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

• US 7,292,554 B2
• Filed: 07/05/2002
• Issued: 11/06/2007
• Est. Priority Date: 07/05/2001
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Jong-Oh, Choi, Jae-Am
• Primary Examiner(s): HSU, ALPUS
• Application Number:
  US10/190,184
• Publication Number:
  US 20030012172A1
• Time in Patent Office: 1,950 Days
• Field of Search: 370/335, 370/338, 370/342, 370/349, 370/352, 370/410, 455/445, 455/450
• US Class Current: 370/335
• 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 over a first channel; and

a voice frame transmitter for constructing the voice frame using header information identification and voice data to be transmitted, upon completion of the call setup, and transmitting the constructed voice frame to the reception apparatus over a second channel different from the first channel,

wherein the header identification information is a code used for the voice frame transmitted through the second channel.

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 header identification information and the voice data, and transmitting the constructed voice frame to the reception apparatus.

6. 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 over a first channel; and

upon completion of the call setup, transmitting the voice frame constructed by a header identification information and a voice data to the reception apparatus over a second channel different from the first channel,

wherein the header identification information is a code used for the voice frame transmitted through the second channel.

7. The method of claim 6, 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.

8. The method of claim 7, wherein the destination ID includes at least one of a telephone number and an IP address.

9. The method of claim 8, wherein the header information includes at least one of RTP (Real Time Protocol) header information, UIDP (User Datagram Protocol) header information, and IP header information.

10. The method of claim 6, 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 header identification information and the voice data; and

transmitting the constructed voice frame to the reception apparatus.

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

12. The method of claim 11, 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.

13. The method of claim 11, 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.

14. An apparatus for receiving a signaling frame and a voice frame from at least one transmission apparatus through a first channel and a second channel in a CDMA (Code Division Multiple Access) mobile communication system having an ALL-IP network, the second channel being different from the first channel, 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 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 channel, adding the detected header information to the voice frame, and transmitting the header-added voice frame to the destination.

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

16. The apparatus of claim 14, 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.

17. 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, by a mobile terminal, header information needed to transmit a voice frame to a destination through a signaling frame during a call setup at a call attempt request of a user over a first channel;

constructing, by a mobile terminal, the voice frame using header identification information and voice data to be transmitted, upon completion of the call setup;

transmitting, by the mobile terminal, the constructed voice frame over a second channel different from the first channel;

acquiring, by a Node B, header information, needed to transmit the voice frame to a destination, from the signaling frame received through the first channel;

storing, by the Node B, acquired header information corresponding to the header identification information;

upon receipt of the voice frame, acquiring, by a Node B, header identification information from the voice frame received through the second channel;

adding, by a Node B, the header information stored corresponding to the header identification information to the voice frame; and

transmitting, by a Node B, the header-added voice frame to a core network,

wherein the header identification information is a code used for the voice frame transmitted through the second channel.

18. The method of claim 17, 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.

19. The method of claim 17, 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.

20. 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 during a call setup at a call attempt request of a user over a first channel, constructing the voice frame using header identification information and voice data to be transmitted, upon completion of the call setup, and transmitting the constructed voice frame over a second channel different from the first channel; and

a Node B for acquiring header information from the signaling frame received through the first channel, storing acquired header information corresponding to the header identification information, upon receipt of the voice frame, acquiring header identification information from the voice frame received through the second channel, and adding the header information stored corresponding to the header identification information to the voice frame and transmitting the header-added voice frame to a core network,

wherein the header identification information is a code used for the voice frame transmitted through the second channel.

21. The apparatus of claim 20, 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.

22. The apparatus of claim 20, 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.

23. 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 channel and a second channel, the second channel being different from the first 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 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 channel.

24. The method of claim 23, 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.

25. 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 channel and a second channel, the second channel being different from the first 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 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 channel, if the transmission frame is a voice frame.

26. The apparatus 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 LP header information.

27. A transmission apparatus in an IP-based mobile communication system in which a mobile terminal transmits a signaling frame over a first channel and a packet data frame over a second channel different from the first channel, comprising:

a header information storage for, upon receipt of a call setup request. 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, after completion of the call setup, 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.

28. A data processing method for a Node B in an IP-based mobile communication system in which a mobile terminal transmits a signaling frame over a first channel and a packet data frame over a second channel different from the first channel, comprising the steps of:

upon receipt of a call setup request, 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

after completion of the call setup, 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.