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US 8,818,438 B2Granted
Rank indicator transmission during discontinuous reception
AssigneeBlackBerry Limited
InventorsYi Yu, James Earl Womack, Zhijun Cai
Life of this patent
Estimating the term…
Abstract
A user equipment (UE) is disclosed. The UE includes a processor configured to transmit a rank indicator (RI) using one of an assigned periodic RI reporting resource that precisely aligns with the start on an on-duration of a discontinuous reception (DRX) operation mode of the UE and a first assigned periodic RI reporting resource after the start of the on-duration.
Claims27
An enhanced node B (eNB), comprising:
- memory;
- network connectivity;
- and
- a processor configured to transmit a discontinuous reception (DRX) configuration to a user equipment (UE), the DRX configuration indicating an on-duration, the on-duration corresponding to a time interval where the UE receives a downlink control channel;
- the processor further configured to transmit a rank indicator (RI) resource configuration to the user equipment (UE), the resource configuration indicating a periodic RI reporting resource;
- the processor is further configured to transmit data to the UE;
- the processor further configured to determine that the data was not received successfully by the UE;
- the processor further configured to determine a time period for one or more potential retransmissions;
- the processor further configured to receive RI using the RI reporting resource until the determined time period ends.
6 more elements
A method, comprising:
- transmitting, by an eNB, a discontinuous reception (DRX) configuration to a user equipment (UE), the DRX configuration indicating an on-duration, the on-duration corresponding to a time interval where the UE receives a downlink control channel;
- transmitting, by the eNB, a rank indicator (RI) resource configuration to the UE, the resource configuration indicating a periodic RI reporting resource;
- transmitting, by the eNB, data to the UE;
- determining, by the eNB, that the data was not received successfully by the UE;
- determining, by the eNB, a time period for one or more potential retransmissions;
- and
- receiving, by the eNB, RI using the RI reporting resource until the determined time period ends.
4 more elements
A computer program product encoded on a non-transitory medium, the product comprising computer readable instructions for causing one or more processors to perform operations comprising:
- transmitting, by an eNB, a discontinuous reception (DRX) configuration to a user equipment (UE), the DRX configuration indicating an on-duration, the on-duration corresponding to a time interval where the UE receives a downlink control channel;
- transmitting, by the eNB, a rank indicator (RI) resource configuration to the UE, the resource configuration indicating a periodic RI reporting resource;
- transmitting, by the eNB, data to the UE;
- determining, by the eNB, that the data was not received successfully by the UE;
- determining, by the eNB, a time period for one or more potential retransmissions;
- and
- receiving, by the eNB, RI using the RI reporting resource until the determined time period ends.
4 more elements
Dependencies are inferred from the claim text.