Method and apparatus for securing quality of service of data communication

• US 20070263575A1
• Filed: 11/16/2006
• Published: 11/15/2007
• Est. Priority Date: 05/11/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choe, Yun-ju
• Granted Patent: US 8,379,595 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 36/0044 of quality context information
• CPC Class Codes: H04W 36/0066 of control information between different types of networks in order to establish a new radio link in the target network
• CPC Class Codes: H04W 36/26 by agreed or negotiated communication parameters
• CPC Class Codes: H04W 36/38 by fixed network equipment

Abstract

A method and apparatus for securing a quality of service (QoS) of data communication is provided. The method of securing the QoS of data being received by a mobile terminal at a reception side that performs a handover from a first network to a second network comprises generating a packet including information about the second network, transmitting the packet to a transmission side, and selectively performing the handover according to whether a packet including information in response to the packet is received. When a reception side performs a handover, a transmission side can be informed of information about the second network via the exchange of packets between the reception side and the transmission side, thereby securing a QoS of the data transmission.

Claims

1. A method of securing a quality of service (QoS) of data being received by a mobile terminal at a reception side that performs a handover from a first network to a second network, the method comprising:

generating a packet including information about the second network;

transmitting the packet to a transmission side; and

selectively performing the handover according to whether a packet including information in response to the packet is received.

2. The method of claim 1, wherein the information about the second network is information about a data transmission rate of the second network.

3. The method of claim 1, wherein the packet including the information about the second network is a real-time transport control protocol (RTCP) packet.

4. The method of claim 3, wherein the generating of the packet comprises:

inserting information about the second network into a feedback control information field of an immediate feedback mode RTCP packet.

21. A computer readable recording medium storing a computer readable program for executing a method of claim 1.

5. An apparatus for securing a QoS of data being received by a mobile terminal at a reception side that performs a handover from a first network to a second network, the apparatus comprising:

a network information generator arranged to generate a packet including information about the second network;

a network information transmitter arranged to transmit the packet to a transmission side; and

a handover performing unit to selectively perform the handover according to whether a packet including information in response to the packet is received.

6. The apparatus of claim 5, wherein the information about the second network is information about a data transmission rate of the second network.

7. The apparatus of claim 5, wherein the packet including the information about the second network is an RTCP packet.

8. A method of securing a QoS of data performed by a device that is transmitting data to a mobile terminal that performs a handover from a first network to a second network, the method comprising:

receiving a packet including information about the second network from the mobile terminal; and

converting data to be transmitted to the mobile terminal according to the information about the second network included in the packet.

9. The method of claim 8, wherein the converting of the data comprises converting the rate of compression or the size of the data to be transmitted to the mobile terminal.

10. The method of claim 8, further comprising:

generating a packet including response information informing that the data transmission is prepared based on the information about the second network; and

transmitting the packet to the mobile terminal.

11. The method of claim 10, wherein the packet is a real-time transport protocol (RTP) packet.

12. The method of claim 11, wherein the generating of the packet comprises:

setting a marker bit of the RTP packet to “

1”

.

13. The method of claim 12, wherein the RTP packets in which the marker bit is set to “

1”

are plural.

14. The method of claim 10, wherein the response information is information about a data transmission rate of the second network.

15. The method of claim 14, wherein the packet is a RTCP packet.

16. The method of claim 15, wherein the generating of the packet comprises:

inserting information about the second network into a feedback control information field of an immediate feedback mode RTCP packet.

22. A computer readable recording medium storing a computer readable program for executing a method of claim 8.

17. An apparatus for securing a QoS of data using a device that is transmitting data to a mobile terminal that performs a handover from a first network to a second network, the method comprising:

a network information reception unit arranged to receive a packet including information about the second network from the mobile terminal; and

a data converter arranged to convert data to be transmitted to the mobile terminal according to the information about the second network included in the packet.

18. The apparatus of claim 17, further comprising:

a response information generator arranged to generate an RTP packet including response information informing that the data transmission is prepared based on the information about the second network; and

a response information transmitter arranged to transmit the packet to the mobile terminal.

19. The apparatus of claim 18, wherein the response information generator sets a marker bit of the RTP packet to “

1”

to generate the RTP packet.

20. The apparatus of claim 18, wherein the response information generator generates the RTP packet including the response information.

23. A method of securing a quality of service (QoS) when a mobile terminal moves between service areas provided two wireless communication networks having a switch system and different data transmission rates, comprising:

detecting, at the mobile terminal, a handover from the first network to the second network, when the mobile terminal moves from a service area provided by a first network to a service area provided by a second network,;

generating, at the mobile terminal, a packet including information about the second network;

transmitting, at the mobile terminal, the packet including information about the second network to the switch system; and

selectively performing, at the mobile terminal, the handover from the first network to the second network upon receipt of a packet including response information from the switch system.

24. The method of claim 23, wherein the information about the second network is information about a data transmission rate of the second network, and the packet including information about the second network is a real-time transport control protocol (RTCP) packet.

25. The method of claim 23, wherein the packet includes information about the second network inserted into a feedback control information field of an immediate feedback mode RTCP packet.

26. The method of claim 23, wherein, upon receipt of the packet including information about the second network, the switch system converts data to be transmitted to the mobile terminal according to the second network based on the information included in the packet, generates a packet including response information informing that data conversion is prepared based on the information about the second network, and transmits the packet to the mobile terminal.