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US 10,952,167 B2Granted
Technique for performing device-to-device operation
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsMuhammad Kazmi, Iana Siomina, Santhan Thangarasa
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Abstract
Methods and Devices for performing a device-to-device, D2D, operation are disclosed. A first reference timing for each of two or more non-terrestrial synchronization sources is obtained. Further a second reference timing of a terrestrial synchronization source is obtained. One of the non-terrestrial synchronization sources is determined based on a comparison between the first reference timings and the second reference timing, and the D2D operation is performed using the first reference timing of the determined non-terrestrial synchronization source.
Claims18
A method of performing a device-to-device, D2D, operation, the method comprising:
- for each of two or more non-terrestrial synchronization sources, obtaining a first reference timing of the corresponding non-terrestrial synchronization source;
- obtaining a second reference timing of a terrestrial synchronization source;
- determining one of the two or more non-terrestrial synchronization sources based on a comparison between the first reference timings and the second reference timing;
- and
- performing the D2D operation using the first reference timing of the determined non-terrestrial synchronization source,
- wherein the comparison includes for each of the non-terrestrial synchronization sources, determining a relation between the first reference timing of the corresponding non-terrestrial synchronization source and the second reference timing, and
- wherein using the first reference timing of the determined non-terrestrial synchronization source further includes correcting the first reference timing depending on the corresponding relation.
4 more elements
A method of performing a device-to-device, D2D, operation, the method comprising:
- for each of two or more non-terrestrial synchronization sources, obtaining a first reference timing of the corresponding non-terrestrial synchronization source;
- obtaining a second reference timing of a terrestrial synchronization source;
- determining one of the two or more non-terrestrial synchronization sources based on a comparison between the first reference timings and the second reference timing;
- and
- performing the D2D operation using the first reference timing of the determined non-terrestrial synchronization source,
- wherein the comparison includes for each of the non-terrestrial synchronization sources, determining a relation between the first reference timing of the corresponding non-terrestrial synchronization source and the second reference timing, and
- wherein the one non-terrestrial synchronization source is determined if the corresponding relation fulfils a predefined margin and/or includes a minimum among the relations for the non-terrestrial synchronization sources.
4 more elements
A device for performing a device-to-device, D2D, operation, the device comprising:
- a processor;
- and
- a memory storing program code that is executed by the processor to perform operations comprising:
- for each of two or more non-terrestrial synchronization sources, obtaining a first reference timing of the corresponding non-terrestrial synchronization source;
- obtaining a second reference timing of a terrestrial synchronization source;
- determining one of the two or more non-terrestrial synchronization sources based on a comparison between the first reference timings and the second reference timing;
- and
- performing the D2D operation using the first reference timing of the determined non-terrestrial synchronization source,
- wherein the comparison includes for each of the non-terrestrial synchronization sources, determining a relation between the first reference timing of the corresponding non-terrestrial synchronization source and the second reference timing, and
- wherein using the first reference timing of the determined non-terrestrial synchronization source further includes correcting the first reference timing depending on the corresponding relation.
7 more elements
A device for performing a device-to-device, D2D, operation, the device comprising:
- a processor;
- and
- a memory storing program code that is executed by the processor to perform operations comprising:
- for each of two or more non-terrestrial synchronization sources, obtaining a first reference timing of the corresponding non-terrestrial synchronization source;
- obtaining a second reference timing of a terrestrial synchronization source;
- determining one of the two or more non-terrestrial synchronization sources based on a comparison between the first reference timings and the second reference timing;
- and
- performing the D2D operation using the first reference timing of the determined non-terrestrial synchronization source,
- wherein the comparison includes for each of the non-terrestrial synchronization sources, determining a relation between the first reference timing of the corresponding non-terrestrial synchronization source and the second reference timing, and
- wherein the one non-terrestrial synchronization source is determined if the corresponding relation fulfils a predefined margin and/or includes a minimum among the relations for the non-terrestrial synchronization sources.
7 more elements
Dependencies are inferred from the claim text.