Processing Uplink Signals in High Speed Scenario

A method performed by a network node, where the network node is connected to a plurality of antenna nodes that are located along a path where a plurality of wireless communication devices are located, the method comprising:

• controlling the antenna nodes to maintain reception radio lobes substantially along the path such that the wireless communication devices can communicate with the network node via the reception radio lobes;
• detecting a radio frequency (RF) signal;
• determining that the detected RF signal originates from a wireless communication device of a specific subset among said plurality of wireless communication devices, said specific subset comprising wireless communication devices that are associated with a common Doppler radio frequency characteristic;
• and
• processing the detected RF signal, said processing comprising a utilization of said Doppler radio frequency characteristic that is associated with said specific subset of wireless communication devices.

A network node configured to be connected to a plurality of antenna nodes that are located along a path where a plurality of wireless communication devices are located, the network node comprising input/output circuitry, a processor and a memory, said memory containing instructions executable by said processor whereby said network node is operative to:

• control the antenna nodes to maintain reception radio lobes substantially along the path such that the wireless communication devices can communicate with the network node via the reception radio lobes;
• detect a radio frequency (RF) signal;
• determine that the detected RF signal originates from a wireless communication device of a specific subset among said plurality of wireless communication devices, said specific subset comprising wireless communication devices that are associated with a common Doppler radio frequency characteristic;
• and
• process the detected RF signal, said processing comprising a utilization of said Doppler radio frequency characteristic that is associated with said specific subset of wireless communication devices.

A non-transitory computer-readable medium comprising, stored thereupon, a computer program comprising instructions that, when executed on at least one processor in a network node that is connected to a plurality of antenna nodes that are located along a path where a plurality of wireless communication devices are located, cause the network node to:

• control the antenna nodes to maintain reception radio lobes substantially along the path such that the wireless communication devices can communicate with the network node via the reception radio lobes;
• detect a radio frequency (RF) signal;
• determine that the detected RF signal originates from a wireless communication device of a specific subset among said plurality of wireless communication devices, said specific subset comprising wireless communication devices that are associated with a common Doppler radio frequency characteristic;
• and
• process the detected RF signal, said processing comprising a utilization of said Doppler radio frequency characteristic that is associated with said specific subset of wireless communication devices.