KR20070032535A - Method For Call Processing And Handoff Processing In The Converged Service System Of Unlicensed Radio Network And CDMA Mobile Communication Network - Google Patents

Abstract

A call and handoff processing method in a UMAN(Unlicensed Mobile Access Network)/CDMA mobile network-combined service system is provided to offer inexpensive, high-quality CDMA mobile communication services by expanding the service coverage of a CDMA mobile network using a UMAN, without modifying the existing CDMA core network equipments. In case a dual mode MS(Mobile Station)(10), located in a UMAN, makes a voice call origination request, a UNC(UMA Network Controller)(32) requests the MSC(41) of a CDMA core network to allocate a channel for the voice call origination of the dual mode MS(10), and establishes a TDM channel. The UNC(32) makes the dual mode MS(10) select a service option for the origination-requested voice call according to UMA-L3-CDMA protocol, and establishes a voice call path which connects the dual mode MS(10) to the MSC(41) through the UMAN. in case the terminating party responds to the voice call, an RTP packet is used in processing the voice traffic between the dual mode MS(10) and the UNC(32). In processing the voice traffic between the UNC(32) and the MSC(41), PCM data are used through the TDM channel.

Description

Method for Call Processing and Handoff Processing In The Converged Service System Of Unlicensed Radio Network And CDMA Mobile Communication Network}

1 is a diagram illustrating an interworking structure of an unlicensed wireless network and a CDMA mobile communication network convergence service system according to the present invention;

2 is a diagram illustrating an interworking structure for providing a CDMA mobile communication service when a dual mode MS accesses an unlicensed wireless network through a WLAN AP in a converged service system according to the present invention.

3 is a diagram illustrating a voice call origination processing procedure when a dual mode MS is connected to an unauthorized wireless network in the converged service system according to the present invention.

4 is a diagram illustrating a voice call reception processing procedure when a dual mode MS is connected to an unlicensed wireless network in the converged service system according to the present invention.

5 is a diagram illustrating a packet data call origination processing procedure when a dual mode MS accesses an unlicensed wireless network in a converged service system according to the present invention.

6 to 11 illustrate a handoff processing procedure when a dual mode MS moves from a CDMA wireless network to an unlicensed wireless network in the converged service system according to the present invention.

12 to 16 illustrate a handoff processing procedure when a dual mode MS moves from an unlicensed wireless network to a CDMA wireless network in the converged service system according to the present invention.

Explanation of symbols on the main parts of the drawings

10: Dual mode MS 21: BTS

22: BSC 22-1: Source BSC

22-2: target BSC 31: WLAN AP

32: UNC 32-1: Target UNC

32-2: Source UNC 41: MSC

42: AAA Server 43: PDSN

The present invention relates to an interworking service between an unlicensed wireless network and a CDMA mobile communication network. In particular, the present invention relates to an unlicensed wireless network for a dual mode MS by combining a CDMA-based mobile communication network and an unlicensed wireless network (Wi-Fi / Bluetooth). The present invention relates to a call processing and handoff processing method in an unlicensed wireless network and a CDMA mobile communication network converged service system capable of providing all CDMA mobile communication services even in a section.

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, the recent development of a dual mode mobile station (dual mode mobile station) capable of connecting to both an unauthorized wireless network and a GSM / UMTS mobile communication network has also been developed. We developed the UMA (Unlicensed Mobile Access) technology, which is a convergence technology that enables interoperability.

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. It can transparently provide data and additional services.

Therefore, in the case of using the above-described UMA technology, 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. 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 MS to provide consistent mobile voice and data services. For this purpose, seamless roaming and service are possible by supporting handoff of mobile 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, that is, in case of a CDMA-based mobile communication network, unlike a GSM / UMTS mobile communication network, an RR (Radio Resource) function that handles radio access processing among L3 layers is handled. Since it does not exist as an independent layer, call processing method, protocol, and handoff processing between dual-mode MS and UNC are different from the existing GSM-based UMA standard. There was a problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to enable a series of call processing for a dual-mode MS in an unlicensed wireless network and a CDMA mobile communication network converged service system, thereby providing voice call and packet data from a user's point of view. All services of the existing CDMA mobile communication network such as service, short message service and various additional services can be used in the same way in the unauthorized wireless network, and the mobile communication service provider can utilize the unauthorized wireless network without changing the existing CDMA core network equipment. The service area of a CDMA mobile communication network can be extended to an unlicensed wireless network section, thereby providing a high quality CDMA mobile communication service at a lower cost than the CDMA mobile communication network.

Another object of the present invention is to enable a series of handoff processing for a dual-mode MS in an unlicensed wireless network and a CDMA mobile communication network convergence service system, thereby allowing a dual-mode MS user to perform unlicensed wireless network and CDMA mobility without any additional operation. Even if the access network is changed between communication networks, the CDMA mobile communication service can be used without interruption.

A feature of the present invention for solving the above object is a call processing method in a converged service system for combining and interworking an unlicensed wireless network and a CDMA mobile communication network, wherein the dual-mode MS located in the unlicensed wireless network Setting a TDM channel by requesting a channel allocation for voice call origination of the dual mode MS from a UNC (UMA Network Controller) to a MSC of a CDMA core network when a voice call origination request is made; After the UNC allows a dual mode MS to set service options for an outgoing voice call according to the UMA-L3-CDMA protocol, a voice call path is connected from the dual mode MS to an MSC of a CDMA core network through an unauthorized wireless network. Setting process; Providing a CDMA voice call service by processing voice traffic by using an RTP packet between the dual mode MS and a UNC and using PCM data through a TDM channel between the UNC and the MSC when the called party responds. The present invention relates to a call processing method in an unlicensed wireless network and a CDM mobile communication network.

Another feature of the present invention is a call processing method in a converged service system for combining and interworking an unlicensed wireless network and a CDMA mobile communication network, wherein a voice call request is requested from a MSC of a CDMA core network to a dual-mode MS located in an unlicensed wireless network. Requesting paging of the dual-mode MS from the MSC to the UNC when this occurs; Performing paging in the UNC to an incoming dual-mode MS through the unlicensed wireless network according to the UMA-L3-CDMA protocol; When the incoming dual mode MS responds to a paging request, setting up a channel for an incoming voice call between the MSC and an incoming dual mode MS in the UNC according to the voice call processing channel allocation instruction of the MSC; After the UNC allows the incoming dual-mode MS to set the service option for the incoming voice call according to the UMA-L3-CDMA protocol, it is connected from the MSC of the CDMA core network to the incoming dual-mode MS through an unlicensed wireless network. Establishing a voice call path; When the called party answers the call after transmitting the call message to the incoming dual mode MS, the RTP packet is used between the incoming dual mode MS and the UNC, and the PCM data through the TDM channel is used between the UNC and the MSC. The present invention provides a method for processing a call in an unlicensed wireless network and a CDM converged service system including a process of providing a CDMA voice call service by processing voice traffic.

Here, in the process of establishing a voice call path through the unauthorized wireless network, the dual mode MS transmits the RTP packet of null traffic to the UNC through the WLAN AP to notify that the voice call data is being transmitted. Steps; Transmitting a response message to the dual mode MS indicating that voice call data normally arrives according to the UMA-L3-CDMA protocol in the UNC receiving the RTP packet from the dual mode MS; The UNC allows a dual mode MS to set service options for an outgoing or incoming voice call according to the UMA-L3-CDMA protocol, and then connects the voice from the dual mode MS to the MSC of the CDMA core network through the UNC of the unauthorized wireless network. Establishing a call path.

According to still another aspect of the present invention, in a call processing method in a converged service system for combining and interworking an unauthorized wireless network and a CDMA mobile communication network, a UNC is requested when a packet data call origination request of a dual-mode MS located in the unauthorized wireless network is performed. Allocating a channel for packet data call origination of the dual-mode MS in association with an MSC of a CDMA core network in the CDMA core network; Transitioning the state information of the dual-mode MS managed by the MSC to the packet data service state after establishing a packet data call connection through the CDMA standard A11 interface with the PDSN of the CDMA core network in the UNC; After establishing a PPP session between the dual mode MS and the PDSN in the UNC, a CDMA packet data service is provided to the dual mode MS by transmitting user data in a PPP packet based on a UDP protocol and a Generic Routing Encapsulation (GRE) protocol. The present invention relates to a call processing method in an unlicensed wireless network and a CDM converged service system including a process of performing the process.

In the aforementioned unlicensed wireless network and CDM mobile communication network convergence service system, the call processing method includes mutual authentication with the dual mode MS in the UNC when the dual mode MS located in the unlicensed wireless network accesses the UNC through the WLAN AP. Establishing an IP security protocol session while performing the processing; And performing a user registration by performing mutual communication with the dual mode MS in the UNC, and registering with the MSC of the CDMA core network through an unlicensed wireless network, and transitioning to a state where call processing is possible.

In addition, the present invention provides a handoff processing method in a converged service system for combining and interworking with an unlicensed wireless network and a CDMA mobile communication network, wherein the dual-mode MS is connected to a source BSC of a CDMA wireless network and performs voice communication. Registering with a target UNC through a WLAN AP of the unlicensed wireless network when moving to a service area of the network; Establishing a voice call processing path between the target UNC and the MSC of the CDMA core network by transmitting a handoff request message from the source BSC to the target UNC through the MSC of the CDMA core network when the handoff is to be performed to an unauthorized wireless network; Instructing the source BSC to handoff the source BSC to allow the dual-mode MS to perform the actual voice call through the source BSC of the CDMA wireless network, but also to transmit an RTP packet to the target UNC of the unlicensed wireless network; ; Allowing the dual-mode MS to conduct a voice call over a target UNC of the unlicensed wireless network and then disconnecting the source BSC to complete a handoff from the CDMA wireless network to the unlicensed wireless network. To implement a handoff processing method in a network and CDA mobile communication network converged service system.

Another aspect of the present invention is a handoff processing method in a converged service system for combining and interworking an unlicensed wireless network and a CDMA mobile communication network, wherein a dual mode MS is connected to a source UNC of an unlicensed wireless network during a voice call. Activating a CDMA transceiver in the dual-mode MS when handoff to a CDMA wireless network is to be performed, and starting handoff to the CDMA wireless network; After determining the handoff target BSC in the MSC of the CDMA core network according to the handoff request of the source UNC, a voice call processing path is established between the target BSC and the MSC by transmitting a handoff request message to the target BSC which is the handoff target BSC. Process of doing; Instructing handoff from the MSC to a source UNC to perform a voice call in a dual mode MS through a source UNC of an unlicensed wireless network, but also starting CDMA communication with a target BSC of the CDMA wireless network; Allowing the dual-mode MS to perform a voice call over a target BSC of the CDMA wireless network and then disconnecting the source UNC to complete a handoff from the unlicensed wireless network to the CDMA wireless network. To implement a handoff processing method in a network and CDA mobile communication network converged service system.

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

The present invention implements UMA technology that can operate in a CDMA-based mobile communication network, that is, a UMA technology for combining and interworking an unlicensed wireless network (Wi-Fi / Bluetooth) and a CDMA mobile communication network. To provide a call processing and handoff processing method between mobile communication networks, an unlicensed wireless network and a CDMA mobile communication network convergence service system implemented in such a call processing and handoff processing method have the configuration as shown in FIG.

That is, the unlicensed wireless network and CDMA mobile communication network convergence service system according to the present invention, as shown in Figure 1, the dual-mode MS (10) having a UMA function, the BTS 21 and BSC (22) of the CDMA mobile communication network ), A wireless LAN AP 31 serving as a BTS and an UNC 32 serving as a BSC in an unlicensed wireless network, wherein a CDMA wireless network is used between the BTS 21 and the BSC 22 using a CDMA transmission network. (Radio Access Network) (CDMA RAN) and an unlicensed mobile access network (UMAN) by using an IP-based transport network (i.e., an IP transport network) between the WLAN AP 31 and the UNC 32. Implement

The dual mode MS 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 its wireless network. In case of access to the unauthorized wireless network, IP communication with the UNC 32 is performed.

The WLAN AP 31 performs wireless communication with the dual mode MS 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 a dual-mode MS (10) IP-based wireless communication environment, and provides IP communication with the UNC (32).

The UNC 32 connects to the MSC 41 and the PDSN 43, which are CDMA core network equipments, through the CDMA standard A interface, and performs the same role as the BSC 22, and the wireless LAN AP ( 31) to provide dual-mode MS 10 and IP-based wireless access, but performs a BSC role, and communicates with the dual-mode MS 10 and the UMA protocol corresponding to the CDMA L3 layer protocol, through which CDMA wireless By supporting handoff between a network and an unlicensed wireless network, seamless roaming and transparent CDMA mobile communication services are provided. In addition, to secure the communication in the IP transport network, a dual-mode MS 10 establishes an IP Security Protocol (IP Security Protocol (IPSec)) session and performs encrypted IP communication, and a mutual authentication procedure with the connected dual-mode MS 10 is performed. Perform

The voice call / incoming processing procedure of the unlicensed wireless network and the CDMA mobile communication network converged service system having the above-described configuration will be described in the case where the dual mode MS 10 accesses the CDMA wireless network through the BTS 21. Voice call / incoming processing procedure, and the voice call / incoming processing procedure when the dual mode MS 10 is connected to an unauthorized wireless network through the WLAN AP 31.

Here, since the voice call / call processing procedure when the dual mode MS 10 accesses the CDMA wireless network through the BTS 21 is the same as the service procedure in the general CDMA mobile communication network, the description thereof will be omitted.

When the dual mode MS 10 is connected to an unlicensed wireless network through the WLAN AP 31, that is, as shown in FIG. 2, management of an arbitrary WLAN AP 31 or WLAN AP A is performed. The dual mode MS 10 in the area connects to the UNC 32 through its WLAN AP 31, and the voice call / call processing procedure to the CDMA core network will be described with reference to FIGS. 3 and 4. The explanation is as follows.

First, referring to FIG. 3, a voice call origination procedure is described. A dual mode MS 10 located in a predetermined unauthorized wireless network accesses a wireless LAN AP 31 on an unauthorized wireless network and then connects to the UNC 32. When the access procedure starts, the UNC 32 establishes an IP Security Protocol (IPSec) session while performing mutual authentication with the dual mode MS 10 connected to the WLAN AP 31.

When the connection between the UNC 32 and the dual mode MS 10 is completed in this way, the UNC 32 performs user registration by performing mutual communication with the dual mode MS 10 according to a series of registration procedures. When the user registration is normally completed, the mobile station transitions to a state in which a mobile communication service can be used through a UMA network, that is, an unauthorized wireless network.

The UNC 32 registers the dual mode MS 10 connected through the WLAN AP 31 to the MSC 41 of the CDMA core network through an unlicensed wireless network according to a predetermined location registration procedure. When the location registration is completed normally, the dual mode MS 10 transitions to the state where voice call processing is possible. At this time, the UNC 32 supports subscriber authentication for the dual mode MS 10 by performing IP communication with the AAA 42, which is a subscriber authentication server of the CDMA core network.

In this state, when the user of the dual mode MS 10 dials the other party's telephone number and presses the call button for a predetermined button operation for the voice call, the dual mode MS 10 performs the UMA that performs the function of the CDMA L3 layer. In accordance with the L3-CDMA protocol, a predetermined call request message (UL3 Origination Message) is transmitted to the UNC 32 to request voice call origination.

Accordingly, the UNC 32 transfers the call management related CM (Request Management) service request contents to the MSC 41 of the CDMA core network by loading a CM service request message in a predetermined CM Request Request message through the CDMA standard A1 interface. A channel allocation request for mode call origination of the mode MS 10 is requested, which is performed in the same message and procedure as the BSC requesting the CDMA radio channel allocation through the existing A interface to the MSC in the CDMA mobile communication network. 41) performs the same procedure regardless of the type of wireless network to which the dual mode MS 10 is connected.

The MSC 41 of the CDMA core network instructs the dual mode MS 10 to allocate a channel for voice call processing by transmitting an assignment request message to the UNC 32 when voice call origination is possible. The UNC 32 sets up a voice line, that is, a TDM channel, with the MSC 41 of the CDMA core network using the channel assignment information specified in the MSC 41 allocation request message. The TDM channel represented by the circuit identification code (CIC) code is established between the UNC 32 and the MSC 41 of the CDMA core network. After the MSC 41 and the voice line, that is, the TDM channel are established, the CDMA L3 is established. Voice call data can be transmitted and received by transmitting a predetermined channel assignment message (UL3 Channel Assignment Message) to the dual mode MS 10 through the WLAN AP 31 according to the UMA-L3-CDMA protocol performing a layer function. You will be notified.

Then, the dual mode MS 10 notifies the UNC 32 that it is transmitting voice call data by transmitting an RTP packet of null traffic to the UNC 32 through the WLAN AP 31. Upon receiving the RTP packet from the dual mode MS 10, the UNC 32 receives a response message (UL3 BS Acknowledge Order Message) indicating that voice call data arrives normally according to the UMA-L3-CDMA protocol. To (10).

Since UNC 32 of the unlicensed wireless network has various service options in the CDMA mobile communication network, the UNC 32 provides a dual-mode MS 10 according to the UMA-L3-CDMA protocol to specify service settings for an outgoing request voice call. The dual mode MS 10 receiving the service connection message transmits a UL3 Service Connect Message according to the UMA-L3-CDMA protocol. ) As a response message.

When the UNC 32 receives the service connection completion message from the dual mode MS 10, the UNC 32 is connected to the MSC 41 of the CDMA core network through the UNC 32 of the unlicensed wireless network from the dual mode MS 10. The voice call path is set to transition to a state where voice call can be initiated. In this state, the MSC 41 transmits an assignment complete message to the MSC 41 of the CDMA core network. The voice call originating process is performed through the MSC 41, while a ringing tone is transmitted from the MSC 41 of the CDMA core network through the UNC 32 while the voice call originating process is in progress. Then, the called party's ring back tone is converted into an RTP packet by the UNC 32 of the unlicensed wireless network and transmitted to the dual mode MS 10.

Thereafter, when the called party answers the voice call, the above-described series of voice call origination processes are completed, and thus voice traffic is transmitted between the dual mode MS 10 and the UNC 32 of the unlicensed wireless network using an RTP packet. In addition, the CDMA voice call service can be provided between the caller and the called party by processing voice traffic using the PCM data through the TDM channel between the UNC 32 of the unlicensed wireless network and the MSC 41 of the CDMA core network. .

Next, a voice call call processing procedure when the dual mode MS 10 is connected to an unlicensed wireless network through the WLAN AP 31 will be described with reference to FIG. 4. When the MS 10 initiates an access procedure to the UNC 32 after connecting to the WLAN AP 31 on an unlicensed wireless network, the UNC 32 connects to the dual mode MS (connected to the WLAN AP 31). 10) establishes an IP security protocol session while performing mutual authentication process.

When the connection between the UNC 32 and the dual mode MS 10 is completed in this way, the UNC 32 performs user registration by performing mutual communication with the dual mode MS 10 according to a series of registration procedures. When the user registration is normally completed, the mobile station transitions to a state in which a mobile communication service can be used through a UMA network, that is, an unauthorized wireless network.

The UNC 32 registers the dual mode MS 10 connected through the WLAN AP 31 to the MSC 41 of the CDMA core network through an unlicensed wireless network according to a predetermined location registration procedure. When the location registration is completed normally, the dual mode MS 10 transitions to the state where voice call processing is possible.

In this state, the MSC 41 of the CDMA core network checks the location information of the called party in conjunction with the HLR when any voice call incoming request is generated, and the MSC 41 determines that the incoming dual-mode MS 10 is connected to the called party. The paging request message is transmitted to the UNC 32 of the located unlicensed wireless network, and the UNC 32 of the unlicensed wireless network is reconfigured according to the UMA-L3-CDMA protocol performing the function of the CDMA L3 layer. The paging message (UL3 Page Message) is transmitted to the incoming dual-mode MS 10 connected through the unauthorized wireless network.

When the incoming dual-mode MS 10 receives the paging message, it performs a predetermined paging operation, transitions to a voice call-enabled state, and then paging response message according to the UMA-L3-CDMA protocol (UL3 Page Response Message). Is transmitted to the UNC 32, where the UNC 32 sends a paging response message to the MSC 41 of the CDMA core network to notify that the incoming dual-mode MS 10 responded to the paging request. Done.

The MSC 41 of the CDMA core network notified that the incoming dual mode MS 10 has responded to the paging request transmits an assignment request message to the UNC 32 to voice the incoming dual mode MS 10. It is instructed to allocate a channel for call processing, and the UNC 32 uses the channel assignment information specified in the assignment request message of the MSC 41 to establish a voice line, that is, a TDM channel with the MSC 41 of the CDMA core network. After establishing the TDM channel with the MSC 41 of the CDMA core network, the WLAN AP 31 transmits a predetermined channel assignment message according to the UMA-L3-CDMA protocol that performs the function of the CDMA L3 layer. By transmitting to the incoming dual-mode MS (10) through a) will be notified that voice call data can be sent and received.

Then, the incoming dual mode MS 10 transmits an RTP packet of null traffic to the UNC 32 through the WLAN AP 31 to inform the UNC 32 that it is transmitting voice call data. The UNC 32 transmits a response message (UL3 BS Acknowledge Order Message) to the destination dual mode MS 10 indicating that voice call data arrives normally according to the UMA-L3-CDMA protocol.

Since the UNC 32 of the unlicensed wireless network has various service options in the CDMA mobile communication network, the incoming dual mode MS 10 according to the UMA-L3-CDMA protocol is used to specify the service setting for the incoming voice call. In this case, the incoming dual mode MS 10 responds to the UNC 32 according to the UMA-L3-CDMA protocol. Will be sent as a message.

In addition, when the UNC 32 receives the service connection completion message from the incoming dual mode MS 10, the UNC 32 receives the service connection completion message from the MSC 41 of the CDMA core network to the incoming dual mode MS 10 through the UNC 32 of the unlicensed wireless network. The voice call path is set to connect to the voice call in progress, and in this state, the incoming dual mode MS 10 transmits a call message (Alert With Information Message) for ring signal connection.

Then, when the incoming dual mode MS 10 user answers the call, the incoming dual mode MS 10 responds to the voice call incoming call according to the UMA-L3-CDMA protocol (UL3 Connect Order). Message) to the UNC 32 of the unlicensed wireless network, and the UNC 32 sends a Connect Message to indicate that the incoming dual-mode MS 10 has answered the incoming call. 41), a series of voice call terminating processing is completed. Accordingly, voice traffic is processed between the incoming dual mode MS 10 and the UNC 32 of the unlicensed wireless network using RTP packets. The CDMA voice call service can be provided between the sender and the called party by processing voice traffic using PCM data through the TDM channel between the UNC 32 of the MS and the MSC 41 of the CDMA core network.

In addition, the packet data call processing procedure of the unlicensed wireless network and the CDMA mobile communication network convergence service system according to the present invention will be described, which is the packet data when the dual mode MS 10 accesses the CDMA wireless network through the BTS 21. A call origination processing procedure and a packet data call origination processing procedure when the dual-mode MS 10 accesses an unauthorized wireless network through the WLAN AP 31 (in the CDMA mobile communication network, only the origination is defined for the packet data service). And the concept of an incoming call is not defined), where the packet data call origination procedure in the case where the dual mode MS 10 is connected to the CDMA wireless network through the BTS 21 is performed in a general CDMA mobile communication network. Since it is the same as the packet data service procedure in, the description thereof will be omitted.

A packet data call origination processing procedure when the dual mode MS 10 is connected to an unlicensed wireless network through the WLAN AP 31 will be described with reference to FIG. 5.

First, when the dual mode MS 10 located in a predetermined unlicensed wireless network accesses an arbitrary WLAN AP 31, the UNC 32 connects the dual mode MS 10 connected to the WLAN AP 31. Establishes an IP Security Protocol session while performing mutual authentication with.

When the connection between the UNC 32 and the dual mode MS 10 is completed in this way, the UNC 32 performs user registration by performing mutual communication with the dual mode MS 10 according to a series of registration procedures. When the user registration is normally completed, the mobile station transitions to a state in which a mobile communication service can be used through a UMA network, that is, an unauthorized wireless network.

The UNC 32 registers the dual mode MS 10 connected through the WLAN AP 31 to the MSC 41 of the CDMA core network through an unlicensed wireless network according to a predetermined location registration procedure. When the location registration is normally completed, the dual mode MS 10 transitions to a state capable of packet data call processing.

In this state, when the user of the dual mode MS 10 operates a wireless Internet access button to execute a browser or executes a specific application program for providing wireless Internet service for a packet data communication, The dual mode MS 10 requests the packet data call origination by sending a predetermined UL3 Origination Message to the UNC 32 according to the UMA-L3-CDMA protocol performing the function of the CDMA L3 layer. .

Accordingly, the UNC 32 transfers the call management related CM (Request Management) service request contents to a predetermined connection request message (Complete L3 Info Message) through the CDMA standard A1 interface to the MSC 41 of the CDMA core network. The channel MS for requesting the packet data call of the mode MS 10 is requested.

The MSC 41 of the CDMA core network, which has been requested to allocate a channel, transmits an assignment request message to the UNC 32 when the packet data call can be transmitted, thereby instructing the dual mode MS 10 to allocate the channel. In response to the channel assignment instruction of the MSC 41, the UNC 32 transmits a predetermined channel assignment message (UL3 Channel Assignment Message) according to the UMA-L3-CDMA protocol via the WLAN AP 31 to the dual mode MS ( 10), the channel for packet data call processing is allocated.

The UNC 32 of the unlicensed wireless network also sends a registration request message (A11-Registration Request Message) for establishing a packet data call connection through the CDMA standard A11 interface to the PDSN 43 of the CDMA core network that provides packet data service. The PDSN 43 performs the authentication procedure for the currently requested packet data call connection through the AAA 42, and if the authentication is successful, the authorized duration of the connection to the UNC 32, i.e. In addition, the packet data call connection request is allowed by transmitting a response message (A11-Registration Reply Message) including the packet data call connection duration information.

Thereafter, when the UNC 32 of the unlicensed wireless network succeeds in establishing a packet data call connection with the PDSN 43 of the CDMA core network, the UNC 32 transmits an assignment complete message to the MSC 41 of the CDMA core network. The state information of the mode MS 10 is transferred to a packet data call call, that is, the packet data service state, and the dual mode MS 10 transmits the PDSN 43 of the CDMA core network through the UNC 32 of the unauthorized wireless network. It is to secure a path for sending and receiving packet data to be connected.

At this time, since the packet data service is a PPP-based TCP / IP service, a PPP session establishment is required between the dual mode MS 10 and the PDSN 43. Accordingly, the UNC 32 of the unlicensed wireless network uses the UDP protocol. The PPP packet is transmitted to the dual mode MS 10 based on the dual mode MS 10 and the PDSN by transmitting the PPP packet to the PDSN 43 through the Generic Routing Encapsulation (GRE) protocol based on the CDMA standard A10 interface. A PPP session is established between 43, and a mobile IP registration procedure is performed if necessary.

After the PPP session is established between the dual mode MS 10 and the PDSN 43, the UNC 32 of the unlicensed wireless network is based on the UDP protocol between the dual mode MS 10 and the UNC 32 of the unlicensed wireless network. The dual mode MS 10 user can receive the CDMA packet data service between the PDSN 43 of the CDMA core network and the IP packet, which is the user data of the packet data call, is transmitted in both directions based on the GRE protocol. Will be.

In addition, the UNC 32 of the unlicensed wireless network sends a registration request message A11-Registration Request Message through the CDMA standard A11 interface before the packet data call connection lifetime specified above passes. By transmitting a response message (A11-Registration Reply Message) including the packet data call connection duration information from the PDSN (43) to extend the corresponding packet data call connection duration. The reason for extending the connection duration is to implement packet data call billing in the unit of time.

Furthermore, the handoff processing procedure of the unlicensed wireless network and the CDMA mobile communication network convergence service system according to the present invention will be described, which is a handoff processing procedure when the dual mode MS 10 moves from the CDMA wireless network to the unlicensed wireless network. In this case, the dual mode MS 10 may be classified into a handoff process procedure when the MS 10 moves from an unauthorized wireless network to a CDMA wireless network.

First, a handoff processing procedure when the dual mode MS 10 moves from a CDMA wireless network to an unlicensed wireless network will be described in detail with reference to FIGS. 6 and 7.

As shown in FIG. 8, an arbitrary dual-mode MS user accesses a BSC of a CDMA wireless network, that is, a source BSC 22-1, through a BTS 21 and a BTS B, and performs a voice call while exchanging CDMA wireless data. As shown in FIG. 9, when the mobile station moves to the service area of the unlicensed wireless network, that is, the service area of the wireless LAN AP 31 (WLAN AP A), the dual mode MS 10 moves to the wireless LAN AP of the unlicensed wireless network. Detecting the WLAN signal transmitted from the (31), it is connected to the unlicensed wireless network through the WLAN AP (31) performs a procedure for registering in the UNC, that is, the target UNC (32-1).

That is, when the dual mode MS 10 accesses the WLAN AP 31 that is in charge of the area in which it is located, the WLAN AP 31 assigns an IP address to the dual mode MS 10 by a method such as DHCP. Then, the dual-mode MS 10 is assigned an IP address by using the target UNC (32-) using an IP address (or a domain name is changed to an IP address through a DNS server) for a UNC of a pre-registered wireless network. 1) (step S61).

In addition, the target UNC 32-1 performs a mutual authentication procedure to secure communication between the dual-mode MS 10 that requested the connection and the IP delivery network, and establishes an IP security protocol (IPSec) session (step S62). When a mutual authentication and IP security protocol session is established between the target UNC 32-1 and the dual mode MS 10, the dual mode MS 10 uses the UMA-L3-CDMA protocol to target the UNC 32-1. The target UNC 32-1 performs a registration process in response to a request of the dual mode MS 10 (step S63). In this way, when the dual mode MS 10 is successfully registered with the target UNC 32-1, the dual mode MS 10 is in the same state as that successfully connected to the wireless network in the existing CDMA mobile communication network, that is, the existing CDMA mobile communication network. Detects the pilot signal of the BTS 21 and transitions to the same state as the idle state of monitoring the paging channel and the forward common control channel.

Thereafter, the dual-mode MS 10 receives the CDMA signal pattern received from the source BSC 22-1 according to the CDMA L3 layer protocol for handoff from the CDMA wireless network to the newly connected unlicensed wireless network. A pilot measurement message containing strength information is transmitted to a source BSC 22-1 of a CDMA wireless network. In general, a service area of a WLAN AP 31 belonging to an unlicensed wireless network is transmitted to a CDMA wireless network. Since it overlaps smaller than the cell area of the belonging BTS 21, the dual-mode MS 10 performs a handoff to the unlicensed wireless network even though the signal strength with the BTS 21 of the CDMA wireless network currently in voice communication is sufficient. Intentionally, the CDMA signal strength is reported to the source BSC 22-1 through a pilot measurement message (step S64), and the source BSC 22-1 reports the CDMA signal strength information reported from the dual-mode MS 10. ratio To thereby determine, via the MSC (41) in the CDMA core network whether to perform a handoff to the unlicensed wireless network (step S65).

At this time, if it is determined that the CDMA signal strength is weak, it is determined that handoff should be performed to an unauthorized wireless network, and the source BSC 22-1 sends a CDMA core network handoff request message (Handoff Required Message) through the CDMA standard A1 interface. The MSC 41 transmits to the MSC 41, and the MSC 41 determines that the base station to be handoff is the UNC 32 of the unlicensed wireless network by using information such as a cell list included in the received handoff request message. Accordingly, the handoff request message is transmitted to the target UNC 32, that is, the target UNC 32-1 (step S66).

In addition, the target UNC 32-1 of the unlicensed wireless network receiving the handoff request message checks whether the dual mode MS 10 to be handed off is already registered with the target UNC 32-1. ) Is already registered, the target UNC (32-1) is to send a handoff request (Handoff Request Ack Message) to the MSC (41) of the CDMA core network. By doing so, a voice call processing path is established between the target UNC 32-1 of the unlicensed wireless network and the MSC 41 of the CDMA core network, and the MSC 41 establishes a source BSC 22-1 and a target UNC 32-. 1) By transmitting a voice signal to all, the dual-mode MS 10 in handoff is simultaneously making a voice call over the CDMA wireless network and the unlicensed wireless network as illustrated in FIG. 10 (step S67).

In addition, the MSC 41 of the CDMA core network transmits a handoff command message from the target UNC 32-1 to the source BSC 22-1, and sends a handoff command message to the source BSC 22-1. The source BSC 22-1 receiving the received BTS 22-1 transmits a handoff direction message to the dual mode MS 10. In this case, an active set to which the dual mode MS 10 should communicate is transmitted to the handoff direction message. (Active Set) That is, the BTS 21 of the CDMA wireless network and the wireless LAN AP 31 of the unlicensed wireless network are loaded and transmitted (step S68).

Thereafter, the dual mode MS 10 transmits the RTP packet of null traffic to the target UNC 32-1 through the WLAN AP 31 as the handoff indication message is transmitted. -1) confirms that the voice call can be normally made through the dual mode MS 10 and the RTP packet, and in response to the handoff indication message, -1) of the source BSC 22-1 and the unlicensed wireless network of the CDMA wireless network. A handoff complete message (UL3 handoff complete message) is transmitted to the target UNC 32-1 according to each protocol and interface. At this time, although the actual voice call is performed through the source BSC 22-1 of the CDMA wireless network, the RTP packet for the voice call is also transmitted to the target UNC 32-1 of the unlicensed wireless network (step S69).

In addition, the source BSC 22-1 and the target UNC 32-1 receiving the handoff complete message are configured to exclude the existing BTS 21 from the communication target of the dual-mode MS 10 by the corresponding BTS 21. The new active set excluded in the handoff indication message is sent to the dual mode MS 10, where the target UNC 32-1 transmits the handoff indication message according to the UMA-L3-CDMA protocol. 10), the voice data received from the MSC 41 of the CDMA core network starts to be transmitted to the dual mode MS 10 as an RTP packet.

At this time, the dual mode MS 10 interrupts voice communication with the BTS 21 of the existing CDMA wireless network by applying a new active set specified in the handoff indication message as a communication target, as illustrated in FIG. The voice communication is performed with the target UNC 32-1 of the dual mode MS 10. The dual mode MS 10 transmits the compressed data of the user from the CDMA transmission routine to the RTP transmission / reception routine of the unlicensed wireless network. Therefore, voice data of the dual mode MS 10 is transmitted to the MSC 41 of the CDMA core network through the WLAN AP 31 and the target UNC 32-1 of the unlicensed wireless network, and also the dual mode MS 10. From this point in time, the RTP packet received from the target UNC 32-1 is decoded and provided to the user so as to receive the voice call service through the unlicensed wireless network (step S70).

The source BSC 22-1 transmits a handoff commencement message to the MSC 41 after the second handoff indication message is transmitted to the dual mode MS 10. The target UNC 32-1 notifies that the handoff process is completed, and if the RTP communication with the dual mode MS 10 is normally performed after sending the second handoff indication message, the target UNC 32-1 hands off to the MSC 41 of the CDMA core network. The dual mode MS 10 notifies the completion of the handoff to the target UNC 32-1 by sending a handoff complete message.

In addition, the MSC 41 of the CDMA core network sends a clear command message to release the connection with the source BSC 22-1, and the source BSC 22-1 recovers the call resource that has been allocated. Afterwards, by sending a clear complete message as a response, the voice mode of the dual mode MS 10 transmits the radio via the target UNC 32-1 of the unlicensed wireless network from the MSC 41 of the CDMA core network. Only one path remains to the dual mode MS 10 via the LAN AP 31, thus completing the handoff procedure from the CDMA wireless network to the unlicensed wireless network (step S71).

Next, a handoff processing procedure when the dual mode MS 10 moves from an unlicensed wireless network to a CDMA wireless network will be described in detail with reference to FIGS. 12 and 13.

An arbitrary dual-mode MS user connects to the UNC, or source UNC, 32-2 of an unlicensed wireless network, while making a voice call while exchanging voice data using the UMA-L3-CDMA protocol and the RTP protocol. As described above, attempting to leave the WLAN AP service area of the source UNC 32-2 causes loss of RTP packets with the source UNC 32-2 (step S121).

At this time, the source UNC 32-2 determines whether handoff to the CDMA wireless network should be performed based on whether the RTP packet is lost with the dual mode MS 10 (step S122), and the handoff is performed to the CDMA wireless network. If required, the dual mode MS 10 initiates a handoff procedure to the CDMA wireless network by transmitting a UL3 Quality Indication Message to the dual mode MS 10 according to the UMLA-L3-CDMA protocol. Will be instructed.

Accordingly, the dual mode MS 10 activates the CDMA transceiver and handoffs to the CDMA wireless network by transmitting a UL3 Handoff Required message to the source UNC 32-2 according to the UMLA-L3-CDMA protocol. In this case, the handoff request message includes a list of cells of the CDMA wireless network that can be accessed in the current state, that is, a list of BTSs 21 (step S123).

The source UNC 32-2 receiving the handoff request message from the dual mode MS 10 transmits a handoff required message to the MSC 41 of the CDMA core network through the CDMA standard A1 interface. The MSC 41 determines the handoff target BSC, that is, the target BSC 22-2 by using information such as a cell list included in the received handoff request message, and then sends the target BSC 22-2 to the target BSC 22-2. The handoff request message is transmitted (step S124).

At this time, the target BSC 22-2 of the CDMA wireless network that has received the handoff request message transmits a response message (Handoff Request Ack Message) to the MSC 41 of the CDMA core network, whereby the target BSC 22 -2) and a voice call processing path is established between the MSC 41 of the CDMA core network, where the MSC 41 transmits a voice signal to both the source UNC 32-2 and the target BSC 22-2. The dual-mode MS 10 that is in the handoff process simultaneously makes a voice call through the unlicensed wireless network and the CDMA wireless network as illustrated in FIG. 15 (step S125).

In addition, the MSC 41 of the CDMA core network transmits a handoff command message to the source UNC 32-2 by sending a handoff request response message from the target BSC 22-2 to the handoff command message. The source UNC 32-2 receives the UE3 transmits a UL3 Handoff Direction Message to the dual mode MS 10 according to the UMA-L3-CDMA protocol. The active set (10), that is, the BTS 21 information of the CDMA radio network, is to be loaded and transmitted (step S126).

Thereafter, the dual-mode MS 10 modifies the current active set in response to receiving the handoff indication message to start CDMA communication with the BTS 21 of the designated target BSC 22-2, and handoff indication message. In response to the source UNC 32-2 and the target BSC 22-2 of the CDMA wireless network, a UL3 Handoff Complete Message and a Handoff Complete Message may be sent according to respective protocols and interfaces. Will be sent.

In addition, the source UNC 32-2 and the target BSC 22-2 receiving the handoff complete message may exclude the corresponding WLAN AP 31 from the communication target of the dual mode MS 10. The new active set excluding 31 is included in the handoff indication message and transmitted back to the dual mode MS 10, where the target BSC 22-2 sends the handoff indication message to the dual mode MS 10. While transmitting the voice data received from the MSC 41 of the CDMA core network to the dual mode MS 10 via CDMA wireless communication (step S127).

At this time, the dual mode MS 10 applies the new active set specified in the handoff indication message as a communication target to exclude the existing WLAN AP 31 from the communication target, thereby exemplifying the source UNC of the unlicensed wireless network as illustrated in FIG. The voice communication is terminated with the 32-2, and the voice communication with the target BSC 22-2 of the CDMA wireless network is performed. In this case, the dual mode MS 10 performs unlicensed radio on the compressed data of the user. The voice data of the dual mode MS 10 is transferred from the RTP transmission / reception routine of the network to the CDMA transmission / reception routine. Therefore, the voice data of the dual mode MS 10 is transmitted through the BTS 21 and the target BSC 22-2 of the CDMA wireless network. 41, and the dual mode MS 10 decodes the CDMA voice data received from the target BSC 22-2 from this point and provides the user with the voice call service through the CDMA wireless network. Step S128).

The source UNC 32-2 transmits a handoff commencement message to the MSC 41 after transmitting the second handoff indication message to the dual mode MS 10. The target BSC 22-2 notifies that the off processing is completed, and if the CDMA traffic channel communication with the dual mode MS 10 is normally performed after sending the second handoff indication message, the target BSC 22-2 sends the hand to the MSC 41 of the CDMA core network. The dual mode MS 10 notifies the target BSC 22-2 that the handoff is completed by sending a handoff complete message.

In addition, the MSC 41 of the CDMA core network sends a clear command message to release the connection with the source UNC 32-2, and the source UNC 32-2 recovers the allocated call resource. Afterwards, by sending a clear complete message as a response, the voice call of the dual mode MS 10 is performed by the MSC 41 of the CDMA core network through the target BSC 22-2 of the CDMA wireless network. Only one path to the dual mode MS 10 is left via 21, and thus the handoff procedure from the unlicensed wireless network to the CDMA wireless network is completed (step S129).

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 implements a call processing and handoff processing method in an unlicensed wireless network and a CDMA mobile communication network converged service system, so that a service provider utilizes an unlicensed wireless network without changing existing CDMA core network equipment. It is possible to provide high quality CDMA mobile communication service at a lower cost than CDMA mobile communication network by extending the service area to unlicensed wireless network section, and also to guide home / business communication to mobile phone use rather than landline phone. do.

In addition, according to the call processing and handoff processing method in the unlicensed wireless network and the CDMA mobile communication network convergence service system of the present invention, the access network is changed between the unlicensed wireless network and the CDMA mobile communication network without a separate operation by the dual mode MS user. If so, the CDMA mobile communication service can be used without interruption.

Claims (26)

A call processing method in a converged service system for combining and interworking with an unauthorized wireless network and a CDMA mobile communication network, Requesting channel allocation for voice call origination of the dual mode MS from a UNC (UMA Network Controller) to a MSC of a CDMA core network when a voice call origination request of a dual mode MS located in the unlicensed wireless network is established; After the UNC allows a dual mode MS to set service options for an outgoing voice call according to the UMA-L3-CDMA protocol, a voice call path is connected from the dual mode MS to an MSC of a CDMA core network through an unauthorized wireless network. Setting process; Providing a CDMA voice call service by processing voice traffic by using an RTP packet between the dual mode MS and a UNC and using PCM data through a TDM channel between the UNC and the MSC when the called party responds. A call processing method in an unlicensed wireless network and a CDM mobile communication network convergence service system, characterized in that. The method of claim 1, The process of establishing a TDM channel for voice call origination of the dual mode MS may include an unauthorized wireless request for an outgoing request message including the other party's telephone number according to the UMA-L3-CDMA protocol performing a function of the CDMA L3 layer in the dual mode MS. Requesting voice call origination by transmitting to the UNC of the network; Requesting channel allocation for voice call origination of a dual mode MS by transmitting a call processing related CM (Request Management) service request message to the MSC of the CDMA core network through the CDMA standard A1 interface in the UNC; Instructing voice call processing channel allocation to the UNC when voice call origination is possible in the MSC, and setting a TDM channel in which the UNC becomes a voice line with the MSC of the CDMA core network according to the channel allocation instruction of the MSC. Call processing method in an unlicensed wireless network and CDM mobile communication network convergence service system, characterized in that. The method of claim 2, The setting of the TDM channel may include setting up a TDM channel represented by a circuit identification code (CIC) code between the UNC of the unlicensed wireless network and the MSC of the CDMA core network. Call processing method in service system. The method of claim 1, The process of providing the CDMA voice call service may include: performing voice call origination processing at an MSC of a CDMA core network and delivering a called party's ring back tone to a UNC of an unlicensed wireless network while the voice call originating process is in progress; Converting, from the UNC, the called party's ring back tone to an RTP packet and delivering it to the dual mode MS; When the called party answers the voice call, the voice traffic is processed by using the RTP packet between the dual mode MS and the UNC of the unlicensed wireless network, and the voice traffic is processed by using PCM data through the TDM channel between the UNC and the MSC. And providing a CDMA voice call service by performing a call processing method in an unlicensed wireless network and a CDM mobile communication network converged service system. A call processing method in a converged service system for combining and interworking with an unauthorized wireless network and a CDMA mobile communication network, Requesting paging of the dual mode MS from the MSC to the UNC when a voice call call request is generated from the MSC of the CDMA core network to the dual mode MS located in the unlicensed wireless network; Performing paging in the UNC to an incoming dual-mode MS through the unlicensed wireless network according to the UMA-L3-CDMA protocol; When the incoming dual mode MS responds to a paging request, setting up a channel for an incoming voice call between the MSC and an incoming dual mode MS in the UNC according to the voice call processing channel allocation instruction of the MSC; Voice connected from the MSC of the CDMA core network to the incoming dual-mode MS through the unlicensed wireless network after having the incoming dual-mode MS set the service option for the incoming-requested voice call according to the UMA-L3-CDMA protocol in the UNC. Establishing a call path; When the called party answers the call after transmitting the call message to the incoming dual mode MS, the RTP packet is used between the incoming dual mode MS and the UNC, and the PCM data through the TDM channel is used between the UNC and the MSC. A method for processing a call in an unlicensed wireless network and CDM mobile communication network convergence service system comprising the step of providing a CDMA voice call service by processing voice traffic. The method of claim 5, In the process of paging to an incoming dual mode MS through the UNC of the unlicensed wireless network, when a random voice call request is generated in the MSC of the CDMA core network, the dual mode located in the unlicensed wireless network is checked by checking the location information of the called party. Checking whether the incoming request is for the MS; Transmitting a paging request message from the MSC to a UNC of an unlicensed wireless network in which the incoming dual-mode MS is located when the incoming request is for a dual-mode MS located in an unlicensed wireless network; And searching for a resource table in the UNC of the unlicensed wireless network and transmitting a paging message reconfigured according to the UMA-L3-CDMA protocol performing a function of a CDMA L3 layer to a destination dual-mode MS. Call processing method in network and CDA mobile communication network convergence service system. The method of claim 5, The procedure for setting a channel for voice call reception of the incoming dual mode MS is performed by transitioning from the incoming dual mode MS to a voice call capable state by transmitting a paging response message to the UNC according to the UMA-L3-CDMA protocol. Informing the MSC of the CDMA core network that the incoming dual-mode MS has responded to the paging request through the CDMA network; Instructing a voice call processing channel allocation from the MSC to a UNC, and establishing a TDM channel that becomes a voice line with the MSC of the CDMA core network in the UNC according to the channel allocation instruction of the MSC. And a call processing method in a CDA mobile communication network convergence service system. The method of claim 5, The providing of the CDMA voice call service may include: checking whether the incoming dual mode MS answers the call after transmitting a call message for a ring signal connection to the incoming dual mode MS; When the called party answers the call, sending a call connection message to the MSC of the CDMA core network through the UNC of the unlicensed wireless network and notifying that the incoming call is answered; Provides CDMA voice call service by processing voice traffic using RTP packet between the incoming dual-mode MS and UNC of unlicensed wireless network, and processing voice traffic using PCM data through TDM channel between UNC and MSC. And a call processing method in an unlicensed wireless network and a CDM mobile communication network converged service system, comprising the steps of: The method according to claim 1 or 5, The process of establishing a voice call path through the unlicensed wireless network may include: notifying that the voice call data is transmitted by transmitting an RTP packet of null traffic to a UNC through a WLAN AP in a dual mode MS; ; Transmitting a response message to the dual mode MS indicating that voice call data normally arrives according to the UMA-L3-CDMA protocol in the UNC receiving the RTP packet from the dual mode MS; The UNC allows a dual mode MS to set service options for an outgoing or incoming voice call according to the UMA-L3-CDMA protocol, and then connects the voice from the dual mode MS to the MSC of the CDMA core network through the UNC of the unauthorized wireless network. A call processing method in an unauthorized wireless network and a CDM mobile communication network convergence service system comprising the step of establishing a call path. A call processing method in a converged service system for combining and interworking with an unauthorized wireless network and a CDMA mobile communication network, Allocating a channel for packet data call origination of the dual mode MS in conjunction with an MSC of a CDMA core network in a UNC when a packet mode call origination request of a dual mode MS located in the unlicensed wireless network is performed; Transitioning the state information of the dual-mode MS managed by the MSC to the packet data service state after establishing a packet data call connection through the CDMA standard A11 interface with the PDSN of the CDMA core network in the UNC; After establishing a PPP session between the dual mode MS and the PDSN in the UNC, a CDMA packet data service is provided to the dual mode MS by transmitting user data in a PPP packet based on a UDP protocol and a Generic Routing Encapsulation (GRE) protocol. Call processing method in an unlicensed wireless network and CDM mobile communication network convergence service system comprising a step of performing. The method of claim 10, The process of allocating a channel for packet data call origination of the dual mode MS is performed in the UMA-L3-CDMA protocol which performs a function of the CDMA L3 layer when a browser or application for a wireless Internet service is executed in the dual mode MS. Requesting packet data call origination by sending an origination request message to an UNC of an unauthorized wireless network; Requesting channel allocation for packet data call origination of a dual mode MS by transmitting a call processing related CM (Request Management) service request message to the MSC of the CDMA core network through the CDMA standard A1 interface in the UNC; In the MSC, if the packet data call can be transmitted, the channel allocation message is instructed to the UNC, and the channel allocation message is transmitted through the WLAN AP according to the UMA-L3-CDMA protocol in response to the channel allocation instruction of the MSC. And allocating a packet data call processing channel by transmitting the data to the unlicensed wireless network and the CDA mobile communication network. The method of claim 10, The process of transitioning the state information of the dual-mode MS to the packet data service state includes transmitting a registration request message for establishing a packet data call connection from the UNC of the unlicensed wireless network through the CDMA standard A11 interface to the PDSN of the CDMA core network. Steps; After the PDSN performs an authentication procedure for packet data call connection through AAA, if authentication is successful, a packet data call connection request is granted by transmitting a response message including packet data call connection duration information to the UNC. Steps; And transitioning the state information of the dual-mode MS to a packet data service state by transmitting an allocation complete message to the MSC when the packet data call connection establishment with the PDSN succeeds in the UNC. Call processing method in CDM mobile communication network convergence service system. The method of claim 10, In the process of providing a CDMA packet data service to the dual-mode MS, the PPP packet is transmitted from the UNC of the unlicensed wireless network to the dual-mode MS based on the UDP protocol, and the PPP packet is transmitted through the GRE protocol based on the CDMA standard A10 interface. Establishing a PPP session between the dual mode MS and the PDSN by transmitting to the PDSN; The dual mode is based on a UDP protocol between the dual mode MS and an UNC of an unlicensed wireless network, and transmits user data of a packet data call in a PPP packet in both directions based on a GRE protocol between the UNC and a PDSN of a CDMA core network. Providing a CDMA packet data service to an MS; and a call processing method in an unlicensed wireless network and a CDM mobile communication network convergence service system. The method of claim 10, While providing the CDMA packet data service to the dual-mode MS, a registration request message is sent back to the PDSN via the CDMA standard A11 interface before the packet data call connection duration specified by the PDSN of the CDMA core network has elapsed from the UNC of the unlicensed wireless network. And transmitting the corresponding packet data call connection duration by transmitting the unlicensed wireless network and the CDA mobile communication network. The method according to any one of claims 1, 5 or 10, When the dual mode MS located in the unlicensed wireless network accesses the UNC through the WLAN AP, establishing an IP security protocol session while performing mutual authentication with the dual mode MS in the UNC; And performing a user registration by performing mutual communication with the dual-mode MS in the UNC, and registering with the MSC of the CDMA core network through the unlicensed wireless network, and transitioning to a state where call processing is possible. Call processing method in wireless network and CDM mobile communication network convergence service system. A handoff processing method in a converged service system for combining and interworking with an unauthorized wireless network and a CDMA mobile communication network, Registering to a target UNC through a WLAN AP of the unlicensed wireless network when the dual mode MS moves to a service area of an unlicensed wireless network while accessing a source BSC of a CDMA wireless network and making a voice call; Establishing a voice call processing path between the target UNC and the MSC of the CDMA core network by transmitting a handoff request message from the source BSC to the target UNC through the MSC of the CDMA core network when the handoff is to be performed to an unlicensed wireless network; Instructing the source BSC to handoff the source BSC to allow the dual-mode MS to perform the actual voice call through the source BSC of the CDMA wireless network, but also to transmit an RTP packet to the target UNC of the unlicensed wireless network; ; And allowing the dual mode MS to perform a voice call through a target UNC of the unlicensed wireless network and then disconnecting from the source BSC to complete a handoff from the CDMA wireless network to the unlicensed wireless network. A handoff processing method in an unlicensed wireless network and a CDM mobile communication network. The method of claim 16, The registering of the dual mode MS to a target UNC of an unlicensed wireless network is performed when an arbitrary dual mode MS is moved to a service area of an unlicensed wireless network while making a voice call by accessing a source BSC through a BTS of a CDMA wireless network. Detecting a WLAN signal transmitted from a WLAN AP of the unlicensed wireless network; Accessing a target UNC using an IP address of an UNC of an unlicensed wireless network after being assigned an IP address through a WLAN AP in the dual mode MS; Performing a mutual authentication procedure and establishing an IP security protocol session in order to secure communication between the dual mode MS and the IP transport network in the target UNC; And performing a registration process by requesting registration to the target UNC using a UMA-L3-CDMA protocol that performs a function of a CDMA L3 layer in the dual-mode MS. Handoff processing method in mobile communication network convergence service system. The method of claim 16, The process of establishing a voice call processing path between the target UNC and the MSC of the CDMA core network may include a pilot measurement message including strength information on a CDMA signal pattern received from a source BSC in a dual mode MS according to the CDMA L3 layer protocol. Transmitting to the BSC; Comparing CDMA signal strength information transmitted from the dual-mode MS in the source BSC to determine whether to perform a handoff to an unlicensed wireless network; Sending a handoff request message to the MSC of the CDMA core network through the CDMA A1 interface at the source BSC if it is necessary to perform a handoff to an unlicensed wireless network; Determining, by the MSC, that the base station to be handoff is a UNC of an unlicensed wireless network by using cell list information included in a handoff request message; And establishing a voice call processing path between the target UNC and the MSC of the CDMA core network by transmitting a handoff request message to the target UNC, which is a handoff target UNC, in the MSC. Handoff processing method in mobile communication network convergence service system. The method of claim 18, The process of transmitting a pilot measurement message to the source BSC in the dual mode MS is performed when the service area of the WLAN AP belonging to the unauthorized wireless network is smaller than the cell area of the BTS belonging to the CDMA wireless network. Unlike the actual CDMA signal strength with the BTS on the call, the unlicensed wireless network and the CDM mobile communication network are characterized by reporting that the CDMA signal strength is weak by recording the CDMA signal strength in the pilot measurement message and transmitting it to the source BSC. Method of processing handoff in integrated service system. The method of claim 16, The RTP packet for voice call is also transmitted to the target UNC. The MSC of the CDMA core network transmits a voice signal to both the source BSC and the target UNC, so that the dual-mode MS simultaneously makes a voice call through the CDMA wireless network and the unlicensed wireless network. Instructing the source BSC to handoff; Instructing handoff while transmitting an active set including BTS of a CDMA wireless network to be communicated from a source BSC to a dual-mode MS and WLAN AP information of an unlicensed wireless network according to the handoff command of the MSC; In the dual mode MS, the actual voice call is performed through the source BSC, and the RTP packet for voice call is also transmitted to a target UNC of the unlicensed wireless network. Handoff processing method in converged service system. The method of claim 16, The process of completing the handoff from the CDMA wireless network to the unlicensed wireless network includes transmitting a new active set to the dual-mode MS to exclude the existing BTS from the communication mode of the dual-mode MS at the source BSC and the target UNC. Transmitting voice data received from the MSC of the CDMA core network to the dual mode MS in an RTP packet in the UNC; After applying the new active set in the dual-mode MS to exclude the existing BTS from the communication target, and converts the voice data to the RTP transmission and reception routine to transmit to the MSC through the target UNC of the unauthorized wireless network, the RTP received from the target UNC Using a CDMA voice call service over an unlicensed wireless network by decoding the packet and providing it to a user; Disconnecting the source BSC from the MSC, recovering the allocated call resource, and completing a handoff from the CDMA wireless network to the unlicensed wireless network, wherein the unlicensed wireless network and the CDA mobile communication network are converged. Method of handling handoff in service system. A handoff processing method in a converged service system for combining and interworking with an unauthorized wireless network and a CDMA mobile communication network, When a dual mode MS needs to perform a handoff to a CDMA wireless network during a voice call by accessing a source UNC of an unlicensed wireless network, a process of activating a CDMA transceiver in the dual mode MS and initiating handoff to a CDMA wireless network and; After determining the handoff target BSC in the MSC of the CDMA core network according to the handoff request of the source UNC, a voice call processing path is established between the target BSC and the MSC by transmitting a handoff request message to the target BSC which is the handoff target BSC. Process of doing; Instructing handoff from the MSC to a source UNC to perform a voice call in a dual mode MS through a source UNC of an unlicensed wireless network, but also starting CDMA communication with a target BSC of the CDMA wireless network; And causing the dual mode MS to perform a voice call through a target BSC of the CDMA wireless network and then disconnecting from the source UNC to complete a handoff from the unlicensed wireless network to the CDMA wireless network. A handoff processing method in an unlicensed wireless network and a CDM mobile communication network. The method of claim 22, The process of initiating a handoff to the CDMA wireless network may include checking whether an RTP packet loss occurs at the source UNC while the dual mode MS is connected to a source UNC of an unlicensed wireless network and making a voice call. Determining; Instructing to initiate a handoff procedure to the dual-mode MS according to the UMLA-L3-CDMA protocol, which is a CDMA L3 layer function, at the source UNC when handoff to a CDMA wireless network is to be performed; Initiating a handoff to the CDMA wireless network by activating a CDMA transceiver in the dual-mode MS and sending a handoff request message containing a cell list of the CDMA wireless networks currently accessible to the source UNC according to the UMLA-L3-CDMA protocol. And a handoff processing method in an unlicensed wireless network and a CDM mobile communication network convergence service system. The method of claim 22, The process of establishing a voice call processing path between the target BSC and the MSC may include determining a handoff target BSC using cell list information included in a handoff request message received from a source UNC in an MSC of a CDMA core network; And establishing a voice call processing path between the target BSC and the MSC of the CDMA core network by receiving the response message after transmitting the handoff request message to the target BSC determined as the handoff target BSC. A handoff processing method in an unlicensed wireless network and a CDM mobile communication network. The method of claim 22, The process of initiating CDMA communication with the target BSC of the CDMA wireless network also transmits a voice signal to both the source UNC and the target BSC from the MSC of the CDMA core network so that the dual-mode MS simultaneously makes a voice call through the unlicensed wireless network and the CDMA wireless network. Instructing the source UNC to handoff; Instructing handoff while transmitting an active set including BTS information of a CDMA wireless network to be communicated from a source UNC to a dual-mode MS according to the UMA-L3-CDMA protocol according to the handoff command of the MSC; In the dual-mode MS, the actual voice call is performed through the source UNC, and starting the CDMA communication for the voice call even with the target BSC of the CDMA wireless network. Handoff processing method in converged service system. The method of claim 22, In the process of completing the handoff from the unlicensed wireless network to the CDMA wireless network, a new active set is transmitted to the dual-mode MS to exclude the existing WLAN AP from the communication target of the dual-mode MS at the source UNC and the target BSC, Transmitting voice data received from the MSC of the CDMA core network to the dual mode MS through the CDMA wireless communication in the target BSC; After applying the new active set in the dual-mode MS to exclude the existing WLAN AP from the communication target, the voice data is converted into a CDMA transmission and reception routine to be transmitted to the target BSC of the CDMA wireless network, the CDMA voice received from the target BSC Using a voice call service over a CDMA wireless network by decoding the data and providing it to a user; Disconnecting the source UNC from the MSC, and recovering the allocated call resource to complete the handoff from the unlicensed wireless network to the CDMA wireless network. Handoff processing method in converged service system.

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