CN102547858B - Method and system for heterogeneous wireless network resource management structure - Google Patents
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Abstract
本发明公开了一种异构无线网络资源管理架构系统和方法，该系统包括：处于接入网中的负载控制实体LCE、流量监控实体TME和策略映射实体PME，以及处于核心网中的联合负载控制服务器JLCS和全局子层绑定策略决策实体GSSDE，本发明中的负载控制实体LCE采用二级资源管理功能，获取并执行来自策略映射实体PME所生成的负载控制策略以确定是否允许各个移动终端接入或切换至所述接入网中、以及获取并执行来自全局子层绑定决策实体GSSDE所生成的分层数据流子层绑定策略以确定接入网所传输的数据子层的数目，使得该系统在完成负载控制的同时完成分层数据流的调度，实现移动用户的统一管理，优化了资源管理结构。
The invention discloses a heterogeneous wireless network resource management framework system and method, the system includes: a load control entity LCE in an access network, a traffic monitoring entity TME and a policy mapping entity PME, and a joint load in a core network The control server JLCS and the global sub-layer binding policy decision-making entity GSSDE, the load control entity LCE in the present invention adopts the secondary resource management function, obtains and executes the load control policy generated from the policy mapping entity PME to determine whether to allow each mobile terminal Accessing or switching to the access network, and obtaining and executing the hierarchical data flow sublayer binding policy generated by the global sublayer binding decision entity GSSDE to determine the number of data sublayers transmitted by the access network , so that the system completes the scheduling of hierarchical data flow while completing the load control, realizes the unified management of mobile users, and optimizes the resource management structure.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to the resource management architecture technology under heterogeneous wireless network, relate in particular to the resource management architecture system and method for integrated LTE and WLAN heterogeneous wireless network.
Background technology
Heterogeneous wireless network refers to that the Access Network of different access technologies covers mutually and provides the wireless network architecture of multimodality service for user.Along with the fast development of wireless access technology and the large scale deployment of Radio Access Network, it is very general that heterogeneous wireless network structure has become.Telecom operators, in setting up on a large scale wide-area wireless Access Network, all can build the WLAN (wireless local area network) leading with operator energetically, to support mobile subscriber's heterogeneous wireless network transmission service.Typical heterogeneous wireless network comprises integrated 3GPP Long Term Evolution (Long Term Evolution, be called for short LTE) and the heterogeneous wireless network of 802.11 WLAN (wireless local area network) (Wireless Local Area Network, abbreviation WLAN).The advantage of heterogeneous wireless network is to provide for user the access service of multiple access networks simultaneously, thereby realize high transmission rate, support real-time multimedia data business, improve user's service quality (Quality ofService is called for short QoS).
It is user behavior very important in heterogeneous wireless network with vertical switching that level is switched, the former refers to that mobile terminal roams between the Access Network overlay area of access technology of the same race, request accesses the behavior of the Access Network of new access technology of the same race, the latter refers in a kind of Access Network overlay area of access technology and roams into the Access Network overlay area of another kind of access technology, and asks the behavior of the Access Network of the new not access technology of the same race of access.It is recurrent with vertical switching in heterogeneous wireless network that level is switched.Comprise the switch decision that accesses signal, access control, mobile subscriber's load balancing distribution etc. for the research of switching.Access control decision-making and optimal management for new user's calling and switch call are the important contents of radio resource management techniques.In heterogeneous wireless network resource management architecture technical scheme, need horizontal and vertical handover management, load balancing and call out the problems such as access control to provide perfect solution.
The important feature of heterogeneous wireless network is to adopt the mode of layered data flows to transmit,, information source data form many independently layered data flows through coding, these layered data flows will send to mobile terminal through the transmission path of different Access Networks, and by mobile terminal, the layered data flows receiving are carried out to data recombination.Therefore the user who is positioned at overlapping Access Network coverage can receive the layered data flows from multiple Access Networks, reaches higher message transmission rate, and the user who is positioned at single Access Network coverage can only receive the data flow of single Access Network.This transmission means has proposed new challenge to traditional resource dispatching technique, needs advanced RRM architecture technology badly and solves this technical problem.
The networking mode of heterogeneous wireless network is mainly divided into close coupled system and loose coupling mode.Close coupled system refers to by the resource management function of different Access Networks is terminated in to the networking mode within core net, under this networking mode, the Access Network that need to rely on certain access technology is as with reference to network, the Access Network of other access technologies is considered as to the core net of the unified access of the subnet grid of reference of coupling, thereby need between grid of reference and the core net of other access technologies, sets up new communication interface.Loose coupling mode refers to that the Access Network of each access technology is all direct-connected to IP network, and the access network of each access technology is relatively independent, completes whole resource management functions completely by the information interaction of IP network.In the heterogeneous wireless network of integrated LTE and WLAN, resource management techniques scheme and appropriate networking mode are organically combined, be the important goal of resource management architecture technology.
The technological challenge facing in order to solve heterogeneous wireless network, each research institution and normal structure have all proposed different RRM architecture technologies.Typical RRM framework comprises joint radio resource management (the Joint Radio Resource Management that academia proposed in 2003, be called for short JRRM) architecture technology, combine and call out access control (Joint Session AdmissionControl by definition, be called for short JOSAC) entity and federated resource scheduling (Joint Resource Schedule, being called for short JOSCH) access behavior and the data stream transmitting behavior of entity to user carry out United Dispatching, can realize the dynamic assignment of Radio Resource.In addition, common radio resource management (the Common Radio Resource Management being proposed in 2002 by 3GPP, be called for short CRRM) architecture technology, by setting up CRRM server, and in each access network, define independently RRM (Radio ResourceManagement, being called for short RRM) entity is to carry out strategy alternately with CRRM server, realizes the United Dispatching to each access network internal resource.
Because the cell mobile communication systems taking LTE network as representative and the WLAN taking 802.11 WLAN as representative are in coverage, all many-sides such as message transmission rate and resource management scheme have diverse feature, under the situation of LTE network and WLAN fast development in recent years, traditional RRM architecture technology cannot intactly solve taking integrated LTE and WLAN in the heterogeneous wireless network of representative, comprise vertical switch call management and access control, load balancing, whole radio resource management functions of layered data flows scheduling etc., needing the advanced RRM architecture technology scheme that is applicable to heterogeneous wireless network of proposition badly intactly solves the problems of the technologies described above.
Summary of the invention
One of technical problem to be solved by this invention is that a kind of heterogeneous wireless network resource management architecture method and system need to be provided.
In order to solve the problems of the technologies described above, the invention provides a kind of heterogeneous wireless network resource management architecture system, this system comprises: load controlled entity LCE, the traffic monitoring entity TME in Access Network and policy mappings entity PME, and combined loading Control Server JLCS and overall sublayer binding strategy decision entity GSSDE in core net, wherein
Described load controlled entity LCE obtains the user mobility information of described Access Network, load state information and layered data flows sublayer binding information, described user mobility information and described load state information are sent in described traffic monitoring entity TME, obtain and carry out the load control strategy generating from described policy mappings entity PME to determine whether allowing each mobile terminal access or switch in described Access Network, and obtain and carry out the layered data flows sublayer binding strategy that generates from the described overall sublayer binding decision entity GSSDE number with the data sublayer determining described Access Network and transmitted,
Described traffic monitoring entity TME, go out switch call intensity of flow numerical value based on described user mobility information estimator, the described load state information of obtaining from described load controlled entity LCE and described user mobility information are sent to described combined loading server JLCS, and the load mobility information table obtaining from described combined loading server JLCS and described switch call intensity of flow numerical value are sent to policy mappings entity PME;
Described policy mappings entity PME generates load control strategy according to the described load mobility information table and the described switch call intensity of flow numerical value that receive from described traffic monitoring entity TME, and the described load control strategy generating is sent to described load controlled entity LCE;
The load mobility information table of the described load state information that the described traffic monitoring entity TME of described combined loading Control Server JLCS based in each Access Network obtains and described user mobility information, generation the whole network, and generated load mobility information table is sent in the described traffic monitoring entity TME in each Access Network;
The layered data flows sublayer binding information that the described load controlled entity LCE of described overall sublayer binding strategy decision entity GSSDE based in each Access Network obtains generates the layered data flows sublayer binding strategy in each Access Network, and described layered data flows sublayer binding strategy is sent to the described load controlled entity LCE in each Access Network.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described traffic monitoring entity TME calculates described call-flow strength values based on curve mode.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described policy mappings entity PME generates described load control strategy based on policy mappings algorithm,
Wherein, described policy mappings algorithm is the mapping algorithm of simple mapping, Linear Mapping algorithm or semi-Markov decision model.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described layered data flows sublayer binding information comprises that Access Network layered data flows sublayer, described policy mappings entity place binding number and described policy mappings entity allow the mobile terminal that accesses or switch to described policy mappings entity place Access Network to expect the layered data flows sublayer number receiving.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described load control strategy comprises decision variable, acceptance or refusal access request or the probability numbers of handover request or the concrete form representing to count table, curve or analytical expression accepted or refuse access request or handover request.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described user mobility information comprises the information of rate travel, switching frequency and/or the historical load numerical value of mobile terminal.
Heterogeneous wireless network resource management architecture system according to a further aspect of the invention, described load controlled entity LCE is connected with described policy mappings entity PME, described traffic monitoring entity TME and described overall sublayer binding strategy decision entity GSSDE respectively with the connected mode of control plane;
Described traffic monitoring entity TME is connected with described combined loading Control Server JLCS with the connected mode of control plane;
Described load controlled entity LCE is connected with described mobile terminal and gateway respectively with the connected mode of datum plane.
According to a further aspect in the invention, also provide a kind of heterogeneous wireless network resource management architecture method, the method comprises:
Load controlled entity LCE in each Access Network obtains the user mobility information of each Access Network and the load state information of each Access Network;
The switch call intensity of flow numerical value of traffic monitoring entity TME in each Access Network based on obtain each Access Network from the described user mobility information of described load controlled entity LCE;
Described user mobility information and the described load state information of combined loading Control Server JLCS in core net based on from described traffic monitoring entity TME generates load mobility information table, and described load mobility information table is sent to described traffic monitoring entity TME;
Strength values and the described load mobility information table that the described switch call of each policy mappings entity PME based in described traffic monitoring entity TME flowed, the load control strategy that generates described policy mappings entity place Access Network, and described load control strategy is sent to described load controlled entity LCE, described load controlled entity LCE carries out described load control strategy to determine whether allowing each mobile terminal to access or switch to described policy mappings entity PME place Access Network
In the time that described policy mappings entity PME allows described mobile terminal access or switches to described policy mappings entity PME place Access Network,
Described load controlled entity LCE obtains layered data flows sublayer binding information;
Layered data flows sublayer binding information, the generation layered data flows sublayer binding strategy of overall sublayer binding strategy decision entity GSSDE in core net based on from described load controlled entity LCE;
The described layered data flows sublayer binding strategy of described load controlled entity LCE based on from described overall sublayer binding strategy decision entity GSSDE carried out described layered data flows sublayer binding strategy, to determine the number of the data sublayer that described load controlled entity LCE place Access Network transmitted.
According to a further aspect in the invention, a kind of heterogeneous wireless network system is also provided, described heterogeneous wireless network system is LTE/WLAN heterogeneous wireless network, it adopts the heterogeneous wireless network resource management architecture system described in any one in claim 1 to 4 to carry out wireless network resource management, wherein
Between described traffic monitoring entity TME in each LTE community, adopt respectively X2 interface interconnected;
Between described traffic monitoring entity TME in each LTE community and the physical entity of LTE core net, adopt S1 interface inter-link;
Between described traffic monitoring entity TME in described traffic monitoring entity TME in each WLAN and each LTE community and between the physical entity of LTE core net, be connected by close coupling interface respectively, wherein,
Be that communication interface based on IP tunneling is connected by close coupling interface respectively between described traffic monitoring entity TME in described traffic monitoring entity TME in each WLAN and each LTE community and between the physical entity of LTE core net;
Combined loading Control Server JLCS and overall sublayer binding strategy decision entity GSSDE are arranged in the physical entity of described LTE core net;
Described traffic monitoring entity TME in each LTE community, described load controlled entity LCE and described policy mappings entity PME are positioned at base station physical entity, or, be positioned at the physical entity of the RRM server that is independent of base station;
Described traffic monitoring entity TME in each WLAN, described load controlled entity LCE and described policy mappings entity PME are positioned at access point physical entity, or, be positioned at the RRM server physical entity that is independent of access point.
Compared with prior art, the present invention can have the following advantages:
The present invention is by adopting load control strategy generative process and layered data flows scheduling process, can dynamically optimize resource management process, realize adaptive RRM, especially two order asset management functions of the load controlled entity in the present invention, can concentrate and realize efficiently the multinomial technical goal of RRM, make this system in completing load control, complete the scheduling of layered data flows, realize mobile subscriber's unified management, optimized resource management architectures.
The invention provides efficient heterogeneous network RRM framework, compare conventional art and realized preferably heterogeneous network RRM framework.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation of the heterogeneous wireless network resource management architecture system of first embodiment of the invention;
Fig. 2 is according to the two order asset management functions structural representations of (Load Control Entity is called for short LCE) of load controlled entity in the heterogeneous wireless network resource management architecture system of first embodiment of the invention;
Fig. 3 is according to the schematic flow sheet of the heterogeneous wireless network resource management architecture method of second embodiment of the invention;
Fig. 4 is according to the schematic flow sheet of user's access of second embodiment of the invention;
Fig. 5 is according to the schematic flow sheet of the generation load control strategy of second embodiment of the invention;
Fig. 6 is according to the schematic flow sheet of the scheduling layered data flows of second embodiment of the invention;
Fig. 7 is according to the exemplary plot of the networking plan of the heterogeneous wireless network system of third embodiment of the invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each feature in each embodiment and each embodiment in the present invention can mutually combine, and the technical scheme forming is all within protection scope of the present invention.
In addition, can in the computer system such as one group of computer executable instructions, carry out in the step shown in the flow chart of accompanying drawing, and, although there is shown logical order in flow process, but in some cases, can carry out shown or described step with the order being different from herein.
the first embodiment
Fig. 1 is according to the structural representation of the heterogeneous wireless network resource management architecture system of the embodiment of the present invention, and the each several part composition of the present embodiment is described below in conjunction with Fig. 1.
In embodiments of the present invention, in heterogeneous wireless network resource management architecture system (also can be described as heterogeneous wireless network resource management system), comprise following logical functional entity: load controlled entity (Load ControlEntity, be called for short LCE), traffic monitoring entity (Traffic Monitor Entity, be called for short TME), policy mappings entity (Policy Mapping Entity, be called for short PME), combined loading Control Server (JointLoad Control Server, be called for short JLCS) and overall sublayer binding strategy decision entity (GlobalSubstream Subscription Decision Entity, be called for short GSSDE), describe the function of each entity below in detail.
Fig. 1 illustrates the RRM framework that comprises multiple Access Networks.In the present embodiment, in each Access Network inside, all comprise following logical functional entity: load controlled entity LCE, traffic monitoring entity TME and policy mappings entity PME, and above-mentioned entity is all according to the connected mode of control plane shown in Fig. 1 and overall JLCS and GSSDE interactive information.Describe the function of each logical functional entity below in detail as an example of certain Access Network example.
Load controlled entity (Load Control Entity, be called for short LCE), its connected mode with control plane and TME, PME is connected with GSSDE, its connected mode with datum plane is connected with gateway and mobile terminal, it is for obtaining the load state information of current Access Network, user mobility information and data flow sublayer binding information, obtain and carry out the load control strategy of PME generation to determine whether allowing each mobile terminal access or switch in Access Network, and obtain and carry out data flow sublayer binding strategy that GSSDE the generates number with the data sublayer determining Access Network and transmitted.
LCE has two order asset management functions, and Fig. 2 is two order asset management functions structural representations of load controlled entity in the embodiment of the present invention, describes below in conjunction with Fig. 2 the two order asset management functions structures that LCE adopts in detail.
The two order asset management functions structures that LCE adopts have access order asset management functions and child level resource management function.
Wherein, access order asset management functions, it is responsible for the access control of mobile terminal UE (subscriber equipment), and the load control strategy based on obtaining is realized load balancing control.This function towards to as if do not access in Access Network and request access Access Network in mobile terminal UE or accessed in other Access Networks and request is switched to the mobile terminal UE of this Access Network.
Particularly, access order asset management functions is that LCE receives and carry out the load control strategy from PME, and the load state information of obtaining and user mobility information are sent to a kind of function in TME.
Child level resource management function, it is responsible for realizing the scheduling of the layered data flows to mobile terminal UE (subscriber equipment), distributes layered data flows to carry out congestion control based on data flow sublayer binding strategy.This function towards to as if allowed access or switch mobile terminal UE.
Particularly, child level resource management function is that the layered data flows sublayer binding information obtaining is sent to GSSDE by LCE, and the GSSDE that LCE received and carried out heterogeneous network generates based on layered data flows sublayer binding information the individual-layer data that layered data flows sublayer binding strategy sends with forward gateway and flows to a kind of function in the mobile terminal UE that allows access.Wherein, layered data flows sublayer binding information comprises the information such as layered data flows sublayer number and the layered data flows sublayer number of current Access Network mobile terminal UE expectation reception that current Access Network should forward.
Traffic monitoring entity (Traffic Monitor Entity, be called for short TME), its connected mode with control plane is connected with PME, LCE and JLCS, the switch call intensity of flow numerical value going out based on user mobility information estimator, the load state information of the current Access Network obtaining from LCE and user mobility information are sent to JLCS, and the load mobility information table of the whole network obtaining from JLCS and switch call intensity of flow numerical value are sent to PME as input parameter.
Particularly, in the time having mobile terminal UE to send new access request or handover request, mobile terminal UE sends request to LCE, LCE is sent to the load state information of the current Access Network obtaining and user mobility information in TME, TME is sent to JLCS according to the load state information and the user mobility information that obtain from LCE, and TME calculates current period call-flow strength values according to the user mobility information obtaining.
It should be noted that, can be calculated and be obtained call-flow strength values by the curve mode of the numerical value of load state information, wherein, user mobility information comprises the information such as rate travel, switching frequency and/or the historical load numerical value of mobile terminal.Load state information and the mobility information of the current Access Network that TME obtains TME as the external interface of each Access Network in the RRM framework in the embodiment of the present invention report JLCS, and, from JLCS, obtain the load mobility information table of the whole network, and the call-flow strength values that load mobility information table and the calculating of current period, the whole network are obtained sends in PME as input parameter.
Policy mappings entity (Policy Mapping Entity, be called for short PME), its connected mode with control plane is connected with TME and LCE, it is according to the input parameter receiving from TME, that is load mobility information table and switch call intensity of flow numerical value, the load control strategy that generates current current Access Network of period by RRM policy mappings algorithm, is sent to the load control strategy of generation in LCE.
Please refer to Fig. 1, PME is according to the load mobility information table of current period, the whole network and call-flow strength values, carry out RRM policy mappings algorithm to generate load control strategy, wherein, load control strategy can be for accepting or refuse decision variable, acceptance or refusal access request or the probability numbers of handover request or the concrete form representing to count table, curve or analytical expression of access request or handover request.Wherein, policy mappings algorithm can adopt the modes such as simple mapping, Linear Mapping or semi-Markov decision model.
It should be noted that, the current period that PME generates, the load control strategy of current Access Network have comprised calling Access Control Policy and the load balancing etc. for current period, current Access Network, more specifically, load control strategy can be to accept or refuse or accept access request or handover request with certain probability, and carries out or do not carry out or carry out load balancing operation etc. with certain probability.
Core net in heterogeneous wireless network resource management architecture system (also can be described as heterogeneous wireless network resource management system) in the present embodiment also comprises following logical functional entity: combined loading Control Server JLCS and overall sublayer binding strategy decision entity GSSDE.
Combined loading Control Server JLCS, its connected mode with control plane is connected with TME, the load state information of the Access Network that its TME based in each Access Network obtains and user mobility information, generate the load mobility information table of current period the whole network, and the load mobility information table of generated the whole network is sent to each Access Network.
Overall situation sublayer binding strategy decision entity (Global Substream Subscription DecisionEntity, hereinafter to be referred as GSSDE), its connected mode with control plane is connected with LCE, its LCE for the each Access Network inside to storage obtains layered data flows sublayer binding information and carries out decision making layered data flows sublayer binding strategy, and sends to the LCE of each access network to carry out layered data flows sublayer binding strategy.It should be noted that, JLCS and GSSDE are independent of each Access Network, respectively with the RRM framework logic entity interactive information of each Access Network inside.
Particularly, JLCS is used for receiving and store load state information and the mobility information of each Access Network, and generates the load mobility information table of the whole network, sends to each Access Network.GSSDE receives from the layered data flows sublayer binding information of LCE, and based on this Information generation layered data flows sublayer binding strategy, and the LCE that this strategy is sent in each Access Network carries out, to realize the child level resource management function of LCE.
It should be noted that, layered data flows sublayer binding information comprises the layered data flows sublayer binding number of current Access Network layered data flows sublayer binding number, mobile terminal expectation and the layered data flows status transmission of each Access Network.GSSDE determines the layered data flows sublayer binding strategy of each Access Network according to these information, that is determines to the number of the layered data flows sublayer of each Access Network transmission.
The present invention is by adopting said system, especially two order asset management functions of the load controlled entity in the present invention, can dynamically optimize resource management process, realize adaptive RRM, make this system in completing load control, complete the scheduling of layered data flows, realize mobile subscriber's unified management, optimized resource management architectures.
the second embodiment
Fig. 3 is the schematic flow sheet of the heterogeneous wireless network resource management architecture method (also can be called heterogeneous wireless method for managing resource) according to the embodiment of the present invention, describes each step of the present embodiment below in conjunction with Fig. 3 in detail.
Step 310, load controlled entity LCE in each Access Network obtains load state information and the user mobility information of current each Access Network of period, and in each Access Network, traffic monitoring entity TME obtains the switch call intensity of flow numerical value of each Access Network based on user mobility information estimator.
Wherein, user mobility information comprises the information of rate travel, switching frequency and/or the historical load numerical value of mobile terminal.
The curve mode of traffic monitoring entity in each Access Network based on load state information calculates described call-flow strength values.
Step 320, the load state information of combined loading Control Server JLCS in core net based on each Access Network and the load mobility information table of the current period the whole network of user mobility Information generation, and load mobility information table is sent to traffic monitoring entity TME.
Step 330, the switch call intensity of flow numerical value of each policy mappings entity PME based in traffic monitoring entity TME and from the load mobility information table of the whole network of the current period overall situation of combined loading Control Server JLCS, generate the load control strategy of current period policy mappings entity PME place Access Network, and described load control strategy is sent to described load controlled entity LCE, described load controlled entity LCE carries out described load control strategy to determine whether allowing each mobile terminal UE to access or switch to described policy mappings entity PME place Access Network.
Particularly, each policy mappings entity adopts RRM policy mappings algorithm, generate the load control strategy of policy mappings entity place Access Network described in the current period, wherein, RRM policy mappings algorithm is the mapping algorithm of Linear Mapping algorithm or semi-Markov decision model.
It should be noted that, load control strategy is the decision variable of accepting or refuse newly calling or switch call, or generates the described probability numbers of accepting newly calling or switch call, or generates the concrete form of described several table, curve or analytical expression.
In the time that policy mappings entity PME allows mobile terminal UE access or switches to policy mappings entity PME place Access Network, can further carry out the operation of step 340.
Step 340, load controlled entity LCE obtains the layered data flows sublayer binding information of mobile terminal UE, overall sublayer binding strategy decision entity GSSDE in core net generates the layered data flows sublayer binding strategy of each Access Network based on layered data flows sublayer binding information, load controlled entity LCE is based on carrying out layered data flows sublayer binding strategy from the layered data flows sublayer binding strategy of overall sublayer binding strategy decision entity GSSDE, to determine the number of the layered data flows sublayer that load controlled entity LCE place Access Network transmitted.
Wherein, layered data flows sublayer binding information comprises the layered data flows sublayer number that Access Network layered data flows sublayer, policy mappings entity PME place binding number, mobile terminal are expected, and the transmission status of each Access Network.Described binding strategy is the layered data flows sublayer number that Access Network should transmit, and sends to the described load controlled entity LCE of this Access Network to connect execution layered data flows sublayer binding strategy.Load controlled entity LCE provides data transmission interface for mobile terminal, and carries out congestion control operation.
Step 350, in the time not allowing described mobile terminal UE access or switch to described policy mappings entity place Access Network, request accesses or switches to the Access Network at described policy mappings entity place again, or request accesses or switch to other Access Network again.
For example, when there being mobile terminal UE to send new calling or switch call to network, taking integrated LTE/WLAN heterogeneous wireless network as example, describe the detailed step of the user access of RRM framework in integrated LTE/WLAN heterogeneous wireless network below in detail.
Fig. 4 is the schematic flow sheet of the user's access in the heterogeneous wireless network resource management architecture method (also can be called heterogeneous wireless network method for managing resource) according to second embodiment of the invention, and the detailed step of the user access of RRM framework of the present invention in integrated LTE/WLAN heterogeneous wireless network is described below in conjunction with Fig. 4.
Step 41, in the time that mobile terminal UE sends access request or handover request to the LCE of current Access Network, current Access Network is carried out load control strategy generative process, determines whether to allow this mobile terminal UE access or switches in asked network according to the load control strategy generating.
More specifically, the access request in step 41 can be new access request of calling out, and can be also the calling access request of horizontal or vertical switching, and the load control strategy generative process described in step 41 is repeated asynchronously by each Access Network equally.
Particularly, the detailed process of load control strategy generative process as shown in Figure 5.Fig. 5 is according to the schematic flow sheet of the load control strategy generative process of the heterogeneous wireless network resource management architecture method (also can be described as heterogeneous wireless network method for managing resource) of second embodiment of the invention, describes each step below in detail.
Particularly, the present embodiment, taking integrated LTE/WLAN heterogeneous wireless network as example, describes each step in detail.
Step 51, the load state information of obtaining and mobility information are sent to TME by LCE, and TME estimates switch call intensity of flow numerical value based on mobility information.
Step 52, load state information and mobility information are reported JLCS by TME, counted load state information and the user mobility information of the whole network by JLCS, and generate the load mobility information table of the whole network.
Step 53, TME dynamically obtains the load mobility information table of the whole network from JLCS.
Step 54, load mobility information table, the call-flow strength values of the whole network are sent to PME by TME, and load mobility information table and the call-flow strength values of PME based on the whole network generates load control strategy.
Step 55, PME sends to LCE by load control strategy and carries out.
More specifically, for integrated LTE/WLAN heterogeneous wireless network, JLCS is positioned at the inside of Evolved Packet Core EPC (Mobility Management Entity/gateway, MME/S-GW).
It should be noted that, step 51 can repeat asynchronously to step 52 and step 53 to 55.
Step 42, LCE carries out load control strategy, if this mobile terminal UE is denied access, this mobile terminal UE is attempted the Access Network that access is asked again or is selected other Access Networks to carry out access request or handover request.
Step 43, if this mobile terminal UE is allowed to access, current Access Network is carried out layered data flows scheduling process, for user provides data transport service.
Particularly, the detailed process of layered data flows scheduling process as shown in Figure 6, Fig. 6 is according to the schematic flow sheet of the layered data flows scheduling of the heterogeneous wireless network resource management architecture method (also can be described as heterogeneous wireless network method for managing resource) of second embodiment of the invention, describes each step below in detail.
Step 61, LCE collects the layered data flows sublayer information of mobile terminal UE;
Step 62, LCE to GSSDE, and makes overall layered data flows sublayer binding strategy by GSSDE by the layered data flows sublayer information reporting of mobile terminal UE;
Step 63, layered data flows sublayer binding strategy is sent to LCE by GSSDE, LCE carries out the forwarding of the layered data flows that comes from GW (gateway) according to layered data flows sublayer binding strategy, for mobile terminal UE provides data transmission interface, and carry out congestion control operation;
Step 64, GW is transmitted to mobile terminal UE by layered data flows via LCE.
More specifically, for integrated LTE/WLAN heterogeneous wireless network, GSSDE is positioned at Evolved Packet Core EPC (Mobility Management Entity/gateway, MME/S-GW) inside.
More specifically, step 61 can repeat asynchronously with step 62 to step 64.
The inventive method, by adopting load control strategy generative process and layered data flows scheduling process, can dynamically optimize resource management process, realize adaptive RRM, make the inventive method in completing load control, complete the scheduling of layered data flows, realize mobile subscriber's unified management, optimized resource management architectures.
the 3rd embodiment
Fig. 7 is according to the schematic flow sheet of the networking plan of the heterogeneous wireless network system of third embodiment of the invention, and the networking plan of RRM architecture technology is described below in conjunction with Fig. 7.
In the present embodiment, heterogeneous wireless network system is LTE/WLAN heterogeneous wireless network, and it adopts the heterogeneous wireless network resource management system in the first embodiment to carry out wireless network resource management.
According to the standard of existing Long Term Evolution (Long Term Evolution is called for short LTE) system, interconnected by X2 interface between LTE community, between LTE community and LTE core net, pass through S1 interface inter-link.As shown in the figure, intercouple as example with 2 GeLTE communities and 1 WLAN, in the integrated LTE/WLAN heterogeneous wireless network of employing RRM architecture system of the present invention, between TME in LTE community, adopt X2 interface interconnected, and adopt S1 interface inter-link between TME in GeLTE community and the physical entity of LTE core net.JLCS and GSSDE are all positioned at the physical entity of LTE core net.
Between TME in TME Yu LTE community in WLAN, and, between the TME in WLAN and the physical entity of LTE core net, be connected by certain close coupling interface, for example, communication interface that can be based on IP tunneling.
TME, the LCE and the PME that are positioned at LTE community can be positioned at base station physical entity, also can be positioned at the RRM server physical entity that is independent of base station; TME, the LCE and the PME that are positioned at WLAN can be positioned at access point (AP) physical entity, also can be positioned at the RRM server physical entity that is independent of AP.
Situation for multiple LTE community and multiple WLAN intercouples, and networking plan is followed principle of identity.
The combination of the present embodiment based on system of the present invention and heterogeneous network, has solved the resource management architecture problem of integrated LTE and wlan network, is applicable to the scheduling process of real network, is easy to realize in network.
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 the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Although the disclosed execution mode of the present invention as above, the execution mode that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technical staff in any the technical field of the invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can do any amendment and variation what implement in form and in details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
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| CN104955128B (en) * | 2014-03-26 | 2020-09-15 | 中兴通讯股份有限公司 | A load information transmission method and system, and network element |
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Non-Patent Citations (3)
| Title |
|---|
| 《TD-SCDMA 无线接入网自主负载均衡管理方法》;张恒等;《通信学报》;20110131;第32卷(第1期);第9-19页 * |
| 张恒等.《TD-SCDMA 无线接入网自主负载均衡管理方法》.《通信学报》.2011,第32卷(第1期),第9-19页. |
| 李明欣.《异构融合网络移动性管理的若干关键技术研究》.《中国博士学位论文全文数据库 信息科技辑》.2010,第61-75页. * |
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