CN102638895A - Method and device for distributing scheduling resources - Google Patents
Method and device for distributing scheduling resources Download PDFInfo
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- CN102638895A CN102638895A CN2012100979963A CN201210097996A CN102638895A CN 102638895 A CN102638895 A CN 102638895A CN 2012100979963 A CN2012100979963 A CN 2012100979963A CN 201210097996 A CN201210097996 A CN 201210097996A CN 102638895 A CN102638895 A CN 102638895A
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Abstract
The invention discloses a method and a device for distributing scheduling resources, which are used for optimizing client-side occupancy code resource strategies in a multiple frequency point community and improving system throughput of uplink and downlink data services. The method includes counting the number of continuous sub-frames which are not scheduled at current frequency points of client sides by the aid of a base station; monitoring code resource occupancy rate of other frequency points by the aid of the base station when the number of the continuous sub-frames which are not scheduled at current frequency points of the client sides reaches a threshold value; and performing frequency point changing and reconfiguration when the code resource occupancy rate of other frequency points is lower than a set threshold value. The code resource occupancy rate is monitored by the base station, and the code resources are distributed reasonably by the base station, so that resource distributing mode can be optimized, and throughput of the client sides is improved.
Description
Technical field
The present invention relates to the communications field, particularly a kind of scheduling resource distributing method and device.
Background technology
Under prior art; The base station to the sign indicating number resource allocation step of all clients in the cell coverage area is: at first; The base station is according to repeating query algorithm, maximum C/I (Carrier power Interferer sign; Max carrier to interference) algorithm, direct ratio fair algorithm scheduling algorithm carry out scheduling to the professional client of all request for data in the frequency; Then, resource distribution module is selected the transmission block of suitable size according to the size of client institute data amount transmitted; At last, resource distribution module can for the data allocations physical channel resources of client transmissions, finally be accomplished the distribution of client sign indicating number resource according to user's prioritization sequence.In above-mentioned assigning process; OM (Operation and Maintenance; Maintenance and operation) the module cycle is sent sign indicating number resource occupation statistical report solicited message to base station side MAC (Medium Access Control, medium access control), and the sign indicating number resources occupation rate that will add up of base station side MAC reports the OM module then; Give RNC (Radio Network Controller by the OM module with the reporting parameters of network operation state at last; And then make client obtain the sign indicating number resources occupation rate index of base station radio network controller) and OMC (Operation and Maintenance Center, operation maintenance center).
Current mobile communication adopts TD-SCDMA (Time Division Synchronized Code Division Multiple Access, TD SDMA) system more, and polygamy is changed to multi-frequency-point community during use.The client desire is used the network by mobile terminal data service; At first need send a request with the log on service to network side, network side receives client to carry out distributing an IP address for client after the application of network data service, and this client data exchange message promptly can be fixed on a H (High Speed Downlink Packet Access; The high-speed down data Packet Service) request for data is professional on the carrier wave; Because the sign indicating number resource-constrained, therefore, the client of request for data business more for a long time in the multi-frequency-point community in the base station; Current frequency can occur and not have enough sign indicating number resource allocations on the subframe of client; Thereby cause yard resource allocation unreasonable, make the continuous many subframes of some client not obtain the situation of dispatcher meeting, increase the client awaits time.
Summary of the invention
The method and apparatus that the embodiment of the invention provides a kind of scheduling resource to distribute; In order to solve in the multi-frequency-point community that exists in the prior art; The client of request for data business more for a long time; The sign indicating number resource allocation that occurs is unreasonable, and the continuous many subframes of some client are not scheduled, and prolong the problem of client awaits time.
The concrete technical scheme that the embodiment of the invention provides is following:
A kind of scheduling resource distributing method comprises:
The number of the continuous subframes that the statistics client is not scheduled at current frequency;
According to statistics, judge when continuous subframes number that said client is not scheduled on current frequency reaches predetermined threshold value, said client is dispatched to by current frequency meets on the pre-conditioned target frequency.
A kind of scheduling resource distributor comprises:
Monitoring means is used to add up the number of the continuous subframes that client is not scheduled at current frequency;
The frequency reset cell is used for according to statistics, when the number of judging the continuous subframes that said client is not scheduled on current frequency reaches predetermined threshold value, said client is dispatched to by current frequency meets on the pre-conditioned target frequency.
In embodiments of the present invention; The client of request for data business more for a long time in multi-frequency-point community; The number of the continuous subframes that statistics client in base station is not scheduled at current frequency, and according to statistics is when the number of judging the continuous subframes that client is not scheduled on current frequency reaches predetermined threshold value; Said client is dispatched to by current frequency meets on the pre-conditioned target frequency; Can effectively avoid at the professional client terminal quantity of request for data more for a long time, and it is unreasonable yard resource allocation to occur, the situation that causes the continuous many subframes of some client not to be scheduled; Therefore can reduce the stand-by period of client in carrying out the data service process, thereby reduce influence the up-downgoing data service.
Description of drawings
Fig. 1 be in the embodiment of the invention base station at multi-frequency-point community ISN resource allocation device;
Fig. 2 be in the embodiment of the invention base station at multi-frequency-point community ISN resource allocation detailed process sketch map.
Embodiment
In order to optimize the client sign indicating number resource allocation of base station at multi-frequency-point community; In the embodiment of the invention; The number of the continuous subframes that statistics client in base station is not scheduled at current frequency, and according to statistics is when the number of judging the continuous subframes that client is not scheduled on current frequency reaches predetermined threshold value; Said client is dispatched to by current frequency meets on the pre-conditioned target frequency; Can effectively avoid at the professional client terminal quantity of request for data more for a long time, and it is unreasonable yard resource allocation to occur, the situation that causes the continuous many subframes of some client not to be scheduled; Therefore optimize the strategy that client in the multi-frequency-point community takies yard resource, improved the efficient that client is carried out the up-downgoing data service.
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
Consult shown in Figure 1ly, in the embodiment of the invention, the distributor of base station client sign indicating number resource in multi-frequency-point community comprises monitoring means 10 and frequency reset cell 11, wherein,
Monitoring means 10 is used to add up the number of the continuous subframes that client is not scheduled at current frequency;
Frequency reset cell 11 is used for according to statistics, judges when continuous subframes number that said client is not scheduled on current frequency reaches predetermined threshold value, said client is dispatched to by current frequency meet on the pre-conditioned target frequency.
Based on technique scheme, to consult shown in Figure 2ly, in the embodiment of the invention, the sign indicating number resource allocation detailed process of base station in multi-frequency-point community is following:
Step 200: the base station is a plurality of client assigned code resources in the multi-frequency-point community.
In the embodiment of the invention, in multi-frequency-point community, after client is carried out the PDP activation; This client can obtain an IP address; At this moment, client just is fixed on the H carrier wave, at this moment; Sorting to the professional multi-client of request for data in the base station, and is client assigned code resource successively according to ordering.
For example, at multi-frequency-point community, sort according to time order and function; Be client a, b, c request for data business successively; Sort to client according to time sequencing equally in the base station, promptly according to client a, the order of client b, client c is carried out a yard resource allocation to multi-client.
Step 210: the number of the continuous subframes that statistics client in base station is not scheduled at current frequency.
Preferable, step 210 is accomplished the be not scheduled statistics of number of continuous subframes of client by base station side MAC.
Client is that unit carries out the up-downgoing data service with the subframe, and a subframe is divided into a plurality of time slots, and a time slot is divided into 16 code channels again, and the base station is that client assigned code resource is code channel is assigned on the subframe that client takies.
When the multi-frequency-point community client more for a long time, sorting to client according to time sequencing in the base station, and is client assigned code resource according to the sequencing queue order.Simultaneously, the number of the continuous subframes that a counters count client is not scheduled is distributed in the base station for each client.The base station is some client assigned code resources in the sequencing queue, when all subframes of said client are scheduled, and the then counter O reset of this client.At this moment, if still have unnecessary sign indicating number resource, then the base station can be the next client assigned code resource of said client; If there is not unnecessary sign indicating number resource; Then the client of all after client described in the sequencing queue will be in wait state; The situation that will exist the client subframe not to be scheduled this moment, base station assigns are given the number of the counters count of each client continuous subframes that corresponding client is not scheduled.
For example, client a, b, c are according to time order and function order SEPARATE APPLICATION data service, sort to client in the base station, and client is that multi-client carries out a yard resource allocation according to the sequencing of sequencing queue client a, client b, client c.At first, the base station is a client a assigned code resource, on all subframes that the sign indicating number resource allocation is taken to client a; The number of the continuous subframes that this client of counter a statistics of client a is not scheduled; Because there is not the subframe that is not scheduled in client a, therefore, counter a zero clearing; At this moment, still have the residue code resource, then a yard resource allocation is carried out to client b in the base station; Simultaneously, the number of the continuous subframes that the counter b of client b statistics client c is scheduled is not if there is the continuous subframes that is not scheduled in client b; Then counter b zero clearing; The base station is a client c assigned code resource simultaneously, and the number of the continuous subframes that the counter c statistics client c of client c is not scheduled is if there is the continuous subframes that is not scheduled in client b; Then counter b begins the number of the continuous subframes that counting statistics client b is not scheduled, the number of the continuous subframes that the counter c statistics client c that client c is corresponding is not scheduled.
Step 220: the base station judges according to statistics whether the number of the continuous subframes that said client is not scheduled reaches predetermined threshold value on current frequency.If said client be dispatched to by current frequency meet on the pre-conditioned target frequency; Otherwise, return step 200.
In multi-frequency-point community client more for a long time, the number of the continuous subframes that statistics client in base station is not scheduled at current frequency judges whether the number of the continuous subframes that client is not scheduled reaches the threshold value that is provided with in advance by the OM module on current frequency.For example; In embodiments of the present invention; The threshold value of the number of the continuous subframes that the OM module can client be scheduled is set to 4, then when the base station is confirmed certain client continuous 4 sub-frame are not scheduled on current frequency, can consider this client is left under order by current frequency.
The base station is according to statistics; When the number of confirming the continuous subframes that client is not scheduled on current frequency reaches predetermined threshold value; The base station is according to the sign indicating number resources occupation rate statistics of the current correspondence of other frequencies; Said client is dispatched to yard resources occupation rate by current frequency meets pre-conditioned target frequency; Comprise: the base station confirms that the number of the continuous subframes that client is not scheduled reaches predetermined threshold value on current frequency; The base station is that unit is directed against client and carries out in the process of yard resources occupation rate statistics with the frequency according to setting cycle, and the last other frequency sign indicating number resources occupation rates that obtain are confirmed the target frequency that said client is dispatched to by current frequency; The number of the continuous subframes that statistics client in base station is not scheduled at current frequency; After the base station confirms that the number of the continuous subframes that client is not scheduled reaches predetermined threshold value; Be that unit carries out yard sign indicating number resources occupation rate that the resources occupation rate statistics obtains with the frequency then, confirm the target frequency that said client is dispatched to by current frequency according to the base station.Preferable, accomplish statistics by base station side MAC to the sign indicating number resources occupation rate.
Wherein, the sign indicating number resources occupation rate is the code channel number of client shared current frequency when carrying out the up-downgoing data service and the percentage of the total code channel number of current frequency.
Step 230: the client that the base station will reach predetermined threshold value at the number of the continuous subframes that is not scheduled on the current frequency is dispatched to and meets on other pre-conditioned frequencies.
Be specially: whether the base station is further judged in other frequencies beyond the current frequency of said client exist yard resources occupation rate to be lower than the frequency of setting threshold value.If then be dispatched to said client on the target frequency that meets in other pre-conditioned frequencies by current frequency; Otherwise the sign indicating number resources occupation rate of all frequencies in the illustrative system all reaches the setting threshold value of yard resources occupation rate, then returns step 200.
Wherein, The base station is dispatched to said client and meets on the pre-conditioned target frequency from current frequency; The target frequency that client is scheduled to can be selected by RNC at random; The minimum frequency of sign indicating number resources occupation rate in other frequencies that can selected to satisfy condition by RNC is the target frequency, also can be selected from satisfy other pre-conditioned frequencies according to the priority difference of each frequency by RNC.
The base station monitors multi-frequency-point community goes out the sign indicating number resources occupation rate of the outer every other frequency of the current frequency of client; After detecting the frequency of sign indicating number resources occupation rate threshold value that yard resources occupation rate do not reach the OM block configuration; The base station is based on NBAP (Node-B Application Protocol; The Node-B application protocol) number of notice RNC and OMC continuous subframes that current frequency the is not scheduled client that reaches threshold value is changed frequency and is reshuffled, and simultaneously the target frequency is informed RNC.Carrying out frequency by RNC notice UE at last reshuffles.After reshuffling completion, client can be carried out the up-downgoing data service at new frequency.
For example; In embodiments of the present invention; The OM module can multi-frequency-point community in the sign indicating number resources occupation rate threshold value of single frequency point be set to P; When the number of the continuous subframes that then in frequency a, is not scheduled when certain client reaches threshold value, other frequencies b, the c beyond the current frequency of client will further be judged in the base station ... In the sign indicating number resources occupation rate, if the sign indicating number resources occupation rate P among the frequency b, c, d
b＜P
c＜P
d＜P, and RNC carries out a yard resource allocation according to the minimum priority allocation principle of frequency sign indicating number resources occupation rate, and RNC carries out frequency to client and reshuffles, and then client will be configured to frequency b application up-downgoing data service.
In sum; In the embodiment of the invention, base station statistics client the be not scheduled number and each frequency sign indicating number resources occupation rate index of continuous subframes, and it is reported RNC; RNC carries out reconfiguring of multifrequency point client according to the sign indicating number occupation condition to client-requested; Increased the information interchange between base station and the RNC, taken situation, the multi-frequency-point community resource is fully used thereby optimize client resource.
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, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. a scheduling resource distributing method is characterized in that, comprising:
The number of the continuous subframes that the statistics client is not scheduled at current frequency;
According to statistics, judge when continuous subframes number that said client is not scheduled on current frequency reaches predetermined threshold value, said client is dispatched to by current frequency meets on the pre-conditioned target frequency.
2. the method for claim 1 is characterized in that, the number of the continuous subframes that said statistics client is not scheduled comprises:
At multi-frequency-point community; After client request for data business; Be to use the client assigned code resource of data service, on the subframe that the sign indicating number resource allocation is taken to client, and the number of the continuous subframes that is not scheduled according to sign indicating number resource allocation conditions statistics client.
3. the method for claim 1 is characterized in that, also comprises:
According to said statistics, when the number of the continuous subframes that the judgement client is not scheduled on current frequency does not reach predetermined threshold value, said client is remained on the current frequency.
4. method as claimed in claim 2 is characterized in that, said client is dispatched to by current frequency meet on the pre-conditioned target frequency, comprising:
According to the sign indicating number resources occupation rate of the current correspondence of said other frequencies, said client is dispatched to yard resources occupation rate by current frequency meets on the pre-conditioned target frequency.
5. method as claimed in claim 4 is characterized in that, the sign indicating number resources occupation rate of the current correspondence of said other frequencies, and for being that unit carries out in yard resources occupation rate statistic processes according to setting cycle with the frequency, the last sign indicating number resources occupation rate that obtains; Perhaps, for confirming said client after the number of the continuous subframes that is not scheduled on the current frequency reaches predetermined threshold value, be that unit carries out yard sign indicating number resources occupation rate that the resources occupation rate statistics obtains with the frequency.
6. method as claimed in claim 4 is characterized in that, said client is dispatched to by current frequency meet on the pre-conditioned target frequency, comprising:
Do not reach in each target frequency of setting threshold value in the sign indicating number resources occupation rate, target frequency of picked at random, and client is dispatched to this target frequency by current frequency; Perhaps,
Do not reach in each target frequency of setting threshold value in the sign indicating number resources occupation rate, the target frequency that the access code resources occupation rate is minimum, and client is dispatched to this target frequency by current frequency; Perhaps,
Do not reach in each target frequency of setting threshold value in the sign indicating number resources occupation rate, choose a highest target frequency of priority, and client is dispatched to this target frequency by current frequency.
7. a scheduling resource distributor is characterized in that, comprising:
Monitoring means is used to add up the number of the continuous subframes that client is not scheduled at current frequency;
The frequency reset cell is used for according to statistics, when the number of judging the continuous subframes that said client is not scheduled on current frequency reaches predetermined threshold value, said client is dispatched to by current frequency meets on the pre-conditioned target frequency.
8. device as claimed in claim 7; It is characterized in that said monitoring means specifically is used at multi-frequency-point community; After client request for data business; Be to use the client assigned code resource of data service, on the subframe that the sign indicating number resource allocation is taken to client, and the number of the continuous subframes that is not scheduled according to sign indicating number resource allocation conditions statistics client.
9. device as claimed in claim 7; It is characterized in that said frequency reset cell also is used for according to said monitoring means statistics; When the number of the continuous subframes that the judgement client is not scheduled does not reach predetermined threshold value, said client is remained on current frequency on current frequency.
10. device as claimed in claim 8; It is characterized in that; Said frequency reset cell specifically is used for the sign indicating number resources occupation rate according to the current correspondence of said other frequencies, said client is dispatched to yard resources occupation rate by current frequency meets on the pre-conditioned target frequency.
11. device as claimed in claim 10; It is characterized in that; The sign indicating number resources occupation rate of the current correspondence of said other frequencies, for monitoring means is that unit carries out in yard resources occupation rate statistic processes with the frequency according to setting cycle, the last sign indicating number resources occupation rate that obtains; Perhaps, for the frequency reset cell is confirmed said client after the number of the continuous subframes that is not scheduled on the current frequency reaches predetermined threshold value, monitoring means is that unit carries out yard sign indicating number resources occupation rate that the resources occupation rate statistics obtains with the frequency.
12. device as claimed in claim 10; It is characterized in that said frequency reset cell specifically is used for not reaching each target frequency of setting threshold value in the sign indicating number resources occupation rate; Target frequency of picked at random, and client is dispatched to this target frequency by current frequency; Perhaps do not reach in each target frequency of setting threshold value in the sign indicating number resources occupation rate, the target frequency that the access code resources occupation rate is minimum, and client is dispatched to this target frequency by current frequency; Perhaps do not reach in each target frequency of setting threshold value, choose a highest target frequency of priority, and client is dispatched to this target frequency by current frequency in the sign indicating number resources occupation rate.
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| CN103200594A (en) * | 2013-03-06 | 2013-07-10 | 大唐移动通信设备有限公司 | Statistical method and device of code resources |
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