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Channel measurement techniques in discontinuous reception scenarios

專(zhuān)利號(hào)
US11503489B2
公開(kāi)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(lèi)
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(shū)

The DRX manager 820 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 DRX manager 820 also may set the UE to be in the limited active mode to perform the first scheduled channel measurement based on the determining that the change in the channel quality metric exceeds the threshold value for at least the predetermined period before the first channel measurement.

The CSI manager 825 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 channel quality metric manager 830 may determine that a change in a channel quality metric exceeds a threshold value during a predetermined period before the first channel measurement.

The transmitter 835 may transmit signals generated by other components of the device 805. In some examples, the transmitter 835 may be collocated with a receiver 810 in a transceiver module. For example, the transmitter 835 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10. The transmitter 835 may utilize a single antenna or a set of antennas.

權(quán)利要求

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