Beam determination for control channel reception

Abstract

Devices, systems, and methods for use in a wireless transmit / receive unit (WTRU). A main radio (MR) beam is activated. A low-power wakeup signal (LP-WUS) which comprises a wakeup indication is received. A determination is made that the activated MR beam is invalid. A MR beam associated with a low-power radio (LR) beam is selected, based on the activated MR beam being invalid. A transmission is received on the selected MR beam. Some implementations include determining that the activated MR beam is invalid based on an elapsed time since configuration of the activated MR beam. Some implementations include determining that the activated MR beam is invalid based on a measurement of the LR beam associated with the activated MR beam. In some implementations, the measurement comprises a measurement of an LP-SS transmitted on the LR beam.

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