Method and apparatus for discovering internet protocol television service (IPTV) provider and IPTV service by using session initiation protocol
First Claim
Patent Images
1. A method of receiving information about one or more service providers in a network comprising a first entity and a second entity, the method comprising:
- receiving, by the first entity, an HTTP request message requesting information about one or more Internet Protocol Television (IPTV) service providers from a terminal;
transmitting, by the first entity, a Session Initiation Protocol (SIP) SUBSCRIBE message requesting the information about the one or more IPTV service providers to the second entity;
in response to the SIP SUBSCRIBE message, receiving, by the first entity, a SIP NOTIFY message including the information about the one or more service providers; and
transmitting, by the first entity, an HTTP response message providing the information about the one or more IPTV service providers providing a service to the terminal,wherein the service comprises an Internet Protocol Television (IPTV) service,wherein the SIP SUBSCRIBE message comprises a first header requesting the information about the one or more IPTV service providers providing the service, andwherein the SIP NOTIFY message comprises a second header for providing the information about the one or more IPTV service providers providing the service.
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Abstract
Provided are a method and apparatus by which a first entity receives information about one or more Internet Protocol Television (IPTV) service providers or information about one or more IPTV services from a second entity by using a Session Initiation Protocol (SIP) message.
42 Citations
20 Claims
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1. A method of receiving information about one or more service providers in a network comprising a first entity and a second entity, the method comprising:
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receiving, by the first entity, an HTTP request message requesting information about one or more Internet Protocol Television (IPTV) service providers from a terminal; transmitting, by the first entity, a Session Initiation Protocol (SIP) SUBSCRIBE message requesting the information about the one or more IPTV service providers to the second entity; in response to the SIP SUBSCRIBE message, receiving, by the first entity, a SIP NOTIFY message including the information about the one or more service providers; and transmitting, by the first entity, an HTTP response message providing the information about the one or more IPTV service providers providing a service to the terminal, wherein the service comprises an Internet Protocol Television (IPTV) service, wherein the SIP SUBSCRIBE message comprises a first header requesting the information about the one or more IPTV service providers providing the service, and wherein the SIP NOTIFY message comprises a second header for providing the information about the one or more IPTV service providers providing the service. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A first entity for receiving information about one or more service providers in a network, the first entity comprising:
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a message transmitting unit transmitting a SIP SUBSCRIBE message requesting information about one or more IPTV service providers to a second entity; a message receiving unit receiving a SIP NOTIFY message including information about the one or more service providers, in response to the SIP SUBSCRIBE message; and an information sharing unit receiving an HTTP request message requesting information about one or more IPTV service providers from a terminal and transmitting an HTTP response message providing the information about the one or more IPTV service providers providing a service to the terminal; wherein the service comprises an Internet Protocol Television (IPTV) service, wherein the SIP SUBSCRIBE message comprises a first header requesting the information about the one or more IPTV service providers providing the service, and wherein the SIP NOTIFY message comprises an second header for providing the information about the one or more IPTV service providers.
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17. A terminal for receiving information about one or more service providers in a network, the terminal comprising:
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a message transmitting unit transmitting a Hypertext Transfer Protocol (HTTP) request message requesting information about one or more Internet Protocol Television (IPTV) service providers to a first entity; and a message receiving unit receiving an HTTP response message providing the information about the one or more IPTV service providers providing a service from the first entity, in response to the request message, wherein the service comprises an IPTV service, wherein a Session Initiation Protocol (SIP) SUBSCRIBE message requesting the information about the one or more IPTV service providers according to the HTTP request message is transmitted from the first entity, and wherein the HTTP response message is obtained from a SIP NOTIFY message including information about the one or more IPTV service providers; wherein the SIP SUBSCRIBE message comprises a first header requesting the information about the one or more IPTV service providers providing the service, and wherein the SIP NOTIFY message comprises a second header for providing the information about the one or more IPTV service providers providing the service. - View Dependent Claims (18, 19)
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20. A method of receiving information about one or more service providers in a network, by a terminal, the method comprising:
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transmitting a Hypertext Transfer Protocol (HTTP) request message requesting information about one or more Internet Protocol Television (IPTV) service providers to a first entity; receiving an HTTP response message providing the information about the one or more IPTV service providers providing a service from the first entity, in response to the request message; wherein the service comprises an IPTV service, wherein a Session Initiation Protocol (SIP) SUBSCRIBE message requesting the information about the one or more IPTV service providers according to the HTTP request message is transmitted from the first entity, wherein the HTTP response message is obtained from a SIP NOTIFY message including information about the one or more IPTV service providers; wherein the SIP SUBSCRIBE message comprises a first header requesting the information about the one or more IPTV service providers providing the service; and wherein the SIP NOTIFY message comprises a second header for providing the information about the one or more IPTV service providers providing the service.
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Specification