CN1852193A - Network sharing method in wireless local network - Google Patents
Network sharing method in wireless local network Download PDFInfo
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- CN1852193A CN1852193A CN 200510100693 CN200510100693A CN1852193A CN 1852193 A CN1852193 A CN 1852193A CN 200510100693 CN200510100693 CN 200510100693 CN 200510100693 A CN200510100693 A CN 200510100693A CN 1852193 A CN1852193 A CN 1852193A
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Abstract
The method includes following steps: setting up a global id of extension service set (ESS) in use for identifying different ESS; ESS is shared by multiple ESS in same basic service set, and a ESS is shared by multiple logics; when selecting access through a wireless local area network, the method builds associated context of relevant logic network at network side and terminal devices side in order to represent relevant relation of network selection. Based on ESS to carry out network sharing, the method is compatible to current sharing mode. The method possesses safer and more stable network architecture.
Description
Technical field
The present invention relates to a kind of wireless local area network technology, the method that network is shared in particular a kind of WLAN (wireless local area network).
Background technology
WLAN in the prior art (WLAN (wireless local area network)) technology because of its in the wireless penetration characteristics, can compare two-forty wired and insert and advantage such as cheap is subjected to the welcome in market deeply, wired occasions such as family, campus, hotel, enterprise's office that are widely used in have been begun to replace at present, and begin to be widely deployed in public's focus place as a kind of WiMAX access technology, the access service of public wireless broadband data is provided.
ISO/IEC 8802-11:1999 " telecommunication and information exchange local net and metropolitan area network particular requirement the 11st part between information technology system: WLAN media interviews control (MAC) and physical layer (PHY) standard " is the international standard of WLAN, the corresponding IEEE 802.11 of its content.
China has also issued WLAN standard GB/T 15629.11-2003, and the main difference of itself and international standard is on the security mechanism of access control difference is arranged.In fact, the wlan product of market extensive use mainly is the additional standard at IEEE 802.11 of IEEE 802.11 standards project groups issue, comprises IEEE 802.11b, IEEE 802.11g, IEEE 802.11a etc.Wherein, 802.11b, 802.11g work in the 2.4Hz frequency range, and 802.11a is operated in the 5GHz frequency range.802.11b the physical layer rate of supporting can reach 11Mb/s, the physical layer rate that 802.11g, 802.11a support can reach 54Mb/s.At present IEEE 802.11 working out support high-throughput more standard 802.11n to support various real time business and multimedia application better, increase power system capacity.
The wlan system of IEEE 802.11 definition of prior art, its basic structure as shown in Figure 1, wherein, STA (Station) refers to comprise the terminal equipment of IEEE 802.11 wireless lan interfaces, many in the market mobile phones are all supported wireless lan interfaces, the also built-in wireless lan interfaces of portable machine.Not with the equipment of wireless lan interfaces, can provide wireless lan interfaces for some by the mode of WLAN wireless network card is installed.
As shown in Figure 1, AP (Access Point) is an access point, the base station that is equivalent to the mobile network, its major function is to make STA to communicate with other the STA or the relevant device of cable network, for example: a plurality of STA are linked into WLAN (wireless local area network) of an AP composition and communicate, the STA that is linked into different AP forms a local area network (LAN) and communicates, and the relevant device of STA and cable LAN communicates etc.Be associated with this services set of STA primordial (BSS) under the AP.
DS among the figure (Distribution System) is a dissemination system, makes between the different BSS and can form a big local area network (LAN) between BSS and the cable LAN, is referred to as extended service set ESS.Wherein portal is meant provides the logical point that MAC service data unit (MSDUs) is transmitted between DS and the cable LAN.
In existing WLAN practical application, relate to the wireless lan network sharing problem, it is that the different shared same local area network (LAN)s of groups of users or service group is carried out corresponding business that so-called network is shared.For example, in an enterprise network, support inside data of enterprise business and visitor to insert internet simultaneously, allow simultaneously to carry out location service, speech business and other data services or the like situation on the net at a wireless local.For another example, at a WLAN (wireless local area network) focus, need be supported in the signatory user of different service providers and share same focus WLAN access.Therefore, how to realize that in WLAN (wireless local area network) network is shared as prior art institute urgent problem.
Have in the prior art and adopt following several solutions:
1, many SSID technology:
In present many real systems, there is many SSID of employing technology to realize the network share technique, as shown in Figure 2, for example corresponding different business, or different groups of users are selected different service set SSID.At this moment, require AP can dispose many SSID, groups of users or business that different SSID is corresponding different, AP carries out groups of users or professional differentiation according to SSID.
But when this scheme of enforcement, a problem of existence is how to allow travelling carriage know whether this AP has disposed the SSID identical with it.Travelling carriage is scanning channel at first, when the SSID of this channel correspondence is identical with it, just can carry out operation associated.When the travelling carriage active scan, Probe Request can be with going up corresponding SSID, and AP then responds Probe response if support this SSID.But exist travelling carriage not support the situation of active scan function, when travelling carriage adopts drive sweep, because standard compliant Beacon frame has only a SSID territory, support that other SSID is invisible to travelling carriage, when the SSID of travelling carriage and the SSID of the Beacon frame of receiving are different, just can't access network.The method of the prior art as shown in Figure 2 be realize to support the different groups of users or the system construction drawing of service groups (BSSID is the MAC Address of AP) on the AP at a BSS.
2, virtual AP scheme
By a plurality of virtual AP of physics AP emulation, each virtual AP has different BSSID, and as shown in Figure 3, this method is equivalent to different BSS and shares a radio-frequency channel, and different users or business adhere to different BSS separately.The proposition of virtual AP method mainly be when solving that AP supports many SSID in the last prior art scheme SSID to the sightless problem of travelling carriage.The virtual AP method makes a plurality of virtual AP of physics AP emulation, and each virtual AP has oneself independently MAC management frames.Can independently broadcast separately Beacon frame as different virtual AP, carry own corresponding SSID separately.STA with different SSID can be associated with respectively on the respective virtual AP of same physics AP.
Because virtual AP is to share same radio propagation channel, therefore, need on same transmission medium, increase access scheduling function to virtual AP, not only increased the complexity that AP realizes, and owing to support the MAC layer of a plurality of virtual AP simultaneously, also increase the expense of interface-free resources aspect the MAC layer-management, reduced the effective bandwidth of air interface.
3, the network that does not rely on SSID is shared method
This method supposition adopts different SSID to go to distinguish different customer groups or business, in an enterprise network, adopt this scheme that certain feasibility is arranged, but when considering that the STA roaming inserts, unless can work out the cover whole world or a national SSID coding standard, be standard of overall importance, stipulate different SSID correspondences groups of users or (with) business, not so, the WLAN (wireless local area network) of various places is provided with SSID by the coded system of this locality, can't realize carrying out user or professional differentiation according to SSID at all.Therefore, the applicant " supporting the method and the device of a plurality of logical network in WLAN (wireless local area network) " applied for the method that a kind of SSID of not relying on network enabled is shared, the principle of this method as shown in Figure 4, when the different user request is related, this method requires to be with corresponding groups of users sign as NAI, and AP distinguishes groups of users according to NAI.This method does not require the coupling of carrying out SSID when association.
But existing at present invention all is based on sharing of BSS or RF, and sharing of AP just also do not supported the disclosing of network technology of sharing of ESS aspect.
Summary of the invention
The method that the object of the present invention is to provide network in a kind of WLAN (wireless local area network) to share has defined the extended service set ESS that is made of a plurality of BSS based on 802.11, proposes a kind of on ESS the shared method of network enabled.
The technical scheme of the inventive method comprises:
The method that network is shared in a kind of WLAN (wireless local area network), it may further comprise the steps:
A, an extended service set identification of overall importance is set is used to identify different extended service set;
B, shared by a plurality of extended service set based on Basic Service Set of expansion service set pair, and an extended service set is shared by a plurality of logic nets;
C, select to set up corresponding logic gateway line contextual at network side and terminal equipment side, to characterize the logical network incidence relation of described network side and described terminal equipment side when a wireless lan network inserts when it.
Described method, wherein, the information that this context comprises comprises:
1) access path information comprises: the MAC Address of terminal equipment, basic service set identification and extended service set identification;
2) optionally related relevant authorized user message with this.
Described method, wherein, described authorized user message comprises: extended service set and Basic Service Set are used for this user is implemented the information of corresponding safety, service quality, charging access control in its respective action territory, and after the certificate server of counterlogic net was finished access authentication to the user, this information was issued in this wireless lan network.
Described method wherein, also comprises: on an extended service set logic net and service set are set up one-to-one relationship, described access path information comprises service set.
Described method, wherein, the variation of the access path of described terminal equipment comprises: change to another Basic Service Set from a Basic Service Set in an extended service set, i.e. the change of basic service set identification; On a Basic Service Set, be altered to another extended service set, i.e. the change of extended service set identification from an extended service set; Be altered to another Basic Service Set under another extended service set from the Basic Service Set of an extended service set, i.e. change extended service set identification and basic service set identification the time; And corresponding change logic gateway line contextual.
The method that network is shared in a kind of WLAN (wireless local area network) provided by the present invention is shared owing to carry out network based on extended service set, compatible existing network sharing mode, and the network architecture is safer stable.
Description of drawings
Fig. 1 is the wlan system schematic diagram of IEEE 802.11 definition of prior art;
Fig. 2 is the system schematic of the many SSID technology in the network technology of sharing of prior art;
Fig. 3 is the system schematic of the virtual AP scheme in the network technology of sharing of prior art;
Fig. 4 shares the systematic schematic diagram of method for the network that does not rely on SSID in the network technology of sharing of prior art;
Fig. 5 a and Fig. 5 b are respectively the basic principle schematic of the inventive method;
Fig. 6 a and Fig. 6 b are respectively the network architecture schematic diagram of the inventive method;
Fig. 7 is the schematic diagram that the network of the inventive method is shared framework;
Fig. 8 is logic net of the inventive method and the network architecture schematic diagram that ESS sets up corresponding relation.
Embodiment
Below in conjunction with accompanying drawing, will carry out comparatively detailed explanation to each preferred embodiment of the present invention.
The method that network is shared in the WLAN (wireless local area network) of the present invention, shown in Fig. 5 a and Fig. 5 b, its basic principle is based on ESS and realizes that upward network is shared, rather than traditional AP or BSS.Wherein, many SSID method can continue to use, and also can not rely on SSID.
Shown in Fig. 6 a and Fig. 6 b, further specify the customer group of the inventive method, the relation between ESS, the BSS: promptly an ESS is made of a plurality of BSS, and a BSS can belong to a plurality of ESS simultaneously; An ESS can support different customer groups, and different customer groups can insert from different ESS.
Below be described in detail each specific embodiment of the inventive method.
The inventive method adopts the ESSID with global sense to identify ESS, and when consideration was shared based on ESS, at first requiring had a kind of overall identification method to ESS, is referred to as extended service set identification ESSID.For example adopt with BSS that BSSID is the same to adopt a MAC Address to identify, the present invention supposes that ESSID is the overall identification of ESS, but does not relate to concrete ESS identification method; Can in the patent of the application same period, see that the applicant has done patent application about this ESS identification method.
Can only comprise a BSS in the WLAN (wireless local area network) physical network of the inventive method, can only comprise an ESS, also can comprise a plurality of ESS.And different customer groups or professional corresponding different respectively logical network are carried on the physical network.Different logical network can be mapped to different physical networks respectively, or is mapped to same physical network, thereby realizes the again framework of network according to function and purposes.The inventive method is primarily aimed at different logical network and is mapped on the same ESS.
For keeping compatible, the inventive method can be used SSID to distinguish same ESS and go up different logical network, promptly identifies as logical network.Like this framework shared of the network of the inventive method as shown in Figure 7, a BSS can be shared by a plurality of ESS, an ESS can be shared by a plurality of logic nets.BSS is designated BSSID, ESS is designated ESSID, the logic network mark is known LNIID, and this logic netlist shows that LNIID can be the network access identifier NAI of the overall situation, when the shared scheme of consideration and many SSID network is compatible, must set up one-to-one relationship between with logic net and SSID on the ESS, the network architecture for a logic network users, is designated userID@NAI among this embodiment of the present invention as shown in Figure 8, show that this user belongs to NAI, its user ID is userID.When it selects from a wlan network access, to set up corresponding logic gateway line contextual at network side and terminal equipment side, to characterize corresponding network selecting relation, be the logical network incidence relation of described network side and described terminal equipment side, just described terminal equipment is logically related with which extended service set.The information that this context comprises comprises:
1) access path information comprises: terminal MAC Address, BSSID, ESSID, SSID; SSID is optional, and reservation can be supported the compatibility with many SSID scheme of prior art.Wherein, ESSID explanation user has selected that ESS, keeps SSID and is in order to remain the compatibility of many SSID scheme, and BSSID illustrates that this user specifically is linked into ESS from that BSS.
2) optionally related relevant authorized user message with this.ESS and BSS should implement access controls such as corresponding safety, QoS, charging based on authorization message in its respective action territory to this user.Have only after the certificate server of counterlogic net is finished access authentication to the user, these information just are issued in this wlan network.
In the wlan network of the inventive method, the variation of terminal access path comprises: change to another BSS from a BSS in an ESS, i.e. BSSID change; On a BSS, be altered to another ESS, i.e. ESSID change from an ESS; Perhaps be altered to another BSS under another ESS, i.e. change ESSID and BSSID the time from the BSS of an ESS.
The inventive method changes for BSSID, logic gateway line contextual need upgrade the variation with reflection BSS, need rebuild mechanism such as corresponding safety, QoS at corresponding BSS simultaneously to satisfy the demand of this customer service, and need not user access authentication or pre-authentication again, this moment, described extended service set identification did not change.And in the existing scheme of sharing based on AP or BSS,, all needing user access authentication or pre-authentication first as long as the BSS change takes place, logic gateway line contextual needs to rebuild naturally.When the inventive method has only ESS change (no matter whether BSS changes), just need user access authentication or pre-authentication first, to set up new logic gateway line contextual.
Therefore, a plurality of ESS of the inventive method can share same BSS, and a plurality of logical network can be shared same ESS.Can share scheme by compatible traditional network, network is shared the ESS aspect that is based upon, rather than BSS aspect, therefore the variation of an interior BSS of ESS can not require re-authentication or pre-authentication to set up new logic gateway line contextual, because of ESS does not change with the related of logic net, so the network architecture is safer stable.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, and can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (5)
1, the method that network is shared in a kind of WLAN (wireless local area network), it may further comprise the steps:
A, an extended service set identification of overall importance is set is used to identify different extended service set;
B, shared by a plurality of extended service set based on Basic Service Set of expansion service set pair, and an extended service set is shared by a plurality of logic nets;
C, select to set up corresponding logic gateway line contextual at network side and terminal equipment side, to characterize the logical network incidence relation of described network side and described terminal equipment side when a wireless lan network inserts when it.
2, method according to claim 1 is characterized in that, the information that this context comprises comprises:
1) access path information comprises: the media access control address of terminal equipment, basic service set identification and extended service set identification;
2) optionally related relevant authorized user message with this.
3, method according to claim 2, it is characterized in that, described authorized user message comprises: extended service set and Basic Service Set are used for this user is implemented the information of corresponding safety, service quality, charging access control in its respective action territory, and after the certificate server of counterlogic net was finished access authentication to the user, this information was issued in this wireless lan network.
4, method according to claim 1 is characterized in that, described step C also comprises: on an extended service set logic net and service set are set up one-to-one relationship, and described access path information comprises service set.
5, method according to claim 1 is characterized in that, the variation of the access path of described terminal equipment comprises: change to another Basic Service Set from a Basic Service Set in an extended service set, i.e. the change of basic service set identification; On a Basic Service Set, be altered to another extended service set, i.e. the change of extended service set identification from an extended service set; Be altered to another Basic Service Set under another extended service set from the Basic Service Set of an extended service set, i.e. change extended service set identification and basic service set identification the time; And corresponding change logic gateway line contextual.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101006932A CN100403717C (en) | 2005-10-21 | 2005-10-21 | Network sharing method in wireless local network |
| PCT/CN2006/002524 WO2007045147A1 (en) | 2005-10-21 | 2006-09-25 | An accessing network method, system and terminal of the wireless local area network terminal |
| US11/584,407 US20070153732A1 (en) | 2005-10-21 | 2006-10-20 | Method for a wireless local area network terminal to access a network, a system and a terminal |
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| CNB2005101006932A CN100403717C (en) | 2005-10-21 | 2005-10-21 | Network sharing method in wireless local network |
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| CN100403717C CN100403717C (en) | 2008-07-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102246199A (en) * | 2008-12-11 | 2011-11-16 | 微软公司 | Providing ubiquitous wireless connectivity and a marketplace for exchanging wireless connectivity using a connectivity exchange |
| CN102665280A (en) * | 2012-05-08 | 2012-09-12 | 杭州华三通信技术有限公司 | Processing method of client hiding situation and wireless AP (access point) |
| US8683073B2 (en) | 2008-12-11 | 2014-03-25 | Microsoft Corporation | Participating with and accessing a connectivity exchange |
| CN104115545A (en) * | 2012-02-27 | 2014-10-22 | 高通股份有限公司 | Serving multiple subscribers through a software-enabled access point |
| CN105472628A (en) * | 2015-11-19 | 2016-04-06 | 深圳市华讯方舟科技有限公司 | Method and device for expanding WLAN ID number |
| WO2016061981A1 (en) * | 2014-10-21 | 2016-04-28 | 中兴通讯股份有限公司 | Wlan sharing method and system, and wlan sharing registration server |
| WO2017219901A1 (en) * | 2016-06-20 | 2017-12-28 | Huawei Technologies Co., Ltd. | A system and method for changing an identifier of a basic service set |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254143C (en) * | 2002-09-10 | 2006-04-26 | 华为技术有限公司 | Method for safety switching of mobile terminal between wireless local net access nodes |
| US7239844B2 (en) * | 2002-11-11 | 2007-07-03 | Broadcom Corporation | Wireless local area network supporting multiple slot times |
| US8315271B2 (en) * | 2004-03-26 | 2012-11-20 | Qualcomm Incorporated | Method and apparatus for an ad-hoc wireless communications system |
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2005
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102246199A (en) * | 2008-12-11 | 2011-11-16 | 微软公司 | Providing ubiquitous wireless connectivity and a marketplace for exchanging wireless connectivity using a connectivity exchange |
| US8683073B2 (en) | 2008-12-11 | 2014-03-25 | Microsoft Corporation | Participating with and accessing a connectivity exchange |
| US9049595B2 (en) | 2008-12-11 | 2015-06-02 | Microsoft Technology Licensing, Llc | Providing ubiquitous wireless connectivity and a marketplace for exchanging wireless connectivity using a connectivity exchange |
| CN102246199B (en) * | 2008-12-11 | 2016-06-08 | 微软技术许可有限责任公司 | Use to connect to exchange and provide ubiquitous wireless connections and for exchanging the market of wireless connections |
| CN104115545A (en) * | 2012-02-27 | 2014-10-22 | 高通股份有限公司 | Serving multiple subscribers through a software-enabled access point |
| CN102665280A (en) * | 2012-05-08 | 2012-09-12 | 杭州华三通信技术有限公司 | Processing method of client hiding situation and wireless AP (access point) |
| WO2016061981A1 (en) * | 2014-10-21 | 2016-04-28 | 中兴通讯股份有限公司 | Wlan sharing method and system, and wlan sharing registration server |
| CN105592453A (en) * | 2014-10-21 | 2016-05-18 | 中兴通讯股份有限公司 | Method and system for realizing WLAN sharing and WLAN sharing register server |
| CN105472628A (en) * | 2015-11-19 | 2016-04-06 | 深圳市华讯方舟科技有限公司 | Method and device for expanding WLAN ID number |
| CN105472628B (en) * | 2015-11-19 | 2017-11-10 | 华讯方舟科技有限公司 | Extend the method and device of WLAN ID numbers |
| WO2017219901A1 (en) * | 2016-06-20 | 2017-12-28 | Huawei Technologies Co., Ltd. | A system and method for changing an identifier of a basic service set |
| US10136349B2 (en) | 2016-06-20 | 2018-11-20 | Futurewei Technologies, Inc. | System and method for changing an identifier of a basic service set |
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