CN104735724A - Load balancing processing method and device, wireless access node and user equipment - Google Patents
Load balancing processing method and device, wireless access node and user equipment Download PDFInfo
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- CN104735724A CN104735724A CN201310713642.1A CN201310713642A CN104735724A CN 104735724 A CN104735724 A CN 104735724A CN 201310713642 A CN201310713642 A CN 201310713642A CN 104735724 A CN104735724 A CN 104735724A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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Abstract
The invention provides a load balancing processing method and device, a wireless access node and user equipment. The method comprises the steps that an access request sent by the user equipment is received, wherein the access request carries identification information of an original wireless access node which provides services for the user equipment last time; whether the amount of user equipment requesting access exceeds a first allowing access number or not is judged; under the situation that the judgment result is yes, the first allowing access number and the second allowing access number of the original wireless access node are adjusted according to the amount of the user equipment and the identification information, wherein the increasing number of the first allowing access number is equal to the decreasing number of the second allowing access number. By means of the load balancing processing method and device, the wireless access node and the user equipment, the problems that in the related technology, when overload balance is processed, user services are delayed, services are interrupted, redundancy and uncertainty are increased due to frequent adjustment, and consequently the user experience is reduced are solved, and thus the effect of effectively improving the user experience is achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of load balance process method, device, radio access node and subscriber equipment.
Background technology
Along with the development of the maturation of wireless technology, particularly mobile communication technology, increasing mobile subscriber holds mobile device, carries out the communication of voice-and-data content.In current existing mobile communications network framework, wireless access part is formed primarily of the base-station node (NodeB) in 3G network and radio network controller (RNC) node, only there is a node (eNodeB) in evolution wireless network.These nodes are responsible for distribution and the management of Radio Resource, and transmit the information between mobile terminal and core network node.Fig. 1 is the network architecture schematic diagram of evolution mobile communication system in correlation technique, as shown in Figure 1, for evolution network framework, between radio access node (eNodeB), there is X2 interface, there is S1 interface in wireless access and core network part, for the communication between node.
For core net node, the mobile device number that it can hold can reflect the capacity of offered load.Normal conditions, a core net node is connected with multiple radio node, radio node is distributed in different places, for providing the function of core network access node serve for the user of diverse geographic location, and can be the maximum number of users allowing access of each radio access node configuration, all radio access nodes maximum permission access customer number object summation of its configuration, does not allow to exceed core net node maximum load capacity.Once there is overload phenomenon, Network Abnormal may be caused to provide service, more very occur the situation of network paralysis.
Requiring to provide service to occur the situation of overload for solving a large amount of load in the short time simultaneously, there is multiple technologies method at present, reaching and realize load balancing:
(1) random access delay instruction.When a radio access node (following or title access node) the current mobile device accessed, close to saturated, reaches maximum permission access number.When occurring that the new mobile device being in Idle state requires access, access node by indication lag (BackOffIdentity) mark in accidental access response (Radom Access Response), receives the mobile device initiating random access procedure again over time postponing instruction in access control part;
(2) Radio Resource sets up refusal.When new mobile device and radio access node process resource process of establishing, access node passes to mobile device by the space interface signaling (RRC Connection Setup Reject) of display, and mobile device is not being initiated caller and receiving called service within follow-up a period of time;
(3) by upgrading resettlement contextual information.When same radio node is connected with two different core network nodes, when the core net node that mobile device requires access saturated, radio access node is by the connection discharging existing resource and set up, instruction mobile device initiatively initiating updating of tracking area process (Tracking Area Update), initial UE information is passed to the core net node do not comprised by radio access node by S1 interface, UE information is moved alternately, at new core net node for user provides service by core net node;
(4) resource query and code reassignment.By inquiry every radio access node access number of loads mode between radio access node, each radio access node of continuous dynamic conditioning allows access maximum load number;
(5) Radio Resource is used.When radio access node accessed user number quantity is tending towards saturated, seizes and be adjacent and unsaturated radio access node resource, for mobile device provides service;
In the above-mentioned processing mode of correlation technique, by the function of radio access node self, can avoid transshipping the object reaching load balancing to a certain extent.But these technical approach postpone for user serves sacrifice Consumer's Experience, and affect other radio nodes for its overlay area user and provide service for cost.Method (1) and method (2) are delayed user's access, when the load accessed takies resource for a long time, just cannot provide service for new user.Method (3) has taken the user of resource by release and resettlement reaches equilibrium to other idle node, but the method can cause customer service to be interrupted, and re-establishes Radio Resource and there is an explicit time delay.Method (4) is communication interaction between radio access node, the maximum access user number of each node of dynamic conditioning.This load balancing mode is not based on the user in actual coverage area territory, once there is the situation of new user access after there is adjustment, there will be and repeatedly adjusts, add the communications burden between network node, occur redundancy signaling.Method (5) is the increase in the priority being full of state node, use the resource being adjacent node, still can cause by the node used once occur that a large number of users accesses, inadequate resource causes again using other node resources, add bulk redundancy and uncertainty, and the situation that adjacent node resource is also in saturation condition and cannot uses may be there is, cause to provide service for user.
Therefore, in the related, when processing overload and being balanced, exist and postpone for user's service, interrupting service, and frequent adjustment increases redundancy and uncertainty, causes the problem reducing Consumer's Experience.
Summary of the invention
The invention provides a kind of load balance process method, device, radio access node and subscriber equipment, at least to solve in correlation technique, when processing overload and being balanced, exist and postpone for user's service, interrupting service, and frequent adjustment increases redundancy and uncertainty, cause the problem reducing Consumer's Experience.
According to an aspect of the present invention, provide a kind of load balance process method, comprise: receive the access request that subscriber equipment sends, wherein, in described access request, carry last time provides the former radio access node of service identification information for described subscriber equipment; Judge that whether the number of the described subscriber equipment of asking access is more than the first permission access number; When judged result is for being, according to number and the described first permission access number of described identification information adjustment of described subscriber equipment, and second of described former radio access node allows access number, wherein, described first accelerating of access number is allowed to allow the minimizing quantity of access number equal with described second.
Preferably, before whether the number of the described subscriber equipment judging request access exceedes described first permission access number, also comprise: judge whether the number of the described subscriber equipment of request access exceedes the predetermined permission number in the scheduled time, when judged result is for being, judge that asking the number of the described subscriber equipment of access whether to exceed described first allows access number.
Preferably, according to the number of described subscriber equipment and described identification information adjustment last time for described subscriber equipment provides second of the described former radio access node of service to allow access number to comprise: obtain the number of user equipment with the subscriber equipment of same identification information; According to described number of user equipment, the described former radio access node corresponding to described same identification information sends adjustment information, and wherein, described former radio access node allows access number according to described adjustment information adjustment described second.
According to a further aspect in the invention, provide a kind of load balance process method, comprising: obtain the identification information that the former radio access node of service was provided for subscriber equipment last time, access request is sent to current wireless access node, wherein, described identification information is carried in described access request, described identification information is used for described current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of described current wireless access node, number according to the subscriber equipment of request access adjusts first of described radio access node and allows access number, and second of described former radio access node allows access number, described first allows accelerating of access number to allow the minimizing quantity of access number equal with described second.
In accordance with a further aspect of the present invention, provide a kind of load balance process device, comprising: receiver module, for receiving the access request that subscriber equipment sends, wherein, last time provides the former radio access node of service identification information for described subscriber equipment is carried in described access request; First judge module, for judging that whether the number of the described subscriber equipment of asking access is more than the first permission access number; Adjusting module, for when the judged result of described first judge module is for being, according to number and the described first permission access number of described identification information adjustment of described subscriber equipment, and second of described former radio access node allows access number, wherein, described first accelerating of access number is allowed to allow the minimizing quantity of access number equal with described second.
Preferably, this device also comprises: the second judge module, whether the number for the described subscriber equipment judging request access exceedes the predetermined permission number in the scheduled time, when the judged result of described first judge module is for being, judge that asking the number of the described subscriber equipment of access whether to exceed described first allows access number.
Preferably, described adjusting module comprises: acquiring unit, for obtaining the number of user equipment of the subscriber equipment with same identification information; Transmitting element, for according to described number of user equipment, the described former radio access node corresponding to described same identification information sends adjustment information, and wherein, described former radio access node allows access number according to described adjustment information adjustment described second.
According to also one side of the present invention, provide a kind of radio access node, comprise the device described in above-mentioned any one.
According to another aspect more of the present invention, provide a kind of load balance process device, comprising: acquisition module, for obtaining the identification information of the former radio access node providing service last time for subscriber equipment, sending module, for sending access request to current wireless access node, wherein, described identification information is carried in described access request, described identification information is used for described current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of described current wireless access node, according to the number of the subscriber equipment of request access, adjust described radio access node first allows access number, and second of described former radio access node allows access number, described first allows accelerating of access number to allow the minimizing quantity of access number equal with described second.
According to also another aspect of the present invention, provide a kind of subscriber equipment, comprise device described above.
By the present invention, adopt the access request receiving subscriber equipment and send, wherein, in described access request, carry last time provides the former radio access node of service identification information for described subscriber equipment, judge that whether the number of the described subscriber equipment of asking access is more than the first permission access number, when judged result is for being, according to the number of described subscriber equipment, and described identification information adjustment described first allows access number, and second of described former radio access node allows access number, wherein, described first allows accelerating of access number to allow the minimizing quantity of access number equal with described second, solve in correlation technique, when processing overload and being balanced, exist and postpone for user's service, interrupting service, and frequent adjustment increases redundancy and uncertainty, cause the problem reducing Consumer's Experience, and then reach the interruption effectively avoiding access service, and the impact on new access service, achieve the self adaptation dynamic conditioning of service node, enhance the effect of the accuracy of equilibrium treatment.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the network architecture schematic diagram of evolution mobile communication system in correlation technique;
Fig. 2 is the flow chart of the load balance process method one according to the embodiment of the present invention;
Fig. 3 is the flow chart of the load balance process method two according to the embodiment of the present invention;
Fig. 4 is the structured flowchart of the load balance process device one according to the embodiment of the present invention;
Fig. 5 is the preferred structure block diagram of the load balance process device one according to the embodiment of the present invention;
Fig. 6 is the preferred structure block diagram of adjusting module 46 in the load balance process device one according to the embodiment of the present invention;
Fig. 7 is the structured flowchart of the radio access node according to the embodiment of the present invention;
Fig. 8 is the structured flowchart of the load balance process device two according to the embodiment of the present invention;
Fig. 9 is the structured flowchart of the subscriber equipment according to the embodiment of the present invention;
Figure 10 is the overview flow chart based on mobile device load-balancing method according to the embodiment of the present invention;
Figure 11 is the flow chart of mobile equipment load balance processing method under EUTRAN according to the preferred embodiment of the present invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Provide a kind of load balance process method in the present embodiment, Fig. 2 is the flow chart of the load balance process method one according to the embodiment of the present invention, and as shown in Figure 2, this flow process comprises the steps:
Step S202, receives the access request that subscriber equipment sends, wherein, carries last time provides the former radio access node of service identification information for subscriber equipment in this access request;
Step S204, judges that whether the number of the subscriber equipment of asking access is more than the first permission access number;
Step S206, when judged result is for being, according to number and the identification information adjustment first permission access number of subscriber equipment, and second of former radio access node allows access number, wherein, first accelerating of access number is allowed to allow the minimizing quantity of access number equal with second.
Pass through above-mentioned steps, for accepting for radio access node (namely current radio access node) that subscriber equipment joins request, when asking the number of user equipment of access to be greater than the permission access number of current wireless access node, by adjusting the second permission access number of the former radio access node of this first permission access number and subscriber equipment access last time, adjustment protection first allows accelerating of access number to allow the minimizing quantity of access number equal with second, thus favourablely ensure that the maximum permission access number not this that core net is safeguarded, when carrying out the process of equilibrium overload relative to the various technology adopted in correlation technique, exist and postpone for user's service, interrupting service, and frequent adjustment increases redundancy and uncertainty, cause the problem reducing Consumer's Experience, not only effectively avoid the interruption of access service, and the impact on new access service, and have effectively achieved the self adaptation dynamic conditioning of service node, enhance the accuracy of equilibrium treatment, effectively improve Consumer's Experience to a certain extent.
In order to avoid between radio access node and radio access node, and frequent mutual between radio access node and core net, before judging that the number of the subscriber equipment of asking access is whether more than the first permission access number, following process can also be adopted: judge whether the number of the subscriber equipment of request access exceedes the predetermined permission number in the scheduled time, when judged result is for being, judge that whether the number of the subscriber equipment of asking access is more than the first permission access number.Namely can be handled together by the access request of the subscriber equipment in setting a period of time, do not need to carry out the adjustment that the first permission access number and second allows access number when the access that there is subscriber equipment, effectively reduce the mutual of signaling.
Preferably, according to number and the identification information adjustment first permission access number of subscriber equipment, and former radio access node second allow access number time, current wireless access node can only directly adjust this first permission access number according to the number of subscriber equipment, is updated to first of original setting allows access number and new number of user equipment sum of asking to add current wireless access node by the first permission access number.And according to the number of subscriber equipment and identification information adjustment last time for subscriber equipment provide second of the former radio access node of service to allow access number time, first can obtain the number of user equipment of the subscriber equipment with same identification information; According to number of user equipment, the former radio access node corresponding to same identification information sends adjustment information, and afterwards, this former radio access node allows access number according to adjustment information adjustment second.
Additionally provide a kind of load balance process method in the present embodiment, Fig. 3 is the flow chart of the load balance process method two according to the embodiment of the present invention, and as shown in Figure 3, this flow process comprises the steps:
Step S302, obtains the identification information providing the former radio access node of service last time for subscriber equipment;
Step S304, access request is sent to current wireless access node, wherein, identification information is carried in access request, this identification information is used for current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of current wireless access node, according to the number of the subscriber equipment of request access, first of adjustment radio access node allows access number, and second of former radio access node allows access number, and first allows accelerating of access number to allow the minimizing quantity of access number equal with second.
Pass through above-mentioned steps, for subscriber equipment side, when asking the number of user equipment of access to be greater than the permission access number of current wireless access node, adjusted the former radio access node of this first permission access number and subscriber equipment access last time by current wireless access node second allows access number, when carrying out the process of equilibrium overload relative to the various technology adopted in correlation technique, exist and postpone for user's service, interrupting service, and frequent adjustment increases redundancy and uncertainty, cause the problem reducing Consumer's Experience, not only effectively avoid the interruption of access service, and the impact on new access service, and have effectively achieved the self adaptation dynamic conditioning of service node, enhance the accuracy of equilibrium treatment, effectively improve Consumer's Experience to a certain extent.
Additionally provide a kind of load balance process device in the present embodiment, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 4 is the structured flowchart of the load balance process device one according to the embodiment of the present invention, and as shown in Figure 4, this device comprises receiver module 42, first judge module 44 and adjusting module 46, is described below to this device.
Receiver module 42, for receiving the access request that subscriber equipment sends, wherein, carries last time provides the former radio access node of service identification information for subscriber equipment in access request; First judge module 44, is connected to above-mentioned receiver module 42, for judging that whether the number of the subscriber equipment of asking access is more than the first permission access number; Adjusting module 46, be connected to above-mentioned first judge module 44, for when the judged result of the first judge module is for being, according to number and the identification information adjustment first permission access number of subscriber equipment, and second of former radio access node allows access number, wherein, first accelerating of access number is allowed to allow the minimizing quantity of access number equal with second.
Fig. 5 is the preferred structure block diagram of the load balance process device one according to the embodiment of the present invention, and as shown in Figure 5, this device, except all modules comprising Fig. 4, also comprises the second judge module 52, is described below to this second judge module 52.
This second judge module 52, be connected to above-mentioned receiver module 42 and the first judge module 44, whether the number for the subscriber equipment judging request access exceedes the predetermined permission number in the scheduled time, when the judged result of the first judge module is for being, judge that whether the number of the subscriber equipment of asking access is more than the first permission access number.
Fig. 6 is the preferred structure block diagram of adjusting module 46 in the load balance process device one according to the embodiment of the present invention, and as shown in Figure 6, this adjusting module 46 comprises acquiring unit 62 and transmitting element 64, is described below to this adjusting module 46.
Acquiring unit 62, for obtaining the number of user equipment of the subscriber equipment with same identification information; Transmitting element 64, is connected to above-mentioned acquiring unit 62, and for foundation number of user equipment, the former radio access node corresponding to same identification information sends adjustment information, and wherein, former radio access node allows access number according to adjustment information adjustment second.
Fig. 7 is the structured flowchart of the radio access node according to the embodiment of the present invention, and as shown in Figure 7, this radio access node 70 comprises above-mentioned load balance process device 1.
Fig. 8 is the structured flowchart of the load balance process device two according to the embodiment of the present invention, and as shown in Figure 8, this device comprises acquisition module 82 and sending module 84, is described below to this device.
Acquisition module 82, for obtaining the identification information of the former radio access node providing service last time for subscriber equipment, sending module 84, be connected to above-mentioned acquisition module 82, for sending access request to current wireless access node, wherein, identification information is carried in access request, this identification information is used for current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of current wireless access node, according to the number of the subscriber equipment of request access, first of adjustment radio access node allows access number, and second of former radio access node allows access number, first allows accelerating of access number to allow the minimizing quantity of access number equal with second.
Fig. 9 is the structured flowchart of the subscriber equipment according to the embodiment of the present invention, and as shown in Figure 9, this subscriber equipment 90 comprises above-mentioned load balance process device 2 92.
For the problems referred to above in correlation technique, in order to avoid occurring that mobile device too much causes overload cannot provide service for user when radio access node, and on the impact of existing customer service and redundancy signaling during in order to reduce load balancing, provide a kind of load balancing adaptive approach based on subscriber equipment, thus reach the object of load balancing, improve network parameter configuration adaptivity and Consumer's Experience.This technical scheme mainly comprises following process: use cell global unique identification (or claiming Cell Global Identification) (Cell Global Identity, referred to as CGI) can cell information in unique identification radio access node and node.For Universal Terrestrial wireless access network (the Evolved Universal Terrestrial Radio Access Network of evolution, referred to as EUTRAN) and land radio access web (Terrestrial Radio Access Network, referred to as UMTS) wireless communication system, CGI content comprises network identity (such as, public-land mobile network (Public Land Mobile Network, referred to as PLMN) identify and cell ID (Cell Identity), for GSM EDGE Radio Access Network (Radio AccessNetwork, referred to as RAN) wireless communication system, CGI also increases location area code (Location Area Code) mark.
This load balancing adaptive approach comprises: when mobile device and radio access node set up Radio Resource, CGI information is read out from this CBCH, when mobile device release Radio Resource gets back to idle condition, record provided the cell ID CGI of service for it last time.When large number quipments moves to new radio access node coverage, when needs carry out business and when radio access node connects, the radio access node that the explicit increase cell Last CGI of request (RRC Connection Setup Request) message is indicated to current access is set up at air interface standard signaling Radio Resource, if in the stipulated time T of setting, require that the mobile device quantity N_user of access reaches the numerical value of N _ t_user_max preset, and there is the maximum permission access numerical value of N _ max_allowed having exceeded the definition of this radio node after accessing load capacity N_access and N_user is added in current wireless access node, then current wireless knot adjustment maximum permission access number is N_max_allowed+N_user, receive new subscriber equipment for its distributing radio resource simultaneously, and the LastCGI information of carrying when RRC connection establishment request message according to subscriber equipment, extract the number of user equipment (N_same_cgi_1 with identical CGI information, N_same_cgi_2, N_same_cgi_n), and N_same_cgi_1+N_same_cgi_2+ ... + N_same_cgi_n=N_user.Current eNodeB can pass through X2 standard interface, sends message (Load NumberAdjust, N_same_cgi_i), i=1 here, 2 according to CGI information respectively to different former radio access nodes ..., n.The each former access node receiving message carries out the adjustment of maximum permission access customer number object respectively, and it is M_max_allowed-N_same_cgi_i that former access node adjusts maximum permission access user number according to N_same_cgi_i.Such guarantee is for core net node, and the maximum permission access number of maintenance is constant.The maximum permission access number that each access node is safeguarded, along with the movement of terminal, adjusts dynamically when there is overload phenomenon.
Figure 10 is the overview flow chart based on mobile device load-balancing method according to the embodiment of the present invention, and as shown in Figure 10, this flow process comprises the steps:
Step S1002, UE records current wireless access node (such as, eNodeB) unique identification CGI, namely when mobile device and radio access node are set up Radio Resource and be connected, from broadcast channel, obtain the global unique identification CGI of this radio node of mark, and record CGI when Release radio resource is in idle condition;
Step S1004, UE sends when Radio Resource sets up request (RRC Connection Request) and carries CGI, such as, when large number quipments moves to initiation business in new radio node (maximum permission access user number N_max_allowed, accessed user number N _ access) coverage, the CGI information of record is filled in RRC Connection Setup Request message;
Step S1006, judge that current wireless node requires in stipulated time T whether the number of users N_user accessed has exceeded in the stipulated time number of users N_t_user_max allowing access, namely judge in T time, whether N_user is greater than N_t_user_max, when judged result is for being, enter step S1008, otherwise enter step S1014;
Step S1008, judge to require whether the user data N_user of access and the number of users N_access summation of existing access have exceeded maximum permission access user number N_max_allowed, namely judge whether N_user and N_access sum has exceeded N_max_allowed, when judged result is for being (namely current wireless access node is in overload), enter step S1010, otherwise enter step S1212;
Step S1010, it is N_max_allowed+N_user that current wireless access node adjusts maximum permission access user number, and for requiring the user equipment allocation Radio Resource accessed, simultaneously according to the CGI information of carrying in RRC Connection Setup Request, extract the number of users N_same_cgi_i(i=1 of the new demand access with identical CGI respectively, 2, n), N_same_cgi_i<=N_user, N_same_cgi_1+ ... + N_same_cgi_n=N_user;
According to CGI, step S1012, notifies that former eNodeB carries out adjustment of load (Load Number Adjust), the permission access user number (N_max_allowed+) that current wireless access node increases is equal with the permission access user number (M_max_allowed-) that former radio access node reduces, and N_max_allowed+=M_max_allowed-=N_user, namely current wireless access node passes through X2 interface, former radio access node (Load NumberAdjust) corresponding is with it notified respectively according to CGI information, adjust the maximum permission access user number max_allowed-N_same_cgi_i of former radio access node, ensure each radio access node maximum permission access user number summation, core net can not be exceeded and hold user's greatest measure,
Step S1014, current wireless access node (i.e. new eNodeB) provide service for new access user equipment connects.During current wireless access node release mobile device, the CGI information of mobile device record current wireless access node, and replace the CGI being supplied to current wireless access node.
By above step, radio access node can according to the mobility of UE the maximum permission access number of loads of dynamic conditioning node, the adjustment of all node self-adaptings thus reach the effect of load balancing, it should be noted that, when user equipment migration is to other new radio access nodes, CGI information is supplied to new radio access node, when new radio access node overload, readjusts former radio access node and new radio access node maximum permission access user number.
Pass through above-described embodiment, have employed the former radio access node identification information of mobile device record, moving to the covering of new radio access node, when carrying out business, origin node CGI information is supplied to new node, if when overload appears in new node, maximum access number of loads can be adjusted accurately, and origin node is not because mobile device is in origin node coverage, reduce maximum access number of loads, make radio node load sum can not exceed the maximum accommodation number of users of core net.This load balancing mode can not interrupt the customer service accessed and the service access that can not affect new user.The node access user number of whole network constantly changes along with the migration of mobile device, and the situation that after can not causing load balancing, radio node transships.Signaling between network element only occurs along with the migration of mobile device, and network signal there will not be redundancy, has load balancing purpose and the advantage such as accuracy is stronger.
Figure 11 is the flow chart of mobile equipment load balance processing method under EUTRAN according to the preferred embodiment of the present invention, and as shown in figure 11, this flow process comprises the steps:
Step S1102, mobile device UE send Radio Resource to eNodeB_1 and set up request, and namely mobile device UE start resides in the community of eNodeB_1 coverage, completes location register or attaching process by eNodeB_1 and MME; UE carries out voice or data service, and eNodeB_1 is UE distributing radio resource, sets up wireless connections, complete Deta bearer process of establishing, MME provides service for UE, and UE reads CGI information from eNodeB_1 broadcast channel, and during service ending Release radio resource, UE stores CGI;
Step S1104, mobile device UE sends Radio Resource to eNodeB_2 and sets up request, namely UE moves to the scope that eNodeB_2 covers, and will carry the CGI information of eNodeB_1 when communicating with eNodeB_2 when initiating RRC Connection Setup Request when UE starts business procedure;
Step S1106, eNodeB_2 carry out the adjustment accessing load number, when a large amount of UE from other eNodeB_1 coverages migrate to eNodeB_2 coverage carry out business time, require that eNodeB_2 is that its distributing radio resource communicates.When eNodeB_2 checks whether the UE number of initiating business in stipulated time T configures maximum prescribed time permission access user number more than eNodeB_2, if not, forward step S1114 to.If exceed, whether inspection requirements access UE number has exceeded regulation maximum permission access user number with the number of users total number accessed at present.If do not exceed maximum permission access user number N_max_allowed, then forward step S1114 to.If exceed maximum permission access user number N_max_allowed, then according to the CGI information that UE provides, extract the UE number N _ same_cgi_i(i=1 with identical CGI information respectively, 2, and ensure N_same_cgi_1+ n) ... + N_same_cgi_n=N_user; Such as, eNodeB_2 adjusts maximum permission access number N_max_allowed+N_user;
Step S1108, eNodeB_2 number of loads adjustment send to eNodeB_1, namely eNodeB_2 by N_same_cgi message notice to eNodeB_1;
After step S1110, eNodeB_1 receive number of loads adjustment message informing, adjustment access load number, namely according to N_same_cgi numerical value, reducing maximum permission access user number is N_max_allowed – N_same_cgi.ENodeB_1 and eNodeB_2 be the N_max_allowed numerical value of adaptive adjustment correspondence according to UE situation of movement;
The UE that step S1112, eNodeB_2 and requirement access carries out foundation and the Deta bearer process of Radio Resource, and after service terminates, discharge this Radio Resource, and the CGI information of record eNodeB_2; Such as, following processing mode can be adopted: eNodeB_2 is the UE distributing radio resource of requirement access and connects, for UE provides access service; Step S1116, UE read the CGI information in eNodeB_2 broadcast channel, the CGI information of record eNodeB_2 when service ending release Radio Resource gets back to idle condition.If UE restarts business in eNodeB_2 coverage, will carry the CGI information of eNodeB_2, now eNodeB_2 can not change current maximum permission access user number, also can not notify that other radio access nodes adjust; When UE move to new eNodeB coverage cause new eNodeB loading process time, the CGI information that new eNodeB provides according to UE implements load balancing again according to the content of step S1108.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a load balance process method, is characterized in that, comprising:
Receive the access request that subscriber equipment sends, wherein, in described access request, carry last time provides the former radio access node of service identification information for described subscriber equipment;
Judge that whether the number of the described subscriber equipment of asking access is more than the first permission access number;
When judged result is for being, according to number and the described first permission access number of described identification information adjustment of described subscriber equipment, and second of described former radio access node allows access number, wherein, described first accelerating of access number is allowed to allow the minimizing quantity of access number equal with described second.
2. method according to claim 1, is characterized in that, before whether the number of the described subscriber equipment judging request access exceedes described first permission access number, also comprises:
Judging whether the number of the described subscriber equipment of request access exceedes the predetermined permission number in the scheduled time, when judged result is for being, judging that asking the number of the described subscriber equipment of access whether to exceed described first allows access number.
3. method according to claim 1, is characterized in that, according to the number of described subscriber equipment and described identification information adjustment last time for described subscriber equipment provides second of the described former radio access node of service to allow access number to comprise:
Obtain the number of user equipment with the subscriber equipment of same identification information;
According to described number of user equipment, the described former radio access node corresponding to described same identification information sends adjustment information, and wherein, described former radio access node allows access number according to described adjustment information adjustment described second.
4. a load balance process method, is characterized in that, comprising:
Obtain the identification information that the former radio access node of service was provided for subscriber equipment last time;
Access request is sent to current wireless access node, wherein, described identification information is carried in described access request, described identification information is used for described current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of described current wireless access node, number according to the subscriber equipment of request access adjusts first of described current wireless access node and allows access number, and second of described former radio access node allows access number, described first allows accelerating of access number to allow the minimizing quantity of access number equal with described second.
5. a load balance process device, is characterized in that, comprising:
Receiver module, for receiving the access request that subscriber equipment sends, wherein, carries last time provides the former radio access node of service identification information for described subscriber equipment in described access request;
First judge module, for judging that whether the number of the described subscriber equipment of asking access is more than the first permission access number;
Adjusting module, for when the judged result of described first judge module is for being, according to number and the described first permission access number of described identification information adjustment of described subscriber equipment, and second of described former radio access node allows access number, wherein, described first accelerating of access number is allowed to allow the minimizing quantity of access number equal with described second.
6. device according to claim 5, is characterized in that, also comprises:
Second judge module, whether the number for the described subscriber equipment judging request access exceedes the predetermined permission number in the scheduled time, when the judged result of described first judge module is for being, judge that asking the number of the described subscriber equipment of access whether to exceed described first allows access number.
7. device according to claim 5, is characterized in that, described adjusting module comprises:
Acquiring unit, for obtaining the number of user equipment of the subscriber equipment with same identification information;
Transmitting element, for according to described number of user equipment, the described former radio access node corresponding to described same identification information sends adjustment information, and wherein, described former radio access node allows access number according to described adjustment information adjustment described second.
8. a radio access node, is characterized in that, comprises the device according to any one of claim 5 to 7.
9. a load balance process device, is characterized in that, comprising:
Acquisition module, for obtaining the identification information of the former radio access node providing service last time for subscriber equipment;
Sending module, for sending access request to current wireless access node, wherein, described identification information is carried in described access request, described identification information is used for described current wireless access node when the number of the subscriber equipment of asking access exceedes the first permission access number of described current wireless access node, number according to the subscriber equipment of request access adjusts first of described current wireless access node and allows access number, and second of described former radio access node allows access number, described first allows accelerating of access number to allow the minimizing quantity of access number equal with described second.
10. a subscriber equipment, is characterized in that, comprises device according to claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713642.1A CN104735724B (en) | 2013-12-20 | 2013-12-20 | Load balance process method, apparatus, radio access node and user equipment |
| PCT/CN2014/078057 WO2015089990A1 (en) | 2013-12-20 | 2014-05-21 | Load balancing processing method and device, wireless access node and user equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310713642.1A CN104735724B (en) | 2013-12-20 | 2013-12-20 | Load balance process method, apparatus, radio access node and user equipment |
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| CN104735724B CN104735724B (en) | 2019-07-02 |
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Also Published As
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| CN104735724B (en) | 2019-07-02 |
| WO2015089990A1 (en) | 2015-06-25 |
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