US 12,335,076 B2
Cell edge scheduling arrangement for high subcarrier spacing
Kari Juhani Hooli, Oulu (FI); Esa Tiirola, Kempele (FI); and Kari Pekka Pajukoski, Oulu (FI)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/794,569
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Jan. 19, 2021, PCT No. PCT/EP2021/050973
§ 371(c)(1), (2) Date Jul. 21, 2022,
PCT Pub. No. WO2021/156045, PCT Pub. Date Aug. 12, 2021.
Claims priority of provisional application 62/970,276, filed on Feb. 5, 2020.
Prior Publication US 2023/0129410 A1, Apr. 27, 2023
Int. Cl. H04L 27/26 (2006.01)
CPC H04L 27/26025 (2021.01) [H04L 27/2605 (2013.01); H04L 27/2634 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of communications, comprising:
performing, by a gNB, measurements of a signal/channel received from a user equipment (UE);
determining, by the gNB, the signal/channel measurements indicate that at least a channel delay is too long and exceeds a channel delay threshold;
determining a first numerology parameter based at least on the signal/channel measurements;
based on at least the channel delay exceeding the channel delay threshold, configuring, by the gNB, the first numerology parameter for only control channels to enable at least symbol repetition and a modified cyclic prefix while using a same subcarrier spacing for both control and shared channels, wherein the first numerology parameter indicates cyclic prefix length, cyclic prefix timing, symbol timing, slot numbering, and timing of assignment, wherein the first numerology parameter is configured such that the first numerology parameter is set to a value of three and a second numerology parameter is set to a value of six, and the first numerology parameter is a time numerology parameter and the second numerology parameter is a transmission numerology parameter, wherein the second numerology parameter indicates subcarrier spacing configuration that includes subcarrier spacing, fast Fourier transform (FFT) time duration, inverse fast Fourier transform (IFFT) time duration, symbol time duration, sample rate, and timing advance, and wherein the transmission numerology parameter is a scaling factor which defines scaling for different numerologies;
determining a repetition factor of eight, the repetition factor being determined based at least on the first and second numerology parameters, and wherein the symbol repetition is based at least on the repetition factor; and
transmitting, by the gNB, a downlink signal/channel that is configured based at least on the symbol repetition and the modified cyclic prefix comprising a duration that is longer than a standard cyclic prefix and wherein the modified cyclic prefix is based on a summation of all cyclic prefixes.