CN101616452A - Access selection method and user terminal, network element - Google Patents
Access selection method and user terminal, network element Download PDFInfo
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Abstract
The invention discloses a kind of access selection method, comprise: terminal is according to the type of service of request access service, the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues; Select the reference information from the access that described each network that obtains issues, choose one according to predetermined strategy and insert and select reference information should type of service; Selection issues the network that reference information is selected in the described access of choosing, and inserts this request access service.Accordingly, the invention also discloses a kind of user terminal, network element.The access selection scheme that the present invention proposes does not need to carry out information interaction between the heterogeneous networks, and can guarantee the dissimilar business that terminal request inserts, and can insert corresponding suitable network respectively.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of access selection method, reach a kind of user terminal, network element.
Background technology
In recent years, along with the fast development of wireless technology and the raising day by day of user's request, the speed of Radio Access Network evolution is more and more faster, kind is also more and more, as WLAN (wireless local area network) (WLAN, Wireless LocalArea Network), micro-wave access global inter communication (WiMax, Worldwide Interoperability forMicrowave Access), global system for mobile communications (GSM, Global System for MobileCommunication), code division multiple access inserts (CDMA, Code Division Multiple Access), high-speed packet inserts (HSPA, High Speed Packet Access), Long Term Evolution (LTE, Long TimeEvolution) technology etc.These wireless access technologys all have characteristics and advantage separately at aspects such as the network coverage, power system capacity, fail safe, operation and maintenance costs, can replace other all-network in all respects without any a kind of separate network.Simultaneously, in order to adapt to the flexibility of multiple access technology, increase terminal, multimode terminal is also more and more universal.
Thereupon, the selection problem will appear inserting.The so-called terminal of selecting to be meant under being in multiple wireless network covers that inserts selects a certain network to provide communication service for it, and described multiple wireless network can be different wireless access technologys, also can be for being operated in the same wireless access technology of different frequency range.
The principle that the access selection scheme of having used at present adopts acquiescence first to insert mostly, this principle is the preferred network that a certain network is inserted as terminal, if terminal can't insert this preferred network, then attempts inserting second and selects network, and by that analogy, till accessing terminal to network.The advantage of this scheme is the coupling that do not need network side any, does not promptly need the mutual and corporate management of information between the different nets of network side.But there is the main shortcoming in following two aspects in this scheme: the one, can't satisfy the coupling between different business and the heterogeneous networks, because the preferred network of different business correspondence may not be identical; The 2nd, do not consider heterogeneous networks state of living in, as factors such as load, service quality, thereby it is higher that access delay probability meeting excessive or that access back service quality is relatively poor takes place.
In application number is 200480043933.3 and 200380110852.6 Chinese patent application, propose other two kinds and inserted selection schemes, these two kinds are inserted selection scheme and all need the mutual of information between the network side heterogeneous networks, and insert the adjudicatory power selected all at network side.And between the network side heterogeneous networks information not only bring information overhead alternately, the more important thing is carry out between the different network formats information interaction need various criterion tissue and manufacturer etc. in many ways strength finish jointly, therefore, according to the situation comparatively slowly of Signalling exchange progress between the present heterogeneous networks, this class needs the access selection scheme of network side coupling to be difficult to use in practice.
In addition, also very extensive in the academic research field about inserting the research of selecting, " state-of-art: access control in the heterogeneous wireless network and mobile management (State of the Art:Admission Control and Mobility Management inHeterogeneous Wireless Networks) " delivered in May, 2003 with people such as Ken Murry typical case the most wherein, many afterwards scholars are according to the research thinking of the document, butt joint is gone into the selection scheme and has been carried out extensive studies, but these researchs all are based on network side exists coupling to carry out, therefore all exists with above-mentioned two patent documentations in propose two kinds insert the same very difficult problem of application in practice of selection schemes.
Summary of the invention
The invention provides a kind of access selection method, so that carry out between the heterogeneous networks under the prerequisite of information interaction not needing, guarantee that user terminal can select suitable network to insert corresponding business.
Accordingly, the present invention also provides a kind of user terminal and network element.
The access selection method that the embodiment of the invention proposes, comprise: terminal is according to the type of service of request access service, the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues; Select the reference information from the access that described each network that obtains issues, choose one according to predetermined strategy and insert and select reference information should type of service; Selection issues the network that reference information is selected in the described access of choosing, and inserts this request access service.
The user terminal that the embodiment of the invention proposes, comprise: acquiring unit, be used for the type of service according to the request access service, the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues; Choose the unit, be used for selecting reference information, choose one according to predetermined strategy and insert and select reference information from the access that described each network that obtains issues to should type of service; Access unit is used to select to issue the network that reference information is selected in the described access of choosing, and inserts this request access service.
The network element that the embodiment of the invention proposes comprises: determining unit, be used for definite every kind of type of service that inserts described network element map network, and reference information is selected in corresponding access; Issue the unit, reference information is selected in the access that is used to issue described definite corresponding every kind of type of service.
The access selection method that the embodiment of the invention proposes, by when asking access service, type of service based on this request access service, and reference information is selected in the access of each type of service of correspondence of issuing of each network, user terminal is chosen one according to predetermined strategy and is inserted the network of selecting the reference information correspondence, insert the business that this request inserts, feasible the mutual of information that need between heterogeneous networks, not carry out, and end side can be selected reference information in conjunction with the access that network side issues, and independently selects suitable network to insert.
Description of drawings
Fig. 1 is the schematic flow sheet of the access selection method of embodiment of the invention proposition;
Fig. 2 a is first kind of schematic flow sheet that the network side of embodiment of the invention proposition issues the access selection reference information of corresponding every kind of type of service;
Fig. 2 b is that the end side that the embodiment of the invention proposes selects one to insert first kind of schematic flow sheet selecting reference information;
Fig. 3 a is second kind of schematic flow sheet that the network side of embodiment of the invention proposition issues the access selection reference information of corresponding every kind of type of service;
Fig. 3 b is the third schematic flow sheet that the network side of embodiment of the invention proposition issues the access selection reference information of corresponding every kind of type of service;
Fig. 3 c is that the end side that the embodiment of the invention proposes selects one to insert second kind of schematic flow sheet selecting reference information;
Fig. 4 is the schematic flow sheet of the access selection scheme of the embodiment of the invention one proposition;
Fig. 5 is the structural representation of the user terminal of embodiment of the invention proposition;
Fig. 6 is the structural representation of the access controller of embodiment of the invention proposition.
Embodiment
The access selection scheme that the embodiment of the invention proposes is: when the request access service, type based on this request access service, and reference information is selected in the access of each type of service of correspondence of issuing of each network that receives, user terminal is chosen one according to predetermined strategy and is inserted the network of selecting the reference information correspondence, inserts the business that this request inserts.
Below in conjunction with Figure of description the specific embodiment of the present invention is described.
Fig. 1 is the schematic flow sheet of the access selection method of embodiment of the invention proposition, and concrete process description is as follows:
Step 101: terminal is according to the type of service of request access service, and the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues;
Step 102: terminal is selected the reference information from the access to should type of service that described each network that obtains issues, and chooses one according to predetermined strategy and inserts and select reference information;
Step 103: terminal is selected to issue the network that reference information is selected in the described access of choosing, and inserts this request access service.
The access of corresponding every kind of type of service that each network issues in the above-mentioned steps 101 is selected to comprise in the reference information: the mapping relations of various channel conditions and each service experience mass value.
The reflection of described mapping relations is in the terminal various channel conditions under, when selecting this network insertion this type professional, and each service experience mass value of correspondence acquisition respectively.
Wherein, each network issues flow process that the access of corresponding every kind of type of service selects reference information shown in Fig. 2 a, and concrete process description is as follows:
Step 21: network is collected and has been selected present networks to insert each terminal of this kind type of service business, distinguishes the corresponding service experience mass value that obtains at the residing channel condition of present networks and described each terminal respectively;
Described network is collected and has been selected present networks to insert each terminal of this kind type of service business, respectively the process of the corresponding service experience mass value that obtains can for: network is based on the parameter that influences this kind type of service QoS of described each terminal to report, calculating described each terminal selects present networks to insert this kind type of service when professional, the corresponding respectively service experience mass value that obtains.
Described network is collected and has been selected present networks to insert each terminal of this kind type of service business, respectively the process of the corresponding service experience mass value that obtains also can insert this kind type of service for the selection present networks that: network receives described each terminal to report when professional, the corresponding respectively service experience mass value that obtains, described service experience mass value be described each terminal based on the parameter that influences this kind type of service QoS, calculate.
The service experience mass value obtains by the average packet time delay of calculating access service and the ratio of this access service maximum allowable delay.
Step 22: network is based on corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition of collecting, calculate the terminal that is under this kind channel condition, when selecting present networks to insert this kind type of service professional, the corresponding average service experience mass value that obtains;
Step 23: issue the terminal that is in every kind of channel condition and select present networks to insert this kind type of service when professional, the corresponding average service experience mass value that obtains and the mapping relations of this kind channel condition.
Select the reference information from the access of obtaining in the above-mentioned steps 102, choose a process that inserts the selection reference information shown in Fig. 2 b according to predetermined strategy, concrete process description is as follows:
Step 211: terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value;
Step 212: choose in each service experience mass value of described index acquisition, reference information is selected in the access of maximum service Quality of experience value correspondence.
The access of corresponding every kind of type of service that each network issues in the above-mentioned steps 101 is selected to comprise cost of access information in the reference information.
Wherein, each network issues flow process that the access of corresponding every kind of type of service selects reference information shown in Fig. 3 a, and concrete process description is as follows:
Step 31: network is based on default Access Control Policy, determines the cost of access information of this type when professional that inserts;
Step 32: network issues selects present networks to insert the cost of access information of this kind type of service business.
Select the reference information from the access of obtaining in the above-mentioned steps 102, choose an access according to predetermined strategy and select the process of reference information to be:
Select the reference information from described access of obtaining, choose and comprise the minimum access of cost of access and select reference information.
Certainly, the access of corresponding every kind of type of service that each network issues in the above-mentioned steps 101 is selected also can comprise in the reference information: the mapping relations of various channel conditions and each service experience mass value and cost of access information.
Wherein, each network issues flow process that the access of corresponding every kind of type of service selects reference information shown in Fig. 3 b, and concrete process description is as follows:
Step 311: network is collected and has been selected present networks to insert each terminal of this kind type of service business, distinguishes the corresponding service experience mass value that obtains at the residing channel condition of present networks and described each terminal respectively;
Step 312: network is based on corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition of collecting, calculate the terminal that is under this kind channel condition, when selecting present networks to insert this kind type of service professional, the corresponding average service experience mass value that obtains;
Step 313: network is determined the cost of access information that inserts this type business based on default Access Control Policy;
Step 314: network issues when selecting present networks to insert this kind type of service business, be in the corresponding average service experience mass value that obtains of terminal under every kind of channel condition, with the mapping relations of this kind channel condition, and the cost of access information that inserts this type business.
Select the reference information from the access of obtaining in the above-mentioned steps 102, choose a process that inserts the selection reference information shown in Fig. 3 c according to predetermined strategy, concrete process description is as follows:
Step 3111: terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value;
Step 3112: select in each service experience mass value that described index obtains, each of each service experience mass value correspondence that is not less than preset value inserts selects reference information;
Step 3113: each that select from described inserts to be selected reference information, chooses to comprise the minimum access of cost of access and select reference information.
When in insert selecting reference information, comprising the mapping relations of various channel conditions and each service experience mass value and cost of access information, according to predetermined strategy choose a process that inserts the selection reference information also can for:
Select the reference information from described access of obtaining, choose and comprise the minimum access of cost of access and select reference information; Or
Terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value; And choose in each service experience mass value that described index obtains, reference information is selected in the access of maximum service Quality of experience value correspondence.
Describe the present invention program in detail with a specific embodiment below.
Embodiment one:
In the present embodiment, inserting the selection reference information is that example illustrates with mapping relations and the cost of access information that comprises various channel conditions and each service experience mass value.And inserting and selecting the form that issues with broadcast service Quality of experience correspondence table and cost of access table of reference information is that example illustrates.
The embodiment of the invention one has proposed a kind of network coupled (promptly not needing to carry out between the heterogeneous networks information interaction) that neither needs, and can guarantee novel many network insertions selection scheme of service access suitable networks again.This scheme mainly comprises: at network side, generate service experience quality correspondence table and cost of access table, and broadcast; In end side, terminal inserts selection according to the broadcast message of self preference, channel condition and uppick.
Set forth from network side and end side respectively below, as shown in Figure 4:
Network side:
Step 1a and 1b: at network side, different access networks need periodically be monitored each access of each type of service that corresponding requests inserts in each automatic network and be selected reference information, and broadcasts.Need the access of broadcasting to select reference information to comprise two parts: the one, the service experience mass value of different business under the different channels condition; The 2nd, the cost of access of different business.
Promptly at the control cycle t zero hour, network side is at first collected each access of each type of service that corresponding requests inserts in the present networks and is selected reference information, described access selects reference information to comprise service experience quality correspondence table and cost of access table two kind, below simple some related notions of introducing about service experience mass value and cost of access:
1, service experience mass value
The service experience mass value of professional b in network B, characterized the credit rating that professional b is provided in the network B, the span of service experience quality can with some semantic variants (as outstanding, fine, good,, poor) definition, the service experience mass value determines jointly according to some QoS parameters of professional b: for example b is professional is IP-based audio call (VoIP, Voice over IP) business influences major parameter average packet time delay, delay variation, packet loss of its service quality etc.If only consider of the influence of average packet time delay for service quality, can adopt and come calculation services Quality of experience value in the following method: the average packet time delay of establishing the b business is D, and the professional sustainable maximum delay of b is M, definition E=D/M, span with E is divided into the n section then, and wherein the number of the semantic variant that the value of n and service experience quality are desirable is identical.Just it can be corresponded in the different sections according to the E value of calculating, and the different different value correspondences of Duan Zeyu service experience quality.Take all factors into consideration multiple factors such as time delay, delay variation and packet loss if desired, then can these parametric synthesis computings be obtained a numerical value with certain mathematical operation method, and then be mapped as different service experience mass values according to its codomain, repeat no more herein.
As seen, the computational methods of service experience mass value are: at first with the some kinds of parameters that influence QoS, by a numerical value that obtains after certain mathematical operation of determining; And then its mapping become the service experience mass value.Mapping method is that the numerical value that will obtain after the mathematical operation is included in the different intervals, and each interval all can corresponding service experience quality semantic variant value.The method of interval division be the codomain with this numerical value be divided into n interval, n equals the number of service experience quality value; In a certain order corresponding one by one getting final product carried out with n service experience value in n interval then.
Select reference information to be based on following 2 considerations as inserting the service experience mass value in the embodiment of the invention:
(1) the service experience mass value can be set up unified standard for weighing the service quality of different access networks.In the multiple access technology and the scene of depositing, different access technologies is not quite similar for the quality of service requirement and the criterion of business of the same race.The service experience mass value then is user experience or user's perception, the subjective feeling of the service feature that to be the terminal use provide network.It can be by representing experience and the impression of terminal use to professional and network and reflection current business and the quality of network and the gap between user expectation near the method that quantizes.The quantizating index of service experience quality can with outstanding, fine, good, general, differ from 5 ranks and identify.
(2) the service experience quality can the multiple factor of integrated network service quality, thereby reduces the broadcast signaling expense.The factor that influences QoS is a lot, and as time delay, delay variation, packet loss or the like, the service experience quality provides the judgement of QoS after these combined factors are considered.Network terminal only need be by calculating the service experience quality, and broadcast this value and get final product, and just there is no need all service quality (QoS, Quality of Service) parameter all is broadcast to terminal.
The embodiment of the invention of obtaining about the service experience mass value provides following two kinds of methods:
Method I: network side calculates.Network side waits the calculation services Quality of experience according to some QoS information of user such as time delay, packet loss.Because these information are dispatched or just can be obtained during adaptive coding and modulating at network side, so generally are not need terminal additionally to feed back to network side again.
Method II: end side is directly measured, and can guarantee to obtain the accuracy of service experience mass value like this, gives network side but need increase service experience Mass Calculation module and feedback message in terminal.The at present existing service experience Mass Calculation module that is used in end side, for example terminal quality analyzer (MQA) and service quality administrative system (SQM), so the realization of this method is also very strong.
2, the cost of access of different business
In the embodiment of the invention with the cost of access of different business as the another one broadcast message, be to dock controllability into selection in order to strengthen network side.It for example is the semantic variant of { very high, height, medium, low, very low } with cost of access value sets definition.Cost of access determines that according to network demand network can adopt different criterions to determine cost of access in order to reach different controlled target.When network is reserved as controlled target with resource, can be criterion with resource with network, for example, establish the ratio that certain professional resource of using accounts for its available resources and be a.Can adopt following cost of access design rule: when a 〉=80%, the cost of access value is for very high, and when 80%≤a＜60%, the cost of access value is high; When 60%≤a＜40%, cost of access is got medium; 40%≤a＜20%, cost of access is got low; A≤20%, cost of access are got very low.In a word, after network will determine that the factor of cost of access quantizes, be divided into 5 parts then and determine cost of access.Certainly the set of cost of access value might not be defined as and only get 5 values, and desirable numerical value is many more, can make network more little accurate more to the particle of the control of cost of access, but the raising that can bring computation burden.Determining of cost of access value number is the compromise consideration of performance and complexity;
Step 2a and 2b: generate service experience quality correspondence table and cost of access table according to the information of collecting.
Owing to be in the user under the different channels condition, the professional service experience quality that obtains of the same race obviously can be not identical, therefore network need be monitored the service experience mass value of terminal under the different channels condition, and channel condition is divided into some grades, set up the correspondence table of a channel condition and service experience quality, the channel condition of different business and service experience quality correspondence table can periodically update and broadcast.The correspondence table of this channel condition and service experience quality is called service experience quality correspondence table, has provided an example in the Table I.
Table I:
| Channel grade | ??I | ??II | ??III | ??IV |
| The service experience quality | Outstanding | Fine | Generally | Generally |
The quantity of service experience quality correspondence table is identical with the class of business quantity that can support in the network.The generation method of service experience quality correspondence table is: at first with the user's service experience mass value that obtains, classify according to class of business and channel condition; All service experience mass values that will belong to then under same class of business and the same channel condition carry out arithmetic average, can certainly adopt other algorithm, to obtain the value of the service experience quality of such business under this channel condition; At last, the value with these service experience quality is organized into table.
And the structure of the cost of access table that network is safeguarded is the different cost of access of different business correspondence;
Step 3: moment t to t+T constantly between, wherein T is a control cycle, these two tables that heterogeneous networks will be collected are broadcasted in its coverage.All can have broadcast channel in different communication networks, the access that proposes in the embodiment of the invention is selected reference information can be put on the broadcast channel of heterogeneous networks to carry.Can certainly in different networks, redefine a broadcast channel and carry access selection reference information specially.
, forward step 1a to and continue to repeat above-mentioned steps during the moment at t+T.
End side:
When the request access service, terminal need be carried out the network insertion selection, and concrete steps are as follows:
Step 11: reference information, i.e. service experience quality correspondence table and cost of access table are selected in the access of collecting all alternative network broadcast transmissions;
Step 12: obtain the channel grade information of terminal in all alternative network, this information is used for the value of the expectation access service Quality of experience of consumer positioning, estimates that access service Quality of experience value is to be used for representing estimating behind the accessing terminal to network service experience mass value that can obtain;
Step 13: type of service of asking according to terminal channel grade, terminal and service Quality of experience correspondence table obtain in the heterogeneous networks service experience mass value of institute's requested service is promptly estimated access service Quality of experience value;
Step 14: cost of access professional in the reference information is selected in the value of access service Quality of experience and access on the estimation, carries out network insertion according to the preference of terminal setting and selects.The preference that terminal is set can be made as when guaranteeing to estimate that the access service Quality of experience is higher than a certain thresholding, selects the minimum network of cost of access as selected network; If perhaps the user values the most to service quality, can select to estimate that the network of access service Quality of experience maximum is as selected network; If perhaps the user values the most to cost of access, can select the minimum network of cost of access as selected network.
After finishing the access selection, user terminal is carried out to selected network transmission access and is asked.
The user terminal that the embodiment of the invention proposes as shown in Figure 5, comprise: acquiring unit 51, be used for type of service according to the request access service, the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues; Choose unit 52, be used for selecting reference information, choose one according to predetermined strategy and insert and select reference information from the access that described each network that obtains issues to should type of service; Access unit 53 is used to select to issue the network that reference information is selected in the described access of choosing, and inserts this request access service.
In one embodiment, the described unit 52 of choosing specifically comprises: the index subelement, be used for based on described user terminal at the residing various channel conditions of each network, reference information is selected in the described access of obtaining of index respectively, obtain each corresponding service experience mass value, each of described acquisition inserts the mapping relations of selecting to comprise in the reference information various channel conditions and each service experience mass value; Choose subelement, be used for choosing each service experience mass value that described index obtains, reference information is selected in the access of maximum service Quality of experience value correspondence.
In another embodiment, the described unit 52 of choosing is selected the reference information from described access of obtaining, and chooses to comprise the minimum access selection reference information of cost of access, and each of described acquisition inserts to be selected to comprise cost of access information in reference information.
In yet another embodiment, the described unit 52 of choosing specifically comprises: the index subelement, be used for based on described user terminal at the residing various channel conditions of each network, reference information is selected in the described access of obtaining of index respectively, obtain each corresponding service experience mass value, described each that obtain inserts the mapping relations of selecting to comprise in the reference information various channel conditions and each service experience mass value, and cost of access information; The chooser unit is used for each service experience mass value of selecting described index to obtain, and each of each service experience mass value correspondence that is not less than preset value inserts selects reference information; Choose subelement, each that is used for from described selection obtains inserts the selection reference information, chooses to comprise the minimum access selection reference information of cost of access.
The access controller that the embodiment of the invention proposes comprises as shown in Figure 6: determining unit 61, be used for definite every kind of type of service that inserts described network element map network, and reference information is selected in corresponding access; Issue unit 62, reference information is selected in the access that is used to issue described definite corresponding every kind of type of service.
In one embodiment, when described access is selected to comprise the mapping relations of various channel conditions and each service experience mass value in the reference information, described determining unit 61 specifically comprises: collect subelement, be used at every kind of type of service, collect each terminal of this kind of network insertion type of service business of having selected this network element correspondence, residing channel condition and described each terminal are distinguished the corresponding service experience mass value that obtains in this network respectively; Computation subunit, be used for based on corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition of collecting, calculate the terminal that is under this kind channel condition, when selecting this this kind of network insertion type of service professional, the corresponding average service experience mass value that obtains; The unit is set up in mapping, is used at every kind of type of service, and the residing channel condition of terminal is set up mapping relations with the average service experience mass value of corresponding acquisition.
In another embodiment, when described access was selected to comprise cost of access information in the reference information, described determining unit 61 based on default Access Control Policy, was determined the cost of access information that inserts this kind type of service business at every kind of type of service.
In yet another embodiment, described access selects to comprise in the reference information mapping relations of various channel conditions and each service experience mass value, when also comprising cost of access information, described determining unit 61 specifically comprises: collect subelement, be used at every kind of type of service, collect each terminal of this kind of network insertion type of service business of having selected this network element correspondence, respectively the corresponding respectively service experience mass value that obtains of residing channel condition and described each terminal in this network; Computation subunit, be used for based on corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition of collecting, calculate the terminal that is under this kind channel condition, when selecting this this kind of network insertion type of service professional, the corresponding average service experience mass value that obtains; The unit is set up in mapping, is used at every kind of type of service, and the residing channel condition of terminal is set up mapping relations with the average service experience mass value of corresponding acquisition; Determine subelement, be used for,, determine the cost of access information that inserts this kind type of service business based on default Access Control Policy at every kind of type of service.
The access selection scheme that the embodiment of the invention proposes, the standard of professional service experience quality as QoS in the decision network will be had in the network, not only unified the judgement of QoS of the same race in the heterogeneous networks, and, improved accuracy to the QoS judgement by the reference that the actual QoS that provides is selected as access.
The access selection scheme that the embodiment of the invention proposes does not need to carry out information interaction between the heterogeneous networks, thereby has avoided the communication between the heterogeneous networks, has not only saved signaling consumption but also be easy to realize.
The access selection scheme that the embodiment of the invention proposes inserts judgement in terminal, has increased the flexibility of terminal and user's autonomy, has improved user's experience.
The access selection scheme that the embodiment of the invention proposes, the control of network side by cost of access guarantees certain controllability is selected in network insertion, and has improved network by cost of access control and dock flexibility and extensibility of the present invention into selection control.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (21)
1, a kind of access selection method is characterized in that, comprising:
Terminal is according to the type of service of request access service, and the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues;
Select the reference information from the access that described each network that obtains issues, choose one according to predetermined strategy and insert and select reference information should type of service;
Selection issues the network that reference information is selected in the described access of choosing, and inserts this request access service.
2, the method for claim 1 is characterized in that, the access of corresponding every kind of type of service that each network issues is selected to comprise in the reference information:
The mapping relations of various channel conditions and each service experience mass value.
3, method as claimed in claim 2 is characterized in that, each network issues the access of corresponding every kind of type of service and selects reference information, specifically comprises:
Network is collected and has been selected present networks to insert each terminal of this kind type of service business, distinguishes the corresponding service experience mass value that obtains at the residing channel condition of present networks and described each terminal respectively;
Corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition based on collecting calculates the terminal that is in this kind channel condition under, when selecting present networks to insert this kind type of service professional, and the average service experience mass value of corresponding acquisition;
Issuing the terminal that is in every kind of channel condition selects present networks to insert this kind type of service when professional, the corresponding average service experience mass value that obtains and the mapping relations of this kind channel condition.
4, method as claimed in claim 3 is characterized in that, network is collected and selected present networks to insert each terminal of this kind type of service business, and the corresponding respectively service experience mass value that obtains specifically comprises:
Network is based on the parameter that influences this kind type of service QoS of described each terminal to report, calculates described each terminal and selects present networks to insert this kind type of service when professional, the corresponding respectively service experience mass value that obtains.
5, method as claimed in claim 3 is characterized in that, network is collected and selected present networks to insert each terminal of this kind type of service business, and the corresponding respectively service experience mass value that obtains specifically comprises:
When the selection present networks of described each terminal to report of network reception inserts this kind type of service business, the corresponding respectively service experience mass value that obtains, described service experience mass value be described each terminal based on the parameter that influences this kind type of service QoS, calculate.
As claim 4 or 5 described methods, it is characterized in that 6, when selecting the IP-based voice call type of described network insertion professional, the corresponding service experience mass value that obtains calculates by following formula:
E＝D/M；
Wherein E is the service experience mass value, and D is the average packet time delay of the IP-based voice call type business of this access, and M is the maximum allowable delay of the IP-based voice call type business of this access.
7, method as claimed in claim 2 is characterized in that, and is described from the access selection reference information that obtains, and chooses an access selection reference information according to predetermined strategy, specifically comprises:
Terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value;
Choose in each service experience mass value of described index acquisition, reference information is selected in the access of maximum service Quality of experience value correspondence.
8, method as claimed in claim 2 is characterized in that, the access of corresponding every kind of type of service that each network issues is selected to comprise cost of access information in the reference information.
9, method as claimed in claim 8 is characterized in that, each network issues the access of corresponding every kind of type of service and selects reference information, specifically comprises:
Network is based on default Access Control Policy, determines the cost of access information of this type when professional that inserts;
Issue and select present networks to insert the cost of access information of this kind type of service business.
10, method as claimed in claim 8 is characterized in that, each network issues the access of corresponding every kind of type of service and selects reference information, specifically comprises:
Network is collected and has been selected present networks to insert each terminal of this kind type of service business, distinguishes the corresponding service experience mass value that obtains at the residing channel condition of present networks and described each terminal respectively;
Corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition based on collecting calculates the terminal that is in this kind channel condition under, when selecting present networks to insert this kind type of service professional, and the average service experience mass value of corresponding acquisition; And
Based on default Access Control Policy, determine the cost of access information that inserts this type business;
Issue when selecting present networks to insert this kind type of service business, be in every kind of corresponding average service experience mass value that obtains of the terminal under the channel condition, with the mapping relations of this kind channel condition, and the cost of access information that inserts this type business.
11, method as claimed in claim 8 is characterized in that, and is described from the access selection reference information that obtains, and chooses an access selection reference information according to predetermined strategy, specifically comprises:
Terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value;
Choose in each service experience mass value that described index obtains, reference information is selected in the access of maximum service Quality of experience value correspondence.
12, method as claimed in claim 8 is characterized in that, and is described from the access selection reference information that obtains, and chooses an access selection reference information according to predetermined strategy, specifically comprises:
Select the reference information from described access of obtaining, choose and comprise the minimum access of cost of access and select reference information.
13, method as claimed in claim 8 is characterized in that, and is described from the access selection reference information that obtains, and chooses an access selection reference information according to predetermined strategy, specifically comprises:
Terminal is based on oneself residing various channel conditions in each network, and reference information is selected in the described access of obtaining of index respectively, obtains each corresponding service experience mass value;
Select in each service experience mass value that described index obtains, each of each service experience mass value correspondence that is not less than preset value inserts selects reference information;
Each that select from described inserts to be selected reference information, chooses to comprise the minimum access of cost of access and select reference information.
14, a kind of user terminal is characterized in that, comprising:
Acquiring unit is used for the type of service according to the request access service, and the access of each type of service of correspondence that issues from each network is selected the reference information, and reference information is selected in the access to should type of service of obtaining that each network issues;
Choose the unit, be used for selecting reference information, choose one according to predetermined strategy and insert and select reference information from the access that described each network that obtains issues to should type of service;
Access unit is used to select to issue the network that reference information is selected in the described access of choosing, and inserts this request access service.
15, user terminal as claimed in claim 14 is characterized in that, the described unit of choosing specifically comprises:
The index subelement, be used for based on described user terminal at the residing various channel conditions of each network, reference information is selected in the described access of obtaining of index respectively, obtain each corresponding service experience mass value, each of described acquisition inserts the mapping relations of selecting to comprise in the reference information various channel conditions and each service experience mass value;
Choose subelement, be used for choosing each service experience mass value that described index obtains, reference information is selected in the access of maximum service Quality of experience value correspondence.
16, user terminal as claimed in claim 14, it is characterized in that, the described unit of choosing is selected the reference information from described access of obtaining, and chooses to comprise the minimum access selection reference information of cost of access, and each of described acquisition inserts to be selected to comprise cost of access information in reference information.
17, user terminal as claimed in claim 14 is characterized in that, the described unit of choosing specifically comprises:
The index subelement, be used for based on described user terminal at the residing various channel conditions of each network, reference information is selected in the described access of obtaining of index respectively, obtain each corresponding service experience mass value, described each that obtain inserts the mapping relations of selecting to comprise in the reference information various channel conditions and each service experience mass value, and cost of access information;
The chooser unit is used for each service experience mass value of selecting described index to obtain, and each of each service experience mass value correspondence that is not less than preset value inserts selects reference information;
Choose subelement, each that is used for from described selection obtains inserts the selection reference information, chooses to comprise the minimum access selection reference information of cost of access.
18, a kind of network element is characterized in that, comprising:
Determining unit is used for definite every kind of type of service that inserts described network element map network, and reference information is selected in corresponding access;
Issue the unit, reference information is selected in the access that is used to issue described definite corresponding every kind of type of service.
19, network element as claimed in claim 18 is characterized in that, when described access was selected to comprise the mapping relations of various channel conditions and each service experience mass value in the reference information, described determining unit specifically comprised:
Collect subelement, be used for, collect each terminal of this kind of network insertion type of service business of having selected this network element correspondence, respectively the corresponding respectively service experience mass value that obtains of residing channel condition and described each terminal in this network at every kind of type of service;
Computation subunit, be used for based on corresponding each service experience mass value that obtains of each terminal that is in every kind of channel condition of collecting, calculate the terminal that is under this kind channel condition, when selecting this this kind of network insertion type of service professional, the corresponding average service experience mass value that obtains;
The unit is set up in mapping, is used at every kind of type of service, and the residing channel condition of terminal is set up mapping relations with the average service experience mass value of corresponding acquisition.
20, network element as claimed in claim 18, it is characterized in that when described access was selected to comprise cost of access information in the reference information, described determining unit was at every kind of type of service, based on default Access Control Policy, determine the cost of access information that inserts this kind type of service business.
21, network element as claimed in claim 19 is characterized in that, when described access was selected also to comprise cost of access information in the reference information, described determining unit also comprised:
Determine subelement, be used for,, determine the cost of access information that inserts this kind type of service business based on default Access Control Policy at every kind of type of service.
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| CN200810115804A CN101616452A (en) | 2008-06-27 | 2008-06-27 | Access selection method and user terminal, network element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102158871A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Communication method capable of adapting to terminal differentiation, system, control station and terminal |
| CN102695213A (en) * | 2011-03-22 | 2012-09-26 | 中兴通讯股份有限公司 | Joint transmission method and system |
| CN103313333A (en) * | 2012-03-13 | 2013-09-18 | 中国移动通信集团广东有限公司 | Method, communication terminal, server and network for switching among mobile networks |
| CN103347273A (en) * | 2013-07-02 | 2013-10-09 | 北京播思无线技术有限公司 | Device and method for automatically selecting optimal transmission mode according to service requirements |
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| CN102158871A (en) * | 2010-02-12 | 2011-08-17 | 中兴通讯股份有限公司 | Communication method capable of adapting to terminal differentiation, system, control station and terminal |
| CN102158871B (en) * | 2010-02-12 | 2016-04-13 | 中兴通讯股份有限公司 | A kind of communication means, system, control station and terminal adapting to terminal differentiation |
| CN102695213B (en) * | 2011-03-22 | 2017-08-08 | 中兴通讯股份有限公司 | Joint transmission method and system |
| CN102695213A (en) * | 2011-03-22 | 2012-09-26 | 中兴通讯股份有限公司 | Joint transmission method and system |
| CN103313333A (en) * | 2012-03-13 | 2013-09-18 | 中国移动通信集团广东有限公司 | Method, communication terminal, server and network for switching among mobile networks |
| CN103313333B (en) * | 2012-03-13 | 2016-03-30 | 中国移动通信集团广东有限公司 | The method, communication terminal, server and the network that switch is carried out between mobile network |
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| CN105247930A (en) * | 2013-03-26 | 2016-01-13 | 班德韦斯克公司 | Systems and methods for establishing wireless connections based on access conditions |
| CN103347273A (en) * | 2013-07-02 | 2013-10-09 | 北京播思无线技术有限公司 | Device and method for automatically selecting optimal transmission mode according to service requirements |
| WO2017133535A1 (en) * | 2016-02-04 | 2017-08-10 | 中兴通讯股份有限公司 | Network slice selection method, policy generation method, and network node |
| US10194382B2 (en) | 2016-12-27 | 2019-01-29 | Bandwidthx Inc. | Auto-discovery of amenities |
| US10856151B2 (en) | 2016-12-27 | 2020-12-01 | Bandwidthx Inc. | Radio management based on user intervention |
| CN113099485A (en) * | 2019-12-23 | 2021-07-09 | 中国移动通信集团陕西有限公司 | Network access method, device, computing equipment and computer storage medium |
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