CN108235375B - Method and device for load balancing configuration in mobile switching center pool - Google Patents
Method and device for load balancing configuration in mobile switching center pool Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and a device for load balancing configuration in MSC POOL, wherein the method comprises the following steps: acquiring user registration information of each MSC SERVER in the MSC POOL; the user registration information includes: the number of users registered in MSC SERVER for each MSC POOL, the number of CSFB users registered in MSC SERVER for each MSC POOL, and a user capacity factor corresponding to MSC SERVER for each MSC POOL; according to the user registration information, calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL; and correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the user capacity factor correction value, so that the load of each MSC SERVER is balanced again.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for load balancing configuration in a Mobile switching center POOL (MSC POOL).
Background
1. MSC POOL networking technical scheme
At present, an MSC POOL networking scheme is the most common networking mode of a Circuit Switched (CS) core network of a mobile communication network. Mechanisms for core network control nodes to work in a pool mode are specified in the Third Generation partnership project (3 GPP) R5 (3GPP TS 23.236 standard), such as mobile switching server (MSC SERVER, MSS), general packet Radio Service Support Node (SGSN), etc.; breaks the one-to-one control relationship between the prior Base Station Controller/Radio Network Controller (BSC/RNC) and the MSS. The MSC POOL technology introduces the concept of "POOL Area" (POOL Area), where multiple core network nodes form a regional POOL. Unlike the previous one-to-one control relationship between BSC/RNC and MSS, each BSC/RNC in MSC POOL can be controlled by all MSS nodes in the POOL, each MSS node equally serves the area covered by all BSC/RNC in the POOL area, and the terminal user connected to BSC/RNC can register to any MSS node in the POOL. By introducing the MSC POOL technology, a point-to-multipoint connection mode is provided, and a means for sharing network resources is achieved.
In the MSC POOL networking scheme, a non-access stratum node selection function (NNSF) network element implements a distribution function of users in the POOL. In the existing network, the NNSF network element is usually BSC/RNC; for the case that the BSC/RNC does not support the NNSF function, the Media Gateway (MGW) may also assume the function of the NNSF.
When a new subscriber enters the coverage area of the MSC POOL, the NNSF network element will randomly allocate the location update requests of the subscribers to one of MSCSERVER in the POOL group in proportion according to a pre-configured capacity factor and a load balancing principle, so that the load of each MSC SERVER in the POOL is approximately equivalent. At the same time, MSC SERVER completes the location update procedure and assigns a Temporary Mobile Subscriber Identity (TMSI) to the user, where the Network Resource Identifier (NRI) field contained in the TMSI identifies the MSC SERVER node number serving the user, indicating that the user is already registered in MSC SERVER of the pool. As the subscriber moves within the service area of the MSC POOL, it will be served by MSC SERVER corresponding to this node number until it leaves the service area of the MSC POOL. During this period, if the user has a service request, the system will distribute the traffic to the corresponding MSC SERVER for processing according to the NRI information in the TMSI carried in the request message. Here, the capacity factor is a subscriber capacity value of each MSC SERVER configured on the NNSF network element, and is generally equal to the design subscriber capacity of each MSC SERVER.
2. Circuit Switched Fallback (CSFB) networking technical scheme
Since the Long Term Evolution (LTE) Network is a pure data service Network and does not support voice services, at the beginning of building a Time Division Long Term Evolution (TD-LTE) Network, a mature Universal Mobile Telecommunications System terrestrial Radio Access Network/global System for Mobile communications and a GSM enhanced data rate Evolution Radio Access Network (UTRAN/GERAN) can be used to provide voice services using the original CS domain voice scheme, while the TD-LTE Network only processes data services. In this case, the CSFB technique is adopted, that is, when a User Equipment (UE) under LTE coverage processes a voice service, the terminal first falls back to the CS network, and processes the voice service in the CS network. Therefore, the aim of reusing the existing CS domain equipment to provide the traditional voice service for the user in the TD-LTE network is achieved.
The UE using the CSFB scheme needs to complete attachment of an Evolved Packet System (EPS) domain and a CS domain through a joint attachment process via an SGs interface between a Mobility Management Entity (MME) and a Visitor Location Register (MSC/VLR) of a mobile switching center, thereby providing a condition for using CSFB voice and short message services. The specific implementation steps are as follows:
1) after receiving a combined attach request of a CSFB user, the MME, while performing EPS attach, derives VLR information of its related CS domain, and initiates a location update request to this VLR.
2) After receiving the location update request, the VLR marks the user as having EPS attached and stores the IP address of the MME of the user, so that the VLR creates an SGs association between the VLR and the MME of the user.
3) MSC SERVER/VLR performs CS domain location update and transmits user TMSI and Location Area Identity (LAI) to MME, thereby establishing SGs association in MME.
4) The MME includes the TMSI, LAI and other information distributed to the user by the VLR in an attachment request acceptance message and sends the attachment request acceptance message to the UE, and at the moment, the joint attachment of the user is successful.
Through the above MSC POOL networking scheme and CSFB networking technical scheme, it can be seen that when one MSC POOL simultaneously starts a CSFB function, that is, when SGs interfaces are opened between 1 or more MSC/VLRs and 1 or more MMEs in the MSC POOL, there are 2 ways to select MSC SERVER for a new user entering the MSC POOL:
the first method is as follows: when the user is a normal non-CSFB user, the NNSF network element of the MSC POOL randomly allocates MSC SERVER the user to one of the POOLs according to the pre-configured capacity factor and the principle of load balancing.
The second method comprises the following steps: when the user is a CSFB user, the MME in the EPS domain deduces VLR information of its related CS domain according to a pre-configuration, and initiates a joint attach request to this VLR. After the joint attach is completed, the user finally registers on the VLR.
It can be seen that the way in which these 2 ways select MSC SERVER is completely different, way one is assigned by the NNSF network element; the second way is allocated by the MME but only to the part MSCSERVER of the POOL with which the SGs interface is opened. The following effects exist with the coexistence of 2 formulations:
1) at the earliest stage of MSC POOL networking, as the 4G-LTE service is not developed, CSFB users do not exist, and the users are completely distributed in the first mode, so that a good load balancing effect can be achieved.
2) When 4G-LTE is gradually developed and CSFB users are gradually increased, the allocation of users still takes the first mode as a main mode and the second mode as an auxiliary mode, so the load of the MSC POOL is still basically balanced, but the effect is reduced to a certain extent.
3) However, when the 4G network enters the mature period and the CSFB users rapidly increase, the proportion of users assigned by the second method greatly increases, and may even gradually exceed the proportion of users assigned by the first method. Especially after large-area commercial use of VoLTE (voice over lte) technology, because VoLTE terminals all have CSFB functions at the same time, the number of CSFB users will increase significantly. At this time, the load of a few MSC SERVER that undertake CSFB function is significantly higher than the other MSC SERVER, and the original load balancing method has tended to fail.
Therefore, in the context of a significant increase in the proportion of CSFB users, the user allocation mechanism of the MSC POOL must consider the specificity of CSFB user allocation at the same time to re-implement the load balancing of the MSC POOL.
Disclosure of Invention
In order to solve the foregoing technical problems, embodiments of the present invention are intended to provide a method and an apparatus for load balancing configuration in an MSC POOL, so that when the number of CSFB users increases, a user capacity factor of each MSC SERVER in the MSC POOL is corrected, so that the load of each MSC SERVER is balanced again.
The technical scheme of the invention is realized as follows:
the embodiment of the invention provides a method for load balancing configuration in MSC POOL, which comprises the following steps:
acquiring the user registration information of each mobile switching server MSC SERVER in the MSC POOL; the user registration information includes: the number of users registered in MSC SERVER for each MSC POOL, the number of CSFB users registered in MSC SERVER for each MSC POOL, and a user capacity factor corresponding to MSC SERVER for each MSC POOL;
calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information;
and correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the user capacity factor correction value.
In the foregoing solution, the calculating, according to the subscriber registration information, the subscriber capacity factor correction value corresponding to each MSC SERVER in the MSC POOL includes: and calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the proportion of the CSFB users in the MSC POOL to the total number of the users, the proportion of the CSFB users in each MSC SERVER to the total number of the CSFB users in the MSC POOL and the sum of the user capacity factors corresponding to each MSC SERVER in the MSC POOL.
In the foregoing solution, the calculating the user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL includes: calculating user capacity factor correction value delta C corresponding to ith MSC SERVER in MSC POOLi，ΔCi＝Si×R×ΣCi；
Wherein S isiThe ratio of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOL, R is the ratio of the CSFB users in the MSC POOL to the total number of users, Sigma CiFor the sum of the subscriber capacity factors corresponding to each MSCSERVER in the MSC POOL, i is an integer greater than 0.
In the above solution, the ratio S of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOLiThe mathematical expression of (a) is: si＝Qi/ΣQi(ii) a The mathematical expression of the proportion R of the CSFB users in the MSC POOL to the total number of the users is as follows: r ═ Σ Qi/ΣPi；
Wherein, Q isiNumber of CSFB users registered for ith MSC SERVER, PiThe number of users registered for the ith MSC SERVER in the MSC POOL.
In the foregoing solution, the correcting, according to the user capacity factor correction value, the user capacity factor corresponding to each MSCSERVER in the MSC POOL includes: calculating a corrected user capacity factor C corresponding to the ith MSC SERVER in the MSC POOLi′，Ci′＝Ci-ΔCi；
Wherein, CiA user capacity factor, Δ C, corresponding to the ith MSC SERVER in the MSC POOLiAnd taking an integer larger than 0 for the user capacity factor correction value corresponding to the ith MSC SERVER in the MSCPOOL.
The embodiment of the invention also provides a device for load balancing configuration in MSC POOL, which comprises: the device comprises an acquisition module, a calculation module and a correction module; wherein the content of the first and second substances,
an obtaining module, configured to obtain user registration information of each mobile switching server MSC SERVER in the MSC POOL; the user registration information includes: the number of users MSC SERVER registered in each MSC POOL, the number of CSFB users MSC SERVER registered in each MSC POOL, and a user capacity factor corresponding to MSC SERVER in each MSC POOL;
a calculating module, configured to calculate, according to the user registration information, a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL;
and the correction module is used for correcting the user capacity factor corresponding to each MSCSERVER in the MSC POOL according to the user capacity factor correction value.
In the foregoing solution, the calculating module is specifically configured to calculate the user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to a total sum of a proportion of CSFB users in the MSC POOL to a total number of users, a proportion of CSFB users in each MSC SERVER to a total number of CSFB users in the MSC POOL, and a user capacity factor corresponding to each MSC SERVER in the MSC POOL.
In the foregoing solution, the calculating module is specifically configured to calculate a user capacity factor correction value Δ C corresponding to the ith MSC SERVER in the MSC POOLi，ΔCi＝Si×R×ΣCi；
Wherein S isiThe ratio of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOL, R is the ratio of the CSFB users in the MSC POOL to the total number of users, Sigma CiFor the sum of the subscriber capacity factors corresponding to each MSCSERVER in the MSC POOL, i is an integer greater than 0.
In the foregoing solution, the calculating module is further configured to calculate a ratio S of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOLi，Si＝Qi/ΣQi；
The computing module is also usedCalculating the ratio R, R ═ Sigma Q of CSFB users in the MSC POOLi/ΣPi；
Wherein, Q isiNumber of CSFB users registered for ith MSC SERVER, PiThe number of users registered for the ith MSC SERVER in the MSC POOL.
In the foregoing solution, the correcting module is specifically configured to calculate a corrected user capacity factor C corresponding to the ith MSC SERVER in the MSC POOLi′，Ci′＝Ci-ΔCi；
Wherein, CiA user capacity factor, Δ C, corresponding to the ith MSC SERVER in the MSC POOLiAnd taking an integer larger than 0 for the user capacity factor correction value corresponding to the ith MSC SERVER in the MSCPOOL.
In the embodiment of the present invention, the user registration information of each mobile switching server MSC SERVER in the MSC POOL is acquired; the user registration information includes: the number of users registered in MSC SERVER for each MSC POOL, the number of CSFB users registered in MSC SERVER for each MSC POOL, and a user capacity factor corresponding to MSC SERVER for each MSC POOL; calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information; and correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the capacity factor correction value. In this way, it is achieved that as the number of CSFB users increases, the user capacity factor of each MSC SERVER in the MSC POOL is corrected so that the load of each MSC SERVER is re-balanced.
Drawings
Fig. 1 is a flowchart of a first embodiment of a method for load balancing configuration in an MSC POOL of the present invention;
fig. 2 is a flowchart of a second embodiment of a method for load balancing configuration in an MSC POOL of the present invention;
fig. 3 is a schematic diagram illustrating a load balancing configuration principle in the MSC POOL according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for load balancing configuration in an MSC POOL according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
First embodiment
Fig. 1 is a flowchart of a method for load balancing configuration in an MSC POOL according to a first embodiment of the present invention, and as shown in fig. 1, the core idea of the embodiment of the present invention is: and subtracting the equivalent capacity value occupied by the CSFB user from the initial user capacity factor corresponding to each MSC SERVER in the MSC POOL to obtain the corrected user capacity factor. In this way, the corrected user capacity factor is adopted for the non-CSFB users for redistribution, and the CSFB users still self-distribute according to the rule of the MME. When the corrected capacity factor is a certain value, the balanced distribution of the total users (non-CSFB + CSFB users) can be just realized.
The method in fig. 1 specifically includes:
step 100: the subscriber registration information for each MSC SERVER in the MSC POOL is obtained.
Here, the user registration information may include: the number of users MSC SERVER registered in each MSC POOL, the number of CSFB users registered in each MSC SERVER MSC POOL, and a user capacity factor corresponding to each MSC SERVER MSC POOL.
In actual implementation, the user registration information may be acquired through a Man-Machine access (MML) instruction interface. Specifically, firstly, an MML data acquisition instruction is issued, and secondly, the number of registered users at each MSC SERVER, the number of registered CSFB users, and a user capacity factor corresponding to each MSC SERVER are obtained from the acquired MML instruction message.
Step 101: and calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information.
Preferably, the capacity factor correction value corresponding to each MSC SERVER in the MSC POOL can be calculated according to a sum of a proportion of CSFB users in the MSC POOL to a total number of users, a proportion of CSFB users in each MSCSERVER to a total number of CSFB users in the MSC POOL, and a user capacity factor corresponding to each MSCSERVER in the MSC POOL.
In practical implementation, calculating the subscriber capacity factor correction value corresponding to each MSC SERVER in the MSC POOL may include: calculating user capacity factor correction value delta C corresponding to ith MSC SERVER in MSC POOLi，ΔCi＝Si×R×ΣCi。
Wherein S isiThe mathematical calculation formula of the ratio of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOL may be: si＝Qi/ΣQi(ii) a R is the proportion of CSFB users in the MSC POOL to the total number of users, and the mathematical formula may be: r ═ Σ Qi/ΣPi；ΣCiThe sum of the subscriber capacity factors for each MSC SERVER in MSC POOL; qiNumber of CSFB users, Sigma Q, registered for the ith MSC SERVERiThe sum of the number of CSFB users registered for each MSC SERVER; piNumber of users, sigma P, registered for the ith MSC SERVER in MSC POOLiThe sum of the number of users registered for each MSC SERVER; i is an integer greater than 0.
When the ith MSC SERVER is MSC SERVER that is not a CSFB user, the number Q of CSFB users registered in the ith MSCSERVER isi0, the ratio S of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the whole MSC POOLiIs 0.
Step 102: and correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the capacity factor correction value.
In this step, the corrected user capacity factor corresponding to the ith MSC SERVER in the MSC POOL is Ci′，Ci′＝Ci-ΔCi(ii) a Wherein, CiA user capacity factor, Δ C, corresponding to the ith MSC SERVER in the MSC POOLiAnd i is an integer larger than 0 and is a user capacity factor correction value corresponding to the ith MSC SERVER in the MSC POOL.
Second embodiment
In order to further embody the purpose of the present invention, a load balancing automatic configuration system is established on the basis of the first embodiment of the present invention, and further illustration is performed.
Fig. 2 is a flowchart of a second embodiment of a method for load balancing configuration in an MSC POOL of the present invention, the method comprising:
step 200: the load balancing auto-configuration system obtains subscriber registration information for each MSC SERVER in the MSC POOL.
Fig. 3 is a schematic diagram of a load balancing configuration principle in the MSC POOL in the embodiment of the present invention, and as shown in fig. 3, the load balancing automatic configuration system in the embodiment of the present invention can implement issuing of an MML instruction and acquisition of an instruction packet through an MML instruction interface, thereby acquiring user registration information.
In practical implementation, one MSC POOL may contain m MSC SERVER (refer to the MSC in fig. 3)1To MSCm) And n NNSF network elements (see NNSF in FIG. 3)1To NNSFn) And m and n are integers greater than 0.
Here, the NNSF network element can implement the function of allocating users within the MSC POOL, and when a new user enters the coverage area of the MSC POOL, the NNSF network element closest to the new user will randomly allocate the location update request of the user to one MSC SERVER in the POOL group in proportion according to the pre-configured capacity factor and the principle of load balancing, so that the load of each MSC SERVER in the POOL is approximately equivalent. In practical implementation, the NNSF network element is usually a BSC/RNC, and may also be a MGW.
In practical implementation, the subscriber capacity factor of the i-th MSC SERVER configured in all NNSF network elements in the MSC POOL is usually identical.
There is SGs interface between the part MSC SERVER in MSC POOL and MME, which is responsible for accepting joint attachment of CSFB users, so that this part MSC SERVER of registered users contains a certain number of SGs associated users, i.e. CSFB users.
In this step, the user registration information obtained by the load balancing automatic configuration system includes: number of users P registered per MSC SERVER in MSC POOLi(i is not less than 1 and not more than m), and the number Q of CSFB users registered in each MSC SERVERi(1 ≦ i ≦ m) and each user MSC SERVER corresponds toCapacity factor Ci(1≤i≤m)。
Note that if the ith MSC SERVER is MSCS ERVER for a non-CSFB user, then Q isiIs equal to 0, otherwise, QiIs an integer greater than 0. And the user capacity factor corresponding to each MSC SERVER is the maximum user capacity that the software and hardware of the device configuration can handle, regardless of the number of users actually registered.
Step 201: the proportion of the CSFB users to the total number of CSFB users and the proportion of the CSFB users to the total number of users in each MSC SERVER are calculated.
In this step, the ratio S of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOL is calculatediThe mathematical expression of (a) is: si＝Qi/ΣQiThe mathematical expression for calculating the proportion R of the CSFB users in the MSC POOL to the total number of the users is as follows: r ═ Σ Qi/ΣPi。
Note that if the ith MSC SERVER is MSC SERVER of a non-CSFB user, S isiEqual to 0.
Step 202: and calculating the corrected value of the user capacity factor corresponding to each MSC SERVER on the NNSF network element.
In this step, in combination with different allocation algorithms of the non-CSFB user and the CSFB user, the mathematical expression for deducing the user capacity factor correction value corresponding to each MSC SERVER on the NNSF network element may be: delta Ci＝Si×R×ΣCi＝(Qi/ΣQi)×(ΣQi/ΣPi)×ΣCi＝(Qi/ΣPi)×ΣCiFrom the final derivation Δ Ci＝(Qi/ΣPi)×ΣCiIt can be seen that when the ith MSC SERVER CSFB user number QiThe larger the value Δ C, the user capacity factor of which needs to be correctediThe larger the size; when Q isiWhen equal to 0 (i.e., MSC SERVER for non-CSFB users), Δ CiAlso 0, i.e. the user capacity factor of the ith MSC SERVER need not be modified.
Preferably, Δ C is derived from the lasti＝(Qi/ΣPi)×ΣCiIt can be seen that step 201 can be omitted in the actual calculation process, and Q is used directlyi、ΣPiAnd sigma CiCalculating to obtain the user capacity factor correction value delta Ci。
Step 203: and calculating the corrected user capacity factor corresponding to each MSC SERVER on the NNSF network element.
In this step, the mathematical expression of the modified user capacity factor corresponding to each MSC SERVER on the NNSF network element may be: ci′＝Ci-(Qi/ΣPi)×ΣCi。
Preferably, in order to facilitate the configuration of the user capacity factor, the correction value Δ C for the obtained user capacity factor is requirediRounding up or rounding down, or to the modified user capacity factor Ci' round up or round down such that the modified user capacity factor value is an integer.
Illustratively, there are 5 MSC SERVER and 3 NNSF network elements in the MSC POOL, where the number of users registered on each MSCSERVER is: p1＝300、P2＝410、P3＝395、P4＝395、P5500; the number of CSFB users registered in each MSCSERVER is: q1＝198、Q2＝306、Q3＝0、Q4＝0、Q5396; the user capacity factors configured for 5 MSC SERVER on each NNSF network element are: c1＝400、C2＝500、C3＝500、C4＝500、C5＝600。
The total user capacity factor is: sigma CiThe total number of registered users is 2500: sigma Pi2000, the user capacity factor correction value corresponding to each MSC SERVER is calculated as:
each MSC SERVER corresponding modified userThe capacity factors are respectively: c1′＝153、C2′＝118、C3′＝500、C4′＝500、C5′＝105。
Step 204: the load balancing auto-configuration system configures the user capacity factor corresponding to each MSC SERVER on all NNSF network elements as the modified capacity factor.
In practical implementation, the load balancing automatic configuration system issues the MML configuration instruction including the corrected user capacity factor to all NNSF network elements in the MSL POOL, and reconfigures MSC SERVER in which the user capacity factor needs to be corrected.
In the embodiment of the present invention, the user registration information of each mobile switching server MSC SERVER in the MSC POOL is acquired; the user registration information includes: the number of users registered in MSC SERVER for each MSC POOL, the number of CSFB users registered in MSC SERVER for each MSC POOL, and a user capacity factor corresponding to MSC SERVER for each MSC POOL; calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information; and correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the capacity factor correction value. In this way, it is achieved that as the number of CSFB users increases, the user capacity factor of each MSC SERVER in the MSC POOL is corrected so that the load of each MSC SERVER is re-balanced.
Third embodiment
Aiming at the method of the embodiment of the invention, the embodiment of the invention also provides a device for load balancing configuration in MSC POOL. Fig. 4 is a schematic structural diagram of an apparatus for load balancing configuration in an MSC POOL according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes: an acquisition module 400, a calculation module 401 and a correction module 402; wherein the content of the first and second substances,
an obtaining module 400, configured to obtain user registration information of each mobile switching server MSC SERVER in the MSC POOL; the user registration information includes: the number of users MSC SERVER registered in each MSC POOL, the number of CSFB users registered in each MSC SERVER MSC POOL, and a user capacity factor corresponding to each MSC SERVER MSC POOL.
A calculating module 401, configured to calculate, according to the subscriber registration information, a subscriber capacity factor correction value corresponding to each MSCSERVER in the MSC POOL.
A correcting module 402, configured to correct the user capacity factor corresponding to each MSCSERVER in the MSC POOL according to the capacity factor correction value.
In practical implementation, the obtaining module may issue an MML data acquisition instruction through an MML instruction interface existing between all MSC SERVER and all NNSFs in the MSC POOL, and obtain user registration information from the acquired message instruction. Preferably, the calculating module 401 is specifically configured to calculate the user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to a sum of a proportion of the CSFB users in the MSC POOL to the total number of users, a proportion of the CSFB users in each MSCSERVER to the total number of CSFB users in the MSC POOL, and a user capacity factor corresponding to each MSC SERVER in the MSC POOL.
Preferably, the calculating module 401 is specifically configured to calculate a user capacity factor correction value Δ C corresponding to the ith MSC SERVER in the MSC POOLi，ΔCi＝Si×R×ΣCi(ii) a Wherein S isiThe ratio of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSCPOOL, R is the ratio of the CSFB users in the MSC POOL to the total number of users, Sigma CiFor the sum of the subscriber capacity factors corresponding to each MSC SERVER in MSC POOL, i is an integer greater than 0.
Preferably, the calculating module 401 is further configured to calculate a ratio S of the number of CSFB users in the ith MSC SERVER to the total number of CSFB users in the MSC POOLi，Si＝Qi/ΣQi。
The calculating module 401 is further configured to calculate a ratio R of CSFB users to total users in the MSC POOL, where R is ═ Σ Qi/ΣPi(ii) a Wherein Q isiNumber of CSFB subscribers, P, registered for the ith MSC SERVERiThe number of users registered for the ith MSC SERVER in the MSC POOL.
Preferably, the modification module 402 is specifically configured to calculate a modified user capacity factor C corresponding to the ith MSC SERVER in the MSC POOLi′，Ci′＝Ci-ΔCi(ii) a Wherein, CiFor the subscriber capacity factor, Δ C, corresponding to the ith MSC SERVER in MSC POOLiFor the correction value of the subscriber capacity factor corresponding to the ith MSC SERVER in the MSC POOL, i is an integer greater than 0.
In practical implementation, after the correction module corrects the user capacity factor of MSC SERVER, the correction module issues an MML configuration instruction including the corrected user capacity factor to all NNSF network elements in the MSL POOL, and reconfigures MSC SERVER in which the user capacity factor needs to be corrected.
In practical applications, the obtaining module 400, the calculating module 401 and the modifying module 402 can be implemented by a Central Processing Unit (CPU), a microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like in a terminal device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. A method for load balancing configuration in a mobile switching center POOL, MSC POOL, the method comprising:
acquiring the user registration information of each mobile switching server MSC SERVER in the MSC POOL; the user registration information includes: the number of users registered in MSC SERVER for each MSC POOL, the number of CSFB users registered in circuit switched fallback (CS FB) users for each MSC SERVER MSC POOL, and a user capacity factor corresponding to each MSC SERVER MSC POOL;
calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information;
according to the user capacity factor correction value, correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL;
the calculating the user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the user registration information includes: and calculating a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to the proportion of the CSFB users in the MSC POOL to the total number of the users, the proportion of the CSFB users in each MSC SERVER to the total number of the CSFB users in the MSC POOL and the sum of the user capacity factors corresponding to each MSC SERVER in the MSC POOL.
2. The method of claim 1 wherein said calculating subscriber capacity factor correction values for each MSC SERVER of MSC POOLs comprises: calculating user capacity factor correction value delta C corresponding to ith MSC SERVER in MSC POOLi，ΔCi＝Si×R×∑Ci；
Wherein S isiThe number of CSFB users in the ith MSC SERVER accounts for the total number of CSFB users in the MSC POOL, R is the proportion of CSFB users in the MSC POOL to the total number of users, and sigma CiFor the sum of the subscriber capacity factors corresponding to each MSC SERVER in the MSC POOL, i is an integer greater than 0.
3. The method of claim 2 wherein the ratio S of the number of CSFB users in the i-th MSC SERVER to the total number of CSFB users in the MSC POOLiThe mathematical expression of (a) is: si＝Qi/∑Qi(ii) a The mathematical expression of the proportion R of the CSFB users in the MSC POOL to the total number of the users is as follows: r ═ Σ Qi/∑Pi；
Wherein, Q isiNumber of CSFB users registered for ith MSC SERVER, PiThe number of users registered for the ith MSCSERVER in the MSC POOL.
4. The method according to claim 1, wherein said modifying the subscriber capacity factor corresponding to each MSC SERVER in the MSC POOL according to the subscriber capacity factor modification value comprises: calculating a corrected user capacity factor C corresponding to the ith MSC SERVER in the MSC POOLi′，Ci′＝Ci-ΔCi；
Wherein, CiA user capacity factor, Δ C, corresponding to the ith MSC SERVER in the MSC POOLiAnd taking an integer larger than 0 for the user capacity factor correction value corresponding to the ith MSC SERVER in the MSCPOOL.
5. An apparatus for load balancing configuration in a mobile switching center POOL, MSC POOL, the apparatus comprising: the device comprises an acquisition module, a calculation module and a correction module; wherein the content of the first and second substances,
an obtaining module, configured to obtain user registration information of each mobile switching server MSC SERVER in the MSC POOL; the user registration information includes: the number of users MSC SERVER registered in each MSC POOL, the number of CSFB users MSCSERVER registered in each MSC POOL, and a user capacity factor corresponding to MSC SERVER in each MSC POOL;
a calculating module, configured to calculate, according to the user registration information, a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL;
the correction module is used for correcting the user capacity factor corresponding to each MSC SERVER in the MSC POOL according to the user capacity factor correction value;
the calculating module is specifically configured to calculate a user capacity factor correction value corresponding to each MSC SERVER in the MSC POOL according to a total sum of a proportion of CSFB users in the MSC POOL to a total number of users, a proportion of CSFB users in each MSCSERVER to a total number of CSFB users in the MSC POOL, and a user capacity factor corresponding to each MSCSERVER in the MSC POOL.
6. The apparatus according to claim 5, wherein the calculating module is specifically configured to calculate the user capacity factor correction value Δ C corresponding to the ith MSC SERVER in the MSC POOLi，ΔCi＝Si×R×∑Ci；
Wherein S isiThe number of CSFB users in the ith MSC SERVER accounts for the total number of CSFB users in the MSC POOL, R is the proportion of CSFB users in the MSC POOL to the total number of users, and sigma CiFor each of the MSC POOL MSC SERVERThe sum of the user capacity factors, i, is an integer greater than 0.
7. The apparatus of claim 6, wherein said calculating module is further configured to calculate a ratio S of the number of CSFB users in the i-th MSCSERVER to the total number of CSFB users in the MSC POOLi，Si＝Qi/∑Qi；
The calculating module is further configured to calculate a ratio R of CSFB users to total users in the MSC POOL, where R is ═ Σ Qi/∑Pi；
Wherein, Q isiNumber of CSFB users registered for ith MSC SERVER, PiThe number of users registered for the ith MSCSERVER in the MSC POOL.
8. The apparatus of claim 5, wherein the modification module is specifically configured to calculate a modified user capacity factor C corresponding to the ith MSC SERVER in the MSCPOOLi′，Ci′＝Ci-ΔCi；
Wherein, CiA user capacity factor, Δ C, corresponding to the ith MSC SERVER in the MSC POOLiAnd taking an integer larger than 0 for the user capacity factor correction value corresponding to the ith MSC SERVER in the MSCPOOL.
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