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Data transfer path establishment system among mobile telephone terminals

A mobile phone, data transmission technology, applied in electrical components, wireless communication, wireless network protocols, etc., can solve the shadow, indoor, underground and other problems of buildings, and achieve the effect of effective utilization

Inactive Publication Date: 2013-06-12
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because radio waves travel in a straight line, so radio waves from the base station may not reach sufficiently in the shadow of buildings, indoors, underground, etc.

Method used

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  • Data transfer path establishment system among mobile telephone terminals
  • Data transfer path establishment system among mobile telephone terminals
  • Data transfer path establishment system among mobile telephone terminals

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0205] As a first example, an example corresponding to the first example in the first aspect will be described. Figure 14 shown in Figure 4 In the shown network configuration, the sequence in which the terminal UE-a is served by CABS1 and the terminal UE-b is served by CABS2.

[0206] which is, Figure 14 A case is shown in which direct communication between CABS1-CABS2 (establishment of a data transmission path) is possible via a call control server (CA Server) in the ISP network.

[0207] First, each of CABS1 and CABS2 registers a terminal that can use the CABS itself in the call control server (registration process). Through the registration process, the information used as the other party information is registered in the call control server. The information to be registered as the partner information includes the IP address of the CABS, identification information (such as telephone numbers) of terminals that can use the CABS, and other necessary information. The cont...

no. 2 Embodiment

[0253]As a second example, an example corresponding to the second example in the above-mentioned first aspect will be described.

[0254] Figure 16 and Figure 17 show Figure 6 The sequence shown is the case where the called terminal UE-b is under the service of BTS2 instead of CABS2. That is, it is a sequence in which direct communication between CABSs cannot be performed and there is a call control server.

[0255] exist Figure 16 In the order of , it is assumed that CABS1 / 2 and its subordinate UE-a / b pass through Figure 14 The registration process shown (S501-S504, S505) is pre-registered in the call control server (CA Server).

[0256] Terminal UE-a starts preprocessing (S506) in order to request the calling party, sends SETUP message (S507), SETUP message is converted into INVITE message (S508) at CABS1, is sent to call control server (S509), after being sent to The process before CABS2 (S512) is the same as Figure 14 same.

[0257] CABS2 sends the Paging Typ...

no. 3 Embodiment

[0283] As a third example, an example corresponding to the third example in the above-mentioned second aspect will be described. Figure 18 shown in Figure 8 In the shown network configuration, the sequence of cases where the call control server (CA Server) is not used.

[0284] when Figure 18 The sequence shown and the sequence of the first embodiment ( Figure 14 ) for comparison, the only difference with the sequence of the first embodiment is that SIP messages are directly exchanged between CABS1 and CABS2 (refer to Figure 18 ; S509A, S517A, S527A, S534A, S541A, S603A, S610A). Therefore, its detailed description is omitted.

[0285] However, in order to achieve Figure 18The procedure shown is structured as follows: In CABS1 and CABS2, different from the first embodiment, counterpart information such as the IP address of the counterpart and identification information (telephone number) of the terminal are registered in advance with each other. At this point, CABS1...

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Abstract

The invention provides a data transfer path establishment system among mobile telephone terminals. In a network system containing wireless base stations accessing a mobile telephone network through an IP network, the wireless base stations appoint a called terminal of a calling request when receiving the calling request from a calling terminal, and the called terminal attempts to establish a datacommunication path for enabling wireless base stations to be connected with different wireless base stations through the IP network rather than the mobile telephone network under the condition that the wireless base stations which are different from the base stations connected with the IP network can be utilized to receive the calling request, and is used for transferring communication data between the calling terminal and the called terminal.

Description

[0001] The patent application of the present invention is the invention name "Data transmission path establishment system between mobile phone terminals", the application date is October 20, 2004, the international application number is "PCT / JP2004 / 015496", and the national application number is "200480044273.0" The divisional application of the invention patent application. technical field [0002] The present invention relates to a communication method using a small base station accommodated in a mobile phone network via an IP (Internet Protocol) network. Background technique [0003] In the mobile phone network, such as the third generation mobile phone network (Third Generation mobile phone network), there are areas that are difficult to reach even though they are within the service area (radio wave from the base station) on the map ( called the "quiet zone"). This is because radio waves basically propagate in a straight line, so radio waves from the base station may no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W80/04H04W88/08H04W92/12
Inventor 桥本正则手塚康夫矢场明男本桥佳代
Owner FUJITSU LTD