Granted Patent B2

US 12,659,822 · App. 17/586,866 · Granted Jun 16, 2026

Inventors: Thomas Fehrenbach (Berlin, DE); Baris Göktepe (Berlin, DE); Cornelius Hellge (Berlin, DE); Thomas Wirth (Berlin, DE); Thomas Schierl (Berlin, DE); Nithin Srinivasan (Berlin, DE)

Assignee: Koninklijke Philips N.V.

H04W36/00837H04W36/304H04W36/362

Abstract

Claims (85)

1 . An apparatus, comprising:

a transceiver circuit;

a processor circuit; and

a memory,

wherein the memory is arranged to store instructions,

wherein the processor circuit is arranged to execute the instructions,

wherein execution of the instructions causes the processor circuit to control the apparatus to communicate via the transceiver circuit with a device in a wireless communication system,

wherein the wireless communication system comprises a plurality of cells,

wherein the apparatus communicates with the device in a first cell among the plurality of cells,

wherein the apparatus configures the device with a plurality of measurement periods, and at least one threshold,

wherein the at least one threshold is for at least one channel condition for a second cell of the plurality of cells,

wherein the device is arranged to select one of the plurality of measurement periods based on the at least one threshold,

wherein the device is arranged to measure the at least one channel condition for the second cell over the selected one of the plurality of measurement periods when the device enters into a handover event from the first cell to the second cell.

2 . The apparatus of claim 1 , wherein the apparatus is arranged to provide to the device a hierarchical configuration for the plurality of measurement periods,

wherein the hierarchical configuration is represented by at least two information elements,

wherein a first information element of the at least two information elements indicates a hierarchical level,

wherein a second information element of the at least two information elements indicates the at least one threshold.

3 . The apparatus of claim 2 , wherein the at least one threshold comprises a minimum threshold and a maximum threshold, wherein the second information element indicates the minimum threshold and the maximum threshold.

4 . The apparatus of claim 2 , wherein the apparatus is arranged to provide to the device a second hierarchical configuration for the plurality of measurement periods for a third cell among the plurality of cells.

5 . The apparatus of claim 1 , wherein the apparatus is arranged to configure the device with the plurality of measurement periods and the at least one threshold via a Radio Resource Control (RRC) message before an onset of the handover event.

6 . The apparatus of claim 1 , wherein the handover event comprises a conditional handover, and wherein the device is arranged to execute the conditional handover when at least one predefined condition is satisfied over a defined period when entering into the handover event.

7 . The apparatus of claim 5 , wherein the selected one of the plurality of measurement periods and the defined period are set based on a mobility of the device.

8 . The apparatus of claim 7 , wherein:

when the mobility of the device is less than a first mobility threshold, the selected one of the plurality of measurement periods is set to a first value and the defined period is set to a second value,

when the mobility of the device is greater than the first threshold, the selected one of the plurality of measurement periods is set to a third value and the defined period is set to a fourth value,

the first value is greater than the third value, and

the second value is less than the fourth value.

9 . The apparatus of claim 1 ,

wherein the apparatus is arranged to operate at least the first cell,

wherein the apparatus comprises at least one of:

a macro cell base station,

a small cell base station,

a central unit of a base station,

a distributed unit of a base station,

a road side unit,

a user equipment,

a group leader,

a relay,

a remote radio head,

an Access and Mobility Management Function,

a Session Management Function,

a core network entity,

a mobile edge computing entity,

a network slice, and

a transmission/reception point, wherein the transmission/reception point enables an item to communicate using the wireless communication network.

10 . A device, comprising:

a transceiver circuit;

a processor circuit; and

a memory,

wherein the memory is arranged to store instructions,

wherein the processor circuit is arranged to execute the instructions,

wherein execution of the instructions causes the processor circuit to control the device to communicate via the transceiver circuit with an apparatus in a wireless communication system,

wherein the wireless communication system comprises a plurality of cells,

wherein the device communicates with the apparatus in a first cell among the plurality of cells,

wherein the device is provided with a plurality of measurement periods, and at least one threshold,

wherein the at least one threshold is for at least one channel condition for a second cell of the plurality of cells,

wherein the processor is arranged to select one of the plurality of measurement periods based on the at least one threshold,

wherein the processor is arranged to measure the at least one channel condition for the second cell over the selected one of the plurality of measurement periods when the device enters into a handover event from the first cell to the second cell.

11 . The device of claim 10 , wherein the device is arranged to receive a hierarchical configuration for the plurality of measurement periods,

wherein the hierarchical configuration is represented by at least two information elements,

wherein a first information element of the at least two information elements indicates a hierarchical level,

wherein a second information element of the at least two information elements indicates the at least one threshold.

12 . The device of claim 11 , wherein the at least one threshold includes a minimum threshold and a maximum threshold, wherein the second information element indicates the minimum threshold and the maximum threshold.

13 . The device of claim 11 , wherein the device is arranged to change from a first configuration to a second configuration based on the at least one channel condition for the second cell.

14 . The device of claim 11 , wherein the device comprises an aerial vehicle or a drone, and wherein the device is arranged to change from a first configuration to a second configuration based on one or more of a power saving criterion, a hovering altitude of the device, and a mobility speed of the device.

15 . The device of claim 14 , wherein the device is arranged to select the selected one of the plurality of measurement periods based on the device's hovering altitude, wherein the selected one of the plurality of measurement periods is less for a higher altitude than for a lower altitude.

16 . The device of claim 10 , wherein the handover event comprises a conditional handover, and wherein the device is arranged to execute the conditional handover when at least one predefined condition is satisfied over a defined period when entering into the handover event.

17 . The device of claim 16 , wherein the selected one of the plurality of measurement periods and the defined period are based on a mobility of the device.

18 . The device of claim 16 , wherein:

when the mobility of the device is less than a first mobility threshold, the selected one of the plurality of measurement periods is set to a first value and the defined period is set to a second value,

when the mobility of the device is greater than the first threshold, the selected one of the plurality of measurement periods is set to a third value and the defined period is set to a fourth value,

the first value is greater than the third value, and

the second value is less than the fourth value.

19 . A method for a wireless communication system, wherein the wireless communication system comprises a plurality of cells, the method comprising:

communicating with a device in a first cell among the plurality of cells in the wireless communication system; and

providing the device with a plurality of measurement periods, and at least one threshold,

wherein the at least one threshold is for at least one channel condition for a second cell of the plurality of cells,

wherein the device is arranged to select one of the plurality of measurement periods based on the at least one threshold,

wherein the device is arranged to measure the at least one channel condition for the second cell over the selected one of the plurality of measurement periods when the device enters into a handover event from the first cell to the second cell.

20 . A method for a wireless communication system, wherein the wireless communication system comprises a plurality of cells, the method comprising:

communicating with an apparatus in a first cell among the plurality of cells in the wireless communication system;

receiving a plurality of measurement periods, and at least one threshold, wherein the at least one threshold is for at least one channel condition for a second cell of the plurality of cells;

entering a handover event from the first cell to the second cell;

selecting one of the plurality of measurement periods based on the at least one threshold; and

measuring the at least one channel condition for the second cell over the selected one of the plurality of measurement periods upon the device entering into the handover event.

Assignments (4)

Priority Claims (1)

Continuity (2)

References Cited (18)