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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.

說明書

FIG. 6 illustrates an example of a DRX cycle with a limited active mode portion 600 that supports channel measurement techniques in discontinuous reception scenarios in accordance with aspects of the present disclosure. In some examples, DRX cycle with a limited active mode portion 600 may implement aspects of wireless communications system 100 or 200. In this example, a CSI-RS configuration may provide CSI-RS arrivals 605 at periodic intervals, as indicated with CSI-0 610-a and CSI-1 610-b. In some cases, CSI-1 610-b may be an example of a first reference signal for a first channel measurement at the UE, and CSI-0 610-a may be an example of a prior reference signal.

權(quán)利要求

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