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Method, system and device for transmitting data

A data transmission and system information technology, applied in the field of data transmission, can solve problems such as data transmission errors and affecting data transmission efficiency

Active Publication Date: 2012-12-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiments of the present invention provide a data transmission method, system, and device to solve data transmission errors caused by multiple CCs in the prior art, and due to the introduction of time delay, Issues Affecting Data Transfer Efficiency

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  • Method, system and device for transmitting data
  • Method, system and device for transmitting data
  • Method, system and device for transmitting data

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Embodiment Construction

[0028] In order to effectively solve the problem of data transmission error and time delay when data transmission is performed on multiple CCs in LTE-A, the embodiment of the present invention provides a data transmission method, which is applied to at least two In a CC system, in the system, the terminal and the network-side device transmit data through the first CC in the current state. The method includes: when the network-side device determines that it needs to switch to the CA mode for data transmission, send the first CC to the terminal. Radio Resource Control (Radio Resource Control, RRC) dedicated control signaling, wherein the first RRC dedicated control signaling includes system information of at least one second CC used for data transmission in CA mode; the network The side device instructs the terminal through the first RRC dedicated control signaling to aggregate the at least one second CC with the first CC in a CA manner and perform data transmission according to ...

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Abstract

The invention discloses a method, a system and a device for transmitting the data, and is used for solving the problems of incorrect data transmission caused by data transmission through a plurality of CCs and influenced data transmission efficiency due to the introduction of time delay. The method comprises the following steps that: network equipment sends a first radio resource control (RRC) dedicated control signaling to a terminal when determining that a CA mode is needed for data transmission by conversion, wherein the first RRC dedicated control signaling comprises at least one second CC system message for the data transmission in the CA mode; and the network equipment instructs the terminal through the first RRC dedicated control signaling and performs data transmission according to the received system message after at least one second CC and a first CC are aggregated by adopting the CA mode. According to the scheme provided by the invention, the time delay of acquiring at least one second CC system message is avoided and the efficiency of the data transmission is improved by informing the terminal of adopting at least one second CC system message of a local cell in the CA mode through the RRC dedicated control signaling.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission method, system and device. Background technique [0002] In the next-generation mobile cellular communication system (Long Term Evolution-Advanced, LTE-Advanced) of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP), in order to improve the throughput of the system, Carrier Aggregation (Carrier Aggregation, CA ) technology, that is, multiple component carriers (Component Carriers, CCs) are aggregated together in the same cell. When the amount of data that needs to be transmitted with the terminal in the LTE-A system is relatively large, it is necessary to perform data transmission on multiple CCs at the same time, so as to increase the data transmission rate. When the terminal uses the multiple CCs for data transmission, it needs to monitor the physical downlink control channel (Physical Downlink Control C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
Inventor 梁靖鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD
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