• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method of accessing a mobile switching period and a mobile terminal and a base station using different standards. Conventionally, a base station provides a protocol conversion function for accessing a mobile terminal and a base station using a different standard and a mobile switching period. In this case, a protocol translation method based on similarity between protocols has been used. However, the protocol translation method has a problem that can be used only if the target protocol is similar. Therefore, in the present invention, the signaling method is determined by using the system information including the base network shape information, and when the protocol between the mobile station and the base station and the mobile switch is different, the signal message of the mobile switch is included as an information element in the signal message of the mobile station and the base station. A mobile terminal capable of connecting a mobile terminal and a mobile switch using a different protocol without modifying the protocol of the mobile switch by switching, and a connection method between the base station and the mobile switch are proposed.
    公开号:KR19990038697A
    申请号:KR1019970058525
    申请日:1997-11-06
    公开日:1999-06-05
    发明作者:임선배；문철이
    申请人:정선종；한국전자통신연구원；
    IPC主号:
    专利说明:

    Mobile terminal and access method between base station and mobile exchange
    The present invention relates to a method of accessing a mobile terminal and a base station and a mobile switching period using different standards, and in particular, a protocol conversion can be performed simply by accommodating the signaling message of the mobile exchange without modification in the signaling message of the mobile terminal. The present invention relates to a mobile terminal and a base station and a method of accessing a mobile switching period.
    Code Division Multiple Access using the IS-95 / IS-634 / IS-41 standard in the construction of the Future Public Land Mobile Telecommunication System (hereinafter referred to as IMT-2000) system ; Hereinafter referred to as CDMA) digital mobile communication system and based on B-ISDN DSS2 UNI (Broadband Integrated Services Digital Network Digital Subscriber Signaling system No.2 User Network Interface; ITU-T Recommendation Q.2931) standard IMT-2000 can be configured using a wireless access network. In such a system, there is an advantage that the IMT-2000 service can be easily implemented in a short time, and in order to configure the IMT-2000 system having such a structure, the base station is configured between the IMT-2000 and the IS-95 / IS-634 / IS-41 protocol. A conversion function must be provided.
    Conventionally, a protocol translation rule is defined for a protocol within a compatible range for protocol conversion, and this method may be used when the target protocol has a similar protocol framework. That is, if the target protocol has the same protocol structure and the protocol message and the parameters in the message have similar meanings, but there is a difference in form, it is a method of defining and connecting a conversion rule between them. However, this method is technically difficult and inefficient in translating a message or parameter unique to each radio access method when the radio access methods such as CDMA and TDMA (Time Division Multiple Access) are different in the radio access method of the mobile communication system. There is a problem.
    Accordingly, the present invention determines the signaling method using system information including the base network shape information, and includes the signaling message of the mobile switch in the access protocol message and exchanges the message using the same, thereby exchanging the message with the mobile terminal and the base station without modifying the protocol. It is an object of the present invention to provide a mobile terminal capable of accessing a mobile switch and a base station and a method of connecting a mobile switching period.
    In accordance with an aspect of the present invention, a method for accessing a mobile terminal and a base station and a mobile switching period includes determining a signaling method by using a base network shape information broadcast by the base station, and the base station by the mobile terminal. Or receiving a signal message from the mobile switch, determining whether the message transmission device is a mobile terminal or a mobile switch using the signal message received by the base station, and the message transmission device is moved as a result of the determination of the message transmission device. In the case of a terminal, setting a message receiving device to a mobile switch, extracting a message of a mobile switch from a function information element in a signal message transmitted by a mobile terminal set to the message receiving device, and determining the message transmitting device. If the message sending device is a mobile switch in the step The method includes: setting a message receiving apparatus as a mobile terminal, constructing a signaling message by embedding a mobile exchange signaling message transmitted by the mobile exchange set as the message receiving apparatus into a function information element, and including the function information element; And transmitting the configured signal message to the message receiving apparatus.
    1 is a structural diagram of a general mobile communication system.
    2 is a structural diagram of a radio access network protocol message according to the present invention;
    3 is a flowchart illustrating a method for setting a signal mode of a mobile terminal according to the present invention;
    4 is a flowchart illustrating a method for processing a signal message by a base station according to the present invention.
    <Description of the symbols for the main parts of the drawings>
    11: wireless access network 12: base network
    111: mobile terminal 112: base station
    113: mobile exchange 114: this location register
    115: Certification Center
    21: message header 22: message content
    210: protocol identifier 211: call identifier
    212: message identifier 213: message length
    214: function information element header 215: application protocol data unit
    Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
    1 is a structural diagram of a general mobile communication system, and is largely composed of a radio access network 11 and a core network 12. The wireless access network 11 includes a mobile terminal 111, a mobile terminal 111, and a base station 112. The base network 12 also includes a Mobile Switching Center 113, a Home Location Register 114, and an Authentication Center 115.
    In order to easily implement the IMT-2000 service in a short time, the present invention uses a CDMA digital mobile communication system using the IS-95 / IS-634 / IS-41 standard as the base network and based on the B-ISDN DSS2 UNI standard. The IMT-2000 system is configured as a wireless access network. As such, when the radio access network 11 and the base network 12 use different standards, the base station should provide a conversion function between the mobile terminal and the mobile switching center.
    2 is a structural diagram of a radio access network protocol message according to the present invention.
    The Q.2931 protocol is used in the radio access network of the IMT-2000 system for call processing, mobility management, and radio resource control functions. The protocol message is largely composed of a message header 21 and a message content 22. The message header 21 portion includes a protocol discriminator 210, a call reference 211, a message type 212, and a message length 213. In addition, the message content (22) includes each information element defined in Q.2931 for call processing messages, and in addition to basic call processing in IMT-2000 for mobility management and radio resource control messages. Functional information elements (ITU-T Recommendation Q.2932.1) for the provision of Supplementary Services are included. The functional information element includes a header 214 for identifying the information element and an application protocol data unit (hereinafter referred to as APDU) 215. The APDU is an element defined in the Remote Operation Service Element (ROSE) protocol and includes operations for mobility management and radio resource management functions of the IMT-2000. In order to apply the protocol message to the present invention, an IS-95 signaling message is encapsulated in the APDU 215 and an IS-95 element is defined and set as the value of the message identifier 212.
    3 is a flowchart illustrating a method for setting a signal mode of a mobile terminal according to an embodiment of the present invention, in which a wireless access network uses an IMT-2000 system and an infrastructure network uses an IS-95 system. Example of the case.
    A base station of a typical mobile communication system performs a system access information broadcasting function as a function of broadcasting information necessary for using a wireless access network to a mobile terminal in a location area. In this case, the content of the broadcasted information includes a base station identification number (system identification and network identification), information about the neighboring base station (neighbor list) and information necessary for the determination of handover (handover). In the present invention, the broadcast includes the core network configuration information in the conventional system access information. The base network shape information is information indicating the type of the base network connected to the IMT-2000 base station and serves to indicate that the base network is IMT-2000 or IS-95.
    Referring to the drawings, a method for determining a signal mode by a mobile terminal is as follows. First, the mobile terminal 31 receives the base network shape information broadcasted by the base station. Thereafter, the mobile terminal determines whether the base station is connected to the IMT-2000 based network or the IS-95 based network from the base network shape information received from the base station (32). As a result of determining the access mode of the base station, when the base station is connected to the IS-95 based network, the signal mode is set to the IS-95 compatible mode (33). In step 32, if the base station is connected to the IMT-2000 based network, the signal mode is set to the IMT-2000 mode (34).
    4 is a flowchart illustrating a method for processing a signal message by a base station according to the present invention, which is an embodiment in which a wireless access network uses an IMT-2000 system and an infrastructure network uses an IS-95 system. .
    First, the base station receives (41) a signal message from the IMT-2000 mobile terminal or the IS-95 mobile switch and then determines (42) whether the message transmission device is an IMT-2000 mobile terminal. As a result of the determination of the message transmitting apparatus, if the message transmitting apparatus is an IMT-2000 mobile terminal, the message receiving apparatus is set to an IS-95 mobile exchange (43), and then in the functional information element in the signal message transmitted by the IMT-2000 mobile terminal. Extract 44 the message of the IS-95 mobile exchange. If the message transmitting device is an IS-95 mobile switch in step 42 of determining a message transmitting device, the message receiving device is set to an IMT-2000 mobile terminal (45), and then the IS-95 transmitted by the IS-95 mobile switching device. A message message is constructed 46 by embedding the message in a functional information element. Thereafter, the configured signal message is transmitted to the message receiving device 47 and then terminated.
    As described above, according to the present invention, since the signal exchange of the mobile exchange is accommodated in the signal message of the mobile terminal without modification, protocol translation is not required, so protocol conversion is quick and easy to implement, and is backward in the connection between protocols of the wireless access network and the underlying network. It has an excellent effect of maintaining backward compatibility.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] Determining, by the mobile terminal, a signaling method using the base network shape information broadcast by the base station;
    Receiving, by the base station, a signaling message from the mobile terminal or the mobile exchange,
    Determining whether a message transmission device is a mobile terminal or a mobile switch using a signal message received by the base station;
    Setting the message receiving device as a mobile switch when the message transmitting device is a mobile terminal as a result of the determination of the message transmitting device;
    Extracting a message of a mobile switch from a function information element in a signal message transmitted by a mobile terminal configured to the message receiving device;
    Setting the message receiving device as a mobile terminal when the message transmitting device is a mobile switch in determining the message transmitting device;
    Constructing a signaling message by embedding in the function information element a mobile exchange signaling message sent by the mobile exchange set in the message receiving apparatus;
    And transmitting a signal message comprising the function information element to a message receiving device.
    [2" claim-type="Currently amended] The method of claim 1, wherein the signal mode setting method of the mobile terminal comprises the steps of: receiving base network shape information from a base station;
    Determining a type of the base network to which the base station is connected from the base network shape information;
    Setting a signal mode to a mobile switch compatible mode when the base station is connected to a mobile terminal and a mobile switch using a different protocol from the base station as a result of determining the access mode of the base station;
    If the base station is connected to the mobile switching center using the same protocol as the mobile terminal and the base station as a result of the determination of the access mode of the base station, the mobile terminal and the base station and the mobile switch comprising the step of setting the signal mode to the mobile terminal mode Connection method
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    同族专利:
    公开号 | 公开日
    KR100273472B1|2000-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-11-06|Application filed by 정선종, 한국전자통신연구원
    1997-11-06|Priority to KR1019970058525A
    1999-06-05|Publication of KR19990038697A
    2000-12-15|Application granted
    2000-12-15|Publication of KR100273472B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970058525A|KR100273472B1|1997-11-06|1997-11-06|Protocol interface architecture for compatibility between IMT-2000 mobile terminal, base station and IS-41 mobile switching center|
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