Apparatus and method for transmitting a voice frame in an all-IP-based mobile communication system

• US 20030012172A1
• Filed: 07/05/2002
• Published: 01/16/2003
• Est. Priority Date: 07/05/2001
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jong-Oh, Choi, Jae-Am
• Granted Patent: US 7,292,554 B2
• Time in Patent Office: Days
• US Class Current: 370/342
• CPC Class Codes: H04L 65/1043 Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
• CPC Class Codes: H04L 65/1101 Session protocols
• 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 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365

Abstract

A method for transmitting voice traffic in an ALL-IP-based mobile communication system. A mobile terminal first transmits header information using a signaling frame, and then separately transmits only a voice frame. A Node B detects the header information from the signaling frame received, stores the detected header information, and upon receipt of the voice frame, adds the header information to the voice frame and transmits the header-added voice frame to a core network.

Claims

1. A transmission apparatus for transmitting a signaling frame and a voice frame to a reception apparatus in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP (Internet Protocol) network, comprising:

a signaling frame transmitter for transmitting header information, needed to transmit a voice frame to a destination, to the reception apparatus through a signaling frame during a call setup at a call attempt request of a user; and

a voice frame transmitter for constructing the voice frame using only voice data to be transmitted, upon completion of the call setup, and transmitting the voice frame to the reception apparatus.

2. The transmission apparatus of claim 1, wherein the signaling frame transmitter comprises:

a signaling processor for outputting a header generating command during the call setup;

a protocol stack for generating header information corresponding to a destination ID (Identifier) input by the user in response to the header generation command; and

a transmitter for transmitting the header information to the reception apparatus through the signaling frame.

3. The transmission apparatus of claim 2, wherein the destination ID includes at least one of a telephone number and an IP address.

4. The transmission apparatus of claim 3, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

5. The transmission apparatus of claim 1, wherein the voice frame transmitter comprises:

a codec for converting voice signals to be transmitted into voice data, after completion of the call setup; and

a transmitter for constructing the voice frame using only the voice data, and transmitting the constructed voice frame to the reception apparatus.

6. The transmission apparatus of claim 1, wherein the signaling frame and the voice frame are transmitted through different channels.

7. A method for transmitting a signaling frame and a voice frame to a reception apparatus in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, comprising the steps of:

transmitting header information, needed to transmit a voice frame to a destination, to the reception apparatus through a signaling frame during a call setup at a call attempt request of a user; and

transmitting the voice frame to the reception apparatus.

8. The method of claim 7, wherein the signaling frame transmission step comprises the steps of:

outputting a header generating command during the call setup;

generating header information corresponding to a destination ID (Identifier) input by the user in response to the header generation command; and

transmitting the header information to the reception apparatus through the signaling frame.

9. The method of claim 8, wherein the destination ID includes at least one of a telephone number and an IP address.

10. The method of claim 9, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

11. The method of claim 7, wherein the voice frame transmitting step comprises the steps of:

converting voice signals to be transmitted into voice data, after completion of the call setup;

constructing the voice frame using only the voice data; and

transmitting the constructed voice frame to the reception apparatus.

12. The method of claim 7, wherein the signaling frame and the voice frame are transmitted through different channels.

14. The method of claim 13, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

15. The method of claim 13, further comprising the step of deleting header information stored in association with a code for a release-requested call, upon receipt of a request for releasing the call.

17. The apparatus of claim 16, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

18. The apparatus of claim 16, wherein the frame controller deletes header information stored in the header information storage in association with a code for a release-requested call, upon receipt of a request for releasing the call.

20. The method of claim 19, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

21. The method of claim 19, further comprising the step of deleting header information stored in association with a code for a release-requested call, upon receipt of a request for releasing the call.

13. A method for receiving a signaling frame and a voice frame from at least one transmission apparatus through a first physical channel and a second physical channel in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, comprising the steps of:

upon receipt of a call setup request, acquiring header information, needed to transmit a voice frame to a destination, from a signaling frame received through the first physical channel, and storing the acquired header information in association with a code used for the transmission apparatus;

after completion of the call setup, extracting a code used for the voice frame received through the second physical channel, and detecting header information corresponding to the extracted code from the header information stored in association with the code; and

adding the detected header information to the voice frame, and transmitting the header-added voice frame to the destination.

16. An apparatus for receiving a signaling frame and a voice frame from at least one transmission apparatus through a first physical channel and a second physical channel in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, comprising:

a protocol stack for, upon receipt of a call setup request, acquiring header information, needed to transmit a voice frame to a destination, from a signaling frame received through the first physical channel;

a header information storage for storing the acquired header information in association with a code used for the transmission apparatus; and

a frame controller for, after completion of the call setup, detecting header information corresponding to a code used for the voice frame received through the second physical channel, adding the detected header information to the voice frame, and transmitting the header-added voice frame to the destination.

19. A method for transmitting a frame in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, comprising the steps of:

transmitting header information needed to transmit a voice frame to a destination through a signaling frame;

constructing a voice frame using only voice data;

transmitting the constructed voice frame;

acquiring header information from the signaling frame;

storing the acquired header information;

upon receipt of the voice frame, adding the stored header information to the voice frame; and

transmitting the header-added voice frame to a core network.

22. An apparatus for transmitting a frame in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, comprising:

a mobile terminal for transmitting header information needed to transmit a voice frame to a destination through a signaling frame, constructing a voice frame using only voice data and transmitting the constructed voice frame; and

a Node B for acquiring header information from the signaling frame, storing the acquired header information, and upon receipt of the voice frame, adding the stored header information to the voice frame and transmitting the header-added voice frame to a core network.

23. The apparatus of claim 22, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

24. The apparatus of claim 22, wherein the Node B deletes header information stored in association with a code for a release-requested call, upon receipt of a request for releasing the call.

26. The method of claim 25, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

28. The apparatus of claim 27, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UDP (User Datagram Protocol) header information, and IP header information.

30. The transmission apparatus of claim 29, wherein the signaling frame transmitter comprises:

a signaling processor for outputting a header generating command according to signaling information;

a protocol stack for generating a header in response to the header generation command; and

a transmitter for transmitting the signaling frame with the generated header through a physical layer.

31. The transmission apparatus of claim 29, wherein the packet transmitter comprises:

a codec for converting input voice into voice data; and

a packet data frame transmitter for packetizing the voice data into a packet data frame, and transmitting the packet data frame through a physical layer.

32. The transmission apparatus of claim 29, wherein the signaling frame and the packet data are transmitted through different channels.

25. A method for transmitting a transmission frame, received from a core network, from a Node B to a mobile terminal in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network and transmitting a signaling frame and a voice frame to the mobile terminal through a first physical channel and a second physical channel, comprising the steps of:

determining a type of a transmission frame received from the core network;

if the transmission frame is a signaling frame, transmitting the transmission frame with header information to the mobile terminal through the first physical channel; and

if the transmission frame is a voice frame, removing header information from the transmission frame and transmitting the header-removed transmission frame to the mobile terminal through the second physical channel.

27. An apparatus for transmitting a transmission frame, received from a core network, from a Node B to a mobile terminal in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network and transmitting a signaling frame and a voice frame to the mobile terminal through a first physical channel and a second physical channel, comprising:

a header information storage for storing header information in association with a code for identifying the mobile terminal;

a protocol stack for separating header information from a transmission frame received from the core network; and

a frame controller for transmitting the transmission frame with header information to the mobile terminal through the first physical channel if the transmission frame is a signaling frame; and

removing header information from the transmission frame, and transmitting the header-removed transmission frame to the mobile terminal through the second physical channel, if the transmission frame is a voice frame.

29. A transmission apparatus in an IP-based mobile communication system, comprising:

a signaling frame transmitter for generating an IP header and transmitting a signaling frame with the IP header; and

a packet transmitter for transmitting packet data without an IP header after transmission of the signaling frame.

33. A transmission apparatus in an IP-based mobile communication system in which a mobile terminal transmits a signaling frame and a packet data frame through different channels, comprising:

a header information storage for generating a table in which header information detected from the signaling frame is mapped to a unique code of the mobile terminal, and storing the table therein; and

a transmission frame generator for receiving a packet data frame transmitted by the mobile terminal, adding to the packet data frame a header corresponding to the mobile terminal, the header read from the header information storage, and transmitting the header-added packet data frame to a core network.

36. The transmission method of claim 35, wherein the signaling frame transmission step comprises the steps of:

outputting a header generation command according to signaling information;

generating a header in response to the header generation command; and

transmitting the signaling frame with the generated header through a physical layer.

37. The transmission method of claim 35, wherein the data transmission step comprises the steps of:

converting input voice into voice data; and

packetizing the voice data into a packet data frame, and transmitting the packet data frame through a physical layer.

34. An IP-based mobile communication system comprising:

a mobile terminal for transmitting a signaling frame with header information, and then separately transmitting a data frame; and

a Node B for detecting header information from the signaling frame received from the mobile terminal, storing the detected header information in the Node B, adding the stored header to the data frame upon receipt of the data frame, and transmitting the header-added data frame to a core network.

35. A transmission method for a mobile terminal in an IP-based mobile communication system, comprising the steps of:

generating an IP header and transmitting a signaling message with the IP header; and

transmitting data without an IP header after transmission of the signaling frame.

38. A data processing method for a Node B in an IP-based mobile communication system in which a mobile terminal transmits a signaling frame and a packet data frame through different channels, complising the steps of:

detecting a header from the signaling frame received from the mobile terminal, generating a table including header information for the mobile terminal, and storing the table in a header information storage; and

receiving a packet data frame transmitted by the mobile terminal, adding to the packet data frame a header corresponding to the mobile terminal, the header read from the header information storage, and transmitting the header-added packet data frame to a core network.

39. A data transmission method in an IP-based mobile communication system, comprising the steps of:

packetizing IP header information and user voice data into a signaling frame and a voice frame, respectively, and transmitting the signaling frame and the voice frame from a mobile terminal to a Node B; and

detecting the IP header information from the signaling frame received from the mobile terminal, storing the detected IP header information therein, adding the IP header to the voice frame upon receipt of the voice frame, and transmitting the header-added voice frame to a core network.