Abstract: There is provided a method for implicitly signaling a power quotient to a user equipment, the power quotient providing a relationship between a reference signal and a data signal. The method comprises the steps of receiving a downlink control signal from a radio base station, the downlink control signal containing an index signal that is provided for indicating a modulation and/or coding scheme being used by the radio base station, and using the index signal to determine a power quotient that is to be used by the user equipment.

Abstract: The present invention relates to a mobile terminal device, a base station and a method that make it possible to use a channel quality indicator, CQI, reporting format for CQI reporting from the mobile terminal device to the base station, which CQI reporting format depends on a selected transmit antenna configuration. The mobile terminal device is arranged to receive a signal from a number of transmit antennas, which signal includes a number of subcarriers, and to determine the CQI, reporting format for a collection of the subcarriers based on the selected transmit antenna configuration. The mobile terminal device is further arranged to determine a number of CQI values relating to said subcarriers in accordance with the determined CQI reporting format and to transmit the CQI values to the base station in a feedback signal. The CQI reporting format is adapted to the selected transmit antenna configuration such that the granularity of CQI reporting depends on the selected transmit antenna configuration.

Abstract: A base station is described herein which implements a method that uses different aspects of reported channel quality information (CQI) measurements to help select the “best” transmit antenna(s) on which to transmit control channel information to mobile terminal(s). The base station can also transmit a format indicator to communicate the assigned control channel transmit antenna(s) and the assigned data transmit antenna(s) to the mobile terminal(s).

Abstract: A mobile station for a TD—CDMA cellular system includes means for maintaining a list of intracell interferers to the mobile station. Further means (14, 16) detect intercell interferers to the mobile station by using handover related information available in the mobile station. Detected intercell interferers that fulfil a predetermined selection criterion are added to the list of interferers. Means (12) are provided for performing interference cancellation for all interferers, both intracell and intercell, in the list with a joint detection algorithm.