Patent ID: 9686651
Date: 2017-06-20
CPC Classifications: H04W

Claim:
1. A method for assisting in determining a position of a wireless device, the method being performed in a network node connected to a plurality of remote radio head devices via a combiner, wherein at least some of the plurality of remote radio head devices utilize a different manipulation scheme, from a set of manipulation schemes, in downconverting an uplink signal from the wireless device, in which a respective different manipulation scheme is utilized to identify a corresponding remote radio head device, the method comprising: receiving the uplink signal via the combiner, wherein the combiner combines the uplink signal received via the plurality of remote radio head devices; comparing a carrier frequency of the uplink signal with the set of manipulation schemes for a carrier frequency of uplink signals, corresponding to the different manipulation schemes used by the plurality of remote radio head devices to identify characteristics of the uplink signal received and downconverted at separate remote radio head devices; and providing a proximity indication that the position of the wireless device is in a vicinity of a particular remote radio head device based on which remote radio head device provides best recovery of the uplink signal and identifying the particular remote radio head device based on the manipulation scheme used to obtain the best recovery of the uplink signal.