KR100755721B1 - Dual Mode Terminal Capable Of Unlicensed Radio Network And CDMA Mobile Communication Network Converged Service - Google Patents

Abstract

According to the present invention, an unlicensed wireless network and a CDMA mobile communication network are provided so that all CDMA mobile communication services can be provided in a Wi-Fi / Bluetooth section when UMA (Unlicensed Mobile Access) technology is applied to a CDMA-based mobile communication network. The present invention relates to a dual mode terminal capable of a coordinated service. The present invention provides a CDMA modem and a wireless network modem in a mobile communication terminal to enable access to both a CDMA mobile communication network and an unlicensed wireless network, and a protocol corresponding to an accessible wireless network (ie, a CDMA wireless network or an unlicensed wireless network). By implementing a dual mode terminal configured as a stack, all services of a CDMA mobile communication network can be provided or provided through a wireless network accessed by the dual mode terminal, and thus all CDMA mobile communication services can be provided even in an unlicensed wireless network section. By utilizing the unlicensed wireless network, the service area of the CDMA mobile communication network can be expanded, thereby enabling the use of landline telephones for home / businesses to use mobile telephones. In addition, the present invention implements a dual-mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network, and in the case of a terminal user, one dual-mode terminal uses a low-cost UMA technology based on IP in a home / company to a CDMA mobile communication service. Can be provided.

Unlicensed Wireless Network, CDMA Mobile Network, UMA Technology, Interworking, Dual Mode Terminal, UMA-L3-CDMA Protocol

Description

Dual Mode Terminal Capable Of Unlicensed Radio Network And CDMA Mobile Communication Network Converged Service}

1 illustrates a converged service system in which a dual-mode terminal of the present invention is used.

2 is a block diagram illustrating a dual-mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network according to the present invention.

3 is a diagram illustrating a structure for voice call signaling of a dual mode terminal according to the present invention;

4 is a diagram illustrating a structure for voice call signaling of a dual-mode terminal used in a conventional GSM-based UMA technology.

5 is a diagram illustrating a structure for voice transmission of a voice call in a dual-mode terminal according to the present invention.

6 is a diagram illustrating a structure for voice transmission of a voice call of a dual-mode terminal used in a conventional GSM-based UMA technology.

7 is a diagram illustrating a structure for transmitting user data of a packet data call in a dual mode terminal according to the present invention.

8 is a diagram illustrating a structure for signaling a packet data call and transmitting user data of a dual-mode terminal used in a conventional GSM-based UMA technology.

Explanation of symbols on the main parts of the drawings

10: dual mode terminal 21: BTS

22: BSC 31: Wireless LAN AP

32: UNC 101: UI processing unit

102: CDMA call processing unit 103: CDMA L3 protocol processing unit

104: CDMA RF Module 105: CDMA Modem

106: CDMA L2 protocol processing unit 107: Unlicensed wireless module

108: Unlicensed Wireless Modem 109: TCP / IP & IPSec Protocol Processing Unit

110: UMA L3 processing unit 111: CDMA vocoder

112: RTP / UDP protocol processing unit

The present invention relates to a dual mode terminal, and in particular, when UMA (Unlicensed Mobile Access) technology is applied to a CDMA-based mobile communication network, so that all CDMA mobile communication services can be provided even in an unlicensed wireless (Wi-Fi / Bluetooth) section. The present invention relates to a dual-mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network.

Conventional unlicensed wireless network (Wi-Fi / Bluetooth) and GSM or UMTS mobile communication network or CDMA mobile communication network are overlapped with each other and unlicensed wireless network is rapidly spreading due to relatively high service speed and low service cost. On the other hand, there is a disadvantage of providing a narrow service area and low mobility, while the GSM or UMTS mobile communication network or CDMA mobile communication network has a low service speed and high cost, but supports a wide service area and high mobility.

For this reason, we have recently developed UMA (Unlicensed Mobile Access) technology, a convergence technology that combines unlicensed wireless network and GSM / UMTS mobile communication network. A dual mode terminal that can be connected is also developed.

Here, the UMA technology described above, unlike other wired / wireless combined service technologies in which a mobile communication core network and a VoIP network interoperate, performs a role similar to a base station controller (BSC) of a mobile communication network (UMA Network). The voice that the controller or UNC provided in the mobile communication network without changing the access point (Access Point, AP) of the wireless network, that is, the core network equipment (MSC, SGSN, HLR, etc.) constituting the existing mobile communication network through the wireless LAN AP. Can transparently provide data and additional services.

Therefore, in the case of using the above-described UMA technology, since the same service as the existing mobile communication network can be used by an unlicensed wireless network such as Wi-Fi or Bluetooth from the user's point of view, the mobile communication service provider is wired to the mobile communication shadow area such as the home. By installing IP network and wireless LAN AP, it is possible to reduce the shadow area and expand the service area at low cost, and to increase the profit from the mobile operator by inducing the conversion of the landline phone use to the mobile phone use at home. It became.

In addition, the UMA technology described above is based on a standard established by a combination of several wireless infrastructure providing companies, terminal manufacturing companies, and network operation companies, and subscribers use dual mode terminals to provide consistent mobile voice and data services. For this purpose, seamless roaming and service are supported by supporting handover of voice calls and data sessions between mobile and unauthorized wireless networks.

However, the conventional UMA technology is applicable only to a GSM / UMTS-based mobile communication network. In the case of a CDMA-based mobile communication network, a base station transceiver (BTS) and a base station associated with a GSM / UMTS mobile communication network and a radio resource control layer and Since the operation process and communication protocol of the Mobile Switching Center (MSC) are different, there is a problem that the above-described UMA federation standard and technical matters cannot be applied as it is, and the applicant of the present invention applies UMA technology to a CDMA-based mobile communication network. A converged service system and method have been proposed, and in connection with this, there is a need for a dual mode terminal that can be used in the above-described converged service system.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a CDMA modem and a wireless network modem in a mobile communication terminal, and to configure a protocol stack corresponding to a CDMA wireless network and an unlicensed wireless network. And a dual mode terminal capable of accessing both unlicensed and wireless networks.

Another object of the present invention is to implement a dual mode terminal capable of accessing both a CDMA mobile communication network and an unlicensed wireless network, thereby providing all the services of the CDMA mobile communication network through the wireless network accessed by the dual mode terminal, so that all the unlicensed wireless network sections In order to receive the CDMA mobile communication service, and to expand the service area of the CDMA mobile communication network, it is possible to convert the use of landline phones in the home / business to the use of mobile phones.

Another object of the present invention is to implement a dual mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network, and in the case of a terminal user, a single dual mode terminal using CMA using an inexpensive UMA technology based on IP in a home / company. It is to provide a mobile communication service.

A feature of the present invention for solving the above object is a wireless LAN AP that provides an IP-based wireless communication environment in an unlicensed wireless manner, and accesses the CDMA core network equipment through the CDMA standard A interface to serve as a BSC. It is connected to the WLAN AP to provide an IP-based wireless access, and communicates with the terminal using the UMA (Unlicensed Mobile Access) protocol corresponding to the CDMA L3 layer protocol, and performs handoff between the CDMA wireless network and the unauthorized wireless network. In an unlicensed wireless network and a CDMA mobile communication network convergence service system having a UNC (UMA Network Controller) that provides a CDMA mobile communication service, a CDMA modem and a wireless network modem are provided to access both a CDMA mobile network and an unlicensed wireless network. And a protocol stack corresponding to the CDMA wireless network and the unauthorized wireless network to access the CDMA wireless network. The UMA-L3-CDMA protocol uses the UMA-L3-CDMA protocol, which communicates with the BSC using the CDMA L3 protocol, receives the CDMA mobile communication service by accessing the CDMA core network, and transmits the CDMA L3 protocol message as an IP packet when accessing an unauthorized wireless network. By performing IP communication with the UNC through the WLAN AP, a dual-mode terminal capable of interworking with an unlicensed wireless network and a CDM mobile communication network provided with a CDMA mobile communication service by accessing a CDMA core network is provided.

In this case, the dual mode terminal is configured to control a CDMA-based voice and packet data call and a UI processing unit that provides a terminal user interface to perform the same function as a CDMA mobile communication terminal irrespective of the type of wireless network to be accessed. A CDMA L3 protocol processing unit for performing a CDMA call processing unit and L3 layer protocol processing for CDMA mobile communication, and performs a function of processing a CDMA RF module and a CDMA modem and CDMA-based mobile communication to support CDMA wireless network access A CDMA L2 protocol processor; TCP / IP & IPSec protocol that handles IP-based packet communication in unlicensed wireless module and unlicensed wireless modem and unlicensed wireless network to support unauthorized wireless network access and mutual authentication with UNC connected through WLAN AP. A processing unit; A UMA L3 processor for processing the UMA-L3-CDMA protocol stack between the CDMA L2 layer or the TCP / IP layer and the CDMA L3 layer; A CDMA vocoder for performing speech coding and decoding; And an RTP / UDP protocol processing unit supporting voice communication through an unlicensed wireless network.

At this time, the UMA L3 processing unit converts the protocol message of the upper CDMA L3 protocol processing unit according to the type of the wireless network currently accessed and transfers it to the lower CDMA L2 protocol processing unit or the TCP / IP & IPSec protocol processing unit, or the CDMA L2 protocol. It converts the protocol message of the processing unit or TCP / IP & IPSec protocol processing unit into the CDMA L3 protocol message and transfers it to the CDMA L3 protocol processing unit, and controls the CDMA vocoder according to the type of wireless network to be accessed to transfer voice coded voice data to the CDMA modem. Or it delivers to the RTP / UDP protocol processing.

The CDMA vocoder performs coding processing on a voice input through a microphone, and transfers the voice coded voice data to a CDMA modem which becomes a CDMA communication layer under the control of the UMA L3 processing unit or an RTP / UDP communication layer. The RTP / UDP protocol processing unit performs a function of decoding the voice coded speech data transmitted from the CDMA modem or the RTP / UDP protocol processing unit and outputting the same through a speaker.

In this case, the CDMA modem combines the signaling data, which is a protocol message of the CDMA L2 protocol processing unit, with the voice data transmitted from the CDMA vocoder, and delivers the CDMA RF module to the CDMA RF module or transmits the CDMA data transmitted from the CDMA RF module to the signaling data and the voice data. Separated by the CDMA L2 protocol processing unit and the CDMA vocoder are characterized in that the transfer.

The RTP / UDP protocol processor may process RTP / UDP communication for processing IP-based voice data in an unauthorized wireless network, but RTP / UDP may be used for voice data transmitted between a CDMA vocoder and a TCP / IP & IPSec processor. Characterized by performing UDP protocol processing.

Furthermore, in the dual mode terminal, the CDMA L3 layer is not divided into sublayers, and call processing, mobility, and radio control functions are all included in the CDMA L3 layer, and the UMA-L3 layer is located below the CDMA L3 layer. When adding a CDMA layer to receive a CDMA L3 layer protocol message for voice call or packet data call signaling, branching to the CDMA L2 layer according to the accessing wireless network, or branching to the IP communication layer for UMA It is done.

In this case, the UMA-L3-CDMA layer performs a function of determining whether a voice call service or a packet data call service is specified as a service option, and performs voice call signaling or packet data call signaling according to the result. It is characterized by.

The dual mode terminal adds a UMA-L3-CDMA layer below the CDMA L3 layer and branches to the CDMA L2 layer according to a wireless network for accessing user data of an upper PPP layer, or as an IP communication layer for UMA. It is characterized by branching.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, unlike the existing GSM-based mobile communication network, UMA technology that can operate in a CDMA-based mobile communication network that does not exist as an independent layer of the Radio Resource (RR) part of the L3 layer, which handles radio access. To provide a dual mode terminal that can be used in a converged service system that combines and interoperates with an unlicensed wireless network (Wi-Fi / Bluetooth) and a CDMA mobile communication network. The converged service system used will now be described with reference to FIG. 1.

In the present invention, the unlicensed wireless network and CDMA mobile communication network convergence service system, as shown in Figure 1, the dual mode terminal 10 having a UMA function, the BTS 21 and the BSC 22 of the CDMA mobile communication network, unlicensed In the wireless network, a wireless LAN AP 31 serving as a BTS and a UNSC 32 serving as a BSC are provided. In this case, a CDMA wireless network using a CDMA transmission network between the BTS 21 and the BSC 22 is provided. Implement an Access Network (CDMA RAN), and implement an Unlicensed Mobile Access Network (UMAN) using an IP-based transport network (ie, an IP transport network) between the WLAN AP 31 and the UNC 32. .

The dual mode terminal 10 is a mobile communication terminal having a function of accessing a CDMA based wireless network, that is, a CDMA mobile communication network and an unlicensed wireless network, and provides all services of the CDMA mobile communication network through the wireless network to which the dual mode terminal 10 is connected. In case of access to the unauthorized wireless network, IP communication with the UNC 32 is performed. That is, when accessing a CDMA wireless network, the CDMA L3 protocol is used to communicate with the BSC 22 to access the CDMA core network to provide CDMA mobile communication services, and when accessing an unauthorized wireless network, the CDMA L3 protocol message is IP. It uses the UMA-L3-CDMA protocol to transmit packets, and communicates with the UNC 32 to access the CDMA core network and receive CDMA mobile communication services. Here, the UMA-L3-CDMA protocol is a protocol operating in the UNC 32, and serves to provide a matching function of the CDMA network and the UMA network (the gateway role). In this case, an IP communication path to the UNC 32 is provided by accessing the wireless LAN AP 31 of the unlicensed wireless network through an unlicensed wireless modem (Wi-Fi modem or Bluetooth modem).

The WLAN AP 31 performs wireless communication with the dual mode terminal 10 in an unlicensed wireless manner such as Wi-Fi (802.11) or Bluetooth, and accesses a broadband IP transmission network such as xDSL, cable modem, or optical communication (FTTH). It provides the dual mode terminal 10 to the IP-based wireless communication environment, and provides IP communication with the UNC (32).

UNC 32 is connected to MSC and PDSN, which are CDMA Core Network equipments, through CDMA standard A interface, and plays the same role as BSC 22, and is connected to WLAN AP 31 via IP transport network and is dual. It provides IP-based wireless connection with the mode terminal 10 and performs a BSC role, thus communicating with the dual mode terminal 10 using the UMA protocol corresponding to the CDMA L3 layer protocol, and thus, between the CDMA wireless network and the unlicensed wireless network. Supporting handoff provides seamless roaming and transparent CDMA mobile communication services. In addition, to secure the communication in the IP delivery network, establishes an IP Security Protocol session with the dual mode terminal 10, performs encrypted IP communication, and performs mutual authentication procedure with the connected dual mode terminal 10. do.

The dual-mode terminal 10 according to the present invention used in the above-described converged service system includes both a CDMA modem and a wireless network modem to access both a CDMA mobile communication network and an unlicensed wireless network. By configuring the protocol stack corresponding to the CDMA wireless network and the unlicensed wireless network, all the services of the CDMA mobile communication network are provided through the wireless network accessed by the CDMA wireless network. The dual mode terminal 10 is illustrated in FIG. It has the configuration as shown.

That is, the dual-mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network according to the present invention performs the same function as a general CDMA mobile communication terminal regardless of the type of wireless network to which the wireless mode is accessed. It basically includes a UI processing unit 101, a CDMA call processing unit 102 and a CDMA L3 protocol processing unit 103, and the CDMA RF module 104, CDMA modem 105 and CDMA L2 to support CDMA wireless network access A protocol processing unit 106, an unlicensed wireless module 107, an unlicensed wireless modem 108 and a TCP / IP & IPSec protocol processing unit 109 for supporting unlicensed wireless network access, a CDMA L2 layer or a TCP / IP layer, UMA L3 processing unit 110 for processing the UMA-L3-CDMA protocol stack between the CDMA L3 layer, CDMA vocoder 111 for performing voice coding and decoding, and RTP / for supporting voice communication through an unlicensed wireless network. UD The P protocol processing part 112 is provided.

Here, the UI processing unit 101 provides an interface such as key button input or screen output to the terminal user, the CDMA call processing unit 102 controls a CDMA-based voice and packet data call, and the CDMA L3 protocol processing unit 103 ) Performs L3 layer protocol processing for CDMA mobile communication.

In addition, the CDMA L2 protocol processor 106 performs a function of processing CDMA based mobile communication through the CDMA modem 105 and the CDMA RF module 104, and the TCP / IP & IPSec protocol processor 109 is an unlicensed radio. The modem 108 and the unlicensed wireless module 109 process IP-based packet communication in the unlicensed wireless network, and perform mutual authentication with the UNC 32 connected through the WLAN AP 31.

The UMA L3 processor 110 processes the UMA-L3-CDMA protocol stack between the CDMA L2 layer or the TCP / IP layer and the CDMA L3 layer, but currently accesses the protocol messages of the upper CDMA L3 protocol processor 103. The CDMA L2 protocol processing unit 106 or the TCP / IP & IPSec protocol processing unit 109 converts the CDMA L2 protocol processing unit 106 or the TCP / IP & IPSec protocol processing unit 109 into the CDMA L2 protocol processing unit 106 or the TCP / IP & IPSec protocol processing unit 109. The CDMA L3 protocol message is converted into a CDMA L3 protocol processor 103 and transmitted to the upper CDMA L3 protocol processing unit 103. The CDMA vocoder 111 is controlled according to the type of wireless network to be accessed to convert the voice coded voice data into the CDMA modem 105. Or it transfers to the RTP / UDP protocol processing unit 112.

The CDMA vocoder 111 performs coding processing on the voice input through the microphone and transfers the voice coded voice data to the CDMA modem 105 under the control of the UMA L3 processing unit 110, or RTP / UDP. It transmits to the protocol processing unit 112, decodes the speech coded speech data transmitted from the CDMA modem 105 or RTP / UDP protocol processing unit 112 and outputs through the speaker. In this case, the CDMA modem 105 combines the signaling data, which is the protocol message of the CDMA L2 protocol processing unit 106, and the voice data transmitted from the CDMA vocoder 111, and delivers the mixed data to the CDMA RF module 104 or vice versa. The CDMA data transmitted from the RF module 104 is separated into signaling data and voice data, and then transferred to the CDMA L2 protocol processor 106 and the CDMA vocoder 111, respectively.

The RTP / UDP protocol processing unit 112 processes RTP / UDP (Real Time Protocol / User Datagram Protocol) communication for processing IP-based voice data in an unauthorized wireless network, but uses the CDMA vocoder 111 and TCP / IP & IPSec. RTP / UDP protocol processing is performed on the voice data transferred between the processing units 109.

In the dual mode terminal described above, a predetermined CDMA mobile communication service is provided in connection with an unlicensed wireless network and a CDMA mobile communication network, and the structure for voice call signaling of the dual mode terminal is shown in FIG. Compared with the dual mode terminal used in the conventional GSM-based UMA technology, it is conventionally illustrated as shown in FIG. 4 that the CDMA L3 layer protocol is intermediate with the upper layer of a call management related CM (Connection Management) sublayer. Although the mobility-related MM (Mobility Management) sublayer and the lower radio control related RR (Radio Resource) sublayer protocols are separated, in the present invention, the CDMA L3 layer protocol is not separated into the sublayers and RR / MM / CC functions are not included. All of them are included in the CDMA L3 layer, so that the UMA-L3-CDMA layer is further defined below the CDMA L3 layer without modifying the CDMA L3 layer. Where the UMA-L3-CDMA layer branches to the CDMA L2 layer (LAC / MAC) according to the currently accessed wireless network (ie, unlicensed or CDMA wireless network) when it receives a protocol message of the CDMA L3 layer. Or branch to the IP communication layer for the UMA. In addition, in the present invention, the packet data call signaling method uses the same method as the above-mentioned voice call signaling method, and is a voice call service or a packet data call service by designating a service option in the UMA-L3-CDMA layer. Voice call signaling or packet data call signaling processing is performed by performing a function of determining.

And, the structure for voice transmission of the voice call in the dual-mode terminal of the present invention is as shown in Figure 5, which is compared with the conventional dual-mode terminal used in the GSM-based UMA technology, conventionally attached As shown in FIG. 6, the UMA-L3-CDMA layer is performed after performing a voice codec (CDMA codec) process, while having a structure for performing a voice codec (GERAN Codec) process under the access mode switch. According to the wireless network to access the voice data in the CDMA communication layer or has a structure for branching to the RTP / UDP communication layer for the UMA.

In addition, the structure for the user data transfer of the packet data call in the dual-mode terminal of the present invention is as shown in Figure 7, which is compared with the dual-mode terminal used in the conventional GSM-based UMA technology, conventionally attached As shown in FIG. 8, in order to perform signaling and GPRS user data processing for establishing a packet data call GPRS, the RR layer of the GPRS is separated to have a structure divided into a GPRS-RLC layer and a UMA-RLC layer. In contrast, the present invention has a structure of branching to a CDMA L2 layer (LAC / MAC) or to an IP communication layer for UMA according to a wireless network that accesses user data of a higher PPP layer in the UMA-L3-CDMA layer. .

In addition, the embodiment according to the present invention is not limited to the above-described embodiments, and various alternatives, modifications, and changes can be made within the scope apparent to those skilled in the art.

As described above, the present invention includes a CDMA modem and a wireless network modem in a mobile communication terminal to enable access to both a CDMA mobile communication network and an unlicensed wireless network, and also to an accessible wireless network (that is, a CDMA wireless network or an unlicensed wireless network). By implementing a dual mode terminal having a protocol stack corresponding to the above, all services of a CDMA mobile communication network can be provided or received through a wireless network accessed by the dual mode terminal, and thus all CDMA mobile communication can be provided even in an unlicensed wireless network section. By utilizing the unlicensed wireless network such as being able to receive the service, the service area of the CDMA mobile communication network can be expanded, thereby enabling the use of landline telephones for home / businesses to use mobile telephones.

In addition, the present invention implements a dual-mode terminal capable of interworking with an unlicensed wireless network and a CDMA mobile communication network, and in the case of a terminal user, one dual-mode terminal uses a low-cost UMA technology based on IP in a home / company to a CDMA mobile communication service. Can be provided.

Claims (9)

A wireless LAN AP providing an IP-based wireless communication environment in an unlicensed wireless manner, and performs a role like a BSC by connecting to a CDMA core network device through a CDMA standard A interface, and is connected to the wireless LAN AP to perform an IP-based wireless access UNC (UMA Network Controller) that provides a CDMA mobile communication service by providing a CDMA L3 layer protocol and communicating with a UMA (Unlicensed Mobile Access) protocol corresponding to the CDMA L3 layer protocol, and supporting handoff between a CDMA wireless network and an unlicensed wireless network. In the unlicensed wireless network and CDMA mobile communication network convergence service system comprising: A CDMA modem and a wireless network modem are provided to access both a CDMA mobile network and an unlicensed wireless network. The CDMA L3 protocol is used to access a CDMA wireless network by configuring a protocol stack corresponding to the CDMA wireless network and an unlicensed wireless network. Access to the CDMA core network while communicating with the BSC to receive a CDMA mobile communication service, and when accessing an unauthorized wireless network, through the WLAN AP using the UMA-L3-CDMA protocol that transmits a CDMA L3 protocol message as an IP packet. A dual mode terminal capable of interworking with an unlicensed wireless network and a CDA mobile communication network, characterized in that a CDMA mobile communication service is provided by accessing a CDMA core network while performing IP communication with the UNC. The method of claim 1, The dual mode terminal, regardless of the type of wireless network accessed, the UI processing unit for providing a terminal user interface and a CDMA call for controlling a CDMA-based voice and packet data call to perform the same function as a CDMA mobile communication terminal. A processing unit and a CDMA L3 protocol processing unit for performing L3 layer protocol processing for CDMA mobile communication, A CDMA L2 protocol processor for performing a function of processing a CDMA RF module, a CDMA modem, and CDMA-based mobile communication for supporting CDMA wireless network access; TCP / IP & IPSec protocol that handles IP-based packet communication in unlicensed wireless module and unlicensed wireless modem and unlicensed wireless network to support unauthorized wireless network access and mutual authentication with UNC connected through WLAN AP. A processing unit; A UMA L3 processor for processing the UMA-L3-CDMA protocol stack between the CDMA L2 layer or the TCP / IP layer and the CDMA L3 layer; A CDMA vocoder for performing speech coding and decoding; A dual mode terminal capable of interworking with an unlicensed wireless network and a CDA mobile communication network, the RTP / UDP protocol processing unit supporting voice communication through an unlicensed wireless network. The method of claim 2, The UMA L3 processing unit converts the protocol message of the upper CDMA L3 protocol processing unit according to the type of wireless network currently accessed and transfers it to the lower CDMA L2 protocol processing unit or the TCP / IP & IPSec protocol processing unit, or the CDMA L2 protocol processing unit or Converts the protocol message of TCP / IP & IPSec protocol processing unit into CDMA L3 protocol message and transfers it to the CDMA L3 protocol processing unit, and controls the CDMA vocoder according to the type of wireless network to be accessed. Dual-mode terminal capable of interworking with an unauthorized wireless network and CDM mobile communication network, characterized in that the transfer to the / UDP protocol processing unit. The method of claim 3, wherein The CDMA vocoder performs coding processing on a voice input through a microphone, and transfers the voice coded voice data to a CDMA modem which becomes a CDMA communication layer under the control of the UMA L3 processing unit, or becomes an RTP / UDP communication layer. Unlicensed wireless network and CDM, characterized in that for transmitting to the RTP / UDP protocol processing unit, decoding the speech coded speech data transmitted from the CDMA modem or RTP / UDP protocol processing unit and outputs through the speaker A mobile terminal capable of interworking services. The method according to claim 2 or 4, The CDMA modem combines signaling data, which is a protocol message of a CDMA L2 protocol processing unit, with voice data transmitted from a CDMA vocoder, and delivers them to a CDMA RF module, or separates CDMA data transferred from the CDMA RF module into signaling data and voice data. And a dual mode terminal capable of interworking with an unlicensed wireless network and a CDM mobile communication network, characterized in that each of the CDMA L2 protocol processing unit and the CDMA vocoder are delivered to each other. The method of claim 2, The RTP / UDP protocol processing unit processes RTP / UDP communication for processing IP-based voice data in an unauthorized wireless network, but RTP / UDP protocol for voice data transmitted between the CDMA vocoder and the TCP / IP & IPSec processing unit. A dual mode terminal capable of interworking with an unlicensed wireless network and a CDM mobile communication network, which performs processing. The method of claim 1, In the dual mode terminal, the CDMA L3 layer is not divided into sublayers, and all of the call processing, mobility, and radio control functions include the CDMA L3 layer, and the UMA-L3-CDMA is located below the CDMA L3 layer. When adding a layer to receive a CDMA L3 layer protocol message for voice call or packet data call signaling, branching to the CDMA L2 layer according to the accessing wireless network, or branching to the IP communication layer for UMA Dual-mode terminal capable of interworking with unlicensed wireless network and CDA mobile communication network. The method of claim 7, wherein The UMA-L3-CDMA layer performs a function of determining whether it is a voice call service or a packet data call service by designating a service option, and performs voice call signaling or packet data call signaling processing according to the result. A dual mode terminal capable of interworking with an unlicensed wireless network and a CDA mobile communication network. The method of claim 1, The dual mode terminal adds a UMA-L3-CDMA layer below the CDMA L3 layer and branches to the CDMA L2 layer according to a wireless network for accessing user data of a higher PPP layer, or branches to an IP communication layer for UMA. A dual mode terminal capable of interworking with an unlicensed wireless network and a CDA mobile communication network.

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