Partial CQI feedback in wireless networks
AssigneeTexas Instruments Incorporated
InventorsZukang Shen, Tarik Muharemovic, Runhua Chen, Eko Nugroho Onggosanusi
Life of this patent
Estimating the term…
Abstract
Within a wireless network, feedback information from user equipment (UE) to a control node (eNodeB) is necessary to support various functions. A UE receives an allocation from the eNodeB comprising a plurality of periodic transmission instances for a channel quality indicator (CQI) and a schedule comprising a plurality of periodic transmission instances for a rank indicator (RI), wherein the CQI comprises RI and other CQI fields. The UE then transmits an RI without transmitting the other CQI fields in a transmission instance allocated for both RI and other CQI fields.
Claims32
A method comprising:
- receiving an allocation indicative of a plurality of periodic transmission instances for reporting a channel quality indicator (CQI);
- receiving an allocation indicative of a plurality of periodic transmission instances for reporting a rank indicator (RI);
- coding a first RI report with one of a rate (20, 1) or a rate (20, 2) coding scheme;
- and
- transmitting the coded first RI report without transmitting a CQI report in a first transmission instance allocated for both reporting an RI and reporting a CQI.
A user equipment (UE) comprising:
- a transceiver configured to receive an allocation indicative of a plurality of periodic transmission instances for reporting a channel quality indicator (CQI), and to receive an allocation indicative of a plurality of periodic transmission instances for reporting a rank indicator (RI);
- and
- a processor configured to code a first RI report with one of a rate (20, 1) or a rate (20, 2) coding scheme,
- wherein the transceiver is further configured to transmit the coded first RI report without transmitting a CQI report in a first transmission instance allocated for both reporting an RI and reporting a CQI.
Dependencies are inferred from the claim text.