US 12,341,570 B2
Network using asymmetric uplink and downlink baud rates to reduce crosstalk
Seid Alireza Razavi Majomard, Belmont, CA (US); Ragnar Hylnur Jonsson, Aliso Viejo, CA (US); and David Shen, Saratoga, CA (US)
Assigned to Marvell Asia Pte Ltd, Singapore (SG)
Filed by Marvell Asia Pte Ltd, Singapore (SG)
Filed on Mar. 22, 2024, as Appl. No. 18/614,329.
Application 18/614,329 is a continuation of application No. 17/549,744, filed on Dec. 13, 2021, granted, now 11,943,005.
Claims priority of provisional application 63/124,510, filed on Dec. 11, 2020.
Prior Publication US 2024/0235611 A1, Jul. 11, 2024
Int. Cl. H04B 3/32 (2006.01); H04B 3/21 (2006.01)
CPC H04B 3/32 (2013.01) [H04B 3/21 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication system for communicating via a plurality of cables, including a first cable and a second cable, the communication system comprising:
a first receiver configured to receive a first Ethernet signal at a first baud rate via the first cable, the first baud rate conforming with a maximum bandwidth rating of the first cable;
a first lowpass filter configured to filter the first Ethernet signal, the first lowpass filter having a cutoff frequency; and
a first transmitter configured to transmit a second Ethernet signal at a second baud rate via the second cable concurrently with reception of the first Ethernet signal via the first cable, the second baud rate exceeding a maximum bandwidth rating of the second cable and the maximum bandwidth rating of the first cable, the second baud rate, which exceeds the maximum bandwidth rating of the second cable, being selected to mitigate degradation of the first Ethernet signal in the first cable, the degradation caused by transmission of the second Ethernet signal creating alien crosstalk in the first cable, by reducing power levels of the alien crosstalk at first frequencies below the cutoff frequency of the first lowpass filter as compared to power levels of the alien crosstalk at second frequencies above the cutoff frequency of the first lowpass filter.