CN100426737C - Iub interface flow control plan - Google Patents
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- CN100426737C CN100426737C CNB2005100280713A CN200510028071A CN100426737C CN 100426737 C CN100426737 C CN 100426737C CN B2005100280713 A CNB2005100280713 A CN B2005100280713A CN 200510028071 A CN200510028071 A CN 200510028071A CN 100426737 C CN100426737 C CN 100426737C
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Abstract
The present invention discloses an Iub interface flow control scheme of WCDMAR5 and subsequent compatible versions, which relates to the communication field. The scheme enhances the utilization ratio of Iub interface bandwidth. In the present invention, an interface flow control method for enhancing the utilization rate of Iub bandwidth under the condition that HSDPA users and R99 users share the Iub bandwidth is put forward. When the current residual assignable Iub bandwidth exceeds an upper and a lower thresholds, the flow of all HSDPA users in a Node B is reassigned. When the cache capacity of the HSDPA users exceeds the upper threshold, an RNC is required to stop sending. When the user cache capacity is lower than the lower threshold, the RNC is required to assign flow concordant to an air interface. When the user cache capacity is zero, the RNC is required to assign the flow greater than the air interface. In addition, the present invention also defines delay zones for various thresholds.
Description
Technical field
The present invention relates to the communications field, particularly the Iub interface flow control technique of R5 and follow-up compatible version in Wideband Code Division Multiple Access (WCDMA) (Wideband Code DivisionMultiple Access is called for short " the WCDMA ") communication technology.
Background technology
Mobile communication is the focus of nearly a period of time development communication technologies, and its swift and violent impetus especially is embodied on the WCDMA of one of 3G (Third Generation) Moblie global standards.Up to the present, released the procotol of R99, R4, R5 three phases.
One of key property of WCDMA technology R5 version is exactly that high speed downlink packet inserts (HighSpeed Downlink Packet Access is called for short " HSDPA "), and basic ideas are to set up the shared transmission channel of a high speed to improve message transmission rate.The introducing of HSDPA technology makes data in Iub mouth (standard interface between radio network controller (RNC) and the base station node B) transmission on original dedicated channel data, common channel data basis, has increased the HSDPA data.The transmission of data on Iub will take certain transmission bandwidth.The Iub bandwidth of the data occupancy of dedicated channel and common signal channel is according to the service conditions fixed allocation of transmitting on its channel.And the transmission channel of HSDPA is owing to be shared channel, and a plurality of user data are in same channel.The major part of HSDPA channel is the back-end data business, and the size of packet and speed are constantly to change, and the real-time that logarithm reportedly send is less demanding.Therefore the Iub bandwidth to the HSDPA channel allocation can adopt uncertain mode, and the Iub bandwidth situation that takies according to Iub total bandwidth and other dedicated channels and common signal channel and adjusting at any time is with better utilization Iub bandwidth.
In the WCDMA agreement, between RNC and NodeB, defined requests for capacity and capacity allocation process and controlled the transmission of HSDPA data on Iub.Capacity request procedure as shown in Figure 1, the capacity allocation process is as shown in Figure 2.Requests for capacity and capacity allocation process are undertaken by requests for capacity control frame and capacity allocation control frame, and these two control frames all are at the HSDPA data flow of designated user.
Specifically, RNC indicates the storage condition of HSDPA data at RNC by the requests for capacity control frame, and requires NodeB to respond the capacity allocation control frame to distribute this HSDPA user's data transmission capacity; NodeB informs the time that speed that the operable HSDPA data flow of RNC sends and this speed exist by the capacity allocation control frame, and NodeB can respond the capacity allocation control frame and give RNC receiving after RNC issues the requests for capacity control frame.In addition, NodeB also can initiatively send the requests for capacity control frame to RNC according to the requirement of oneself.
The form of the defeated channel control frame of Iub oral instructions as shown in Figure 3.Control frame header parameter is as shown in the table.
Table 1 control frame header parameter declaration
The form of requests for capacity control frame and capacity allocation control frame is identical with general format, discerns by the sign of the control frame type in the frame head.The form of the loading section of requests for capacity control frame as shown in Figure 4.The frame head of capacity allocation control frame is identical with previously described control frame frame head, and loading section as shown in Figure 5.HS-DSCH capacity request frame debt parameter declaration is as shown in table 2.HS-DSCH capacity allocation control frame parameter is as shown in table 3.
The explanation of table 2HS-DSCH requests for capacity control frame load parameter
| Index | Field Type | Description | Value range | Field length(bits) |
| 1 | CmCH-PI | The priority indication | {0...15} | 4 |
| 2 | User Buffer Size | The indication user data is in the data in buffer amount of RNC, and unit is byte | {0-65535} | 16 |
| 3 | Spare Extension | At present need not, this position can add new IE information and supports back compatible from now on | 0-32octets |
Table 3HS-DSCH capacity allocation control frame parameter declaration
| Index | Field Type | Description | Value range | Field length(bits) |
| 1 | CmCH-PI | The priority indication | {0...15} | 4 |
| 2 | Maximum MAC-d PDU Length | The size of the maximum MAC-d PDU that indication RNC data allow when sending | {0-5000} | 13 |
| 3 | HS-DSCH Credits | Indication in an effective HS-DSCH Interval time, the MAC-d PDUs number of RNC transmission | {0-2047} | 11 |
| 4 | HS-DSCH Interval | Indication needs the MAC-d PDUs number of transmission HS-DSCH Credits definition to give NodeB in this official hour interval | {0-2550} ms | 8 |
| 5 | HS-DSCH Repetition Period | Indicate number effective period of continuous HS-DSCH Interval | {0-255} | 8 |
| 6 | Spare Extension | At present need not, this position can add new IE information and supports back compatible from now on | 0-32octets |
Can know that from above explanation RNC tells the storage condition of NodeB user data at RNC by the requests for capacity control frame, and require NodeB to respond the capacity allocation control frame requests for capacity control frame and capacity allocation control frame; NodeB informs the speed of the operable HSDPA data flow transmission of RNC and the time that this speed exists by the capacity allocation control frame.The content of the capacity allocation control frame that RNC can send according to NodeB determines whether carrying out the transmission of HSDPA data and the size of transmission rate.
The data of the dedicated channel of Iub mouth and the data of common signal channel all send to NodeB by RNC, and the HSDPA data also send to NodeB by RNC.Therefore, generally the flow control to the HSDPA data flow realizes with the control dependence RNC that avoids Iub mouth data congestion, the capacity allocation control frame of NodeB side mainly is that the HSDPA data traffic on the control Iub mouth adapts with the data transmitted traffic of eating dishes without rice or wine, and avoids because of eat dishes without rice or wine congested the metadata cache of NodeB side being overflowed.Dependence RNC controls the flow of HSDPA data flow to avoid Iub mouth data congestion, with regard to requiring RNC to concentrate all data that send to NodeB is controlled.At present such centralized control entity is an option to RNC in agreement, therefore if the RNC side does not have so central controlled words, then can't make full use of the Iub bandwidth.
At present, when RNC not when sending to the centralized control entity of NodeB business datum, to the fixing Iub bandwidth of HSDPA traffic assignments, similar with dedicated channel, the Iub bandwidth of the Iub bandwidth of HSDPA channel and dedicated channel is separate like this.In this case, on the one hand, the last carrying of HSDPA be data service, the size of its packet and speed are constantly to change, and the real-time that logarithm reportedly send is less demanding, therefore there is no need to distribute fixing Iub bandwidth.On the other hand, the maximum rate of HSDPA data passes also can only be the size of distributing bandwidth, even current dedicated channel occupied bandwidth also can't improve the speed of HSDPA when very little.
Therefore, when the actual networking of WCDMA system, above-mentioned method to the professional fixed allocation Iub of HSDPA bandwidth is especially unfavorable under the common all very nervous situation of Iub bandwidth resources, can't realize making full use of of bandwidth.
Summary of the invention
In view of this, main purpose of the present invention is to provide the Iub interface flow control plan of a kind of WCDMA R5 and follow-up compatible version, makes the Iub interface bandwidth utilization be improved.
For achieving the above object, the invention provides a kind of Iub interface flow control plan, at least two kinds of channels of Iub interface carrying, wherein at least a channel services is in high-speed downlink packet access users, other channel is dedicated channel and common channel, and described method comprises following steps:
The distributed Iub bandwidth of A base station monitoring self current residual, and whether the distributed Iub bandwidth of judging current residual is less than first thresholding that presets, if, mutual by with affiliated radio network controller then, current all high-speed downlink packet access users in this base station are carried out assignment of traffic again, cause loss of data to avoid the Iub data traffic to exceed total bandwidth.
Wherein, also comprise following steps:
B judges the base station that whether the distributed Iub bandwidth of current residual is greater than second thresholding that presets, if, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station, thereby makes full use of the Iub bandwidth; Wherein,
Described second thresholding is greater than described first thresholding.
In addition, also comprise following steps:
The buffer memory capacity of described each high-speed downlink packet access users of base station monitoring of C, and judge that whether this buffer memory capacity is greater than the 3rd thresholding that presets, if then ask described radio network controller to stop to send this user's high speed descending grouping access data, avoid causing loss of data inadequately because of the base station buffer memory capacity.
In addition, also comprise following steps:
Whether D judges described base station this buffer memory capacity less than the 4th thresholding that presets, if then ask described radio network controller that this user is redistributed flow, wherein desired flow is consistent with the flow that this user eats dishes without rice or wine; Wherein,
Described the 4th thresholding is less than described the 3rd thresholding.
In addition, also comprise following steps:
Described base station judges whether this buffer memory capacity is 0, if then ask described radio network controller that this user is redistributed flow, and the flow that wherein desired flow is eated dishes without rice or wine greater than this user, thus make full use of the size of base station buffer memory capacity.
In addition, described steps A realizes by following substep:
The distributed Iub bandwidth of A1, described base station monitoring self current residual;
A2, be provided with first in the distributed Iub of current residual bandwidth during less than described first thresholding and be masked as effectively, and be provided with described first during greater than the first sluggish thresholding that presets in the distributed Iub of current residual bandwidth and be masked as invalidly, wherein the first sluggish thresholding is greater than first thresholding;
If the distributed Iub bandwidth of A3 current residual is invalid less than first thresholding that presets and described first sign, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station.
In addition, described step B realizes by following substep:
The distributed Iub bandwidth of B1, described base station monitoring self current residual;
B2, be provided with second in the distributed Iub of current residual bandwidth during greater than described second thresholding and be masked as effectively, and be provided with described second during less than the second sluggish thresholding that presets in the distributed Iub of current residual bandwidth and be masked as invalidly, wherein the second sluggish thresholding is less than second thresholding;
If the distributed Iub bandwidth of B3 current residual is invalid greater than second thresholding that presets and described second sign, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station.
In addition, described step C realizes by following substep:
The buffer memory capacity of C1, described each high-speed downlink packet access users of base station monitoring;
C2, be provided with the 3rd in described buffer memory capacity during greater than the 3rd thresholding that presets and be masked as effectively, be provided with the described the 3rd during less than the 3rd sluggish thresholding that presets in described buffer memory capacity and be masked as invalidly, the wherein said the 3rd sluggish thresholding is less than described the 3rd thresholding;
If this buffer memory capacity of C3 is effective greater than the 3rd thresholding that presets and described the 3rd sign, then ask described radio network controller to stop to send this user's high speed descending grouping access data.
In addition, described step D realizes by following substep:
The buffer memory capacity of D1, described each high-speed downlink packet access users of base station monitoring;
D2, be provided with the 4th in described buffer memory capacity during less than the 4th thresholding that presets and be masked as effectively, be provided with the described the 4th during greater than the 4th sluggish thresholding that presets in described buffer memory capacity and be masked as invalidly, the wherein said the 4th sluggish thresholding is greater than described the 4th thresholding;
If this buffer memory capacity of D3 is effective less than the 4th thresholding that presets and described the 4th sign, then ask described radio network controller that this user is redistributed flow, wherein desired flow is consistent with the flow that this user eats dishes without rice or wine.
In addition, described base station is the high-speed downlink packet access users dispense flow rate by sending the volume controlled frame to radio network controller.On original each basic thresholding basis, increase sluggish thresholding simultaneously, avoid frequently triggering the process of assignment of traffic.
By relatively can finding, the main distinction of technical scheme of the present invention and prior art is, at first, when the distributed Iub of current residual bandwidth surpasses Lower Threshold to NodeB in all HSDPA users carry out assignment of traffic again; Secondly, when surpassing Upper threshold, HSDPA user cache capacity require RNC to stop to send; When the user cache capacity is lower than Lower Threshold, require RNC to distribute and the consistent flow of eating dishes without rice or wine; When the user cache capacity is zero, require RNC to distribute greater than the flow of eating dishes without rice or wine; In addition, also defined stagnant regions for various thresholdings.
Difference on this technical scheme has brought comparatively significantly beneficial effect, promptly by the HSDPA data passes flow on base station end control Iub mouth, makes the utilance of Iub port band width greatly improve.By flow control to HSDPA user, make the base station can be in time according to current I ub allocated bandwidth situation and HSDPA user the metadata cache situation in the base station carry out the speed adjustment, avoid loss of data.When HSDPA user cache capacity is 0, the HSDPA data of the Iub mouth of its distribution are sent big flow, can reduce the situation that this user's free of data can send in the MAC-hs scheduling process, reduce the time-delay that data send to terminal.Because the present invention has considered the bulk flow situation of Iub mouth and the situation of each HSDPA user cache simultaneously, so can guarantee rational flow simultaneously from macroscopic view (Iub mouth) and two aspects of microcosmic (each user).By definition, can prevent that Flow Control from taking place too continually to stagnant regions.
Description of drawings
Fig. 1 is used to control the capacity request procedure schematic diagram that the HSDPA data send on Iub between RNC and NodeB in the WCDMA agreement;
Fig. 2 is used to control the capacity allocation process schematic diagram that the HSDPA data send on Iub between RNC and NodeB in the WCDMA agreement;
Fig. 3 is an Iub transmission channel control frame general format schematic diagram;
Fig. 4 is a requests for capacity control frame support structures schematic diagram;
Fig. 5 is a CAPACITY ALLOCATION control frame support structures;
Fig. 6 is a remaining bandwidth volume change area schematic;
Fig. 7 is a user data cache volume change area schematic;
The schematic diagram of first pass in Fig. 8 Iub interface flow control plan according to an embodiment of the invention;
Fig. 9 is the schematic diagram of second flow process in the Iub interface flow control plan according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
In the Iub interface flow control plan according to an embodiment of the invention, comprise first, second two flow processs.
First pass at first is described, as shown in Figure 8, this flow process comprises following steps:
In step 810, the distributed Iub bandwidth of base station monitoring self current residual.Because the foundation of the Iub bandwidth between RNC and the NodeB and the transmission bearer of each dedicated channel and common signal channel is reciprocity, so NodeB can utilize these information.Flow control process among the NodeB can be monitored the transmitted traffic of the Iub mouth data of all the HSDPA users in the NodeB according to the Iub total bandwidth of NodeB and the information of carrying the bandwidth of each dedicated channel and common signal channel, and detailed process is as follows.
In step 820, A judges the base station that whether the distributed Iub bandwidth of current residual is less than first thresholding (BwDownThrshld) that presets.If, then enter step 840, otherwise, step 830 entered.
In step 830, the distributed Iub bandwidth of current residual is judged greater than second thresholding (BwUpThrshld) that presets in the base station whether, and wherein, second thresholding is greater than first thresholding.If enter step 840; Otherwise, directly return step 810, continue the distributed Iub bandwidth of monitoring self current residual.
In step 840, mutual by with affiliated radio network controller, the base station is by sending the volume controlled frame to radio network controller, for high-speed downlink packet access users is redistributed flow, to be under the situation less than first thresholding that presets in the distributed Iub of current residual bandwidth, the bandwidth that the transmission of assurance HSDPA data is shared and the bandwidth sum of other dedicated channels and common signal channel do not exceed the size of Iub total bandwidth.And under the situation of the distributed Iub of current residual bandwidth, utilize the Iub bandwidth of current free time more fully greater than second thresholding that presets.After this, return step 810, continue the distributed Iub bandwidth of monitoring self current residual.
In the present embodiment, in first flow process, the transmitted traffic of the Iub mouth data of all the HSDPA users in the NodeB is controlled according to the Iub total bandwidth of NodeB and the information of carrying the bandwidth of each dedicated channel and common signal channel.In second flow process, each HSDPA user has a block cache in NodeB below, the HSDPA data that storage RNC sends.The data that flow control entity in the NodeB is eated dishes without rice or wine according to each HSDPA user send situation and the metadata cache situation in NodeB is carried out flow control, and detailed process is referring to Fig. 9.
At first, in step 910, the buffer memory capacity of each high-speed downlink packet access users of base station monitoring.
Then, in step 920, the base station judges whether this buffer memory capacity has surpassed the 3rd thresholding that presets, if, then enter step 930: request wireless network controller stops to send this user's high speed descending grouping access data, and return step 910, the buffer memory capacity of each high-speed downlink packet access users of monitoring is continued in the base station; If not, then enter step 940.
In step 940, the base station judges whether this buffer memory capacity is lower than the 4th thresholding that presets, if, then enter step 950: the base station is by sending the volume controlled frame to radio network controller, for high-speed downlink packet access users is redistributed flow, wherein desired flow is consistent with the flow that this user eats dishes without rice or wine.It is pointed out that the 4th thresholding is less than the 3rd thresholding.After this, return step 910, the buffer memory capacity of each high-speed downlink packet access users of monitoring is continued in the base station.On the other hand, if judge in this step that buffer memory capacity is not less than the 4th thresholding that presets, and then enters step 960.
In step 960, the base station judges whether this buffer memory capacity is 0, if, then entering step 970, the base station is that high-speed downlink packet access users is redistributed flow by sending the volume controlled frame to radio network controller.The flow that wherein desired flow is eated dishes without rice or wine greater than this user, and return step 910, the buffer memory capacity of each high-speed downlink packet access users of monitoring is continued in the base station.Otherwise, directly return step 910, the buffer memory capacity of each high-speed downlink packet access users of monitoring is continued in the base station.Wherein, in the present embodiment, desired flow can be the twice of flow of eating dishes without rice or wine.In this step, when the user cache capacity is 0, the HSDPA data transmitted traffic of the Iub mouth of its distribution is doubled.The effect of this step is to reduce the situation that this user's free of data can send in the MAC-hs scheduling process under whether buffer memory capacity is 0 situation, reduces the time-delay that data send to terminal.
It is worthy of note,, can add the thresholding of a sluggishness above-mentioned judgement for fear of frequent trigger event, could trigger event when promptly trigger process need change to thresholding below sluggish thresholding, if do not trigger when in sluggish thresholding, changing to thresholding.For example, as shown in Figure 6 and Figure 7, the triggering of incident C must be that the metadata cache capacity just satisfies trigger condition from regional 3-＞regional 2-＞zone 1, from regional 1-＞regional 2-＞regional 1 situation trigger event C not.This purpose can realize in the following manner:
The base station is provided with first during less than first thresholding in the distributed Iub of current residual bandwidth and is masked as effectively, and the distributed Iub of current residual bandwidth be provided with during greater than the first sluggish thresholding that presets first be masked as invalid; Then, whether the distributed Iub bandwidth of judging current residual is invalid less than first thresholding that presets and first sign, if then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station.
The present invention controls the transmission of the HSDPA data on the Iub in the NodeB side by the capacity allocation control frame, to reach the purpose that makes full use of the Iub bandwidth.Even the entity that the RNC side has the centralized control business datum to send if the NodeB side also adopts flow control methods of the present invention, just can reach better control HSDPA service traffics, thereby the utilization that further improves the Iub bandwidth.
This shows that in the present invention, the HSDPA data passes flow by on base station end control Iub mouth makes the utilance of Iub port band width greatly improve.And, when HSDPA user cache capacity surpasses Upper threshold, require RNC to stop to send; When the user cache capacity is lower than Lower Threshold, require RNC to distribute and the consistent flow of eating dishes without rice or wine; When the user cache capacity is zero, require RNC to distribute greater than the flow of eating dishes without rice or wine, make the base station can be in time according to current I ub allocated bandwidth situation and HSDPA user the metadata cache situation in the base station carry out the speed adjustment, avoid loss of data.In addition, prevent that by definition Flow Control from taking place too continually to stagnant regions.
Though by with reference to some preferred embodiment of the present invention, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (9)
1. an Iub interface flow control methods is characterized in that, at least two kinds of channels of Iub interface carrying, and wherein at least a channel services is in high-speed downlink packet access users, and other channel is dedicated channel and common channel, comprises following steps:
The distributed Iub bandwidth of A base station monitoring self current residual, and whether the distributed Iub bandwidth of judging current residual is less than first thresholding that presets, if, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station;
Whether B judges described base station the distributed Iub bandwidth of current residual greater than second thresholding that presets, if then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station; Wherein, described second thresholding is greater than described first thresholding.
2. Iub interface flow control methods according to claim 1 is characterized in that, also comprises following steps:
The buffer memory capacity of described each high-speed downlink packet access users of base station monitoring of C, and whether judge this buffer memory capacity greater than the 3rd thresholding that presets, if then ask described radio network controller to stop to send this user's high speed descending grouping access data.
3. Iub interface flow control methods according to claim 2 is characterized in that, also comprises following steps:
Whether D judges described base station this buffer memory capacity less than the 4th thresholding that presets, if then ask described radio network controller that this user is redistributed flow, wherein desired flow is consistent with the flow that this user eats dishes without rice or wine; Wherein, described the 4th thresholding is less than described the 3rd thresholding.
4. Iub interface flow control methods according to claim 3 is characterized in that, also comprises following steps:
Described base station judges whether this buffer memory capacity is 0, if then ask described radio network controller that this user is redistributed flow, and the flow that wherein desired flow is eated dishes without rice or wine greater than this user.
5. Iub interface flow control methods according to claim 1 is characterized in that, described steps A realizes by following substep:
The distributed Iub bandwidth of A1, described base station monitoring self current residual;
A2, be provided with first in the distributed Iub of current residual bandwidth during less than described first thresholding and be masked as effectively, and be provided with described first during greater than the first sluggish thresholding that presets in the distributed Iub of current residual bandwidth and be masked as invalidly, wherein the first sluggish thresholding is greater than first thresholding;
If the distributed Iub bandwidth of A3 current residual is invalid less than first thresholding that presets and described first sign, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station.
6. Iub interface flow control methods according to claim 1 is characterized in that, described step B realizes by following substep:
The distributed Iub bandwidth of B1, described base station monitoring self current residual;
B2, be provided with second in the distributed Iub of current residual bandwidth during greater than described second thresholding and be masked as effectively, and be provided with described second during less than the second sluggish thresholding that presets in the distributed Iub of current residual bandwidth and be masked as invalidly, wherein the second sluggish thresholding is less than second thresholding;
If B3 judges that the distributed Iub bandwidth of current residual is invalid greater than second thresholding that presets and described second sign, then mutual by with affiliated radio network controller carries out assignment of traffic again to current all high-speed downlink packet access users in this base station.
7. Iub interface flow control methods according to claim 2 is characterized in that, described step C realizes by following substep:
The buffer memory capacity of C1, described each high-speed downlink packet access users of base station monitoring;
C2, be provided with the 3rd in described buffer memory capacity during greater than the 3rd thresholding that presets and be masked as effectively, be provided with the described the 3rd during less than the 3rd sluggish thresholding that presets in described buffer memory capacity and be masked as invalidly, the wherein said the 3rd sluggish thresholding is less than described the 3rd thresholding;
If this buffer memory capacity of C3 is effective greater than the 3rd thresholding that presets and described the 3rd sign, then ask described radio network controller to stop to send this user's high speed descending grouping access data.
8. Iub interface flow control methods according to claim 3 is characterized in that, described step D realizes by following substep:
The buffer memory capacity of D1, described each high-speed downlink packet access users of base station monitoring;
D2, be provided with the 4th in described buffer memory capacity during less than the 4th thresholding that presets and be masked as effectively, be provided with the described the 4th during greater than the 4th sluggish thresholding that presets in described buffer memory capacity and be masked as invalidly, the wherein said the 4th sluggish thresholding is greater than described the 4th thresholding;
If this buffer memory capacity of D3 is effective less than the 4th thresholding that presets and described the 4th sign, then ask described radio network controller that this user is redistributed flow, wherein desired flow is consistent with the flow that this user eats dishes without rice or wine.
9. according to each described Iub interface flow control methods in the claim 1 to 8, it is characterized in that described base station is that high-speed downlink packet access users is redistributed flow by sending the volume controlled frame to radio network controller.
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| US8743794B2 (en) | 2007-02-05 | 2014-06-03 | Zte Corporation | Method of flow control between radio network controller and base station |
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| CN1859152A (en) | 2006-11-08 |
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