METHOD AND APPARATUS FOR CALCULATING BEAMFORMING BASED PAGING OCCASION IN WIRELESS COMMUNICATION SYSTEM

• US 20180026698A1
• Filed: 07/18/2017
• Published: 01/25/2018
• Est. Priority Date: 07/20/2016
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Youngdae, KIM, Sangwon, LEE, Jaewook
• Granted Patent: US 10,680,699 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/043 using best eigenmode, e.g. beam forming or beam steering
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04B 7/0695 using beam selection
• CPC Class Codes: H04B 7/1855 using a telephonic control signal, e.g. propagation delay variation, Doppler frequency variation, power variation, beam identification
• CPC Class Codes: H04B 7/2125 Synchronisation

Abstract

According to the present invention, a user equipment (UE) calculates its paging occasion based on a specific beam to monitor paging. In detail, the UE selects at least one beam among multiple beams, calculates a paging occasion consisting of the at least one beam, and monitors a paging in the paging occasion. When the paging occasion consists of the multiple beams including the at least one beam, the paging may be monitored in a part of the paging occasion where the at least one beam is transmitted. Alternatively, when the paging occasion only consists of the at least one beam, the paging may be monitored in all of the paging occasion where the at least one beam is transmitted.

Claims

1. A method for calculating a beamforming based paging occasion, by a user equipment (UE), in a wireless communication system, the method comprising:

selecting, by the UE, at least one beam among multiple beams;

calculating, by the UE, a paging occasion consisting of the at least one beam; and

monitoring, by the UE, a paging in the paging occasion.

2. The method of claim 1, wherein the paging occasion is calculated based on a beam index of the at least one beam.

3. The method of claim 1, wherein the at least one beam has a highest quality among the multiple beams.

4. The method of claim 1, wherein the at least one beam has a quality above a threshold.

5. The method of claim 1, wherein the paging occasion consists of the multiple beams including the at least one beam.

6. The method of claim 5, wherein the paging is monitored in a part of the paging occasion where the at least one beam is transmitted.

7. The method of claim 1, wherein the paging occasion only consists of the at least one beam.

8. The method of claim 7, wherein the paging is monitored in all of the paging occasion where the at least one beam is transmitted.

9. The method of claim 1, wherein the paging includes a paging message or a paging indicator.

10. The method of claim 9, wherein the paging indicator corresponds to a paging radio network temporary identity (P-RNTI).

11. The method of claim 1, wherein the paging occasion is calculated based on a number of the multiple beams.

12. The method of claim 1, wherein the paging occasion is calculated based on a number of beams provided in a cell.

13. The method of claim 1, wherein the paging occasion is calculated based on a number of beams in a carrier corresponding to the cell.

14. The method of claim 1, wherein the paging occasion is calculated based on a number of synchronization signal (SS) blocks.

15. The method of claim 1, wherein the paging occasion is calculated based on a periodicity of SS block transmission.

16. A user equipment (UE) in a wireless communication system, the UE comprising:

a memory;

a transceiver; and

a processor, coupled to the memory and the transceiver, that;

selects at least one beam among multiple beams,

calculates a paging occasion consisting of the at least one beam, and

monitors a paging in the paging occasion.

17. The UE of claim 16, wherein the paging occasion is calculated based on a beam index of the at least one beam.

18. The UE of claim 16, wherein the at least one beam has a highest quality among the multiple beams, or has a quality above a threshold.

19. The UE of claim 16, wherein the paging occasion consists of the multiple beams including the at least one beam, and

wherein the paging is monitored in a part of the paging occasion where the at least one beam is transmitted.

20. The UE of claim 16, wherein the paging occasion only consists of the at least one beam, and

wherein the paging is monitored in all of the paging occasion where the at least one beam is transmitted.