Method for coordinated uplink resource allocation

Abstract

The present invention relates to a method for uplink radio resource allocation in a cellular wireless communication system, said cellular wireless communication system comprising: at least one first cell associated with a first control node and one or more first mobile stations served by said first cell, and at least one second cell associated with a second control node and one or more second mobile stations served by said second cell, and said method comprising the steps of: grouping, by said first control node, said one or more first mobile stations into at least two different groups depending on an interference impact of a first mobile station on said second cell; allocating, by said first control node, uplink radio resources of said first cell for said one or more first mobile stations based on said grouping so as to obtain a first radio resource allocation pattern for said one or more first mobile stations; transmitting, by said first control node, a first message comprising said first radio resource allocation pattern; receiving, by said second control node, said first message comprising said first radio resource allocation pattern; and allocating, by said second control node, uplink radio resources of said second cell for one or more second mobile stations based on said first radio resource allocation pattern. Furthermore, the invention also relates to a method in a first control node, a method in a second control node, a first control node device, a second control node device, a computer program, and a computer program product thereof.

Description

technical field [0001] The invention relates to a method for allocating uplink radio resources in a cellular radio communication system. Furthermore, the invention also relates to a method in a first control node, a method in a second control node, a first control node device, a second control node device, a computer program, and a computer program product thereof. Background technique [0002] In a heterogeneous network (HetNet, Heterogeneous Network) environment, when more and more cells and mobile stations such as user equipment (UE, User Equipment) become part of the network, the interference situation in the network will also become more and more complicated. The interference situation together with the imbalance of uplink (UL, uplink) and downlink (DL, downlink) interference and the huge uplink interference variation poses a great challenge to the network. [0003] In order to better utilize the radio resources of small cells (such as microcells, picocells and femtoce...

AI Technical Summary

Problems solved by technology

The disadvantage of this choice is: Since the small cell cannot predict the interference level of TTI6, if the next TTI is low interference, the selected MCS is too conservative and will reduce the spectral efficiency

[0040] However, in this solution, although the macro base station has detected the interfering device and also limited the interference in the frequency domain (or carrier domain), the information utilization in the small cell is still not optimistic

Images