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Method and device for transmitting downlink data

A downlink data and data technology, applied in the direction of electrical components, wireless communication, etc., can solve the problems of huge signaling burden and waiting delay

Active Publication Date: 2016-04-27
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a method and device for transmitting downlink data, which are used to solve the problem of introducing a huge signaling burden and waiting delay in the data transmission scheme in the prior art for the transmission of small burst data packets

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  • Method and device for transmitting downlink data
  • Method and device for transmitting downlink data

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Embodiment Construction

[0145] In the embodiment of the present invention, after receiving the first type of data packet from the SGW, the base station sends a paging message carrying the terminal identifier in the first type of data packet; A second type of data packet obtained by decapsulating the first type of data packet. Because the embodiment of the present invention can avoid the control plane delay and air interface signaling burden introduced by the transition from the idle state to the connected state after the data arrives, and greatly reduce the connection maintenance caused by the terminal entering the connected state due to no data transmission for a long time overhead. Thus, the performance of the existing cellular system in terms of downlink burst small data transmission is improved.

[0146] If applied in the LTE system, the first type of data packet can be GTP (GPRSTunnelingProtocol, GPRS tunneling protocol; GPRS, GeneralPacketRadioService, general packet radio service) data packet...

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Abstract

Embodiments of the invention relate to the technical field of wireless communication, and particularly relate to a method and a device for transmitting downlink data. The method and the device are used for solving the problem that the data transmission scheme in the prior art will introduce a quite large signaling burden and waiting delay in the case of emergent small data packet transmission. The method provided by the embodiments of the invention comprises the steps that: after receiving a data packet of a first type from an SGW, a base station sends a paging message carrying a terminal identifier in the data packet of the first type; and after a terminal is randomly accessed, a data packet of a second type obtained by decapsulating the data packet of the first type is sent to the terminal. Since the method and the device provided by the embodiments of the invention can be used for avoiding control plane time delay and air interface signaling burden introduced by converting from an idle state to a connection state after data arrival and greatly reducing the cost of connection maintenance resulting from that no data are sent for a long time after the terminal enters the connection state, the emergent small data transmission performance of an existing cellular system is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and equipment for transmitting downlink data. Background technique [0002] In the current LTE (LongTerm Evolution, Long Term Evolution) cellular system, the RRC (RadioResourceControl, Radio Resource Control) connection will be released when the UE (terminal) has no data transmission for a long time, so after the subsequent downlink data arrives, the MME (MobilityManagementEntity, mobile management entity) first needs to trigger the UE to resume the RRC signaling connection through the Paging (paging) process, and then the user plane data transmission can be performed. Currently, the Paging process and the recovery of the control plane connection process take hundreds of milliseconds. [0003] There is a UEtriggeredServiceRequest (UE triggered service request) process in the Paging process and the process of restoring the control plane connection. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W74/08
CPCH04W68/02H04W74/0833H04W68/005
Inventor 焦斌
Owner DATANG MOBILE COMM EQUIP CO LTD
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