US 12,408,129 B2
Avoiding contention between synchronization packets and in-phase and quadrature (IQ) packets communicated over fronthaul of a radio access network
Stuart D. Sandberg, Acton, MA (US); and Irfaan Ahamed Salahuddeen, Acton, MA (US)
Assigned to Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed by Outdoor Wireless Networks LLC, Richardson, TX (US)
Filed on Nov. 25, 2020, as Appl. No. 17/104,985.
Claims priority of provisional application 62/940,767, filed on Nov. 26, 2019.
Prior Publication US 2021/0160802 A1, May 27, 2021
Int. Cl. H04W 56/00 (2009.01); H04L 27/38 (2006.01); H04W 72/0446 (2023.01); H04W 74/0833 (2024.01); H04W 88/08 (2009.01)
CPC H04W 56/0015 (2013.01) [H04L 27/3863 (2013.01); H04W 56/0045 (2013.01); H04W 56/005 (2013.01); H04W 72/0446 (2013.01); H04W 74/0833 (2013.01); H04W 88/085 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A radio access network (RAN) system comprising:
a plurality of nodes, at least some of which are communicatively coupled to each other via a fronthaul network;
wherein the RAN system is configured to wirelessly communicate with user equipment (UE); and
wherein the system is configured so that, while at least one of the nodes of the RAN system receives synchronization packets transmitted from a timing master over the fronthaul network at a synchronization packet transmission rate and synchronization packet phase, said at least one of the nodes discovers the synchronization packet transmission phase of the synchronization packets being transmitted from the timing master and selectively delays, using the discovered synchronization packet transmission phase, transmission of at least some in-phase and quadrature (IQ) data over the fronthaul network in order to avoid contention with at least some of the synchronization packets transmitted from the timing master over the fronthaul network.