公开(公告)号：US12150052B2

公开(公告)日：2024-11-19

申请号：US17448440

申请日：2021-09-22

Applicant: Apple Inc.

Inventor： Kenan Kocagoez ,  Franz Eder

IPC: H04W52/02 ,  H04W24/08

Abstract: A user equipment (UE) is configured to determine a probability metric for a likelihood of a beam failure event at the UE, implement a beam management power saving scheme based on the probability metric and process a portion of network scheduled beam recovery resources within a time window. A UE may also be configured to generate a radio link monitoring (RLM) block error rate (BLER) metric associated with a beam, determine that the RLM BLER metric is below a threshold value and disable beam failure detection (BFD) and candidate beam detection (CBD) procedures at the UE in response to determining that the RLM BLER metric is below the threshold value.

公开(公告)号：US11012132B2

公开(公告)日：2021-05-18

申请号：US16488618

申请日：2018-03-12

Applicant: Apple Inc.

Inventor： Yeong-Sun Hwang ,  Franz Eder ,  Ziyang Ju

IPC: H04B7/06 ,  H04L25/02

Abstract: A method and apparatus for three-dimensional beamforming, which include an estimation of a channel spatial coherence for a beam space of a device based on a plurality of non-precoded reference signals such that the beam space includes a plurality of beam subspaces based on the estimated channel spatial coherence and each of the plurality of beam subspaces include a beam direction representative of a respective beam subspace of the plurality of beam subspaces. Furthermore, a selection a beam subspace of the plurality of beam subspaces based on a channel quality metric of the beam direction that is representative of the beam subspace is included.