CN102497660A - Multi-service concurrency accessing system and accessing method used for heterogeneous wireless network - Google Patents
Multi-service concurrency accessing system and accessing method used for heterogeneous wireless network Download PDFInfo
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Abstract
The invention discloses a multi-service concurrency accessing system and an accessing method used for a heterogeneous wireless network. The accessing system comprises a multi-mode user side, a heterogeneous wireless network and a wireless resource management node, wherein the multi-mode user side comprises a concurrency accessing control module used for service accessing application and service accessing control; the heterogeneous wireless network comprises an SCA_A module used for completing the network monitoring and interacting with the wireless resource management node; and the wireless resource management node is used for monitoring the resources of the heterogeneous wireless network and executing the concurrency network accessing decision. According to the system and the method, the interaction is conducted by an SCA_C module, the SCA_A module and an SCA_S module, in the range covered by a plurality of networks simultaneously, and when the multi-service of a user is in concurrency accessing, the network resource condition, the friendliness, the network expense and the service inquiry message information can be synthesized, an optimal network can be selected, the service quality can be guaranteed, and the maximum utilization of the resources can be achieved.
Description
Technical field
The invention belongs to the radio network technique field, be specifically related to the connecting system and the cut-in method of heterogeneous wireless network.
Background technology
The isomery UNE merges the multiple network technology, can more more novel business be provided for the user.At present, the isomery fusion that the isomery UNE isomery that mainly contains the interconnection of 3G network and wlan network merges, isomery fusion, WLAN and the WiMAX of UMTS network and WiMAX network interconnection interconnect etc.At isomery UNE environment; Portable terminal has a plurality of wireless antennas; When portable terminal present position during simultaneously by a plurality of network coverage, the Business Stream that moves on this portable terminal can select to carry the access network of this Business Stream according to demand, promptly carry out network selecting.
In UNE, to having different resource, multiple different network of serving being provided, key is how to ask according to each professional QoS, for it provides optimum radio bearer.At document: among the ADual-mode Mobile Station Module for WLAN/UMTS Interworking Systems; Designed a kind of dual-mode subscriber; Can select to insert WLAN or UMTS network according to the utility function of two networks; But all business of dual-mode subscriber can not be concurrent the selection various network, and professional friendliness, user preferences etc. are not considered.At document: propose to calculate a bigger network of value of utility among the A novel network selection mechanism in an integrated wlan and umts environment using AHP and modified GRA and insert with analytic hierarchy process (AHP) and gray scale correlation method; Business is not distinguished, all voice and packet data concurrent services can only select same network to insert according to value of utility.
Summary of the invention
To the objective of the invention is the problems referred to above of existing when carrying out network insertion in the existing isomery UNE in order solving, to have proposed a kind of concurrent connecting system of multi-service that is used for heterogeneous wireless network.
Technical scheme of the present invention is: a kind of concurrent connecting system of multi-service that is used for heterogeneous wireless network comprises: multimode user side, heterogeneous wireless network and radio resources management node, wherein,
The multimode user side comprises concurrent access control module, is used for the control of service access application and service access;
Heterogeneous wireless network comprises the SCA_A module, is used to accomplish network monitor, carries out alternately with described radio resources management node simultaneously;
The monitoring resource that radio resources management node is used for heterogeneous wireless network inserts decision-making with the execution parallel network.
Above-mentioned concurrent access control module is included in the convergence sub-layer module of IP layer and the interpolation of data link interlayer, and the SCA_C module of on the IP layer, adding,
Described convergence sub-layer module is used to detect new business, if detectedly be new business then trigger described SCA_C module and send query message that the convergence sub-layer module is carried out service distributing according to the Query Result that the SCA_C module receives.
Described SCA_C module is used for the work of collaborative convergence sub-layer module, when the convergence sub-layer module detects new business, triggers the SCA_C module and sends the service inquiry message, calculates for radio resources management node and uses; Receive the Query Result of radio resources management node loopback simultaneously, be submitted to the convergence sub-layer module.
Above-mentioned radio resources management node comprises and is added on the SCA_S module of adding on the IP layer,
Described SCA_S module is used for forming peer-entities with described SCA_C module; Carry out the mutual of service inquiry message and operational decision making message with the multimode user side, carry out the mutual of network parameter query message and network parameter response message with the SCA_A module of heterogeneous wireless network.
In order to address the above problem, the invention allows for a kind of multi-service and accessing method that is used for heterogeneous wireless network, specifically comprise the steps:
S1. when the multimode user produced new business, the convergence sub-layer module of multimode user side detected new business, triggered SCA_C module package service inquiry message, selected preassigned network interface in the heterogeneous wireless network, was sent to radio resources management node;
S2. radio resources management node receives the service inquiry message, obtains IP address, extracts business information, and the SCA_S module of radio resources management node is sent the SCA_A module that the network parameter query message is given heterogeneous wireless network;
S3. the SCA_S module of radio resources management node is received the network parameter response message of the SCA_A module loopback of heterogeneous wireless network; Extract the resource information of each network in the heterogeneous wireless network; Joint business query message information is made a strategic decision, and encapsulation operational decision making message is recycled to the multimode user;
S4. after the multimode user receives the operational decision making message of radio resources management node loopback, parse the result of decision in the message and select appropriate network insertion according to the result of decision.
Above-mentioned service inquiry message information comprises type of service, QoS of survice, user preference.
The described concrete analytic hierarchy process (AHP) that uses of making a strategic decision of step S3.
Beneficial effect of the present invention: system and method for the present invention carries out alternately through SCA_C module, SCA_A module and SCA_S module; In the scope that a plurality of networks cover simultaneously; When carrying out the concurrent access of user multi-service, integrated network resource situation, professional friendliness, charges, service inquiry message information are selected optimum network; Guarantee quality of service, reach the maximum use of resource; And can guarantee quick deployment, greatly reduce the expense expense.
Description of drawings
Fig. 1 is the concurrent connecting system sketch map of heterogeneous wireless network multi-service of the present invention.
Fig. 2 is a dual-mode subscriber protocol stack sketch map of the present invention.
Fig. 3 is a CRM protocol stack sketch map of the present invention.
Fig. 4 is the concurrent access scene of the multi-service of an embodiment of the invention sketch map.
Fig. 5 is the interaction diagrams of the CONVERGE module and the SCA_C module of the embodiment of the invention.
The message interaction flow chart of the CRM of Fig. 6 embodiment of the invention and AP, NODE_B.
Fig. 7 is the analytic hierarchy process (AHP) sketch map of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and concrete embodiment the present invention is done further explanation:
Understand principle of the present invention, the course of work for the ease of those of ordinary skill in the art, at first the important vocabulary of using in of the present invention done as giving a definition:
(1) heterogeneous wireless network: the network coexisted network of multiple communication type.
(2) multimode user (UE): the user terminal in the heterogeneous wireless network can communicate with a plurality of networks simultaneously.
(3) radio resources management node (CRM): be used for the heterogeneous wireless network monitoring resource and carry out parallel network access decision-making.
(4) the concurrent access of multi-service: refer to that the multimode user can move a plurality of business simultaneously, each service access can select corresponding network to insert.
(5) user preference: the user is to the preference degree of access network.
(6) professional friendliness: refer to the tenability of network for different service types, be better than WLAN such as Cellular Networks for the tenability of speech, then Cellular Networks just is higher than the friendliness of WLAN for voice service for the friendliness of voice service.
(7) analytic hierarchy process (AHP): refer to that multiobjective decision-making problem with a complicacy is as a system; Target is decomposed into a plurality of targets or criterion; And then be decomposed into some levels of many indexs (or criterion, constraint); Calculate the single preface of level (flexible strategy) and total ordering through qualitative index fuzzy quantization method, with systems approach as target (many indexs), multi-scheme optimum decision.
(8) service inquiry message: the message that is sent to CRM by the multimode user; Which network is business in order to inquire about current generation should select, and can include but not limited to: message content source IP, purpose IP, source port, destination interface, type of service, QoS of survice and user preference.
(9) operational decision making message: the message by CRM send back to the multimode user can include but not limited to: source IP, purpose IP, source port, destination interface, operational decision making information (being that which network insertion is business should select).
(10) network parameter query message: be sent to the message of SCA_A module by CRM, the parametric statistics amount that needs in order to inquiry.
(11) network parameter response message: be recycled to the message of CRM by the SCA_A module, to CRM report relevant parameters statistic.
(12) TOS: COS, pointed out the requirement of time delay, throughput and reliability aspect.
In heterogeneous wireless network, select which network, all have great significance for user experience and network efficiency.Stand in user's angle, hope can have more independence power to the business of oneself understanding, and selects or give fully network selecting for the other business by network assistance; Stand in network perspective, more hope satisfying on the basis of user experience, more effectively, balancedly utilize Internet resources.
The present invention just is being based on above-mentioned consideration and is designing.
In WLAN and the 3G/LTE UNE, WLAN and 3G/LTE network have different features separately: the service traffics that mobile cellular network provides are limited, but propagation delay time is little, and coverage is big; And WLAN can provide higher service traffics, but the time delay of transmission is big, and coverage is little.Both fusions are the inexorable trends of development.Inserting with the WLAN and the 3G/LTE network integration below is that example specifies.
As shown in Figure 1, the concurrent connecting system of multi-service that is used for heterogeneous wireless network of the present invention comprises: multimode user side, heterogeneous wireless network and radio resources management node, wherein,
The multimode user side comprises concurrent access control module, is used for the control of service access application and service access.In the present embodiment, the multimode user side is the dual-mode subscriber end.
Heterogeneous wireless network comprises the SCA_A module, is used to accomplish the network parameter monitoring, carries out alternately with described radio resources management node simultaneously.
The monitoring resource that radio resources management node CRM is used for heterogeneous wireless network inserts decision-making with the execution parallel network.
As shown in Figure 2, here, concurrent access control module is included in the convergence sub-layer module of IP layer and the interpolation of data link interlayer, and the SCA_C module of on the IP layer, adding,
Described convergence sub-layer module is used to detect new business, if detectedly be new business then trigger described SCA_C module and send query message that the convergence sub-layer module is carried out service distributing according to the Query Result that the SCA_C module receives;
Described SCA_C module is used for the work of collaborative convergence sub-layer module, when the convergence sub-layer module detects new business, triggers the SCA_C module and sends the service inquiry message, calculates for radio resources management node and uses; Receive the Query Result of radio resources management node loopback simultaneously, be submitted to the convergence sub-layer module.
In order to be linked into simultaneously among WLAN and the 3G network, need two data link layer modules, i.e. WLAN data link layer module and 3G data link layer module.Two shared unified IP modules of data link layer.Between IP and data link layer, add the convergence sub-layer module, as monitoring new business, foundation and safeguard connect required list, trigger the SCA_C module send the service inquiry message, according to functions such as result of decision shuntings; On the IP layer, add the SCA_C module, be used for and CRM correspondent entity module interactive service query message and operational decision making message information.All the other each layers are accomplished the function of corresponding each layer in the standard ICP/IP protocol respectively.
When the multimode user side produced new customer service, the convergence sub-layer module was received the service request on upper strata, the inquiry business Query List; If there is the result, then shunt, if do not exist according to the result; With the request message buffer memory, trigger the SCA_C module simultaneously and send the service inquiry message; The result of decision of being passed back by CRM that the convergence sub-layer module receives that the SCA_C module submits is created Query List, uses for message inquiry afterwards; When main IP being set being some networks during initialization,, then do corresponding N AT (Network Address Translation) conversion if the result of decision is another network.The work of SCA C module cooperative convergence sub-layer module when the convergence sub-layer module detects new business, triggers the SCA_C module and sends the service inquiry message; The service inquiry message can include but not limited to destination interface, source port, purpose IP, source IP, QoS of survice, type of service and user preference, calculates for CRM and uses; Receive the return result of CRM simultaneously, be submitted to the convergence sub-layer module, handle to do shunting.
Dual-mode subscriber end in the present embodiment has 3G and WLAN communication module simultaneously, increases concurrent access control module simultaneously again, is responsible for the control of service access application and service access, realizes the adaptive streaming between 3G and WLAN interface.Because ICP/IP protocol stack itself lacks the mechanism of service access control, so concurrent access control module need have the new business discovery feature, from the high level data message, obtains destination interface; Source port, purpose IP, source IP; Judge whether business is new business; From the dual-mode subscriber attribute, obtain user preference simultaneously, further form and insert the required relevant parameter (comprising whether business need specify access network and user preference etc.) of decision-making, initiate the service access application to CRM.According to the CRM result of decision, the concurrent access control module of UE need be controlled the network interface of deliveries.Because the various network interface has different IP addresses; So also can carry out according to inserting decision-making in order to realize downlink transfer; This module need start the function of NAT; Revising source IP address is the IP address of access network interface, and the IP head is carried out necessary modifications, and revises the ICI information of IP to lower floor.
As shown in Figure 3, here, radio resources management node CRM is included in the SCA_S module of adding on the IP layer.
Described SCA_S module is used for forming peer-entities with described SCA_C module; Carry out the mutual of service inquiry message and decision-making loopback message with the multimode user side, carry out the mutual of network parameter query message and network parameter response message with the SCA_A module of heterogeneous wireless network.
The peer protocol entity module interactive information of SCA_S module and UE, AP, NODE_B; Wherein, With SCA_C module interactive service query message and the professional response message of UE, with SCA_A module Internet parameter query message and the network parameter response message of AP, NODE_B.Allomeric function is CRM when receiving the service inquiry message that UE sends, and sends the network parameter query message and gives AP and NodeB; After receiving the network parameter response message of both sides, extract network parameter information,, make and insert decision-making in conjunction with type of service and user preference in the queries message; Decision-making is encapsulated in the result of decision in the operational decision making message after finishing, and gives the UE of initiation request through the WLAN loopback.
CRM receives the service inquiry message that the dual-mode subscriber end sends, and extracts Query Information, can include but not limited to destination interface, source port, purpose IP, source IP, TOS, type of service, user preference; Create the network parameter query message simultaneously, be sent to the AP and the NODE_B of overlapping network respectively, obtain the parametric statistics amount of two networks, the parametric statistics amount can include but not limited to load, time delay, reliability, the packet loss of each automatic network; Behind the network parameter response message of receiving AP and NODE_B loopback; Call the weights that analytic hierarchy process (AHP) calculates each factor; Calculate the value of utility of two networks then, higher value is as the result of decision, according to the result of decision; Create the decision-making message and send back to the dual-mode subscriber end, use for dual-mode subscriber end shunting decision-making.
Here, AP and NODE_B refer to the user access point of WLAN and 3G network respectively.AP and NODE_B accomplish outside the basic function of network insertion separately, need to increase the SCA_A module corresponding with CRM, accomplish Internet resources monitoring and statistical function; Carry out alternately simultaneously, can periodically report current network parameter situation to CRM with CRM, perhaps receive the network parameter query message of CRM after; In the SCA_A module; The network parameter information of needs is encapsulated in the network parameter response message, and CRM is given in loopback, calculates for CRM and uses.
Can find out that SCA_C, SCA_A and three modules of SCA_S have been formed service concurrence access (SCA) agreement here, lay respectively among UE, AP/NODE_B, the CRM communication protocol stack that wherein, SCA_C is used for service access request and the control of control local service; SCA_A is used for local resource monitoring and statistics, and SCA_S is used for multi-service and inserts decision-making.
A kind of multi-service and accessing method that is used for heterogeneous wireless network of the present invention specifically comprises the steps:
S1. when the multimode user produced new business, the convergence sub-layer module of multimode user side detected new business, triggered SCA_C module package service inquiry message, selected preassigned network interface in the heterogeneous wireless network, was sent to radio resources management node;
S2. radio resources management node receives the service inquiry message, obtains IP address, extracts business information, and the SCA_S module of radio resources management node is sent the SCA_A module that the network parameter query message is given heterogeneous wireless network;
S3. the SCA_S module of radio resources management node is received the network parameter response message of the SCA_A module loopback of heterogeneous wireless network; Extract the parameter information of each network in the heterogeneous wireless network; Joint business query message information is made a strategic decision, and encapsulation operational decision making message is recycled to the multimode user;
S4. after the multimode user receives the operational decision making message of radio resources management node loopback, parse the result of decision in the message and select appropriate network insertion according to the result of decision.
Above-mentioned service inquiry message information comprises type of service, professional OoS, user preference.
The described decision-making of step S3 specifically can be used analytic hierarchy process (AHP).Analytic hierarchy process (AHP) is the state of the art, no longer is elaborated.
Multi-service here and accessing method are taken all factors into consideration Internet resources, user preference, network to professional friendliness, charges; Utilize analytic hierarchy process (AHP); Draw the weights of each factor to the influence of network decision-making; Calculate the value of utility of each network at last, select the bigger network of value of utility as access network.
For better user's characteristics and the network characteristics of embodying, can customer service be divided into specified network class and CRM decision-making class, wherein, include the preference information of user in the CRM decision-making class for network.For the customer service of specified network class, directly in the network of user's appointment, carry out access control and processing, use the access strategy of specified network self to carry out access control.If this specified network can't provide required business, then directly refusal should business.
For the customer service of CRM decision-making type, by the Internet resources situation of CRM according to type of service, QoS of survice, WLAN and 3G, and professional friendliness, charges factor etc., make a strategic decision according to analytic hierarchy process (AHP).For CRM decision-making type business, according to the difference of business, the importance of decision parameter also can be different when utilizing analytic hierarchy process (AHP) to calculate value of utility.For example for session service, the setting significance level is: time delay is most important, secondly is professional friendliness, load, and user preference and charges are minimum; For background classes, interactive class, stream class service, the setting significance level is: load is most important, secondly is professional friendliness, and user preference and charges are minimum.
The simulation software that this instance is implemented to adopt is OPNET Modeler 14.5.
Specify the implementation process of whole connection control method below with a ftp business.
The concurrent access scene of multi-service is as shown in Figure 4, and dual-mode subscriber is distributed in and is positioned at WLAN and 3G network is overlapping covered, and CRM is positioned at the backstage.
The IP address of two interface of configuration dual-mode subscriber IP layer, wherein WLAN interface IP address is a primary ip address, two IP addresses are adhered to different subnets separately.Dual-mode subscriber when 100s, produces ftp business and far-end server please communicate.During 100s, ftp business is produced by application layer, sets up TCP through the TCP layer and connects, and TCP is packaged into TCP connection request message, through the IP layer, is packaged into the IP message, can pass to the convergence sub-layer module downwards through main IP interface.
Be illustrated in figure 5 as the interaction flow sketch map of convergence sub-layer (CONVERGE) module and SCA_C module.
(1) during initialization, needs to create the packet buffer tabulation and tabulate with the result of decision.
(2) CONVERGE produces and interrupts, and is judged to be upper strata message arrival, analytic message, source IP, purpose IP, source port number, destination slogan, protocol number, the TOS value of acquisition message.It is 6 that CONVERGE obtains protocol number, and the Transmission Control Protocol that expression is used not is a custom protocol.The inquiry result of decision is tabulated, and whether has the result of decision of corresponding source IP, purpose IP, source port number, destination slogan, if do not exist, message is existed in the packet buffer tabulation, if exist, then sends according to the result.At this moment, do not have the result, then the buffer memory message passes to the SCA_C module with information simultaneously.
(3) the SCA_C module obtains CONVERGE and transmits information, produces and interrupts, and extracts the service inquiry message information; Obtain user preference simultaneously, user preference is provided with in user property.SCA_C creates the service inquiry message, binds ICI information, is sent to the IP module.
(4) the service inquiry message of SCA_C becomes the IP message to arrive CONVERGE through the IP module package, and analytic message is judged to be the service inquiry message through protocol number, directly is sent to CRM through the WLAN port.
(5) the operational decision making message of CRM loopback can arrive the SCA_C module, and the SCA_C module is interrupted, and the result of decision is passed to CONVERGE.
(6) CONVERGE inserts result of decision tabulation with decision information; Buffer memory message and data message are subsequently shunted according to the result; If the result is the WLAN interface, do not process, if the result is the 3G interface; Do corresponding N AT conversion, change source IP is that 3G interface IP address and next-hop ip address are 3G access point address.
Be illustrated in figure 6 as the message switching flow chart of CRM and AP, NODE_B.
(1) the SCA_S module of CRM is received the service inquiry message of UE; Extract service inquiry information, create the network parameter query message simultaneously, for ftp business; Little to delay requirement; High to bandwidth requirement, therefore main query argument is the load of two networks, is sent to the AP and the NODE_B of overlay network respectively.
(2) the SCA_A module of AP is received the network inquiry message, obtains the load statistics of current wlan network, and encapsulation network parameter response message can be delivered to CRM.
(3) the SCA_A module of NODE_B is received the network inquiry message, obtains the load statistics of current 3G network, and encapsulation network parameter response message can be delivered to CRM.
(4) after CRM receives the network parameter response message of AP and NODE_B loopback, utilize analytic hierarchy process (AHP), calculate the network result of decision, encapsulation operational decision making message is recycled to UE, supplies the UE shunting to use.
The SCA_S module of CRM uses analytic hierarchy process (AHP) specifically as shown in Figure 7.Take all factors into consideration Internet resources, user preference, professional friendliness, charges factor, utilize analytic hierarchy process (AHP) to calculate each parameter weights, calculate the value of utility of each network then.
In this example, for ftp business, CRM is walking abreast when inserting decision-making, parameter obtain and to calculate detailed process following:
(1) CRM obtains load statistics through the network parameter response message that NODE B and AP reply.3G and WLAN load are obtained from NODE_B and AP respectively, can assess with the throughput of NODE_B and AP respectively.
The n_load=rcvd_data+send_data/ Δ, wherein, rcvd_data, send_data represent the bit number of the data of in delta time, sending and receiving respectively, and Δ is the time window of statistics.
(2) to user preference, can divide no preference, have a preference for WLAN, very preference WLAN, specify to select WLAN, have a preference for 3G, very have a preference for 3G, specify and select 3G.Specify and select WLAN to select 3G to represent that promptly user's type of decision-making is professional with specifying.Present embodiment is set to not have preference, and promptly which network the user for selecting do not require, and then offered load and professional friendliness occupy important function.
(3), can consider the WLAN relative low price in the practical application, available its price advantage for charges.
(4) the service inquiry message content that sends according to the multimode user can obtain type of service: for ftp business, be divided into background business.For ftp business, most important parameter is an offered load, secondly is professional friendliness, and WLAN is higher for the friendliness of ftp business than 3G network, and user preference and charges significance level are minimum.
(5) utilize analytic hierarchy process (AHP) to confirm the weights of each parameter, for ftp business, offered load, professional friendliness, user preference, charges are followed successively by: U
Wlan=(u
1u
2u
3u
4), U
3g=(u
1u
2u
3u
4).
(6) utilize formula
Calculate the value of utility of each network, wherein, b
IjThe normalized value of representing j parameter of i network, m are represented the number of decision networks, are 2 here, and n representes the number of decision parameters, are 4 here.Through calculating, relatively macroreticular is as the result of decision to select value of utility, and the SCA_S module is sealed commentaries on classics in the operational decision making message with the result, is recycled to UE.
When dual-mode subscriber had a plurality of business to produce, each business all will be followed above access process, obtains the result of decision, selected suitable network to insert according to the result of decision, had accomplished the adaptive streaming function of IP to the heterogeneous networks interface.
In the scope that two networks cover simultaneously, dual-mode subscriber and CRM cooperate the adaptive streaming function that realizes between WLAN and 3G interface; During the concurrent access of user multi-service, factors such as integrated network resource, user preference, professional friendliness, charges are selected optimum network, guarantee quality of service, reach the maximum use of resource; Whole cut-in method is revised less to comparatively ripe 3G network, service inquiry, response message are all selected wlan network, to guarantee quick deployment, reduce huge expense expense.Simultaneously, this method can extend to the concurrent access of a plurality of networks, comprehensively uses the resource of each network.
Those of ordinary skill in the art will appreciate that embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from essence of the present invention according to these teachings disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (6)
1. the concurrent connecting system of multi-service that is used for heterogeneous wireless network is characterized in that, comprising: multimode user side, heterogeneous wireless network and radio resources management node, wherein,
The multimode user side comprises concurrent access control module, is used for the control of service access application and service access;
Heterogeneous wireless network comprises the SCA_A module, is used to accomplish network monitor, carries out alternately with described radio resources management node simultaneously;
The monitoring resource that radio resources management node is used for heterogeneous wireless network inserts decision-making with the execution parallel network.
2. the concurrent connecting system of multi-service according to claim 1 is characterized in that, described concurrent access control module comprises the convergence sub-layer module that is added on IP layer and data link interlayer, and the SCA_C module of on the IP layer, adding,
Described convergence sub-layer module is used to detect new business, if detectedly be new business then trigger described SCA_C module and send query message that the convergence sub-layer module is carried out service distributing according to the Query Result that the SCA_C module receives.
Described SCA_C module is used for the work of collaborative convergence sub-layer module, when convergence sub-layer detects new business, triggers the SCA_C module and sends the service inquiry message, calculates for radio resources management node and uses; Receive the Query Result of radio resources management node loopback simultaneously, be submitted to the convergence sub-layer module.
3. the concurrent connecting system of multi-service according to claim 1 and 2 is characterized in that, described radio resources management node comprises and be added on the SCA_S module of adding on the IP layer,
Described SCA_S module is used for forming peer-entities with described SCA_C module; Carry out the mutual of service inquiry message and operational decision making message with the multimode user side, carry out the mutual of network parameter query message and network parameter response message with the SCA_A module of heterogeneous wireless network.
4. a multi-service and an accessing method that is used for heterogeneous wireless network specifically comprises the steps:
S1. when the multimode user produced new business, the convergence sub-layer module of multimode user side detected new business, triggered SCA_C module package service inquiry message, selected preassigned network interface in the heterogeneous wireless network, was sent to radio resources management node;
S2. radio resources management node receives the service inquiry message, obtains IP address, extracts business information, and the SCA_S module of radio resources management node is sent the SCA_A module that the network parameter query message is given heterogeneous wireless network;
S3. the SCA_S module of radio resources management node is received the network parameter response message of the SCA_A module loopback of heterogeneous wireless network; Extract the resource information of each network in the heterogeneous wireless network; Joint business query message information is made a strategic decision, and encapsulation operational decision making message is recycled to the multimode user;
S4. after the multimode user receives the operational decision making message of radio resources management node loopback, parse the result of decision in the message and select appropriate network insertion according to the result of decision.
5. multi-service according to claim 4 and accessing method is characterized in that, the described service inquiry message information of step S3 comprises type of service, QoS of survice, user preference.
6. multi-service according to claim 4 and accessing method is characterized in that, the described concrete analytic hierarchy process (AHP) that uses of making a strategic decision of step S3.
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