CN102273297A - Method for resource allocation in a communication system - Google Patents
Method for resource allocation in a communication system Download PDFInfo
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- CN102273297A CN102273297A CN2008801326167A CN200880132616A CN102273297A CN 102273297 A CN102273297 A CN 102273297A CN 2008801326167 A CN2008801326167 A CN 2008801326167A CN 200880132616 A CN200880132616 A CN 200880132616A CN 102273297 A CN102273297 A CN 102273297A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers
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Abstract
The present invention provides a method for resource sharing among different transport resources, comprising the steps of: RNC (101) selecting related preferred transport type, RNC (101) determining availability status of the preferred transport resource, RNC (101) determining utilization status of the preferred transport resource in low load state, and RNC (101) setting up a new transport bearer on the preferred transport resource. With this invention, the overall utilization rate of transport resource can increase and the congestion and overload of specific transport resources can be avoided.
Description
Technical field
The present invention relates to telecommunication technology, and relate more specifically to be used for the method for resource-sharing between the different transfer resources of UTRAN.
Background technology
There is today increasing transfer resource to be introduced into UTRAN (UMTS terrestrial radio access network), for example, ATM transmission and IP transmission.The IP transmission technology has its own specific advantage, is serving as UTRAN transmission solution gradually, and will be alternative for the ATM transmission technology.Because the current leading position and the migration problem from the ATM transmission network to the IP transmission network of ATM transmission network, a plurality of transmission technologys will be for still coexistence and work mutually in radio access network for a long time.Must find some modes with the UTRAN node of guaranteeing to have ATM or IP can be in the UTRAN network such as intercommunication mutually on the distinct interfaces such as Iu, Iub, Iur interface.
Require RNC (radio network controller) with at two stacks (ATM and IP) of supporting transmission technology on the Iub interface in case in UMTS a plurality of transfer resources of support.Because the difference of user service requires and the migration influence, RBS (radio base station) supports arbitrary transfer resource of ATM or IP or both.Two transmission technologys can coexist well and mutually work (interwork) be essential, also be important.
Current, mainly contain two kinds of solutions about the mutual work between the different transfer resources.On Iub interface, suppose that RNC supports two stacks (ATM and IP) of transmission technology.RNC101 directly is connected with different types of RBS 102 as shown in Figure 1.
Under this situation, RNC 101 must be provided with new transmission bearer based on the transfer resource of the same type of supporting with RBS 102.For example, if 102 of RBS support the ATM transfer resource, then on RNC 101 sides only the new transmission bearer that is used on the Iub interface of ATM transfer resource set up.Even RBS 102 also supports two stacks (as ATM and IP) of transfer resource, RNC 101 also can only be provided with transmission bearer respectively on two types transfer resource, and wherein, it should be identical on both sides.The use of two kinds of different types of transfer resources is independently.
For solving this problem of between different types of transmission technology, communicating by letter, in 3GPP TR25.933 V5.4.0 and Ericsson patent (patent No.: US 2001/0053145 A1), provide a kind of new equipment.This new equipment is called mutual working cell (IWU) 103, and it is defined as shown in Figure 2 and realizes conversion between different transmission technologys.RNC 101 can be provided with new transmission bearer based on different transfer resources by means of this conversion of being supported by IWU 103 in RBS 102.
For example, RNC 101 has idle ATM transfer resource on Iub interface.Equity RBS 102 nodes are only supported the IP transmission technology.When RNC 101 set up new transmission for user plane transmits, RNC 101 usefulness Alcap agreements sent to IWU 103 with ATM transfer address and blind ID.When IWU 103 received the request of transmission bearer setting, IWU 103 selected the corresponding IP address of RBS102, and by IP Alcap agreement and RBS 102 transmission bearer is set.By this mutual working equipment, can between RNC 101 and RBS 102, transmission bearer be set successfully.
This basic process is shown in Figure 3.Herein, suppose RNC 101 support two stacks of transmission and only the ATM transfer resource can use.102 of RBS support the IP transmission.
Yet the transfer resource use among the RNC 101 is still incoherent.This causes the imbalance utilization in the different transfer resources.In more serious situation, a kind of transfer resource is highly used, even uses up, and another kind of transfer resource is extremely idle.Therefore, because invalid transfer resource uses, the significant wastage of transfer resource may take place.
Summary of the invention
An object of the present invention is to provide the method that is used for coming with high resource utilization allocation of transmission resources at radio circuit.
Another purpose of the present invention provides the high radio circuit of resource utilization.
According to an aspect of the present invention, the invention provides a kind of method, comprise following first step:
Reception is to being provided with the request of the transmission bearer corresponding with the transmission COS, and the transmission COS is related with one of transfer resource.If related transfer resource is that then transmission bearer is provided with on the transfer resource of association in low load condition.If related transfer resource is not in low load condition, and any other transfer resource is in low load condition, then transmission bearer is provided with on described any other transfer resource.If top arbitrary situation does not all take place, then refusal request.
According to a further aspect in the invention, the invention provides a kind of radio circuit, comprise a plurality of radio base stations and the radio network controller of communicating by letter with described a plurality of radio base stations.Wherein, radio network controller is configured to allocation of transmission resources in following steps.At first, receive the request of the transmission bearer corresponding with the transmission COS is set from one of described a plurality of radio base stations, the transmission COS is related with one of transfer resource.Subsequently, if related transfer resource is in hanging down load condition, then transmission bearer is provided with on the transfer resource of association.If related transfer resource is not in low load condition, and any other transfer resource is in low load condition, then transmission bearer is provided with on described any other transfer resource.If top arbitrary situation does not all take place, then refusal request.
By the present invention, possibility can realize the resource-sharing between the different transfer resources and increase the overall utilance of transfer resource, avoids the congested of specific transfer resource and overload.
The present invention also provides the redundancy scheme between the different transfer resources.Under a certain unusual condition, when a kind of transfer resource is unavailable, can on other available transmission resources, set up new service so that guarantee network-accessible and stable, robustness.
In the present invention, the dual threshold of method is guaranteed the accuracy of utilizing state estimation and the reliability of transfer resource.
The strategy of the threshold basis of different stage provides the flexi mode of resource-sharing between various types of users in the dissimilar services, has increased the utilization of transfer resource.
Description of drawings
From the following detailed description of preferred embodiment, when the reference accompanying drawing carried out, it is clearer for those skilled in the art that feature of the present invention and advantage will become.
In these figures:
Fig. 1 illustrates a solution of working mutually according to prior art between different transfer resources;
Fig. 2 illustrates another solution of working mutually according to prior art between different transfer resources;
Fig. 3 illustrates according to the basic process in the mutual work of existing solution;
Fig. 4 illustrates the architecture that is used for resource-sharing between different transfer resources;
Fig. 5 illustrates the main flow chart that is used for resource-sharing between different transfer resources;
Fig. 6 illustrates throughput or bandwidth utilization and the relation between the time;
Fig. 7 illustrates the demonstration program of dual threshold method;
Fig. 8 illustrates the different stage of the different priorities that is used for different service-users;
Fig. 9 illustrates the demonstration program of multi-level protection threshold method.
Embodiment
It should be noted that the present invention describes in the context of unrestriced, the example of Universal Mobile Telecommunications System (UMTS).Below example will describe in the Iub interface transfer resource between RNC 101 and RBS 102 and work mutually.
As shown in Figure 4, in the radio access network of UMTS, suppose that RNC 101 supports two stacks (as ATM/IP) of transmission technology.RNC 101 is connected with dissimilar RBS 102 by Iub interface.Some RBS 102 support the IP transmission.Some RBS 102 also support the ATM transmission.Other is supported by the IP of Iub and ATM transmission.Transfer resource between RNC 101 and the IWU103 is considered to resource pool 104, and can share mutually based on ad hoc approach of the present invention.
Different services requires based on its certain quality of service (Qos) and bandwidth usage and has its preferred transfer resource.For example, data, services is preferably transmitted on the IP transfer resource, and AMR (adaptive multi-rate) service is owing to preferably transmit on the ATM transfer resource the sensitivity of propagation delay etc.This relation between different services and the transfer resource can be disposed by operator on RNC 101.In the present invention, this type of preferably is met when possibility all the time.
Fig. 5 describes among the RNC 101 the main process of transmission resource management between ATM and IP transmission technology.RNC 101 measures the utilizations of transfer resources in real time, and stores off status information (user data-throughput in for example IP-based transmission or based on the utilance of band width in physical resource in the transmission of ATM).
When the new request comes of transmission bearer, RNC 101 will start the process of transmission resource management.At step S501, when request comes was set, RNC 101 selected relevant preferred transport-type according to COS and the configuration relation between the transfer resource at new transmission bearer (user plane that for example is used for R99PS data RAB).
At step S502, RNC 101 checks the state that utilizes of preferred transfer resource, if it in low (normally) load condition, then at step S503, new transmission bearer preferably is being provided with on the transfer resource.
If at step S502, RNC 101 determines preferred IP transfer resource in high load condition, and then in step 504, RNC 101 checks the state that utilizes of not preferred transfer resource, if it is in low load condition, then new transmission bearer will be provided with on this not preferred ATM transfer resource.Otherwise, the request (step S506) of the new transmission bearer of RNC 101 refusals.At step S502, preferably RNC 101 checked the usability status of transfer resource before inspection utilizes state.
The method allows unavailable or on high load condition the time, different transfer resources are shared mutually at a kind of transfer resource.This can guarantee the good utilization of transfer resource and keep balance between the different transfer resources.
In above-mentioned main process, the estimation that utilizes state of transfer resource and resource-sharing are two key components.The accuracy of utilizing the estimation of state is the prerequisite that resource is adjusted.
Two kinds of methods have been introduced below to be used to estimating that transfer resource utilizes state and resource management.First method is that dual threshold detects and hysteresis timer strategy.The method will be guaranteed accuracy of estimating and the mistake judgement of avoiding from the shake of transfer resource.
Another new method is the multi-stage protection threshold value that dissimilar service-users is provided with transfer resource permission (admission).The method can be guaranteed to utilize flexibly between the different transfer resources and manage and provide the favorable service quality for various users.
In the dual threshold method, dual threshold (High_Thr and low_Thr) and hysteresis timer are disposed by operator.Herein, as shown in Figure 6, the load during the measurement is at the average throughput in band width in physical in the ATM transmission or the IP transmission.
The main process of dual threshold method is shown in Figure 7.
At step S701, RNC 101 resides in the normal load state of transfer resource use, and sign (Load_status_flag) is 0.RNC 101 monitors the state that utilizes on the current transfer resource.At step S702, RNC 101 checks the utilance of current average measurement, if it is greater than high threshold (High_Thr), then at step S703, the duration that RNC 101 checks under the high threshold is if it is longer than the hysteresis timer of time, then at step S704, RNC 101 determines this transfer resource in high load condition, and will indicate that (Load_status_flag) is set to 1.
Subsequently, at step S705, RNC 101 checks the utilance of current average measurement, if it is less than low threshold value (Low_Thr), then at step S706, the duration that RNC 101 checks under the high threshold is if it is longer than the hysteresis timer of time, then RNC 101 judgement transfer resources are got back to the normal load state, and will indicate that (Load_status_flag) is made as 0 from 1.
Perhaps, be not more than high threshold (High_Thr) (at step S702) if determine the utilance of current average measurement, perhaps then process is got back to step S701 no longer than the hysteresis timer (at step S703) of time the duration under the high threshold.
Threshold value and hysteresis timer also can dynamically be adjusted based on ad hoc approach.In addition, can be used about the level and smooth of a plurality of samples and the method for accumulating and the estimation that utilizes state is had better effect.
The method of dual threshold and hysteresis timer can the monitor transmissions utilization of resources trend, and utilize to make on the state accurately and judge what resource was used.This has guaranteed that resource adjustment subsequently has correct prerequisite.
For the burst characteristic of Packet data service, the fluctuation of the transfer resource that it is corresponding is more obvious and strong.Therefore, recommendation the method is used for the state that utilizes on the preferred IP transfer resource of monitoring data service-user.
The present invention defines a plurality of protection threshold values of the utilization of resources for the other method of utilizing state and resource management to provide of transfer resource is provided, and realizes the different access priorities of different service-users during the load balancing between the different transfer resources.
In the method, be the permission priority of user's different COS configuration transfer resources based on the type of preferred transfer resource and the qos requirement of service by operator.
In the example below, the preferred transfer resource of supposing to be used for AMR user is the ATM bandwidth.Correspondingly, the priority of COS is provided with as follows: for the AMR user who the enters high priority of (as switching the user), for data user who enters and local AMR user's medium priority, and for other user's low priority.
Also based on user's dissimilar different admission threshold that define transfer resource, with the high-transmission resource utilization of guaranteeing whole system and good performance.Correspondingly, three threshold values in Fig. 8, have been defined.
When Fig. 9 illustrates new transmission bearer request comes at the main process of the resource allocation of user base.
At step S901, during new transmission bearer (as data user's transmission bearer) request comes, RNC 101 will write down the COS of this new transmission bearer, and check the current state that utilizes of the ATM bandwidth resources of distribution.At step S902, if RNC 101 checks that bandwidth utilization comprises the transfer resource of new needs, it is not less than threshold value 1, and the utilance of this expression transfer resource is in high load condition, and then RNC 101 will refuse the request (at step S907) of this transmission bearer.
If at step S902, RNC 101 determines to comprise the bandwidth utilization of transfer resource of new needs less than threshold value 1, and then at step S902, RNC 101 checks that whether request is from the AMR user who enters; If not, then at step S904, RNC 101 check whether ask from the data user who enters or local AMR user and bandwidth utilization less than threshold value 2; If not, then at step S905, RNC 101 checks that whether bandwidth utilization is less than threshold value 3; If not, then refuse current transmission bearer request at step S907.
If at step S903, S905 or S905, the result of judgement is a "Yes", and then at step S906, RNC 101 is used in the new biography transmission bearing with the transfer resource branch of free time.
When inserting simultaneously, RNC 101 will adopt at first separately as the identical method of top unique user a plurality of new users (as an AMR user and a data user).When the transfer resource of free time only enough is used for a user, preferred user will have the higher priority that is assigned with idle transfer resource.For example, Kong Xian ATM transfer resource will be assigned to its preferred AMR service-user herein, and the data, services user will be placed in and wait for idling-resource in the formation.
Another kind of situation is when the data, services user inserts with High Data Rate, the current free time, whether preferred and not preferred transfer resource can satisfy its bandwidth requirement, subsequently, RNC 101 can consider and will switch to more low data rate under the data, services user, checks according to the said method that is used for unique user as Fig. 9 whether idle transfer resource enough is used for this user then.
On this example, the method is used in the process of service-user permission.Simultaneously, during service-user keeps, transfer resource will discharge and redistributes and change along with resource.RNC101 will monitor the utilization of all transfer resources simultaneously, and follow the tracks of the fluctuation of the load of transfer resource.Based on this knowledge, it will dynamically adjust to different service-users its preferred transfer resource, and keep the balance of the utilization of different transfer resources on the whole.
The method of dual threshold provides estimates the reliable fashion that transfer resource utilizes.The method of multi-stage protection threshold value has provided the strategy on transfer resource is shared based on the service-user priority of operator's configuration.The transfer resource that both can be implemented between the transfer resources dissimilar among RNC 101 and the IWU 103 is together shared.
It is exemplary that the embodiment of the invention described above only is intended to.Those skilled in the art can understand, and the embodiment that provides further changes in can be in many aspects.Therefore, scope of the present invention only is intended to be limited by the scope of the claim of enclosing.
Claims (10)
1. method that is used in radio communication node allocation of transmission resources may further comprise the steps:
Reception is to being provided with the request of the transmission bearer corresponding with the transmission COS, described transmission COS related with one of described transfer resource (S501);
If associated transfer resource then is provided with described transmission bearer (S503) on associated transfer resource in low load condition (S502),
If associated transfer resource is not in low load condition, and any other transfer resource then is provided with described transmission bearer (S505) on described any other transfer resource in low load condition (S504),
Otherwise, rejecting said request.
2. the method for claim 1, wherein said transfer resource comprises the throughput or the bandwidth of channel.
3. method as claimed in claim 2, wherein when the average measurement utilance of described bandwidth to duration of being longer than predetermined time interval during less than threshold value, associated transfer resource is regarded as in described low load condition.
4. method as claimed in claim 2, wherein a plurality of users are assigned to a plurality of threshold values respectively, and for each of described user, when the average measurement utilance of described bandwidth to duration of being longer than predetermined time interval during less than the threshold value of being assigned, associated transfer resource is regarded as in described low load condition.
5. as each described method of claim 1-5, wherein said node is a radio network controller.
6. radio circuit comprises:
A plurality of radio base stations (102); And
Radio network controller (101) is communicated by letter with described a plurality of radio base stations, and wherein said radio network controller (101) is configured to allocation of transmission resources in following mode:
Receive the request of the transmission bearer corresponding with the transmission COS is set from one of described a plurality of radio base stations (102), described transmission COS is related with one of transfer resource; And
If associated transfer resource then is provided with described transmission bearer on associated transfer resource in low load condition,
If associated transfer resource is not in low load condition, and any other transfer resource then is provided with described transmission bearer on described any other transfer resource in low load condition,
Otherwise, rejecting said request.
7. radio circuit as claimed in claim 6, wherein said transfer resource comprise the throughput or the bandwidth of channel.
8. radio circuit as claimed in claim 7, if wherein the average measurement utilance of described bandwidth to duration of being longer than predetermined time interval less than threshold value, then associated transfer resource is regarded as in described low load condition.
9. radio circuit as claimed in claim 7, wherein a plurality of users are assigned to a plurality of threshold values respectively, and for each of described user, if the average measurement utilance of described bandwidth to duration of being longer than predetermined time interval less than the threshold value of being assigned, then associated transfer resource is regarded as in described low load condition.
10. equipment that is used in the radio circuit allocation of transmission resources comprises:
Be used to receive the parts to the request that the transmission bearer corresponding with the transmission COS is set, described transmission COS is related with one of described transfer resource;
If if be used for associated transfer resource at low load condition described transmission bearer is being set on the associated transfer resource or associated transfer resource in low load condition and other transfer resource in low load condition then the parts of described transmission bearer are set on described other transfer resource.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2008/002144 WO2010075638A1 (en) | 2008-12-31 | 2008-12-31 | Method for resource allocation in a communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561368A (en) * | 2014-09-30 | 2015-04-29 | 浙江理工大学 | Multiple real-time fluorescent quantative PCR rapid diagnosis kit for six porcine viruses |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3175669B1 (en) * | 2014-08-01 | 2019-10-30 | Empire Technology Development LLC | Adaptive communication resource allocation in a wireless network |
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|---|---|---|---|---|
| US6529497B1 (en) * | 1998-04-30 | 2003-03-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel allocation and release for packet data services |
| CN1443431A (en) * | 2000-05-22 | 2003-09-17 | 艾利森电话股份有限公司 | Combining differing transport technologies in telecomunications system |
| CN1571317A (en) * | 2003-07-25 | 2005-01-26 | 华为技术有限公司 | Transmission layer resource distributing method for wireless network controller |
| CN1728870A (en) * | 2004-07-31 | 2006-02-01 | 华为技术有限公司 | Method for assigning transmission resource in transmission layer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5761621A (en) * | 1993-12-15 | 1998-06-02 | Spectrum Information Technologies, Inc. | Apparatus and methods for networking omni-modal radio devices |
| US7471654B2 (en) * | 2004-12-29 | 2008-12-30 | Alcatel-Lucent Usa Inc. | Channel assignment based on service type and wireless communication environment |
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- 2008-12-31 CN CN2008801326167A patent/CN102273297A/en active Pending
- 2008-12-31 WO PCT/CN2008/002144 patent/WO2010075638A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529497B1 (en) * | 1998-04-30 | 2003-03-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Channel allocation and release for packet data services |
| CN1443431A (en) * | 2000-05-22 | 2003-09-17 | 艾利森电话股份有限公司 | Combining differing transport technologies in telecomunications system |
| CN1571317A (en) * | 2003-07-25 | 2005-01-26 | 华为技术有限公司 | Transmission layer resource distributing method for wireless network controller |
| CN1728870A (en) * | 2004-07-31 | 2006-02-01 | 华为技术有限公司 | Method for assigning transmission resource in transmission layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561368A (en) * | 2014-09-30 | 2015-04-29 | 浙江理工大学 | Multiple real-time fluorescent quantative PCR rapid diagnosis kit for six porcine viruses |
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| WO2010075638A1 (en) | 2010-07-08 |
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Application publication date: 20111207 |