Service-based discovery in networks
Systems, methods, and instrumentalities may implement service-based discovery in a network, such as a 3GPP or 3GPP2 network. A Discovery Server may be used to query and find services offered by the network or by entities that interface with the network. Situational context information or policy information, or both, may be communicated to the discovery server so that the Discovery Server can provide context-aware and policy-based discovery services. The Discovery Server may be used to control which of the entities that interface with the network can discover one another. The Discovery Server may support queries based on, for example, the type of MTC entity, the type of services hosted on the entity, the availability times of the entity, types of protocols supported, levels of Quality of Service (QoS) supported, and MTC-IWF services.
1 . A method implemented by a server, the method comprising:
receiving a registration request, wherein the registration request is related to creating a discovery record;
sending a response to the registration request indicating that the discovery record was created;
receiving an update request related to the discovery record;
sending a response to the update request indicating that the discovery record was updated;
receiving a services request from a wireless receive transmit unit (WTRU), wherein the services request includes service provider information, wherein the discovery record is associated with the services request for the WTRU;
sending a request for context information about the WTRU;
receiving context information about the WTRU;
matching information included in the services request with information in one or more discovery records, wherein the information that matches is the service provider information; and
sending a response to the services request based on the information that matches and the context information about the WTRU.
2 . The method of claim 1 , wherein the registration request or update request further includes security credentials, a list of supported service types, or a network address.
3 . The method of claim 1 , wherein the context information about the WTRU includes location information about the WTRU.
4 . The method of claim 1 , further comprising receiving a request to delete the record of the server, and sending a response to the request to delete indicating that the discovery record has been deleted.
5 . The method of claim 1 , wherein the discovery record includes information that identifies a service that is offered by a services server, contact information for the services server, schedule information that indicates when the service is available, or a service provider identifier.
6 . A server, the server comprising:
a processor operatively connected to a transceiver, the processor and transceiver configured to receive a registration request, wherein the registration request is related to creating a discovery record;
the processor and transceiver configured to send a response to the registration request indicating that the discovery record was created;
the processor and transceiver configured to receive an update request related to the discovery record;
the processor and transceiver configured to send a response to the update request indicating that the discovery record was updated;
the processor and transceiver configured to receive a services request from a wireless receive transmit unit (WTRU), wherein the services request includes service provider information;
the processor and transceiver configured to send a request for context information about the WTRU;
the processor and transceiver configured to receive context information about the WTRU;
the processor and transceiver configured to match information included in the services request with information in one or more discovery records, wherein the information that matches is the service provider information; and
the processor and transceiver configured to send a response to the services request based on the information that matches and the context information about the WTRU.
7 . The server of claim 6 , wherein the registration request or update request further includes security credentials, a list of supported service types, or a network address.
8 . The server of claim 6 , wherein the context information about the WTRU includes location information about the WTRU.
9 . The server of claim 6 , wherein the processor and transceiver are configured to receive a request to delete the discovery record, and sending a response to the request to delete indicating that the discovery record has been deleted.
10 . The server of claim 6 , wherein the discovery record includes information that identifies a service that is offered by a services server, contact information for the services server, schedule information that indicates when the service is available, or a service provider identifier.
11 . A method implemented by a wireless transmit receive unit (WTRU), the method comprising:
sending a services request to a server,
wherein the services request includes service provider information,
wherein the sending of the services request prompts the server to determine the context information for the WTRU,
wherein the sending of the services request further prompts the server to match information included in the services request,
wherein the information that matches is the service provider information, and
wherein the services request further prompts the server to determine a response message to the services request based on the information that matches and the context information for the WTRU; and
receiving the response message to the services request.
12 . The method of claim 11 , wherein the response includes one or more network addresses for a services server.
13 . The method of claim 11 , wherein the context information for the WTRU is location information of the WTRU.
14 . The method of claim 11 , wherein the matched information was previously created at the server by a registration request and subsequently updated at the server.
15 . A wireless transmit receive unit (WTRU), the WTRU comprising:
a processor operatively connected to a transceiver, the processor and transceiver configured to send a services request to a server,
wherein the services request includes service provider information,
wherein the sending of the services request prompts the server to determine the context information for the WTRU,
wherein the sending of the services request further prompts the server to match information included in the services request,
wherein the information that matches is the service provider information, and
wherein the services request further prompts the server to determine a response message to the services request based on the information that matches and the context information for the WTRU; and
the processor and transceiver configured to receive the response message to the services request.
16 . The WTRU of claim 15 , wherein the response includes one or more network addresses for a services server.
17 . The WTRU of claim 15 , wherein the context information for the WTRU is location information of the WTRU.
18 . The WTRU of claim 15 , wherein the matched information was previously created at the server by a registration request and subsequently updated at the server.