Codebook subset restriction signaling for multi-carrier multi-antenna wireless communication system

摘要

A radio network node identifies a codebook subset restriction to be applied to a user equipment (UE) employing carrier aggregation and multiple-input-multiple-output (MIMO), identifies a correspondence between the codebook subset restriction and multiple carriers in a carrier group of the UE, and transmits correspondence information indicating the correspondence between the codebook subset restriction and the multiple carriers in the carrier group. The UE receives the correspondence information and transmits channel state information for the multiple carriers according to the codebook subset restriction.

主权项

1. A method in a radio network node of a wireless communication system, comprising:
identifying a codebook subset restriction to be applied to a user equipment (UE) employing carrier aggregation in multiple-input-multiple-output (MIMO) communication; identifying a correspondence between the codebook subset restriction and multiple carriers in a carrier group of the UE; and transmitting, from the radio network node to the UE, correspondence information indicating the correspondence between the codebook subset restriction and the multiple carriers in the carrier group, wherein the correspondence information comprises first information associating the codebook subset restriction with one carrier in the carrier group, and second information indicating that at least one other carrier in the carrier group is to use the same codebook subset restriction as the one carrier.