CN1263242C - Transmission channel treating resource managment method - Google Patents

Abstract

The present invention discloses a management method for processing resources of transmission channels in the field of mobile communication. The method comprises the steps: (1) determining a transmission format to be actually tested, and selecting various transmission formats of transmission channels of a typical service; (2) determining the resource consumption coefficient of a typical transmission format with an experimental method, and establishing a transmission format resource consumption table; (3) using the transmission format resource consumption table when a system actually runs. The method put forwards by the present invention overcomes the disadvantage that the existing resource management methods mainly aim at the processing resources of physical channels. The method of the present invention is capable of accurately estimating processing resources, and has high resource management efficiency. Consequently, the method effectively adapts the dynamic multivariant condition of the processing load of the transmission channels in WCDMA systems, keeps the reasonable effective management of equipment resources and simultaneously ensures the stability of equipment.

Description

Transmission channel is handled the management method of resource

Technical field:

The present invention relates to WCDMA access system (WCDMA, Wideband CodeDivision Multiple Access) transmission channel (Transport Channel) is handled the management and the distribution method of resource in, relate in particular to the management method of handling resource at the transmission channel of Node B (Node B) device interior, can be used for the management method that Frame Protocol FP (FrameProtocol) handles resource simultaneously.

Background technology:

Expansion day by day along with mobile communcations system range of application in social every field, people are also more and more higher for the requirement of mobile communcations system, from early stage analog communication technology, develop into the digital communication technology of present voice-over signal, then towards the third generation mobile system development of data service.In a such evolution, without doubt, the overall performance of mobile communcations system and operating efficiency all will be closely bound up with the service quality of system, and in wireless telecommunication system, effective management of channel processing resource and divide the pairing mobile communcations system core---base station system whole efficiency and performance are all extremely important.In second generation cellular system, because mainly be voice service, and service rate relative fixed, so the algorithm of channel resource allocation mainly is the use of considering physical channel, also can be described as main consideration number of users, because treatable number of users has also just determined the data-handling capacity and the resource operating position of system.And in the WCDMA system, owing to need to support the professional and multiple mixed service of multiple speed and variable bit rate, under these circumstances, simple consideration physical channel is handled resource many times can not satisfy reasonable resources distribution requirement, the angle that also needs to handle resource from transmission channel is taken all factors into consideration, and could realize the effective management of device resource and the stability of system.According to the WCDMA system protocol, a transmission channel can have multiple transformat TF (Transport Format), and also can transmit the multiplexing channel simultaneously on a physical channel, like this when Resources allocation, will consider the distribution of the processing resource of multiplexing channel on the physical channel, and still find no at present the multiplexing channel processing resource is distributed and manage in the pass on physical channel method, still continue to use the simple consideration physical channel resources distribution method of second generation cellular system, can't adapt at a high speed, the actual demand of mixed service, thus bring device resource effectively to manage, the shortcoming of stability of a system difference.

Summary of the invention:

The objective of the invention is to overcome prior art effectively management equipment resource, stability of a system difference and the low shortcoming of resource utilization, in the hope of a kind of effectively management equipment resource being provided and guaranteeing that simultaneously the transmission channel of stabilization of equipment performance handles the management method of resource.

For achieving the above object, the present invention proposes the management method that a kind of transmission channel is handled resource, it is characterized in that, may further comprise the steps:

The first step: determine the transformat to carry out actual test, choose the various transmission channel forms of typical services;

(1) chooses transmission channel under the typical type of service;

(2) the transformat TF of extraction transmission channel;

(3) merge redundant TF;

(4) TF is lined up 8 formations according to TTI (Transmission Time Interval, Transmission TimeInterval) parameter;

(5) TBSS (transport block set size Transport Block SetSize) is pressed in each TTI formation;

Second step: method is determined the resource consumption coefficient of typical transport formats by experiment, sets up transport format resource and consumes form;

(1) processor occupation proportion C _%Be provided with;

(2) the set handling device is used for the total resources C of Channel Processing _Cpu

(3) each TF in each formation that obtains in the first step is determined its resource consumption coefficient:

(a) selected TFi;

(b) single transmission channel of configuration and transformat are joined the numerical value for TFi, constantly increase number of users and reach C up to processor utilization _%, be recorded in the channel quantity N under this TFi this moment _TFi, calculate the consumption coefficient C under this TFi _TFi=C _Cpu/ N _TFi

(c) with the resource consumption coefficient C of TFi _TFiBe recorded in the corresponding information territory at the TFi place in the resource consumption form, for inquiry;

The 3rd step: when system's actual motion, use transport format resource to consume form;

(1) application of resource: when the new channel of user applies, request channel is handled resource, finds out up maximum tfc TFC respectively _{Max_ul}(ul:Uplink is up, Transport Format Combine) and descending maximum tfc TFC _{Max_dl}(dl:Downlink is descending);

(a) transformat of all transmission channels among the maximum TFC of deciphering obtains TTI parameter and TBSS parameter (TTI in the transformat ₁, TBSS ₁), (TTI ₂, TBSS ₂) ... (TTI _n, TBSS _n), establishing number of transport formats is n;

(b) the TTI formation in the resource consumption form that will search according to the difference of TTI parameter and up-downgoing decision each transformat;

(c) in the TTI formation, search the pairing TBSSi of transformat TF (i), if in the TTI formation, find an element j, satisfy TBSSj=TBSSi, then the resource consumption parameters C of transformat TF (i) _{TF (i)}=C _TFj, C _TFjResource consumption coefficient for the element j correspondence in the form; If the TBSS of neither one element equals TBSSi in the formation, then in formation, find element j, make TBSSj in formation near the value of TBSSi, the resource consumption parameters C of transformat TF (i) _{TF (i)}=C _TFj* (TBSSi/TBSSj);

(d) all transport format resource are consumed the parameter summation $C_{\mathrm{TF}\_\mathrm{all}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{C}_{\mathrm{TF}\left(i\right)};$

(e) operation of above (a) to (d) reply up-downgoing is carried out respectively, then the addition of up-downgoing resource consumption parameter is just obtained total resource consumption parameter: C _Service=up C _{TFa_all}+ descending C _{TF_all}

(f) compare C _ServiceWith current processor available resources C _AvailabilityIf, C _Availability＞C _Service, then expression has enough resources can handle application this time, continue, otherwise the expression processor resource is not enough the application failure;

(g) from current available processors resource, deduct the resource value that this time consumes: C _Availability=C _Availability-C _Service, and record C _ServiceIn the record of correlated channels, use during for release;

(2) release of resource: when user's erasure channel, recycling resource: C _Availability=C _Availability+ C _Service

Method proposed by the invention overcomes the shortcoming that is primarily aimed at physical channel processing resource in the existing resource management method, set up resource consumption model more accurately according to actual channel data traffic characteristics, transmission channel is handled the method that resource is distributed, it is more accurate to accomplish the estimation of handling resource, and the efficient of resource management is higher.Handle dynamically changeable situation of load thereby effectively adapt in the WCDMA system transmission channel, keep the stability of the equipment that rationally effectively guarantees management time of device resource.

Description of drawings:

Fig. 1 is a transmission channel method for managing processing resources flow chart of the present invention.

Fig. 2 is the process chart of the method for the invention first step.

Fig. 3 is the method for the invention process chart in second step.

Fig. 4 is the method for the invention process chart in the 3rd step.

Fig. 5 is the transport format resource consumption schematic diagram as this method embodiment.

Embodiment:

Below in conjunction with the drawings and specific embodiments the method for the invention being done one specifies.

The present invention in fact is the distribution that is primarily aimed at the NodeB internal physical channel channel processing resource in the third generation mobile system, its basic skills is exactly to utilize a maximum tfc TFC on the physical channel to come that transmission channel is handled resource to carry out maximum estimated, and the resource of each transmission channel estimates to be based on the resource consumption situation of transformat TF.Because transmission channel is handled and is all finished by non-hardware mode, generally speaking, handle the data traffic that how much depends on of resource, flow is big more, and it is many more to handle the big more resource needed of load.It is also relevant with quantity of data packets to handle load simultaneously, under the condition that data traffic equates substantially, packet number many more (that is to say that each packet size is more little), required processing resource is many more, this is because a plurality of packets can cause more interruption, and interrupting can the significant processing burden that increases processor.So,, just consider from data traffic and two main aspects of packet number to the estimation of transmission channel processing resource.

In the WCDMA system, the data characteristic of transmission channel embodies by transformat TF, comprise a lot of parameters in the transformat, two parameters wherein can embody the characteristic of our needed data traffic and packet number, and these two parameters are: Transmission Time Interval TTI and transport block set size TBSS.Transmission Time Interval is represented the gap size that data block is transmitted, and transport block set size is then represented the size of data block.These two parameters of understanding each transformat of transmission channel just can be known the peak-data flow and the number of packet in a period of time on this channel.Can choose the transformat TF of some typical transmission channels, the pairing processing load of these transformats is carried out actual test, obtain under these transformats, handling the consumption situation of resource, set up a form according to the data of test then based on the resource consumption of transformat.During system's actual motion, to relating to the operation of transmission channel, the conditions of demand of handling resource are analyzed estimation according to transformat, apply for, revise or operation such as release handling resource.

Below the method for the invention is made a specific description in conjunction with the accompanying drawings.

The first step: definite transformat that will carry out actual test: need the transformat of test to determine according to the practical business demand:

A) choose transmission channel under the typical type of service: so-called typical type of service just is meant some business of having used in reality, such as 12.2Kbit/s business, the 64Kbit/s business, the 144Kbit/s business, the 384Kbit/s business, and some typical mixed services or the like, the value that can adopt 3GPP (3rd Generation PartnershipProject) to advise.The principle of specifically choosing is with professional relevant, some are arranged is 3GPP standard recommendation, some can be according to the increase in demand of operator, just this selection result can become, such as operator wants to release the higher business of some speed after network operation a period of time, just can improve the resource consumption model by corresponding increase transmission channel kinds, but this is optional, because the method for the invention can be estimated to approach like closer to emerging transformat, unless the use that new business is a large amount of and frequent, approximate evaluation can not be satisfied the target of accurate estimation, has only this situation just to need to upgrade.Be recommended value at present basically in the transmission channel under choosing typical type of service at the beginning according to 3GPP.

B) the transformat TF of extraction transmission channel: each transmission channel can have multiple transformat, is called transmission format set TFS (Transport Format Set), and TFS is the branch up-downgoing, and this method also is the up-downgoing separate processes to the processing of TFS.Extract the transformat TF of each transmission channel from TFS, TBSS equals in 0 be not included in.

C) the TF set that obtains the redundant TF:b of merging) has the TTI parameter and the TBSS parameter is duplicate, and just their data traffic characteristic is the same, need be merged into one to this TF.

D) TF is lined up 8 formations according to the TTI parameter: the TTI parameter has 4 kinds of situations (10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds), and the up-downgoing separate computations has 8 formations.The size of TTI is the 3GPP standard code, has only 4 kinds of values, and up-downgoing is separately calculated with regard to 8 formations, uses all TTI parameters in the method, so must be 8 formations.

E) each TTI formation is carried out ascending sort by the TBSS size.

Second step: experimental method is determined the resource consumption coefficient of transformat, sets up transport format resource and consumes form,

A) processor occupation proportion C _%Be provided with: concerning the processor of handling transmission channel, the shared resource of Channel Processing is the part of entire process device resource, the processing of other parts also will take the part resource, processing of picture Operation and Maintenance, control information or the like, and the usage ratio of resource is dynamic change, here need to Channel Processing can with the processor ratio be provided with, this is an empirical value, we can set C generally speaking _%=70%.

B) the set handling device is used for the total resources C of Channel Processing _Cpu: establish c _PuIt is a constant.

C) each TF in each formation that obtains in the first step is determined its resource consumption coefficient:

1) selected TFi.

2) operation transmission channel handling procedure on a slice processor only disposes single transmission channel and transformat and joins numerical value for TFi, constantly increases number of users, and just transmission channel quantity (transformat TFi is constant) reaches C up to processor utilization _%, this moment recording user quantity, the channel quantity N under this TFi just _TFi, calculate the consumption coefficient C under this TFi _TFi=C _Cpu/ N _TFi

3) with the resource consumption coefficient C of TFi _TFiBe recorded in the corresponding information territory at the TFi place in the resource consumption form, for inquiry.Resource consumption form legend is seen Fig. 5.

The 3rd step: the use of resource consumption form

A) application of resource: when the new channel of user applies, just need the application of channel processing resource, according to the signaling protocol between radio network controller (RNC) in the WCDMA system (Radio NetworkController) and the NodeB, up-downgoing transmission format composite set TFCS (Transport Format Combine Set) in can controlled information finds out up maximum tfc TFC respectively _{Max_ul}(ul:Uplink is up) and descending maximum tfc TFC _{Max_dl}(dl:Downlink is descending), the implication of maximum TFC are the TFC of corresponding maximum processing flow, also just corresponding maximum resource consumption.

1) transformat of all transmission channels among the maximum TFC of deciphering obtains TTI parameter and TBSS parameter (TTI in the transformat ₁, TBSS ₁), (TTI ₂, TBSS ₂) ... (TTI _n, TBSS _n), establishing number of transport formats is n.

2) the TTI formation in the resource consumption form that will search according to the difference of TTI parameter and up-downgoing decision each transformat.

3) in the TTI formation, search the pairing TBSSi of transformat TF (i) (i represents the index of some transformats among the maximum TFC), if in the TTI formation, find an element j, satisfy TBSSj=TBSSi, then the resource consumption parameters C of transformat TF (i) _{TF (i)}=C _TFj, C _TFjResource consumption coefficient for the element j correspondence in the form.If the TBSS of neither one element equals TBSSi in the formation, then need to convert by a certain percentage, can in formation, find element j, make TBSSj in formation near the value of TBSSi, the resource consumption parameters C of transformat TF (i) then _{TF (i)}=C _TFj* (TBSSi/TBSSj).

4) all transport format resource are consumed the parameter summation $C_{\mathrm{TF}\_\mathrm{all}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{C}_{\mathrm{TF}\left(i\right)}.$

5) above 1) to 4) operation reply up-downgoing carry out respectively, then the addition of up-downgoing resource consumption parameter is just obtained total resource consumption parameter: C _Service=up C _{TF_all}+ descending C _{TF_all}

6) compare C _ServiceWith current processor available resources C _AvailabilityIf, C _Availability＞C _Service, then expression has enough resources can handle application this time, continues 7), otherwise the expression processor resource is not enough, the application failure.

7) from current available processors resource, deduct the resource value that this time consumes, obtain up-to-date available resources, i.e. C _Availability=C _Availability-C _Service, and record C _ServiceIn the record of correlated channels, use during for release.

B) release of resource: when user's erasure channel, recycling resource: C _Availability=C _Availability+ C _Service, promptly add that with former available resources the resource of consumption obtains current available resource.

Claims (1)

1, a kind of transmission channel is handled the management method of resource, it is characterized in that, may further comprise the steps:

The first step: determine the transformat to carry out actual test, choose the various transmission channel forms of typical services; May further comprise the steps:

(1) chooses transmission channel under the typical type of service;

(2) the transformat TF of extraction transmission channel;

(3) merge redundant TF;

(4) TF is lined up 8 formations according to the TTI parameter;

(5) each TTI formation is carried out ascending sort by the size of TBSS;

Second step: method is determined the resource consumption coefficient of typical transport formats by experiment, sets up transport format resource and consumes form; May further comprise the steps:

(1) processor occupation proportion C _%Be provided with;

(2) the set handling device is used for the total resources C of Channel Processing _Cpu

(3) each TF in each formation that obtains in the first step is determined its resource consumption coefficient; Comprise:

(a) selected TFi; I is the subscript of transformat TF, represents i kind transformat TF;

(b) single transmission channel of configuration and transformat are joined the numerical value for TFi, constantly increase number of users and reach C up to processor utilization _%, be recorded in the channel quantity N under this TFi this moment _TFi, calculate the consumption coefficient C under this TFi _TFi=C _Cpu/ N _TFi

(c) with the resource consumption coefficient C of TFi _TFiBe recorded in the corresponding information territory at the TFi place in the resource consumption form, for inquiry

The 3rd step: when system's actual motion, use transport format resource to consume form,

(1) application of resource: when the new channel of user applies, request channel is handled resource, finds out up maximum tfc TFC respectively _{Max_ul}, and descending maximum tfc TFC _{Max_dl}May further comprise the steps:

(a) transformat of all transmission channels among the maximum TFC of deciphering obtains TTI parameter and TBSS parameter in the transformat, and establishing number of transport formats is n;

(b) the TTI formation in the resource consumption form that will search according to the difference of TTI parameter and up-downgoing decision each transformat;

(c) in the TTI formation, search the pairing TBSSi of transformat TFi,, satisfy TBSSj=TBSSi, then the resource consumption parameters C of transformat TFi if in the TTI formation, find an element j _{TF (i)}=C _TFj, C _TFiResource consumption coefficient for the element j correspondence in the form; If the TBSS of neither one element equals TBSSi in the formation, then in formation, find element j, make TBSSj in formation near the value of TBSSi, the resource consumption parameters C of transformat TFi _{TF (i)}=C _TFj* (TBSSi/TBSSj), wherein i is the subscript of transformat, represents transformat among the i;

(d) all transport format resource are consumed the parameter summation $C_{\mathrm{TF}\_\mathrm{all}}=\underset{i=1}{\overset{n}{\mathrm{\Σ}}}{C}_{\mathrm{TF}\left(i\right)};$

(e) operation of above (a) to (d) reply up-downgoing is carried out respectively, then the addition of up-downgoing resource consumption parameter is just obtained total resource consumption parameter: C _Service=up C _{TF_all}+ descending C _{TF_all}

(f) compare C _ServiceWith current processor available resources C _AvailabilityIf, C _Availability＞C _Service, then expression has enough resources can handle application this time, step below continuing to carry out, otherwise the expression processor resource is not enough, the application failure;

(g) from current available processors resource, deduct the resource value that this time consumes, obtain up-to-date available resources, and the C of record correlated channels _Service, use during for release;

(2) release of resource: when user's erasure channel, the recycling resource: promptly former available resources add that the resource of consumption obtains current available resources.

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