CN102291778A - Communication flow rate control method and device - Google Patents
Communication flow rate control method and device Download PDFInfo
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- CN102291778A CN102291778A CN201010211247XA CN201010211247A CN102291778A CN 102291778 A CN102291778 A CN 102291778A CN 201010211247X A CN201010211247X A CN 201010211247XA CN 201010211247 A CN201010211247 A CN 201010211247A CN 102291778 A CN102291778 A CN 102291778A
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Abstract
The invention discloses a communication flow rate control method and a device, which can respectively use a source base station of a terminal to obtain the link information of a target base station, the source base station determines the applicable throughput during the communication of each target base station and the terminal according to the obtained link information of the target base station. The communication flow rate control method and the device disclosed by the invention can avoid the conditions of over frequent sending of throughput information from the target base station to the source base station and over large information quantity, and in addition, the applicable throughput during the communication with the terminal is relatively independently determined for each target base station. Therefore, the accuracy of the flow rate control aiming at the terminal can be effectively improved, and the satisfaction degree of users is improved.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of communication flows control method and device.
Background technology
Cdma2000 HRPD network is based on the high-speed grouped data network of cdma2000 technology, and it can satisfy the growing HRPD (high rate packet data) requirement of user, comprises business such as multimedia.In the enhancing process of cdma2000 HRPD air interface, introduced the performance of single carrier multithread (one single carrier multi-streaming).
Multithread (multi-streaming) technology is mainly used in and strengthens the effect that edge cell covers terminal reception master data business, the form of expression is generally: in the terminal of a plurality of cell coverage areas, will receive from a plurality of base stations or the independent separately packet that sends of Access Network (Access Network).
Terminal at cell edge receives data independently of one another from a plurality of base stations, and basic situation is that the terminal of cell edge can be received data from a plurality of base stations, and does scheduling decision to the current channel conditions of these base station feedback with the scheduler of assisting the base station.In addition, the also capable monitoring corresponding downstream of terminal control channel, and from each base station reception data.
It is pointed out that the terminal that is positioned at cell edge when benefiting, has also produced some problems obtain the transmission data simultaneously from a plurality of base stations.Because each base station is independently scheduling separately, each base station alone according to principles of justice and equity or algorithm to the terminal transmission data; Therefore, described terminal can be damaged the impression of other terminal of above-mentioned base station when obtaining interests, and this damages the fairness that is positioned at other terminal outside the cell edge.
Generation for fear of the problems referred to above, proposed a kind of thinking of flow control in the standard discussion: periodically that self is the current throughput information of the target BS of terminal is issued source base station, source base station then will converge from the throughput of the different target base station of this terminal, and the throughput after will converging is issued the reference of each target BS as flow control.But this method can produce following problem:
The throughput information that target BS is issued source base station is too frequent and amount of information is excessive, causes the expense between target BS and the source base station huge, very easily influences normal, the communication smoothly of terminal;
In fact throughput after converging can not accurately reflect the physical link present situation, causes the flow control carried out at terminal inaccurate equally, the situation of the throughput less stable that terminal shown in Figure 1 receives occurs; Inaccurate flow control meeting obviously influences the communication quality of terminal, reduces user satisfaction.Among Fig. 1, ordinate is the throughput that terminal receives, and abscissa is the time that terminal receives throughput.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of communication flows control method and device, to improve the accuracy of carrying out flow control at terminal.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of communication flows control method, this method comprises:
The source base station of terminal is known the link information of target BS; Source base station is according to the target BS link information of being known, the throughput that is suitable for when determining each target BS and terminal communication.
The process of knowing described link information comprises:
The source base station of terminal sends the target BS of link query messages to terminal, and target BS sends link information message to described source base station, carries described link information in this link information message.
The link query messages that described link query messages is two inter-base station interfaces, the link information message that described link information message is two inter-base station interfaces, described link information comprises the throughput of link and the capacity information of link.
The process of determining described throughput comprises:
According to described link information, obtain the top limit of throughput according to the fair algorithm of Target cell.
Further will be for the determined throughput of each target BS sends to corresponding target BS, by each target BS according to the data transfer throughput of the throughput scheduling of receiving to terminal.
A kind of communication flows control device, this device comprise link information acquiring unit, throughput decision package; Wherein,
Described link information acquiring unit is used to know the link information of target BS, and the target BS link information of being known is notified to described throughput decision package;
Described throughput decision package is used for according to the described target BS link information of receiving, the throughput that is suitable for when determining each target BS and terminal communication.
In knowing the process of described link information, described link information acquiring unit is used to send the target BS of link query messages to terminal, and receives the link information message from described target BS, carries described link information in this link information message;
In the process of determining described throughput, described throughput decision package is used for obtaining the top limit of throughput according to the fair algorithm of Target cell according to described link information.
The link query messages that described link query messages is two inter-base station interfaces, the link information message that described link information message is two inter-base station interfaces, described link information comprises the throughput of link and the capacity information of link.
Described throughput decision package is further used for: will send to corresponding target BS for the determined throughput of each target BS, and make each target BS can be according to the data transfer throughput of the throughput received scheduling to terminal.
This device is arranged in the base station.
As seen, communication flows control method of the present invention and device, the too frequent and excessive situation of amount of information of the throughput information that all can avoid target BS to issue source base station, and relatively independent the throughput of determining and being suitable for during terminal communication for each target BS; Thereby can effectively improve the accuracy of carrying out flow control at terminal, improved user satisfaction.
Description of drawings
Fig. 1 is the communication flows control effect schematic diagram of prior art;
Fig. 2 is the communication flows control flow chart of one embodiment of the invention;
Fig. 3 is a communication flows control flow sketch of the present invention;
Fig. 4 is the communication flows control device figure of one embodiment of the invention.
Embodiment
In general, realize that the operation that communication flows is controlled mainly can may further comprise the steps:
Steps A. the source base station of terminal is understood the actual state of current link channel to target BS, can be described as link information;
Each target BS of step B. feeds back current link information to source base station;
Step C. source base station calculates the relevant informations such as throughput that each target BS sends to terminal according to the target BS link information that receives, and feeds back to each target BS again; The throughput that calculates can be called target throughput.
The throughput that each target BS basis of step D. is received, the throughput that is suitable for during by scheduler control and terminal communication.
In above-mentioned steps C, the method that source base station calculates the target throughput of each target BS has multiple, and described calculation process can depend on the dispatching algorithm of scheduler of source base station or other parameter in the practical application scene.
Such as: suppose the current n of having of a terminal link, Tt is expressed as the total throughout that terminal provides, T[i] be illustrated in the active link throughput of sub-district [i], Tc[i] expression sub-district [i] the average link capacity, this average link capacity can calculate by average DRC (Data Rate Control, the data rate control) value in the period.Like this, T[i]/Tc[i] just be illustrated in sub-district [i] scheduling efficient, perhaps represent load corresponding to sub-district [i].Tt[i] be the target link in the sub-district throughput of [i], be used for being illustrated in sub-district [i] and obtain the top limit of throughput according to the fair algorithm of Target cell, can be calculated as follows:
Tt[i]＝Tt*(T[i]/Tc[i])/(T[1]/Tc[1]+T[2]/Tc[2]+....+T[n]/Tc[n])。
Based on above operation thinking, can carry out flow process as shown in Figure 2.Referring to Fig. 2, Fig. 2 is the communication flows control flow chart of one embodiment of the invention, and this flow process may further comprise the steps:
Step 201: the source base station of terminal sends the target BS 1 of link query messages to terminal, is designated access terminal identification (access terminal identifier, link of terminal information ATID) with inquiry.Link inquiry (QueryLink) message that described link query messages can be two inter-base station interfaces.
Step 202: the source base station of terminal sends the target BS 2 of link query messages to terminal, is designated the link of terminal information of ATID with inquiry.
Step 201 does not have strict sequencing with step 202 when reality is carried out.
Step 203: target BS 1 sends link information message to source base station, and this message comprises the throughput (Link Throughput) of link and link capacity (Link Capacity) etc.Link information (LinkInfo) message that described link information message can be two inter-base station interfaces.
Step 204: target BS 2 sends link information message to source base station, and this message has comprised the throughput and the link capacity information of link.
Step 203 does not have strict sequencing with step 204 when reality is carried out.
Step 205: based on link informations such as the link throughput of each target BS feedback and load informations, source base station calculates the throughput distribution value of each target BS at terminal.
Afterwards, source base station sends and chain circuit message is set to target BS 1, and this message comprises the throughput distribution value of target BS 1 at terminal.Target BS 1 is according to the data transfer throughput of the described throughput distribution value scheduling of receiving to terminal.
Step 206: source base station sends and chain circuit message is set to target BS 2, and this message comprises the throughput distribution value of target BS 2 at terminal.Target BS 2 is according to the data transfer throughput of the described throughput distribution value scheduling of receiving to terminal.
Step 205 does not have strict sequencing with step 206 when reality is carried out.
By the above as can be known, the operation thinking that realizes communication flows control can be represented as shown in Figure 3.Referring to Fig. 3, Fig. 3 is a communication flows control flow sketch of the present invention, and this flow process may further comprise the steps:
Step 310: the source base station of terminal is known the link information of target BS.
Step 320: source base station is according to the target BS link information of being known, the throughput that is suitable for when determining each target BS and terminal communication.
In order to guarantee that above-mentioned operating process can carry out smoothly, can carry out setting as shown in Figure 4.Referring to Fig. 4, Fig. 4 is the communication flows control device figure of one embodiment of the invention, and this device comprises continuous link information acquiring unit, throughput decision package, and these two unit can divide if close in the equipment such as being located at the base station.
During concrete the application, the link information acquiring unit can be known the link information of target BS in modes such as active inquiry, as: the throughput of link and the load information of sub-district etc.And, the link information acquiring unit can also send to the throughput decision package with the target BS link information of knowing, by the throughput decision package according to the target BS link information received, the throughput that is suitable for when determining each target BS and terminal communication, as: target BS at throughput distribution value of terminal etc.
Afterwards, the throughput decision package can be with for the determined throughput of each target BS sends to corresponding target BS, by each target BS according to the data transfer throughput of the throughput scheduling of receiving to terminal.
In sum as seen, no matter be method or device, communication flows control technology of the present invention, the too frequent and excessive situation of amount of information of the throughput information that all can avoid target BS to issue source base station, and relatively independent the throughput of determining and being suitable for during terminal communication for each target BS; Thereby can effectively improve the accuracy of carrying out flow control at terminal, improved user satisfaction.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a communication flows control method is characterized in that, this method comprises:
The source base station of terminal is known the link information of target BS; Source base station is according to the target BS link information of being known, the throughput that is suitable for when determining each target BS and terminal communication.
2. method according to claim 1 is characterized in that, knows that the process of described link information comprises:
The source base station of terminal sends the target BS of link query messages to terminal, and target BS sends link information message to described source base station, carries described link information in this link information message.
3. method according to claim 2, it is characterized in that, the link query messages that described link query messages is two inter-base station interfaces, the link information message that described link information message is two inter-base station interfaces, described link information comprises the throughput of link and the capacity information of link.
4. according to each described method of claim 1 to 3, it is characterized in that, determine that the process of described throughput comprises:
According to described link information, obtain the top limit of throughput according to the fair algorithm of Target cell.
5. method according to claim 4 is characterized in that, further will be for the determined throughput of each target BS sends to corresponding target BS, by each target BS according to the data transfer throughput of the throughput scheduling of receiving to terminal.
6. a communication flows control device is characterized in that, this device comprises link information acquiring unit, throughput decision package; Wherein,
Described link information acquiring unit is used to know the link information of target BS, and the target BS link information of being known is notified to described throughput decision package;
Described throughput decision package is used for according to the described target BS link information of receiving, the throughput that is suitable for when determining each target BS and terminal communication.
7. device according to claim 6, it is characterized in that, in knowing the process of described link information, described link information acquiring unit, be used to send the target BS of link query messages to terminal, and reception carries described link information from the link information message of described target BS in this link information message;
In the process of determining described throughput, described throughput decision package is used for obtaining the top limit of throughput according to the fair algorithm of Target cell according to described link information.
8. device according to claim 7, it is characterized in that, the link query messages that described link query messages is two inter-base station interfaces, the link information message that described link information message is two inter-base station interfaces, described link information comprises the throughput of link and the capacity information of link.
9. according to each described device of claim 6 to 8, it is characterized in that, described throughput decision package is further used for: will send to corresponding target BS for the determined throughput of each target BS, and make each target BS can be according to the data transfer throughput of the throughput received scheduling to terminal.
10. according to each described device of claim 6 to 8, it is characterized in that this device is arranged in the base station.
Priority Applications (2)
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| CN201010211247.XA CN102291778B (en) | 2010-06-18 | 2010-06-18 | A kind of communication flow rate control method and device |
| PCT/CN2011/075900 WO2011157226A1 (en) | 2010-06-18 | 2011-06-17 | Method and apparatus for controlling communication flow |
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| CN201010211247.XA CN102291778B (en) | 2010-06-18 | 2010-06-18 | A kind of communication flow rate control method and device |
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| CN102291778B CN102291778B (en) | 2016-08-03 |
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| WO2006071174A1 (en) * | 2004-12-30 | 2006-07-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for flow control at cell change for high speed downlink packet access |
| CN101061736A (en) * | 2004-11-18 | 2007-10-24 | 艾利森电话股份有限公司 | Method and apparatus for supporting packet data services in service area boundary regions |
| EP1986454A1 (en) * | 2007-04-26 | 2008-10-29 | Nokia Siemens Networks Oy | A method and a system for initalizing a handover of a mobile station |
| CN101448323A (en) * | 2007-11-30 | 2009-06-03 | 阿尔卡特朗讯 | Method for performing resource allocation, base station and wireless communication network |
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| CN101247238B (en) * | 2007-02-14 | 2011-10-05 | 华为技术有限公司 | Method and system for data flux statistics |
| CN101494863B (en) * | 2008-01-24 | 2014-03-26 | 株式会社Ntt都科摩 | Method, apparatus and base station for distributing wireless resource of uplink |
| CN101516112A (en) * | 2009-02-19 | 2009-08-26 | 上海交通大学 | Multi-cell radio network controller channel information feedback and dispatching method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061736A (en) * | 2004-11-18 | 2007-10-24 | 艾利森电话股份有限公司 | Method and apparatus for supporting packet data services in service area boundary regions |
| WO2006071174A1 (en) * | 2004-12-30 | 2006-07-06 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for flow control at cell change for high speed downlink packet access |
| EP1986454A1 (en) * | 2007-04-26 | 2008-10-29 | Nokia Siemens Networks Oy | A method and a system for initalizing a handover of a mobile station |
| CN101448323A (en) * | 2007-11-30 | 2009-06-03 | 阿尔卡特朗讯 | Method for performing resource allocation, base station and wireless communication network |
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| WO2011157226A1 (en) | 2011-12-22 |
| CN102291778B (en) | 2016-08-03 |
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