Configuration of rank indicator reporting instances
AssigneeTexas Instruments Incorporated
InventorsRunhua Chen, Tarik Muharemovic, Eko N Onggosanusi
Life of this patent
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Abstract
A method for setting a periodicity and an offset in rank indicator (RI) reporting in a user equipment in a wireless communication system receives a radio resource control (RRC) signal from a base station, decodes a RI periodicity and offset configuration index, sets the periodicity and offset in accordance with said decoded periodicity and offset configuration index and reports a RI according to the set periodicity and offset. The periodicity is an integer and reporting a RI reports with equal the product of the periodicity and a period of reporting of the channel quality indicator (CQI) and the precoding matrix indicator (PMI).
Claims6
A user equipment in a wireless communication system operable to:
- receive a radio resource control (RRC) signal from a base station;
- decode a rank indicator (RI) periodicity and offset configuration index IRI transmitted in the received RRC signal;
- set a periodicity MRI and an offset NOFFSET,RI in accordance with said decoded IRI, where MRI is an integer;
- and
- report a RI to the base station via a radio frequency signal according to said set periodicity MRI and offset NOFFSET,RI having a period equal to the product of the periodicity MRI multiplied by a period of reporting of a channel quality indicator (CQI) and a precoding matrix indicator (PMI).
A user equipment in a wireless communication system operable to:
- receive a radio resource control (RRC) signal from a base station;
- decode a RI periodicity and offset configuration index IRI transmitted in a received RRC signal;
- set the periodicity MRI and the offset NOFFSET,RI by setting the offset NOFFSET,RI equal to −IRI+n, wherein n is a positive integer constant;
- and
- report a RI to the base station via a radio frequency signal according to said set periodicity MRI and offset NOFFSET,RI.
Dependencies are inferred from the claim text.