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Data transmission method, communication apparatus and communication system

A transmission method and data technology, applied in the field of communication, can solve the problems of high transmission overhead, low transmission efficiency, waste of bandwidth, etc., and achieve the effect of saving transmission overhead and improving transmission efficiency.

Active Publication Date: 2009-01-21
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a data transmission method, communication equipment and communication system, which can reduce transmission overhead, improve transmission efficiency, and solve the shortcomings of large transmission overhead, waste of bandwidth, and low transmission efficiency in the prior art

Method used

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  • Data transmission method, communication apparatus and communication system
  • Data transmission method, communication apparatus and communication system
  • Data transmission method, communication apparatus and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Embodiment 1, a data transmission method, see Figure 5 ,include:

[0065] Step S1, the sending device and the receiving device negotiate compression information;

[0066] Step S2, the sending device encapsulates the data into multiple GTP-U data packets;

[0067] Step S3, the sending device sends part of the GTP-U data packets in the encapsulated multiple GTP-U data packets to the receiving device according to time sequence according to the negotiated compression information;

[0068] Step S4, according to the negotiated compression information, the sending device compresses the IP header, UDP header and GTP-U header in the rest of the GTP-U data in the multiple GTP-U data packets after encapsulation, and compresses The GTP-U data packets are sent to the receiving device in chronological order;

[0069] Step S5, the receiving device receives the uncompressed GTP-U data packet and the compressed GTP-U data packet, and decompresses the received compressed GTP-U data p...

Embodiment 2

[0073] Embodiment 2 is a data transmission method, which is applicable to PPP links. Transmit the compressed GRP-U data packets that meet the requirements of the PPP link on the PPP link. In this embodiment, the sending device is a base station, and the receiving device is a base station that sends data to the destination terminal. In fact, the receiving device may also be a serving gateway SGW. see Figure 6 The flow chart of the method shown includes:

[0074] Step Q1, the sending base station and the receiving base station negotiate the compression information through the network control protocol NCP protocol, and the NCP protocol is carried on the PPP protocol;

[0075] Wherein, the specific steps of negotiation in step Q1 include: the sending base station sends the negotiation compression message; the receiving base station receives the negotiation compression message, and judges whether the compressed data packet can be restored according to its own capability; and se...

Embodiment 3

[0122] Embodiment 3 is a data transmission method, which is applicable to the Ethernet network, that is, the case of a routing network. In Embodiment 3 of the present invention, the sending device may be a base station, and the receiving device may be a base station, or a core network side device, that is, the sending device and the receiving device are devices at both ends of a GTP tunnel. In order to facilitate the description of a data transmission method provided by Embodiment 3 of the present invention, it is considered that the sending device is a sending base station, and the receiving device is a receiving base station, see Figure 15 , the specific steps include:

[0123] Step F1, the sending base station negotiates with the receiving base station on compression information.

[0124] The step F1 is similar to the step Q1 in the second embodiment of the present invention. The same point between the step F1 and the step Q1 is: the parameters negotiated by the sending b...

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Abstract

The embodiment of the invention discloses a data transmission method, communication equipment and a communication system. The method comprises: packing the data to a plurality of GTP-U data packets; compressing a IP head, a UDP head and a GTP-U head in some GTP-U data packets in the GTP-U data packets to form the compressed GTP-U data packet; sending the uncompressed GTP-U data packets in the GTP data packets and the compressed GTP-U data packets to a receiving device. The compressed GTP-U data packets at least comprises a compression head which is formed by compressing the IP head, the UDP head and GTP-U head, and the compression head at least comprises a context identification CID, wherein, the CID is same with the CID in the uncompressed GTP-U data packet which comprises the same IP head, the same UDP head and the same GTP-U head. The embodiment of the invention can save the transmission cost and promote the transmission efficiency.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a data transmission method, communication equipment and a communication system. Background technique [0002] Tunneling is a method of transferring data between networks by using the infrastructure of the Internet. The data (or payload) transmitted through the tunnel may be data frames or packets of different protocols. The tunneling protocol repackages data frames or packets of other protocols and sends them through the tunnel. The new frame header provides routing information for passing the encapsulated payload data across the Internet. [0003] With the development of tunnel technology, various services have begun to formulate corresponding tunnel protocols according to their characteristics. The tunnel protocol in GPRS (General Packet Radio Service, general packet radio service) is GTP (GPRS Tunnel Protocol, GPRS tunnel protocol). The GPRS tunnel protocol c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04L69/22H04W28/06
Inventor 赖志昌杨义成
Owner SHANGHAI HUAWEI TECH CO LTD
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