Communication apparatus and method for handling a tracking reference signal scheduling

Patent metadata

Field	Value
Publication number	US-12309105-B2
Application number	US-202217874260-A
Country	US
Kind code	B2
Filing date	Jul 26, 2022
Priority date	Jul 13, 2022
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

An embodiment of the invention provides a communication apparatus comprising a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: dividing a tracking reference signal (TRS) set into a plurality of TRS subsets; scheduling a first part of the plurality of TRS subsets for a beam management; and scheduling a second part of the plurality of TRS subsets for a synchronization.

First claim

What is claimed is:

1. A communication apparatus, comprising:
a radio transceiver, transmitting or receiving wireless signals in a wireless network; and
a modem processor, coupled to the radio transceiver and configured to perform operations comprising:
dividing a tracking reference signal (TRS) set into a plurality of TRS subsets;
scheduling a first part of the plurality of TRS subsets for a beam management;
scheduling a second part of the plurality of TRS subsets for a synchronization; and
scheduling a fourth part of the plurality of TRS subsets for at least one measurement, wherein the second part of the plurality of TRS subsets and the fourth part of the plurality of TRS subsets are overlapped.

2. The communication apparatus of claim 1 , wherein a third part of the plurality of TRS subsets is not available (N/A).

3. The communication apparatus of claim 1 , wherein the at least one measurement comprises at least one of a control element (CE) measurement, a network element (NE) measurement, a channel state information (CSI) measurement, a radio link monitoring (RLM) measurement or a Layer 1 Reference Symbol Received Power (L1-RSRP) measurement.

4. The communication apparatus of claim 1 , wherein the first part of the plurality of TRS subsets comprises a plurality of first non-continuous TRS subsets.

5. The communication apparatus of claim 1 , wherein the second part of the plurality of TRS subsets comprises a plurality of second non-continuous TRS subsets.

6. The communication apparatus of claim 1 , wherein the first part of the plurality of TRS subsets and the second part of the plurality of TRS subsets are overlapped.

7. The communication apparatus of claim 1 , wherein the TRS set comprises a plurality of TRS symbols.

8. A communication apparatus, comprising:
a radio transceiver, transmitting or receiving wireless signals in a wireless network; and
a modem processor, coupled to the radio transceiver and configured to perform operations comprising:
scheduling a tracking reference signal (TRS) set for a beam management or a synchronization as default;
dividing the TRS set into a plurality of TRS subsets, scheduling a first part of the plurality of TRS subsets for the beam management, and scheduling a second part of the plurality of TRS subsets for the synchronization, if an average (AR) signal-to-noise ratio (SNR) of the TRS set is not smaller than a first threshold and a one-shot (OS) SNR of the TRS set is not smaller than a second threshold; and
scheduling the TRS set for the beam management or the synchronization, if the AR SNR of the TRS set is not greater than a third threshold or the OS SNR of the TRS set is not greater than a forth threshold.

9. The communication apparatus of claim 8 , wherein a third part of the plurality of TRS subsets is not available (N/A).

10. The communication apparatus of claim 8 , wherein the communication apparatus schedules a fourth part of the plurality of TRS subsets for at least one measurement.

11. The communication apparatus of claim 10 , wherein the at least one measurement comprises at least one of a control element (CE) measurement, a network element (NE) measurement, a channel state information (CSI) measurement, a radio link monitoring (RLM) measurement or a Layer 1 Reference Symbol Received Power (L1-RSRP) measurement.

12. The communication apparatus of claim 10 , wherein the second part of the plurality of TRS subsets and the fourth part of the plurality of TRS subsets are overlapped.

13. The communication apparatus of claim 8 , wherein the first part of the plurality of TRS subsets comprises a plurality of first non-continuous TRS subsets.

14. The communication apparatus of claim 8 , wherein the second part of the plurality of TRS subsets comprises a plurality of second non-continuous TRS subsets.

15. The communication apparatus of claim 8 , wherein the first part of the plurality of TRS subsets and the second part of the plurality of TRS subsets are overlapped.

16. The communication apparatus of claim 8 , wherein the TRS set comprises a plurality of TRS symbols.

17. A method for handling a tracking reference signal (TRS) scheduling, comprising:
dividing a tracking reference signal set into a plurality of TRS subsets;
scheduling a first part of the plurality of TRS subsets for a beam management;
scheduling a second part of the plurality of TRS subsets for a synchronization; and
scheduling a fourth part of the plurality of TRS subsets for at least one measurement, wherein the second part of the plurality of TRS subsets and the fourth part of the plurality of TRS subsets are overlapped.

18. A method for handling a tracking reference signal (TRS) scheduling, comprising:
scheduling a tracking reference signal set for a beam management or a synchronization as default;
dividing the TRS set into a plurality of TRS subsets, scheduling a first part of the plurality of TRS subsets for the beam management, and scheduling a second part of the plurality of TRS subsets for the synchronization, if an average (AR) signal-to-noise ratio (SNR) of the TRS set is not smaller than a first threshold and a one-shot (OS) SNR of the TRS set is not smaller than a second threshold; and
scheduling the TRS set for the beam management or the synchronization, if the AR SNR of the TRS set is not greater than a third threshold or the OS SNR of the TRS set is not greater than a forth threshold.

Assignees

• Mediatek Singapore Pte Ltd

Inventors

• Chen Biwei
• Li Yabo
• Xu Fei
• Liu Yaochao
• Chen Yen-Chen
• Chen Chii-Horng
• Xu Mingjun

Classifications

• H04L5/006 Primary

  Quality of the received signal, e.g. BER, SNR, water filling · CPC title

• H04L43/16

  Threshold monitoring · CPC title

• H04W52/0212

  managed by the network, e.g. network or access point is leader and terminal is follower · CPC title

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L5/0094 Primary

  Indication of how sub-channels of the path are allocated · CPC title