TW200425759A - Network structure for island wireless communication system - Google Patents

Abstract

The present invention relates to a network structure for island wireless communication system, which is to assign a part of base transceiver stations connected to the original base station controller as the island base transceiver stations, and to connect it to the island base station controller. When the mobile phone enters into or exits from the island micro-cell area, it can proceed the procedure of position updating. Thus, the island wireless communication system can only read the island visitor location register corresponding to the island base station controller to obtain the mobile subscriber dialing number of all mobile phones in the current island micro-cell area to proceed the short message transmission service.

Description

200425759 发明 Description of the invention (The description of the invention should state: the technical field to which the invention belongs, prior art, internal technology, embodiments, and a brief description of the drawings) 1. The technical field to which the invention belongs The present invention relates to the technical field of wireless communications, especially Refers to the network structure of an island-type wireless communication system. 2. Prior Technology In recent years, owing to the rapid progress of wireless communication technology, wireless communication equipment has been widely used by consumers, especially mobile phones. The communication technology of mobile phones can be divided into several types.

System for Mobile communication (GSM) system is taken as an example. The communication multiple access technology adopts the technology of Timie Division Multiple Access (TDMA), and the multiplexing technology adopts Frequency Division Duplexing (FDD). ) Technology. In the GSM system, in order to save the power of the mobile phone, after the mobile phone completes the Location update procedure with the GSM system, if the mobile phone has no call requirements, except for the paging of the GSM system, for example, , And call every 30 minutes, the mobile phone will not confirm the location with the GSM system. Because the GSM system only records to the area (LA, Aaa) where the mobile phone is currently located, however, a single area may contain more than 100 transceiver base stations. If the GSM system wants to perform a Short Message Service (SMS) on all mobile phones in a certain micro-cell area at this time, the Gsm system needs to use all transceiver base stations before performing the short message transmission service = for all mobile phones Calling (paging) procedure to determine ^ a micro-cell area where a mobile phone is located, and obtain the mobile subscriber dialing numbers of all mobile phones in a part of the micro-cell area 200425759 (M0bile based on this ISDN, MSISDN), GSM System, system and then according to the mobile user dials the number to perform mobile phone messaging services in some micro-cell areas. This will lead to a large increase in the workload of the GSM system and consume the resources of the GSM system. It can be seen from the above that the network structure of the conventional GSM system is indeed necessary for improvement. 3. Summary of the Invention The main purpose of the present invention is to provide a network structure of an island-type wireless communication system, which can clearly know the mobile user dial numbers of all mobile phones in the island micro-cell area, so as to facilitate the short message transmission service. Another object of the present invention is to provide a network structure of an island type wireless communication system, which can clearly know the mobile user dial numbers of all mobile phones in the island micro cell area without increasing the load of the wireless communication system. To achieve the above object, the present invention discloses a network structure of an island-type wireless communication system, including: a plurality of transceiver base stations, each corresponding to a micro-cell area, and providing at least one wireless mobile device disposed in the micro-cell area. One wireless communication service; at least one base station controller is connected to a plurality of transceiver base stations and controls its operation; at least one visitor position recorder is connected to at least one base station controller and records at least one base station controller The mobile subscriber dialing number of each wireless mobile device in each micro cell area corresponding to the plurality of connected transceiver base stations; at least one island base station controller connected to at least one plurality of base transceiver stations; and at least one island visitor location record Device, which is connected to at least one lone 200425759 $ base station controller, and records each wireless mobile device in each micro-cell area corresponding to at least one island base station controller connected to, received, and transmitted. Mobile user dialing number, in which the island-type wireless communication system reads at least one island visit The position of the recorder recorded the at least one mobile user to the dialed number into the at least one wireless mobile device: D special wireless communication services. In particular, the special wireless communication service may be a simple transmission service or a multimedia message transmission service. In the present invention, the transceiver base station corresponding to the micro cell area is connected to the base station controller, and the island transceiver base station corresponding to the island micro cell area is connected to the island base station controller. The wireless communication system only needs to read the link More than one mobile user dialing number recorded by the island visitor location recorder of the island base station controller can provide special wireless communication services to more than one mobile device in the island microcell area. In addition, the operation of the isolated island transceiver base station and the isolated island base station controller are the same as those of the received and received base station and the base station controller, respectively, and do not consume the resources of the wireless communication system, so the purpose of the present invention can be achieved. 4. Implementation As shown in FIG. 1 and FIG. 2, the mobile phone 20 is used for transmitting and receiving voice data to the gSM system. Among them, the mobile phone 20 is also referred to as a mobile station (MS 'Mobile Station). 2 Store the dialed number of the mobile user, which is generally called the mobile phone number. When the mobile phone 20 wants to receive an incoming call or dial a number, the GSM system judges from the home location recorder 72, which area the mobile phone 20 is placed in (for example, the first area LA1 controlled by the base station controller 60). Then, it is protected by the base station 3ei 8 controller and one of the receiving and sending base stations (e.g., 'receiving and receiving base station 30'), and the telephone 20 transmits and receives voice data. Among them, the GSM system includes the following equipment: Base X Base Transceiver Station (BTS), which is a device that transmits and receives voice data to and from Q & L 20, and traverses the H domain to the base transceiver station. The area (range) of the service is called a micro-example-(Cel1), and a plurality of micro-cell areas make up an area. And 3rd to area LA1 includes receiving and transmitting base stations 30, 31, 32, 33, 34 41, and the area served by the second area LA2 includes receiving and transmitting base stations 40, receiving and transmitting areas & 43, 44 and 45 served areas, and The three areas LA3 include the areas served by Tudou 50, 51, 52, and 53. The 0 controller (Base Station Controller, BSC) is used to control the operation of all the receiving and transmitting base stations in a region of 乂 Λ 地, so that the transmitting and receiving ^ σ and the mobile phone 20 for voice data transmission and reception, and It is connected to the mobile information exchange center 80 for transmitting and receiving voice data. A region code (Location Area entify ′ lai) is set for each area of Φ, >, and the parent area is used to identify the area. When the mobile phone 20 is placed in one of the areas, the area code corresponding to that area is stored. For example, the 'base station controller 60' is used to control the operation of each transmitting and receiving base station in the first area LA1, and the mobile phone 20 in the first area LA 丨 stores the area code corresponding to the first area LA1; the base station The controller 62 is used to control the operation of each transceiver base station in the second area LA2, and the mobile phone 20 in the second area LA2 stores an area code corresponding to the second area LA2, and the base station controller 64 is used to control the first Each transceiving base in the third area LA3 operates 200425759 units, and the mobile phone 20 in the third area LA3 stores the area code corresponding to the third area LA3. The Visitor Location Register (VLR, Visitor Location Register) is used to record the mobile user dialing numbers of all mobile phones 20 in an area, and provides the corresponding base station controller to query the mobile user dialing numbers. For example, when the mobile phone 20 enters the range of the first area LA1, the visitor location recorder 61 records the mobile user dialing number of the mobile phone 20; when the mobile phone 20 leaves the range of the first area LA1, the visitor location recorder 61 is Remove the mobile user dial number from mobile phone 20. In this way, the base station controller 60 only needs to query the record data of the visitor position recorder 61 to know whether the mobile phone 20 is within the range of the first area LA1. In addition, the visitor location recorder 63 records the mobile subscriber dialing numbers of all mobile phones 20 in the second area LA2, and provides the base station controller 62 for querying the mobile subscriber dialing numbers; the visitor location recorder 65 records all mobile phones in the third area LA3. The mobile subscriber dial number of 20 is provided, and the base station controller 64 is provided to query the mobile subscriber dial number. The equipment identification recorder 70 (EIR, Equipment Identity Register), each mobile phone 20 has a unique equipment number (IMEI, International Mobile Equipment Identity) ′, and when the mobile phone 20 is manufactured, it is set by the manufacturer. When the user connects to the GSM system for the first time, the GSM system records the device number of the mobile phone 20 in the device identification recorder 70 to determine the current usage status of the mobile phone 20. Among them, the device identification recorder divides the mobile phone 20 into three levels according to the use status of the mobile phone 20, the white list (White List), the normal use of the mobile phone 20, and the gray list 10 200425759 (Grey List), which is listed as Observed mobile phones 20; BlackList: Mobile phones 20 that have been stolen or mobile phones 20 that are out of service. The home location register 72 (HLR, Home Location Register) is used to store static basic data, such as telecommunications special services, special routing messages, and designated forwarding numbers that users apply for. The home location register 72 also records visitors Relevant information of the location recorder 61, the visitor location recorder 63, and the visitor location recorder 65, and the stored mobile subscriber dialing numbers, respectively. For example, when the mobile phone 20 moves from the micro-cell area served by the transceiver base station 30 to the micro-cell area served by the transceiver base station 40, this means that the mobile phone 20 has moved from the first area LA1 to the second area LA2, so the base station controller 60 removes the mobile user dial number of the mobile phone 20 recorded by the visitor location recorder 61; the base station controller 62 adds the mobile user dial number of the mobile phone 20 to the visitor location record Device 63, the home location recorder 72 updates the information of the mobile user dialing number of the mobile phone 20 from the corresponding to the visitor location recorder 61 to the corresponding to the visitor location recorder 63. The mobile subscriber dialing number stored in the home location recorder 72 can be read by Mobile > Λ Parent Exchange Center 80 or Base Station Controller 60, so that the system can obtain the area where mobile phone 20 is currently located. For example, the base station controller 60 queries the visitor location recorder 61 for the birth code of the mobile user ^ of the mobile phone 20. If there is a response, it means that the mobile phone 20 is placed in the first zone jLA1; if there is no response, the request The mobile information exchange center 80 queries the home location $ recorder 72 for the mobile subscriber dialing number of the mobile phone 2G 'If the information of the home location recorder 72 is displayed, the 200425759 mobile subscriber dialing number corresponds to the visitor location recorder 63' This Indicates that the mobile phone 20 is currently located in the second area LA2. The Authentication Center 74 (AUC) is used to provide parameters required by the mobile phone 20 to perform the authentication process. When the mobile phone 20 is turned on, the mobile phone 20 uses the International Mobile Subscriber Identify (IMSI), mobile subscriber dialing number, and other data to perform an authentication procedure with the GSM system. The GSM system uses the mobile phone stored in the authentication center 74 20 related parameters to confirm the identity of the mobile phone 20, after the mobile phone 20 completes the identity confirmation, according to the established communication agreement, the mobile phone 20 is given a temporary mobile subscriber authorization code (Temporary Mobile Subscriber Identify (TMSI)) and the area Code, where the area code corresponds to the area where the mobile phone 20 is currently located. The above procedure is called Location Registration. The mobile phone 20 stores the temporary mobile user authorization code and area code. Later, before the mobile phone 20 and the GSM system transmit and receive voice data, the temporary mobile user authorization code and area code need to be authenticated to the GSM system. Only after the authentication process is completed, can the voice data be transmitted and received. It is assumed that the mobile phone 20 is moved from the micro cell area corresponding to the transmitting and receiving base station 30 to the micro cell area corresponding to the transmitting and receiving base station 35. Since the mobile phone 20 is located in the first area LA1, there is no need to update the position data of the mobile phone 20. However, when the mobile phone 20 is moved from the micro cell area served by the transceiver base station 35 to the micro cell area served by the transceiver base station 40, since the mobile phone 20 is moved from the first area LA1 to the second area

3QS 12 200425759 LA2, so the mobile phone 20 needs to update the location data to the GSM system with the temporary mobile user authorization code, mobile user dial number and area code. At this time, the GSM system removes the mobile subscriber dialing number of the mobile phone 20 from the visitor location recorder 61, adds it to the visitor location recorder 63, and assigns a new area code (corresponding to the second area LA2). It is known that the data recorded by the home location recorder 72 will also be updated. The process of updating this location data is called Location Updating. The mobile information exchange center gateway 76 (Gateway MSC, GMSC) is performed with the wired backbone 78. When connected, the mobile information exchange center 80 transmits the voice data of the mobile phone 20 to the wired backbone 78 and receives the wired voice data from the wire backbone 70 to transfer to the mobile phone 20. Wired backbone 78 refers to the wired network architecture, including Digital Integrated Services Network (ISDN), Public System Telephone Network (PSTN), and Public Land Mobile Network , PLMN, etc., then the GSM system can be connected to the wired telephone through the public switched telephone network, or connected to a remote mobile information exchange center through a digital integrated service network, or with other mobile communication networks through the mobile exchange network. The service provider's GSM system is linked. Mobile Switching Center (MSC) 80 is the main connection center of the GSM system. Many control procedures and authentication procedures are performed and confirmed by Mobile Information Switching Center 80. For example, when mobile phone 20 dials a group of numbers, assuming that visitor location recorder 61 does not have a record of this group of numbers, base station controller 60 requests action 13 200425759 information exchange center 80 to find this number, and mobile information exchange center 80 reads Take the data recorded by the home position recorder 72 for data comparison to determine the position of the group number. Therefore, the base station controller 60 may be connected to the base station controller 64 and transmit and receive voice data with another mobile phone, or may be connected to the wired backbone 78 and transmit and receive voice data with another wired phone. . In addition, the operations of the base station controllers 60 and 62 are controlled by the mobile information exchange center 80. It can be seen that a single mobile information exchange center can control more than one base station controller, that is, its control range can be more than one area. The mobile information exchange center 80 is connected to the mobile information exchange center gateway 76 to transmit and receive voice data to and from the wired backbone 78, which enables wired telephones to make calls to the mobile telephone 20, as well as mobile phones of other service providers' GSM systems. Make a call to mobile 20 and vice versa. Among the above, the architecture of the GSM system has been fully described. When the GSM system wants to establish transmission and reception of voice data with the mobile phone 20, the GSM system needs to first determine the area where the mobile phone 20 is located, and designate an appropriate base station for wireless connection with the mobile phone 20. However, the method by which the GSM system determines the micro-cell area where the mobile phone 20 is located and designates a wireless connection between the sending and receiving base station and the mobile phone 20 can be performed in the following three ways: First, each receiving and sending base station sends a calling signal And wait for the response of the mobile phone 20 to determine the micro-cell area where the mobile phone 20 is located, and designate the receiving and sending base station to wirelessly connect with the mobile phone 20, however, this will consume the resources of the GSM system and cause the GSM system performance to be low; Every time the mobile phone 20 reaches a micro-cell area, it will go to 200425759 to perform a location update procedure to enable the GSM system to update the mobile phone 20 mesh.

However, this will cause the mobile phone 20 and the GSM system to perform too many tasks, such as location updates, and increase the burden on the GSM system and the mobile phone 20. The first method is to use 笛 and 组合 to combine the second type and combine many receiving and sending base stations into one area. The procedure is to update the location when the phone 2 () moves to a different area. Among them, the calling procedure refers to the signal from all receiving and sending base stations in the same area. The current network architecture of the GSM system uses the third method. Since the mobile phone 20 enters the standby state after performing the location registration or location update procedure, GS] VL ^ can only know the area where the mobile phone 20 is located, and cannot determine the microcell area where it is located. If the GSM system wants to know where the mobile phone 20 is currently located, there are only two ways. The first is a periodic call. In order to determine that the mobile phone 20 is still online and its microcell area, the GSM system will call the mobile phone 20 periodically. The interval between the cycles depends on the actual demand, for example, 30 minutes. . The second method, the GSM system actively calls, this method generally occurs when the mobile phone 20 has an incoming call. Assume that the mobile phone 20 is currently located in the micro-cell area served by the transceiver base station 33. When the mobile phone 20 receives an incoming call, the GSM system only knows that the mobile phone 20 is located in the first area la 1. Therefore, the GSM system makes the base All transceiver base stations controlled by the station controller 60, including the transceiver base stations 30, 31, 32, 33, 34, and 35, at the same time, perform a call operation on the mobile phone 20, and wait for the mobile phone 20 to respond to the transceiver base station At this time, the mobile phone 20 responds to the transmitting and receiving base station 33, then the GSM system 10 determines that the mobile phone 20 is located in the micro-cell area corresponding to the receiving and transmitting base station 33, and uses the receiving and transmitting base station 200425759 33 and the mobile phone 20 Transmitting and receiving voice data. The third type is that the mobile phone 20 makes an active call. This method generally occurs when the mobile phone 20 dials. When the mobile phone 20 dials, the mobile phone 20 requests a wireless connection to the GSM system through the transceiver base station 33, and the GSM system transmits and receives voice data to the mobile phone 20 through the transceiver base station 33. Assume that department stores A, B, and C are set up in the micro-cell areas served by the transceiver base stations 33, 43, and 53, respectively. These three department stores are chain department stores, and they are preparing for the vicinity of department stores A, B, and C. All consumers are provided with a text messaging service ... All things are 50% discounts (all products are 50% discounts) to attract consumers to enter department stores A, B and C for consumption. However, the network architecture of the conventional GSM system cannot achieve this goal without increasing the system load. As shown in FIG. 3 and FIG. 4, the present invention designates the transmitting and receiving base stations 33, 43, and 53 as the island transmitting and receiving base stations 39, 49, and 59 respectively, and connects the island transmitting and receiving base stations 39, 49, and 59 to the island transmitting and receiving base stations. Controller 66 (Island BSC), and cut off the connection with base station controllers 60, 62, and 64, respectively, and assign island transceiver base stations 39, 49, and 59-an area code corresponding to the island area, as shown in Figure 3. It can be seen that the island transceiver base stations in the island area are not adjacent to each other. The island base station controller 66 is connected to the island visitor position recorder 67 (Island VLR). Therefore, the mobile phone 20 located in the micro cell area served by the receiving and transmitting base stations 30, 31, 32, 34, and 35 has an area code corresponding to the first area LA1; and is located in the receiving and receiving base stations 40, 41, 42, 44, and 45. The area code of the mobile phone 20 in the micro-cell area served corresponds to the second area 16 200425759 LA2; the area code of the mobile phone 20 in the micro-cell area served by the transceiver base stations 50, 51, and 52 corresponds to the area code The third area LA3; the mobile phone 20 located in the island micro-cell area served by the island transceiver base stations 39, 49, and 59, and their area codes correspond to the island area. The island base station controller 66 can be connected to and controlled by any mobile information exchange center, for example, the mobile information exchange center 90. Among them, the island base station controller 66 has the same functions as the base station controllers 60, 62, and 64, and the island visitor position recorder 67 has the same functions as the visitor position recorders 61, 63, and 65. When the mobile phone 20 enters the island area from the first area LA1, because the area code is different, the mobile phone 20 needs to perform a location update procedure to the GSM system, and records the dial number of the mobile user of the mobile phone 20 in the island visitor location recorder. 67, it is conceivable that the visitor location recorder 61 and the home location recorder 72 will also update the relevant information of the mobile user dial number of the mobile phone 20. In this way, the island visitor location recorder 67 records all the mobile subscriber dialing numbers of the mobile phones 20 located in the island microcell area served by the island transceiver base stations 39, 49, and 59. Assume that the above-mentioned department store wants to perform the above-mentioned short message transmission service, and the GSM system can sequentially perform the short message transmission service on the mobile subscriber dialing numbers recorded by the isolated visitor location recorder 67 to achieve the above purpose. As shown in FIG. 5, in addition to the short message transmission service, the GSM system can also perform a multimedia message service (Multimedia Message Service, MMS) on the mobile phone 20. The multimedia message transmission service includes pictures, animations and sounds, and even video clips . 17 200425759 In the present invention, some transceiver base stations are changed to island transceiver base stations, assembled into island regions, given island region codes, and the mobile user dial number of mobile phone 20 located in the island region is recorded in the island visitor location record. In the device 67, the GSM system reads the records of the island visitor location recorder 67 to know all the mobile subscribers' dial numbers in the island area for SMS transmission service. For the GSm system, there is no major change in the overall architecture, and the communication transmission protocol used by the GSM system does not need to be changed. The operation of the GSM system is the same as the conventional one. In addition, the gSm system does not need to make additional calls to the mobile phone 20, and only adds part of the location update procedure, so it does not consume a lot of resources of the GSM system. In this way, not only can the purpose of the present invention be achieved, but the conventional technology Also has significant progress. In addition, whether it is another modern wireless communication system, such as a code division multiple acquisition system (CDMA), or a future wireless communication system, such as a second generation wireless communication system, such as a wideband division code multiple acquisition system (Wideband- CDMA, W-CDMA), code division multiple acquisition system 2000 (CDMA 2000), Universal Mobile Telecommunications System (UMTS) are international mobile communication systems 2000 (International Mobile

Telecommunications ′ IMT 2000), its network structure is the same as the GSM system, except that it uses different wireless communication protocols to provide wireless connection service to the manual telephone 20, so the present invention can also be applied to other wireless communication systems. 18 200425759 The above embodiments are just examples for the convenience of description. The scope of the claims of the present invention shall be based on the scope of the patent application, rather than being limited to the above embodiments. V. Brief Description of Drawings Figure 1 is a schematic diagram of a conventional transceiver base station and a base station controller. Figure 2 is a schematic diagram of a conventional GSM system network architecture. FIG. 3 is a schematic diagram of an island transceiver base station and an island base station controller according to the present invention. FIG. 4 is a schematic diagram of a network architecture of an island-type GSM system according to the present invention. And Figure 5 is a schematic diagram of the multimedia messaging service and the SMS messaging service. VI. Description of Drawing Numbers 20 Mobile Phone Transceiver Base Station Transceiver Base Station Transceiver Base Station Island Transceiver Base Station Base Station Controller Island Base Station Controller Visitor Location Recorder Island Visitor Location Recorder 30, 31, 32, 33, 34, 35 40, 41, 42, 43, 44, 44, 50, 50, 52, 53 39, 49, 59 60, 62, 64 66 61, 63, 65 67 200425759 70 device identification recorder 72 home location recorder 74 certification center data Library 76 Mobile Information Exchange Center Gateway 78 Wired Backbone 80, 90 Mobile Information Exchange Center

20

Claims (1)

200425759 Scope of application and patent application 1. A network structure of an island-type wireless communication system, including: a plurality of transceiver base stations, each corresponding to a micro-cell area, and providing at least one wireless mobile device placed in the micro-cell area A wireless communication service; at least one base station controller connected to the plurality of transceiver base stations and controlling their operation; at least one visitor location recorder connected to the at least one base station controller and recorded the at least one base station The plurality of transceiver base stations connected to each of the plurality of transceiver base stations corresponding to each of the wireless mobile devices in each of the wireless cell devices, a mobile subscriber dialing number; at least one island base station controller is connected to at least one of the plurality of plurality of base stations; Transceiver base station; and at least one island visitor position recorder connected to the at least one island base station controller, and recording each of the plurality of transceiver base stations corresponding to the at least one island base station controller. The mobile subscriber dialing number of each of the wireless mobile devices in the micro cell area, wherein The island-type wireless communication system reads at least one mobile subscriber dialing number recorded by the at least one island visitor location recorder to perform a special wireless communication service on at least one wireless mobile device. 2. The network structure described in item 1 of the scope of patent application, wherein the special wireless communication service is a short message transmission service. 3. The network structure described in item 1 of the scope of patent application, wherein the short message transmission is a multimedia message transmission service. 21 200425759 4. The network structure described in item 1 of the scope of patent application, wherein when the at least-wireless device enters each of the microcell areas corresponding to the plurality of base transceiver stations connected to the at least one base station controller "The at least one visitor location recorder records the mobile user's dialing number of the at least-wireless mobile device; when the at least one wireless device enters the at least-island base station controller connected to the at least one island transceiver base X platform Within the at least one micro-cell area, the at least one island visitor location recorder records the mobile user dial number of the at least one wireless mobile device, and the at least one visitor location recorder removes the at least—the action of the wireless mobile device User dial number. 5. The network structure according to item 1 of the scope of patent application, wherein the at least one base station controller is given an area code, and when the at least one wireless device enters the at least one base station controller, the at least one Within the plurality of microcell areas corresponding to the transmitting and receiving base stations, the wireless mobile device records the area code; the at least one island base station controller gives an island area code, and when the at least one wireless device enters the at least one island base station to control The at least one wireless mobile device records the island area code and removes the area code in the at least one microcell area corresponding to the at least one island transceiver base station connected to the device. 6. The network structure according to item 1 of the scope of patent application, wherein the at least one base station controller and the at least one island base station controller are further connected to a mobile information exchange center. 7. The network structure as described in item 6 of the scope of the patent application, wherein the mobile information exchange center is further connected to a device identification recorder, a local register 22 200425759,-a certification center database, and-mobile information exchange heartbeat Road device. '8. The network structure described in item 1 of the scope of patent application, wherein the island-type wireless communication system is a GSM system. 9. The network structure as described in item 1 of the Shen Jing patent scope, wherein the island-type wireless communication system is a CDMA system. 10. The network structure described in item 丨 of the patent application scope, wherein the island-type wireless communication system is a third-generation wireless communication system '. 11 The network structure described in item 1 of the scope of patent application, wherein the island-type wireless communication system is a W_CDMA system. 12. The network structure described in item 1 of the scope of patent application, wherein the island-type wireless communication system is a CDMA 2000 system. 13 The network structure as described in item 1 of the scope of patent application, wherein the island-type wireless communication system is a UMTS system. 14. The network structure described in item 1 of the scope of patent application, wherein the island-type wireless communication system is an IMT 2000 system. 15. The network structure according to item 1 of the scope of patent application, wherein the wireless mobile device is a mobile phone.