CHANNEL QUALITY REPORTING IN A COMMUNICATIONS SYSTEM

摘要

The embodiments herein relate to a method in a user equipment for handling CSI in a communication system. The user equipment determines the CSI, based on information about a CPICH. The CSI comprises at least one of a CQI, a RI, a PCI and an HARQ ACK/NACK. The user equipment transmits the CSI multiplexed into a plurality of TTIs to the base station so that a first CQI-S is transmitted in one TTI and a second CQI-S or a DTX codeword is transmitted in another TTI. The second CQI-S corresponds to a second layer.

主权项

1. A method in a user equipment for handling Channel State Information, CSI, in a communication system, wherein the method comprises:
determining the CSI, based on information about a Common Pilot Indicator Channel, CPICH, which CSI comprises at least one of a Channel Quality Information, CQI, a Rank Indicator, RI, a Precoding Channel Indicator, PCI, and an Hybrid Automatic Repeat reQuest ACKnowledgement/Not ACKnowledgement, HARQ ACK/NACK; and transmitting the CSI multiplexed into a plurality of Transmission Time Intervals, TTIs, to the base station, so that a first CQI-Single stream, CQI-S is transmitted in one TTI and a second CQI-S or a discontinuous transmission, DTX, codeword is transmitted in another TTI, wherein the second CQI-S corresponds to a second layer.