CN101459588B - Method, apparatus and system for flow control - Google Patents
Method, apparatus and system for flow control Download PDFInfo
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Abstract
The invention discloses a method for controlling flow capacity, which comprises the following steps: sending out current state information of a first network entity sending window to a second network entity by a first network entity, receiving the sending bandwidth information distributed for the first network entity, wherein the sending bandwidth is distributed by the second network entity according to the current state information and redistributed bandwidth of the first network entity sending window, and sending data by the first network entity according to the bandwidth information. The invention further discloses a method for controlling flow capacity in the second network entity. And meanwhile, the invention further discloses a device and a system corresponding with the method to solve the problems that system resources are wasted to be distributed caused by the prior art which only distributes and sends out bandwidths according to buffer size of a buffer window of a user team in a network entity which transmits data.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of method, Apparatus and system that carries out flow control.
Background technology
High speed downlink packet inserts that (High Speed Downlink Packet Access is that of introducing of 3GPPR5 release protocol has breakthrough technology HSDPA).High speed media access control (Medium Access Control-High Speed by (NodeB) side introducing in the base station, MAC-hs) entity, and employ new technology and improve descending hardware circuit solution, power system capacity and system spectral efficiency, satisfy user's high-quality service demand simultaneously, realized packet sharing on channel code and transmitting power.
The new technology that HSDPA introduces mainly comprises:
1) Adaptive Modulation and Coding (AMC)
The basic principle of AMC method is to adjust coding and modulation scheme adaptively according to the channel quality measurements of down channel, the feasible data rate maximization that transmits.
2) mix re-transmission (HARQ) automatically
HSDPA has increased mixing in the NodeB side and has retransmitted (Hybrid Automatic Repeat Request automatically, H-ARQ) function, this technological synthesis forward error correction (Forward Error Correction, FEC) and retransmit the characteristics of dual mode, in order to improve transmission rate and to reduce time delay.
3) shared channel shares
Because the CDMA spreading code, the opposite sex of poor quality of the different down links constantly of different user or same user is very big.HSDPA has introduced a high speed descending sharing channel, and (High Speed-DownlinkShare Channel, HS-DSCH), all users divide by sign indicating number or time division way is realized the shared of this channel taken.
4) fast dispatch of MAC-hs entity and flow control function
For the packet shared resource provides possibility, the MAC-hs dispatching algorithm is distributed suitable channel code and power resource for each HSDPA user to HSDPA on channel architecture.
In above-mentioned technology, the scheduling of MAC-hs and flow control are cores wherein.Fig. 1 is a HS-DSCH protocol architecture schematic diagram.As shown in Figure 1, the MAC-hs flow control is by regulating the flow between MAC-hs entity and the MAC-d flow, and itself and air interface capability on the air interface Uu are complementary, and avoided congested and data-bag lost re-transmission situation occurs on the Iub mouth.Therefore, the quality of the flow control strategy of MAC-hs greatly influences the height of HSDPA service feature.
In the prior art, the flow control function of MAC-hs is that (Radio Network Controller cooperates between RNC) and to finish by NodeB and radio network controller.In RNC side rlc layer metadata cache outgoing data is arranged, then RNC at first sends the requests for capacity control frame to NodeB, wishes to wait that the data volume of sending out can send as early as possible.And after NodeB receives the requests for capacity control frame, then carry out the calculating of following three steps:
1) formation bandwidth preassignment: allocate the Iub bandwidth in advance for each formation according to established principle.Such as factors such as the grades of can opening an account according to type of service (stream business, speech business etc.), the professional user UE of application of each Subscriber Queue is each Subscriber Queue preassignment Iub bandwidth.
2) Iub traffic-shaped: above-mentioned formation bandwidth preassignment has just been considered each attribute of type of service merely, and does not consider the available Iub bandwidth on NodeB and the RNC Iub interface.Therefore the Iub traffic-shaped is exactly that each Subscriber Queue preassignment bandwidth sum is controlled within the available HSDPA Iub bandwidth, can carry out bandwidth reduction in case of necessity and handle.
3) the capacity allocation control frame sends: behind the Iub traffic-shaped, determined the Iub allocated bandwidth result of individual queue, be quantified as in the capacity allocation control frame each parametric form then and carry out the transmission of control frame at the Iub mouth.
The current flux allocation strategy can be divided into dual mode: carry out traffic-shaped and carry out the flow control back-pressure in the RNC side in the NodeB side.But in concrete commercial operation, RNC and the direct-connected mode of NodeB can not appear in actual conditions, therefore in the middle of complicated networking mode determined that also doing flow control in the NodeB side handles and still be necessary.Generally speaking, in the flow control strategy, NodeB is that user cache size (the USER BUFFER SIZE) information of carrying in the high speed descending sharing channel Frame (HS-DSCH FP) that utilizes RNC to send is obtained the size of rlc layer data volume to be sent, as the preallocated foundation of bandwidth, thereby limit the value of preassignment bandwidth to a certain extent.But the inventor finds from the implementation process to this technical scheme, quality of uplink signal is very poor when occurring, under the situation of the affirmation state packet loss of rlc layer, tend to occur the full phenomenon of rlc layer send window, but this moment RNC HS-DSCH FP frame in " the USER BUFFER SIZE " information of carrying can only inform that the current RNC side of NodeB rlc layer waits the size of data of sending out, and can not reflect the state that sends window at this moment, therefore judge that according to this information the data mode of rlc layer will cause the wasting phenomenon of Iub allocated bandwidth in this case.
Summary of the invention
In view of this, the main purpose of the embodiment of the invention is to provide a kind of methods, devices and systems that carry out flow control, solves the waste problem of the system resource allocation of prior art existence.
In order to achieve the above object, embodiments of the invention have proposed a kind of method of carrying out flow control, the transfer of data that is used for network comprises first network entity and second network entity that is used to receive data that is used to send data in this network, this method may further comprise the steps:
First network entity sends first network entity to second network entity and sends the window current state information;
Be received as the transmission bandwidth information of its distribution, this transmission bandwidth is distributed according to sending window current state information and preassignment bandwidth by second network entity, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity;
First network entity sends data according to sending bandwidth information.
Embodiments of the invention have also proposed a kind of method of carrying out flow control, the transfer of data that is used for network, comprise first network entity and second network entity that is used to receive data that is used to send data in this network, this method may further comprise the steps:
First network entity that second network entity receives from first network entity sends the window current state information;
State information and the preassignment bandwidth current according to first network entity transmission window are that first network entity distributes the transmission bandwidth, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity; Send this transmission bandwidth information to first network entity.
Embodiments of the invention have proposed a kind of network entity that sends data, and this network entity comprises with lower unit:
The state information processing unit is used for sending the window current state information to the network entity of the network entity that receives data transmission data;
The bandwidth information receiving element, be used to be received as the transmission bandwidth information of the network entity distribution that sends data, this transmission bandwidth is distributed according to sending window current state information and preassignment bandwidth by the network entity that receives data, wherein, distribute described transmission bandwidth to comprise: to send Subscriber Queue distribution state correlation bandwidth in the network entity that the window current state information is described transmission data according to the network entity of described transmission data; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue is selected the transmission bandwidth of smaller as Subscriber Queue described in the network entity of distributing to described transmission data;
Data transmission unit is used for carrying out data according to the transmission bandwidth information that the bandwidth information receiving element receives and sends.
Embodiments of the invention have also proposed a kind of network entity that receives data, and this network entity comprises with lower unit:
The state information receiving element is used to receive the network entity that sends data and sends the window current state information;
The allocated bandwidth unit, be used for sending bandwidth for the network entity that sends data distributes according to the network entity transmission window that sends data current state information and preassignment bandwidth, wherein, distribute described transmission bandwidth to comprise: to send Subscriber Queue distribution state correlation bandwidth in the network entity that the window current state information is described transmission data according to the network entity of described transmission data; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue is selected the transmission bandwidth of smaller as Subscriber Queue described in the network entity of distributing to described transmission data;
The bandwidth transmitting element is used for sending the transmission bandwidth information that described allocated bandwidth unit distributes to the network entity of described transmission data.
A kind of system that carries out flow control of embodiments of the invention, this system comprises first network entity and second network entity: wherein,
First network entity is used to send it and sends window current state information to the second network entity, and is the transmission bandwidth transmission data of its distribution according to second network entity;
Second network entity, being used for sending the current state information of window according to first network entity is that first network entity distributes the transmission bandwidth, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity.
As can be seen from the above technical solutions, the transmission window state information of the network entity of embodiments of the invention by will sending data sends to the network entity that receives data, the network entity that receives data can be understood the state of the transmission window of the network entity that sends data in view of the above, and and then can adjust the bandwidth that the network entity that sends data sends user data.Only distribute the transmission bandwidth to compare with the network entity that receives data in the prior art according to the transmission window cache size of Subscriber Queue in the network entity that sends data, the technical scheme that the embodiment of the invention provided makes that certain Subscriber Queue sends under the full situation of window in the network entity that sends data, can carry out transfer of data with more rational bandwidth at next one emission this Subscriber Queue of cycle, avoid causing resource waste.
Description of drawings
Fig. 1 is a HS-DSCH protocol architecture schematic diagram in the prior art.
Fig. 2 is the flow chart of the first network implementation side implementation method in the embodiment of the invention.
Fig. 3 is the flow chart of the second network implementation side implementation method in the embodiment of the invention.
Fig. 4 sends the network entity of data and the structural representation of the network entity that receives data in the embodiment of the invention.
Carry out the flow chart of flow control in Fig. 5 embodiment of the invention.
Fig. 6 is a capacity allocation control frame structural representation in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Therefore, embodiments of the invention have proposed a kind of method of carrying out flow control, are used for the transfer of data of network, comprise first network entity and second network entity that is used to receive data that is used to send data in this network.Fig. 2 is the flow chart of this method.As shown in Figure 2, this method has comprised following steps:
In step 201, first network entity sends first network entity to second network entity and sends the window current state information.
In step 202, be received as the transmission bandwidth information of its distribution, this transmission bandwidth is distributed according to sending window current state information and preassignment bandwidth by second network entity.
In step 203, first network entity sends data according to sending bandwidth information.
Embodiments of the invention have also proposed a kind of method of carrying out flow control, are used for the transfer of data of network, comprise first network entity and second network entity that is used to receive data that is used to send data in this network.Fig. 3 is the flow chart of this method.As shown in Figure 3, this method may further comprise the steps:
In step 301, second network entity receives first network entity and sends the window current state information.
In step 302, state information and the preassignment bandwidth current according to first network entity transmission window are that first network entity distributes the transmission bandwidth.
In step 303, second network entity sends this transmission bandwidth information to first network entity.
Embodiments of the invention have proposed a kind of network entity that sends data, Fig. 4 is this network entity and the structural representation that receives the network entity of data, as shown in Figure 4, the network entity of these transmission data comprises state information transmitting element 410, bandwidth receiving element 420 and data transmission unit 430.
Wherein, the state information processing unit is used for sending to the network entity that receives data the network entity transmission window current state information of data.The bandwidth information receiving element is used to be received as the transmission bandwidth information of the network entity distribution that sends data, and this transmission bandwidth is distributed according to sending window current state information and preassignment bandwidth by the network entity that receives data.Data transmission unit is used for carrying out data according to the transmission bandwidth information that the bandwidth receiving element receives and sends.
Further, the state information processing unit comprises with lower module: state information is provided with module 411 and is used for sending buffer memory when full when detecting, and is provided with that to send the window current state information full for sending window; When detect send data volume in the buffer memory be lower than predetermined value for example total capacity 10% the time, being provided with and sending the window current state information is data deficiencies; When detect send data volume in the buffer memory be higher than total capacity 10% and send buffer memory less than the time, be provided with and send the window current state information for normal.State information sending module 412 is used for that state information is provided with the transmission window current state information that module 411 is provided with and is sent to the network entity that receives data.
Embodiments of the invention have also proposed a kind of reception data network entity, and as shown in Figure 4, this network entity comprises state information receiving element 440, allocated bandwidth unit 450 and bandwidth transmitting element 460.
Wherein state information receiving element 440 is used to receive the network entity transmission window current state information that sends data.Allocated bandwidth unit 450 is used for the transmission window current state information that receives according to state information receiving element 440 and sends bandwidth for the network entity of these transmission data distributes; Bandwidth transmitting element 460 is used for sending the transmission bandwidth information that described allocated bandwidth unit 450 distributes to the network entity of described transmission data.
Further, the allocated bandwidth unit comprises following module: state correlation bandwidth distribution module 452 is used for the state information that analysis state information receiving unit 440 receives, and distribution state correlation bandwidth, when detecting state information for sending window when full, distribution state correlation bandwidth is to send protocol Data Unit according to first transmission rate, for example per 80 milliseconds send a protocol Data Unit, when detecting state information is data deficiencies or just often, distribute described state correlation bandwidth for sending protocol Data Unit according to second transmission rate, for example distribution state correlation bandwidth is 50 milliseconds of transmission one secondary data, and sends all data in the Subscriber Queue at every turn.Send bandwidth allocation module 453 and be used for state correlation bandwidth and preassignment bandwidth that state correlation bandwidth distribution module 452 is distributed are compared, select conduct less among both to distribute to the transmission bandwidth of the network entity that sends data.Traffic-shaped module 454 is used for the transmission bandwidth that sends bandwidth allocation module 453 distribution is carried out traffic-shaped.
Embodiments of the invention also provide a kind of system that carries out flow control.This system comprises first network entity and second network entity.First network entity is used to send it and sends window current state information to the second network entity, and is the transmission bandwidth transmission data of its distribution according to second network entity.Second network entity is used for sending the current state information of window according to first network entity and distributes the transmission bandwidth.
When the technical scheme that provides when the embodiment of the invention is applied to different communication systems, above the concrete title of said first network entity and second network entity also have different, as at WCDMA mobile communication system (Wideband Code Division Multiple Access, WCDMA) in, first network entity can be RNC, second network entity can be NodeB, and at global system for mobile communications (Global System for Mobile Communication, GSM) in, first network entity can be base station controller (Base Station Controller, BSC), second network entity can be the base station (BaseStation, BS).To be example with RNC and NodeB below, with specific embodiment the solution of the present invention be carried out detailed elaboration in conjunction with the accompanying drawings.
Fig. 5 is for being the flow chart that example is carried out flow control with RNC and NodeB in the embodiment of the invention.As shown in Figure 5, this method may further comprise the steps:
In step 501, RNC sends the state information that current RNC side rlc layer sends window by fill message in " spare extension (the Spare Extension) " of HS-DSCH FP frame field.
RNC sends by detecting the state that current rlc layer sends data in the buffer memory, generate to send in the Spare Extension field that the window state information is carried at HS-DSCH FP frame.It is full that RNC detects the transmission buffer memory, and the state information that current transmission then is set is " sending window full (Full of Dl Sending Windows) "; When detect send data volume in the buffer memory be lower than predetermined value for example total capacity 10%, the state information that current transmission then is set is " data deficiencies (No Enough of Data) "; When detect send data volume in the buffer memory be higher than total capacity 10% and send buffer memory less than the time, current transmission information is set is " normal (Normal) ".
In step 502, NodeB receives HS-DSCH FP frame post analysis Spare Extension field wherein, and the transmission window state information and the preassignment bandwidth of carrying according to this field are that Subscriber Queue distributes an Iub port band width value.
According to sending window state information difference, can discuss in the following several ways:
1) receives " Full of Dl Sending Windows " information that HS-DSCH FP frame carries as NodeB, the state correlation bandwidth of distributing can be set to RlcStatusBw1=1 MAC-d PDUSize (bit)/80ms, show and sending under the full situation of window, NodeB requires RNC to send MAC-d PDU according to first transmission rate, just require RNC just to send a MAC-dPDU every very first time section, for example can require the every 80ms of RNC to send a MAC-d PDU, so that can in time give the user with data forwarding to NodeB.Wherein the concrete numerical value of MAC-d PDU Size (bit) can be extracted in the Mac-d PDU Length of the HS-DSCH FP frame that receives field by NodeB.Here according to the general processing mode in this area, be expressed as the transmission bandwidth of its distribution with the transmission rate of Subscriber Queue.
The Iub adjusted distribution bandwidth of mouth this moment (being designated as QuePreIubBwModify) is shown in formula (1-1):
Que?Pr?eIubBwModify＝Min(Que?Pr?eBw，RlcStatusBw1) (1-1)
Wherein, QuePreBw is the preassignment bandwidth that generates when carrying out the preassignment of formation bandwidth.The distribution bandwidth of this HSDPA Subscriber Queue is distributed in the smaller value conduct that NodeB chooses among RlcStatusBw1 and the QuePreBw, thereby makes RNC can send the state transmission data of window reality according to its rlc layer.
2) receive HS-DSCH FP frame " No Enough of Data " information in carrying as NodeB, the state correlation bandwidth of distributing can be set to RlcStatusBw2=RlcBuffersize (bit)/50ms, show that sending the window data volume in the RNC side is lower than the predetermined value for example 10% o'clock that sends buffer memory capacity, NodeB requires RNC to send MAC-d PDU according to second transmission rate, just require RNC just to send a MAC-d PDU every second time period, for example can require the every 50ms of RNC to send a secondary data, each will send all that the data of this Subscriber Queue send to NodeB in the window, so as NodeB in time with data forwarding to the user.Wherein the concrete numerical value of RlcBuffersize (bit) can be extracted in the USER BUFFER SIZE of the HS-DSCH FP frame that receives field by NodeB.Here according to the general processing mode in this area, be expressed as the transmission bandwidth of its distribution with the transmission rate of Subscriber Queue.
The Iub adjusted distribution bandwidth of mouth this moment (being designated as QuePreIubBwModify) is shown in formula (1-2):
Que?Pr?eIubBwModify＝Min(Que?Pr?eBw，RlcStatusBw2) (1-2)
Wherein, QuePreBw is the preassignment bandwidth that generates when carrying out the preassignment of formation bandwidth.The preassignment bandwidth of this HSDPA Subscriber Queue is distributed in the smaller value conduct that NodeB chooses among RlcStatusBw2 and the QuePreBw, thereby makes RNC can send the state transmission data of window reality according to its rlc layer.
3) receive HS-DSCH FP frame " Normal " information in carrying as NodeB, distribution state correlation bandwidth RlcStatusBw3=RlcBuffersize (bit)/50ms, show that sending the window data volume in the RNC side is lower than the predetermined value for example 10% and send buffer memory when discontented that sends buffer memory capacity, NodeB also can require RNC to send MAC-d PDU according to second transmission rate, just require RNC just to send a MAC-d PDU every second time period, for example can require the every 50ms of RNC to send a secondary data, each will send all that the data of this Subscriber Queue send to NodeB in the window, so that NodeB in time gives the user with data forwarding, NodeB also can require RNC to send MAC-d PDU with other suitable speed certainly.Wherein the concrete numerical value of RlcBuffersize (bit) can be extracted in the USERBUFFER SIZE field of the HS-DSCH FP frame that receives by NodeB.Equally, here according to the general processing mode in this area, be expressed as the transmission bandwidth of its distribution with the transmission rate of Subscriber Queue.
The Iub adjusted distribution bandwidth of mouth this moment (being designated as QuePreIubBwModify) is shown in formula (1-3):
QuePreIubBwModify＝Min(QuePreBw，RlcStatusBw3) (1-3)
QuePreBw is the preassignment bandwidth that generates when carrying out the preassignment of formation bandwidth.The preassignment bandwidth of this HSDPA Subscriber Queue is distributed in the smaller value conduct that NodeB chooses among RlcStatusBw3 and the QuePreBw, thereby makes RNC can send the state transmission data of window reality according to its rlc layer.
NodeB and RNC total available bandwidth on Iub interface is not considered in above-mentioned formation bandwidth preassignment.Therefore NodeB also can carry out the Iub traffic-shaped to above-mentioned preallocated formation bandwidth, is about to each Subscriber Queue preassignment bandwidth sum and is controlled within the available HSDPA Iub bandwidth, can carry out bandwidth reduction in case of necessity and handle.
In step 503, NodeB has incited somebody to action the transmission bandwidth information of carrying out the Subscriber Queue of Iub traffic-shaped and has sent to RNC.In an embodiment of the present invention, NodeB sends the transmission of bandwidth information at the Iub mouth with the form of parameter in the capacity allocation control frame.
Fig. 6 is a capacity allocation control frame structural representation.As shown in Figure 6, each key parameter is described as follows in the capacity allocation control frame:
(1) maximum MAC-d PDU length (Maximum MAC-d PDU Length) has indicated RNC by NodeB Application Part (NodeB Application Par, NBAP) maximum among Pei Zhi the various MAC-d PDU Size.
(2) HS-DSCH interval (HS-DSCH Interval) has indicated the capacity allocation control frame in the time interval that the RNC side can be used, and granularity is 10ms, has provided span [0-2550] ms in wireless communication protocol 3GPP TS 25.435-680.
(3) HS-DSCH available bandwidth (HS-DSCH Credits) number of having indicated the MAC-d PDU that the RNC side can send in a HS-DSCH Interval, shown in formula (1-4), wherein IubBw represents through giving the Iub bandwidth of this MAC-d flow flow distribution after the traffic-shaped.
In step 504, after the RNC side joint is received the capacity allocation control frame, by to the wherein deciphering of parameter, obtain employed Iub bandwidth information when next cycle sends some Subscriber Queue Frames, and carry out data according to this bandwidth information and send.
By above-mentioned step, RNC and NodeB unite the process that Iub mouth flow is controlled of having finished.
Because in the technical scheme that the embodiment of the invention provides, NodeB knows that not only RNC side rlc layer sends the data volume size in the window, also known the state that sends window by Spare Extension field, therefore send under the full situation of window at RNC side rlc layer, notice RNC is utilized the Iub bandwidth resources in the Iub bandwidth of the Subscriber Queue of next cycle adjustment transmission window correspondence more fully.
Through after the above-mentioned processing, the accuracy that the Iub port band width distributes will get a promotion, also will promote the performance of NodeB side MAC-hs flow control allocation strategy, and because use the reserved field of existing signaling to transmit the state information that RNC sends window, when realizing the more rational flow control of Iub mouth, do not increase system loading.
In another embodiment of the present invention, can transmit the state information that the RNC side sends window by defining new signaling, serve as according to carrying out the distribution of IuB port band width in the NodeB side with this state information.
Embodiments of the invention are to set forth technical scheme of the present invention with MAC-hs flow control among the HSDPA, but do not represent that the technical scheme that the embodiment of the invention provides only is suitable in the above-mentioned scene, persons skilled in the art are easy to release according to embodiments of the invention, and the technical scheme that the embodiment of the invention provides is applicable to the situation that any needs carry out flow control in the communication system.
Therefore, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. method of carrying out flow control is used for the transfer of data of network, comprises first network entity that sends data and second network entity that receives data in the described network, it is characterized in that this method comprises:
First network entity sends described first network entity to second network entity and sends the window current state information;
Receiving described second network entity is the transmission bandwidth information that described first network entity distributes, described transmission bandwidth sends the window current state information by described second network entity according to described first network entity and the preassignment bandwidth is distributed, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity;
First network entity sends data according to described transmission bandwidth information.
2. method according to claim 1 is characterized in that, further comprises:
The transmission buffer memory is full when detecting, and being provided with and sending the window current state information is to send window to expire;
Data volume is lower than predetermined value in detecting the transmission buffer memory, and being provided with and sending the window current state information is data deficiencies;
When detect send in the buffer memory data volume be higher than predetermined value and send buffer memory less than, be provided with and send the window current state information for normal.
3. method according to claim 1 is characterized in that, describedly sends described first network entity to second network entity and sends the window current state information and comprise:
Send described first network entity by the field in the high speed descending sharing channel Frame to second network entity and send the window current state information.
4. method of carrying out flow control is used for the transfer of data of network, comprises first network entity that sends data and second network entity that receives data in the described network, it is characterized in that this method comprises:
First network entity that second network entity receives from first network entity sends the window current state information;
According to described first network entity transmission window current state information and preassignment bandwidth is that described first network entity distributes the transmission bandwidth, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity;
Second network entity sends described transmission bandwidth information to first network entity.
5. method according to claim 4 is characterized in that, the method that described transmission window current state information according to first network entity is the Subscriber Queue distribution state correlation bandwidth in described first network entity further comprises:
If it is full that described transmission window current state information is data, distribute described state correlation bandwidth for sending protocol Data Unit according to first transmission rate;
If described transmission window current state information is a data deficiencies or normal, distribute described state correlation bandwidth for sending protocol Data Unit according to second transmission rate.
6. method according to claim 4 is characterized in that, further comprises:
Described Subscriber Queue is carried out the traffic-shaped operation, the transmission bandwidth sum of all Subscriber Queue in described first network entity is controlled within the available bandwidth of interface between described first network entity and second network entity.
7. a network entity that sends data is characterized in that, comprising:
The state information processing unit, the network entity that is used for sending to the network entity that receives data described transmission data sends the window current state information;
The bandwidth information receiving element, be used to be received as the transmission bandwidth information that the network entity of described transmission data distributes, described transmission bandwidth is distributed according to described transmission window current state information and preassignment bandwidth by the network entity of described reception data, wherein, distribute described transmission bandwidth to comprise: to send Subscriber Queue distribution state correlation bandwidth in the network entity that the window current state information is described transmission data according to the network entity of described transmission data; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue is selected the transmission bandwidth of smaller as Subscriber Queue described in the network entity of distributing to described transmission data;
Data transmission unit is used for carrying out data according to the described transmission bandwidth information that described bandwidth information receiving element receives and sends.
8. network entity according to claim 7 is characterized in that, the state information processing unit comprises:
State information is provided with module, be used for sending buffer memory when full when detecting, being provided with and sending the window current state information is to send window to expire, when data volume is lower than predetermined value in detecting the transmission buffer memory, being provided with and sending the window current state information is data deficiencies, when detect send in the buffer memory data volume be higher than predetermined value and send buffer memory less than the time, be provided with and send the window current state information for normal;
The state information sending module is used for sending the transmission window current state information that described state information is provided with the unit setting to the network entity of described reception data.
9. a network entity that receives data is characterized in that, comprising:
The state information receiver module is used to receive the network entity that sends data and sends the window current state information;
The allocated bandwidth unit, being used for sending network entity that the current state information of window and preassignment bandwidth be described transmission data according to the network entity of described transmission data distributes and sends bandwidth, wherein, distribute described transmission bandwidth to comprise: to send Subscriber Queue distribution state correlation bandwidth in the network entity that the window current state information is described transmission data according to the network entity of described transmission data; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue is selected the transmission bandwidth of smaller as Subscriber Queue described in the network entity of distributing to described transmission data;
The bandwidth transmitting element is used for sending the transmission bandwidth information that described allocated bandwidth unit distributes to the network entity of described transmission data.
10. network entity according to claim 9 is characterized in that, described allocated bandwidth unit comprises:
State correlation bandwidth distribution module, be used for when detecting described transmission window current state information for sending window when full, distribute described state correlation bandwidth for sending protocol Data Unit according to first transmission rate, and be data deficiencies or just often when detecting described transmission window current state information, distribute described state correlation bandwidth for sending protocol Data Unit according to second transmission rate;
Send bandwidth allocation module, be used for the state correlation bandwidth and the preassignment bandwidth of state correlation bandwidth module assigns are compared, select conduct less among both to distribute to the transmission bandwidth of the network entity that sends data;
The traffic-shaped module is used for the transmission bandwidth that sends the bandwidth allocation module distribution is carried out traffic-shaped.
11. a system that carries out flow control is characterized in that, comprises first network entity and second network entity: wherein,
Described first network entity is used to send it and sends the window current state information to described second network entity, and sends data according to the transmission bandwidth that described second network entity is its distribution;
Described second network entity, being used for according to described transmission window current state information is that described first network entity distributes the transmission bandwidth, wherein, distribute described transmission bandwidth to comprise: sending the window current state information according to described first network entity is Subscriber Queue distribution state correlation bandwidth in described first network entity; The preassignment bandwidth of more described state correlation bandwidth and described Subscriber Queue selects the smaller as the transmission bandwidth of distributing to Subscriber Queue described in described first network entity.
12. system according to claim 11 is characterized in that, described first network entity is a radio network controller, and described second network entity is the base station.
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| CN2007101953550A CN101459588B (en) | 2007-12-13 | 2007-12-13 | Method, apparatus and system for flow control |
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| CN2007101953550A CN101459588B (en) | 2007-12-13 | 2007-12-13 | Method, apparatus and system for flow control |
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| WO2011082534A1 (en) * | 2010-01-08 | 2011-07-14 | 华为技术有限公司 | Method and device for resource allocation |
| CN103686853B (en) * | 2012-09-13 | 2019-07-09 | 中兴通讯股份有限公司 | A kind of the flow control distribution method and device of HSDPA multi-stream technology |
| CN103686839A (en) * | 2012-09-20 | 2014-03-26 | 中兴通讯股份有限公司 | Transmission bandwidth reporting method, device and system |
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| CN1553606A (en) * | 2003-05-30 | 2004-12-08 | 中兴通讯股份有限公司 | Transmitting window adjusting method in wireless chain circuit control layer |
| CN1614944A (en) * | 2003-11-06 | 2005-05-11 | 北京邮电大学 | Dynamic distribution control of upward band width in passive optical network |
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| CN1553606A (en) * | 2003-05-30 | 2004-12-08 | 中兴通讯股份有限公司 | Transmitting window adjusting method in wireless chain circuit control layer |
| CN1614944A (en) * | 2003-11-06 | 2005-05-11 | 北京邮电大学 | Dynamic distribution control of upward band width in passive optical network |
| CN1756228A (en) * | 2004-09-29 | 2006-04-05 | 上海贝尔阿尔卡特股份有限公司 | User apparatus and method for carrying out resource scheduling in wireless network |
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