Control channel signalling for triggering the independent transmission of a channel quality indicator

摘要

The invention suggests a method for providing control signalling in a communication system, comprising the steps performed by a base station of the communication system of generating a control channel signal comprising a transport format and a channel quality indicator trigger signal for triggering a transmission of a channel quality indicator by at least one terminal to the base station, and transmitting the generated control channel signal to at least one terminal, wherein said transport format is a predetermined format for user data transmission by the at least one terminal to the base station and said control channel signal indicates a predetermined mode for reporting the channel quality indicator to the base station, wherein the channel quality indicator transmission is to be triggered by the at least one terminal based on the channel quality indicator trigger signal.

主权项

1. An integrated circuit configured to control a mobile terminal, the integrated circuit comprising:
one or more input nodes, which, in operation receive a control channel signal from a base station, wherein the control channel signal comprises a Modulation and Coding Scheme (MCS) Index, information on resource blocks used for transmission from the mobile terminal to the base station, and a channel quality indicator trigger for triggering transmission of an aperiodic channel quality indicator report from the mobile terminal to the base station, and one or more output nodes, which, in operation output the aperiodic channel quality indicator report for transmission from the mobile terminal to the base station, wherein the one or more output nodes:
output the aperiodic channel quality indicator report without multiplexing the aperiodic channel quality indicator report with data to be transmitted from the mobile terminal via an Uplink Shared Channel (UL-SCH), in case when the channel quality indicator trigger is set and the control channel signal indicates a determined value of the MCS Index and also indicates a number of resource blocks that is smaller than or equal to a determined number of resource blocks, andoutput the aperiodic channel quality indicator report while multiplexing the aperiodic channel quality indicator report, with data to be transmitted from the mobile terminal via the UL-SCH, in case (a) when the channel quality indicator trigger is set and the control channel signal does not indicate the determined value of the MCS Index, or in case (b) when the channel quality indicator trigger is set and the control channel signal does not indicate a number of resource blocks that is smaller than or equal to the determined number of resource blocks.