Wireless-resource-dispatching method during multi-cell cooperation in relay-aided communication system

Abstract

The invention discloses a wireless-resource-dispatching method during multi-cell cooperation in a relay-aided communication system. A relay-aided and multi-cell-cooperation communication system used in the dispatching method comprises M cells, wherein each cell comprises a sending end, L relay forwarding stations and N mobile receiving terminals; and in the relay-aided and multi-cell-cooperation communication system, the transmission of a same time-frequency resource of each cell dispatches only one mobile receiving terminal. By the method, the interference coordination among the cells can be performed in an adaptive way on the premise of realizing a limited cooperation among the cells and ensuring the fairness between the users, so the spectral efficiency of the communication system is obviously improved; and compared with the conventional channel-state-based wireless-resource-dispatching technology, the adaptive interference coordinating scheme is optimal.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a wireless resource scheduling method in consideration of multi-cell coordination in a relay-assisted communication system. Background technique [0002] Early research on dynamic resource scheduling was mainly limited to single-cell systems, where each transmitter independently processed the signals of all mobile receivers in its serving cell; mobile receiver signals from other cells were used as interference signals, resulting in multi-cell systems Interference-limited features, especially for mobile receivers at the cell edge. How to better schedule multi-cell mobile receivers, so that the scheduled mobile receivers can use system resources more reasonably, so as to effectively weaken the adverse effects of inter-cell interference, is the key problem to be solved by multi-cell dynamic resource scheduling. [0003] We usually use channel state-based wireless sched...

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Problems solved by technology

However, since the transmitter status of each cell in the cellular network including the relay station (the transmitter and the relay station in the sector are alternately in the ON / OFF state) changes with time, according to the current measured channel conditions It is impossible to predict the channel state at the next moment, this phenomenon is called interference uncertainty in the present invention

At this time, it is difficult for us to use traditional methods for link adaptation and radio resource management based on channel state

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