The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
May. 11, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Jing Rao, Sollentuna, SE;
Jonas Karlsson, Upplands Väsby, SE;
Bo Göransson, Sollentuna, SE;
Torsten Carlsson, Lund, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
Systems and methods for efficient scheduling of Random Access Channel (RACH) occasions in a cellular communications system are provided. In one embodiment, a method performed by a base station comprises transmitting Synchronization Signal Blocks (SSBs) on respective transmit beams in accordance with a beam sweeping scheme. The SSBs are mapped to one or more RACH occasions in accordance with an N-to-1 mapping scheme where N is greater than 1. The method further comprises, for each RACH occasion, processing receive signals from at least a subset of antenna elements in an antenna array of the base station using respective narrowband receivers, thereby providing narrowband receive signals, and performing, based on the narrowband receive signals, random access preamble detection for multiple beam directions that correspond to at least a subset of the transmit beams on which at least a subset of the SSBs to which the RACH occasion is mapped were transmitted.