Patent · US Active

Random access handling of a UE

US12432678B2 · kind B2 · utility

0Cited by

0References

36Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Olof Liberg · Stockholm, SE
Anders Westergren · Falköping, SE
Christian Skärby · Stockholm, SE
Fredrik Huss · Sundbyberg, SE
Sven Hellsten · Täby, SE
Tomas Svadling · Fållan, SE

Key dates

Filing date	Dec 18, 2020
Grant date	Sep 30, 2025
Priority date	—
Expiry date	Feb 18, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04W74/0833
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

There is provided mechanisms for random access handling of a UE. A method is performed by a network node. The method comprises receiving, from the UE during a first RAO, a first RA preamble, whilst refraining from responding to the first RA preamble. The method comprises transmitting, towards the UE and without the network node first having received any retransmitted RA preamble from the UE, one RAR for each of N possible RA preambles, where each RAR comprises a TA command corresponding to a TA value estimated for the first RA preamble. The method comprises receiving, from the UE during a further RAO, a retransmitted RA preamble. The method comprises determining whether the TA value for the retransmitted RA preamble matches the TA value for the first RA preamble or not.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.