METHOD AND APPARATUS FOR PROVIDING MULTICAST SERVICE AND METHOD AND APPARATUS FOR ALLOCATING MULTICAST SERVICE RESOURCE IN TERMINAL-TO-TERMINAL DIRECT COMMUNICATION

• US 20160112345A1
• Filed: 09/24/2015
• Published: 04/21/2016
• Est. Priority Date: 10/20/2014
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: KIM, Dae Ik, SHIN, Yeon Seung, NA, Jeehyeon, KIM, Hyung-Sub
• Granted Patent: US 10,057,188 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 47/806 Broadcast or multicast traffic
• CPC Class Codes: H04W 4/025 using location based information parameters
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 76/40 for selective distribution or broadcast

Abstract

A method of providing a multicast service is provided by a terminal in a terminal-to-terminal direct communication. The terminal transmits a service start request message requesting a start of a multicast service to a multicast server, and receives a service start response message including a result of permitting a start request from the multicast server. The terminal receives, via a base station, resource information of a resource which a multicast coordinator allocates to the multicast service in accordance with a request of the multicast server, and transmits multicast service data based on the resource information.

Claims

1. A method of providing a multicast service by a terminal in a terminal-to-terminal direct communication, the method comprising:

transmitting a service start request message requesting a start of a multicast service to a multicast server;

receiving a service start response message including a result of permitting a start request from the multicast server;

receiving, via a base station, resource information of a resource which a multicast coordinator allocates to the multicast service in accordance with a request of the multicast server; and

transmitting multicast service data based on the resource information.

2. The method of claim 1, wherein the service start request message includes an identifier of the multicast service and location information of the terminal.

3. The method of claim 2, wherein the service start request message further includes quality of service (QoS) information for the multicast service.

4. The method of claim 1, further comprising:

reporting a status of the allocated resource to the multicast coordinator via the base station; and

receiving changed resource information for the multicast service from the multicast coordinator via the base station.

5. The method of claim 1, further comprising:

transmitting a multicast subscribe request message to the multicast server before transmitting the service start request message; and

receiving a multicast subscribe response message including a result of the multicast subscribe request from the multicast server.

6. The method of claim 5, wherein the multicast subscribe request message includes a service type of the multicast service, and

wherein the service type indicates whether the multicast service is provided in a multicast scheme or a broadcast scheme.

7. The method of claim 6, wherein the multicast subscribe request message includes an identifier of the terminal and mobility degree of the terminal.

8. A method of allocating a resource for a multicast service by a multicast coordinator in a terminal-to-terminal direct communication, the method comprising:

receiving from a multicast server a multicast session start request message requesting resource allocation for a multicast service in accordance with a request of a terminal starting the multicast service;

allocating a resource to the multicast service;

storing resource information of the allocated resource and information on the multicast service; and

transmitting a resource allocation request message including the resource information to a plurality of base stations.

9. The method of claim 8, wherein the resource information is transmitted to the terminal through at least one of the plurality of base stations.

10. The method of claim 8, wherein the multicast session start request message includes an identifier of the multicast service and an identifier of the terminal.

11. The method of claim 10, wherein the multicast session start request message further includes quality of service (QoS) information for the multicast service and location information of the terminal.

12. The method of claim 8, wherein the resource allocation request message further includes an identifier of the multicast service.

13. The method of claim 12, wherein the resource allocation request message further includes QoS information for the multicast service and service area information of the multicast service.

14. An apparatus for providing a multicast service in a terminal-to-terminal direct communication, the apparatus comprising:

a processor configured to generate a service start request message requesting a start of a multicast service; and

a transceiver configured to transmit the service start request message to a multicast server, to receive a service start response message including a result of permitting a start request from the multicast server, to receive, via a base station, resource information of a resource which a multicast coordinator allocates to the multicast service in accordance with a request of the multicast server, and to transmit multicast service data based on the resource information.

15. The apparatus of claim 14, wherein the service start request message includes an identifier of the multicast service and location information of the terminal.

16. The apparatus of claim 14, wherein the processor generates a multicast subscribe request message including information on a service type of the multicast service,

wherein the transceiver transmits the multicast subscribe request message to the multicast server and receives a multicast subscribe response message including a result of the multicast subscribe request from the multicast server, and

wherein the service type indicates whether the multicast service is provided in a multicast scheme or a broadcast scheme.

17. An apparatus for allocating a resource for a multicast service in a terminal-to-terminal direct communication, the apparatus comprising:

a database;

a processor configured to allocate a resource to a multicast service in response to a multicast session start request message that is transmitted by a multicast server in accordance with a request of a terminal starting the multicast service, and store resource information of the allocated resource and information on the multicast service in the database; and

a transceiver configured to receive the multicast session start request message and to transmit a resource allocation request message including the resource information to a plurality of base stations.

18. The apparatus of claim 17, wherein the resource information is transmitted to the terminal through at least one of the plurality of base stations.

19. The apparatus of claim 17, wherein the multicast session start request message includes quality of service (QoS) information for the multicast service and location information of the terminal.

20. The apparatus of claim 17, wherein the resource allocation request message further includes QoS information for the multicast service and service area information of the multicast service.