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A small data transmission method and device

A technology of small data transmission and transmission method, which is applied in the field of communication, can solve problems such as imperfect technology, no mention, and inability to meet the needs of small data transmission, and achieve the effect of simplifying configuration and meeting flexible needs

Inactive Publication Date: 2011-12-07
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Operators can configure multiple mechanisms in the network to meet the small data transmission needs of different users; however, the current agreement does not mention the method of small data transmission between UE (User Equipment, user equipment) and the network side The method of negotiation, the existing technology is not perfect, and cannot meet the demand for small data transmission

Method used

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  • A small data transmission method and device

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Experimental program
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Embodiment 1

[0041] Embodiment 1 of the present invention provides a small data transmission method. The method is a negotiation process and a transmission process for small data. , the small data involved. For example, the description about the size of Small Data in the current protocol is: "The observed size of many of the instances of data exchanges is on the order of 1K(1024) octets or less", so it can be known that the data length can be kept within 1K bytes The following data is called small data; of course, in practical application, it is not limited to this definition method, and can be adjusted according to the actual situation, which will not be described in detail in the embodiment of the present invention.

[0042] Such as figure 1 As shown, the method includes the following steps:

[0043] Step 101, the network side equipment (such as core network equipment such as MME (Mobility Management Entity, Mobility Management Entity) / SGSN (Serving GPRS Support Node, GPRS service supp...

Embodiment 2

[0070] Embodiment 2 of the present invention provides a small data transmission method based on the attachment process, such as figure 2 As shown in the Attach procedure (attach process) schematic diagram, the scenario of this embodiment is that the UE initially attaches or is handover attached to the E-UTRAN (Evolved Universal Terrestrial Radio Access Network, evolved global terrestrial radio access network) network, through the attach process The process of negotiating the transmission mode of small data with the network.

[0071] In the first step, the UE carries negotiation information (negotiation information) through the attach request message in the attach process, including the small data transmission mode supported by the UE (that is, the selection preference of the decimal transmission scheme), and initiates the initial negotiation of the fractional transmission scheme to the network side.

[0072]If the MME contains the subscription information of the UE, or the MM...

Embodiment 3

[0077] Embodiment 3 of the present invention provides a small data transmission method based on the TAU process, such as image 3 The schematic diagram of the Tracking Area Update procedure with Serving GW change (TAU process of Serving GW change) is shown. The scenario of this embodiment is that the UE has been attached to the E-UTRAN system. Due to the change of the network or operator configuration strategy, the network passes The TAU procedure notifies the UE of a change in fractional transmission scheme.

[0078] Due to changes in network or operator configuration policies, the MME may re-select and configure the UE's small data transmission mode according to the method configured by the operator.

[0079] In step 20, the MME will carry the negotiation answer in the TAU accept message sent to the UE, and notify the UE of the configuration result of the small data transmission mode.

[0080] In addition to the message process described above, other message processes in th...

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Abstract

The present invention discloses a small data transmission method and equipment. The method comprises: a network side device determines a small data transmission mode to be adopted by a user equipment; the network side device notifies the user equipment of the small data transmission mode ; The network side device performs small data transmission with the user equipment based on the small data transmission mode. In the embodiment of the present invention, a method for negotiating a small data transmission mode between the UE and the network side is proposed to meet the needs of small data transmission; and the existing processes and messages can be reused as much as possible, thereby simplifying the configuration of the operator. Meet users' flexible needs for small data transmission methods.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a small data transmission method and device. Background technique [0002] Small data transmission (Small Data Transmission) requirements. Research on M2M (Machine to Machine, inter-machine) communication shows that providing M2M communication on a mobile network has a potential market prospect. The M2M service puts forward many new requirements for the system, and small data transmission is an important requirement. The characteristics of small data transmission are suitable for MTC (Machine Type Communication, Machine Type Communication) devices that send or receive small amounts of data. [0003] To this end, the following characteristic requirements for small data transmission are currently proposed: the system supports small data transmission and should have minimal impact on the network (such as signaling overhead, network resources, reconfiguration delay, etc.); Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/18H04W68/00
Inventor 康艳超徐晖王胡成田野
Owner CHINA ACAD OF TELECOMM TECH
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