Method and telecommunications arrangement for transferring media data having differing media types via a network sensitive to quality of service

Patent metadata

Field	Value
Publication number	US-10749922-B2
Application number	US-201816196643-A
Country	US
Kind code	B2
Filing date	Nov 20, 2018
Priority date	Dec 10, 2013
Publication date	Aug 18, 2020
Grant date	Aug 18, 2020

Abstract

A telecommunication system and a method for transferring media data from a first client over a QoS-sensitive network to a second client. The system and method can permit media data, which contain a first media type with a first traffic class and a second media type with a second traffic class to be bundled by the first client into second packets. In each second packet, the traffic class for each media type is marked in layer 4 and/or layer 5. The second packets can be transmitted toward the second client. Either before or during the transfer to the network, the second packets can be unbundled using the markings in layer 4 and/or layer 5 and then bundled into first packets, each of which has only one of the traffic classes. At least some of the first packets can then be transmitted over the network to the second client.

First claim

The invention claimed is:

1. A telecommunication apparatus comprising:
a marking device positionable between a first client and a second client in a quality of service-sensitive (“QoS-sensitive”) network, the marking device comprising a processor;
the marking device configured to receive second data packets that includes media data that is bundled to include a first media type with a first traffic class and a second media type with a second traffic class from the first client and, in response to receiving the second data packets from the first client, marking, in each second data packet, the traffic class for each media type in at least one of layer 4 of a real-time protocol (RTP) and layer 5 of the RTP and transmit the marked second data packets in a direction toward the second client so that, either before or during a transfer of the marked second data packets to the QoS-sensitive network, the marked second data packets are unbundleable via the markings in at least one of layer 4 and layer 5 of the RTP for bundling into first data packets for transmission to the second client.

2. The telecommunication apparatus of claim 1 wherein the first client is a real-time communication (“RTC”) client.

3. The telecommunication apparatus of claim 2 wherein the second client is a RTC client.

4. The telecommunication apparatus of claim 3 , comprising the first RTC client and/or the second RTC client and wherein the telecommunication apparatus is configured as a telecommunication system.

5. The telecommunication apparatus of claim 1 , wherein the marking device is assigned to a router connected between the first client and the second client.

6. The telecommunication apparatus of claim 1 , wherein the marking device is a processor of a network gateway device.

7. The telecommunication apparatus of claim 1 , wherein the marking device is assigned to a proxy server connected between the first RTC client and the second RTC client.

8. The telecommunication apparatus of claim 1 , wherein the second data packets contain RTP elements and the marking device adds the markings by extending headers of the RTP elements of the second data packets and information providing a list of the markings is generated in the header extension.

9. The telecommunication apparatus of claim 1 , wherein the marking device is configured to mark the traffic class for each media type in at least one of layer 4 of the RTP and layer 5 of the RTP by changing markings in the second data packets in layer 2 of the RTP and/or layer 3 of the RTP that refer to the respective traffic classes to reference markings that are present in layer 4 of the RTP and/or layer 5 of the RTP.

10. The telecommunication system of claim 7 , wherein the marking device is configured to mark the second data packets with a Differentiated Services Code Point (DSCP) value that corresponds to a worst value of media types contained in them.

11. A computer-implemented method for transferring media data from a first client over a quality of service-sensitive (“QoS-sensitive”) network using a real-time protocol (RTP) to a second client, wherein a quality of service is based on different traffic classes and wherein the media data contain a first media type with a first traffic class and a second media type with a second traffic class, comprising:
marking, in each second packet of a plurality of second packets, a traffic class for each media type in layer 4 of the RTP and layer 5 of the RTP,
either before or during a transfer of the second packets to the network, unbundling the second packets using the markings and then bundling the second packets into first packets, each of which has only one of the first traffic class and the second traffic class, and
transmitting the first packets over the network to the second client.

12. The method of claim 11 , wherein the second packets are unbundled and the first packets are bundled in a network gateway device.

13. The method of claim 11 , wherein the second packets contain RTP protocol elements and the markings are added by extending headers of the RTP protocol elements of the second packets, wherein a list of the occurring markings is generated in the header extension.

14. The method of claim 11 , wherein the marking in each second packet comprises changing markings in the second packets in layer 2 of RTP and/or layer 3 of RTP so that the markings are in layer 4 of RTP and/or layer 5 of RTP.

15. The method of claim 11 , wherein the marking comprises marking each second packet with a Differentiated Services Code Point (DSCP) value that corresponds to a worst value of media types contained in them.

16. The method of claim 11 , further comprising using signaling to negotiate whether port multiplexing and/or service multiplexing is to take place.

17. The method of claim 11 , wherein the first client is a real-time communication (“RTC”) client, the method also comprising:
receiving the second packets from the first client.

18. The method of claim 17 , wherein the second client is a real-time communication (“RTC,”) client.

19. A non-transitory computer readable medium having a program stored thereon that defines a method that is performed by a computer device that executes the program, the method comprising:
in response to receiving second data packets that include media data that is bundled to include a first media type with a first traffic class and a second media type with a second traffic class, marking, in each second data packet, the traffic class for each media type in layer 4 of the real-time protocol (RTP) and/or layer 5 of the RTP; and
transmitting the marked second data packets so that, either before or during a transfer of the marked second data packets to a quality of service-sensitive network, the marked second data packets are unbundleable via the markings for bundling into first data packets for transmission via the network.

20. The non-transitory computer readable medium of claim 19 , wherein the second data packets contain RIP elements and the markings are added by extending headers of the RTP elements of the second data packets.

Assignees

• Unify Gmbh & Co Kg
• Ringcentral Inc

Inventors

• Klaghofer Karl
• Totzke Jurgen
• Tietsch Michael

Classifications

• H04L65/80 Primary

  Responding to QoS · CPC title

• H04L65/1104

  Session initiation protocol [SIP] · CPC title

• H04L65/65

  Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP] · CPC title

• H04M7/006

  Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer (H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42) · CPC title

• H04L69/326

  in the transport layer [OSI layer 4] (H04L69/16 takes precedence) · CPC title