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Data transmission in cellular phone network

A technology of data and data blocks, applied in the direction of electrical components, digital transmission systems, transmission control/equalization, etc., can solve problems such as non-use, inconsistent power spectrum, inter-cell interference, etc., and achieve the effect of reducing potential

Inactive Publication Date: 2013-03-20
LENOVO INNOVATIONS LTD HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such inter-cell interference occurs especially with regard to OFDM-based systems because, unlike WCDMA systems where a single radio link may utilize the entire cell bandwidth, the total bandwidth occupancy within an OFDM-based system tends to depend on the cell load
Given this, the power spectrum across the cell bandwidth is likely to be inconsistent, since on this spectrum several frequencies may exhibit a first transmit power level and other frequencies may exhibit a second transmit power level different from the first transmit power level. power level, and there are also frequencies that may not be used at all

Method used

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  • Data transmission in cellular phone network
  • Data transmission in cellular phone network
  • Data transmission in cellular phone network

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Embodiment Construction

[0032] With regard to the figures, it should be understood that the illustrated embodiments of the invention relate to the transmission of OFDM resource blocks and that the replication of resource blocks is based on the well-known Hybrid ARQ (Hybrid ARQ) scheme.

[0033] figure 1 The main aspects of the method employing the invention are shown and the method starts at step 10, where a radio resource allocation within a particular cell of a mobile radio communication network is determined. As will be apparent from the following discussion, physical resource allocation within a cell is typically investigated by determining the number of OFDM physical resource blocks in use at any given moment.

[0034] At step 12, a determination is made as to whether block duplication of the present invention should be activated; any such duplication is based on HARQ technology and is identified here as Duplicated HARQ (D-HARQ).

[0035] Traditional HARQ schemes transmit data blocks one by one...

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Abstract

The invention provides for a method of transmitting data in a mobile radio communications network cell, wherein at least one data block is transmitted, at a first transmission power level, for a user of the cell, the method including the step of monitoring radio resource occupancy within the cell and at least duplicating the said at least one data block within the cell responsive to a determination that the radio resource occupancy has reduced to a level below a threshold value, and whereby the duplicated data blocks are transmitted at a second transmission power level less than the said first transmission power level.

Description

technical field [0001] The present invention relates to data transmission in a cellular telephone network, and more particularly to a method of transmitting data in a cell of a mobile radio communication network and an associated data transmitter. Background technique [0002] In mobile radio communication networks, especially in networks employing Orthogonal Frequency Division Multiplexing (OFDM), it is common for different cells to share the same frequency bandwidth, which can cause interference between the different cells. Such inter-cell interference occurs especially with regard to OFDM-based systems because, unlike WCDMA systems, where a single radio link may utilize the entire cell bandwidth, the total bandwidth occupancy within an OFDM-based system tends to depend on the cell load. Given this, the power spectrum across the cell bandwidth is likely to be inconsistent, since on this spectrum several frequencies may exhibit a first transmit power level and other frequen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04W52/48
CPCH04L1/0041H04W52/48H04L1/1812H04L1/0003H04L1/08Y02B60/50H04L1/0013H04B7/005H04W8/00H04W40/00H04W40/02H04W40/08H04W40/10H04W52/00H04W52/34H04W84/00
Inventor 纪尧姆·戴勒瓦
Owner LENOVO INNOVATIONS LTD HONG KONG