US 12,149,451 B2
Avoiding jitter in a communication system
Balázs Varga, Budapest (HU); János Farkas, Kecskemét (HU); György Miklós, Pilisborosjenö (HU); and János Harmatos, Budapest (HU)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/613,849
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Apr. 9, 2020, PCT No. PCT/EP2020/060281
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/239313, PCT Pub. Date Dec. 3, 2020.
Claims priority of provisional application 62/853,827, filed on May 29, 2019.
Prior Publication US 2022/0239600 A1, Jul. 28, 2022
Int. Cl. H04L 47/283 (2022.01); H04L 47/2416 (2022.01); H04L 47/32 (2022.01); H04L 47/70 (2022.01)
CPC H04L 47/283 (2013.01) [H04L 47/2416 (2013.01); H04L 47/32 (2013.01); H04L 47/826 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for use in avoiding jitter in a communication network, the method comprising:
an ingress point of the communication network receiving packets of a packet stream, wherein the packets are to be delivered with an agreed fixed latency and each packet is received at the ingress point at a time within a particular time slot;
the ingress point, during at least a period of time, incrementing a slot counter value every T units of time, wherein T represents an amount of time between slots;
for each of the received packets, the ingress point creating a modified packet that includes the received packet and a slot identifier indicating the particular time slot in which the packet was received, wherein the slot identifier is the value of the slot counter at the time the ingress point received the packet; and
the ingress point transmitting the modified packets towards an egress point of the communication network, wherein the ingress point and the egress point share the same value of T for incrementing the slot counter value.