Information transmission method and apparatus, related device, and storage device

Patent metadata

Field	Value
Publication number	US-11876578-B2
Application number	US-202118001470-A
Country	US
Kind code	B2
Filing date	Jun 16, 2021
Priority date	Jun 16, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

An information transmission method includes that: the network device transmits first information to a terminal, the first information indicating a first Reference Signal (RS) and a second RS, the first RS being associated with a Doppler shift, Doppler spread, average delay and delay spread, and the second RS being associated with one of the following: average delay; delay spread; and average delay and delay spread.

First claim

What is claimed is:

1. An information transmission method, applied to a network device and comprising:
transmitting first information to a terminal, wherein the first information indicates a first Transmission Configuration Indication-State (TCI-State) and a second TCI-state, the first TCI-State indicates a first Reference Signal (RS) and the second TCI-State indicates a second RS, the first RS is corresponding to QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread}, and the second RS is corresponding to the QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread} but by means of pre-configuration or signaling indication, the second RS is not associated with Doppler shift and Doppler spread or the second RS is not considered regarding the Doppler shift and the Doppler spread.

2. The method of claim 1 , wherein the first information is transmitted to the terminal by one of the following ways:
Radio Resource Control (RRC) signaling;
Medium Access Control Control Element (MAC CE); and
Downlink Control Information (DCI).

3. The method of claim 1 , wherein the first RS comprises a first Tracking Reference Signal (TRS); and the second RS comprises a second TRS.

4. The method of claim 1 , further comprising:
receiving an uplink signal transmitted by the terminal, wherein a modulated carrier frequency of the uplink signal is associated with a carrier frequency at which the first RS is received; or the modulated carrier frequency of the uplink signal is unassociated with a carrier frequency at which the second RS is received.

5. A non-transitory storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing steps of the method of claim 1 .

6. An information transmission method, applied to a terminal and comprising:
receiving first information transmitted by a network side, wherein the first information indicates a first Transmission Configuration Indication-State (TCI-State) and a second TCI-state, the first TCI-State indicates a first Reference Signal (RS) and the second TCI-State indicates a second RS, the first RS is corresponding to QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread}, and the second RS is corresponding to the QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread} but by means of pre-configuration or signaling indication, the second RS is not associated with Doppler shift and Doppler spread or the second RS is not considered regarding the Doppler shift and the Doppler spread.

7. The method of claim 6 , wherein the first information transmitted by the terminal side is received by one of the following ways:
Radio Resource Control (RRC) signaling;
Medium Access Control Control Element (MAC CE); and
Downlink Control Information (DCI).

8. The method of claim 6 , wherein the second RS is capable of associated with the Doppler shift, the Doppler spread, the average delay, and the delay spread;
determining, by using the first information, that the second RS is associated with one of:
average delay;
delay spread; and
average delay and delay spread.

9. The method of claim 6 , wherein the first RS comprises a first Tracking Reference Signal (TRS); and the second RS comprises a second TRS.

10. The method of claim 6 , further comprising:
determining a modulated carrier frequency of an uplink signal, wherein the modulated carrier frequency of the uplink signal is associated with a carrier frequency at which the first RS is received, or the modulated carrier frequency of the uplink signal is unassociated with a carrier frequency at which the second RS is received; and
transmitting the uplink signal at the determined modulated carrier frequency.

11. A terminal implementing the method of claim 6 , comprising: a second communication interface and a second processor; wherein the second communication interface is configured to execute steps of the method.

12. The terminal of claim 11 , wherein the first information transmitted by the terminal side is received by one of the following ways:
Radio Resource Control (RRC) signaling;
Medium Access Control Control Element (MAC CE); and
Downlink Control Information (DCI).

13. The terminal of claim 11 , wherein the second RS is capable of associated with the Doppler shift, the Doppler spread, the average delay, and the delay spread;
the second processor is configured to determine, by using the first information, that the second RS is associated with one of:
average delay;
delay spread; and
average delay and delay spread.

14. The terminal of claim 11 , wherein the first RS comprises a first Tracking Reference Signal (TRS); and the second RS comprises a second TRS.

15. The terminal of claim 11 , the second processor is further configured to:
determine a modulated carrier frequency of an uplink signal, wherein the modulated carrier frequency of the uplink signal is associated with a carrier frequency at which the first RS is received, or the modulated carrier frequency of the uplink signal is unassociated with a carrier frequency at which the second RS is received; and
the second communication interface is configured to transmit the uplink signal at the determined modulated carrier frequency.

16. A non-transitory storage medium on which a computer program is stored, the computer program, when executed by a processor, implementing steps of the method of claim 6 .

17. A network device, comprising: a first communication interface and a first processor; wherein,
the first communication interface is configured to transmit first information to a terminal, wherein the first information indicates a first Transmission Configuration Indication-State (TCI-State) and a second TCI-state, the first TCI-State indicates a first Reference Signal (RS) and the second TCI-State indicates a second RS, the first RS is corresponding to QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread}, and the second RS is corresponding to the QCL-TypeA {Doppler shift, Doppler spread, average delay, delay spread} but by means of pre-configuration or signaling indication, the second RS is not associated with Doppler shift and Doppler spread or the second RS is not considered regarding the Doppler shift and the Doppler spread.

18. The network device of claim 12 , wherein the first information is transmitted to the terminal by one of the following ways:
Radio Resource Control (RRC) signaling;
Medium Access Control Control Element (MAC CE); and
Downlink Control Information (DCI).

19. The network device of claim 12 , wherein the first RS comprises a first Tracking Reference Signal (TRS); and the second RS comprises a second TRS.

20. The network device of claim 17 , the first communication interface is further configured to:
receive an uplink signal transmitted by the terminal, wherein a modulated carrier frequency of the uplink signal is associated with a carrier frequency at which the first RS is received; or the modulated carrier frequency of the uplink signal is unassociated with a carrier frequency at which the second RS is received.

Assignees

• China Mobile Comm Co Ltd Res Inst
• China Mobile Communications Group Co Ltd
• China Mobile Communication Co Ltd Res Inst

Inventors

• Wang Fei
• Wang Dapeng
• Li Yan
• Li Nan
• Liu Guangyi

Classifications

• H04B7/01 Primary

  Reducing phase shift · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0048 Primary

  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

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title