equipment |
| CN102355321A (en) * | 2011-06-29 | 2012-02-15 | 中兴通讯股份有限公司 | Multi-rate self-adaption method of communication interface and system |
| CN104717050A (en) * | 2013-12-13 | 2015-06-17 | 通用电气公司 | Multiple frame rate system |
| CN104717050B (en) * | 2013-12-13 | 2019-11-01 | 通用电气公司 | Multiframe rate system |
| CN103957078A (en) * | 2014-04-28 | 2014-07-30 | 深圳市华信天线技术有限公司 | Air rate self-adaptive method and system |
| CN107645750A (en) * | 2016-07-21 | 2018-01-30 | 北京信威通信技术股份有限公司 | A kind of method and device of rate adaptive transmission configuration |
| CN106683694A (en) * | 2016-12-19 | 2017-05-17 | 西安微电子技术研究所 | Rate-adaptive storer interface circuit |
| CN106713179A (en) * | 2017-01-05 | 2017-05-24 | 京信通信技术(广州)有限公司 | Adaptive rate allocation method and network element |
| CN111385065A (en) * | 2020-05-29 | 2020-07-07 | 湖南戎腾网络科技有限公司 | Interface rate self-adaption device and method |
| CN111385065B (en) * | 2020-05-29 | 2020-09-11 | 湖南戎腾网络科技有限公司 | Interface rate self-adaption device and method |
| CN115277589A (en) * | 2022-06-30 | 2022-11-01 | 北京比特大陆科技有限公司 | Control data sending method, device, equipment and storage medium |
| CN115277589B (en) * | 2022-06-30 | 2023-08-29 | 北京比特大陆科技有限公司 | Control data sending method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100403822C (en) | 2008-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1889725A (en) | Adaptive rate consulting device and method | |
| CN1726663A (en) | Multi-processor platform for wireless communication terminal having partitioned protocol stack | |
| CN102473115B (en) | Apparatus and method for efficient data processing | |
| CN1859661A (en) | Method for transmitting multiple system radio service IQ data by general public radio interface | |
| CN1845621A (en) | Interface device for connecting dominant base and RRU | |
| CN1310896A (en) | Method for processing data to be transmitted over common channel | |
| CN101079777A (en) | Wireless communication method and system | |
| EP1876855A3 (en) | Method for relocating SRNS in a mobile communication system | |
| CN102932224A (en) | CAN network-based data communication system and data communication method based on same | |
| CN104012162B (en) | The method and device of location privacy in communication network | |
| CN1255956C (en) | Method for dynamic transmitter training for shared communication system utilizing dynamic channel allocation | |
| CN1882126A (en) | Method for realizing data transmission between baseband-processing unit and RF processing unit | |
| CN1112003C (en) | Loop back device of packet communication T1 network | |
| CN113518333B (en) | Data transparent transmission method and device, bluetooth device and BLE chip | |
| CN101030937A (en) | Multilevel random accessing method based on packet | |
| CN1612501A (en) | Transmitting data using multi-frames | |
| CN1783876A (en) | System and method for realizing packet data polymerized protocol function | |
| CN101128025A (en) | Method for transmitting wireless access capability information of terminal with scheduling request in random access | |
| CN1770713A (en) | Addressing system for cascade networking and its method | |
| CN1455531A (en) | Communication method for performing all-tier protocol stack processing by base station side | |
| CN1281016C (en) | Method for packet data scheduling of multi-level service in CDMA mobile communication system | |
| US20120093175A1 (en) | Method and apparatus of transmitting packet in communication system | |
| CN110061802A (en) | Multi-user data transfer control method, device and data transmission set | |
| CN106788947A (en) | Full-duplex wireless communications module based on 433MHz | |
| CN110036670A (en) | A kind of method and apparatus of wake-up device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |