Small data transmission method and equipment

A transmission method and small data technology, applied in the field of communication, can solve problems such as unreasonable network and UE, wireless air interface resources and node signaling resource burden, and achieve the effect of reducing congestion, reducing signaling overhead, and optimizing signaling process

Active Publication Date: 2012-01-25
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a large number of MTC devices need to communicate small data, it will cause a great burden on wireless air interface resources and node signaling resources; and the signaling required for the above process may be much larger than the amount of small data to be transmitted, which is harmful to the network and UE. unreasonable

Method used

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  • Small data transmission method and equipment
  • Small data transmission method and equipment
  • Small data transmission method and equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0060] Embodiment 1 of the present invention provides a small data transmission method. The method is aimed at the transmission process of small data. small data. 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.

[0061] Such as Figure 4 As shown, the method includes the following steps:

[0062] In step 401, the core network equipment (such as MME, SGSN (Serving GPRS Supporting Node, Serving GPRS Supporting Node), etc.) determines that there is small data to be sent to the UE in the idle state.

[0063] In th...

Embodiment 2

[0080] Embodiment 2 of the present invention provides a small data transmission method, combining Figure 5 The schematic diagram of the MTC architecture shown is described in detail. In the MTC architecture, the end-to-end communication between MTC devices and MTC applications can use the services provided by 3GPP. 3GPP provides transmission and communication services, including 3GPP bearer services, IMS and SMS, and is optimized for MTC communication.

[0081] UE can connect to 3GPP network (UTRAN, E-UTRAN, GERAN, I-WLAN, etc.) through Um / Uu / LTE-Uu interface. exist Figure 5 The architecture shown includes the following models: (1) direct model: direct communication provided by the 3GPP operator, MTC applications (applications) are directly connected to the operator's network without passing through the MTC server. (2) indirect model (indirect model): communication controlled by the MTC service provider, the MTC server is an entity outside the operator's domain, and MTCi, ...

Embodiment 3

[0099] Based on the same inventive concept as the above method, an access network device is also provided in the embodiment of the present invention, such as Figure 7 As shown, the equipment includes:

[0100] The core network side communication module 11 is configured to receive a paging message carrying small data from a core network device;

[0101] The user side communication module 12 is configured to send the small data to the corresponding user equipment through a radio resource control RRC message.

[0102] The core network side communication module 11 is specifically configured to receive a paging message carrying the small data from a core network device when there is small data to be sent to the user equipment in an idle state.

[0103] The user-side communication module 12 is specifically configured to send the small data to the user equipment through an RRC connection setup message.

[0104] The user side communication module 12 is specifically configured to pa...

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Abstract

The embodiment of the invention discloses a small data transmission method and equipment. The method comprises the following steps: access network equipment receives a paging message carrying small data from core network equipment; and the access network equipment sends the small data to corresponding UE (user equipment) through an RRC (radio resource control) message. In the embodiment of the invention, the downlink small data is transmitted to the UE in an idle state through RRC signaling, the signaling process of small data transmission is optimized, and the service request process initiated due to the small data transmission is avoided, thereby effectively reducing the signaling overhead in an MTC (machine type communication) scene, reducing the resource consumption of the core network equipment and UE and reducing the possibility of congestion of the core network equipment.

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] (1) Requirements for Small Data Transmission. [0003] 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. [0004] 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.); For large a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/20H04W28/06
Inventor 康艳超艾明王胡成
Owner DATANG MOBILE COMM EQUIP CO LTD
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