Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window

A technology of data grouping and bundling windows, applied in the direction of digital transmission systems, transmission systems, electrical components, etc., can solve problems such as increased delay, undesirable, adverse effects on throughput and latency performance

Active Publication Date: 2011-04-13
OPTIS WIRELESS TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] Thus, a lost downlink assignment will generally cause block errors that need to be corrected by higher layer protocols, which in turn has an adverse effect on performance in terms of throughput and latency
Additionally, increased latency can lead to undesirable interactions with TCP-based applications

Method used

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  • Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window
  • Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window
  • Method and arrangement in a telecommunication system with signalling of assigned data packets in a bundling window

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Embodiment Construction

[0044] In brief, the inventive solution can be summarized as follows: the base station, while sending the data packets contained in the bundling window to the mobile terminal, provides the mobile terminal with the minimum total number of data packets scheduled to be transmitted to the mobile terminal in the bundling window knowledge, that is, information. In this way, the mobile terminal can determine whether data packets transmitted from the bundling window are received and detected.

[0045] The invention is defined as methods and arrangements which can be implemented in the embodiments described below.

[0046] figure 2 Shown is a wireless telecommunication system 100, such as E-UTRAN, also known as LTE, Third Generation Partnership Project (3GPP) WCDMA system or Global System for Mobile communications / Enhanced Data Rate for GSM Evolution (GSM / EDGE). The telecommunications system 100 uses TDD and includes a base station 110 and a mobile terminal 120 adapted to communicat...

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Abstract

An object of the present invention is to provide a mechanism for improving the detection of missed DL assignment. A method in a base station (110) for sending a data packet to a mobile terminal (120) is provided. The base station (110) uses a current bundling window for transmitting data packets in subframes of a radio channel. The bundling window comprises a number of data packets, already transmitted or to be transmitted to the mobile terminal (120). The data packets are to be confirmed by the mobile terminal (120). In a first subframe, the base station signals to the mobile terminal (120), a first downlink assignment of a first data packet of the bundling window. The downlink assignment comprises knowledge about a minimum total number of data packets within the bundling window that are scheduled to be transmitted to the mobile terminal (120).

Description

technical field [0001] The invention relates to methods and arrangements in a base station and to methods and arrangements in a mobile terminal. Specifically, it concerns downlink assignments. Background technique [0002] A key requirement for Long Term Evolution (LTE) in 3GPP wireless communication systems is frequency flexibility for transmissions between radio base stations and mobile terminals over radio links. To this end, carrier bandwidths between 1.4 MHz and 20 MHz are supported as Frequency Division Duplex (FDD) and Time Division Duplex (TDD), enabling the use of paired and unpaired spectrum. With FDD, the downlink, ie the link from the base station to the mobile terminal, and the uplink, ie the link from the mobile terminal to the base station, use different frequencies of the so-called "paired spectrum" and can therefore transmit simultaneously. With TDD, the uplink and downlink use the same frequency "unpaired spectrum" and cannot transmit at the same time. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W72/04H04L1/16
CPCH04L1/1867H04L1/1635H04W72/1289H04L1/1896H04L1/1621H04W72/1273H04W72/23
Inventor D·阿斯特利T·里登胡旸
Owner OPTIS WIRELESS TECH LLC
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