Patent ID: 9380636
Filing Date: 2016-06-28
CPC Classification: H04B,H04W

Claim Text:
1. A method performed by a first network node of a cellular system for communication between the first network node and a second network node over a communication channel comprising a twisted pair wire, the method comprising: receiving, over the communication channel comprising the twisted pair wire, an intermediate frequency signal from the second network node, which intermediate frequency signal has been converted by the second network node from a high frequency signal having a frequency higher than a frequency of the intermediate frequency signal; converting the intermediate frequency signal to a low frequency signal having a frequency lower than the frequency of the intermediate frequency signal; and transmitting the low frequency signal from a transceiver of the first network node to a base band unit, in response to converting the intermediate frequency signal to the low frequency signal, wherein the base band unit decodes the low frequency signal, and wherein transmitting the low frequency signal comprises transmitting the low frequency signal from the transceiver of the first network node to the base band unit that decodes the low frequency signal, in response to converting the intermediate frequency signal to the low frequency signal at a down-converter of the first network node that is connected to the transceiver of the first network node.