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US 9,072,046 B2Granted
Precoding matrix index feedback interaction with discontinuous reception
AssigneeBlackBerry Limited
InventorsZhijun Cai, James Earl Womack, Yi Yu
Life of this patent
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Abstract
A user equipment (UE) is provided that includes a processor configured to transmit a precoding matrix index (PMI) using one of an assigned periodic PMI reporting resource that precisely aligns with the start of an on-duration of a discontinuous reception (DRX) operation mode of the UE and a first assigned periodic PMI reporting after the start of an on-duration of a discontinuous reception (DRX) operation mode of the UE.
Claims11
A user equipment (UE), comprising:
- a transmitter;
- a receiver;
- and
- one or more processors configured to:
- receive, using the receiver, a resource configuration, the resource configuration indicating a periodic reporting resource for transmitting precoding matrix indexes (PMIs);
- control the receiver in the UE to have an active time, wherein the active time includes at least a time period corresponding to an on duration and a time period when an inactivity timer is running;
- control the transmitter to transmit a PMI using the PMI reporting resource that immediately follows the on duration;
- and
- control the transmitter to not transmit PMIS when not in the active time.
6 more elements
A method for user equipment (UE) including a receiver and a transmitter, comprising:
- receiving using the receiver, a resource configuration, the resource configuration indicating a periodic reporting resource for transmitting precoding matrix indices (PMIs);
- controlling the receiver in the UE to have an active time, wherein the active time includes at least a time period corresponding to an on duration and a time period when an inactivity timer is running;
- controlling the transmitter to transmit an PMI using the PMI reporting resource that immediately follows the on duration;
- and
- controlling the transmitter to not transmit PMIs when not in the active time.
2 more elements
Dependencies are inferred from the claim text.