Method for allocation of transmission resources in a cooperative cellular network

A technology of cellular network and transmission resources, applied in the field of cooperation schemers, which can solve problems such as cellular interference

Inactive Publication Date: 2011-02-09
法国原子能与替代能委员会
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] A new problem that occurs with cellular networks that use relay cooperation is external and internal cellular interference

Method used

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  • Method for allocation of transmission resources in a cooperative cellular network
  • Method for allocation of transmission resources in a cooperative cellular network
  • Method for allocation of transmission resources in a cooperative cellular network

Examples

Experimental program
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Embodiment Construction

[0042] Again illustrating a cellular network, where the cooperation scheme is traced to relays operating in half-duplex mode. Thus, each cell contains a set of roots, a set of receivers and a set of relays, which become empty if the cell under consideration is not set up for cooperation via relays. When the cell served by the base station is itself divided into sectors or microcells, and if the allocation of resources is provided by each sector / microcell, there is no loss of meaning in understanding that the term "cell" can Applied to the base entity for resource allocation.

[0043] Usually, the transmission resources used by the cellular network include transmission time slot (cf.TDMA system), frequency (cf.FDMA system), frequency block (cf.OFDMA system), orthogonal code (cf.CDMA system), or other resources The combination.

[0044] In a preferred embodiment related to the OFDMA system, transmission time slots and frequency blocks, ie groups of subcarriers of the OFDM mult...

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PUM

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Abstract

The invention concerns a method to allocate transmission resources in a cell network of cooperative type. Each cell comprises a source, a receiver and optionally a half-duplex relay to relay data transmitted by the source to the receiver. The invention draws advantage from the half-duplex mode of a relay belonging to a cell, by allocating to the source of a neighbouring cell a resource used by this relay during one same transmission timeslot.

Description

technical field [0001] The present invention relates to the field of cellular telecommunications and in particular to those using cooperative schemes. Background technique [0002] In wireless mobile terminals, such as WiMax, the global new telecommunication standard of 3GPP LTE (3GPP Long Term Evolution), a compromise technology has recently been studied to increase the range and throughput of traditional cellular networks. This cooperative solution technology is configured in base station or mobile terminal. [0003] An example of a cellular network using a cooperative approach is documented in S. Shamai et al. entitled "Cooperative multi-cell neyworks: impact of limited capacity backhaul and inter-user links", by Proc. of the Joint Workshop on Coding and Communications, Austria , published Oct.14-16.2007, and C.Hoymann et al. titled "Flexible RelayWireless OFDM-based Networks", published by Proc.of 15th IST Moible and WirelessCommunicatiom Summit, June 2006. [0004] Ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W84/047H04W16/10H04B7/2606H04W28/16
Inventor 卡尔瓦内塞·斯特里纳蒂·埃米利奥阿布格拉尔·塞德里克
Owner 法国原子能与替代能委员会
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