Synchronization signal measurement in a non-terrestrial network
AssigneeGoogle Inc.
InventorsMing-Hung Tao, Chih-Hsiang Wu
Life of this patent
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Abstract
A UE receives, from a non-terrestrial network (NTN), a measurement configuration that indicates (i) a timing pattern according to which a signal source associated with the NTN transmits a synchronization signal and (ii) a timing parameter related to a change in timing alignment between the UE and the signal source. The UE receives, from the signal source, the synchronization signal in accordance with the timing pattern and the timing parameter.
Claims20
A method for synchronization signal measurement implemented in a user equipment (UE), the method comprising:
- receiving, by the UE from a non-terrestrial network (NTN), a measurement configuration that indicates (i) a timing pattern according to which a signal source associated with the NTN transmits a synchronization signal and (ii) a timing parameter related to a change in timing alignment between the UE and the signal source;
- and
- receiving, by the UE from the signal source, the synchronization signal at a synchronization signal reception time based on the timing pattern and a time shift depending on (a) the timing parameter, and (b) a time that elapsed since the receiving of the measurement configuration.
A user equipment (UE) comprising processing hardware including a receiver, a transmitter and a processor configured
- to receive, from a non-terrestrial network (NTN), a measurement configuration that indicates (i) a timing pattern according to which a signal source associated with the NTN transmits a synchronization signal and (ii) a timing parameter related to a change in timing alignment between the UE and the signal source;
- and
- to receive, from the signal source, the synchronization signal at a synchronization signal reception time as specified in the timing pattern and adjusted using
- the timing parameter, and
- a number of units of time that elapsed since the receiving of the measurement configuration.
A method performed by a non-terrestrial network (NTN) node serving a user equipment (UE) for configuring a synchronization signal measurement at the UE, the method comprising:
- receiving, by the NTN node, information related to movement of a neighbor NTN node;
- and
- transmitting, by the NTN node, a measurement configuration generated in view of the information, the measurement configuration indicating (i) a timing pattern according to which the neighbor NTN node transmits a synchronization signal and (ii) a timing parameter related to a change in timing alignment between the UE and the neighbor NTN node.
A non-terrestrial network (NTN) node comprising processing hardware including a receiver, a transmitter and a processor configured
- to receive information related to movement of a neighbor NTN node;
- and
- to transmit, to a user equipment (UE), a measurement configuration generated in view of the information, the measurement configuration indicating (i) a timing pattern according to which the neighbor NTN node transmits a synchronization signal and (ii) a timing parameter related to a change in timing alignment between the UE and the neighbor NTN node.
Dependencies are inferred from the claim text.