Method for transmitting packet data in communication system

• US 8,351,376 B2
• Filed: 01/26/2010
• Issued: 01/08/2013
• Est. Priority Date: 11/24/2001
• Status: Expired due to Term

• Current Assignee: 3G Licensing S.A. (Fineur International S.A.)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Seung-June, Yeo, Woon-Young, Lee, So-Young
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): LIU, JUNG
• Application Number:
  US12/656,338
• Publication Number:
  US 20100135216A1
• Time in Patent Office: 1,078 Days
• Field of Search: 370/203, 370204-215, 370229-240, 370241-253, 370310-337, 370338-350, 370/395.1, 370/395.3, 370/395.4, 370/395.41, 370/395.42, 370/395.5, 370/395.52, 370/395.53, 370412-421, 370431-457, 370458-463, 370464-497, 370498-522, 370521-529
• US Class Current: 370/328
• 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: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/325 in the network layer [OSI layer 3], e.g. X.25 H04L69/16 takes precedence
• 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
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]

Abstract

A method and apparatus for a transmitter having a radio protocol with an upper layer and a lower layer therein used for management of full header packet transmission when transmitting data packets to a receiver are provided. If the upper layer receives from the lower layer, information of a successful transmission of a full header packet, the upper layer decides to stop sending any additional full header packet that contains the same full header as the previously successfully transmitted full header packet.

Claims

1. A method of transmitting a data packet within a telecommunication system that transmits or receives telecommunication data, wherein the system includes a header compression layer at a transmitting side capable of transmitting a full header packet having all header information and compressed header packets having compressed header information, with respect to a packet stream, the method comprising:

transmitting at least one full header data packet to a receiver side from the transmitter side;

receiving, at a lower layer associated with the transmitter side, an acknowledgement from the receiver side that a data packet containing a full header has been successfully received;

determining, at an upper layer associated with the transmitter side, whether to send a data packet containing a compressed header to the receiver side, based on transferring an indication of the acknowledgement received from the lower layer of the transmitter side at the upper layer of the transmitter side; and

in response to said determining based on said indication of acknowledgement, transmitting a data packet containing a compressed header to the receiver side from the transmitter side,

wherein the indication of a successful transmission comprises an identifier used to indicate at least one packet that was successfully received by a lower layer of a receiving side.

2. The method of claim 1, wherein the indication from the lower layer relates to a transmission result of one or more packets.

3. The method of claim 1, wherein the indication from the lower layer relates to a periodically or non-periodically repeated transmission result of the full header packet.

4. The method of claim 1, wherein a context identifier is also transmitted with the full header packet to allow each packet stream to be identified.

5. The method of claim 1, wherein the upper layer is a packet data convergence protocol entity, and the lower layer is a radio link control entity.

6. The method of claim 1, wherein the transmitter side is a network and the receiver side is a terminal, or the transmitter side is a terminal and the receiver side is a network.

7. The method of claim 1, wherein the packets are a non-transmission control protocol stream.

8. The method of claim 7, wherein the non-transmission control protocol is a user datagram protocol/Internet Protocol.

9. The method of claim 1, wherein the indication of a successful transmission is provided by radio link control acknowledgement signaling.

10. The method of claim 1, wherein the identifier is a Message Unit Identifier, the at least one packet is a radio link control service data unit, and the lower layer is a radio link control entity.