[특허]Terminal roaming operations between intergenerational wireless networks

[미국특허] Terminal roaming operations between intergenerational wireless networks 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/20
출원번호	US-0748076 (2000-12-22)
발명자 / 주소	Bharatia, Jayshree A.
출원인 / 주소	Nortel Networks Limited
대리인 / 주소	Garlick Bruce E.
인용정보	피인용 횟수 : 62 인용 특허 : 6

초록 ▼

A method for supporting operation of mobile terminal having a subscription in a packet switched wireless network within a legacy wireless network when the mobile terminal roams into the service area of the legacy network. The mobile terminal sends an attach request to a support node of the legacy wireless network. The legacy wireless network then authenticates the mobile terminal. Next, the support node of the legacy wireless network interacts with the packet switched wireless network to receive the mobile terminal's subscriber data. The home subscriber service function of the packet switched wireless network then interacts with a prior support node to cancel the wireless terminals prior location. The support node of the legacy wireless network next requests a visitor location register of the legacy wireless network to register the mobile terminal. The visitor location register of the legacy wireless network then interacts with the packet switched wireless network to register the mobile terminal within the legacy wireless network. The visitor location register of the legacy wireless network next acknowledges to the support node that the mobile terminal has been registered within the legacy wireless network. Finally, the support node of the legacy wireless network acknowledges the attach request to the mobile terminal. In another operation, a packet switched wireless network services packet switched operations for a packet switched mobile terminal.

대표청구항 ▼

1. A method for operating a packet switched wireless network to service communications for a mobile terminal that services both packet switched communications and circuit switched communications, the method comprising:receiving an attach request message from the mobile terminal by a servicing support node of the packet switched wireless network;authenticating the mobile terminal;the servicing support node of the packet switched wireless network interacting with a home subscriber service function of the packet switched wireless network to receive the mobile terminal's subscriber data;the servicing support node of the packet switched wireless network interacting with a home subscriber service function of the packet switched wireless network to update the mobile terminal's location;the servicing support node of the packet switched wireless network responding to the mobile terminal with an attach accept message;wherein the attach accept message indicates that the mobile terminal will be provided with packet switched service when the mobile terminal's subscriber data indicates that the mobile terminal subscribes to packet switched service;wherein the attach accept message indicates that the mobile terminal will be provided with circuit switched service when the mobile terminal's subscriber data indicates that the mobile terminal is not subscribed to packet switched service; andservicing communications for the mobile terminal consistently with the attach accept message. 2. The method of claim 1, wherein:the mobile terminal receives packet switched voice service when the mobile terminal's subscriber data indicates that the mobile terminal subscribes to packet switched service; andthe mobile terminal does not receive packet switched voice service when the mobile terminal's subscriber data indicates that the mobile terminal is not subscribed to packet switched service. 3. The method of claim 1, further comprising:receiving a packet switched call by the packet switched wireless network; andterminating the packet switched call to the mobile terminal via the packet switched wireless network. 4. The method of claim 3, wherein terminating the packet switched call to the mobile terminal via the packet switched wireless network comprises:a home call state control function of the packet switched wireless network receiving a call setup message;the home call state control function of the packet switched wireless network interacting with the home subscriber service function of the packet switched wireless network to determine a serving call state control function of the packet switched wireless network;the home call state control function of the packet switched wireless network forwarding the call setup message to the serving call state control function of the packet switched wireless network; andthe serving call state control function of the packet switched wireless network operating to initiate call termination to the mobile terminal. 5. A wireless network that services both packet switched communications and circuit switched communications, the wireless network comprising:a servicing support node that is operable to receive an attach request message from a mobile terminal;a home subscriber service function communicatively coupled to the servicing support node, wherein the home subscriber service function is operable to authenticate the mobile terminal by inspecting the mobile terminal's subscriber data and to respond accordingly to the servicing support node;the servicing support node of the packet switched wireless network operable to respond to the mobile terminal with an attach accept message;wherein the attach accept message indicates that the mobile terminal will be provided with packet switched service when the mobile terminal's subscriber data indicates that the mobile terminal subscribes to packet switched service;wherein the attach accept message indicates that the mobile terminal will be provided with circuit switched service when t he mobile terminal's subscriber data indicates that the mobile terminal is not subscribed to packet switched service; andthe servicing support node servicing communications for the mobile terminal consistently with the attach accept message. 6. The wireless network of claim 5, wherein:the mobile terminal receives packet switched voice service when the mobile terminal's subscriber data indicates that the mobile terminal subscribes to packet switched service; andthe mobile terminal does not receive packet switched voice service when the mobile temilnal's subscriber data indicates that the mobile terminal is not subscribed to packet switched services. 7. The wireless network of claim 5, further comprising:a home call state control function of the packet switched wireless network that is operable to receive a call setup message corresponding to the mobile terminal;the home call state control function of the packet switched wireless network operable to interact with the home subscriber service function of the packet switched wireless network to determine a serving call state control function of the packet switched wireless network;the home call state control function of the packet switched wireless network operable to forward the call setup message to the serving call state control function of the packet switched wireless network; andthe serving call state control function of the packet switched winless network operable to initiate call termination to the mobile terminal. 8. A method for operating a packet switched wireless network to service a registration request received from a mobile terminal, the method comprising:receiving a registration request from the mobile terminal by a servicing support node of the packet switched wireless network, the registration request requesting registration of packet switched services with the packet switched wireless network;the servicing support node of the packet switched wireless network interacting with a home subscriber service function and a call state control function of to wireless network to determine; based upon the mobile terminal's subscriber data, whether packet switched services for the mobile terminal should be registered;the support node of the packet switched wireless network responding to the mobile terminal with a registration confirmation message;wherein the registration confirmation message indicates that to registration request has been accepted when the mobile terminal's subscriber data indicates that to mobile terminal subscribes to packet switched service; andwherein the registration confirmation message indicates that the registration request has been denied when the mobile terminal's subscriber data indicates that the mobile terminal is not subscribed to packet switched service. 9. The method of claim 8, wherein:the mobile terminal receives packet switched voice service when the mobile terminal's subscriber data indicates that the mobile terminal subscribes to packet switched service; andthe mobile terminal does not receive packet switched voice service when the mobile terminal's subscriber data indicates that the mobile terminal is not subscribed to packet switched service. 10. The method of claim 8, further comprising:receiving a packet switched call by the packet switched wireless network; andterminating the packet switched call to the mobile terminal via the packet switched wireless network. 11. The method of claim 10, wherein terminating the packet switched call to the mobile terminal via the packet switched wireless network comprises:a home call state control function of the packet switched wireless network receiving a call setup message;the home call state control function of the packet switched wireless network interacting with the home subscriber service function of the packet switched wireless network to determine a serving call state control function of the packet switched wireless network;the home call state control function of the packet switched wireless n etwork forwarding the call setup message to the serving call state control function of the packet switched wireless network; andthe serving call state control function of the packet switched wireless network operating to initiate call termination to the mobile terminal.

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[미국특허] Terminal roaming operations between intergenerational wireless networks 원문보기

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[미국특허] Terminal roaming operations between intergenerational wireless networks 원문보기

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