METHODS FOR ENERGY SAVING IN A CELLULAR NETWORK

Abstract

A method of energy saving in a cellular network, the method comprising: receiving, by the at least one first node, a trigger signal from one or more of at least one second node, and the network, and performing, by the at least one first node, at least one operation upon reception of the trigger signal.

Specification

Description:AS UPLOADED , Claims:We Claim:

1. A method of energy saving in a cellular network, the method comprising:
receiving, by the at least one first node, a trigger signal from one or more of at least one second node, and the network; and
performing, by the at least one first node, at least one operation upon reception of the trigger signal.

2. The method as claimed in claim 1, comprising: deactivating, by the at least one first node, at least one operation.

3. The method as claimed in claim 1, wherein the trigger signal is one of broadcasted and transmitted to the at least one first node.

4. The method as claimed in claim 1, wherein the at least one first node comprises one or more of at least one Base Station (BS), at least one Integrated Access and Backhaul (IAB) node, at least one relay, and at least one Distributed Unit (DU).

5. The method as claimed in claim 1, wherein the at least one second node comprises one or more of at least one User Equipment (UE), at least one IAB node, at least one DU, at least one Mobile Termination (MT) unit, at least one relay, and at least one BS.

6. The method as claimed in claim 5, wherein the UE is one of a connected UE, a non-connected UE, an inactive UE, and a new UE searching for a new BS.

7. The method as claimed in claim 1, wherein the at least one first node receives the trigger signal using at least one of:
a set of resources, wherein the set of resources are one of predefined in standards and indicated to the at least one second node, and
a dedicated receiver.

8. The method as claimed in claim 7, wherein the indication comprises signalling of at least one of a time resource, a frequency resource, a spatial resource, periodicity, ON-OFF cycle, and validity of the indication.

9. The method as claimed in claim 8, wherein the spatial resource comprises at least one of SSB index, beam index, beam pair index, reference signal index (RS-ID).

10. The method as claimed in 8, wherein the ON-OFF cycle comprises at least one of an ON duration, an OFF duration and a periodicity.

11. The method as claimed in 10, wherein the at least one first node monitors the trigger signal in the ON duration.

12. The method as claimed in claim 7, wherein the set of resources are indicated to the at least one second node by one of the at least one first node, and the network.

13. The method as claimed in claim 1, comprises at least one of signalling, by the at least one first node, at least one parameter for measurement and reporting; and
transmitting, by at least one first node, at least one signal for measurement.

14. The method as claimed in claim 13, wherein the at least one parameter comprises at least one of
at least one quantity to measure,
at least one quantity to report,
at least one event to trigger reporting,
scheduling for measurement, and
scheduling for reporting.

15. The method as claimed in claim 14, wherein at least one quantity to report comprises one or more of signal quality, location of at least one UE, identity of at least one signal measured, at least one quantity derived from at least one signal measured and direction of movement of the at least one UE.

16. The method as claimed in claim 1, wherein the trigger signal is one of a measurement report comprising the at least one quantity, a signal representing presence of a new UE, an indication signal, a predefined sequence, a Random Access Channel (RACH) signal, a low complexity wake up signal and a Sounding Reference Signal (SRS).

17. The method as claimed in claim 1, further comprises:
monitoring for a response and deactivation of the at least one operation when no response is received within a duration of time.

18. The method as claimed in claim 17, wherein the response is one of a measurement report and a Random Access Channel (RACH) signal.

19. The method as claimed in claim 17, wherein the duration is until expiry of a timer.

20. The method as claimed in claim 17, wherein the duration is with reference to one of time of reception of the trigger signal and time of performing of at least one operation.

21. The method as claimed in claim 1, wherein the performing comprises reactivation of at least one operation.

22. The method as claimed in claim 1 and 21, wherein the at least one operation comprises one or more of:
transmission of one or more of SSB, control channel, data channel, and RS, and
reception of one or more of RACH, control channel, data channel and RS.

23. The method as claimed in claim 1, wherein one or more of receiving and performing is either semi-static or dynamic.

24. The method as claimed in claim 7 and 13, wherein the signalling is in at least one of Downlink Control Information (DCI), broadcast channel, Medium Access Control Element (MAC-CE), and Radio Resource Control (RRC) message.

25. The method as claimed in claims 1 and 13, wherein the receiving is in at least one of Control Information, broadcast channel, Medium Access Control Element (MAC-CE), RACH and Radio Resource Control (RRC) message.

26. The method as claimed in claim 1, wherein the performing is applicable for one or more of at least one first cell, at least one beam, at least one carrier, and at least one sector.

27. The method as claimed in claim 1, wherein the receiving is performed in one of at least one first cell, and at least one second cell.

28. The method as claimed in claims 7 and 13, wherein signalling by at least one first node is performed through the at least one of first cell and second cell.

29. The method as claimed in claim 13, wherein the signal quality comprises at least one of Reference Signal Received Power (RSRP), Reference Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and Signal to Noise plus Interference ratio (SINR).

30. The method as claimed in claim 1, wherein a time offset between a time resource of reception, and a time resource of performing is one of indicated to the at least one second node and predefined in the standards.

31. The method as claimed in claim 1, wherein the performing comprises performing the at least one operation for one of:
a duration of time, wherein the duration is one of predefined and configured; and
a number of times, wherein the number is one of predefined and configured.

32. The method as claimed in claim 1, further comprises signaling, by the at least one first node, a deactivation command, wherein the deactivation command indicate deactivation of at least one operation.

33. The method as claimed in claim 1, wherein performing comprises transmitting an activation command to at least one third node for activation of at least one operation.

34. The method as claimed in claim 33, comprises performing by the at least one first node time synchronization with the at least one third node.

35. The method as claimed in claim 33, wherein the at least one first node informs resources for the activation command to one of the at least one third node or the network.

36. The method as claimed in claim 33, wherein the at least one third node comprises one or more of at least one active BS, at least one IAB node, at least one DU, at least one UE, and at least one relay.

37. A method of energy saving in a cellular network, the method comprising:
receiving, by the at least one second node, at least one signal, wherein the at least one signal comprises at least one of an activation command for activation of at least one operation, and a configuration of the at least one operation;
performing by the at least one second node, at least one operation based on the at least one signal; and
transmitting, by the at least one second node, a report to the at least one first node based on the at least one operation.

38. The method as claimed in claim 37, wherein the performing the at least one operation comprises at least one of:
identifying, a cell ID indicated in the at least one signal,
reactivation of the at least one operation,
receiving one or more of SSB,
receiving at least one of control channel, data channel, and RS,
measuring at least one parameter using the at least one second signal, and
transmitting a trigger signal based on the configuration of the at least one operation.

39. The method as claimed in claim 37, wherein the trigger signal is one of broadcasted and transmitted to the at least one first node.

40. The method as claimed in claim 37, wherein the at least one first node comprises one or more of at least one Base Station (BS), at least one Integrated Access and Backhaul (IAB) node, at least one relay, at least one User Equipment (UE) and at least one Distributed Unit (DU).

41. The method as claimed in claim 37, wherein the at least one second node comprises one or more of at least one UE, at least one IAB node, at least one DU, at least one Mobile Termination (MT) unit, at least one relay, and at least one BS.

42. The method as claimed in claim 40 and 41, wherein the UE is one of a connected UE, a non-connected UE, an inactive UE, and a new UE searching for a new BS.

43. The method as claimed in claim 37, wherein the configuration comprises at least one of:
a set of resources,
a command to use a predefined set of resources,
at least one parameter for measurement and reporting,
at least one periodicity,
ON-OFF cycle,
at least one SSB index,
Half frame index, and
validity of the configuration.

44. The method as claimed in claim 43, wherein the at least one SSB index is configured using at least one bitmap, wherein each bit of the bitmap corresponding to one SSB index.

45. The method as claimed in claim 43, wherein the set of resources comprises at least one of a time resource, a frequency resource, and a spatial resource.

46. The method as claimed in claim 45, wherein the spatial resource comprises at least one of SSB index, beam index, beam pair index, reference signal index (RS-ID).

47. The method as claimed in 43, wherein the ON-OFF cycle comprises at least one of an ON duration, an OFF duration and a periodicity.

48. The method as claimed in 47, wherein the at least one second node transmits the trigger signal in the ON duration.

49. The method as claimed in claim 43, wherein the set of resources is for performing at least one of:
reception of the activation command,
reactivation of the at least one operation.
transmission of the trigger signal,
performing measurement, and
transmission of the report.

50. The method as claimed in claim 43, wherein the at least one parameter comprises one or more of signal quality, location of at least one UE, identity of at least one signal measured, at least one quantity derived from at least one signal and direction of movement of the at least one UE.

51. The method as claimed in claim 50, wherein the signal quality comprises at least one of Reference Signal Received Power (RSRP), Reference Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and Signal to Noise plus Interference ratio (SINR).

52. The method as claimed in claim 38, wherein the trigger signal is at least one of a signal representing presence of a new UE, an indication signal, a predefined sequence, a Random Access Channel (RACH) signal, a low complexity wake up signal, location of at least one UE, identity of at least one received signal, cell id indicated in the received signal, and a Sounding Reference Signal (SRS).

53. The method as claimed in claim 37, wherein the report comprises at least one of a measurement report containing the at least one quantity, an indication signal upon reception of the at least one signal, and a RACH.

54. The method as claimed in claim 37, wherein the performing is applicable for one or more of at least one first cell, at least one beam, at least one carrier, and at least one sector.

55. The method as claimed in claim 37, wherein the performing the at least one operation is performed up to one of:
a duration of time, wherein the duration is one of predefined and configured; and
a number of times, wherein the number is one of predefined and configured,

56. The method as claimed in claim 37, further comprises receiving, by the at least one second node, a deactivation command, wherein the deactivation command indicate deactivation of at least one operation.

57. The method as claimed in claim 37, wherein one or more of receiving, performing and transmitting is either semi-static or dynamic.

58. The method as claimed in claim 37 & 56, wherein the receiving is in at least one of Downlink Control Information (DCI), broadcast channel, Medium Access Control Element (MAC-CE), and Radio Resource Control (RRC) message.

59. The method as claimed in claims 37, wherein the transmitting is in at least one of Control Information, data channel, broadcast channel, Medium Access Control Element (MAC-CE), RACH and Radio Resource Control (RRC) message.

60. The method as claimed in claim 37, wherein at least one of the receiving and transmitting is performed in one of at least one first cell, and at least one second cell.

61. The method as claimed in claim 37, wherein a time offset between a time resource of reception, and a time resource of performing is one of indicated to the at least one second node and predefined in the standards.

62. The method as claimed in claim 61, wherein the time offset is in terms of slots, subframes, mili seconds, subset of mili seconds, and seconds.

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