CN1643816A - Communication system having a community wireless local area network for voice and high speed data communication - Google Patents
Communication system having a community wireless local area network for voice and high speed data communication Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0853—Network architectures or network communication protocols for network security for authentication of entities using an additional device, e.g. smartcard, SIM or a different communication terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/162—Implementing security features at a particular protocol layer at the data link layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/06—Network architectures or network communication protocols for network security for supporting key management in a packet data network
- H04L63/062—Network architectures or network communication protocols for network security for supporting key management in a packet data network for key distribution, e.g. centrally by trusted party
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
A system (100) and method for providing high capacity voice and high speed data communication between user equipment terminals (UEs 104) and a public network (108). Generally, the system (100) includes a community Wireless Local Area Network (WLAN 102) having a centralized base transceiver station (CBTS 114) coupled to a public network (108), and several remote transceiver stations (RTSs 118) each coupled to several UEs (104), and, via a radio link, to the CBTS. In one embodiment, the CBTS (114) and RTSs (118) include a Global Systems for Mobile communication/General Packet Radio Service (GSM/GPRS) transceiver (148, 154) to provide data communication, and a WLAN transceiver (150, 156) to provide voice communication. Preferably, the WLAN transceiver (150, 156) is compatible with an open standard, such as IEEE 802.11. More preferably, the CBTS (114) and RTSs (118) include frequency converters (152, 158), to up-convert a frequency of signals generated in at least one of the transceivers to couple the CBTS to the RTS via a signal at a frequency above standard GSM frequencies.
Description
Related application is quoted
The application requires the priority at following application: the U.S. Provisional Application No.60/351764 that is entitled as " ad Hoc wireless network that has the expansion of public network interface and WLAN (wireless local area network) " (PrivateWireless Network With a Public Network Interface and a Wireless LocalArea Network Extension) that on January 24th, 2002 submitted to; The U.S. Provisional Application No.60/353815 that is entitled as " communication system " (Communication System Having a Community WirelessLocal Area Network for Voice and High Speed Data Communication) that on January 31st, 2002 submitted to the community wireless local area network that is used for voice and high-speed data communication; The U.S. Provisional Application No.60/357723 that is entitled as " ad Hoc wireless network that has the expansion of public network interface and WLAN (wireless local area network) " (Private WirelessNetwork With a Public Network Interface and a Wireless Local AreaNetwork Extension) that on February 15th, 2002 submitted to; The novel application of U.S. utility (utilityapplication) No.10/126250 that is entitled as " the special-purpose Cellular Networks that has the expansion of public network interface and WLAN (wireless local area network) " (Private Cellular Network With a Public Network Interface and aWireless Local Area Network Extension) that on February 15th, 2002 submitted to; The novel apply for agency people of the U.S. utility case A-71121 that is entitled as " communication system with the community wireless local area network that is used for voice and high-speed data communication " (CommunicationSystem Having a Community Wireless Local Area Network for Voice andHigh Speed Data Communication) that on January 24th, 2003 submitted to, all these applications are all incorporated herein by reference.
The field
Relate generally to communication system of the present invention, more particularly, relate to communication system that comprises community wireless local area network (WLAN) and the method for using same system, the described WLAN of community is in order to provide voice communications versus data communications between a plurality of subscriber equipment terminals and public network.
Background
In recent years, to communication network and comprise that the use of devices such as phone, beep-pager, facsimile machine, computer and network access equipment is exponential growth.In many zones and community, the demand of this growth to the voice communications versus data communications business has surpassed the growth of supporting these professional required public infrastructures.
A possible solution of the problems referred to above is to use conventional public or ad Hoc wireless network.Yet owing to many reasons, this mode can not be entirely satisfactory.The essential defect that uses conventional wireless network be can with the radio or the relevant cost of subscriber equipment terminal (UE) of conventional GSM (global system for mobile communications), GPRS (GPRS) or 3G (third generation honeycomb) wireless communication.Though the expense of these UE can't help to be appreciated that for community provides any wireless network services provider of voice and/or data communication to bear the high more then potential number of users of cost will be few more usually.Therefore, the more impossible expense of being ready to bear in essential base station of community's installation and switching center of service provider.
The zone that prior wireless network is served or another problem in the community are extended networks so that service is provided or the difficulty and the expense of other services are provided for other users.For example, any wireless network services provider to be used to provide the typical method of increase capacity be that extra base station and switching center are installed.As mentioned above, because expense, in some rural area or poverty-stricken area and community, this is unacceptable.In addition, in many developed regions and urban area, this also is unacceptable, and in those areas, overcrowding licensed band reduces because of the interference to overlapping base station causes the capacity of addition of base station and switching center.
Therefore need a kind of cheap communication system and the method for operation same system, it can be the service or provide voice and high-speed data communication in the community users of service as yet so far of general communication system.Also need the method for a kind of communication system and operation same system, it can be expanded on fast, economical ground, thinks that ever-increasing user provides service.In addition, also need the method for a kind of communication system and operation same system, it can provide big capacity for voice communications versus data communications.
System and method of the present invention provides these and other advantages that are better than prior art.
General introduction
The purpose of this invention is to provide a kind of communication system, it can provide high power capacity voice and high-speed data communication through community wireless local area network (WLAN) between a plurality of subscriber equipment terminals (UE) and public network.
On the one hand, the present invention is in order that provide a kind of communication system, and this system is used for providing voice communications versus data communications between public network and a plurality of UE.Usually, described communication system comprises the WLAN of community and a plurality of long-range transceiver station (RTS), the described WLAN of community has the central base station transceiver station (CBTS) that is connected to public network, and each long-range transceiver station is connected to a plurality of UE, and is connected to CBTS through radio link.Described public network preferably includes public switch telephone network and internet, and described CBTS is connected to described public network by trunk line.Perhaps, described CBTS can be connected to described public network through satellite link or other public wireless networks.
In one embodiment, described CBTS and each RTS comprise and are used at global mobile communication system/general grouping wireless service (GSM/GPRS) transceiver that data communication is provided between described public network and the described UE and the WLAN transceiver of voice communication is provided between described public network and described UE.Described WLAN transceiver and open standard agreement, for example HiperLAN (HiperLAN/1), HiperLAN (HiperLAN/2) and Electrical and Electronic engineer agreement 802.11 (IEEE 802.11) compatibility.
In another embodiment, described CBTS and each RTS comprise frequency converter, with the signal frequency up-conversion that will at least one transceiver among described CBTS and the described RTS, generate, so that the radio signal that is higher than about 900Mhz standard GSM frequency range by frequency is connected to described RTS with described CBTS.Described CBTS and RTS preferably are suitable for using on certain frequency range in (ETSI) standard the GSM technology to communicate.More preferably, described CBTS and RTS are suitable for using the GSM technology to communicate on the frequency range of about at least 3.5Ghz.
On the other hand, the present invention is in order that provide a kind of transceiver station that is used in the communication system.Usually, described transceiver station comprises antenna, global system for mobile communications (GSM) transceiver and frequency converter, and described frequency converter is connected between the described GSM transceiver, to allow using the GSM technology to communicate with the frequency that is higher than conventional GSM frequency range.Described transceiver station preferably is suitable for using on certain frequency range in (ETSI) standard the GSM technology to communicate.More preferably, described transceiver station is suitable for using the GSM technology to communicate on the frequency range of about at least 3.5Ghz.
In one embodiment, the GSM transceiver is GSM/ GPRS (GSM/GPRS) transceiver, and transceiver station is suitable for transmitting data and voice.
Aspect another, the present invention provides the method for voice communications versus data communications in order that the communication system that provides a kind of use to comprise the WLAN of community between a plurality of UE and public network.Usually, said method comprising the steps of: (i) receipt of call information in the described WLAN of community; (ii) user ID and the security information with described UE offers the described WLAN of community; And (iii) described UE is connected to described public network by the described WLAN of community.
In one embodiment, public network comprises public switch telephone network and internet, and the step that UE is connected to public network is comprised by trunk line CBTS is connected to public network.Perhaps, CBTS can be connected to public network through satellite link or other public wireless networks.
At another embodiment, CBTS and each RTS comprise global system communication system/GPRS (GSM/GPRS) transceiver, and by using GSM standard that CBTS is connected to RTS, between public network and UE, providing data communication, thereby finish the step that described UE is connected to described public network.In a kind of form of present embodiment, CBTS and each RTS also comprise the WLAN transceiver, and the step that UE is connected to public network comprised use wlan standard that CBTS is connected to RTS, to provide voice communication between public network and UE.Wlan standard is the open-standards agreement preferably, as HiperLAN (HiperLAN/1) standard, HiperLAN/2 standard or Electrical and Electronic engineer agreement 802.11 (IEEE 802.11) standard.
In another embodiment, CBTS and each RTS comprise frequency converter, and the step that UE is connected to public network may further comprise the steps: the signal frequency up-conversion that will at least one transceiver in GSM/GPRS and the WLAN transceiver, generate, so that the radio signal that is higher than 900Mhz standard GSM frequency range by frequency is connected to RTS with CBTS.The described step of the frequency upconversion of described signal is preferably included the frequency upconversion of the described signal frequency range in (ETSI) standard.More preferably, the described step of the frequency upconversion of described signal is comprised with the frequency upconversion of described signal at least about frequency range of 3.5Ghz.
The advantage of present device and method comprises: the cost of making and installing is low; High speed data transfer reaches as high as 54 to 100Mbps; Jumbo voice communications versus data communications; And be easy to expansion because of for example allowing each CBTS to have maximum 256 RTS based on 802.11 WLAN.
Another purpose of the present invention provides a kind of communication system, and described system plays the bridge joint effect between existing public network and WLAN, provides authentication and roaming function with the latter's high speed and high bandwidth for the former.
Another object of the present invention provides a kind of communication system, wherein, the UE terminal of the WLAN that works on not control (unregulated) frequency range can insert such as public network such as public switch telephone network, public GSM Cellular Networks, public 3G network or internet and/or such as special-purpose Cellular Networks, campus or the 3G of enterprise net or PBX dedicated networks such as (PBX), and function that described PBX has and performance classes are similar to those functions and the performance that can obtain from the higher GSM Cellular Networks of cost and 3G Cellular Networks.
Another purpose of the present invention provides a kind of communication system, wherein uses the WLAN broadband technology, particularly uses the technology based on 802.11 that GSM/GPRS/3G is provided broadband services.
On the one hand, control subscriber equipment terminal (UE) or transceiver do not insert the communication system of public network by low-power in order that a kind of permission user is provided in the present invention.Usually, communication system comprises the public cellular net and is connected to the wireless lan (wlan) of described public cellular net, and described WLAN is configured to promote communicating by letter between described UE and the described public cellular net.The public cellular net can be global system for mobile communications (GSM) network that is connected to public switch telephone network (PSTN).Perhaps, described public cellular net also can comprise 3G (Third Generation) Moblie (3G) network that is connected to GSM network and internet.Described communication system also can select to comprise the special-purpose Cellular Networks that is connected to described WLAN, with promote described UE with travelling carriage that described special-purpose Cellular Networks is associated between communication.
In one embodiment, described communication system also comprises remote authentication dial-in customer service (RADIUS) server, the UE that inserts described communication system by WLAN is authenticated and authorizes the described communication system of access.Comprise the place of the WLAN of a plurality of links in described communication system, the visitor register place (VLR) that comprises the home location register place (HLR) of attaching position register for example and/or home subscription server (homesubscription server) and be connected to radius server provides roaming function for the UE among a plurality of WLAN.
In another embodiment, UE comprises and allows its access and control by described public and/or the supplementary service that private network provides and/or the computer program of value-added service.For example, supplementary service comprises voice group call service, sound broadcasting service, the supplementary service of service definition identification of lines, Call Forwarding supplementary service, Call Waiting and calling maintenance supplementary service, multiparty teleconferencing, Closed User Group, advice of charge supplementary service, the supplementary service of forbidding conversing, non-structure supplementary service data, call display transfer, the calling that is accomplished to busy subscriber, short message service and " follow the tracks of and shift " business.Value-added service for example comprises Email, calendar and wireless stock etc.
WLAN is preferably compatible mutually with one or more high-performance wireless communication standards.ETSI (ETSI) standard that for example is used for broadband radio access network (BRAN) is as HiperLAN (HiperLAN/1), HiperLAN/2 or high-performance metropolitan area Access Network (HiperMAN) etc.Other examples comprise Electrical and Electronic engineer agreement 802.11 standards (IEEE 802.11), as 802.11 (a) and 802.11 (b).
The broadband RF business that communication system according to the present invention is safeguarded hotel, chain hotel, airport, Aerodrome Construction and the operator of other similar enterprises disposes in the building is particularly useful, perhaps particularly useful to the UE user with E-mail receiver/send function.
On the other hand, the present invention is in order that provide a kind of method that allows a plurality of UE through WLAN and public network and/or private network (VPN) communication.Usually, said method comprising the steps of: in described WLAN, receive and go to or from the call information of a UE among a plurality of UE; User ID and the security information of described UE are offered certificate server; And described UE is connected to described public network or private network by described WLAN.
Communicating by letter between the described UE that is promoted by described WLAN and the described public cellular net preferably includes voice communication.More preferably, described UE also comprises supplementary service and/or the required computer program of value-added service that access or control are provided by described public network or private network; And described method also comprises the step of this type of supplementary service of control and/or value-added service.
In one embodiment, UE also comprises the storage system that stores user ID and security information, and by user ID and the security information that is associated is provided from storage system, finishes the step that user ID and security information with UE offer certificate server.Perhaps, UE also comprises or is connected to the card holding device/card reader of multiple GSM type SIM card of maintenance or 3G type usim card, and the step that user ID and the security information of described UE offers described public cellular net is included on the card that keeps in card holding device/card reader reads user ID and security information, this information may be public network or private network reservation identifier, or the combination of public and special-purpose reservation data.
Communication system of the present invention and method are particularly useful in the public cellular net, and described public cellular net comprises GSM network that is connected to PSTN and/or the 3G network that is connected to GSM network, PSTN and/or internet.Described communication system provides the measure that is connected 802.11 networks with method, and described 802.11 networks are connected to described GSM network and described 3G network, to promote communicating by letter between a plurality of UE and the described public Cellular Networks.Usually, described communication system comprises and is used for the device that authentication and authorization inserts described system.The described device that authentication and authorization inserts can comprise RADIUS system or the server that is connected to described communication system by the VLR/RAIUS interface.
The accompanying drawing summary
After reading following detailed description the in detail in conjunction with the drawings, will know these and various other features and advantage of the present invention, in the accompanying drawing:
Figure 1A is the block diagram according to the communication system that comprises community wireless local area network (WLAN) of the embodiment of the invention;
Figure 1B is the block diagram of alternate embodiment of the communication system of Figure 1A;
Fig. 1 C is the block diagram of another alternate embodiment of the communication system of Figure 1A;
Fig. 2 is the block diagram according to the central base station transceiver station (CBTS) of the WLAN of community of the embodiment of the invention;
Fig. 3 is the block diagram of one of a plurality of long-range transceiver station (RTS) according to the WLAN of community of the embodiment of the invention;
Fig. 4 is that explanation is according to the flow chart that is used for providing between a plurality of subscriber equipment terminals (UE) and public network through the WLAN of community the process embodiment of voice communications versus data communications of the present invention;
Fig. 5 is the communication system block diagram according to the embodiment of the invention, shown in communication system have private network and public network, this private network comprises the wireless lan (wlan) that is connected to special-purpose Cellular Networks and PBX, and this public network has public global system for mobile communications (GSM) network and public 3G (Third Generation) Moblie (3G) network.
Fig. 6 is the block diagram according to the communication system of the embodiment of the invention, shown in communication system comprise the HiperLAN, the HiperMAN that are connected to special-purpose Cellular Networks and public network and 802.11WLAN and WLAN be connected to remote authentication dial-in customer service (RADIUS) server at public and special-purpose home location register place (HLR);
Fig. 7 is the block diagram according to the part communication system shown in Figure 6 of the embodiment of the invention, and it has shown radius server being connected to access point, subscriber equipment terminal (UE) and special-purpose HLR;
Fig. 8 is the communication system block diagram according to the embodiment of the invention, shown in communication system comprise 802.11 WLAN and the RAIDUS server that is connected to special-purpose Cellular Networks and public network;
Fig. 9 is the flow chart according to the embodiment of the invention, the process embodiment that its explanation allows UE to communicate through WLAN and special-purpose Cellular Networks and public network;
Figure 10 is the communication system block diagram according to the embodiment of the invention, shown in communication system comprise the corporate lan that is connected to public network by WLAN;
Figure 11 is the block diagram according to the alternate embodiment of communication system shown in Figure 10 of the present invention, shown in communication system have a plurality of radius servers, certificate server and client computer;
Figure 12 is the block diagram according to communication system embodiment of the present invention, shown in communication system have distributed special-purpose HLR and the certificate server that is used to realize the UE roaming;
Figure 13 is according to the present invention, comprises the block diagram of the another embodiment of communication system of a plurality of corporate lans;
Figure 14 is the block diagram of the route of communicating by letter in the communication system of the explanation WLAN of comprising according to the present invention and radius server; And
Figure 15 is the block diagram of explanation according to communication system architecture embodiment of the present invention.Describe in detail
The present invention provides the communication system and the method for big capacity voice and high-speed data communication in order that provide a kind of through comprising the communication system of community wireless local area network (WLAN) between a plurality of subscriber equipment terminals (UE) and public network.
Describe according to communication system of the present invention with reference to Figure 1A below.Figure 1A is according to the embodiment of the invention, has the exemplary block diagram of communication system that a plurality of subscriber equipment terminals (UE) is connected to the WLAN of community of public network.For clarity sake, this paper has ignored many details of communication system, particularly be widely known by the people and with many details of the incoherent public network of the present invention.
With reference to Figure 1A, the communication system 100 of innovation comprises the WLAN of community 102, and with thinking that a plurality of UE 104 in a plurality of different buildings or place 106 are provided to the access of public network 108, public network 108 comprises public switch telephone network (PSTN 110) and internet 112 etc.
Usually, the WLAN of community 102 comprises through the landline road or trunk 116 connects the central base station transceiver station (CBTS 114) of public network as E1 or t1 trunk circuit.CBTS114 also is connected to a plurality of long-range transceiver stations (RTS 118) through radio link, usually permanently install or fixed a RTS in each place 106, each RTS is connected to again such as a plurality of UE 104 such as phone 120, facsimile machine 122 and computers 124, so that be provided for the access to public network 108 of voice or data communication.Each UE 104 in the specific place 106 can be directly connected to RTS 118 by the special use connection, perhaps can connect as Ethernet, 100Base T, Fast Ethernet or Gigabit Ethernet by on-the-spot local area network (LAN) (LAN 126).
In a preferred embodiment, the WLAN of community 102 also comprises the special-purpose home location register place/certificate server (HLR/AuC 128) that is connected to CBTS 114, with the user-dependent information of record and storage and the WLAN of community.At work, RTS 118 or the UE 104 that introduces the zone that the WLAN102 of community served at first must provide authentication or authorization message to HLR/AuC 128.Usually, provide the mode of authenticated/authorized to be similar to the mode of global system for mobile communications (GSM) travelling carriage in the conventional gsm wireless network.Have following several mode can realize this purpose: (i) can be for each UE 104 is equipped with subscriber identification module (SIM) card, these cards are similar to those common in GSM travelling carriage cards; (ii) can forever or temporarily be equipped with a plurality of SIM card that can be associated with UE 104 for each RTS 118; Perhaps (iii) each RTS can be connected to storage system, the user ID and the security information of formation virtual SIM (VSIM) have been stored in this system, among this co-pending U.S. Patent application No.10/002551 that together transfers the possession of more detailed description is arranged, this patent is incorporated herein by reference.
Use HLR/AuC 128 and SIM to allow for and charge and generation and metered call detail record (CDR), help, and communicate between the UE 104 of permission in different places 106 with the WLAN of community 102 service areas from the input communication of public network 108.
The WLAN of community 102 also can select to comprise visitor register place (VLR) (not shown), is used to be maintained into sub-district or the visitor in zone or ramber's the user profile that the WLAN of community is served.
Figure 1B shows the alternate embodiment of communication system shown in Figure 1A 1, therein, CBTS114 is connected to PSTN 110 and internet 112 by public network 108, and this public network 108 also comprises the public wireless network that contains base station controller (BSC 130) and mobile switching centre (MSC 132).This embodiment may exceed in the service area of capacity of existing wireless or wired communication system (not shown) or the community particularly useful in the communication service demand.
Fig. 1 C has shown another alternate embodiment of communication system 100 shown in Figure 1A, and wherein, CBTS 114 is through satellite 134, and radio link is connected to PSTN 110 and internet 112 via satellite.This embodiment may be in routine wireless or wired communication system (not shown) not particularly useful in the zone of service or the community so far.
The primary clustering of the WLAN of community 102 is described below in more detail, i.e. CBTS 114 and RTS 118 with reference to Fig. 2 and Fig. 3.
With reference to Fig. 2, CBTS 114 is Network-In-a-Box (NIB) (case in network) fully independently preferably, as the WAVEXpress NIB platform that can buy from California door Lip river Parker's Interwave communication common carrier (Interwave Communications).Usually, CBTS 114 comprises in single chassis 136: (i) power supply 138; (ii) a plurality of card modules or block 140 comprise being used for a plurality of radio frequencies (RF) transceiver station of communicating by letter with RTS 118; (iii) be used to merge and go to and/or from the RF combiner 142 of the signal of a plurality of transceivers; (iv) be used to amplify the RF power amplifier 144 that receives and/or transmit; And (v) antenna 146.Card 140 preferably includes at least one GSM/GPRS transceiver 148, and it can use GSM standard or technology to provide data communication between public network 108 and UE 104.Card 140 preferably also comprises at least one WLAN transceiver 150, and it can use such as open standard agreements such as HiperLAN (HiperLAN/1) standard, HiperLAN/2 standard or Electrical and Electronic engineer agreement 802.11 (IEEE 802.11) standards and provide to the data communication of UE 104.More preferably, GSM/GPRS transceiver 148 all can be carried out non line of sight (NLOS) operation with WLAN transceiver 150.That is to say that they can be communicated by letter with the RTS 118 that is hidden or shields, disturbed vegetation, building or landform are covered between described RTS 118 and the CBTS 114.
In addition, card 140 can comprise and is used for a plurality of cards or the module of HLR/AuC 128 interfaces and is connected to the trunk 116 of public network 108.For example, card 140 can comprise E1 card, T1 card or ICP card.
According to a further aspect in the invention, CBTS 114 also can select to comprise frequency converter 152, to allow CBTS by having the signal of the frequency that normally used frequency range up-conversion obtains from gsm system or network, use GSM standard and RTS 118 to communicate, thereby the part of utilizing radio-frequency spectrum not use or underuse, increase the capacity of the WLAN of community 102, and avoid the transfer rate restriction.Preferably signal frequency is up-converted to ETSI (ETSI) and be the frequency range in the standard of gsm communication exploitation.It more preferably is the frequency range of about at least 3.5Ghz with the signal frequency up conversion.
With reference to Fig. 3, RTS 118 generally includes: (i) power supply 151; (ii) at least one GSM/GPRS transceiver 154; (iii) the WLAN transceiver 156; (iv) frequency converter 158; And (v) antenna 159.In addition, decide on the UE 104 and the connected mode thereof that are connected to specific RTS 118, RTS also can comprise a plurality of interfaces or the module (not shown) that is used for the UE interface.This class interface can comprise for example TCP/IP interface, Ethernet interface and scsi interface.
Now with reference to Fig. 4 process or the method for operation according to the communication system 100 of the embodiment of the invention described.Fig. 4 is the flow chart that explanation is used for providing between UE 104 and public network 108 through the WLAN of community 102 the method embodiment of voice communications versus data communications.In described method, in the WLAN of community 102, receive call information (step 160) from arbitrary UE or public network.The user ID of UE 104 and security information offer the WLAN102 of community by UE, and are verified (step 162) by HLR/AuC 128.The signal frequency up-conversion that will at least one transceiver among CBTS 114 and the RTS 118, generate, so that be higher than the radio signal of standard GSM frequency range by frequency CBTS is connected to RTS (step 164), and UE 104 is connected to public network 108 (step 166) by the WLAN of community 102.
On the other hand, the object of the invention provides the relevant UE of a kind of WLAN of permission and communication system and the method that public network communicates.
Describe according to communication system of the present invention now with reference to Fig. 5.Fig. 5 is the exemplary block diagram according to the communication system of the embodiment of the invention, shown in communication system have the WLAN that is connected to public network, this public network comprises GSM network and 3G network.For clarity sake, this paper has ignored many details of communication system, particularly be widely known by the people and with many details of incoherent GSM network of the present invention and 3G network.
With reference to Fig. 5, communication system 200 generally includes public core network or public network 202, and public network 202 comprises the public Cellular Networks 204 that is connected to PSTN 206 and internet 208.Public Cellular Networks 204 can comprise the 3G network 214 that is used for GSM 210 networks that communicate with public MS 212 and is used for such as 3G-UMTS (Universal Mobile Telecommunications System) etc. communicating with public UE 216.Public Cellular Networks 204 generally also comprises GPRS/3G-GPRS network 218.
According to the present invention, WLAN 228 is connected to public network 202 by NIB 224, and be suitable for special-purpose UE 230 and special mobile platform 226, common moving platform 212, public UE 216, PBX phone 234 and be connected to PSTN 206 and/or the phone (not shown) of internet 208 between realize voice communications versus data communications.The access point of WLAN 228 (among this figure show) can be by being connected to NIB 224 such as cable LAN (LAN 229) such as Ethernet, 100Base T, Fast Ethernet or Gigabit Ethernet or wireless or radio link (not shown).An advantage of communication system 200 of the present invention is to realize communicating by letter between the special-purpose UE 230 of the not control that public network 202 is low with cost, power is low, meanwhile, function that is provided and service with can be from the much higher radio station of the cost of public Cellular Networks 204 and/or special-purpose Cellular Networks 222, the function that obtains of MS 212 or UE 216 and serve roughly the same.
Be appreciated that, communication system 200 can comprise a plurality of special-purpose Cellular Networks 222, each special-purpose Cellular Networks 222 has the WLAN 228 that is associated, and each special-purpose Cellular Networks 222 links so that provide wireless or cellular-type communication through WLAN in the expansion service district by private wide area network (PWAN) (not shown).This embodiment also provides following advantage, promptly can avoid toll telephone also to safeguard the ownership and the control of the information that sends between the different places of the enterprise that links by PWAN.
In another embodiment, special-purpose UE230 also comprises the subscriber identification module (SIM 236) that is connected to this place, and this module has algorithm and key, communicates required authentication and encryption to support realization or promotion and public network 202 and/or special-purpose Cellular Networks 224.In a kind of form of this embodiment, each special-purpose UE230 comprises a card holding device/card reader (among this figure show) and is fixed on one or more GSM type SIM card or 3G type usim card (not shown) in card holding device/card reader; So that one or more users' brief information to be provided, this information can comprise the combination of public network or private network reservation identifier or public and special-purpose reservation data/identifier on card for each SIM card user ID and secure information storage.Perhaps, SIM 236 has comprised user ID and the security information in the storage system (not shown) that is stored in special-purpose UE 230.After this a form has following advantage, promptly allows to download SIM 236 together with the computer software or the program that allow special-purpose UE 230 simulations or serve as communication terminal from WLAN 228.Among the U.S. Patent application No.10/155931 common co-pending that this type of simulation program is transferred the possession of together more detailed description is arranged, this patent is incorporated herein by reference.
In another embodiment, private network 220 also comprises identification module 238, this module is connected to NIB 224, wherein having stored can be forever or at least one identifier or the virtual identifier that temporarily are associated with one or more special-purpose UE 230, communicates through WLAN228 and public network 102 and/or special-purpose Cellular Networks 222 to allow this special use UE.Identification module and virtual identifier proposed in November 1 calendar year 2001, had in the United States Patent (USP) 10/002551 common co-pending of Zhuan Ranging together in more detail to describe, and this patent is incorporated herein by reference.Usually, virtual identifier comprises algorithm and key, communicates required authentication and encryption to support promotion and public network 102 or special-purpose Cellular Networks 222.In a kind of form of this embodiment, identification module 238 comprises user ID and the security information that is stored in the storage system (not shown) that is connected to NIB 224.Perhaps, identification module 138 comprises aforesaid card holding device/card reader (not shown), and virtual identifier comprises aforesaid one or more GSM type SIM card or the 3G type usim card that remains in card holding device/card reader.
Virtual identifier can be one to one, be associated with special-purpose UE 230 on the basis of one-to-many or multi-to-multi; In the time of on the multi-to-multi basis, virtual identifier is safeguarded as the virtual identifier pond that is associated with special-purpose UE as required temporarily.Perhaps, virtual identifier can be associated with special-purpose UE 230 on many-to-one basis, so that can select to be used for record or a plurality of different user overviews of billing purpose by the user for single special-purpose UE provides.For example, the user when special-purpose UE 130 calls, if this calling is used for commercial object, then can import first code to select first user's overview by public Cellular Networks 204, if be used for private purpose, then can import second code.In addition, when communicating based on GSM network 210, communication system 200 or user can select the SIM identifier (virtual SIM) of GSM type; And when being connected to or pass through 3G network 214 routes, communication system 200 or user can select the USIM identifier (virtual USIM) of 3G type.
SIM 234 or identification module 238 and in special-purpose UE 230, allow the program or the software of its analog communication terminal preferably also to be suitable for making supplementary service and/or the value-added service that special-purpose UE can control or insert to be provided by special-purpose Cellular Networks 222 or public network 202 service providers.For example, supplementary service can comprise: voice group call service, sound broadcasting service, the supplementary service of service definition identification of lines, Call Forwarding supplementary service, Call Waiting and calling maintenance supplementary service, the supplementary service in many ways that comprises videoconference, Closed User Group, advice of charge supplementary service, the supplementary service of forbidding conversing, non-structure supplementary service data, call display transfer, the calling that is accomplished to busy subscriber, short message service and " follow the tracks of and shift " business.Value-added service comprises for example Email, calendar and wireless stock etc.
WLAN 228 can comprise that one or more separately and the network that separates each network uses a kind of agreement in the multiple different agreement, comprises IEEE 802.11 standards (802.11) and such as the etsi standard of HiperLAN or HiperMAN.These standards are used for guaranteeing working but the interoperability of the Wireless Telecom Equipment made by different manufacturers at same frequency spectrum.Specifically, BRAN is the ever-increasing market demand pressure of response to low-cost, big capacity radio link, and by one group of communication standard that is used for wideband radio access network of ETSI exploitation, it is mainly used in European countries.BRAN provides to the access of network that is operated in licensed band or unlicensed band or WLAN with 25Mbit/s or faster rate.IEEE 802.11 standards are similar one group of wlan standards.Two types HiperLAN:(i is arranged) HiperLAN/1, the communication of about 20 Mbytes of the highest per second (Mbps) is provided in the 5GHz frequency range; And (ii) HiperLAN/2, the communication of the highest 54Mbps is provided in same frequency range.HiperMAN is the similar standard that is used to serve the system of urban area.Though HiperLAN is used in the bigger communication system that may be defined as wireless MAN rather than WLAN usually, be appreciated that principle of the present invention can be applicable to this type of communication system.Therefore, be appreciated that term WLAN refers to WLAN (wireless local area network) and wireless MAN when using in this article.It is a series of related specifications or the standard of radio communication exploitation that IEEE 802.11 refers to by IEEE, comprises 802.11,802.11a, 802.11b, 802.11g and 802.11x.802.11 be similar to HiperLAN, and be applied to use frequency-hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS), have 1 or the WLAN of 2Mbps transfer rate in the 2.4GHz frequency range.802.11a be 802.11 the expansion that is applied to WLAN, the transfer rate of the highest 54Mbps be provided in the 5GHz frequency range, and use the OFDM encoding scheme but not FHSS or DSSS.802.11b be also referred to as two-forty 802.11 or WiFI, be another kind of expansion, it provides the transfer rate of the highest 11Mbps in the 2.4GHz frequency range, the radio function that realization can match in excellence or beauty with Ethernet.Therefore, 802.11b is with gprs system interface according to the present invention or to be connected to this system particularly useful when realizing the wireless transmission of data.802.11g be applicable to WLAN, and provide transfer rate greater than 20Mbps in the 2.4GHz frequency range.
In another embodiment, WLAN 228 also is connected to internet 208 by fire compartment wall 240, so that special-purpose UE230 can transmit video and voice data and/or transmission or download is gone to or from the big file or the annex of other data handling systems or server.Special-purpose UE 230 preferably is suitable for allowing the user to carry out the communication of for example voice communication and carry out communicating by letter of for example data communication with the terminal that is connected to internet 208 by phone in special-purpose Cellular Networks 222 or the public network 202 or terminal.More preferably special-purpose UE 230 comprises computer program, realizes speech network communication (VoIP) based on Internet Protocol simultaneously in order to phone by being connected to internet 208, WLAN 228, LAN 229 or another IP network or terminal (not shown).The standard VoIP program that on many computers and portable computer, has become standard that the VoIP program can comprise that UE 230 carries or comprise together VoIP program, virtual SIM as previously described or simulation program with computer software of downloading from WLAN 228 or program.
In another embodiment, the computer or the terminal 242 that are connected to NIB 224 by LAN 229 also are suitable for carrying out voice communications versus data communications through NIB 224 and interface function or link from NIB to public and special-purpose Cellular Networks 204,222 with phone or terminal in public Cellular Networks 204 and/or the special-purpose Cellular Networks 222.
The embodiment of communication system 200 of the present invention is described in more detail now with reference to Fig. 6.With reference to Fig. 6, public network 202 comprises the public HLR/VLR that is connected to GSM network 210 and 3G network 214.The public HLR of HLR/VLR 244 can comprise for example attaching position register and/or home subscription server HSS, and record and storage and the user-dependent information of public network.The VLR of HLR/VLR 244 safeguards sub-district or the visitor in zone or ramber's the user profile that public Cellular Networks 204 is served.Usually, HLR/VLR 244 comprises that also many service providers are used to authenticate to authentication and the accounting server or the function (not shown) of the access of public GSM network 210 and/or public 3G network 214.
GSM network 210 comprises Gateway Mobile Switching Center (GMSC 246), and this GMSC is connected to PSTN 206 by landline road or trunk 248, is connected to HLR/VLR 244 by C interface or link 250.GMSC 246 is gateway switching center or switch, and it is with the calling of PSTN 206 guiding or be routed to MS 212 and with the calling guiding of MS or be routed to PSTN.The third generation mobile services switching centre (3G-MSC 252) that is connected to HLR244 by D interface or link 254 in GSM network 210 travelling carriage 212 and the public UE of 3G network 124 between the reciprocal exchange of business and coordination are provided.3G-MSC 252 also can select to comprise another or the 2nd VLR, to be maintained into 3G-MSC Serving cell or the visitor in zone or ramber's user profile.3G-MSC 252 also is connected to one or more MSC 256 by E interface or link 258, has only shown one of them MSC among the figure.The same with 3G-MSC 252, MSC 256 also can comprise VLR, to be maintained into MSC Serving cell or the visitor in zone or ramber's user profile.MSC 256 is connected to one or more BSC 262 by A interface or link 260 again, and each BSC 262 is by Abis interface or the one or more BTS 264 of link 266 controls.MSC 156 also is connected to special-purpose Cellular Networks 222 by special-purpose A link intelligent multiplexer interface function or link (PALIM 268).In the U.S. Patent No. 5818824,5734699,5999813 and 6212395 that PALIM function or link are transferred the possession of together more detailed description is arranged, all these patents are incorporated herein by reference.
In the embodiment shown, 3G network 214 comprises third generation Gateway GPRS Support Node (3G-GGSN 270), and this node is connected to internet 208 by Gi interface or link 272, and is connected to HLR 244 by Gc interface or link 274.3G-GGSN 270 provides interface between 3G Cellular Networks 214 and IP network such as internet 208.Be connected to HLR 244 and handle data service in 3G Cellular Networks 214 coverages by Gr interface or link 278 by the third generation Serving GPRS Support Node (3G-SGSN 276) that Gi link 280 is connected to 3G-MSC 252.3G-SGSN 276 also can select to be connected to the local second generation (2G) or GPRS SGSN 282 by gn interface or link 284, to provide interface between 3G Cellular Networks 214 and WLAN 228.3G-SGSN 276 also is connected to one or more 3G radio network controllers (3G-RNC 286) by Iu-PS interface or link 288, has only shown one of them controller among the figure.Each 3G-RNC 286 is by Iub interface or the one or more Node B 190 of link 292 controls.3G-RNC 286 also is connected to 3G-MSC 252 by Iu-CS interface or link, with the MS 212 of public UE 216 and GSM network 210 be connected to PSTN's 206 or the phone (not shown) between provide and communicate by letter.
As shown in Figure 6 and as mentioned above, WLAN 228 can comprise one or more separately and the network that separates or access point 228A, 228B, 228C, each network or access point use multiple different agreement, comprise aforesaid HiperLAN, HiperMAN and 802.11.Can select the particular network or the agreement of use among the WLAN 228 according to some factors, these factors comprise: the scope of cost, required bandwidth or bit rate or requirement, frequency and control restriction.For example, adopt the Europe of HiperLAN standard or the communication system 200 of other countries use HiperLAN/1 or HiperLAN/2, and the system of the U.S. can use one of 802.11 standards according to required bit rate.Serve the urban area or need the communication system 100 of bigger capacity or bandwidth can use the HiperMAN standard.
Equally as shown in Figure 6, WLAN 228 can be connected to a plurality of different pieces in internet 208 and GSM network 210 and/or the 3G network 214.For example, in 3G network 214, WLAN 228 can be connected to 3G-GGSN 270 by NIB 224 and through IuPSWLAN interface or link 296, be connected to GPRS SGSN282 through IuPSWLAN interface or link 298, be connected to 3G-RNC 186 through IubisWLAN interface or link 300, and/or be connected to one or more Node B 290 through NodeBWLAN interface or link 302.In GSM network 110, WLAN 228 can be connected to BTS268 through BTSWLAN interface or link 304, is connected to BSC 262 through AbisWLAN interface or link 306, and/or is connected to MSC 256 through AWLAN interface or link 308.In addition, as mentioned above, WLAN 228 can pass through NIB 224, and is connected to MSC 256 through PALIM link 268.
Be appreciated that to comprise at WLAN 228 and a plurality ofly may use different agreement or not use the individual networks of different agreement or access point 228A, 228B, 228C part that each independent access point can be connected to the different piece of public network 202 by NIB 224.For example, may wish that the access point 228 that will use the 802.11b standard to carry out high speed data transfer is connected to GPRS SGSN 282.
In another embodiment, communication system 200 also comprises remote authentication dial-in customer business (RADIUS) system 310, and it has RADIUS authentication and charging gateway or server 312.As shown in the figure, the RADIUS system can make up with NIB 224, perhaps can comprise with the NIB branch and opening and different independent radius servers 312.RADIUS is authentication and the charge system that is used to authenticate to the access of communication system by many service providers.Though the RADIUS specification is not formal standard, it is safeguarded by a working group of internet engineering task group (IETF).Usually, RADIUS requires the user to import username and password, and whether username and password can be passed to radius server 312 correct with inspection message, and mandate is linked into communication system 200.In the RADIUS system 310 or the independent authentication/authorization services device (showing among this figure) that is connected to radius server 312 provide or support the roaming function of UE 230 between a plurality of access point 228A, 228B, 228C and public Cellular Networks 204.In addition, radius server 312 receives charging grouping or the call detail record (CDR) that is generated by diverse access point 228A, 228B, 228C, and these groupings of chargeing are forwarded to the accounting server (not shown) by radius proxy interface (not shown), so that respective communication each side is chargeed.
Radius server 312 preferably is connected to public HLR/VLR 244 and special-purpose HLR (PHLR 316) and/or special-purpose VLR (PVLR 318) through VRAD 314.As shown in the figure, VRAD 314, special-purpose HLR 316 and special-purpose VLR 318 can make up with RADIUS system 310, perhaps can comprise with the RADIUS system and separating and different separate servers.For example, VRAD 314, special-purpose HLR 316 and special-purpose VLR 318 can with NIB 224 combination, and system 310 or server 312 can separate with NIB 224 and different as mentioned above.Special-purpose HLR 316 stores the information that is registered to or adds the UE 230 of communication system 200 (concrete as WLAN 228 and/or special-purpose Cellular Networks 222) of closing.Special-purpose VLR 318 can temporarily store user or UE 230 when user or UE 230 roams in the WLAN228 service area relevant information.VRAD 314 is VLR-RADIUS interfaces, and it comprises inner integrated VLR320 and Extensible Authentication Protocol (EAP) interface 322, so that send signal to public HLR/VLR 244 and special-purpose HLR 316.Radius server 312 is connected to public HLR/VLR 244 by EAP through RADIUS link (EAP/RADIUS link 324).Radius server 312 is connected to public HLR/VLR 144 by the SIM link that is used for transfer of data through EAP (this figure does not show) also through LAN 229 and internet 208.Radius server 312 is connected to one or more access point 228A, 228B, 228C through NIB 224 and LAN 229.
Radius server 312 is supported the roaming of special-purpose UE 230 based on RADIUS/DIAMETER roaming model, and roams based on traditional GSM user of the MAP that is used for ramber's address registration and intersystem handover procedures (MAP) standard.As the part SS7 agreement that is used for GSM, MAP is with ramber's address registration and intersystem handover procedures standardization.Have a plurality of special-purpose Cellular Networks 222 in communication system 200, when each network has the WLAN 228 that is associated and passes through the link of PWAN (not shown), radius server 3 12 can serve as the agency, so that authentication request is forwarded to public HLR/VLR 244 of single central authorities and/or the special-purpose HLR 316 of single central authorities through VRAD 314.Perhaps, if communication system 100 comprises distributed public HLR/VLR 244 and/or distributed special-purpose HLR 316, then radius server 312 is the user name that provides in the authentication procedure or the explanation of user ID are routed to suitable public or special-purpose HLR.In a kind of form of this embodiment, radius server 312 be enhanced to get in touch with by following arbitrary mode suitable or control public or special-purpose HLR244,314:(i) the independent central address list server (not shown) that connects of inquiry to be to offer IMSI International Mobile Subscriber Identity (IMSI) information of corresponding HLR in the coupling verification process; Perhaps (ii) use IMSI scope and suitable or control the allocation list that public or special-purpose HLR is complementary.If for the configuration of the user among a plurality of public or special-purpose HLR 244,316 (subscriber provisioning) impliedly or explicitly enabled the IMSI subregion, then back one model is very effective.
In addition, because the position of special-purpose UE 230 is known in radius server 312 and/or VLR 320 during authentication or enrollment process, communication system 200 then of the present invention can or provide service according to position or location-based service construction.
From Fig. 7, can be more clearly visible between special-purpose UE 230 and the radius server 312 and radius server and public or special-purpose HLR 244,316 between be connected.With reference to Fig. 7, access point 228C perhaps is connected to radius server 312 through independent radio link (not shown) and EAP/SIM link 326 through LAN 229, and is connected to special-purpose HLR 316 through EAP/RADIUS link 324.In alternate embodiment embodiment illustrated in fig. 6, authenticated/authorized can be handled by independent authentication/authorization services device 328, and this server is connected to special-purpose HLR 316 through dedicated link 330 as shown in the figure.As previously described and as shown in Figure 7, special-purpose UE 230 must provide authentication information in the mode that is similar to GSM MS 212.Usually, realize that this purpose has three kinds of different modes or method, comprising: (i) use USB (USB) adapter 332, this adapter to allow special-purpose UE 230 to communicate through usb bus 334 and GSM type SIM card or 3G type usim card; (ii) use PCMCIA adapter (not shown), this adapter allow special-purpose UE 230 directly and GSM type SIM card communicate; Perhaps (iii) as above the summary and U.S. Patent application No.10/002551 in greater detail mode use virtual SIM.
Now with reference to Fig. 8 the preferred embodiment that WLAN 128 wherein comprises 802.11 networks is described.With reference to Fig. 8, public Cellular Networks 104 comprises GSM network 110 and 3G network 314 as mentioned above.WLAN 228 comprises 802.11 networks, and this network has one or more 802.11 access points 336 (only having shown one of them access point), and is suitable for connecting communicating by letter between special-purpose UE 230 and public network 202 and/or the special-purpose Cellular Networks 222 according to the present invention.Special-purpose UE230 can comprise such as voice communication assembly 230A such as radio telephone or travelling carriage with such as data communication equipment 230C such as beep-pager, facsimile machine, portable computer, network access equipment and PDA(Personal Digital Assistant)s.
In 3G network 214,802.11 access point 228C is connected to 3G-GGSN 270 by NIB 224 and through IuPS802.11 interface or link 338, be connected to GPRS SGSN 282 by NIB and through IuPS802.11 interface or link 340, be connected to 3G-RNC 286 by NIB and through Iubis802.11 interface or link 342, and/or be connected to one or more Node B 290 by NIB 224 and through NodeB802.11 interface or link 344.In GSM network 210,802.11 access point 228C can be connected to BTS 268 by NIB 224 and through BTS802.11 interface or link 346, be connected to BSC 262 by NIB 224 and through Abis802.11 interface or link 348, and/or be connected to MSC 226 by NIB 224 and through A802.11 interface or link 350.In addition, as mentioned above, WLAN 228 can be connected to MSC 256 by NIB 224 and through PALIM link 268.
Method or the process that is used to operate according to the communication system 100 of the embodiment of the invention described now with reference to Fig. 9.Fig. 9 is explanation promotes method for communicating step between special-purpose UE 230 and the public network 202 through WLAN 228 a flow chart.In described method, in WLAN 228, receive and go to or from the call information (step 352) of one of a plurality of special-purpose UE 230.User ID and the security information of special-purpose UE 230 offer RADIUS system 310 (step 354), and special-purpose UE 230 is connected to public network (step 356) by WLAN.In a preferred embodiment, communicating by letter between special-purpose UE 230 and the public network 202 is voice communication, and described method also is included as the step (step 358) of the supplementary service that UE control or access provide by special-purpose Cellular Networks 222 or public network 202 service providers.
As mentioned above, can provide user ID and security information from the 3G type USIM that is associated with each special-purpose UE 230 or GSM type SIM 236 or the identification module 238 from special-purpose Cellular Networks 222.In addition, if the identification module 238 of communication system 200 comprises the storage system (not shown) that stores user ID and security information, then providing the user ID of special-purpose UE 230 and the step of security information (being step 354) to RADIUS system 310 is by provide the user ID and the security information that are associated with special-purpose UE to finish from storage system.Perhaps, if communication system 200 also comprises the card holding device/card reader that keeps many cards being associated with special-purpose UE 232, then step 354 comprises user ID and the security information during reading many of being stored in that card holding device/card reader keeps one of blocks.
To Figure 16 some one exemplary embodiment according to communication system of the present invention and using method thereof and advantage are described now with reference to Figure 10.
Figure 10 is the embodiment block diagram according to communication system 200 of the present invention, shown in communication system have the private companies LAN 360 that comprises WLAN 228, it is connected to public Cellular Networks 204 (as home public land mobile network (HPLMN)), RADIUS system 310 and certificate server 328.Usually in this embodiment, except that WLAN 228, corporate lan 360 also comprises hub or router three 62, and it is connected to a plurality of access point 228A, 228B, 228C and other-end among the WLAN by wired lan 329, as terminal 343 or server 364.As mentioned above, RADIUS system 310 comprises radius server or gateway and the special-purpose HLR (not showing among this figure) in order to authorize access communication system 200.Certificate server 328 provides or supports the roaming function of special-purpose UE 230 between a plurality of access point 328A, 328B, 328C and public Cellular Networks 204.RADIUS system 310 communicates with acquisition user certificate and encryption key with certificate server 328, thereby realizes real GSM type authentication.For providing enough levels other fail safe in communication system 200, certificate server 328 preferably uses GSM A3/A8 algorithm to generate key.According to the present invention, the data in the user-accessible server 364 of UE230 communicate with another UE or the other-end or the phone that are connected to public Cellular Networks 204 simultaneously.This embodiment provides central special-purpose HLR (not showing among this figure) in RADIUS system 310, so that will operate and management function is concentrated, and WLAN 228 is inserted or control replenishes or value-added service and communicate necessary change with the public Cellular Networks 204 of special-purpose UE 230 and drop to minimum.Special-purpose HLR preferably can handle or serve at least about 100000 travelling carriages, UE 230 or user and at least about 200000 certificate servers 328, local uses such as this makes, and this embodiment is particularly suitable on the airport, hotel, conference centre.
Figure 11 is the block diagram of the alternate embodiment of communication system shown in Figure 10, shown in communication system have a plurality of RADIUS 310A of system, 310B or special-purpose HLR and certificate server 328A, 328B and by NIB 224A, the 224B of PWAN 366 links with distribution HLR registration and authentication load.This embodiment is specially adapted to move in a plurality of different places the enterprise of a plurality of different WLAN 228 or corporate lan 360A, 360B.For example, chain hotel, Fun parks or the commercial center that has by individual enterprise and/or manage.
Figure 12 is the block diagram of another alternate embodiment of communication system shown in Figure 10, be used to illustrate enable 802.11 or the UE of GPRS be connected to ownership private network 220B and be connected to promptly be interviewed the roaming between the private network 220B of being interviewed of Public Land Mobile Nerwork (VPLMN) of the public Cellular Networks 204B that is interviewed.With reference to Figure 12, by local or be interviewed public Cellular Networks 204B and corporate lan, can communicate with terminal in another UE 2130B ownership private network 220A and the corporate lan 360 or the terminal in server 364 and the public network 202 to the visiting special-purpose UE 230A of corporate lan 260 coverages.Authenticate UE 230A and authorize access communication system 200, RADIUS message can be sent to RADIUS gateway or server 312 among the NIB (showing this figure) or the private network 220B that is interviewed by router three 60 from visiting UE 230A.Radius server 312 determines that the user profile of visiting UE 230A is not stored among the special-purpose HLR 216B, but is stored among the special-purpose HLR316A of ownership private network 220A.RADIUS message is sent to special-purpose HLR 316A and certificate server 328A the ownership private network 220A of visiting UE 230A from radius server 312 through PWAN 366 subsequently.Notice that in this embodiment, each distributed special-purpose HLR 316A, 316B can be littler, and can handle still less travelling carriage, UE 230 or user than the HLR in the foregoing description.
Figure 13 is the another embodiment block diagram according to communication system 200 of the present invention, shown in communication system be particularly suitable on the airport, hotel, conference centre etc. are local uses.In this embodiment, in the first company place or position 368 safeguard dedicated network or corporate lan 360, dedicated network or corporate lan 360 comprise radius server 312, special-purpose HLR 316, certificate server 328, WLAN 228 and are connected to the server 364 of WLAN and the LAN 229 of access point 228A, 228B, 228C.The private network 220 of primary importance 368 is connected to internet 208 by router three 62, and is connected to other special- purpose HLR 316A, 316B and certificate server 328A on other company positions 370 by PWAN 366.This embodiment provides distributed HLR and certificate server, OAM(Operation Administration Maintenance) is concentrated in the PWAN 366 simultaneously, for special-purpose Cellular Networks 222 provides value-added service, and corporate lan 360 realized that communicating necessary change with public Cellular Networks (not showing in this figure) drops to minimum.Each littler distributed HLR 316,316A, 316B and certificate server 328,328A preferably can handle or serve at least about 8000 travelling carriages, UE 230 or user.
Figure 14 is the block diagram of the communicate by letter route of explanation in the communication system 200 of WLAN of comprising 228 according to the present invention and RADIUS system.With reference to Figure 14, arrow 372 shown user data from UE 230 by WLAN 228 access point 228C, LAN 229 and fire compartment wall 240 to the data path of IP network such as internet 208.According to the present invention, shown in arrow 374,376 and 378, same or other UE 230 is connected to public Cellular Networks 204 or PLMN simultaneously by RADIUS system 310.Specifically, arrow 374 and 376 has shown signaling paths, and RADIUS message transmits with identification UE 230 by this path and authorizes access communication system 200.Arrow 378 explicit user data paths transmit the data that comprise voice, figure or image and other data by this path between UE230 and public Cellular Networks 204.
Figure 15 is the another embodiment block diagram of communication system 200, and it has shown according to communication system architecture of the present invention.With reference to Figure 15, the core of communication system 200 is NIB224, and it has made up MSC 396, GSM/GPRS radio device 398, special-purpose HLR 316 and special-purpose VLR 318.MSC 396 is connected to GSM/GPRS radio device 398 by interface 400, is connected to special-purpose HLR 316 and special-purpose VLR318 by VRAD interface 322.NIB 224 is connected to WLAN access point 228C by the EAP link, thereby makes NIB realize global function GSM/GPRS cellular capacity, and GSM/GPRS type safety and roaming function are expanded to UE 230 by WLAN 228.WLAN client computer or UE 230 that the business that provides by NIB 224 can be provided generally include: the LAN PC card 402 of realizing wireless access; GSM type SIM 234; Allow the client software or the driver 404 of the supplementary service that UE analog communication terminal and/or control provides by communication system 200; And underlying operating system 406.
To repeat importances more of the present invention now, further to emphasize its structure, function and advantage.
Be appreciated that, can be used for obtaining used authentication of any encryption equipment and encryption key such as wlan standards such as IEEE 802.1X, HiperLAN/1 or HiperLAN/2, HiperMAN and BRAN, and can be used for the periodic refresh key and authenticate again to guarantee that keying material is up-to-date.These standards are not stipulated a kind of authentication method; On the contrary, they utilize Extensible Authentication Protocol (EAP) as its authentication framework.This makes the access point 228 of enabling WLAN can support multiple authentication method, comprises authentication, smart card, token card and disposal password (one time and passwords) based on certificate.Perhaps, because switch and access point 228A, 228B, 228C serve as the pass-through (pass-through) of EAP, therefore, by on main frame and back-end authentication server 328, adding software, can add new authentication method and need not to upgrade switch or access point.
Use is that access control function is built among each access point 228A, 228B, the 228C based on the major advantage of the certificate scheme of WLAN.Enable 802.11 access point 228A, 228B, 228C can be directly and RADIUS system 310 or server 312 communicate, user or UE 230 are authenticated and generate the encryption key of session.Access point 228A, 228B, 228C can also store user's station message recording, and transfer them to the RADIUS system 310 that uses the RADIUS account agreement.Be used in the access that is provided to internet 208 among the WLAN 228 of wired lan 229 and service provider's operation based on the scheme of WLAN 228.And, according to being built in such as can by using the authentication function of WLAN 228, simplifying the client computer part of network greatly from the WLAN many operating systems such as WindowsXP operating system that Microsoft buys.
According to another advantage of communication system 200 of the present invention is that cellular services provider or service provider's needs are installed access point 228A, 228B, the 228C that enables WLAN on a small quantity at service area, each access point just can be directly and RADIUS system 310 or server 312 communicate.Adopt EAP and wlan standard to provide and between access point 228A, 228B, 228C and RADIUS system, carry out the required fail safe of message.
Another advantage is that EAP allows certificate server 328 to use different authentication methods according to the configuration of RADIUS system 310 and/or certificate server.Therefore, cellular services provider can adopt the authentication based on SIM, and 802.11 access informations are combined with GSM user's overview.Can obtain to be entitled as the draft of " EAP SIM authentication " (EAPSIM authentication) from internet engineering task (IETF), it has summarized the authentication based on SIM of using EAP, and this draft is incorporated herein by reference.
In one embodiment, the EAP interface 322 to radius server 312 is added among the VLR 320 of NIB 224.This will allow to realize that between WLAN228 client computer UE 230 and special-purpose HLR 316 certificate of certification that is packaged among the EAP exchanges after based on the authentication of GSM.Special-purpose HLR 316 also can as reservation overview, service quality (QoS) etc., thereby realize any Differentiated Services for access point 228A, 228B, 228C provide arbitrary user specific information.
In another embodiment, miniature SIM card card reader 332 is connected to such as UE 230 such as personal computer (PC) or laptop computers through usb bus 334, is used in the authentication of client support based on SIM.For example, allowing to generate and exchange certificate of certification based on the WLAN driver of the computer of Windows and the acquisition between the SIM card card reader 332/write interface layer between SIM and access point 228A, 228B, the 228C.
In another embodiment, the support that the WLAN session key is generated can be used and be similar to the algorithm that the GSM encryption key generates and realize, with the level of security of guaranteeing that level of security that wlan solution provides approaches to provide among the GSM.
In another embodiment, by using independent accounting server (not shown), realized based on the charging of RADIUS and current GSM Call Data Record being intercommunication ability between the CDR.This accounting server receives the RADIUS account data from access point 228A, 228B, 228C, and according to user's overview for example data transaction is become CDR based on GSM, and uses file transfer protocol (FTP) (FTP) to send it to charging entity.
In another embodiment, communication system 200 according to the present invention can be supported based on the roaming of WLAN 228 UE 230 of RADIUS/DIAMETER roaming model and based on traditional GSM user's of MAP roaming.Requirement such as different UEs 230 such as 802.11 network insertion platforms is comprised the WLAN business that telecommunications company provides of subscribing.Usually, the user will be by enabling the customer equipment of WLAN or the network of UE 230 access service providers such as laptop computer etc.The operating system of client computers preferably includes WLAN and supports, as mentioned above, this support can be built-in or be realized by other drivers or the simulation program downloaded from the service provider.Satisfying two of this requirement, to know operating system be MicrosfotWindows 2000 and Microsoft Windows XP .
The mode that UE 230 can be similar to the GSM travelling carriage authenticates.There is multiple feasible method can realize this authentication.In one approach, UE 230 need the authentication drivers in case with SIM card 234 interfaces of GSM type.This can provide the PCMCIA adapter or the USB adapter 332 that communicate with GSM type SIM card 234 to realize by using to UE 230.USB adapter 332 is littler than PCMCIA adapter, and price is more reasonable, is preferable interface.The GSM authentication be on the wlan security framework, simulate, EAP expansion module or interface needed.EAP interface 322 will communicate with GSM type SIM card 234, and this SIM card use such as PC smart card (PC/SC) interface etc. obtain and insert as dynamic link library file (DLL) API (API) of UE 230 from the service provider.
Among the conventional WLAN for generating and use session key will follow the vendor specific interface usually to the WLAN block encryption.Therefore, the session key that is used for the WLAN block encryption depends on manufacturer's specification.In a preferred embodiment, encryption key is to generate according to the one or more keys (Kc) that generate during the EAP/GSM authentication in communication system of the present invention.
Need must obtain based on the authentication of WLAN and session encryption support with access point 228A, 228B, the 228C of communication system 200 cooperatings of the present invention.Access point 228A, 228B, 228C also need to serve as the RADIUS client computer of RADIUS system 310 or server 312, and serve as network access server (NAS) in user authentication process, thereby transmit exchange EAP message through RADIUS message.Access point 228A, 228B, 228C are provided, and two manufacturers that satisfy above-mentioned specification comprise the Proxim company of California Sani Wei Er and the Cisco company of San Jose.
Except that the above, communication system 200 preferably also comprises the radius server that can carry out following function:
● with access point 228A, 228B, 228C interface, special-purpose UE 230 is authenticated by username field or EAP user identification field in the explanation RADIUS authentication request 398.
● authentication request is routed to appropriate authentication server 328.
● by according to the contained information of username field, authentication request is routed to suitable HLR, serves as the agency of public HLR/VLR 244, or when enabling roaming, serve as the agency of outside RADIUS system 310 or special-purpose HLR 316.
● when public or special-purpose HLR 244,316 is central HLR, radius server 212 will serve as the agency, so that authentication request is forwarded to HLR.
● when public or special-purpose HLR 244,316 was distributed HLR, radius server 312 can be suitable for getting in touch with correct HLR by following arbitrary mode:
1. inquire about independently central address table (CAT) server (not shown), with the HLR of coupling corresponding to user IMSI; Perhaps
2. use allocation list (not shown) that the IMSI scope of UE 230 and control HLR are complementary (if for the configuration of the user among a plurality of HLR impliedly or explicitly enabled the IMSI subregion, then this model is effective.)
● receive the RADIUS account grouping that generates by diverse access point 128A, 128B, 128C.
● by EAP interface 222 charging is forwarded a packet to the accounting server (not shown).
● for the roamer, a copy that divides into groups chargeing is forwarded to UE 230 ownership radius server 312 or accounting servers.
RADIUS or special-purpose HLR 316 preferably support all following attribute or abilities:
● according to user IMSI is that the ability that WLAN 228 inserts is enabled/forbidden to particular UE 230.
● when the Session Timer of access point 228A, 228B, 228C expires, the ability (session timeout value) that the user is authenticated with WLAN228 again.
● use algorithm authentication WLAN 228 users' ability (identifying algorithm).
● no matter when attempt WLAN and insert or authenticate, define message informing user's ability (notification message) by operator with suitable text.
● specify the ability of the longest no activity time, after this time, will supposition UE 230 leave the scope of access point 228A, 228B, 228C, and from active user list with its deletion (it is overtime to leave unused).
● specify in and forbid that UE 230 carries out the ability (retry limit) that WLAN inserts the maximum times of the preceding authentication attempt of failure continuously.
More preferably, the RADIUS of communication system 200 or special-purpose HLR 316 support following read only attribute:
● store the ability (calling-station-ID) of information that relevant user is used to insert UE 230 MAC Address of WLAN 228.
● the ability of carrying out the date and time of authentication attempt last time on WLAN 228 (turn-on time last time) is provided.
● provide last time UE 230 successfully to carry out the ability (last time success turn-on time) of the date and time of WLAN 228 authentications.
● the ability of other miscellaneous link informations of being transmitted by access point 228A, 228B, 228C is provided, for example, waits (link information) with the 10MBPS connection based on 802.11b.
As mentioned above, RADIUS or special-purpose HLR 216 will only use EAP interface and radius server 312 to communicate.This will be avoided using, create and safeguard specialized protocol between radius server and HLR.Support EAP interface 322, then will realize following:
● implement the MD5 algorithm and serve as the identity of public or special-purpose HLR agency's radius server 312, and from encrypting messages, obtain user profile with checking.
● the EAP interface is monitored well-known radius server port, and only handle those RADIUS message that comprise the EAP attribute, to carry out EAP authentication (identity request, access inquiry (access challenge), EAP success or failure) program to finish authentification of user.
● use all useful WLAN user profile informations that on public or special-purpose HLR, dispose, make up RADIUS and accept message.
At last, in one embodiment, provide user management user interface (SMGUI414),, comprised for example read only attribute of display communication system 200 to allow providing WLAN 228 service attributes.In a kind of form of this embodiment, can be by the demonstration of using asynchronous mechanism to refresh SMGUI 414 automatically to special-purpose HLR 316.Perhaps, realize, the refresh button on the SMGUI 414 can be used for obtaining to upgrade from special-purpose HLR 316 for simplifying.
More than for reaching diagram and illustrating that purpose of the present invention has provided the explanation at specific embodiment of the present invention.These explanations are not for exhaustive or the present invention is limited to disclosed concrete form, obviously, can carry out many modifications and variations according to above-mentioned instruction.Selecting and describing these embodiment is in order to explain principle of the present invention and practical application thereof best, thereby makes those skilled in the art can use the present invention best, can expect that many in addition various modifications are to be suitable for the embodiment of special-purpose.The scope of the invention is by appended claims and equivalent definition thereof.
Writing the present invention openly is to understand for the ease of those skilled in the art.For other readers, can obtain other information by reading following document, these documents are incorporated herein by reference:
" local area network (LAN) and metropolitan area network; the ieee standard of WLAN medium access control (MAC) and physical layer (PHY) standard " (Local and Metropolitan AreaNetworks, IEEE Standard for Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, IEEE Std.802.11-1997, pp.34-59 and pp.123-128);
" HiperLAN: high performance radio local area network standard " (" HiperLAN:TheHigh Performance Radio Local Area Network Standard ", by G.A.Halls, Elec.﹠amp; Comm.Eng.Journal, Dec.1994, pp.289-296).
Claims (36)
1. communication system that voice communications versus data communications is provided between public network and a plurality of subscriber equipment terminal (UE), described communication system comprises:
Community wireless local area network (WLAN), it comprises the central base station transceiver station (CBTS) that is connected to described public network; And
A plurality of long-range transceiver stations (RTS), each long-range transceiver station is connected to a plurality of described UE, and is connected to described CBTS through radio link;
Between described public network and described a plurality of UE, provide voice communications versus data communications thus.
2. communication system as claimed in claim 1 is characterized in that described public network comprises public switch telephone network and internet, and described CBTS is connected to described public network by trunk line.
3. communication system as claimed in claim 1 is characterized in that, described CBTS and each RTS comprise global mobile communication system/general grouping wireless service (GSM/GPRS) transceiver that is used for providing data communication between described public network and described a plurality of UE.
4. communication system as claimed in claim 3 is characterized in that, described CBTS and each RTS also comprise the WLAN transceiver that is used for providing voice communication between described public network and described a plurality of UE.
5. communication system as claimed in claim 4, it is characterized in that described WLAN transceiver and the open standard protocol-compliant of from following group, selecting: HiperLAN (HiperLAN/1), HiperLAN (HiperLAN/2) and Electrical and Electronic engineer agreement 802.11 (IEEE802.11).
6. communication system as claimed in claim 5, it is characterized in that, each RTS among described CBTS and the described a plurality of RTS comprises frequency converter, and each RTS is suitable for using on the frequency that is higher than 900Mhz standard GSM frequency range the GSM technology to communicate among described CBTS and the described a plurality of RTS.
7. communication system as claimed in claim 6 is characterized in that, each RTS among described CBTS and the described a plurality of RTS is suitable for using on certain frequency range in (ETSI) standard the GSM technology to communicate.
8. communication system as claimed in claim 7 is characterized in that, each RTS among described CBTS and the described a plurality of RTS is suitable for using the GSM technology to communicate on the frequency range of about at least 3.5Ghz.
9. communication system as claimed in claim 1 is characterized in that described public network comprises public switch telephone network and internet, and described CBTS is connected to described public network through public wireless network.
10. communication system as claimed in claim 1 is characterized in that described public network comprises public switch telephone network and internet, and described CBTS is connected to described public network through satellite.
11. a transceiver station that is used in the communication system, described transceiver station comprises:
Antenna;
Global system for mobile communications (GSM) transceiver; And
Frequency converter, described frequency converter are connected between the described GSM transceiver, use the GSM technology to communicate on the frequency that is higher than conventional GSM frequency range to be implemented in.
12. transceiver station as claimed in claim 11 is characterized in that, is suitable for using on certain frequency range in (ETSI) standard the GSM technology to communicate.
13. transceiver station as claimed in claim 12 is characterized in that described transceiver station is suitable for using the GSM technology to communicate on the frequency range of about at least 3.5Ghz.
14. transceiver station as claimed in claim 11 it is characterized in that described GSM transceiver is GSM/ GPRS (GSM/GPRS) transceiver, and described transceiver station is suitable for transmitting data.
15. method that is used for communication system, described communication system comprises community wireless local area network (WLAN) and a plurality of long-range transceiver station (RTS) that contains the central base station transceiver station (CBTS) that is connected to public network, wherein each long-range transceiver station is connected to the some subscriber equipment terminals in a plurality of subscriber equipment terminals (UE) and is connected to described CBTS through radio link, described method is used for providing voice communications versus data communications between described a plurality of UE and described public network, and it comprises the following steps:
Receive the call information among the described WLAN of community;
User ID and the security information of described UE are offered the described WLAN of community; And
By the described WLAN of community described UE is connected to described public network.
16. method as claimed in claim 15 is characterized in that, described public network comprises public switch telephone network and internet, and the step that described UE is connected to described public network is comprised the step that described CBTS is connected to described public network by trunk line.
17. method as claimed in claim 15, it is characterized in that, described CBTS and each RTS comprise global mobile communication system/general grouping wireless service (GSM/GPRS) transceiver, and the step that described UE is connected to described public network comprised use GSM standard that described CBTS is connected to described RTS, between described public network and described a plurality of UE, to provide data communication.
18. method as claimed in claim 17, it is characterized in that, described CBTS and each RTS also comprise the WLAN transceiver, and the step that described UE is connected to described public network comprised use wlan standard that described CBTS is connected to described RTS, between described public network and described a plurality of UE, to provide voice communication.
19. method as claimed in claim 18, it is characterized in that described wlan standard is the open standard agreement of selecting from following group: HiperLAN (HiperLAN/1), HiperLAN (HiperLAN/2) and Electrical and Electronic engineer agreement 802.11 (IEEE802.11).
20. method as claimed in claim 19, it is characterized in that, each RTS among described CBTS and the described a plurality of RTS comprises frequency converter, and the step that described UE is connected to described public network comprised the signal frequency up-conversion that generates at least one transceiver in described GSM/GPRS and described WLAN transceiver, so that the radio signal that is higher than the standard GSM frequency range of 900Mhz by frequency is connected to described RTS with described CBTS.
21. method as claimed in claim 20, it is characterized in that the step of the signal up-conversion that will generate comprises the step that the described frequency upconversion of described signal is arrived certain frequency range in (ETSI) standard at least one transceiver in described GSM/GPRS and the described WLAN transceiver.
22. method as claimed in claim 21, it is characterized in that the step of the signal up-conversion that will generate comprises that the described frequency upconversion with described signal arrives at least approximately step of 3.5Ghz frequency range at least one transceiver in described GSM/GPRS and the described WLAN transceiver.
23. method as claimed in claim 15, it is characterized in that, described public network comprises public switch telephone network and internet, and the step that described UE is connected to described public network is comprised the step that described CBTS is connected to described public network through public wireless network.
24. method as claimed in claim 15 is characterized in that, described public network comprises public switch telephone network and internet, and the step that described UE is connected to described public network is comprised the step that described CBTS is connected to described public network through satellite.
25. a communication system comprises:
Public network, it comprises:
Be connected to global system for mobile communications (GSM) network of public telephone network (PSTN); And
Be connected to 3G (Third Generation) Moblie (3G) network of described GSM network and internet;
The private network that comprises special-purpose Cellular Networks; And
Be connected at least one Electrical and Electronic engineer agreement 802.11 (802.11) network in described public network and the described private network, described 802.11 network configuration are for promoting a plurality of subscriber equipment terminals (UE) and the communication between terminals that is connected to described public network and described private network.
26. communication system as claimed in claim 25 is characterized in that, the described communication that is promoted by described 802.11 networks between described UE and described public Cellular Networks comprises voice communication.
27. communication system as claimed in claim 25 is characterized in that, the described UE that is associated with described 802.11 networks comprises computer program, uses so that described UE can be provided by the supplementary service that is provided by described public network and described private network.
28. communication system as claimed in claim 25 is characterized in that, described UE comprises lower powered not control transceiver.
29. communication system as claimed in claim 25 is characterized in that, the described terminal that is connected to described public network and described private network comprises phone, GSM travelling carriage and 3G UE.
30. communication system as claimed in claim 25 is characterized in that, described private network also comprises PBX (PBX), and the described terminal that is connected to described private network comprises the PBX phone.
31. communication system as claimed in claim 25, it is characterized in that also comprising remote authentication dial-in customer business (RADIUS) server, this server is used for the UE by the described communication system of described 802.11 network insertions is authenticated and authorize the described communication system of access.
32. communication system as claimed in claim 31 is characterized in that also comprising:
A plurality of 802.11 networks;
Be connected to home location register place (HLR) and visitor register place (VLR) of described radius server; And
Wherein said radius server is suitable for providing roaming function for described UE between described a plurality of 802.11 networks.
33. communication system as claimed in claim 25 is characterized in that, described special-purpose Cellular Networks comprises mobile switching centre (MSC), and described 802.11 networks are connected to described public network by described MSC.
34. communication system as claimed in claim 33 is characterized in that, described 3G network comprises radio network controller (RNC), and described 802.11 networks are connected to described RNC through the Iubis802.11 interface.
35. communication system as claimed in claim 33 is characterized in that, described 3G network comprises Node B, and described 802.11 networks are connected to described Node B through the NodeB802.11 interface.
36. communication system as claimed in claim 33, it is characterized in that, described 3G network comprises third generation gateway general packet radio service (GPRS) support node (3G-GGSN), and described 802.11 networks are connected to described 3G-GGSN through IuPS802.11 interface, internet and Gi interface.
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| CN101977073A (en) * | 2010-10-28 | 2011-02-16 | 中国华录集团有限公司 | Bidirectional authentication system for satellite receiving terminal and receiving antenna |
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| CN103259774A (en) * | 2012-05-07 | 2013-08-21 | 中国交通通信信息中心 | Service processing system based on satellite communication service |
| CN104285499A (en) * | 2009-06-26 | 2015-01-14 | 宇宙桥有限公司 | Private cellular system with auto-registration functionality |
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| US7782876B2 (en) * | 2003-01-08 | 2010-08-24 | Vtech Telecommunications Limited | Wireless voice data gateway |
| US7440472B2 (en) | 2003-08-28 | 2008-10-21 | Tekelec | Methods and systems for providing wireless local area network (WLAN)—base transceiver station (BTS) gateway |
| US7940746B2 (en) | 2004-08-24 | 2011-05-10 | Comcast Cable Holdings, Llc | Method and system for locating a voice over internet protocol (VoIP) device connected to a network |
| US7738488B2 (en) | 2004-09-15 | 2010-06-15 | Tekelec | Methods, systems, and computer program products for providing wireless-fidelity (Wi-Fi) gateway visitor location register (VLR) functionality |
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| US8204543B2 (en) | 2005-08-01 | 2012-06-19 | Ubiquisys Limited | Local area cellular basestation |
| CN103260271A (en) * | 2005-08-01 | 2013-08-21 | Ubiquisys有限公司 | Local area cellular basestation |
| CN101278577B (en) * | 2005-08-01 | 2014-02-12 | Ubiquisys有限公司 | Local area cellular basestation |
| US8676265B2 (en) | 2005-08-01 | 2014-03-18 | Ubiquisys Limited | Local area cellular basestation |
| US8738084B2 (en) | 2005-08-01 | 2014-05-27 | Ubiquisys Limited | Local area cellular basestation |
| US8909294B2 (en) | 2005-08-01 | 2014-12-09 | Ubiquisys Limited | Local area cellular basestation |
| CN103260271B (en) * | 2005-08-01 | 2016-08-24 | Ubiquisys有限公司 | Local area cellular basestation |
| CN104285499A (en) * | 2009-06-26 | 2015-01-14 | 宇宙桥有限公司 | Private cellular system with auto-registration functionality |
| CN101977073A (en) * | 2010-10-28 | 2011-02-16 | 中国华录集团有限公司 | Bidirectional authentication system for satellite receiving terminal and receiving antenna |
| CN101977073B (en) * | 2010-10-28 | 2012-11-14 | 中国华录集团有限公司 | Bidirectional authentication system for satellite receiving terminal and receiving antenna |
| CN103259774A (en) * | 2012-05-07 | 2013-08-21 | 中国交通通信信息中心 | Service processing system based on satellite communication service |
| CN103259774B (en) * | 2012-05-07 | 2016-03-16 | 中国交通通信信息中心 | A kind of transaction processing system based on satellite communications services |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003063404A3 (en) | 2004-03-11 |
| WO2003063404A2 (en) | 2003-07-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: LGC WIRELESS CO., LTD. Free format text: FORMER OWNER: INTERWAVE COMMUNICATIONS INC. Effective date: 20080104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080104 Address after: American California Applicant after: Lgc Wireless Co., Ltd. Address before: American California Applicant before: Interwave Communications Inc |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |