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Data transmission method and system

A data transmission method and data technology, which are applied in the field of data transmission, can solve the problems of reducing data transmission efficiency and reducing the downlink coverage capability of the cell edge, and achieve the effect of improving the efficiency and increasing the downlink coverage capability.

Active Publication Date: 2011-08-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the transmission mode of 2msTTI belongs to short frame transmission, which reduces the downlink coverage capability at the edge of the cell, thus reducing the efficiency of data transmission to user equipment at the edge of the cell.

Method used

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Embodiment Construction

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047]The downlink part of the HSDPA network is that multiple user equipment (User Equipment; hereinafter referred to as UE) transmit data on the High-Speed ​​Downlink Shared Channel (hereinafter referred to as HS-DSCH) at the same time, so each UE needs to be ID, so that different UEs can receive their own data on the data channel. The HS-DSCH R...

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Abstract

The embodiment of the invention provides a data transmission method and system. The data transmission method comprises the following step of: transmitting data to UE (User Equipment) corresponding to a first H-RNT1 (HS-DSCH (High-Speed Downstream Shared Channel) Radio Network Temporary Identifier1) through a relay node corresponding to a second H-RNT1 according to a mapping relation between the first H-RNT1 of the UE and the second H-RNT1 of the relay node accessed by the UE. Through adopting the technical scheme provided by the embodiment of the invention, the coverage capability of a cell border can be extended, and the efficiency of transmitting data to the UE at the cell border can be further improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of data transmission, and in particular, to a data transmission method and system. Background technique [0002] In order to meet the increasing demand of multimedia services for high-speed data transmission, the 3rd Generation Partnership Project (3rd Generation Partnership Project; hereinafter referred to as 3GPP) proposes a High Speed ​​Downlink Package Access (hereinafter referred to as HSDPA) technology. HSDPA is a packet-based data service, specifically the optimization and evolution of packet services in the downlink direction, that is, from the wireless access network to the mobile terminal. Therefore, HSDPA can enhance the downlink part of mobile data transmission and realize high-speed data transmission. [0003] In the existing HSDPA technology, the transmission mode adopting 2 ms transmission time interval (Transmission Time Interval, hereinafter referred to as TTI) is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W72/12H04L1/00
CPCH04W72/0406H04W84/047H04W48/08H04W8/26H04W72/20
Inventor 周真王宗杰陈君韩重阳
Owner HUAWEI TECH CO LTD
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