公开(公告)号：US20230262819A1

公开(公告)日：2023-08-17

申请号：US18110102

申请日：2023-02-15

Applicant: Nokia Technologies Oy

Inventor： Ali KARIMIDEHKORDI ,  Samantha CAPORAL DEL BARRIO ,  Benny VEJLGAARD ,  Simon SVENDSEN

IPC: H04W76/19 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04W76/19 ,  H04B7/088 ,  H04L5/0051

Abstract: An apparatus including: circuitry for receiving reference signals including a plurality of channel synchronization signal blocks and/or state information reference signals on a downlink channel; circuitry for measuring received signal power and/or quality level of said reference signals; circuitry for estimating arrival directions or an arrival antenna panel for a plurality of beams associated with said reference signals; circuitry for estimating, based on at least the received signal power and/or quality level, a required transmission power for a random access channel preamble for each beam; circuitry for selecting, in response to detecting a failure of a serving beam, another of said beams according to spatial diversity and/or required transmission power; and circuitry for sending the random access channel preamble on the selected beam.

公开(公告)号：US20220338073A1

公开(公告)日：2022-10-20

申请号：US17232053

申请日：2021-04-15

Applicant: Nokia Technologies Oy

Inventor： Ahmad AWADA ,  Christian ROM ,  Samantha CAPORAL DEL BARRIO ,  Ingo VIERING ,  Jedrzej STANCZAK

IPC: H04W36/00 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W80/02

Abstract: Improved techniques of beam management in a HO situation include receiving, at a source node from a candidate target node after receiving a measurement report from a UE prior to completion of a HO, a repetition configuration of a channel state information reference signal (CSI-RS) resource index to be used by the UE for random access. When beam refinement occurs during HO, a candidate target cell for HO provides the UE with a repetition configuration of CSI-RS resource index that will be selected and used by the UE for random access to the target cell. When beam refinement occurs before HO, the candidate target cell of handover provides the UE (e.g. during the handover preparation phase in case of conditional HO (CHO)) with the repetition configuration of CSI-RS resource index (or indices) whose transmission(s) is repeated while the UE is served by the source cell and before executing a handover.

公开(公告)号：US20210235359A1

公开(公告)日：2021-07-29

申请号：US17155751

申请日：2021-01-22

Applicant: Nokia Technologies Oy

Inventor： Samantha CAPORAL DEL BARRIO ,  Bo Holm BJERRUM ,  Christian ROM ,  Simon SVENDSEN

IPC: H04W40/08 ,  H04W40/20 ,  H04W56/00

Abstract: An apparatus, a method and a computer program is described comprising: receiving a plurality of synchronisation symbol blocks; classifying the received synchronisation symbol blocks based on delay relative to an expected reception time; and identifying one or more candidate line of sight paths on the basis of the delay relative to the expected reception time.