Device for a cellular communications network and method of operating such device
AssigneeSkyfive AG
InventorsAlfons Schmitt, Michael Ohm, Uwe Doetsch
Life of this patent
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Abstract
The invention relates to a device (10) for a cellular communications network (1000), wherein said device (10) includes at least a processor (12), a memory (14) and a transceiver (16) and is configurable to: determine (300) a parameter (P) which characterizes a relative velocity (v_rel) of said device (10) with respect to a base station (110) of said cellular communications network (1000), and to modify (302) a timing of at least one uplink transmission (ul) from said device (10) to said base station (110) depending on said parameter (P).
Claims10
A device for a cellular communications network, wherein said device comprises:
- a processor;
- a memory;
- and
- a transceiver;
- and wherein the device is configurable to determine a parameter (P) which characterizes a relative velocity (v_rel) of said device with respect to a base station of said cellular communications network, wherein said device is configurable to receive from said base station timing information notifying the device which timing to apply to future uplink transmissions (ul) to said base station, wherein said device is configurable to modify a timing of at least one uplink transmission (ul) from said device to said base station depending on said parameter (P) and on said timing information received from said base station, and wherein said device is configurable to apply a timing advance adaptation algorithm with a feedback loop using the timing information received from said base station as feedback information for adapting a manner in which the parameter (P) is determined, wherein adapting the manner in which the parameter (P) is determined includes adapting a Doppler shift estimation and a timing advance estimation that is based on the Doppler shift estimation.
An aircraft comprising at least one device, wherein said device comprises:
- a processor;
- a memory;
- and
- a transceiver;
- and wherein the device is configurable to determine a parameter (P) which characterizes a relative velocity (v_rel) of said device with respect to a base station of said cellular communications network, wherein said device is configurable to receive from said base station timing information notifying the device which timing to apply to future uplink transmissions (ul) to said base station, wherein said device is configurable to modify a timing of at least one uplink transmission (ul) from said device to said base station depending on said parameter (P) and on said timing information received from said base station, and wherein said device is configurable to apply a timing advance adaptation algorithm with a feedback loop using the timing information received from said base station as feedback information for adapting a manner in which the parameter (P) is determined, wherein adapting the manner in which the parameter (P) is determined includes adapting a Doppler shift estimation and a timing advance estimation that is based on the Doppler shift estimation.
A method of operating a device for a cellular communications network, wherein said device includes at least a processor, a memory and a transceiver, and wherein said device determines a parameter (P) which characterizes a relative velocity (v_rel) of said device with respect to a base station of said cellular communications network, wherein said device receives from said base station timing information notifying the device which timing to apply to future uplink transmissions to said base station and modifies said timing of said at least one uplink transmission from said device to said base station depending on said parameter (P) and on said timing information received from said base station, and wherein said device is configurable to apply a timing advance adaptation algorithm with a feedback loop using the timing information received from said base station as feedback information for adapting a manner in which the parameter (P) is determined, wherein adapting the manner in which the parameter (P) is determined includes adapting a Doppler shift estimation and a timing advance estimation that is based on the Doppler shift estimation.
Dependencies are inferred from the claim text.