CN102083140B - Method and device for balanced configuration of wireless channel - Google Patents
Method and device for balanced configuration of wireless channel Download PDFInfo
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- CN102083140B CN102083140B CN200910224016.XA CN200910224016A CN102083140B CN 102083140 B CN102083140 B CN 102083140B CN 200910224016 A CN200910224016 A CN 200910224016A CN 102083140 B CN102083140 B CN 102083140B
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Abstract
The embodiment of the invention discloses a method for balanced configuration of a wireless channel, comprising the following steps of: judging whether TCH (TrafficCHannel) resource balanced configuration is necessary to be performed in a cell or between cells; and performing balanced configuration on corresponding TCH resource according to the judging result. In the method, a new computing method for cell resource estimation and resource configuration is provided under a condition of comprehensively considering data service traffic and half rate traffic, so that an index can reflect service condition of network practical resource more accurately.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of equilibrium allocation method and device of wireless channel.
Background technology
GSM (Global System for Mobile Communications, global system for mobile communications)/GPRS (General Packet Radio Service, GPRS) in network, the shared Radio Resource of voice-and-data business mainly contains CCCH (Common Control Physical Channel, Common Control Channel) resource, TCH (Traffic Channel, Traffic Channel) resource etc.; And data service itself also has the available TCH resource that dissimilar PDCH (Packet Data Channel, Packet Data Channel) is shared.Wherein, CCCH is the two-way control channel of a point-to-multipoint, at calling phase, transmission link connects needed control signal and information, wherein be divided into again: PCH (PagingChannel, paging channel), for transmitting the information of base station calling travelling carriage; RACH (Random AccessChannel, Random Access Channel), while networking for travelling carriage application, sends networking solicited message to base station; AGCH (Access Granted Channel, Access granted Channel AGCH), when call proceeding starts, sends the signaling of distributing Dedicated Control Channel for base station to travelling carriage.TCH is for transmitting user's speech and the channel of data service, can being divided into circuit-switched channel and exchanges data channel according to the different business channel of exchanged form; Difference according to transmission rate can be divided into full speed channel and half-rate channel, and the speed of gsm system full speed channel is 13kbit/s, and the speed of half-rate channel is 6.5kbit/s.
Existing channel resource analysis and distribute the congestion situation that principle is mainly considered speech business rationally, less consideration voice, resource analysis and the equilibrium that data service combines.
Along with the development of mobile network's new business, what on mobile network, carry not only has a speech business, also have data service, and the occupation proportion of data service is increasing.Like this, original the channel configuration mode of considering speech business need to be done some adjustment.Meanwhile, the use of half rate is also calculated and has been increased complexity voice telephone traffic amount.
Realize the equilibrium of voice, data service, just must reasonable disposition share Radio Resource, consider to meet the qualifications of dissimilar voice-and-data business demand to Radio Resource.And in prior art, there is no this type of solution.
Summary of the invention
The embodiment of the present invention provides a kind of equilibrium allocation method and device of wireless channel, under the different evaluation criterias of GSM/GPRS voice-over-net, data service resource requirement, realizes voice, data resource is distributed rationally.
The embodiment of the present invention provides a kind of equilibrium allocation method of wireless channel, comprises the following steps:
Judge whether to carry out in Nei Huo minizone, community the configuration of Traffic Channel TCH resources balance;
According to described judged result, corresponding TCH resource is carried out to equilibrium allocation.
Preferably, in Dang Dui community during forward packet data channel FPDCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to need to increase or reduce FPDCH resource;
When needs increase FPDCH resource, determine and increase FPDCH resource quantity, and increase FPDCH resource according to described quantity;
When needs reduce FPDCH resource, determine and reduce FPDCH resource quantity, and reduce FPDCH resource according to described quantity.
Preferably, described judgement need to increase or reduce FPDCH resource, specifically comprises:
Voice channel congestion ratio is less than the first voice congestion threshold value, and descending TBF is while setting up mortality > the first mortality threshold value, need to increase FPDCH resource; Or
Voice channel congestion ratio > the second voice congestion threshold value, or descending PDCH resource utilization < first resource utilance threshold value, need to reduce FPDCH resource.
Preferably, described definite increase FPDCH resource quantity, specifically comprises:
FPDCH_ADD＝FPDCH_OLD*MAX(Share_epdch/6-1，0)
Wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
Preferably, described definite minimizing FPDCH resource quantity, specifically comprises:
FPDCH_DEL＝MAX(FPDCH_OLD*(1-Share_epdch/6)，0)
Wherein, FPDCH_DEL represents to reduce the number of FPDCH, and FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
Preferably, while strengthening Packet Data Channel E-PDCH resources balance in Dang Dui community, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judging whether to increase E-PDCH resource;
When needs increase E-PDCH resource, determine and increase E-PDCH resource quantity, and increase E-PDCH resource according to described quantity.
Preferably, describedly need to increase E-PDCH resource, specifically comprise:
Descending E-PDCH Channel Sharing coefficient is greater than second and shares coefficient threshold value, and
On low coded system PDCH channel, transmit ratio > the first downlink traffic proportion threshold value that downlink traffic accounts for total downlink traffic; Or the descending shared coefficient of high coded system PDCH channel is greater than the more than 2.5 times of low coded system PDCH Channel Sharing coefficient.
Preferably, described definite increase E-PDCH resource quantity, specifically comprises:
NUMREQEGPRSBPC_new＝MAX(NUMREQEGPRSBPC_old，FPDCH)*Share_epdch/6
Wherein, NUMREQEGPRSBPC_new represents quantity after the increase of E-PDCH resource, and Share_epdch represents that E-PDCH shares coefficient.
Preferably, in Dang Dui community during half rate TCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to use half rate;
When voice-channel assignment mortality is greater than the first distribution mortality threshold value, use as early as possible half rate TCH resource;
When voice-channel assignment mortality is less than the second distribution mortality threshold value, and the shared traffic ratio of half rate is while being greater than the first traffic proportion threshold value, uses to the greatest extent half rate TCH resource evening.
Preferably, in Dang Dui community during ON-DEMAND PDCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to control ON-DEMAND PDCH resource;
When for speech business and data service resource contention when more, in all available TCH channels, can be used for distributing to the ratio that On-Demand PDCH channel uses is ODPDCHLIMIT;
During for half rate large percentage, the part TCH that the ratio that TCH is used is used for half rate.
Preferably, described judgement need to be controlled ON-DEMAND PDCH resource, specifically comprises:
When voice-channel assignment mortality is greater than the second distribution mortality threshold value, and descending PDCH resource utilization is less than first resource utilance threshold value; Or
When the shared traffic ratio of half rate is greater than the first shared traffic proportion threshold value, and community half rate telephone traffic is greater than the first telephone traffic threshold value, and descending PDCH resource utilization is less than first resource utilance threshold value.
Preferably, when to minizone resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
According to voice-channel assignment mortality, judge whether to carry out minizone resources balance;
Between the unbalanced community of TCH channel resource, by the parameter adjustment under IDLE pattern and under ACTIVE pattern, carry out the traffic of speech business and data service and share.
The embodiment of the present invention provides a kind of base station controller, comprising:
Judge module, need to carry out in Nei Huo minizone, community the configuration of TCH resources balance for judging whether;
Configuration module, is connected with described judge module, for corresponding TCH resource being carried out to equilibrium allocation according to described judged result.
Preferably,
Judge module, specifically for judging whether to need to increase or reduce FPDCH resource;
Configuration module, when increasing FPDCH resource when needs, determines and increases FPDCH resource quantity, and increase FPDCH resource according to described quantity; When needs reduce FPDCH resource, determine and reduce FPDCH resource quantity, and reduce FPDCH resource according to described quantity.
Preferably, described judge module comprises:
The first judgement submodule, be less than the first voice congestion threshold value, and descending TBF is while setting up mortality > the first mortality threshold value, need to increase FPDCH resource for voice channel congestion ratio;
The second judgement submodule, for voice channel congestion ratio > the second voice congestion threshold value, or descending PDCH resource utilization < first resource utilance threshold value, need to reduce FPDCH resource.
Preferably, described configuration module comprises:
The first configuration submodule, for increasing FPDCH resource quantity, FPDCH_ADD=FPDCH_OLD*MAX (Share_epdch/6-1,0), wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH;
The second configuration submodule, for determining, reduce FPDCH resource quantity FPDCH_DEL=MAX (FPDCH_OLD* (1-Share_epdch/6), 0), wherein, FPDCH_DEL represents to reduce the number of FPDCH, FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
Preferably,
Described judge module, need to increase E-PDCH resource specifically for judging whether;
Described configuration module, when increasing E-PDCH resource when needs, determines and increases E-PDCH resource quantity, and increase E-PDCH resource according to described quantity.
Preferably,
Described judge module, is greater than second specifically for descending E-PDCH Channel Sharing coefficient and shares coefficient threshold value, and on low coded system PDCH channel, transmit ratio > the first downlink traffic proportion threshold value that downlink traffic accounts for total downlink traffic; Or the descending shared coefficient of high coded system PDCH channel is greater than the more than 2.5 times of low coded system PDCH Channel Sharing coefficient;
Preferably,
Described configuration module, specifically for determining, increase E-PDCH resource quantity NUMREQEGPRSBPC_new=MAX (NUMREQEGPRSBPC_old, FPDCH) * Share_epdch/6, wherein, NUMREQEGPRSBPC_new represents quantity after the increase of E-PDCH resource, and Share_epdch represents that E-PDCH shares coefficient.
Preferably,
Described judge module, need to be used half rate specifically for judging whether;
Described configuration module, when being greater than the first distribution mortality threshold value when voice-channel assignment mortality, is used half rate TCH resource as early as possible; When voice-channel assignment mortality is less than the second distribution mortality threshold value, and the shared traffic ratio of half rate is while being greater than the first traffic proportion threshold value, uses to the greatest extent half rate TCH resource evening.
Preferably,
Whether described judge module, specifically for needing to control ON-DEMAND PDCH resource;
Described configuration module, specifically for when for speech business and data service resource contention when more, in all available TCH channels, can be used for distributing to the ratio that On-Demand PDCH channel uses is ODPDCHLIMIT; During for half rate large percentage, the part TCH that the ratio that TCH is used is used for half rate.
Preferably,
Described judge module, need to carry out minizone resources balance specifically for judging whether according to voice-channel assignment mortality;
Described configuration module, specifically between the unbalanced community of TCH channel resource, by the parameter adjustment under IDLE pattern and under ACTIVE pattern, carries out the traffic of speech business and data service and shares.
Compared with prior art, the present invention has the following advantages:
In the present invention, in the situation that considering data service telephone traffic and half rate telephone traffic, to the local resource assessment making new advances and the computational methods of resource distribution, make index reflect more accurately the service condition of network real resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the layer of structure figure of GSM/GPRS network in the embodiment of the present invention;
Fig. 2 is that in the embodiment of the present invention, BSC carries out equilibrium allocation flow chart to FPDCH resource;
Fig. 3 is the schematic diagram that increases FPDCH number in the embodiment of the present invention;
Fig. 4 is E-PDCH resources balance configuration flow figure in the embodiment of the present invention;
Fig. 5 increases E-PDCH number of resources schematic diagram in the embodiment of the present invention;
Fig. 6 is the equilibrium allocation flow chart that in the embodiment of the present invention, BSC carries out half rate TCH resource;
Fig. 7 is that in the embodiment of the present invention, half rate thresholding amplification subtracts schematic diagram;
Fig. 8 is that the ON-DEMAND PDCH resource in embodiment of the present invention ZhongBSCDui community is carried out equilibrium allocation flow chart;
Fig. 9 is that in the embodiment of the present invention, a kind of BSC carries out TCH resources balance configuration flow figure in minizone;
Figure 10 is a kind of base station controller structure chart in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is embodiment of the present invention part embodiment, rather than whole embodiment.Embodiment based in the embodiment of the present invention, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of embodiment of the present invention protection.
In the embodiment of the present invention, according to the layer of structure refinement of GSM/GPRS network, go out the equalization algorithm of heterogeneous networks resource.As shown in Figure 1, concrete equilibrium allocation algorithm is refined as BSC (Base StationController, base station controller) level resources balance placement algorithm, intra-cell resource equilibrium allocation algorithm, minizone resources balance placement algorithm.Wherein intra-cell resource configuration goes out equilibrium allocation algorithm from the further refinement of angle of the FPDCH (forward packet data channel) in community, E-PDCH, half rate TCH, On-Demand PDCH channel resource.Under the configuration of minizone resources balance configuration reselecting parameters from IDLE pattern and ACTIVE pattern, switch the further refinement of parameter configuration angle and go out equilibrium allocation algorithm.
(1) TCH resources balance algorithm in community
BSC is according to traffic model features different in community, adopt corresponding resource distribution principle, apply different resources balance allocation formula, draw equilibrium allocation algorithm, in community, the TCH resource such as FPDCH, E-PDCH, half rate TCH, On-Demand PDCH is adjusted, to promote the overall performance of community voice, data service.
1, BSC carries out equilibrium allocation to FPDCH resource.Wherein, FPDCH is the static PDCH resource in data service, is the TCH resource that in community, speech business can not take.The equilibrium allocation of FPDCH be the primary demand that meets data service user be prerequisite, as far as possible effectively utilize FPDCH resource.Concrete equilibrium allocation process as shown in Figure 1, comprises the following steps:
Wherein, the condition of increase FPDCH resource comprises adequate condition and necessary condition.The necessary condition that increases FPDCH resource is not produce more serious voice congestion, can use TCH a resource shrinkage, and then may cause voice congestion, so need to consider the condition that FPDCH resource increases carefully because increasing of FPDCH channel will cause voice.Generally, for example, during voice channel congestion ratio (containing switch) < the first voice congestion threshold value (1%), show not produce more serious voice congestion, and the network index of common 1 week can reflect the network operation situation of different peak interval of time, so, can be with voice channel congestion ratio (not containing the switching) < 1% of continuous 1 week as the necessary condition that increases FPDCH, this kind of situation, be the prerequisite that can increase FPDCH, can not affect speech business.Wherein, voice channel congestion ratio (not containing switching)=voice channel overflows number of times (not containing switching)/voice channel number of call attempts (not containing switching) * 100%, voice channel overflows number of times (containing switch) and refers under non-switching state that, because inadequate resource causes the unaccepted number of times of access, voice channel number of call attempts (containing switching) refers to the number of times of attempting access under non-switching state.
The adequate condition that increases FPDCH resource is that data service primary demand does not meet, for example, when descending E-PDCH shares coefficient > first and shares coefficient threshold value (8), descending TBF (Temporary Block Flow, Temporary Block Flow) possibility of setting up mortality > the first mortality threshold value (for example 20%) significantly increases, and can not meet the primary demand of data service.Equally, can with the descending E-PDCH of continuous 1 week, share coefficient > 8 as the adequate condition that increases FPDCH, needing in such cases to increase FPDCH, to meet data traffic requirement.Wherein, TBF is interim, only in data transfer procedure, just exist, MS (Mobile Station, travelling carriage) and BSS (Base Station Subsystem, base station sub-system) a kind of physical connection of the RR between (Radio Resource, Radio Resource) entity when carrying out data transmission.Wherein, descending E-PDCH shares the E-PDCH quantity of the TBF quantity/descending distribution of coefficient=descending E-PDCH carrying, the TBF quantity of descending E-PDCH carrying refers to the quantity of the Temporary Block Flow of setting up for transmission data on descending E-PDCH channel, and the E-PDCH quantity of descending distribution refers to the quantity of the E-PDCH distributing for downstream data traffic.Descending TBF sets up mortality=descending TBF and sets up total degree * 100% that failed number of times/descending TBF sets up.
Wherein, increasing FPDCH number of resources is calculated as: when descending E-PDCH shares coefficient < 6, the descending TBF of most communities sets up mortality < 5%, can be considered as meeting the primary demand of data service.Increase the process of FPDCH resource as shown in Figure 3, the number that increases FPDCH resource is:
FPDCH_ADD＝FPDCH_OLD*MAX(Share_epdch/6-1，0)
Wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.E-PDCH is CS-1～CS-4 and MCS-1～MCS-9 coded system, distributes the PDCH resource of 64kbps transfer resource.
Consider the most of terminal support of current existing network EDGE, the reusing degree on most of community E-PDCH is more much bigger than the reusing degree on common PDCH simultaneously, therefore, from the angle of balanced PDCH channel resource, need to when increasing FPDCH, increase E-PDCH resource.
When voice congestion is serious, continuous 1 week " voice channel congestion ratio (containing switch) > the second voice congestion threshold value (for example 3%) "; Or
When PDCH resource utilization is very low, continuous 1 week descending PDCH resource utilization < first resource utilance threshold value (30%).Wherein, descending PDCH channel quantity * 100% of the descending PDCH channel quantity/configuration of descending PDCH resource utilization=take.
Reducing FPDCH number of resources calculates: for producing the congested situation of more speech business, need to accurately calculate the FPDCH quantity that needs minimizing as far as possible, meeting under the condition of the shared coefficient < 6 of descending E-PDCH, diminishbb FPDCH quantity, is calculated as follows:
FPDCH_DEL＝MAX(FPDCH_OLD*(1-Share_epdch/6)，0)
Wherein, FPDCH_DEL represents to reduce the number of FPDCH, and FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
For the low situation of PDCH resource utilization, preferably to take repeatedly to finely tune, the adjusting range that community is unit of take is 1-2 FPDCH number.
2, judge whether the configuration of E-PDCH resources balance needs to adjust:
E-PDCH adopts CS-1～CS-4 and MCS-1～MCS-9 coded system, for distributing the high coded system PDCH channel of 64kbps transfer resource.Both can, in the upper distribution of static PDCH channel (being FPDCH), also can above distribute dynamic PDCH channel (being the TCH that data service is used).The configuration of E-PDCH channel resource is mainly to reduce the reusing degree on E-PDCH channel, and it is main meeting data service primary demand.Meanwhile, can under extreme conditions at utmost guarantee the performance of data service.Detailed process as shown in Figure 4, comprises the following steps:
First condition, descending E-PDCH Channel Sharing coefficient is greater than second and shares coefficient threshold value (for example 6);
Second condition, EDGE terminal transmits ratio > the first downlink traffic proportion threshold value that downlink traffic accounts for total EDGE downlink traffic (for example 5%) on low coded system PDCH channel, or the descending shared coefficient of high coded system PDCH channel is greater than the more than 2.5 times of low coded system PDCH Channel Sharing coefficient.
NUMREQEGPRSBPC_new＝MAX(NUMREQEGPRSBPC_old，FPDCH)*Share_epdch/6
Wherein, NUMREQEGPRSBPC represents the quantity of E-PDCH resource, and Share_epdch represents that E-PDCH shares coefficient.
Wherein, in network, seldom go to reduce E-PDCH resource, because the E-PDCH resource of most communities is all higher at data service busy reusing degree, so do not add definition to reducing the condition of E-PDCH and calculating.
3, BSC carries out the equilibrium allocation of half rate TCH resource, be the access demand that meets voice user be prerequisite.The object of the equilibrium allocation of half rate TCH resource is in the situation that data service resources requirement is larger, to use as early as possible half rate, to reduce TCH resource contention, in the situation that data service resource requirement is less, used half rate evening to the greatest extent, to promote speech business performance.Carry out half rate TCH resource equilibrium allocation detailed process as shown in Figure 6, comprise the following steps:
Step 601, judges whether to use half rate, is to use as early as possible half rate, or uses half rate evening to the greatest extent;
Wherein, use as early as possible in the condition of half rate, when voice-and-data business is more to the conflict of resource occupation in GSM/GPRS network, should use as early as possible half rate.For example, when voice-channel assignment mortality > first distributes mortality threshold value (5%) under certain period, shown that this period speech business and data service are more to the conflict of resource occupation.Can be with continuous 1 week voice-channel assignment mortality > 5% as using as early as possible the condition of half rate.Wherein, the voice-channel assignment mortality=voice-channel assignment frequency of failure/voice-channel assignment total degree * 100%.
Use evening to the greatest extent in the condition of half rate, in GSM/GPRS network, voice-and-data business during the less and shared traffic large percentage of half rate, should use up use in evening half rate to the conflict of resource occupation.For example, for example, when voice-channel assignment mortality < second distributes mortality threshold value (2%) and the shared traffic ratio of half rate > the first traffic proportion threshold value (10%), shown voice-and-data business to the conflict of resource occupation the less and shared traffic large percentage of half rate.Can be with continuous 1 week voice-channel assignment mortality < 2% and the shared traffic ratio of half rate > 10% as using to the greatest extent the condition of half rate evening.Wherein, the shared traffic ratio=half rate of half rate telephone traffic/community speech business total traffic * 100%, half rate telephone traffic is to take the voice telephone traffic amount that half rate traffic channel produces.
Step 602, carries out PDCH according to the situation of using as early as possible half rate TCH resource or late to the greatest extent use half rate TCH resource and counts adjustment.
Wherein, during for half rate thresholding amplification, when in community, full rate TCH channel ratio is lower than threshold value DTHNAMR, network starts dynamic half rate function.So according to using as early as possible the condition of half rate, for the adjustment of half rate threshold value DTHNAMR need to consider data service distribute PDCH to the situation of seizing of voice TCH (as the wireless channel of community can be defined as respectively static PDCH channel, dynamically PDCH channel and voice channel, wherein dynamically PDCH channel can be set to according to BSC parameter that speech business is preferential to be used or data service is preferentially used, under the preferential condition of using of data service, when data business volume is larger, dynamically PDCH channel will be seized by data service), the situation of the dynamic PDCH number distributing.Adjusting range will be given speech business by the use " compensation " of half rate by the resource of this part dynamic PDCH quantity, thereby reduces the conflict of voice-and-data business to resource occupation.As shown in Figure 7, be calculated as follows:
DTHNAMR_new＝MIN(100％，DTHNAMR_old+(Traffic_ps-FPDCH)/Num_tch)
Wherein, Traffic_ps represents the mean allocation PDCH number of channel, and Num_tch represents available TCH total number of channels.
When half rate thresholding amount of decrease, according to the most condition of using half rate evening, for the adjustment of half rate threshold value DTHNAMR, need to deduct the situation more than needed of data service distribution PDCH.Be calculated as follows:
DTHNAMR_new＝MAX(10％，DTHNAMR_old-(Traffic_ps-FPDCH)/Num_tch)
Wherein, Traffic_ps represents the mean allocation PDCH number of channel, and Num_tch represents available TCH total number of channels.
In addition, can optimize and revise half rate thresholding timing automatic, single subdistrict or whole BSC traffic model without significant change situation under, can define Automatic Optimal and adjust the order of half rate thresholding, paying close attention to speech business performance period and focused data service feature or resource contention period, adopt different, suitable half rate threshold value respectively.
ON-DEMAND PDCH resource in 4, BSCDui community is carried out equilibrium allocation.On-DemandPDCH is the dynamic PDCH configuring in community, is the TCH resource that speech business and data service can be used, and is also " the core area " of speech business and data service conflict.The main purpose of controlling the quantity of On-Demand PDCH channel resource is exactly for fear of resource contention, reduces half rate usage ratio, fully meets resource requirement and the performance requirement of speech business, simultaneously also in order to improve the utilance of PDCH resource.Specific implementation flow process as shown in Figure 8, comprises the following steps:
In following two kinds of situations, can improve speech business performance by controlling On-Demand PDCH resource, improve PDCH resource utilization.
When speech business and data service resource contention are more, continuous 1 week voice-channel assignment mortality > second distributes mortality threshold value (for example 5%) and descending PDCH resource utilization < first resource utilance threshold value (for example 30%).
During half rate traffic large percentage, the continuous 1 week shared traffic ratio of half rate > the first shared traffic proportion threshold value (for example 10%) and community half rate telephone traffic > the first telephone traffic threshold value (for example 0.5Erl) and descending PDCH resource utilization < first resource utilance threshold value (for example 30%).Wherein, 1 user to take continuously 1 channel 1 hour be 1ERL; 1 channel is conversed 1 hour, is 1ERL.Wherein, the shared traffic ratio=half rate of half rate telephone traffic/community speech business total traffic * 100%, half rate telephone traffic is to take the voice telephone traffic amount that half rate traffic channel produces, and half rate telephone traffic is to take the voice telephone traffic amount that half rate traffic channel produces.
ODPDCHLIMIT＝[2*PSTraffic*PSUse_R+MAX(0，Num_all-Traffic_f-Traffic_h/2-2*PSTraffic*PSUse_R)-FPDCH]/Num_all
ODPDCHLIMIT＝[2*PSTraffic*PSUse_R+MAX(0，Num_all×(1-DTHNAMR-Traffic_f-Traffic_h/2-2*PSTraffic*PSUse_R)-FPDCH)/Num_all
Wherein, Traffic_f represents full rate telephone traffic, and Traffic_h represents half rate telephone traffic, and PSTraffic represents data service telephone traffic (calculating with mean allocation PDCH number), Num_all represents the available TCH number of channel, and PSUse_R represents PDCH channel resource utilance.
(2) BSC carries out the configuration of TCH resources balance in minizone, and detailed process as shown in Figure 9, comprises the following steps:
(1) adjustable parameter under IDLE pattern:
CRO (cell_reselect_offset, cell reselection adjusted value), the ACCMIN (level of the minimum access network of travelling carriage, this parameter is turned down, can improve the access level of travelling carriage, namely the border of community is dwindled, can reduce the number of users under IDLE MODE), PT (Penalty time), TO (temporarily skew), CRH (gravity treatment hysteresiss) etc., that wherein commonly use is CRO.
(2) the adjustable handoff parameter under ACTIVE pattern:
LAYER, LAYERTHR, KOFFSET, BSPWRB/BSPWRT etc., wherein that conventional is KOFFSET, and the adjustment of LAYER/LAYERTHR and BSPWRB/BSPWRT will be passed through drive test, considers actual impact.
(3) BSC equilibrium allocation
BSC level parameter TBFDLLIMIT, TBFULLIMIT, PILTIMER, DLDELAY are used for controlling the thresholding that TBF is relevant, thereby affect the demand of data service PDCH channel.Consider the equilibrium allocation of voice, data service, also need to consider these impact of BSC levels control parameter on TCH resources balance.
Generally speaking, the increase of TBFDLLIMIT, TBFULLIMIT, PILTIMER, DLDELAY, can increase the required PDCH resource of data service, improves half rate ratio.
Adopt above resources balance placement algorithm to there is higher practicality for the reasonable utilization of Internet resources.Particularly, FPDCH resources balance placement algorithm can promote up-downgoing TBF and be created as power, E-PDCH resources balance placement algorithm can reduce E-PDCH channel multiplexing degree, promote static PDCH channel performance, half rate TCH resources balance placement algorithm can meet voice, under the condition of data service primary demand, reduce as far as possible half rate usage ratio, promote network quality, On-Demand PDCH resources balance placement algorithm can rationally arrange dynamic PDCH quantity, promote voice-channel assignment success rate, reduce half rate usage ratio, promote data service utilance.
Can so that GSM/GPRS network under the environment of speech business and data service common development, balanced limited Internet resources, reduce voice, the conflict of data service to resource requirement, and half rate thresholding is rationally set, promote network quality, improve voice, data service user awareness.
The embodiment of the present invention provides a kind of base station controller, as shown in figure 10, comprising:
The first judgement submodule, is less than the first voice congestion threshold value for voice channel congestion ratio, shows not produce speech business congested, and descending TBF is while setting up mortality > the first mortality threshold value, need to increase FPDCH resource;
The second judgement submodule, for voice channel congestion ratio > the second voice congestion threshold value, or descending PDCH resource utilization < first resource utilance threshold value, need to reduce FPDCH resource.
The first configuration submodule, for increasing FPDCH resource quantity, FPDCH_ADD=FPDCH_OLD*MAX (Share_epdch/6-1,0), wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH;
The second configuration submodule, for determining, reduce FPDCH resource quantity FPDCH_DEL=MAX (FPDCH_OLD* (1-Share_epdch/6), 0), wherein, FPDCH_DEL represents to reduce the number of FPDCH, FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
Whether judge module 1010, specifically for needing to control ON-DEMAND PDCH resource;
The technical program can, by simple program development, only need a station server or be integrated in current existing network of relation Optimization Platform and can realize as a functional module.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (20)
1. an equilibrium allocation method for wireless channel, is characterized in that, comprises the following steps:
Judge whether to carry out in Nei Huo minizone, community the configuration of Traffic Channel TCH resources balance;
According to described judged result, corresponding TCH resource is carried out to equilibrium allocation;
Wherein, in Dang Dui community during forward packet data channel FPDCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to need to increase or reduce FPDCH resource;
When needs increase FPDCH resource, determine and increase FPDCH resource quantity, and increase FPDCH resource according to described quantity;
When needs reduce FPDCH resource, determine and reduce FPDCH resource quantity, and reduce FPDCH resource according to described quantity.
2. the method for claim 1, is characterized in that, described judgement need to increase or reduce FPDCH resource, specifically comprises:
Voice channel congestion ratio is less than the first voice congestion threshold value, and descending TBF is while setting up mortality > the first mortality threshold value, need to increase FPDCH resource; Or
Voice channel congestion ratio > the second voice congestion threshold value, or descending PDCH resource utilization < first resource utilance threshold value, need to reduce FPDCH resource.
3. the method for claim 1, is characterized in that, described definite increase FPDCH resource quantity, specifically comprises:
FPDCH_ADD=FPDCH_OLD*MAX（Share_epdch/6–1，0）
Wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
4. the method for claim 1, is characterized in that, described definite minimizing FPDCH resource quantity, specifically comprises:
FPDCH_DEL=MAX（FPDCH_OLD*（1-Share_epdch/6），0）
Wherein, FPDCH_DEL represents to reduce the number of FPDCH, and FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
5. the method for claim 1, is characterized in that, while strengthening Packet Data Channel E-PDCH resources balance in Dang Dui community, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judging whether to increase E-PDCH resource;
When needs increase E-PDCH resource, determine and increase E-PDCH resource quantity, and increase E-PDCH resource according to described quantity.
6. method as claimed in claim 5, is characterized in that, when following two conditions meet simultaneously, need to increase E-PDCH resource:
Condition one, descending E-PDCH Channel Sharing coefficient is greater than second and shares coefficient threshold value;
Condition two transmits ratio > the first downlink traffic proportion threshold value that downlink traffic accounts for total downlink traffic on low coded system PDCH channel; Or the descending shared coefficient of high coded system PDCH channel is greater than the more than 2.5 times of low coded system PDCH Channel Sharing coefficient.
7. method as claimed in claim 6, is characterized in that, described definite increase E-PDCH resource quantity, specifically comprises:
NUMREQEGPRSBPC_new=MAX（NUMREQEGPRSBPC_old，FPDCH）*Share_epdch/6
Wherein, NUMREQEGPRSBPC_new represents quantity after the increase of E-PDCH resource, and NUMREQEGPRSBPC_old represents the quantity of former E-PDCH resource, and FPDCH represents the quantity of FPDCH, and Share_epdch represents that E-PDCH shares coefficient.
8. the method for claim 1, is characterized in that, in Dang Dui community during half rate TCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to use half rate;
When voice-channel assignment mortality is greater than the first distribution mortality threshold value, use as early as possible half rate TCH resource;
When voice-channel assignment mortality is less than the second distribution mortality threshold value, and the shared traffic ratio of half rate is while being greater than the first traffic proportion threshold value, uses to the greatest extent half rate TCH resource evening.
9. the method for claim 1, is characterized in that, in Dang Dui community during ON-DEMAND PDCH resources balance, describedly according to judged result, corresponding TCH resource is carried out to equilibrium allocation, specifically comprises:
Judge whether to control ON-DEMAND PDCH resource;
When for speech business and data service resource contention when more, in all available TCH channels, can be used for distributing to the ratio that On-Demand PDCH channel uses is ODPDCHLIMIT;
During for half rate large percentage, the part TCH that the ratio that TCH is used is used for half rate.
10. method as claimed in claim 9, is characterized in that, described judgement need to be controlled ON-DEMAND PDCH resource, specifically comprises:
When voice-channel assignment mortality is greater than the second distribution mortality threshold value, and descending PDCH resource utilization is less than first resource utilance threshold value; Or
When the shared traffic ratio of half rate is greater than the first shared traffic proportion threshold value, and community half rate telephone traffic is greater than the first telephone traffic threshold value, and descending PDCH resource utilization is less than first resource utilance threshold value.
11. the method for claim 1, is characterized in that, when to minizone resources balance, describedly according to judged result, corresponding TCH resource are carried out to equilibrium allocation, specifically comprise:
According to voice-channel assignment mortality, judge whether to carry out minizone resources balance;
Between the unbalanced community of TCH channel resource, by the parameter adjustment under IDLE pattern and under ACTIVE pattern, carry out the traffic of speech business and data service and share.
12. 1 kinds of base station controllers, is characterized in that, comprising:
Judge module, need to carry out in Nei Huo minizone, community the configuration of TCH resources balance for judging whether;
Configuration module, is connected with described judge module, for corresponding TCH resource being carried out to equilibrium allocation according to described judged result;
Wherein, judge module, specifically for judging whether to need to increase or reduce FPDCH resource;
Configuration module, when increasing FPDCH resource when needs, determines and increases FPDCH resource quantity, and increase FPDCH resource according to described quantity; When needs reduce FPDCH resource, determine and reduce FPDCH resource quantity, and reduce FPDCH resource according to described quantity.
13. base station controllers as claimed in claim 12, is characterized in that, described judge module comprises:
The first judgement submodule, be less than the first voice congestion threshold value, and descending TBF is while setting up mortality > the first mortality threshold value, need to increase FPDCH resource for voice channel congestion ratio;
The second judgement submodule, for voice channel congestion ratio > the second voice congestion threshold value, or descending PDCH resource utilization < first resource utilance threshold value, need to reduce FPDCH resource.
14. base station controllers as claimed in claim 12, is characterized in that, described configuration module comprises:
The first configuration submodule, for increasing FPDCH resource quantity, FPDCH_ADD=FPDCH_OLD*MAX(Share_epdch/6 – 1,0), wherein, FPDCH_ADD represents to increase the number of FPDCH, rounds up; FPDCH_OLD represents that former FPDCH arranges; Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH;
The second configuration submodule, for determining, reduce FPDCH resource quantity FPDCH_DEL=MAX(FPDCH_OLD*(1-Share_epdch/6), 0), wherein, FPDCH_DEL represents to reduce the number of FPDCH, FPDCH_OLD represents that former FPDCH arranges, and Share_epdch represents the average coefficient of sharing of former configurating downlink E-PDCH.
15. base station controllers as claimed in claim 12, is characterized in that,
Described judge module, need to increase E-PDCH resource specifically for judging whether;
Described configuration module, when increasing E-PDCH resource when needs, determines and increases E-PDCH resource quantity, and increase E-PDCH resource according to described quantity.
16. base station controllers as claimed in claim 15, is characterized in that,
Described judge module, specifically for when following two conditions meet simultaneously, judge and need to increase E-PDCH resource: condition one, descending E-PDCH Channel Sharing coefficient is greater than second and shares coefficient threshold value; Condition two, transmits ratio > the first downlink traffic proportion threshold value that downlink traffic accounts for total downlink traffic on low coded system PDCH channel; Or the descending shared coefficient of high coded system PDCH channel is greater than the more than 2.5 times of low coded system PDCH Channel Sharing coefficient.
17. base station controllers as claimed in claim 15, is characterized in that,
Described configuration module, specifically for determining, increase E-PDCH resource quantity NUMREQEGPRSBPC_new=MAX(NUMREQEGPRSBPC_old, FPDCH) * Share_epdch/6, wherein, NUMREQEGPRSBPC_new represents quantity after the increase of E-PDCH resource, NUMREQEGPRSBPC_old represents the quantity of former E-PDCH resource, and FPDCH represents the quantity of FPDCH, and Share_epdch represents that E-PDCH shares coefficient.
18. base station controllers as claimed in claim 12, is characterized in that,
Described judge module, need to be used half rate specifically for judging whether;
Described configuration module, when being greater than the first distribution mortality threshold value when voice-channel assignment mortality, is used half rate TCH resource as early as possible; When voice-channel assignment mortality is less than the second distribution mortality threshold value, and the shared traffic ratio of half rate is while being greater than the first traffic proportion threshold value, uses to the greatest extent half rate TCH resource evening.
19. base station controllers as claimed in claim 11, is characterized in that,
Whether described judge module, specifically for needing to control ON-DEMAND PDCH resource;
Described configuration module, specifically for when for speech business and data service resource contention when more, in all available TCH channels, can be used for distributing to the ratio that On-Demand PDCH channel uses is ODPDCHLIMIT; During for half rate large percentage, the part TCH that the ratio that TCH is used is used for half rate.
20. base station controllers as claimed in claim 11, is characterized in that,
Described judge module, need to carry out minizone resources balance specifically for judging whether according to voice-channel assignment mortality;
Described configuration module, specifically between the unbalanced community of TCH channel resource, by the parameter adjustment under IDLE pattern and under ACTIVE pattern, carries out the traffic of speech business and data service and shares.
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| CN103187064B (en) * | 2011-12-30 | 2015-04-22 | 中国移动通信集团北京有限公司 | Method and device of confirming speech coding modes |
| CN103313282B (en) * | 2012-03-15 | 2016-01-20 | 中国移动通信集团江苏有限公司 | PDCH channel parameter regulation method and device |
| CN103906241B (en) * | 2012-12-24 | 2017-06-20 | 中国移动通信集团天津有限公司 | A kind of method and device for carrying out channel resource allocation |
| CN103906136B (en) * | 2012-12-26 | 2018-01-30 | 中国移动通信集团内蒙古有限公司 | A kind of data service traffic management and control method and apparatus |
| CN103096386B (en) * | 2013-01-21 | 2015-06-24 | 北京拓明科技有限公司 | Data business flow control method based on signaling analyzing |
| CN104284367B (en) * | 2013-07-01 | 2018-11-02 | 中国移动通信集团江苏有限公司 | A kind of method for channel allocation and device of Temporary Block Flow |
| CN104349336B (en) * | 2013-07-24 | 2018-06-26 | 中国移动通信集团广东有限公司 | A kind of wireless network voice volume of business configuration method and device |
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