Method for transmitting data from a participant device in a session in an internet protocol (IP) system

• US 20070115961A1
• Filed: 11/18/2005
• Published: 05/24/2007
• Est. Priority Date: 11/18/2005
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Agulnik, Anatoly, Dorenbosch, Jheroen, Drozt, Peter, Burks, Janus
• Granted Patent: US 7,535,857 B2
• Time in Patent Office: Days
• US Class Current: 370/389
• CPC Class Codes: H04L 12/1822 Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 65/403 Arrangements for multi-party communication, e.g. for conferences data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15
• CPC Class Codes: H04L 65/4038 with floor control
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• 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: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation

Abstract

A method for transmitting data from a participant device in a session in an Internet Protocol (IP) system (100) is provided. The method comprises sending (405) one or more a first Real-time Transport Protocol (RTP) packet of the session to a first address. The method further comprises sending (410) one or more a first Real-time Transport Control Protocol (RTCP) packet of the session to a second address. The participant device sends the one or more a first RTP packet and the one or more a first RTCP packet.

Claims

1. A method for transmitting data from a participant device in a session in an Internet Protocol (IP) system, the method comprising:

sending at least a first Real-time Transport Protocol (RTP) packet of the session to a first address; and

sending at least a first Real-time Transport Control Protocol (RTCP) packet of the session to a second address, the at least a first RTP packet and the at least a first RTCP packet being sent by the participant device.

2. The method of claim 1, wherein the at least a first RTCP packet comprises an uplink talker arbitration message, and the second address is configured to receive the uplink talker arbitration message.

3. The method of claim 2, further comprising sending at least a second RTCP packet of the session to a third address, the at least a second RTCP packet comprising a quality feedback information and the at least a second RTCP packet being sent by the participant device.

4. The method of claim 2, further comprising sending at least a second RTCP packet of the session to the second address, the at least a second RTCP packet comprising quality feedback information and the at least a second RTCP packet being sent by the participant device.

5. The method of claim 2, further comprising sending at least one third RTCP packet comprising a downlink talker arbitration message to the first address, wherein the downlink talker arbitration message is sent by an application controller of the IP system.

6. The method of claim 5, wherein the second address is on the application controller, and the downlink talker arbitration message is sent by the application controller based on the at least one uplink arbitration message.

7. The method of claim 1, wherein the first address is a multicast address.

8. The method of claim 1, wherein the first address is a unicast address of a replicator in the IP system.

9. The method of claim 5, further comprising sending the downlink talker arbitration message to at least one participant device, the downlink talker arbitration message being sent by a replicator in the IP system, wherein the replicator hosts the first address.

10. The method of claim 2, further comprising sending the uplink talker arbitration message to a replicator and the replicator sending the uplink talker arbitration message to an application controller.

11. The method of claim 5, further comprising sending at least one other downlink talker arbitration message to at least one fourth address wherein a participant device hosts a fourth address.

12. The method of claim 1, further comprising specifying the first address and the second address to the participant device.

13. The method of claim 12, wherein the specifying comprises sending a Session Initiation Protocol (SIP) message to the participant device, the message including the first address and the second address.

14. A participant device (PD) of an Internet Protocol (IP) voice system, the participant device comprising:

a PD-processor, the PD-processor being configured to;

send at least a first Real-time Transport Protocol (RTP) packet of a session to a first address; and

send at least a first Real-time Transport Control Protocol (RTCP) packet of the session to a second address.

15. The participant device of claim 14 where the participant device is a mobile station comprising a transmitter, the transmitter being adaptively coupled to the PD-processor.

16. The participant device of claim 14, wherein the first address is a multicast address.

17. The participant device of claim 14, where the PD-processor is further configured to receive the first and the second address in a Session Initiation Protocol (SIP) message.

18. A replicator of an Internet Protocol (IP) voice system, the replicator comprising

a replicator-processor, wherein the replicator-processor is configured to:

receive a plurality of uplink packets for a session from a participant device and at least one downlink packet for the session from an application controller, the plurality of uplink packets comprising at least a first Real-time Transport Protocol (RTP) packet and at least a first Real-time Transport Control Protocol (RTCP) packet, the at least one downlink packet comprising a downlink talker arbitration message;

replicate the at least a first uplink RTP packet and the at least one downlink packet; and

send the at least a first RTCP packet to the application controller.

19. The replicator of claim 18, wherein the replicator-processor is configured to:

receive the at least a first RTCP packet and the at least one downlink packet as a unicast message.

20. The replicator of claim 19, wherein the replicator-processor is configured to replicate the at least a first RTP packet and the at least one downlink packet to a plurality of participant devices.

21. An Internet Protocol (IP) system comprising:

at least one participant device (PD), the at least one participant device comprising;

a transmitter; and

a PD-processor, the transmitter being coupled with the PD-processor, wherein the PD-processor is configured to;

send at least a first Real-time Transport Protocol (RTP) packet of a session to a first address; and

send at least a first Real-time Transport Control Protocol (RTCP) packet of the session to a second address; and

an application controller, the application controller hosting the second address, the application controller comprising;

a controller-processor, wherein the controller-processor is configured to send at least one downlink talker arbitration message to at least one of the first address and the at least one participant device.

22. The IP system of claim 21, wherein the participant device is a mobile station, wherein the controller-processor is configured to send at least one downlink talker arbitration message to at least one of the first address and the at least one participant device via a base station.

23. The IP system of claim 21, wherein the controller-processor is further configured to specify the first address and the second address to the at least one participant device.

24. The IP system of claim 21, wherein the first address is a multicast address.

25. The IP system of claim 21, further comprising:

a replicator, the replicator hosting the first address, the first address being a unicast address, the replicator comprising a replicator-processor, wherein the replicator-processor is configured to;

receive a plurality of uplink packets for the session from a participant device and at least one downlink packet for the session from the application controller, the plurality of uplink packets comprising the at least a first Real-time Transport Protocol (RTP) packet, the at least one downlink packet comprising the at least one downlink talker arbitration message; and

replicate the at least a first RTP packet and the at least one downlink packet.

26. The IP system of claim 25, wherein the plurality of uplink packets further comprises the at least a first Real-time Transport Control Protocol (RTCP) packet, wherein the replicator-processor is further configured to send the at least a first uplink RTCP packet to the application controller.