Methods And Apparatuses For Controlling Control Channel Inter Cell Interference

摘要

Methods and arrangements for mitigating or avoiding inter cell interference on a control channel on which scheduling request are transmitted from UEs to a serving base station. The solution relates to classifying the UEs based e.g. on the type of services applied by the UEs, and allocating resources on the control channel based on the classification.

主权项

1. Method performed by a base station BS1 in a wireless communication network, the base station being operable to serve a number of User Equipments, UEs, the method comprising:
determining a type of service associated with a UE; determining whether the UE belongs to a first group of UEs or a second group of UEs, based on the type of service associated with the UE; and when the UE belongs to the first group of UEs:
allocating resources on the Physical Uplink Control Channel, PUCCH, to the UE in a first section of PUCCH resources;receiving scheduling requests, SRs, from the UE in the allocated resources in the first section of PUCCH resources; and when the UE belongs to the second group of UEs:
allocating resources on the PUCCH to the UE in a second section of PUCCH resources;receiving SRs from the UE in the second section of PUCCH resources; wherein the first and second section of resources on the PUCCH are separated in at least one of the dimensions time, frequency and code; thus enabling protection of the UEs in the first group from inter cell interference on the PUCCH.