Reference signal notification method and apparatus

Patent metadata

Field	Value
Publication number	US-12381679-B2
Application number	US-202418666325-A
Country	US
Kind code	B2
Filing date	May 16, 2024
Priority date	May 5, 2017
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

Embodiments of the present invention provide a reference signal notification method, including: sending, by a network device, a reference signal notification message, where the reference signal notification message includes time resource information of a reference signal. According to the embodiments of the present invention, the reference signal notification message in the present invention is used to notify UE of a reference signal configuration, especially information about a CSI-RS, so that the network device can flexibly provide a reference signal, especially a CSI-RS, and the UE can more effectively receive the reference signal, especially the CSI-RS.

First claim

The invention claimed is:

1. An apparatus, comprising at least one processor, configured to execute instructions in a memory to cause the apparatus to perform the following:
sending a reference signal notification message, wherein the reference signal notification message comprises time resource information of a reference signal, wherein the reference signal is a channel state information reference signal (CSI-RS) for mobility measurement, wherein the reference signal notification message further comprises a cell identity and numerology information of the CSI-RS, and wherein the reference signal notification message further comprises associated synchronization signal (SS) block time index.

2. The apparatus according to claim 1 , wherein:
the time resource information is at least one of subframe configuration information, a time offset, or measurement window information of the CSI-RS.

3. The apparatus according to claim 1 , wherein the reference signal notification message further comprises:
beam information of the CSI-RS, wherein the beam information is information of a synchronization signal (SS) block.

4. The apparatus according to claim 3 , wherein the reference signal notification message further comprises one or more pieces of the following information:
periodicity information corresponding to a subframe of the CSI-RS, bandwidth information of the CSI-RS, antenna port information of the CSI-RS, or time-frequency resource mapping relationship information of the CSI-RS.

5. The apparatus according to claim 1 , wherein the reference signal notification message further comprises: periodicity information of the CSI-RS.

6. The apparatus according to claim 1 , wherein the numerology information comprises a subcarrier spacing.

7. The apparatus according to claim 6 , wherein the subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, or 120 kHz.

8. The apparatus according to claim 1 , wherein the reference signal notification message is sent by a network device or a chip for the network device to a terminal device being in a connection state.

9. The apparatus according to claim 8 , wherein the network device corresponds to a current cell of the terminal device, or, a neighboring cell of a current cell of the terminal device.

10. The apparatus according to claim 1 , wherein the reference signal notification message further comprises reference information that indicates a serving cell that the time resource information is based on.

11. An apparatus, comprising at least one processor, configured to execute instructions in a memory to cause the apparatus to perform the following:
receiving a reference signal notification message, wherein the reference signal notification message comprises time resource information of a reference signal, wherein the reference signal a channel state information reference signal (CSI-RS) for mobility measurement, wherein the reference signal notification message further comprises a cell identity and numerology information of the CSI-RS, and wherein the reference signal notification message further comprises associated synchronization signal (SS) block time index.

12. The apparatus according to claim 11 , wherein:
the time resource information is at least one of subframe configuration information, a time offset, or measurement window information of the CSI-RS.

13. The apparatus according to claim 11 , wherein the reference signal notification message further comprises:
beam information of the CSI-RS, wherein the beam information is information of a SS block.

14. The apparatus according to claim 13 , wherein the reference signal notification message further comprises one or more pieces of the following information:
periodicity information corresponding to a subframe of the CSI-RS, bandwidth information of the CSI-RS, antenna port information of the CSI-RS, or time-frequency resource mapping relationship information of the CSI-RS.

15. The apparatus according to claim 11 , wherein the reference signal notification message further comprises: periodicity information of the CSI-RS.

16. The apparatus according to claim 11 , wherein the numerology information comprises a subcarrier spacing.

17. The apparatus according to claim 16 , wherein the subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, or 120 kHz.

18. The apparatus according to claim 11 , wherein the reference signal notification message is received by a terminal device or a chip for the terminal device from a network device, wherein the terminal device is in a connection state.

19. The apparatus according to claim 18 , wherein the network device corresponds to a current cell of the terminal device, or, a neighboring cell of a current cell of the terminal device.

20. The apparatus according to claim 11 , wherein the reference signal notification message further comprises reference information that indicates a serving cell that the time resource information is based on.

Assignees

• Huawei Tech Co Ltd

Inventors

• Luo Jun
• Xiang Zhengzheng
• Liu Jin
• Yuan Pu
• Au Kelvin Kar Kin
• Zarifi Keyvan
• Baligh Mohammadhadi
• Maaref Amine

Classifications

• H04W56/0055

  determining timing error of reception due to propagation delay · CPC title

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04B7/0626 Primary

  Channel coefficients, e.g. channel state information [CSI] · CPC title

• H04W36/0085

  Hand-off measurements · CPC title

• H04B17/327

  Received signal code power [RSCP] · CPC title