CN1933670B - Information update method for access points, and handoff support apparatus and method using the same - Google Patents
Information update method for access points, and handoff support apparatus and method using the same Download PDFInfo
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- CN1933670B CN1933670B CN2006101074277A CN200610107427A CN1933670B CN 1933670 B CN1933670 B CN 1933670B CN 2006101074277 A CN2006101074277 A CN 2006101074277A CN 200610107427 A CN200610107427 A CN 200610107427A CN 1933670 B CN1933670 B CN 1933670B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
- H04W12/069—Authentication using certificates or pre-shared keys
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/60—Context-dependent security
- H04W12/69—Identity-dependent
- H04W12/73—Access point logical identity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- 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]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/02—Inter-networking arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
Abstract
If a hand-held terminal is connected to a single AP, the AP is provided from an administration server information of all the APs controlled by the administration server, transmits the information to the hand-held terminal, updates and stores it, and uses the updated and stored information of the APs to execute handoff. Basic lines and forwarding lines are disposed between all the APs and a private branch exchange, and a communication channel is formed using the basic lines to allow transferring the communication channel to the forwarding lines, thereby enabling to continuously perform a telephone communication session even if there is handoff during the telephone communication session using the hand-held terminal.
Description
Priority request
The application is based on the korean patent application Nos.2005-0067559 and the 2005-0081612 that submit in Korea S Department of Intellectual Property (KIPO) on July 25th, 2005 and on September 2nd, 2005, and it is comprised fully and be incorporated herein by reference at this.
Background technology
This explanation relates to and is used for the access point information updating method of (being called AP hereinafter), it is suitable for being updated in the information of a plurality of AP that store in the handheld terminal, the invention still further relates to handoff support apparatus and the method for using this information updating method, it is used to use the updated information of AP to support the handover of handheld terminal.
Wireless personal local area network (WPAN) is to be used for making that handheld terminal can be at the communication network of the mutual executive communication of the use wireless channel of the short distance within about 10 meters in a small amount.Key in the WPAN technology is known as ultra broadband (UMB) communication, bluetooth, wireless lan (wlan), Zigbee and Infrared Data Association.
WPAN is widely used in the wire communication that substitutes the terminal that is positioned at short distance with radio communication.Therefore, the expection of the range of application of WPAN will broaden.
Recently, because bluetooth standard version 1.0 is declared to be the official standard of bluetooth sig (SIG) (Ericsson, Nokia, IBM, Toshiba and Intel), exploitation is as the bluetooth of typical short-range communication technique bright spot more.Form the official group of IEEE802.15 working group, and itself and SIG close cooperation are to set up the international standard based on bluetooth standard as international standard.
Versions 1.0 provides the transfer rate up to 1Mbps.Consider the header of grouping, the active data transfer rate up to 723.2kbps, is 57.6kbps at other direction in a direction, and two-way be 433.9kbps.Transmission range in the 1mw transmitted power in about 10m, and the highest 100mW of regulation transmitted power.
Bluetooth is provided with 79 channels that each has the 1MHz bandwidth in industrial scientific medical (ISM) frequency range that can not had the 2.4000-2.4835GHz that permissively uses by the user, and sends data in about 1600 the change channels of per second in frequency-hopping spread spectrum.
Bluetooth can accurately send data by using frequency-hopping spread spectrum in the wireless environment with heavy noise, and frequency interferences is avoided in the grouping of can jumping by emission/reception predetermined packet of packets with on the frequency of new channel.Therefore, bluetooth can be carried out jump with same frequency more apace in other system, and can use shorter grouping more stably to send data.
Because short-range communication technique is installed to handheld device such as mobile communication terminal, handheld device can receive the reservation service that is provided by AP through the mode of short-range communication link interconnection by handheld device and AP.For example, provide to the AP that installs in each family and office to be connected private branch exchange (PBX) system of wired telephone network, can use handheld terminal to provide the telephone conversation service through AP and PBX system with wired telephone network or ground line by its user with the short haul connection that allows handheld terminal execution and AP.
In addition, provide a plurality of AP to organize, and handheld terminal make it possible to receive the reservation service that is provided by group thus according to the single AP in the optionally connection group of current location with formation to the single management server.
Connect in the situation of AP at handheld terminal, should at first search for the AP that can connect through short-range communication link, and the authentication process of AP that should carry out search is to obtain the authentication of connection.In order to obtain the authentication of connection, should provide inherent address and personal identification number (PIN) sign indicating number to each AP.Simultaneously, handheld terminal should be stored address and the PIN code of AP in advance.
For the authentication that obtains connecting, handheld terminal is at first searched for AP obtaining its address, and sends PIN code corresponding to the address that obtains to AP.AP relatively its own PIN code with if identical then authentication is connected with two PIN code by the PIN code of handheld terminal transmission.
Handheld terminal should store a plurality of AP address and PIN code, being used for a plurality of AP of single management server admin, and being used for handheld terminal and optionally connecting a plurality of AP.
Should be by to handle the storage that handheld terminal carries out AP address and PIN code by the user, this takies a lot of times and causes a lot of inconvenience.As a result, need make it possible in handheld terminal, easily store the technology of AP address and PIN code.
Summary of the invention
The purpose of this invention is to provide a kind of information updating method that is used for access point (AP), can provide all AP address and PIN code the group of installing to handheld terminal from any one single AP by it, and if the single AP in the handheld terminal connection group and obtain authentication then can upgrade AP address and PIN code with a plurality of AP.
Another object of the present invention provides the handoff support apparatus and the method for the updated information of a kind of AP of use, uses the updated information of AP to carry out the handover of handheld terminal by it.
A purpose provides the handoff support apparatus and the method for the updated information of a kind of AP of use again, communication channel can be switched in order to avoid the PBX system that connects PSTN (PSTN) is installed therein by it in group, and handheld terminal disconnects telephony communication session when AP is connected with the PBX system that handover comes into force in the situation of PSTN.
According to the information updating method that is used for access point, be connected to by the AP among a plurality of AP of single management server admin in the handheld terminal request, and obtain in the situation that authentication connects handheld terminal by the PIN code through an AP, an AP is to the positional information of management server notice handheld terminal and upgrade this information.If upgrade the positional information of handheld terminal, management server provide all from AP information of management to an AP, thereby and an AP provide all AP information to upgrade to handheld terminal and storage AP information.
Information updating method according to the AP of being used for of the present invention comprises: handheld terminal is by being connected to AP by authentication to AP; AP obtains all information by the management service management from the management server that is connected to itself and local area network (LAN); With the AP information that sends all acquisitions to handheld terminal so that handheld terminal can upgrade and store all AP information of storing in advance.
According to handoff support apparatus and the method for using updated information, basic circuit is installed between a plurality of AP and PBX system and is transmitted circuit.Management server through an AP provide all Zi the AP information of management to hand-held terminal, thereby if connect handheld terminal then upgrade and store AP information by obtain authentication from an AP.If handheld terminal request telephony communication session, an AP uses basic circuit to form communication channel, and allows to carry out telephony communication session.The handover of telecommunications handheld terminal if desired, the 2nd AP use the authentication that the updated information of handheld terminal obtains connecting and connect.In addition, the PBX system responses forms communication channel through transmitting circuit with the 2nd AP in the request of an AP, makes the user to carry out telephony communication session continuously through hand-held terminal.
Therefore, use the handoff support apparatus of the updated information of AP to comprise: the handheld terminal of carrying out short haul connection; The a plurality of AP that connect handheld terminal through short-range communication link; The PBX system that connects PSTN (PSTN); Be connected respectively to a plurality of AP and PBX system to form the basic circuit of communication channel; Be connected respectively to a plurality of AP and PBX system to form the forwarding circuit of communication channel when the handheld terminal handover; And management server, it is used for the storage of the renewal of the information of a plurality of AP of control handheld terminal when handheld terminal connects AP and is used to control the handover that a plurality of AP make it possible to manage handheld terminal.
In addition, the handover support method that is used for the information updating method of AP comprises: handheld terminal is by being connected to an AP by authentication to the AP; The one AP obtains all information by the management service management from the management server that is connected to itself and local area network (LAN); With the AP information that sends all acquisitions to hand-held terminal so that handheld terminal can upgrade and store all AP information of storing in advance; The one AP forms communication channel so that handheld terminal can be carried out telephony communication session through PSTN with the PBX system; Management server is determined the handover of handheld terminal, and handover, then handover handheld terminal to the two AP if desired; And between PBX system and the 2nd AP, form communication channel so that handheld terminal can be carried out telephony communication session continuously through PSTN.
Description of drawings
Fig. 1 has illustrated the wherein signal flow graph of the conventional method of handheld terminal connection AP;
Fig. 2 has illustrated the block diagram of wherein using according to the system configuration of information updating method of the present invention;
Fig. 3 is the signal flow graph that has illustrated according to information updating method of the present invention;
Fig. 4 is the block diagram that has illustrated according to the structure of handoff support apparatus of the present invention;
Fig. 5 a, 5b and 5c have illustrated the signal flow graph of wherein carrying out the work of handover in method of attachment according to the present invention.
Embodiment
With reference to figure 1, connect in the situation of AP with the reception reservation service at handheld terminal, handheld terminal is at first searched for AP (S100).The search of AP makes handheld terminal at first carry out inquiry.Inquiry makes handheld terminal send challenge message, and repeats the wait work of reception about the challenge response of the challenge message of transmission.
Use and address inquires to access code transmission challenge message, make a plurality of AP that are arranged in the short haul connection zone can receive message.Thereby AP carries out to address inquires to scan to respond and addresses inquires in the situation that receives the challenge message that is sent by handheld terminal.Challenge response make frequency hopping that AP sends from the address comprise that it is own to handheld terminal synchronously (FHS) divide into groups.Afterwards, handheld terminal obtains to send the AP address of challenge response.In case search AP, the handheld terminal request connects AP (S102).AP carries out and judges the authentication process (S104) of whether permitting connecting handheld terminal afterwards.
Authentication process makes AP to handheld terminal request PIN code, and handheld terminal search is corresponding to the PIN code of the AP address that obtains, and sends this PIN code to AP.AP compares the PIN code of the PIN code and its oneself that is sent by handheld terminal to judge whether they mate (S106).
Result as a comparison, if they do not match, the AP refusal permits connecting handheld terminal (S108).If their couplings, AP determines that handheld terminal is to have the handheld terminal that connects permission, and permits connecting to allow handheld terminal to connect through short-range communication link, makes to send tentation data (S110) mutually.
In addition, AP sends positional information and the lastest imformation (S112) that the notice handheld terminal is connected to AP to the management server of management AP.Between handheld terminal and AP, exchange tentation data, and the reservation service (S114) of handheld terminal requirement is provided.
Under this situation, AP judges be connected (S116) that whether cancels with handheld terminal.When AP departs from from the short haul connection zone and determines to connect cancellation can not carry out short haul connection the time.Simultaneously, AP can determine that cancellation connects in response to the request of handheld terminal.
As the result who determines, if disconnect handheld terminal, be connected (S118) of AP cancellation and handheld terminal, and AP transmission positional information is to the management server of having cancelled with handheld terminal that is connected, here management server lastest imformation (S120) and terminating operation.
If handheld terminal connects AP and provides aforesaid reservation service to handheld terminal, handheld terminal should use AP address and PIN code to receive the authentication that is connected to AP.Therefore, handheld terminal should store AP address and PIN code in advance.
Forming single group, and handheld terminal is according to a plurality of AP in the optionally connection group of its current location and receive in the situation of service at a plurality of AP of single management system management, and handheld terminal should store the address of a plurality of AP in advance and belong to the PIN code of group.By the storage of user's manual control handheld terminal execution AP address and PIN code, and a plurality of AP of manual singly storage address takies a lot of times with the PIN code that belongs to this group.In addition, the number of AP increases or reduces in no matter when organizing, and should upgrade and is stored in the AP address and the PIN code of storing in the handheld terminal.Therefore, need in handheld terminal, upgrade and store a plurality of AP address and the PIN code of single group of formation simply.
Now, with reference to figure 2, reference number 200 and 202 is represented first and second AP respectively.First and second AP200 are connected the handheld terminal 220 in the short haul connection zone 210 and 212 that is arranged in them respectively with 202 through short-range communication link, and the reservation service by handheld terminal 220 requests is provided.
Reference number 230 expression management servers.Management server 230 is connected with 202 with first and second AP200, for example, through LAN240, and exchanges predetermined information betwixt.Management server 230 is according to the renewal and the storage of the information of a plurality of AP in the information updating method control handheld terminal 220 of the present invention.
Now, describe the information updating method of the present invention of the system applies of this structure in detail with reference to figure 3.
If handheld terminal 220 connects first and second AP200 and 202 to receive reservation service, handheld terminal 220 is at first searched for AP200 and 202 (S300).AP200 and 202 search make handheld terminal 220 carry out inquiries and AP200 and 202 and carry out and address inquires to scanning.
If search for AP200 and 202 like this, handheld terminal 220 requests are connected to AP200 and 202 (S302).At this moment, suppose that handheld terminal 220 is positioned near the short haul connection zone 210 of an AP200, and in search is handled, search an AP200, and handheld terminal 220 requests are connected to an AP200 and provide description.
Afterwards, the one AP200 carries out the authentication process (S304) that determines whether to allow to connect handheld terminal 220, and an AP200 is to handheld terminal 220 request PIN code, and handheld terminal 220 is in response to the PIN code of request search corresponding to the address of an AP200, and PIN code to the AP200 of transmission search.The PIN code that AP200 is relatively sent by handheld terminal 220 and its PIN code are to judge whether two PIN code mate (S306).
As the result who judges, if determine that two PIN code do not match, AP200 refusal connects handheld terminal 220 (S308).If the PIN code coupling, an AP200 determines that handheld terminal 220 is the handheld terminals 220 that allow connection, and allows to be connected to handheld terminal through short-range communication link, makes to exchange predetermined information (S310) between an AP200 and handheld terminal 220.
In addition, an AP200 sends positional information and notifies it to be connected to handheld terminal 220 to its management server 230, and lastest imformation (S312).After upgrading the positional information of handheld terminal 220, management server 230 provides all information of the AP of current management, just, connects its oneself first and second AP200 and 202 a address and PIN code to the AP200 (S314) through LAN240.
Afterwards, the one AP200 sends first and second AP200 that provides from management server 230 and 202 address and PIN code to handheld terminal 220, and wherein handheld terminal 220 upgrades by all addresses and the PIN code of the AP200 of management server 230 management and 202 and stores its (S316).
Under this situation, an AP200 and handheld terminal 220 exchange predetermined informations, and the reservation service (S318) of being asked by handheld terminal 220 is provided.Judge after the AP200 whether to cancel and connect handheld terminal 220 (S320).Can depart from from the short haul connection zone of an AP200 and judge with the time can not carry out short haul connection the time and connect cancellation at handheld terminal 220.Can also when the request of the connection cancellation that has handheld terminal 220, judge and connect cancellation.As the result who judges, if being connected of cancellation and handheld terminal 220, be connected (S322) of the one AP200 cancellation and handheld terminal 220, and send positional information being connected to management server 230 notice cancellations and handheld terminal 220, with the positional information (S324) of renewal handheld terminal 220, and terminating operation.
As mentioned above, according to feasible address and the PIN code of only handling the AP200 among handheld terminal 220 storage a plurality of AP200 and 202 of the information updating method of AP of the present invention by the user.In addition, if the AP200 in the short haul connection zone of handheld terminal 220 search the one AP200, authentication connects and connects afterwards, the one AP200 sends by all addresses of first and second AP of management server 230 management and PIN code to hand-held terminal 220, wherein handheld terminal 220 schedulers and PIN code and store it in its memory.
As a result, need in handheld terminal 220, not store singly by first and second AP200 of management server 230 management and 202 address and PIN code by the user.Simultaneously, if increased or reduced by the AP of management server 230 management, address and the PIN code that can upgrade and store AP in handheld terminal 220 are not simply handled handheld terminal 220 and do not need to seek help by the user.
Fig. 4 has illustrated the block diagram of the structure of handoff support apparatus, use above-mentioned information updating method according to the present invention to upgrade the information of AP by it by handheld terminal, and support handover in order to avoid break telephony communication session through the situation that PSTN comes into force in telephony communication session.Reference number 400 and 402 is represented an AP and the 2nd AP respectively.First and second AP connect the handheld terminal 420 in the wireless short- range communication zone 410 and 412 that is arranged in them through short-range communication link, and the reservation service by handheld terminal 420 requests is provided.
In addition, when handheld terminal 420 handovers, PBX system 430 connects the second and the one AP402 of handover and 400 forwarding circuit 452 and 450 formation communication channels through hand-held terminal 420, carries out telephony communication session continuously to allow handheld terminal 420.
In handoff support apparatus, suppose that handheld terminal 420 is arranged in the short-distance wireless communication zone 410 of an AP400, and carry out telephony communication session through PSTN according to such configuration of the present invention.Handheld terminal 420 is carried out search operations searching for an AP400, and request is connected to an AP400 of search.The one AP400 carries out in response to connection request and judges the authentication process that whether allows to connect handheld terminal 220.Authentication process makes the AP400 request PIN code of winning, and handheld terminal 400 sends the PIN code of storage in advance of an AP400 to an AP400 according to request.
If by PIN code and its own PIN code coupling that handheld terminal 420 sends, an AP400 permits connection handheld terminal 220.If connecting an AP400 and handheld terminal 420, the one AP400 sends location information notification management server 460 handheld terminals 420 and connects its oneself.Management server 460 is updated in the wherein positional information of storage, and provides current by first and second AP400 that itself manages and 402 address and PIN code to an AP400.
The one AP400 sends first and second AP400 that provided by management server 460 and 402 address and PIN code to handheld terminal 420, and wherein handheld terminal 420 upgrades by the address and the PIN code of first and second AP400 of management server 460 management and 402 and stores it.
If handheld terminal 420 is asked telephony communication session in this case, the communication channel of AP400 formation and PBX430 makes it possible to carry out telephony communication session (S520) through PSTN thus.
If need the handover of handheld terminal 420 in this case, management server 460 is to first and second AP400 and 402 indication handovers.Afterwards, AP400 notice handover connects for handheld terminal 420 and cancellation.
If the connection of cancellation between an AP400 and handheld terminal 420, the 2nd AP402 request connects handheld terminal 420, and also connects with the PIN code execution authentication process of the 2nd AP402.If the 2nd AP402 is connected with handheld terminal 420, management server 460 is notified the number of the forwarding circuit 452 that connects between the 2nd AP402 and PBX430 to an AP400.The one AP400 request PBX430 transmits through the forwarding circuit 452 of the 2nd AP402.PBX430 transmits circuit 452 in response to the request of the forwarding of an AP400 through the dependency number purpose and forms communication channel, makes handheld terminal 420 to carry out telephony communication session continuously through the 2nd AP402.
With reference to figure 5, handheld terminal 420 is carried out search operation to search for an AP400 (S500) when being arranged in the wireless short-distance zone 410 of an AP400.Aforesaid search operation makes handheld terminal 420 carry out and addresses inquires to, and an AP400 carries out inquiry scanning to allow handheld terminal 420 search the one AP400.
Handheld terminal 420 requests connect an AP400 (S502) of search, and an AP400 carries out the authentication process (S504) whether judgement permits connecting handheld terminal 420.Aforesaid authentication process is the PIN code of an AP400 to handheld terminal 420 requests the one AP400, and handheld terminal 420 sends the PIN code of storage in advance of an AP400 to an AP400 in response to the request of an AP400.
The one AP400 compares the PIN code of the PIN code and its oneself that is sent by handheld terminal 420 to judge whether they mate (S506).
As the result who judges, if two PIN code are inequality, AP400 refusal connects handheld terminal 420 (S508).If two PIN code couplings, an AP400 determines that handheld terminal 420 is the handheld terminals of permitting connection, and permits connecting handheld terminal 420 and exchanging tentation data (S510) betwixt through short-range communication link.
The one AP400 sends location information notification handheld terminals 460 and is connected to its own and lastest imformation (S512) to its oneself management server 460.If upgrade the positional information of handheld terminal 420, management server 460 provides current by its first and second AP400 that oneself controls and 402 address and PIN code (S514) to an AP400.
The one AP400 sends first and second AP400 that provided by management server 460 and 402 address and PIN code to handheld terminal 420, and handheld terminal 420 upgrades by the address and the PIN code of first and second AP400 of management server 460 controls and 402 and stores its (S516).
If handheld terminal 420 is asked the telephony communication session through PSTN under present case, the one AP400 forms communication channel (S518) through basic circuit 440, and be connected handheld terminal to PSTN420 through an AP400, basic circuit 440 with PBX430 in proper order, make it possible to carry out telephony communication session (S520) thus.
In this case, management server 460 is judged the handover (S552) that whether needs handheld terminal 420, the feasible signal strength indicator (RSSI) that receives by first and second AP400 and 402 input that receive from handheld terminal 420 of the judgement of the handover of handheld terminal 420, and the RSSI that sends detection is to management server 460, and wherein management server 460 is by determining handover from first and second AP400 and 402 RSSI that send.
As the result who determines, handover if desired, management server 460 is to first and second AP400 and 402 indication handovers (S524).In other words, being connected of AP cancellation and handheld terminal 420, thereby and the 2nd AP402 indicate handover to be connected to handheld terminal 420.
Afterwards, an AP400 is to handheld terminal 420 notice handovers (S526), and being connected of cancellation and handheld terminal 420 (S528).The one AP400 sends the positional information that is connected of notifying cancellation and handheld terminal 420 to management server 460, makes it possible to upgrade the positional information (S530) of handheld terminal 420.
In addition, the 2nd AP402 request connects handheld terminal 420 (S532) and carries out authentication process (S534) through the PIN code of the 2nd AP402.Authentication process makes the PIN code of the 2nd AP402 to handheld terminal 420 request the 2nd AP402, and handheld terminal 420 is in response to the request of the 2nd AP402, concurrent the 2nd AP402 that sends them to is provided and the PIN code of the 2nd AP402 that upgrades from an AP400 in step S516 search.
The 2nd AP402 compares the PIN code of the PIN code and its oneself that is sent by handheld terminal 420 to judge whether they mate (S536).As the result who judges, if two PIN code are inequality, AP400 refusal connects handheld terminal 420 (S538).If two PIN code couplings, the 2nd AP402 determines that handheld terminal 420 is the handheld terminals of permitting connection, and permits connecting handheld terminal 420 (S540) through short-range communication link.The 2nd AP402 is to the positional information of management server 460 notice handheld terminals 420 connections the 2nd AP402, and the number (S542) of the forwarding circuit 452 that connects between the 2nd AP402 and PBX430.
The one AP400 request PBX430 transmits communication channel (S546) through the forwarding circuit 452 of the 2nd AP402.PBX430 transmits circuit 452 in response to the request of an AP400 through the dependency number purpose and connects PSTN to form communication channel (S548).In other words, the forwarding circuit 452 of PBX430 through connecting the 2nd AP402 connects PSTN to form communication channel.
As a result, the handheld terminal 420 that is connected to the 2nd AP402 can be connected to communication channel continuously, makes the user can keep carrying out telephony communication session and does not have interruption (S550).
As mentioned above, make handheld terminal only store address and PIN code according to handoff support apparatus of the present invention and method by single AP among a plurality of AP of management service management, if and, can provide, upgrade and store all addresses and PIN code by a plurality of AP of management server control from the authentication of single AP acceptance to connecting.Therefore, even it does not store address and PIN code by a plurality of AP of management server control in advance, handheld terminal can be carried out handover.
In addition, if basic circuit is provided between AP and PBX and transmits circuit, handheld terminal is handover when being connected to single AP, and form communication channel to carry out telephony communication session through basic circuit, communication channel is transferred to the forwarding circuit of AP so that handheld terminal can be carried out telephony communication session and not interrupt communication channel continuously.
Foregoing embodiment and advantage only are exemplary, are not interpreted as limitation of the present invention.Content of the present disclosure can be applicable to the device of other types.Specification of the present invention is illustrative, does not limit the scope of claims.To one skilled in the art, many replacements, modification and change all are conspicuous.
Claims (19)
1. information updating method that is used for each access point (AP), it comprises: handheld terminal is by being connected this AP at AP by authentication; If handheld terminal is connected to AP, then this AP gives management server the location information notification of this handheld terminal; Described management server upgrades the positional information of handheld terminal; Each AP is from connecting all information that its management server acquisition own and local area network (LAN) is managed by this management server; With the AP information that sends all acquisitions to hand-held terminal so that handheld terminal can upgrade and store all AP information of storing in advance.
2. the step that the method for claim 1, wherein described handheld terminal connects AP comprises: the handheld terminal request connects AP; The information that this AP connects to this handheld terminal request authentication in response to connection request; This handheld terminal sends the information that authentication connects in response to information request to this AP; If with the information that sends by this handheld terminal and in this AP canned data coupling in advance, then the connection by this handheld terminal of authentication connects this AP.
3. method as claimed in claim 2 comprised also that before the step of handheld terminal request connection AP handheld terminal is carried out inquiry and AP execution inquiry scans to allow handheld terminal to search for the step of AP.
4. method as claimed in claim 2 wherein, is personal identification number (PIN) sign indicating number of AP oneself by AP to the information of the authentication connection of handheld terminal request.
5. the information of the AP that is the method for claim 1, wherein upgraded by handheld terminal and store is the information that wherein handheld terminal reception is connected to the authentication of AP.
6. method as claimed in claim 5, wherein, wherein the handheld terminal information that receives the authentication be connected to AP comprises: the address of AP and PIN code.
7. handoff support apparatus that uses the updated information of AP, it comprises: the handheld terminal of carrying out short haul connection; The a plurality of AP that connect described handheld terminal through short-range communication link; Private branch exchange (PBX) system that connects PSTN (PSTN); Connect described a plurality of AP and PBX system respectively to form the basic circuit of communication channel; Connect described a plurality of AP and PBX system respectively to form the forwarding circuit of communication channel when the described handheld terminal handover; With the management server that is connected described a plurality of AP by Local Area Network, it is used for when described handheld terminal connects described AP in the storage of the renewal of the information of the described a plurality of AP of described handheld terminal control and is used to control the handover that described a plurality of AP makes it possible to manage described handheld terminal.
8. a use is used for the handover support method of the information updating method of AP, and it comprises: handheld terminal is by being connected an AP at an AP by authentication; When described handheld terminal connects a described AP, then an AP gives management server the location information notification of described handheld terminal; A described AP is from described management server acquisition of connecting its own and local area network (LAN) all information by described management service management; With the AP information that sends all acquisitions to described handheld terminal so that this handheld terminal can upgrade and store all AP information of storing in advance; The communication channel of described AP formation and PBX system is so that described handheld terminal can be carried out telephony communication session through PSTN; Described management server is determined the handover of described handheld terminal, and handover described handheld terminal to the two AP of handover then if desired; And between described PBX system and the 2nd AP, form communication channel so that described handheld terminal can be carried out telephony communication session continuously through PSTN.
9. method as claimed in claim 8, wherein, the step that described handheld terminal connects an AP comprises: described handheld terminal request is connected to a described AP; The information that a described AP connects to described handheld terminal request authentication in response to connection request; Described handheld terminal sends the information that authentication connects in response to information request to a described AP; If with the information that sends by described handheld terminal and in a described AP canned data coupling in advance, the connection by the described handheld terminal of authentication connects a described AP.
10. method as claimed in claim 9 also comprised before described handheld terminal request connects a described AP, and described handheld terminal carries out inquiry and a described AP carries out inquiry scanning to allow described handheld terminal to search for the step of a described AP.
11. method as claimed in claim 9 wherein, is personal identification number (PIN) sign indicating number of a described AP oneself by a described AP to the information of the authentication connection of described handheld terminal request.
12. method as claimed in claim 9 wherein, is upgraded and the information of the AP of storage is the information that wherein said handheld terminal receives the authentication that is connected to AP by described handheld terminal.
13. method as claimed in claim 12, wherein, the information that wherein said handheld terminal receives the authentication that is connected to AP comprises: the address of AP and PIN code.
14. method as claimed in claim 8, wherein, the formation of communication channel is undertaken by basic circuit between a described AP and PBX system.
15. method as claimed in claim 8, wherein, the handover of determining described handheld terminal is by being made from the received signal strength indicator (RSSI) of the input of described handheld terminal reception by described first and second AP.
16. method as claimed in claim 8, wherein, described handover comprises: described management server is indicated this handover to described first and second AP; A described AP connects to described handheld terminal notice handover and cancellation; And if the cancellation between a described handheld terminal and a described AP connection then described the 2nd AP connects described handheld terminal.
17. method as claimed in claim 16 also comprises after the connection between a described handheld terminal of cancellation and a described AP, a described AP is to the step of connecting of cancellation of described management server notice and described handheld terminal.
18. method as claimed in claim 16, wherein, the step of call forwarding channel comprises: described the 2nd AP handle is notified to management server with being connected of described handheld terminal; Described management server is notified to a described AP to the connection between described the 2nd AP and the handheld terminal; A described AP is to the connection of described PBX system request to the communication channel of described the 2nd AP; Be connected communication channel to described the 2nd AP with described PBX system.
19. method as claimed in claim 18, wherein, the connection of communication channel is to be undertaken by the forwarding circuit between described PBX system and the 2nd AP.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050067559 | 2005-07-25 | ||
| KR10-2005-0067559 | 2005-07-25 | ||
| KR1020050067559A KR100680497B1 (en) | 2005-07-25 | 2005-07-25 | Method for connecting a terminal to access point in short-range communication system |
| KR1020050081612A KR100737591B1 (en) | 2005-09-02 | 2005-09-02 | Apparatus and method for supporting hand-off in short range wireless communication |
| KR10-2005-0081612 | 2005-09-02 | ||
| KR1020050081612 | 2005-09-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1933670A CN1933670A (en) | 2007-03-21 |
| CN1933670B true CN1933670B (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006101074277A Expired - Fee Related CN1933670B (en) | 2005-07-25 | 2006-07-24 | Information update method for access points, and handoff support apparatus and method using the same |
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| Country | Link |
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| KR (1) | KR100680497B1 (en) |
| CN (1) | CN1933670B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101510714B1 (en) * | 2008-10-27 | 2015-04-10 | 삼성전자주식회사 | Method for connecting to wireless lan access point and apparatus using the same |
| US8831568B2 (en) * | 2011-09-27 | 2014-09-09 | Qualcomm Incorporated | Automatic configuration of a wireless device |
| CN104954048B (en) * | 2014-03-28 | 2018-12-28 | 北京奇虎科技有限公司 | Bluetooth communication method and system |
| KR102248755B1 (en) * | 2014-05-27 | 2021-05-07 | 삼성전자주식회사 | Network system, access point and connecting method thereof |
| CN106688223B (en) * | 2014-11-28 | 2019-09-03 | 艾可慕株式会社 | Terminal installation, terminal profile system and terminal profile method |
| KR102382187B1 (en) | 2015-07-03 | 2022-04-05 | 주식회사 엘지유플러스 | Apparatus and Method for connecting to WiFi based on BLE beacon |
| CN105451250B (en) * | 2015-09-01 | 2017-07-11 | 电信科学技术研究院 | A kind of Network Access Point dynamic networking method and equipment |
| CN116527260B (en) * | 2023-07-03 | 2023-12-01 | 广东电网有限责任公司佛山供电局 | Access method, device, equipment and medium of power grid communication system |
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| CN1430860A (en) * | 2001-03-30 | 2003-07-16 | 三菱电机株式会社 | Personal digital assistant, wireless communication system and method of link establishment |
| CN1455603A (en) * | 2002-04-29 | 2003-11-12 | 曾少敏 | Blue-tooth wirelessmobile communication system |
| CN1574986A (en) * | 2003-05-29 | 2005-02-02 | 三星电子株式会社 | Complex wireless service arrangement using wired or wireless communication systems |
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| WO2002076953A1 (en) * | 2001-03-21 | 2002-10-03 | Warner-Lambert Company Llc | New spirotricyclic derivatives and their use as phosphodiesterase-7 inhibitors |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1430860A (en) * | 2001-03-30 | 2003-07-16 | 三菱电机株式会社 | Personal digital assistant, wireless communication system and method of link establishment |
| CN1455603A (en) * | 2002-04-29 | 2003-11-12 | 曾少敏 | Blue-tooth wirelessmobile communication system |
| CN1574986A (en) * | 2003-05-29 | 2005-02-02 | 三星电子株式会社 | Complex wireless service arrangement using wired or wireless communication systems |
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| Publication number | Publication date |
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| CN1933670A (en) | 2007-03-21 |
| KR100680497B1 (en) | 2007-02-08 |
| KR20070013166A (en) | 2007-01-30 |
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