Data transmission method, system and equipment

A data transmission method and data transmission technology, applied in the field of data transmission methods, systems and equipment

Active Publication Date: 2012-01-11
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a data transmission method, system, and equipment for solving the problem of how to transmit data when a UE does not establish a PDN connection

Method used

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  • Data transmission method, system and equipment
  • Data transmission method, system and equipment
  • Data transmission method, system and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Such as Figure 4A As shown, the specific process is as follows:

[0085] Step 1. When the application layer of the UE in the online state needs to transmit a small amount of data, if the UE has not yet established a corresponding PDN connection, request the NAS layer to construct a new initial NAS message, and encapsulate an SM message container in the message , encapsulate the PDN connectivity request message into this container; UE will carry the IP data packet containing the small amount of data to be transmitted in the initial NAS message. At this time, since there is no EPS bearer ID, it does not need to be filled in;

[0086]Step 2. The MME receives the initial NAS message. If it contains a PDN connectivity request message, the MME judges whether the IP data packet in the initial NAS message is applicable to the small data transmission feature according to the subscription information of the terminal. If it is not applicable, the PDN connection request is rejecte...

Embodiment 2

[0096] Such as Figure 4B As shown, the specific process is as follows:

[0097] Step 1. When the application layer of the UE in the offline state needs to transmit a small amount of data, if the UE has not yet established a corresponding PDN connection, it will send an Attach message to the MME, encapsulate an SM message container in the message, and attach the PDN to the MME. The connectivity request message is encapsulated into this container; the UE carries the IP data packet containing the small amount of data to be transmitted in the Attach message;

[0098] Step 2. The MME receives the Attach message. If it contains a PDN connectivity request message, the MME judges whether the IP packet in the Attach message is applicable to the small data transmission feature according to the subscription information of the terminal. If it is not applicable, the PDN connection request is rejected. The process End; if applicable, go to step 3;

[0099] Step 3. MME establishes the PDN...

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PUM

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Abstract

The embodiment of the invention discloses a data transmission method, a system and equipment, which relate to the technical field of wireless communication and are used for solving the problem of data transmission when a terminal does not build a packet data network (PDN) connection. In the data transmission method, the system and the equipment, when the terminal needs to transmit data, but the PDN connection for transmitting the data is not built, data transmission messages carrying the PDN connection request messages and data transmission messages of data packets to be transmitted are sent to a mobility management entity (MME), the MME receives the data transmission messages and only builds the core network side PDN connection, and in addition, the data packets to be transmitted are sent out through the PDN connection. Therefore, by the invention, the scheme of data transmission of user equipment (UE) can be realized without building the PDN connection.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a data transmission method, system and equipment. Background technique [0002] The data transmission feature of small data volume is an important requirement in machine type communication technology, aiming to reduce the consumption of network signaling and bearer resources caused by data transmission of small data volume, so it is necessary to standardize the third generation mobile communication for this feature Organization (3rd Generation Partnership Project, 3GPP) network optimization, for this reason, the following requirements are put forward in the agreement TS22.368: [0003] The small data volume data transfer feature is suitable for machine type communication (MTC) devices that send or receive small amounts of data. For small data volume data transfer characteristics: [0004] First, the system supports small data volume data transmission and should hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06
CPCH04W60/00H04W76/022H04W76/02H04W28/06H04W76/12H04W88/16H04W8/02H04W8/26H04W88/005
Inventor 王胡成
Owner DATANG MOBILE COMM EQUIP CO LTD
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