| 主权项 |
1. A mobile station, comprising:
an electronic memory; and at least one processor coupled with the electronic memory and operable to: select from a code book comprising indexed precoding vectors one or more indices of at least one preferred precoding vector, select from the code book one or more indices of at least one preferred companion precoding vector which can be used by a base station for other mobile stations served by the base station on the same time/frequency resource, transmit the one or more indices of the at least one preferred precoding vector towards the base station via an uplink channel, transmit the one or more indices associated with the at least one preferred companion precoding vector towards the base station via the uplink channel, determine a signal quality parameter for at least two precoding vectors, wherein the signal quality parameter is a real scalar inter-cell interference indicator indicating an inter-cell spatial interference, a real scalar inter-cell interference indicator indicating a received inter-cell signal strength, a real scalar inter-cell interference indicator indicating an inter-cell signal-to-noise-ratio or a real scalar inter-cell interference indicator indicating an inter-cell signal-to-interference-and-noise-ratio, select an index of the preferred precoding vector based on the determined signal quality parameter and showing a high received signal strength, signal-to-noise-ratio and/or signal-to-interference-and-noise-ratio, and select an index of the preferred companion precoding vector based on the determined signal quality parameter and showing a low received signal strength, signal-to-noise-ratio, signal-to-interference-and-noise-ratio and/or inter-cell spatial interference; and wherein the mobile station is operable to select only those precoding vectors as preferred companion precoding vectors which produce in combination with a preferred precoding vector an intra-cell spatial interference remaining below a predefined threshold. |
