METHOD, APPARATUS, AND SYSTEM FOR NOTIFYING REAL-TIME STREAMING PROTOCOL EVENTS

• US 20100121976A1
• Filed: 01/20/2010
• Published: 05/13/2010
• Est. Priority Date: 07/20/2007
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Lei, Xiaosong, Qi, Baojian, Wang, Peng
• Granted Patent: US 8,667,124 B2
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04N 21/2387 Stream processing in response to a playback request from an end-user, e.g. for trick-play
• CPC Class Codes: H04N 21/6336 directed to decoder
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• CPC Class Codes: H04N 21/6581 Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application

Abstract

A method for notifying a Real-Time Streaming Protocol (RTSP) event includes: monitoring an event state; and sending a notification indicative of a change of the event state to an event state receiving entity if detecting the change of the event state. A computer program and a computer-readable storage medium are provided to enable a computer to perform the steps of the method for notifying an RTSP event. An apparatus for notifying an RTSP event includes: an event state monitoring unit, adapted to monitor an event state; and a message sending unit, adapted to send a notification indicative of a change of the event state when the event state monitoring unit detects the change of the event state. A system for notifying an RTSP event includes the RTSP event notifying apparatus. Through the technical solution herein, the event state is notified to the corresponding network entity when the event state changes.

Claims

1. A method for notifying a Real-Time Streaming Protocol, RTSP, event, comprising:

monitoring an event state; and

sending a notification indicative of a change of the event state to an event state receiving entity if detecting the change of the event state.

2. The method according to claim 1, wherein before monitoring the event state, the method further comprises:

receiving a request message which requests to monitor the event state.

3. The method according to claim 2, wherein before sending the notification to the event state receiving entity, the method further comprises:

judging whether the request message includes information about the event state receiving entity; and

if the request message includes the information about the event state receiving entity, sending the notification to the event state receiving entity according to the information;

or

if the request message does not include the information about the event state receiving entity, sending the notification to the event state receiving entity according to one of a preset local policy and a stored configuration file.

4. The method according to claim 2, wherein after receiving the request message, the method further comprises:

sending information about a current state of the event to the event state receiving entity.

5. The method of claim 2, wherein:

the notification and the request message are RTSP-based messages.

6. The method according to claim 1, wherein the monitoring the event state comprises:

monitoring the event state according to one of a preset local policy and a stored configuration file.

7. The method according to claim 1, wherein comprises one of:

if the event occurs at time of monitoring the event state, the notification carries information about occurrence of the event; and

if the event occurs before start of monitoring the event state and the event state has changed, the notification carries information about the changed state of the event.

8. The method of claim 7, wherein:

after receiving the notification that includes the information about the occurrence of the event, the event state receiving entity performs operations according to one of a preset local policy and a stored configuration file.

9. The method according to claim 7, wherein:

after receiving the notification that includes the information about the changed state of the event, the event state receiving entity updates the corresponding event state to the changed state.

10. The method according to claim 1, wherein:

the event is a contingent event compliant with preset conditions, or a state of playing streaming media, or a network state.

11. The method according to claim 1, wherein the monitoring the event state comprises:

monitoring occurrence of a contingent event.

12. The method according to claim 1, wherein the monitoring the event state comprises:

monitoring a change of a state of a continuous event.

13. The method according to claim 12, wherein:

the notification is adapted to notify the changed state of the continuous event to the event state receiving entity.

14. The method according to claim 1, comprising:

monitoring, by a client, the event state; and

sending, by the client, the notification indicative of the change of the event state to the event state receiving entity if detecting the change of the event state, wherein the event state receiving entity is a server.

15. The method according to claim 1, comprising:

monitoring, by a server, the event state; and

sending, by the server, the notification indicative of the change of the event state to the event state receiving entity if detecting the change of the event state, wherein the event state receiving entity is a client.

16. An apparatus for notifying a Real-Time Streaming Protocol, RTSP, event, comprising:

an event state monitoring unit, adapted to monitor an event state; and

a message sending unit, adapted to send a notification indicative of a change of the event state when the event state monitoring unit detects the change of the event state.

17. The apparatus according to claim 16, further comprising a message receiving unit, wherein:

the message receiving unit is adapted to receive a request message which requests to monitor the event state; and

the event state monitoring unit is further adapted to monitor the event state after the message receiving unit receives the request message.

18. The apparatus according to claim 16, wherein:

the message sending unit is further adapted to send information about a current state of the event after the message receiving unit receives the request message.

19. A system for notifying a Real-Time Streaming Protocol, RTSP, event, comprising:

an RTSP event notifying apparatus, adapted to monitor an event state, and send a notification indicative of a change of the event state upon the change of the event state; and

an RTSP event notification receiving apparatus, adapted to receive the notification.

20. The system according to claim 19, further comprising an RTSP event monitoring requesting apparatus, wherein:

the RTSP event monitoring requesting apparatus is adapted to send a request message which requests to monitor the event state; and

the RTSP event notifying apparatus is further adapted to monitor the event state after receiving the request message.