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Channel measurement techniques in discontinuous reception scenarios

專利號(hào)
US11503489B2
公開日期
2022-11-15
申請(qǐng)人
QUALCOMM Incorporated(US CA San Diego)
發(fā)明人
Pranay Sudeep Rungta; Shailesh Maheshwari; Sanjana Vijaykumar Kalyanappagol; Ankit Verma
IPC分類
H04W76/28; H04W24/10; H04B17/318; H04B7/06; H04W72/04; H04L5/00; H04B17/336
技術(shù)領(lǐng)域
ue,drx,channel,csi,may,in,be,reception,or,mode
地域: CA CA San Diego

摘要

Methods, systems, and devices for wireless communications are described for configuring a user equipment (UE) for reference signal measurement while operating according to a discontinuous reception (DRX) configuration. The DRX configuration may include periodic DRX ON-durations, during which the UE is to be in an active mode for reception and transmission of signals, and between which the UE may transition to a low-power inactive mode. One or more reference signals may be scheduled for transmission by the base station during periods in which the UE may be in the inactive mode, and the UE may skip monitoring one or more of the reference signals while in the inactive mode. For one or more reference signal occasions, the UE may determine, based at least in part on a change in a channel quality metric, to be in a limited active mode in order to measure the reference signal.

說(shuō)明書

At 1405, the UE may receive a discontinuous reception cycle configuration from a base station that indicates a set of discontinuous reception cycles within a discontinuous reception period that each have an ON-duration during which the UE is to be in an active mode to monitor for transmissions from the base station, and where the UE transitions to an inactive mode after one or more of the ON-durations until a subsequent ON-duration. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed by a DRX manager as described with reference to FIGS. 7 through 10.

At 1410, the UE may identify a channel measurement schedule that indicates a timing for one or more channel measurements of the UE, where at least a first channel measurement occurs when the UE is to be in the inactive mode of the discontinuous reception cycle configuration. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed by a CSI manager as described with reference to FIGS. 7 through 10.

At 1415, the UE may determine that at least a predetermined number of prior channel measurements have been skipped based on the UE being in the inactive mode during corresponding scheduled channel measurements of the channel measurement schedule, where the predetermined period corresponds to the predetermined number of prior channel measurements. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed by a channel quality metric manager as described with reference to FIGS. 7 through 10.

權(quán)利要求

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