CN100576842C - The method and apparatus of RNC user's face load balancing synchronously and in the synchronizing process - Google Patents
The method and apparatus of RNC user's face load balancing synchronously and in the synchronizing process Download PDFInfo
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Abstract
A kind of radio network controller (RNC) transport channel synchronization and the method and apparatus that in synchronizing process, makes user's face load balancing.Described equalization methods may further comprise the steps: segmentation procedure, with the processing in user's face be divided into independently, inseparable processing unit (EPS); Synchronizing step by repeatedly estimating the time delay scope synchronously, determines that in conjunction with the arrival window size of this time delay scope and Node B side the transmission of RNC side allows time range; The processing time calculation procedure goes out estimation time (EPT) corresponding to each processing unit by simulation calculation; Treatment step is selected possible underload point for each transmission time interval and is sent in described transmission allows time range.
Description
Technical field
The present invention relates to radio network controller (RNC), specifically, relate to method and apparatus that makes the RNC transport channel synchronization and the method and apparatus that in synchronizing process, makes user's face load balancing.
Background technology
In general, in the RNC system, by transmission channel synchronously, obtain Node B (Node B) side for sending requirement regularly, in strict accordance with waiting TTI (transmission time interval) transmission data at interval, the time that makes data arrive Node B drops in the time of reception window (abbreviating receiver window as) of Node B then.Fig. 1 represents the synchronization structure schematic diagram between RNC and Node B.Timing on the transmission channel is determined by Connection Frame Number (CFN), and CFN is determined by System Frame Number (SFN) and a deviate).For example in Fig. 1, CFN is 149-153, and corresponding SFN is 1635-1639.Before through air interface data being sent out, Node B has a processing time point (LTOA) at the latest, puts the data that arrive before between at this moment, and Node B has time enough to handle.For example, the T among Fig. 1
ProcFor handling a processing time that Frame is required, LTOA is for handling the point of processing time at the latest of No. 152 Frame.For fear of border condition, Node B has reserved a surplus (being the t3 time period among Fig. 1), i.e. certain hour window time of advent terminal point (TOAWE) before the point of processing time at the latest.Node B requires the data of corresponding CFN to arrive (for example in Fig. 1, the receiver window of No. 152 Frame is the time period shown in the t2) between the window starting point time of advent (TOAWS) and the window terminal point time of advent (TOAWE).So the purpose of transport channel synchronization is determined delivery time in the RNC side exactly, make data in the receiver window that NodeB requires, arrive Node B, the scope of this receiver window is expressed as [TOAWS, TOAWE].
Specifically, the data on the window terminal point time of advent (TOAWE) the expression down link should arrive the time point of Node B before it.TOAWE is defined as one " processing time at the latest " (LTOA) time point of certain before millisecond number, and its numerical value is described time of advent of window terminal point and time interval between the processing time at the latest.It should " processing time at the latest " be after the factors such as final time that the inner time delay that has taken into full account Node B, Node B can in time handle the downlink transfer of specifying CFN (Connection Frame Number) and established data frame last time of advent.TOAWE is by the control plane setting, and if data before TOAWE, do not arrive, so Node B will to control radio network controller (CRNC) send one time calibration control frame, with the calibration delivery time.
Data on the window starting point time of advent (TOAWS) the expression down link should arrive the time point of Node B after it.TOAWS is defined as the time point of certain millisecond number before the TOAWE, its numerical value be the time of advent window starting point and time of advent window terminal point between the time interval, promptly equal the time span of receiver window.TOAWS is by the control plane setting, if data arrived before TOAWS, so Node B will to CRNC send one time calibration control frame, with the calibration delivery time.If there is not special declaration in this article, TOAWS and TOAWE express time point or constantly all then, and TOAWS and TOAWE are illustrated in the above numerical value of definition in formula, promptly, TOAWE represents described time of advent of window terminal point and time interval between the processing time at the latest, TOAWS represent the time of advent window starting point and time of advent window terminal point between the time interval.
It in the time of advent shown in Fig. 1 (TOA) difference of actual time of arrival of descending IubFP (the Iub interface user plane Frame Protocol) frame of TOAWE and specific CFN.Represent that on the occasion of TOA this frame received before TOAWE, and negative value TOA represents that this frame receives after TOAWE.
In above-mentioned transport channel synchronization process, because the timing relationship between each transmission channel has certain independence, the TTI transmission cycle can be configured to 80ms, 40ms, 20ms and 10ms, cause the appearance of delivery time to have certain random distribution nature, might cause transmission lag because of the peak value that load occurs.In addition, equilibrium is not carried out in load, reduced the performance that user's face is handled, cause on the transmission network user plane data transfer load not steady simultaneously, thereby cause the estimation of transmission characteristic inaccurate.
In addition, the data that send in order to guarantee drop in the receiver window exactly, need a kind ofly to consider network jitter and delay, accurately to estimate the method for synchronous of transmission characteristic.
Summary of the invention
In order to solve the problem of RNC load balancing, according to an aspect of the present invention, provide a kind of method that in radio network controller (RNC) transport channel synchronization process, makes user's face load balancing at this, it is characterized in that may further comprise the steps: segmentation procedure is used for that processing with user's face is divided into independently, inseparable processing unit; Synchronizing step by repeatedly estimating the time delay scope synchronously, determines that in conjunction with this time delay scope and recipient's receiver window size the transmission of transmit leg allows time range; The processing time calculation procedure is used to calculate estimation time corresponding to each processing unit, inserts new processing unit and inserting the processing time of upgrading the processing unit that is sent of this delivery time behind the processing unit at suitable delivery time; Treatment step is handled the processing unit of each transmission time interval in described transmission allows time range, and the data of selecting the underload point to carry out processing unit send.
According to another aspect of the present invention, provide a kind of radio network controller at this, it is characterized in that comprising with lower device: segmenting device is used for that processing with user's face is divided into independently, inseparable processing unit; Synchronizer by repeatedly estimating the time delay scope synchronously, determines that in conjunction with this time delay scope and recipient's receiver window size the transmission of transmit leg allows time range; The processing time calculation element is used to calculate estimation time corresponding to each processing unit, inserts new processing unit and inserting the processing time of upgrading the processing unit that is sent of this delivery time behind the processing unit at suitable delivery time; Processing unit is handled the processing unit of each transmission time interval in described transmission allows time range, and the data of selecting the underload point to carry out processing unit send.
In order to solve the stationary problem of radio network controller, also provide a kind of radio network controller method for synchronous at this, it is characterized in that may further comprise the steps: one subsynchronous in, repeatedly send the down-going synchronous frame; According to the transmitting time of described down-going synchronous frame, to carrying out normalization each down-going synchronous frame arrival recipient's the time of advent; And according to normalized time of advent scope, network jitter scope and receiver window time span determine to allow the time interval that sends.
According to another aspect of the present invention, provide a kind of radio network controller synchronizer at this, it is characterized in that comprising: the synchronization frame dispensing device is used for repeatedly sending the down-going synchronous frame one subsynchronous; The normalization device is used for the transmitting time according to described down-going synchronous frame, to carrying out normalization each down-going synchronous frame arrival recipient's the time of advent; Transmitting time is interval determines device, be used for according to normalized time of advent scope, network jitter scope and receiver window time span determine to allow the time interval that sends.
According to reference to the accompanying drawings with the detailed description of exemplary embodiment, it is obvious that the features and advantages of the present invention will become.
Description of drawings
Figure 1 shows that the synchronization structure between RNC and Node B;
Figure 2 shows that the schematic diagram of the synchronization structure of multistandard wireless access network controller (MxRANC) and Node B;
Figure 3 shows that the flow chart of the method according to this invention;
Figure 4 shows that the block diagram that in the RNC synchronizing process, makes the equipment of user's face load balancing according to of the present invention; And
Figure 5 shows that block diagram according to RNC synchronizer of the present invention.
Describe according to a preferred embodiment of the invention below in conjunction with accompanying drawing.
Embodiment
Figure 2 shows that the synchronization structure of multistandard wireless access network controller (MxRANC) and Node B.Fig. 3 represents the flow chart of the inventive method.Below with reference to Fig. 2 and Fig. 3 the inventive method is described.
As shown in Figure 2, one subsynchronous in, the down-going synchronous frame is according to being configured to 10 milliseconds (radio frames) for repeatedly sending at interval down link (DL) transmission channel synchronization frame.During each the transmission, the entrained Connection Frame Number (CFN) of synchronization frame adds 1 successively, so that determine the corresponding relation between synchronization frame delivery time and the time of advent TOA, and considers and the propagation delay time shake delivery time is normalized to same starting point constantly.With the reference point of this starting point moment as the time.
Node B returns the uplink synchronous frame in response to this radio access network controller after the transmission channel synchronization frame that receives from radio access network controller.The transmission channel synchronization frame that carries in this uplink synchronous frame from radio access network controller arrives the time of advent (TOA) of Node B and the CFN of corresponding transmission channel synchronization frame.Described with reference to Fig. 1 as mentioned, this TOA is a reference point with the window terminal point time of advent (TOAWE), poor for TOAWE and actual time of arrival, than the Zao person of TOAWE be on the occasion of, be negative value than the late person of TOAWE.
After synchronizing process timer expiry or radio access network controller receive conduct all uplink synchronous frames to the response of descending transmission channel synchronization frame from NodeB, according to the delivery time of corresponding transmission channel synchronization frame and with CFN, the TOA that carries in all uplink synchronous frames of receiving is carried out normalization.After normalization,, all can think the moment that equals 0 at RNC frame number (RFN) transmission channel synchronization frame that has identical CFN to be sent to NodeB for all synchronization frames.The TOA that all uplink synchronous frames that receive according to radio access network controller carry determines the scope [TOAmin, TOAmax] (scope among Fig. 2 shown in the T1) of TOA.In real work; because it is limited that system carries out synchronous number of times; therefore the TOA that only carries according to limited uplink synchronous frame from Node B feedback can't truly reflect the shake of transmission network; thereby the protection variable Tmargin of introducing expression network jitter scope; its implication is that under the true time delay situation in transmission network, the TOA scope should be [TOAmin-Tmargin; TOAmax+Tmargin] (that is the scope shown in the T2 among Fig. 2).
Then, based on the transmitting time of transmission channel synchronization frame (promptly, the delivery time of the frame of RNC frame number RFN=0), arrive the scope [TOAmin-Tmargin time of advent of Node B, TOAmax+Tmargin] and the receiver window scope of Node B determine that radio access network controller carries out the time interval [RFNmin, RFNmax] that sends.
Two parallelogram shown in Figure 2, one of them parallelogram is parallel relative edge with B, B ', and another parallelogram is the relative edge with A, A '.Its expression is RFN the scope T2 time of advent of 0 synchronization frame when moving in the scope of receiver window, and the scope of corresponding delivery time should be the time interval shown in the figure [RFNmin, RFNmax].
The numerical value that can obtain RFNmin, RFNmax according to the relation among the figure is as follows:
RFNmin＝(TOAmax+Tmargin-TOAWS) (1)
RFNmax＝(TOAmin-Tmargin) (2)
Wherein, the numerical value of RFNmin, RFNmax all is the time value with respect to the delivery time of RFN=0, corresponds respectively to line segment A, the B floor projection length on RNC (t) axle in Fig. 2.As indicated above, TOAmax, TOAmin in above-mentioned formula (1) and the formula (2) and the numerical value of TOAWS all are that wherein the value of TOAWS equates with the time span of receiver window with respect to the TOAWE time interval constantly.
In conjunction with the transmission network delay character of Fig. 2 and the load EPT (estimation time) on each delivery time point, can insert time point determined transmitting time interval [RFNmin, RFNmax] interior choosing constantly with respect to RFNmin, make:
(EPTold+EPTnew_event)＜EPTthreshold (3)
Wherein EPTold is the estimation time of original load, and EPTnew_event is for handling the new required estimation time of inserting of incident, and EPTthreshold is the threshold value of predetermined estimation time.After inserting new events, the relevant estimation time that sends the load on the point is updated to the estimation time of original load and the estimation time sum of new insertion incident, i.e. EPTold=EPTold+EPTnew_event.
If in certain transmission time interval (TTI), can't find suitable insertion time point, then report synchronization failure, show that the processing load of user's face is overweight.
In the time adjustment process, because each TTI delivery time is not a constant duration, therefore might occur because the transmission network time delay changes, cause the data of certain TTI to exceed NodeB side arrival window, but other TTI data are the situation in window also, therefore the time adjustment process should be carried out at some TTI, rather than carries out at whole transmission channel.
Describe according to one embodiment of the method for the invention below in conjunction with Fig. 3.
As shown in Figure 3, the inventive method comprises 4 steps, i.e. segmentation procedure 110, synchronizing step 120, processing time calculation procedure 130 and treatment step 140.
In segmentation procedure 110, with the processing in user's face be divided into independently, inseparable processing unit (EPS).
With descending packet switched data is example, the RNC user face data receives from GTP (GPRS Tunnel Protocol) interface, handles afterwards in particular moment sending to Node B (about the description of particular moment referring to above about the description of synchronizing process) through RLC (wireless chain control layer), MAC (medium access control) and FP (Frame Protocol) protocol stack.Can the processing of a packet switched data bag be divided into following two processing units according to practical design:
1. receive data from the GTP interface, after RLC handles, leave in the RLC buffer;
2. if arrive particular moment, then RLC is according to the selection of actual transmissions form (TF), the packet of right quantity is sent to the MAC layer, packet is sent to the FP layer after in the MAC layer, adding header (according to service needed), after the FP layer adds the FP protocol header, packet sent to Node B.
In step 120,, determine that in conjunction with the arrival window size of this time delay scope and Node B side the transmission of RNC side allows time range by repeatedly estimating the time delay scope synchronously.Preferably, step 120 also comprises transmission down-going synchronous frame step 121, normalization step 122 and definite time range step 123.
Wherein, in sending down-going synchronous frame step 121, carry out several times synchronously, repeatedly send the down-going synchronous frame according to configuration in subsynchronous one, when sending at every turn, in the synchronization frame with Connection Frame Number (CFN) add 1 successively.
In normalization step 122, Node B returns the time of advent (TOA) of carrying the Connection Frame Number corresponding with this down-going synchronous frame and this down-going synchronous frame arrival Node B after receiving a down-going synchronous frame, at the synchronizing process timer expiry or after receiving all uplink synchronous frames, obtain the delivery time of the down-going synchronous frame corresponding according to the Connection Frame Number in the uplink synchronous frame, all TOA that receive are carried out normalization according to this delivery time with this Connection Frame Number.Normalized purpose is in order to draw the scope from the delivery time of Frame to the time interval between the due in that arrives Node B.Because the propagation delay time shake, delivery time has the scope of a variation to the time interval between the due in.Test by repeatedly sending synchronization frame, can draw described excursion approx.Owing to all be to send synchronization frame at every turn at different delivery times, therefore carry out normalization by the due in that all are received, can draw the scope of the due in of Frame on Node B that sends at a certain delivery time.For example, send synchronization frame constantly at 10ms, 30ms and 50ms respectively with respect to certain time reference 0ms, the due in of their correspondences is respectively 70ms, 80ms and 120ms.Drawing delivery time to the time interval between the due in is respectively 60ms, 50ms and 70ms, and then the scope time of advent after the normalization is the minimum value and the time interval between the maximum [50ms, 70ms] in these time intervals.This due in that is equivalent to the Frame that sends constantly at 0ms should be in this time interval [50ms, 70ms].Consider that actual normalization time interval should be bigger than the time interval that obtains with the synchronization frame test, therefore introduce a protection variable Tmargin, this time interval is suitably expanded as [50ms-Tmargin, 70ms+Tmargin].
In definite time range step 123, determine that the transmission of radio network controller side allows interval be [RFNmin, RFNmax], determine the numerical value of RFNmin and RFNmax according to above-mentioned formula (1) and formula (2), that is:
RFNmin＝(TOAmax+Tmargin-TOAWS)，
RFNmax＝(TOAmin-Tmargin)，
Wherein the implication of each parameter and numerical value are with mentioned above identical.
In step 130, go out estimation time (EPT) corresponding to above-mentioned each processing unit by simulation calculation.Preferably, step 130 also comprises data event inserting step 131 and load estimation time step of updating 132.In data event inserting step 131, in conjunction with the delay character of transmission network and the load estimation time on each delivery time point, from the RFNmin side choose satisfied (EPTold+EPTnew_event) but＜insertion point of EPTthreshold condition, insert and send data event.In load estimation time step of updating 132, according to the processing time of different event, the relevant load estimation time that sends on the point is updated to the estimation time of original load and the estimation time sum of new insertion incident, i.e. EPTold=EPTold+EPTnew_event.Preferably, each synchronously in time interval of transmission down-going synchronous frame be 10ms.
In treatment step 140, processing unit in each timeslice is handled, and when the data transmission takes place in this processing procedure, send for each TTI selects possible underload point in described transmission allows time range, wherein said timeslice is the time interval between the adjacent delivery time point.Specifically, judge in step 141 whether the current time sheet finishes, if the current time sheet finishes then switches to next timeslice; Otherwise proceed to step 143.Judge whether that in step 143 processing unit regularly needs to handle, need processing unit regularly, then handle this processing unit regularly, and turn back to step 141 in step 144 if exist; Otherwise proceed to step 145.Judge whether that in step 145 processing unit of non-timed needs to handle,, then handle the processing unit of this non-timed, and turn back to step 141 in step 146 if there is the non-timed processing unit that needs processing; Otherwise directly turn back to step 141.As indicated above, the preferential processing unit (as the transmission of downlink data, the data transmission on the up Iu interface etc.) regularly of carrying out is to guarantee the time response requirement of system.All with relevant finishing dealing with regularly after, adjust transmitting time again, dispatch the EPS of non-timed of the operation and so on of control messages processing EPS for example.Send data if desired in the process of handling each processing unit, then the data of selecting possible underload point to carry out processing unit for each TTI send.
Figure 4 shows that the block diagram that in the RNC synchronizing process, makes the equipment of user's face load balancing according to of the present invention.As shown in FIG., load-balancing device according to the present invention comprises four devices: segmenting device 101, synchronizer 102, processing time calculation element 103 and processing unit 104.
Wherein, segmenting device 101 is used for that processing with user's face is divided into independently, inseparable processing unit (EPS); Synchronizer 102 is used for determining in conjunction with the arrival window size of this time delay scope and Node B side that by repeatedly estimating the time delay scope synchronously the transmission of RNC side allows time range; Processing time calculation element 103 is used for going out estimation time (EPT) corresponding to each processing unit by simulation calculation; Processing unit 104 is used for sending for each TTI selects possible underload point in described transmission allows time range.
Preferably, in described processing unit 104, priority treatment needs EPS regularly, after all relevant with timing finishing dealing with, dispatches the EPS of non-timed again.
Preferably, in described processing unit 104, the time adjustment process is carried out at each TTI.
Preferably, in described synchronizer 102, carry out the operation of in the step of describing above with reference to Fig. 3 120, carrying out.
Preferably, in described processing time calculation element 103, carry out the operation of in the step of describing above with reference to Fig. 3 130, carrying out.
Preferably, in each synchronizing process, the time interval that sends the down-going synchronous frame is 10ms.
Above with reference to the flow chart description load-balancing method of the present invention of Fig. 3 the time, described according to RNC method for synchronous of the present invention.Below with reference to Fig. 5 structure and operation principle according to RNC synchronizer 102 of the present invention are described more specifically.
Figure 5 shows that block diagram according to RNC synchronizer 102 of the present invention.As shown in FIG., synchronizer 102 according to the present invention comprises the interval definite device 204 of synchronization frame dispensing device 201, synchronization frame receiving system 202, normalization device 203 and transmitting time.
Describe operation principle below in detail according to synchronizer of the present invention.
In synchronizing process, synchronization frame dispensing device 201 at first sends a plurality of down-going synchronous frames.The frame number that comprises this down-going synchronous frame of unique identification in each down-going synchronous frame, so that the recipient specifically determines the time of reception of each down-going synchronous frame, promptly the down-going synchronous frame arrives recipient's the time of advent.The transmitting time of storing each down-going synchronous frame when synchronization frame dispensing device 201 sends the down-going synchronous frame.After receiving a down-going synchronous frame, the recipient measures the time of advent of this down-going synchronous frame, and extract the frame number of this down-going synchronous frame, then the frame number of this down-going synchronous frame and the corresponding time of advent are placed a uplink synchronous frame, and this uplink synchronous frame is sent to the transmit leg of corresponding uplink synchronous frame.Receive the uplink synchronous frames by the synchronization frame receiving system in the described synchronizer 202, and extract the frame number that wherein comprises and the time of advent of corresponding down-going synchronous frame.The frame number of the down-going synchronous frame that normalization device 203 extracts according to synchronization frame receiving system 202 and by the transmitting time of the corresponding down-going synchronous frame with identical frame number of synchronization frame dispensing device 201 storages, to carrying out normalization the time of advent that comprises in the uplink synchronous frame that is received.Can determine the scope of the time delay from the delivery time to the time of reception according to the normalization result of a plurality of synchronization frames, thus the estimation network transmission characteristic.
As indicated above, because it is limited sending the number of times of down-going synchronous frame, therefore only according to the shake that can't truly reflect transmission network the time of advent from limited uplink synchronous frame carries, thereby introducing network jitter scope, be equivalent to widen the transmission delay scope of actual measurement, to reflect transmission characteristic more exactly.
At last, transmitting time is interval determine device 204 according to normalized time of advent scope, network jitter scope and receiver window time span determine to allow the time interval that sends, drop on exactly in the scope of described receiver window to guarantee the data that sent.
In the detailed description in front,, wherein show and to realize specific embodiment of the present invention by diagram with reference to the accompanying drawing of a part that forms this description.Those of ordinary skill in the art fully described these embodiment and some modification thereof above in detail, so that can realize the present invention.Should be appreciated that under the situation that does not depart from essence of the present invention or scope, can adopt other embodiment that is fit to, and can carry out logic, machinery and change electricity.For example, under the situation that does not depart from essence of the present invention or scope, can further merge or separate the functional block shown in the figure by any way.For fear of unnecessary details, this specification has omitted known some information of those of ordinary skill in the art.Therefore, above detailed description is not the particular form that is intended to be limited in this proposition, and on the contrary, it is intended to cover the essence and interior those changes, modification and the equivalents of scope that can reasonably be included in claims.
Claims (10)
1. method that makes user's face load balancing in radio network controller (RNC) transport channel synchronization process is characterized in that may further comprise the steps:
Segmentation procedure is used for that processing with user's face is divided into independently, inseparable processing unit;
Synchronizing step by repeatedly estimating the time delay scope synchronously, is determined the time interval that the permission of transmit leg sends in conjunction with the time span of this time delay scope and recipient's receiver window;
The processing time calculation procedure is used to calculate estimation time corresponding to each processing unit, inserts new processing unit and inserting the processing time of upgrading the processing unit that is sent of this delivery time behind the processing unit at suitable delivery time; And
Treatment step is handled the processing unit of each transmission time interval in the time interval that described permission sends, and the data of selecting the underload point to carry out processing unit send.
2. according to the method for claim 1, it is characterized in that when each the transmission, described treatment step priority treatment needs processing unit regularly, and then handles the processing unit of non-timed.
3. according to the method for claim 1, it is characterized in that, further comprising the steps of in the described synchronizing step:
One subsynchronous in, repeatedly send the down-going synchronous frame, comprise frame number in the wherein said down-going synchronous frame;
Receive the uplink synchronous frame corresponding, comprise corresponding down-going synchronous frame in the wherein said uplink synchronous frame and arrive recipient's the time of advent and the frame number of the down-going synchronous frame of correspondence with described down-going synchronous frame;
According to the transmitting time and the frame number of the down-going synchronous frame corresponding, the down-going synchronous frame that comprises in all uplink synchronous frames of receiving is carried out normalization the time of advent with each uplink synchronous frame;
The time span of scope, network jitter scope and described receiver window determines to allow the time interval that sends according to normalized time of advent.
4. according to the method for claim 3, it is characterized in that described processing time calculation procedure comprises:
When inserting new processing unit, estimate the new required processing time of processing unit, and the lower limit side of the time interval that sends in described permission choose make the required processing time sum of processing time of original processing unit and new processing unit less than the delivery time point of predetermined threshold to insert new processing unit;
The processing time that to work as pretreatment unit is updated to the processing time sum of processing time of inserting the preceding original processing unit of new processing unit and the processing unit that newly inserts.
5. according to the method for claim 4, it is characterized in that, make the required processing time sum of processing time of original processing unit and new processing unit less than the delivery time point of predetermined threshold, then report failure if can not find.
6. radio network controller is characterized in that comprising with lower device:
Segmenting device is used for that processing with user's face is divided into independently, inseparable processing unit;
Synchronizer, court of a feudal ruler scope when repeatedly estimating is synchronously determined the time interval that the permission of transmit leg sends in conjunction with the time span of this time delay scope and recipient's receiver window;
The processing time calculation element is used to calculate estimation time corresponding to each processing unit, inserts new processing unit and inserting the processing time of upgrading the processing unit that is sent of this delivery time behind the processing unit at a delivery time;
Processing unit is handled the processing unit of each transmission time interval in the time interval that described permission sends, and the data of selecting the underload point to carry out processing unit send.
7. according to the radio network controller of claim 6, it is characterized in that when each the transmission, described processing unit priority treatment needs processing unit regularly, and then handles the processing unit of non-timed.
8. according to the radio network controller of claim 6, it is characterized in that described synchronizer also comprises as lower device:
The synchronization frame dispensing device is used for repeatedly sending the down-going synchronous frame one subsynchronous, comprises frame number in the wherein said down-going synchronous frame;
The synchronization frame receiving system is used to receive the uplink synchronous frame corresponding with described down-going synchronous frame, comprises corresponding down-going synchronous frame in the wherein said uplink synchronous frame and arrives recipient's the time of advent and the frame number of the down-going synchronous frame of correspondence;
The normalization device is used for transmitting time and frame number according to the down-going synchronous frame of each uplink synchronous frame correspondence, to carrying out normalization the time of advent of the down-going synchronous frame that comprises in all uplink synchronous frames of receiving; And
Transmitting time is interval determines device, be used for according to normalized time of advent scope, network jitter scope and described receiver window time span determine to allow the time interval that sends.
9. radio network controller according to Claim 8, it is characterized in that, described processing time calculation element is used for: when inserting new processing unit, estimate the new required processing time of processing unit, and the lower limit side of the time interval that sends in described permission choose make the required processing time sum of processing time of original processing unit and new processing unit less than the delivery time point of predetermined threshold to insert new processing unit; The processing time that to work as pretreatment unit is updated to the processing time sum of processing time of inserting the preceding original processing unit of new processing unit and the processing unit that newly inserts.
10. according to the radio network controller of claim 9, it is characterized in that, make the required processing time sum of processing time of original processing unit and new processing unit less than the delivery time point of predetermined threshold, then report failure if can not find.
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