Data transmission method and system and data transmission and receiving device

A data transmission method and data technology, applied in digital transmission systems, transmission systems, error prevention/detection using return channels, etc., can solve the problem that the sub-PDU cannot be handed over to the MAC layer for processing, and when the MAC layer of the receiving end processes data Delay and other problems, to achieve the effect of reducing the delay of data demodulation and verification processing, and reducing the delay of data processing

Inactive Publication Date: 2007-08-15
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when one or several sub-PDUs are wrong, the UE physical layer cannot hand over the correct sub-PDUs to the MAC layer for processing, thus increasing the delay in data processing by the MAC layer at the receiving end

Method used

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  • Data transmission method and system and data transmission and receiving device

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Embodiment Construction

[0047] The core of the present invention is: the sending end sends a plurality of data units to the receiving end at the same time, and the receiving end performs demodulation and verification processing on each data unit at the same time, and delivers the correct data unit to the MAC layer of the receiving end, and waits for sending end retransmits the erroneous data unit.

[0048] Wherein, the multiple data units sent by the sender to the receiver include: multiple MAC PDUs delivered by the MAC layer of the sender to the physical layer of the sender, or the physical layer of the sender splits a MAC PDU handed over by the MAC layer of the sender into multiple sub-PDUs.

[0049] The technical solution provided by the present invention is applicable to the transmission of uplink data and downlink data; when performing uplink data transmission, the sending end is UE, and the receiving end is the network side; when performing downlink data transmission, the sending end is the net...

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Abstract

The provided data transmission method comprises: the transmitting side simultaneous sends lots data packages to the receiving side on physical layer; the latter simultaneous demodulates and checks every package, sends right package to the MAC layer, and waits for re-transmitted data. This invention reduces time delay, and improves transmission efficiency.

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] The earliest protocol version of WCDMA (Wideband Code Division Multiple Access) technology is Release99. In this version, both uplink and downlink services are carried based on dedicated channels, and the data transmission rate of uplink and downlink can both be Up to 384Kbps. [0003] Due to the increasing demand of users for data transmission rate, the WCDMA standard-setting organization successively launched downlink high-speed data packet access technology and uplink high-speed data packet access technology. These two access technologies can respectively provide up to 14.4Mbps and The peak rate of 5.76Mbps, and the spectral efficiency has also been greatly improved. [0004] HSDPA (High Speed ​​Downlink Packet Access, High Speed ​​Downlink Packet Access), as a high-speed down...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18
Inventor 陈林红韩欣丁颖哲
Owner HUAWEI TECH CO LTD
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