WO2005051031A1 - 無線通信システム - Google Patents
無線通信システム Download PDFInfo
- Publication number
- WO2005051031A1 WO2005051031A1 PCT/JP2003/014727 JP0314727W WO2005051031A1 WO 2005051031 A1 WO2005051031 A1 WO 2005051031A1 JP 0314727 W JP0314727 W JP 0314727W WO 2005051031 A1 WO2005051031 A1 WO 2005051031A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wireless communication
- access network
- network
- processing unit
- wireless
- Prior art date
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- 238000004891 communication Methods 0.000 title claims abstract description 189
- 230000011664 signaling Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 23
- 230000005856 abnormality Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006870 function Effects 0.000 description 48
- 238000012544 monitoring process Methods 0.000 description 12
- 230000004044 response Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000027455 binding Effects 0.000 description 2
- 238000009739 binding Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
- H04L12/5692—Selection among different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0007—Control or signalling for completing the hand-off for multicast or broadcast services, e.g. MBMS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
- H04W36/362—Conditional handover
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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
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/14—Backbone network devices
Definitions
- the present invention relates to a technology for enabling continuous switching between different wireless communication networks when performing data communication using two or more types of wireless communication networks.
- it relates to a method for simultaneously establishing a control network for communication switching control and another network for realization.
- wireless communication networks that are already in practical use today, such as self-service systems such as wireless LAN and Bluetooth, and public network systems such as mobile phones and PHS, are currently functioning independently. Depending on the communication speed and other factors, the user can use them properly.
- wireless communication networks have various communication speeds, service providers, communication costs, etc., depending on the type of wireless communication network.Therefore, instead of always using a specific network, switch appropriately according to the place where the network is connected. is necessary.
- each system is treated in an integrated manner, and the appropriate network is selected and switched without user awareness, depending on the coverage of each service area, the communication bandwidth required by the user, etc.
- a technique it is considered to separate a network that performs communication related to control such as network switching from a network that performs data communication.
- data communication is performed even in a wireless communication system that does not originally have a calling function using a wide area wireless communication system.
- a method for establishing voice data communication for example, a wide-area wireless communication system having a calling function such as a beijer line is used as a dedicated calling line, and a wireless LAN is used as a wireless communication system, for example, and the respective characteristics are used in combination. It is proposed to do so.
- the present invention has been created in view of such a background, and realizes continuous communication switching using a wireless communication network for control and another data communication network.
- the control network is configured so that the optimum network can be selected, and a highly flexible network connection environment is realized. That is, the invention described in claim 1 has at least two types of wireless communication.
- a wireless communication system capable of simultaneously establishing a connection between a basic access network capable of performing signaling communication related to continuous communication switching control and a wireless access network performing data communication other than the signaling communication using a network.
- the wireless communication system includes a wireless communication terminal and a wireless communication server.
- the wireless communication terminal includes a seamless application processing unit that performs a connection process with the basic access network and a connection / disconnection process with the wireless access network, and a basic access network client process that has a client function in sidanering communication.
- a multicast communication node application processing unit for setting multicast reception using at least two or more types of wireless communication networks; and network devices corresponding to the wireless communication networks.
- a wireless communication server must have at least two types of wireless communication networks.
- a basic access network server processing unit that manages signaling communication for communicating the status and registration / update processing of each wireless communication terminal; a terminal status table that manages the status of each wireless communication terminal; A terminal configuration table that manages the wireless communication network in which the communication terminals are mounted, and a preference setting table that manages the order of wireless communication networks that are candidates for switching when wireless communication networks are continuously switched. Be prepared.
- the wireless communication server In the wireless communication system described in claim 2, the wireless communication server
- a home agent server including the home agent application processing unit; the basic access network server processing unit; a resource server including the terminal status table; the terminal configuration table; and the preference setting table. Consists of two servers. Then, a wireless communication system is provided in which the basic access network server acquires or registers information in each table of the resource server via a wired or wireless communication network.
- the invention described in claim 3 is characterized in that the seamless application processing unit of the wireless communication terminal records a candidate wireless communication network to be used as the basic access network in advance during a connection process with the basic access network. It is characterized in that network connection is attempted with reference to the work candidate information, and when network connection is not possible, processing is performed so as to sequentially attempt network connection with the next candidate.
- the invention according to claim 4 is characterized in that, in the wireless communication system, when a network device of the wireless communication terminal detects a communication abnormality of the wireless access network, the wireless access network and the basic access network are not the same, and Under the condition that the basic access network is connected, the seamless application processing unit performs communication switching by notifying the multicast communication node application processing unit of communication switching to the basic access network. And a wireless communication network in which candidate wireless communication networks to be used as wireless access networks are recorded in advance. --
- a network connection with the next candidate wireless access network is attempted, and when a network connection is not possible, processing is sequentially performed to try a network connection with the next candidate.
- the invention according to claim 5 is the wireless communication terminal, wherein when the user issues a switching instruction of the wireless access network or the basic access network, the seamless application processing unit transmits the basic access network to the multicast communication node application processing unit. After performing the communication switching by notifying the communication switching to the wireless access network or the basic access network, a process of changing the network connection from the current wireless access network or the basic access network to the instructed wireless access network or the basic access network is performed. And
- the invention according to claim 6 is characterized in that the terminal status table is at least information relating to the identification code of the wireless communication terminal, the basic access network in use, the wireless access network in use, and the multicast communication state.
- FIG. 1 is an overall configuration diagram of a wireless communication system according to the present invention.
- FIG. 2 is a configuration diagram illustrating a wireless communication terminal in detail.
- FIG. 3 is a sequence of the M-cast reception setting.
- Fig. 4 shows a sequence for canceling M-cast reception at the end of multicasting.
- Fig. 5 shows the sequence of the RAN connection.
- FIG. 6 shows a sequence in which the RAN is continuously switched to the next candidate RAN.
- FIG. 7 shows a sequence in response to a RAN switching instruction from a user.
- FIG. 8 shows a sequence in which a usable RAN candidate is detected by the RAS client processing unit.
- Fig. 9 shows a switching sequence when it is possible to return to a high priority RAN.
- Fig. 10 shows a RAN switching sequence (from out-of-service warning to core area) according to an instruction from the BAS client processing unit.
- Fig. 11 shows the RAN switching sequence (from out-of-service warning to out-of-service) in accordance with an instruction from the BAS client processing unit.
- FIG. 12 shows the sequence of the service registration function.
- FIG. 13 shows the sequence of the terminal registration function.
- FIG. 14 shows the sequence of the registration status monitoring function.
- FIG. 15 shows the sequence of the terminal position monitoring function.
- FIG. 16 shows the sequence of the terminal RAN candidate generation function.
- 10 Wireless communication terminal
- 11 Seamless application processing unit
- 12 BAS client processing unit
- 13 Mobile IP mobile node processing unit
- 20 Home agent server
- 21 Mobile IP home agent Processing unit
- 22 BAS server
- 30 Resource server Preferred mode for carrying out the invention
- FIG. 1 is an overall configuration diagram of a wireless communication system according to the present invention.
- This system consists of a wireless communication terminal (10) that can be carried by a user, a home agent server (20) and a resource server (30) connected via a wireless communication network.
- the home agent server (20) and the resource server (30) are connected by a wired or wireless communication network.
- both servers are connected by a wired or wireless communication network.
- (20) (30) may be integrally configured to form one wireless communication server.
- the wireless communication terminal (10) realizes mobility as a Mobile IPv4 mobile node, and performs continuous switching of the wireless communication network by automatic control.
- FIG. 2 is a configuration diagram for explaining the wireless communication terminal (10) in detail.
- the terminal (10) uses, for example, a known personal computer or a PDA (Personal Digital Assistant), and includes a seamless application processing unit (11) shown in the figure and a basic access network client processing unit (hereinafter referred to as a BAS client processing unit). ) (12) Multicast communication node application processing unit --obilelP A mobile node application processing unit (13) and a network device (14) corresponding to a wireless communication network are provided.
- the seamless setting file (15) used by the seamless application processing unit (11) and the BAS setting file (16) used by the BAS client processing unit (12) are stored in the memory or external storage device of the terminal (10). Stored.
- the MobilelP mobile node application processing unit (13) of the present invention supports the Simultaneous bindings of MobilelP. After performing registration with Simultaneous bindings, receive the same packet sent from the home agent server (20) and discard one.
- the MobilelP mobile node application processing unit (13) provides a function to set and cancel multicast (M-cast) reception.
- Fig. 3 shows the sequence of M-cast reception setting.
- setting is performed in response to an M-cast reception setting instruction from a seamless application processing unit (11) described later, and a MobilelP home agent processing unit (home agent application processing unit of the home agent server (20)) is set.
- This processing unit (11) connects to the basic access network (BAN) at startup.
- BAN basic access network
- the BAS client (12) and the BAS server (2 2) communicate using the BAS (Basic Access Signaling) protocol, and in this embodiment, the SOAP (Simple Object Access Protocol) is adopted. I have.
- RAN wireless access network
- the RAN and the BAN are separately connected from the wireless communication network in this way, but it is possible to freely switch which of the wireless communication networks is used as the BAN.RAN.
- the communication status of a device being used as a RAN is periodically monitored, and the communication device can be automatically and continuously switched when a communication error is detected. Also, device switching can be performed manually by the user's selection. When the RAN communication is completed, the RAN is automatically disconnected and the device is turned off.
- the seamless application processing unit (11) includes a communication device scan function for determining whether the connected network device (14) can be connected or not, a communication device connection function for automatically connecting after the power of the device is turned on, It has a communication device monitoring function that detects a link down in a device, and a communication device disconnection function that turns off the power after automatically disconnecting the device.
- the RAN connection function for setting the RAN after booting up the RAN and BAN. Switching to the next candidate RAN when the link down is detected or when a switching instruction is issued from the user or from the BAS client processing unit (12).
- the communication device scanning function includes a process of acquiring the radio wave intensity at a predetermined cycle from the network device (14) by the seamless application processing unit (11), and the cycle is acquired from the seamless setting file (15).
- the method of acquiring the radio wave intensity depends on each device, and a method disclosed by a hardware maker or the like can be used.
- the connection is possible if the value is equal to or higher than the threshold, and the connection is not possible if the value is less than or equal to the threshold.
- the communication device connection function is a function to turn on the power when each device is used.
- a dial-up device such as a mobile phone or a PHS modem
- a dial-up connection is performed after the power is turned on.
- a wireless LAN etc.
- the dial-up setting file for each provider is stored in advance in a seamless setting file (15).
- the user also sets and stores in advance the IP assignment (including DHCP) for each network, the ESSID to the wireless LAN access point, and the password.
- the communication device monitoring function periodically monitors the link status of the device being used for communication based on the settings in the seamless setting file (15). That is, the communication status is acquired from the device driver of the network device (14), and if there is an error, the RAN is switched.
- a link down is detected when the signal strength is equal to or less than the threshold value according to the signal strength, and the link down is detected by other known methods.
- the communication device disconnection function disables unused devices and turns off the power of the network device (14). In the case of dial-up connection, dial disconnection is performed.
- Fig. 5 shows the RAN connection sequence.
- start ⁇ obtain a candidate RAN from the seamless setup file (15) and connect the wireless communication network as the RAN. Attempt to connect with the next candidate RAN until the RAN is connected.
- a list of RAN switching candidates is obtained, and connection and network setting of the candidate RAN are performed.
- Request and register Mobile IP update from Mobile IP mobile node (1 3).
- the information connected as the RAN is stored in the seamless application processing unit (11) as the current RAN.
- the mobile node (11) sends a registration request to the MobilelP home agent processing unit (21) of the home agent server (20) using the Dynamics function. --If there is no RAN candidate in the seamless setting file (15), RAN connection is made again after suspending for a certain period.
- the present invention is characterized in that a plurality of radio access networks RAN are switched at any time according to a user's instruction or a network state.
- FIG. 6 shows a sequence in which the RAN is continuously switched to the next candidate RAN when a communication abnormality of the RAN is detected.
- the mobile node (13) When making a Mobile IP update request, the mobile node (13) makes a registration request to the MobilelP home agent processing unit (21) by the Dynamics function. This temporarily switches the connection to BAN.
- the BAN can be used as it is, so that only the current RAN disconnection process needs to be performed.
- FIG. 7 is a sequence in a RAN switching instruction from a user.
- the user requests the seamless application processing unit (11) to obtain a list of RAN candidates that can be selected, and the seamless application processing unit (11) obtains a RAN candidate list from the seamless setting file (15). This is returned to the user, and the user selects RAN and issues a switching instruction.
- the BAN connection is established and the BAN and the RAN are different, it is added to the current RAN and connected to the BAN by multicast. Request and add BAN connection. In other cases, no update is performed.
- the mobile node (13) makes a registration request to the MobilelP home agent processing unit (21) using the Dynamics function. As a result, even if the RAN links down in the middle, the BAN connection is maintained.
- the seamless application processing unit (11) performs the following processing according to the current RAN, user-specified RAN, and BAN.
- a user selects a RAN, not only can it be detected from all devices, but the available RAN can be detected by the BAS client processing unit (12) as a candidate for switching.
- the processing unit (12) searches for an available wireless communication network and performs seamless application. Notify the processing unit (11).
- the seamless application processing unit (11) updates the switching candidate of the seamless setting file (15) so that only available networks are candidates.
- the subsequent steps are the same as those described above.
- the present invention includes a sequence for monitoring whether switching to a high-priority RAN is possible and for returning to the RAN when possible.
- Figure 9 shows this.
- the seamless application processing unit (11) connects the communication device to the machine. --Scans according to the function, and as a result, detects that it is possible to connect to a RAN with a higher priority than the current RAN (higher candidate rank) than the RAN.
- the mobile node (13) When requesting a Mobile IP update, the mobile node (13) makes a registration request to the MobilelP home agent processing unit (21) using the Dynamics function. This temporarily switches the connection to BAN.
- the seamless application processing unit (11) performs switching processing to the high-priority RAN by the same processing as in the case of the instruction from the user.
- a basic access network server processing unit (hereinafter referred to as a BAS server) provided in the HA server (20) (22) and a BAS client processing unit (22) connected through the basic access network.
- a configuration to switch RAN according to the instruction from 12) is also provided.
- the mobile node (13) makes a registration request to the MobilelP home agent processing unit (21) using the Dynamics function. This adds a BAN connection.
- the AN can be switched in the same way as the RAN described above. However, when the seamless application processing unit (11) is started, first, BAN switching candidate information is obtained from the seamless setting file (15), and the network is switched so that it can be used as the BAN. Make settings. If connection cannot be made as a BAN, the next BAN switching candidate is obtained again and network settings are made.
- the processing unit (12) includes a service registration function for performing a registration process with respect to the BAS server (22), a status notification function for performing a status notification to the BAS server (22) at set intervals, and a user notification function.
- the preference selection function which is an interface for switching the currently selected preference to another preference, sends a terminal discovery request to the BAS server (22) when the preference is set, and the RAN RAN candidate acquisition function to acquire candidates, switching instruction reception function to receive terminal movement notification from BAS server (22) and issue RAN switching instruction to seamless application processing unit (11) after updating RAN candidates Having.
- Figure 12 shows the sequence of the service registration function.
- the BAS client processing unit (12) starts the terminal BAS application
- the terminal ID and the period for notifying the setting status are set from the terminal BAS configuration file (16) (see Fig. 2). Get the preferences you have.
- it requests the seamless application processing unit (11) to acquire the mounted wireless network and obtains it.
- the seamless application processing unit (11) requests the seamless application processing unit (11) to obtain the current network status, and obtains the status of the BAN being used, its IP address, and the RAN and M-cast being used.
- Such information is periodically requested from the BAS client processing unit (12) to the seamless application processing unit (11) and the GPS receiver (17) in accordance with the status notification cycle to request status acquisition and location information acquisition.
- Information on AS server (22) --Update This is the status notification function.
- the wireless communication terminal moves and automatically switches the RAN
- which wireless communication network is to be given priority for switching is stored in the BAS setting file (16) as a preference.
- Selectable preferences include the lowest-cost wireless network-preferred price preferences, higher-bandwidth-priority bandwidth preferences, wider-area-priority range preferences, and better connectivity.
- a terminal discovery request (WRD: Wireless Resource Discovery) to the BAS server (22). This may happen when the user changes the preference or when the user requests to obtain available RAN information.
- the BAS client processing unit (12) acquires the selection preference from the BAS configuration file (16) and notifies the BAS server (22) through the basic access network.
- the BAS server (22) returns available RAN switching candidates prioritized to the terminal based on the notified preferences.
- the BAS client processing unit (12) notifies the obtained switching candidate to the seamless application processing unit (11).
- the seamless application processing unit (11) saves the switching candidates including this ordering in the seamless setting file (15). This information is used in the above-described network switching. 'If the BAS server (22) determines that the wireless communication network currently used as the RAN has entered the out-of-service warning area, it issues a wireless network switching instruction to the terminal. In other words, when a RAN switching request occurs in the server, the available network is notified by the BAS client processing by the terminal movement notification. --The control unit (12) notifies the seamless application processing unit (11).
- the seamless application processing unit (11) follows this and the seamless setting file
- the configuration of the wireless communication terminal according to the present invention is as described above. Next, the configuration of the wireless communication server will be described.
- the wireless communication server is composed of a home agent server (20) and a resource server (30).
- the home agent server (20) is composed of a Mobile IP home agent processing unit (21) and a BAS server (22). ) Stores various information such as a terminal status table.
- the destination IP address and source IP address are used as parameters. Thereafter, the same packet is transmitted to different destination addresses.
- the BAS server (22) sends the terminal status table (31) of the resource server (30) from the BAS server (22) according to the registration request from the BAS client processing unit (12). , Wireless communication terminal ID, selection preference, status notification cycle, BAN IP address, BAN in use, RAN in use, M-cast status, latitude / longitude, update date and time, etc. are registered.
- the ID of the notified wireless communication terminal and the wireless network in which the ID is mounted are registered.
- Such an update request is further monitored by the monitoring function (22a). If the request is not received at intervals based on the cycle, it is determined that the terminal cannot provide service, and the service registration is canceled. It has a registration status monitoring function for performing Fig. 14 shows the sequence of this function.
- the processing unit of the function obtains the update request non-reception count from the terminal status table (31), and then obtains the update date and time periodically. If the update date and time have not been received at the set period from the update date and time, Then, it is counted as the number of unreceived times.
- the wireless communication terminal is determined to be in the service unavailable state, and the information of the terminal is deleted from the terminal status table (31) and the terminal configuration table (32). I do. By deleting this, according to the configuration of the present invention, it is also excluded from the switching candidates in the seamless application processing unit (11).
- the BAS server (22) also has a terminal position status monitoring function. This function monitors the position of the wireless communication terminal whose service is being registered at a set interval, and notifies the terminal of a switching instruction when the terminal is in the out-of-service warning area of the currently used RAN area. .
- Fig. 15 shows the sequence of this function.
- the position information and the used RAN of the wireless communication terminal are obtained from the terminal status table (31), and the monitoring function (22a) is performed when the position information at the previous monitoring and the current position information are different in the processing unit.
- the GIS engine department (33) which controls each core area and out-of-service warning areas.
- Fig. 16 shows that the RAN --This is a sequence to set a wireless communication network that can be used at the current location as a switching candidate in the case of disconnection.
- the selected preference is reflected in the terminal status table (31).
- the terminal status table (31) obtains the location information of the terminal from the terminal status table (31) and the mounted wireless network from the terminal configuration table (32).
- the preference setting table (34) all the wireless communication networks ranked by the selected preference are acquired. Based on these combinations, the implemented wireless communication networks are ranked, and the GIS engine unit (33) is inquired from the one with the highest priority as to whether it can be used at the current location.
- the available RAN candidates are created in order and returned as a response from the BAS server (22) to the BAS client processing unit (12).
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003284417A AU2003284417A1 (en) | 2003-11-19 | 2003-11-19 | Radio communication system |
KR1020067011802A KR100983965B1 (ko) | 2003-11-19 | 2003-11-19 | 무선통신시스템 |
JP2005510754A JP4348438B2 (ja) | 2003-11-19 | 2003-11-19 | 無線通信システム |
PCT/JP2003/014727 WO2005051031A1 (ja) | 2003-11-19 | 2003-11-19 | 無線通信システム |
DE60335748T DE60335748D1 (de) | 2003-11-19 | 2003-11-19 | Funkkommunikationssystem |
EP03775841A EP1696685B1 (en) | 2003-11-19 | 2003-11-19 | Radio communication system |
US10/579,732 US8055255B2 (en) | 2003-11-19 | 2003-11-19 | Wireless communications system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2003/014727 WO2005051031A1 (ja) | 2003-11-19 | 2003-11-19 | 無線通信システム |
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WO2005051031A1 true WO2005051031A1 (ja) | 2005-06-02 |
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PCT/JP2003/014727 WO2005051031A1 (ja) | 2003-11-19 | 2003-11-19 | 無線通信システム |
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US (1) | US8055255B2 (ja) |
EP (1) | EP1696685B1 (ja) |
JP (1) | JP4348438B2 (ja) |
KR (1) | KR100983965B1 (ja) |
AU (1) | AU2003284417A1 (ja) |
DE (1) | DE60335748D1 (ja) |
WO (1) | WO2005051031A1 (ja) |
Cited By (1)
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US9130965B2 (en) | 2007-11-20 | 2015-09-08 | Alcatel Lucent | Method of call conferencing to support session continuity for multi-mode clients |
US20110060816A1 (en) * | 2009-04-17 | 2011-03-10 | Prem Jothipragasam Kumar | Parameter management in a personal distributed network |
CN102346460B (zh) * | 2011-05-27 | 2013-11-13 | 运软网络科技(上海)有限公司 | 一种基于事务的服务控制系统及其控制方法 |
US9173185B1 (en) * | 2012-04-10 | 2015-10-27 | Sprint Spectrum L.P. | Methods and systems for managing registration signaling based on off-time duration |
CA2889175C (en) * | 2012-10-26 | 2021-02-23 | Sirius Xm Radio Inc. | Systems and methods for cost effective distribution of files to user devices using combination of broadcast and two-way communication paths |
US8825814B1 (en) * | 2013-05-23 | 2014-09-02 | Vonage Network Llc | Method and apparatus for minimizing application delay by pushing application notifications |
US9907024B2 (en) * | 2015-09-23 | 2018-02-27 | Htc Corporation | Wireless communication device and control method thereof |
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- 2003-11-19 DE DE60335748T patent/DE60335748D1/de not_active Expired - Lifetime
- 2003-11-19 EP EP03775841A patent/EP1696685B1/en not_active Expired - Fee Related
- 2003-11-19 WO PCT/JP2003/014727 patent/WO2005051031A1/ja active Application Filing
- 2003-11-19 KR KR1020067011802A patent/KR100983965B1/ko not_active IP Right Cessation
- 2003-11-19 JP JP2005510754A patent/JP4348438B2/ja not_active Expired - Lifetime
- 2003-11-19 AU AU2003284417A patent/AU2003284417A1/en not_active Abandoned
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JP2010512128A (ja) * | 2006-12-05 | 2010-04-15 | クゥアルコム・インコーポレイテッド | 無線ローカルエリアネットワーク(WLAN)間の移動度(mobility)をサポートする方法およびシステム及び無線広域ネットワーク(WWAN)ドメイン |
Also Published As
Publication number | Publication date |
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JPWO2005051031A1 (ja) | 2007-06-14 |
DE60335748D1 (de) | 2011-02-24 |
EP1696685A1 (en) | 2006-08-30 |
US8055255B2 (en) | 2011-11-08 |
EP1696685A4 (en) | 2009-05-13 |
EP1696685B1 (en) | 2011-01-12 |
KR20060124636A (ko) | 2006-12-05 |
AU2003284417A1 (en) | 2005-06-08 |
KR100983965B1 (ko) | 2010-09-27 |
US20080019294A1 (en) | 2008-01-24 |
JP4348438B2 (ja) | 2009-10-21 |
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