CN1859248A - Service cut-in method for radio local network and radio local network system - Google Patents
Service cut-in method for radio local network and radio local network system Download PDFInfo
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Abstract
The present invention provides wireless local area networks service accessing method and wireless local area networks system. Said method includes A, configuring user's service quality contract sign information, said service quality contract sign information including user signatory service type and said service type corresponded contract sign precedence information; B, receiving user's service access request, said service access request containing user request accessing service type and request precedence information; C, according to said user's service access request and service quality contract information determining user request accessing service type access priority, and according to said accessing priority executing service accessing operation. The present invention correlates user, user signatory service type and signatory priority, capable of controlling service accessing and ensuring user service accessing QoS.
Description
Technical field
The present invention is applicable to wireless communication field, relates in particular to a kind of business access method and wireless local area network (WLAN) system of WLAN (wireless local area network).
Background technology
WLAN (Wireless Local Area Network, WLAN (wireless local area network)) technology can compare the two-forty cut-in method wired because of its wireless penetration, performance and advantage such as cheap is received by the market.At present, begun to replace wired public places such as family, school, hotel and enterprise that are widely used in, and beginning provides the access service of public wireless wideband data as a kind of WiMAX access technology.
The wlan product of market extensive use mainly is the additional standard at IEEE 802.11 of IEEE802.11 standards project group issue, comprise IEEE802.11b (IEEE Std 802.11b-1999, Part 11:Wireless LAN Medium Access Control And Physical Layer Specifications:Higher-speed Physical Layer Extension in the 2.4GHz Band), IEEE802.11g (IEEEStd.802.11g, 2003 Edition[ISO/IEC 8802-11:2003], Standards for Local andMetropolitan Area Networks-Part11:Wireless LAN Medium Access Control andPhysical Layer Specifications:Further Higher Data Rate Extension in the 2.4GHzBand), IEEE Std.802.11a (IEEE Std.802.11a, 1999 Edition[ISO/IEC 8802-11:1999], Standards for Local and Metropolitan Area Networks-Part11:Wireless LANMedium Access Control and Physical Layer Specifications:High-speed PhysicalLayerin the 5GHz Band) etc.
The above 802.11 common WLAN standard is not have QoS (Quality of Service, service quality) to ensure.For remedying this deficiency, IEEE 802 working groups have formulated enhanced standard-802.11e of 802.11, detailed content is referring to IEEE 802.11e/D4.0, Draft Supplement to Part 11:Wireless Medium Access Control (MAC) and physical layer (PHY) specifications:Medium Access Control (MAC) Enhancements for Quality ofService (QoS).802.11e to (the Distributed CoordinationFunction of the DCF among the original IEEE802.11, the distributed collaboration function) strengthens, be called EDCF (Enhanced DistributedCoordination Function strengthens the distributed collaboration function).802.11e MAC (medium access control) layer also have a kind of access way HCF (Hybrid Coordination Function, mixed synergistic function), it is enhancing to original IEEE 802.11 MAC layer access way PCF (Point Coordination Function, point is collaborative).802.11e by introducing TC (Traffic Category, class of service), make each TC all with a service priority UP (User Priority, service priority) correspondence, realized support to the traffic stream service quality.During realization, EDCF provides 4 AC (Access Category inserts classification) of differentiable, distributed access channel for website, and the service priority of corresponding different classs of service ensures the QoS of Business Stream.Following table shows the service priority UP of class of business of IEEE802.11e regulation to the mapping of AC:
| Priority | Service priority UP (identical) with 802.1d | Insert classification (AC) | Purpose |
| Lowermost level | | | | ↓ Zui is senior | 1 | 1 | Background |
| 2 | 1 | Background | |
| 0 | 0 | Do one's best | |
| 3 | 0 | Do one's best | |
| 4 | 2 | Video | |
| 5 | 2 | Video | |
| 6 | 3 | Voice | |
| 7 | 3 | Voice |
Need to prove that an AC is one group of channel access parameter, as CWmin[AC], CWmax[AC], AIFS[AC] and TXOP boundary (limit).When the priority UP of class of business TC is mapped to AC according to IEEE 802.11e regulation,, then when access channel, observe the defined channel parameter of this AC if belong to certain AC.Class of business TC then inserts not directly relation with channel, its service priority is defined among the 802.1d, detailed content is referring to ANSI/IEEE Std 802.1D[ISO/IEC15802-3], Media Access Control (MAC) Bridges.Specifies an architecture andprotocol for the interconnection of IEEE 802 LANs below the MAC serviceboundary.These service priority are specified by higher layer protocol entities, are mapped to channel parameter corresponding then in the MAC layer.
802.1le EDCF mechanism gives various traffic classes different service priority by artificial, sets up the mapping relations of TC to AC, determines that one group of channel access parameter ensures user's QoS, has solved the QoS problem of access service stream.
As shown in Figure 1, existing WLAN access architecture comprises user terminal (STA) 100, connecting system 200 and connecting system server (Access Server, be called for short AS), wherein connecting system 200 is by AP (Access Point, access point) 201 and AC (Access control, cut-in convergent point/authentication points) 202 form.
Connecting system server 300 is mainly connecting system 200 services, provides user signing contract information to connecting system 200.User signing contract information is obtained in the local data library storage or by network by connecting system server 300.
Functions such as access permission to WLAN user, allocation of radio resources are finished in connecting system 200 and 300 collaborative works of connecting system server.Typical implementation is to adopt the 802.1x agreement that the user is authenticated between user terminal 100 and the connecting system 200, adopt RADIUS (Remote Authentication Dial In User Service between connecting system 200 and the connecting system server 300, remote verification dialing user service) message obtains user signing contract information, to realize the access control to the user.
In sum, WLAN (wireless local area network) of the prior art only provides the method for user's access and the rule of class of service being distributed different priority, shortage is difficult to the QoS that ensures that well customer service inserts at the specific implementation that user's concrete service request provides respective priority to insert.
Summary of the invention
The object of the present invention is to provide the business access method in a kind of WLAN (wireless local area network), be intended to solve in the prior art and lack the specific implementation that the concrete service request at the user provides respective priority to insert, the problem of the QoS that is difficult to ensure that well customer service inserts.
Another object of the present invention is to provide a kind of wireless local area network (WLAN) system.
For achieving the above object, the invention provides a kind of business access method of WLAN (wireless local area network), described method comprises the steps:
A. the service quality CAMEL-Subscription-Information of configure user, described service quality CAMEL-Subscription-Information comprises the type of service that the user contracts, and the signatory precedence information corresponding with described type of service;
B. receive user's service access request, include the user in the described service access request and ask the type of service and the request priority information that insert;
C. determine that according to described user's service access request and service quality CAMEL-Subscription-Information the user asks the access priority of the type of service that inserts, and carry out the service access operation by described access priority.
Described step C further comprises the steps:
C1. judging that whether described request priority ask the signatory priority of the type of service that inserts greater than described user, is execution in step C3 then, otherwise execution in step C2;
C2. described request priority is carried out the service access operation as access priority;
C3. refusing user's inserts, and perhaps notifies the user to reduce Request Priority and initiates the service access request again, perhaps asks the signatory priority of the type of service that inserts to carry out the service access operation as access priority with described user.
Before described step C, described method further comprises the steps:
Service access request and service quality CAMEL-Subscription-Information according to the user carry out authentication to the user, if described user belongs to the contracted user, and the type of service that described request inserts belongs to the signing service type in the service quality CAMEL-Subscription-Information, and then authentication is passed through, otherwise authentication is not passed through.
Described service quality CAMEL-Subscription-Information is carried by the extended attribute that the remote verification dialing user serves the RADIUS message.
For achieving the above object, the present invention further provides a kind of wireless local area network (WLAN) system, described system comprises:
The connecting system server is used for the service quality CAMEL-Subscription-Information of configure user, and described service quality CAMEL-Subscription-Information comprises the type of service that the user contracts, and the signatory precedence information corresponding with described type of service;
User terminal is used for sending the service access request to described system, includes the user in the described service access request and asks the type of service and the request priority information that insert;
Connecting system, be used to receive user's service access request, obtain described quality of services for users CAMEL-Subscription-Information, determine that according to described user's service access request and service quality CAMEL-Subscription-Information the user asks the access priority of the type of service that inserts, and carry out the service access operation by described access priority.
Described connecting system is further used for judging that whether described request priority ask the signatory priority of the type of service that inserts greater than described user, is that then refusing user's inserts; Otherwise described request priority is carried out the service access operation as access priority.
Described connecting system is further used for according to user's service access request and service quality CAMEL-Subscription-Information the user being carried out authentication, if described user belongs to the contracted user, and the type of service that described request inserts belongs to the signing service type in the service quality CAMEL-Subscription-Information, then by authentication, otherwise not by authentication.
Described connecting system server is served the RADIUS message by the remote verification dialing user described quality of services for users CAMEL-Subscription-Information is passed to described connecting system.
The present invention carries out association with type of service and signatory priority that user, user contract, when the user inserts, the access priority of judging user's requested service according to user's Request Priority and signatory priority ratio, can control service access flexibly, ensure the QoS that customer service inserts.
Description of drawings
Fig. 1 is the structure chart of wireless local area network (WLAN) system;
Fig. 2 is the realization flow figure that customer service provided by the invention inserts.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The present invention is associated with contract professional of user and with professional corresponding service priority, when the user initiates the service access request, should the corresponding signatory priority of business compare in system asks the business that inserts and the access service of asking according to the user Request Priority and user's the CAMEL-Subscription-Information, thereby determine that corresponding access priority provides access service for the user, with the QoS that ensures that customer service inserts.
In the present invention, when wlan network is carried out a kind of new business, this professional QoS demand is set at first.Professional QoS demand is by service priority (UP) tolerance, and each business all has a corresponding service priority, and is as shown in the table:
| Professional | Insert classification | QoS demand (service priority UP) |
| Internet inserts | Do one's best | UP=0 (perhaps 3) |
| VoIP | Voice | UP=6 (perhaps 7) |
| ... | ... | ... |
In the present invention, the user determines its signatory professional and corresponding signatory priority that inserts by signing the QoS CAMEL-Subscription-Information, comprises the set of user's signing service in the QoS CAMEL-Subscription-Information, and with every kind of signatory priority that business is corresponding.User's identify label, type of service and professional corresponding signatory priority can be associated by the QoS CAMEL-Subscription-Information, business is related by the channel access parameter of this business corresponding service priority and physics, the QoS of guarantee different user and service access.In user's QoS CAMEL-Subscription-Information, if certain business does not have the signing service precedence information or this professional QoS demand is not set, then the service priority according to system default comes this kind business is inserted processing.
In the present invention, user's signatory Qos information is carried by the extended attribute of RADIUS message, and its data structure is as follows:
/*user-profile*/
{
User-identiy ,/* User Identity */
/ * user contract QoS entity */
QoS-Entity{
Service_identify ,/* service identification */
Service-UP ,/* service contracting priority */
}
...
}
Referring to Fig. 1, in the present invention, user terminal 100 is supported service quality guarantee agreement (as IEEE 802.11e agreement) simultaneously on the basis of supporting IEEE802.11 and additional standard (comprising: IEEE 802.11b, IEEE 802.11a, IEEE 802.11g agreement) thereof.
Connecting system 200 is supported service quality guarantee agreement (as IEEE 802.11e agreement) on the basis of the connecting system function of prior art, support and connecting system server 300 carry out QoS to be consulted, and can carry out access control to user terminal 100 according to the QoS after consulting, guarantee the QoS that the user inserts.Connecting system 200 can be to 300 inquiries of connecting system server, reception user's QoS CAMEL-Subscription-Information, and can distribute default QoS for the user, promptly in user's QoS CAMEL-Subscription-Information, if there is not the signatory priority of certain business, perhaps do not set this professional QoS demand, then the priority to this kind business according to system default inserts processing.
Connecting system server 300 is supported the function of connecting system server of the prior art, and transmits the RADIUS message of the QoS CAMEL-Subscription-Information that carries the user to connecting system 200.In one embodiment of the invention, connecting system server 300 stores user's QoS CAMEL-Subscription-Information, and in another embodiment of the present invention, connecting system server 300 obtains user's QoS CAMEL-Subscription-Information from network.
Fig. 2 shows the realization flow of the business access method of WLAN (wireless local area network) provided by the invention, and details are as follows:
In step S201, the user sends the service access request message by user terminal 100 to connecting system 200, includes User Identity information, request access service and professional request priority information in the message;
In step S202, connecting system server 300 issues user's QoS CAMEL-Subscription-Information to connecting system 200 by the RADIUS message;
In step S203, the business request information that connecting system 200 sends according to user terminal 100, and user's QoS CAMEL-Subscription-Information carries out authentication to this user, if judge that the user belongs to the contracted user, and the request access service belongs to the signing service in the user QoS CAMEL-Subscription-Information, then authentication success, execution in step S204, otherwise the authentication failure, execution in step S206;
In step S204, connecting system 200 is judged more whether success of service priority according to user's QoS CAMEL-Subscription-Information, is execution in step S205 then, otherwise execution in step S206;
Connecting system 200 compares signatory priority that should business in Request Priority in the service access request message and the user QoS CAMEL-Subscription-Information, if Request Priority is less than or equal to signatory priority, and execution in step S205 then, otherwise execution in step S206.
In step S205, connecting system 200 is carried out the service access operation with Request Priority as access priority;
In step S206, access failure, connecting system 200 refusing user's terminals 100 insert.Connecting system 200 also can send the notice of Request Priority greater than signatory priority to user terminal 100, informs that the user reduces Request Priority and initiates the service access request again or the signatory priority in the user QoS CAMEL-Subscription-Information is carried out the service access operation as access priority.
The MAC layer of IEEE 802.11e has two kinds of access waies, EDCF (Enhanced DistributedCoordination Function, strengthen the distributed collaboration function) and HCF (Hybrid CoordinationFunction, mixed synergistic function), the present invention is not only applicable to the EDCF mode, and is applicable to the HCF mode.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1, a kind of business access method of WLAN (wireless local area network) is characterized in that, described method comprises the steps:
A. the service quality CAMEL-Subscription-Information of configure user, described service quality CAMEL-Subscription-Information comprises the type of service that the user contracts, and the signatory precedence information corresponding with described type of service;
B. receive user's service access request, include the user in the described service access request and ask the type of service and the request priority information that insert;
C. determine that according to described user's service access request and service quality CAMEL-Subscription-Information the user asks the access priority of the type of service that inserts, and carry out the service access operation by described access priority.
2, business access method as claimed in claim 1 is characterized in that, described step C further comprises the steps:
C1. judging that whether described request priority ask the signatory priority of the type of service that inserts greater than described user, is execution in step C3 then, otherwise execution in step C2;
C2. described request priority is carried out the service access operation as access priority;
C3. refusing user's inserts, and perhaps notifies the user to reduce Request Priority and initiates the service access request again, perhaps asks the signatory priority of the type of service that inserts to carry out the service access operation as access priority with described user.
3, business access method as claimed in claim 1 is characterized in that, before described step C, described method further comprises the steps:
Service access request and service quality CAMEL-Subscription-Information according to the user carry out authentication to the user, if described user belongs to the contracted user, and the type of service that described request inserts belongs to the signing service type in the service quality CAMEL-Subscription-Information, and then authentication is passed through, otherwise authentication is not passed through.
4, business access method as claimed in claim 1 is characterized in that, described service quality CAMEL-Subscription-Information is carried by the extended attribute that the remote verification dialing user serves the RADIUS message.
5, a kind of wireless local area network (WLAN) system is characterized in that, described system comprises:
The connecting system server is used for the service quality CAMEL-Subscription-Information of configure user, and described service quality CAMEL-Subscription-Information comprises the type of service that the user contracts, and the signatory precedence information corresponding with described type of service;
User terminal is used for sending the service access request to described system, includes the user in the described service access request and asks the type of service and the request priority information that insert;
Connecting system, be used to receive user's service access request, obtain described quality of services for users CAMEL-Subscription-Information, determine that according to described user's service access request and service quality CAMEL-Subscription-Information the user asks the access priority of the type of service that inserts, and carry out the service access operation by described access priority.
6, wireless local area network (WLAN) system as claimed in claim 5 is characterized in that, described connecting system is further used for judging that whether described request priority ask the signatory priority of the type of service that inserts greater than described user, is that then refusing user's inserts; Otherwise described request priority is carried out the service access operation as access priority.
7, wireless local area network (WLAN) system as claimed in claim 5, it is characterized in that, described connecting system is further used for according to user's service access request and service quality CAMEL-Subscription-Information the user being carried out authentication, if described user belongs to the contracted user, and the type of service that described request inserts belongs to the signing service type in the service quality CAMEL-Subscription-Information, then by authentication, otherwise not by authentication.
8, wireless local area network (WLAN) system as claimed in claim 5 is characterized in that, described connecting system server is served the RADIUS message by the remote verification dialing user described quality of services for users CAMEL-Subscription-Information is passed to described connecting system.
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Effective date of registration: 20210422 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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