CN101516109B - Method, system and device for controlling flow - Google Patents
Method, system and device for controlling flow Download PDFInfo
- Publication number
- CN101516109B CN101516109B CN2008100579521A CN200810057952A CN101516109B CN 101516109 B CN101516109 B CN 101516109B CN 2008100579521 A CN2008100579521 A CN 2008100579521A CN 200810057952 A CN200810057952 A CN 200810057952A CN 101516109 B CN101516109 B CN 101516109B
- Authority
- CN
- China
- Prior art keywords
- user
- base station
- priority query
- rnc
- capacity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a method for controlling flow. The method comprises the following steps that: a high threshold and a low threshold of cached data quantity are set for a priority queue of users in a base station according to the maximum transmission rate of transmission services of user equipment connected to a current system; a radio network controller RNC sends a capacity request frame to the base station and informs the base station of the cached data quantity in the priority queue of the current users; when the cached data quantity in the priority queue of the current users is lower than the low threshold, the base station allocates Iub interface bandwidth to the current users and sends a capacity allocation frame to the RNC, and the RNC sends data to the base station according to the capacity allocation frame; and when the cached data quantity in the priority queue of the current users is higher than the high threshold, the base station sends a capacity prohibition frame to the RNC, and the RNC stops sending data to the base station when receiving the capacity prohibition frame.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of flow control methods, system and device.
Background technology
3GPP25.321 (Release5) agreement regulation, under the transmittability prerequisite of considering air interface, radio network controller (RNC, Radio Network Controller) and base station (NodeB) adopt the dynamically mode of control together, provide between Media Access Control MAC-c/sh entity and MAC-hs entity (having disposed the MAC-c/sh entity), perhaps the stream of the controlled data between MAC-d entity and the MAC-hs entity (not disposing the MAC-c/sh entity).This flow control function is for the time-delay of limiting layer two signalings and reduces congested the abandoning and the data retransmission amount of causing of high speed descending sharing channel (HS-DSCH, High Speed Downlink SharedChannel).
3GPP25.435 (Release5) agreement regulation, the HS-DSCH capacity request procedure provides the method for RNC to NodeB request HS-DSCH capacity, and this method indicates the user buffering district size of pre-setting priority among the RNC by the UserBufferSize field in the capacity request frame; Node B uses HS-DSCH capacity allocation frame to control user data traffic; In addition, the UserBufferSize field in the HS-DSCH Frame also can be given NodeB with the metadata cache advisory of RNC side in time.
In a word, the basic procedure and the principle of Iub interface (NodeB communicates by letter with RNC by Iub interface) flow control are: RNC passes through capacity request frame in time with the metadata cache advisory NodeB in active user's the respective priority formation, and NodeB is according to the actual transmissions ability of current air interface, send the capacity allocation frame to RNC, enough to guarantee to store in the NodeB side Subscriber Queue as far as possible, active data, wherein, enough connotations are meant the data in the Subscriber Queue to be wanted enough Uu interfaces (NodeB is by Uu interface and subscriber equipment (UE, User Equipment) transmission communication) is avoided occurring Subscriber Queue and transferred empty phenomenon when scheduling; Effectively connotation is meant that data in buffer has enough freshnesses in the NodeB side Subscriber Queue, avoids the RNC side is handed down to repetition in the data of NodeB business datum.Therefore, the strategy of NodeB side capacity allocation determines the quality of whole flow control performance.
In the prior art, NodeB comes to distribute the Iub interface bandwidth for user's priority query according to the transmitting capacity conversion Iub interface speed of Uu interface, and is specific as follows:
(1), at first sort, in order priority query is carried out allocated bandwidth then by whether the user inserts for the first time, the user inserts bandwidth to be allocated such as back principles such as time length priority query to all users.
(2), when user's initialization, be that benchmark distributes bandwidth with this user's maximum transmitting capacity.
When this user receives channel quality indication (CQI, Channel Quality Indicator) after the feedback, the product of the greatest physical resource MAX_VruNum that supports with CQI corresponding code rate (Rtbs/CQI_VruNum) and this user obtains this user's Iub interface bandwidth B, i.e. formula:
Rtbs in the above-mentioned formula 1 is sharing the receivable transmission block size of feeding back on the information indicating channel for the user; CQI_VruNum is the Rtbs corresponding physical resource of this shared information indicating channel indication.
(3), NodeB is when allocated bandwidth, the maximum rate that the shared physical resource of the bandwidth resources upper limit that Iub interface is total and Uu interface can carry is complementary, this Iub interface bandwidth is that all insert users and share and use, and must not exceed this bandwidth resources higher limit when distributing bandwidth for user's priority query.
For avoiding Iub interface to send HS-DSCH capacity allocation frame continually, cause increasing the processing load of NodeB and RNC and the data transmission delay of introducing Iub interface, and in order to utilize the limited shared bandwidth resource of Iub interface fully, efficiently, the NodeB side takes following method to reduce the frequency of allocated bandwidth:
(1), NodeB is the high and low thresholding of priority query's formulation buffer data size of user according to the maximum amount of data of the required transmission of UE ability level; When the buffer data size in the priority query is lower than low threshold, send the capacity allocation frame, when the metadata cache amount in the priority query is higher than high threshold, forbid frame so that RNC stops to send data to RNC transmission capacity to RNC.
(2), when NodeB receives the capacity request frame of RNC, when receiving that perhaps carrying its buffer memory in the HS-DSCH Frame is 0 state, NodeB forbids frame to RNC corresponding priority level formation transmission capacity, reclaims its bandwidth resources.
(3), the bandwidth allocation cycle of each user's priority query is fixed, be several wireless frame lengths, in case certain user's priority query is assigned with certain bandwidth, unless this queuing data buffer memory reaches high threshold or RNC side buffer data size is 0, otherwise this user can take the bandwidth of having distributed always during this period of time.
But, there are following three shortcomings in the above-mentioned existing flow control technique:
When (1), formulating the high threshold of priority query at present, reference be the maximum transmitting capacity of this priority query's respective user at the Uu interface, and what use when calculating the Iub interface bandwidth according to formula 1 is the greatest physical resource that this user can support, but the actual high-speed downlink packet that inserts the multi-user inserts (HSDPA, High Speed Downlink Packet Access) in the system, the user takies maximum physical resource at every turn in the time of might not being scheduled.
Therefore, the Iub interface bandwidth of distributing for this user's priority query may exceed the transmitting capacity of its Uu interface reality, causes accumulation a large number of services data in this user's the priority query.
(a), if current business configuration abandon timer DiscardTimer, then user data can abandon because DiscardTimer expires, and causes that Radio Link controls the data re-transmission between (RLC, Radio Link Control) contour level peer layer.
(b), if do not dispose DiscardTimer, then these data may be deposited in the NodeB side for a long time, can not in time arrive UE, therefore UE also fails in time to cause the transmission window of RNC side RLC entity transmitting terminal full to the RNC condition report feedback.
(c), if the RLC physical arrangements timer Timer_Discard that abandons based on Service Data Unit (SDU), the NodeB side is long to rlc protocol data cell (PDU) (being included in the MAC PDU) cache-time so, in case transmission time and the Timer_Discard of RLC PDU are suitable, abandoning of RLC SDU must be caused, the more re-transmission of higher protocol layer may be caused.
This non-meaningless high level that brings because of the air interlace channel low environmental quality retransmits, and causes wasting a large amount of air interface resource, also wastes limited Iub interface band width in physical resource simultaneously; And the shake of the service surface that this packet loss brings directly has influence on data cached validity in the real-time of data and the formation of NodeB side User Priority.
(2), in reality system, can produce shake inevitably when RNC issues data to NodeB, the size of degree of jitter depends on the rate-matched performance between the different agreement layer.May occur RNC like this is 0 at some radio frames notice NodeB in the metadata cache amount of RNC side priority query, and an ensuing radio frames to notify the metadata cache amount of this priority query of NodeB be not 0.
Because NodeB transmission capacity forbids that frame has real-time, sensitivity is very high; And when sending the capacity allocation frame and need work as total bandwidth residue is arranged, and send the two-way time delay that HS-DSCH data that the capacity allocation frame issues to the actual RNC of receiving need be passed through Iub interface.Real-time guarantee to business datum can bring influence in this case, may influence this user's goodput simultaneously.
(3), because the resource-sharing of Iub interface total bandwidth, and the total bandwidth resource is limited, and NodeB is that unit adopts the strategy of periodic allocation to carry out allocated bandwidth with the priority query, therefore, some priority query can not obtain enough Iub interface bandwidth resources, even some priority can not obtain allocated bandwidth in time, causes its data in the formation of NodeB side can not obtain supply in time, transferred empty situation in the time of can scheduling occurring, thereby influenced this user's goodput.
In sum, Iub interface flow control weak effect in the HSDPA system of prior art.
Summary of the invention
The embodiment of the invention provides a kind of flow control methods, system and device, in order to guarantee that the user is by enough, effective, the real-time data flow of Uu interface transmission in the HSDPA system.
A kind of flow control methods that the embodiment of the invention provides comprises:
In the base station,, the high threshold and the low threshold of buffer data size is set for user's priority query according to the peak transfer rate that inserts the user device transmissions business in the current system;
Radio network controller (RNC) sends capacity request frame to described base station, notifies described base station with the buffer data size in active user's the priority query;
When the buffer data size in described active user's the priority query is lower than described low threshold, described base station is that described active user distributes the Iub interface bandwidth, and send the capacity allocation frame to described RNC, described RNC sends data according to described capacity allocation frame to described base station;
When the buffer data size in described active user's the priority query was higher than described high threshold, frame was forbidden to described RNC transmission capacity in described base station, and described RNC receives described capacity when forbidding frame, stopped to send data to described base station.
A kind of flow control system that the embodiment of the invention provides comprises: radio network controller (RNC) and base station;
Described RNC is used for sending capacity request frame to described base station, notifies described base station with the buffer data size in active user's the priority query; And the capacity allocation frame according to described base station sends sends data to described base station; When the capacity that receives the transmission of described base station is forbidden frame, stop to send data to described base station;
Described base station is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query; And, when the buffer data size in described active user's the priority query is lower than described low threshold,, send the capacity allocation frame to described RNC for described active user distributes the Iub interface bandwidth; When the buffer data size in described active user's the priority query is higher than described high threshold, forbid frame to described RNC transmission capacity.
A kind of base station that the embodiment of the invention provides comprises:
The thresholding unit is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query;
The capacity allocation frame unit when being used for buffer data size in active user's priority query and being lower than described low threshold, for described active user distributes the Iub interface bandwidth, and sends the capacity allocation frame to radio network controller (RNC);
Capacity is forbidden frame unit, when being used for buffer data size in active user's priority query and being higher than described high threshold, forbids frame to RNC transmission capacity.
The embodiment of the invention according to the peak transfer rate that inserts the user device transmissions business in the current system, is provided with the high threshold and the low threshold of buffer data size for user's priority query in the base station; Radio network controller (RNC) sends capacity request frame to described base station, notifies described base station with the buffer data size in active user's the priority query; When the buffer data size in described active user's the priority query is lower than described low threshold, described base station is that described active user distributes the Iub interface bandwidth, and send the capacity allocation frame to described RNC, described RNC sends data according to described capacity allocation frame to described base station; When the buffer data size in described active user's the priority query was higher than described high threshold, frame was forbidden to described RNC transmission capacity in described base station, and described RNC receives described capacity when forbidding frame, stopped to send data to described base station.By this technical scheme, make in the HSDPA system, in the available physical bandwidth range of limited Iub interface, reasonably control the Iub interface data traffic, utilize the shared bandwidth resource of Iub interface fully, efficiently; Data in buffer possesses real-time, validity in assurance NodeB side user's the priority query; Metadata cache amount in assurance NodeB side user's the priority query satisfies the requirement of air interface data traffic volume.
Description of drawings
A kind of flow control methods schematic flow sheet that Fig. 1 provides for the embodiment of the invention;
The method flow schematic diagram of the secondary allocated bandwidth that Fig. 2 provides for the embodiment of the invention;
The structural representation of a kind of flow control system that Fig. 3 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of flow control methods, system and device, in order to guarantee in the HSDPA system by the flow control of Iub interface, makes the user pass through enough, effective, the real-time data flow of Uu interface transmission.
Introduce the technical scheme that the embodiment of the invention provides below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of flow control methods that the embodiment of the invention provides totally comprises step:
S101, in the base station according to the peak transfer rate that inserts the user device transmissions business in the current system, the high threshold and the low threshold of buffer data size is set for user's priority query.
S102, radio network controller (RNC) send capacity request frame to described base station, notify described base station with the buffer data size in active user's the priority query.
S103, when the buffer data size in described active user's the priority query is lower than described low threshold, described base station is that described active user distributes the Iub interface bandwidth, and send the capacity allocation frame to described RNC, described RNC sends data according to described capacity allocation frame to described base station.
S104, when the buffer data size in described active user's the priority query is higher than described high threshold, frame is forbidden to described RNC transmission capacity in described base station, described RNC receives described capacity when forbidding frame, stops to send data to described base station.
Below the embodiment of the invention is described in detail.
(1) determines the high threshold of buffer data size of user's priority query according to the real-time parameter of business.
In order to ensure real time of data transmission, improve the efficient of transfer of data, reduce and even avoid re-transmission between the unnecessary RLC peer layer, NodeB determines the high threshold TH1 that its formation is data cached according to DiscardTimer, the relevant delay parameter of rlc layer and user's peak transfer rate; Simultaneously, the transmission window of RNC side RLC entity is also considered as a reference factor, to guarantee to make full use of the shared bandwidth resource of Iub interface.
The following formula of concrete employing calculates high threshold:
TH1=min{MAX_Rue, GBR}*min{DiscardTime, T} (formula 2)
MAX_Rue=min{Ra, Rb} (formula 3)
T=min{Trst, TxWin/M}-Tiub-Top (formula 4)
The connotation of each parameter in above-mentioned the separate equations is as follows:
Ra: the peak transfer rate that the greatest physical resource that the user supports can be carried.
Rb: the peak transfer rate that all physics shared resources that activated in the current system can carry.
MAX_Rue: the peak transfer rate that inserts the user device transmissions business in the current system.
GBR: guarantee bit rate, promptly network side need guarantee the minimum speed limit of some business (such as stream class service).
DiscardTime: abandon time delay, i.e. the data cached maximum duration of NodeB side formation, exceeding the data cached of this time will be dropped, and the business that real-time is had relatively high expectations (as interaction service) needs this parameter of configuration.
T: the maximum duration that business datum can buffer memory in NodeB, exceed this time high-risely can retransmit or abandon corresponding data, also may can not send out new data.
Trst: based on the delay parameter that timer etc. similarly may cause the data re-transmission of rlc layer that abandons of rlc layer SDU.When the data that send when RLC entity transmitting terminal were not received the status report of UE end at Trst in the time, this entity can abandon corresponding data.
The transmission window length of TxWin:RNC side RLC entity transmitting terminal, window is full and when not receiving the affirmation that opposite end RLC entity returns when sending, and will can not send new data again.
M: the user is transmission rate with MAX_Rue, the number of the minimum MAC PDU of the current configuration that can transmit in a radio frames.
The transmitted in both directions time delay of Tiub:Iub interface data comprises that the HS-DSCH data are at the unidirectional transmission time delay of Iub interface and the corresponding status report unidirectional transmission time delay at Iub interface.
Top: data comprise that UE receives data to the time of sending status report from air interface from air interface, and the RNC side receive that from Iub interface status report is submitted to the processing time of rlc layer at the processing delay of UE and RNC side.
When user's priority query does not dispose DiscardTime or GBR, correspondingly, only calculate its high threshold and get final product with T or MAX_Rue.
(2) determine the low threshold that formation is data cached according to the transmitted in both directions time delay of Iub interface data.
Low threshold TH2 determines according to the transmitted in both directions time delay of Iub interface data and the peak transfer rate of user device transmissions business, guarantee to find when Subscriber Queue is lower than low threshold immediately to RNC distribute bandwidth to receive the HS-DSCH data during this period of time in do not transferred sky.
The following formula of concrete employing calculates low threshold:
TH2=min{MAX_Rue, GBR}*Tiub (formula 5)
(3) shake of shielding RNC side data buffer memory when carrying out the Iub interface capacity allocation.
The shake of the metadata cache amount that RNC is reported for fear of NodeB is too responsive, thereby the time that NodeB obtains data has been postponed Tiub, and base station transmission capacity forbids that the concrete grammar of frame is as follows:
When NodeB finds that the UserBufferSize field of carrying in capacity request frame that RNC issues or the HS-DSCH Frame shows that the buffer data size of RNC side user's priority query is 0, NodeB forbids frame at this not transmission of radio frames capacity, does not reclaim the Iub interface bandwidth resources that this formation takies;
When RNC has issued capacity request frame in ensuing several radio frames Tn, and the UserBufferSize that carries in this frame is non-0, then allows it still take corresponding Iub interface bandwidth resources;
If not receiving UserBufferSize that RNC issues in ensuing some radio frames Tn is non-0 capacity allocation frame, then forbid frame to RNC transmission capacity, reclaim the Iub interface bandwidth resources simultaneously.
For guaranteeing systematic function, need satisfy formula:
Tn＜=Tiub (formula 6)
(4) secondary allocated bandwidth.
Because the variation of the air interface environment of Uu interface might be very fast, cause the Iub interface flow control to lag behind the scheduling of Uu interface; And periodic allocated bandwidth might cause some user of being badly in need of data not obtain timely data replenishing, and these all may cause the throughput of user and even whole sub-district to be restricted, and in the embodiment of the invention this situation are called situation A.
According to formula 1, for after all need distribute the user of bandwidth to distribute the Iub interface bandwidth, might have certain bandwidth left B with certain priority orders; If select the secondary allocated bandwidth as a supplement, be about to remaining bandwidth B as compensation to situation A.
Adopt flow control algorithm to determine after the high threshold, the ideal value G of buffer data size is in the formation of NodeB side:
Wherein, Ravg is the Mean Speed that user's air interface sends data, can come smoothing processing to obtain according to the data volume of this user Uu interface actual transmissions in the certain hour window.
Referring to Fig. 2, the secondary allocation method of bandwidth comprises step:
S201, at first, calculate all users by formula 1 distribute bandwidth after, the surplus Bres of overall system bandwidth.
S202, if the surplus of overall system bandwidth is non-0, then continue to judge team leader's (being the metadata cache amount of this formation of base station side) of individual queue successively whether Que_BO reaches its desirable team leader to be worth G by former priority orders.
S203, if satisfy formula:
Que_BO＜G (formula 8)
Then this formation obtains the chance of secondary allocated bandwidth, i.e. this formation is specific user's formation, need carry out the distribution of remaining bandwidth.
The team leader Que_BO of S204, statistics individual queue is worth the number N of formation of G (promptly satisfying formula 8) less than its desirable team leader.
S205, according to described number N,, be assigned with up to remaining bandwidth and finish one by one for satisfying the queue assignment remaining bandwidth B ' of formula 8 according to former priority orders.
Preferably, be that the secondary allocated bandwidth is carried out in the formation of satisfying formula 8 according to following formula:
BO=min{RNC_BO, TH1-Que_BO} (formula 10)
Wherein, RNC_BO is the metadata cache amount of this formation of RNC side, and unit is a bit; Calculating B ' time introduces
The purpose of converting is to prevent to be abandoned in that the NodeB side is overtime by the data stacking of secondary allocated bandwidth; Bandwidth unit is a bits per second, free unit be radio frames.
By the summation of the Iub interface amount of bandwidth of the CU of secondary distribution for the bandwidth of 1 bandwidth that calculates by formula and secondary distribution.
Introduce the system that the embodiment of the invention provides below.
Referring to Fig. 3, a kind of flow control system that the embodiment of the invention provides comprises: radio network controller (RNC) 31 and base station 32.
Described RNC31 is used for sending capacity request frame to described base station 32, notifies described base station with the buffer data size in active user's the priority query; And the capacity allocation frame according to described base station 32 sends sends data to described base station 32; When the capacity that receives 32 transmissions of described base station is forbidden frame, stop to send data to described base station 32.
Described base station 32 is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query; And, when the buffer data size in described active user's the priority query is lower than described low threshold,, send the capacity allocation frame to described RNC31 for described active user distributes the Iub interface bandwidth; When the buffer data size in described active user's the priority query is higher than described high threshold, forbid frame to described RNC31 transmission capacity.
Preferably, described base station 32 comprises:
Thresholding unit 321 is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query.
Capacity allocation frame unit 322 is used for when the buffer data size in described active user's the priority query is lower than described low threshold, for described active user distributes the Iub interface bandwidth, and to described RNC31 transmission capacity allocation frame.
Capacity is forbidden frame unit 323, is used for when the buffer data size in described active user's the priority query is higher than described high threshold, forbids frame to described RNC31 transmission capacity.
Preferably, described thresholding unit 321 is got the peak transfer rate that inserts the user device transmissions business in the current system and is guaranteed that the less parameter of numerical value in the bit rate is as first parameter; Get the less parameter of numerical value in the maximum duration that abandons time delay and business datum buffer memory in self as second parameter; Described first parameter and described second parameter are multiplied each other, obtain the value of described high threshold.
Preferably, described thresholding unit 321, take the less value of numerical value in the peak transfer rate that all physics shared resources of having activated in peak transfer rate that the greatest physical resource of family equipment support can carry and the current system can carry, as the value of the peak transfer rate of the user device transmissions business in the current system of described access.
Preferably, the maximum duration of described business datum buffer memory in self according to the transmission window length of controlling the RLC entity transmitting terminal that abandons timer and described RNC31 side of rlc layer Service Data Unit based on Radio Link, is determined in described thresholding unit 321.
Preferably, the value of described low threshold is determined in described thresholding unit 321 according to the transmitted in both directions time delay of the peak transfer rate of described user device transmissions business and Iub interface data.
Preferably, described capacity is forbidden frame unit 323, further when the buffer data size in the priority query of described RNC side user in the certain hour is zero, forbids frame to described RNC transmission capacity.
Preferably, described capacity allocation frame unit 322 further calculates the surplus of Iub interface bandwidth for after described active user distributes the Iub interface bandwidth, when described surplus non-zero, the remaining bandwidth of Iub interface is distributed to the specific user.
Preferably, described capacity allocation frame unit 322 is according to the ideal value of buffer data size in described high threshold calculating user's the priority query; Whether the team leader of priority query who judges each user according to the priority orders of user's priority query successively is less than described ideal value; The team leader of priority query is defined as described specific user less than the user of described ideal value.
Preferably, described capacity allocation frame unit 322 is added up described specific user's number; According to described specific user's number,, be that described specific user's priority query distributes remaining bandwidth one by one according to the priority orders of user's priority query.
In sum, the embodiment of the invention is determined the high and low thresholding of buffer data size of user's priority query by adopting professional real-time parameter, thus make poor to the data cached real-time of NodeB side in the existing flow control algorithm, validity is low and the guarantee of sufficient property is ineffective etc. is improved.The embodiment of the invention can be accomplished 3GPP25.321 agreement regulation " time-delay of limiting layer two signalings also reduces congested the abandoning and the data retransmission amount of causing of HS-DSCH " preferably.In addition, the capacity that provides by the embodiment of the invention is forbidden the delivery plan of frame, can shield the shake of RNC_BO well, prevents to introduce the transmitted in both directions time delay of Iub interface.By the secondary bandwidth allocation scheme that the embodiment of the invention provides, can guarantee as far as possible that the user moves to channel circumstance when zone preferably by the relatively poor zone of channel circumstance, can lay in the data than capacity, to satisfy the dispatching requirement of Uu interface; The certain user that can also avoid the periodic allocation bandwidth to bring can not obtain the problem of data supply in time.
In a word, the scheme that the embodiment of the invention provides has played the effect that the source ensures, realizes that the NodeB side fully ensures the quality of service (Qos, Quality of Service) of HSDPA system user.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. a flow control methods is characterized in that, this method comprises:
In the base station,, the high threshold and the low threshold of buffer data size is set for user's priority query according to the peak transfer rate that inserts the user device transmissions business in the current system;
Radio network controller (RNC) sends capacity request frame to described base station, notifies described base station with the buffer data size in active user's the priority query;
When the buffer data size in described active user's the priority query is lower than described low threshold, described base station is that described active user distributes the Iub interface bandwidth, and send the capacity allocation frame to described RNC, described RNC sends data according to described capacity allocation frame to described base station;
When the buffer data size in described active user's the priority query was higher than described high threshold, frame was forbidden to described RNC transmission capacity in described base station, and described RNC receives described capacity when forbidding frame, stopped to send data to described base station.
2. method according to claim 1 is characterized in that, determines that the step of described high threshold comprises:
Get the peak transfer rate that inserts the user device transmissions business in the current system and guarantee that the less parameter of numerical value in the bit rate is as first parameter;
Get the less parameter of numerical value in the maximum duration that abandons time delay and business datum buffer memory in described base station as second parameter;
Described first parameter and described second parameter are multiplied each other, obtain the value of described high threshold.
3. method according to claim 1 and 2, it is characterized in that, the value of the peak transfer rate of the user device transmissions business in the current system of described access, less value in the peak transfer rate that all physics shared resources that activated in peak transfer rate that can carry for the greatest physical resource of subscriber equipment support and the current system can carry.
4. method according to claim 2, it is characterized in that, the maximum duration of described business datum buffer memory in the base station is to dispose to the transmission window length based on the RLC entity transmitting terminal that abandons timer and described RNC side of Radio Link control rlc layer Service Data Unit of described base station according to described RNC to determine.
5. method according to claim 1 is characterized in that, determines that the step of described low threshold comprises:
Determine to insert the peak transfer rate of the user device transmissions business in the current system and guarantee the less parameter of numerical value in the bit rate, this parameter be multiply by the transmitted in both directions time delay of Iub interface data, obtain the value of described low threshold.
6. method according to claim 1 is characterized in that, further when the buffer data size in the priority query of described RNC side user in the certain hour was zero, frame was forbidden to described RNC transmission capacity in described base station.
7. method according to claim 1 is characterized in that, described base station is that this method also comprised after described user distributed the Iub interface bandwidth:
The surplus of Iub interface bandwidth is calculated in described base station;
When described surplus non-zero, the specific user is distributed to the remaining bandwidth of Iub interface in described base station.
8. method according to claim 7 is characterized in that, determines that described specific user's step comprises:
Calculate the ideal value of buffer data size in the priority query of described base station user according to described high threshold;
Whether the team leader of priority query who judges each user according to the priority orders of user's priority query successively is less than described ideal value;
The team leader of priority query is defined as the specific user less than the user of described ideal value.
9. according to claim 7 or 8 described methods, it is characterized in that the step that the specific user is distributed to the remaining bandwidth of Iub interface in described base station comprises:
Statistics specific user number;
According to described specific user's number,, be that described specific user's priority query distributes remaining bandwidth one by one according to the priority orders of user's priority query.
10. a flow control system is characterized in that, this system comprises: radio network controller (RNC) and base station;
Described RNC is used for sending capacity request frame to described base station, notifies described base station with the buffer data size in active user's the priority query; And the capacity allocation frame according to described base station sends sends data to described base station; When the capacity that receives the transmission of described base station is forbidden frame, stop to send data to described base station;
Described base station is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query; And, when the buffer data size in described active user's the priority query is lower than described low threshold,, send the capacity allocation frame to described RNC for described active user distributes the Iub interface bandwidth; When the buffer data size in described active user's the priority query is higher than described high threshold, forbid frame to described RNC transmission capacity.
11. system according to claim 10 is characterized in that, described base station comprises:
The thresholding unit is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query;
The capacity allocation frame unit is used for when the buffer data size in described active user's the priority query is lower than described low threshold, for described active user distributes the Iub interface bandwidth, and to described RNC transmission capacity allocation frame;
Capacity is forbidden frame unit, is used for when the buffer data size in described active user's the priority query is higher than described high threshold, forbids frame to described RNC transmission capacity.
12. system according to claim 11 is characterized in that, described thresholding unit is got the peak transfer rate that inserts the user device transmissions business in the current system and is guaranteed that the less parameter of numerical value in the bit rate is as first parameter; Get the less parameter of numerical value in the maximum duration that abandons time delay and business datum buffer memory in self as second parameter; Described first parameter and described second parameter are multiplied each other, obtain the value of described high threshold.
13. system according to claim 11, it is characterized in that, described thresholding unit, take the less value of numerical value in the peak transfer rate that all physics shared resources of having activated in peak transfer rate that the greatest physical resource of family equipment support can carry and the current system can carry, as the value of the peak transfer rate of the user device transmissions business in the current system of described access.
14. system according to claim 12, it is characterized in that, described thresholding unit, according to the transmission window length of controlling the RLC entity transmitting terminal that abandons timer and described RNC side of rlc layer Service Data Unit based on Radio Link, determine the maximum duration of described business datum buffer memory in self.
15. system according to claim 11, it is characterized in that, described thresholding unit, determine the peak transfer rate of the user device transmissions business in the current system that inserts and the less parameter of numerical value in the assurance bit rate, this parameter be multiply by the transmitted in both directions time delay of Iub interface data, obtain the value of described low threshold.
16. system according to claim 11 is characterized in that, described capacity is forbidden frame unit, further when the buffer data size in the priority query of described RNC side user in the certain hour is zero, forbids frame to described RNC transmission capacity.
17. system according to claim 11, it is characterized in that described capacity allocation frame unit is after described active user distributes the Iub interface bandwidth, further calculates the surplus of Iub interface bandwidth, when described surplus non-zero, the remaining bandwidth of Iub interface is distributed to the specific user.
18. system according to claim 17 is characterized in that, described capacity allocation frame unit is according to the ideal value of buffer data size in described high threshold calculating user's the priority query; Whether the team leader of priority query who judges each user according to the priority orders of user's priority query successively is less than described ideal value; The team leader of priority query is defined as described specific user less than the user of described ideal value.
19., it is characterized in that described capacity allocation frame unit is added up described specific user's number according to claim 17 or 18 described systems; According to described specific user's number,, be that described specific user's priority query distributes remaining bandwidth one by one according to the priority orders of user's priority query.
20. a base station is characterized in that, described base station comprises:
The thresholding unit is used for the peak transfer rate according to the user device transmissions business that inserts current system, and the high threshold and the low threshold of buffer data size is set for user's priority query;
The capacity allocation frame unit when being used for buffer data size in active user's priority query and being lower than described low threshold, for described active user distributes the Iub interface bandwidth, and sends the capacity allocation frame to radio network controller (RNC);
Capacity is forbidden frame unit, when being used for buffer data size in active user's priority query and being higher than described high threshold, forbids frame to RNC transmission capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100579521A CN101516109B (en) | 2008-02-21 | 2008-02-21 | Method, system and device for controlling flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100579521A CN101516109B (en) | 2008-02-21 | 2008-02-21 | Method, system and device for controlling flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101516109A CN101516109A (en) | 2009-08-26 |
| CN101516109B true CN101516109B (en) | 2010-11-03 |
Family
ID=41040344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100579521A Active CN101516109B (en) | 2008-02-21 | 2008-02-21 | Method, system and device for controlling flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101516109B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827033B (en) * | 2010-04-30 | 2013-06-19 | 北京搜狗科技发展有限公司 | Method and device for controlling network traffic and local area network system |
| CN102264107A (en) * | 2010-05-28 | 2011-11-30 | 大唐移动通信设备有限公司 | Method, device and system for allocating HS-DSCH (High Speed-Downlink Shared Channel) capacity |
| CN102387541B (en) * | 2010-09-06 | 2014-04-16 | 普天信息技术研究院有限公司 | Iub interface flow control protection method and base station |
| CN102487531B (en) * | 2010-12-06 | 2014-07-02 | 普天信息技术研究院有限公司 | Flow control method for flow self-adaption modification of Iub port |
| CN102595507B (en) * | 2011-01-13 | 2014-07-30 | 普天信息技术研究院有限公司 | Lower limit stream control method |
| WO2012109932A1 (en) * | 2011-11-16 | 2012-08-23 | 华为技术有限公司 | Bandwidth adjustment method, sending chip and system |
| CN103139843B (en) * | 2011-11-30 | 2018-07-31 | 中兴通讯股份有限公司 | A kind of priority extension queue implementing method and system |
| CN103428109B (en) * | 2012-05-23 | 2016-12-14 | 鼎桥通信技术有限公司 | The data transmission method of a kind of multi-carrier user and device |
| CN102970246B (en) * | 2012-11-23 | 2017-12-22 | 上海寰创通信科技股份有限公司 | A kind of Ethernet message flux control method |
| CN104053186B (en) * | 2014-06-23 | 2018-12-04 | 上海中兴软件有限责任公司 | Flow control methods and device |
| CN104135722B (en) * | 2014-08-22 | 2017-08-08 | 电子科技大学 | A kind of method of base stations and multiuser broadcast transmission data |
| CN105744568A (en) * | 2014-12-08 | 2016-07-06 | 中兴通讯股份有限公司 | Method and device of flow control for reducing RLC (Radio Link Control) layer data retransmission |
| CN107592190A (en) * | 2016-07-07 | 2018-01-16 | 中国电信股份有限公司 | A kind of control method of carrier aggregation, device and base station |
| CN113395733B (en) * | 2021-07-30 | 2023-11-21 | 上海瀚讯信息技术股份有限公司 | Method for improving user capacity of base station based on optimized HARQ (hybrid automatic repeat request) cache utilization rate |
-
2008
- 2008-02-21 CN CN2008100579521A patent/CN101516109B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101516109A (en) | 2009-08-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101516109B (en) | Method, system and device for controlling flow | |
| JP4510826B2 (en) | Method for scheduling uplink transmission of user equipment and base station | |
| CN100566295C (en) | A kind of Packet Service scheduling method for wireless resource based on service quality guarantee | |
| CN101926133B (en) | Communication scheduling method and system | |
| CN101340358B (en) | Flow control method, system and flow control entity | |
| CN101521624B (en) | Method and device for distributing downlink bandwidth of lub port | |
| CN100579107C (en) | Iub port flow control method | |
| CN101123622B (en) | A method and device for Iub interface traffic control | |
| CN101232716B (en) | Method and apparatus for determining business priority level as well as scheduling method and apparatus | |
| EP1770918A1 (en) | Data flow control on the interfaces of a radio access network | |
| CN1954521A (en) | Method and apparatus for scheduling enhanced uplink dedicated channels in a mobile communication system | |
| US7860992B2 (en) | Method of and apparatus for adaptive control of data buffering in a data transmitter | |
| AU2005338260B2 (en) | High Capacity Scheduler | |
| CN101610198A (en) | A kind of dispatching method of Packet Service and dispatching device | |
| CN104469957A (en) | LTE system base station device downlink resource distribution method and device | |
| CN102164412B (en) | Resource scheduling method and device for guaranteed bit rate service | |
| CN101170389B (en) | Method for selecting first transmission block size of protocol data unit at radio link control layer | |
| CN101170388B (en) | Method for identifying whether resending protocol data unit is sectioned | |
| CN100459582C (en) | Group dispatching and channel distributing method for HSDPA system | |
| CN101207570A (en) | Data transmission method, data sending rate control method and base station | |
| CN100493040C (en) | Method for controlling up-link flow | |
| CN100431382C (en) | Method for dynamic regulating resource based on group service | |
| CN100459578C (en) | A method to acquire downlink data from upper network equipment by cell base station | |
| CN101854660B (en) | Congestion control method and device | |
| CN101340615A (en) | Method, system and apparatus for realizing maximum rate control of service |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |