US 12,452,814 B2
Preconfigured uplink resources—configuration for TA validity in entire cell
Andreas Höglund, Solna (SE); Gerardo Agni Medina Acosta, Märsta (SE); Sandeep Narayanan Kadan Veedu, Täby (SE); and Emre Yavuz, Stockholm (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Dec. 21, 2023, as Appl. No. 18/393,131.
Application 18/393,131 is a continuation of application No. 17/599,285, granted, now 11,930,467, previously published as PCT/IB2020/052970, filed on Mar. 27, 2020.
Claims priority of provisional application 62/826,580, filed on Mar. 29, 2019.
Prior Publication US 2024/0129873 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 56/00 (2009.01)
CPC H04W 56/0045 (2013.01) 15 Claims
OG exemplary drawing
 
1. A method performed by a wireless device of a cellular communications system to determine timing advance, TA, validity, the method comprising:
obtaining a TA for a cell of the cellular communications system;
determining that a configuration comprising signaling bits activating a TA validation mechanism of a predefined set of TA validation mechanisms has not been received from a network node; and
responsive to determining that the configuration activating the TA validation mechanism of the predefined set of validation mechanisms has not been received, determining that the TA is valid for an entirety of the cell, wherein the TA validation mechanism is one of a Time Alignment Timer for idle mode, serving cell Reference Signal Received Power (RSRP) or Narrowband RSRP (NSRP) changes.