Method and apparatus for rearranging data in mobile telecommunication system

A mobile communication system and rearrangement technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problems of increasing data transmission delay and increasing system overhead, so as to reduce interaction delay and improve data transmission efficiency The effect of improving and reducing data overhead

Active Publication Date: 2007-09-05
NOKIA TECHNOLOGLES OY
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AI Technical Summary

Problems solved by technology

[0005] It can be seen that in the process of data transmission, when passing through different protocol layers of the receiving end, such as passing through the MAC layer and RLC layer of the receiving end, the data of the receiving end is rearranged according to the added sequence number, thereby increasing the system overhead. And the MAC layer and the RLC layer are located in the base station and the RNC respectively. Through these two rearrangements, the delay of data transmission will be increased.

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  • Method and apparatus for rearranging data in mobile telecommunication system
  • Method and apparatus for rearranging data in mobile telecommunication system
  • Method and apparatus for rearranging data in mobile telecommunication system

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Embodiment Construction

[0038]The core of the present invention is to effectively reduce the time delay of data transmission and reduce the data transmission time by reducing the number of rearrangements of data between protocol layers in the evolved base station and simplifying the data header information in the Evolved Wireless Terrestrial Access (E-UTRAN) system. s expenses. That is to say, the radio link control layer in the prior art is moved down to the base station, or merged with the media access control layer in the base station (to effectively reduce the interface between the media access control layer and the radio link control layer time delay) to form the evolved media access control layer in the evolved base station, when the sender of the evolved base station receives the data packet to be transmitted, it first flexibly divides and concatenates the data packet, so that the evolved base station The receiving end retransmits, rearranges and reassembles the data packet.

[0039] In order...

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Abstract

The method comprises: a) after the hybrid automatic repeat request (HARQ) entity of receiving end receives the correctly-decoded transmission block, it sends it to the automatic repeat request (ARQ) of receiving end; the ARQ of receiving end receives the transmission block and un-packs the transmission block, and rearranges the upper layer protocol data unit to get service data unit. The apparatus thereof comprises: a first re-transmission unit used for sending the received transmission block to the second retransmission unit; a second re-transmission unit connected to the first retransmission unit used for up-packing the received transmission block to get the upper layer protocol data unit, and for rearranging the upper layer data unit to get service data unit and transmitting the service data unit to upper layer.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and device for rearranging data in a mobile communication system. Background technique [0002] In the early 1990s, some communication companies and some research organizations in Europe started the research work of wideband code division multiple access WCDMA. From 1998 to now, the technical specifications of WCDMA system have gone through Release 99, Release 4 , Release 5, and Release 6 are very mature for the above-mentioned stages, and the standardization work on Release 7 has already begun. At the same time, research on Long Term Evolution (LTE) has gradually become a new focus of standardization work. It is a low-cost network that can reduce delay, increase user data rate, improve system capacity and coverage. The LTE will be completely new from the system framework to the physical layer, aiming to provide users with services of higher speed and bette...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L12/56
Inventor 邵飞
Owner NOKIA TECHNOLOGLES OY
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